S: Canada K2P 0X8
N: Mikael Pettersson
-E: mikpe@it.uu.se
-W: http://user.it.uu.se/~mikpe/linux/
+E: mikpelinux@gmail.com
D: Miscellaneous fixes
N: Reed H. Petty
that the USB device has been connected to the machine. This
file is read-only.
Users:
- PowerTOP <power@bughost.org>
- http://www.lesswatts.org/projects/powertop/
+ PowerTOP <powertop@lists.01.org>
+ https://01.org/powertop/
What: /sys/bus/usb/device/.../power/active_duration
Date: January 2008
will give an integer percentage. Note that this does not
account for counter wrap.
Users:
- PowerTOP <power@bughost.org>
- http://www.lesswatts.org/projects/powertop/
+ PowerTOP <powertop@lists.01.org>
+ https://01.org/powertop/
What: /sys/bus/usb/devices/<busnum>-<port[.port]>...:<config num>-<interface num>/supports_autosuspend
Date: January 2008
--- /dev/null
+What: /sys/class/powercap/
+Date: September 2013
+KernelVersion: 3.13
+Contact: linux-pm@vger.kernel.org
+Description:
+ The powercap/ class sub directory belongs to the power cap
+ subsystem. Refer to
+ Documentation/power/powercap/powercap.txt for details.
+
+What: /sys/class/powercap/<control type>
+Date: September 2013
+KernelVersion: 3.13
+Contact: linux-pm@vger.kernel.org
+Description:
+ A <control type> is a unique name under /sys/class/powercap.
+ Here <control type> determines how the power is going to be
+ controlled. A <control type> can contain multiple power zones.
+
+What: /sys/class/powercap/<control type>/enabled
+Date: September 2013
+KernelVersion: 3.13
+Contact: linux-pm@vger.kernel.org
+Description:
+ This allows to enable/disable power capping for a "control type".
+ This status affects every power zone using this "control_type.
+
+What: /sys/class/powercap/<control type>/<power zone>
+Date: September 2013
+KernelVersion: 3.13
+Contact: linux-pm@vger.kernel.org
+Description:
+ A power zone is a single or a collection of devices, which can
+ be independently monitored and controlled. A power zone sysfs
+ entry is qualified with the name of the <control type>.
+ E.g. intel-rapl:0:1:1.
+
+What: /sys/class/powercap/<control type>/<power zone>/<child power zone>
+Date: September 2013
+KernelVersion: 3.13
+Contact: linux-pm@vger.kernel.org
+Description:
+ Power zones may be organized in a hierarchy in which child
+ power zones provide monitoring and control for a subset of
+ devices under the parent. For example, if there is a parent
+ power zone for a whole CPU package, each CPU core in it can
+ be a child power zone.
+
+What: /sys/class/powercap/.../<power zone>/name
+Date: September 2013
+KernelVersion: 3.13
+Contact: linux-pm@vger.kernel.org
+Description:
+ Specifies the name of this power zone.
+
+What: /sys/class/powercap/.../<power zone>/energy_uj
+Date: September 2013
+KernelVersion: 3.13
+Contact: linux-pm@vger.kernel.org
+Description:
+ Current energy counter in micro-joules. Write "0" to reset.
+ If the counter can not be reset, then this attribute is
+ read-only.
+
+What: /sys/class/powercap/.../<power zone>/max_energy_range_uj
+Date: September 2013
+KernelVersion: 3.13
+Contact: linux-pm@vger.kernel.org
+Description:
+ Range of the above energy counter in micro-joules.
+
+
+What: /sys/class/powercap/.../<power zone>/power_uw
+Date: September 2013
+KernelVersion: 3.13
+Contact: linux-pm@vger.kernel.org
+Description:
+ Current power in micro-watts.
+
+What: /sys/class/powercap/.../<power zone>/max_power_range_uw
+Date: September 2013
+KernelVersion: 3.13
+Contact: linux-pm@vger.kernel.org
+Description:
+ Range of the above power value in micro-watts.
+
+What: /sys/class/powercap/.../<power zone>/constraint_X_name
+Date: September 2013
+KernelVersion: 3.13
+Contact: linux-pm@vger.kernel.org
+Description:
+ Each power zone can define one or more constraints. Each
+ constraint can have an optional name. Here "X" can have values
+ from 0 to max integer.
+
+What: /sys/class/powercap/.../<power zone>/constraint_X_power_limit_uw
+Date: September 2013
+KernelVersion: 3.13
+Contact: linux-pm@vger.kernel.org
+Description:
+ Power limit in micro-watts should be applicable for
+ the time window specified by "constraint_X_time_window_us".
+ Here "X" can have values from 0 to max integer.
+
+What: /sys/class/powercap/.../<power zone>/constraint_X_time_window_us
+Date: September 2013
+KernelVersion: 3.13
+Contact: linux-pm@vger.kernel.org
+Description:
+ Time window in micro seconds. This is used along with
+ constraint_X_power_limit_uw to define a power constraint.
+ Here "X" can have values from 0 to max integer.
+
+
+What: /sys/class/powercap/<control type>/.../constraint_X_max_power_uw
+Date: September 2013
+KernelVersion: 3.13
+Contact: linux-pm@vger.kernel.org
+Description:
+ Maximum allowed power in micro watts for this constraint.
+ Here "X" can have values from 0 to max integer.
+
+What: /sys/class/powercap/<control type>/.../constraint_X_min_power_uw
+Date: September 2013
+KernelVersion: 3.13
+Contact: linux-pm@vger.kernel.org
+Description:
+ Minimum allowed power in micro watts for this constraint.
+ Here "X" can have values from 0 to max integer.
+
+What: /sys/class/powercap/.../<power zone>/constraint_X_max_time_window_us
+Date: September 2013
+KernelVersion: 3.13
+Contact: linux-pm@vger.kernel.org
+Description:
+ Maximum allowed time window in micro seconds for this
+ constraint. Here "X" can have values from 0 to max integer.
+
+What: /sys/class/powercap/.../<power zone>/constraint_X_min_time_window_us
+Date: September 2013
+KernelVersion: 3.13
+Contact: linux-pm@vger.kernel.org
+Description:
+ Minimum allowed time window in micro seconds for this
+ constraint. Here "X" can have values from 0 to max integer.
+
+What: /sys/class/powercap/.../<power zone>/enabled
+Date: September 2013
+KernelVersion: 3.13
+Contact: linux-pm@vger.kernel.org
+Description
+ This allows to enable/disable power capping at power zone level.
+ This applies to current power zone and its children.
What: /sys/devices/.../power/
Date: January 2009
-Contact: Rafael J. Wysocki <rjw@sisk.pl>
+Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
The /sys/devices/.../power directory contains attributes
allowing the user space to check and modify some power
What: /sys/devices/.../power/wakeup
Date: January 2009
-Contact: Rafael J. Wysocki <rjw@sisk.pl>
+Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
The /sys/devices/.../power/wakeup attribute allows the user
space to check if the device is enabled to wake up the system
What: /sys/devices/.../power/control
Date: January 2009
-Contact: Rafael J. Wysocki <rjw@sisk.pl>
+Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
The /sys/devices/.../power/control attribute allows the user
space to control the run-time power management of the device.
What: /sys/devices/.../power/async
Date: January 2009
-Contact: Rafael J. Wysocki <rjw@sisk.pl>
+Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
The /sys/devices/.../async attribute allows the user space to
enable or diasble the device's suspend and resume callbacks to
What: /sys/devices/.../power/wakeup_count
Date: September 2010
-Contact: Rafael J. Wysocki <rjw@sisk.pl>
+Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
The /sys/devices/.../wakeup_count attribute contains the number
of signaled wakeup events associated with the device. This
What: /sys/devices/.../power/wakeup_active_count
Date: September 2010
-Contact: Rafael J. Wysocki <rjw@sisk.pl>
+Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
The /sys/devices/.../wakeup_active_count attribute contains the
number of times the processing of wakeup events associated with
What: /sys/devices/.../power/wakeup_abort_count
Date: February 2012
-Contact: Rafael J. Wysocki <rjw@sisk.pl>
+Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
The /sys/devices/.../wakeup_abort_count attribute contains the
number of times the processing of a wakeup event associated with
What: /sys/devices/.../power/wakeup_expire_count
Date: February 2012
-Contact: Rafael J. Wysocki <rjw@sisk.pl>
+Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
The /sys/devices/.../wakeup_expire_count attribute contains the
number of times a wakeup event associated with the device has
What: /sys/devices/.../power/wakeup_active
Date: September 2010
-Contact: Rafael J. Wysocki <rjw@sisk.pl>
+Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
The /sys/devices/.../wakeup_active attribute contains either 1,
or 0, depending on whether or not a wakeup event associated with
What: /sys/devices/.../power/wakeup_total_time_ms
Date: September 2010
-Contact: Rafael J. Wysocki <rjw@sisk.pl>
+Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
The /sys/devices/.../wakeup_total_time_ms attribute contains
the total time of processing wakeup events associated with the
What: /sys/devices/.../power/wakeup_max_time_ms
Date: September 2010
-Contact: Rafael J. Wysocki <rjw@sisk.pl>
+Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
The /sys/devices/.../wakeup_max_time_ms attribute contains
the maximum time of processing a single wakeup event associated
What: /sys/devices/.../power/wakeup_last_time_ms
Date: September 2010
-Contact: Rafael J. Wysocki <rjw@sisk.pl>
+Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
The /sys/devices/.../wakeup_last_time_ms attribute contains
the value of the monotonic clock corresponding to the time of
What: /sys/devices/.../power/wakeup_prevent_sleep_time_ms
Date: February 2012
-Contact: Rafael J. Wysocki <rjw@sisk.pl>
+Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
The /sys/devices/.../wakeup_prevent_sleep_time_ms attribute
contains the total time the device has been preventing
What: /sys/devices/.../power/pm_qos_latency_us
Date: March 2012
-Contact: Rafael J. Wysocki <rjw@sisk.pl>
+Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
The /sys/devices/.../power/pm_qos_resume_latency_us attribute
contains the PM QoS resume latency limit for the given device,
What: /sys/devices/.../power/pm_qos_no_power_off
Date: September 2012
-Contact: Rafael J. Wysocki <rjw@sisk.pl>
+Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
The /sys/devices/.../power/pm_qos_no_power_off attribute
is used for manipulating the PM QoS "no power off" flag. If
What: /sys/devices/.../power/pm_qos_remote_wakeup
Date: September 2012
-Contact: Rafael J. Wysocki <rjw@sisk.pl>
+Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
The /sys/devices/.../power/pm_qos_remote_wakeup attribute
is used for manipulating the PM QoS "remote wakeup required"
What: /sys/power/
Date: August 2006
-Contact: Rafael J. Wysocki <rjw@sisk.pl>
+Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
The /sys/power directory will contain files that will
provide a unified interface to the power management
What: /sys/power/state
Date: August 2006
-Contact: Rafael J. Wysocki <rjw@sisk.pl>
+Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
The /sys/power/state file controls the system power state.
Reading from this file returns what states are supported,
What: /sys/power/disk
Date: September 2006
-Contact: Rafael J. Wysocki <rjw@sisk.pl>
+Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
The /sys/power/disk file controls the operating mode of the
suspend-to-disk mechanism. Reading from this file returns
What: /sys/power/image_size
Date: August 2006
-Contact: Rafael J. Wysocki <rjw@sisk.pl>
+Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
The /sys/power/image_size file controls the size of the image
created by the suspend-to-disk mechanism. It can be written a
What: /sys/power/pm_trace
Date: August 2006
-Contact: Rafael J. Wysocki <rjw@sisk.pl>
+Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
The /sys/power/pm_trace file controls the code which saves the
last PM event point in the RTC across reboots, so that you can
What: /sys/power/pm_async
Date: January 2009
-Contact: Rafael J. Wysocki <rjw@sisk.pl>
+Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
The /sys/power/pm_async file controls the switch allowing the
user space to enable or disable asynchronous suspend and resume
What: /sys/power/wakeup_count
Date: July 2010
-Contact: Rafael J. Wysocki <rjw@sisk.pl>
+Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
The /sys/power/wakeup_count file allows user space to put the
system into a sleep state while taking into account the
What: /sys/power/reserved_size
Date: May 2011
-Contact: Rafael J. Wysocki <rjw@sisk.pl>
+Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
The /sys/power/reserved_size file allows user space to control
the amount of memory reserved for allocations made by device
What: /sys/power/autosleep
Date: April 2012
-Contact: Rafael J. Wysocki <rjw@sisk.pl>
+Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
The /sys/power/autosleep file can be written one of the strings
returned by reads from /sys/power/state. If that happens, a
What: /sys/power/wake_lock
Date: February 2012
-Contact: Rafael J. Wysocki <rjw@sisk.pl>
+Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
The /sys/power/wake_lock file allows user space to create
wakeup source objects and activate them on demand (if one of
What: /sys/power/wake_unlock
Date: February 2012
-Contact: Rafael J. Wysocki <rjw@sisk.pl>
+Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
The /sys/power/wake_unlock file allows user space to deactivate
wakeup sources created with the help of /sys/power/wake_lock.
When to use this method is described in detail on the
Linux/ACPI home page:
-http://www.lesswatts.org/projects/acpi/overridingDSDT.php
+https://01.org/linux-acpi/documentation/overriding-dsdt
- Generic Block Device Capability (/sys/block/<device>/capability)
cfq-iosched.txt
- CFQ IO scheduler tunables
+cmdline-partition.txt
+ - how to specify block device partitions on kernel command line
data-integrity.txt
- Block data integrity
deadline-iosched.txt
-Embedded device command line partition
+Embedded device command line partition parsing
=====================================================================
-Read block device partition table from command line.
-The partition used for fixed block device (eMMC) embedded device.
-It is no MBR, save storage space. Bootloader can be easily accessed
+Support for reading the block device partition table from the command line.
+It is typically used for fixed block (eMMC) embedded devices.
+It has no MBR, so saves storage space. Bootloader can be easily accessed
by absolute address of data on the block device.
Users can easily change the partition.
nlh->nlmsg_seq = seq++;
nlh->nlmsg_pid = getpid();
nlh->nlmsg_type = NLMSG_DONE;
- nlh->nlmsg_len = NLMSG_LENGTH(size - sizeof(*nlh));
+ nlh->nlmsg_len = size;
nlh->nlmsg_flags = 0;
m = NLMSG_DATA(nlh);
1.1 Initialization
1.2 Per-CPU Initialization
1.3 verify
-1.4 target or setpolicy?
-1.5 target
+1.4 target/target_index or setpolicy?
+1.5 target/target_index
1.6 setpolicy
2. Frequency Table Helpers
cpufreq_driver.verify - A pointer to a "verification" function.
cpufreq_driver.setpolicy _or_
-cpufreq_driver.target - See below on the differences.
+cpufreq_driver.target/
+target_index - See below on the differences.
And optionally
which is called with interrupts disabled
and _before_ the pre-suspend frequency
and/or policy is restored by a call to
- ->target or ->setpolicy.
+ ->target/target_index or ->setpolicy.
cpufreq_driver.attr - A pointer to a NULL-terminated list of
"struct freq_attr" which allow to
this CPU. A few moments later,
cpufreq_driver.verify and either
cpufreq_driver.setpolicy or
- cpufreq_driver.target is called with
- these values.
+ cpufreq_driver.target/target_index is called
+ with these values.
For setting some of these values (cpuinfo.min[max]_freq, policy->min[max]), the
frequency table helpers might be helpful. See the section 2 for more information
policy->max first, and only if this is no solution, decrease policy->min.
-1.4 target or setpolicy?
+1.4 target/target_index or setpolicy?
----------------------------
Most cpufreq drivers or even most cpu frequency scaling algorithms
only allow the CPU to be set to one frequency. For these, you use the
-->target call.
+->target/target_index call.
Some cpufreq-capable processors switch the frequency between certain
limits on their own. These shall use the ->setpolicy call
-1.4. target
+1.4. target/target_index
-------------
+The target_index call has two arguments: struct cpufreq_policy *policy,
+and unsigned int index (into the exposed frequency table).
+
+The CPUfreq driver must set the new frequency when called here. The
+actual frequency must be determined by freq_table[index].frequency.
+
+Deprecated:
+----------
The target call has three arguments: struct cpufreq_policy *policy,
unsigned int target_frequency, unsigned int relation.
cpu frequency scaling algorithms only offer the CPU to be set to one
frequency. In order to offer dynamic frequency scaling, the cpufreq
core must be able to tell these drivers of a "target frequency". So
-these specific drivers will be transformed to offer a "->target"
+these specific drivers will be transformed to offer a "->target/target_index"
call instead of the existing "->setpolicy" call. For "longrun", all
stays the same, though.
/ the limits of policy->{min,max}
/ \
/ \
- Using the ->setpolicy call, Using the ->target call,
+ Using the ->setpolicy call, Using the ->target/target_index call,
the limits and the the frequency closest
"policy" is set. to target_freq is set.
It is assured that it
+++ /dev/null
-*** Memory binding ***
-
-The /memory node provides basic information about the address and size
-of the physical memory. This node is usually filled or updated by the
-bootloader, depending on the actual memory configuration of the given
-hardware.
-
-The memory layout is described by the following node:
-
-/ {
- #address-cells = <(n)>;
- #size-cells = <(m)>;
- memory {
- device_type = "memory";
- reg = <(baseaddr1) (size1)
- (baseaddr2) (size2)
- ...
- (baseaddrN) (sizeN)>;
- };
- ...
-};
-
-A memory node follows the typical device tree rules for "reg" property:
-n: number of cells used to store base address value
-m: number of cells used to store size value
-baseaddrX: defines a base address of the defined memory bank
-sizeX: the size of the defined memory bank
-
-
-More than one memory bank can be defined.
-
-
-*** Reserved memory regions ***
-
-In /memory/reserved-memory node one can create child nodes describing
-particular reserved (excluded from normal use) memory regions. Such
-memory regions are usually designed for the special usage by various
-device drivers. A good example are contiguous memory allocations or
-memory sharing with other operating system on the same hardware board.
-Those special memory regions might depend on the board configuration and
-devices used on the target system.
-
-Parameters for each memory region can be encoded into the device tree
-with the following convention:
-
-[(label):] (name) {
- compatible = "linux,contiguous-memory-region", "reserved-memory-region";
- reg = <(address) (size)>;
- (linux,default-contiguous-region);
-};
-
-compatible: one or more of:
- - "linux,contiguous-memory-region" - enables binding of this
- region to Contiguous Memory Allocator (special region for
- contiguous memory allocations, shared with movable system
- memory, Linux kernel-specific).
- - "reserved-memory-region" - compatibility is defined, given
- region is assigned for exclusive usage for by the respective
- devices.
-
-reg: standard property defining the base address and size of
- the memory region
-
-linux,default-contiguous-region: property indicating that the region
- is the default region for all contiguous memory
- allocations, Linux specific (optional)
-
-It is optional to specify the base address, so if one wants to use
-autoconfiguration of the base address, '0' can be specified as a base
-address in the 'reg' property.
-
-The /memory/reserved-memory node must contain the same #address-cells
-and #size-cells value as the root node.
-
-
-*** Device node's properties ***
-
-Once regions in the /memory/reserved-memory node have been defined, they
-may be referenced by other device nodes. Bindings that wish to reference
-memory regions should explicitly document their use of the following
-property:
-
-memory-region = <&phandle_to_defined_region>;
-
-This property indicates that the device driver should use the memory
-region pointed by the given phandle.
-
-
-*** Example ***
-
-This example defines a memory consisting of 4 memory banks. 3 contiguous
-regions are defined for Linux kernel, one default of all device drivers
-(named contig_mem, placed at 0x72000000, 64MiB), one dedicated to the
-framebuffer device (labelled display_mem, placed at 0x78000000, 8MiB)
-and one for multimedia processing (labelled multimedia_mem, placed at
-0x77000000, 64MiB). 'display_mem' region is then assigned to fb@12300000
-device for DMA memory allocations (Linux kernel drivers will use CMA is
-available or dma-exclusive usage otherwise). 'multimedia_mem' is
-assigned to scaler@12500000 and codec@12600000 devices for contiguous
-memory allocations when CMA driver is enabled.
-
-The reason for creating a separate region for framebuffer device is to
-match the framebuffer base address to the one configured by bootloader,
-so once Linux kernel drivers starts no glitches on the displayed boot
-logo appears. Scaller and codec drivers should share the memory
-allocations.
-
-/ {
- #address-cells = <1>;
- #size-cells = <1>;
-
- /* ... */
-
- memory {
- reg = <0x40000000 0x10000000
- 0x50000000 0x10000000
- 0x60000000 0x10000000
- 0x70000000 0x10000000>;
-
- reserved-memory {
- #address-cells = <1>;
- #size-cells = <1>;
-
- /*
- * global autoconfigured region for contiguous allocations
- * (used only with Contiguous Memory Allocator)
- */
- contig_region@0 {
- compatible = "linux,contiguous-memory-region";
- reg = <0x0 0x4000000>;
- linux,default-contiguous-region;
- };
-
- /*
- * special region for framebuffer
- */
- display_region: region@78000000 {
- compatible = "linux,contiguous-memory-region", "reserved-memory-region";
- reg = <0x78000000 0x800000>;
- };
-
- /*
- * special region for multimedia processing devices
- */
- multimedia_region: region@77000000 {
- compatible = "linux,contiguous-memory-region";
- reg = <0x77000000 0x4000000>;
- };
- };
- };
-
- /* ... */
-
- fb0: fb@12300000 {
- status = "okay";
- memory-region = <&display_region>;
- };
-
- scaler: scaler@12500000 {
- status = "okay";
- memory-region = <&multimedia_region>;
- };
-
- codec: codec@12600000 {
- status = "okay";
- memory-region = <&multimedia_region>;
- };
-};
-* Samsung Exynos specific extensions to the Synopsis Designware Mobile
+* Samsung Exynos specific extensions to the Synopsys Designware Mobile
Storage Host Controller
-The Synopsis designware mobile storage host controller is used to interface
+The Synopsys designware mobile storage host controller is used to interface
a SoC with storage medium such as eMMC or SD/MMC cards. This file documents
-differences between the core Synopsis dw mshc controller properties described
-by synopsis-dw-mshc.txt and the properties used by the Samsung Exynos specific
-extensions to the Synopsis Designware Mobile Storage Host Controller.
+differences between the core Synopsys dw mshc controller properties described
+by synopsys-dw-mshc.txt and the properties used by the Samsung Exynos specific
+extensions to the Synopsys Designware Mobile Storage Host Controller.
Required Properties:
-* Rockchip specific extensions to the Synopsis Designware Mobile
+* Rockchip specific extensions to the Synopsys Designware Mobile
Storage Host Controller
-The Synopsis designware mobile storage host controller is used to interface
+The Synopsys designware mobile storage host controller is used to interface
a SoC with storage medium such as eMMC or SD/MMC cards. This file documents
-differences between the core Synopsis dw mshc controller properties described
-by synopsis-dw-mshc.txt and the properties used by the Rockchip specific
-extensions to the Synopsis Designware Mobile Storage Host Controller.
+differences between the core Synopsys dw mshc controller properties described
+by synopsys-dw-mshc.txt and the properties used by the Rockchip specific
+extensions to the Synopsys Designware Mobile Storage Host Controller.
Required Properties:
+++ /dev/null
-* Synopsis Designware Mobile Storage Host Controller
-
-The Synopsis designware mobile storage host controller is used to interface
-a SoC with storage medium such as eMMC or SD/MMC cards. This file documents
-differences between the core mmc properties described by mmc.txt and the
-properties used by the Synopsis Designware Mobile Storage Host Controller.
-
-Required Properties:
-
-* compatible: should be
- - snps,dw-mshc: for controllers compliant with synopsis dw-mshc.
-* #address-cells: should be 1.
-* #size-cells: should be 0.
-
-# Slots: The slot specific information are contained within child-nodes with
- each child-node representing a supported slot. There should be atleast one
- child node representing a card slot. The name of the child node representing
- the slot is recommended to be slot@n where n is the unique number of the slot
- connnected to the controller. The following are optional properties which
- can be included in the slot child node.
-
- * reg: specifies the physical slot number. The valid values of this
- property is 0 to (num-slots -1), where num-slots is the value
- specified by the num-slots property.
-
- * bus-width: as documented in mmc core bindings.
-
- * wp-gpios: specifies the write protect gpio line. The format of the
- gpio specifier depends on the gpio controller. If a GPIO is not used
- for write-protect, this property is optional.
-
- * disable-wp: If the wp-gpios property isn't present then (by default)
- we'd assume that the write protect is hooked up directly to the
- controller's special purpose write protect line (accessible via
- the WRTPRT register). However, it's possible that we simply don't
- want write protect. In that case specify 'disable-wp'.
- NOTE: This property is not required for slots known to always
- connect to eMMC or SDIO cards.
-
-Optional properties:
-
-* clocks: from common clock binding: handle to biu and ciu clocks for the
- bus interface unit clock and the card interface unit clock.
-
-* clock-names: from common clock binding: Shall be "biu" and "ciu".
- If the biu clock is missing we'll simply skip enabling it. If the
- ciu clock is missing we'll just assume that the clock is running at
- clock-frequency. It is an error to omit both the ciu clock and the
- clock-frequency.
-
-* clock-frequency: should be the frequency (in Hz) of the ciu clock. If this
- is specified and the ciu clock is specified then we'll try to set the ciu
- clock to this at probe time.
-
-* num-slots: specifies the number of slots supported by the controller.
- The number of physical slots actually used could be equal or less than the
- value specified by num-slots. If this property is not specified, the value
- of num-slot property is assumed to be 1.
-
-* fifo-depth: The maximum size of the tx/rx fifo's. If this property is not
- specified, the default value of the fifo size is determined from the
- controller registers.
-
-* card-detect-delay: Delay in milli-seconds before detecting card after card
- insert event. The default value is 0.
-
-* supports-highspeed: Enables support for high speed cards (up to 50MHz)
-
-* broken-cd: as documented in mmc core bindings.
-
-* vmmc-supply: The phandle to the regulator to use for vmmc. If this is
- specified we'll defer probe until we can find this regulator.
-
-Aliases:
-
-- All the MSHC controller nodes should be represented in the aliases node using
- the following format 'mshc{n}' where n is a unique number for the alias.
-
-Example:
-
-The MSHC controller node can be split into two portions, SoC specific and
-board specific portions as listed below.
-
- dwmmc0@12200000 {
- compatible = "snps,dw-mshc";
- clocks = <&clock 351>, <&clock 132>;
- clock-names = "biu", "ciu";
- reg = <0x12200000 0x1000>;
- interrupts = <0 75 0>;
- #address-cells = <1>;
- #size-cells = <0>;
- };
-
- dwmmc0@12200000 {
- clock-frequency = <400000000>;
- num-slots = <1>;
- supports-highspeed;
- broken-cd;
- fifo-depth = <0x80>;
- card-detect-delay = <200>;
- vmmc-supply = <&buck8>;
-
- slot@0 {
- reg = <0>;
- bus-width = <8>;
- };
- };
--- /dev/null
+* Synopsys Designware Mobile Storage Host Controller
+
+The Synopsys designware mobile storage host controller is used to interface
+a SoC with storage medium such as eMMC or SD/MMC cards. This file documents
+differences between the core mmc properties described by mmc.txt and the
+properties used by the Synopsys Designware Mobile Storage Host Controller.
+
+Required Properties:
+
+* compatible: should be
+ - snps,dw-mshc: for controllers compliant with synopsys dw-mshc.
+* #address-cells: should be 1.
+* #size-cells: should be 0.
+
+# Slots: The slot specific information are contained within child-nodes with
+ each child-node representing a supported slot. There should be atleast one
+ child node representing a card slot. The name of the child node representing
+ the slot is recommended to be slot@n where n is the unique number of the slot
+ connnected to the controller. The following are optional properties which
+ can be included in the slot child node.
+
+ * reg: specifies the physical slot number. The valid values of this
+ property is 0 to (num-slots -1), where num-slots is the value
+ specified by the num-slots property.
+
+ * bus-width: as documented in mmc core bindings.
+
+ * wp-gpios: specifies the write protect gpio line. The format of the
+ gpio specifier depends on the gpio controller. If a GPIO is not used
+ for write-protect, this property is optional.
+
+ * disable-wp: If the wp-gpios property isn't present then (by default)
+ we'd assume that the write protect is hooked up directly to the
+ controller's special purpose write protect line (accessible via
+ the WRTPRT register). However, it's possible that we simply don't
+ want write protect. In that case specify 'disable-wp'.
+ NOTE: This property is not required for slots known to always
+ connect to eMMC or SDIO cards.
+
+Optional properties:
+
+* clocks: from common clock binding: handle to biu and ciu clocks for the
+ bus interface unit clock and the card interface unit clock.
+
+* clock-names: from common clock binding: Shall be "biu" and "ciu".
+ If the biu clock is missing we'll simply skip enabling it. If the
+ ciu clock is missing we'll just assume that the clock is running at
+ clock-frequency. It is an error to omit both the ciu clock and the
+ clock-frequency.
+
+* clock-frequency: should be the frequency (in Hz) of the ciu clock. If this
+ is specified and the ciu clock is specified then we'll try to set the ciu
+ clock to this at probe time.
+
+* num-slots: specifies the number of slots supported by the controller.
+ The number of physical slots actually used could be equal or less than the
+ value specified by num-slots. If this property is not specified, the value
+ of num-slot property is assumed to be 1.
+
+* fifo-depth: The maximum size of the tx/rx fifo's. If this property is not
+ specified, the default value of the fifo size is determined from the
+ controller registers.
+
+* card-detect-delay: Delay in milli-seconds before detecting card after card
+ insert event. The default value is 0.
+
+* supports-highspeed: Enables support for high speed cards (up to 50MHz)
+
+* broken-cd: as documented in mmc core bindings.
+
+* vmmc-supply: The phandle to the regulator to use for vmmc. If this is
+ specified we'll defer probe until we can find this regulator.
+
+Aliases:
+
+- All the MSHC controller nodes should be represented in the aliases node using
+ the following format 'mshc{n}' where n is a unique number for the alias.
+
+Example:
+
+The MSHC controller node can be split into two portions, SoC specific and
+board specific portions as listed below.
+
+ dwmmc0@12200000 {
+ compatible = "snps,dw-mshc";
+ clocks = <&clock 351>, <&clock 132>;
+ clock-names = "biu", "ciu";
+ reg = <0x12200000 0x1000>;
+ interrupts = <0 75 0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ dwmmc0@12200000 {
+ clock-frequency = <400000000>;
+ num-slots = <1>;
+ supports-highspeed;
+ broken-cd;
+ fifo-depth = <0x80>;
+ card-detect-delay = <200>;
+ vmmc-supply = <&buck8>;
+
+ slot@0 {
+ reg = <0>;
+ bus-width = <8>;
+ };
+ };
described in mmc.txt, can be used. Additionally the following tmio_mmc-specific
optional bindings can be used.
+Required properties:
+- compatible: "renesas,sdhi-shmobile" - a generic sh-mobile SDHI unit
+ "renesas,sdhi-sh7372" - SDHI IP on SH7372 SoC
+ "renesas,sdhi-sh73a0" - SDHI IP on SH73A0 SoC
+ "renesas,sdhi-r8a73a4" - SDHI IP on R8A73A4 SoC
+ "renesas,sdhi-r8a7740" - SDHI IP on R8A7740 SoC
+ "renesas,sdhi-r8a7778" - SDHI IP on R8A7778 SoC
+ "renesas,sdhi-r8a7779" - SDHI IP on R8A7779 SoC
+ "renesas,sdhi-r8a7790" - SDHI IP on R8A7790 SoC
+
Optional properties:
- toshiba,mmc-wrprotect-disable: write-protect detection is unavailable
-
-When used with Renesas SDHI hardware, the following compatibility strings
-configure various model-specific properties:
-
-"renesas,sh7372-sdhi": (default) compatible with SH7372
-"renesas,r8a7740-sdhi": compatible with R8A7740: certain MMC/SD commands have to
- wait for the interface to become idle.
Clock Properties:
+ - fsl,cksel Timer reference clock source.
- fsl,tclk-period Timer reference clock period in nanoseconds.
- fsl,tmr-prsc Prescaler, divides the output clock.
- fsl,tmr-add Frequency compensation value.
clock. You must choose these carefully for the clock to work right.
Here is how to figure good values:
- TimerOsc = system clock MHz
+ TimerOsc = selected reference clock MHz
tclk_period = desired clock period nanoseconds
NominalFreq = 1000 / tclk_period MHz
FreqDivRatio = TimerOsc / NominalFreq (must be greater that 1.0)
Pulse Per Second (PPS) signal, since this will be offered to the PPS
subsystem to synchronize the Linux clock.
+ Reference clock source is determined by the value, which is holded
+ in CKSEL bits in TMR_CTRL register. "fsl,cksel" property keeps the
+ value, which will be directly written in those bits, that is why,
+ according to reference manual, the next clock sources can be used:
+
+ <0> - external high precision timer reference clock (TSEC_TMR_CLK
+ input is used for this purpose);
+ <1> - eTSEC system clock;
+ <2> - eTSEC1 transmit clock;
+ <3> - RTC clock input.
+
+ When this attribute is not used, eTSEC system clock will serve as
+ IEEE 1588 timer reference clock.
+
Example:
ptp_clock@24E00 {
reg = <0x24E00 0xB0>;
interrupts = <12 0x8 13 0x8>;
interrupt-parent = < &ipic >;
+ fsl,cksel = <1>;
fsl,tclk-period = <10>;
fsl,tmr-prsc = <100>;
fsl,tmr-add = <0x999999A4>;
-* Synopsis Designware PCIe interface
+* Synopsys Designware PCIe interface
Required properties:
- compatible: should contain "snps,dw-pcie" to identify the
--- /dev/null
+* Qualcomm Atheros AR9330 High-Speed UART
+
+Required properties:
+
+- compatible: Must be "qca,ar9330-uart"
+
+- reg: Specifies the physical base address of the controller and
+ the length of the memory mapped region.
+
+- interrupt-parent: The phandle for the interrupt controller that
+ services interrupts for this device.
+
+- interrupts: Specifies the interrupt source of the parent interrupt
+ controller. The format of the interrupt specifier depends on the
+ parent interrupt controller.
+
+Additional requirements:
+
+ Each UART port must have an alias correctly numbered in "aliases"
+ node.
+
+Example:
+
+ aliases {
+ serial0 = &uart0;
+ };
+
+ uart0: uart@18020000 {
+ compatible = "qca,ar9330-uart";
+ reg = <0x18020000 0x14>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <3>;
+ };
+++ /dev/null
-* Qualcomm Atheros AR9330 High-Speed UART
-
-Required properties:
-
-- compatible: Must be "qca,ar9330-uart"
-
-- reg: Specifies the physical base address of the controller and
- the length of the memory mapped region.
-
-- interrupt-parent: The phandle for the interrupt controller that
- services interrupts for this device.
-
-- interrupts: Specifies the interrupt source of the parent interrupt
- controller. The format of the interrupt specifier depends on the
- parent interrupt controller.
-
-Additional requirements:
-
- Each UART port must have an alias correctly numbered in "aliases"
- node.
-
-Example:
-
- aliases {
- serial0 = &uart0;
- };
-
- uart0: uart@18020000 {
- compatible = "qca,ar9330-uart";
- reg = <0x18020000 0x14>;
-
- interrupt-parent = <&intc>;
- interrupts = <3>;
- };
Format: <io>,<irq>,<mode>
See header of drivers/net/hamradio/baycom_ser_hdx.c.
+ blkdevparts= Manual partition parsing of block device(s) for
+ embedded devices based on command line input.
+ See Documentation/block/cmdline-partition.txt
+
boot_delay= Milliseconds to delay each printk during boot.
Values larger than 10 seconds (10000) are changed to
no delay (0).
pages. In the event, a node is too small to have both
kernelcore and Movable pages, kernelcore pages will
take priority and other nodes will have a larger number
- of kernelcore pages. The Movable zone is used for the
+ of Movable pages. The Movable zone is used for the
allocation of pages that may be reclaimed or moved
by the page migration subsystem. This means that
HugeTLB pages may not be allocated from this zone.
the unplug protocol
never -- do not unplug even if version check succeeds
+ xen_nopvspin [X86,XEN]
+ Disables the ticketlock slowpath using Xen PV
+ optimizations.
+
xirc2ps_cs= [NET,PCMCIA]
Format:
<irq>,<irq_mask>,<io>,<full_duplex>,<do_sound>,<lockup_hack>[,<irq2>[,<irq3>[,<irq4>]]]
OPP library provides a set of helper functions to organize and query the OPP
information. The library is located in drivers/base/power/opp.c and the header
-is located in include/linux/opp.h. OPP library can be enabled by enabling
+is located in include/linux/pm_opp.h. OPP library can be enabled by enabling
CONFIG_PM_OPP from power management menuconfig menu. OPP library depends on
CONFIG_PM as certain SoCs such as Texas Instrument's OMAP framework allows to
optionally boot at a certain OPP without needing cpufreq.
OPP library facilitates this concept in it's implementation. The following
operational functions operate only on available opps:
-opp_find_freq_{ceil, floor}, opp_get_voltage, opp_get_freq, opp_get_opp_count
-and opp_init_cpufreq_table
+opp_find_freq_{ceil, floor}, dev_pm_opp_get_voltage, dev_pm_opp_get_freq, dev_pm_opp_get_opp_count
+and dev_pm_opp_init_cpufreq_table
-opp_find_freq_exact is meant to be used to find the opp pointer which can then
-be used for opp_enable/disable functions to make an opp available as required.
+dev_pm_opp_find_freq_exact is meant to be used to find the opp pointer which can then
+be used for dev_pm_opp_enable/disable functions to make an opp available as required.
WARNING: Users of OPP library should refresh their availability count using
-get_opp_count if opp_enable/disable functions are invoked for a device, the
+get_opp_count if dev_pm_opp_enable/disable functions are invoked for a device, the
exact mechanism to trigger these or the notification mechanism to other
dependent subsystems such as cpufreq are left to the discretion of the SoC
specific framework which uses the OPP library. Similar care needs to be taken
opp_get_{voltage, freq, opp_count} fall into this category.
opp_{add,enable,disable} are updaters which use mutex and implement it's own
-RCU locking mechanisms. opp_init_cpufreq_table acts as an updater and uses
+RCU locking mechanisms. dev_pm_opp_init_cpufreq_table acts as an updater and uses
mutex to implment RCU updater strategy. These functions should *NOT* be called
under RCU locks and other contexts that prevent blocking functions in RCU or
mutex operations from working.
2. Initial OPP List Registration
================================
-The SoC implementation calls opp_add function iteratively to add OPPs per
+The SoC implementation calls dev_pm_opp_add function iteratively to add OPPs per
device. It is expected that the SoC framework will register the OPP entries
optimally- typical numbers range to be less than 5. The list generated by
registering the OPPs is maintained by OPP library throughout the device
operation. The SoC framework can subsequently control the availability of the
-OPPs dynamically using the opp_enable / disable functions.
+OPPs dynamically using the dev_pm_opp_enable / disable functions.
-opp_add - Add a new OPP for a specific domain represented by the device pointer.
+dev_pm_opp_add - Add a new OPP for a specific domain represented by the device pointer.
The OPP is defined using the frequency and voltage. Once added, the OPP
is assumed to be available and control of it's availability can be done
- with the opp_enable/disable functions. OPP library internally stores
+ with the dev_pm_opp_enable/disable functions. OPP library internally stores
and manages this information in the opp struct. This function may be
used by SoC framework to define a optimal list as per the demands of
SoC usage environment.
soc_pm_init()
{
/* Do things */
- r = opp_add(mpu_dev, 1000000, 900000);
+ r = dev_pm_opp_add(mpu_dev, 1000000, 900000);
if (!r) {
pr_err("%s: unable to register mpu opp(%d)\n", r);
goto no_cpufreq;
found, else returns error. These errors are expected to be handled by standard
error checks such as IS_ERR() and appropriate actions taken by the caller.
-opp_find_freq_exact - Search for an OPP based on an *exact* frequency and
+dev_pm_opp_find_freq_exact - Search for an OPP based on an *exact* frequency and
availability. This function is especially useful to enable an OPP which
is not available by default.
Example: In a case when SoC framework detects a situation where a
higher frequency could be made available, it can use this function to
- find the OPP prior to call the opp_enable to actually make it available.
+ find the OPP prior to call the dev_pm_opp_enable to actually make it available.
rcu_read_lock();
- opp = opp_find_freq_exact(dev, 1000000000, false);
+ opp = dev_pm_opp_find_freq_exact(dev, 1000000000, false);
rcu_read_unlock();
/* dont operate on the pointer.. just do a sanity check.. */
if (IS_ERR(opp)) {
pr_err("frequency not disabled!\n");
/* trigger appropriate actions.. */
} else {
- opp_enable(dev,1000000000);
+ dev_pm_opp_enable(dev,1000000000);
}
NOTE: This is the only search function that operates on OPPs which are
not available.
-opp_find_freq_floor - Search for an available OPP which is *at most* the
+dev_pm_opp_find_freq_floor - Search for an available OPP which is *at most* the
provided frequency. This function is useful while searching for a lesser
match OR operating on OPP information in the order of decreasing
frequency.
Example: To find the highest opp for a device:
freq = ULONG_MAX;
rcu_read_lock();
- opp_find_freq_floor(dev, &freq);
+ dev_pm_opp_find_freq_floor(dev, &freq);
rcu_read_unlock();
-opp_find_freq_ceil - Search for an available OPP which is *at least* the
+dev_pm_opp_find_freq_ceil - Search for an available OPP which is *at least* the
provided frequency. This function is useful while searching for a
higher match OR operating on OPP information in the order of increasing
frequency.
Example 1: To find the lowest opp for a device:
freq = 0;
rcu_read_lock();
- opp_find_freq_ceil(dev, &freq);
+ dev_pm_opp_find_freq_ceil(dev, &freq);
rcu_read_unlock();
Example 2: A simplified implementation of a SoC cpufreq_driver->target:
soc_cpufreq_target(..)
/* Do stuff like policy checks etc. */
/* Find the best frequency match for the req */
rcu_read_lock();
- opp = opp_find_freq_ceil(dev, &freq);
+ opp = dev_pm_opp_find_freq_ceil(dev, &freq);
rcu_read_unlock();
if (!IS_ERR(opp))
soc_switch_to_freq_voltage(freq);
WARNING: Do not use these functions in interrupt context.
-opp_enable - Make a OPP available for operation.
+dev_pm_opp_enable - Make a OPP available for operation.
Example: Lets say that 1GHz OPP is to be made available only if the
SoC temperature is lower than a certain threshold. The SoC framework
implementation might choose to do something as follows:
if (cur_temp < temp_low_thresh) {
/* Enable 1GHz if it was disabled */
rcu_read_lock();
- opp = opp_find_freq_exact(dev, 1000000000, false);
+ opp = dev_pm_opp_find_freq_exact(dev, 1000000000, false);
rcu_read_unlock();
/* just error check */
if (!IS_ERR(opp))
- ret = opp_enable(dev, 1000000000);
+ ret = dev_pm_opp_enable(dev, 1000000000);
else
goto try_something_else;
}
-opp_disable - Make an OPP to be not available for operation
+dev_pm_opp_disable - Make an OPP to be not available for operation
Example: Lets say that 1GHz OPP is to be disabled if the temperature
exceeds a threshold value. The SoC framework implementation might
choose to do something as follows:
if (cur_temp > temp_high_thresh) {
/* Disable 1GHz if it was enabled */
rcu_read_lock();
- opp = opp_find_freq_exact(dev, 1000000000, true);
+ opp = dev_pm_opp_find_freq_exact(dev, 1000000000, true);
rcu_read_unlock();
/* just error check */
if (!IS_ERR(opp))
- ret = opp_disable(dev, 1000000000);
+ ret = dev_pm_opp_disable(dev, 1000000000);
else
goto try_something_else;
}
retrieved using the search functions, the following functions can be used by SoC
framework to retrieve the information represented inside the OPP layer.
-opp_get_voltage - Retrieve the voltage represented by the opp pointer.
+dev_pm_opp_get_voltage - Retrieve the voltage represented by the opp pointer.
Example: At a cpufreq transition to a different frequency, SoC
framework requires to set the voltage represented by the OPP using
the regulator framework to the Power Management chip providing the
{
/* do things */
rcu_read_lock();
- opp = opp_find_freq_ceil(dev, &freq);
- v = opp_get_voltage(opp);
+ opp = dev_pm_opp_find_freq_ceil(dev, &freq);
+ v = dev_pm_opp_get_voltage(opp);
rcu_read_unlock();
if (v)
regulator_set_voltage(.., v);
/* do other things */
}
-opp_get_freq - Retrieve the freq represented by the opp pointer.
+dev_pm_opp_get_freq - Retrieve the freq represented by the opp pointer.
Example: Lets say the SoC framework uses a couple of helper functions
we could pass opp pointers instead of doing additional parameters to
handle quiet a bit of data parameters.
/* do things.. */
max_freq = ULONG_MAX;
rcu_read_lock();
- max_opp = opp_find_freq_floor(dev,&max_freq);
- requested_opp = opp_find_freq_ceil(dev,&freq);
+ max_opp = dev_pm_opp_find_freq_floor(dev,&max_freq);
+ requested_opp = dev_pm_opp_find_freq_ceil(dev,&freq);
if (!IS_ERR(max_opp) && !IS_ERR(requested_opp))
r = soc_test_validity(max_opp, requested_opp);
rcu_read_unlock();
}
soc_test_validity(..)
{
- if(opp_get_voltage(max_opp) < opp_get_voltage(requested_opp))
+ if(dev_pm_opp_get_voltage(max_opp) < dev_pm_opp_get_voltage(requested_opp))
return -EINVAL;
- if(opp_get_freq(max_opp) < opp_get_freq(requested_opp))
+ if(dev_pm_opp_get_freq(max_opp) < dev_pm_opp_get_freq(requested_opp))
return -EINVAL;
/* do things.. */
}
-opp_get_opp_count - Retrieve the number of available opps for a device
+dev_pm_opp_get_opp_count - Retrieve the number of available opps for a device
Example: Lets say a co-processor in the SoC needs to know the available
frequencies in a table, the main processor can notify as following:
soc_notify_coproc_available_frequencies()
{
/* Do things */
rcu_read_lock();
- num_available = opp_get_opp_count(dev);
+ num_available = dev_pm_opp_get_opp_count(dev);
speeds = kzalloc(sizeof(u32) * num_available, GFP_KERNEL);
/* populate the table in increasing order */
freq = 0;
- while (!IS_ERR(opp = opp_find_freq_ceil(dev, &freq))) {
+ while (!IS_ERR(opp = dev_pm_opp_find_freq_ceil(dev, &freq))) {
speeds[i] = freq;
freq++;
i++;
6. Cpufreq Table Generation
===========================
-opp_init_cpufreq_table - cpufreq framework typically is initialized with
+dev_pm_opp_init_cpufreq_table - cpufreq framework typically is initialized with
cpufreq_frequency_table_cpuinfo which is provided with the list of
frequencies that are available for operation. This function provides
a ready to use conversion routine to translate the OPP layer's internal
soc_pm_init()
{
/* Do things */
- r = opp_init_cpufreq_table(dev, &freq_table);
+ r = dev_pm_opp_init_cpufreq_table(dev, &freq_table);
if (!r)
cpufreq_frequency_table_cpuinfo(policy, freq_table);
/* Do other things */
addition to CONFIG_PM as power management feature is required to
dynamically scale voltage and frequency in a system.
-opp_free_cpufreq_table - Free up the table allocated by opp_init_cpufreq_table
+dev_pm_opp_free_cpufreq_table - Free up the table allocated by dev_pm_opp_init_cpufreq_table
7. Data Structures
==================
representing the actual OPPs and domains are internal to the OPP library itself
to allow for suitable abstraction reusable across systems.
-struct opp - The internal data structure of OPP library which is used to
+struct dev_pm_opp - The internal data structure of OPP library which is used to
represent an OPP. In addition to the freq, voltage, availability
information, it also contains internal book keeping information required
for the OPP library to operate on. Pointer to this structure is
provided back to the users such as SoC framework to be used as a
identifier for OPP in the interactions with OPP layer.
- WARNING: The struct opp pointer should not be parsed or modified by the
- users. The defaults of for an instance is populated by opp_add, but the
- availability of the OPP can be modified by opp_enable/disable functions.
+ WARNING: The struct dev_pm_opp pointer should not be parsed or modified by the
+ users. The defaults of for an instance is populated by dev_pm_opp_add, but the
+ availability of the OPP can be modified by dev_pm_opp_enable/disable functions.
struct device - This is used to identify a domain to the OPP layer. The
nature of the device and it's implementation is left to the user of
following:
Initialization / modification:
- +-----+ /- opp_enable
-opp_add --> | opp | <-------
- | +-----+ \- opp_disable
+ +-----+ /- dev_pm_opp_enable
+dev_pm_opp_add --> | opp | <-------
+ | +-----+ \- dev_pm_opp_disable
\-------> domain_info(device)
Search functions:
- /-- opp_find_freq_ceil ---\ +-----+
-domain_info<---- opp_find_freq_exact -----> | opp |
- \-- opp_find_freq_floor ---/ +-----+
+ /-- dev_pm_opp_find_freq_ceil ---\ +-----+
+domain_info<---- dev_pm_opp_find_freq_exact -----> | opp |
+ \-- dev_pm_opp_find_freq_floor ---/ +-----+
Retrieval functions:
-+-----+ /- opp_get_voltage
++-----+ /- dev_pm_opp_get_voltage
| opp | <---
-+-----+ \- opp_get_freq
++-----+ \- dev_pm_opp_get_freq
-domain_info <- opp_get_opp_count
+domain_info <- dev_pm_opp_get_opp_count
--- /dev/null
+Power Capping Framework
+==================================
+
+The power capping framework provides a consistent interface between the kernel
+and the user space that allows power capping drivers to expose the settings to
+user space in a uniform way.
+
+Terminology
+=========================
+The framework exposes power capping devices to user space via sysfs in the
+form of a tree of objects. The objects at the root level of the tree represent
+'control types', which correspond to different methods of power capping. For
+example, the intel-rapl control type represents the Intel "Running Average
+Power Limit" (RAPL) technology, whereas the 'idle-injection' control type
+corresponds to the use of idle injection for controlling power.
+
+Power zones represent different parts of the system, which can be controlled and
+monitored using the power capping method determined by the control type the
+given zone belongs to. They each contain attributes for monitoring power, as
+well as controls represented in the form of power constraints. If the parts of
+the system represented by different power zones are hierarchical (that is, one
+bigger part consists of multiple smaller parts that each have their own power
+controls), those power zones may also be organized in a hierarchy with one
+parent power zone containing multiple subzones and so on to reflect the power
+control topology of the system. In that case, it is possible to apply power
+capping to a set of devices together using the parent power zone and if more
+fine grained control is required, it can be applied through the subzones.
+
+
+Example sysfs interface tree:
+
+/sys/devices/virtual/powercap
+??? intel-rapl
+ ??? intel-rapl:0
+ ?  ??? constraint_0_name
+ ?  ??? constraint_0_power_limit_uw
+ ?  ??? constraint_0_time_window_us
+ ?  ??? constraint_1_name
+ ?  ??? constraint_1_power_limit_uw
+ ?  ??? constraint_1_time_window_us
+ ?  ??? device -> ../../intel-rapl
+ ?  ??? energy_uj
+ ?  ??? intel-rapl:0:0
+ ?  ?  ??? constraint_0_name
+ ?  ?  ??? constraint_0_power_limit_uw
+ ?  ?  ??? constraint_0_time_window_us
+ ?  ?  ??? constraint_1_name
+ ?  ?  ??? constraint_1_power_limit_uw
+ ?  ?  ??? constraint_1_time_window_us
+ ?  ?  ??? device -> ../../intel-rapl:0
+ ?  ?  ??? energy_uj
+ ?  ?  ??? max_energy_range_uj
+ ?  ?  ??? name
+ ?  ?  ??? enabled
+ ?  ?  ??? power
+ ?  ?  ?  ??? async
+ ?  ?  ?  []
+ ?  ?  ??? subsystem -> ../../../../../../class/power_cap
+ ?  ?  ??? uevent
+ ?  ??? intel-rapl:0:1
+ ?  ?  ??? constraint_0_name
+ ?  ?  ??? constraint_0_power_limit_uw
+ ?  ?  ??? constraint_0_time_window_us
+ ?  ?  ??? constraint_1_name
+ ?  ?  ??? constraint_1_power_limit_uw
+ ?  ?  ??? constraint_1_time_window_us
+ ?  ?  ??? device -> ../../intel-rapl:0
+ ?  ?  ??? energy_uj
+ ?  ?  ??? max_energy_range_uj
+ ?  ?  ??? name
+ ?  ?  ??? enabled
+ ?  ?  ??? power
+ ?  ?  ?  ??? async
+ ?  ?  ?  []
+ ?  ?  ??? subsystem -> ../../../../../../class/power_cap
+ ?  ?  ??? uevent
+ ?  ??? max_energy_range_uj
+ ?  ??? max_power_range_uw
+ ?  ??? name
+ ?  ??? enabled
+ ?  ??? power
+ ?  ?  ??? async
+ ?  ?  []
+ ?  ??? subsystem -> ../../../../../class/power_cap
+ ?  ??? enabled
+ ?  ??? uevent
+ ??? intel-rapl:1
+ ?  ??? constraint_0_name
+ ?  ??? constraint_0_power_limit_uw
+ ?  ??? constraint_0_time_window_us
+ ?  ??? constraint_1_name
+ ?  ??? constraint_1_power_limit_uw
+ ?  ??? constraint_1_time_window_us
+ ?  ??? device -> ../../intel-rapl
+ ?  ??? energy_uj
+ ?  ??? intel-rapl:1:0
+ ?  ?  ??? constraint_0_name
+ ?  ?  ??? constraint_0_power_limit_uw
+ ?  ?  ??? constraint_0_time_window_us
+ ?  ?  ??? constraint_1_name
+ ?  ?  ??? constraint_1_power_limit_uw
+ ?  ?  ??? constraint_1_time_window_us
+ ?  ?  ??? device -> ../../intel-rapl:1
+ ?  ?  ??? energy_uj
+ ?  ?  ??? max_energy_range_uj
+ ?  ?  ??? name
+ ?  ?  ??? enabled
+ ?  ?  ??? power
+ ?  ?  ?  ??? async
+ ?  ?  ?  []
+ ?  ?  ??? subsystem -> ../../../../../../class/power_cap
+ ?  ?  ??? uevent
+ ?  ??? intel-rapl:1:1
+ ?  ?  ??? constraint_0_name
+ ?  ?  ??? constraint_0_power_limit_uw
+ ?  ?  ??? constraint_0_time_window_us
+ ?  ?  ??? constraint_1_name
+ ?  ?  ??? constraint_1_power_limit_uw
+ ?  ?  ??? constraint_1_time_window_us
+ ?  ?  ??? device -> ../../intel-rapl:1
+ ?  ?  ??? energy_uj
+ ?  ?  ??? max_energy_range_uj
+ ?  ?  ??? name
+ ?  ?  ??? enabled
+ ?  ?  ??? power
+ ?  ?  ?  ??? async
+ ?  ?  ?  []
+ ?  ?  ??? subsystem -> ../../../../../../class/power_cap
+ ?  ?  ??? uevent
+ ?  ??? max_energy_range_uj
+ ?  ??? max_power_range_uw
+ ?  ??? name
+ ?  ??? enabled
+ ?  ??? power
+ ?  ?  ??? async
+ ?  ?  []
+ ?  ??? subsystem -> ../../../../../class/power_cap
+ ?  ??? uevent
+ ??? power
+ ?  ??? async
+ ?  []
+ ??? subsystem -> ../../../../class/power_cap
+ ??? enabled
+ ??? uevent
+
+The above example illustrates a case in which the Intel RAPL technology,
+available in Intel® IA-64 and IA-32 Processor Architectures, is used. There is one
+control type called intel-rapl which contains two power zones, intel-rapl:0 and
+intel-rapl:1, representing CPU packages. Each of these power zones contains
+two subzones, intel-rapl:j:0 and intel-rapl:j:1 (j = 0, 1), representing the
+"core" and the "uncore" parts of the given CPU package, respectively. All of
+the zones and subzones contain energy monitoring attributes (energy_uj,
+max_energy_range_uj) and constraint attributes (constraint_*) allowing controls
+to be applied (the constraints in the 'package' power zones apply to the whole
+CPU packages and the subzone constraints only apply to the respective parts of
+the given package individually). Since Intel RAPL doesn't provide instantaneous
+power value, there is no power_uw attribute.
+
+In addition to that, each power zone contains a name attribute, allowing the
+part of the system represented by that zone to be identified.
+For example:
+
+cat /sys/class/power_cap/intel-rapl/intel-rapl:0/name
+package-0
+
+The Intel RAPL technology allows two constraints, short term and long term,
+with two different time windows to be applied to each power zone. Thus for
+each zone there are 2 attributes representing the constraint names, 2 power
+limits and 2 attributes representing the sizes of the time windows. Such that,
+constraint_j_* attributes correspond to the jth constraint (j = 0,1).
+
+For example:
+ constraint_0_name
+ constraint_0_power_limit_uw
+ constraint_0_time_window_us
+ constraint_1_name
+ constraint_1_power_limit_uw
+ constraint_1_time_window_us
+
+Power Zone Attributes
+=================================
+Monitoring attributes
+----------------------
+
+energy_uj (rw): Current energy counter in micro joules. Write "0" to reset.
+If the counter can not be reset, then this attribute is read only.
+
+max_energy_range_uj (ro): Range of the above energy counter in micro-joules.
+
+power_uw (ro): Current power in micro watts.
+
+max_power_range_uw (ro): Range of the above power value in micro-watts.
+
+name (ro): Name of this power zone.
+
+It is possible that some domains have both power ranges and energy counter ranges;
+however, only one is mandatory.
+
+Constraints
+----------------
+constraint_X_power_limit_uw (rw): Power limit in micro watts, which should be
+applicable for the time window specified by "constraint_X_time_window_us".
+
+constraint_X_time_window_us (rw): Time window in micro seconds.
+
+constraint_X_name (ro): An optional name of the constraint
+
+constraint_X_max_power_uw(ro): Maximum allowed power in micro watts.
+
+constraint_X_min_power_uw(ro): Minimum allowed power in micro watts.
+
+constraint_X_max_time_window_us(ro): Maximum allowed time window in micro seconds.
+
+constraint_X_min_time_window_us(ro): Minimum allowed time window in micro seconds.
+
+Except power_limit_uw and time_window_us other fields are optional.
+
+Common zone and control type attributes
+----------------------------------------
+enabled (rw): Enable/Disable controls at zone level or for all zones using
+a control type.
+
+Power Cap Client Driver Interface
+==================================
+The API summary:
+
+Call powercap_register_control_type() to register control type object.
+Call powercap_register_zone() to register a power zone (under a given
+control type), either as a top-level power zone or as a subzone of another
+power zone registered earlier.
+The number of constraints in a power zone and the corresponding callbacks have
+to be defined prior to calling powercap_register_zone() to register that zone.
+
+To Free a power zone call powercap_unregister_zone().
+To free a control type object call powercap_unregister_control_type().
+Detailed API can be generated using kernel-doc on include/linux/powercap.h.
if the device can be suspended (i.e. if all of the conditions necessary for
suspending the device are satisfied) and to queue up a suspend request for the
device in that case. If there is no idle callback, or if the callback returns
-0, then the PM core will attempt to carry out a runtime suspend of the device;
-in essence, it will call pm_runtime_suspend() directly. To prevent this (for
-example, if the callback routine has started a delayed suspend), the routine
-should return a non-zero value. Negative error return codes are ignored by the
-PM core.
+0, then the PM core will attempt to carry out a runtime suspend of the device,
+also respecting devices configured for autosuspend. In essence this means a
+call to pm_runtime_autosuspend() (do note that drivers needs to update the
+device last busy mark, pm_runtime_mark_last_busy(), to control the delay under
+this circumstance). To prevent this (for example, if the callback routine has
+started a delayed suspend), the routine must return a non-zero value. Negative
+error return codes are ignored by the PM core.
The helper functions provided by the PM core, described in Section 4, guarantee
that the following constraints are met with respect to runtime PM callbacks for
- execute the subsystem-level idle callback for the device; returns an
error code on failure, where -EINPROGRESS means that ->runtime_idle() is
already being executed; if there is no callback or the callback returns 0
- then run pm_runtime_suspend(dev) and return its result
+ then run pm_runtime_autosuspend(dev) and return its result
int pm_runtime_suspend(struct device *dev);
- execute the subsystem-level suspend callback for the device; returns 0 on
alc269-dmic Enable ALC269(VA) digital mic workaround
alc271-dmic Enable ALC271X digital mic workaround
inv-dmic Inverted internal mic workaround
+ headset-mic Indicates a combined headset (headphone+mic) jack
lenovo-dock Enables docking station I/O for some Lenovos
dell-headset-multi Headset jack, which can also be used as mic-in
dell-headset-dock Headset jack (without mic-in), and also dock I/O
imac27 IMac 27 Inch
auto BIOS setup (default)
+Cirrus Logic CS4208
+===================
+ mba6 MacBook Air 6,1 and 6,2
+ gpio0 Enable GPIO 0 amp
+ auto BIOS setup (default)
+
VIA VT17xx/VT18xx/VT20xx
========================
auto BIOS setup (default)
ACPI
M: Len Brown <lenb@kernel.org>
-M: Rafael J. Wysocki <rjw@sisk.pl>
+M: Rafael J. Wysocki <rjw@rjwysocki.net>
L: linux-acpi@vger.kernel.org
-W: http://www.lesswatts.org/projects/acpi/
-Q: http://patchwork.kernel.org/project/linux-acpi/list/
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
+W: https://01.org/linux-acpi
+Q: https://patchwork.kernel.org/project/linux-acpi/list/
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
S: Supported
F: drivers/acpi/
F: drivers/pnp/pnpacpi/
F: drivers/pci/*/*acpi*
F: drivers/pci/*/*/*acpi*
+ACPI COMPONENT ARCHITECTURE (ACPICA)
+M: Robert Moore <robert.moore@intel.com>
+M: Lv Zheng <lv.zheng@intel.com>
+M: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+L: linux-acpi@vger.kernel.org
+L: devel@acpica.org
+W: https://acpica.org/
+W: https://github.com/acpica/acpica/
+Q: https://patchwork.kernel.org/project/linux-acpi/list/
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
+S: Supported
+F: drivers/acpi/acpica/
+F: include/acpi/
+
ACPI FAN DRIVER
M: Zhang Rui <rui.zhang@intel.com>
L: linux-acpi@vger.kernel.org
-W: http://www.lesswatts.org/projects/acpi/
+W: https://01.org/linux-acpi
S: Supported
F: drivers/acpi/fan.c
ACPI THERMAL DRIVER
M: Zhang Rui <rui.zhang@intel.com>
L: linux-acpi@vger.kernel.org
-W: http://www.lesswatts.org/projects/acpi/
+W: https://01.org/linux-acpi
S: Supported
F: drivers/acpi/*thermal*
ACPI VIDEO DRIVER
M: Zhang Rui <rui.zhang@intel.com>
L: linux-acpi@vger.kernel.org
-W: http://www.lesswatts.org/projects/acpi/
+W: https://01.org/linux-acpi
S: Supported
F: drivers/acpi/video.c
F: arch/arm/mach-gemini/
ARM/CSR SIRFPRIMA2 MACHINE SUPPORT
-M: Barry Song <baohua.song@csr.com>
+M: Barry Song <baohua@kernel.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
T: git git://git.kernel.org/pub/scm/linux/kernel/git/baohua/linux.git
S: Maintained
F: arch/arm/mach-prima2/
+F: drivers/clk/clk-prima2.c
+F: drivers/clocksource/timer-prima2.c
+F: drivers/clocksource/timer-marco.c
F: drivers/dma/sirf-dma.c
F: drivers/i2c/busses/i2c-sirf.c
+F: drivers/input/misc/sirfsoc-onkey.c
+F: drivers/irqchip/irq-sirfsoc.c
F: drivers/mmc/host/sdhci-sirf.c
F: drivers/pinctrl/sirf/
+F: drivers/rtc/rtc-sirfsoc.c
F: drivers/spi/spi-sirf.c
ARM/EBSA110 MACHINE SUPPORT
M: Jason Cooper <jason@lakedaemon.net>
M: Andrew Lunn <andrew@lunn.ch>
M: Gregory Clement <gregory.clement@free-electrons.com>
+M: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: arch/arm/mach-mvebu/
ARM/Marvell Dove/Kirkwood/MV78xx0/Orion SOC support
M: Jason Cooper <jason@lakedaemon.net>
M: Andrew Lunn <andrew@lunn.ch>
+M: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: arch/arm/mach-dove/
F: drivers/net/ethernet/seeq/ether3*
F: drivers/scsi/arm/
+ARM/Rockchip SoC support
+M: Heiko Stuebner <heiko@sntech.de>
+L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S: Maintained
+F: arch/arm/mach-rockchip/
+F: drivers/*/*rockchip*
+
ARM/SHARK MACHINE SUPPORT
M: Alexander Schulz <alex@shark-linux.de>
W: http://www.shark-linux.de/shark.html
BONDING DRIVER
M: Jay Vosburgh <fubar@us.ibm.com>
+M: Veaceslav Falico <vfalico@redhat.com>
M: Andy Gospodarek <andy@greyhouse.net>
L: netdev@vger.kernel.org
W: http://sourceforge.net/projects/bonding/
F: drivers/net/ethernet/broadcom/bnx2x/
BROADCOM BCM281XX/BCM11XXX ARM ARCHITECTURE
-M: Christian Daudt <csd@broadcom.com>
+M: Christian Daudt <bcm@fixthebug.org>
+L: bcm-kernel-feedback-list@broadcom.com
T: git git://git.github.com/broadcom/bcm11351
S: Maintained
F: arch/arm/mach-bcm/
F: drivers/net/ethernet/ti/cpmac.c
CPU FREQUENCY DRIVERS
-M: Rafael J. Wysocki <rjw@sisk.pl>
+M: Rafael J. Wysocki <rjw@rjwysocki.net>
M: Viresh Kumar <viresh.kumar@linaro.org>
L: cpufreq@vger.kernel.org
L: linux-pm@vger.kernel.org
F: drivers/cpuidle/cpuidle-big_little.c
CPUIDLE DRIVERS
-M: Rafael J. Wysocki <rjw@sisk.pl>
+M: Rafael J. Wysocki <rjw@rjwysocki.net>
M: Daniel Lezcano <daniel.lezcano@linaro.org>
L: linux-pm@vger.kernel.org
S: Maintained
F: include/linux/dm-*.h
F: include/uapi/linux/dm-*.h
+DIGI NEO AND CLASSIC PCI PRODUCTS
+M: Lidza Louina <lidza.louina@gmail.com>
+L: driverdev-devel@linuxdriverproject.org
+S: Maintained
+F: drivers/staging/dgnc/
+
+DIGI EPCA PCI PRODUCTS
+M: Lidza Louina <lidza.louina@gmail.com>
+L: driverdev-devel@linuxdriverproject.org
+S: Maintained
+F: drivers/staging/dgap/
+
DIOLAN U2C-12 I2C DRIVER
M: Guenter Roeck <linux@roeck-us.net>
L: linux-i2c@vger.kernel.org
DMA GENERIC OFFLOAD ENGINE SUBSYSTEM
M: Vinod Koul <vinod.koul@intel.com>
M: Dan Williams <dan.j.williams@intel.com>
+L: dmaengine@vger.kernel.org
+Q: https://patchwork.kernel.org/project/linux-dmaengine/list/
S: Supported
F: drivers/dma/
F: include/linux/dma*
L: dri-devel@lists.freedesktop.org
L: linux-tegra@vger.kernel.org
T: git git://anongit.freedesktop.org/tegra/linux.git
-S: Maintained
+S: Supported
F: drivers/gpu/host1x/
F: include/uapi/drm/tegra_drm.h
F: Documentation/devicetree/bindings/gpu/nvidia,tegra20-host1x.txt
FREEZER
M: Pavel Machek <pavel@ucw.cz>
-M: "Rafael J. Wysocki" <rjw@sisk.pl>
+M: "Rafael J. Wysocki" <rjw@rjwysocki.net>
L: linux-pm@vger.kernel.org
S: Supported
F: Documentation/power/freezing-of-tasks.txt
S: Odd Fixes (e.g., new signatures)
F: drivers/scsi/fdomain.*
+GCOV BASED KERNEL PROFILING
+M: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
+S: Maintained
+F: kernel/gcov/
+F: Documentation/gcov.txt
+
GDT SCSI DISK ARRAY CONTROLLER DRIVER
M: Achim Leubner <achim_leubner@adaptec.com>
L: linux-scsi@vger.kernel.org
HIBERNATION (aka Software Suspend, aka swsusp)
M: Pavel Machek <pavel@ucw.cz>
-M: "Rafael J. Wysocki" <rjw@sisk.pl>
+M: "Rafael J. Wysocki" <rjw@rjwysocki.net>
L: linux-pm@vger.kernel.org
S: Supported
F: arch/x86/power/
INTEL MENLOW THERMAL DRIVER
M: Sujith Thomas <sujith.thomas@intel.com>
L: platform-driver-x86@vger.kernel.org
-W: http://www.lesswatts.org/projects/acpi/
+W: https://01.org/linux-acpi
S: Supported
F: drivers/platform/x86/intel_menlow.c
INTEL I/OAT DMA DRIVER
M: Dan Williams <dan.j.williams@intel.com>
-S: Maintained
+M: Dave Jiang <dave.jiang@intel.com>
+L: dmaengine@vger.kernel.org
+Q: https://patchwork.kernel.org/project/linux-dmaengine/list/
+S: Supported
F: drivers/dma/ioat*
INTEL IOMMU (VT-d)
S: Maintained
F: drivers/tty/serial/ioc3_serial.c
+IOMMU DRIVERS
+M: Joerg Roedel <joro@8bytes.org>
+L: iommu@lists.linux-foundation.org
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git
+S: Maintained
+F: drivers/iommu/
+
IP MASQUERADING
M: Juanjo Ciarlante <jjciarla@raiz.uncu.edu.ar>
S: Maintained
F: drivers/net/wireless/prism54/
PROMISE SATA TX2/TX4 CONTROLLER LIBATA DRIVER
-M: Mikael Pettersson <mikpe@it.uu.se>
+M: Mikael Pettersson <mikpelinux@gmail.com>
L: linux-ide@vger.kernel.org
S: Maintained
F: drivers/ata/sata_promise.*
F: include/uapi/linux/sched.h
SCORE ARCHITECTURE
-M: Chen Liqin <liqin.chen@sunplusct.com>
+M: Chen Liqin <liqin.linux@gmail.com>
M: Lennox Wu <lennox.wu@gmail.com>
-W: http://www.sunplusct.com
+W: http://www.sunplus.com
S: Supported
F: arch/score/
F: sound/soc/
F: include/sound/soc*
+SOUND - DMAENGINE HELPERS
+M: Lars-Peter Clausen <lars@metafoo.de>
+S: Supported
+F: include/sound/dmaengine_pcm.h
+F: sound/core/pcm_dmaengine.c
+F: sound/soc/soc-generic-dmaengine-pcm.c
+
SPARC + UltraSPARC (sparc/sparc64)
M: "David S. Miller" <davem@davemloft.net>
L: sparclinux@vger.kernel.org
SUSPEND TO RAM
M: Len Brown <len.brown@intel.com>
M: Pavel Machek <pavel@ucw.cz>
-M: "Rafael J. Wysocki" <rjw@sisk.pl>
+M: "Rafael J. Wysocki" <rjw@rjwysocki.net>
L: linux-pm@vger.kernel.org
S: Supported
F: Documentation/power/
S: Maintained
F: drivers/media/rc/ttusbir.c
-TEGRA SUPPORT
+TEGRA ARCHITECTURE SUPPORT
M: Stephen Warren <swarren@wwwdotorg.org>
+M: Thierry Reding <thierry.reding@gmail.com>
L: linux-tegra@vger.kernel.org
Q: http://patchwork.ozlabs.org/project/linux-tegra/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra.git
S: Supported
N: [^a-z]tegra
+TEGRA ASOC DRIVER
+M: Stephen Warren <swarren@wwwdotorg.org>
+S: Supported
+F: sound/soc/tegra/
+
+TEGRA CLOCK DRIVER
+M: Peter De Schrijver <pdeschrijver@nvidia.com>
+M: Prashant Gaikwad <pgaikwad@nvidia.com>
+S: Supported
+F: drivers/clk/tegra/
+
+TEGRA DMA DRIVER
+M: Laxman Dewangan <ldewangan@nvidia.com>
+S: Supported
+F: drivers/dma/tegra20-apb-dma.c
+
+TEGRA GPIO DRIVER
+M: Stephen Warren <swarren@wwwdotorg.org>
+S: Supported
+F: drivers/gpio/gpio-tegra.c
+
+TEGRA I2C DRIVER
+M: Laxman Dewangan <ldewangan@nvidia.com>
+S: Supported
+F: drivers/i2c/busses/i2c-tegra.c
+
+TEGRA IOMMU DRIVERS
+M: Hiroshi Doyu <hdoyu@nvidia.com>
+S: Supported
+F: drivers/iommu/tegra*
+
+TEGRA KBC DRIVER
+M: Rakesh Iyer <riyer@nvidia.com>
+M: Laxman Dewangan <ldewangan@nvidia.com>
+S: Supported
+F: drivers/input/keyboard/tegra-kbc.c
+
+TEGRA PINCTRL DRIVER
+M: Stephen Warren <swarren@wwwdotorg.org>
+S: Supported
+F: drivers/pinctrl/pinctrl-tegra*
+
+TEGRA PWM DRIVER
+M: Thierry Reding <thierry.reding@gmail.com>
+S: Supported
+F: drivers/pwm/pwm-tegra.c
+
+TEGRA SERIAL DRIVER
+M: Laxman Dewangan <ldewangan@nvidia.com>
+S: Supported
+F: drivers/tty/serial/serial-tegra.c
+
+TEGRA SPI DRIVER
+M: Laxman Dewangan <ldewangan@nvidia.com>
+S: Supported
+F: drivers/spi/spi-tegra*
+
TEHUTI ETHERNET DRIVER
M: Andy Gospodarek <andy@greyhouse.net>
L: netdev@vger.kernel.org
F: drivers/hid/usbhid/
USB/IP DRIVERS
-M: Matt Mooney <mfm@muteddisk.com>
L: linux-usb@vger.kernel.org
-S: Maintained
+S: Orphan
F: drivers/staging/usbip/
USB ISP116X DRIVER
XEN NETWORK BACKEND DRIVER
M: Ian Campbell <ian.campbell@citrix.com>
+M: Wei Liu <wei.liu2@citrix.com>
L: xen-devel@lists.xenproject.org (moderated for non-subscribers)
L: netdev@vger.kernel.org
S: Supported
VERSION = 3
PATCHLEVEL = 12
SUBLEVEL = 0
-EXTRAVERSION = -rc2
+EXTRAVERSION = -rc7
NAME = One Giant Leap for Frogkind
# *DOCUMENTATION*
config HAVE_ARCH_JUMP_LABEL
bool
-config HAVE_ARCH_MUTEX_CPU_RELAX
- bool
-
config HAVE_RCU_TABLE_FREE
bool
static inline void arch_spin_unlock(arch_spinlock_t *lock)
{
- lock->slock = __ARCH_SPIN_LOCK_UNLOCKED__;
+ unsigned int tmp = __ARCH_SPIN_LOCK_UNLOCKED__;
+
+ __asm__ __volatile__(
+ " ex %0, [%1] \n"
+ : "+r" (tmp)
+ : "r"(&(lock->slock))
+ : "memory");
+
smp_mb();
}
* Because it essentially checks if buffer end is within limit and @len is
* non-ngeative, which implies that buffer start will be within limit too.
*
- * The reason for rewriting being, for majorit yof cases, @len is generally
+ * The reason for rewriting being, for majority of cases, @len is generally
* compile time constant, causing first sub-expression to be compile time
* subsumed.
*
*
*/
#define __user_ok(addr, sz) (((sz) <= TASK_SIZE) && \
- (((addr)+(sz)) <= get_fs()))
+ ((addr) <= (get_fs() - (sz))))
#define __access_ok(addr, sz) (unlikely(__kernel_ok) || \
likely(__user_ok((addr), (sz))))
REG_IGNORE_ONE(pad2);
REG_IN_CHUNK(callee, efa, cregs); /* callee_regs[r25..r13] */
REG_IGNORE_ONE(efa); /* efa update invalid */
- REG_IN_ONE(stop_pc, &ptregs->ret); /* stop_pc: PC update */
+ REG_IGNORE_ONE(stop_pc); /* PC updated via @ret */
return ret;
}
{
struct rt_sigframe __user *sf;
unsigned int magic;
- int err;
struct pt_regs *regs = current_pt_regs();
/* Always make any pending restarted system calls return -EINTR */
if (!access_ok(VERIFY_READ, sf, sizeof(*sf)))
goto badframe;
- err = restore_usr_regs(regs, sf);
- err |= __get_user(magic, &sf->sigret_magic);
- if (err)
+ if (__get_user(magic, &sf->sigret_magic))
goto badframe;
if (unlikely(is_do_ss_needed(magic)))
if (restore_altstack(&sf->uc.uc_stack))
goto badframe;
+ if (restore_usr_regs(regs, sf))
+ goto badframe;
+
/* Don't restart from sigreturn */
syscall_wont_restart(regs);
if (!sf)
return 1;
+ /*
+ * w/o SA_SIGINFO, struct ucontext is partially populated (only
+ * uc_mcontext/uc_sigmask) for kernel's normal user state preservation
+ * during signal handler execution. This works for SA_SIGINFO as well
+ * although the semantics are now overloaded (the same reg state can be
+ * inspected by userland: but are they allowed to fiddle with it ?
+ */
+ err |= stash_usr_regs(sf, regs, set);
+
/*
* SA_SIGINFO requires 3 args to signal handler:
* #1: sig-no (common to any handler)
magic = MAGIC_SIGALTSTK;
}
- /*
- * w/o SA_SIGINFO, struct ucontext is partially populated (only
- * uc_mcontext/uc_sigmask) for kernel's normal user state preservation
- * during signal handler execution. This works for SA_SIGINFO as well
- * although the semantics are now overloaded (the same reg state can be
- * inspected by userland: but are they allowed to fiddle with it ?
- */
- err |= stash_usr_regs(sf, regs, set);
err |= __put_user(magic, &sf->sigret_magic);
if (err)
return err;
{
struct clock_event_device *clk = &per_cpu(arc_clockevent_device, cpu);
- clockevents_calc_mult_shift(clk, arc_get_core_freq(), 5);
-
- clk->max_delta_ns = clockevent_delta2ns(ARC_TIMER_MAX, clk);
clk->cpumask = cpumask_of(cpu);
-
- clockevents_register_device(clk);
+ clockevents_config_and_register(clk, arc_get_core_freq(),
+ 0, ARC_TIMER_MAX);
/*
* setup the per-cpu timer IRQ handler - for all cpus
regs->status32 &= ~STATUS_DE_MASK;
} else {
regs->ret += state.instr_len;
+
+ /* handle zero-overhead-loop */
+ if ((regs->ret == regs->lp_end) && (regs->lp_count)) {
+ regs->ret = regs->lp_start;
+ regs->lp_count--;
+ }
}
return 0;
config KERNEL_MODE_NEON
bool "Support for NEON in kernel mode"
- default n
- depends on NEON
+ depends on NEON && AEABI
help
Say Y to include support for NEON in kernel mode.
# Convert bzImage to zImage
bzImage: zImage
-zImage Image xipImage bootpImage uImage: vmlinux
+BOOT_TARGETS = zImage Image xipImage bootpImage uImage
+INSTALL_TARGETS = zinstall uinstall install
+
+PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS)
+
+$(BOOT_TARGETS): vmlinux
$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
-zinstall uinstall install: vmlinux
+$(INSTALL_TARGETS):
$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
%.dtb: | scripts
@test "$(INITRD)" != "" || \
(echo You must specify INITRD; exit -1)
-install: $(obj)/Image
- $(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
+install:
+ $(CONFIG_SHELL) $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" \
$(obj)/Image System.map "$(INSTALL_PATH)"
-zinstall: $(obj)/zImage
- $(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
+zinstall:
+ $(CONFIG_SHELL) $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" \
$(obj)/zImage System.map "$(INSTALL_PATH)"
-uinstall: $(obj)/uImage
- $(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
+uinstall:
+ $(CONFIG_SHELL) $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" \
$(obj)/uImage System.map "$(INSTALL_PATH)"
zi:
- $(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
+ $(CONFIG_SHELL) $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" \
$(obj)/zImage System.map "$(INSTALL_PATH)"
i:
- $(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
+ $(CONFIG_SHELL) $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" \
$(obj)/Image System.map "$(INSTALL_PATH)"
subdir- := bootp compressed dts
dtb-$(CONFIG_ARCH_AT91) += sama5d34ek.dtb
dtb-$(CONFIG_ARCH_AT91) += sama5d35ek.dtb
+dtb-$(CONFIG_ARCH_ATLAS6) += atlas6-evb.dtb
+
dtb-$(CONFIG_ARCH_BCM2835) += bcm2835-rpi-b.dtb
dtb-$(CONFIG_ARCH_BCM) += bcm11351-brt.dtb \
bcm28155-ap.dtb
};
soc {
+ ranges = <MBUS_ID(0xf0, 0x01) 0 0xd0000000 0x100000
+ MBUS_ID(0x01, 0xe0) 0 0xfff00000 0x100000>;
+
+ pcie-controller {
+ status = "okay";
+
+ /* Connected to Marvell SATA controller */
+ pcie@1,0 {
+ /* Port 0, Lane 0 */
+ status = "okay";
+ };
+
+ /* Connected to FL1009 USB 3.0 controller */
+ pcie@2,0 {
+ /* Port 1, Lane 0 */
+ status = "okay";
+ };
+ };
+
internal-regs {
serial@12000 {
clock-frequency = <200000000>;
marvell,pins = "mpp56";
marvell,function = "gpio";
};
+
+ poweroff: poweroff {
+ marvell,pins = "mpp8";
+ marvell,function = "gpio";
+ };
};
mdio {
pwm_polarity = <0>;
};
};
-
- pcie-controller {
- status = "okay";
-
- /* Connected to Marvell SATA controller */
- pcie@1,0 {
- /* Port 0, Lane 0 */
- status = "okay";
- };
-
- /* Connected to FL1009 USB 3.0 controller */
- pcie@2,0 {
- /* Port 1, Lane 0 */
- status = "okay";
- };
- };
};
};
button@1 {
label = "Power Button";
linux,code = <116>; /* KEY_POWER */
- gpios = <&gpio1 30 1>;
+ gpios = <&gpio1 30 0>;
};
button@2 {
};
};
+ gpio_poweroff {
+ compatible = "gpio-poweroff";
+ pinctrl-0 = <&poweroff>;
+ pinctrl-names = "default";
+ gpios = <&gpio0 8 1>;
+ };
+
};
timer@20300 {
compatible = "marvell,armada-xp-timer";
+ clocks = <&coreclk 2>, <&refclk>;
+ clock-names = "nbclk", "fixed";
};
coreclk: mvebu-sar@18230 {
};
};
};
+
+ clocks {
+ /* 25 MHz reference crystal */
+ refclk: oscillator {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <25000000>;
+ };
+ };
};
AT91_PIOA 8 AT91_PERIPH_A AT91_PINCTRL_NONE>; /* PA8 periph A */
};
- pinctrl_uart2_rts: uart2_rts-0 {
+ pinctrl_usart2_rts: usart2_rts-0 {
atmel,pins =
<AT91_PIOB 0 AT91_PERIPH_B AT91_PINCTRL_NONE>; /* PB0 periph B */
};
- pinctrl_uart2_cts: uart2_cts-0 {
+ pinctrl_usart2_cts: usart2_cts-0 {
atmel,pins =
<AT91_PIOB 1 AT91_PERIPH_B AT91_PINCTRL_NONE>; /* PB1 periph B */
};
interrupts = <12 IRQ_TYPE_LEVEL_HIGH 0>;
dmas = <&dma0 1 AT91_DMA_CFG_PER_ID(0)>;
dma-names = "rxtx";
+ pinctrl-names = "default";
#address-cells = <1>;
#size-cells = <0>;
status = "disabled";
interrupts = <26 IRQ_TYPE_LEVEL_HIGH 0>;
dmas = <&dma1 1 AT91_DMA_CFG_PER_ID(0)>;
dma-names = "rxtx";
+ pinctrl-names = "default";
#address-cells = <1>;
#size-cells = <0>;
status = "disabled";
interrupts = <17>;
fifosize = <128>;
clocks = <&clks 13>;
+ sirf,uart-dma-rx-channel = <21>;
+ sirf,uart-dma-tx-channel = <2>;
};
uart1: uart@b0060000 {
interrupts = <19>;
fifosize = <128>;
clocks = <&clks 15>;
+ sirf,uart-dma-rx-channel = <6>;
+ sirf,uart-dma-tx-channel = <7>;
};
usp0: usp@b0080000 {
compatible = "sirf,prima2-usp";
reg = <0xb0080000 0x10000>;
interrupts = <20>;
+ fifosize = <128>;
clocks = <&clks 28>;
+ sirf,usp-dma-rx-channel = <17>;
+ sirf,usp-dma-tx-channel = <18>;
};
usp1: usp@b0090000 {
compatible = "sirf,prima2-usp";
reg = <0xb0090000 0x10000>;
interrupts = <21>;
+ fifosize = <128>;
clocks = <&clks 29>;
+ sirf,usp-dma-rx-channel = <14>;
+ sirf,usp-dma-tx-channel = <15>;
};
dmac0: dma-controller@b00b0000 {
compatible = "sirf,prima2-vip";
reg = <0xb00C0000 0x10000>;
clocks = <&clks 31>;
+ interrupts = <14>;
+ sirf,vip-dma-rx-channel = <16>;
};
spi0: spi@b00d0000 {
<1 14 0xf08>,
<1 11 0xf08>,
<1 10 0xf08>;
+ /* Unfortunately we need this since some versions of U-Boot
+ * on Exynos don't set the CNTFRQ register, so we need the
+ * value from DT.
+ */
+ clock-frequency = <24000000>;
};
mct@101C0000 {
model = "ARM Integrator/CP";
compatible = "arm,integrator-cp";
- aliases {
- arm,timer-primary = &timer2;
- arm,timer-secondary = &timer1;
- };
-
chosen {
bootargs = "root=/dev/ram0 console=ttyAMA0,38400n8 earlyprintk";
};
};
timer0: timer@13000000 {
+ /* TIMER0 runs @ 25MHz */
compatible = "arm,integrator-cp-timer";
+ status = "disabled";
};
timer1: timer@13000100 {
+ /* TIMER1 runs @ 1MHz */
compatible = "arm,integrator-cp-timer";
};
timer2: timer@13000200 {
+ /* TIMER2 runs @ 1MHz */
compatible = "arm,integrator-cp-timer";
};
cpu@0 {
device_type = "cpu";
compatible = "marvell,feroceon";
+ reg = <0>;
clocks = <&core_clk 1>, <&core_clk 3>, <&gate_clk 11>;
clock-names = "cpu_clk", "ddrclk", "powersave";
};
xor@60900 {
compatible = "marvell,orion-xor";
reg = <0x60900 0x100
- 0xd0B00 0x100>;
+ 0x60B00 0x100>;
status = "okay";
clocks = <&gate_clk 16>;
/ {
model = "TI OMAP3 BeagleBoard xM";
- compatible = "ti,omap3-beagle-xm", "ti,omap3-beagle", "ti,omap3";
+ compatible = "ti,omap3-beagle-xm", "ti,omap36xx", "ti,omap3";
cpus {
cpu@0 {
#address-cells = <1>;
#size-cells = <0>;
pinctrl-single,register-width = <16>;
- pinctrl-single,function-mask = <0x7f1f>;
+ pinctrl-single,function-mask = <0xff1f>;
};
omap3_pmx_wkup: pinmux@0x48002a00 {
#address-cells = <1>;
#size-cells = <0>;
pinctrl-single,register-width = <16>;
- pinctrl-single,function-mask = <0x7f1f>;
+ pinctrl-single,function-mask = <0xff1f>;
};
gpio1: gpio@48310000 {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
- ranges = <0xb0000000 0xb0000000 0x180000>;
+ ranges = <0xb0000000 0xb0000000 0x180000>,
+ <0x56000000 0x56000000 0x1b00000>;
timer@b0020000 {
compatible = "sirf,prima2-tick";
uart0: uart@b0050000 {
cell-index = <0>;
compatible = "sirf,prima2-uart";
- reg = <0xb0050000 0x10000>;
+ reg = <0xb0050000 0x1000>;
interrupts = <17>;
+ fifosize = <128>;
clocks = <&clks 13>;
+ sirf,uart-dma-rx-channel = <21>;
+ sirf,uart-dma-tx-channel = <2>;
};
uart1: uart@b0060000 {
cell-index = <1>;
compatible = "sirf,prima2-uart";
- reg = <0xb0060000 0x10000>;
+ reg = <0xb0060000 0x1000>;
interrupts = <18>;
+ fifosize = <32>;
clocks = <&clks 14>;
};
uart2: uart@b0070000 {
cell-index = <2>;
compatible = "sirf,prima2-uart";
- reg = <0xb0070000 0x10000>;
+ reg = <0xb0070000 0x1000>;
interrupts = <19>;
+ fifosize = <128>;
clocks = <&clks 15>;
+ sirf,uart-dma-rx-channel = <6>;
+ sirf,uart-dma-tx-channel = <7>;
};
usp0: usp@b0080000 {
compatible = "sirf,prima2-usp";
reg = <0xb0080000 0x10000>;
interrupts = <20>;
+ fifosize = <128>;
clocks = <&clks 28>;
+ sirf,usp-dma-rx-channel = <17>;
+ sirf,usp-dma-tx-channel = <18>;
};
usp1: usp@b0090000 {
compatible = "sirf,prima2-usp";
reg = <0xb0090000 0x10000>;
interrupts = <21>;
+ fifosize = <128>;
clocks = <&clks 29>;
+ sirf,usp-dma-rx-channel = <14>;
+ sirf,usp-dma-tx-channel = <15>;
};
usp2: usp@b00a0000 {
compatible = "sirf,prima2-usp";
reg = <0xb00a0000 0x10000>;
interrupts = <22>;
+ fifosize = <128>;
clocks = <&clks 30>;
+ sirf,usp-dma-rx-channel = <10>;
+ sirf,usp-dma-tx-channel = <11>;
};
dmac0: dma-controller@b00b0000 {
compatible = "sirf,prima2-vip";
reg = <0xb00C0000 0x10000>;
clocks = <&clks 31>;
+ interrupts = <14>;
+ sirf,vip-dma-rx-channel = <16>;
};
spi0: spi@b00d0000 {
};
sdhi0: sdhi@ee100000 {
- compatible = "renesas,r8a73a4-sdhi";
+ compatible = "renesas,sdhi-r8a73a4";
reg = <0 0xee100000 0 0x100>;
interrupt-parent = <&gic>;
interrupts = <0 165 4>;
};
sdhi1: sdhi@ee120000 {
- compatible = "renesas,r8a73a4-sdhi";
+ compatible = "renesas,sdhi-r8a73a4";
reg = <0 0xee120000 0 0x100>;
interrupt-parent = <&gic>;
interrupts = <0 166 4>;
};
sdhi2: sdhi@ee140000 {
- compatible = "renesas,r8a73a4-sdhi";
+ compatible = "renesas,sdhi-r8a73a4";
reg = <0 0xee140000 0 0x100>;
interrupt-parent = <&gic>;
interrupts = <0 167 4>;
pfc: pfc@fffc0000 {
compatible = "renesas,pfc-r8a7778";
reg = <0xfffc000 0x118>;
- #gpio-range-cells = <3>;
};
};
pfc: pfc@fffc0000 {
compatible = "renesas,pfc-r8a7779";
reg = <0xfffc0000 0x23c>;
- #gpio-range-cells = <3>;
};
thermal@ffc48000 {
pfc: pfc@e6060000 {
compatible = "renesas,pfc-r8a7790";
reg = <0 0xe6060000 0 0x250>;
- #gpio-range-cells = <3>;
};
sdhi0: sdhi@ee100000 {
- compatible = "renesas,r8a7790-sdhi";
+ compatible = "renesas,sdhi-r8a7790";
reg = <0 0xee100000 0 0x100>;
interrupt-parent = <&gic>;
interrupts = <0 165 4>;
};
sdhi1: sdhi@ee120000 {
- compatible = "renesas,r8a7790-sdhi";
+ compatible = "renesas,sdhi-r8a7790";
reg = <0 0xee120000 0 0x100>;
interrupt-parent = <&gic>;
interrupts = <0 166 4>;
};
sdhi2: sdhi@ee140000 {
- compatible = "renesas,r8a7790-sdhi";
+ compatible = "renesas,sdhi-r8a7790";
reg = <0 0xee140000 0 0x100>;
interrupt-parent = <&gic>;
interrupts = <0 167 4>;
};
sdhi3: sdhi@ee160000 {
- compatible = "renesas,r8a7790-sdhi";
+ compatible = "renesas,sdhi-r8a7790";
reg = <0 0xee160000 0 0x100>;
interrupt-parent = <&gic>;
interrupts = <0 168 4>;
};
sdhi0: sdhi@ee100000 {
- compatible = "renesas,r8a7740-sdhi";
+ compatible = "renesas,sdhi-r8a7740";
reg = <0xee100000 0x100>;
interrupt-parent = <&gic>;
interrupts = <0 83 4
/* SDHI1 and SDHI2 have no CD pins, no need for CD IRQ */
sdhi1: sdhi@ee120000 {
- compatible = "renesas,r8a7740-sdhi";
+ compatible = "renesas,sdhi-r8a7740";
reg = <0xee120000 0x100>;
interrupt-parent = <&gic>;
interrupts = <0 88 4
};
sdhi2: sdhi@ee140000 {
- compatible = "renesas,r8a7740-sdhi";
+ compatible = "renesas,sdhi-r8a7740";
reg = <0xee140000 0x100>;
interrupt-parent = <&gic>;
interrupts = <0 104 4
# $4 - default install path (blank if root directory)
#
+verify () {
+ if [ ! -f "$1" ]; then
+ echo "" 1>&2
+ echo " *** Missing file: $1" 1>&2
+ echo ' *** You need to run "make" before "make install".' 1>&2
+ echo "" 1>&2
+ exit 1
+ fi
+}
+
+# Make sure the files actually exist
+verify "$2"
+verify "$3"
+
# User may have a custom install script
if [ -x ~/bin/${INSTALLKERNEL} ]; then exec ~/bin/${INSTALLKERNEL} "$@"; fi
if [ -x /sbin/${INSTALLKERNEL} ]; then exec /sbin/${INSTALLKERNEL} "$@"; fi
.ccnt = 1,
};
+static const struct of_device_id edma_of_ids[] = {
+ { .compatible = "ti,edma3", },
+ {}
+};
+
/*****************************************************************************/
static void map_dmach_queue(unsigned ctlr, unsigned ch_no,
static int prepare_unused_channel_list(struct device *dev, void *data)
{
struct platform_device *pdev = to_platform_device(dev);
- int i, ctlr;
+ int i, count, ctlr;
+ struct of_phandle_args dma_spec;
+ if (dev->of_node) {
+ count = of_property_count_strings(dev->of_node, "dma-names");
+ if (count < 0)
+ return 0;
+ for (i = 0; i < count; i++) {
+ if (of_parse_phandle_with_args(dev->of_node, "dmas",
+ "#dma-cells", i,
+ &dma_spec))
+ continue;
+
+ if (!of_match_node(edma_of_ids, dma_spec.np)) {
+ of_node_put(dma_spec.np);
+ continue;
+ }
+
+ clear_bit(EDMA_CHAN_SLOT(dma_spec.args[0]),
+ edma_cc[0]->edma_unused);
+ of_node_put(dma_spec.np);
+ }
+ return 0;
+ }
+
+ /* For non-OF case */
for (i = 0; i < pdev->num_resources; i++) {
if ((pdev->resource[i].flags & IORESOURCE_DMA) &&
(int)pdev->resource[i].start >= 0) {
ctlr = EDMA_CTLR(pdev->resource[i].start);
clear_bit(EDMA_CHAN_SLOT(pdev->resource[i].start),
- edma_cc[ctlr]->edma_unused);
+ edma_cc[ctlr]->edma_unused);
}
}
return 0;
}
-static const struct of_device_id edma_of_ids[] = {
- { .compatible = "ti,edma3", },
- {}
-};
-
static struct platform_driver edma_driver = {
.driver = {
.name = "edma",
{
phys_reset_t phys_reset;
- BUG_ON(!platform_ops);
+ if (WARN_ON_ONCE(!platform_ops || !platform_ops->power_down))
+ return;
BUG_ON(!irqs_disabled());
/*
{
phys_reset_t phys_reset;
- BUG_ON(!platform_ops);
+ if (WARN_ON_ONCE(!platform_ops || !platform_ops->suspend))
+ return;
BUG_ON(!irqs_disabled());
/* Very similar to mcpm_cpu_power_down() */
#include <linux/module.h>
#include <linux/string.h>
#include <asm/mach/sharpsl_param.h>
+#include <asm/memory.h>
/*
* Certain hardware parameters determined at the time of device manufacture,
*/
#ifdef CONFIG_ARCH_SA1100
#define PARAM_BASE 0xe8ffc000
+#define param_start(x) (void *)(x)
#else
#define PARAM_BASE 0xa0000a00
+#define param_start(x) __va(x)
#endif
#define MAGIC_CHG(a,b,c,d) ( ( d << 24 ) | ( c << 16 ) | ( b << 8 ) | a )
void sharpsl_save_param(void)
{
- memcpy(&sharpsl_param, (void *)PARAM_BASE, sizeof(struct sharpsl_param_info));
+ memcpy(&sharpsl_param, param_start(PARAM_BASE), sizeof(struct sharpsl_param_info));
if (sharpsl_param.comadj_keyword != COMADJ_MAGIC)
sharpsl_param.comadj=-1;
CONFIG_MMC_ARMMMCI=y
CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_PLTFM=y
+CONFIG_MMC_SDHCI_ESDHC_IMX=y
CONFIG_MMC_SDHCI_TEGRA=y
CONFIG_MMC_SDHCI_SPEAR=y
CONFIG_MMC_OMAP=y
@ const AES_KEY *key) {
.align 5
ENTRY(AES_encrypt)
- sub r3,pc,#8 @ AES_encrypt
+ adr r3,AES_encrypt
stmdb sp!,{r1,r4-r12,lr}
mov r12,r0 @ inp
mov r11,r2
.align 5
ENTRY(private_AES_set_encrypt_key)
_armv4_AES_set_encrypt_key:
- sub r3,pc,#8 @ AES_set_encrypt_key
+ adr r3,_armv4_AES_set_encrypt_key
teq r0,#0
moveq r0,#-1
beq .Labrt
@ const AES_KEY *key) {
.align 5
ENTRY(AES_decrypt)
- sub r3,pc,#8 @ AES_decrypt
+ adr r3,AES_decrypt
stmdb sp!,{r1,r4-r12,lr}
mov r12,r0 @ inp
mov r11,r2
generic-y += termios.h
generic-y += timex.h
generic-y += trace_clock.h
-generic-y += types.h
generic-y += unaligned.h
static __always_inline bool arch_static_branch(struct static_key *key)
{
- asm goto("1:\n\t"
+ asm_volatile_goto("1:\n\t"
JUMP_LABEL_NOP "\n\t"
".pushsection __jump_table, \"aw\"\n\t"
".word 1b, %l[l_yes], %c0\n\t"
*
* This must be called with interrupts disabled.
*
- * This does not return. Re-entry in the kernel is expected via
- * mcpm_entry_point.
+ * On success this does not return. Re-entry in the kernel is expected
+ * via mcpm_entry_point.
+ *
+ * This will return if mcpm_platform_register() has not been called
+ * previously in which case the caller should take appropriate action.
*/
void mcpm_cpu_power_down(void);
*
* This must be called with interrupts disabled.
*
- * This does not return. Re-entry in the kernel is expected via
- * mcpm_entry_point.
+ * On success this does not return. Re-entry in the kernel is expected
+ * via mcpm_entry_point.
+ *
+ * This will return if mcpm_platform_register() has not been called
+ * previously in which case the caller should take appropriate action.
*/
void mcpm_cpu_suspend(u64 expected_residency);
unsigned int i, unsigned int n,
unsigned long *args)
{
+ if (n == 0)
+ return;
+
if (i + n > SYSCALL_MAX_ARGS) {
unsigned long *args_bad = args + SYSCALL_MAX_ARGS - i;
unsigned int n_bad = n + i - SYSCALL_MAX_ARGS;
unsigned int i, unsigned int n,
const unsigned long *args)
{
+ if (n == 0)
+ return;
+
if (i + n > SYSCALL_MAX_ARGS) {
pr_warning("%s called with max args %d, handling only %d\n",
__func__, i + n, SYSCALL_MAX_ARGS);
#include <asm/unified.h>
#include <asm/compiler.h>
+#if __LINUX_ARM_ARCH__ < 6
+#include <asm-generic/uaccess-unaligned.h>
+#else
+#define __get_user_unaligned __get_user
+#define __put_user_unaligned __put_user
+#endif
+
#define VERIFY_READ 0
#define VERIFY_WRITE 1
ldrcc pc, [tbl, scno, lsl #2] @ call sys_* routine
add r1, sp, #S_OFF
- cmp scno, #(__ARM_NR_BASE - __NR_SYSCALL_BASE)
+2: cmp scno, #(__ARM_NR_BASE - __NR_SYSCALL_BASE)
eor r0, scno, #__NR_SYSCALL_BASE @ put OS number back
bcs arm_syscall
-2: mov why, #0 @ no longer a real syscall
+ mov why, #0 @ no longer a real syscall
b sys_ni_syscall @ not private func
#if defined(CONFIG_OABI_COMPAT) || !defined(CONFIG_AEABI)
#ifdef CONFIG_CONTEXT_TRACKING
.if \save
stmdb sp!, {r0-r3, ip, lr}
- bl user_exit
+ bl context_tracking_user_exit
ldmia sp!, {r0-r3, ip, lr}
.else
- bl user_exit
+ bl context_tracking_user_exit
.endif
#endif
.endm
#ifdef CONFIG_CONTEXT_TRACKING
.if \save
stmdb sp!, {r0-r3, ip, lr}
- bl user_enter
+ bl context_tracking_user_enter
ldmia sp!, {r0-r3, ip, lr}
.else
- bl user_enter
+ bl context_tracking_user_enter
.endif
#endif
.endm
mrc p15, 0, r0, c0, c0, 5 @ read MPIDR
and r0, r0, #0xc0000000 @ multiprocessing extensions and
teq r0, #0x80000000 @ not part of a uniprocessor system?
- moveq pc, lr @ yes, assume SMP
+ bne __fixup_smp_on_up @ no, assume UP
+
+ @ Core indicates it is SMP. Check for Aegis SOC where a single
+ @ Cortex-A9 CPU is present but SMP operations fault.
+ mov r4, #0x41000000
+ orr r4, r4, #0x0000c000
+ orr r4, r4, #0x00000090
+ teq r3, r4 @ Check for ARM Cortex-A9
+ movne pc, lr @ Not ARM Cortex-A9,
+
+ @ If a future SoC *does* use 0x0 as the PERIPH_BASE, then the
+ @ below address check will need to be #ifdef'd or equivalent
+ @ for the Aegis platform.
+ mrc p15, 4, r0, c15, c0 @ get SCU base address
+ teq r0, #0x0 @ '0' on actual UP A9 hardware
+ beq __fixup_smp_on_up @ So its an A9 UP
+ ldr r0, [r0, #4] @ read SCU Config
+ and r0, r0, #0x3 @ number of CPUs
+ teq r0, #0x0 @ is 1?
+ movne pc, lr
__fixup_smp_on_up:
adr r0, 1f
*/
int kvm_reset_vcpu(struct kvm_vcpu *vcpu)
{
- struct kvm_regs *cpu_reset;
+ struct kvm_regs *reset_regs;
const struct kvm_irq_level *cpu_vtimer_irq;
switch (vcpu->arch.target) {
case KVM_ARM_TARGET_CORTEX_A15:
if (vcpu->vcpu_id > a15_max_cpu_idx)
return -EINVAL;
- cpu_reset = &a15_regs_reset;
+ reset_regs = &a15_regs_reset;
vcpu->arch.midr = read_cpuid_id();
cpu_vtimer_irq = &a15_vtimer_irq;
break;
}
/* Reset core registers */
- memcpy(&vcpu->arch.regs, cpu_reset, sizeof(vcpu->arch.regs));
+ memcpy(&vcpu->arch.regs, reset_regs, sizeof(vcpu->arch.regs));
/* Reset CP15 registers */
kvm_reset_coprocs(vcpu);
# Power Management
obj-$(CONFIG_PM) += pm.o
obj-$(CONFIG_AT91_SLOW_CLOCK) += pm_slowclock.o
-obj-$(CONFIG_CPU_IDLE) += cpuidle.o
ifeq ($(CONFIG_PM_DEBUG),y)
CFLAGS_pm.o += -DDEBUG
#include "generic.h"
#include "clock.h"
#include "sam9_smc.h"
+#include "pm.h"
/* --------------------------------------------------------------------
* Clocks
{
at91rm9200_ioremap_st(AT91RM9200_BASE_ST);
at91_ioremap_ramc(0, AT91RM9200_BASE_MC, 256);
+ at91_pm_set_standby(at91rm9200_standby);
}
static void __init at91rm9200_initialize(void)
static struct irqaction at91rm9200_timer_irq = {
.name = "at91_tick",
- .flags = IRQF_SHARED | IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
+ .flags = IRQF_SHARED | IRQF_TIMER | IRQF_IRQPOLL,
.handler = at91rm9200_timer_interrupt,
.irq = NR_IRQS_LEGACY + AT91_ID_SYS,
};
#include "generic.h"
#include "clock.h"
#include "sam9_smc.h"
+#include "pm.h"
/* --------------------------------------------------------------------
* Clocks
at91sam926x_ioremap_pit(AT91SAM9260_BASE_PIT);
at91sam9_ioremap_smc(0, AT91SAM9260_BASE_SMC);
at91_ioremap_matrix(AT91SAM9260_BASE_MATRIX);
+ at91_pm_set_standby(at91sam9_sdram_standby);
}
static void __init at91sam9260_initialize(void)
#include "generic.h"
#include "clock.h"
#include "sam9_smc.h"
+#include "pm.h"
/* --------------------------------------------------------------------
* Clocks
at91sam926x_ioremap_pit(AT91SAM9261_BASE_PIT);
at91sam9_ioremap_smc(0, AT91SAM9261_BASE_SMC);
at91_ioremap_matrix(AT91SAM9261_BASE_MATRIX);
+ at91_pm_set_standby(at91sam9_sdram_standby);
}
static void __init at91sam9261_initialize(void)
#include "generic.h"
#include "clock.h"
#include "sam9_smc.h"
+#include "pm.h"
/* --------------------------------------------------------------------
* Clocks
at91sam9_ioremap_smc(0, AT91SAM9263_BASE_SMC0);
at91sam9_ioremap_smc(1, AT91SAM9263_BASE_SMC1);
at91_ioremap_matrix(AT91SAM9263_BASE_MATRIX);
+ at91_pm_set_standby(at91sam9_sdram_standby);
}
static void __init at91sam9263_initialize(void)
static struct irqaction at91sam926x_pit_irq = {
.name = "at91_tick",
- .flags = IRQF_SHARED | IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
+ .flags = IRQF_SHARED | IRQF_TIMER | IRQF_IRQPOLL,
.handler = at91sam926x_pit_interrupt,
.irq = NR_IRQS_LEGACY + AT91_ID_SYS,
};
#include "generic.h"
#include "clock.h"
#include "sam9_smc.h"
+#include "pm.h"
/* --------------------------------------------------------------------
* Clocks
at91sam926x_ioremap_pit(AT91SAM9G45_BASE_PIT);
at91sam9_ioremap_smc(0, AT91SAM9G45_BASE_SMC);
at91_ioremap_matrix(AT91SAM9G45_BASE_MATRIX);
+ at91_pm_set_standby(at91_ddr_standby);
}
static void __init at91sam9g45_initialize(void)
#include "at91_rstc.h"
.arm
+/*
+ * at91_ramc_base is an array void*
+ * init at NULL if only one DDR controler is present in or DT
+ */
.globl at91sam9g45_restart
at91sam9g45_restart:
ldr r5, =at91_ramc_base @ preload constants
ldr r0, [r5]
+ ldr r5, [r5, #4] @ ddr1
+ cmp r5, #0
ldr r4, =at91_rstc_base
ldr r1, [r4]
.balign 32 @ align to cache line
+ strne r2, [r5, #AT91_DDRSDRC_RTR] @ disable DDR1 access
+ strne r3, [r5, #AT91_DDRSDRC_LPR] @ power down DDR1
str r2, [r0, #AT91_DDRSDRC_RTR] @ disable DDR0 access
str r3, [r0, #AT91_DDRSDRC_LPR] @ power down DDR0
str r4, [r1, #AT91_RSTC_CR] @ reset processor
#include "generic.h"
#include "clock.h"
#include "sam9_smc.h"
+#include "pm.h"
/* --------------------------------------------------------------------
* Clocks
at91sam926x_ioremap_pit(AT91SAM9RL_BASE_PIT);
at91sam9_ioremap_smc(0, AT91SAM9RL_BASE_SMC);
at91_ioremap_matrix(AT91SAM9RL_BASE_MATRIX);
+ at91_pm_set_standby(at91sam9_sdram_standby);
}
static void __init at91sam9rl_initialize(void)
static struct irqaction at91x40_timer_irq = {
.name = "at91_tick",
- .flags = IRQF_DISABLED | IRQF_TIMER,
+ .flags = IRQF_TIMER,
.handler = at91x40_timer_interrupt
};
+++ /dev/null
-/*
- * based on arch/arm/mach-kirkwood/cpuidle.c
- *
- * CPU idle support for AT91 SoC
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- *
- * The cpu idle uses wait-for-interrupt and RAM self refresh in order
- * to implement two idle states -
- * #1 wait-for-interrupt
- * #2 wait-for-interrupt and RAM self refresh
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/cpuidle.h>
-#include <linux/io.h>
-#include <linux/export.h>
-#include <asm/proc-fns.h>
-#include <asm/cpuidle.h>
-#include <mach/cpu.h>
-
-#include "pm.h"
-
-#define AT91_MAX_STATES 2
-
-/* Actual code that puts the SoC in different idle states */
-static int at91_enter_idle(struct cpuidle_device *dev,
- struct cpuidle_driver *drv,
- int index)
-{
- if (cpu_is_at91rm9200())
- at91rm9200_standby();
- else if (cpu_is_at91sam9g45())
- at91sam9g45_standby();
- else if (cpu_is_at91sam9263())
- at91sam9263_standby();
- else
- at91sam9_standby();
-
- return index;
-}
-
-static struct cpuidle_driver at91_idle_driver = {
- .name = "at91_idle",
- .owner = THIS_MODULE,
- .states[0] = ARM_CPUIDLE_WFI_STATE,
- .states[1] = {
- .enter = at91_enter_idle,
- .exit_latency = 10,
- .target_residency = 10000,
- .flags = CPUIDLE_FLAG_TIME_VALID,
- .name = "RAM_SR",
- .desc = "WFI and DDR Self Refresh",
- },
- .state_count = AT91_MAX_STATES,
-};
-
-/* Initialize CPU idle by registering the idle states */
-static int __init at91_init_cpuidle(void)
-{
- return cpuidle_register(&at91_idle_driver, NULL);
-}
-
-device_initcall(at91_init_cpuidle);
#include "at91_rstc.h"
#include "at91_shdwc.h"
+static void (*at91_pm_standby)(void);
+
static void __init show_reset_status(void)
{
static char reset[] __initdata = "reset";
* For ARM 926 based chips, this requirement is weaker
* as at91sam9 can access a RAM in self-refresh mode.
*/
- if (cpu_is_at91rm9200())
- at91rm9200_standby();
- else if (cpu_is_at91sam9g45())
- at91sam9g45_standby();
- else if (cpu_is_at91sam9263())
- at91sam9263_standby();
- else
- at91sam9_standby();
+ if (at91_pm_standby)
+ at91_pm_standby();
break;
case PM_SUSPEND_ON:
.end = at91_pm_end,
};
+static struct platform_device at91_cpuidle_device = {
+ .name = "cpuidle-at91",
+};
+
+void at91_pm_set_standby(void (*at91_standby)(void))
+{
+ if (at91_standby) {
+ at91_cpuidle_device.dev.platform_data = at91_standby;
+ at91_pm_standby = at91_standby;
+ }
+}
+
static int __init at91_pm_init(void)
{
#ifdef CONFIG_AT91_SLOW_CLOCK
/* AT91RM9200 SDRAM low-power mode cannot be used with self-refresh. */
if (cpu_is_at91rm9200())
at91_ramc_write(0, AT91RM9200_SDRAMC_LPR, 0);
+
+ if (at91_cpuidle_device.dev.platform_data)
+ platform_device_register(&at91_cpuidle_device);
suspend_set_ops(&at91_pm_ops);
#ifndef __ARCH_ARM_MACH_AT91_PM
#define __ARCH_ARM_MACH_AT91_PM
+#include <asm/proc-fns.h>
+
#include <mach/at91_ramc.h>
#include <mach/at91rm9200_sdramc.h>
+extern void at91_pm_set_standby(void (*at91_standby)(void));
+
/*
* The AT91RM9200 goes into self-refresh mode with this command, and will
* terminate self-refresh automatically on the next SDRAM access.
/* We manage both DDRAM/SDRAM controllers, we need more than one value to
* remember.
*/
-static inline void at91sam9g45_standby(void)
+static inline void at91_ddr_standby(void)
{
/* Those two values allow us to delay self-refresh activation
* to the maximum. */
- u32 lpr0, lpr1;
- u32 saved_lpr0, saved_lpr1;
+ u32 lpr0, lpr1 = 0;
+ u32 saved_lpr0, saved_lpr1 = 0;
- saved_lpr1 = at91_ramc_read(1, AT91_DDRSDRC_LPR);
- lpr1 = saved_lpr1 & ~AT91_DDRSDRC_LPCB;
- lpr1 |= AT91_DDRSDRC_LPCB_SELF_REFRESH;
+ if (at91_ramc_base[1]) {
+ saved_lpr1 = at91_ramc_read(1, AT91_DDRSDRC_LPR);
+ lpr1 = saved_lpr1 & ~AT91_DDRSDRC_LPCB;
+ lpr1 |= AT91_DDRSDRC_LPCB_SELF_REFRESH;
+ }
saved_lpr0 = at91_ramc_read(0, AT91_DDRSDRC_LPR);
lpr0 = saved_lpr0 & ~AT91_DDRSDRC_LPCB;
/* self-refresh mode now */
at91_ramc_write(0, AT91_DDRSDRC_LPR, lpr0);
- at91_ramc_write(1, AT91_DDRSDRC_LPR, lpr1);
+ if (at91_ramc_base[1])
+ at91_ramc_write(1, AT91_DDRSDRC_LPR, lpr1);
cpu_do_idle();
at91_ramc_write(0, AT91_DDRSDRC_LPR, saved_lpr0);
- at91_ramc_write(1, AT91_DDRSDRC_LPR, saved_lpr1);
+ if (at91_ramc_base[1])
+ at91_ramc_write(1, AT91_DDRSDRC_LPR, saved_lpr1);
}
/* We manage both DDRAM/SDRAM controllers, we need more than one value to
* remember.
*/
-static inline void at91sam9263_standby(void)
+static inline void at91sam9_sdram_standby(void)
{
- u32 lpr0, lpr1;
- u32 saved_lpr0, saved_lpr1;
+ u32 lpr0, lpr1 = 0;
+ u32 saved_lpr0, saved_lpr1 = 0;
- saved_lpr1 = at91_ramc_read(1, AT91_SDRAMC_LPR);
- lpr1 = saved_lpr1 & ~AT91_SDRAMC_LPCB;
- lpr1 |= AT91_SDRAMC_LPCB_SELF_REFRESH;
+ if (at91_ramc_base[1]) {
+ saved_lpr1 = at91_ramc_read(1, AT91_SDRAMC_LPR);
+ lpr1 = saved_lpr1 & ~AT91_SDRAMC_LPCB;
+ lpr1 |= AT91_SDRAMC_LPCB_SELF_REFRESH;
+ }
saved_lpr0 = at91_ramc_read(0, AT91_SDRAMC_LPR);
lpr0 = saved_lpr0 & ~AT91_SDRAMC_LPCB;
/* self-refresh mode now */
at91_ramc_write(0, AT91_SDRAMC_LPR, lpr0);
- at91_ramc_write(1, AT91_SDRAMC_LPR, lpr1);
+ if (at91_ramc_base[1])
+ at91_ramc_write(1, AT91_SDRAMC_LPR, lpr1);
cpu_do_idle();
at91_ramc_write(0, AT91_SDRAMC_LPR, saved_lpr0);
- at91_ramc_write(1, AT91_SDRAMC_LPR, saved_lpr1);
-}
-
-static inline void at91sam9_standby(void)
-{
- u32 saved_lpr, lpr;
-
- saved_lpr = at91_ramc_read(0, AT91_SDRAMC_LPR);
-
- lpr = saved_lpr & ~AT91_SDRAMC_LPCB;
- at91_ramc_write(0, AT91_SDRAMC_LPR, lpr |
- AT91_SDRAMC_LPCB_SELF_REFRESH);
-
- cpu_do_idle();
-
- at91_ramc_write(0, AT91_SDRAMC_LPR, saved_lpr);
+ if (at91_ramc_base[1])
+ at91_ramc_write(1, AT91_SDRAMC_LPR, saved_lpr1);
}
#endif
#include "at91_shdwc.h"
#include "soc.h"
#include "generic.h"
+#include "pm.h"
struct at91_init_soc __initdata at91_boot_soc;
}
static struct of_device_id ramc_ids[] = {
- { .compatible = "atmel,at91rm9200-sdramc" },
- { .compatible = "atmel,at91sam9260-sdramc" },
- { .compatible = "atmel,at91sam9g45-ddramc" },
+ { .compatible = "atmel,at91rm9200-sdramc", .data = at91rm9200_standby },
+ { .compatible = "atmel,at91sam9260-sdramc", .data = at91sam9_sdram_standby },
+ { .compatible = "atmel,at91sam9g45-ddramc", .data = at91_ddr_standby },
{ /*sentinel*/ }
};
static void at91_dt_ramc(void)
{
struct device_node *np;
+ const struct of_device_id *of_id;
np = of_find_matching_node(NULL, ramc_ids);
if (!np)
/* the controller may have 2 banks */
at91_ramc_base[1] = of_iomap(np, 1);
+ of_id = of_match_node(ramc_ids, np);
+ if (!of_id)
+ pr_warn("AT91: ramc no standby function available\n");
+ else
+ at91_pm_set_standby(of_id->data);
+
of_node_put(np);
}
bool "DA850/OMAP-L138/AM18x based system"
select ARCH_DAVINCI_DA8XX
select ARCH_HAS_CPUFREQ
- select CPU_FREQ_TABLE
select CP_INTC
config ARCH_DAVINCI_DA8XX
.context = (void *)0x7f00,
};
-static struct snd_platform_data dm365_evm_snd_data = {
+static struct snd_platform_data dm365_evm_snd_data __maybe_unused = {
.asp_chan_q = EVENTQ_3,
};
#include <mach/hardware.h>
-#include <linux/platform_device.h>
-
#define DAVINCI_UART0_BASE (IO_PHYS + 0x20000)
#define DAVINCI_UART1_BASE (IO_PHYS + 0x20400)
#define DAVINCI_UART2_BASE (IO_PHYS + 0x20800)
#define UART_DM646X_SCR_TX_WATERMARK 0x08
#ifndef __ASSEMBLY__
+#include <linux/platform_device.h>
+
extern int davinci_serial_init(struct platform_device *);
#endif
#include <linux/clk-provider.h>
#include <linux/irqchip/arm-gic.h>
#include <linux/irqchip/chained_irq.h>
+#include <linux/platform_device.h>
#include <asm/proc-fns.h>
#include <asm/exception.h>
__raw_writel(val, addr);
}
+static struct platform_device exynos_cpuidle = {
+ .name = "exynos_cpuidle",
+ .id = -1,
+};
+
+void __init exynos_cpuidle_init(void)
+{
+ platform_device_register(&exynos_cpuidle);
+}
+
void __init exynos_init_late(void)
{
if (of_machine_is_compatible("samsung,exynos5440"))
void exynos_init_io(void);
void exynos4_restart(enum reboot_mode mode, const char *cmd);
void exynos5_restart(enum reboot_mode mode, const char *cmd);
+void exynos_cpuidle_init(void);
void exynos_init_late(void);
void exynos_firmware_init(void);
#include <linux/io.h>
#include <linux/export.h>
#include <linux/time.h>
+#include <linux/platform_device.h>
#include <asm/proc-fns.h>
#include <asm/smp_scu.h>
__raw_writel(tmp, EXYNOS5_PWR_CTRL2);
}
-static int __init exynos4_init_cpuidle(void)
+static int __init exynos_cpuidle_probe(struct platform_device *pdev)
{
int cpu_id, ret;
struct cpuidle_device *device;
return 0;
}
-device_initcall(exynos4_init_cpuidle);
+
+static struct platform_driver exynos_cpuidle_driver = {
+ .probe = exynos_cpuidle_probe,
+ .driver = {
+ .name = "exynos_cpuidle",
+ .owner = THIS_MODULE,
+ },
+};
+
+module_platform_driver(exynos_cpuidle_driver);
static void __init exynos4_dt_machine_init(void)
{
+ exynos_cpuidle_init();
+
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
}
}
}
+ exynos_cpuidle_init();
+
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
}
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
#include <linux/phy.h>
#include <linux/reboot.h>
#include <linux/regmap.h>
val = readl_relaxed(base + OCOTP_CFG3);
val >>= OCOTP_CFG3_SPEED_SHIFT;
if ((val & 0x3) != OCOTP_CFG3_SPEED_1P2GHZ)
- if (opp_disable(cpu_dev, 1200000000))
+ if (dev_pm_opp_disable(cpu_dev, 1200000000))
pr_warn("failed to disable 1.2 GHz OPP\n");
put_node:
/* Simple oneliner include to the PCIv3 early init */
+#ifdef CONFIG_PCI
extern int pci_v3_early_init(void);
+#else
+static inline int pci_v3_early_init(void)
+{
+ return 0;
+}
+#endif
coherency_base = of_iomap(np, 0);
coherency_cpu_base = of_iomap(np, 1);
set_cpu_coherent(cpu_logical_map(smp_processor_id()), 0);
+ of_node_put(np);
}
return 0;
static int __init coherency_late_init(void)
{
- if (of_find_matching_node(NULL, of_coherency_table))
+ struct device_node *np;
+
+ np = of_find_matching_node(NULL, of_coherency_table);
+ if (np) {
bus_register_notifier(&platform_bus_type,
&mvebu_hwcc_platform_nb);
+ of_node_put(np);
+ }
return 0;
}
pr_info("Initializing Power Management Service Unit\n");
pmsu_mp_base = of_iomap(np, 0);
pmsu_reset_base = of_iomap(np, 1);
+ of_node_put(np);
}
return 0;
BUG_ON(!match);
system_controller_base = of_iomap(np, 0);
mvebu_sc = (struct mvebu_system_controller *)match->data;
+ of_node_put(np);
}
return 0;
.restart = omap3xxx_restart,
MACHINE_END
+static const char *omap36xx_boards_compat[] __initdata = {
+ "ti,omap36xx",
+ NULL,
+};
+
+DT_MACHINE_START(OMAP36XX_DT, "Generic OMAP36xx (Flattened Device Tree)")
+ .reserve = omap_reserve,
+ .map_io = omap3_map_io,
+ .init_early = omap3630_init_early,
+ .init_irq = omap_intc_of_init,
+ .handle_irq = omap3_intc_handle_irq,
+ .init_machine = omap_generic_init,
+ .init_late = omap3_init_late,
+ .init_time = omap3_sync32k_timer_init,
+ .dt_compat = omap36xx_boards_compat,
+ .restart = omap3xxx_restart,
+MACHINE_END
+
static const char *omap3_gp_boards_compat[] __initdata = {
"ti,omap3-beagle",
"timll,omap3-devkit8000",
#include <linux/gpio.h>
#include <linux/input.h>
#include <linux/gpio_keys.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
#include <linux/cpu.h>
#include <linux/mtd/mtd.h>
return -ENODEV;
}
/* Enable MPU 1GHz and lower opps */
- r = opp_enable(mpu_dev, 800000000);
+ r = dev_pm_opp_enable(mpu_dev, 800000000);
/* TODO: MPU 1GHz needs SR and ABB */
/* Enable IVA 800MHz and lower opps */
- r |= opp_enable(iva_dev, 660000000);
+ r |= dev_pm_opp_enable(iva_dev, 660000000);
/* TODO: DSP 800MHz needs SR and ABB */
if (r) {
pr_err("%s: failed to enable higher opp %d\n",
* Cleanup - disable the higher freqs - we dont care
* about the results
*/
- opp_disable(mpu_dev, 800000000);
- opp_disable(iva_dev, 660000000);
+ dev_pm_opp_disable(mpu_dev, 800000000);
+ dev_pm_opp_disable(iva_dev, 660000000);
}
}
return 0;
.name = "lp5523:kb1",
.chan_nr = 0,
.led_current = 50,
+ .max_current = 100,
}, {
.name = "lp5523:kb2",
.chan_nr = 1,
.led_current = 50,
+ .max_current = 100,
}, {
.name = "lp5523:kb3",
.chan_nr = 2,
.led_current = 50,
+ .max_current = 100,
}, {
.name = "lp5523:kb4",
.chan_nr = 3,
.led_current = 50,
+ .max_current = 100,
}, {
.name = "lp5523:b",
.chan_nr = 4,
.led_current = 50,
+ .max_current = 100,
}, {
.name = "lp5523:g",
.chan_nr = 5,
.led_current = 50,
+ .max_current = 100,
}, {
.name = "lp5523:r",
.chan_nr = 6,
.led_current = 50,
+ .max_current = 100,
}, {
.name = "lp5523:kb5",
.chan_nr = 7,
.led_current = 50,
+ .max_current = 100,
}, {
.name = "lp5523:kb6",
.chan_nr = 8,
.led_current = 50,
+ .max_current = 100,
}
};
struct gpmc_timings t;
int ret;
- if (gpmc_onenand_data->of_node)
+ if (gpmc_onenand_data->of_node) {
gpmc_read_settings_dt(gpmc_onenand_data->of_node,
&onenand_async);
+ if (onenand_async.sync_read || onenand_async.sync_write) {
+ if (onenand_async.sync_write)
+ gpmc_onenand_data->flags |=
+ ONENAND_SYNC_READWRITE;
+ else
+ gpmc_onenand_data->flags |= ONENAND_SYNC_READ;
+ onenand_async.sync_read = false;
+ onenand_async.sync_write = false;
+ }
+ }
omap2_onenand_set_async_mode(onenand_base);
#define OMAP_PULL_UP (1 << 4)
#define OMAP_ALTELECTRICALSEL (1 << 5)
-/* 34xx specific mux bit defines */
+/* omap3/4/5 specific mux bit defines */
#define OMAP_INPUT_EN (1 << 8)
#define OMAP_OFF_EN (1 << 9)
#define OMAP_OFFOUT_EN (1 << 10)
#define OMAP_OFF_PULL_EN (1 << 12)
#define OMAP_OFF_PULL_UP (1 << 13)
#define OMAP_WAKEUP_EN (1 << 14)
-
-/* 44xx specific mux bit defines */
#define OMAP_WAKEUP_EVENT (1 << 15)
/* Active pin states */
#include <linux/device.h>
#include <linux/cpufreq.h>
#include <linux/clk.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
/*
* agent_id values for use with omap_pm_set_min_bus_tput():
* GNU General Public License for more details.
*/
#include <linux/module.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
#include <linux/cpu.h>
#include "omap_device.h"
dev = &oh->od->pdev->dev;
}
- r = opp_add(dev, opp_def->freq, opp_def->u_volt);
+ r = dev_pm_opp_add(dev, opp_def->freq, opp_def->u_volt);
if (r) {
dev_err(dev, "%s: add OPP %ld failed for %s [%d] result=%d\n",
__func__, opp_def->freq,
opp_def->hwmod_name, i, r);
} else {
if (!opp_def->default_available)
- r = opp_disable(dev, opp_def->freq);
+ r = dev_pm_opp_disable(dev, opp_def->freq);
if (r)
dev_err(dev, "%s: disable %ld failed for %s [%d] result=%d\n",
__func__, opp_def->freq,
#include <linux/init.h>
#include <linux/io.h>
#include <linux/err.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
#include <linux/export.h>
#include <linux/suspend.h>
#include <linux/cpu.h>
{
struct voltagedomain *voltdm;
struct clk *clk;
- struct opp *opp;
+ struct dev_pm_opp *opp;
unsigned long freq, bootup_volt;
struct device *dev;
clk_put(clk);
rcu_read_lock();
- opp = opp_find_freq_ceil(dev, &freq);
+ opp = dev_pm_opp_find_freq_ceil(dev, &freq);
if (IS_ERR(opp)) {
rcu_read_unlock();
pr_err("%s: unable to find boot up OPP for vdd_%s\n",
goto exit;
}
- bootup_volt = opp_get_voltage(opp);
+ bootup_volt = dev_pm_opp_get_voltage(opp);
rcu_read_unlock();
if (!bootup_volt) {
pr_err("%s: unable to find voltage corresponding to the bootup OPP for vdd_%s\n",
#endif /* CONFIG_HAVE_ARM_TWD */
#endif /* CONFIG_ARCH_OMAP4 */
-#ifdef CONFIG_SOC_OMAP5
+#if defined(CONFIG_SOC_OMAP5) || defined(CONFIG_SOC_DRA7XX)
void __init omap5_realtime_timer_init(void)
{
omap4_sync32k_timer_init();
clocksource_of_init();
}
-#endif /* CONFIG_SOC_OMAP5 */
+#endif /* CONFIG_SOC_OMAP5 || CONFIG_SOC_DRA7XX */
/**
* omap_timer_init - build and register timer device with an
config PXA25x
bool
select CPU_XSCALE
- select CPU_FREQ_TABLE if CPU_FREQ
help
Select code specific to PXA21x/25x/26x variants
config PXA27x
bool
select CPU_XSCALE
- select CPU_FREQ_TABLE if CPU_FREQ
help
Select code specific to PXA27x variants
config PXA3xx
bool
select CPU_XSC3
- select CPU_FREQ_TABLE if CPU_FREQ
help
Select code specific to PXA3xx variants
/*
* This table is setup for a 3.6864MHz Crystal.
*/
-static const unsigned short cclk_frequency_100khz[NR_FREQS] = {
- 590, /* 59.0 MHz */
- 737, /* 73.7 MHz */
- 885, /* 88.5 MHz */
- 1032, /* 103.2 MHz */
- 1180, /* 118.0 MHz */
- 1327, /* 132.7 MHz */
- 1475, /* 147.5 MHz */
- 1622, /* 162.2 MHz */
- 1769, /* 176.9 MHz */
- 1917, /* 191.7 MHz */
- 2064, /* 206.4 MHz */
- 2212, /* 221.2 MHz */
- 2359, /* 235.9 MHz */
- 2507, /* 250.7 MHz */
- 2654, /* 265.4 MHz */
- 2802 /* 280.2 MHz */
+struct cpufreq_frequency_table sa11x0_freq_table[NR_FREQS+1] = {
+ { .frequency = 59000, /* 59.0 MHz */},
+ { .frequency = 73700, /* 73.7 MHz */},
+ { .frequency = 88500, /* 88.5 MHz */},
+ { .frequency = 103200, /* 103.2 MHz */},
+ { .frequency = 118000, /* 118.0 MHz */},
+ { .frequency = 132700, /* 132.7 MHz */},
+ { .frequency = 147500, /* 147.5 MHz */},
+ { .frequency = 162200, /* 162.2 MHz */},
+ { .frequency = 176900, /* 176.9 MHz */},
+ { .frequency = 191700, /* 191.7 MHz */},
+ { .frequency = 206400, /* 206.4 MHz */},
+ { .frequency = 221200, /* 221.2 MHz */},
+ { .frequency = 235900, /* 235.9 MHz */},
+ { .frequency = 250700, /* 250.7 MHz */},
+ { .frequency = 265400, /* 265.4 MHz */},
+ { .frequency = 280200, /* 280.2 MHz */},
+ { .frequency = CPUFREQ_TABLE_END, },
};
-/* rounds up(!) */
-unsigned int sa11x0_freq_to_ppcr(unsigned int khz)
-{
- int i;
-
- khz /= 100;
-
- for (i = 0; i < NR_FREQS; i++)
- if (cclk_frequency_100khz[i] >= khz)
- break;
-
- return i;
-}
-
-unsigned int sa11x0_ppcr_to_freq(unsigned int idx)
-{
- unsigned int freq = 0;
- if (idx < NR_FREQS)
- freq = cclk_frequency_100khz[idx] * 100;
- return freq;
-}
-
-
-/* make sure that only the "userspace" governor is run -- anything else wouldn't make sense on
- * this platform, anyway.
- */
-int sa11x0_verify_speed(struct cpufreq_policy *policy)
-{
- unsigned int tmp;
- if (policy->cpu)
- return -EINVAL;
-
- cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, policy->cpuinfo.max_freq);
-
- /* make sure that at least one frequency is within the policy */
- tmp = cclk_frequency_100khz[sa11x0_freq_to_ppcr(policy->min)] * 100;
- if (tmp > policy->max)
- policy->max = tmp;
-
- cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, policy->cpuinfo.max_freq);
-
- return 0;
-}
-
unsigned int sa11x0_getspeed(unsigned int cpu)
{
if (cpu)
return 0;
- return cclk_frequency_100khz[PPCR & 0xf] * 100;
+ return sa11x0_freq_table[PPCR & 0xf].frequency;
}
/*
*
* Author: Nicolas Pitre
*/
+#include <linux/cpufreq.h>
#include <linux/reboot.h>
extern void sa1100_timer_init(void);
extern void sa1110_mb_enable(void);
extern void sa1110_mb_disable(void);
-struct cpufreq_policy;
-
-extern unsigned int sa11x0_freq_to_ppcr(unsigned int khz);
-extern int sa11x0_verify_speed(struct cpufreq_policy *policy);
+extern struct cpufreq_frequency_table sa11x0_freq_table[];
extern unsigned int sa11x0_getspeed(unsigned int cpu);
-extern unsigned int sa11x0_ppcr_to_freq(unsigned int idx);
struct flash_platform_data;
struct resource;
PIN_MAP_MUX_GROUP_DEFAULT("asoc-simple-card.1", "pfc-r8a7740",
"fsib_mclk_in", "fsib"),
/* GETHER */
- PIN_MAP_MUX_GROUP_DEFAULT("sh-eth", "pfc-r8a7740",
+ PIN_MAP_MUX_GROUP_DEFAULT("r8a7740-gether", "pfc-r8a7740",
"gether_mii", "gether"),
- PIN_MAP_MUX_GROUP_DEFAULT("sh-eth", "pfc-r8a7740",
+ PIN_MAP_MUX_GROUP_DEFAULT("r8a7740-gether", "pfc-r8a7740",
"gether_int", "gether"),
/* HDMI */
PIN_MAP_MUX_GROUP_DEFAULT("sh-mobile-hdmi", "pfc-r8a7740",
#include <linux/pinctrl/machine.h>
#include <linux/platform_data/gpio-rcar.h>
#include <linux/platform_device.h>
+#include <linux/phy.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
#include <linux/sh_eth.h>
ðer_pdata, sizeof(ether_pdata));
}
+/*
+ * Ether LEDs on the Lager board are named LINK and ACTIVE which corresponds
+ * to non-default 01 setting of the Micrel KSZ8041 PHY control register 1 bits
+ * 14-15. We have to set them back to 01 from the default 00 value each time
+ * the PHY is reset. It's also important because the PHY's LED0 signal is
+ * connected to SoC's ETH_LINK signal and in the PHY's default mode it will
+ * bounce on and off after each packet, which we apparently want to avoid.
+ */
+static int lager_ksz8041_fixup(struct phy_device *phydev)
+{
+ u16 phyctrl1 = phy_read(phydev, 0x1e);
+
+ phyctrl1 &= ~0xc000;
+ phyctrl1 |= 0x4000;
+ return phy_write(phydev, 0x1e, phyctrl1);
+}
+
+static void __init lager_init(void)
+{
+ lager_add_standard_devices();
+
+ phy_register_fixup_for_id("r8a7790-ether-ff:01", lager_ksz8041_fixup);
+}
+
static const char *lager_boards_compat_dt[] __initdata = {
"renesas,lager",
NULL,
DT_MACHINE_START(LAGER_DT, "lager")
.init_early = r8a7790_init_delay,
.init_time = r8a7790_timer_init,
- .init_machine = lager_add_standard_devices,
+ .init_machine = lager_init,
.dt_compat = lager_boards_compat_dt,
MACHINE_END
config UX500_SOC_DB8500
bool
- select CPU_FREQ_TABLE if CPU_FREQ
select MFD_DB8500_PRCMU
select PINCTRL_DB8500
select PINCTRL_DB8540
} else
BUG();
+ /*
+ * If the CPU is committed to power down, make sure
+ * the power controller will be in charge of waking it
+ * up upon IRQ, ie IRQ lines are cut from GIC CPU IF
+ * to the CPU by disabling the GIC CPU IF to prevent wfi
+ * from completing execution behind power controller back
+ */
+ if (!skip_wfi)
+ gic_cpu_if_down();
+
if (last_man && __mcpm_outbound_enter_critical(cpu, cluster)) {
arch_spin_unlock(&tc2_pm_lock);
cpu = MPIDR_AFFINITY_LEVEL(mpidr, 0);
cluster = MPIDR_AFFINITY_LEVEL(mpidr, 1);
ve_spc_set_resume_addr(cluster, cpu, virt_to_phys(mcpm_entry_point));
- gic_cpu_if_down();
tc2_pm_down(residency);
}
{}
};
+static struct platform_device zynq_cpuidle_device = {
+ .name = "cpuidle-zynq",
+};
+
/**
* zynq_init_machine - System specific initialization, intended to be
* called from board specific initialization.
l2x0_of_init(0x02060000, 0xF0F0FFFF);
of_platform_bus_probe(NULL, zynq_of_bus_ids, NULL);
+
+ platform_device_register(&zynq_cpuidle_device);
}
static void __init zynq_timer_init(void)
break;
len = (j - i) << PAGE_SHIFT;
- ret = iommu_map(mapping->domain, iova, phys, len, 0);
+ ret = iommu_map(mapping->domain, iova, phys, len,
+ IOMMU_READ|IOMMU_WRITE);
if (ret < 0)
goto fail;
iova += len;
GFP_KERNEL);
}
+static int __dma_direction_to_prot(enum dma_data_direction dir)
+{
+ int prot;
+
+ switch (dir) {
+ case DMA_BIDIRECTIONAL:
+ prot = IOMMU_READ | IOMMU_WRITE;
+ break;
+ case DMA_TO_DEVICE:
+ prot = IOMMU_READ;
+ break;
+ case DMA_FROM_DEVICE:
+ prot = IOMMU_WRITE;
+ break;
+ default:
+ prot = 0;
+ }
+
+ return prot;
+}
+
/*
* Map a part of the scatter-gather list into contiguous io address space
*/
int ret = 0;
unsigned int count;
struct scatterlist *s;
+ int prot;
size = PAGE_ALIGN(size);
*handle = DMA_ERROR_CODE;
!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
__dma_page_cpu_to_dev(sg_page(s), s->offset, s->length, dir);
- ret = iommu_map(mapping->domain, iova, phys, len, 0);
+ prot = __dma_direction_to_prot(dir);
+
+ ret = iommu_map(mapping->domain, iova, phys, len, prot);
if (ret < 0)
goto fail;
count += len >> PAGE_SHIFT;
if (dma_addr == DMA_ERROR_CODE)
return dma_addr;
- switch (dir) {
- case DMA_BIDIRECTIONAL:
- prot = IOMMU_READ | IOMMU_WRITE;
- break;
- case DMA_TO_DEVICE:
- prot = IOMMU_READ;
- break;
- case DMA_FROM_DEVICE:
- prot = IOMMU_WRITE;
- break;
- default:
- prot = 0;
- }
+ prot = __dma_direction_to_prot(dir);
ret = iommu_map(mapping->domain, dma_addr, page_to_phys(page), len, prot);
if (ret < 0)
#include <linux/nodemask.h>
#include <linux/initrd.h>
#include <linux/of_fdt.h>
-#include <linux/of_reserved_mem.h>
#include <linux/highmem.h>
#include <linux/gfp.h>
#include <linux/memblock.h>
if (mdesc->reserve)
mdesc->reserve();
- early_init_dt_scan_reserved_mem();
-
/*
* reserve memory for DMA contigouos allocations,
* must come from DMA area inside low memory
{
if (fp->bpf_func != sk_run_filter)
module_free(NULL, fp->bpf_func);
+ kfree(fp);
}
bool
default y
-config DEBUG_STACK_USAGE
- bool "Enable stack utilization instrumentation"
- depends on DEBUG_KERNEL
- help
- Enables the display of the minimum amount of free stack which each
- task has ever had available in the sysrq-T output.
-
config EARLY_PRINTK
bool "Early printk support"
default y
# CONFIG_WIRELESS is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_DEVTMPFS=y
-# CONFIG_BLK_DEV is not set
+CONFIG_BLK_DEV=y
CONFIG_SCSI=y
# CONFIG_SCSI_PROC_FS is not set
CONFIG_BLK_DEV_SD=y
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
+CONFIG_EXT4_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
# CONFIG_EXT3_FS_XATTR is not set
CONFIG_FUSE_FS=y
CONFIG_DEBUG_INFO=y
# CONFIG_FTRACE is not set
CONFIG_ATOMIC64_SELFTEST=y
+CONFIG_VIRTIO_MMIO=y
+CONFIG_VIRTIO_BLK=y
#define get_user(x, ptr) \
({ \
+ __typeof__(*(ptr)) __user *__p = (ptr); \
might_fault(); \
- access_ok(VERIFY_READ, (ptr), sizeof(*(ptr))) ? \
- __get_user((x), (ptr)) : \
+ access_ok(VERIFY_READ, __p, sizeof(*__p)) ? \
+ __get_user((x), __p) : \
((x) = 0, -EFAULT); \
})
#define put_user(x, ptr) \
({ \
+ __typeof__(*(ptr)) __user *__p = (ptr); \
might_fault(); \
- access_ok(VERIFY_WRITE, (ptr), sizeof(*(ptr))) ? \
- __put_user((x), (ptr)) : \
+ access_ok(VERIFY_WRITE, __p, sizeof(*__p)) ? \
+ __put_user((x), __p) : \
-EFAULT; \
})
void fpsimd_flush_thread(void)
{
+ preempt_disable();
memset(¤t->thread.fpsimd_state, 0, sizeof(struct fpsimd_state));
fpsimd_load_state(¤t->thread.fpsimd_state);
+ preempt_enable();
}
#ifdef CONFIG_KERNEL_MODE_NEON
*/
ENTRY(__cpu_flush_user_tlb_range)
vma_vm_mm x3, x2 // get vma->vm_mm
- mmid x3, x3 // get vm_mm->context.id
+ mmid w3, x3 // get vm_mm->context.id
dsb sy
lsr x0, x0, #12 // align address
lsr x1, x1, #12
generic-y += clkdev.h
+generic-y += cputime.h
+generic-y += delay.h
+generic-y += device.h
+generic-y += div64.h
+generic-y += emergency-restart.h
generic-y += exec.h
-generic-y += trace_clock.h
+generic-y += futex.h
+generic-y += irq_regs.h
generic-y += param.h
+generic-y += local.h
+generic-y += local64.h
+generic-y += percpu.h
+generic-y += scatterlist.h
+generic-y += sections.h
+generic-y += topology.h
+generic-y += trace_clock.h
+generic-y += xor.h
+++ /dev/null
-#ifndef __ASM_AVR32_CPUTIME_H
-#define __ASM_AVR32_CPUTIME_H
-
-#include <asm-generic/cputime.h>
-
-#endif /* __ASM_AVR32_CPUTIME_H */
+++ /dev/null
-#include <asm-generic/delay.h>
+++ /dev/null
-/*
- * Arch specific extensions to struct device
- *
- * This file is released under the GPLv2
- */
-#include <asm-generic/device.h>
-
+++ /dev/null
-#ifndef __ASM_AVR32_DIV64_H
-#define __ASM_AVR32_DIV64_H
-
-#include <asm-generic/div64.h>
-
-#endif /* __ASM_AVR32_DIV64_H */
+++ /dev/null
-#ifndef __ASM_AVR32_EMERGENCY_RESTART_H
-#define __ASM_AVR32_EMERGENCY_RESTART_H
-
-#include <asm-generic/emergency-restart.h>
-
-#endif /* __ASM_AVR32_EMERGENCY_RESTART_H */
+++ /dev/null
-#ifndef __ASM_AVR32_FUTEX_H
-#define __ASM_AVR32_FUTEX_H
-
-#include <asm-generic/futex.h>
-
-#endif /* __ASM_AVR32_FUTEX_H */
+++ /dev/null
-#include <asm-generic/irq_regs.h>
+++ /dev/null
-#ifndef __ASM_AVR32_LOCAL_H
-#define __ASM_AVR32_LOCAL_H
-
-#include <asm-generic/local.h>
-
-#endif /* __ASM_AVR32_LOCAL_H */
+++ /dev/null
-#include <asm-generic/local64.h>
+++ /dev/null
-#ifndef __ASM_AVR32_PERCPU_H
-#define __ASM_AVR32_PERCPU_H
-
-#include <asm-generic/percpu.h>
-
-#endif /* __ASM_AVR32_PERCPU_H */
+++ /dev/null
-#ifndef __ASM_AVR32_SCATTERLIST_H
-#define __ASM_AVR32_SCATTERLIST_H
-
-#include <asm-generic/scatterlist.h>
-
-#endif /* __ASM_AVR32_SCATTERLIST_H */
+++ /dev/null
-#ifndef __ASM_AVR32_SECTIONS_H
-#define __ASM_AVR32_SECTIONS_H
-
-#include <asm-generic/sections.h>
-
-#endif /* __ASM_AVR32_SECTIONS_H */
+++ /dev/null
-#ifndef __ASM_AVR32_TOPOLOGY_H
-#define __ASM_AVR32_TOPOLOGY_H
-
-#include <asm-generic/topology.h>
-
-#endif /* __ASM_AVR32_TOPOLOGY_H */
+++ /dev/null
-#ifndef _ASM_XOR_H
-#define _ASM_XOR_H
-
-#include <asm-generic/xor.h>
-
-#endif
memset(childregs, 0, sizeof(struct pt_regs));
p->thread.cpu_context.r0 = arg;
p->thread.cpu_context.r1 = usp; /* fn */
- p->thread.cpu_context.r2 = syscall_return;
+ p->thread.cpu_context.r2 = (unsigned long)syscall_return;
p->thread.cpu_context.pc = (unsigned long)ret_from_kernel_thread;
childregs->sr = MODE_SUPERVISOR;
} else {
case CLOCK_EVT_MODE_SHUTDOWN:
sysreg_write(COMPARE, 0);
pr_debug("%s: stop\n", evdev->name);
- cpu_idle_poll_ctrl(false);
+ if (evdev->mode == CLOCK_EVT_MODE_ONESHOT ||
+ evdev->mode == CLOCK_EVT_MODE_RESUME) {
+ /*
+ * Only disable idle poll if we have forced that
+ * in a previous call.
+ */
+ cpu_idle_poll_ctrl(false);
+ }
break;
default:
BUG();
config BFIN_CPU_FREQ
bool
depends on CPU_FREQ
- select CPU_FREQ_TABLE
default y
config CPU_VOLTAGE
config ETRAXFS
bool "ETRAX-FS-V32"
- select CPU_FREQ_TABLE if CPU_FREQ
help
Support CRIS V32.
config CRIS_MACH_ARTPEC3
bool "ARTPEC-3"
- select CPU_FREQ_TABLE if CPU_FREQ
help
Support Axis ARTPEC-3.
.resource = alchemy_pci_host_res,
};
-static struct __initdata platform_device * mtx1_devs[] = {
+static struct platform_device *mtx1_devs[] __initdata = {
&mtx1_pci_host,
&mtx1_gpio_leds,
&mtx1_wdt,
/*
* MIPS32, MIPS64, VR5500, IDT32332, IDT32334 and maybe a few other
- * pre-MIPS32/MIPS53 processors have CLO, CLZ. The IDT RC64574 is 64-bit and
+ * pre-MIPS32/MIPS64 processors have CLO, CLZ. The IDT RC64574 is 64-bit and
* has CLO and CLZ but not DCLO nor DCLZ. For 64-bit kernels
* cpu_has_clo_clz also indicates the availability of DCLO and DCLZ.
*/
static __always_inline bool arch_static_branch(struct static_key *key)
{
- asm goto("1:\tnop\n\t"
+ asm_volatile_goto("1:\tnop\n\t"
"nop\n\t"
".pushsection __jump_table, \"aw\"\n\t"
WORD_INSN " 1b, %l[l_yes], %0\n\t"
3:
#if defined(CONFIG_CC_STACKPROTECTOR) && !defined(CONFIG_SMP)
- PTR_L t8, __stack_chk_guard
+ PTR_LA t8, __stack_chk_guard
LONG_L t9, TASK_STACK_CANARY(a1)
LONG_S t9, 0(t8)
#endif
1:
#if defined(CONFIG_CC_STACKPROTECTOR) && !defined(CONFIG_SMP)
- PTR_L t8, __stack_chk_guard
+ PTR_LA t8, __stack_chk_guard
LONG_L t9, TASK_STACK_CANARY(a1)
LONG_S t9, 0(t8)
#endif
1:
#if defined(CONFIG_CC_STACKPROTECTOR) && !defined(CONFIG_SMP)
- PTR_L t8, __stack_chk_guard
+ PTR_LA t8, __stack_chk_guard
LONG_L t9, TASK_STACK_CANARY(a1)
LONG_S t9, 0(t8)
#endif
r4k_blast_scache();
else
blast_scache_range(addr, addr + size);
+ preempt_enable();
__sync();
return;
}
*/
blast_inv_scache_range(addr, addr + size);
}
+ preempt_enable();
__sync();
return;
}
{
int i;
- /* Make sure that gcc doesn't leave the empty loop body. */
- for (i = 0; i < nelems; i++, sg++) {
- if (cpu_needs_post_dma_flush(dev))
+ if (cpu_needs_post_dma_flush(dev))
+ for (i = 0; i < nelems; i++, sg++)
__dma_sync(sg_page(sg), sg->offset, sg->length,
direction);
- }
}
static void mips_dma_sync_sg_for_device(struct device *dev,
{
int i;
- /* Make sure that gcc doesn't leave the empty loop body. */
- for (i = 0; i < nelems; i++, sg++) {
- if (!plat_device_is_coherent(dev))
+ if (!plat_device_is_coherent(dev))
+ for (i = 0; i < nelems; i++, sg++)
__dma_sync(sg_page(sg), sg->offset, sg->length,
direction);
- }
}
int mips_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
-
-#include <linux/of.h> /* linux/of.h gets to determine #include ordering */
-
#ifndef _ASM_OPENRISC_PROM_H
#define _ASM_OPENRISC_PROM_H
-#ifdef __KERNEL__
-#ifndef __ASSEMBLY__
-#include <linux/types.h>
-#include <asm/irq.h>
-#include <linux/irqdomain.h>
-#include <linux/atomic.h>
-#include <linux/of_irq.h>
-#include <linux/of_fdt.h>
-#include <linux/of_address.h>
-#include <linux/proc_fs.h>
-#include <linux/platform_device.h>
#define HAVE_ARCH_DEVTREE_FIXUPS
-/* Other Prototypes */
-extern int early_uartlite_console(void);
-
-/* Parse the ibm,dma-window property of an OF node into the busno, phys and
- * size parameters.
- */
-void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop,
- unsigned long *busno, unsigned long *phys, unsigned long *size);
-
-extern void kdump_move_device_tree(void);
-
-/* Get the MAC address */
-extern const void *of_get_mac_address(struct device_node *np);
-
-/**
- * of_irq_map_pci - Resolve the interrupt for a PCI device
- * @pdev: the device whose interrupt is to be resolved
- * @out_irq: structure of_irq filled by this function
- *
- * This function resolves the PCI interrupt for a given PCI device. If a
- * device-node exists for a given pci_dev, it will use normal OF tree
- * walking. If not, it will implement standard swizzling and walk up the
- * PCI tree until an device-node is found, at which point it will finish
- * resolving using the OF tree walking.
- */
-struct pci_dev;
-extern int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq);
-
-#endif /* __ASSEMBLY__ */
-#endif /* __KERNEL__ */
#endif /* _ASM_OPENRISC_PROM_H */
CONFIG_LLC2=m
CONFIG_NET_PKTGEN=m
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
CONFIG_PARPORT=y
CONFIG_LLC2=m
CONFIG_NET_PKTGEN=m
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
CONFIG_BLK_DEV_UMEM=m
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=16
CONFIG_SYSFS_DEPRECATED_V2=y
+CONFIG_BLK_DEV_INITRD=y
CONFIG_SLAB=y
CONFIG_MODULES=y
CONFIG_MODVERSIONS=y
# CONFIG_INET_LRO is not set
CONFIG_IPV6=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
CONFIG_PARPORT=y
CONFIG_PARPORT_PC=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=16
CONFIG_SYSFS_DEPRECATED_V2=y
+CONFIG_BLK_DEV_INITRD=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_EXPERT=y
CONFIG_KALLSYMS_ALL=y
CONFIG_IP_NF_QUEUE=m
CONFIG_NET_PKTGEN=m
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
CONFIG_BLK_DEV_UMEM=m
CONFIG_LLC2=m
CONFIG_DNS_RESOLVER=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_STANDALONE is not set
CONFIG_PARPORT=y
CONFIG_PARPORT_PC=y
CONFIG_INET6_IPCOMP=y
CONFIG_LLC2=m
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
CONFIG_PARPORT=y
/* traps.c */
void parisc_terminate(char *msg, struct pt_regs *regs,
- int code, unsigned long offset);
+ int code, unsigned long offset) __noreturn __cold;
/* mm/fault.c */
void do_page_fault(struct pt_regs *regs, unsigned long code,
ldw MEM_PDC_HI(%r0),%r6
depd %r6, 31, 32, %r3 /* move to upper word */
+ mfctl %cr30,%r6 /* PCX-W2 firmware bug */
+
ldo PDC_PSW(%r0),%arg0 /* 21 */
ldo PDC_PSW_SET_DEFAULTS(%r0),%arg1 /* 2 */
ldo PDC_PSW_WIDE_BIT(%r0),%arg2 /* 2 */
copy %r0,%arg3
stext_pdc_ret:
+ mtctl %r6,%cr30 /* restore task thread info */
+
/* restore rfi target address*/
ldd TI_TASK-THREAD_SZ_ALGN(%sp), %r10
tophys_r1 %r10
IPI_NOP=0,
IPI_RESCHEDULE=1,
IPI_CALL_FUNC,
- IPI_CALL_FUNC_SINGLE,
IPI_CPU_START,
IPI_CPU_STOP,
IPI_CPU_TEST
generic_smp_call_function_interrupt();
break;
- case IPI_CALL_FUNC_SINGLE:
- smp_debug(100, KERN_DEBUG "CPU%d IPI_CALL_FUNC_SINGLE\n", this_cpu);
- generic_smp_call_function_single_interrupt();
- break;
-
case IPI_CPU_START:
smp_debug(100, KERN_DEBUG "CPU%d IPI_CPU_START\n", this_cpu);
break;
void arch_send_call_function_single_ipi(int cpu)
{
- send_IPI_single(cpu, IPI_CALL_FUNC_SINGLE);
+ send_IPI_single(cpu, IPI_CALL_FUNC);
}
/*
do_exit(SIGSEGV);
}
-int syscall_ipi(int (*syscall) (struct pt_regs *), struct pt_regs *regs)
-{
- return syscall(regs);
-}
-
/* gdb uses break 4,8 */
#define GDB_BREAK_INSN 0x10004
static void handle_gdb_break(struct pt_regs *regs, int wot)
else {
/*
- * The kernel should never fault on its own address space.
+ * The kernel should never fault on its own address space,
+ * unless pagefault_disable() was called before.
*/
- if (fault_space == 0)
+ if (fault_space == 0 && !in_atomic())
{
pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC);
parisc_terminate("Kernel Fault", regs, code, fault_address);
-
}
}
#ifdef __KERNEL__
#include <linux/module.h>
#include <linux/compiler.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
#define s_space "%%sr1"
#define d_space "%%sr2"
#else
EXPORT_SYMBOL(copy_from_user);
EXPORT_SYMBOL(copy_in_user);
EXPORT_SYMBOL(memcpy);
+
+long probe_kernel_read(void *dst, const void *src, size_t size)
+{
+ unsigned long addr = (unsigned long)src;
+
+ if (size < 0 || addr < PAGE_SIZE)
+ return -EFAULT;
+
+ /* check for I/O space F_EXTEND(0xfff00000) access as well? */
+
+ return __probe_kernel_read(dst, src, size);
+}
+
#endif
unsigned long address)
{
struct vm_area_struct *vma, *prev_vma;
- struct task_struct *tsk = current;
- struct mm_struct *mm = tsk->mm;
+ struct task_struct *tsk;
+ struct mm_struct *mm;
unsigned long acc_type;
int fault;
- unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
+ unsigned int flags;
- if (in_atomic() || !mm)
+ if (in_atomic())
goto no_context;
+ tsk = current;
+ mm = tsk->mm;
+ if (!mm)
+ goto no_context;
+
+ flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
if (user_mode(regs))
flags |= FAULT_FLAG_USER;
+
+ acc_type = parisc_acctyp(code, regs->iir);
if (acc_type & VM_WRITE)
flags |= FAULT_FLAG_WRITE;
retry:
good_area:
- acc_type = parisc_acctyp(code,regs->iir);
-
if ((vma->vm_flags & acc_type) != acc_type)
goto bad_area;
src-wlib-$(CONFIG_PPC_82xx) += pq2.c fsl-soc.c planetcore.c
src-wlib-$(CONFIG_EMBEDDED6xx) += mv64x60.c mv64x60_i2c.c ugecon.c
-src-plat-y := of.c
+src-plat-y := of.c epapr.c
src-plat-$(CONFIG_40x) += fixed-head.S ep405.c cuboot-hotfoot.c \
treeboot-walnut.c cuboot-acadia.c \
cuboot-kilauea.c simpleboot.c \
prpmc2800.c
src-plat-$(CONFIG_AMIGAONE) += cuboot-amigaone.c
src-plat-$(CONFIG_PPC_PS3) += ps3-head.S ps3-hvcall.S ps3.c
-src-plat-$(CONFIG_EPAPR_BOOT) += epapr.c
+src-plat-$(CONFIG_EPAPR_BOOT) += epapr.c epapr-wrapper.c
src-wlib := $(sort $(src-wlib-y))
src-plat := $(sort $(src-plat-y))
--- /dev/null
+extern void epapr_platform_init(unsigned long r3, unsigned long r4,
+ unsigned long r5, unsigned long r6,
+ unsigned long r7);
+
+void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
+ unsigned long r6, unsigned long r7)
+{
+ epapr_platform_init(r3, r4, r5, r6, r7);
+}
fdt_addr, fdt_totalsize((void *)fdt_addr), ima_size);
}
-void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7)
+void epapr_platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
+ unsigned long r6, unsigned long r7)
{
epapr_magic = r6;
ima_size = r7;
static unsigned long claim_base;
+void epapr_platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
+ unsigned long r6, unsigned long r7);
+
static void *of_try_claim(unsigned long size)
{
unsigned long addr = 0;
}
}
-void platform_init(unsigned long a1, unsigned long a2, void *promptr)
+static void of_platform_init(unsigned long a1, unsigned long a2, void *promptr)
{
platform_ops.image_hdr = of_image_hdr;
platform_ops.malloc = of_try_claim;
loader_info.initrd_size = a2;
}
}
+
+void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
+ unsigned long r6, unsigned long r7)
+{
+ /* Detect OF vs. ePAPR boot */
+ if (r5)
+ of_platform_init(r3, r4, (void *)r5);
+ else
+ epapr_platform_init(r3, r4, r5, r6, r7);
+}
+
case "$platform" in
pseries)
- platformo=$object/of.o
+ platformo="$object/of.o $object/epapr.o"
link_address='0x4000000'
;;
maple)
- platformo=$object/of.o
+ platformo="$object/of.o $object/epapr.o"
link_address='0x400000'
;;
pmac|chrp)
- platformo=$object/of.o
+ platformo="$object/of.o $object/epapr.o"
;;
coff)
- platformo="$object/crt0.o $object/of.o"
+ platformo="$object/crt0.o $object/of.o $object/epapr.o"
lds=$object/zImage.coff.lds
link_address='0x500000'
pie=
platformo="$object/treeboot-iss4xx.o"
;;
epapr)
+ platformo="$object/epapr.o $object/epapr-wrapper.o"
link_address='0x20000000'
pie=-pie
;;
extern void irq_ctx_init(void);
extern void call_do_softirq(struct thread_info *tp);
-extern int call_handle_irq(int irq, void *p1,
- struct thread_info *tp, void *func);
+extern void call_do_irq(struct pt_regs *regs, struct thread_info *tp);
extern void do_IRQ(struct pt_regs *regs);
+extern void __do_irq(struct pt_regs *regs);
int irq_choose_cpu(const struct cpumask *mask);
static __always_inline bool arch_static_branch(struct static_key *key)
{
- asm goto("1:\n\t"
+ asm_volatile_goto("1:\n\t"
"nop\n\t"
".pushsection __jump_table, \"aw\"\n\t"
JUMP_ENTRY_TYPE "1b, %l[l_yes], %c0\n\t"
struct thread_struct {
unsigned long ksp; /* Kernel stack pointer */
- unsigned long ksp_limit; /* if ksp <= ksp_limit stack overflow */
-
#ifdef CONFIG_PPC64
unsigned long ksp_vsid;
#endif
#endif
#ifdef CONFIG_PPC32
void *pgdir; /* root of page-table tree */
+ unsigned long ksp_limit; /* if ksp <= ksp_limit stack overflow */
#endif
#ifdef CONFIG_PPC_ADV_DEBUG_REGS
/*
#else
#define INIT_THREAD { \
.ksp = INIT_SP, \
- .ksp_limit = INIT_SP_LIMIT, \
.regs = (struct pt_regs *)INIT_SP - 1, /* XXX bogus, I think */ \
.fs = KERNEL_DS, \
.fpr = {{0}}, \
DEFINE(TASKTHREADPPR, offsetof(struct task_struct, thread.ppr));
#else
DEFINE(THREAD_INFO, offsetof(struct task_struct, stack));
+ DEFINE(THREAD_INFO_GAP, _ALIGN_UP(sizeof(struct thread_info), 16));
+ DEFINE(KSP_LIMIT, offsetof(struct thread_struct, ksp_limit));
#endif /* CONFIG_PPC64 */
DEFINE(KSP, offsetof(struct thread_struct, ksp));
- DEFINE(KSP_LIMIT, offsetof(struct thread_struct, ksp_limit));
DEFINE(PT_REGS, offsetof(struct thread_struct, regs));
#ifdef CONFIG_BOOKE
DEFINE(THREAD_NORMSAVES, offsetof(struct thread_struct, normsave[0]));
/* number of bytes needed for the bitmap */
sz = BITS_TO_LONGS(tbl->it_size) * sizeof(unsigned long);
- page = alloc_pages_node(nid, GFP_ATOMIC, get_order(sz));
+ page = alloc_pages_node(nid, GFP_KERNEL, get_order(sz));
if (!page)
panic("iommu_init_table: Can't allocate %ld bytes\n", sz);
tbl->it_map = page_address(page);
}
#endif
-static inline void handle_one_irq(unsigned int irq)
-{
- struct thread_info *curtp, *irqtp;
- unsigned long saved_sp_limit;
- struct irq_desc *desc;
-
- desc = irq_to_desc(irq);
- if (!desc)
- return;
-
- /* Switch to the irq stack to handle this */
- curtp = current_thread_info();
- irqtp = hardirq_ctx[smp_processor_id()];
-
- if (curtp == irqtp) {
- /* We're already on the irq stack, just handle it */
- desc->handle_irq(irq, desc);
- return;
- }
-
- saved_sp_limit = current->thread.ksp_limit;
-
- irqtp->task = curtp->task;
- irqtp->flags = 0;
-
- /* Copy the softirq bits in preempt_count so that the
- * softirq checks work in the hardirq context. */
- irqtp->preempt_count = (irqtp->preempt_count & ~SOFTIRQ_MASK) |
- (curtp->preempt_count & SOFTIRQ_MASK);
-
- current->thread.ksp_limit = (unsigned long)irqtp +
- _ALIGN_UP(sizeof(struct thread_info), 16);
-
- call_handle_irq(irq, desc, irqtp, desc->handle_irq);
- current->thread.ksp_limit = saved_sp_limit;
- irqtp->task = NULL;
-
- /* Set any flag that may have been set on the
- * alternate stack
- */
- if (irqtp->flags)
- set_bits(irqtp->flags, &curtp->flags);
-}
-
static inline void check_stack_overflow(void)
{
#ifdef CONFIG_DEBUG_STACKOVERFLOW
#endif
}
-void do_IRQ(struct pt_regs *regs)
+void __do_irq(struct pt_regs *regs)
{
- struct pt_regs *old_regs = set_irq_regs(regs);
+ struct irq_desc *desc;
unsigned int irq;
irq_enter();
*/
irq = ppc_md.get_irq();
- /* We can hard enable interrupts now */
+ /* We can hard enable interrupts now to allow perf interrupts */
may_hard_irq_enable();
/* And finally process it */
- if (irq != NO_IRQ)
- handle_one_irq(irq);
- else
+ if (unlikely(irq == NO_IRQ))
__get_cpu_var(irq_stat).spurious_irqs++;
+ else {
+ desc = irq_to_desc(irq);
+ if (likely(desc))
+ desc->handle_irq(irq, desc);
+ }
trace_irq_exit(regs);
irq_exit();
+}
+
+void do_IRQ(struct pt_regs *regs)
+{
+ struct pt_regs *old_regs = set_irq_regs(regs);
+ struct thread_info *curtp, *irqtp, *sirqtp;
+
+ /* Switch to the irq stack to handle this */
+ curtp = current_thread_info();
+ irqtp = hardirq_ctx[raw_smp_processor_id()];
+ sirqtp = softirq_ctx[raw_smp_processor_id()];
+
+ /* Already there ? */
+ if (unlikely(curtp == irqtp || curtp == sirqtp)) {
+ __do_irq(regs);
+ set_irq_regs(old_regs);
+ return;
+ }
+
+ /* Prepare the thread_info in the irq stack */
+ irqtp->task = curtp->task;
+ irqtp->flags = 0;
+
+ /* Copy the preempt_count so that the [soft]irq checks work. */
+ irqtp->preempt_count = curtp->preempt_count;
+
+ /* Switch stack and call */
+ call_do_irq(regs, irqtp);
+
+ /* Restore stack limit */
+ irqtp->task = NULL;
+
+ /* Copy back updates to the thread_info */
+ if (irqtp->flags)
+ set_bits(irqtp->flags, &curtp->flags);
+
set_irq_regs(old_regs);
}
memset((void *)softirq_ctx[i], 0, THREAD_SIZE);
tp = softirq_ctx[i];
tp->cpu = i;
- tp->preempt_count = 0;
memset((void *)hardirq_ctx[i], 0, THREAD_SIZE);
tp = hardirq_ctx[i];
tp->cpu = i;
- tp->preempt_count = HARDIRQ_OFFSET;
}
}
static inline void do_softirq_onstack(void)
{
struct thread_info *curtp, *irqtp;
- unsigned long saved_sp_limit = current->thread.ksp_limit;
curtp = current_thread_info();
irqtp = softirq_ctx[smp_processor_id()];
irqtp->task = curtp->task;
irqtp->flags = 0;
- current->thread.ksp_limit = (unsigned long)irqtp +
- _ALIGN_UP(sizeof(struct thread_info), 16);
call_do_softirq(irqtp);
- current->thread.ksp_limit = saved_sp_limit;
irqtp->task = NULL;
/* Set any flag that may have been set on the
.text
+/*
+ * We store the saved ksp_limit in the unused part
+ * of the STACK_FRAME_OVERHEAD
+ */
_GLOBAL(call_do_softirq)
mflr r0
stw r0,4(r1)
+ lwz r10,THREAD+KSP_LIMIT(r2)
+ addi r11,r3,THREAD_INFO_GAP
stwu r1,THREAD_SIZE-STACK_FRAME_OVERHEAD(r3)
mr r1,r3
+ stw r10,8(r1)
+ stw r11,THREAD+KSP_LIMIT(r2)
bl __do_softirq
+ lwz r10,8(r1)
lwz r1,0(r1)
lwz r0,4(r1)
+ stw r10,THREAD+KSP_LIMIT(r2)
mtlr r0
blr
-_GLOBAL(call_handle_irq)
+_GLOBAL(call_do_irq)
mflr r0
stw r0,4(r1)
- mtctr r6
- stwu r1,THREAD_SIZE-STACK_FRAME_OVERHEAD(r5)
- mr r1,r5
- bctrl
+ lwz r10,THREAD+KSP_LIMIT(r2)
+ addi r11,r3,THREAD_INFO_GAP
+ stwu r1,THREAD_SIZE-STACK_FRAME_OVERHEAD(r4)
+ mr r1,r4
+ stw r10,8(r1)
+ stw r11,THREAD+KSP_LIMIT(r2)
+ bl __do_irq
+ lwz r10,8(r1)
lwz r1,0(r1)
lwz r0,4(r1)
+ stw r10,THREAD+KSP_LIMIT(r2)
mtlr r0
blr
mtlr r0
blr
-_GLOBAL(call_handle_irq)
- ld r8,0(r6)
+_GLOBAL(call_do_irq)
mflr r0
std r0,16(r1)
- mtctr r8
- stdu r1,THREAD_SIZE-STACK_FRAME_OVERHEAD(r5)
- mr r1,r5
- bctrl
+ stdu r1,THREAD_SIZE-STACK_FRAME_OVERHEAD(r4)
+ mr r1,r4
+ bl .__do_irq
ld r1,0(r1)
ld r0,16(r1)
mtlr r0
kregs = (struct pt_regs *) sp;
sp -= STACK_FRAME_OVERHEAD;
p->thread.ksp = sp;
+#ifdef CONFIG_PPC32
p->thread.ksp_limit = (unsigned long)task_stack_page(p) +
_ALIGN_UP(sizeof(struct thread_info), 16);
-
+#endif
#ifdef CONFIG_HAVE_HW_BREAKPOINT
p->thread.ptrace_bps[0] = NULL;
#endif
static cell_t __initdata regbuf[1024];
+static bool rtas_has_query_cpu_stopped;
+
/*
* Error results ... some OF calls will return "-1" on error, some
prom_setprop(rtas_node, "/rtas", "linux,rtas-entry",
&val, sizeof(val));
+ /* Check if it supports "query-cpu-stopped-state" */
+ if (prom_getprop(rtas_node, "query-cpu-stopped-state",
+ &val, sizeof(val)) != PROM_ERROR)
+ rtas_has_query_cpu_stopped = true;
+
#if defined(CONFIG_PPC_POWERNV) && defined(__BIG_ENDIAN__)
/* PowerVN takeover hack */
prom_rtas_data = base;
= (void *) LOW_ADDR(__secondary_hold_acknowledge);
unsigned long secondary_hold = LOW_ADDR(__secondary_hold);
+ /*
+ * On pseries, if RTAS supports "query-cpu-stopped-state",
+ * we skip this stage, the CPUs will be started by the
+ * kernel using RTAS.
+ */
+ if ((of_platform == PLATFORM_PSERIES ||
+ of_platform == PLATFORM_PSERIES_LPAR) &&
+ rtas_has_query_cpu_stopped) {
+ prom_printf("prom_hold_cpus: skipped\n");
+ return;
+ }
+
prom_debug("prom_hold_cpus: start...\n");
prom_debug(" 1) spinloop = 0x%x\n", (unsigned long)spinloop);
prom_debug(" 1) *spinloop = 0x%x\n", *spinloop);
* On non-powermacs, put all CPUs in spin-loops.
*
* PowerMacs use a different mechanism to spin CPUs
+ *
+ * (This must be done after instanciating RTAS)
*/
if (of_platform != PLATFORM_POWERMAC &&
of_platform != PLATFORM_OPAL)
smp_ops->cpu_die(cpu);
}
-static DEFINE_MUTEX(powerpc_cpu_hotplug_driver_mutex);
-
-void cpu_hotplug_driver_lock()
-{
- mutex_lock(&powerpc_cpu_hotplug_driver_mutex);
-}
-
-void cpu_hotplug_driver_unlock()
-{
- mutex_unlock(&powerpc_cpu_hotplug_driver_mutex);
-}
-
void cpu_die(void)
{
if (ppc_md.cpu_die)
#include <asm/machdep.h>
#include <asm/smp.h>
#include <asm/pmc.h>
+#include <asm/firmware.h>
#include "cacheinfo.h"
SYSFS_PMCSETUP(dscr, SPRN_DSCR);
SYSFS_PMCSETUP(pir, SPRN_PIR);
+/*
+ Lets only enable read for phyp resources and
+ enable write when needed with a separate function.
+ Lets be conservative and default to pseries.
+*/
static DEVICE_ATTR(mmcra, 0600, show_mmcra, store_mmcra);
static DEVICE_ATTR(spurr, 0400, show_spurr, NULL);
static DEVICE_ATTR(dscr, 0600, show_dscr, store_dscr);
-static DEVICE_ATTR(purr, 0600, show_purr, store_purr);
+static DEVICE_ATTR(purr, 0400, show_purr, store_purr);
static DEVICE_ATTR(pir, 0400, show_pir, NULL);
unsigned long dscr_default = 0;
EXPORT_SYMBOL(dscr_default);
+static void add_write_permission_dev_attr(struct device_attribute *attr)
+{
+ attr->attr.mode |= 0200;
+}
+
static ssize_t show_dscr_default(struct device *dev,
struct device_attribute *attr, char *buf)
{
if (cpu_has_feature(CPU_FTR_MMCRA))
device_create_file(s, &dev_attr_mmcra);
- if (cpu_has_feature(CPU_FTR_PURR))
+ if (cpu_has_feature(CPU_FTR_PURR)) {
+ if (!firmware_has_feature(FW_FEATURE_LPAR))
+ add_write_permission_dev_attr(&dev_attr_purr);
device_create_file(s, &dev_attr_purr);
+ }
if (cpu_has_feature(CPU_FTR_SPURR))
device_create_file(s, &dev_attr_spurr);
TABORT(R3)
blr
+ .section ".toc","aw"
+DSCR_DEFAULT:
+ .tc dscr_default[TC],dscr_default
+
+ .section ".text"
/* void tm_reclaim(struct thread_struct *thread,
* unsigned long orig_msr,
mr r15, r14
ori r15, r15, MSR_FP
li r16, MSR_RI
+ ori r16, r16, MSR_EE /* IRQs hard off */
andc r15, r15, r16
oris r15, r15, MSR_VEC@h
#ifdef CONFIG_VSX
std r1, PACATMSCRATCH(r13)
ld r1, PACAR1(r13)
+ /* Store the PPR in r11 and reset to decent value */
+ std r11, GPR11(r1) /* Temporary stash */
+ mfspr r11, SPRN_PPR
+ HMT_MEDIUM
+
/* Now get some more GPRS free */
std r7, GPR7(r1) /* Temporary stash */
std r12, GPR12(r1) /* '' '' '' */
ld r12, STACK_PARAM(0)(r1) /* Param 0, thread_struct * */
+ std r11, THREAD_TM_PPR(r12) /* Store PPR and free r11 */
+
addi r7, r12, PT_CKPT_REGS /* Thread's ckpt_regs */
/* Make r7 look like an exception frame so that we
SAVE_GPR(0, r7) /* user r0 */
SAVE_GPR(2, r7) /* user r2 */
SAVE_4GPRS(3, r7) /* user r3-r6 */
- SAVE_4GPRS(8, r7) /* user r8-r11 */
+ SAVE_GPR(8, r7) /* user r8 */
+ SAVE_GPR(9, r7) /* user r9 */
+ SAVE_GPR(10, r7) /* user r10 */
ld r3, PACATMSCRATCH(r13) /* user r1 */
ld r4, GPR7(r1) /* user r7 */
- ld r5, GPR12(r1) /* user r12 */
- GET_SCRATCH0(6) /* user r13 */
+ ld r5, GPR11(r1) /* user r11 */
+ ld r6, GPR12(r1) /* user r12 */
+ GET_SCRATCH0(8) /* user r13 */
std r3, GPR1(r7)
std r4, GPR7(r7)
- std r5, GPR12(r7)
- std r6, GPR13(r7)
+ std r5, GPR11(r7)
+ std r6, GPR12(r7)
+ std r8, GPR13(r7)
SAVE_NVGPRS(r7) /* user r14-r31 */
std r6, _XER(r7)
- /* ******************** TAR, PPR, DSCR ********** */
+ /* ******************** TAR, DSCR ********** */
mfspr r3, SPRN_TAR
- mfspr r4, SPRN_PPR
- mfspr r5, SPRN_DSCR
+ mfspr r4, SPRN_DSCR
std r3, THREAD_TM_TAR(r12)
- std r4, THREAD_TM_PPR(r12)
- std r5, THREAD_TM_DSCR(r12)
+ std r4, THREAD_TM_DSCR(r12)
/* MSR and flags: We don't change CRs, and we don't need to alter
* MSR.
std r3, THREAD_TM_TFHAR(r12)
std r4, THREAD_TM_TFIAR(r12)
- /* AMR and PPR are checkpointed too, but are unsupported by Linux. */
+ /* AMR is checkpointed too, but is unsupported by Linux. */
/* Restore original MSR/IRQ state & clear TM mode */
ld r14, TM_FRAME_L0(r1) /* Orig MSR */
mtcr r4
mtlr r0
ld r2, 40(r1)
+
+ /* Load system default DSCR */
+ ld r4, DSCR_DEFAULT@toc(r2)
+ ld r0, 0(r4)
+ mtspr SPRN_DSCR, r0
+
blr
restore_gprs:
- /* ******************** TAR, PPR, DSCR ********** */
- ld r4, THREAD_TM_TAR(r3)
- ld r5, THREAD_TM_PPR(r3)
- ld r6, THREAD_TM_DSCR(r3)
+ /* ******************** CR,LR,CCR,MSR ********** */
+ ld r4, _CTR(r7)
+ ld r5, _LINK(r7)
+ ld r6, _CCR(r7)
+ ld r8, _XER(r7)
- mtspr SPRN_TAR, r4
- mtspr SPRN_PPR, r5
- mtspr SPRN_DSCR, r6
+ mtctr r4
+ mtlr r5
+ mtcr r6
+ mtxer r8
- /* ******************** CR,LR,CCR,MSR ********** */
- ld r3, _CTR(r7)
- ld r4, _LINK(r7)
- ld r5, _CCR(r7)
- ld r6, _XER(r7)
+ /* ******************** TAR ******************** */
+ ld r4, THREAD_TM_TAR(r3)
+ mtspr SPRN_TAR, r4
- mtctr r3
- mtlr r4
- mtcr r5
- mtxer r6
+ /* Load up the PPR and DSCR in GPRs only at this stage */
+ ld r5, THREAD_TM_DSCR(r3)
+ ld r6, THREAD_TM_PPR(r3)
/* Clear the MSR RI since we are about to change R1. EE is already off
*/
mtmsrd r4, 1
REST_4GPRS(0, r7) /* GPR0-3 */
- REST_GPR(4, r7) /* GPR4-6 */
- REST_GPR(5, r7)
- REST_GPR(6, r7)
+ REST_GPR(4, r7) /* GPR4 */
REST_4GPRS(8, r7) /* GPR8-11 */
REST_2GPRS(12, r7) /* GPR12-13 */
REST_NVGPRS(r7) /* GPR14-31 */
- ld r7, GPR7(r7) /* GPR7 */
+ /* Load up PPR and DSCR here so we don't run with user values for long
+ */
+ mtspr SPRN_DSCR, r5
+ mtspr SPRN_PPR, r6
+
+ REST_GPR(5, r7) /* GPR5-7 */
+ REST_GPR(6, r7)
+ ld r7, GPR7(r7)
/* Commit register state as checkpointed state: */
TRECHKPT
+ HMT_MEDIUM
+
/* Our transactional state has now changed.
*
* Now just get out of here. Transactional (current) state will be
mtcr r4
mtlr r0
ld r2, 40(r1)
+
+ /* Load system default DSCR */
+ ld r4, DSCR_DEFAULT@toc(r2)
+ ld r0, 0(r4)
+ mtspr SPRN_DSCR, r0
+
blr
/* ****************************************************************** */
const char *cp;
dn = dev->of_node;
- if (!dn)
- return -ENODEV;
+ if (!dn) {
+ strcat(buf, "\n");
+ return strlen(buf);
+ }
cp = of_get_property(dn, "compatible", NULL);
- if (!cp)
- return -ENODEV;
+ if (!cp) {
+ strcat(buf, "\n");
+ return strlen(buf);
+ }
return sprintf(buf, "vio:T%sS%s\n", vio_dev->type, cp);
}
BEGIN_FTR_SECTION
mfspr r8, SPRN_DSCR
ld r7, HSTATE_DSCR(r13)
- std r8, VCPU_DSCR(r7)
+ std r8, VCPU_DSCR(r9)
mtspr SPRN_DSCR, r7
END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
unsigned long hva;
int pfnmap = 0;
int tsize = BOOK3E_PAGESZ_4K;
+ int ret = 0;
+ unsigned long mmu_seq;
+ struct kvm *kvm = vcpu_e500->vcpu.kvm;
+
+ /* used to check for invalidations in progress */
+ mmu_seq = kvm->mmu_notifier_seq;
+ smp_rmb();
/*
* Translate guest physical to true physical, acquiring
gvaddr &= ~((tsize_pages << PAGE_SHIFT) - 1);
}
+ spin_lock(&kvm->mmu_lock);
+ if (mmu_notifier_retry(kvm, mmu_seq)) {
+ ret = -EAGAIN;
+ goto out;
+ }
+
kvmppc_e500_ref_setup(ref, gtlbe, pfn);
kvmppc_e500_setup_stlbe(&vcpu_e500->vcpu, gtlbe, tsize,
/* Clear i-cache for new pages */
kvmppc_mmu_flush_icache(pfn);
+out:
+ spin_unlock(&kvm->mmu_lock);
+
/* Drop refcount on page, so that mmu notifiers can clear it */
kvm_release_pfn_clean(pfn);
- return 0;
+ return ret;
}
/* XXX only map the one-one case, for now use TLB0 */
blr
- .macro source
+ .macro srcnr
100:
.section __ex_table,"a"
.align 3
- .llong 100b,.Lsrc_error
+ .llong 100b,.Lsrc_error_nr
.previous
.endm
- .macro dest
+ .macro source
+150:
+ .section __ex_table,"a"
+ .align 3
+ .llong 150b,.Lsrc_error
+ .previous
+ .endm
+
+ .macro dstnr
200:
.section __ex_table,"a"
.align 3
- .llong 200b,.Ldest_error
+ .llong 200b,.Ldest_error_nr
+ .previous
+ .endm
+
+ .macro dest
+250:
+ .section __ex_table,"a"
+ .align 3
+ .llong 250b,.Ldest_error
.previous
.endm
rldicl. r6,r3,64-1,64-2 /* r6 = (r3 & 0x3) >> 1 */
beq .Lcopy_aligned
- li r7,4
- sub r6,r7,r6
+ li r9,4
+ sub r6,r9,r6
mtctr r6
1:
-source; lhz r6,0(r3) /* align to doubleword */
+srcnr; lhz r6,0(r3) /* align to doubleword */
subi r5,r5,2
addi r3,r3,2
adde r0,r0,r6
-dest; sth r6,0(r4)
+dstnr; sth r6,0(r4)
addi r4,r4,2
bdnz 1b
mtctr r6
3:
-source; ld r6,0(r3)
+srcnr; ld r6,0(r3)
addi r3,r3,8
adde r0,r0,r6
-dest; std r6,0(r4)
+dstnr; std r6,0(r4)
addi r4,r4,8
bdnz 3b
srdi. r6,r5,2
beq .Lcopy_tail_halfword
-source; lwz r6,0(r3)
+srcnr; lwz r6,0(r3)
addi r3,r3,4
adde r0,r0,r6
-dest; stw r6,0(r4)
+dstnr; stw r6,0(r4)
addi r4,r4,4
subi r5,r5,4
srdi. r6,r5,1
beq .Lcopy_tail_byte
-source; lhz r6,0(r3)
+srcnr; lhz r6,0(r3)
addi r3,r3,2
adde r0,r0,r6
-dest; sth r6,0(r4)
+dstnr; sth r6,0(r4)
addi r4,r4,2
subi r5,r5,2
andi. r6,r5,1
beq .Lcopy_finish
-source; lbz r6,0(r3)
+srcnr; lbz r6,0(r3)
sldi r9,r6,8 /* Pad the byte out to 16 bits */
adde r0,r0,r9
-dest; stb r6,0(r4)
+dstnr; stb r6,0(r4)
.Lcopy_finish:
addze r0,r0 /* add in final carry */
blr
.Lsrc_error:
+ ld r14,STK_REG(R14)(r1)
+ ld r15,STK_REG(R15)(r1)
+ ld r16,STK_REG(R16)(r1)
+ addi r1,r1,STACKFRAMESIZE
+.Lsrc_error_nr:
cmpdi 0,r7,0
beqlr
li r6,-EFAULT
blr
.Ldest_error:
+ ld r14,STK_REG(R14)(r1)
+ ld r15,STK_REG(R15)(r1)
+ ld r16,STK_REG(R16)(r1)
+ addi r1,r1,STACKFRAMESIZE
+.Ldest_error_nr:
cmpdi 0,r8,0
beqlr
li r6,-EFAULT
*/
if ((ra == 1) && !(regs->msr & MSR_PR) \
&& (val3 >= (regs->gpr[1] - STACK_INT_FRAME_SIZE))) {
+#ifdef CONFIG_PPC32
/*
* Check if we will touch kernel sack overflow
*/
err = -EINVAL;
break;
}
-
+#endif /* CONFIG_PPC32 */
/*
* Check if we already set since that means we'll
* lose the previous value.
{
}
+void register_page_bootmem_memmap(unsigned long section_nr,
+ struct page *start_page, unsigned long size)
+{
+}
#endif /* CONFIG_SPARSEMEM_VMEMMAP */
}
#endif /* ! CONFIG_NEED_MULTIPLE_NODES */
+static void __init register_page_bootmem_info(void)
+{
+ int i;
+
+ for_each_online_node(i)
+ register_page_bootmem_info_node(NODE_DATA(i));
+}
+
void __init mem_init(void)
{
#ifdef CONFIG_SWIOTLB
swiotlb_init(0);
#endif
+ register_page_bootmem_info();
high_memory = (void *) __va(max_low_pfn * PAGE_SIZE);
set_max_mapnr(max_pfn);
free_all_bootmem();
{
if (fp->bpf_func != sk_run_filter)
module_free(NULL, fp->bpf_func);
+ kfree(fp);
}
#define MMCR1_UNIT_SHIFT(pmc) (60 - (4 * ((pmc) - 1)))
#define MMCR1_COMBINE_SHIFT(pmc) (35 - ((pmc) - 1))
#define MMCR1_PMCSEL_SHIFT(pmc) (24 - (((pmc) - 1)) * 8)
+#define MMCR1_FAB_SHIFT 36
#define MMCR1_DC_QUAL_SHIFT 47
#define MMCR1_IC_QUAL_SHIFT 46
* the threshold bits are used for the match value.
*/
if (event_is_fab_match(event[i])) {
- mmcr1 |= (event[i] >> EVENT_THR_CTL_SHIFT) &
- EVENT_THR_CTL_MASK;
+ mmcr1 |= ((event[i] >> EVENT_THR_CTL_SHIFT) &
+ EVENT_THR_CTL_MASK) << MMCR1_FAB_SHIFT;
} else {
val = (event[i] >> EVENT_THR_CTL_SHIFT) & EVENT_THR_CTL_MASK;
mmcra |= val << MMCRA_THR_CTL_SHIFT;
unsigned long drc_index;
int rc;
- cpu_hotplug_driver_lock();
rc = strict_strtoul(buf, 0, &drc_index);
- if (rc) {
- rc = -EINVAL;
- goto out;
- }
+ if (rc)
+ return -EINVAL;
parent = of_find_node_by_path("/cpus");
- if (!parent) {
- rc = -ENODEV;
- goto out;
- }
+ if (!parent)
+ return -ENODEV;
dn = dlpar_configure_connector(drc_index, parent);
- if (!dn) {
- rc = -EINVAL;
- goto out;
- }
+ if (!dn)
+ return -EINVAL;
of_node_put(parent);
rc = dlpar_acquire_drc(drc_index);
if (rc) {
dlpar_free_cc_nodes(dn);
- rc = -EINVAL;
- goto out;
+ return -EINVAL;
}
rc = dlpar_attach_node(dn);
if (rc) {
dlpar_release_drc(drc_index);
dlpar_free_cc_nodes(dn);
- goto out;
+ return rc;
}
rc = dlpar_online_cpu(dn);
-out:
- cpu_hotplug_driver_unlock();
+ if (rc)
+ return rc;
- return rc ? rc : count;
+ return count;
}
static int dlpar_offline_cpu(struct device_node *dn)
return -EINVAL;
}
- cpu_hotplug_driver_lock();
rc = dlpar_offline_cpu(dn);
if (rc) {
of_node_put(dn);
- rc = -EINVAL;
- goto out;
+ return -EINVAL;
}
rc = dlpar_release_drc(*drc_index);
if (rc) {
of_node_put(dn);
- goto out;
+ return rc;
}
rc = dlpar_detach_node(dn);
if (rc) {
dlpar_acquire_drc(*drc_index);
- goto out;
+ return rc;
}
of_node_put(dn);
-out:
- cpu_hotplug_driver_unlock();
- return rc ? rc : count;
+
+ return count;
}
static int __init pseries_dlpar_init(void)
alloc_bootmem_cpumask_var(&of_spin_mask);
- /* Mark threads which are still spinning in hold loops. */
- if (cpu_has_feature(CPU_FTR_SMT)) {
- for_each_present_cpu(i) {
- if (cpu_thread_in_core(i) == 0)
- cpumask_set_cpu(i, of_spin_mask);
- }
- } else {
- cpumask_copy(of_spin_mask, cpu_present_mask);
+ /*
+ * Mark threads which are still spinning in hold loops
+ *
+ * We know prom_init will not have started them if RTAS supports
+ * query-cpu-stopped-state.
+ */
+ if (rtas_token("query-cpu-stopped-state") == RTAS_UNKNOWN_SERVICE) {
+ if (cpu_has_feature(CPU_FTR_SMT)) {
+ for_each_present_cpu(i) {
+ if (cpu_thread_in_core(i) == 0)
+ cpumask_set_cpu(i, of_spin_mask);
+ }
+ } else
+ cpumask_copy(of_spin_mask, cpu_present_mask);
+
+ cpumask_clear_cpu(boot_cpuid, of_spin_mask);
}
- cpumask_clear_cpu(boot_cpuid, of_spin_mask);
-
/* Non-lpar has additional take/give timebase */
if (rtas_token("freeze-time-base") != RTAS_UNKNOWN_SERVICE) {
smp_ops->give_timebase = rtas_give_timebase;
select ARCH_INLINE_WRITE_UNLOCK_IRQ
select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE
select ARCH_SAVE_PAGE_KEYS if HIBERNATION
+ select ARCH_USE_CMPXCHG_LOCKREF
select ARCH_WANT_IPC_PARSE_VERSION
select BUILDTIME_EXTABLE_SORT
select CLONE_BACKWARDS2
select GENERIC_TIME_VSYSCALL_OLD
select HAVE_ALIGNED_STRUCT_PAGE if SLUB
select HAVE_ARCH_JUMP_LABEL if !MARCH_G5
- select HAVE_ARCH_MUTEX_CPU_RELAX
select HAVE_ARCH_SECCOMP_FILTER
select HAVE_ARCH_TRACEHOOK
select HAVE_ARCH_TRANSPARENT_HUGEPAGE if 64BIT
static __always_inline bool arch_static_branch(struct static_key *key)
{
- asm goto("0: brcl 0,0\n"
+ asm_volatile_goto("0: brcl 0,0\n"
".pushsection __jump_table, \"aw\"\n"
ASM_ALIGN "\n"
ASM_PTR " 0b, %l[label], %0\n"
*/
#include <asm-generic/mutex-dec.h>
-
-#define arch_mutex_cpu_relax() barrier()
static inline void pgste_set_pte(pte_t *ptep, pte_t entry)
{
- if (!MACHINE_HAS_ESOP && (pte_val(entry) & _PAGE_WRITE)) {
+ if (!MACHINE_HAS_ESOP &&
+ (pte_val(entry) & _PAGE_PRESENT) &&
+ (pte_val(entry) & _PAGE_WRITE)) {
/*
* Without enhanced suppression-on-protection force
* the dirty bit on for all writable ptes.
barrier();
}
+#define arch_mutex_cpu_relax() barrier()
+
static inline void psw_set_key(unsigned int key)
{
asm volatile("spka 0(%0)" : : "d" (key));
extern int arch_spin_trylock_retry(arch_spinlock_t *);
extern void arch_spin_relax(arch_spinlock_t *lock);
+static inline int arch_spin_value_unlocked(arch_spinlock_t lock)
+{
+ return lock.owner_cpu == 0;
+}
+
static inline void arch_spin_lock(arch_spinlock_t *lp)
{
int old;
typedef unsigned long long cycles_t;
-static inline unsigned long long get_tod_clock(void)
-{
- unsigned long long clk;
-
-#ifdef CONFIG_HAVE_MARCH_Z9_109_FEATURES
- asm volatile(".insn s,0xb27c0000,%0" : "=Q" (clk) : : "cc");
-#else
- asm volatile("stck %0" : "=Q" (clk) : : "cc");
-#endif
- return clk;
-}
-
static inline void get_tod_clock_ext(char *clk)
{
asm volatile("stcke %0" : "=Q" (*clk) : : "cc");
}
-static inline unsigned long long get_tod_clock_xt(void)
+static inline unsigned long long get_tod_clock(void)
{
unsigned char clk[16];
get_tod_clock_ext(clk);
return *((unsigned long long *)&clk[1]);
}
+static inline unsigned long long get_tod_clock_fast(void)
+{
+#ifdef CONFIG_HAVE_MARCH_Z9_109_FEATURES
+ unsigned long long clk;
+
+ asm volatile("stckf %0" : "=Q" (clk) : : "cc");
+ return clk;
+#else
+ return get_tod_clock();
+#endif
+}
+
static inline cycles_t get_cycles(void)
{
return (cycles_t) get_tod_clock() >> 2;
*/
static inline unsigned long long get_tod_clock_monotonic(void)
{
- return get_tod_clock_xt() - sched_clock_base_cc;
+ return get_tod_clock() - sched_clock_base_cc;
}
/**
break;
}
}
- return err;
+ return err ? -EFAULT : 0;
}
int copy_siginfo_from_user32(siginfo_t *to, compat_siginfo_t __user *from)
break;
}
}
- return err;
+ return err ? -EFAULT : 0;
}
static int save_sigregs32(struct pt_regs *regs, _sigregs32 __user *sregs)
}
/*
- * Copy up to one page to vmalloc or real memory
+ * Copy real to virtual or real memory
*/
-static ssize_t copy_page_real(void *buf, void *src, size_t csize)
+static int copy_from_realmem(void *dest, void *src, size_t count)
{
- size_t size;
+ unsigned long size;
+ int rc;
- if (is_vmalloc_addr(buf)) {
- BUG_ON(csize >= PAGE_SIZE);
- /* If buf is not page aligned, copy first part */
- size = min(roundup(__pa(buf), PAGE_SIZE) - __pa(buf), csize);
- if (size) {
- if (memcpy_real(load_real_addr(buf), src, size))
- return -EFAULT;
- buf += size;
- src += size;
- }
- /* Copy second part */
- size = csize - size;
- return (size) ? memcpy_real(load_real_addr(buf), src, size) : 0;
- } else {
- return memcpy_real(buf, src, csize);
- }
+ if (!count)
+ return 0;
+ if (!is_vmalloc_or_module_addr(dest))
+ return memcpy_real(dest, src, count);
+ do {
+ size = min(count, PAGE_SIZE - (__pa(dest) & ~PAGE_MASK));
+ if (memcpy_real(load_real_addr(dest), src, size))
+ return -EFAULT;
+ count -= size;
+ dest += size;
+ src += size;
+ } while (count);
+ return 0;
}
/*
rc = copy_to_user_real((void __force __user *) buf,
(void *) src, csize);
else
- rc = copy_page_real(buf, (void *) src, csize);
+ rc = copy_from_realmem(buf, (void *) src, csize);
return (rc == 0) ? rc : csize;
}
if (OLDMEM_BASE) {
if ((unsigned long) src < OLDMEM_SIZE) {
copied = min(count, OLDMEM_SIZE - (unsigned long) src);
- rc = memcpy_real(dest, src + OLDMEM_BASE, copied);
+ rc = copy_from_realmem(dest, src + OLDMEM_BASE, copied);
if (rc)
return rc;
}
return rc;
}
}
- return memcpy_real(dest + copied, src + copied, count - copied);
+ return copy_from_realmem(dest + copied, src + copied, count - copied);
}
/*
debug_finish_entry(debug_info_t * id, debug_entry_t* active, int level,
int exception)
{
- active->id.stck = get_tod_clock();
+ active->id.stck = get_tod_clock_fast();
active->id.fields.cpuid = smp_processor_id();
active->caller = __builtin_return_address(0);
active->id.fields.exception = exception;
tm __TI_flags+3(%r12),_TIF_SYSCALL
jno sysc_return
lm %r2,%r7,__PT_R2(%r11) # load svc arguments
+ l %r10,__TI_sysc_table(%r12) # 31 bit system call table
xr %r8,%r8 # svc 0 returns -ENOSYS
clc __PT_INT_CODE+2(2,%r11),BASED(.Lnr_syscalls+2)
jnl sysc_nr_ok # invalid svc number -> do svc 0
tm __TI_flags+7(%r12),_TIF_SYSCALL
jno sysc_return
lmg %r2,%r7,__PT_R2(%r11) # load svc arguments
+ lg %r10,__TI_sysc_table(%r12) # address of system call table
lghi %r8,0 # svc 0 returns -ENOSYS
llgh %r1,__PT_INT_CODE+2(%r11) # load new svc number
cghi %r1,NR_syscalls
case 0xac: /* stnsm */
case 0xad: /* stosm */
return -EINVAL;
+ case 0xc6:
+ switch (insn[0] & 0x0f) {
+ case 0x00: /* exrl */
+ return -EINVAL;
+ }
}
switch (insn[0]) {
case 0x0101: /* pr */
break;
case 0xc6:
switch (insn[0] & 0x0f) {
- case 0x00: /* exrl */
case 0x02: /* pfdrl */
case 0x04: /* cghrl */
case 0x05: /* chrl */
}
if ((!rc) && (vcpu->arch.sie_block->ckc <
- get_tod_clock() + vcpu->arch.sie_block->epoch)) {
+ get_tod_clock_fast() + vcpu->arch.sie_block->epoch)) {
if ((!psw_extint_disabled(vcpu)) &&
(vcpu->arch.sie_block->gcr[0] & 0x800ul))
rc = 1;
goto no_timer;
}
- now = get_tod_clock() + vcpu->arch.sie_block->epoch;
+ now = get_tod_clock_fast() + vcpu->arch.sie_block->epoch;
if (vcpu->arch.sie_block->ckc < now) {
__unset_cpu_idle(vcpu);
return 0;
}
if ((vcpu->arch.sie_block->ckc <
- get_tod_clock() + vcpu->arch.sie_block->epoch))
+ get_tod_clock_fast() + vcpu->arch.sie_block->epoch))
__try_deliver_ckc_interrupt(vcpu);
if (atomic_read(&fi->active)) {
do {
set_clock_comparator(end);
vtime_stop_cpu();
- } while (get_tod_clock() < end);
+ } while (get_tod_clock_fast() < end);
lockdep_on();
__ctl_load(cr0, 0, 0);
__ctl_load(cr6, 6, 6);
{
u64 clock_saved, end;
- end = get_tod_clock() + (usecs << 12);
+ end = get_tod_clock_fast() + (usecs << 12);
do {
clock_saved = 0;
if (end < S390_lowcore.clock_comparator) {
vtime_stop_cpu();
if (clock_saved)
local_tick_enable(clock_saved);
- } while (get_tod_clock() < end);
+ } while (get_tod_clock_fast() < end);
}
/*
{
u64 end;
- end = get_tod_clock() + (usecs << 12);
- while (get_tod_clock() < end)
+ end = get_tod_clock_fast() + (usecs << 12);
+ while (get_tod_clock_fast() < end)
cpu_relax();
}
nsecs <<= 9;
do_div(nsecs, 125);
- end = get_tod_clock() + nsecs;
+ end = get_tod_clock_fast() + nsecs;
if (nsecs & ~0xfffUL)
__udelay(nsecs >> 12);
- while (get_tod_clock() < end)
+ while (get_tod_clock_fast() < end)
barrier();
}
EXPORT_SYMBOL(__ndelay);
struct bpf_binary_header *header = (void *)addr;
if (fp->bpf_func == sk_run_filter)
- return;
+ goto free_filter;
set_memory_rw(addr, header->pages);
module_free(NULL, header);
+free_filter:
+ kfree(fp);
}
config SCORE
def_bool y
+ select HAVE_GENERIC_HARDIRQS
select GENERIC_IRQ_SHOW
select GENERIC_IOMAP
select GENERIC_ATOMIC64
source "crypto/Kconfig"
source "lib/Kconfig"
+
+config NO_IOMEM
+ def_bool y
#
KBUILD_AFLAGS += $(cflags-y)
KBUILD_CFLAGS += $(cflags-y)
-KBUILD_AFLAGS_MODULE += -mlong-calls
-KBUILD_CFLAGS_MODULE += -mlong-calls
+KBUILD_AFLAGS_MODULE +=
+KBUILD_CFLAGS_MODULE +=
LDFLAGS += --oformat elf32-littlescore
LDFLAGS_vmlinux += -G0 -static -nostdlib
__wsum sum)
{
__asm__ __volatile__(
- ".set\tnoreorder\t\t\t# csum_ipv6_magic\n\t"
- ".set\tnoat\n\t"
- "addu\t%0, %5\t\t\t# proto (long in network byte order)\n\t"
- "sltu\t$1, %0, %5\n\t"
- "addu\t%0, $1\n\t"
- "addu\t%0, %6\t\t\t# csum\n\t"
- "sltu\t$1, %0, %6\n\t"
- "lw\t%1, 0(%2)\t\t\t# four words source address\n\t"
- "addu\t%0, $1\n\t"
- "addu\t%0, %1\n\t"
- "sltu\t$1, %0, %1\n\t"
- "lw\t%1, 4(%2)\n\t"
- "addu\t%0, $1\n\t"
- "addu\t%0, %1\n\t"
- "sltu\t$1, %0, %1\n\t"
- "lw\t%1, 8(%2)\n\t"
- "addu\t%0, $1\n\t"
- "addu\t%0, %1\n\t"
- "sltu\t$1, %0, %1\n\t"
- "lw\t%1, 12(%2)\n\t"
- "addu\t%0, $1\n\t"
- "addu\t%0, %1\n\t"
- "sltu\t$1, %0, %1\n\t"
- "lw\t%1, 0(%3)\n\t"
- "addu\t%0, $1\n\t"
- "addu\t%0, %1\n\t"
- "sltu\t$1, %0, %1\n\t"
- "lw\t%1, 4(%3)\n\t"
- "addu\t%0, $1\n\t"
- "addu\t%0, %1\n\t"
- "sltu\t$1, %0, %1\n\t"
- "lw\t%1, 8(%3)\n\t"
- "addu\t%0, $1\n\t"
- "addu\t%0, %1\n\t"
- "sltu\t$1, %0, %1\n\t"
- "lw\t%1, 12(%3)\n\t"
- "addu\t%0, $1\n\t"
- "addu\t%0, %1\n\t"
- "sltu\t$1, %0, %1\n\t"
- "addu\t%0, $1\t\t\t# Add final carry\n\t"
- ".set\tnoat\n\t"
- ".set\tnoreorder"
+ ".set\tvolatile\t\t\t# csum_ipv6_magic\n\t"
+ "add\t%0, %0, %5\t\t\t# proto (long in network byte order)\n\t"
+ "cmp.c\t%5, %0\n\t"
+ "bleu 1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:add\t%0, %0, %6\t\t\t# csum\n\t"
+ "cmp.c\t%6, %0\n\t"
+ "lw\t%1, [%2, 0]\t\t\t# four words source address\n\t"
+ "bleu 1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:add\t%0, %0, %1\n\t"
+ "cmp.c\t%1, %0\n\t"
+ "1:lw\t%1, [%2, 4]\n\t"
+ "bleu 1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:add\t%0, %0, %1\n\t"
+ "cmp.c\t%1, %0\n\t"
+ "lw\t%1, [%2,8]\n\t"
+ "bleu 1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:add\t%0, %0, %1\n\t"
+ "cmp.c\t%1, %0\n\t"
+ "lw\t%1, [%2, 12]\n\t"
+ "bleu 1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:add\t%0, %0,%1\n\t"
+ "cmp.c\t%1, %0\n\t"
+ "lw\t%1, [%3, 0]\n\t"
+ "bleu 1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:add\t%0, %0, %1\n\t"
+ "cmp.c\t%1, %0\n\t"
+ "lw\t%1, [%3, 4]\n\t"
+ "bleu 1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:add\t%0, %0, %1\n\t"
+ "cmp.c\t%1, %0\n\t"
+ "lw\t%1, [%3, 8]\n\t"
+ "bleu 1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:add\t%0, %0, %1\n\t"
+ "cmp.c\t%1, %0\n\t"
+ "lw\t%1, [%3, 12]\n\t"
+ "bleu 1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:add\t%0, %0, %1\n\t"
+ "cmp.c\t%1, %0\n\t"
+ "bleu 1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:\n\t"
+ ".set\toptimize"
: "=r" (sum), "=r" (proto)
: "r" (saddr), "r" (daddr),
"0" (htonl(len)), "1" (htonl(proto)), "r" (sum));
#define virt_to_bus virt_to_phys
#define bus_to_virt phys_to_virt
-
#endif /* _ASM_SCORE_IO_H */
#define _ASM_SCORE_PGALLOC_H
#include <linux/mm.h>
-
+#include <linux/highmem.h>
static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
pte_t *pte)
{
disable_irq
lw r8, [r28, TI_PRE_COUNT]
cmpz.c r8
- bne r8, restore_all
+ bne restore_all
need_resched:
lw r8, [r28, TI_FLAGS]
andri.c r9, r8, _TIF_NEED_RESCHED
sw r9, [r0, PT_EPC]
cmpi.c r27, __NR_syscalls # check syscall number
- bgeu illegal_syscall
+ bcs illegal_syscall
slli r8, r27, 2 # get syscall routine
la r11, sys_call_table
p->thread.reg0 = (unsigned long) childregs;
if (unlikely(p->flags & PF_KTHREAD)) {
memset(childregs, 0, sizeof(struct pt_regs));
- p->thread->reg12 = usp;
- p->thread->reg13 = arg;
+ p->thread.reg12 = usp;
+ p->thread.reg13 = arg;
p->thread.reg3 = (unsigned long) ret_from_kernel_thread;
} else {
*childregs = *current_pt_regs();
Only choose N if you know in advance that you will not need to modify
OpenPROM settings on the running system.
-# Makefile helper
+# Makefile helpers
config SPARC64_PCI
bool
default y
depends on SPARC64 && PCI
+config SPARC64_PCI_MSI
+ bool
+ default y
+ depends on SPARC64_PCI && PCI_MSI
+
endmenu
menu "Executable file formats"
once = 1;
error = request_irq(FLOPPY_IRQ, sparc_floppy_irq,
- IRQF_DISABLED, "floppy", NULL);
+ 0, "floppy", NULL);
return ((error == 0) ? 0 : -1);
}
static __always_inline bool arch_static_branch(struct static_key *key)
{
- asm goto("1:\n\t"
+ asm_volatile_goto("1:\n\t"
"nop\n\t"
"nop\n\t"
".pushsection __jump_table, \"aw\"\n\t"
+
#
# Makefile for the linux kernel.
#
obj-$(CONFIG_SPARC64_PCI) += pci.o pci_common.o psycho_common.o
obj-$(CONFIG_SPARC64_PCI) += pci_psycho.o pci_sabre.o pci_schizo.o
obj-$(CONFIG_SPARC64_PCI) += pci_sun4v.o pci_sun4v_asm.o pci_fire.o
-obj-$(CONFIG_PCI_MSI) += pci_msi.o
+obj-$(CONFIG_SPARC64_PCI_MSI) += pci_msi.o
obj-$(CONFIG_COMPAT) += sys32.o sys_sparc32.o signal32.o
if (boot_command && strlen(boot_command)) {
unsigned long len;
- strcpy(full_boot_str, "boot ");
- strlcpy(full_boot_str + strlen("boot "), boot_command,
- sizeof(full_boot_str + strlen("boot ")));
+ snprintf(full_boot_str, sizeof(full_boot_str), "boot %s",
+ boot_command);
len = strlen(full_boot_str);
if (reboot_data_supported) {
snprintf(lp->rx_irq_name, LDC_IRQ_NAME_MAX, "%s RX", name);
snprintf(lp->tx_irq_name, LDC_IRQ_NAME_MAX, "%s TX", name);
- err = request_irq(lp->cfg.rx_irq, ldc_rx, IRQF_DISABLED,
+ err = request_irq(lp->cfg.rx_irq, ldc_rx, 0,
lp->rx_irq_name, lp);
if (err)
return err;
- err = request_irq(lp->cfg.tx_irq, ldc_tx, IRQF_DISABLED,
+ err = request_irq(lp->cfg.tx_irq, ldc_tx, 0,
lp->tx_irq_name, lp);
if (err) {
free_irq(lp->cfg.rx_irq, lp);
{
if (fp->bpf_func != sk_run_filter)
module_free(NULL, fp->bpf_func);
+ kfree(fp);
}
*
* Atomically sets @v to @i and returns old @v
*/
-static inline u64 atomic64_xchg(atomic64_t *v, u64 n)
+static inline long long atomic64_xchg(atomic64_t *v, long long n)
{
return xchg64(&v->counter, n);
}
* Atomically checks if @v holds @o and replaces it with @n if so.
* Returns the old value at @v.
*/
-static inline u64 atomic64_cmpxchg(atomic64_t *v, u64 o, u64 n)
+static inline long long atomic64_cmpxchg(atomic64_t *v, long long o,
+ long long n)
{
return cmpxchg64(&v->counter, o, n);
}
/* A 64bit atomic type */
typedef struct {
- u64 __aligned(8) counter;
+ long long counter;
} atomic64_t;
#define ATOMIC64_INIT(val) { (val) }
*
* Atomically reads the value of @v.
*/
-static inline u64 atomic64_read(const atomic64_t *v)
+static inline long long atomic64_read(const atomic64_t *v)
{
/*
* Requires an atomic op to read both 32-bit parts consistently.
* Casting away const is safe since the atomic support routines
* do not write to memory if the value has not been modified.
*/
- return _atomic64_xchg_add((u64 *)&v->counter, 0);
+ return _atomic64_xchg_add((long long *)&v->counter, 0);
}
/**
*
* Atomically adds @i to @v.
*/
-static inline void atomic64_add(u64 i, atomic64_t *v)
+static inline void atomic64_add(long long i, atomic64_t *v)
{
_atomic64_xchg_add(&v->counter, i);
}
*
* Atomically adds @i to @v and returns @i + @v
*/
-static inline u64 atomic64_add_return(u64 i, atomic64_t *v)
+static inline long long atomic64_add_return(long long i, atomic64_t *v)
{
smp_mb(); /* barrier for proper semantics */
return _atomic64_xchg_add(&v->counter, i) + i;
* Atomically adds @a to @v, so long as @v was not already @u.
* Returns non-zero if @v was not @u, and zero otherwise.
*/
-static inline u64 atomic64_add_unless(atomic64_t *v, u64 a, u64 u)
+static inline long long atomic64_add_unless(atomic64_t *v, long long a,
+ long long u)
{
smp_mb(); /* barrier for proper semantics */
return _atomic64_xchg_add_unless(&v->counter, a, u) != u;
* atomic64_set() can't be just a raw store, since it would be lost if it
* fell between the load and store of one of the other atomic ops.
*/
-static inline void atomic64_set(atomic64_t *v, u64 n)
+static inline void atomic64_set(atomic64_t *v, long long n)
{
_atomic64_xchg(&v->counter, n);
}
extern struct __get_user __atomic_or(volatile int *p, int *lock, int n);
extern struct __get_user __atomic_andn(volatile int *p, int *lock, int n);
extern struct __get_user __atomic_xor(volatile int *p, int *lock, int n);
-extern u64 __atomic64_cmpxchg(volatile u64 *p, int *lock, u64 o, u64 n);
-extern u64 __atomic64_xchg(volatile u64 *p, int *lock, u64 n);
-extern u64 __atomic64_xchg_add(volatile u64 *p, int *lock, u64 n);
-extern u64 __atomic64_xchg_add_unless(volatile u64 *p,
- int *lock, u64 o, u64 n);
+extern long long __atomic64_cmpxchg(volatile long long *p, int *lock,
+ long long o, long long n);
+extern long long __atomic64_xchg(volatile long long *p, int *lock, long long n);
+extern long long __atomic64_xchg_add(volatile long long *p, int *lock,
+ long long n);
+extern long long __atomic64_xchg_add_unless(volatile long long *p,
+ int *lock, long long o, long long n);
/* Return failure from the atomic wrappers. */
struct __get_user __atomic_bad_address(int __user *addr);
int _atomic_xchg_add(int *v, int i);
int _atomic_xchg_add_unless(int *v, int a, int u);
int _atomic_cmpxchg(int *ptr, int o, int n);
-u64 _atomic64_xchg(u64 *v, u64 n);
-u64 _atomic64_xchg_add(u64 *v, u64 i);
-u64 _atomic64_xchg_add_unless(u64 *v, u64 a, u64 u);
-u64 _atomic64_cmpxchg(u64 *v, u64 o, u64 n);
+long long _atomic64_xchg(long long *v, long long n);
+long long _atomic64_xchg_add(long long *v, long long i);
+long long _atomic64_xchg_add_unless(long long *v, long long a, long long u);
+long long _atomic64_cmpxchg(long long *v, long long o, long long n);
#define xchg(ptr, n) \
({ \
if (sizeof(*(ptr)) != 4) \
__cmpxchg_called_with_bad_pointer(); \
smp_mb(); \
- (typeof(*(ptr)))_atomic_cmpxchg((int *)ptr, (int)o, (int)n); \
+ (typeof(*(ptr)))_atomic_cmpxchg((int *)ptr, (int)o, \
+ (int)n); \
})
#define xchg64(ptr, n) \
if (sizeof(*(ptr)) != 8) \
__xchg_called_with_bad_pointer(); \
smp_mb(); \
- (typeof(*(ptr)))_atomic64_xchg((u64 *)(ptr), (u64)(n)); \
+ (typeof(*(ptr)))_atomic64_xchg((long long *)(ptr), \
+ (long long)(n)); \
})
#define cmpxchg64(ptr, o, n) \
if (sizeof(*(ptr)) != 8) \
__cmpxchg_called_with_bad_pointer(); \
smp_mb(); \
- (typeof(*(ptr)))_atomic64_cmpxchg((u64 *)ptr, (u64)o, (u64)n); \
+ (typeof(*(ptr)))_atomic64_cmpxchg((long long *)ptr, \
+ (long long)o, (long long)n); \
})
#else
switch (sizeof(*(ptr))) { \
case 4: \
__x = (typeof(__x))(unsigned long) \
- __insn_exch4((ptr), (u32)(unsigned long)(n)); \
+ __insn_exch4((ptr), \
+ (u32)(unsigned long)(n)); \
break; \
case 8: \
- __x = (typeof(__x)) \
+ __x = (typeof(__x)) \
__insn_exch((ptr), (unsigned long)(n)); \
break; \
default: \
switch (sizeof(*(ptr))) { \
case 4: \
__x = (typeof(__x))(unsigned long) \
- __insn_cmpexch4((ptr), (u32)(unsigned long)(n)); \
+ __insn_cmpexch4((ptr), \
+ (u32)(unsigned long)(n)); \
break; \
case 8: \
- __x = (typeof(__x))__insn_cmpexch((ptr), (u64)(n)); \
+ __x = (typeof(__x))__insn_cmpexch((ptr), \
+ (long long)(n)); \
break; \
default: \
__cmpxchg_called_with_bad_pointer(); \
#ifndef _ASM_TILE_PERCPU_H
#define _ASM_TILE_PERCPU_H
-register unsigned long __my_cpu_offset __asm__("tp");
-#define __my_cpu_offset __my_cpu_offset
-#define set_my_cpu_offset(tp) (__my_cpu_offset = (tp))
+register unsigned long my_cpu_offset_reg asm("tp");
+
+#ifdef CONFIG_PREEMPT
+/*
+ * For full preemption, we can't just use the register variable
+ * directly, since we need barrier() to hazard against it, causing the
+ * compiler to reload anything computed from a previous "tp" value.
+ * But we also don't want to use volatile asm, since we'd like the
+ * compiler to be able to cache the value across multiple percpu reads.
+ * So we use a fake stack read as a hazard against barrier().
+ * The 'U' constraint is like 'm' but disallows postincrement.
+ */
+static inline unsigned long __my_cpu_offset(void)
+{
+ unsigned long tp;
+ register unsigned long *sp asm("sp");
+ asm("move %0, tp" : "=r" (tp) : "U" (*sp));
+ return tp;
+}
+#define __my_cpu_offset __my_cpu_offset()
+#else
+/*
+ * We don't need to hazard against barrier() since "tp" doesn't ever
+ * change with PREEMPT_NONE, and with PREEMPT_VOLUNTARY it only
+ * changes at function call points, at which we are already re-reading
+ * the value of "tp" due to "my_cpu_offset_reg" being a global variable.
+ */
+#define __my_cpu_offset my_cpu_offset_reg
+#endif
+
+#define set_my_cpu_offset(tp) (my_cpu_offset_reg = (tp))
#include <asm-generic/percpu.h>
0,
"udn",
LIST_HEAD_INIT(hardwall_types[HARDWALL_UDN].list),
- __SPIN_LOCK_INITIALIZER(hardwall_types[HARDWALL_UDN].lock),
+ __SPIN_LOCK_UNLOCKED(hardwall_types[HARDWALL_UDN].lock),
NULL
},
#ifndef __tilepro__
1, /* disabled pending hypervisor support */
"idn",
LIST_HEAD_INIT(hardwall_types[HARDWALL_IDN].list),
- __SPIN_LOCK_INITIALIZER(hardwall_types[HARDWALL_IDN].lock),
+ __SPIN_LOCK_UNLOCKED(hardwall_types[HARDWALL_IDN].lock),
NULL
},
{ /* access to user-space IPI */
0,
"ipi",
LIST_HEAD_INIT(hardwall_types[HARDWALL_IPI].list),
- __SPIN_LOCK_INITIALIZER(hardwall_types[HARDWALL_IPI].lock),
+ __SPIN_LOCK_UNLOCKED(hardwall_types[HARDWALL_IPI].lock),
NULL
},
#endif
}
bzt r28, 1f
bnz r29, 1f
+ /* Disable interrupts explicitly for preemption. */
+ IRQ_DISABLE(r20,r21)
+ TRACE_IRQS_OFF
jal preempt_schedule_irq
FEEDBACK_REENTER(interrupt_return)
1:
}
beqzt r28, 1f
bnez r29, 1f
+ /* Disable interrupts explicitly for preemption. */
+ IRQ_DISABLE(r20,r21)
+ TRACE_IRQS_OFF
jal preempt_schedule_irq
FEEDBACK_REENTER(interrupt_return)
1:
#include <linux/mmzone.h>
#include <linux/dcache.h>
#include <linux/fs.h>
+#include <linux/string.h>
#include <asm/backtrace.h>
#include <asm/page.h>
#include <asm/ucontext.h>
}
if (vma->vm_file) {
- char *s;
p = d_path(&vma->vm_file->f_path, buf, bufsize);
if (IS_ERR(p))
p = "?";
- s = strrchr(p, '/');
- if (s)
- p = s+1;
+ name = kbasename(p);
} else {
- p = "anon";
+ name = "anon";
}
/* Generate a string description of the vma info. */
- namelen = strlen(p);
+ namelen = strlen(name);
remaining = (bufsize - 1) - namelen;
- memmove(buf, p, namelen);
+ memmove(buf, name, namelen);
snprintf(buf + namelen, remaining, "[%lx+%lx] ",
vma->vm_start, vma->vm_end - vma->vm_start);
}
EXPORT_SYMBOL(_atomic_xor);
-u64 _atomic64_xchg(u64 *v, u64 n)
+long long _atomic64_xchg(long long *v, long long n)
{
return __atomic64_xchg(v, __atomic_setup(v), n);
}
EXPORT_SYMBOL(_atomic64_xchg);
-u64 _atomic64_xchg_add(u64 *v, u64 i)
+long long _atomic64_xchg_add(long long *v, long long i)
{
return __atomic64_xchg_add(v, __atomic_setup(v), i);
}
EXPORT_SYMBOL(_atomic64_xchg_add);
-u64 _atomic64_xchg_add_unless(u64 *v, u64 a, u64 u)
+long long _atomic64_xchg_add_unless(long long *v, long long a, long long u)
{
/*
* Note: argument order is switched here since it is easier
}
EXPORT_SYMBOL(_atomic64_xchg_add_unless);
-u64 _atomic64_cmpxchg(u64 *v, u64 o, u64 n)
+long long _atomic64_cmpxchg(long long *v, long long o, long long n)
{
return __atomic64_cmpxchg(v, __atomic_setup(v), o, n);
}
default "-fcall-saved-ecx -fcall-saved-edx" if X86_32
default "-fcall-saved-rdi -fcall-saved-rsi -fcall-saved-rdx -fcall-saved-rcx -fcall-saved-r8 -fcall-saved-r9 -fcall-saved-r10 -fcall-saved-r11" if X86_64
-config ARCH_CPU_PROBE_RELEASE
- def_bool y
- depends on HOTPLUG_CPU
-
config ARCH_SUPPORTS_UPROBES
def_bool y
config X86_UP_APIC
bool "Local APIC support on uniprocessors"
- depends on X86_32 && !SMP && !X86_32_NON_STANDARD
+ depends on X86_32 && !SMP && !X86_32_NON_STANDARD && !PCI_MSI
---help---
A local APIC (Advanced Programmable Interrupt Controller) is an
integrated interrupt controller in the CPU. If you have a single-CPU
config X86_LOCAL_APIC
def_bool y
- depends on X86_64 || SMP || X86_32_NON_STANDARD || X86_UP_APIC
+ depends on X86_64 || SMP || X86_32_NON_STANDARD || X86_UP_APIC || PCI_MSI
config X86_IO_APIC
def_bool y
- depends on X86_64 || SMP || X86_32_NON_STANDARD || X86_UP_IOAPIC
+ depends on X86_64 || SMP || X86_32_NON_STANDARD || X86_UP_IOAPIC || PCI_MSI
config X86_VISWS_APIC
def_bool y
config MICROCODE
tristate "CPU microcode loading support"
+ depends on CPU_SUP_AMD || CPU_SUP_INTEL
select FW_LOADER
---help---
#include <acpi/pdc_intel.h>
#include <asm/numa.h>
+#include <asm/fixmap.h>
#include <asm/processor.h>
#include <asm/mmu.h>
#include <asm/mpspec.h>
* Catch too early usage of this before alternatives
* have run.
*/
- asm goto("1: jmp %l[t_warn]\n"
+ asm_volatile_goto("1: jmp %l[t_warn]\n"
"2:\n"
".section .altinstructions,\"a\"\n"
" .long 1b - .\n"
#endif
- asm goto("1: jmp %l[t_no]\n"
+ asm_volatile_goto("1: jmp %l[t_no]\n"
"2:\n"
".section .altinstructions,\"a\"\n"
" .long 1b - .\n"
* have. Thus, we force the jump to the widest, 4-byte, signed relative
* offset even though the last would often fit in less bytes.
*/
- asm goto("1: .byte 0xe9\n .long %l[t_dynamic] - 2f\n"
+ asm_volatile_goto("1: .byte 0xe9\n .long %l[t_dynamic] - 2f\n"
"2:\n"
".section .altinstructions,\"a\"\n"
" .long 1b - .\n" /* src offset */
static __always_inline bool arch_static_branch(struct static_key *key)
{
- asm goto("1:"
+ asm_volatile_goto("1:"
".byte " __stringify(STATIC_KEY_INIT_NOP) "\n\t"
".pushsection __jump_table, \"aw\" \n\t"
_ASM_ALIGN "\n\t"
#ifdef CONFIG_SMP
int rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h);
int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h);
+int rdmsrl_on_cpu(unsigned int cpu, u32 msr_no, u64 *q);
+int wrmsrl_on_cpu(unsigned int cpu, u32 msr_no, u64 q);
void rdmsr_on_cpus(const struct cpumask *mask, u32 msr_no, struct msr *msrs);
void wrmsr_on_cpus(const struct cpumask *mask, u32 msr_no, struct msr *msrs);
int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h);
int wrmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h);
+int rdmsrl_safe_on_cpu(unsigned int cpu, u32 msr_no, u64 *q);
+int wrmsrl_safe_on_cpu(unsigned int cpu, u32 msr_no, u64 q);
int rdmsr_safe_regs_on_cpu(unsigned int cpu, u32 regs[8]);
int wrmsr_safe_regs_on_cpu(unsigned int cpu, u32 regs[8]);
#else /* CONFIG_SMP */
wrmsr(msr_no, l, h);
return 0;
}
+static inline int rdmsrl_on_cpu(unsigned int cpu, u32 msr_no, u64 *q)
+{
+ rdmsrl(msr_no, *q);
+ return 0;
+}
+static inline int wrmsrl_on_cpu(unsigned int cpu, u32 msr_no, u64 q)
+{
+ wrmsrl(msr_no, q);
+ return 0;
+}
static inline void rdmsr_on_cpus(const struct cpumask *m, u32 msr_no,
struct msr *msrs)
{
{
return wrmsr_safe(msr_no, l, h);
}
+static inline int rdmsrl_safe_on_cpu(unsigned int cpu, u32 msr_no, u64 *q)
+{
+ return rdmsrl_safe(msr_no, q);
+}
+static inline int wrmsrl_safe_on_cpu(unsigned int cpu, u32 msr_no, u64 q)
+{
+ return wrmsrl_safe(msr_no, q);
+}
static inline int rdmsr_safe_regs_on_cpu(unsigned int cpu, u32 regs[8])
{
return rdmsr_safe_regs(regs);
static inline void __mutex_fastpath_lock(atomic_t *v,
void (*fail_fn)(atomic_t *))
{
- asm volatile goto(LOCK_PREFIX " decl %0\n"
+ asm_volatile_goto(LOCK_PREFIX " decl %0\n"
" jns %l[exit]\n"
: : "m" (v->counter)
: "memory", "cc"
static inline void __mutex_fastpath_unlock(atomic_t *v,
void (*fail_fn)(atomic_t *))
{
- asm volatile goto(LOCK_PREFIX " incl %0\n"
+ asm_volatile_goto(LOCK_PREFIX " incl %0\n"
" jg %l[exit]\n"
: : "m" (v->counter)
: "memory", "cc"
return get_phys_to_machine(pfn) != INVALID_P2M_ENTRY;
}
-static inline unsigned long mfn_to_pfn(unsigned long mfn)
+static inline unsigned long mfn_to_pfn_no_overrides(unsigned long mfn)
{
unsigned long pfn;
- int ret = 0;
+ int ret;
if (xen_feature(XENFEAT_auto_translated_physmap))
return mfn;
- if (unlikely(mfn >= machine_to_phys_nr)) {
- pfn = ~0;
- goto try_override;
- }
- pfn = 0;
+ if (unlikely(mfn >= machine_to_phys_nr))
+ return ~0;
+
/*
* The array access can fail (e.g., device space beyond end of RAM).
* In such cases it doesn't matter what we return (we return garbage),
* but we must handle the fault without crashing!
*/
ret = __get_user(pfn, &machine_to_phys_mapping[mfn]);
-try_override:
- /* ret might be < 0 if there are no entries in the m2p for mfn */
if (ret < 0)
- pfn = ~0;
- else if (get_phys_to_machine(pfn) != mfn)
+ return ~0;
+
+ return pfn;
+}
+
+static inline unsigned long mfn_to_pfn(unsigned long mfn)
+{
+ unsigned long pfn;
+
+ if (xen_feature(XENFEAT_auto_translated_physmap))
+ return mfn;
+
+ pfn = mfn_to_pfn_no_overrides(mfn);
+ if (get_phys_to_machine(pfn) != mfn) {
/*
* If this appears to be a foreign mfn (because the pfn
* doesn't map back to the mfn), then check the local override
* m2p_find_override_pfn returns ~0 if it doesn't find anything.
*/
pfn = m2p_find_override_pfn(mfn, ~0);
+ }
/*
* pfn is ~0 if there are no entries in the m2p for mfn or if the
#ifdef CONFIG_HPET_TIMER
#include <asm/hpet.h>
-static struct __initdata resource *hpet_res;
+static struct resource *hpet_res __initdata;
static int __init acpi_parse_hpet(struct acpi_table_header *table)
{
break;
case UV3_HUB_PART_NUMBER:
case UV3_HUB_PART_NUMBER_X:
- uv_min_hub_revision_id += UV3_HUB_REVISION_BASE - 1;
+ uv_min_hub_revision_id += UV3_HUB_REVISION_BASE;
break;
}
err = amd_pmu_init();
break;
default:
- return 0;
+ err = -ENOTSUPP;
}
if (err != 0) {
pr_cont("no PMU driver, software events only.\n");
void arch_perf_update_userpage(struct perf_event_mmap_page *userpg, u64 now)
{
- userpg->cap_usr_time = 0;
- userpg->cap_usr_time_zero = 0;
- userpg->cap_usr_rdpmc = x86_pmu.attr_rdpmc;
+ userpg->cap_user_time = 0;
+ userpg->cap_user_time_zero = 0;
+ userpg->cap_user_rdpmc = x86_pmu.attr_rdpmc;
userpg->pmc_width = x86_pmu.cntval_bits;
- if (!boot_cpu_has(X86_FEATURE_CONSTANT_TSC))
- return;
-
- if (!boot_cpu_has(X86_FEATURE_NONSTOP_TSC))
+ if (!sched_clock_stable)
return;
- userpg->cap_usr_time = 1;
+ userpg->cap_user_time = 1;
userpg->time_mult = this_cpu_read(cyc2ns);
userpg->time_shift = CYC2NS_SCALE_FACTOR;
userpg->time_offset = this_cpu_read(cyc2ns_offset) - now;
- if (sched_clock_stable && !check_tsc_disabled()) {
- userpg->cap_usr_time_zero = 1;
- userpg->time_zero = this_cpu_read(cyc2ns_offset);
- }
+ userpg->cap_user_time_zero = 1;
+ userpg->time_zero = this_cpu_read(cyc2ns_offset);
}
/*
break;
case 55: /* Atom 22nm "Silvermont" */
+ case 77: /* Avoton "Silvermont" */
memcpy(hw_cache_event_ids, slm_hw_cache_event_ids,
sizeof(hw_cache_event_ids));
memcpy(hw_cache_extra_regs, slm_hw_cache_extra_regs,
box->hrtimer.function = uncore_pmu_hrtimer;
}
-struct intel_uncore_box *uncore_alloc_box(struct intel_uncore_type *type, int cpu)
+static struct intel_uncore_box *uncore_alloc_box(struct intel_uncore_type *type, int node)
{
struct intel_uncore_box *box;
int i, size;
size = sizeof(*box) + type->num_shared_regs * sizeof(struct intel_uncore_extra_reg);
- box = kzalloc_node(size, GFP_KERNEL, cpu_to_node(cpu));
+ box = kzalloc_node(size, GFP_KERNEL, node);
if (!box)
return NULL;
struct intel_uncore_box *fake_box;
int ret = -EINVAL, n;
- fake_box = uncore_alloc_box(pmu->type, smp_processor_id());
+ fake_box = uncore_alloc_box(pmu->type, NUMA_NO_NODE);
if (!fake_box)
return -ENOMEM;
}
type = pci_uncores[UNCORE_PCI_DEV_TYPE(id->driver_data)];
- box = uncore_alloc_box(type, 0);
+ box = uncore_alloc_box(type, NUMA_NO_NODE);
if (!box)
return -ENOMEM;
if (pmu->func_id < 0)
pmu->func_id = j;
- box = uncore_alloc_box(type, cpu);
+ box = uncore_alloc_box(type, cpu_to_node(cpu));
if (!box)
return -ENOMEM;
if (!kvm_para_has_feature(KVM_FEATURE_PV_UNHALT))
return;
- printk(KERN_INFO "KVM setup paravirtual spinlock\n");
+ pv_lock_ops.lock_spinning = PV_CALLEE_SAVE(kvm_lock_spinning);
+ pv_lock_ops.unlock_kick = kvm_unlock_kick;
+}
+
+static __init int kvm_spinlock_init_jump(void)
+{
+ if (!kvm_para_available())
+ return 0;
+ if (!kvm_para_has_feature(KVM_FEATURE_PV_UNHALT))
+ return 0;
static_key_slow_inc(¶virt_ticketlocks_enabled);
+ printk(KERN_INFO "KVM setup paravirtual spinlock\n");
- pv_lock_ops.lock_spinning = PV_CALLEE_SAVE(kvm_lock_spinning);
- pv_lock_ops.unlock_kick = kvm_unlock_kick;
+ return 0;
}
+early_initcall(kvm_spinlock_init_jump);
+
#endif /* CONFIG_PARAVIRT_SPINLOCKS */
/* need to apply patch? */
if (rev >= mc_amd->hdr.patch_id) {
c->microcode = rev;
+ uci->cpu_sig.rev = rev;
return 0;
}
DMI_MATCH(DMI_PRODUCT_NAME, "Latitude E6320"),
},
},
+ { /* Handle problems with rebooting on the Latitude E5410. */
+ .callback = set_pci_reboot,
+ .ident = "Dell Latitude E5410",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Latitude E5410"),
+ },
+ },
{ /* Handle problems with rebooting on the Latitude E5420. */
.callback = set_pci_reboot,
.ident = "Dell Latitude E5420",
},
{ /* Handle problems with rebooting on the Precision M6600. */
.callback = set_pci_reboot,
- .ident = "Dell OptiPlex 990",
+ .ident = "Dell Precision M6600",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "Precision M6600"),
},
},
+ { /* Handle problems with rebooting on the Dell PowerEdge C6100. */
+ .callback = set_pci_reboot,
+ .ident = "Dell PowerEdge C6100",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "C6100"),
+ },
+ },
+ { /* Some C6100 machines were shipped with vendor being 'Dell'. */
+ .callback = set_pci_reboot,
+ .ident = "Dell PowerEdge C6100",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "C6100"),
+ },
+ },
{ }
};
/* State of each CPU */
DEFINE_PER_CPU(int, cpu_state) = { 0 };
-#ifdef CONFIG_HOTPLUG_CPU
-/*
- * We need this for trampoline_base protection from concurrent accesses when
- * off- and onlining cores wildly.
- */
-static DEFINE_MUTEX(x86_cpu_hotplug_driver_mutex);
-
-void cpu_hotplug_driver_lock(void)
-{
- mutex_lock(&x86_cpu_hotplug_driver_mutex);
-}
-
-void cpu_hotplug_driver_unlock(void)
-{
- mutex_unlock(&x86_cpu_hotplug_driver_mutex);
-}
-
-ssize_t arch_cpu_probe(const char *buf, size_t count) { return -1; }
-ssize_t arch_cpu_release(const char *buf, size_t count) { return -1; }
-#endif
-
/* Number of siblings per CPU package */
int smp_num_siblings = 1;
EXPORT_SYMBOL(smp_num_siblings);
* the part that is occupied by the framebuffer */
len = mode->height * mode->stride;
len = PAGE_ALIGN(len);
- if (len > si->lfb_size << 16) {
+ if (len > (u64)si->lfb_size << 16) {
printk(KERN_WARNING "sysfb: VRAM smaller than advertised\n");
return -EINVAL;
}
/* setup IORESOURCE_MEM as framebuffer memory */
memset(&res, 0, sizeof(res));
- res.flags = IORESOURCE_MEM;
+ res.flags = IORESOURCE_MEM | IORESOURCE_BUSY;
res.name = simplefb_resname;
res.start = si->lfb_base;
res.end = si->lfb_base + len - 1;
if (!cpu_is_hotpluggable(cpu))
return -EINVAL;
- cpu_hotplug_driver_lock();
+ lock_device_hotplug();
switch (action) {
case 0:
ret = cpu_down(cpu);
if (!ret) {
pr_info("CPU %u is now offline\n", cpu);
+ dev->offline = true;
kobject_uevent(&dev->kobj, KOBJ_OFFLINE);
} else
pr_debug("Can't offline CPU%d.\n", cpu);
break;
case 1:
ret = cpu_up(cpu);
- if (!ret)
+ if (!ret) {
+ dev->offline = false;
kobject_uevent(&dev->kobj, KOBJ_ONLINE);
- else
+ } else {
pr_debug("Can't online CPU%d.\n", cpu);
+ }
break;
default:
ret = -EINVAL;
}
- cpu_hotplug_driver_unlock();
+ unlock_device_hotplug();
return ret;
}
static void ept_load_pdptrs(struct kvm_vcpu *vcpu)
{
+ struct kvm_mmu *mmu = vcpu->arch.walk_mmu;
+
if (!test_bit(VCPU_EXREG_PDPTR,
(unsigned long *)&vcpu->arch.regs_dirty))
return;
if (is_paging(vcpu) && is_pae(vcpu) && !is_long_mode(vcpu)) {
- vmcs_write64(GUEST_PDPTR0, vcpu->arch.mmu.pdptrs[0]);
- vmcs_write64(GUEST_PDPTR1, vcpu->arch.mmu.pdptrs[1]);
- vmcs_write64(GUEST_PDPTR2, vcpu->arch.mmu.pdptrs[2]);
- vmcs_write64(GUEST_PDPTR3, vcpu->arch.mmu.pdptrs[3]);
+ vmcs_write64(GUEST_PDPTR0, mmu->pdptrs[0]);
+ vmcs_write64(GUEST_PDPTR1, mmu->pdptrs[1]);
+ vmcs_write64(GUEST_PDPTR2, mmu->pdptrs[2]);
+ vmcs_write64(GUEST_PDPTR3, mmu->pdptrs[3]);
}
}
static void ept_save_pdptrs(struct kvm_vcpu *vcpu)
{
+ struct kvm_mmu *mmu = vcpu->arch.walk_mmu;
+
if (is_paging(vcpu) && is_pae(vcpu) && !is_long_mode(vcpu)) {
- vcpu->arch.mmu.pdptrs[0] = vmcs_read64(GUEST_PDPTR0);
- vcpu->arch.mmu.pdptrs[1] = vmcs_read64(GUEST_PDPTR1);
- vcpu->arch.mmu.pdptrs[2] = vmcs_read64(GUEST_PDPTR2);
- vcpu->arch.mmu.pdptrs[3] = vmcs_read64(GUEST_PDPTR3);
+ mmu->pdptrs[0] = vmcs_read64(GUEST_PDPTR0);
+ mmu->pdptrs[1] = vmcs_read64(GUEST_PDPTR1);
+ mmu->pdptrs[2] = vmcs_read64(GUEST_PDPTR2);
+ mmu->pdptrs[3] = vmcs_read64(GUEST_PDPTR3);
}
__set_bit(VCPU_EXREG_PDPTR,
* There are errata that may cause this bit to not be set:
* AAK134, BY25.
*/
- if (exit_qualification & INTR_INFO_UNBLOCK_NMI)
+ if (!(to_vmx(vcpu)->idt_vectoring_info & VECTORING_INFO_VALID_MASK) &&
+ cpu_has_virtual_nmis() &&
+ (exit_qualification & INTR_INFO_UNBLOCK_NMI))
vmcs_set_bits(GUEST_INTERRUPTIBILITY_INFO, GUEST_INTR_STATE_NMI);
gpa = vmcs_read64(GUEST_PHYSICAL_ADDRESS);
vmcs_write64(GUEST_PDPTR1, vmcs12->guest_pdptr1);
vmcs_write64(GUEST_PDPTR2, vmcs12->guest_pdptr2);
vmcs_write64(GUEST_PDPTR3, vmcs12->guest_pdptr3);
- __clear_bit(VCPU_EXREG_PDPTR,
- (unsigned long *)&vcpu->arch.regs_avail);
- __clear_bit(VCPU_EXREG_PDPTR,
- (unsigned long *)&vcpu->arch.regs_dirty);
}
kvm_register_write(vcpu, VCPU_REGS_RSP, vmcs12->guest_rsp);
}
EXPORT_SYMBOL(rdmsr_on_cpu);
+int rdmsrl_on_cpu(unsigned int cpu, u32 msr_no, u64 *q)
+{
+ int err;
+ struct msr_info rv;
+
+ memset(&rv, 0, sizeof(rv));
+
+ rv.msr_no = msr_no;
+ err = smp_call_function_single(cpu, __rdmsr_on_cpu, &rv, 1);
+ *q = rv.reg.q;
+
+ return err;
+}
+EXPORT_SYMBOL(rdmsrl_on_cpu);
+
int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
{
int err;
}
EXPORT_SYMBOL(wrmsr_on_cpu);
+int wrmsrl_on_cpu(unsigned int cpu, u32 msr_no, u64 q)
+{
+ int err;
+ struct msr_info rv;
+
+ memset(&rv, 0, sizeof(rv));
+
+ rv.msr_no = msr_no;
+ rv.reg.q = q;
+
+ err = smp_call_function_single(cpu, __wrmsr_on_cpu, &rv, 1);
+
+ return err;
+}
+EXPORT_SYMBOL(wrmsrl_on_cpu);
+
static void __rwmsr_on_cpus(const struct cpumask *mask, u32 msr_no,
struct msr *msrs,
void (*msr_func) (void *info))
}
EXPORT_SYMBOL(wrmsr_safe_on_cpu);
+int wrmsrl_safe_on_cpu(unsigned int cpu, u32 msr_no, u64 q)
+{
+ int err;
+ struct msr_info rv;
+
+ memset(&rv, 0, sizeof(rv));
+
+ rv.msr_no = msr_no;
+ rv.reg.q = q;
+
+ err = smp_call_function_single(cpu, __wrmsr_safe_on_cpu, &rv, 1);
+
+ return err ? err : rv.err;
+}
+EXPORT_SYMBOL(wrmsrl_safe_on_cpu);
+
+int rdmsrl_safe_on_cpu(unsigned int cpu, u32 msr_no, u64 *q)
+{
+ int err;
+ struct msr_info rv;
+
+ memset(&rv, 0, sizeof(rv));
+
+ rv.msr_no = msr_no;
+ err = smp_call_function_single(cpu, __rdmsr_safe_on_cpu, &rv, 1);
+ *q = rv.reg.q;
+
+ return err ? err : rv.err;
+}
+EXPORT_SYMBOL(rdmsrl_safe_on_cpu);
+
/*
* These variants are significantly slower, but allows control over
* the entire 32-bit GPR set.
return;
}
+static void bpf_jit_free_deferred(struct work_struct *work)
+{
+ struct sk_filter *fp = container_of(work, struct sk_filter, work);
+ unsigned long addr = (unsigned long)fp->bpf_func & PAGE_MASK;
+ struct bpf_binary_header *header = (void *)addr;
+
+ set_memory_rw(addr, header->pages);
+ module_free(NULL, header);
+ kfree(fp);
+}
+
void bpf_jit_free(struct sk_filter *fp)
{
if (fp->bpf_func != sk_run_filter) {
- unsigned long addr = (unsigned long)fp->bpf_func & PAGE_MASK;
- struct bpf_binary_header *header = (void *)addr;
-
- set_memory_rw(addr, header->pages);
- module_free(NULL, header);
+ INIT_WORK(&fp->work, bpf_jit_free_deferred);
+ schedule_work(&fp->work);
}
}
if (!(pci_probe & PCI_PROBE_MMCONF) || pci_mmcfg_arch_init_failed)
return -ENODEV;
- if (start > end || !addr)
+ if (start > end)
return -EINVAL;
mutex_lock(&pci_mmcfg_lock);
return -EEXIST;
}
+ if (!addr) {
+ mutex_unlock(&pci_mmcfg_lock);
+ return -EINVAL;
+ }
+
rc = -EBUSY;
cfg = pci_mmconfig_alloc(seg, start, end, addr);
if (cfg == NULL) {
for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) {
md = p;
- if (!(md->attribute & EFI_MEMORY_RUNTIME) &&
- md->type != EFI_BOOT_SERVICES_CODE &&
- md->type != EFI_BOOT_SERVICES_DATA)
- continue;
+ if (!(md->attribute & EFI_MEMORY_RUNTIME)) {
+#ifdef CONFIG_X86_64
+ if (md->type != EFI_BOOT_SERVICES_CODE &&
+ md->type != EFI_BOOT_SERVICES_DATA)
+#endif
+ continue;
+ }
size = md->num_pages << EFI_PAGE_SHIFT;
end = md->phys_addr + size;
*/
static int set_lid_wake_behavior(bool wake_on_close)
{
- struct acpi_object_list arg_list;
- union acpi_object arg;
acpi_status status;
- arg_list.count = 1;
- arg_list.pointer = &arg;
- arg.type = ACPI_TYPE_INTEGER;
- arg.integer.value = wake_on_close;
-
- status = acpi_evaluate_object(NULL, "\\_SB.PCI0.LID.LIDW", &arg_list, NULL);
+ status = acpi_execute_simple_method(NULL, "\\_SB.PCI0.LID.LIDW", wake_on_close);
if (ACPI_FAILURE(status)) {
pr_warning(PFX "failed to set lid behavior\n");
return 1;
unsigned long uninitialized_var(address);
unsigned level;
pte_t *ptep = NULL;
- int ret = 0;
pfn = page_to_pfn(page);
if (!PageHighMem(page)) {
* frontend pages while they are being shared with the backend,
* because mfn_to_pfn (that ends up being called by GUPF) will
* return the backend pfn rather than the frontend pfn. */
- ret = __get_user(pfn, &machine_to_phys_mapping[mfn]);
- if (ret == 0 && get_phys_to_machine(pfn) == mfn)
+ pfn = mfn_to_pfn_no_overrides(mfn);
+ if (get_phys_to_machine(pfn) == mfn)
set_phys_to_machine(pfn, FOREIGN_FRAME(mfn));
return 0;
unsigned long uninitialized_var(address);
unsigned level;
pte_t *ptep = NULL;
- int ret = 0;
pfn = page_to_pfn(page);
mfn = get_phys_to_machine(pfn);
* the original pfn causes mfn_to_pfn(mfn) to return the frontend
* pfn again. */
mfn &= ~FOREIGN_FRAME_BIT;
- ret = __get_user(pfn, &machine_to_phys_mapping[mfn]);
- if (ret == 0 && get_phys_to_machine(pfn) == FOREIGN_FRAME(mfn) &&
+ pfn = mfn_to_pfn_no_overrides(mfn);
+ if (get_phys_to_machine(pfn) == FOREIGN_FRAME(mfn) &&
m2p_find_override(mfn) == NULL)
set_phys_to_machine(pfn, mfn);
old memory can be recycled */
make_lowmem_page_readwrite(xen_initial_gdt);
+#ifdef CONFIG_X86_32
+ /*
+ * Xen starts us with XEN_FLAT_RING1_DS, but linux code
+ * expects __USER_DS
+ */
+ loadsegment(ds, __USER_DS);
+ loadsegment(es, __USER_DS);
+#endif
+
xen_filter_cpu_maps();
xen_setup_vcpu_info_placement();
}
}
+/*
+ * Our init of PV spinlocks is split in two init functions due to us
+ * using paravirt patching and jump labels patching and having to do
+ * all of this before SMP code is invoked.
+ *
+ * The paravirt patching needs to be done _before_ the alternative asm code
+ * is started, otherwise we would not patch the core kernel code.
+ */
void __init xen_init_spinlocks(void)
{
return;
}
- static_key_slow_inc(¶virt_ticketlocks_enabled);
-
pv_lock_ops.lock_spinning = PV_CALLEE_SAVE(xen_lock_spinning);
pv_lock_ops.unlock_kick = xen_unlock_kick;
}
+/*
+ * While the jump_label init code needs to happend _after_ the jump labels are
+ * enabled and before SMP is started. Hence we use pre-SMP initcall level
+ * init. We cannot do it in xen_init_spinlocks as that is done before
+ * jump labels are activated.
+ */
+static __init int xen_init_spinlocks_jump(void)
+{
+ if (!xen_pvspin)
+ return 0;
+
+ static_key_slow_inc(¶virt_ticketlocks_enabled);
+ return 0;
+}
+early_initcall(xen_init_spinlocks_jump);
+
static __init int xen_parse_nopvspin(char *arg)
{
xen_pvspin = false;
See Documentation/cgroups/blkio-controller.txt for more information.
-config CMDLINE_PARSER
+config BLK_CMDLINE_PARSER
bool "Block device command line partition parser"
default n
---help---
- Parsing command line, get the partitions information.
+ Enabling this option allows you to specify the partition layout from
+ the kernel boot args. This is typically of use for embedded devices
+ which don't otherwise have any standardized method for listing the
+ partitions on a block device.
+
+ See Documentation/block/cmdline-partition.txt for more information.
menu "Partition Types"
obj-$(CONFIG_BLOCK_COMPAT) += compat_ioctl.o
obj-$(CONFIG_BLK_DEV_INTEGRITY) += blk-integrity.o
-obj-$(CONFIG_CMDLINE_PARSER) += cmdline-parser.o
+obj-$(CONFIG_BLK_CMDLINE_PARSER) += cmdline-parser.o
config CMDLINE_PARTITION
bool "Command line partition support" if PARTITION_ADVANCED
- select CMDLINE_PARSER
+ select BLK_CMDLINE_PARSER
help
- Say Y here if you would read the partitions table from bootargs.
+ Say Y here if you want to read the partition table from bootargs.
The format for the command line is just like mtdparts.
* Copyright (C) 2013 HUAWEI
* Author: Cai Zhiyong <caizhiyong@huawei.com>
*
- * Read block device partition table from command line.
- * The partition used for fixed block device (eMMC) embedded device.
- * It is no MBR, save storage space. Bootloader can be easily accessed
+ * Read block device partition table from the command line.
+ * Typically used for fixed block (eMMC) embedded devices.
+ * It has no MBR, so saves storage space. Bootloader can be easily accessed
* by absolute address of data on the block device.
* Users can easily change the partition.
*
* The format for the command line is just like mtdparts.
*
- * Verbose config please reference "Documentation/block/cmdline-partition.txt"
+ * For further information, see "Documentation/block/cmdline-partition.txt"
*
*/
* the disk size.
*
* Hybrid MBRs do not necessarily comply with this.
+ *
+ * Consider a bad value here to be a warning to support dd'ing
+ * an image from a smaller disk to a larger disk.
*/
if (ret == GPT_MBR_PROTECTIVE) {
sz = le32_to_cpu(mbr->partition_record[part].size_in_lba);
if (sz != (uint32_t) total_sectors - 1 && sz != 0xFFFFFFFF)
- ret = 0;
+ pr_debug("GPT: mbr size in lba (%u) different than whole disk (%u).\n",
+ sz, min_t(uint32_t,
+ total_sectors - 1, 0xFFFFFFFF));
}
done:
return ret;
source "drivers/fmc/Kconfig"
+source "drivers/powercap/Kconfig"
+
endmenu
obj-$(CONFIG_IPACK_BUS) += ipack/
obj-$(CONFIG_NTB) += ntb/
obj-$(CONFIG_FMC) += fmc/
+obj-$(CONFIG_POWERCAP) += powercap/
are configured, ACPI is used.
The project home page for the Linux ACPI subsystem is here:
- <http://www.lesswatts.org/projects/acpi/>
+ <https://01.org/linux-acpi>
Linux support for ACPI is based on Intel Corporation's ACPI
Component Architecture (ACPI CA). For more information on the
Say N to delete /proc/acpi/ files that have moved to /sys/
-config ACPI_PROCFS_POWER
- bool "Deprecated power /proc/acpi directories"
- depends on PROC_FS
- help
- For backwards compatibility, this option allows
- deprecated power /proc/acpi/ directories to exist, even when
- they have been replaced by functions in /sys.
- The deprecated directories (and their replacements) include:
- /proc/acpi/battery/* (/sys/class/power_supply/*)
- /proc/acpi/ac_adapter/* (sys/class/power_supply/*)
- This option has no effect on /proc/acpi/ directories
- and functions, which do not yet exist in /sys
- This option, together with the proc directories, will be
- deleted in 2.6.39.
-
- Say N to delete power /proc/acpi/ directories that have moved to /sys/
-
config ACPI_EC_DEBUGFS
tristate "EC read/write access through /sys/kernel/debug/ec"
default n
default y
help
This driver handles events on the power, sleep, and lid buttons.
- A daemon reads /proc/acpi/event and perform user-defined actions
- such as shutting down the system. This is necessary for
- software-controlled poweroff.
+ A daemon reads events from input devices or via netlink and
+ performs user-defined actions such as shutting down the system.
+ This is necessary for software-controlled poweroff.
To compile this driver as a module, choose M here:
the module will be called button.
To compile this driver as a module, choose M here:
the module will be called processor.
+
config ACPI_IPMI
tristate "IPMI"
- depends on IPMI_SI && IPMI_HANDLER
+ depends on IPMI_SI
default n
help
This driver enables the ACPI to access the BMC controller. And it
acpi-$(CONFIG_X86) += acpi_cmos_rtc.o
acpi-$(CONFIG_DEBUG_FS) += debugfs.o
acpi-$(CONFIG_ACPI_NUMA) += numa.o
-acpi-$(CONFIG_ACPI_PROCFS_POWER) += cm_sbs.o
ifdef CONFIG_ACPI_VIDEO
acpi-y += video_detect.o
endif
#include <linux/types.h>
#include <linux/dmi.h>
#include <linux/delay.h>
-#ifdef CONFIG_ACPI_PROCFS_POWER
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#endif
+#include <linux/platform_device.h>
#include <linux/power_supply.h>
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
MODULE_DESCRIPTION("ACPI AC Adapter Driver");
MODULE_LICENSE("GPL");
-#ifdef CONFIG_ACPI_PROCFS_POWER
-extern struct proc_dir_entry *acpi_lock_ac_dir(void);
-extern void *acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir);
-static int acpi_ac_open_fs(struct inode *inode, struct file *file);
-#endif
-
-static int acpi_ac_add(struct acpi_device *device);
-static int acpi_ac_remove(struct acpi_device *device);
-static void acpi_ac_notify(struct acpi_device *device, u32 event);
-
-static const struct acpi_device_id ac_device_ids[] = {
- {"ACPI0003", 0},
- {"", 0},
-};
-MODULE_DEVICE_TABLE(acpi, ac_device_ids);
-
-#ifdef CONFIG_PM_SLEEP
-static int acpi_ac_resume(struct device *dev);
-#endif
-static SIMPLE_DEV_PM_OPS(acpi_ac_pm, NULL, acpi_ac_resume);
-
static int ac_sleep_before_get_state_ms;
-static struct acpi_driver acpi_ac_driver = {
- .name = "ac",
- .class = ACPI_AC_CLASS,
- .ids = ac_device_ids,
- .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
- .ops = {
- .add = acpi_ac_add,
- .remove = acpi_ac_remove,
- .notify = acpi_ac_notify,
- },
- .drv.pm = &acpi_ac_pm,
-};
-
struct acpi_ac {
struct power_supply charger;
- struct acpi_device * device;
+ struct acpi_device *adev;
+ struct platform_device *pdev;
unsigned long long state;
};
#define to_acpi_ac(x) container_of(x, struct acpi_ac, charger)
-#ifdef CONFIG_ACPI_PROCFS_POWER
-static const struct file_operations acpi_ac_fops = {
- .owner = THIS_MODULE,
- .open = acpi_ac_open_fs,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-#endif
-
/* --------------------------------------------------------------------------
AC Adapter Management
-------------------------------------------------------------------------- */
static int acpi_ac_get_state(struct acpi_ac *ac)
{
- acpi_status status = AE_OK;
-
-
- if (!ac)
- return -EINVAL;
+ acpi_status status;
- status = acpi_evaluate_integer(ac->device->handle, "_PSR", NULL, &ac->state);
+ status = acpi_evaluate_integer(ac->adev->handle, "_PSR", NULL,
+ &ac->state);
if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status, "Error reading AC Adapter state"));
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Error reading AC Adapter state"));
ac->state = ACPI_AC_STATUS_UNKNOWN;
return -ENODEV;
}
POWER_SUPPLY_PROP_ONLINE,
};
-#ifdef CONFIG_ACPI_PROCFS_POWER
-/* --------------------------------------------------------------------------
- FS Interface (/proc)
- -------------------------------------------------------------------------- */
-
-static struct proc_dir_entry *acpi_ac_dir;
-
-static int acpi_ac_seq_show(struct seq_file *seq, void *offset)
-{
- struct acpi_ac *ac = seq->private;
-
-
- if (!ac)
- return 0;
-
- if (acpi_ac_get_state(ac)) {
- seq_puts(seq, "ERROR: Unable to read AC Adapter state\n");
- return 0;
- }
-
- seq_puts(seq, "state: ");
- switch (ac->state) {
- case ACPI_AC_STATUS_OFFLINE:
- seq_puts(seq, "off-line\n");
- break;
- case ACPI_AC_STATUS_ONLINE:
- seq_puts(seq, "on-line\n");
- break;
- default:
- seq_puts(seq, "unknown\n");
- break;
- }
-
- return 0;
-}
-
-static int acpi_ac_open_fs(struct inode *inode, struct file *file)
-{
- return single_open(file, acpi_ac_seq_show, PDE_DATA(inode));
-}
-
-static int acpi_ac_add_fs(struct acpi_device *device)
-{
- struct proc_dir_entry *entry = NULL;
-
- printk(KERN_WARNING PREFIX "Deprecated procfs I/F for AC is loaded,"
- " please retry with CONFIG_ACPI_PROCFS_POWER cleared\n");
- if (!acpi_device_dir(device)) {
- acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
- acpi_ac_dir);
- if (!acpi_device_dir(device))
- return -ENODEV;
- }
-
- /* 'state' [R] */
- entry = proc_create_data(ACPI_AC_FILE_STATE,
- S_IRUGO, acpi_device_dir(device),
- &acpi_ac_fops, acpi_driver_data(device));
- if (!entry)
- return -ENODEV;
- return 0;
-}
-
-static int acpi_ac_remove_fs(struct acpi_device *device)
-{
-
- if (acpi_device_dir(device)) {
- remove_proc_entry(ACPI_AC_FILE_STATE, acpi_device_dir(device));
-
- remove_proc_entry(acpi_device_bid(device), acpi_ac_dir);
- acpi_device_dir(device) = NULL;
- }
-
- return 0;
-}
-#endif
-
/* --------------------------------------------------------------------------
Driver Model
-------------------------------------------------------------------------- */
-static void acpi_ac_notify(struct acpi_device *device, u32 event)
+static void acpi_ac_notify_handler(acpi_handle handle, u32 event, void *data)
{
- struct acpi_ac *ac = acpi_driver_data(device);
-
+ struct acpi_ac *ac = data;
if (!ac)
return;
msleep(ac_sleep_before_get_state_ms);
acpi_ac_get_state(ac);
- acpi_bus_generate_netlink_event(device->pnp.device_class,
- dev_name(&device->dev), event,
- (u32) ac->state);
- acpi_notifier_call_chain(device, event, (u32) ac->state);
+ acpi_bus_generate_netlink_event(ac->adev->pnp.device_class,
+ dev_name(&ac->pdev->dev),
+ event, (u32) ac->state);
+ acpi_notifier_call_chain(ac->adev, event, (u32) ac->state);
kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE);
}
{},
};
-static int acpi_ac_add(struct acpi_device *device)
+static int acpi_ac_probe(struct platform_device *pdev)
{
int result = 0;
struct acpi_ac *ac = NULL;
+ struct acpi_device *adev;
-
- if (!device)
+ if (!pdev)
return -EINVAL;
+ result = acpi_bus_get_device(ACPI_HANDLE(&pdev->dev), &adev);
+ if (result)
+ return -ENODEV;
+
ac = kzalloc(sizeof(struct acpi_ac), GFP_KERNEL);
if (!ac)
return -ENOMEM;
- ac->device = device;
- strcpy(acpi_device_name(device), ACPI_AC_DEVICE_NAME);
- strcpy(acpi_device_class(device), ACPI_AC_CLASS);
- device->driver_data = ac;
+ strcpy(acpi_device_name(adev), ACPI_AC_DEVICE_NAME);
+ strcpy(acpi_device_class(adev), ACPI_AC_CLASS);
+ ac->adev = adev;
+ ac->pdev = pdev;
+ platform_set_drvdata(pdev, ac);
result = acpi_ac_get_state(ac);
if (result)
goto end;
-#ifdef CONFIG_ACPI_PROCFS_POWER
- result = acpi_ac_add_fs(device);
-#endif
- if (result)
- goto end;
- ac->charger.name = acpi_device_bid(device);
+ ac->charger.name = acpi_device_bid(adev);
ac->charger.type = POWER_SUPPLY_TYPE_MAINS;
ac->charger.properties = ac_props;
ac->charger.num_properties = ARRAY_SIZE(ac_props);
ac->charger.get_property = get_ac_property;
- result = power_supply_register(&ac->device->dev, &ac->charger);
+ result = power_supply_register(&pdev->dev, &ac->charger);
if (result)
goto end;
+ result = acpi_install_notify_handler(ACPI_HANDLE(&pdev->dev),
+ ACPI_DEVICE_NOTIFY, acpi_ac_notify_handler, ac);
+ if (result) {
+ power_supply_unregister(&ac->charger);
+ goto end;
+ }
printk(KERN_INFO PREFIX "%s [%s] (%s)\n",
- acpi_device_name(device), acpi_device_bid(device),
+ acpi_device_name(adev), acpi_device_bid(adev),
ac->state ? "on-line" : "off-line");
- end:
- if (result) {
-#ifdef CONFIG_ACPI_PROCFS_POWER
- acpi_ac_remove_fs(device);
-#endif
+end:
+ if (result)
kfree(ac);
- }
dmi_check_system(ac_dmi_table);
return result;
if (!dev)
return -EINVAL;
- ac = acpi_driver_data(to_acpi_device(dev));
+ ac = platform_get_drvdata(to_platform_device(dev));
if (!ac)
return -EINVAL;
return 0;
}
#endif
+static SIMPLE_DEV_PM_OPS(acpi_ac_pm_ops, NULL, acpi_ac_resume);
-static int acpi_ac_remove(struct acpi_device *device)
+static int acpi_ac_remove(struct platform_device *pdev)
{
- struct acpi_ac *ac = NULL;
-
+ struct acpi_ac *ac;
- if (!device || !acpi_driver_data(device))
+ if (!pdev)
return -EINVAL;
- ac = acpi_driver_data(device);
+ acpi_remove_notify_handler(ACPI_HANDLE(&pdev->dev),
+ ACPI_DEVICE_NOTIFY, acpi_ac_notify_handler);
+ ac = platform_get_drvdata(pdev);
if (ac->charger.dev)
power_supply_unregister(&ac->charger);
-#ifdef CONFIG_ACPI_PROCFS_POWER
- acpi_ac_remove_fs(device);
-#endif
kfree(ac);
return 0;
}
+static const struct acpi_device_id acpi_ac_match[] = {
+ { "ACPI0003", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(acpi, acpi_ac_match);
+
+static struct platform_driver acpi_ac_driver = {
+ .probe = acpi_ac_probe,
+ .remove = acpi_ac_remove,
+ .driver = {
+ .name = "acpi-ac",
+ .owner = THIS_MODULE,
+ .pm = &acpi_ac_pm_ops,
+ .acpi_match_table = ACPI_PTR(acpi_ac_match),
+ },
+};
+
static int __init acpi_ac_init(void)
{
int result;
if (acpi_disabled)
return -ENODEV;
-#ifdef CONFIG_ACPI_PROCFS_POWER
- acpi_ac_dir = acpi_lock_ac_dir();
- if (!acpi_ac_dir)
+ result = platform_driver_register(&acpi_ac_driver);
+ if (result < 0)
return -ENODEV;
-#endif
-
- result = acpi_bus_register_driver(&acpi_ac_driver);
- if (result < 0) {
-#ifdef CONFIG_ACPI_PROCFS_POWER
- acpi_unlock_ac_dir(acpi_ac_dir);
-#endif
- return -ENODEV;
- }
return 0;
}
static void __exit acpi_ac_exit(void)
{
-
- acpi_bus_unregister_driver(&acpi_ac_driver);
-
-#ifdef CONFIG_ACPI_PROCFS_POWER
- acpi_unlock_ac_dir(acpi_ac_dir);
-#endif
-
- return;
+ platform_driver_unregister(&acpi_ac_driver);
}
-
module_init(acpi_ac_init);
module_exit(acpi_ac_exit);
/*
* acpi_ipmi.c - ACPI IPMI opregion
*
- * Copyright (C) 2010 Intel Corporation
- * Copyright (C) 2010 Zhao Yakui <yakui.zhao@intel.com>
+ * Copyright (C) 2010, 2013 Intel Corporation
+ * Author: Zhao Yakui <yakui.zhao@intel.com>
+ * Lv Zheng <lv.zheng@intel.com>
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
-#include <linux/kernel.h>
#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/delay.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <linux/interrupt.h>
-#include <linux/list.h>
-#include <linux/spinlock.h>
-#include <linux/io.h>
-#include <acpi/acpi_bus.h>
-#include <acpi/acpi_drivers.h>
+#include <linux/acpi.h>
#include <linux/ipmi.h>
-#include <linux/device.h>
-#include <linux/pnp.h>
+#include <linux/spinlock.h>
MODULE_AUTHOR("Zhao Yakui");
MODULE_DESCRIPTION("ACPI IPMI Opregion driver");
MODULE_LICENSE("GPL");
-#define IPMI_FLAGS_HANDLER_INSTALL 0
-
#define ACPI_IPMI_OK 0
#define ACPI_IPMI_TIMEOUT 0x10
#define ACPI_IPMI_UNKNOWN 0x07
/* the IPMI timeout is 5s */
-#define IPMI_TIMEOUT (5 * HZ)
+#define IPMI_TIMEOUT (5000)
+#define ACPI_IPMI_MAX_MSG_LENGTH 64
struct acpi_ipmi_device {
/* the device list attached to driver_data.ipmi_devices */
struct list_head head;
+
/* the IPMI request message list */
struct list_head tx_msg_list;
- struct mutex tx_msg_lock;
+
+ spinlock_t tx_msg_lock;
acpi_handle handle;
- struct pnp_dev *pnp_dev;
- ipmi_user_t user_interface;
+ struct device *dev;
+ ipmi_user_t user_interface;
int ipmi_ifnum; /* IPMI interface number */
long curr_msgid;
- unsigned long flags;
- struct ipmi_smi_info smi_data;
+ bool dead;
+ struct kref kref;
};
struct ipmi_driver_data {
- struct list_head ipmi_devices;
- struct ipmi_smi_watcher bmc_events;
- struct ipmi_user_hndl ipmi_hndlrs;
- struct mutex ipmi_lock;
+ struct list_head ipmi_devices;
+ struct ipmi_smi_watcher bmc_events;
+ struct ipmi_user_hndl ipmi_hndlrs;
+ struct mutex ipmi_lock;
+
+ /*
+ * NOTE: IPMI System Interface Selection
+ * There is no system interface specified by the IPMI operation
+ * region access. We try to select one system interface with ACPI
+ * handle set. IPMI messages passed from the ACPI codes are sent
+ * to this selected global IPMI system interface.
+ */
+ struct acpi_ipmi_device *selected_smi;
};
struct acpi_ipmi_msg {
struct list_head head;
+
/*
* General speaking the addr type should be SI_ADDR_TYPE. And
* the addr channel should be BMC.
*/
struct ipmi_addr addr;
long tx_msgid;
+
/* it is used to track whether the IPMI message is finished */
struct completion tx_complete;
+
struct kernel_ipmi_msg tx_message;
- int msg_done;
- /* tx data . And copy it from ACPI object buffer */
- u8 tx_data[64];
- int tx_len;
- u8 rx_data[64];
- int rx_len;
+ int msg_done;
+
+ /* tx/rx data . And copy it from/to ACPI object buffer */
+ u8 data[ACPI_IPMI_MAX_MSG_LENGTH];
+ u8 rx_len;
+
struct acpi_ipmi_device *device;
+ struct kref kref;
};
/* IPMI request/response buffer per ACPI 4.0, sec 5.5.2.4.3.2 */
struct acpi_ipmi_buffer {
u8 status;
u8 length;
- u8 data[64];
+ u8 data[ACPI_IPMI_MAX_MSG_LENGTH];
};
static void ipmi_register_bmc(int iface, struct device *dev);
static void ipmi_bmc_gone(int iface);
static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data);
-static void acpi_add_ipmi_device(struct acpi_ipmi_device *ipmi_device);
-static void acpi_remove_ipmi_device(struct acpi_ipmi_device *ipmi_device);
static struct ipmi_driver_data driver_data = {
.ipmi_devices = LIST_HEAD_INIT(driver_data.ipmi_devices),
.ipmi_hndlrs = {
.ipmi_recv_hndl = ipmi_msg_handler,
},
+ .ipmi_lock = __MUTEX_INITIALIZER(driver_data.ipmi_lock)
};
-static struct acpi_ipmi_msg *acpi_alloc_ipmi_msg(struct acpi_ipmi_device *ipmi)
+static struct acpi_ipmi_device *
+ipmi_dev_alloc(int iface, struct device *dev, acpi_handle handle)
{
+ struct acpi_ipmi_device *ipmi_device;
+ int err;
+ ipmi_user_t user;
+
+ ipmi_device = kzalloc(sizeof(*ipmi_device), GFP_KERNEL);
+ if (!ipmi_device)
+ return NULL;
+
+ kref_init(&ipmi_device->kref);
+ INIT_LIST_HEAD(&ipmi_device->head);
+ INIT_LIST_HEAD(&ipmi_device->tx_msg_list);
+ spin_lock_init(&ipmi_device->tx_msg_lock);
+ ipmi_device->handle = handle;
+ ipmi_device->dev = get_device(dev);
+ ipmi_device->ipmi_ifnum = iface;
+
+ err = ipmi_create_user(iface, &driver_data.ipmi_hndlrs,
+ ipmi_device, &user);
+ if (err) {
+ put_device(dev);
+ kfree(ipmi_device);
+ return NULL;
+ }
+ ipmi_device->user_interface = user;
+
+ return ipmi_device;
+}
+
+static void ipmi_dev_release(struct acpi_ipmi_device *ipmi_device)
+{
+ ipmi_destroy_user(ipmi_device->user_interface);
+ put_device(ipmi_device->dev);
+ kfree(ipmi_device);
+}
+
+static void ipmi_dev_release_kref(struct kref *kref)
+{
+ struct acpi_ipmi_device *ipmi =
+ container_of(kref, struct acpi_ipmi_device, kref);
+
+ ipmi_dev_release(ipmi);
+}
+
+static void __ipmi_dev_kill(struct acpi_ipmi_device *ipmi_device)
+{
+ list_del(&ipmi_device->head);
+ if (driver_data.selected_smi == ipmi_device)
+ driver_data.selected_smi = NULL;
+
+ /*
+ * Always setting dead flag after deleting from the list or
+ * list_for_each_entry() codes must get changed.
+ */
+ ipmi_device->dead = true;
+}
+
+static struct acpi_ipmi_device *acpi_ipmi_dev_get(void)
+{
+ struct acpi_ipmi_device *ipmi_device = NULL;
+
+ mutex_lock(&driver_data.ipmi_lock);
+ if (driver_data.selected_smi) {
+ ipmi_device = driver_data.selected_smi;
+ kref_get(&ipmi_device->kref);
+ }
+ mutex_unlock(&driver_data.ipmi_lock);
+
+ return ipmi_device;
+}
+
+static void acpi_ipmi_dev_put(struct acpi_ipmi_device *ipmi_device)
+{
+ kref_put(&ipmi_device->kref, ipmi_dev_release_kref);
+}
+
+static struct acpi_ipmi_msg *ipmi_msg_alloc(void)
+{
+ struct acpi_ipmi_device *ipmi;
struct acpi_ipmi_msg *ipmi_msg;
- struct pnp_dev *pnp_dev = ipmi->pnp_dev;
+
+ ipmi = acpi_ipmi_dev_get();
+ if (!ipmi)
+ return NULL;
ipmi_msg = kzalloc(sizeof(struct acpi_ipmi_msg), GFP_KERNEL);
- if (!ipmi_msg) {
- dev_warn(&pnp_dev->dev, "Can't allocate memory for ipmi_msg\n");
+ if (!ipmi_msg) {
+ acpi_ipmi_dev_put(ipmi);
return NULL;
}
+
+ kref_init(&ipmi_msg->kref);
init_completion(&ipmi_msg->tx_complete);
INIT_LIST_HEAD(&ipmi_msg->head);
ipmi_msg->device = ipmi;
+ ipmi_msg->msg_done = ACPI_IPMI_UNKNOWN;
+
return ipmi_msg;
}
-#define IPMI_OP_RGN_NETFN(offset) ((offset >> 8) & 0xff)
-#define IPMI_OP_RGN_CMD(offset) (offset & 0xff)
-static void acpi_format_ipmi_msg(struct acpi_ipmi_msg *tx_msg,
- acpi_physical_address address,
- acpi_integer *value)
+static void ipmi_msg_release(struct acpi_ipmi_msg *tx_msg)
+{
+ acpi_ipmi_dev_put(tx_msg->device);
+ kfree(tx_msg);
+}
+
+static void ipmi_msg_release_kref(struct kref *kref)
+{
+ struct acpi_ipmi_msg *tx_msg =
+ container_of(kref, struct acpi_ipmi_msg, kref);
+
+ ipmi_msg_release(tx_msg);
+}
+
+static struct acpi_ipmi_msg *acpi_ipmi_msg_get(struct acpi_ipmi_msg *tx_msg)
+{
+ kref_get(&tx_msg->kref);
+
+ return tx_msg;
+}
+
+static void acpi_ipmi_msg_put(struct acpi_ipmi_msg *tx_msg)
+{
+ kref_put(&tx_msg->kref, ipmi_msg_release_kref);
+}
+
+#define IPMI_OP_RGN_NETFN(offset) ((offset >> 8) & 0xff)
+#define IPMI_OP_RGN_CMD(offset) (offset & 0xff)
+static int acpi_format_ipmi_request(struct acpi_ipmi_msg *tx_msg,
+ acpi_physical_address address,
+ acpi_integer *value)
{
struct kernel_ipmi_msg *msg;
struct acpi_ipmi_buffer *buffer;
struct acpi_ipmi_device *device;
+ unsigned long flags;
msg = &tx_msg->tx_message;
+
/*
* IPMI network function and command are encoded in the address
* within the IPMI OpRegion; see ACPI 4.0, sec 5.5.2.4.3.
*/
msg->netfn = IPMI_OP_RGN_NETFN(address);
msg->cmd = IPMI_OP_RGN_CMD(address);
- msg->data = tx_msg->tx_data;
+ msg->data = tx_msg->data;
+
/*
* value is the parameter passed by the IPMI opregion space handler.
* It points to the IPMI request message buffer
*/
buffer = (struct acpi_ipmi_buffer *)value;
+
/* copy the tx message data */
+ if (buffer->length > ACPI_IPMI_MAX_MSG_LENGTH) {
+ dev_WARN_ONCE(tx_msg->device->dev, true,
+ "Unexpected request (msg len %d).\n",
+ buffer->length);
+ return -EINVAL;
+ }
msg->data_len = buffer->length;
- memcpy(tx_msg->tx_data, buffer->data, msg->data_len);
+ memcpy(tx_msg->data, buffer->data, msg->data_len);
+
/*
* now the default type is SYSTEM_INTERFACE and channel type is BMC.
* If the netfn is APP_REQUEST and the cmd is SEND_MESSAGE,
/* Get the msgid */
device = tx_msg->device;
- mutex_lock(&device->tx_msg_lock);
+
+ spin_lock_irqsave(&device->tx_msg_lock, flags);
device->curr_msgid++;
tx_msg->tx_msgid = device->curr_msgid;
- mutex_unlock(&device->tx_msg_lock);
+ spin_unlock_irqrestore(&device->tx_msg_lock, flags);
+
+ return 0;
}
static void acpi_format_ipmi_response(struct acpi_ipmi_msg *msg,
- acpi_integer *value, int rem_time)
+ acpi_integer *value)
{
struct acpi_ipmi_buffer *buffer;
* IPMI message returned by IPMI command.
*/
buffer = (struct acpi_ipmi_buffer *)value;
- if (!rem_time && !msg->msg_done) {
- buffer->status = ACPI_IPMI_TIMEOUT;
- return;
- }
+
/*
- * If the flag of msg_done is not set or the recv length is zero, it
- * means that the IPMI command is not executed correctly.
- * The status code will be ACPI_IPMI_UNKNOWN.
+ * If the flag of msg_done is not set, it means that the IPMI command is
+ * not executed correctly.
*/
- if (!msg->msg_done || !msg->rx_len) {
- buffer->status = ACPI_IPMI_UNKNOWN;
+ buffer->status = msg->msg_done;
+ if (msg->msg_done != ACPI_IPMI_OK)
return;
- }
+
/*
* If the IPMI response message is obtained correctly, the status code
* will be ACPI_IPMI_OK
*/
- buffer->status = ACPI_IPMI_OK;
buffer->length = msg->rx_len;
- memcpy(buffer->data, msg->rx_data, msg->rx_len);
+ memcpy(buffer->data, msg->data, msg->rx_len);
}
static void ipmi_flush_tx_msg(struct acpi_ipmi_device *ipmi)
{
- struct acpi_ipmi_msg *tx_msg, *temp;
- int count = HZ / 10;
- struct pnp_dev *pnp_dev = ipmi->pnp_dev;
+ struct acpi_ipmi_msg *tx_msg;
+ unsigned long flags;
+
+ /*
+ * NOTE: On-going ipmi_recv_msg
+ * ipmi_msg_handler() may still be invoked by ipmi_si after
+ * flushing. But it is safe to do a fast flushing on module_exit()
+ * without waiting for all ipmi_recv_msg(s) to complete from
+ * ipmi_msg_handler() as it is ensured by ipmi_si that all
+ * ipmi_recv_msg(s) are freed after invoking ipmi_destroy_user().
+ */
+ spin_lock_irqsave(&ipmi->tx_msg_lock, flags);
+ while (!list_empty(&ipmi->tx_msg_list)) {
+ tx_msg = list_first_entry(&ipmi->tx_msg_list,
+ struct acpi_ipmi_msg,
+ head);
+ list_del(&tx_msg->head);
+ spin_unlock_irqrestore(&ipmi->tx_msg_lock, flags);
- list_for_each_entry_safe(tx_msg, temp, &ipmi->tx_msg_list, head) {
/* wake up the sleep thread on the Tx msg */
complete(&tx_msg->tx_complete);
+ acpi_ipmi_msg_put(tx_msg);
+ spin_lock_irqsave(&ipmi->tx_msg_lock, flags);
}
+ spin_unlock_irqrestore(&ipmi->tx_msg_lock, flags);
+}
- /* wait for about 100ms to flush the tx message list */
- while (count--) {
- if (list_empty(&ipmi->tx_msg_list))
+static void ipmi_cancel_tx_msg(struct acpi_ipmi_device *ipmi,
+ struct acpi_ipmi_msg *msg)
+{
+ struct acpi_ipmi_msg *tx_msg, *temp;
+ bool msg_found = false;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ipmi->tx_msg_lock, flags);
+ list_for_each_entry_safe(tx_msg, temp, &ipmi->tx_msg_list, head) {
+ if (msg == tx_msg) {
+ msg_found = true;
+ list_del(&tx_msg->head);
break;
- schedule_timeout(1);
+ }
}
- if (!list_empty(&ipmi->tx_msg_list))
- dev_warn(&pnp_dev->dev, "tx msg list is not NULL\n");
+ spin_unlock_irqrestore(&ipmi->tx_msg_lock, flags);
+
+ if (msg_found)
+ acpi_ipmi_msg_put(tx_msg);
}
static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data)
{
struct acpi_ipmi_device *ipmi_device = user_msg_data;
- int msg_found = 0;
- struct acpi_ipmi_msg *tx_msg;
- struct pnp_dev *pnp_dev = ipmi_device->pnp_dev;
+ bool msg_found = false;
+ struct acpi_ipmi_msg *tx_msg, *temp;
+ struct device *dev = ipmi_device->dev;
+ unsigned long flags;
if (msg->user != ipmi_device->user_interface) {
- dev_warn(&pnp_dev->dev, "Unexpected response is returned. "
- "returned user %p, expected user %p\n",
- msg->user, ipmi_device->user_interface);
- ipmi_free_recv_msg(msg);
- return;
+ dev_warn(dev,
+ "Unexpected response is returned. returned user %p, expected user %p\n",
+ msg->user, ipmi_device->user_interface);
+ goto out_msg;
}
- mutex_lock(&ipmi_device->tx_msg_lock);
- list_for_each_entry(tx_msg, &ipmi_device->tx_msg_list, head) {
+
+ spin_lock_irqsave(&ipmi_device->tx_msg_lock, flags);
+ list_for_each_entry_safe(tx_msg, temp, &ipmi_device->tx_msg_list, head) {
if (msg->msgid == tx_msg->tx_msgid) {
- msg_found = 1;
+ msg_found = true;
+ list_del(&tx_msg->head);
break;
}
}
+ spin_unlock_irqrestore(&ipmi_device->tx_msg_lock, flags);
- mutex_unlock(&ipmi_device->tx_msg_lock);
if (!msg_found) {
- dev_warn(&pnp_dev->dev, "Unexpected response (msg id %ld) is "
- "returned.\n", msg->msgid);
- ipmi_free_recv_msg(msg);
- return;
+ dev_warn(dev,
+ "Unexpected response (msg id %ld) is returned.\n",
+ msg->msgid);
+ goto out_msg;
+ }
+
+ /* copy the response data to Rx_data buffer */
+ if (msg->msg.data_len > ACPI_IPMI_MAX_MSG_LENGTH) {
+ dev_WARN_ONCE(dev, true,
+ "Unexpected response (msg len %d).\n",
+ msg->msg.data_len);
+ goto out_comp;
}
- if (msg->msg.data_len) {
- /* copy the response data to Rx_data buffer */
- memcpy(tx_msg->rx_data, msg->msg_data, msg->msg.data_len);
- tx_msg->rx_len = msg->msg.data_len;
- tx_msg->msg_done = 1;
+ /* response msg is an error msg */
+ msg->recv_type = IPMI_RESPONSE_RECV_TYPE;
+ if (msg->recv_type == IPMI_RESPONSE_RECV_TYPE &&
+ msg->msg.data_len == 1) {
+ if (msg->msg.data[0] == IPMI_TIMEOUT_COMPLETION_CODE) {
+ dev_WARN_ONCE(dev, true,
+ "Unexpected response (timeout).\n");
+ tx_msg->msg_done = ACPI_IPMI_TIMEOUT;
+ }
+ goto out_comp;
}
+
+ tx_msg->rx_len = msg->msg.data_len;
+ memcpy(tx_msg->data, msg->msg.data, tx_msg->rx_len);
+ tx_msg->msg_done = ACPI_IPMI_OK;
+
+out_comp:
complete(&tx_msg->tx_complete);
+ acpi_ipmi_msg_put(tx_msg);
+out_msg:
ipmi_free_recv_msg(msg);
-};
+}
static void ipmi_register_bmc(int iface, struct device *dev)
{
struct acpi_ipmi_device *ipmi_device, *temp;
- struct pnp_dev *pnp_dev;
- ipmi_user_t user;
int err;
struct ipmi_smi_info smi_data;
acpi_handle handle;
err = ipmi_get_smi_info(iface, &smi_data);
-
if (err)
return;
- if (smi_data.addr_src != SI_ACPI) {
- put_device(smi_data.dev);
- return;
- }
-
+ if (smi_data.addr_src != SI_ACPI)
+ goto err_ref;
handle = smi_data.addr_info.acpi_info.acpi_handle;
+ if (!handle)
+ goto err_ref;
+
+ ipmi_device = ipmi_dev_alloc(iface, smi_data.dev, handle);
+ if (!ipmi_device) {
+ dev_warn(smi_data.dev, "Can't create IPMI user interface\n");
+ goto err_ref;
+ }
mutex_lock(&driver_data.ipmi_lock);
list_for_each_entry(temp, &driver_data.ipmi_devices, head) {
* to the device list, don't add it again.
*/
if (temp->handle == handle)
- goto out;
- }
-
- ipmi_device = kzalloc(sizeof(*ipmi_device), GFP_KERNEL);
-
- if (!ipmi_device)
- goto out;
-
- pnp_dev = to_pnp_dev(smi_data.dev);
- ipmi_device->handle = handle;
- ipmi_device->pnp_dev = pnp_dev;
-
- err = ipmi_create_user(iface, &driver_data.ipmi_hndlrs,
- ipmi_device, &user);
- if (err) {
- dev_warn(&pnp_dev->dev, "Can't create IPMI user interface\n");
- kfree(ipmi_device);
- goto out;
+ goto err_lock;
}
- acpi_add_ipmi_device(ipmi_device);
- ipmi_device->user_interface = user;
- ipmi_device->ipmi_ifnum = iface;
+ if (!driver_data.selected_smi)
+ driver_data.selected_smi = ipmi_device;
+ list_add_tail(&ipmi_device->head, &driver_data.ipmi_devices);
mutex_unlock(&driver_data.ipmi_lock);
- memcpy(&ipmi_device->smi_data, &smi_data, sizeof(struct ipmi_smi_info));
+
+ put_device(smi_data.dev);
return;
-out:
+err_lock:
mutex_unlock(&driver_data.ipmi_lock);
+ ipmi_dev_release(ipmi_device);
+err_ref:
put_device(smi_data.dev);
return;
}
static void ipmi_bmc_gone(int iface)
{
struct acpi_ipmi_device *ipmi_device, *temp;
+ bool dev_found = false;
mutex_lock(&driver_data.ipmi_lock);
list_for_each_entry_safe(ipmi_device, temp,
- &driver_data.ipmi_devices, head) {
- if (ipmi_device->ipmi_ifnum != iface)
- continue;
-
- acpi_remove_ipmi_device(ipmi_device);
- put_device(ipmi_device->smi_data.dev);
- kfree(ipmi_device);
- break;
+ &driver_data.ipmi_devices, head) {
+ if (ipmi_device->ipmi_ifnum != iface) {
+ dev_found = true;
+ __ipmi_dev_kill(ipmi_device);
+ break;
+ }
}
+ if (!driver_data.selected_smi)
+ driver_data.selected_smi = list_first_entry_or_null(
+ &driver_data.ipmi_devices,
+ struct acpi_ipmi_device, head);
mutex_unlock(&driver_data.ipmi_lock);
+
+ if (dev_found) {
+ ipmi_flush_tx_msg(ipmi_device);
+ acpi_ipmi_dev_put(ipmi_device);
+ }
}
-/* --------------------------------------------------------------------------
- * Address Space Management
- * -------------------------------------------------------------------------- */
+
/*
* This is the IPMI opregion space handler.
* @function: indicates the read/write. In fact as the IPMI message is driven
* the response IPMI message returned by IPMI command.
* @handler_context: IPMI device context.
*/
-
static acpi_status
acpi_ipmi_space_handler(u32 function, acpi_physical_address address,
- u32 bits, acpi_integer *value,
- void *handler_context, void *region_context)
+ u32 bits, acpi_integer *value,
+ void *handler_context, void *region_context)
{
struct acpi_ipmi_msg *tx_msg;
- struct acpi_ipmi_device *ipmi_device = handler_context;
- int err, rem_time;
+ struct acpi_ipmi_device *ipmi_device;
+ int err;
acpi_status status;
+ unsigned long flags;
+
/*
* IPMI opregion message.
* IPMI message is firstly written to the BMC and system software
if ((function & ACPI_IO_MASK) == ACPI_READ)
return AE_TYPE;
- if (!ipmi_device->user_interface)
+ tx_msg = ipmi_msg_alloc();
+ if (!tx_msg)
return AE_NOT_EXIST;
+ ipmi_device = tx_msg->device;
- tx_msg = acpi_alloc_ipmi_msg(ipmi_device);
- if (!tx_msg)
- return AE_NO_MEMORY;
+ if (acpi_format_ipmi_request(tx_msg, address, value) != 0) {
+ ipmi_msg_release(tx_msg);
+ return AE_TYPE;
+ }
- acpi_format_ipmi_msg(tx_msg, address, value);
- mutex_lock(&ipmi_device->tx_msg_lock);
+ acpi_ipmi_msg_get(tx_msg);
+ mutex_lock(&driver_data.ipmi_lock);
+ /* Do not add a tx_msg that can not be flushed. */
+ if (ipmi_device->dead) {
+ mutex_unlock(&driver_data.ipmi_lock);
+ ipmi_msg_release(tx_msg);
+ return AE_NOT_EXIST;
+ }
+ spin_lock_irqsave(&ipmi_device->tx_msg_lock, flags);
list_add_tail(&tx_msg->head, &ipmi_device->tx_msg_list);
- mutex_unlock(&ipmi_device->tx_msg_lock);
+ spin_unlock_irqrestore(&ipmi_device->tx_msg_lock, flags);
+ mutex_unlock(&driver_data.ipmi_lock);
+
err = ipmi_request_settime(ipmi_device->user_interface,
- &tx_msg->addr,
- tx_msg->tx_msgid,
- &tx_msg->tx_message,
- NULL, 0, 0, 0);
+ &tx_msg->addr,
+ tx_msg->tx_msgid,
+ &tx_msg->tx_message,
+ NULL, 0, 0, IPMI_TIMEOUT);
if (err) {
status = AE_ERROR;
- goto end_label;
+ goto out_msg;
}
- rem_time = wait_for_completion_timeout(&tx_msg->tx_complete,
- IPMI_TIMEOUT);
- acpi_format_ipmi_response(tx_msg, value, rem_time);
+ wait_for_completion(&tx_msg->tx_complete);
+
+ acpi_format_ipmi_response(tx_msg, value);
status = AE_OK;
-end_label:
- mutex_lock(&ipmi_device->tx_msg_lock);
- list_del(&tx_msg->head);
- mutex_unlock(&ipmi_device->tx_msg_lock);
- kfree(tx_msg);
+out_msg:
+ ipmi_cancel_tx_msg(ipmi_device, tx_msg);
+ acpi_ipmi_msg_put(tx_msg);
return status;
}
-static void ipmi_remove_space_handler(struct acpi_ipmi_device *ipmi)
-{
- if (!test_bit(IPMI_FLAGS_HANDLER_INSTALL, &ipmi->flags))
- return;
-
- acpi_remove_address_space_handler(ipmi->handle,
- ACPI_ADR_SPACE_IPMI, &acpi_ipmi_space_handler);
-
- clear_bit(IPMI_FLAGS_HANDLER_INSTALL, &ipmi->flags);
-}
-
-static int ipmi_install_space_handler(struct acpi_ipmi_device *ipmi)
+static int __init acpi_ipmi_init(void)
{
+ int result;
acpi_status status;
- if (test_bit(IPMI_FLAGS_HANDLER_INSTALL, &ipmi->flags))
+ if (acpi_disabled)
return 0;
- status = acpi_install_address_space_handler(ipmi->handle,
+ status = acpi_install_address_space_handler(ACPI_ROOT_OBJECT,
ACPI_ADR_SPACE_IPMI,
&acpi_ipmi_space_handler,
- NULL, ipmi);
+ NULL, NULL);
if (ACPI_FAILURE(status)) {
- struct pnp_dev *pnp_dev = ipmi->pnp_dev;
- dev_warn(&pnp_dev->dev, "Can't register IPMI opregion space "
- "handle\n");
+ pr_warn("Can't register IPMI opregion space handle\n");
return -EINVAL;
}
- set_bit(IPMI_FLAGS_HANDLER_INSTALL, &ipmi->flags);
- return 0;
-}
-
-static void acpi_add_ipmi_device(struct acpi_ipmi_device *ipmi_device)
-{
-
- INIT_LIST_HEAD(&ipmi_device->head);
-
- mutex_init(&ipmi_device->tx_msg_lock);
- INIT_LIST_HEAD(&ipmi_device->tx_msg_list);
- ipmi_install_space_handler(ipmi_device);
-
- list_add_tail(&ipmi_device->head, &driver_data.ipmi_devices);
-}
-
-static void acpi_remove_ipmi_device(struct acpi_ipmi_device *ipmi_device)
-{
- /*
- * If the IPMI user interface is created, it should be
- * destroyed.
- */
- if (ipmi_device->user_interface) {
- ipmi_destroy_user(ipmi_device->user_interface);
- ipmi_device->user_interface = NULL;
- }
- /* flush the Tx_msg list */
- if (!list_empty(&ipmi_device->tx_msg_list))
- ipmi_flush_tx_msg(ipmi_device);
-
- list_del(&ipmi_device->head);
- ipmi_remove_space_handler(ipmi_device);
-}
-
-static int __init acpi_ipmi_init(void)
-{
- int result = 0;
-
- if (acpi_disabled)
- return result;
-
- mutex_init(&driver_data.ipmi_lock);
-
result = ipmi_smi_watcher_register(&driver_data.bmc_events);
+ if (result)
+ pr_err("Can't register IPMI system interface watcher\n");
return result;
}
static void __exit acpi_ipmi_exit(void)
{
- struct acpi_ipmi_device *ipmi_device, *temp;
+ struct acpi_ipmi_device *ipmi_device;
if (acpi_disabled)
return;
* handler and free it.
*/
mutex_lock(&driver_data.ipmi_lock);
- list_for_each_entry_safe(ipmi_device, temp,
- &driver_data.ipmi_devices, head) {
- acpi_remove_ipmi_device(ipmi_device);
- put_device(ipmi_device->smi_data.dev);
- kfree(ipmi_device);
+ while (!list_empty(&driver_data.ipmi_devices)) {
+ ipmi_device = list_first_entry(&driver_data.ipmi_devices,
+ struct acpi_ipmi_device,
+ head);
+ __ipmi_dev_kill(ipmi_device);
+ mutex_unlock(&driver_data.ipmi_lock);
+
+ ipmi_flush_tx_msg(ipmi_device);
+ acpi_ipmi_dev_put(ipmi_device);
+
+ mutex_lock(&driver_data.ipmi_lock);
}
mutex_unlock(&driver_data.ipmi_lock);
+ acpi_remove_address_space_handler(ACPI_ROOT_OBJECT,
+ ACPI_ADR_SPACE_IPMI,
+ &acpi_ipmi_space_handler);
}
module_init(acpi_ipmi_init);
/* Offsets relative to LPSS_PRIVATE_OFFSET */
#define LPSS_GENERAL 0x08
#define LPSS_GENERAL_LTR_MODE_SW BIT(2)
+#define LPSS_GENERAL_UART_RTS_OVRD BIT(3)
#define LPSS_SW_LTR 0x10
#define LPSS_AUTO_LTR 0x14
#define LPSS_TX_INT 0x20
static void lpss_uart_setup(struct lpss_private_data *pdata)
{
- unsigned int tx_int_offset = pdata->dev_desc->prv_offset + LPSS_TX_INT;
+ unsigned int offset;
u32 reg;
- reg = readl(pdata->mmio_base + tx_int_offset);
- writel(reg | LPSS_TX_INT_MASK, pdata->mmio_base + tx_int_offset);
+ offset = pdata->dev_desc->prv_offset + LPSS_TX_INT;
+ reg = readl(pdata->mmio_base + offset);
+ writel(reg | LPSS_TX_INT_MASK, pdata->mmio_base + offset);
+
+ offset = pdata->dev_desc->prv_offset + LPSS_GENERAL;
+ reg = readl(pdata->mmio_base + offset);
+ writel(reg | LPSS_GENERAL_UART_RTS_OVRD, pdata->mmio_base + offset);
}
static struct lpss_device_desc lpt_dev_desc = {
unsigned long long current_status;
/* Get device present/absent information from the _STA */
- if (ACPI_FAILURE(acpi_evaluate_integer(mem_device->device->handle, "_STA",
- NULL, ¤t_status)))
+ if (ACPI_FAILURE(acpi_evaluate_integer(mem_device->device->handle,
+ METHOD_NAME__STA, NULL,
+ ¤t_status)))
return -ENODEV;
/*
* Check for device status. Device should be
if (!info->enabled)
continue;
- if (nid < 0)
+ if (nid == NUMA_NO_NODE)
nid = memory_add_physaddr_to_nid(info->start_addr);
acpi_unbind_memory_blocks(info, handle);
static const struct acpi_device_id acpi_platform_device_ids[] = {
{ "PNP0D40" },
+ { "ACPI0003" },
+ { "VPC2004" },
+ { "BCM4752" },
+
+ /* Intel Smart Sound Technology */
+ { "INT33C8" },
+ { "80860F28" },
{ }
};
int cpu_index, device_declaration = 0;
acpi_status status = AE_OK;
static int cpu0_initialized;
+ unsigned long long value;
acpi_processor_errata();
* Declared with "Device" statement; match _UID.
* Note that we don't handle string _UIDs yet.
*/
- unsigned long long value;
status = acpi_evaluate_integer(pr->handle, METHOD_NAME__UID,
NULL, &value);
if (ACPI_FAILURE(status)) {
* ensure we get the right value in the "physical id" field
* of /proc/cpuinfo
*/
- status = acpi_evaluate_object(pr->handle, "_SUN", NULL, &buffer);
+ status = acpi_evaluate_integer(pr->handle, "_SUN", NULL, &value);
if (ACPI_SUCCESS(status))
- arch_fix_phys_package_id(pr->id, object.integer.value);
+ arch_fix_phys_package_id(pr->id, value);
return 0;
}
ACPI_HW_DEPENDENT_RETURN_VOID(void
acpi_db_generate_gpe(char *gpe_arg,
char *block_arg))
+ ACPI_HW_DEPENDENT_RETURN_VOID(void acpi_db_generate_sci(void))
/*
* dbconvert - miscellaneous conversion routines
*/
- acpi_status acpi_db_hex_char_to_value(int hex_char, u8 *return_value);
+acpi_status acpi_db_hex_char_to_value(int hex_char, u8 *return_value);
acpi_status acpi_db_convert_to_package(char *string, union acpi_object *object);
void acpi_db_dump_namespace(char *start_arg, char *depth_arg);
+void acpi_db_dump_namespace_paths(void);
+
void acpi_db_dump_namespace_by_owner(char *owner_arg, char *depth_arg);
acpi_status acpi_db_find_name_in_namespace(char *name_arg);
*/
u32 ACPI_SYSTEM_XFACE acpi_ev_gpe_xrupt_handler(void *context);
-u32 acpi_ev_install_sci_handler(void);
+u32 acpi_ev_sci_dispatch(void);
-acpi_status acpi_ev_remove_sci_handler(void);
+u32 acpi_ev_install_sci_handler(void);
-u32 acpi_ev_initialize_SCI(u32 program_SCI);
+acpi_status acpi_ev_remove_all_sci_handlers(void);
ACPI_HW_DEPENDENT_RETURN_VOID(void acpi_ev_terminate(void))
#endif /* __ACEVENTS_H__ */
ACPI_EXTERN void *acpi_gbl_table_handler_context;
ACPI_EXTERN struct acpi_walk_state *acpi_gbl_breakpoint_walk;
ACPI_EXTERN acpi_interface_handler acpi_gbl_interface_handler;
+ACPI_EXTERN struct acpi_sci_handler_info *acpi_gbl_sci_handler_list;
/* Owner ID support */
ACPI_EXTERN u8 acpi_gbl_db_opt_stats;
ACPI_EXTERN u8 acpi_gbl_db_opt_ini_methods;
ACPI_EXTERN u8 acpi_gbl_db_opt_no_region_support;
-
-ACPI_EXTERN char *acpi_gbl_db_args[ACPI_DEBUGGER_MAX_ARGS];
-ACPI_EXTERN acpi_object_type acpi_gbl_db_arg_types[ACPI_DEBUGGER_MAX_ARGS];
-ACPI_EXTERN char acpi_gbl_db_line_buf[ACPI_DB_LINE_BUFFER_SIZE];
-ACPI_EXTERN char acpi_gbl_db_parsed_buf[ACPI_DB_LINE_BUFFER_SIZE];
-ACPI_EXTERN char acpi_gbl_db_scope_buf[80];
-ACPI_EXTERN char acpi_gbl_db_debug_filename[80];
ACPI_EXTERN u8 acpi_gbl_db_output_to_file;
ACPI_EXTERN char *acpi_gbl_db_buffer;
ACPI_EXTERN char *acpi_gbl_db_filename;
ACPI_EXTERN u32 acpi_gbl_db_console_debug_level;
ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_db_scope_node;
+ACPI_EXTERN char *acpi_gbl_db_args[ACPI_DEBUGGER_MAX_ARGS];
+ACPI_EXTERN acpi_object_type acpi_gbl_db_arg_types[ACPI_DEBUGGER_MAX_ARGS];
+
+/* These buffers should all be the same size */
+
+ACPI_EXTERN char acpi_gbl_db_line_buf[ACPI_DB_LINE_BUFFER_SIZE];
+ACPI_EXTERN char acpi_gbl_db_parsed_buf[ACPI_DB_LINE_BUFFER_SIZE];
+ACPI_EXTERN char acpi_gbl_db_scope_buf[ACPI_DB_LINE_BUFFER_SIZE];
+ACPI_EXTERN char acpi_gbl_db_debug_filename[ACPI_DB_LINE_BUFFER_SIZE];
+
/*
* Statistic globals
*/
*
****************************************************************************/
+/* Dispatch info for each host-installed SCI handler */
+
+struct acpi_sci_handler_info {
+ struct acpi_sci_handler_info *next;
+ acpi_sci_handler address; /* Address of handler */
+ void *context; /* Context to be passed to handler */
+};
+
/* Dispatch info for each GPE -- either a method or handler, cannot be both */
struct acpi_gpe_handler_info {
u8 display_type,
u32 max_depth,
acpi_owner_id owner_id, acpi_handle start_handle);
+
+void
+acpi_ns_dump_object_paths(acpi_object_type type,
+ u8 display_type,
+ u32 max_depth,
+ acpi_owner_id owner_id, acpi_handle start_handle);
#endif /* ACPI_FUTURE_USAGE */
/*
*
* FUNCTION: acpi_ev_get_gpe_xrupt_block
*
- * PARAMETERS: interrupt_number - Interrupt for a GPE block
+ * PARAMETERS: interrupt_number - Interrupt for a GPE block
*
* RETURN: A GPE interrupt block
*
status = acpi_ev_walk_gpe_list(acpi_hw_disable_gpe_block, NULL);
- /* Remove SCI handler */
-
- status = acpi_ev_remove_sci_handler();
- if (ACPI_FAILURE(status)) {
- ACPI_ERROR((AE_INFO, "Could not remove SCI handler"));
- }
-
status = acpi_ev_remove_global_lock_handler();
if (ACPI_FAILURE(status)) {
ACPI_ERROR((AE_INFO,
acpi_gbl_events_initialized = FALSE;
}
+ /* Remove SCI handlers */
+
+ status = acpi_ev_remove_all_sci_handlers();
+ if (ACPI_FAILURE(status)) {
+ ACPI_ERROR((AE_INFO, "Could not remove SCI handler"));
+ }
+
/* Deallocate all handler objects installed within GPE info structs */
status = acpi_ev_walk_gpe_list(acpi_ev_delete_gpe_handlers, NULL);
if (!(region_obj->region.flags & AOPOBJ_SETUP_COMPLETE)) {
region_obj->region.flags |= AOPOBJ_SETUP_COMPLETE;
- if (region_obj2->extra.region_context) {
-
- /* The handler for this region was already installed */
-
- ACPI_FREE(region_context);
- } else {
- /*
- * Save the returned context for use in all accesses to
- * this particular region
- */
+ /*
+ * Save the returned context for use in all accesses to
+ * the handler for this particular region
+ */
+ if (!(region_obj2->extra.region_context)) {
region_obj2->extra.region_context =
region_context;
}
handler_obj->address_space.
context, region_context);
+ /*
+ * region_context should have been released by the deactivate
+ * operation. We don't need access to it anymore here.
+ */
+ if (region_context) {
+ *region_context = NULL;
+ }
+
/* Init routine may fail, Just ignore errors */
if (ACPI_FAILURE(status)) {
/* Local prototypes */
static u32 ACPI_SYSTEM_XFACE acpi_ev_sci_xrupt_handler(void *context);
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_sci_dispatch
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status code indicates whether interrupt was handled.
+ *
+ * DESCRIPTION: Dispatch the SCI to all host-installed SCI handlers.
+ *
+ ******************************************************************************/
+
+u32 acpi_ev_sci_dispatch(void)
+{
+ struct acpi_sci_handler_info *sci_handler;
+ acpi_cpu_flags flags;
+ u32 int_status = ACPI_INTERRUPT_NOT_HANDLED;
+
+ ACPI_FUNCTION_NAME(ev_sci_dispatch);
+
+ /* Are there any host-installed SCI handlers? */
+
+ if (!acpi_gbl_sci_handler_list) {
+ return (int_status);
+ }
+
+ flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
+
+ /* Invoke all host-installed SCI handlers */
+
+ sci_handler = acpi_gbl_sci_handler_list;
+ while (sci_handler) {
+
+ /* Invoke the installed handler (at interrupt level) */
+
+ int_status |= sci_handler->address(sci_handler->context);
+
+ sci_handler = sci_handler->next;
+ }
+
+ acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
+ return (int_status);
+}
+
/*******************************************************************************
*
* FUNCTION: acpi_ev_sci_xrupt_handler
*/
interrupt_handled |= acpi_ev_gpe_detect(gpe_xrupt_list);
+ /* Invoke all host-installed SCI handlers */
+
+ interrupt_handled |= acpi_ev_sci_dispatch();
+
return_UINT32(interrupt_handled);
}
ACPI_FUNCTION_TRACE(ev_gpe_xrupt_handler);
/*
- * We are guaranteed by the ACPI CA initialization/shutdown code that
+ * We are guaranteed by the ACPICA initialization/shutdown code that
* if this interrupt handler is installed, ACPI is enabled.
*/
/* GPEs: Check for and dispatch any GPEs that have occurred */
interrupt_handled |= acpi_ev_gpe_detect(gpe_xrupt_list);
-
return_UINT32(interrupt_handled);
}
/******************************************************************************
*
- * FUNCTION: acpi_ev_remove_sci_handler
+ * FUNCTION: acpi_ev_remove_all_sci_handlers
*
* PARAMETERS: none
*
- * RETURN: E_OK if handler uninstalled OK, E_ERROR if handler was not
+ * RETURN: AE_OK if handler uninstalled, AE_ERROR if handler was not
* installed to begin with
*
* DESCRIPTION: Remove the SCI interrupt handler. No further SCIs will be
- * taken.
+ * taken. Remove all host-installed SCI handlers.
*
* Note: It doesn't seem important to disable all events or set the event
* enable registers to their original values. The OS should disable
*
******************************************************************************/
-acpi_status acpi_ev_remove_sci_handler(void)
+acpi_status acpi_ev_remove_all_sci_handlers(void)
{
+ struct acpi_sci_handler_info *sci_handler;
+ acpi_cpu_flags flags;
acpi_status status;
- ACPI_FUNCTION_TRACE(ev_remove_sci_handler);
+ ACPI_FUNCTION_TRACE(ev_remove_all_sci_handlers);
/* Just let the OS remove the handler and disable the level */
acpi_os_remove_interrupt_handler((u32) acpi_gbl_FADT.sci_interrupt,
acpi_ev_sci_xrupt_handler);
+ if (!acpi_gbl_sci_handler_list) {
+ return (status);
+ }
+
+ flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
+
+ /* Free all host-installed SCI handlers */
+
+ while (acpi_gbl_sci_handler_list) {
+ sci_handler = acpi_gbl_sci_handler_list;
+ acpi_gbl_sci_handler_list = sci_handler->next;
+ ACPI_FREE(sci_handler);
+ }
+
+ acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
return_ACPI_STATUS(status);
}
#endif /* ACPI_FUTURE_USAGE */
#if (!ACPI_REDUCED_HARDWARE)
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_install_sci_handler
+ *
+ * PARAMETERS: address - Address of the handler
+ * context - Value passed to the handler on each SCI
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Install a handler for a System Control Interrupt.
+ *
+ ******************************************************************************/
+acpi_status acpi_install_sci_handler(acpi_sci_handler address, void *context)
+{
+ struct acpi_sci_handler_info *new_sci_handler;
+ struct acpi_sci_handler_info *sci_handler;
+ acpi_cpu_flags flags;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_install_sci_handler);
+
+ if (!address) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /* Allocate and init a handler object */
+
+ new_sci_handler = ACPI_ALLOCATE(sizeof(struct acpi_sci_handler_info));
+ if (!new_sci_handler) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ new_sci_handler->address = address;
+ new_sci_handler->context = context;
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+
+ /* Lock list during installation */
+
+ flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
+ sci_handler = acpi_gbl_sci_handler_list;
+
+ /* Ensure handler does not already exist */
+
+ while (sci_handler) {
+ if (address == sci_handler->address) {
+ status = AE_ALREADY_EXISTS;
+ goto unlock_and_exit;
+ }
+
+ sci_handler = sci_handler->next;
+ }
+
+ /* Install the new handler into the global list (at head) */
+
+ new_sci_handler->next = acpi_gbl_sci_handler_list;
+ acpi_gbl_sci_handler_list = new_sci_handler;
+
+ unlock_and_exit:
+
+ acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
+ (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+
+ exit:
+ if (ACPI_FAILURE(status)) {
+ ACPI_FREE(new_sci_handler);
+ }
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_remove_sci_handler
+ *
+ * PARAMETERS: address - Address of the handler
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Remove a handler for a System Control Interrupt.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_remove_sci_handler(acpi_sci_handler address)
+{
+ struct acpi_sci_handler_info *prev_sci_handler;
+ struct acpi_sci_handler_info *next_sci_handler;
+ acpi_cpu_flags flags;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_remove_sci_handler);
+
+ if (!address) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Remove the SCI handler with lock */
+
+ flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
+
+ prev_sci_handler = NULL;
+ next_sci_handler = acpi_gbl_sci_handler_list;
+ while (next_sci_handler) {
+ if (next_sci_handler->address == address) {
+
+ /* Unlink and free the SCI handler info block */
+
+ if (prev_sci_handler) {
+ prev_sci_handler->next = next_sci_handler->next;
+ } else {
+ acpi_gbl_sci_handler_list =
+ next_sci_handler->next;
+ }
+
+ acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
+ ACPI_FREE(next_sci_handler);
+ goto unlock_and_exit;
+ }
+
+ prev_sci_handler = next_sci_handler;
+ next_sci_handler = next_sci_handler->next;
+ }
+
+ acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
+ status = AE_NOT_EXIST;
+
+ unlock_and_exit:
+ (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+ return_ACPI_STATUS(status);
+}
+
/*******************************************************************************
*
* FUNCTION: acpi_install_global_event_handler
* Can be used to update event counters, etc.
*
******************************************************************************/
+
acpi_status
acpi_install_global_event_handler(acpi_gbl_event_handler handler, void *context)
{
******************************************************************************/
acpi_status acpi_read(u64 *return_value, struct acpi_generic_address *reg)
{
- u32 value;
+ u32 value_lo;
+ u32 value_hi;
u32 width;
u64 address;
acpi_status status;
return (status);
}
- /* Initialize entire 64-bit return value to zero */
-
- *return_value = 0;
- value = 0;
-
/*
- * Two address spaces supported: Memory or IO. PCI_Config is
+ * Two address spaces supported: Memory or I/O. PCI_Config is
* not supported here because the GAS structure is insufficient
*/
if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) {
}
} else { /* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */
+ value_lo = 0;
+ value_hi = 0;
+
width = reg->bit_width;
if (width == 64) {
width = 32; /* Break into two 32-bit transfers */
}
status = acpi_hw_read_port((acpi_io_address)
- address, &value, width);
+ address, &value_lo, width);
if (ACPI_FAILURE(status)) {
return (status);
}
- *return_value = value;
if (reg->bit_width == 64) {
/* Read the top 32 bits */
status = acpi_hw_read_port((acpi_io_address)
- (address + 4), &value, 32);
+ (address + 4), &value_hi,
+ 32);
if (ACPI_FAILURE(status)) {
return (status);
}
- *return_value |= ((u64)value << 32);
}
+
+ /* Set the return value only if status is AE_OK */
+
+ *return_value = (value_lo | ((u64)value_hi << 32));
}
ACPI_DEBUG_PRINT((ACPI_DB_IO,
ACPI_FORMAT_UINT64(address),
acpi_ut_get_region_name(reg->space_id)));
- return (status);
+ return (AE_OK);
}
ACPI_EXPORT_SYMBOL(acpi_read)
/* Current scope has no parent scope */
ACPI_ERROR((AE_INFO,
- "ACPI path has too many parent prefixes (^) "
- "- reached beyond root node"));
+ "%s: Path has too many parent prefixes (^) "
+ "- reached beyond root node",
+ pathname));
return_ACPI_STATUS(AE_NOT_FOUND);
}
}
#endif
#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
+
+#ifdef ACPI_FUTURE_USAGE
+static acpi_status
+acpi_ns_dump_one_object_path(acpi_handle obj_handle,
+ u32 level, void *context, void **return_value);
+
+static acpi_status
+acpi_ns_get_max_depth(acpi_handle obj_handle,
+ u32 level, void *context, void **return_value);
+#endif /* ACPI_FUTURE_USAGE */
+
/*******************************************************************************
*
* FUNCTION: acpi_ns_print_pathname
}
#endif /* ACPI_FUTURE_USAGE */
+#ifdef ACPI_FUTURE_USAGE
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_dump_one_object_path, acpi_ns_get_max_depth
+ *
+ * PARAMETERS: obj_handle - Node to be dumped
+ * level - Nesting level of the handle
+ * context - Passed into walk_namespace
+ * return_value - Not used
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Dump the full pathname to a namespace object. acp_ns_get_max_depth
+ * computes the maximum nesting depth in the namespace tree, in
+ * order to simplify formatting in acpi_ns_dump_one_object_path.
+ * These procedures are user_functions called by acpi_ns_walk_namespace.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ns_dump_one_object_path(acpi_handle obj_handle,
+ u32 level, void *context, void **return_value)
+{
+ u32 max_level = *((u32 *)context);
+ char *pathname;
+ struct acpi_namespace_node *node;
+ int path_indent;
+
+ if (!obj_handle) {
+ return (AE_OK);
+ }
+
+ node = acpi_ns_validate_handle(obj_handle);
+ pathname = acpi_ns_get_external_pathname(node);
+
+ path_indent = 1;
+ if (level <= max_level) {
+ path_indent = max_level - level + 1;
+ }
+
+ acpi_os_printf("%2d%*s%-12s%*s",
+ level, level, " ", acpi_ut_get_type_name(node->type),
+ path_indent, " ");
+
+ acpi_os_printf("%s\n", &pathname[1]);
+ ACPI_FREE(pathname);
+ return (AE_OK);
+}
+
+static acpi_status
+acpi_ns_get_max_depth(acpi_handle obj_handle,
+ u32 level, void *context, void **return_value)
+{
+ u32 *max_level = (u32 *)context;
+
+ if (level > *max_level) {
+ *max_level = level;
+ }
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_dump_object_paths
+ *
+ * PARAMETERS: type - Object type to be dumped
+ * display_type - 0 or ACPI_DISPLAY_SUMMARY
+ * max_depth - Maximum depth of dump. Use ACPI_UINT32_MAX
+ * for an effectively unlimited depth.
+ * owner_id - Dump only objects owned by this ID. Use
+ * ACPI_UINT32_MAX to match all owners.
+ * start_handle - Where in namespace to start/end search
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Dump full object pathnames within the loaded namespace. Uses
+ * acpi_ns_walk_namespace in conjunction with acpi_ns_dump_one_object_path.
+ *
+ ******************************************************************************/
+
+void
+acpi_ns_dump_object_paths(acpi_object_type type,
+ u8 display_type,
+ u32 max_depth,
+ acpi_owner_id owner_id, acpi_handle start_handle)
+{
+ acpi_status status;
+ u32 max_level = 0;
+
+ ACPI_FUNCTION_ENTRY();
+
+ /*
+ * Just lock the entire namespace for the duration of the dump.
+ * We don't want any changes to the namespace during this time,
+ * especially the temporary nodes since we are going to display
+ * them also.
+ */
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ acpi_os_printf("Could not acquire namespace mutex\n");
+ return;
+ }
+
+ /* Get the max depth of the namespace tree, for formatting later */
+
+ (void)acpi_ns_walk_namespace(type, start_handle, max_depth,
+ ACPI_NS_WALK_NO_UNLOCK |
+ ACPI_NS_WALK_TEMP_NODES,
+ acpi_ns_get_max_depth, NULL,
+ (void *)&max_level, NULL);
+
+ /* Now dump the entire namespace */
+
+ (void)acpi_ns_walk_namespace(type, start_handle, max_depth,
+ ACPI_NS_WALK_NO_UNLOCK |
+ ACPI_NS_WALK_TEMP_NODES,
+ acpi_ns_dump_one_object_path, NULL,
+ (void *)&max_level, NULL);
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+}
+#endif /* ACPI_FUTURE_USAGE */
+
/*******************************************************************************
*
* FUNCTION: acpi_ns_dump_entry
goto unlock_and_exit;
}
+ /* Now we can validate the starting node */
+
+ if (!acpi_ns_validate_handle(start_object)) {
+ status = AE_BAD_PARAMETER;
+ goto unlock_and_exit2;
+ }
+
status = acpi_ns_walk_namespace(type, start_object, max_depth,
ACPI_NS_WALK_UNLOCK,
descending_callback, ascending_callback,
context, return_value);
+ unlock_and_exit2:
(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
unlock_and_exit:
}
}
- /* FACS is the odd table, has no standard ACPI header and no checksum */
+ /* Always calculate checksum, ignore bad checksum if requested */
- if (!ACPI_COMPARE_NAME(&table_desc->signature, ACPI_SIG_FACS)) {
-
- /* Always calculate checksum, ignore bad checksum if requested */
-
- status =
- acpi_tb_verify_checksum(table_desc->pointer,
- table_desc->length);
- }
+ status =
+ acpi_tb_verify_checksum(table_desc->pointer, table_desc->length);
return_ACPI_STATUS(status);
}
ACPI_INFO((AE_INFO, "%4.4s %p %05X",
header->signature, ACPI_CAST_PTR(void, address),
header->length));
- } else if (ACPI_COMPARE_NAME(header->signature, ACPI_SIG_RSDP)) {
+ } else if (ACPI_VALIDATE_RSDP_SIG(header->signature)) {
/* RSDP has no common fields */
{
u8 checksum;
+ /*
+ * FACS/S3PT:
+ * They are the odd tables, have no standard ACPI header and no checksum
+ */
+
+ if (ACPI_COMPARE_NAME(table->signature, ACPI_SIG_S3PT) ||
+ ACPI_COMPARE_NAME(table->signature, ACPI_SIG_FACS)) {
+ return (AE_OK);
+ }
+
/* Compute the checksum on the table */
checksum = acpi_tb_checksum(ACPI_CAST_PTR(u8, table), length);
* Note: Sometimes there exists more than one RSDP in memory; the valid
* RSDP has a valid checksum, all others have an invalid checksum.
*/
- if (ACPI_STRNCMP((char *)rsdp->signature, ACPI_SIG_RSDP,
- sizeof(ACPI_SIG_RSDP) - 1) != 0) {
+ if (!ACPI_VALIDATE_RSDP_SIG(rsdp->signature)) {
/* Nope, BAD Signature */
* Display the module name, current line number, thread ID (if requested),
* current procedure nesting level, and the current procedure name
*/
- acpi_os_printf("%8s-%04ld ", module_name, line_number);
+ acpi_os_printf("%9s-%04ld ", module_name, line_number);
if (ACPI_LV_THREADS & acpi_dbg_level) {
acpi_os_printf("[%u] ", (u32)thread_id);
#if (!ACPI_REDUCED_HARDWARE)
- /* GPE support */
+ /* GPE/SCI support */
acpi_gbl_all_gpes_initialized = FALSE;
acpi_gbl_gpe_xrupt_list_head = NULL;
acpi_current_gpe_count = 0;
acpi_gbl_global_event_handler = NULL;
+ acpi_gbl_sci_handler_list = NULL;
#endif /* !ACPI_REDUCED_HARDWARE */
#include <linux/suspend.h>
#include <asm/unaligned.h>
-#ifdef CONFIG_ACPI_PROCFS_POWER
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <asm/uaccess.h>
-#endif
-
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
#include <linux/power_supply.h>
module_param(cache_time, uint, 0644);
MODULE_PARM_DESC(cache_time, "cache time in milliseconds");
-#ifdef CONFIG_ACPI_PROCFS_POWER
-extern struct proc_dir_entry *acpi_lock_battery_dir(void);
-extern void *acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);
-
-enum acpi_battery_files {
- info_tag = 0,
- state_tag,
- alarm_tag,
- ACPI_BATTERY_NUMFILES,
-};
-
-#endif
-
static const struct acpi_device_id battery_device_ids[] = {
{"PNP0C0A", 0},
{"", 0},
POWER_SUPPLY_PROP_SERIAL_NUMBER,
};
-#ifdef CONFIG_ACPI_PROCFS_POWER
-inline char *acpi_battery_units(struct acpi_battery *battery)
-{
- return (battery->power_unit == ACPI_BATTERY_POWER_UNIT_MA) ?
- "mA" : "mW";
-}
-#endif
-
/* --------------------------------------------------------------------------
Battery Management
-------------------------------------------------------------------------- */
sysfs_add_battery(battery);
}
-/* --------------------------------------------------------------------------
- FS Interface (/proc)
- -------------------------------------------------------------------------- */
-
-#ifdef CONFIG_ACPI_PROCFS_POWER
-static struct proc_dir_entry *acpi_battery_dir;
-
-static int acpi_battery_print_info(struct seq_file *seq, int result)
-{
- struct acpi_battery *battery = seq->private;
-
- if (result)
- goto end;
-
- seq_printf(seq, "present: %s\n",
- acpi_battery_present(battery) ? "yes" : "no");
- if (!acpi_battery_present(battery))
- goto end;
- if (battery->design_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
- seq_printf(seq, "design capacity: unknown\n");
- else
- seq_printf(seq, "design capacity: %d %sh\n",
- battery->design_capacity,
- acpi_battery_units(battery));
-
- if (battery->full_charge_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
- seq_printf(seq, "last full capacity: unknown\n");
- else
- seq_printf(seq, "last full capacity: %d %sh\n",
- battery->full_charge_capacity,
- acpi_battery_units(battery));
-
- seq_printf(seq, "battery technology: %srechargeable\n",
- (!battery->technology)?"non-":"");
-
- if (battery->design_voltage == ACPI_BATTERY_VALUE_UNKNOWN)
- seq_printf(seq, "design voltage: unknown\n");
- else
- seq_printf(seq, "design voltage: %d mV\n",
- battery->design_voltage);
- seq_printf(seq, "design capacity warning: %d %sh\n",
- battery->design_capacity_warning,
- acpi_battery_units(battery));
- seq_printf(seq, "design capacity low: %d %sh\n",
- battery->design_capacity_low,
- acpi_battery_units(battery));
- seq_printf(seq, "cycle count: %i\n", battery->cycle_count);
- seq_printf(seq, "capacity granularity 1: %d %sh\n",
- battery->capacity_granularity_1,
- acpi_battery_units(battery));
- seq_printf(seq, "capacity granularity 2: %d %sh\n",
- battery->capacity_granularity_2,
- acpi_battery_units(battery));
- seq_printf(seq, "model number: %s\n", battery->model_number);
- seq_printf(seq, "serial number: %s\n", battery->serial_number);
- seq_printf(seq, "battery type: %s\n", battery->type);
- seq_printf(seq, "OEM info: %s\n", battery->oem_info);
- end:
- if (result)
- seq_printf(seq, "ERROR: Unable to read battery info\n");
- return result;
-}
-
-static int acpi_battery_print_state(struct seq_file *seq, int result)
-{
- struct acpi_battery *battery = seq->private;
-
- if (result)
- goto end;
-
- seq_printf(seq, "present: %s\n",
- acpi_battery_present(battery) ? "yes" : "no");
- if (!acpi_battery_present(battery))
- goto end;
-
- seq_printf(seq, "capacity state: %s\n",
- (battery->state & 0x04) ? "critical" : "ok");
- if ((battery->state & 0x01) && (battery->state & 0x02))
- seq_printf(seq,
- "charging state: charging/discharging\n");
- else if (battery->state & 0x01)
- seq_printf(seq, "charging state: discharging\n");
- else if (battery->state & 0x02)
- seq_printf(seq, "charging state: charging\n");
- else
- seq_printf(seq, "charging state: charged\n");
-
- if (battery->rate_now == ACPI_BATTERY_VALUE_UNKNOWN)
- seq_printf(seq, "present rate: unknown\n");
- else
- seq_printf(seq, "present rate: %d %s\n",
- battery->rate_now, acpi_battery_units(battery));
-
- if (battery->capacity_now == ACPI_BATTERY_VALUE_UNKNOWN)
- seq_printf(seq, "remaining capacity: unknown\n");
- else
- seq_printf(seq, "remaining capacity: %d %sh\n",
- battery->capacity_now, acpi_battery_units(battery));
- if (battery->voltage_now == ACPI_BATTERY_VALUE_UNKNOWN)
- seq_printf(seq, "present voltage: unknown\n");
- else
- seq_printf(seq, "present voltage: %d mV\n",
- battery->voltage_now);
- end:
- if (result)
- seq_printf(seq, "ERROR: Unable to read battery state\n");
-
- return result;
-}
-
-static int acpi_battery_print_alarm(struct seq_file *seq, int result)
-{
- struct acpi_battery *battery = seq->private;
-
- if (result)
- goto end;
-
- if (!acpi_battery_present(battery)) {
- seq_printf(seq, "present: no\n");
- goto end;
- }
- seq_printf(seq, "alarm: ");
- if (!battery->alarm)
- seq_printf(seq, "unsupported\n");
- else
- seq_printf(seq, "%u %sh\n", battery->alarm,
- acpi_battery_units(battery));
- end:
- if (result)
- seq_printf(seq, "ERROR: Unable to read battery alarm\n");
- return result;
-}
-
-static ssize_t acpi_battery_write_alarm(struct file *file,
- const char __user * buffer,
- size_t count, loff_t * ppos)
-{
- int result = 0;
- char alarm_string[12] = { '\0' };
- struct seq_file *m = file->private_data;
- struct acpi_battery *battery = m->private;
-
- if (!battery || (count > sizeof(alarm_string) - 1))
- return -EINVAL;
- if (!acpi_battery_present(battery)) {
- result = -ENODEV;
- goto end;
- }
- if (copy_from_user(alarm_string, buffer, count)) {
- result = -EFAULT;
- goto end;
- }
- alarm_string[count] = '\0';
- battery->alarm = simple_strtol(alarm_string, NULL, 0);
- result = acpi_battery_set_alarm(battery);
- end:
- if (!result)
- return count;
- return result;
-}
-
-typedef int(*print_func)(struct seq_file *seq, int result);
-
-static print_func acpi_print_funcs[ACPI_BATTERY_NUMFILES] = {
- acpi_battery_print_info,
- acpi_battery_print_state,
- acpi_battery_print_alarm,
-};
-
-static int acpi_battery_read(int fid, struct seq_file *seq)
-{
- struct acpi_battery *battery = seq->private;
- int result = acpi_battery_update(battery);
- return acpi_print_funcs[fid](seq, result);
-}
-
-#define DECLARE_FILE_FUNCTIONS(_name) \
-static int acpi_battery_read_##_name(struct seq_file *seq, void *offset) \
-{ \
- return acpi_battery_read(_name##_tag, seq); \
-} \
-static int acpi_battery_##_name##_open_fs(struct inode *inode, struct file *file) \
-{ \
- return single_open(file, acpi_battery_read_##_name, PDE_DATA(inode)); \
-}
-
-DECLARE_FILE_FUNCTIONS(info);
-DECLARE_FILE_FUNCTIONS(state);
-DECLARE_FILE_FUNCTIONS(alarm);
-
-#undef DECLARE_FILE_FUNCTIONS
-
-#define FILE_DESCRIPTION_RO(_name) \
- { \
- .name = __stringify(_name), \
- .mode = S_IRUGO, \
- .ops = { \
- .open = acpi_battery_##_name##_open_fs, \
- .read = seq_read, \
- .llseek = seq_lseek, \
- .release = single_release, \
- .owner = THIS_MODULE, \
- }, \
- }
-
-#define FILE_DESCRIPTION_RW(_name) \
- { \
- .name = __stringify(_name), \
- .mode = S_IFREG | S_IRUGO | S_IWUSR, \
- .ops = { \
- .open = acpi_battery_##_name##_open_fs, \
- .read = seq_read, \
- .llseek = seq_lseek, \
- .write = acpi_battery_write_##_name, \
- .release = single_release, \
- .owner = THIS_MODULE, \
- }, \
- }
-
-static const struct battery_file {
- struct file_operations ops;
- umode_t mode;
- const char *name;
-} acpi_battery_file[] = {
- FILE_DESCRIPTION_RO(info),
- FILE_DESCRIPTION_RO(state),
- FILE_DESCRIPTION_RW(alarm),
-};
-
-#undef FILE_DESCRIPTION_RO
-#undef FILE_DESCRIPTION_RW
-
-static int acpi_battery_add_fs(struct acpi_device *device)
-{
- struct proc_dir_entry *entry = NULL;
- int i;
-
- printk(KERN_WARNING PREFIX "Deprecated procfs I/F for battery is loaded,"
- " please retry with CONFIG_ACPI_PROCFS_POWER cleared\n");
- if (!acpi_device_dir(device)) {
- acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
- acpi_battery_dir);
- if (!acpi_device_dir(device))
- return -ENODEV;
- }
-
- for (i = 0; i < ACPI_BATTERY_NUMFILES; ++i) {
- entry = proc_create_data(acpi_battery_file[i].name,
- acpi_battery_file[i].mode,
- acpi_device_dir(device),
- &acpi_battery_file[i].ops,
- acpi_driver_data(device));
- if (!entry)
- return -ENODEV;
- }
- return 0;
-}
-
-static void acpi_battery_remove_fs(struct acpi_device *device)
-{
- int i;
- if (!acpi_device_dir(device))
- return;
- for (i = 0; i < ACPI_BATTERY_NUMFILES; ++i)
- remove_proc_entry(acpi_battery_file[i].name,
- acpi_device_dir(device));
-
- remove_proc_entry(acpi_device_bid(device), acpi_battery_dir);
- acpi_device_dir(device) = NULL;
-}
-
-#endif
-
/* --------------------------------------------------------------------------
Driver Interface
-------------------------------------------------------------------------- */
result = acpi_battery_update(battery);
if (result)
goto fail;
-#ifdef CONFIG_ACPI_PROCFS_POWER
- result = acpi_battery_add_fs(device);
-#endif
- if (result) {
-#ifdef CONFIG_ACPI_PROCFS_POWER
- acpi_battery_remove_fs(device);
-#endif
- goto fail;
- }
printk(KERN_INFO PREFIX "%s Slot [%s] (battery %s)\n",
ACPI_BATTERY_DEVICE_NAME, acpi_device_bid(device),
return -EINVAL;
battery = acpi_driver_data(device);
unregister_pm_notifier(&battery->pm_nb);
-#ifdef CONFIG_ACPI_PROCFS_POWER
- acpi_battery_remove_fs(device);
-#endif
sysfs_remove_battery(battery);
mutex_destroy(&battery->lock);
mutex_destroy(&battery->sysfs_lock);
{
if (acpi_disabled)
return;
-#ifdef CONFIG_ACPI_PROCFS_POWER
- acpi_battery_dir = acpi_lock_battery_dir();
- if (!acpi_battery_dir)
- return;
-#endif
- if (acpi_bus_register_driver(&acpi_battery_driver) < 0) {
-#ifdef CONFIG_ACPI_PROCFS_POWER
- acpi_unlock_battery_dir(acpi_battery_dir);
-#endif
- return;
- }
- return;
+ acpi_bus_register_driver(&acpi_battery_driver);
}
static int __init acpi_battery_init(void)
static void __exit acpi_battery_exit(void)
{
acpi_bus_unregister_driver(&acpi_battery_driver);
-#ifdef CONFIG_ACPI_PROCFS_POWER
- acpi_unlock_battery_dir(acpi_battery_dir);
-#endif
}
module_init(acpi_battery_init);
},
},
{
+ .callback = dmi_disable_osi_vista,
+ .ident = "Toshiba NB100",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "NB100"),
+ },
+ },
+
+ /*
+ * The following machines have broken backlight support when reporting
+ * the Windows 2012 OSI, so disable it until their support is fixed.
+ */
+ {
.callback = dmi_disable_osi_win8,
.ident = "ASUS Zenbook Prime UX31A",
.matches = {
DMI_MATCH(DMI_PRODUCT_VERSION, "3259A2G"),
},
},
+ {
+ .callback = dmi_disable_osi_win8,
+ .ident = "ThinkPad Edge E530",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "3259CTO"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_win8,
+ .ident = "ThinkPad Edge E530",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "3259HJG"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_win8,
+ .ident = "Acer Aspire V5-573G",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer Aspire"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "V5-573G/Dazzle_HW"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_win8,
+ .ident = "Acer Aspire V5-572G",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer Aspire"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "V5-572G/Dazzle_CX"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_win8,
+ .ident = "ThinkPad T431s",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "20AACTO1WW"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_win8,
+ .ident = "ThinkPad T430",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "2349D15"),
+ },
+ },
/*
* BIOS invocation of _OSI(Linux) is almost always a BIOS bug.
switch (button->type) {
case ACPI_BUTTON_TYPE_POWER:
- input->evbit[0] = BIT_MASK(EV_KEY);
- set_bit(KEY_POWER, input->keybit);
+ input_set_capability(input, EV_KEY, KEY_POWER);
break;
case ACPI_BUTTON_TYPE_SLEEP:
- input->evbit[0] = BIT_MASK(EV_KEY);
- set_bit(KEY_SLEEP, input->keybit);
+ input_set_capability(input, EV_KEY, KEY_SLEEP);
break;
case ACPI_BUTTON_TYPE_LID:
- input->evbit[0] = BIT_MASK(EV_SW);
- set_bit(SW_LID, input->swbit);
+ input_set_capability(input, EV_SW, SW_LID);
break;
}
+++ /dev/null
-/*
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/acpi.h>
-#include <linux/types.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <acpi/acpi_bus.h>
-#include <acpi/acpi_drivers.h>
-
-#define PREFIX "ACPI: "
-
-ACPI_MODULE_NAME("cm_sbs");
-#define ACPI_AC_CLASS "ac_adapter"
-#define ACPI_BATTERY_CLASS "battery"
-#define _COMPONENT ACPI_SBS_COMPONENT
-static struct proc_dir_entry *acpi_ac_dir;
-static struct proc_dir_entry *acpi_battery_dir;
-
-static DEFINE_MUTEX(cm_sbs_mutex);
-
-static int lock_ac_dir_cnt;
-static int lock_battery_dir_cnt;
-
-struct proc_dir_entry *acpi_lock_ac_dir(void)
-{
- mutex_lock(&cm_sbs_mutex);
- if (!acpi_ac_dir)
- acpi_ac_dir = proc_mkdir(ACPI_AC_CLASS, acpi_root_dir);
- if (acpi_ac_dir) {
- lock_ac_dir_cnt++;
- } else {
- printk(KERN_ERR PREFIX
- "Cannot create %s\n", ACPI_AC_CLASS);
- }
- mutex_unlock(&cm_sbs_mutex);
- return acpi_ac_dir;
-}
-EXPORT_SYMBOL(acpi_lock_ac_dir);
-
-void acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir_param)
-{
- mutex_lock(&cm_sbs_mutex);
- if (acpi_ac_dir_param)
- lock_ac_dir_cnt--;
- if (lock_ac_dir_cnt == 0 && acpi_ac_dir_param && acpi_ac_dir) {
- remove_proc_entry(ACPI_AC_CLASS, acpi_root_dir);
- acpi_ac_dir = NULL;
- }
- mutex_unlock(&cm_sbs_mutex);
-}
-EXPORT_SYMBOL(acpi_unlock_ac_dir);
-
-struct proc_dir_entry *acpi_lock_battery_dir(void)
-{
- mutex_lock(&cm_sbs_mutex);
- if (!acpi_battery_dir) {
- acpi_battery_dir =
- proc_mkdir(ACPI_BATTERY_CLASS, acpi_root_dir);
- }
- if (acpi_battery_dir) {
- lock_battery_dir_cnt++;
- } else {
- printk(KERN_ERR PREFIX
- "Cannot create %s\n", ACPI_BATTERY_CLASS);
- }
- mutex_unlock(&cm_sbs_mutex);
- return acpi_battery_dir;
-}
-EXPORT_SYMBOL(acpi_lock_battery_dir);
-
-void acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir_param)
-{
- mutex_lock(&cm_sbs_mutex);
- if (acpi_battery_dir_param)
- lock_battery_dir_cnt--;
- if (lock_battery_dir_cnt == 0 && acpi_battery_dir_param
- && acpi_battery_dir) {
- remove_proc_entry(ACPI_BATTERY_CLASS, acpi_root_dir);
- acpi_battery_dir = NULL;
- }
- mutex_unlock(&cm_sbs_mutex);
- return;
-}
-EXPORT_SYMBOL(acpi_unlock_battery_dir);
/*
* If we were unsure about the device parent's power state up to this
* point, the fact that the device is in D0 implies that the parent has
- * to be in D0 too.
+ * to be in D0 too, except if ignore_parent is set.
*/
- if (device->parent && device->parent->power.state == ACPI_STATE_UNKNOWN
+ if (!device->power.flags.ignore_parent && device->parent
+ && device->parent->power.state == ACPI_STATE_UNKNOWN
&& result == ACPI_STATE_D0)
device->parent->power.state = ACPI_STATE_D0;
acpi_power_state_string(state));
return -ENODEV;
}
- if (device->parent && (state < device->parent->power.state)) {
+ if (!device->power.flags.ignore_parent &&
+ device->parent && (state < device->parent->power.state)) {
dev_warn(&device->dev,
"Cannot transition to power state %s for parent in %s\n",
acpi_power_state_string(state),
}
}
EXPORT_SYMBOL_GPL(acpi_dev_pm_detach);
-
-/**
- * acpi_dev_pm_add_dependent - Add physical device depending for PM.
- * @handle: Handle of ACPI device node.
- * @depdev: Device depending on that node for PM.
- */
-void acpi_dev_pm_add_dependent(acpi_handle handle, struct device *depdev)
-{
- struct acpi_device_physical_node *dep;
- struct acpi_device *adev;
-
- if (!depdev || acpi_bus_get_device(handle, &adev))
- return;
-
- mutex_lock(&adev->physical_node_lock);
-
- list_for_each_entry(dep, &adev->power_dependent, node)
- if (dep->dev == depdev)
- goto out;
-
- dep = kzalloc(sizeof(*dep), GFP_KERNEL);
- if (dep) {
- dep->dev = depdev;
- list_add_tail(&dep->node, &adev->power_dependent);
- }
-
- out:
- mutex_unlock(&adev->physical_node_lock);
-}
-EXPORT_SYMBOL_GPL(acpi_dev_pm_add_dependent);
-
-/**
- * acpi_dev_pm_remove_dependent - Remove physical device depending for PM.
- * @handle: Handle of ACPI device node.
- * @depdev: Device depending on that node for PM.
- */
-void acpi_dev_pm_remove_dependent(acpi_handle handle, struct device *depdev)
-{
- struct acpi_device_physical_node *dep;
- struct acpi_device *adev;
-
- if (!depdev || acpi_bus_get_device(handle, &adev))
- return;
-
- mutex_lock(&adev->physical_node_lock);
-
- list_for_each_entry(dep, &adev->power_dependent, node)
- if (dep->dev == depdev) {
- list_del(&dep->node);
- kfree(dep);
- break;
- }
-
- mutex_unlock(&adev->physical_node_lock);
-}
-EXPORT_SYMBOL_GPL(acpi_dev_pm_remove_dependent);
#endif /* CONFIG_PM */
acpi_status status;
struct acpi_object_list arg_list;
union acpi_object arg;
- struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+ unsigned long long value;
acpi_handle_info(ds->handle, "%s\n", dock ? "docking" : "undocking");
arg_list.pointer = &arg;
arg.type = ACPI_TYPE_INTEGER;
arg.integer.value = dock;
- status = acpi_evaluate_object(ds->handle, "_DCK", &arg_list, &buffer);
+ status = acpi_evaluate_integer(ds->handle, "_DCK", &arg_list, &value);
if (ACPI_FAILURE(status) && status != AE_NOT_FOUND)
acpi_handle_err(ds->handle, "Failed to execute _DCK (0x%x)\n",
status);
-
- kfree(buffer.pointer);
}
static inline void dock(struct dock_station *ds)
/* Uncomment next line to get verbose printout */
/* #define DEBUG */
+#define pr_fmt(fmt) "ACPI : EC: " fmt
#include <linux/kernel.h>
#include <linux/module.h>
#define ACPI_EC_DEVICE_NAME "Embedded Controller"
#define ACPI_EC_FILE_INFO "info"
-#undef PREFIX
-#define PREFIX "ACPI: EC: "
-
/* EC status register */
#define ACPI_EC_FLAG_OBF 0x01 /* Output buffer full */
#define ACPI_EC_FLAG_IBF 0x02 /* Input buffer full */
static inline u8 acpi_ec_read_status(struct acpi_ec *ec)
{
u8 x = inb(ec->command_addr);
- pr_debug(PREFIX "---> status = 0x%2.2x\n", x);
+ pr_debug("---> status = 0x%2.2x\n", x);
return x;
}
static inline u8 acpi_ec_read_data(struct acpi_ec *ec)
{
u8 x = inb(ec->data_addr);
- pr_debug(PREFIX "---> data = 0x%2.2x\n", x);
+ pr_debug("---> data = 0x%2.2x\n", x);
return x;
}
static inline void acpi_ec_write_cmd(struct acpi_ec *ec, u8 command)
{
- pr_debug(PREFIX "<--- command = 0x%2.2x\n", command);
+ pr_debug("<--- command = 0x%2.2x\n", command);
outb(command, ec->command_addr);
}
static inline void acpi_ec_write_data(struct acpi_ec *ec, u8 data)
{
- pr_debug(PREFIX "<--- data = 0x%2.2x\n", data);
+ pr_debug("<--- data = 0x%2.2x\n", data);
outb(data, ec->data_addr);
}
}
advance_transaction(ec, acpi_ec_read_status(ec));
} while (time_before(jiffies, delay));
- pr_debug(PREFIX "controller reset, restart transaction\n");
+ pr_debug("controller reset, restart transaction\n");
spin_lock_irqsave(&ec->lock, flags);
start_transaction(ec);
spin_unlock_irqrestore(&ec->lock, flags);
}
}
if (ec_wait_ibf0(ec)) {
- pr_err(PREFIX "input buffer is not empty, "
+ pr_err("input buffer is not empty, "
"aborting transaction\n");
status = -ETIME;
goto end;
}
- pr_debug(PREFIX "transaction start (cmd=0x%02x, addr=0x%02x)\n",
+ pr_debug("transaction start (cmd=0x%02x, addr=0x%02x)\n",
t->command, t->wdata ? t->wdata[0] : 0);
/* disable GPE during transaction if storm is detected */
if (test_bit(EC_FLAGS_GPE_STORM, &ec->flags)) {
/* It is safe to enable the GPE outside of the transaction. */
acpi_enable_gpe(NULL, ec->gpe);
} else if (t->irq_count > ec_storm_threshold) {
- pr_info(PREFIX "GPE storm detected(%d GPEs), "
+ pr_info("GPE storm detected(%d GPEs), "
"transactions will use polling mode\n",
t->irq_count);
set_bit(EC_FLAGS_GPE_STORM, &ec->flags);
}
- pr_debug(PREFIX "transaction end\n");
+ pr_debug("transaction end\n");
end:
if (ec->global_lock)
acpi_release_global_lock(glk);
struct acpi_ec_query_handler *handler = cxt;
if (!handler)
return;
- pr_debug(PREFIX "start query execution\n");
+ pr_debug("start query execution\n");
if (handler->func)
handler->func(handler->data);
else if (handler->handle)
acpi_evaluate_object(handler->handle, NULL, NULL, NULL);
- pr_debug(PREFIX "stop query execution\n");
+ pr_debug("stop query execution\n");
kfree(handler);
}
if (!copy)
return -ENOMEM;
memcpy(copy, handler, sizeof(*copy));
- pr_debug(PREFIX "push query execution (0x%2x) on queue\n", value);
+ pr_debug("push query execution (0x%2x) on queue\n",
+ value);
return acpi_os_execute((copy->func) ?
OSL_NOTIFY_HANDLER : OSL_GPE_HANDLER,
acpi_ec_run, copy);
{
if (state & ACPI_EC_FLAG_SCI) {
if (!test_and_set_bit(EC_FLAGS_QUERY_PENDING, &ec->flags)) {
- pr_debug(PREFIX "push gpe query to the queue\n");
+ pr_debug("push gpe query to the queue\n");
return acpi_os_execute(OSL_NOTIFY_HANDLER,
acpi_ec_gpe_query, ec);
}
struct acpi_ec *ec = data;
u8 status = acpi_ec_read_status(ec);
- pr_debug(PREFIX "~~~> interrupt, status:0x%02x\n", status);
+ pr_debug("~~~> interrupt, status:0x%02x\n", status);
advance_transaction(ec, status);
if (ec_transaction_done(ec) &&
* The AE_NOT_FOUND error will be ignored and OS
* continue to initialize EC.
*/
- printk(KERN_ERR "Fail in evaluating the _REG object"
+ pr_err("Fail in evaluating the _REG object"
" of EC device. Broken bios is suspected.\n");
} else {
acpi_remove_gpe_handler(NULL, ec->gpe,
acpi_disable_gpe(NULL, ec->gpe);
if (ACPI_FAILURE(acpi_remove_address_space_handler(ec->handle,
ACPI_ADR_SPACE_EC, &acpi_ec_space_handler)))
- pr_err(PREFIX "failed to remove space handler\n");
+ pr_err("failed to remove space handler\n");
if (ACPI_FAILURE(acpi_remove_gpe_handler(NULL, ec->gpe,
&acpi_ec_gpe_handler)))
- pr_err(PREFIX "failed to remove gpe handler\n");
+ pr_err("failed to remove gpe handler\n");
clear_bit(EC_FLAGS_HANDLERS_INSTALLED, &ec->flags);
}
ret = !!request_region(ec->command_addr, 1, "EC cmd");
WARN(!ret, "Could not request EC cmd io port 0x%lx", ec->command_addr);
- pr_info(PREFIX "GPE = 0x%lx, I/O: command/status = 0x%lx, data = 0x%lx\n",
+ pr_info("GPE = 0x%lx, I/O: command/status = 0x%lx, data = 0x%lx\n",
ec->gpe, ec->command_addr, ec->data_addr);
ret = ec_install_handlers(ec);
/* MSI EC needs special treatment, enable it */
static int ec_flag_msi(const struct dmi_system_id *id)
{
- printk(KERN_DEBUG PREFIX "Detected MSI hardware, enabling workarounds.\n");
+ pr_debug("Detected MSI hardware, enabling workarounds.\n");
EC_FLAGS_MSI = 1;
EC_FLAGS_VALIDATE_ECDT = 1;
return 0;
status = acpi_get_table(ACPI_SIG_ECDT, 1,
(struct acpi_table_header **)&ecdt_ptr);
if (ACPI_SUCCESS(status)) {
- pr_info(PREFIX "EC description table is found, configuring boot EC\n");
+ pr_info("EC description table is found, configuring boot EC\n");
boot_ec->command_addr = ecdt_ptr->control.address;
boot_ec->data_addr = ecdt_ptr->data.address;
boot_ec->gpe = ecdt_ptr->gpe;
/* This workaround is needed only on some broken machines,
* which require early EC, but fail to provide ECDT */
- printk(KERN_DEBUG PREFIX "Look up EC in DSDT\n");
+ pr_debug("Look up EC in DSDT\n");
status = acpi_get_devices(ec_device_ids[0].id, ec_parse_device,
boot_ec, NULL);
/* Check that acpi_get_devices actually find something */
saved_ec->data_addr != boot_ec->data_addr ||
saved_ec->gpe != boot_ec->gpe ||
saved_ec->handle != boot_ec->handle)
- pr_info(PREFIX "ASUSTek keeps feeding us with broken "
+ pr_info("ASUSTek keeps feeding us with broken "
"ECDT tables, which are very hard to workaround. "
"Trying to use DSDT EC info instead. Please send "
"output of acpidump to linux-acpi@vger.kernel.org\n");
acpi_device_name(device), acpi_device_bid(device),
!device->power.state ? "on" : "off");
- end:
+end:
return result;
}
Video
-------------------------------------------------------------------------- */
#if defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE)
-bool acpi_video_backlight_quirks(void);
-#else
-static inline bool acpi_video_backlight_quirks(void) { return false; }
+bool acpi_osi_is_win8(void);
#endif
#endif /* _ACPI_INTERNAL_H_ */
{
int node = pxm_to_node_map[pxm];
- if (node < 0) {
+ if (node == NUMA_NO_NODE) {
if (nodes_weight(nodes_found_map) >= MAX_NUMNODES)
return NUMA_NO_NODE;
node = first_unset_node(nodes_found_map);
int acpi_get_node(acpi_handle *handle)
{
- int pxm, node = -1;
+ int pxm, node = NUMA_NO_NODE;
pxm = acpi_get_pxm(handle);
if (pxm >= 0 && pxm < MAX_PXM_DOMAINS)
#define ACPI_HEADER_SIZE sizeof(struct acpi_table_header)
-/* Must not increase 10 or needs code modification below */
-#define ACPI_OVERRIDE_TABLES 10
+#define ACPI_OVERRIDE_TABLES 64
+static struct cpio_data __initdata acpi_initrd_files[ACPI_OVERRIDE_TABLES];
+
+#define MAP_CHUNK_SIZE (NR_FIX_BTMAPS << PAGE_SHIFT)
void __init acpi_initrd_override(void *data, size_t size)
{
struct acpi_table_header *table;
char cpio_path[32] = "kernel/firmware/acpi/";
struct cpio_data file;
- struct cpio_data early_initrd_files[ACPI_OVERRIDE_TABLES];
- char *p;
if (data == NULL || size == 0)
return;
table->signature, cpio_path, file.name, table->length);
all_tables_size += table->length;
- early_initrd_files[table_nr].data = file.data;
- early_initrd_files[table_nr].size = file.size;
+ acpi_initrd_files[table_nr].data = file.data;
+ acpi_initrd_files[table_nr].size = file.size;
table_nr++;
}
if (table_nr == 0)
memblock_reserve(acpi_tables_addr, all_tables_size);
arch_reserve_mem_area(acpi_tables_addr, all_tables_size);
- p = early_ioremap(acpi_tables_addr, all_tables_size);
-
+ /*
+ * early_ioremap only can remap 256k one time. If we map all
+ * tables one time, we will hit the limit. Need to map chunks
+ * one by one during copying the same as that in relocate_initrd().
+ */
for (no = 0; no < table_nr; no++) {
- memcpy(p + total_offset, early_initrd_files[no].data,
- early_initrd_files[no].size);
- total_offset += early_initrd_files[no].size;
+ unsigned char *src_p = acpi_initrd_files[no].data;
+ phys_addr_t size = acpi_initrd_files[no].size;
+ phys_addr_t dest_addr = acpi_tables_addr + total_offset;
+ phys_addr_t slop, clen;
+ char *dest_p;
+
+ total_offset += size;
+
+ while (size) {
+ slop = dest_addr & ~PAGE_MASK;
+ clen = size;
+ if (clen > MAP_CHUNK_SIZE - slop)
+ clen = MAP_CHUNK_SIZE - slop;
+ dest_p = early_ioremap(dest_addr & PAGE_MASK,
+ clen + slop);
+ memcpy(dest_p + slop, src_p, clen);
+ early_iounmap(dest_p, clen + slop);
+ src_p += clen;
+ dest_addr += clen;
+ size -= clen;
+ }
}
- early_iounmap(p, all_tables_size);
}
#endif /* CONFIG_ACPI_INITRD_TABLE_OVERRIDE */
void acpi_os_sleep(u64 ms)
{
- schedule_timeout_interruptible(msecs_to_jiffies(ms));
+ msleep(ms);
}
void acpi_os_stall(u32 us)
if (!str || !*str)
return 0;
- for (; count-- && str && *str; str++) {
+ for (; count-- && *str; str++) {
if (isalnum(*str) || *str == ' ' || *str == ':')
*p++ = *str;
else if (*str == '\'' || *str == '"')
#define ACPI_POWER_RESOURCE_STATE_ON 0x01
#define ACPI_POWER_RESOURCE_STATE_UNKNOWN 0xFF
-struct acpi_power_dependent_device {
- struct list_head node;
- struct acpi_device *adev;
- struct work_struct work;
-};
-
struct acpi_power_resource {
struct acpi_device device;
struct list_head list_node;
- struct list_head dependent;
char *name;
u32 system_level;
u32 order;
return 0;
}
-static void acpi_power_resume_dependent(struct work_struct *work)
-{
- struct acpi_power_dependent_device *dep;
- struct acpi_device_physical_node *pn;
- struct acpi_device *adev;
- int state;
-
- dep = container_of(work, struct acpi_power_dependent_device, work);
- adev = dep->adev;
- if (acpi_power_get_inferred_state(adev, &state))
- return;
-
- if (state > ACPI_STATE_D0)
- return;
-
- mutex_lock(&adev->physical_node_lock);
-
- list_for_each_entry(pn, &adev->physical_node_list, node)
- pm_request_resume(pn->dev);
-
- list_for_each_entry(pn, &adev->power_dependent, node)
- pm_request_resume(pn->dev);
-
- mutex_unlock(&adev->physical_node_lock);
-}
-
static int __acpi_power_on(struct acpi_power_resource *resource)
{
acpi_status status = AE_OK;
resource->name));
} else {
result = __acpi_power_on(resource);
- if (result) {
+ if (result)
resource->ref_count--;
- } else {
- struct acpi_power_dependent_device *dep;
-
- list_for_each_entry(dep, &resource->dependent, node)
- schedule_work(&dep->work);
- }
}
return result;
}
return result;
}
-static void acpi_power_add_dependent(struct acpi_power_resource *resource,
- struct acpi_device *adev)
-{
- struct acpi_power_dependent_device *dep;
-
- mutex_lock(&resource->resource_lock);
-
- list_for_each_entry(dep, &resource->dependent, node)
- if (dep->adev == adev)
- goto out;
-
- dep = kzalloc(sizeof(*dep), GFP_KERNEL);
- if (!dep)
- goto out;
-
- dep->adev = adev;
- INIT_WORK(&dep->work, acpi_power_resume_dependent);
- list_add_tail(&dep->node, &resource->dependent);
-
- out:
- mutex_unlock(&resource->resource_lock);
-}
-
-static void acpi_power_remove_dependent(struct acpi_power_resource *resource,
- struct acpi_device *adev)
-{
- struct acpi_power_dependent_device *dep;
- struct work_struct *work = NULL;
-
- mutex_lock(&resource->resource_lock);
-
- list_for_each_entry(dep, &resource->dependent, node)
- if (dep->adev == adev) {
- list_del(&dep->node);
- work = &dep->work;
- break;
- }
-
- mutex_unlock(&resource->resource_lock);
-
- if (work) {
- cancel_work_sync(work);
- kfree(dep);
- }
-}
-
static struct attribute *attrs[] = {
NULL,
};
void acpi_power_add_remove_device(struct acpi_device *adev, bool add)
{
- struct acpi_device_power_state *ps;
- struct acpi_power_resource_entry *entry;
int state;
if (adev->wakeup.flags.valid)
if (!adev->power.flags.power_resources)
return;
- ps = &adev->power.states[ACPI_STATE_D0];
- list_for_each_entry(entry, &ps->resources, node) {
- struct acpi_power_resource *resource = entry->resource;
-
- if (add)
- acpi_power_add_dependent(resource, adev);
- else
- acpi_power_remove_dependent(resource, adev);
- }
-
for (state = ACPI_STATE_D0; state <= ACPI_STATE_D3_HOT; state++)
acpi_power_expose_hide(adev,
&adev->power.states[state].resources,
acpi_init_device_object(device, handle, ACPI_BUS_TYPE_POWER,
ACPI_STA_DEFAULT);
mutex_init(&resource->resource_lock);
- INIT_LIST_HEAD(&resource->dependent);
INIT_LIST_HEAD(&resource->list_node);
resource->name = device->pnp.bus_id;
strcpy(acpi_device_name(device), ACPI_POWER_DEVICE_NAME);
mutex_lock(&resource->resource_lock);
result = acpi_power_get_state(resource->device.handle, &state);
- if (result)
+ if (result) {
+ mutex_unlock(&resource->resource_lock);
continue;
+ }
if (state == ACPI_POWER_RESOURCE_STATE_OFF
&& resource->ref_count) {
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
-#ifdef CONFIG_X86
-#include <linux/mc146818rtc.h>
-#endif
-
#include "sleep.h"
#define _COMPONENT ACPI_SYSTEM_COMPONENT
/*
* this file provides support for:
- * /proc/acpi/alarm
* /proc/acpi/wakeup
*/
ACPI_MODULE_NAME("sleep")
-#if defined(CONFIG_RTC_DRV_CMOS) || defined(CONFIG_RTC_DRV_CMOS_MODULE) || !defined(CONFIG_X86)
-/* use /sys/class/rtc/rtcX/wakealarm instead; it's not ACPI-specific */
-#else
-#define HAVE_ACPI_LEGACY_ALARM
-#endif
-
-#ifdef HAVE_ACPI_LEGACY_ALARM
-
-static u32 cmos_bcd_read(int offset, int rtc_control);
-
-static int acpi_system_alarm_seq_show(struct seq_file *seq, void *offset)
-{
- u32 sec, min, hr;
- u32 day, mo, yr, cent = 0;
- u32 today = 0;
- unsigned char rtc_control = 0;
- unsigned long flags;
-
- spin_lock_irqsave(&rtc_lock, flags);
-
- rtc_control = CMOS_READ(RTC_CONTROL);
- sec = cmos_bcd_read(RTC_SECONDS_ALARM, rtc_control);
- min = cmos_bcd_read(RTC_MINUTES_ALARM, rtc_control);
- hr = cmos_bcd_read(RTC_HOURS_ALARM, rtc_control);
-
- /* If we ever get an FACP with proper values... */
- if (acpi_gbl_FADT.day_alarm) {
- /* ACPI spec: only low 6 its should be cared */
- day = CMOS_READ(acpi_gbl_FADT.day_alarm) & 0x3F;
- if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
- day = bcd2bin(day);
- } else
- day = cmos_bcd_read(RTC_DAY_OF_MONTH, rtc_control);
- if (acpi_gbl_FADT.month_alarm)
- mo = cmos_bcd_read(acpi_gbl_FADT.month_alarm, rtc_control);
- else {
- mo = cmos_bcd_read(RTC_MONTH, rtc_control);
- today = cmos_bcd_read(RTC_DAY_OF_MONTH, rtc_control);
- }
- if (acpi_gbl_FADT.century)
- cent = cmos_bcd_read(acpi_gbl_FADT.century, rtc_control);
-
- yr = cmos_bcd_read(RTC_YEAR, rtc_control);
-
- spin_unlock_irqrestore(&rtc_lock, flags);
-
- /* we're trusting the FADT (see above) */
- if (!acpi_gbl_FADT.century)
- /* If we're not trusting the FADT, we should at least make it
- * right for _this_ century... ehm, what is _this_ century?
- *
- * TBD:
- * ASAP: find piece of code in the kernel, e.g. star tracker driver,
- * which we can trust to determine the century correctly. Atom
- * watch driver would be nice, too...
- *
- * if that has not happened, change for first release in 2050:
- * if (yr<50)
- * yr += 2100;
- * else
- * yr += 2000; // current line of code
- *
- * if that has not happened either, please do on 2099/12/31:23:59:59
- * s/2000/2100
- *
- */
- yr += 2000;
- else
- yr += cent * 100;
-
- /*
- * Show correct dates for alarms up to a month into the future.
- * This solves issues for nearly all situations with the common
- * 30-day alarm clocks in PC hardware.
- */
- if (day < today) {
- if (mo < 12) {
- mo += 1;
- } else {
- mo = 1;
- yr += 1;
- }
- }
-
- seq_printf(seq, "%4.4u-", yr);
- (mo > 12) ? seq_puts(seq, "**-") : seq_printf(seq, "%2.2u-", mo);
- (day > 31) ? seq_puts(seq, "** ") : seq_printf(seq, "%2.2u ", day);
- (hr > 23) ? seq_puts(seq, "**:") : seq_printf(seq, "%2.2u:", hr);
- (min > 59) ? seq_puts(seq, "**:") : seq_printf(seq, "%2.2u:", min);
- (sec > 59) ? seq_puts(seq, "**\n") : seq_printf(seq, "%2.2u\n", sec);
-
- return 0;
-}
-
-static int acpi_system_alarm_open_fs(struct inode *inode, struct file *file)
-{
- return single_open(file, acpi_system_alarm_seq_show, PDE_DATA(inode));
-}
-
-static int get_date_field(char **p, u32 * value)
-{
- char *next = NULL;
- char *string_end = NULL;
- int result = -EINVAL;
-
- /*
- * Try to find delimeter, only to insert null. The end of the
- * string won't have one, but is still valid.
- */
- if (*p == NULL)
- return result;
-
- next = strpbrk(*p, "- :");
- if (next)
- *next++ = '\0';
-
- *value = simple_strtoul(*p, &string_end, 10);
-
- /* Signal success if we got a good digit */
- if (string_end != *p)
- result = 0;
-
- if (next)
- *p = next;
- else
- *p = NULL;
-
- return result;
-}
-
-/* Read a possibly BCD register, always return binary */
-static u32 cmos_bcd_read(int offset, int rtc_control)
-{
- u32 val = CMOS_READ(offset);
- if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
- val = bcd2bin(val);
- return val;
-}
-
-/* Write binary value into possibly BCD register */
-static void cmos_bcd_write(u32 val, int offset, int rtc_control)
-{
- if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
- val = bin2bcd(val);
- CMOS_WRITE(val, offset);
-}
-
-static ssize_t
-acpi_system_write_alarm(struct file *file,
- const char __user * buffer, size_t count, loff_t * ppos)
-{
- int result = 0;
- char alarm_string[30] = { '\0' };
- char *p = alarm_string;
- u32 sec, min, hr, day, mo, yr;
- int adjust = 0;
- unsigned char rtc_control = 0;
-
- if (count > sizeof(alarm_string) - 1)
- return -EINVAL;
-
- if (copy_from_user(alarm_string, buffer, count))
- return -EFAULT;
-
- alarm_string[count] = '\0';
-
- /* check for time adjustment */
- if (alarm_string[0] == '+') {
- p++;
- adjust = 1;
- }
-
- if ((result = get_date_field(&p, &yr)))
- goto end;
- if ((result = get_date_field(&p, &mo)))
- goto end;
- if ((result = get_date_field(&p, &day)))
- goto end;
- if ((result = get_date_field(&p, &hr)))
- goto end;
- if ((result = get_date_field(&p, &min)))
- goto end;
- if ((result = get_date_field(&p, &sec)))
- goto end;
-
- spin_lock_irq(&rtc_lock);
-
- rtc_control = CMOS_READ(RTC_CONTROL);
-
- if (adjust) {
- yr += cmos_bcd_read(RTC_YEAR, rtc_control);
- mo += cmos_bcd_read(RTC_MONTH, rtc_control);
- day += cmos_bcd_read(RTC_DAY_OF_MONTH, rtc_control);
- hr += cmos_bcd_read(RTC_HOURS, rtc_control);
- min += cmos_bcd_read(RTC_MINUTES, rtc_control);
- sec += cmos_bcd_read(RTC_SECONDS, rtc_control);
- }
-
- spin_unlock_irq(&rtc_lock);
-
- if (sec > 59) {
- min += sec/60;
- sec = sec%60;
- }
- if (min > 59) {
- hr += min/60;
- min = min%60;
- }
- if (hr > 23) {
- day += hr/24;
- hr = hr%24;
- }
- if (day > 31) {
- mo += day/32;
- day = day%32;
- }
- if (mo > 12) {
- yr += mo/13;
- mo = mo%13;
- }
-
- spin_lock_irq(&rtc_lock);
- /*
- * Disable alarm interrupt before setting alarm timer or else
- * when ACPI_EVENT_RTC is enabled, a spurious ACPI interrupt occurs
- */
- rtc_control &= ~RTC_AIE;
- CMOS_WRITE(rtc_control, RTC_CONTROL);
- CMOS_READ(RTC_INTR_FLAGS);
-
- /* write the fields the rtc knows about */
- cmos_bcd_write(hr, RTC_HOURS_ALARM, rtc_control);
- cmos_bcd_write(min, RTC_MINUTES_ALARM, rtc_control);
- cmos_bcd_write(sec, RTC_SECONDS_ALARM, rtc_control);
-
- /*
- * If the system supports an enhanced alarm it will have non-zero
- * offsets into the CMOS RAM here -- which for some reason are pointing
- * to the RTC area of memory.
- */
- if (acpi_gbl_FADT.day_alarm)
- cmos_bcd_write(day, acpi_gbl_FADT.day_alarm, rtc_control);
- if (acpi_gbl_FADT.month_alarm)
- cmos_bcd_write(mo, acpi_gbl_FADT.month_alarm, rtc_control);
- if (acpi_gbl_FADT.century) {
- if (adjust)
- yr += cmos_bcd_read(acpi_gbl_FADT.century, rtc_control) * 100;
- cmos_bcd_write(yr / 100, acpi_gbl_FADT.century, rtc_control);
- }
- /* enable the rtc alarm interrupt */
- rtc_control |= RTC_AIE;
- CMOS_WRITE(rtc_control, RTC_CONTROL);
- CMOS_READ(RTC_INTR_FLAGS);
-
- spin_unlock_irq(&rtc_lock);
-
- acpi_clear_event(ACPI_EVENT_RTC);
- acpi_enable_event(ACPI_EVENT_RTC, 0);
-
- *ppos += count;
-
- result = 0;
- end:
- return result ? result : count;
-}
-#endif /* HAVE_ACPI_LEGACY_ALARM */
-
static int
acpi_system_wakeup_device_seq_show(struct seq_file *seq, void *offset)
{
.release = single_release,
};
-#ifdef HAVE_ACPI_LEGACY_ALARM
-static const struct file_operations acpi_system_alarm_fops = {
- .owner = THIS_MODULE,
- .open = acpi_system_alarm_open_fs,
- .read = seq_read,
- .write = acpi_system_write_alarm,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static u32 rtc_handler(void *context)
-{
- acpi_clear_event(ACPI_EVENT_RTC);
- acpi_disable_event(ACPI_EVENT_RTC, 0);
-
- return ACPI_INTERRUPT_HANDLED;
-}
-#endif /* HAVE_ACPI_LEGACY_ALARM */
-
int __init acpi_sleep_proc_init(void)
{
-#ifdef HAVE_ACPI_LEGACY_ALARM
- /* 'alarm' [R/W] */
- proc_create("alarm", S_IFREG | S_IRUGO | S_IWUSR,
- acpi_root_dir, &acpi_system_alarm_fops);
-
- acpi_install_fixed_event_handler(ACPI_EVENT_RTC, rtc_handler, NULL);
- /*
- * Disable the RTC event after installing RTC handler.
- * Only when RTC alarm is set will it be enabled.
- */
- acpi_clear_event(ACPI_EVENT_RTC);
- acpi_disable_event(ACPI_EVENT_RTC, 0);
-#endif /* HAVE_ACPI_LEGACY_ALARM */
-
/* 'wakeup device' [R/W] */
proc_create("wakeup", S_IFREG | S_IRUGO | S_IWUSR,
acpi_root_dir, &acpi_system_wakeup_device_fops);
static int acpi_processor_get_power_info_fadt(struct acpi_processor *pr)
{
- if (!pr)
- return -EINVAL;
-
if (!pr->pblk)
return -ENODEV;
if (disabled_by_idle_boot_param())
return 0;
- if (!pr)
- return -EINVAL;
-
- if (nocst) {
+ if (nocst)
return -ENODEV;
- }
if (!pr->flags.power_setup_done)
return -ENODEV;
if (disabled_by_idle_boot_param())
return 0;
- if (!pr)
- return -EINVAL;
-
if (nocst)
return -ENODEV;
first_run++;
}
- if (!pr)
- return -EINVAL;
-
if (acpi_gbl_FADT.cst_control && !nocst) {
status =
acpi_os_write_port(acpi_gbl_FADT.smi_command, acpi_gbl_FADT.cst_control, 8);
#include <linux/moduleparam.h>
#include <linux/kernel.h>
-#ifdef CONFIG_ACPI_PROCFS_POWER
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <asm/uaccess.h>
-#endif
-
#include <linux/acpi.h>
#include <linux/timer.h>
#include <linux/jiffies.h>
module_param(cache_time, uint, 0644);
MODULE_PARM_DESC(cache_time, "cache time in milliseconds");
-extern struct proc_dir_entry *acpi_lock_ac_dir(void);
-extern struct proc_dir_entry *acpi_lock_battery_dir(void);
-extern void acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir);
-extern void acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);
-
#define MAX_SBS_BAT 4
#define ACPI_SBS_BLOCK_MAX 32
struct acpi_battery {
struct power_supply bat;
struct acpi_sbs *sbs;
-#ifdef CONFIG_ACPI_PROCFS_POWER
- struct proc_dir_entry *proc_entry;
-#endif
unsigned long update_time;
char name[8];
char manufacturer_name[ACPI_SBS_BLOCK_MAX];
struct acpi_device *device;
struct acpi_smb_hc *hc;
struct mutex lock;
-#ifdef CONFIG_ACPI_PROCFS_POWER
- struct proc_dir_entry *charger_entry;
-#endif
struct acpi_battery battery[MAX_SBS_BAT];
u8 batteries_supported:4;
u8 manager_present:1;
.store = acpi_battery_alarm_store,
};
-/* --------------------------------------------------------------------------
- FS Interface (/proc/acpi)
- -------------------------------------------------------------------------- */
-
-#ifdef CONFIG_ACPI_PROCFS_POWER
-/* Generic Routines */
-static int
-acpi_sbs_add_fs(struct proc_dir_entry **dir,
- struct proc_dir_entry *parent_dir,
- char *dir_name,
- const struct file_operations *info_fops,
- const struct file_operations *state_fops,
- const struct file_operations *alarm_fops, void *data)
-{
- printk(KERN_WARNING PREFIX "Deprecated procfs I/F for SBS is loaded,"
- " please retry with CONFIG_ACPI_PROCFS_POWER cleared\n");
- if (!*dir) {
- *dir = proc_mkdir(dir_name, parent_dir);
- if (!*dir) {
- return -ENODEV;
- }
- }
-
- /* 'info' [R] */
- if (info_fops)
- proc_create_data(ACPI_SBS_FILE_INFO, S_IRUGO, *dir,
- info_fops, data);
-
- /* 'state' [R] */
- if (state_fops)
- proc_create_data(ACPI_SBS_FILE_STATE, S_IRUGO, *dir,
- state_fops, data);
-
- /* 'alarm' [R/W] */
- if (alarm_fops)
- proc_create_data(ACPI_SBS_FILE_ALARM, S_IRUGO, *dir,
- alarm_fops, data);
- return 0;
-}
-
-/* Smart Battery Interface */
-static struct proc_dir_entry *acpi_battery_dir = NULL;
-
-static inline char *acpi_battery_units(struct acpi_battery *battery)
-{
- return acpi_battery_mode(battery) ? " mW" : " mA";
-}
-
-
-static int acpi_battery_read_info(struct seq_file *seq, void *offset)
-{
- struct acpi_battery *battery = seq->private;
- struct acpi_sbs *sbs = battery->sbs;
- int result = 0;
-
- mutex_lock(&sbs->lock);
-
- seq_printf(seq, "present: %s\n",
- (battery->present) ? "yes" : "no");
- if (!battery->present)
- goto end;
-
- seq_printf(seq, "design capacity: %i%sh\n",
- battery->design_capacity * acpi_battery_scale(battery),
- acpi_battery_units(battery));
- seq_printf(seq, "last full capacity: %i%sh\n",
- battery->full_charge_capacity * acpi_battery_scale(battery),
- acpi_battery_units(battery));
- seq_printf(seq, "battery technology: rechargeable\n");
- seq_printf(seq, "design voltage: %i mV\n",
- battery->design_voltage * acpi_battery_vscale(battery));
- seq_printf(seq, "design capacity warning: unknown\n");
- seq_printf(seq, "design capacity low: unknown\n");
- seq_printf(seq, "cycle count: %i\n", battery->cycle_count);
- seq_printf(seq, "capacity granularity 1: unknown\n");
- seq_printf(seq, "capacity granularity 2: unknown\n");
- seq_printf(seq, "model number: %s\n", battery->device_name);
- seq_printf(seq, "serial number: %i\n",
- battery->serial_number);
- seq_printf(seq, "battery type: %s\n",
- battery->device_chemistry);
- seq_printf(seq, "OEM info: %s\n",
- battery->manufacturer_name);
- end:
- mutex_unlock(&sbs->lock);
- return result;
-}
-
-static int acpi_battery_info_open_fs(struct inode *inode, struct file *file)
-{
- return single_open(file, acpi_battery_read_info, PDE_DATA(inode));
-}
-
-static int acpi_battery_read_state(struct seq_file *seq, void *offset)
-{
- struct acpi_battery *battery = seq->private;
- struct acpi_sbs *sbs = battery->sbs;
- int rate;
-
- mutex_lock(&sbs->lock);
- seq_printf(seq, "present: %s\n",
- (battery->present) ? "yes" : "no");
- if (!battery->present)
- goto end;
-
- acpi_battery_get_state(battery);
- seq_printf(seq, "capacity state: %s\n",
- (battery->state & 0x0010) ? "critical" : "ok");
- seq_printf(seq, "charging state: %s\n",
- (battery->rate_now < 0) ? "discharging" :
- ((battery->rate_now > 0) ? "charging" : "charged"));
- rate = abs(battery->rate_now) * acpi_battery_ipscale(battery);
- rate *= (acpi_battery_mode(battery))?(battery->voltage_now *
- acpi_battery_vscale(battery)/1000):1;
- seq_printf(seq, "present rate: %d%s\n", rate,
- acpi_battery_units(battery));
- seq_printf(seq, "remaining capacity: %i%sh\n",
- battery->capacity_now * acpi_battery_scale(battery),
- acpi_battery_units(battery));
- seq_printf(seq, "present voltage: %i mV\n",
- battery->voltage_now * acpi_battery_vscale(battery));
-
- end:
- mutex_unlock(&sbs->lock);
- return 0;
-}
-
-static int acpi_battery_state_open_fs(struct inode *inode, struct file *file)
-{
- return single_open(file, acpi_battery_read_state, PDE_DATA(inode));
-}
-
-static int acpi_battery_read_alarm(struct seq_file *seq, void *offset)
-{
- struct acpi_battery *battery = seq->private;
- struct acpi_sbs *sbs = battery->sbs;
- int result = 0;
-
- mutex_lock(&sbs->lock);
-
- if (!battery->present) {
- seq_printf(seq, "present: no\n");
- goto end;
- }
-
- acpi_battery_get_alarm(battery);
- seq_printf(seq, "alarm: ");
- if (battery->alarm_capacity)
- seq_printf(seq, "%i%sh\n",
- battery->alarm_capacity *
- acpi_battery_scale(battery),
- acpi_battery_units(battery));
- else
- seq_printf(seq, "disabled\n");
- end:
- mutex_unlock(&sbs->lock);
- return result;
-}
-
-static ssize_t
-acpi_battery_write_alarm(struct file *file, const char __user * buffer,
- size_t count, loff_t * ppos)
-{
- struct seq_file *seq = file->private_data;
- struct acpi_battery *battery = seq->private;
- struct acpi_sbs *sbs = battery->sbs;
- char alarm_string[12] = { '\0' };
- int result = 0;
- mutex_lock(&sbs->lock);
- if (!battery->present) {
- result = -ENODEV;
- goto end;
- }
- if (count > sizeof(alarm_string) - 1) {
- result = -EINVAL;
- goto end;
- }
- if (copy_from_user(alarm_string, buffer, count)) {
- result = -EFAULT;
- goto end;
- }
- alarm_string[count] = 0;
- battery->alarm_capacity = simple_strtoul(alarm_string, NULL, 0) /
- acpi_battery_scale(battery);
- acpi_battery_set_alarm(battery);
- end:
- mutex_unlock(&sbs->lock);
- if (result)
- return result;
- return count;
-}
-
-static int acpi_battery_alarm_open_fs(struct inode *inode, struct file *file)
-{
- return single_open(file, acpi_battery_read_alarm, PDE_DATA(inode));
-}
-
-static const struct file_operations acpi_battery_info_fops = {
- .open = acpi_battery_info_open_fs,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
-};
-
-static const struct file_operations acpi_battery_state_fops = {
- .open = acpi_battery_state_open_fs,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
-};
-
-static const struct file_operations acpi_battery_alarm_fops = {
- .open = acpi_battery_alarm_open_fs,
- .read = seq_read,
- .write = acpi_battery_write_alarm,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
-};
-
-/* Legacy AC Adapter Interface */
-
-static struct proc_dir_entry *acpi_ac_dir = NULL;
-
-static int acpi_ac_read_state(struct seq_file *seq, void *offset)
-{
-
- struct acpi_sbs *sbs = seq->private;
-
- mutex_lock(&sbs->lock);
-
- seq_printf(seq, "state: %s\n",
- sbs->charger_present ? "on-line" : "off-line");
-
- mutex_unlock(&sbs->lock);
- return 0;
-}
-
-static int acpi_ac_state_open_fs(struct inode *inode, struct file *file)
-{
- return single_open(file, acpi_ac_read_state, PDE_DATA(inode));
-}
-
-static const struct file_operations acpi_ac_state_fops = {
- .open = acpi_ac_state_open_fs,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
-};
-
-#endif
-
/* --------------------------------------------------------------------------
Driver Interface
-------------------------------------------------------------------------- */
return result;
sprintf(battery->name, ACPI_BATTERY_DIR_NAME, id);
-#ifdef CONFIG_ACPI_PROCFS_POWER
- acpi_sbs_add_fs(&battery->proc_entry, acpi_battery_dir,
- battery->name, &acpi_battery_info_fops,
- &acpi_battery_state_fops, &acpi_battery_alarm_fops,
- battery);
-#endif
battery->bat.name = battery->name;
battery->bat.type = POWER_SUPPLY_TYPE_BATTERY;
if (!acpi_battery_mode(battery)) {
device_remove_file(battery->bat.dev, &alarm_attr);
power_supply_unregister(&battery->bat);
}
-#ifdef CONFIG_ACPI_PROCFS_POWER
- proc_remove(battery->proc_entry);
- battery->proc_entry = NULL;
-#endif
}
static int acpi_charger_add(struct acpi_sbs *sbs)
result = acpi_ac_get_present(sbs);
if (result)
goto end;
-#ifdef CONFIG_ACPI_PROCFS_POWER
- result = acpi_sbs_add_fs(&sbs->charger_entry, acpi_ac_dir,
- ACPI_AC_DIR_NAME, NULL,
- &acpi_ac_state_fops, NULL, sbs);
- if (result)
- goto end;
-#endif
+
sbs->charger.name = "sbs-charger";
sbs->charger.type = POWER_SUPPLY_TYPE_MAINS;
sbs->charger.properties = sbs_ac_props;
{
if (sbs->charger.dev)
power_supply_unregister(&sbs->charger);
-#ifdef CONFIG_ACPI_PROCFS_POWER
- proc_remove(sbs->charger_entry);
- sbs->charger_entry = NULL;
-#endif
}
static void acpi_sbs_callback(void *context)
return 0;
}
-static void acpi_sbs_rmdirs(void)
-{
-#ifdef CONFIG_ACPI_PROCFS_POWER
- if (acpi_ac_dir) {
- acpi_unlock_ac_dir(acpi_ac_dir);
- acpi_ac_dir = NULL;
- }
- if (acpi_battery_dir) {
- acpi_unlock_battery_dir(acpi_battery_dir);
- acpi_battery_dir = NULL;
- }
-#endif
-}
-
#ifdef CONFIG_PM_SLEEP
static int acpi_sbs_resume(struct device *dev)
{
if (acpi_disabled)
return -ENODEV;
-#ifdef CONFIG_ACPI_PROCFS_POWER
- acpi_ac_dir = acpi_lock_ac_dir();
- if (!acpi_ac_dir)
- return -ENODEV;
- acpi_battery_dir = acpi_lock_battery_dir();
- if (!acpi_battery_dir) {
- acpi_sbs_rmdirs();
- return -ENODEV;
- }
-#endif
+
result = acpi_bus_register_driver(&acpi_sbs_driver);
- if (result < 0) {
- acpi_sbs_rmdirs();
+ if (result < 0)
return -ENODEV;
- }
+
return 0;
}
static void __exit acpi_sbs_exit(void)
{
acpi_bus_unregister_driver(&acpi_sbs_driver);
- acpi_sbs_rmdirs();
return;
}
}
return 0;
}
-EXPORT_SYMBOL_GPL(acpi_bus_get_device);
+EXPORT_SYMBOL(acpi_bus_get_device);
int acpi_device_add(struct acpi_device *device,
void (*release)(struct device *))
INIT_LIST_HEAD(&device->wakeup_list);
INIT_LIST_HEAD(&device->physical_node_list);
mutex_init(&device->physical_node_lock);
- INIT_LIST_HEAD(&device->power_dependent);
new_bus_id = kzalloc(sizeof(struct acpi_device_bus_id), GFP_KERNEL);
if (!new_bus_id) {
EXPORT_SYMBOL(acpi_bus_register_driver);
/**
- * acpi_bus_unregister_driver - unregisters a driver with the APIC bus
+ * acpi_bus_unregister_driver - unregisters a driver with the ACPI bus
* @driver: driver to unregister
*
* Unregisters a driver with the ACPI bus. Searches the namespace for all
acpi_event_status status;
acpi_handle handle;
int result = 0;
+ unsigned long tmp;
if (index == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI) {
int i;
else if (!strcmp(buf, "clear\n") &&
(status & ACPI_EVENT_FLAG_SET))
result = acpi_clear_gpe(handle, index);
+ else if (!kstrtoul(buf, 0, &tmp))
+ all_counters[index].count = tmp;
else
- all_counters[index].count = strtoul(buf, NULL, 0);
+ result = -EINVAL;
} else if (index < num_gpes + ACPI_NUM_FIXED_EVENTS) {
int event = index - num_gpes;
if (!strcmp(buf, "disable\n") &&
else if (!strcmp(buf, "clear\n") &&
(status & ACPI_EVENT_FLAG_SET))
result = acpi_clear_event(event);
+ else if (!kstrtoul(buf, 0, &tmp))
+ all_counters[index].count = tmp;
else
- all_counters[index].count = strtoul(buf, NULL, 0);
+ result = -EINVAL;
} else
all_counters[index].count = strtoul(buf, NULL, 0);
if (!hotplug_kobj)
goto err_out;
- kobject_init(&hotplug->kobj, &acpi_hotplug_profile_ktype);
- error = kobject_set_name(&hotplug->kobj, "%s", name);
- if (error)
- goto err_out;
-
- hotplug->kobj.parent = hotplug_kobj;
- error = kobject_add(&hotplug->kobj, hotplug_kobj, NULL);
+ error = kobject_init_and_add(&hotplug->kobj,
+ &acpi_hotplug_profile_ktype, hotplug_kobj, "%s", name);
if (error)
goto err_out;
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"No critical threshold\n"));
} else if (tmp <= 2732) {
- printk(KERN_WARNING FW_BUG "Invalid critical threshold "
- "(%llu)\n", tmp);
+ pr_warn(FW_BUG "Invalid critical threshold (%llu)\n",
+ tmp);
tz->trips.critical.flags.valid = 0;
} else {
tz->trips.critical.flags.valid = 1;
* Allow override critical threshold
*/
if (crt_k > tz->trips.critical.temperature)
- printk(KERN_WARNING PREFIX
- "Critical threshold %d C\n", crt);
+ pr_warn(PREFIX "Critical threshold %d C\n",
+ crt);
tz->trips.critical.temperature = crt_k;
}
}
status = acpi_evaluate_reference(tz->device->handle, "_PSL",
NULL, &devices);
if (ACPI_FAILURE(status)) {
- printk(KERN_WARNING PREFIX
- "Invalid passive threshold\n");
+ pr_warn(PREFIX "Invalid passive threshold\n");
tz->trips.passive.flags.valid = 0;
}
else
status = acpi_evaluate_reference(tz->device->handle,
name, NULL, &devices);
if (ACPI_FAILURE(status)) {
- printk(KERN_WARNING PREFIX
- "Invalid active%d threshold\n", i);
+ pr_warn(PREFIX "Invalid active%d threshold\n",
+ i);
tz->trips.active[i].flags.valid = 0;
}
else
valid |= tz->trips.active[i].flags.valid;
if (!valid) {
- printk(KERN_WARNING FW_BUG "No valid trip found\n");
+ pr_warn(FW_BUG "No valid trip found\n");
return -ENODEV;
}
return 0;
acpi_bus_private_data_handler,
tz->thermal_zone);
if (ACPI_FAILURE(status)) {
- printk(KERN_ERR PREFIX
- "Error attaching device data\n");
+ pr_err(PREFIX "Error attaching device data\n");
return -ENODEV;
}
if (result)
goto free_memory;
- printk(KERN_INFO PREFIX "%s [%s] (%ld C)\n",
- acpi_device_name(device), acpi_device_bid(device),
- KELVIN_TO_CELSIUS(tz->temperature));
+ pr_info(PREFIX "%s [%s] (%ld C)\n", acpi_device_name(device),
+ acpi_device_bid(device), KELVIN_TO_CELSIUS(tz->temperature));
goto end;
free_memory:
static int thermal_act(const struct dmi_system_id *d) {
if (act == 0) {
- printk(KERN_NOTICE "ACPI: %s detected: "
- "disabling all active thermal trip points\n", d->ident);
+ pr_notice(PREFIX "%s detected: "
+ "disabling all active thermal trip points\n", d->ident);
act = -1;
}
return 0;
}
static int thermal_nocrt(const struct dmi_system_id *d) {
- printk(KERN_NOTICE "ACPI: %s detected: "
- "disabling all critical thermal trip point actions.\n", d->ident);
+ pr_notice(PREFIX "%s detected: "
+ "disabling all critical thermal trip point actions.\n", d->ident);
nocrt = 1;
return 0;
}
static int thermal_tzp(const struct dmi_system_id *d) {
if (tzp == 0) {
- printk(KERN_NOTICE "ACPI: %s detected: "
- "enabling thermal zone polling\n", d->ident);
+ pr_notice(PREFIX "%s detected: "
+ "enabling thermal zone polling\n", d->ident);
tzp = 300; /* 300 dS = 30 Seconds */
}
return 0;
static int thermal_psv(const struct dmi_system_id *d) {
if (psv == 0) {
- printk(KERN_NOTICE "ACPI: %s detected: "
- "disabling all passive thermal trip points\n", d->ident);
+ pr_notice(PREFIX "%s detected: "
+ "disabling all passive thermal trip points\n", d->ident);
psv = -1;
}
return 0;
dmi_check_system(thermal_dmi_table);
if (off) {
- printk(KERN_NOTICE "ACPI: thermal control disabled\n");
+ pr_notice(PREFIX "thermal control disabled\n");
return -ENODEV;
}
/*
* Validate output buffer.
*/
- if (buffer->length < size_required) {
+ if (buffer->length == ACPI_ALLOCATE_BUFFER) {
+ buffer->pointer = ACPI_ALLOCATE(size_required);
+ if (!buffer->pointer)
+ return AE_NO_MEMORY;
buffer->length = size_required;
- return AE_BUFFER_OVERFLOW;
- } else if (buffer->length != size_required || !buffer->pointer) {
- return AE_BAD_PARAMETER;
+ memset(buffer->pointer, 0, size_required);
+ } else {
+ if (buffer->length < size_required) {
+ buffer->length = size_required;
+ return AE_BUFFER_OVERFLOW;
+ } else if (buffer->length != size_required ||
+ !buffer->pointer) {
+ return AE_BAD_PARAMETER;
+ }
}
head = buffer->pointer;
static bool use_bios_initial_backlight = 1;
module_param(use_bios_initial_backlight, bool, 0644);
+/*
+ * For Windows 8 systems: if set ture and the GPU driver has
+ * registered a backlight interface, skip registering ACPI video's.
+ */
+static bool use_native_backlight = false;
+module_param(use_native_backlight, bool, 0644);
+
static int register_count;
+static struct mutex video_list_lock;
+static struct list_head video_bus_head;
static int acpi_video_bus_add(struct acpi_device *device);
static int acpi_video_bus_remove(struct acpi_device *device);
static void acpi_video_bus_notify(struct acpi_device *device, u32 event);
struct acpi_video_bus_flags flags;
struct list_head video_device_list;
struct mutex device_list_lock; /* protects video_device_list */
+ struct list_head entry;
struct input_dev *input;
char phys[32]; /* for input device */
struct notifier_block pm_nb;
static int acpi_video_switch_brightness(struct acpi_video_device *device,
int event);
+static bool acpi_video_verify_backlight_support(void)
+{
+ if (acpi_osi_is_win8() && use_native_backlight &&
+ backlight_device_registered(BACKLIGHT_RAW))
+ return false;
+ return acpi_video_backlight_support();
+}
+
/* backlight device sysfs support */
static int acpi_video_get_brightness(struct backlight_device *bd)
{
DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion m4 Notebook PC"),
},
},
+ {
+ .callback = video_ignore_initial_backlight,
+ .ident = "HP 250 G1",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP 250 G1 Notebook PC"),
+ },
+ },
{}
};
if (acpi_has_method(device->dev->handle, "_DDC"))
device->cap._DDC = 1;
-
- if (acpi_video_backlight_support()) {
- struct backlight_properties props;
- struct pci_dev *pdev;
- acpi_handle acpi_parent;
- struct device *parent = NULL;
- int result;
- static int count;
- char *name;
-
- result = acpi_video_init_brightness(device);
- if (result)
- return;
- name = kasprintf(GFP_KERNEL, "acpi_video%d", count);
- if (!name)
- return;
- count++;
-
- acpi_get_parent(device->dev->handle, &acpi_parent);
-
- pdev = acpi_get_pci_dev(acpi_parent);
- if (pdev) {
- parent = &pdev->dev;
- pci_dev_put(pdev);
- }
-
- memset(&props, 0, sizeof(struct backlight_properties));
- props.type = BACKLIGHT_FIRMWARE;
- props.max_brightness = device->brightness->count - 3;
- device->backlight = backlight_device_register(name,
- parent,
- device,
- &acpi_backlight_ops,
- &props);
- kfree(name);
- if (IS_ERR(device->backlight))
- return;
-
- /*
- * Save current brightness level in case we have to restore it
- * before acpi_video_device_lcd_set_level() is called next time.
- */
- device->backlight->props.brightness =
- acpi_video_get_brightness(device->backlight);
-
- device->cooling_dev = thermal_cooling_device_register("LCD",
- device->dev, &video_cooling_ops);
- if (IS_ERR(device->cooling_dev)) {
- /*
- * Set cooling_dev to NULL so we don't crash trying to
- * free it.
- * Also, why the hell we are returning early and
- * not attempt to register video output if cooling
- * device registration failed?
- * -- dtor
- */
- device->cooling_dev = NULL;
- return;
- }
-
- dev_info(&device->dev->dev, "registered as cooling_device%d\n",
- device->cooling_dev->id);
- result = sysfs_create_link(&device->dev->dev.kobj,
- &device->cooling_dev->device.kobj,
- "thermal_cooling");
- if (result)
- printk(KERN_ERR PREFIX "Create sysfs link\n");
- result = sysfs_create_link(&device->cooling_dev->device.kobj,
- &device->dev->dev.kobj, "device");
- if (result)
- printk(KERN_ERR PREFIX "Create sysfs link\n");
-
- }
}
/*
acpi_video_device_bind(video, data);
acpi_video_device_find_cap(data);
- status = acpi_install_notify_handler(device->handle, ACPI_DEVICE_NOTIFY,
- acpi_video_device_notify, data);
- if (ACPI_FAILURE(status))
- dev_err(&device->dev, "Error installing notify handler\n");
- else
- data->flags.notify = 1;
-
mutex_lock(&video->device_list_lock);
list_add_tail(&data->entry, &video->video_device_list);
mutex_unlock(&video->device_list_lock);
unsigned long long level_current, level_next;
int result = -EINVAL;
- /* no warning message if acpi_backlight=vendor is used */
- if (!acpi_video_backlight_support())
+ /* no warning message if acpi_backlight=vendor or a quirk is used */
+ if (!acpi_video_verify_backlight_support())
return 0;
if (!device->brightness)
return status;
}
-static int acpi_video_bus_put_one_device(struct acpi_video_device *device)
-{
- acpi_status status;
-
- if (!device || !device->video)
- return -ENOENT;
-
- if (device->flags.notify) {
- status = acpi_remove_notify_handler(device->dev->handle,
- ACPI_DEVICE_NOTIFY, acpi_video_device_notify);
- if (ACPI_FAILURE(status))
- dev_err(&device->dev->dev,
- "Can't remove video notify handler\n");
- }
-
- if (device->backlight) {
- backlight_device_unregister(device->backlight);
- device->backlight = NULL;
- }
- if (device->cooling_dev) {
- sysfs_remove_link(&device->dev->dev.kobj,
- "thermal_cooling");
- sysfs_remove_link(&device->cooling_dev->device.kobj,
- "device");
- thermal_cooling_device_unregister(device->cooling_dev);
- device->cooling_dev = NULL;
- }
-
- return 0;
-}
-
-static int acpi_video_bus_put_devices(struct acpi_video_bus *video)
-{
- int status;
- struct acpi_video_device *dev, *next;
-
- mutex_lock(&video->device_list_lock);
-
- list_for_each_entry_safe(dev, next, &video->video_device_list, entry) {
-
- status = acpi_video_bus_put_one_device(dev);
- if (ACPI_FAILURE(status))
- printk(KERN_WARNING PREFIX
- "hhuuhhuu bug in acpi video driver.\n");
-
- if (dev->brightness) {
- kfree(dev->brightness->levels);
- kfree(dev->brightness);
- }
- list_del(&dev->entry);
- kfree(dev);
- }
-
- mutex_unlock(&video->device_list_lock);
-
- return 0;
-}
-
/* acpi_video interface */
/*
static int acpi_video_bus_start_devices(struct acpi_video_bus *video)
{
return acpi_video_bus_DOS(video, 0,
- acpi_video_backlight_quirks() ? 1 : 0);
+ acpi_osi_is_win8() ? 1 : 0);
}
static int acpi_video_bus_stop_devices(struct acpi_video_bus *video)
{
return acpi_video_bus_DOS(video, 0,
- acpi_video_backlight_quirks() ? 0 : 1);
+ acpi_osi_is_win8() ? 0 : 1);
}
static void acpi_video_bus_notify(struct acpi_device *device, u32 event)
struct input_dev *input;
int keycode = 0;
- if (!video)
+ if (!video || !video->input)
return;
input = video->input;
return AE_OK;
}
+static void acpi_video_dev_register_backlight(struct acpi_video_device *device)
+{
+ if (acpi_video_verify_backlight_support()) {
+ struct backlight_properties props;
+ struct pci_dev *pdev;
+ acpi_handle acpi_parent;
+ struct device *parent = NULL;
+ int result;
+ static int count;
+ char *name;
+
+ result = acpi_video_init_brightness(device);
+ if (result)
+ return;
+ name = kasprintf(GFP_KERNEL, "acpi_video%d", count);
+ if (!name)
+ return;
+ count++;
+
+ acpi_get_parent(device->dev->handle, &acpi_parent);
+
+ pdev = acpi_get_pci_dev(acpi_parent);
+ if (pdev) {
+ parent = &pdev->dev;
+ pci_dev_put(pdev);
+ }
+
+ memset(&props, 0, sizeof(struct backlight_properties));
+ props.type = BACKLIGHT_FIRMWARE;
+ props.max_brightness = device->brightness->count - 3;
+ device->backlight = backlight_device_register(name,
+ parent,
+ device,
+ &acpi_backlight_ops,
+ &props);
+ kfree(name);
+ if (IS_ERR(device->backlight))
+ return;
+
+ /*
+ * Save current brightness level in case we have to restore it
+ * before acpi_video_device_lcd_set_level() is called next time.
+ */
+ device->backlight->props.brightness =
+ acpi_video_get_brightness(device->backlight);
+
+ device->cooling_dev = thermal_cooling_device_register("LCD",
+ device->dev, &video_cooling_ops);
+ if (IS_ERR(device->cooling_dev)) {
+ /*
+ * Set cooling_dev to NULL so we don't crash trying to
+ * free it.
+ * Also, why the hell we are returning early and
+ * not attempt to register video output if cooling
+ * device registration failed?
+ * -- dtor
+ */
+ device->cooling_dev = NULL;
+ return;
+ }
+
+ dev_info(&device->dev->dev, "registered as cooling_device%d\n",
+ device->cooling_dev->id);
+ result = sysfs_create_link(&device->dev->dev.kobj,
+ &device->cooling_dev->device.kobj,
+ "thermal_cooling");
+ if (result)
+ printk(KERN_ERR PREFIX "Create sysfs link\n");
+ result = sysfs_create_link(&device->cooling_dev->device.kobj,
+ &device->dev->dev.kobj, "device");
+ if (result)
+ printk(KERN_ERR PREFIX "Create sysfs link\n");
+ }
+}
+
+static int acpi_video_bus_register_backlight(struct acpi_video_bus *video)
+{
+ struct acpi_video_device *dev;
+
+ mutex_lock(&video->device_list_lock);
+ list_for_each_entry(dev, &video->video_device_list, entry)
+ acpi_video_dev_register_backlight(dev);
+ mutex_unlock(&video->device_list_lock);
+
+ video->pm_nb.notifier_call = acpi_video_resume;
+ video->pm_nb.priority = 0;
+ return register_pm_notifier(&video->pm_nb);
+}
+
+static void acpi_video_dev_unregister_backlight(struct acpi_video_device *device)
+{
+ if (device->backlight) {
+ backlight_device_unregister(device->backlight);
+ device->backlight = NULL;
+ }
+ if (device->brightness) {
+ kfree(device->brightness->levels);
+ kfree(device->brightness);
+ device->brightness = NULL;
+ }
+ if (device->cooling_dev) {
+ sysfs_remove_link(&device->dev->dev.kobj, "thermal_cooling");
+ sysfs_remove_link(&device->cooling_dev->device.kobj, "device");
+ thermal_cooling_device_unregister(device->cooling_dev);
+ device->cooling_dev = NULL;
+ }
+}
+
+static int acpi_video_bus_unregister_backlight(struct acpi_video_bus *video)
+{
+ struct acpi_video_device *dev;
+ int error = unregister_pm_notifier(&video->pm_nb);
+
+ mutex_lock(&video->device_list_lock);
+ list_for_each_entry(dev, &video->video_device_list, entry)
+ acpi_video_dev_unregister_backlight(dev);
+ mutex_unlock(&video->device_list_lock);
+
+ return error;
+}
+
+static void acpi_video_dev_add_notify_handler(struct acpi_video_device *device)
+{
+ acpi_status status;
+ struct acpi_device *adev = device->dev;
+
+ status = acpi_install_notify_handler(adev->handle, ACPI_DEVICE_NOTIFY,
+ acpi_video_device_notify, device);
+ if (ACPI_FAILURE(status))
+ dev_err(&adev->dev, "Error installing notify handler\n");
+ else
+ device->flags.notify = 1;
+}
+
+static int acpi_video_bus_add_notify_handler(struct acpi_video_bus *video)
+{
+ struct input_dev *input;
+ struct acpi_video_device *dev;
+ int error;
+
+ video->input = input = input_allocate_device();
+ if (!input) {
+ error = -ENOMEM;
+ goto out;
+ }
+
+ error = acpi_video_bus_start_devices(video);
+ if (error)
+ goto err_free_input;
+
+ snprintf(video->phys, sizeof(video->phys),
+ "%s/video/input0", acpi_device_hid(video->device));
+
+ input->name = acpi_device_name(video->device);
+ input->phys = video->phys;
+ input->id.bustype = BUS_HOST;
+ input->id.product = 0x06;
+ input->dev.parent = &video->device->dev;
+ input->evbit[0] = BIT(EV_KEY);
+ set_bit(KEY_SWITCHVIDEOMODE, input->keybit);
+ set_bit(KEY_VIDEO_NEXT, input->keybit);
+ set_bit(KEY_VIDEO_PREV, input->keybit);
+ set_bit(KEY_BRIGHTNESS_CYCLE, input->keybit);
+ set_bit(KEY_BRIGHTNESSUP, input->keybit);
+ set_bit(KEY_BRIGHTNESSDOWN, input->keybit);
+ set_bit(KEY_BRIGHTNESS_ZERO, input->keybit);
+ set_bit(KEY_DISPLAY_OFF, input->keybit);
+
+ error = input_register_device(input);
+ if (error)
+ goto err_stop_dev;
+
+ mutex_lock(&video->device_list_lock);
+ list_for_each_entry(dev, &video->video_device_list, entry)
+ acpi_video_dev_add_notify_handler(dev);
+ mutex_unlock(&video->device_list_lock);
+
+ return 0;
+
+err_stop_dev:
+ acpi_video_bus_stop_devices(video);
+err_free_input:
+ input_free_device(input);
+ video->input = NULL;
+out:
+ return error;
+}
+
+static void acpi_video_dev_remove_notify_handler(struct acpi_video_device *dev)
+{
+ if (dev->flags.notify) {
+ acpi_remove_notify_handler(dev->dev->handle, ACPI_DEVICE_NOTIFY,
+ acpi_video_device_notify);
+ dev->flags.notify = 0;
+ }
+}
+
+static void acpi_video_bus_remove_notify_handler(struct acpi_video_bus *video)
+{
+ struct acpi_video_device *dev;
+
+ mutex_lock(&video->device_list_lock);
+ list_for_each_entry(dev, &video->video_device_list, entry)
+ acpi_video_dev_remove_notify_handler(dev);
+ mutex_unlock(&video->device_list_lock);
+
+ acpi_video_bus_stop_devices(video);
+ input_unregister_device(video->input);
+ video->input = NULL;
+}
+
+static int acpi_video_bus_put_devices(struct acpi_video_bus *video)
+{
+ struct acpi_video_device *dev, *next;
+
+ mutex_lock(&video->device_list_lock);
+ list_for_each_entry_safe(dev, next, &video->video_device_list, entry) {
+ list_del(&dev->entry);
+ kfree(dev);
+ }
+ mutex_unlock(&video->device_list_lock);
+
+ return 0;
+}
+
static int instance;
static int acpi_video_bus_add(struct acpi_device *device)
{
struct acpi_video_bus *video;
- struct input_dev *input;
int error;
acpi_status status;
if (error)
goto err_put_video;
- video->input = input = input_allocate_device();
- if (!input) {
- error = -ENOMEM;
- goto err_put_video;
- }
-
- error = acpi_video_bus_start_devices(video);
- if (error)
- goto err_free_input_dev;
-
- snprintf(video->phys, sizeof(video->phys),
- "%s/video/input0", acpi_device_hid(video->device));
-
- input->name = acpi_device_name(video->device);
- input->phys = video->phys;
- input->id.bustype = BUS_HOST;
- input->id.product = 0x06;
- input->dev.parent = &device->dev;
- input->evbit[0] = BIT(EV_KEY);
- set_bit(KEY_SWITCHVIDEOMODE, input->keybit);
- set_bit(KEY_VIDEO_NEXT, input->keybit);
- set_bit(KEY_VIDEO_PREV, input->keybit);
- set_bit(KEY_BRIGHTNESS_CYCLE, input->keybit);
- set_bit(KEY_BRIGHTNESSUP, input->keybit);
- set_bit(KEY_BRIGHTNESSDOWN, input->keybit);
- set_bit(KEY_BRIGHTNESS_ZERO, input->keybit);
- set_bit(KEY_DISPLAY_OFF, input->keybit);
-
printk(KERN_INFO PREFIX "%s [%s] (multi-head: %s rom: %s post: %s)\n",
ACPI_VIDEO_DEVICE_NAME, acpi_device_bid(device),
video->flags.multihead ? "yes" : "no",
video->flags.rom ? "yes" : "no",
video->flags.post ? "yes" : "no");
+ mutex_lock(&video_list_lock);
+ list_add_tail(&video->entry, &video_bus_head);
+ mutex_unlock(&video_list_lock);
- video->pm_nb.notifier_call = acpi_video_resume;
- video->pm_nb.priority = 0;
- error = register_pm_notifier(&video->pm_nb);
- if (error)
- goto err_stop_video;
-
- error = input_register_device(input);
- if (error)
- goto err_unregister_pm_notifier;
+ acpi_video_bus_register_backlight(video);
+ acpi_video_bus_add_notify_handler(video);
return 0;
- err_unregister_pm_notifier:
- unregister_pm_notifier(&video->pm_nb);
- err_stop_video:
- acpi_video_bus_stop_devices(video);
- err_free_input_dev:
- input_free_device(input);
- err_put_video:
+err_put_video:
acpi_video_bus_put_devices(video);
kfree(video->attached_array);
- err_free_video:
+err_free_video:
kfree(video);
device->driver_data = NULL;
video = acpi_driver_data(device);
- unregister_pm_notifier(&video->pm_nb);
-
- acpi_video_bus_stop_devices(video);
+ acpi_video_bus_remove_notify_handler(video);
+ acpi_video_bus_unregister_backlight(video);
acpi_video_bus_put_devices(video);
- input_unregister_device(video->input);
+ mutex_lock(&video_list_lock);
+ list_del(&video->entry);
+ mutex_unlock(&video_list_lock);
+
kfree(video->attached_array);
kfree(video);
return 0;
}
+ mutex_init(&video_list_lock);
+ INIT_LIST_HEAD(&video_bus_head);
+
result = acpi_bus_register_driver(&acpi_video_bus);
if (result < 0)
return -ENODEV;
DMI_MATCH(DMI_PRODUCT_NAME, "UL30A"),
},
},
+ {
+ .callback = video_detect_force_vendor,
+ .ident = "Lenovo Yoga 13",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo IdeaPad Yoga 13"),
+ },
+ },
{ },
};
acpi_video_get_capabilities(NULL);
}
-bool acpi_video_backlight_quirks(void)
+bool acpi_osi_is_win8(void)
{
return acpi_gbl_osi_data >= ACPI_OSI_WIN_8;
}
-EXPORT_SYMBOL(acpi_video_backlight_quirks);
+EXPORT_SYMBOL(acpi_osi_is_win8);
/* Promote the vendor interface instead of the generic video module.
* This function allow DMI blacklists to be implemented by externals
if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
host->flags |= ATA_HOST_PARALLEL_SCAN;
else
- printk(KERN_INFO "ahci: SSS flag set, parallel bus scan disabled\n");
+ dev_info(&pdev->dev, "SSS flag set, parallel bus scan disabled\n");
if (pi.flags & ATA_FLAG_EM)
ahci_reset_em(host);
if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
host->flags |= ATA_HOST_PARALLEL_SCAN;
else
- printk(KERN_INFO "ahci: SSS flag set, parallel bus scan disabled\n");
+ dev_info(dev, "SSS flag set, parallel bus scan disabled\n");
if (pi.flags & ATA_FLAG_EM)
ahci_reset_em(host);
rc = ap->ops->transmit_led_message(ap,
emp->led_state,
4);
+ /*
+ * If busy, give a breather but do not
+ * release EH ownership by using msleep()
+ * instead of ata_msleep(). EM Transmit
+ * bit is busy for the whole host and
+ * releasing ownership will cause other
+ * ports to fail the same way.
+ */
if (rc == -EBUSY)
- ata_msleep(ap, 1);
+ msleep(1);
else
break;
}
{
ata_acpi_clear_gtf(dev);
}
-
-void ata_scsi_acpi_bind(struct ata_device *dev)
-{
- acpi_handle handle = ata_dev_acpi_handle(dev);
- if (handle)
- acpi_dev_pm_add_dependent(handle, &dev->sdev->sdev_gendev);
-}
-
-void ata_scsi_acpi_unbind(struct ata_device *dev)
-{
- acpi_handle handle = ata_dev_acpi_handle(dev);
- if (handle)
- acpi_dev_pm_remove_dependent(handle, &dev->sdev->sdev_gendev);
-}
* should be retried. To be used from EH.
*
* SCSI midlayer limits the number of retries to scmd->allowed.
- * scmd->retries is decremented for commands which get retried
+ * scmd->allowed is incremented for commands which get retried
* due to unrelated failures (qc->err_mask is zero).
*/
void ata_eh_qc_retry(struct ata_queued_cmd *qc)
{
struct scsi_cmnd *scmd = qc->scsicmd;
- if (!qc->err_mask && scmd->retries)
- scmd->retries--;
+ if (!qc->err_mask)
+ scmd->allowed++;
__ata_eh_qc_complete(qc);
}
if (!IS_ERR(sdev)) {
dev->sdev = sdev;
scsi_device_put(sdev);
- ata_scsi_acpi_bind(dev);
} else {
dev->sdev = NULL;
}
struct scsi_device *sdev;
unsigned long flags;
- ata_scsi_acpi_unbind(dev);
-
/* Alas, we need to grab scan_mutex to ensure SCSI device
* state doesn't change underneath us and thus
* scsi_device_get() always succeeds. The mutex locking can
extern void ata_acpi_bind_port(struct ata_port *ap);
extern void ata_acpi_bind_dev(struct ata_device *dev);
extern acpi_handle ata_dev_acpi_handle(struct ata_device *dev);
-extern void ata_scsi_acpi_bind(struct ata_device *dev);
-extern void ata_scsi_acpi_unbind(struct ata_device *dev);
#else
static inline void ata_acpi_dissociate(struct ata_host *host) { }
static inline int ata_acpi_on_suspend(struct ata_port *ap) { return 0; }
pm_message_t state) { }
static inline void ata_acpi_bind_port(struct ata_port *ap) {}
static inline void ata_acpi_bind_dev(struct ata_device *dev) {}
-static inline void ata_scsi_acpi_bind(struct ata_device *dev) {}
-static inline void ata_scsi_acpi_unbind(struct ata_device *dev) {}
#endif
/* libata-scsi.c */
ap->ioaddr.cmd_addr = cmd_addr;
- if (pnp_port_valid(idev, 1) == 0) {
+ if (pnp_port_valid(idev, 1)) {
ctl_addr = devm_ioport_map(&idev->dev,
pnp_port_start(idev, 1), 1);
ap->ioaddr.altstatus_addr = ctl_addr;
* sata_promise.c - Promise SATA
*
* Maintained by: Tejun Heo <tj@kernel.org>
- * Mikael Pettersson <mikpe@it.uu.se>
+ * Mikael Pettersson
* Please ALWAYS copy linux-ide@vger.kernel.org
* on emails.
*
*/
void device_shutdown(void)
{
- struct device *dev;
+ struct device *dev, *parent;
spin_lock(&devices_kset->list_lock);
/*
* prevent it from being freed because parent's
* lock is to be held
*/
- get_device(dev->parent);
+ parent = get_device(dev->parent);
get_device(dev);
/*
* Make sure the device is off the kset list, in the
spin_unlock(&devices_kset->list_lock);
/* hold lock to avoid race with probe/release */
- if (dev->parent)
- device_lock(dev->parent);
+ if (parent)
+ device_lock(parent);
device_lock(dev);
/* Don't allow any more runtime suspends */
}
device_unlock(dev);
- if (dev->parent)
- device_unlock(dev->parent);
+ if (parent)
+ device_unlock(parent);
put_device(dev);
- put_device(dev->parent);
+ put_device(parent);
spin_lock(&devices_kset->list_lock);
}
struct cpu *cpu = container_of(dev, struct cpu, dev);
int cpuid = dev->id;
int from_nid, to_nid;
- int ret = -ENODEV;
-
- cpu_hotplug_driver_lock();
+ int ret;
from_nid = cpu_to_node(cpuid);
if (from_nid == NUMA_NO_NODE)
- goto out;
+ return -ENODEV;
ret = cpu_up(cpuid);
/*
if (from_nid != to_nid)
change_cpu_under_node(cpu, from_nid, to_nid);
- out:
- cpu_hotplug_driver_unlock();
return ret;
}
static int cpu_subsys_offline(struct device *dev)
{
- int ret;
-
- cpu_hotplug_driver_lock();
- ret = cpu_down(dev->id);
- cpu_hotplug_driver_unlock();
- return ret;
+ return cpu_down(dev->id);
}
void unregister_cpu(struct cpu *cpu)
const char *buf,
size_t count)
{
- return arch_cpu_probe(buf, count);
+ ssize_t cnt;
+ int ret;
+
+ ret = lock_device_hotplug_sysfs();
+ if (ret)
+ return ret;
+
+ cnt = arch_cpu_probe(buf, count);
+
+ unlock_device_hotplug();
+ return cnt;
}
static ssize_t cpu_release_store(struct device *dev,
const char *buf,
size_t count)
{
- return arch_cpu_release(buf, count);
+ ssize_t cnt;
+ int ret;
+
+ ret = lock_device_hotplug_sysfs();
+ if (ret)
+ return ret;
+
+ cnt = arch_cpu_release(buf, count);
+
+ unlock_device_hotplug();
+ return cnt;
}
static DEVICE_ATTR(probe, S_IWUSR, NULL, cpu_probe_store);
online_type = ONLINE_KEEP;
else if (!strncmp(buf, "offline", min_t(int, count, 7)))
online_type = -1;
- else
- return -EINVAL;
+ else {
+ ret = -EINVAL;
+ goto err;
+ }
switch (online_type) {
case ONLINE_KERNEL:
ret = -EINVAL; /* should never happen */
}
+err:
unlock_device_hotplug();
if (ret)
#include <linux/suspend.h>
#include <trace/events/power.h>
#include <linux/cpuidle.h>
+#include <linux/timer.h>
+
#include "../base.h"
#include "power.h"
return error;
}
+#ifdef CONFIG_DPM_WATCHDOG
+struct dpm_watchdog {
+ struct device *dev;
+ struct task_struct *tsk;
+ struct timer_list timer;
+};
+
+#define DECLARE_DPM_WATCHDOG_ON_STACK(wd) \
+ struct dpm_watchdog wd
+
+/**
+ * dpm_watchdog_handler - Driver suspend / resume watchdog handler.
+ * @data: Watchdog object address.
+ *
+ * Called when a driver has timed out suspending or resuming.
+ * There's not much we can do here to recover so panic() to
+ * capture a crash-dump in pstore.
+ */
+static void dpm_watchdog_handler(unsigned long data)
+{
+ struct dpm_watchdog *wd = (void *)data;
+
+ dev_emerg(wd->dev, "**** DPM device timeout ****\n");
+ show_stack(wd->tsk, NULL);
+ panic("%s %s: unrecoverable failure\n",
+ dev_driver_string(wd->dev), dev_name(wd->dev));
+}
+
+/**
+ * dpm_watchdog_set - Enable pm watchdog for given device.
+ * @wd: Watchdog. Must be allocated on the stack.
+ * @dev: Device to handle.
+ */
+static void dpm_watchdog_set(struct dpm_watchdog *wd, struct device *dev)
+{
+ struct timer_list *timer = &wd->timer;
+
+ wd->dev = dev;
+ wd->tsk = current;
+
+ init_timer_on_stack(timer);
+ /* use same timeout value for both suspend and resume */
+ timer->expires = jiffies + HZ * CONFIG_DPM_WATCHDOG_TIMEOUT;
+ timer->function = dpm_watchdog_handler;
+ timer->data = (unsigned long)wd;
+ add_timer(timer);
+}
+
+/**
+ * dpm_watchdog_clear - Disable suspend/resume watchdog.
+ * @wd: Watchdog to disable.
+ */
+static void dpm_watchdog_clear(struct dpm_watchdog *wd)
+{
+ struct timer_list *timer = &wd->timer;
+
+ del_timer_sync(timer);
+ destroy_timer_on_stack(timer);
+}
+#else
+#define DECLARE_DPM_WATCHDOG_ON_STACK(wd)
+#define dpm_watchdog_set(x, y)
+#define dpm_watchdog_clear(x)
+#endif
+
/*------------------------- Resume routines -------------------------*/
/**
pm_callback_t callback = NULL;
char *info = NULL;
int error = 0;
+ DECLARE_DPM_WATCHDOG_ON_STACK(wd);
TRACE_DEVICE(dev);
TRACE_RESUME(0);
goto Complete;
dpm_wait(dev->parent, async);
+ dpm_watchdog_set(&wd, dev);
device_lock(dev);
/*
Unlock:
device_unlock(dev);
+ dpm_watchdog_clear(&wd);
Complete:
complete_all(&dev->power.completion);
pm_callback_t callback = NULL;
char *info = NULL;
int error = 0;
+ DECLARE_DPM_WATCHDOG_ON_STACK(wd);
dpm_wait_for_children(dev, async);
if (dev->power.syscore)
goto Complete;
+ dpm_watchdog_set(&wd, dev);
device_lock(dev);
if (dev->pm_domain) {
}
device_unlock(dev);
+ dpm_watchdog_clear(&wd);
Complete:
complete_all(&dev->power.completion);
#include <linux/list.h>
#include <linux/rculist.h>
#include <linux/rcupdate.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
#include <linux/of.h>
#include <linux/export.h>
*/
/**
- * struct opp - Generic OPP description structure
+ * struct dev_pm_opp - Generic OPP description structure
* @node: opp list node. The nodes are maintained throughout the lifetime
* of boot. It is expected only an optimal set of OPPs are
* added to the library by the SoC framework.
*
* This structure stores the OPP information for a given device.
*/
-struct opp {
+struct dev_pm_opp {
struct list_head node;
bool available;
}
/**
- * opp_get_voltage() - Gets the voltage corresponding to an available opp
+ * dev_pm_opp_get_voltage() - Gets the voltage corresponding to an available opp
* @opp: opp for which voltage has to be returned for
*
* Return voltage in micro volt corresponding to the opp, else
* prior to unlocking with rcu_read_unlock() to maintain the integrity of the
* pointer.
*/
-unsigned long opp_get_voltage(struct opp *opp)
+unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp)
{
- struct opp *tmp_opp;
+ struct dev_pm_opp *tmp_opp;
unsigned long v = 0;
tmp_opp = rcu_dereference(opp);
return v;
}
-EXPORT_SYMBOL_GPL(opp_get_voltage);
+EXPORT_SYMBOL_GPL(dev_pm_opp_get_voltage);
/**
- * opp_get_freq() - Gets the frequency corresponding to an available opp
+ * dev_pm_opp_get_freq() - Gets the frequency corresponding to an available opp
* @opp: opp for which frequency has to be returned for
*
* Return frequency in hertz corresponding to the opp, else
* prior to unlocking with rcu_read_unlock() to maintain the integrity of the
* pointer.
*/
-unsigned long opp_get_freq(struct opp *opp)
+unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp)
{
- struct opp *tmp_opp;
+ struct dev_pm_opp *tmp_opp;
unsigned long f = 0;
tmp_opp = rcu_dereference(opp);
return f;
}
-EXPORT_SYMBOL_GPL(opp_get_freq);
+EXPORT_SYMBOL_GPL(dev_pm_opp_get_freq);
/**
- * opp_get_opp_count() - Get number of opps available in the opp list
+ * dev_pm_opp_get_opp_count() - Get number of opps available in the opp list
* @dev: device for which we do this operation
*
* This function returns the number of available opps if there are any,
* internally references two RCU protected structures: device_opp and opp which
* are safe as long as we are under a common RCU locked section.
*/
-int opp_get_opp_count(struct device *dev)
+int dev_pm_opp_get_opp_count(struct device *dev)
{
struct device_opp *dev_opp;
- struct opp *temp_opp;
+ struct dev_pm_opp *temp_opp;
int count = 0;
dev_opp = find_device_opp(dev);
return count;
}
-EXPORT_SYMBOL_GPL(opp_get_opp_count);
+EXPORT_SYMBOL_GPL(dev_pm_opp_get_opp_count);
/**
- * opp_find_freq_exact() - search for an exact frequency
+ * dev_pm_opp_find_freq_exact() - search for an exact frequency
* @dev: device for which we do this operation
* @freq: frequency to search for
* @available: true/false - match for available opp
* under the locked area. The pointer returned must be used prior to unlocking
* with rcu_read_unlock() to maintain the integrity of the pointer.
*/
-struct opp *opp_find_freq_exact(struct device *dev, unsigned long freq,
- bool available)
+struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev,
+ unsigned long freq,
+ bool available)
{
struct device_opp *dev_opp;
- struct opp *temp_opp, *opp = ERR_PTR(-ERANGE);
+ struct dev_pm_opp *temp_opp, *opp = ERR_PTR(-ERANGE);
dev_opp = find_device_opp(dev);
if (IS_ERR(dev_opp)) {
return opp;
}
-EXPORT_SYMBOL_GPL(opp_find_freq_exact);
+EXPORT_SYMBOL_GPL(dev_pm_opp_find_freq_exact);
/**
- * opp_find_freq_ceil() - Search for an rounded ceil freq
+ * dev_pm_opp_find_freq_ceil() - Search for an rounded ceil freq
* @dev: device for which we do this operation
* @freq: Start frequency
*
* under the locked area. The pointer returned must be used prior to unlocking
* with rcu_read_unlock() to maintain the integrity of the pointer.
*/
-struct opp *opp_find_freq_ceil(struct device *dev, unsigned long *freq)
+struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev,
+ unsigned long *freq)
{
struct device_opp *dev_opp;
- struct opp *temp_opp, *opp = ERR_PTR(-ERANGE);
+ struct dev_pm_opp *temp_opp, *opp = ERR_PTR(-ERANGE);
if (!dev || !freq) {
dev_err(dev, "%s: Invalid argument freq=%p\n", __func__, freq);
return opp;
}
-EXPORT_SYMBOL_GPL(opp_find_freq_ceil);
+EXPORT_SYMBOL_GPL(dev_pm_opp_find_freq_ceil);
/**
- * opp_find_freq_floor() - Search for a rounded floor freq
+ * dev_pm_opp_find_freq_floor() - Search for a rounded floor freq
* @dev: device for which we do this operation
* @freq: Start frequency
*
* under the locked area. The pointer returned must be used prior to unlocking
* with rcu_read_unlock() to maintain the integrity of the pointer.
*/
-struct opp *opp_find_freq_floor(struct device *dev, unsigned long *freq)
+struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev,
+ unsigned long *freq)
{
struct device_opp *dev_opp;
- struct opp *temp_opp, *opp = ERR_PTR(-ERANGE);
+ struct dev_pm_opp *temp_opp, *opp = ERR_PTR(-ERANGE);
if (!dev || !freq) {
dev_err(dev, "%s: Invalid argument freq=%p\n", __func__, freq);
return opp;
}
-EXPORT_SYMBOL_GPL(opp_find_freq_floor);
+EXPORT_SYMBOL_GPL(dev_pm_opp_find_freq_floor);
/**
- * opp_add() - Add an OPP table from a table definitions
+ * dev_pm_opp_add() - Add an OPP table from a table definitions
* @dev: device for which we do this operation
* @freq: Frequency in Hz for this OPP
* @u_volt: Voltage in uVolts for this OPP
*
* This function adds an opp definition to the opp list and returns status.
* The opp is made available by default and it can be controlled using
- * opp_enable/disable functions.
+ * dev_pm_opp_enable/disable functions.
*
* Locking: The internal device_opp and opp structures are RCU protected.
* Hence this function internally uses RCU updater strategy with mutex locks
* that this function is *NOT* called under RCU protection or in contexts where
* mutex cannot be locked.
*/
-int opp_add(struct device *dev, unsigned long freq, unsigned long u_volt)
+int dev_pm_opp_add(struct device *dev, unsigned long freq, unsigned long u_volt)
{
struct device_opp *dev_opp = NULL;
- struct opp *opp, *new_opp;
+ struct dev_pm_opp *opp, *new_opp;
struct list_head *head;
/* allocate new OPP node */
- new_opp = kzalloc(sizeof(struct opp), GFP_KERNEL);
+ new_opp = kzalloc(sizeof(*new_opp), GFP_KERNEL);
if (!new_opp) {
dev_warn(dev, "%s: Unable to create new OPP node\n", __func__);
return -ENOMEM;
srcu_notifier_call_chain(&dev_opp->head, OPP_EVENT_ADD, new_opp);
return 0;
}
-EXPORT_SYMBOL_GPL(opp_add);
+EXPORT_SYMBOL_GPL(dev_pm_opp_add);
/**
* opp_set_availability() - helper to set the availability of an opp
bool availability_req)
{
struct device_opp *tmp_dev_opp, *dev_opp = ERR_PTR(-ENODEV);
- struct opp *new_opp, *tmp_opp, *opp = ERR_PTR(-ENODEV);
+ struct dev_pm_opp *new_opp, *tmp_opp, *opp = ERR_PTR(-ENODEV);
int r = 0;
/* keep the node allocated */
- new_opp = kmalloc(sizeof(struct opp), GFP_KERNEL);
+ new_opp = kmalloc(sizeof(*new_opp), GFP_KERNEL);
if (!new_opp) {
dev_warn(dev, "%s: Unable to create OPP\n", __func__);
return -ENOMEM;
}
/**
- * opp_enable() - Enable a specific OPP
+ * dev_pm_opp_enable() - Enable a specific OPP
* @dev: device for which we do this operation
* @freq: OPP frequency to enable
*
* Enables a provided opp. If the operation is valid, this returns 0, else the
* corresponding error value. It is meant to be used for users an OPP available
- * after being temporarily made unavailable with opp_disable.
+ * after being temporarily made unavailable with dev_pm_opp_disable.
*
* Locking: The internal device_opp and opp structures are RCU protected.
* Hence this function indirectly uses RCU and mutex locks to keep the
* this function is *NOT* called under RCU protection or in contexts where
* mutex locking or synchronize_rcu() blocking calls cannot be used.
*/
-int opp_enable(struct device *dev, unsigned long freq)
+int dev_pm_opp_enable(struct device *dev, unsigned long freq)
{
return opp_set_availability(dev, freq, true);
}
-EXPORT_SYMBOL_GPL(opp_enable);
+EXPORT_SYMBOL_GPL(dev_pm_opp_enable);
/**
- * opp_disable() - Disable a specific OPP
+ * dev_pm_opp_disable() - Disable a specific OPP
* @dev: device for which we do this operation
* @freq: OPP frequency to disable
*
* Disables a provided opp. If the operation is valid, this returns
* 0, else the corresponding error value. It is meant to be a temporary
* control by users to make this OPP not available until the circumstances are
- * right to make it available again (with a call to opp_enable).
+ * right to make it available again (with a call to dev_pm_opp_enable).
*
* Locking: The internal device_opp and opp structures are RCU protected.
* Hence this function indirectly uses RCU and mutex locks to keep the
* this function is *NOT* called under RCU protection or in contexts where
* mutex locking or synchronize_rcu() blocking calls cannot be used.
*/
-int opp_disable(struct device *dev, unsigned long freq)
+int dev_pm_opp_disable(struct device *dev, unsigned long freq)
{
return opp_set_availability(dev, freq, false);
}
-EXPORT_SYMBOL_GPL(opp_disable);
+EXPORT_SYMBOL_GPL(dev_pm_opp_disable);
#ifdef CONFIG_CPU_FREQ
/**
- * opp_init_cpufreq_table() - create a cpufreq table for a device
+ * dev_pm_opp_init_cpufreq_table() - create a cpufreq table for a device
* @dev: device for which we do this operation
* @table: Cpufreq table returned back to caller
*
* Callers should ensure that this function is *NOT* called under RCU protection
* or in contexts where mutex locking cannot be used.
*/
-int opp_init_cpufreq_table(struct device *dev,
+int dev_pm_opp_init_cpufreq_table(struct device *dev,
struct cpufreq_frequency_table **table)
{
struct device_opp *dev_opp;
- struct opp *opp;
+ struct dev_pm_opp *opp;
struct cpufreq_frequency_table *freq_table;
int i = 0;
}
freq_table = kzalloc(sizeof(struct cpufreq_frequency_table) *
- (opp_get_opp_count(dev) + 1), GFP_KERNEL);
+ (dev_pm_opp_get_opp_count(dev) + 1), GFP_KERNEL);
if (!freq_table) {
mutex_unlock(&dev_opp_list_lock);
dev_warn(dev, "%s: Unable to allocate frequency table\n",
return 0;
}
-EXPORT_SYMBOL_GPL(opp_init_cpufreq_table);
+EXPORT_SYMBOL_GPL(dev_pm_opp_init_cpufreq_table);
/**
- * opp_free_cpufreq_table() - free the cpufreq table
+ * dev_pm_opp_free_cpufreq_table() - free the cpufreq table
* @dev: device for which we do this operation
* @table: table to free
*
- * Free up the table allocated by opp_init_cpufreq_table
+ * Free up the table allocated by dev_pm_opp_init_cpufreq_table
*/
-void opp_free_cpufreq_table(struct device *dev,
+void dev_pm_opp_free_cpufreq_table(struct device *dev,
struct cpufreq_frequency_table **table)
{
if (!table)
kfree(*table);
*table = NULL;
}
-EXPORT_SYMBOL_GPL(opp_free_cpufreq_table);
+EXPORT_SYMBOL_GPL(dev_pm_opp_free_cpufreq_table);
#endif /* CONFIG_CPU_FREQ */
/**
- * opp_get_notifier() - find notifier_head of the device with opp
+ * dev_pm_opp_get_notifier() - find notifier_head of the device with opp
* @dev: device pointer used to lookup device OPPs.
*/
-struct srcu_notifier_head *opp_get_notifier(struct device *dev)
+struct srcu_notifier_head *dev_pm_opp_get_notifier(struct device *dev)
{
struct device_opp *dev_opp = find_device_opp(dev);
unsigned long freq = be32_to_cpup(val++) * 1000;
unsigned long volt = be32_to_cpup(val++);
- if (opp_add(dev, freq, volt)) {
+ if (dev_pm_opp_add(dev, freq, volt)) {
dev_warn(dev, "%s: Failed to add OPP %ld\n",
__func__, freq);
continue;
* Check if the device's runtime PM status allows it to be suspended. If
* another idle notification has been started earlier, return immediately. If
* the RPM_ASYNC flag is set then queue an idle-notification request; otherwise
- * run the ->runtime_idle() callback directly.
+ * run the ->runtime_idle() callback directly. If the ->runtime_idle callback
+ * doesn't exist or if it returns 0, call rpm_suspend with the RPM_AUTO flag.
*
* This function must be called under dev->power.lock with interrupts disabled.
*/
out:
trace_rpm_return_int(dev, _THIS_IP_, retval);
- return retval ? retval : rpm_suspend(dev, rpmflags);
+ return retval ? retval : rpm_suspend(dev, rpmflags | RPM_AUTO);
}
/**
}
}
-static void bcma_core_pci_power_save(struct bcma_drv_pci *pc, bool up)
-{
- u16 data;
-
- if (pc->core->id.rev >= 15 && pc->core->id.rev <= 20) {
- data = up ? 0x74 : 0x7C;
- bcma_pcie_mdio_writeread(pc, BCMA_CORE_PCI_MDIO_BLK1,
- BCMA_CORE_PCI_MDIO_BLK1_MGMT1, 0x7F64);
- bcma_pcie_mdio_writeread(pc, BCMA_CORE_PCI_MDIO_BLK1,
- BCMA_CORE_PCI_MDIO_BLK1_MGMT3, data);
- } else if (pc->core->id.rev >= 21 && pc->core->id.rev <= 22) {
- data = up ? 0x75 : 0x7D;
- bcma_pcie_mdio_writeread(pc, BCMA_CORE_PCI_MDIO_BLK1,
- BCMA_CORE_PCI_MDIO_BLK1_MGMT1, 0x7E65);
- bcma_pcie_mdio_writeread(pc, BCMA_CORE_PCI_MDIO_BLK1,
- BCMA_CORE_PCI_MDIO_BLK1_MGMT3, data);
- }
-}
-
/**************************************************
* Init.
**************************************************/
bcma_core_pci_clientmode_init(pc);
}
+void bcma_core_pci_power_save(struct bcma_bus *bus, bool up)
+{
+ struct bcma_drv_pci *pc;
+ u16 data;
+
+ if (bus->hosttype != BCMA_HOSTTYPE_PCI)
+ return;
+
+ pc = &bus->drv_pci[0];
+
+ if (pc->core->id.rev >= 15 && pc->core->id.rev <= 20) {
+ data = up ? 0x74 : 0x7C;
+ bcma_pcie_mdio_writeread(pc, BCMA_CORE_PCI_MDIO_BLK1,
+ BCMA_CORE_PCI_MDIO_BLK1_MGMT1, 0x7F64);
+ bcma_pcie_mdio_writeread(pc, BCMA_CORE_PCI_MDIO_BLK1,
+ BCMA_CORE_PCI_MDIO_BLK1_MGMT3, data);
+ } else if (pc->core->id.rev >= 21 && pc->core->id.rev <= 22) {
+ data = up ? 0x75 : 0x7D;
+ bcma_pcie_mdio_writeread(pc, BCMA_CORE_PCI_MDIO_BLK1,
+ BCMA_CORE_PCI_MDIO_BLK1_MGMT1, 0x7E65);
+ bcma_pcie_mdio_writeread(pc, BCMA_CORE_PCI_MDIO_BLK1,
+ BCMA_CORE_PCI_MDIO_BLK1_MGMT3, data);
+ }
+}
+EXPORT_SYMBOL_GPL(bcma_core_pci_power_save);
+
int bcma_core_pci_irq_ctl(struct bcma_drv_pci *pc, struct bcma_device *core,
bool enable)
{
pc = &bus->drv_pci[0];
- bcma_core_pci_power_save(pc, true);
-
bcma_core_pci_extend_L1timer(pc, true);
}
EXPORT_SYMBOL_GPL(bcma_core_pci_up);
pc = &bus->drv_pci[0];
bcma_core_pci_extend_L1timer(pc, false);
-
- bcma_core_pci_power_save(pc, false);
}
EXPORT_SYMBOL_GPL(bcma_core_pci_down);
int err;
u32 cp;
+ memset(&arg64, 0, sizeof(arg64));
err = 0;
err |=
copy_from_user(&arg64.LUN_info, &arg32->LUN_info,
ida_pci_info_struct pciinfo;
if (!arg) return -EINVAL;
+ memset(&pciinfo, 0, sizeof(pciinfo));
pciinfo.bus = host->pci_dev->bus->number;
pciinfo.dev_fn = host->pci_dev->devfn;
pciinfo.board_id = host->board_id;
{ USB_DEVICE(0x04CA, 0x3008) },
{ USB_DEVICE(0x13d3, 0x3362) },
{ USB_DEVICE(0x0CF3, 0xE004) },
+ { USB_DEVICE(0x0CF3, 0xE005) },
{ USB_DEVICE(0x0930, 0x0219) },
{ USB_DEVICE(0x0489, 0xe057) },
{ USB_DEVICE(0x13d3, 0x3393) },
{ USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
/* Broadcom BCM20702A0 */
{ USB_DEVICE(0x0b05, 0x17b5) },
+ { USB_DEVICE(0x0b05, 0x17cb) },
{ USB_DEVICE(0x04ca, 0x2003) },
{ USB_DEVICE(0x0489, 0xe042) },
{ USB_DEVICE(0x413c, 0x8197) },
/*Broadcom devices with vendor specific id */
{ USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
+ /* Belkin F8065bf - Broadcom based */
+ { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01) },
+
{ } /* Terminating entry */
};
{ USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
phys_addr_t sdramwins_phys_base,
size_t sdramwins_size)
{
+ struct device_node *np;
int win;
mbus->mbuswins_base = ioremap(mbuswins_phys_base, mbuswins_size);
return -ENOMEM;
}
- if (of_find_compatible_node(NULL, NULL, "marvell,coherency-fabric"))
+ np = of_find_compatible_node(NULL, NULL, "marvell,coherency-fabric");
+ if (np) {
mbus->hw_io_coherency = 1;
+ of_node_put(np);
+ }
for (win = 0; win < mbus->soc->num_wins; win++)
mvebu_mbus_disable_window(mbus, win);
int ret;
/*
- * These are optional, so we clear them and they'll
- * be zero if they are missing from the DT.
+ * These are optional, so we make sure that resource_size(x) will
+ * return 0.
*/
memset(mem, 0, sizeof(struct resource));
+ mem->end = -1;
memset(io, 0, sizeof(struct resource));
+ io->end = -1;
ret = of_property_read_u32_array(np, "pcie-mem-aperture", reg, ARRAY_SIZE(reg));
if (!ret) {
*/
void add_device_randomness(const void *buf, unsigned int size)
{
- unsigned long time = get_cycles() ^ jiffies;
+ unsigned long time = random_get_entropy() ^ jiffies;
mix_pool_bytes(&input_pool, buf, size, NULL);
mix_pool_bytes(&input_pool, &time, sizeof(time), NULL);
goto out;
sample.jiffies = jiffies;
- sample.cycles = get_cycles();
+ sample.cycles = random_get_entropy();
sample.num = num;
mix_pool_bytes(&input_pool, &sample, sizeof(sample), NULL);
struct fast_pool *fast_pool = &__get_cpu_var(irq_randomness);
struct pt_regs *regs = get_irq_regs();
unsigned long now = jiffies;
- __u32 input[4], cycles = get_cycles();
+ __u32 input[4], cycles = random_get_entropy();
input[0] = cycles ^ jiffies;
input[1] = irq;
static u32 random_int_secret[MD5_MESSAGE_BYTES / 4] ____cacheline_aligned;
-static int __init random_int_secret_init(void)
+int random_int_secret_init(void)
{
get_random_bytes(random_int_secret, sizeof(random_int_secret));
return 0;
}
-late_initcall(random_int_secret_init);
/*
* Get a random word for internal kernel use only. Similar to urandom but
hash = get_cpu_var(get_random_int_hash);
- hash[0] += current->pid + jiffies + get_cycles();
+ hash[0] += current->pid + jiffies + random_get_entropy();
md5_transform(hash, random_int_secret);
ret = hash[0];
put_cpu_var(get_random_int_hash);
#include <linux/errno.h>
#include <linux/err.h>
#include <linux/interrupt.h>
+#include <xen/xen.h>
#include <xen/events.h>
#include <xen/interface/io/tpmif.h>
#include <xen/grant_table.h>
return length;
}
-ssize_t tpm_show_locality(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- struct tpm_chip *chip = dev_get_drvdata(dev);
- struct tpm_private *priv = TPM_VPRIV(chip);
- u8 locality = priv->shr->locality;
-
- return sprintf(buf, "%d\n", locality);
-}
-
-ssize_t tpm_store_locality(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t len)
-{
- struct tpm_chip *chip = dev_get_drvdata(dev);
- struct tpm_private *priv = TPM_VPRIV(chip);
- u8 val;
-
- int rv = kstrtou8(buf, 0, &val);
- if (rv)
- return rv;
-
- priv->shr->locality = val;
-
- return len;
-}
-
static const struct file_operations vtpm_ops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
static DEVICE_ATTR(cancel, S_IWUSR | S_IWGRP, NULL, tpm_store_cancel);
static DEVICE_ATTR(durations, S_IRUGO, tpm_show_durations, NULL);
static DEVICE_ATTR(timeouts, S_IRUGO, tpm_show_timeouts, NULL);
-static DEVICE_ATTR(locality, S_IRUGO | S_IWUSR, tpm_show_locality,
- tpm_store_locality);
static struct attribute *vtpm_attrs[] = {
&dev_attr_pubek.attr,
&dev_attr_cancel.attr,
&dev_attr_durations.attr,
&dev_attr_timeouts.attr,
- &dev_attr_locality.attr,
NULL,
};
.attrs = vtpm_attrs,
};
-#define TPM_LONG_TIMEOUT (10 * 60 * HZ)
-
static const struct tpm_vendor_specific tpm_vtpm = {
.status = vtpm_status,
.recv = vtpm_recv,
.miscdev = {
.fops = &vtpm_ops,
},
- .duration = {
- TPM_LONG_TIMEOUT,
- TPM_LONG_TIMEOUT,
- TPM_LONG_TIMEOUT,
- },
};
static irqreturn_t tpmif_interrupt(int dummy, void *dev_id)
config ARMADA_370_XP_TIMER
bool
+ select CLKSRC_OF
config ORION_TIMER
select CLKSRC_OF
clocksource_of_init_fn init_func;
for_each_matching_node_and_match(np, __clksrc_of_table, &match) {
+ if (!of_device_is_available(np))
+ continue;
+
init_func = match->data;
init_func(np);
}
ced->name = dev_name(&p->pdev->dev);
ced->features = CLOCK_EVT_FEAT_ONESHOT;
ced->rating = 200;
- ced->cpumask = cpumask_of(0);
+ ced->cpumask = cpu_possible_mask;
ced->set_next_event = em_sti_clock_event_next;
ced->set_mode = em_sti_clock_event_mode;
evt->irq);
return -EIO;
}
- irq_set_affinity(evt->irq, cpumask_of(cpu));
} else {
enable_percpu_irq(mct_irqs[MCT_L0_IRQ], 0);
}
unsigned long action, void *hcpu)
{
struct mct_clock_event_device *mevt;
+ unsigned int cpu;
/*
* Grab cpu pointer in each case to avoid spurious
mevt = this_cpu_ptr(&percpu_mct_tick);
exynos4_local_timer_setup(&mevt->evt);
break;
+ case CPU_ONLINE:
+ cpu = (unsigned long)hcpu;
+ if (mct_int_type == MCT_INT_SPI)
+ irq_set_affinity(mct_irqs[MCT_L0_IRQ + cpu],
+ cpumask_of(cpu));
+ break;
case CPU_DYING:
mevt = this_cpu_ptr(&percpu_mct_tick);
exynos4_local_timer_stop(&mevt->evt);
&percpu_mct_tick);
WARN(err, "MCT: can't request IRQ %d (%d)\n",
mct_irqs[MCT_L0_IRQ], err);
+ } else {
+ irq_set_affinity(mct_irqs[MCT_L0_IRQ], cpumask_of(0));
}
err = register_cpu_notifier(&exynos4_mct_cpu_nb);
msg = (struct cn_msg *)buffer;
ev = (struct proc_event *)msg->data;
+ memset(&ev->event_data, 0, sizeof(ev->event_data));
get_seq(&msg->seq, &ev->cpu);
ktime_get_ts(&ts); /* get high res monotonic timestamp */
put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id));
msg->ack = 0; /* not used */
msg->len = sizeof(*ev);
+ msg->flags = 0; /* not used */
/* If cn_netlink_send() failed, the data is not sent */
cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
}
msg = (struct cn_msg *)buffer;
ev = (struct proc_event *)msg->data;
+ memset(&ev->event_data, 0, sizeof(ev->event_data));
get_seq(&msg->seq, &ev->cpu);
ktime_get_ts(&ts); /* get high res monotonic timestamp */
put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id));
msg->ack = 0; /* not used */
msg->len = sizeof(*ev);
+ msg->flags = 0; /* not used */
cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
}
msg = (struct cn_msg *)buffer;
ev = (struct proc_event *)msg->data;
+ memset(&ev->event_data, 0, sizeof(ev->event_data));
ev->what = which_id;
ev->event_data.id.process_pid = task->pid;
ev->event_data.id.process_tgid = task->tgid;
memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id));
msg->ack = 0; /* not used */
msg->len = sizeof(*ev);
+ msg->flags = 0; /* not used */
cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
}
msg = (struct cn_msg *)buffer;
ev = (struct proc_event *)msg->data;
+ memset(&ev->event_data, 0, sizeof(ev->event_data));
get_seq(&msg->seq, &ev->cpu);
ktime_get_ts(&ts); /* get high res monotonic timestamp */
put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id));
msg->ack = 0; /* not used */
msg->len = sizeof(*ev);
+ msg->flags = 0; /* not used */
cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
}
msg = (struct cn_msg *)buffer;
ev = (struct proc_event *)msg->data;
+ memset(&ev->event_data, 0, sizeof(ev->event_data));
get_seq(&msg->seq, &ev->cpu);
ktime_get_ts(&ts); /* get high res monotonic timestamp */
put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id));
msg->ack = 0; /* not used */
msg->len = sizeof(*ev);
+ msg->flags = 0; /* not used */
cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
}
msg = (struct cn_msg *)buffer;
ev = (struct proc_event *)msg->data;
+ memset(&ev->event_data, 0, sizeof(ev->event_data));
get_seq(&msg->seq, &ev->cpu);
ktime_get_ts(&ts); /* get high res monotonic timestamp */
put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id));
msg->ack = 0; /* not used */
msg->len = sizeof(*ev);
+ msg->flags = 0; /* not used */
cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
}
msg = (struct cn_msg *)buffer;
ev = (struct proc_event *)msg->data;
+ memset(&ev->event_data, 0, sizeof(ev->event_data));
get_seq(&msg->seq, &ev->cpu);
ktime_get_ts(&ts); /* get high res monotonic timestamp */
put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id));
msg->ack = 0; /* not used */
msg->len = sizeof(*ev);
+ msg->flags = 0; /* not used */
cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
}
msg = (struct cn_msg *)buffer;
ev = (struct proc_event *)msg->data;
+ memset(&ev->event_data, 0, sizeof(ev->event_data));
get_seq(&msg->seq, &ev->cpu);
ktime_get_ts(&ts); /* get high res monotonic timestamp */
put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id));
msg->ack = 0; /* not used */
msg->len = sizeof(*ev);
+ msg->flags = 0; /* not used */
cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
}
msg = (struct cn_msg *)buffer;
ev = (struct proc_event *)msg->data;
+ memset(&ev->event_data, 0, sizeof(ev->event_data));
msg->seq = rcvd_seq;
ktime_get_ts(&ts); /* get high res monotonic timestamp */
put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id));
msg->ack = rcvd_ack + 1;
msg->len = sizeof(*ev);
+ msg->flags = 0; /* not used */
cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
}
data = nlmsg_data(nlh);
- memcpy(data, msg, sizeof(*data) + msg->len);
+ memcpy(data, msg, size);
NETLINK_CB(skb).dst_group = group;
static void cn_rx_skb(struct sk_buff *__skb)
{
struct nlmsghdr *nlh;
- int err;
struct sk_buff *skb;
+ int len, err;
skb = skb_get(__skb);
if (skb->len >= NLMSG_HDRLEN) {
nlh = nlmsg_hdr(skb);
+ len = nlmsg_len(nlh);
- if (nlh->nlmsg_len < sizeof(struct cn_msg) ||
+ if (len < (int)sizeof(struct cn_msg) ||
skb->len < nlh->nlmsg_len ||
- nlh->nlmsg_len > CONNECTOR_MAX_MSG_SIZE) {
+ len > CONNECTOR_MAX_MSG_SIZE) {
kfree_skb(skb);
return;
}
if CPU_FREQ
-config CPU_FREQ_TABLE
- tristate
-
config CPU_FREQ_GOV_COMMON
bool
config CPU_FREQ_STAT
tristate "CPU frequency translation statistics"
- select CPU_FREQ_TABLE
default y
help
This driver exports CPU frequency statistics information through sysfs
config CPU_FREQ_GOV_ONDEMAND
tristate "'ondemand' cpufreq policy governor"
- select CPU_FREQ_TABLE
select CPU_FREQ_GOV_COMMON
help
'ondemand' - This driver adds a dynamic cpufreq policy governor.
config GENERIC_CPUFREQ_CPU0
tristate "Generic CPU0 cpufreq driver"
depends on HAVE_CLK && REGULATOR && PM_OPP && OF
- select CPU_FREQ_TABLE
help
This adds a generic cpufreq driver for CPU0 frequency management.
It supports both uniprocessor (UP) and symmetric multiprocessor (SMP)
config IA64_ACPI_CPUFREQ
tristate "ACPI Processor P-States driver"
- select CPU_FREQ_TABLE
depends on ACPI_PROCESSOR
help
This driver adds a CPUFreq driver which utilizes the ACPI
config LOONGSON2_CPUFREQ
tristate "Loongson2 CPUFreq Driver"
- select CPU_FREQ_TABLE
help
This option adds a CPUFreq driver for loongson processors which
support software configurable cpu frequency.
depends on SPARC64
config SPARC_US3_CPUFREQ
tristate "UltraSPARC-III CPU Frequency driver"
- select CPU_FREQ_TABLE
help
This adds the CPUFreq driver for UltraSPARC-III processors.
config SPARC_US2E_CPUFREQ
tristate "UltraSPARC-IIe CPU Frequency driver"
- select CPU_FREQ_TABLE
help
This adds the CPUFreq driver for UltraSPARC-IIe processors.
depends on SUPERH
config SH_CPU_FREQ
tristate "SuperH CPU Frequency driver"
- select CPU_FREQ_TABLE
help
This adds the cpufreq driver for SuperH. Any CPU that supports
clock rate rounding through the clock framework can use this
config ARM_BIG_LITTLE_CPUFREQ
tristate "Generic ARM big LITTLE CPUfreq driver"
depends on ARM_CPU_TOPOLOGY && PM_OPP && HAVE_CLK
- select CPU_FREQ_TABLE
help
This enables the Generic CPUfreq driver for ARM big.LITTLE platforms.
config ARM_EXYNOS_CPUFREQ
bool
- select CPU_FREQ_TABLE
config ARM_EXYNOS4210_CPUFREQ
bool "SAMSUNG EXYNOS4210"
depends on SOC_EXYNOS5440
depends on HAVE_CLK && PM_OPP && OF
default y
- select CPU_FREQ_TABLE
help
This adds the CPUFreq driver for Samsung EXYNOS5440
SoC. The nature of exynos5440 clock controller is
tristate "Freescale i.MX6Q cpufreq support"
depends on SOC_IMX6Q
depends on REGULATOR_ANATOP
- select CPU_FREQ_TABLE
help
This adds cpufreq driver support for Freescale i.MX6Q SOC.
config ARM_KIRKWOOD_CPUFREQ
def_bool ARCH_KIRKWOOD && OF
- select CPU_FREQ_TABLE
help
This adds the CPUFreq driver for Marvell Kirkwood
SoCs.
bool "TI OMAP2+"
depends on ARCH_OMAP2PLUS
default ARCH_OMAP2PLUS
- select CPU_FREQ_TABLE
config ARM_S3C_CPUFREQ
bool
config ARM_S3C2416_CPUFREQ
bool "S3C2416 CPU Frequency scaling support"
depends on CPU_S3C2416
- select CPU_FREQ_TABLE
help
This adds the CPUFreq driver for the Samsung S3C2416 and
S3C2450 SoC. The S3C2416 supports changing the rate of the
config ARM_S3C64XX_CPUFREQ
bool "Samsung S3C64XX"
depends on CPU_S3C6410
- select CPU_FREQ_TABLE
default y
help
This adds the CPUFreq driver for Samsung S3C6410 SoC.
config ARM_S5PV210_CPUFREQ
bool "Samsung S5PV210 and S5PC110"
depends on CPU_S5PV210
- select CPU_FREQ_TABLE
default y
help
This adds the CPUFreq driver for Samsung S5PV210 and
config ARM_SPEAR_CPUFREQ
bool "SPEAr CPUFreq support"
depends on PLAT_SPEAR
- select CPU_FREQ_TABLE
default y
help
This adds the CPUFreq driver support for SPEAr SOCs.
config ARM_TEGRA_CPUFREQ
bool "TEGRA CPUFreq support"
depends on ARCH_TEGRA
- select CPU_FREQ_TABLE
default y
help
This adds the CPUFreq driver support for TEGRA SOCs.
config CPU_FREQ_CBE
tristate "CBE frequency scaling"
depends on CBE_RAS && PPC_CELL
- select CPU_FREQ_TABLE
default m
help
This adds the cpufreq driver for Cell BE processors.
config CPU_FREQ_MAPLE
bool "Support for Maple 970FX Evaluation Board"
depends on PPC_MAPLE
- select CPU_FREQ_TABLE
help
This adds support for frequency switching on Maple 970FX
Evaluation Board and compatible boards (IBM JS2x blades).
config PPC_CORENET_CPUFREQ
tristate "CPU frequency scaling driver for Freescale E500MC SoCs"
depends on PPC_E500MC && OF && COMMON_CLK
- select CPU_FREQ_TABLE
select CLK_PPC_CORENET
help
This adds the CPUFreq driver support for Freescale e500mc,
config CPU_FREQ_PMAC
bool "Support for Apple PowerBooks"
depends on ADB_PMU && PPC32
- select CPU_FREQ_TABLE
help
This adds support for frequency switching on Apple PowerBooks,
this currently includes some models of iBook & Titanium
config CPU_FREQ_PMAC64
bool "Support for some Apple G5s"
depends on PPC_PMAC && PPC64
- select CPU_FREQ_TABLE
help
This adds support for frequency switching on Apple iMac G5,
and some of the more recent desktop G5 machines as well.
config PPC_PASEMI_CPUFREQ
bool "Support for PA Semi PWRficient"
depends on PPC_PASEMI
- select CPU_FREQ_TABLE
default y
help
This adds the support for frequency switching on PA Semi
config X86_ACPI_CPUFREQ
tristate "ACPI Processor P-States driver"
- select CPU_FREQ_TABLE
depends on ACPI_PROCESSOR
help
This driver adds a CPUFreq driver which utilizes the ACPI
config ELAN_CPUFREQ
tristate "AMD Elan SC400 and SC410"
- select CPU_FREQ_TABLE
depends on MELAN
---help---
This adds the CPUFreq driver for AMD Elan SC400 and SC410
config SC520_CPUFREQ
tristate "AMD Elan SC520"
- select CPU_FREQ_TABLE
depends on MELAN
---help---
This adds the CPUFreq driver for AMD Elan SC520 processor.
config X86_POWERNOW_K6
tristate "AMD Mobile K6-2/K6-3 PowerNow!"
- select CPU_FREQ_TABLE
depends on X86_32
help
This adds the CPUFreq driver for mobile AMD K6-2+ and mobile
config X86_POWERNOW_K7
tristate "AMD Mobile Athlon/Duron PowerNow!"
- select CPU_FREQ_TABLE
depends on X86_32
help
This adds the CPUFreq driver for mobile AMD K7 mobile processors.
config X86_POWERNOW_K8
tristate "AMD Opteron/Athlon64 PowerNow!"
- select CPU_FREQ_TABLE
depends on ACPI && ACPI_PROCESSOR && X86_ACPI_CPUFREQ
help
This adds the CPUFreq driver for K8/early Opteron/Athlon64 processors.
config X86_AMD_FREQ_SENSITIVITY
tristate "AMD frequency sensitivity feedback powersave bias"
depends on CPU_FREQ_GOV_ONDEMAND && X86_ACPI_CPUFREQ && CPU_SUP_AMD
- select CPU_FREQ_TABLE
help
This adds AMD-specific powersave bias function to the ondemand
governor, which allows it to make more power-conscious frequency
config X86_SPEEDSTEP_CENTRINO
tristate "Intel Enhanced SpeedStep (deprecated)"
- select CPU_FREQ_TABLE
select X86_SPEEDSTEP_CENTRINO_TABLE if X86_32
depends on X86_32 || (X86_64 && ACPI_PROCESSOR)
help
config X86_SPEEDSTEP_ICH
tristate "Intel Speedstep on ICH-M chipsets (ioport interface)"
- select CPU_FREQ_TABLE
depends on X86_32
help
This adds the CPUFreq driver for certain mobile Intel Pentium III
config X86_SPEEDSTEP_SMI
tristate "Intel SpeedStep on 440BX/ZX/MX chipsets (SMI interface)"
- select CPU_FREQ_TABLE
depends on X86_32
help
This adds the CPUFreq driver for certain mobile Intel Pentium III
config X86_P4_CLOCKMOD
tristate "Intel Pentium 4 clock modulation"
- select CPU_FREQ_TABLE
help
This adds the CPUFreq driver for Intel Pentium 4 / XEON
processors. When enabled it will lower CPU temperature by skipping
config X86_LONGHAUL
tristate "VIA Cyrix III Longhaul"
- select CPU_FREQ_TABLE
depends on X86_32 && ACPI_PROCESSOR
help
This adds the CPUFreq driver for VIA Samuel/CyrixIII,
config X86_E_POWERSAVER
tristate "VIA C7 Enhanced PowerSaver (DANGEROUS)"
- select CPU_FREQ_TABLE
depends on X86_32 && ACPI_PROCESSOR
help
This adds the CPUFreq driver for VIA C7 processors. However, this driver
# CPUfreq core
-obj-$(CONFIG_CPU_FREQ) += cpufreq.o
+obj-$(CONFIG_CPU_FREQ) += cpufreq.o freq_table.o
# CPUfreq stats
obj-$(CONFIG_CPU_FREQ_STAT) += cpufreq_stats.o
obj-$(CONFIG_CPU_FREQ_GOV_CONSERVATIVE) += cpufreq_conservative.o
obj-$(CONFIG_CPU_FREQ_GOV_COMMON) += cpufreq_governor.o
-# CPUfreq cross-arch helpers
-obj-$(CONFIG_CPU_FREQ_TABLE) += freq_table.o
-
obj-$(CONFIG_GENERIC_CPUFREQ_CPU0) += cpufreq-cpu0.o
##################################################################################
}
static int acpi_cpufreq_target(struct cpufreq_policy *policy,
- unsigned int target_freq, unsigned int relation)
+ unsigned int index)
{
struct acpi_cpufreq_data *data = per_cpu(acfreq_data, policy->cpu);
struct acpi_processor_performance *perf;
struct cpufreq_freqs freqs;
struct drv_cmd cmd;
- unsigned int next_state = 0; /* Index into freq_table */
unsigned int next_perf_state = 0; /* Index into perf table */
int result = 0;
- pr_debug("acpi_cpufreq_target %d (%d)\n", target_freq, policy->cpu);
+ pr_debug("acpi_cpufreq_target %d (%d)\n",
+ data->freq_table[index].frequency, policy->cpu);
if (unlikely(data == NULL ||
data->acpi_data == NULL || data->freq_table == NULL)) {
}
perf = data->acpi_data;
- result = cpufreq_frequency_table_target(policy,
- data->freq_table,
- target_freq,
- relation, &next_state);
- if (unlikely(result)) {
- result = -ENODEV;
- goto out;
- }
-
- next_perf_state = data->freq_table[next_state].driver_data;
+ next_perf_state = data->freq_table[index].driver_data;
if (perf->state == next_perf_state) {
if (unlikely(data->resume)) {
pr_debug("Called after resume, resetting to P%d\n",
cmd.mask = cpumask_of(policy->cpu);
freqs.old = perf->states[perf->state].core_frequency * 1000;
- freqs.new = data->freq_table[next_state].frequency;
+ freqs.new = data->freq_table[index].frequency;
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
drv_write(&cmd);
return result;
}
-static int acpi_cpufreq_verify(struct cpufreq_policy *policy)
-{
- struct acpi_cpufreq_data *data = per_cpu(acfreq_data, policy->cpu);
-
- pr_debug("acpi_cpufreq_verify\n");
-
- return cpufreq_frequency_table_verify(policy, data->freq_table);
-}
-
static unsigned long
acpi_cpufreq_guess_freq(struct acpi_cpufreq_data *data, unsigned int cpu)
{
data->freq_table[valid_states].frequency = CPUFREQ_TABLE_END;
perf->state = 0;
- result = cpufreq_frequency_table_cpuinfo(policy, data->freq_table);
+ result = cpufreq_table_validate_and_show(policy, data->freq_table);
if (result)
goto err_freqfree;
switch (perf->control_register.space_id) {
case ACPI_ADR_SPACE_SYSTEM_IO:
- /* Current speed is unknown and not detectable by IO port */
+ /*
+ * The core will not set policy->cur, because
+ * cpufreq_driver->get is NULL, so we need to set it here.
+ * However, we have to guess it, because the current speed is
+ * unknown and not detectable via IO ports.
+ */
policy->cur = acpi_cpufreq_guess_freq(data, policy->cpu);
break;
case ACPI_ADR_SPACE_FIXED_HARDWARE:
acpi_cpufreq_driver.get = get_cur_freq_on_cpu;
- policy->cur = get_cur_freq_on_cpu(cpu);
break;
default:
break;
(u32) perf->states[i].power,
(u32) perf->states[i].transition_latency);
- cpufreq_frequency_table_get_attr(data->freq_table, policy->cpu);
-
/*
* the first call to ->target() should result in us actually
* writing something to the appropriate registers.
};
static struct cpufreq_driver acpi_cpufreq_driver = {
- .verify = acpi_cpufreq_verify,
- .target = acpi_cpufreq_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = acpi_cpufreq_target,
.bios_limit = acpi_processor_get_bios_limit,
.init = acpi_cpufreq_cpu_init,
.exit = acpi_cpufreq_cpu_exit,
int ret;
if (acpi_disabled)
- return 0;
+ return -ENODEV;
+
+ /* don't keep reloading if cpufreq_driver exists */
+ if (cpufreq_get_current_driver())
+ return -EEXIST;
pr_debug("acpi_cpufreq_init\n");
#include <linux/cpumask.h>
#include <linux/export.h>
#include <linux/of_platform.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
#include <linux/slab.h>
#include <linux/topology.h>
#include <linux/types.h>
return clk_get_rate(clk[cur_cluster]) / 1000;
}
-/* Validate policy frequency range */
-static int bL_cpufreq_verify_policy(struct cpufreq_policy *policy)
-{
- u32 cur_cluster = cpu_to_cluster(policy->cpu);
-
- return cpufreq_frequency_table_verify(policy, freq_table[cur_cluster]);
-}
-
/* Set clock frequency */
static int bL_cpufreq_set_target(struct cpufreq_policy *policy,
- unsigned int target_freq, unsigned int relation)
+ unsigned int index)
{
struct cpufreq_freqs freqs;
- u32 cpu = policy->cpu, freq_tab_idx, cur_cluster;
+ u32 cpu = policy->cpu, cur_cluster;
int ret = 0;
cur_cluster = cpu_to_cluster(policy->cpu);
freqs.old = bL_cpufreq_get(policy->cpu);
-
- /* Determine valid target frequency using freq_table */
- cpufreq_frequency_table_target(policy, freq_table[cur_cluster],
- target_freq, relation, &freq_tab_idx);
- freqs.new = freq_table[cur_cluster][freq_tab_idx].frequency;
+ freqs.new = freq_table[cur_cluster][index].frequency;
pr_debug("%s: cpu: %d, cluster: %d, oldfreq: %d, target freq: %d, new freq: %d\n",
- __func__, cpu, cur_cluster, freqs.old, target_freq,
+ __func__, cpu, cur_cluster, freqs.old, freqs.new,
freqs.new);
- if (freqs.old == freqs.new)
- return 0;
-
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
ret = clk_set_rate(clk[cur_cluster], freqs.new * 1000);
if (!atomic_dec_return(&cluster_usage[cluster])) {
clk_put(clk[cluster]);
- opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]);
+ dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]);
dev_dbg(cpu_dev, "%s: cluster: %d\n", __func__, cluster);
}
}
goto atomic_dec;
}
- ret = opp_init_cpufreq_table(cpu_dev, &freq_table[cluster]);
+ ret = dev_pm_opp_init_cpufreq_table(cpu_dev, &freq_table[cluster]);
if (ret) {
dev_err(cpu_dev, "%s: failed to init cpufreq table, cpu: %d, err: %d\n",
__func__, cpu_dev->id, ret);
}
name[12] = cluster + '0';
- clk[cluster] = clk_get_sys(name, NULL);
+ clk[cluster] = clk_get(cpu_dev, name);
if (!IS_ERR(clk[cluster])) {
dev_dbg(cpu_dev, "%s: clk: %p & freq table: %p, cluster: %d\n",
__func__, clk[cluster], freq_table[cluster],
dev_err(cpu_dev, "%s: Failed to get clk for cpu: %d, cluster: %d\n",
__func__, cpu_dev->id, cluster);
ret = PTR_ERR(clk[cluster]);
- opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]);
+ dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]);
atomic_dec:
atomic_dec(&cluster_usage[cluster]);
if (ret)
return ret;
- ret = cpufreq_frequency_table_cpuinfo(policy, freq_table[cur_cluster]);
+ ret = cpufreq_table_validate_and_show(policy, freq_table[cur_cluster]);
if (ret) {
dev_err(cpu_dev, "CPU %d, cluster: %d invalid freq table\n",
policy->cpu, cur_cluster);
return ret;
}
- cpufreq_frequency_table_get_attr(freq_table[cur_cluster], policy->cpu);
-
if (arm_bL_ops->get_transition_latency)
policy->cpuinfo.transition_latency =
arm_bL_ops->get_transition_latency(cpu_dev);
else
policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
- policy->cur = bL_cpufreq_get(policy->cpu);
-
cpumask_copy(policy->cpus, topology_core_cpumask(policy->cpu));
dev_info(cpu_dev, "%s: CPU %d initialized\n", __func__, policy->cpu);
return -ENODEV;
}
+ cpufreq_frequency_table_put_attr(policy->cpu);
put_cluster_clk_and_freq_table(cpu_dev);
dev_dbg(cpu_dev, "%s: Exited, cpu: %d\n", __func__, policy->cpu);
return 0;
}
-/* Export freq_table to sysfs */
-static struct freq_attr *bL_cpufreq_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
static struct cpufreq_driver bL_cpufreq_driver = {
.name = "arm-big-little",
- .flags = CPUFREQ_STICKY,
- .verify = bL_cpufreq_verify_policy,
- .target = bL_cpufreq_set_target,
+ .flags = CPUFREQ_STICKY |
+ CPUFREQ_HAVE_GOVERNOR_PER_POLICY,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = bL_cpufreq_set_target,
.get = bL_cpufreq_get,
.init = bL_cpufreq_init,
.exit = bL_cpufreq_exit,
- .have_governor_per_policy = true,
- .attr = bL_cpufreq_attr,
+ .attr = cpufreq_generic_attr,
};
int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops)
#include <linux/export.h>
#include <linux/module.h>
#include <linux/of_device.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/export.h>
+#include <linux/slab.h>
static struct clk *cpuclk;
-
-static int at32_verify_speed(struct cpufreq_policy *policy)
-{
- if (policy->cpu != 0)
- return -EINVAL;
-
- cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
- policy->cpuinfo.max_freq);
- return 0;
-}
+static struct cpufreq_frequency_table *freq_table;
static unsigned int at32_get_speed(unsigned int cpu)
{
static unsigned int ref_freq;
static unsigned long loops_per_jiffy_ref;
-static int at32_set_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
+static int at32_set_target(struct cpufreq_policy *policy, unsigned int index)
{
struct cpufreq_freqs freqs;
- long freq;
-
- /* Convert target_freq from kHz to Hz */
- freq = clk_round_rate(cpuclk, target_freq * 1000);
-
- /* Check if policy->min <= new_freq <= policy->max */
- if(freq < (policy->min * 1000) || freq > (policy->max * 1000))
- return -EINVAL;
-
- pr_debug("cpufreq: requested frequency %u Hz\n", target_freq * 1000);
freqs.old = at32_get_speed(0);
- freqs.new = (freq + 500) / 1000;
- freqs.flags = 0;
+ freqs.new = freq_table[index].frequency;
if (!ref_freq) {
ref_freq = freqs.old;
if (freqs.old < freqs.new)
boot_cpu_data.loops_per_jiffy = cpufreq_scale(
loops_per_jiffy_ref, ref_freq, freqs.new);
- clk_set_rate(cpuclk, freq);
+ clk_set_rate(cpuclk, freqs.new * 1000);
if (freqs.new < freqs.old)
boot_cpu_data.loops_per_jiffy = cpufreq_scale(
loops_per_jiffy_ref, ref_freq, freqs.new);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
- pr_debug("cpufreq: set frequency %lu Hz\n", freq);
+ pr_debug("cpufreq: set frequency %u Hz\n", freqs.new * 1000);
return 0;
}
static int __init at32_cpufreq_driver_init(struct cpufreq_policy *policy)
{
+ unsigned int frequency, rate, min_freq;
+ int retval, steps, i;
+
if (policy->cpu != 0)
return -EINVAL;
cpuclk = clk_get(NULL, "cpu");
if (IS_ERR(cpuclk)) {
pr_debug("cpufreq: could not get CPU clk\n");
- return PTR_ERR(cpuclk);
+ retval = PTR_ERR(cpuclk);
+ goto out_err;
}
- policy->cpuinfo.min_freq = (clk_round_rate(cpuclk, 1) + 500) / 1000;
- policy->cpuinfo.max_freq = (clk_round_rate(cpuclk, ~0UL) + 500) / 1000;
+ min_freq = (clk_round_rate(cpuclk, 1) + 500) / 1000;
+ frequency = (clk_round_rate(cpuclk, ~0UL) + 500) / 1000;
policy->cpuinfo.transition_latency = 0;
- policy->cur = at32_get_speed(0);
- policy->min = policy->cpuinfo.min_freq;
- policy->max = policy->cpuinfo.max_freq;
- printk("cpufreq: AT32AP CPU frequency driver\n");
+ /*
+ * AVR32 CPU frequency rate scales in power of two between maximum and
+ * minimum, also add space for the table end marker.
+ *
+ * Further validate that the frequency is usable, and append it to the
+ * frequency table.
+ */
+ steps = fls(frequency / min_freq) + 1;
+ freq_table = kzalloc(steps * sizeof(struct cpufreq_frequency_table),
+ GFP_KERNEL);
+ if (!freq_table) {
+ retval = -ENOMEM;
+ goto out_err_put_clk;
+ }
- return 0;
+ for (i = 0; i < (steps - 1); i++) {
+ rate = clk_round_rate(cpuclk, frequency * 1000) / 1000;
+
+ if (rate != frequency)
+ freq_table[i].frequency = CPUFREQ_ENTRY_INVALID;
+ else
+ freq_table[i].frequency = frequency;
+
+ frequency /= 2;
+ }
+
+ freq_table[steps - 1].frequency = CPUFREQ_TABLE_END;
+
+ retval = cpufreq_table_validate_and_show(policy, freq_table);
+ if (!retval) {
+ printk("cpufreq: AT32AP CPU frequency driver\n");
+ return 0;
+ }
+
+ kfree(freq_table);
+out_err_put_clk:
+ clk_put(cpuclk);
+out_err:
+ return retval;
}
static struct cpufreq_driver at32_driver = {
.name = "at32ap",
.init = at32_cpufreq_driver_init,
- .verify = at32_verify_speed,
- .target = at32_set_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = at32_set_target,
.get = at32_get_speed,
.flags = CPUFREQ_STICKY,
};
}
#endif
-static int bfin_target(struct cpufreq_policy *policy,
- unsigned int target_freq, unsigned int relation)
+static int bfin_target(struct cpufreq_policy *policy, unsigned int index)
{
#ifndef CONFIG_BF60x
unsigned int plldiv;
#endif
- unsigned int index;
- unsigned long cclk_hz;
struct cpufreq_freqs freqs;
static unsigned long lpj_ref;
static unsigned int lpj_ref_freq;
cycles_t cycles;
#endif
- if (cpufreq_frequency_table_target(policy, bfin_freq_table, target_freq,
- relation, &index))
- return -EINVAL;
-
- cclk_hz = bfin_freq_table[index].frequency;
-
freqs.old = bfin_getfreq_khz(0);
- freqs.new = cclk_hz;
+ freqs.new = bfin_freq_table[index].frequency;
pr_debug("cpufreq: changing cclk to %lu; target = %u, oldfreq = %u\n",
- cclk_hz, target_freq, freqs.old);
+ freqs.new, freqs.new, freqs.old);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
#ifndef CONFIG_BF60x
return ret;
}
-static int bfin_verify_speed(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, bfin_freq_table);
-}
-
static int __bfin_cpu_init(struct cpufreq_policy *policy)
{
policy->cpuinfo.transition_latency = 50000; /* 50us assumed */
- policy->cur = cclk;
- cpufreq_frequency_table_get_attr(bfin_freq_table, policy->cpu);
- return cpufreq_frequency_table_cpuinfo(policy, bfin_freq_table);
+ return cpufreq_table_validate_and_show(policy, bfin_freq_table);
}
-static struct freq_attr *bfin_freq_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
static struct cpufreq_driver bfin_driver = {
- .verify = bfin_verify_speed,
- .target = bfin_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = bfin_target,
.get = bfin_getfreq_khz,
.init = __bfin_cpu_init,
+ .exit = cpufreq_generic_exit,
.name = "bfin cpufreq",
- .attr = bfin_freq_attr,
+ .attr = cpufreq_generic_attr,
};
static int __init bfin_cpu_init(void)
#include <linux/err.h>
#include <linux/module.h>
#include <linux/of.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
#include <linux/platform_device.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>
static struct regulator *cpu_reg;
static struct cpufreq_frequency_table *freq_table;
-static int cpu0_verify_speed(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, freq_table);
-}
-
static unsigned int cpu0_get_speed(unsigned int cpu)
{
return clk_get_rate(cpu_clk) / 1000;
}
-static int cpu0_set_target(struct cpufreq_policy *policy,
- unsigned int target_freq, unsigned int relation)
+static int cpu0_set_target(struct cpufreq_policy *policy, unsigned int index)
{
struct cpufreq_freqs freqs;
- struct opp *opp;
+ struct dev_pm_opp *opp;
unsigned long volt = 0, volt_old = 0, tol = 0;
long freq_Hz, freq_exact;
- unsigned int index;
int ret;
- ret = cpufreq_frequency_table_target(policy, freq_table, target_freq,
- relation, &index);
- if (ret) {
- pr_err("failed to match target freqency %d: %d\n",
- target_freq, ret);
- return ret;
- }
-
freq_Hz = clk_round_rate(cpu_clk, freq_table[index].frequency * 1000);
if (freq_Hz < 0)
freq_Hz = freq_table[index].frequency * 1000;
freqs.new = freq_Hz / 1000;
freqs.old = clk_get_rate(cpu_clk) / 1000;
- if (freqs.old == freqs.new)
- return 0;
-
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
if (!IS_ERR(cpu_reg)) {
rcu_read_lock();
- opp = opp_find_freq_ceil(cpu_dev, &freq_Hz);
+ opp = dev_pm_opp_find_freq_ceil(cpu_dev, &freq_Hz);
if (IS_ERR(opp)) {
rcu_read_unlock();
pr_err("failed to find OPP for %ld\n", freq_Hz);
ret = PTR_ERR(opp);
goto post_notify;
}
- volt = opp_get_voltage(opp);
+ volt = dev_pm_opp_get_voltage(opp);
rcu_read_unlock();
tol = volt * voltage_tolerance / 100;
volt_old = regulator_get_voltage(cpu_reg);
static int cpu0_cpufreq_init(struct cpufreq_policy *policy)
{
- int ret;
-
- ret = cpufreq_frequency_table_cpuinfo(policy, freq_table);
- if (ret) {
- pr_err("invalid frequency table: %d\n", ret);
- return ret;
- }
-
- policy->cpuinfo.transition_latency = transition_latency;
- policy->cur = clk_get_rate(cpu_clk) / 1000;
-
- /*
- * The driver only supports the SMP configuartion where all processors
- * share the clock and voltage and clock. Use cpufreq affected_cpus
- * interface to have all CPUs scaled together.
- */
- cpumask_setall(policy->cpus);
-
- cpufreq_frequency_table_get_attr(freq_table, policy->cpu);
-
- return 0;
-}
-
-static int cpu0_cpufreq_exit(struct cpufreq_policy *policy)
-{
- cpufreq_frequency_table_put_attr(policy->cpu);
-
- return 0;
+ return cpufreq_generic_init(policy, freq_table, transition_latency);
}
-static struct freq_attr *cpu0_cpufreq_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
static struct cpufreq_driver cpu0_cpufreq_driver = {
.flags = CPUFREQ_STICKY,
- .verify = cpu0_verify_speed,
- .target = cpu0_set_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = cpu0_set_target,
.get = cpu0_get_speed,
.init = cpu0_cpufreq_init,
- .exit = cpu0_cpufreq_exit,
+ .exit = cpufreq_generic_exit,
.name = "generic_cpu0",
- .attr = cpu0_cpufreq_attr,
+ .attr = cpufreq_generic_attr,
};
static int cpu0_cpufreq_probe(struct platform_device *pdev)
goto out_put_node;
}
- ret = opp_init_cpufreq_table(cpu_dev, &freq_table);
+ ret = dev_pm_opp_init_cpufreq_table(cpu_dev, &freq_table);
if (ret) {
pr_err("failed to init cpufreq table: %d\n", ret);
goto out_put_node;
if (of_property_read_u32(np, "clock-latency", &transition_latency))
transition_latency = CPUFREQ_ETERNAL;
- if (cpu_reg) {
- struct opp *opp;
+ if (!IS_ERR(cpu_reg)) {
+ struct dev_pm_opp *opp;
unsigned long min_uV, max_uV;
int i;
for (i = 0; freq_table[i].frequency != CPUFREQ_TABLE_END; i++)
;
rcu_read_lock();
- opp = opp_find_freq_exact(cpu_dev,
+ opp = dev_pm_opp_find_freq_exact(cpu_dev,
freq_table[0].frequency * 1000, true);
- min_uV = opp_get_voltage(opp);
- opp = opp_find_freq_exact(cpu_dev,
+ min_uV = dev_pm_opp_get_voltage(opp);
+ opp = dev_pm_opp_find_freq_exact(cpu_dev,
freq_table[i-1].frequency * 1000, true);
- max_uV = opp_get_voltage(opp);
+ max_uV = dev_pm_opp_get_voltage(opp);
rcu_read_unlock();
ret = regulator_set_voltage_time(cpu_reg, min_uV, max_uV);
if (ret > 0)
return 0;
out_free_table:
- opp_free_cpufreq_table(cpu_dev, &freq_table);
+ dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table);
out_put_node:
of_node_put(np);
return ret;
static int cpu0_cpufreq_remove(struct platform_device *pdev)
{
cpufreq_unregister_driver(&cpu0_cpufreq_driver);
- opp_free_cpufreq_table(cpu_dev, &freq_table);
+ dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table);
return 0;
}
if (policy->min < (fsb_pol_max * fid * 100))
policy->max = (fsb_pol_max + 1) * fid * 100;
- cpufreq_verify_within_limits(policy,
- policy->cpuinfo.min_freq,
- policy->cpuinfo.max_freq);
+ cpufreq_verify_within_cpu_limits(policy);
return 0;
}
policy->min = policy->cpuinfo.min_freq = min_fsb * fid * 100;
policy->max = policy->cpuinfo.max_freq = max_fsb * fid * 100;
policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
- policy->cur = nforce2_get(policy->cpu);
return 0;
}
static DEFINE_PER_CPU(char[CPUFREQ_NAME_LEN], cpufreq_cpu_governor);
#endif
-/*
- * cpu_policy_rwsem is a per CPU reader-writer semaphore designed to cure
- * all cpufreq/hotplug/workqueue/etc related lock issues.
- *
- * The rules for this semaphore:
- * - Any routine that wants to read from the policy structure will
- * do a down_read on this semaphore.
- * - Any routine that will write to the policy structure and/or may take away
- * the policy altogether (eg. CPU hotplug), will hold this lock in write
- * mode before doing so.
- *
- * Additional rules:
- * - Governor routines that can be called in cpufreq hotplug path should not
- * take this sem as top level hotplug notifier handler takes this.
- * - Lock should not be held across
- * __cpufreq_governor(data, CPUFREQ_GOV_STOP);
- */
-static DEFINE_PER_CPU(struct rw_semaphore, cpu_policy_rwsem);
-
-#define lock_policy_rwsem(mode, cpu) \
-static int lock_policy_rwsem_##mode(int cpu) \
-{ \
- struct cpufreq_policy *policy = per_cpu(cpufreq_cpu_data, cpu); \
- BUG_ON(!policy); \
- down_##mode(&per_cpu(cpu_policy_rwsem, policy->cpu)); \
- \
- return 0; \
-}
-
-lock_policy_rwsem(read, cpu);
-lock_policy_rwsem(write, cpu);
-
-#define unlock_policy_rwsem(mode, cpu) \
-static void unlock_policy_rwsem_##mode(int cpu) \
-{ \
- struct cpufreq_policy *policy = per_cpu(cpufreq_cpu_data, cpu); \
- BUG_ON(!policy); \
- up_##mode(&per_cpu(cpu_policy_rwsem, policy->cpu)); \
+static inline bool has_target(void)
+{
+ return cpufreq_driver->target_index || cpufreq_driver->target;
}
-unlock_policy_rwsem(read, cpu);
-unlock_policy_rwsem(write, cpu);
-
/*
* rwsem to guarantee that cpufreq driver module doesn't unload during critical
* sections
bool have_governor_per_policy(void)
{
- return cpufreq_driver->have_governor_per_policy;
+ return !!(cpufreq_driver->flags & CPUFREQ_HAVE_GOVERNOR_PER_POLICY);
}
EXPORT_SYMBOL_GPL(have_governor_per_policy);
}
EXPORT_SYMBOL_GPL(get_cpu_idle_time);
+/*
+ * This is a generic cpufreq init() routine which can be used by cpufreq
+ * drivers of SMP systems. It will do following:
+ * - validate & show freq table passed
+ * - set policies transition latency
+ * - policy->cpus with all possible CPUs
+ */
+int cpufreq_generic_init(struct cpufreq_policy *policy,
+ struct cpufreq_frequency_table *table,
+ unsigned int transition_latency)
+{
+ int ret;
+
+ ret = cpufreq_table_validate_and_show(policy, table);
+ if (ret) {
+ pr_err("%s: invalid frequency table: %d\n", __func__, ret);
+ return ret;
+ }
+
+ policy->cpuinfo.transition_latency = transition_latency;
+
+ /*
+ * The driver only supports the SMP configuartion where all processors
+ * share the clock and voltage and clock.
+ */
+ cpumask_setall(policy->cpus);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(cpufreq_generic_init);
+
struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu)
{
struct cpufreq_policy *policy = NULL;
*policy = CPUFREQ_POLICY_POWERSAVE;
err = 0;
}
- } else if (cpufreq_driver->target) {
+ } else if (has_target()) {
struct cpufreq_governor *t;
mutex_lock(&cpufreq_governor_mutex);
show_one(scaling_max_freq, max);
show_one(scaling_cur_freq, cur);
-static int __cpufreq_set_policy(struct cpufreq_policy *policy,
+static int cpufreq_set_policy(struct cpufreq_policy *policy,
struct cpufreq_policy *new_policy);
/**
if (ret != 1) \
return -EINVAL; \
\
- ret = __cpufreq_set_policy(policy, &new_policy); \
+ ret = cpufreq_set_policy(policy, &new_policy); \
policy->user_policy.object = policy->object; \
\
return ret ? ret : count; \
&new_policy.governor))
return -EINVAL;
- /*
- * Do not use cpufreq_set_policy here or the user_policy.max
- * will be wrongly overridden
- */
- ret = __cpufreq_set_policy(policy, &new_policy);
+ ret = cpufreq_set_policy(policy, &new_policy);
policy->user_policy.policy = policy->policy;
policy->user_policy.governor = policy->governor;
ssize_t i = 0;
struct cpufreq_governor *t;
- if (!cpufreq_driver->target) {
+ if (!has_target()) {
i += sprintf(buf, "performance powersave");
goto out;
}
{
struct cpufreq_policy *policy = to_policy(kobj);
struct freq_attr *fattr = to_attr(attr);
- ssize_t ret = -EINVAL;
+ ssize_t ret;
if (!down_read_trylock(&cpufreq_rwsem))
- goto exit;
+ return -EINVAL;
- if (lock_policy_rwsem_read(policy->cpu) < 0)
- goto up_read;
+ down_read(&policy->rwsem);
if (fattr->show)
ret = fattr->show(policy, buf);
else
ret = -EIO;
- unlock_policy_rwsem_read(policy->cpu);
-
-up_read:
+ up_read(&policy->rwsem);
up_read(&cpufreq_rwsem);
-exit:
+
return ret;
}
if (!down_read_trylock(&cpufreq_rwsem))
goto unlock;
- if (lock_policy_rwsem_write(policy->cpu) < 0)
- goto up_read;
+ down_write(&policy->rwsem);
if (fattr->store)
ret = fattr->store(policy, buf, count);
else
ret = -EIO;
- unlock_policy_rwsem_write(policy->cpu);
+ up_write(&policy->rwsem);
-up_read:
up_read(&cpufreq_rwsem);
unlock:
put_online_cpus();
if (ret)
goto err_out_kobj_put;
}
- if (cpufreq_driver->target) {
+ if (has_target()) {
ret = sysfs_create_file(&policy->kobj, &scaling_cur_freq.attr);
if (ret)
goto err_out_kobj_put;
int ret = 0;
memcpy(&new_policy, policy, sizeof(*policy));
- /* assure that the starting sequence is run in __cpufreq_set_policy */
+ /* assure that the starting sequence is run in cpufreq_set_policy */
policy->governor = NULL;
/* set default policy */
- ret = __cpufreq_set_policy(policy, &new_policy);
+ ret = cpufreq_set_policy(policy, &new_policy);
policy->user_policy.policy = policy->policy;
policy->user_policy.governor = policy->governor;
unsigned int cpu, struct device *dev,
bool frozen)
{
- int ret = 0, has_target = !!cpufreq_driver->target;
+ int ret = 0;
unsigned long flags;
- if (has_target) {
+ if (has_target()) {
ret = __cpufreq_governor(policy, CPUFREQ_GOV_STOP);
if (ret) {
pr_err("%s: Failed to stop governor\n", __func__);
}
}
- lock_policy_rwsem_write(policy->cpu);
+ down_write(&policy->rwsem);
write_lock_irqsave(&cpufreq_driver_lock, flags);
per_cpu(cpufreq_cpu_data, cpu) = policy;
write_unlock_irqrestore(&cpufreq_driver_lock, flags);
- unlock_policy_rwsem_write(policy->cpu);
+ up_write(&policy->rwsem);
- if (has_target) {
+ if (has_target()) {
if ((ret = __cpufreq_governor(policy, CPUFREQ_GOV_START)) ||
(ret = __cpufreq_governor(policy, CPUFREQ_GOV_LIMITS))) {
pr_err("%s: Failed to start governor\n", __func__);
goto err_free_cpumask;
INIT_LIST_HEAD(&policy->policy_list);
+ init_rwsem(&policy->rwsem);
+
return policy;
err_free_cpumask:
static void update_policy_cpu(struct cpufreq_policy *policy, unsigned int cpu)
{
- if (cpu == policy->cpu)
+ if (WARN_ON(cpu == policy->cpu))
return;
- /*
- * Take direct locks as lock_policy_rwsem_write wouldn't work here.
- * Also lock for last cpu is enough here as contention will happen only
- * after policy->cpu is changed and after it is changed, other threads
- * will try to acquire lock for new cpu. And policy is already updated
- * by then.
- */
- down_write(&per_cpu(cpu_policy_rwsem, policy->cpu));
+ down_write(&policy->rwsem);
policy->last_cpu = policy->cpu;
policy->cpu = cpu;
- up_write(&per_cpu(cpu_policy_rwsem, policy->last_cpu));
+ up_write(&policy->rwsem);
-#ifdef CONFIG_CPU_FREQ_TABLE
cpufreq_frequency_table_update_policy_cpu(policy);
-#endif
blocking_notifier_call_chain(&cpufreq_policy_notifier_list,
CPUFREQ_UPDATE_POLICY_CPU, policy);
}
goto err_set_policy_cpu;
}
+ if (cpufreq_driver->get) {
+ policy->cur = cpufreq_driver->get(policy->cpu);
+ if (!policy->cur) {
+ pr_err("%s: ->get() failed\n", __func__);
+ goto err_get_freq;
+ }
+ }
+
/* related cpus should atleast have policy->cpus */
cpumask_or(policy->related_cpus, policy->related_cpus, policy->cpus);
per_cpu(cpufreq_cpu_data, j) = NULL;
write_unlock_irqrestore(&cpufreq_driver_lock, flags);
+err_get_freq:
+ if (cpufreq_driver->exit)
+ cpufreq_driver->exit(policy);
err_set_policy_cpu:
cpufreq_policy_free(policy);
nomem_out:
if (ret) {
pr_err("%s: Failed to move kobj: %d", __func__, ret);
- WARN_ON(lock_policy_rwsem_write(old_cpu));
+ down_write(&policy->rwsem);
cpumask_set_cpu(old_cpu, policy->cpus);
- unlock_policy_rwsem_write(old_cpu);
+ up_write(&policy->rwsem);
ret = sysfs_create_link(&cpu_dev->kobj, &policy->kobj,
"cpufreq");
return -EINVAL;
}
- if (cpufreq_driver->target) {
+ if (has_target()) {
ret = __cpufreq_governor(policy, CPUFREQ_GOV_STOP);
if (ret) {
pr_err("%s: Failed to stop governor\n", __func__);
policy->governor->name, CPUFREQ_NAME_LEN);
#endif
- lock_policy_rwsem_read(cpu);
+ down_read(&policy->rwsem);
cpus = cpumask_weight(policy->cpus);
- unlock_policy_rwsem_read(cpu);
+ up_read(&policy->rwsem);
if (cpu != policy->cpu) {
if (!frozen)
sysfs_remove_link(&dev->kobj, "cpufreq");
} else if (cpus > 1) {
-
new_cpu = cpufreq_nominate_new_policy_cpu(policy, cpu, frozen);
if (new_cpu >= 0) {
update_policy_cpu(policy, new_cpu);
if (!frozen) {
- pr_debug("%s: policy Kobject moved to cpu: %d "
- "from: %d\n",__func__, new_cpu, cpu);
+ pr_debug("%s: policy Kobject moved to cpu: %d from: %d\n",
+ __func__, new_cpu, cpu);
}
}
}
return -EINVAL;
}
- WARN_ON(lock_policy_rwsem_write(cpu));
+ down_write(&policy->rwsem);
cpus = cpumask_weight(policy->cpus);
if (cpus > 1)
cpumask_clear_cpu(cpu, policy->cpus);
- unlock_policy_rwsem_write(cpu);
+ up_write(&policy->rwsem);
/* If cpu is last user of policy, free policy */
if (cpus == 1) {
- if (cpufreq_driver->target) {
+ if (has_target()) {
ret = __cpufreq_governor(policy,
CPUFREQ_GOV_POLICY_EXIT);
if (ret) {
}
if (!frozen) {
- lock_policy_rwsem_read(cpu);
+ down_read(&policy->rwsem);
kobj = &policy->kobj;
cmp = &policy->kobj_unregister;
- unlock_policy_rwsem_read(cpu);
+ up_read(&policy->rwsem);
kobject_put(kobj);
/*
if (!frozen)
cpufreq_policy_free(policy);
} else {
- if (cpufreq_driver->target) {
+ if (has_target()) {
if ((ret = __cpufreq_governor(policy, CPUFREQ_GOV_START)) ||
(ret = __cpufreq_governor(policy, CPUFREQ_GOV_LIMITS))) {
pr_err("%s: Failed to start governor\n",
}
/**
- * __cpufreq_remove_dev - remove a CPU device
+ * cpufreq_remove_dev - remove a CPU device
*
* Removes the cpufreq interface for a CPU device.
- * Caller should already have policy_rwsem in write mode for this CPU.
- * This routine frees the rwsem before returning.
*/
-static inline int __cpufreq_remove_dev(struct device *dev,
- struct subsys_interface *sif,
- bool frozen)
-{
- int ret;
-
- ret = __cpufreq_remove_dev_prepare(dev, sif, frozen);
-
- if (!ret)
- ret = __cpufreq_remove_dev_finish(dev, sif, frozen);
-
- return ret;
-}
-
static int cpufreq_remove_dev(struct device *dev, struct subsys_interface *sif)
{
unsigned int cpu = dev->id;
- int retval;
+ int ret;
if (cpu_is_offline(cpu))
return 0;
- retval = __cpufreq_remove_dev(dev, sif, false);
- return retval;
+ ret = __cpufreq_remove_dev_prepare(dev, sif, false);
+
+ if (!ret)
+ ret = __cpufreq_remove_dev_finish(dev, sif, false);
+
+ return ret;
}
static void handle_update(struct work_struct *work)
*/
unsigned int cpufreq_get(unsigned int cpu)
{
+ struct cpufreq_policy *policy = per_cpu(cpufreq_cpu_data, cpu);
unsigned int ret_freq = 0;
+ if (cpufreq_disabled() || !cpufreq_driver)
+ return -ENOENT;
+
+ BUG_ON(!policy);
+
if (!down_read_trylock(&cpufreq_rwsem))
return 0;
- if (unlikely(lock_policy_rwsem_read(cpu)))
- goto out_policy;
+ down_read(&policy->rwsem);
ret_freq = __cpufreq_get(cpu);
- unlock_policy_rwsem_read(cpu);
-
-out_policy:
+ up_read(&policy->rwsem);
up_read(&cpufreq_rwsem);
return ret_freq;
pr_debug("target for CPU %u: %u kHz, relation %u, requested %u kHz\n",
policy->cpu, target_freq, relation, old_target_freq);
+ /*
+ * This might look like a redundant call as we are checking it again
+ * after finding index. But it is left intentionally for cases where
+ * exactly same freq is called again and so we can save on few function
+ * calls.
+ */
if (target_freq == policy->cur)
return 0;
if (cpufreq_driver->target)
retval = cpufreq_driver->target(policy, target_freq, relation);
+ else if (cpufreq_driver->target_index) {
+ struct cpufreq_frequency_table *freq_table;
+ int index;
+
+ freq_table = cpufreq_frequency_get_table(policy->cpu);
+ if (unlikely(!freq_table)) {
+ pr_err("%s: Unable to find freq_table\n", __func__);
+ goto out;
+ }
+
+ retval = cpufreq_frequency_table_target(policy, freq_table,
+ target_freq, relation, &index);
+ if (unlikely(retval)) {
+ pr_err("%s: Unable to find matching freq\n", __func__);
+ goto out;
+ }
+ if (freq_table[index].frequency == policy->cur)
+ retval = 0;
+ else
+ retval = cpufreq_driver->target_index(policy, index);
+ }
+
+out:
return retval;
}
EXPORT_SYMBOL_GPL(__cpufreq_driver_target);
{
int ret = -EINVAL;
- if (unlikely(lock_policy_rwsem_write(policy->cpu)))
- goto fail;
+ down_write(&policy->rwsem);
ret = __cpufreq_driver_target(policy, target_freq, relation);
- unlock_policy_rwsem_write(policy->cpu);
+ up_write(&policy->rwsem);
-fail:
return ret;
}
EXPORT_SYMBOL_GPL(cpufreq_driver_target);
EXPORT_SYMBOL(cpufreq_get_policy);
/*
- * data : current policy.
- * policy : policy to be set.
+ * policy : current policy.
+ * new_policy: policy to be set.
*/
-static int __cpufreq_set_policy(struct cpufreq_policy *policy,
+static int cpufreq_set_policy(struct cpufreq_policy *policy,
struct cpufreq_policy *new_policy)
{
int ret = 0, failed = 1;
/* end old governor */
if (policy->governor) {
__cpufreq_governor(policy, CPUFREQ_GOV_STOP);
- unlock_policy_rwsem_write(new_policy->cpu);
+ up_write(&policy->rwsem);
__cpufreq_governor(policy,
CPUFREQ_GOV_POLICY_EXIT);
- lock_policy_rwsem_write(new_policy->cpu);
+ down_write(&policy->rwsem);
}
/* start new governor */
if (!__cpufreq_governor(policy, CPUFREQ_GOV_START)) {
failed = 0;
} else {
- unlock_policy_rwsem_write(new_policy->cpu);
+ up_write(&policy->rwsem);
__cpufreq_governor(policy,
CPUFREQ_GOV_POLICY_EXIT);
- lock_policy_rwsem_write(new_policy->cpu);
+ down_write(&policy->rwsem);
}
}
goto no_policy;
}
- if (unlikely(lock_policy_rwsem_write(cpu))) {
- ret = -EINVAL;
- goto fail;
- }
+ down_write(&policy->rwsem);
pr_debug("updating policy for CPU %u\n", cpu);
memcpy(&new_policy, policy, sizeof(*policy));
pr_debug("Driver did not initialize current freq");
policy->cur = new_policy.cur;
} else {
- if (policy->cur != new_policy.cur && cpufreq_driver->target)
+ if (policy->cur != new_policy.cur && has_target())
cpufreq_out_of_sync(cpu, policy->cur,
new_policy.cur);
}
}
- ret = __cpufreq_set_policy(policy, &new_policy);
+ ret = cpufreq_set_policy(policy, &new_policy);
- unlock_policy_rwsem_write(cpu);
+ up_write(&policy->rwsem);
-fail:
cpufreq_cpu_put(policy);
no_policy:
return ret;
return -ENODEV;
if (!driver_data || !driver_data->verify || !driver_data->init ||
- ((!driver_data->setpolicy) && (!driver_data->target)))
+ !(driver_data->setpolicy || driver_data->target_index ||
+ driver_data->target))
return -EINVAL;
pr_debug("trying to register driver %s\n", driver_data->name);
static int __init cpufreq_core_init(void)
{
- int cpu;
-
if (cpufreq_disabled())
return -ENODEV;
- for_each_possible_cpu(cpu)
- init_rwsem(&per_cpu(cpu_policy_rwsem, cpu));
-
cpufreq_global_kobject = kobject_create();
BUG_ON(!cpufreq_global_kobject);
register_syscore_ops(&cpufreq_syscore_ops);
struct attribute_group *attr_group_gov_sys; /* one governor - system */
struct attribute_group *attr_group_gov_pol; /* one governor - policy */
- /* Common data for platforms that don't set have_governor_per_policy */
+ /*
+ * Common data for platforms that don't set
+ * CPUFREQ_HAVE_GOVERNOR_PER_POLICY
+ */
struct dbs_data *gdbs_data;
struct cpu_dbs_common_info *(*get_cpu_cdbs)(int cpu);
if (!per_cpu(cpu_is_managed, policy->cpu))
goto err;
- /*
- * We're safe from concurrent calls to ->target() here
- * as we hold the userspace_mutex lock. If we were calling
- * cpufreq_driver_target, a deadlock situation might occur:
- * A: cpufreq_set (lock userspace_mutex) ->
- * cpufreq_driver_target(lock policy->lock)
- * B: cpufreq_set_policy(lock policy->lock) ->
- * __cpufreq_governor ->
- * cpufreq_governor_userspace (lock userspace_mutex)
- */
ret = __cpufreq_driver_target(policy, freq, CPUFREQ_RELATION_L);
-
err:
mutex_unlock(&userspace_mutex);
return ret;
return clk_ctrl.pll ? 200000 : 6000;
}
-static void cris_freq_set_cpu_state(struct cpufreq_policy *policy,
- unsigned int state)
+static int cris_freq_target(struct cpufreq_policy *policy, unsigned int state)
{
struct cpufreq_freqs freqs;
reg_clkgen_rw_clk_ctrl clk_ctrl;
local_irq_enable();
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-};
-
-static int cris_freq_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, &cris_freq_table[0]);
-}
-
-static int cris_freq_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
-{
- unsigned int newstate = 0;
-
- if (cpufreq_frequency_table_target(policy, cris_freq_table,
- target_freq, relation, &newstate))
- return -EINVAL;
-
- cris_freq_set_cpu_state(policy, newstate);
return 0;
}
static int cris_freq_cpu_init(struct cpufreq_policy *policy)
{
- int result;
-
- /* cpuinfo and default policy values */
- policy->cpuinfo.transition_latency = 1000000; /* 1ms */
- policy->cur = cris_freq_get_cpu_frequency(0);
-
- result = cpufreq_frequency_table_cpuinfo(policy, cris_freq_table);
- if (result)
- return (result);
-
- cpufreq_frequency_table_get_attr(cris_freq_table, policy->cpu);
-
- return 0;
-}
-
-
-static int cris_freq_cpu_exit(struct cpufreq_policy *policy)
-{
- cpufreq_frequency_table_put_attr(policy->cpu);
- return 0;
+ return cpufreq_generic_init(policy, cris_freq_table, 1000000);
}
-
-static struct freq_attr *cris_freq_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
static struct cpufreq_driver cris_freq_driver = {
.get = cris_freq_get_cpu_frequency,
- .verify = cris_freq_verify,
- .target = cris_freq_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = cris_freq_target,
.init = cris_freq_cpu_init,
- .exit = cris_freq_cpu_exit,
+ .exit = cpufreq_generic_exit,
.name = "cris_freq",
- .attr = cris_freq_attr,
+ .attr = cpufreq_generic_attr,
};
static int __init cris_freq_init(void)
return clk_ctrl.pll ? 200000 : 6000;
}
-static void cris_freq_set_cpu_state(struct cpufreq_policy *policy,
- unsigned int state)
+static int cris_freq_target(struct cpufreq_policy *policy, unsigned int state)
{
struct cpufreq_freqs freqs;
reg_config_rw_clk_ctrl clk_ctrl;
local_irq_enable();
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-};
-
-static int cris_freq_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, &cris_freq_table[0]);
-}
-
-static int cris_freq_target(struct cpufreq_policy *policy,
- unsigned int target_freq, unsigned int relation)
-{
- unsigned int newstate = 0;
-
- if (cpufreq_frequency_table_target
- (policy, cris_freq_table, target_freq, relation, &newstate))
- return -EINVAL;
-
- cris_freq_set_cpu_state(policy, newstate);
return 0;
}
static int cris_freq_cpu_init(struct cpufreq_policy *policy)
{
- int result;
-
- /* cpuinfo and default policy values */
- policy->cpuinfo.transition_latency = 1000000; /* 1ms */
- policy->cur = cris_freq_get_cpu_frequency(0);
-
- result = cpufreq_frequency_table_cpuinfo(policy, cris_freq_table);
- if (result)
- return (result);
-
- cpufreq_frequency_table_get_attr(cris_freq_table, policy->cpu);
-
- return 0;
+ return cpufreq_generic_init(policy, cris_freq_table, 1000000);
}
-static int cris_freq_cpu_exit(struct cpufreq_policy *policy)
-{
- cpufreq_frequency_table_put_attr(policy->cpu);
- return 0;
-}
-
-static struct freq_attr *cris_freq_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
static struct cpufreq_driver cris_freq_driver = {
.get = cris_freq_get_cpu_frequency,
- .verify = cris_freq_verify,
- .target = cris_freq_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = cris_freq_target,
.init = cris_freq_cpu_init,
- .exit = cris_freq_cpu_exit,
+ .exit = cpufreq_generic_exit,
.name = "cris_freq",
- .attr = cris_freq_attr,
+ .attr = cpufreq_generic_attr,
};
static int __init cris_freq_init(void)
if (policy->cpu)
return -EINVAL;
- cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
- policy->cpuinfo.max_freq);
-
+ cpufreq_verify_within_cpu_limits(policy);
policy->min = clk_round_rate(armclk, policy->min * 1000) / 1000;
policy->max = clk_round_rate(armclk, policy->max * 1000) / 1000;
cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
return clk_get_rate(cpufreq.armclk) / 1000;
}
-static int davinci_target(struct cpufreq_policy *policy,
- unsigned int target_freq, unsigned int relation)
+static int davinci_target(struct cpufreq_policy *policy, unsigned int idx)
{
int ret = 0;
- unsigned int idx;
struct cpufreq_freqs freqs;
struct davinci_cpufreq_config *pdata = cpufreq.dev->platform_data;
struct clk *armclk = cpufreq.armclk;
freqs.old = davinci_getspeed(0);
- freqs.new = clk_round_rate(armclk, target_freq * 1000) / 1000;
-
- if (freqs.old == freqs.new)
- return ret;
+ freqs.new = pdata->freq_table[idx].frequency;
dev_dbg(cpufreq.dev, "transition: %u --> %u\n", freqs.old, freqs.new);
- ret = cpufreq_frequency_table_target(policy, pdata->freq_table,
- freqs.new, relation, &idx);
- if (ret)
- return -EINVAL;
-
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
/* if moving to higher frequency, up the voltage beforehand */
return result;
}
- policy->cur = davinci_getspeed(0);
-
- result = cpufreq_frequency_table_cpuinfo(policy, freq_table);
- if (result) {
- pr_err("%s: cpufreq_frequency_table_cpuinfo() failed",
- __func__);
- return result;
- }
-
- cpufreq_frequency_table_get_attr(freq_table, policy->cpu);
-
/*
* Time measurement across the target() function yields ~1500-1800us
* time taken with no drivers on notification list.
* Setting the latency to 2000 us to accommodate addition of drivers
* to pre/post change notification list.
*/
- policy->cpuinfo.transition_latency = 2000 * 1000;
- return 0;
-}
-
-static int davinci_cpu_exit(struct cpufreq_policy *policy)
-{
- cpufreq_frequency_table_put_attr(policy->cpu);
- return 0;
+ return cpufreq_generic_init(policy, freq_table, 2000 * 1000);
}
-static struct freq_attr *davinci_cpufreq_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
static struct cpufreq_driver davinci_driver = {
.flags = CPUFREQ_STICKY,
.verify = davinci_verify_speed,
- .target = davinci_target,
+ .target_index = davinci_target,
.get = davinci_getspeed,
.init = davinci_cpu_init,
- .exit = davinci_cpu_exit,
+ .exit = cpufreq_generic_exit,
.name = "davinci",
- .attr = davinci_cpufreq_attr,
+ .attr = cpufreq_generic_attr,
};
static int __init davinci_cpufreq_probe(struct platform_device *pdev)
static struct cpufreq_frequency_table *freq_table;
static struct clk *armss_clk;
-static struct freq_attr *dbx500_cpufreq_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
-static int dbx500_cpufreq_verify_speed(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, freq_table);
-}
-
static int dbx500_cpufreq_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
+ unsigned int index)
{
struct cpufreq_freqs freqs;
- unsigned int idx;
int ret;
- /* Lookup the next frequency */
- if (cpufreq_frequency_table_target(policy, freq_table, target_freq,
- relation, &idx))
- return -EINVAL;
-
freqs.old = policy->cur;
- freqs.new = freq_table[idx].frequency;
-
- if (freqs.old == freqs.new)
- return 0;
+ freqs.new = freq_table[index].frequency;
/* pre-change notification */
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
static int dbx500_cpufreq_init(struct cpufreq_policy *policy)
{
- int res;
-
- /* get policy fields based on the table */
- res = cpufreq_frequency_table_cpuinfo(policy, freq_table);
- if (!res)
- cpufreq_frequency_table_get_attr(freq_table, policy->cpu);
- else {
- pr_err("dbx500-cpufreq: Failed to read policy table\n");
- return res;
- }
-
- policy->min = policy->cpuinfo.min_freq;
- policy->max = policy->cpuinfo.max_freq;
- policy->cur = dbx500_cpufreq_getspeed(policy->cpu);
- policy->governor = CPUFREQ_DEFAULT_GOVERNOR;
-
- /*
- * FIXME : Need to take time measurement across the target()
- * function with no/some/all drivers in the notification
- * list.
- */
- policy->cpuinfo.transition_latency = 20 * 1000; /* in ns */
-
- /* policy sharing between dual CPUs */
- cpumask_setall(policy->cpus);
-
- return 0;
+ return cpufreq_generic_init(policy, freq_table, 20 * 1000);
}
static struct cpufreq_driver dbx500_cpufreq_driver = {
.flags = CPUFREQ_STICKY | CPUFREQ_CONST_LOOPS,
- .verify = dbx500_cpufreq_verify_speed,
- .target = dbx500_cpufreq_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = dbx500_cpufreq_target,
.get = dbx500_cpufreq_getspeed,
.init = dbx500_cpufreq_init,
.name = "DBX500",
- .attr = dbx500_cpufreq_attr,
+ .attr = cpufreq_generic_attr,
};
static int dbx500_cpufreq_probe(struct platform_device *pdev)
return err;
}
-static int eps_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
+static int eps_target(struct cpufreq_policy *policy, unsigned int index)
{
struct eps_cpu_data *centaur;
- unsigned int newstate = 0;
unsigned int cpu = policy->cpu;
unsigned int dest_state;
int ret;
return -ENODEV;
centaur = eps_cpu[cpu];
- if (unlikely(cpufreq_frequency_table_target(policy,
- &eps_cpu[cpu]->freq_table[0],
- target_freq,
- relation,
- &newstate))) {
- return -EINVAL;
- }
-
/* Make frequency transition */
- dest_state = centaur->freq_table[newstate].driver_data & 0xffff;
+ dest_state = centaur->freq_table[index].driver_data & 0xffff;
ret = eps_set_state(centaur, policy, dest_state);
if (ret)
printk(KERN_ERR "eps: Timeout!\n");
return ret;
}
-static int eps_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy,
- &eps_cpu[policy->cpu]->freq_table[0]);
-}
-
static int eps_cpu_init(struct cpufreq_policy *policy)
{
unsigned int i;
}
policy->cpuinfo.transition_latency = 140000; /* 844mV -> 700mV in ns */
- policy->cur = fsb * current_multiplier;
- ret = cpufreq_frequency_table_cpuinfo(policy, ¢aur->freq_table[0]);
+ ret = cpufreq_table_validate_and_show(policy, ¢aur->freq_table[0]);
if (ret) {
kfree(centaur);
return ret;
}
- cpufreq_frequency_table_get_attr(¢aur->freq_table[0], policy->cpu);
return 0;
}
return 0;
}
-static struct freq_attr *eps_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
static struct cpufreq_driver eps_driver = {
- .verify = eps_verify,
- .target = eps_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = eps_target,
.init = eps_cpu_init,
.exit = eps_cpu_exit,
.get = eps_get,
.name = "e_powersaver",
- .attr = eps_attr,
+ .attr = cpufreq_generic_attr,
};
}
-/**
- * elanfreq_set_cpu_frequency: Change the CPU core frequency
- * @cpu: cpu number
- * @freq: frequency in kHz
- *
- * This function takes a frequency value and changes the CPU frequency
- * according to this. Note that the frequency has to be checked by
- * elanfreq_validatespeed() for correctness!
- *
- * There is no return value.
- */
-
-static void elanfreq_set_cpu_state(struct cpufreq_policy *policy,
- unsigned int state)
+static int elanfreq_target(struct cpufreq_policy *policy,
+ unsigned int state)
{
struct cpufreq_freqs freqs;
local_irq_enable();
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-};
-
-
-/**
- * elanfreq_validatespeed: test if frequency range is valid
- * @policy: the policy to validate
- *
- * This function checks if a given frequency range in kHz is valid
- * for the hardware supported by the driver.
- */
-
-static int elanfreq_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, &elanfreq_table[0]);
-}
-
-static int elanfreq_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
-{
- unsigned int newstate = 0;
-
- if (cpufreq_frequency_table_target(policy, &elanfreq_table[0],
- target_freq, relation, &newstate))
- return -EINVAL;
-
- elanfreq_set_cpu_state(policy, newstate);
return 0;
}
-
-
/*
* Module init and exit code
*/
{
struct cpuinfo_x86 *c = &cpu_data(0);
unsigned int i;
- int result;
/* capability check */
if ((c->x86_vendor != X86_VENDOR_AMD) ||
/* cpuinfo and default policy values */
policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
- policy->cur = elanfreq_get_cpu_frequency(0);
-
- result = cpufreq_frequency_table_cpuinfo(policy, elanfreq_table);
- if (result)
- return result;
-
- cpufreq_frequency_table_get_attr(elanfreq_table, policy->cpu);
- return 0;
-}
-
-static int elanfreq_cpu_exit(struct cpufreq_policy *policy)
-{
- cpufreq_frequency_table_put_attr(policy->cpu);
- return 0;
+ return cpufreq_table_validate_and_show(policy, elanfreq_table);
}
#endif
-static struct freq_attr *elanfreq_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
-
static struct cpufreq_driver elanfreq_driver = {
.get = elanfreq_get_cpu_frequency,
- .verify = elanfreq_verify,
- .target = elanfreq_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = elanfreq_target,
.init = elanfreq_cpu_init,
- .exit = elanfreq_cpu_exit,
+ .exit = cpufreq_generic_exit,
.name = "elanfreq",
- .attr = elanfreq_attr,
+ .attr = cpufreq_generic_attr,
};
static const struct x86_cpu_id elan_id[] = {
static bool frequency_locked;
static DEFINE_MUTEX(cpufreq_lock);
-static int exynos_verify_speed(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy,
- exynos_info->freq_table);
-}
-
static unsigned int exynos_getspeed(unsigned int cpu)
{
return clk_get_rate(exynos_info->cpu_clk) / 1000;
freqs.old = policy->cur;
freqs.new = target_freq;
- if (freqs.new == freqs.old)
- goto out;
-
/*
* The policy max have been changed so that we cannot get proper
* old_index with cpufreq_frequency_table_target(). Thus, ignore
if ((freqs.new < freqs.old) ||
((freqs.new > freqs.old) && safe_arm_volt)) {
/* down the voltage after frequency change */
- regulator_set_voltage(arm_regulator, arm_volt,
+ ret = regulator_set_voltage(arm_regulator, arm_volt,
arm_volt);
if (ret) {
pr_err("%s: failed to set cpu voltage to %d\n",
return ret;
}
-static int exynos_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
+static int exynos_target(struct cpufreq_policy *policy, unsigned int index)
{
struct cpufreq_frequency_table *freq_table = exynos_info->freq_table;
- unsigned int index;
- unsigned int new_freq;
int ret = 0;
mutex_lock(&cpufreq_lock);
if (frequency_locked)
goto out;
- if (cpufreq_frequency_table_target(policy, freq_table,
- target_freq, relation, &index)) {
- ret = -EINVAL;
- goto out;
- }
-
- new_freq = freq_table[index].frequency;
-
- ret = exynos_cpufreq_scale(new_freq);
+ ret = exynos_cpufreq_scale(freq_table[index].frequency);
out:
mutex_unlock(&cpufreq_lock);
static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy)
{
- policy->cur = policy->min = policy->max = exynos_getspeed(policy->cpu);
-
- cpufreq_frequency_table_get_attr(exynos_info->freq_table, policy->cpu);
-
- /* set the transition latency value */
- policy->cpuinfo.transition_latency = 100000;
-
- cpumask_setall(policy->cpus);
-
- return cpufreq_frequency_table_cpuinfo(policy, exynos_info->freq_table);
+ return cpufreq_generic_init(policy, exynos_info->freq_table, 100000);
}
-static int exynos_cpufreq_cpu_exit(struct cpufreq_policy *policy)
-{
- cpufreq_frequency_table_put_attr(policy->cpu);
- return 0;
-}
-
-static struct freq_attr *exynos_cpufreq_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
static struct cpufreq_driver exynos_driver = {
.flags = CPUFREQ_STICKY,
- .verify = exynos_verify_speed,
- .target = exynos_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = exynos_target,
.get = exynos_getspeed,
.init = exynos_cpufreq_cpu_init,
- .exit = exynos_cpufreq_cpu_exit,
+ .exit = cpufreq_generic_exit,
.name = "exynos_cpufreq",
- .attr = exynos_cpufreq_attr,
+ .attr = cpufreq_generic_attr,
#ifdef CONFIG_PM
.suspend = exynos_cpufreq_suspend,
.resume = exynos_cpufreq_resume,
static void exynos4210_set_apll(unsigned int index)
{
- unsigned int tmp;
+ unsigned int tmp, freq = apll_freq_4210[index].freq;
- /* 1. MUX_CORE_SEL = MPLL, ARMCLK uses MPLL for lock time */
+ /* MUX_CORE_SEL = MPLL, ARMCLK uses MPLL for lock time */
clk_set_parent(moutcore, mout_mpll);
do {
tmp &= 0x7;
} while (tmp != 0x2);
- /* 2. Set APLL Lock time */
- __raw_writel(EXYNOS4_APLL_LOCKTIME, EXYNOS4_APLL_LOCK);
-
- /* 3. Change PLL PMS values */
- tmp = __raw_readl(EXYNOS4_APLL_CON0);
- tmp &= ~((0x3ff << 16) | (0x3f << 8) | (0x7 << 0));
- tmp |= apll_freq_4210[index].mps;
- __raw_writel(tmp, EXYNOS4_APLL_CON0);
+ clk_set_rate(mout_apll, freq * 1000);
- /* 4. wait_lock_time */
- do {
- tmp = __raw_readl(EXYNOS4_APLL_CON0);
- } while (!(tmp & (0x1 << EXYNOS4_APLLCON0_LOCKED_SHIFT)));
-
- /* 5. MUX_CORE_SEL = APLL */
+ /* MUX_CORE_SEL = APLL */
clk_set_parent(moutcore, mout_apll);
do {
} while (tmp != (0x1 << EXYNOS4_CLKSRC_CPU_MUXCORE_SHIFT));
}
-static bool exynos4210_pms_change(unsigned int old_index, unsigned int new_index)
-{
- unsigned int old_pm = apll_freq_4210[old_index].mps >> 8;
- unsigned int new_pm = apll_freq_4210[new_index].mps >> 8;
-
- return (old_pm == new_pm) ? 0 : 1;
-}
-
static void exynos4210_set_frequency(unsigned int old_index,
unsigned int new_index)
{
- unsigned int tmp;
-
if (old_index > new_index) {
- if (!exynos4210_pms_change(old_index, new_index)) {
- /* 1. Change the system clock divider values */
- exynos4210_set_clkdiv(new_index);
-
- /* 2. Change just s value in apll m,p,s value */
- tmp = __raw_readl(EXYNOS4_APLL_CON0);
- tmp &= ~(0x7 << 0);
- tmp |= apll_freq_4210[new_index].mps & 0x7;
- __raw_writel(tmp, EXYNOS4_APLL_CON0);
- } else {
- /* Clock Configuration Procedure */
- /* 1. Change the system clock divider values */
- exynos4210_set_clkdiv(new_index);
- /* 2. Change the apll m,p,s value */
- exynos4210_set_apll(new_index);
- }
+ exynos4210_set_clkdiv(new_index);
+ exynos4210_set_apll(new_index);
} else if (old_index < new_index) {
- if (!exynos4210_pms_change(old_index, new_index)) {
- /* 1. Change just s value in apll m,p,s value */
- tmp = __raw_readl(EXYNOS4_APLL_CON0);
- tmp &= ~(0x7 << 0);
- tmp |= apll_freq_4210[new_index].mps & 0x7;
- __raw_writel(tmp, EXYNOS4_APLL_CON0);
-
- /* 2. Change the system clock divider values */
- exynos4210_set_clkdiv(new_index);
- } else {
- /* Clock Configuration Procedure */
- /* 1. Change the apll m,p,s value */
- exynos4210_set_apll(new_index);
- /* 2. Change the system clock divider values */
- exynos4210_set_clkdiv(new_index);
- }
+ exynos4210_set_apll(new_index);
+ exynos4210_set_clkdiv(new_index);
}
}
info->volt_table = exynos4210_volt_table;
info->freq_table = exynos4210_freq_table;
info->set_freq = exynos4210_set_frequency;
- info->need_apll_change = exynos4210_pms_change;
return 0;
static void exynos4x12_set_apll(unsigned int index)
{
- unsigned int tmp, pdiv;
+ unsigned int tmp, freq = apll_freq_4x12[index].freq;
- /* 1. MUX_CORE_SEL = MPLL, ARMCLK uses MPLL for lock time */
+ /* MUX_CORE_SEL = MPLL, ARMCLK uses MPLL for lock time */
clk_set_parent(moutcore, mout_mpll);
do {
tmp &= 0x7;
} while (tmp != 0x2);
- /* 2. Set APLL Lock time */
- pdiv = ((apll_freq_4x12[index].mps >> 8) & 0x3f);
+ clk_set_rate(mout_apll, freq * 1000);
- __raw_writel((pdiv * 250), EXYNOS4_APLL_LOCK);
-
- /* 3. Change PLL PMS values */
- tmp = __raw_readl(EXYNOS4_APLL_CON0);
- tmp &= ~((0x3ff << 16) | (0x3f << 8) | (0x7 << 0));
- tmp |= apll_freq_4x12[index].mps;
- __raw_writel(tmp, EXYNOS4_APLL_CON0);
-
- /* 4. wait_lock_time */
- do {
- cpu_relax();
- tmp = __raw_readl(EXYNOS4_APLL_CON0);
- } while (!(tmp & (0x1 << EXYNOS4_APLLCON0_LOCKED_SHIFT)));
-
- /* 5. MUX_CORE_SEL = APLL */
+ /* MUX_CORE_SEL = APLL */
clk_set_parent(moutcore, mout_apll);
do {
} while (tmp != (0x1 << EXYNOS4_CLKSRC_CPU_MUXCORE_SHIFT));
}
-static bool exynos4x12_pms_change(unsigned int old_index, unsigned int new_index)
-{
- unsigned int old_pm = apll_freq_4x12[old_index].mps >> 8;
- unsigned int new_pm = apll_freq_4x12[new_index].mps >> 8;
-
- return (old_pm == new_pm) ? 0 : 1;
-}
-
static void exynos4x12_set_frequency(unsigned int old_index,
unsigned int new_index)
{
- unsigned int tmp;
-
if (old_index > new_index) {
- if (!exynos4x12_pms_change(old_index, new_index)) {
- /* 1. Change the system clock divider values */
- exynos4x12_set_clkdiv(new_index);
- /* 2. Change just s value in apll m,p,s value */
- tmp = __raw_readl(EXYNOS4_APLL_CON0);
- tmp &= ~(0x7 << 0);
- tmp |= apll_freq_4x12[new_index].mps & 0x7;
- __raw_writel(tmp, EXYNOS4_APLL_CON0);
-
- } else {
- /* Clock Configuration Procedure */
- /* 1. Change the system clock divider values */
- exynos4x12_set_clkdiv(new_index);
- /* 2. Change the apll m,p,s value */
- exynos4x12_set_apll(new_index);
- }
+ exynos4x12_set_clkdiv(new_index);
+ exynos4x12_set_apll(new_index);
} else if (old_index < new_index) {
- if (!exynos4x12_pms_change(old_index, new_index)) {
- /* 1. Change just s value in apll m,p,s value */
- tmp = __raw_readl(EXYNOS4_APLL_CON0);
- tmp &= ~(0x7 << 0);
- tmp |= apll_freq_4x12[new_index].mps & 0x7;
- __raw_writel(tmp, EXYNOS4_APLL_CON0);
- /* 2. Change the system clock divider values */
- exynos4x12_set_clkdiv(new_index);
- } else {
- /* Clock Configuration Procedure */
- /* 1. Change the apll m,p,s value */
- exynos4x12_set_apll(new_index);
- /* 2. Change the system clock divider values */
- exynos4x12_set_clkdiv(new_index);
- }
+ exynos4x12_set_apll(new_index);
+ exynos4x12_set_clkdiv(new_index);
}
}
info->volt_table = exynos4x12_volt_table;
info->freq_table = exynos4x12_freq_table;
info->set_freq = exynos4x12_set_frequency;
- info->need_apll_change = exynos4x12_pms_change;
return 0;
#include <linux/module.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
struct cpufreq_frequency_table *freq_tbl = dvfs_info->freq_table;
unsigned int tmp, clk_div, ema_div, freq, volt_id;
int i = 0;
- struct opp *opp;
+ struct dev_pm_opp *opp;
rcu_read_lock();
for (i = 0; freq_tbl[i].frequency != CPUFREQ_TABLE_END; i++) {
- opp = opp_find_freq_exact(dvfs_info->dev,
+ opp = dev_pm_opp_find_freq_exact(dvfs_info->dev,
freq_tbl[i].frequency * 1000, true);
if (IS_ERR(opp)) {
rcu_read_unlock();
<< P0_7_CSCLKDEV_SHIFT;
/* Calculate EMA */
- volt_id = opp_get_voltage(opp);
+ volt_id = dev_pm_opp_get_voltage(opp);
volt_id = (MAX_VOLTAGE - volt_id) / VOLTAGE_STEP;
if (volt_id < PMIC_HIGH_VOLT) {
ema_div = (CPUEMA_HIGH << P0_7_CPUEMA_SHIFT) |
dvfs_info->base + XMU_DVFS_CTRL);
}
-static int exynos_verify_speed(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy,
- dvfs_info->freq_table);
-}
-
static unsigned int exynos_getspeed(unsigned int cpu)
{
return dvfs_info->cur_frequency;
}
-static int exynos_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
+static int exynos_target(struct cpufreq_policy *policy, unsigned int index)
{
- unsigned int index, tmp;
- int ret = 0, i;
+ unsigned int tmp;
+ int i;
struct cpufreq_frequency_table *freq_table = dvfs_info->freq_table;
mutex_lock(&cpufreq_lock);
- ret = cpufreq_frequency_table_target(policy, freq_table,
- target_freq, relation, &index);
- if (ret)
- goto out;
-
freqs.old = dvfs_info->cur_frequency;
freqs.new = freq_table[index].frequency;
- if (freqs.old == freqs.new)
- goto out;
-
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
/* Set the target frequency in all C0_3_PSTATE register */
__raw_writel(tmp, dvfs_info->base + XMU_C0_3_PSTATE + i * 4);
}
-out:
mutex_unlock(&cpufreq_lock);
- return ret;
+ return 0;
}
static void exynos_cpufreq_work(struct work_struct *work)
static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy)
{
- int ret;
-
- ret = cpufreq_frequency_table_cpuinfo(policy, dvfs_info->freq_table);
- if (ret) {
- dev_err(dvfs_info->dev, "Invalid frequency table: %d\n", ret);
- return ret;
- }
-
- policy->cur = dvfs_info->cur_frequency;
- policy->cpuinfo.transition_latency = dvfs_info->latency;
- cpumask_setall(policy->cpus);
-
- cpufreq_frequency_table_get_attr(dvfs_info->freq_table, policy->cpu);
-
- return 0;
+ return cpufreq_generic_init(policy, dvfs_info->freq_table,
+ dvfs_info->latency);
}
static struct cpufreq_driver exynos_driver = {
.flags = CPUFREQ_STICKY,
- .verify = exynos_verify_speed,
- .target = exynos_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = exynos_target,
.get = exynos_getspeed,
.init = exynos_cpufreq_cpu_init,
+ .exit = cpufreq_generic_exit,
.name = CPUFREQ_NAME,
+ .attr = cpufreq_generic_attr,
};
static const struct of_device_id exynos_cpufreq_match[] = {
goto err_put_node;
}
- ret = opp_init_cpufreq_table(dvfs_info->dev, &dvfs_info->freq_table);
+ ret = dev_pm_opp_init_cpufreq_table(dvfs_info->dev,
+ &dvfs_info->freq_table);
if (ret) {
dev_err(dvfs_info->dev,
"failed to init cpufreq table: %d\n", ret);
goto err_put_node;
}
- dvfs_info->freq_count = opp_get_opp_count(dvfs_info->dev);
+ dvfs_info->freq_count = dev_pm_opp_get_opp_count(dvfs_info->dev);
exynos_sort_descend_freq_table();
if (of_property_read_u32(np, "clock-latency", &dvfs_info->latency))
return 0;
err_free_table:
- opp_free_cpufreq_table(dvfs_info->dev, &dvfs_info->freq_table);
+ dev_pm_opp_free_cpufreq_table(dvfs_info->dev, &dvfs_info->freq_table);
err_put_node:
of_node_put(np);
- dev_err(dvfs_info->dev, "%s: failed initialization\n", __func__);
+ dev_err(&pdev->dev, "%s: failed initialization\n", __func__);
return ret;
}
static int exynos_cpufreq_remove(struct platform_device *pdev)
{
cpufreq_unregister_driver(&exynos_driver);
- opp_free_cpufreq_table(dvfs_info->dev, &dvfs_info->freq_table);
+ dev_pm_opp_free_cpufreq_table(dvfs_info->dev, &dvfs_info->freq_table);
return 0;
}
int cpufreq_frequency_table_verify(struct cpufreq_policy *policy,
struct cpufreq_frequency_table *table)
{
- unsigned int next_larger = ~0;
- unsigned int i;
- unsigned int count = 0;
+ unsigned int next_larger = ~0, freq, i = 0;
+ bool found = false;
pr_debug("request for verification of policy (%u - %u kHz) for cpu %u\n",
policy->min, policy->max, policy->cpu);
- cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
- policy->cpuinfo.max_freq);
+ cpufreq_verify_within_cpu_limits(policy);
- for (i = 0; (table[i].frequency != CPUFREQ_TABLE_END); i++) {
- unsigned int freq = table[i].frequency;
+ for (; freq = table[i].frequency, freq != CPUFREQ_TABLE_END; i++) {
if (freq == CPUFREQ_ENTRY_INVALID)
continue;
- if ((freq >= policy->min) && (freq <= policy->max))
- count++;
- else if ((next_larger > freq) && (freq > policy->max))
+ if ((freq >= policy->min) && (freq <= policy->max)) {
+ found = true;
+ break;
+ }
+
+ if ((next_larger > freq) && (freq > policy->max))
next_larger = freq;
}
- if (!count)
+ if (!found) {
policy->max = next_larger;
-
- cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
- policy->cpuinfo.max_freq);
+ cpufreq_verify_within_cpu_limits(policy);
+ }
pr_debug("verification lead to (%u - %u kHz) for cpu %u\n",
policy->min, policy->max, policy->cpu);
}
EXPORT_SYMBOL_GPL(cpufreq_frequency_table_verify);
+/*
+ * Generic routine to verify policy & frequency table, requires driver to call
+ * cpufreq_frequency_table_get_attr() prior to it.
+ */
+int cpufreq_generic_frequency_table_verify(struct cpufreq_policy *policy)
+{
+ struct cpufreq_frequency_table *table =
+ cpufreq_frequency_get_table(policy->cpu);
+ if (!table)
+ return -ENODEV;
+
+ return cpufreq_frequency_table_verify(policy, table);
+}
+EXPORT_SYMBOL_GPL(cpufreq_generic_frequency_table_verify);
int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
struct cpufreq_frequency_table *table,
};
EXPORT_SYMBOL_GPL(cpufreq_freq_attr_scaling_available_freqs);
+struct freq_attr *cpufreq_generic_attr[] = {
+ &cpufreq_freq_attr_scaling_available_freqs,
+ NULL,
+};
+EXPORT_SYMBOL_GPL(cpufreq_generic_attr);
+
/*
* if you use these, you must assure that the frequency table is valid
* all the time between get_attr and put_attr!
}
EXPORT_SYMBOL_GPL(cpufreq_frequency_table_put_attr);
+int cpufreq_table_validate_and_show(struct cpufreq_policy *policy,
+ struct cpufreq_frequency_table *table)
+{
+ int ret = cpufreq_frequency_table_cpuinfo(policy, table);
+
+ if (!ret)
+ cpufreq_frequency_table_get_attr(table, policy->cpu);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(cpufreq_table_validate_and_show);
+
void cpufreq_frequency_table_update_policy_cpu(struct cpufreq_policy *policy)
{
pr_debug("Updating show_table for new_cpu %u from last_cpu %u\n",
static int cpufreq_gx_cpu_init(struct cpufreq_policy *policy)
{
- unsigned int maxfreq, curfreq;
+ unsigned int maxfreq;
if (!policy || policy->cpu != 0)
return -ENODEV;
maxfreq = 30000 * gx_freq_mult[getCx86(CX86_DIR1) & 0x0f];
stock_freq = maxfreq;
- curfreq = gx_get_cpuspeed(0);
pr_debug("cpu max frequency is %d.\n", maxfreq);
- pr_debug("cpu current frequency is %dkHz.\n", curfreq);
/* setup basic struct for cpufreq API */
policy->cpu = 0;
else
policy->min = maxfreq / POLICY_MIN_DIV;
policy->max = maxfreq;
- policy->cur = curfreq;
policy->cpuinfo.min_freq = maxfreq / max_duration;
policy->cpuinfo.max_freq = maxfreq;
policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
struct device_node *np;
int ret;
- if (!of_machine_is_compatible("calxeda,highbank"))
+ if ((!of_machine_is_compatible("calxeda,highbank")) &&
+ (!of_machine_is_compatible("calxeda,ecx-2000")))
return -ENODEV;
cpu_dev = get_cpu_device(0);
static int
acpi_cpufreq_target (
struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
+ unsigned int index)
{
- struct cpufreq_acpi_io *data = acpi_io_data[policy->cpu];
- unsigned int next_state = 0;
- unsigned int result = 0;
-
- pr_debug("acpi_cpufreq_setpolicy\n");
-
- result = cpufreq_frequency_table_target(policy,
- data->freq_table, target_freq, relation, &next_state);
- if (result)
- return (result);
-
- result = processor_set_freq(data, policy, next_state);
-
- return (result);
+ return processor_set_freq(acpi_io_data[policy->cpu], policy, index);
}
-
-static int
-acpi_cpufreq_verify (
- struct cpufreq_policy *policy)
-{
- unsigned int result = 0;
- struct cpufreq_acpi_io *data = acpi_io_data[policy->cpu];
-
- pr_debug("acpi_cpufreq_verify\n");
-
- result = cpufreq_frequency_table_verify(policy,
- data->freq_table);
-
- return (result);
-}
-
-
static int
acpi_cpufreq_cpu_init (
struct cpufreq_policy *policy)
data->acpi_data.states[i].transition_latency * 1000;
}
}
- policy->cur = processor_get_freq(data, policy->cpu);
/* table init */
for (i = 0; i <= data->acpi_data.state_count; i++)
}
}
- result = cpufreq_frequency_table_cpuinfo(policy, data->freq_table);
+ result = cpufreq_table_validate_and_show(policy, data->freq_table);
if (result) {
goto err_freqfree;
}
(u32) data->acpi_data.states[i].status,
(u32) data->acpi_data.states[i].control);
- cpufreq_frequency_table_get_attr(data->freq_table, policy->cpu);
-
/* the first call to ->target() should result in us actually
* writing something to the appropriate registers. */
data->resume = 1;
}
-static struct freq_attr* acpi_cpufreq_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
-
static struct cpufreq_driver acpi_cpufreq_driver = {
- .verify = acpi_cpufreq_verify,
- .target = acpi_cpufreq_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = acpi_cpufreq_target,
.get = acpi_cpufreq_get,
.init = acpi_cpufreq_cpu_init,
.exit = acpi_cpufreq_cpu_exit,
.name = "acpi-cpufreq",
- .attr = acpi_cpufreq_attr,
+ .attr = cpufreq_generic_attr,
};
#include <linux/err.h>
#include <linux/module.h>
#include <linux/of.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
#include <linux/platform_device.h>
#include <linux/regulator/consumer.h>
static struct cpufreq_frequency_table *freq_table;
static unsigned int transition_latency;
-static int imx6q_verify_speed(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, freq_table);
-}
-
static unsigned int imx6q_get_speed(unsigned int cpu)
{
return clk_get_rate(arm_clk) / 1000;
}
-static int imx6q_set_target(struct cpufreq_policy *policy,
- unsigned int target_freq, unsigned int relation)
+static int imx6q_set_target(struct cpufreq_policy *policy, unsigned int index)
{
struct cpufreq_freqs freqs;
- struct opp *opp;
+ struct dev_pm_opp *opp;
unsigned long freq_hz, volt, volt_old;
- unsigned int index;
int ret;
- ret = cpufreq_frequency_table_target(policy, freq_table, target_freq,
- relation, &index);
- if (ret) {
- dev_err(cpu_dev, "failed to match target frequency %d: %d\n",
- target_freq, ret);
- return ret;
- }
-
freqs.new = freq_table[index].frequency;
freq_hz = freqs.new * 1000;
freqs.old = clk_get_rate(arm_clk) / 1000;
- if (freqs.old == freqs.new)
- return 0;
-
rcu_read_lock();
- opp = opp_find_freq_ceil(cpu_dev, &freq_hz);
+ opp = dev_pm_opp_find_freq_ceil(cpu_dev, &freq_hz);
if (IS_ERR(opp)) {
rcu_read_unlock();
dev_err(cpu_dev, "failed to find OPP for %ld\n", freq_hz);
return PTR_ERR(opp);
}
- volt = opp_get_voltage(opp);
+ volt = dev_pm_opp_get_voltage(opp);
rcu_read_unlock();
volt_old = regulator_get_voltage(arm_reg);
static int imx6q_cpufreq_init(struct cpufreq_policy *policy)
{
- int ret;
-
- ret = cpufreq_frequency_table_cpuinfo(policy, freq_table);
- if (ret) {
- dev_err(cpu_dev, "invalid frequency table: %d\n", ret);
- return ret;
- }
-
- policy->cpuinfo.transition_latency = transition_latency;
- policy->cur = clk_get_rate(arm_clk) / 1000;
- cpumask_setall(policy->cpus);
- cpufreq_frequency_table_get_attr(freq_table, policy->cpu);
-
- return 0;
-}
-
-static int imx6q_cpufreq_exit(struct cpufreq_policy *policy)
-{
- cpufreq_frequency_table_put_attr(policy->cpu);
- return 0;
+ return cpufreq_generic_init(policy, freq_table, transition_latency);
}
-static struct freq_attr *imx6q_cpufreq_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
static struct cpufreq_driver imx6q_cpufreq_driver = {
- .verify = imx6q_verify_speed,
- .target = imx6q_set_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = imx6q_set_target,
.get = imx6q_get_speed,
.init = imx6q_cpufreq_init,
- .exit = imx6q_cpufreq_exit,
+ .exit = cpufreq_generic_exit,
.name = "imx6q-cpufreq",
- .attr = imx6q_cpufreq_attr,
+ .attr = cpufreq_generic_attr,
};
static int imx6q_cpufreq_probe(struct platform_device *pdev)
{
struct device_node *np;
- struct opp *opp;
+ struct dev_pm_opp *opp;
unsigned long min_volt, max_volt;
int num, ret;
}
/* We expect an OPP table supplied by platform */
- num = opp_get_opp_count(cpu_dev);
+ num = dev_pm_opp_get_opp_count(cpu_dev);
if (num < 0) {
ret = num;
dev_err(cpu_dev, "no OPP table is found: %d\n", ret);
goto put_node;
}
- ret = opp_init_cpufreq_table(cpu_dev, &freq_table);
+ ret = dev_pm_opp_init_cpufreq_table(cpu_dev, &freq_table);
if (ret) {
dev_err(cpu_dev, "failed to init cpufreq table: %d\n", ret);
goto put_node;
* same order.
*/
rcu_read_lock();
- opp = opp_find_freq_exact(cpu_dev,
+ opp = dev_pm_opp_find_freq_exact(cpu_dev,
freq_table[0].frequency * 1000, true);
- min_volt = opp_get_voltage(opp);
- opp = opp_find_freq_exact(cpu_dev,
+ min_volt = dev_pm_opp_get_voltage(opp);
+ opp = dev_pm_opp_find_freq_exact(cpu_dev,
freq_table[--num].frequency * 1000, true);
- max_volt = opp_get_voltage(opp);
+ max_volt = dev_pm_opp_get_voltage(opp);
rcu_read_unlock();
ret = regulator_set_voltage_time(arm_reg, min_volt, max_volt);
if (ret > 0)
return 0;
free_freq_table:
- opp_free_cpufreq_table(cpu_dev, &freq_table);
+ dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table);
put_node:
of_node_put(np);
return ret;
static int imx6q_cpufreq_remove(struct platform_device *pdev)
{
cpufreq_unregister_driver(&imx6q_cpufreq_driver);
- opp_free_cpufreq_table(cpu_dev, &freq_table);
+ dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table);
return 0;
}
{
struct icst_vco vco;
- cpufreq_verify_within_limits(policy,
- policy->cpuinfo.min_freq,
- policy->cpuinfo.max_freq);
+ cpufreq_verify_within_cpu_limits(policy);
vco = icst_hz_to_vco(&cclk_params, policy->max * 1000);
policy->max = icst_hz(&cclk_params, vco) / 1000;
vco = icst_hz_to_vco(&cclk_params, policy->min * 1000);
policy->min = icst_hz(&cclk_params, vco) / 1000;
- cpufreq_verify_within_limits(policy,
- policy->cpuinfo.min_freq,
- policy->cpuinfo.max_freq);
-
+ cpufreq_verify_within_cpu_limits(policy);
return 0;
}
{
/* set default policy and cpuinfo */
- policy->cpuinfo.max_freq = 160000;
- policy->cpuinfo.min_freq = 12000;
+ policy->max = policy->cpuinfo.max_freq = 160000;
+ policy->min = policy->cpuinfo.min_freq = 12000;
policy->cpuinfo.transition_latency = 1000000; /* 1 ms, assumed */
- policy->cur = policy->min = policy->max = integrator_get(policy->cpu);
return 0;
}
#define SAMPLE_COUNT 3
+#define BYT_RATIOS 0x66a
+
#define FRAC_BITS 8
#define int_tofp(X) ((int64_t)(X) << FRAC_BITS)
#define fp_toint(X) ((X) >> FRAC_BITS)
}
struct sample {
- int core_pct_busy;
+ int32_t core_pct_busy;
u64 aperf;
u64 mperf;
int freq;
int32_t i_gain;
int32_t d_gain;
int deadband;
- int last_err;
+ int32_t last_err;
};
struct cpudata {
struct timer_list timer;
- struct pstate_adjust_policy *pstate_policy;
struct pstate_data pstate;
struct _pid pid;
int i_gain_pct;
};
-static struct pstate_adjust_policy default_policy = {
- .sample_rate_ms = 10,
- .deadband = 0,
- .setpoint = 97,
- .p_gain_pct = 20,
- .d_gain_pct = 0,
- .i_gain_pct = 0,
+struct pstate_funcs {
+ int (*get_max)(void);
+ int (*get_min)(void);
+ int (*get_turbo)(void);
+ void (*set)(int pstate);
+};
+
+struct cpu_defaults {
+ struct pstate_adjust_policy pid_policy;
+ struct pstate_funcs funcs;
};
+static struct pstate_adjust_policy pid_params;
+static struct pstate_funcs pstate_funcs;
+
struct perf_limits {
int no_turbo;
int max_perf_pct;
pid->d_gain = div_fp(int_tofp(percent), int_tofp(100));
}
-static signed int pid_calc(struct _pid *pid, int busy)
+static signed int pid_calc(struct _pid *pid, int32_t busy)
{
- signed int err, result;
+ signed int result;
int32_t pterm, dterm, fp_error;
int32_t integral_limit;
- err = pid->setpoint - busy;
- fp_error = int_tofp(err);
+ fp_error = int_tofp(pid->setpoint) - busy;
- if (abs(err) <= pid->deadband)
+ if (abs(fp_error) <= int_tofp(pid->deadband))
return 0;
pterm = mul_fp(pid->p_gain, fp_error);
if (pid->integral < -integral_limit)
pid->integral = -integral_limit;
- dterm = mul_fp(pid->d_gain, (err - pid->last_err));
- pid->last_err = err;
+ dterm = mul_fp(pid->d_gain, fp_error - pid->last_err);
+ pid->last_err = fp_error;
result = pterm + mul_fp(pid->integral, pid->i_gain) + dterm;
static inline void intel_pstate_busy_pid_reset(struct cpudata *cpu)
{
- pid_p_gain_set(&cpu->pid, cpu->pstate_policy->p_gain_pct);
- pid_d_gain_set(&cpu->pid, cpu->pstate_policy->d_gain_pct);
- pid_i_gain_set(&cpu->pid, cpu->pstate_policy->i_gain_pct);
+ pid_p_gain_set(&cpu->pid, pid_params.p_gain_pct);
+ pid_d_gain_set(&cpu->pid, pid_params.d_gain_pct);
+ pid_i_gain_set(&cpu->pid, pid_params.i_gain_pct);
pid_reset(&cpu->pid,
- cpu->pstate_policy->setpoint,
+ pid_params.setpoint,
100,
- cpu->pstate_policy->deadband,
+ pid_params.deadband,
0);
}
};
static struct pid_param pid_files[] = {
- {"sample_rate_ms", &default_policy.sample_rate_ms},
- {"d_gain_pct", &default_policy.d_gain_pct},
- {"i_gain_pct", &default_policy.i_gain_pct},
- {"deadband", &default_policy.deadband},
- {"setpoint", &default_policy.setpoint},
- {"p_gain_pct", &default_policy.p_gain_pct},
+ {"sample_rate_ms", &pid_params.sample_rate_ms},
+ {"d_gain_pct", &pid_params.d_gain_pct},
+ {"i_gain_pct", &pid_params.i_gain_pct},
+ {"deadband", &pid_params.deadband},
+ {"setpoint", &pid_params.setpoint},
+ {"p_gain_pct", &pid_params.p_gain_pct},
{NULL, NULL}
};
}
/************************** sysfs end ************************/
+static int byt_get_min_pstate(void)
+{
+ u64 value;
+ rdmsrl(BYT_RATIOS, value);
+ return value & 0xFF;
+}
-static int intel_pstate_min_pstate(void)
+static int byt_get_max_pstate(void)
+{
+ u64 value;
+ rdmsrl(BYT_RATIOS, value);
+ return (value >> 16) & 0xFF;
+}
+
+static int core_get_min_pstate(void)
{
u64 value;
rdmsrl(MSR_PLATFORM_INFO, value);
return (value >> 40) & 0xFF;
}
-static int intel_pstate_max_pstate(void)
+static int core_get_max_pstate(void)
{
u64 value;
rdmsrl(MSR_PLATFORM_INFO, value);
return (value >> 8) & 0xFF;
}
-static int intel_pstate_turbo_pstate(void)
+static int core_get_turbo_pstate(void)
{
u64 value;
int nont, ret;
rdmsrl(MSR_NHM_TURBO_RATIO_LIMIT, value);
- nont = intel_pstate_max_pstate();
+ nont = core_get_max_pstate();
ret = ((value) & 255);
if (ret <= nont)
ret = nont;
return ret;
}
+static void core_set_pstate(int pstate)
+{
+ u64 val;
+
+ val = pstate << 8;
+ if (limits.no_turbo)
+ val |= (u64)1 << 32;
+
+ wrmsrl(MSR_IA32_PERF_CTL, val);
+}
+
+static struct cpu_defaults core_params = {
+ .pid_policy = {
+ .sample_rate_ms = 10,
+ .deadband = 0,
+ .setpoint = 97,
+ .p_gain_pct = 20,
+ .d_gain_pct = 0,
+ .i_gain_pct = 0,
+ },
+ .funcs = {
+ .get_max = core_get_max_pstate,
+ .get_min = core_get_min_pstate,
+ .get_turbo = core_get_turbo_pstate,
+ .set = core_set_pstate,
+ },
+};
+
+static struct cpu_defaults byt_params = {
+ .pid_policy = {
+ .sample_rate_ms = 10,
+ .deadband = 0,
+ .setpoint = 97,
+ .p_gain_pct = 14,
+ .d_gain_pct = 0,
+ .i_gain_pct = 4,
+ },
+ .funcs = {
+ .get_max = byt_get_max_pstate,
+ .get_min = byt_get_min_pstate,
+ .get_turbo = byt_get_max_pstate,
+ .set = core_set_pstate,
+ },
+};
+
+
static void intel_pstate_get_min_max(struct cpudata *cpu, int *min, int *max)
{
int max_perf = cpu->pstate.turbo_pstate;
+ int max_perf_adj;
int min_perf;
if (limits.no_turbo)
max_perf = cpu->pstate.max_pstate;
- max_perf = fp_toint(mul_fp(int_tofp(max_perf), limits.max_perf));
- *max = clamp_t(int, max_perf,
+ max_perf_adj = fp_toint(mul_fp(int_tofp(max_perf), limits.max_perf));
+ *max = clamp_t(int, max_perf_adj,
cpu->pstate.min_pstate, cpu->pstate.turbo_pstate);
min_perf = fp_toint(mul_fp(int_tofp(max_perf), limits.min_perf));
trace_cpu_frequency(pstate * 100000, cpu->cpu);
cpu->pstate.current_pstate = pstate;
- wrmsrl(MSR_IA32_PERF_CTL, pstate << 8);
+ pstate_funcs.set(pstate);
}
static inline void intel_pstate_pstate_increase(struct cpudata *cpu, int steps)
{
sprintf(cpu->name, "Intel 2nd generation core");
- cpu->pstate.min_pstate = intel_pstate_min_pstate();
- cpu->pstate.max_pstate = intel_pstate_max_pstate();
- cpu->pstate.turbo_pstate = intel_pstate_turbo_pstate();
+ cpu->pstate.min_pstate = pstate_funcs.get_min();
+ cpu->pstate.max_pstate = pstate_funcs.get_max();
+ cpu->pstate.turbo_pstate = pstate_funcs.get_turbo();
/*
* goto max pstate so we don't slow up boot if we are built-in if we are
struct sample *sample)
{
u64 core_pct;
- core_pct = div64_u64(sample->aperf * 100, sample->mperf);
- sample->freq = cpu->pstate.max_pstate * core_pct * 1000;
+ core_pct = div64_u64(int_tofp(sample->aperf * 100),
+ sample->mperf);
+ sample->freq = fp_toint(cpu->pstate.max_pstate * core_pct * 1000);
sample->core_pct_busy = core_pct;
}
{
int sample_time, delay;
- sample_time = cpu->pstate_policy->sample_rate_ms;
+ sample_time = pid_params.sample_rate_ms;
delay = msecs_to_jiffies(sample_time);
mod_timer_pinned(&cpu->timer, jiffies + delay);
}
-static inline int intel_pstate_get_scaled_busy(struct cpudata *cpu)
+static inline int32_t intel_pstate_get_scaled_busy(struct cpudata *cpu)
{
- int32_t busy_scaled;
int32_t core_busy, max_pstate, current_pstate;
- core_busy = int_tofp(cpu->samples[cpu->sample_ptr].core_pct_busy);
+ core_busy = cpu->samples[cpu->sample_ptr].core_pct_busy;
max_pstate = int_tofp(cpu->pstate.max_pstate);
current_pstate = int_tofp(cpu->pstate.current_pstate);
- busy_scaled = mul_fp(core_busy, div_fp(max_pstate, current_pstate));
-
- return fp_toint(busy_scaled);
+ return mul_fp(core_busy, div_fp(max_pstate, current_pstate));
}
static inline void intel_pstate_adjust_busy_pstate(struct cpudata *cpu)
{
- int busy_scaled;
+ int32_t busy_scaled;
struct _pid *pid;
signed int ctl = 0;
int steps;
{ X86_VENDOR_INTEL, 6, model, X86_FEATURE_ANY, (unsigned long)&policy }
static const struct x86_cpu_id intel_pstate_cpu_ids[] = {
- ICPU(0x2a, default_policy),
- ICPU(0x2d, default_policy),
- ICPU(0x3a, default_policy),
- ICPU(0x3c, default_policy),
- ICPU(0x3e, default_policy),
- ICPU(0x3f, default_policy),
- ICPU(0x45, default_policy),
- ICPU(0x46, default_policy),
+ ICPU(0x2a, core_params),
+ ICPU(0x2d, core_params),
+ ICPU(0x37, byt_params),
+ ICPU(0x3a, core_params),
+ ICPU(0x3c, core_params),
+ ICPU(0x3e, core_params),
+ ICPU(0x3f, core_params),
+ ICPU(0x45, core_params),
+ ICPU(0x46, core_params),
{}
};
MODULE_DEVICE_TABLE(x86cpu, intel_pstate_cpu_ids);
intel_pstate_get_cpu_pstates(cpu);
cpu->cpu = cpunum;
- cpu->pstate_policy =
- (struct pstate_adjust_policy *)id->driver_data;
+
init_timer_deferrable(&cpu->timer);
cpu->timer.function = intel_pstate_timer_func;
cpu->timer.data =
static int intel_pstate_verify_policy(struct cpufreq_policy *policy)
{
- cpufreq_verify_within_limits(policy,
- policy->cpuinfo.min_freq,
- policy->cpuinfo.max_freq);
+ cpufreq_verify_within_cpu_limits(policy);
if ((policy->policy != CPUFREQ_POLICY_POWERSAVE) &&
(policy->policy != CPUFREQ_POLICY_PERFORMANCE))
static int intel_pstate_cpu_init(struct cpufreq_policy *policy)
{
- int rc, min_pstate, max_pstate;
struct cpudata *cpu;
+ int rc;
rc = intel_pstate_init_cpu(policy->cpu);
if (rc)
else
policy->policy = CPUFREQ_POLICY_POWERSAVE;
- intel_pstate_get_min_max(cpu, &min_pstate, &max_pstate);
- policy->min = min_pstate * 100000;
- policy->max = max_pstate * 100000;
+ policy->min = cpu->pstate.min_pstate * 100000;
+ policy->max = cpu->pstate.turbo_pstate * 100000;
/* cpuinfo and default policy values */
policy->cpuinfo.min_freq = cpu->pstate.min_pstate * 100000;
rdmsrl(MSR_IA32_APERF, aperf);
rdmsrl(MSR_IA32_MPERF, mperf);
- if (!intel_pstate_min_pstate() ||
- !intel_pstate_max_pstate() ||
- !intel_pstate_turbo_pstate())
+ if (!pstate_funcs.get_max() ||
+ !pstate_funcs.get_min() ||
+ !pstate_funcs.get_turbo())
return -ENODEV;
rdmsrl(MSR_IA32_APERF, tmp);
return 0;
}
+
+void copy_pid_params(struct pstate_adjust_policy *policy)
+{
+ pid_params.sample_rate_ms = policy->sample_rate_ms;
+ pid_params.p_gain_pct = policy->p_gain_pct;
+ pid_params.i_gain_pct = policy->i_gain_pct;
+ pid_params.d_gain_pct = policy->d_gain_pct;
+ pid_params.deadband = policy->deadband;
+ pid_params.setpoint = policy->setpoint;
+}
+
+void copy_cpu_funcs(struct pstate_funcs *funcs)
+{
+ pstate_funcs.get_max = funcs->get_max;
+ pstate_funcs.get_min = funcs->get_min;
+ pstate_funcs.get_turbo = funcs->get_turbo;
+ pstate_funcs.set = funcs->set;
+}
+
static int __init intel_pstate_init(void)
{
int cpu, rc = 0;
const struct x86_cpu_id *id;
+ struct cpu_defaults *cpu_info;
if (no_load)
return -ENODEV;
if (!id)
return -ENODEV;
+ cpu_info = (struct cpu_defaults *)id->driver_data;
+
+ copy_pid_params(&cpu_info->pid_policy);
+ copy_cpu_funcs(&cpu_info->funcs);
+
if (intel_pstate_msrs_not_valid())
return -ENODEV;
return kirkwood_freq_table[0].frequency;
}
-static void kirkwood_cpufreq_set_cpu_state(struct cpufreq_policy *policy,
- unsigned int index)
+static int kirkwood_cpufreq_target(struct cpufreq_policy *policy,
+ unsigned int index)
{
struct cpufreq_freqs freqs;
unsigned int state = kirkwood_freq_table[index].driver_data;
local_irq_enable();
}
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-};
-
-static int kirkwood_cpufreq_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, kirkwood_freq_table);
-}
-
-static int kirkwood_cpufreq_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
-{
- unsigned int index = 0;
-
- if (cpufreq_frequency_table_target(policy, kirkwood_freq_table,
- target_freq, relation, &index))
- return -EINVAL;
-
- kirkwood_cpufreq_set_cpu_state(policy, index);
return 0;
}
/* Module init and exit code */
static int kirkwood_cpufreq_cpu_init(struct cpufreq_policy *policy)
{
- int result;
-
- /* cpuinfo and default policy values */
- policy->cpuinfo.transition_latency = 5000; /* 5uS */
- policy->cur = kirkwood_cpufreq_get_cpu_frequency(0);
-
- result = cpufreq_frequency_table_cpuinfo(policy, kirkwood_freq_table);
- if (result)
- return result;
-
- cpufreq_frequency_table_get_attr(kirkwood_freq_table, policy->cpu);
-
- return 0;
-}
-
-static int kirkwood_cpufreq_cpu_exit(struct cpufreq_policy *policy)
-{
- cpufreq_frequency_table_put_attr(policy->cpu);
- return 0;
+ return cpufreq_generic_init(policy, kirkwood_freq_table, 5000);
}
-static struct freq_attr *kirkwood_cpufreq_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
static struct cpufreq_driver kirkwood_cpufreq_driver = {
.get = kirkwood_cpufreq_get_cpu_frequency,
- .verify = kirkwood_cpufreq_verify,
- .target = kirkwood_cpufreq_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = kirkwood_cpufreq_target,
.init = kirkwood_cpufreq_cpu_init,
- .exit = kirkwood_cpufreq_cpu_exit,
+ .exit = cpufreq_generic_exit,
.name = "kirkwood-cpufreq",
- .attr = kirkwood_cpufreq_attr,
+ .attr = cpufreq_generic_attr,
};
static int kirkwood_cpufreq_probe(struct platform_device *pdev)
}
-static int longhaul_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, longhaul_table);
-}
-
-
static int longhaul_target(struct cpufreq_policy *policy,
- unsigned int target_freq, unsigned int relation)
+ unsigned int table_index)
{
- unsigned int table_index = 0;
unsigned int i;
unsigned int dir = 0;
u8 vid, current_vid;
- if (cpufreq_frequency_table_target(policy, longhaul_table, target_freq,
- relation, &table_index))
- return -EINVAL;
-
- /* Don't set same frequency again */
- if (longhaul_index == table_index)
- return 0;
-
if (!can_scale_voltage)
longhaul_setstate(policy, table_index);
else {
longhaul_setup_voltagescaling();
policy->cpuinfo.transition_latency = 200000; /* nsec */
- policy->cur = calc_speed(longhaul_get_cpu_mult());
-
- ret = cpufreq_frequency_table_cpuinfo(policy, longhaul_table);
- if (ret)
- return ret;
-
- cpufreq_frequency_table_get_attr(longhaul_table, policy->cpu);
- return 0;
+ return cpufreq_table_validate_and_show(policy, longhaul_table);
}
-static int longhaul_cpu_exit(struct cpufreq_policy *policy)
-{
- cpufreq_frequency_table_put_attr(policy->cpu);
- return 0;
-}
-
-static struct freq_attr *longhaul_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
static struct cpufreq_driver longhaul_driver = {
- .verify = longhaul_verify,
- .target = longhaul_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = longhaul_target,
.get = longhaul_get,
.init = longhaul_cpu_init,
- .exit = longhaul_cpu_exit,
+ .exit = cpufreq_generic_exit,
.name = "longhaul",
- .attr = longhaul_attr,
+ .attr = cpufreq_generic_attr,
};
static const struct x86_cpu_id longhaul_id[] = {
return -EINVAL;
policy->cpu = 0;
- cpufreq_verify_within_limits(policy,
- policy->cpuinfo.min_freq,
- policy->cpuinfo.max_freq);
+ cpufreq_verify_within_cpu_limits(policy);
if ((policy->policy != CPUFREQ_POLICY_POWERSAVE) &&
(policy->policy != CPUFREQ_POLICY_PERFORMANCE))
* Here we notify other drivers of the proposed change and the final change.
*/
static int loongson2_cpufreq_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
+ unsigned int index)
{
unsigned int cpu = policy->cpu;
- unsigned int newstate = 0;
cpumask_t cpus_allowed;
struct cpufreq_freqs freqs;
unsigned int freq;
cpus_allowed = current->cpus_allowed;
set_cpus_allowed_ptr(current, cpumask_of(cpu));
- if (cpufreq_frequency_table_target
- (policy, &loongson2_clockmod_table[0], target_freq, relation,
- &newstate))
- return -EINVAL;
-
freq =
((cpu_clock_freq / 1000) *
- loongson2_clockmod_table[newstate].driver_data) / 8;
- if (freq < policy->min || freq > policy->max)
- return -EINVAL;
+ loongson2_clockmod_table[index].driver_data) / 8;
- pr_debug("cpufreq: requested frequency %u Hz\n", target_freq * 1000);
+ pr_debug("cpufreq: requested frequency %u Hz\n",
+ loongson2_clockmod_table[index].frequency * 1000);
freqs.old = loongson2_cpufreq_get(cpu);
freqs.new = freq;
freqs.flags = 0;
- if (freqs.new == freqs.old)
- return 0;
-
/* notifiers */
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
return ret;
}
- policy->cur = loongson2_cpufreq_get(policy->cpu);
-
- cpufreq_frequency_table_get_attr(&loongson2_clockmod_table[0],
- policy->cpu);
-
- return cpufreq_frequency_table_cpuinfo(policy,
- &loongson2_clockmod_table[0]);
-}
-
-static int loongson2_cpufreq_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy,
- &loongson2_clockmod_table[0]);
+ return cpufreq_generic_init(policy, &loongson2_clockmod_table[0], 0);
}
static int loongson2_cpufreq_exit(struct cpufreq_policy *policy)
{
+ cpufreq_frequency_table_put_attr(policy->cpu);
clk_put(cpuclk);
return 0;
}
-static struct freq_attr *loongson2_table_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
static struct cpufreq_driver loongson2_cpufreq_driver = {
.name = "loongson2",
.init = loongson2_cpufreq_cpu_init,
- .verify = loongson2_cpufreq_verify,
- .target = loongson2_cpufreq_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = loongson2_cpufreq_target,
.get = loongson2_cpufreq_get,
.exit = loongson2_cpufreq_exit,
- .attr = loongson2_table_attr,
+ .attr = cpufreq_generic_attr,
};
static struct platform_device_id platform_device_ids[] = {
{0, CPUFREQ_TABLE_END},
};
-static struct freq_attr *maple_cpu_freqs_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
/* Power mode data is an array of the 32 bits PCR values to use for
* the various frequencies, retrieved from the device-tree
*/
* Common interface to the cpufreq core
*/
-static int maple_cpufreq_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, maple_cpu_freqs);
-}
-
static int maple_cpufreq_target(struct cpufreq_policy *policy,
- unsigned int target_freq, unsigned int relation)
+ unsigned int index)
{
- unsigned int newstate = 0;
struct cpufreq_freqs freqs;
int rc;
- if (cpufreq_frequency_table_target(policy, maple_cpu_freqs,
- target_freq, relation, &newstate))
- return -EINVAL;
-
- if (maple_pmode_cur == newstate)
- return 0;
-
mutex_lock(&maple_switch_mutex);
freqs.old = maple_cpu_freqs[maple_pmode_cur].frequency;
- freqs.new = maple_cpu_freqs[newstate].frequency;
+ freqs.new = maple_cpu_freqs[index].frequency;
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
- rc = maple_scom_switch_freq(newstate);
+ rc = maple_scom_switch_freq(index);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
mutex_unlock(&maple_switch_mutex);
static int maple_cpufreq_cpu_init(struct cpufreq_policy *policy)
{
- policy->cpuinfo.transition_latency = 12000;
- policy->cur = maple_cpu_freqs[maple_scom_query_freq()].frequency;
- /* secondary CPUs are tied to the primary one by the
- * cpufreq core if in the secondary policy we tell it that
- * it actually must be one policy together with all others. */
- cpumask_setall(policy->cpus);
- cpufreq_frequency_table_get_attr(maple_cpu_freqs, policy->cpu);
-
- return cpufreq_frequency_table_cpuinfo(policy,
- maple_cpu_freqs);
+ return cpufreq_generic_init(policy, maple_cpu_freqs, 12000);
}
-
static struct cpufreq_driver maple_cpufreq_driver = {
.name = "maple",
.flags = CPUFREQ_CONST_LOOPS,
.init = maple_cpufreq_cpu_init,
- .verify = maple_cpufreq_verify,
- .target = maple_cpufreq_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = maple_cpufreq_target,
.get = maple_cpufreq_get_speed,
- .attr = maple_cpu_freqs_attr,
+ .attr = cpufreq_generic_attr,
};
static int __init maple_cpufreq_init(void)
#include <linux/err.h>
#include <linux/clk.h>
#include <linux/io.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
#include <linux/cpu.h>
#include <linux/module.h>
#include <linux/platform_device.h>
static struct device *mpu_dev;
static struct regulator *mpu_reg;
-static int omap_verify_speed(struct cpufreq_policy *policy)
-{
- if (!freq_table)
- return -EINVAL;
- return cpufreq_frequency_table_verify(policy, freq_table);
-}
-
static unsigned int omap_getspeed(unsigned int cpu)
{
unsigned long rate;
return rate;
}
-static int omap_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
+static int omap_target(struct cpufreq_policy *policy, unsigned int index)
{
- unsigned int i;
int r, ret = 0;
struct cpufreq_freqs freqs;
- struct opp *opp;
+ struct dev_pm_opp *opp;
unsigned long freq, volt = 0, volt_old = 0, tol = 0;
- if (!freq_table) {
- dev_err(mpu_dev, "%s: cpu%d: no freq table!\n", __func__,
- policy->cpu);
- return -EINVAL;
- }
-
- ret = cpufreq_frequency_table_target(policy, freq_table, target_freq,
- relation, &i);
- if (ret) {
- dev_dbg(mpu_dev, "%s: cpu%d: no freq match for %d(ret=%d)\n",
- __func__, policy->cpu, target_freq, ret);
- return ret;
- }
- freqs.new = freq_table[i].frequency;
- if (!freqs.new) {
- dev_err(mpu_dev, "%s: cpu%d: no match for freq %d\n", __func__,
- policy->cpu, target_freq);
- return -EINVAL;
- }
-
freqs.old = omap_getspeed(policy->cpu);
-
- if (freqs.old == freqs.new && policy->cur == freqs.new)
- return ret;
+ freqs.new = freq_table[index].frequency;
freq = freqs.new * 1000;
ret = clk_round_rate(mpu_clk, freq);
if (mpu_reg) {
rcu_read_lock();
- opp = opp_find_freq_ceil(mpu_dev, &freq);
+ opp = dev_pm_opp_find_freq_ceil(mpu_dev, &freq);
if (IS_ERR(opp)) {
rcu_read_unlock();
dev_err(mpu_dev, "%s: unable to find MPU OPP for %d\n",
__func__, freqs.new);
return -EINVAL;
}
- volt = opp_get_voltage(opp);
+ volt = dev_pm_opp_get_voltage(opp);
rcu_read_unlock();
tol = volt * OPP_TOLERANCE / 100;
volt_old = regulator_get_voltage(mpu_reg);
static inline void freq_table_free(void)
{
if (atomic_dec_and_test(&freq_table_users))
- opp_free_cpufreq_table(mpu_dev, &freq_table);
+ dev_pm_opp_free_cpufreq_table(mpu_dev, &freq_table);
}
static int omap_cpu_init(struct cpufreq_policy *policy)
{
- int result = 0;
+ int result;
mpu_clk = clk_get(NULL, "cpufreq_ck");
if (IS_ERR(mpu_clk))
return PTR_ERR(mpu_clk);
- if (policy->cpu >= NR_CPUS) {
- result = -EINVAL;
- goto fail_ck;
- }
-
- policy->cur = omap_getspeed(policy->cpu);
-
- if (!freq_table)
- result = opp_init_cpufreq_table(mpu_dev, &freq_table);
-
- if (result) {
- dev_err(mpu_dev, "%s: cpu%d: failed creating freq table[%d]\n",
+ if (!freq_table) {
+ result = dev_pm_opp_init_cpufreq_table(mpu_dev, &freq_table);
+ if (result) {
+ dev_err(mpu_dev,
+ "%s: cpu%d: failed creating freq table[%d]\n",
__func__, policy->cpu, result);
- goto fail_ck;
+ goto fail;
+ }
}
atomic_inc_return(&freq_table_users);
- result = cpufreq_frequency_table_cpuinfo(policy, freq_table);
- if (result)
- goto fail_table;
-
- cpufreq_frequency_table_get_attr(freq_table, policy->cpu);
-
- policy->cur = omap_getspeed(policy->cpu);
-
- /*
- * On OMAP SMP configuartion, both processors share the voltage
- * and clock. So both CPUs needs to be scaled together and hence
- * needs software co-ordination. Use cpufreq affected_cpus
- * interface to handle this scenario. Additional is_smp() check
- * is to keep SMP_ON_UP build working.
- */
- if (is_smp())
- cpumask_setall(policy->cpus);
-
/* FIXME: what's the actual transition time? */
- policy->cpuinfo.transition_latency = 300 * 1000;
-
- return 0;
+ result = cpufreq_generic_init(policy, freq_table, 300 * 1000);
+ if (!result)
+ return 0;
-fail_table:
freq_table_free();
-fail_ck:
+fail:
clk_put(mpu_clk);
return result;
}
static int omap_cpu_exit(struct cpufreq_policy *policy)
{
+ cpufreq_frequency_table_put_attr(policy->cpu);
freq_table_free();
clk_put(mpu_clk);
return 0;
}
-static struct freq_attr *omap_cpufreq_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
static struct cpufreq_driver omap_driver = {
.flags = CPUFREQ_STICKY,
- .verify = omap_verify_speed,
- .target = omap_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = omap_target,
.get = omap_getspeed,
.init = omap_cpu_init,
.exit = omap_cpu_exit,
.name = "omap",
- .attr = omap_cpufreq_attr,
+ .attr = cpufreq_generic_attr,
};
static int omap_cpufreq_probe(struct platform_device *pdev)
};
-static int cpufreq_p4_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
+static int cpufreq_p4_target(struct cpufreq_policy *policy, unsigned int index)
{
- unsigned int newstate = DC_RESV;
struct cpufreq_freqs freqs;
int i;
- if (cpufreq_frequency_table_target(policy, &p4clockmod_table[0],
- target_freq, relation, &newstate))
- return -EINVAL;
-
freqs.old = cpufreq_p4_get(policy->cpu);
- freqs.new = stock_freq * p4clockmod_table[newstate].driver_data / 8;
-
- if (freqs.new == freqs.old)
- return 0;
+ freqs.new = stock_freq * p4clockmod_table[index].driver_data / 8;
/* notifiers */
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
* Developer's Manual, Volume 3
*/
for_each_cpu(i, policy->cpus)
- cpufreq_p4_setdc(i, p4clockmod_table[newstate].driver_data);
+ cpufreq_p4_setdc(i, p4clockmod_table[index].driver_data);
/* notifiers */
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
}
-static int cpufreq_p4_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, &p4clockmod_table[0]);
-}
-
-
static unsigned int cpufreq_p4_get_frequency(struct cpuinfo_x86 *c)
{
if (c->x86 == 0x06) {
else
p4clockmod_table[i].frequency = (stock_freq * i)/8;
}
- cpufreq_frequency_table_get_attr(p4clockmod_table, policy->cpu);
/* cpuinfo and default policy values */
/* the transition latency is set to be 1 higher than the maximum
* transition latency of the ondemand governor */
policy->cpuinfo.transition_latency = 10000001;
- policy->cur = stock_freq;
- return cpufreq_frequency_table_cpuinfo(policy, &p4clockmod_table[0]);
+ return cpufreq_table_validate_and_show(policy, &p4clockmod_table[0]);
}
-static int cpufreq_p4_cpu_exit(struct cpufreq_policy *policy)
-{
- cpufreq_frequency_table_put_attr(policy->cpu);
- return 0;
-}
-
static unsigned int cpufreq_p4_get(unsigned int cpu)
{
u32 l, h;
return stock_freq;
}
-static struct freq_attr *p4clockmod_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
static struct cpufreq_driver p4clockmod_driver = {
- .verify = cpufreq_p4_verify,
- .target = cpufreq_p4_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = cpufreq_p4_target,
.init = cpufreq_p4_cpu_init,
- .exit = cpufreq_p4_cpu_exit,
+ .exit = cpufreq_generic_exit,
.get = cpufreq_p4_get,
.name = "p4-clockmod",
- .attr = p4clockmod_attr,
+ .attr = cpufreq_generic_attr,
};
static const struct x86_cpu_id cpufreq_p4_id[] = {
{0, CPUFREQ_TABLE_END},
};
-static struct freq_attr *pas_cpu_freqs_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
/*
* hardware specific functions
*/
pr_debug("%d: %d\n", i, pas_freqs[i].frequency);
}
- policy->cpuinfo.transition_latency = get_gizmo_latency();
-
cur_astate = get_cur_astate(policy->cpu);
pr_debug("current astate is at %d\n",cur_astate);
policy->cur = pas_freqs[cur_astate].frequency;
- cpumask_copy(policy->cpus, cpu_online_mask);
-
ppc_proc_freq = policy->cur * 1000ul;
- cpufreq_frequency_table_get_attr(pas_freqs, policy->cpu);
-
- /* this ensures that policy->cpuinfo_min and policy->cpuinfo_max
- * are set correctly
- */
- return cpufreq_frequency_table_cpuinfo(policy, pas_freqs);
+ return cpufreq_generic_init(policy, pas_freqs, get_gizmo_latency());
out_unmap_sdcpwr:
iounmap(sdcpwr_mapbase);
return 0;
}
-static int pas_cpufreq_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, pas_freqs);
-}
-
static int pas_cpufreq_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
+ unsigned int pas_astate_new)
{
struct cpufreq_freqs freqs;
- int pas_astate_new;
int i;
- cpufreq_frequency_table_target(policy,
- pas_freqs,
- target_freq,
- relation,
- &pas_astate_new);
-
freqs.old = policy->cur;
freqs.new = pas_freqs[pas_astate_new].frequency;
.flags = CPUFREQ_CONST_LOOPS,
.init = pas_cpufreq_cpu_init,
.exit = pas_cpufreq_cpu_exit,
- .verify = pas_cpufreq_verify,
- .target = pas_cpufreq_target,
- .attr = pas_cpu_freqs_attr,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = pas_cpufreq_target,
+ .attr = cpufreq_generic_attr,
};
/*
static int pcc_cpufreq_verify(struct cpufreq_policy *policy)
{
- cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
- policy->cpuinfo.max_freq);
+ cpufreq_verify_within_cpu_limits(policy);
return 0;
}
struct pcc_memory_resource *mem_resource;
struct pcc_register_resource *reg_resource;
union acpi_object *out_obj, *member;
- acpi_handle handle, osc_handle, pcch_handle;
+ acpi_handle handle, osc_handle;
int ret = 0;
status = acpi_get_handle(NULL, "\\_SB", &handle);
if (ACPI_FAILURE(status))
return -ENODEV;
- status = acpi_get_handle(handle, "PCCH", &pcch_handle);
- if (ACPI_FAILURE(status))
+ if (!acpi_has_method(handle, "PCCH"))
return -ENODEV;
status = acpi_get_handle(handle, "_OSC", &osc_handle);
ioread32(&pcch_hdr->nominal) * 1000;
policy->min = policy->cpuinfo.min_freq =
ioread32(&pcch_hdr->minimum_frequency) * 1000;
- policy->cur = pcc_get_freq(cpu);
-
- if (!policy->cur) {
- pr_debug("init: Unable to get current CPU frequency\n");
- result = -EINVAL;
- goto out;
- }
pr_debug("init: policy->max is %d, policy->min is %d\n",
policy->max, policy->min);
{0, CPUFREQ_TABLE_END},
};
-static struct freq_attr* pmac_cpu_freqs_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
static inline void local_delay(unsigned long ms)
{
if (no_schedule)
return cur_freq;
}
-static int pmac_cpufreq_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, pmac_cpu_freqs);
-}
-
static int pmac_cpufreq_target( struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
+ unsigned int index)
{
- unsigned int newstate = 0;
int rc;
- if (cpufreq_frequency_table_target(policy, pmac_cpu_freqs,
- target_freq, relation, &newstate))
- return -EINVAL;
-
- rc = do_set_cpu_speed(policy, newstate, 1);
+ rc = do_set_cpu_speed(policy, index, 1);
ppc_proc_freq = cur_freq * 1000ul;
return rc;
static int pmac_cpufreq_cpu_init(struct cpufreq_policy *policy)
{
- if (policy->cpu != 0)
- return -ENODEV;
-
- policy->cpuinfo.transition_latency = transition_latency;
- policy->cur = cur_freq;
-
- cpufreq_frequency_table_get_attr(pmac_cpu_freqs, policy->cpu);
- return cpufreq_frequency_table_cpuinfo(policy, pmac_cpu_freqs);
+ return cpufreq_generic_init(policy, pmac_cpu_freqs, transition_latency);
}
static u32 read_gpio(struct device_node *np)
}
static struct cpufreq_driver pmac_cpufreq_driver = {
- .verify = pmac_cpufreq_verify,
- .target = pmac_cpufreq_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = pmac_cpufreq_target,
.get = pmac_cpufreq_get_speed,
.init = pmac_cpufreq_cpu_init,
.suspend = pmac_cpufreq_suspend,
.resume = pmac_cpufreq_resume,
.flags = CPUFREQ_PM_NO_WARN,
- .attr = pmac_cpu_freqs_attr,
+ .attr = cpufreq_generic_attr,
.name = "powermac",
};
{0, CPUFREQ_TABLE_END},
};
-static struct freq_attr* g5_cpu_freqs_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
/* Power mode data is an array of the 32 bits PCR values to use for
* the various frequencies, retrieved from the device-tree
*/
pmf_call_one(pfunc_vdnap0_complete, &args);
if (done)
break;
- msleep(1);
+ usleep_range(1000, 1000);
}
if (done == 0)
printk(KERN_WARNING "cpufreq: Timeout in clock slewing !\n");
if (pfunc_cpu1_volt_low)
pmf_call_one(pfunc_cpu1_volt_low, NULL);
}
- msleep(10); /* should be faster , to fix */
+ usleep_range(10000, 10000); /* should be faster , to fix */
}
/*
pmf_call_one(pfunc_slewing_done, &args);
if (done)
break;
- msleep(1);
+ usleep_range(500, 500);
}
if (done == 0)
printk(KERN_WARNING "cpufreq: Timeout in clock slewing !\n");
* Common interface to the cpufreq core
*/
-static int g5_cpufreq_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, g5_cpu_freqs);
-}
-
-static int g5_cpufreq_target(struct cpufreq_policy *policy,
- unsigned int target_freq, unsigned int relation)
+static int g5_cpufreq_target(struct cpufreq_policy *policy, unsigned int index)
{
- unsigned int newstate = 0;
struct cpufreq_freqs freqs;
int rc;
- if (cpufreq_frequency_table_target(policy, g5_cpu_freqs,
- target_freq, relation, &newstate))
- return -EINVAL;
-
- if (g5_pmode_cur == newstate)
- return 0;
-
mutex_lock(&g5_switch_mutex);
freqs.old = g5_cpu_freqs[g5_pmode_cur].frequency;
- freqs.new = g5_cpu_freqs[newstate].frequency;
+ freqs.new = g5_cpu_freqs[index].frequency;
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
- rc = g5_switch_freq(newstate);
+ rc = g5_switch_freq(index);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
mutex_unlock(&g5_switch_mutex);
static int g5_cpufreq_cpu_init(struct cpufreq_policy *policy)
{
- policy->cpuinfo.transition_latency = transition_latency;
- policy->cur = g5_cpu_freqs[g5_query_freq()].frequency;
- /* secondary CPUs are tied to the primary one by the
- * cpufreq core if in the secondary policy we tell it that
- * it actually must be one policy together with all others. */
- cpumask_copy(policy->cpus, cpu_online_mask);
- cpufreq_frequency_table_get_attr(g5_cpu_freqs, policy->cpu);
-
- return cpufreq_frequency_table_cpuinfo(policy,
- g5_cpu_freqs);
+ return cpufreq_generic_init(policy, g5_cpu_freqs, transition_latency);
}
-
static struct cpufreq_driver g5_cpufreq_driver = {
.name = "powermac",
.flags = CPUFREQ_CONST_LOOPS,
.init = g5_cpufreq_cpu_init,
- .verify = g5_cpufreq_verify,
- .target = g5_cpufreq_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = g5_cpufreq_target,
.get = g5_cpufreq_get_speed,
- .attr = g5_cpu_freqs_attr,
+ .attr = cpufreq_generic_attr,
};
/* Check supported platforms */
if (of_machine_is_compatible("PowerMac8,1") ||
of_machine_is_compatible("PowerMac8,2") ||
- of_machine_is_compatible("PowerMac9,1"))
+ of_machine_is_compatible("PowerMac9,1") ||
+ of_machine_is_compatible("PowerMac12,1"))
use_volts_smu = 1;
else if (of_machine_is_compatible("PowerMac11,2"))
use_volts_vdnap = 1;
g5_cpu_freqs[0].frequency = max_freq;
g5_cpu_freqs[1].frequency = min_freq;
+ /* Based on a measurement on Xserve G5, rounded up. */
+ transition_latency = 10 * NSEC_PER_MSEC;
+
/* Set callbacks */
- transition_latency = CPUFREQ_ETERNAL;
g5_switch_volt = g5_pfunc_switch_volt;
g5_switch_freq = g5_pfunc_switch_freq;
g5_query_freq = g5_pfunc_query_freq;
/**
- * powernow_k6_set_state - set the PowerNow! multiplier
+ * powernow_k6_target - set the PowerNow! multiplier
* @best_i: clock_ratio[best_i] is the target multiplier
*
* Tries to change the PowerNow! multiplier
*/
-static void powernow_k6_set_state(struct cpufreq_policy *policy,
+static int powernow_k6_target(struct cpufreq_policy *policy,
unsigned int best_i)
{
unsigned long outvalue = 0, invalue = 0;
if (clock_ratio[best_i].driver_data > max_multiplier) {
printk(KERN_ERR PFX "invalid target frequency\n");
- return;
+ return -EINVAL;
}
freqs.old = busfreq * powernow_k6_get_cpu_multiplier();
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
- return;
-}
-
-
-/**
- * powernow_k6_verify - verifies a new CPUfreq policy
- * @policy: new policy
- *
- * Policy must be within lowest and highest possible CPU Frequency,
- * and at least one possible state must be within min and max.
- */
-static int powernow_k6_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, &clock_ratio[0]);
-}
-
-
-/**
- * powernow_k6_setpolicy - sets a new CPUFreq policy
- * @policy: new policy
- * @target_freq: the target frequency
- * @relation: how that frequency relates to achieved frequency
- * (CPUFREQ_RELATION_L or CPUFREQ_RELATION_H)
- *
- * sets a new CPUFreq policy
- */
-static int powernow_k6_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
-{
- unsigned int newstate = 0;
-
- if (cpufreq_frequency_table_target(policy, &clock_ratio[0],
- target_freq, relation, &newstate))
- return -EINVAL;
-
- powernow_k6_set_state(policy, newstate);
-
return 0;
}
static int powernow_k6_cpu_init(struct cpufreq_policy *policy)
{
unsigned int i, f;
- int result;
if (policy->cpu != 0)
return -ENODEV;
/* cpuinfo and default policy values */
policy->cpuinfo.transition_latency = 200000;
- policy->cur = busfreq * max_multiplier;
-
- result = cpufreq_frequency_table_cpuinfo(policy, clock_ratio);
- if (result)
- return result;
-
- cpufreq_frequency_table_get_attr(clock_ratio, policy->cpu);
- return 0;
+ return cpufreq_table_validate_and_show(policy, clock_ratio);
}
unsigned int i;
for (i = 0; i < 8; i++) {
if (i == max_multiplier)
- powernow_k6_set_state(policy, i);
+ powernow_k6_target(policy, i);
}
cpufreq_frequency_table_put_attr(policy->cpu);
return 0;
return ret;
}
-static struct freq_attr *powernow_k6_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
static struct cpufreq_driver powernow_k6_driver = {
- .verify = powernow_k6_verify,
- .target = powernow_k6_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = powernow_k6_target,
.init = powernow_k6_cpu_init,
.exit = powernow_k6_cpu_exit,
.get = powernow_k6_get,
.name = "powernow-k6",
- .attr = powernow_k6_attr,
+ .attr = cpufreq_generic_attr,
};
static const struct x86_cpu_id powernow_k6_ids[] = {
}
-static void change_speed(struct cpufreq_policy *policy, unsigned int index)
+static int powernow_target(struct cpufreq_policy *policy, unsigned int index)
{
u8 fid, vid;
struct cpufreq_freqs freqs;
local_irq_enable();
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
+
+ return 0;
}
}
-static int powernow_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
-{
- unsigned int newstate;
-
- if (cpufreq_frequency_table_target(policy, powernow_table, target_freq,
- relation, &newstate))
- return -EINVAL;
-
- change_speed(policy, newstate);
-
- return 0;
-}
-
-
-static int powernow_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, powernow_table);
-}
-
/*
* We use the fact that the bus frequency is somehow
* a multiple of 100000/3 khz, then we compute sgtc according
policy->cpuinfo.transition_latency =
cpufreq_scale(2000000UL, fsb, latency);
- policy->cur = powernow_get(0);
-
- cpufreq_frequency_table_get_attr(powernow_table, policy->cpu);
-
- return cpufreq_frequency_table_cpuinfo(policy, powernow_table);
+ return cpufreq_table_validate_and_show(policy, powernow_table);
}
static int powernow_cpu_exit(struct cpufreq_policy *policy)
return 0;
}
-static struct freq_attr *powernow_table_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
static struct cpufreq_driver powernow_driver = {
- .verify = powernow_verify,
- .target = powernow_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = powernow_target,
.get = powernow_get,
#ifdef CONFIG_X86_POWERNOW_K7_ACPI
.bios_limit = acpi_processor_get_bios_limit,
.init = powernow_cpu_init,
.exit = powernow_cpu_exit,
.name = "powernow-k7",
- .attr = powernow_table_attr,
+ .attr = cpufreq_generic_attr,
};
static int __init powernow_init(void)
struct powernowk8_target_arg {
struct cpufreq_policy *pol;
- unsigned targfreq;
- unsigned relation;
+ unsigned newstate;
};
static long powernowk8_target_fn(void *arg)
{
struct powernowk8_target_arg *pta = arg;
struct cpufreq_policy *pol = pta->pol;
- unsigned targfreq = pta->targfreq;
- unsigned relation = pta->relation;
+ unsigned newstate = pta->newstate;
struct powernow_k8_data *data = per_cpu(powernow_data, pol->cpu);
u32 checkfid;
u32 checkvid;
- unsigned int newstate;
int ret;
if (!data)
return -EIO;
}
- pr_debug("targ: cpu %d, %d kHz, min %d, max %d, relation %d\n",
- pol->cpu, targfreq, pol->min, pol->max, relation);
+ pr_debug("targ: cpu %d, %d kHz, min %d, max %d\n",
+ pol->cpu, data->powernow_table[newstate].frequency, pol->min,
+ pol->max);
if (query_current_values_with_pending_wait(data))
return -EIO;
checkvid, data->currvid);
}
- if (cpufreq_frequency_table_target(pol, data->powernow_table,
- targfreq, relation, &newstate))
- return -EIO;
-
mutex_lock(&fidvid_mutex);
powernow_k8_acpi_pst_values(data, newstate);
}
/* Driver entry point to switch to the target frequency */
-static int powernowk8_target(struct cpufreq_policy *pol,
- unsigned targfreq, unsigned relation)
+static int powernowk8_target(struct cpufreq_policy *pol, unsigned index)
{
- struct powernowk8_target_arg pta = { .pol = pol, .targfreq = targfreq,
- .relation = relation };
+ struct powernowk8_target_arg pta = { .pol = pol, .newstate = index };
return work_on_cpu(pol->cpu, powernowk8_target_fn, &pta);
}
-/* Driver entry point to verify the policy and range of frequencies */
-static int powernowk8_verify(struct cpufreq_policy *pol)
-{
- struct powernow_k8_data *data = per_cpu(powernow_data, pol->cpu);
-
- if (!data)
- return -EINVAL;
-
- return cpufreq_frequency_table_verify(pol, data->powernow_table);
-}
-
struct init_on_cpu {
struct powernow_k8_data *data;
int rc;
cpumask_copy(pol->cpus, cpu_core_mask(pol->cpu));
data->available_cores = pol->cpus;
- pol->cur = find_khz_freq_from_fid(data->currfid);
- pr_debug("policy current frequency %d kHz\n", pol->cur);
-
/* min/max the cpu is capable of */
- if (cpufreq_frequency_table_cpuinfo(pol, data->powernow_table)) {
+ if (cpufreq_table_validate_and_show(pol, data->powernow_table)) {
printk(KERN_ERR FW_BUG PFX "invalid powernow_table\n");
powernow_k8_cpu_exit_acpi(data);
kfree(data->powernow_table);
return -EINVAL;
}
- cpufreq_frequency_table_get_attr(data->powernow_table, pol->cpu);
-
pr_debug("cpu_init done, current fid 0x%x, vid 0x%x\n",
data->currfid, data->currvid);
return khz;
}
-static struct freq_attr *powernow_k8_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
static struct cpufreq_driver cpufreq_amd64_driver = {
- .verify = powernowk8_verify,
- .target = powernowk8_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = powernowk8_target,
.bios_limit = acpi_processor_get_bios_limit,
.init = powernowk8_cpu_init,
.exit = powernowk8_cpu_exit,
.get = powernowk8_get,
.name = "powernow-k8",
- .attr = powernow_k8_attr,
+ .attr = cpufreq_generic_attr,
};
static void __request_acpi_cpufreq(void)
table[i].frequency = CPUFREQ_TABLE_END;
/* set the min and max frequency properly */
- ret = cpufreq_frequency_table_cpuinfo(policy, table);
+ ret = cpufreq_table_validate_and_show(policy, table);
if (ret) {
pr_err("invalid frequency table: %d\n", ret);
goto err_nomem1;
per_cpu(cpu_data, i) = data;
policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
- policy->cur = corenet_cpufreq_get_speed(policy->cpu);
-
- cpufreq_frequency_table_get_attr(table, cpu);
of_node_put(np);
return 0;
return 0;
}
-static int corenet_cpufreq_verify(struct cpufreq_policy *policy)
-{
- struct cpufreq_frequency_table *table =
- per_cpu(cpu_data, policy->cpu)->table;
-
- return cpufreq_frequency_table_verify(policy, table);
-}
-
static int corenet_cpufreq_target(struct cpufreq_policy *policy,
- unsigned int target_freq, unsigned int relation)
+ unsigned int index)
{
struct cpufreq_freqs freqs;
- unsigned int new;
struct clk *parent;
int ret;
struct cpu_data *data = per_cpu(cpu_data, policy->cpu);
- cpufreq_frequency_table_target(policy, data->table,
- target_freq, relation, &new);
-
- if (policy->cur == data->table[new].frequency)
- return 0;
-
freqs.old = policy->cur;
- freqs.new = data->table[new].frequency;
+ freqs.new = data->table[index].frequency;
mutex_lock(&cpufreq_lock);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
- parent = of_clk_get(data->parent, data->table[new].driver_data);
+ parent = of_clk_get(data->parent, data->table[index].driver_data);
ret = clk_set_parent(data->clk, parent);
if (ret)
freqs.new = freqs.old;
return ret;
}
-static struct freq_attr *corenet_cpufreq_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
static struct cpufreq_driver ppc_corenet_cpufreq_driver = {
.name = "ppc_cpufreq",
.flags = CPUFREQ_CONST_LOOPS,
.init = corenet_cpufreq_cpu_init,
.exit = __exit_p(corenet_cpufreq_cpu_exit),
- .verify = corenet_cpufreq_verify,
- .target = corenet_cpufreq_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = corenet_cpufreq_target,
.get = corenet_cpufreq_get_speed,
- .attr = corenet_cpufreq_attr,
+ .attr = cpufreq_generic_attr,
};
static const struct of_device_id node_matches[] __initdata = {
cpumask_copy(policy->cpus, cpu_sibling_mask(policy->cpu));
#endif
- cpufreq_frequency_table_get_attr(cbe_freqs, policy->cpu);
-
/* this ensures that policy->cpuinfo_min
* and policy->cpuinfo_max are set correctly */
- return cpufreq_frequency_table_cpuinfo(policy, cbe_freqs);
-}
-
-static int cbe_cpufreq_cpu_exit(struct cpufreq_policy *policy)
-{
- cpufreq_frequency_table_put_attr(policy->cpu);
- return 0;
-}
-
-static int cbe_cpufreq_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, cbe_freqs);
+ return cpufreq_table_validate_and_show(policy, cbe_freqs);
}
static int cbe_cpufreq_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
+ unsigned int cbe_pmode_new)
{
int rc;
struct cpufreq_freqs freqs;
- unsigned int cbe_pmode_new;
-
- cpufreq_frequency_table_target(policy,
- cbe_freqs,
- target_freq,
- relation,
- &cbe_pmode_new);
freqs.old = policy->cur;
freqs.new = cbe_freqs[cbe_pmode_new].frequency;
}
static struct cpufreq_driver cbe_cpufreq_driver = {
- .verify = cbe_cpufreq_verify,
- .target = cbe_cpufreq_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = cbe_cpufreq_target,
.init = cbe_cpufreq_cpu_init,
- .exit = cbe_cpufreq_cpu_exit,
+ .exit = cpufreq_generic_exit,
.name = "cbe-cpufreq",
.flags = CPUFREQ_CONST_LOOPS,
};
return (interval - (cpu_is_pxa27x() ? 31 : 0)) / 32;
}
-/* find a valid frequency point */
-static int pxa_verify_policy(struct cpufreq_policy *policy)
-{
- struct cpufreq_frequency_table *pxa_freqs_table;
- pxa_freqs_t *pxa_freqs;
- int ret;
-
- find_freq_tables(&pxa_freqs_table, &pxa_freqs);
- ret = cpufreq_frequency_table_verify(policy, pxa_freqs_table);
-
- if (freq_debug)
- pr_debug("Verified CPU policy: %dKhz min to %dKhz max\n",
- policy->min, policy->max);
-
- return ret;
-}
-
static unsigned int pxa_cpufreq_get(unsigned int cpu)
{
return get_clk_frequency_khz(0);
}
-static int pxa_set_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
+static int pxa_set_target(struct cpufreq_policy *policy, unsigned int idx)
{
struct cpufreq_frequency_table *pxa_freqs_table;
pxa_freqs_t *pxa_freq_settings;
struct cpufreq_freqs freqs;
- unsigned int idx;
unsigned long flags;
unsigned int new_freq_cpu, new_freq_mem;
unsigned int unused, preset_mdrefr, postset_mdrefr, cclkcfg;
/* Get the current policy */
find_freq_tables(&pxa_freqs_table, &pxa_freq_settings);
- /* Lookup the next frequency */
- if (cpufreq_frequency_table_target(policy, pxa_freqs_table,
- target_freq, relation, &idx)) {
- return -EINVAL;
- }
-
new_freq_cpu = pxa_freq_settings[idx].khz;
new_freq_mem = pxa_freq_settings[idx].membus;
freqs.old = policy->cur;
/* set default policy and cpuinfo */
policy->cpuinfo.transition_latency = 1000; /* FIXME: 1 ms, assumed */
- policy->cur = get_clk_frequency_khz(0); /* current freq */
- policy->min = policy->max = policy->cur;
/* Generate pxa25x the run cpufreq_frequency_table struct */
for (i = 0; i < NUM_PXA25x_RUN_FREQS; i++) {
find_freq_tables(&pxa255_freq_table, &pxa255_freqs);
pr_info("PXA255 cpufreq using %s frequency table\n",
pxa255_turbo_table ? "turbo" : "run");
- cpufreq_frequency_table_cpuinfo(policy, pxa255_freq_table);
+
+ cpufreq_table_validate_and_show(policy, pxa255_freq_table);
+ }
+ else if (cpu_is_pxa27x()) {
+ cpufreq_table_validate_and_show(policy, pxa27x_freq_table);
}
- else if (cpu_is_pxa27x())
- cpufreq_frequency_table_cpuinfo(policy, pxa27x_freq_table);
printk(KERN_INFO "PXA CPU frequency change support initialized\n");
}
static struct cpufreq_driver pxa_cpufreq_driver = {
- .verify = pxa_verify_policy,
- .target = pxa_set_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = pxa_set_target,
.init = pxa_cpufreq_init,
+ .exit = cpufreq_generic_exit,
.get = pxa_cpufreq_get,
.name = "PXA2xx",
};
pxa3xx_freqs_num = num;
pxa3xx_freqs_table = table;
- return cpufreq_frequency_table_cpuinfo(policy, table);
+ return cpufreq_table_validate_and_show(policy, table);
}
static void __update_core_freq(struct pxa3xx_freq_info *info)
cpu_relax();
}
-static int pxa3xx_cpufreq_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, pxa3xx_freqs_table);
-}
-
static unsigned int pxa3xx_cpufreq_get(unsigned int cpu)
{
return pxa3xx_get_clk_frequency_khz(0);
}
-static int pxa3xx_cpufreq_set(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
+static int pxa3xx_cpufreq_set(struct cpufreq_policy *policy, unsigned int index)
{
struct pxa3xx_freq_info *next;
struct cpufreq_freqs freqs;
unsigned long flags;
- int idx;
if (policy->cpu != 0)
return -EINVAL;
- /* Lookup the next frequency */
- if (cpufreq_frequency_table_target(policy, pxa3xx_freqs_table,
- target_freq, relation, &idx))
- return -EINVAL;
-
- next = &pxa3xx_freqs[idx];
+ next = &pxa3xx_freqs[index];
freqs.old = policy->cur;
freqs.new = next->cpufreq_mhz * 1000;
freqs.old / 1000, freqs.new / 1000,
(freqs.old == freqs.new) ? " (skipped)" : "");
- if (freqs.old == target_freq)
- return 0;
-
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
local_irq_save(flags);
int ret = -EINVAL;
/* set default policy and cpuinfo */
- policy->cpuinfo.min_freq = 104000;
- policy->cpuinfo.max_freq = (cpu_is_pxa320()) ? 806000 : 624000;
+ policy->min = policy->cpuinfo.min_freq = 104000;
+ policy->max = policy->cpuinfo.max_freq =
+ (cpu_is_pxa320()) ? 806000 : 624000;
policy->cpuinfo.transition_latency = 1000; /* FIXME: 1 ms, assumed */
- policy->max = pxa3xx_get_clk_frequency_khz(0);
- policy->cur = policy->min = policy->max;
if (cpu_is_pxa300() || cpu_is_pxa310())
ret = setup_freqs_table(policy, pxa300_freqs,
}
static struct cpufreq_driver pxa3xx_cpufreq_driver = {
- .verify = pxa3xx_cpufreq_verify,
- .target = pxa3xx_cpufreq_set,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = pxa3xx_cpufreq_set,
.init = pxa3xx_cpufreq_init,
+ .exit = cpufreq_generic_exit,
.get = pxa3xx_cpufreq_get,
.name = "pxa3xx-cpufreq",
};
{ 0, CPUFREQ_TABLE_END },
};
-static int s3c2416_cpufreq_verify_speed(struct cpufreq_policy *policy)
-{
- struct s3c2416_data *s3c_freq = &s3c2416_cpufreq;
-
- if (policy->cpu != 0)
- return -EINVAL;
-
- return cpufreq_frequency_table_verify(policy, s3c_freq->freq_table);
-}
-
static unsigned int s3c2416_cpufreq_get_speed(unsigned int cpu)
{
struct s3c2416_data *s3c_freq = &s3c2416_cpufreq;
}
static int s3c2416_cpufreq_set_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
+ unsigned int index)
{
struct s3c2416_data *s3c_freq = &s3c2416_cpufreq;
struct cpufreq_freqs freqs;
int idx, ret, to_dvs = 0;
- unsigned int i;
mutex_lock(&cpufreq_lock);
- pr_debug("cpufreq: to %dKHz, relation %d\n", target_freq, relation);
-
- ret = cpufreq_frequency_table_target(policy, s3c_freq->freq_table,
- target_freq, relation, &i);
- if (ret != 0)
- goto out;
-
- idx = s3c_freq->freq_table[i].driver_data;
+ idx = s3c_freq->freq_table[index].driver_data;
if (idx == SOURCE_HCLK)
to_dvs = 1;
*/
freqs.new = (s3c_freq->is_dvs && !to_dvs)
? clk_get_rate(s3c_freq->hclk) / 1000
- : s3c_freq->freq_table[i].frequency;
+ : s3c_freq->freq_table[index].frequency;
pr_debug("cpufreq: Transition %d-%dkHz\n", freqs.old, freqs.new);
freq++;
}
- policy->cur = clk_get_rate(s3c_freq->armclk) / 1000;
-
/* Datasheet says PLL stabalisation time must be at least 300us,
* so but add some fudge. (reference in LOCKCON0 register description)
*/
- policy->cpuinfo.transition_latency = (500 * 1000) +
- s3c_freq->regulator_latency;
-
- ret = cpufreq_frequency_table_cpuinfo(policy, s3c_freq->freq_table);
+ ret = cpufreq_generic_init(policy, s3c_freq->freq_table,
+ (500 * 1000) + s3c_freq->regulator_latency);
if (ret)
goto err_freq_table;
- cpufreq_frequency_table_get_attr(s3c_freq->freq_table, 0);
-
register_reboot_notifier(&s3c2416_cpufreq_reboot_notifier);
return 0;
return ret;
}
-static struct freq_attr *s3c2416_cpufreq_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
static struct cpufreq_driver s3c2416_cpufreq_driver = {
.flags = 0,
- .verify = s3c2416_cpufreq_verify_speed,
- .target = s3c2416_cpufreq_set_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = s3c2416_cpufreq_set_target,
.get = s3c2416_cpufreq_get_speed,
.init = s3c2416_cpufreq_driver_init,
.name = "s3c2416",
- .attr = s3c2416_cpufreq_attr,
+ .attr = cpufreq_generic_attr,
};
static int __init s3c2416_cpufreq_init(void)
static int s3c_cpufreq_init(struct cpufreq_policy *policy)
{
- printk(KERN_INFO "%s: initialising policy %p\n", __func__, policy);
-
- if (policy->cpu != 0)
- return -EINVAL;
-
- policy->cur = s3c_cpufreq_get(0);
- policy->min = policy->cpuinfo.min_freq = 0;
- policy->max = policy->cpuinfo.max_freq = cpu_cur.info->max.fclk / 1000;
- policy->governor = CPUFREQ_DEFAULT_GOVERNOR;
-
- /* feed the latency information from the cpu driver */
- policy->cpuinfo.transition_latency = cpu_cur.info->latency;
-
- if (ftab)
- cpufreq_frequency_table_cpuinfo(policy, ftab);
-
- return 0;
+ return cpufreq_generic_init(policy, ftab, cpu_cur.info->latency);
}
static int __init s3c_cpufreq_initclks(void)
return 0;
}
-static int s3c_cpufreq_verify(struct cpufreq_policy *policy)
-{
- if (policy->cpu != 0)
- return -EINVAL;
-
- return 0;
-}
-
#ifdef CONFIG_PM
static struct cpufreq_frequency_table suspend_pll;
static unsigned int suspend_freq;
static struct cpufreq_driver s3c24xx_driver = {
.flags = CPUFREQ_STICKY,
- .verify = s3c_cpufreq_verify,
.target = s3c_cpufreq_target,
.get = s3c_cpufreq_get,
.init = s3c_cpufreq_init,
};
#endif
-static int s3c64xx_cpufreq_verify_speed(struct cpufreq_policy *policy)
-{
- if (policy->cpu != 0)
- return -EINVAL;
-
- return cpufreq_frequency_table_verify(policy, s3c64xx_freq_table);
-}
-
static unsigned int s3c64xx_cpufreq_get_speed(unsigned int cpu)
{
if (cpu != 0)
}
static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
+ unsigned int index)
{
int ret;
- unsigned int i;
struct cpufreq_freqs freqs;
struct s3c64xx_dvfs *dvfs;
- ret = cpufreq_frequency_table_target(policy, s3c64xx_freq_table,
- target_freq, relation, &i);
- if (ret != 0)
- return ret;
-
freqs.old = clk_get_rate(armclk) / 1000;
- freqs.new = s3c64xx_freq_table[i].frequency;
+ freqs.new = s3c64xx_freq_table[index].frequency;
freqs.flags = 0;
- dvfs = &s3c64xx_dvfs_table[s3c64xx_freq_table[i].driver_data];
-
- if (freqs.old == freqs.new)
- return 0;
+ dvfs = &s3c64xx_dvfs_table[s3c64xx_freq_table[index].driver_data];
pr_debug("Transition %d-%dkHz\n", freqs.old, freqs.new);
if (freq->frequency == CPUFREQ_ENTRY_INVALID)
continue;
- dvfs = &s3c64xx_dvfs_table[freq->index];
+ dvfs = &s3c64xx_dvfs_table[freq->driver_data];
found = 0;
for (i = 0; i < count; i++) {
freq++;
}
- policy->cur = clk_get_rate(armclk) / 1000;
-
/* Datasheet says PLL stabalisation time (if we were to use
* the PLLs, which we don't currently) is ~300us worst case,
* but add some fudge.
*/
- policy->cpuinfo.transition_latency = (500 * 1000) + regulator_latency;
-
- ret = cpufreq_frequency_table_cpuinfo(policy, s3c64xx_freq_table);
+ ret = cpufreq_generic_init(policy, s3c64xx_freq_table,
+ (500 * 1000) + regulator_latency);
if (ret != 0) {
pr_err("Failed to configure frequency table: %d\n",
ret);
static struct cpufreq_driver s3c64xx_cpufreq_driver = {
.flags = 0,
- .verify = s3c64xx_cpufreq_verify_speed,
- .target = s3c64xx_cpufreq_set_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = s3c64xx_cpufreq_set_target,
.get = s3c64xx_cpufreq_get_speed,
.init = s3c64xx_cpufreq_driver_init,
.name = "s3c",
/* Use 800MHz when entering sleep mode */
#define SLEEP_FREQ (800 * 1000)
-/*
- * relation has an additional symantics other than the standard of cpufreq
- * DISALBE_FURTHER_CPUFREQ: disable further access to target
- * ENABLE_FURTUER_CPUFREQ: enable access to target
- */
-enum cpufreq_access {
- DISABLE_FURTHER_CPUFREQ = 0x10,
- ENABLE_FURTHER_CPUFREQ = 0x20,
-};
-
+/* Tracks if cpu freqency can be updated anymore */
static bool no_cpufreq_access;
/*
__raw_writel(tmp1, reg);
}
-static int s5pv210_verify_speed(struct cpufreq_policy *policy)
-{
- if (policy->cpu)
- return -EINVAL;
-
- return cpufreq_frequency_table_verify(policy, s5pv210_freq_table);
-}
-
static unsigned int s5pv210_getspeed(unsigned int cpu)
{
if (cpu)
return clk_get_rate(cpu_clk) / 1000;
}
-static int s5pv210_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
+static int s5pv210_target(struct cpufreq_policy *policy, unsigned int index)
{
unsigned long reg;
- unsigned int index, priv_index;
+ unsigned int priv_index;
unsigned int pll_changing = 0;
unsigned int bus_speed_changing = 0;
int arm_volt, int_volt;
mutex_lock(&set_freq_lock);
- if (relation & ENABLE_FURTHER_CPUFREQ)
- no_cpufreq_access = false;
-
if (no_cpufreq_access) {
#ifdef CONFIG_PM_VERBOSE
pr_err("%s:%d denied access to %s as it is disabled"
goto exit;
}
- if (relation & DISABLE_FURTHER_CPUFREQ)
- no_cpufreq_access = true;
-
- relation &= ~(ENABLE_FURTHER_CPUFREQ | DISABLE_FURTHER_CPUFREQ);
-
freqs.old = s5pv210_getspeed(0);
-
- if (cpufreq_frequency_table_target(policy, s5pv210_freq_table,
- target_freq, relation, &index)) {
- ret = -EINVAL;
- goto exit;
- }
-
freqs.new = s5pv210_freq_table[index].frequency;
- if (freqs.new == freqs.old)
- goto exit;
-
/* Finding current running level index */
if (cpufreq_frequency_table_target(policy, s5pv210_freq_table,
- freqs.old, relation, &priv_index)) {
+ freqs.old, CPUFREQ_RELATION_H,
+ &priv_index)) {
ret = -EINVAL;
goto exit;
}
s5pv210_dram_conf[1].refresh = (__raw_readl(S5P_VA_DMC1 + 0x30) * 1000);
s5pv210_dram_conf[1].freq = clk_get_rate(dmc1_clk);
- policy->cur = policy->min = policy->max = s5pv210_getspeed(0);
-
- cpufreq_frequency_table_get_attr(s5pv210_freq_table, policy->cpu);
-
- policy->cpuinfo.transition_latency = 40000;
-
- return cpufreq_frequency_table_cpuinfo(policy, s5pv210_freq_table);
+ return cpufreq_generic_init(policy, s5pv210_freq_table, 40000);
out_dmc1:
clk_put(dmc0_clk);
switch (event) {
case PM_SUSPEND_PREPARE:
- ret = cpufreq_driver_target(cpufreq_cpu_get(0), SLEEP_FREQ,
- DISABLE_FURTHER_CPUFREQ);
+ ret = cpufreq_driver_target(cpufreq_cpu_get(0), SLEEP_FREQ, 0);
if (ret < 0)
return NOTIFY_BAD;
+ /* Disable updation of cpu frequency */
+ no_cpufreq_access = true;
return NOTIFY_OK;
case PM_POST_RESTORE:
case PM_POST_SUSPEND:
- cpufreq_driver_target(cpufreq_cpu_get(0), SLEEP_FREQ,
- ENABLE_FURTHER_CPUFREQ);
+ /* Enable updation of cpu frequency */
+ no_cpufreq_access = false;
+ cpufreq_driver_target(cpufreq_cpu_get(0), SLEEP_FREQ, 0);
return NOTIFY_OK;
}
{
int ret;
- ret = cpufreq_driver_target(cpufreq_cpu_get(0), SLEEP_FREQ,
- DISABLE_FURTHER_CPUFREQ);
+ ret = cpufreq_driver_target(cpufreq_cpu_get(0), SLEEP_FREQ, 0);
if (ret < 0)
return NOTIFY_BAD;
+ no_cpufreq_access = true;
return NOTIFY_DONE;
}
static struct cpufreq_driver s5pv210_driver = {
.flags = CPUFREQ_STICKY,
- .verify = s5pv210_verify_speed,
- .target = s5pv210_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = s5pv210_target,
.get = s5pv210_getspeed,
.init = s5pv210_cpu_init,
.name = "s5pv210",
}
}
-static int sa1100_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
+static int sa1100_target(struct cpufreq_policy *policy, unsigned int ppcr)
{
unsigned int cur = sa11x0_getspeed(0);
- unsigned int new_ppcr;
struct cpufreq_freqs freqs;
- new_ppcr = sa11x0_freq_to_ppcr(target_freq);
- switch (relation) {
- case CPUFREQ_RELATION_L:
- if (sa11x0_ppcr_to_freq(new_ppcr) > policy->max)
- new_ppcr--;
- break;
- case CPUFREQ_RELATION_H:
- if ((sa11x0_ppcr_to_freq(new_ppcr) > target_freq) &&
- (sa11x0_ppcr_to_freq(new_ppcr - 1) >= policy->min))
- new_ppcr--;
- break;
- }
-
freqs.old = cur;
- freqs.new = sa11x0_ppcr_to_freq(new_ppcr);
+ freqs.new = sa11x0_freq_table[ppcr].frequency;
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
if (freqs.new > cur)
sa1100_update_dram_timings(cur, freqs.new);
- PPCR = new_ppcr;
+ PPCR = ppcr;
if (freqs.new < cur)
sa1100_update_dram_timings(cur, freqs.new);
static int __init sa1100_cpu_init(struct cpufreq_policy *policy)
{
- if (policy->cpu != 0)
- return -EINVAL;
- policy->cur = policy->min = policy->max = sa11x0_getspeed(0);
- policy->cpuinfo.min_freq = 59000;
- policy->cpuinfo.max_freq = 287000;
- policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
- return 0;
+ return cpufreq_generic_init(policy, sa11x0_freq_table, CPUFREQ_ETERNAL);
}
static struct cpufreq_driver sa1100_driver __refdata = {
.flags = CPUFREQ_STICKY,
- .verify = sa11x0_verify_speed,
- .target = sa1100_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = sa1100_target,
.get = sa11x0_getspeed,
.init = sa1100_cpu_init,
.name = "sa1100",
/*
* Ok, set the CPU frequency.
*/
-static int sa1110_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
+static int sa1110_target(struct cpufreq_policy *policy, unsigned int ppcr)
{
struct sdram_params *sdram = &sdram_params;
struct cpufreq_freqs freqs;
struct sdram_info sd;
unsigned long flags;
- unsigned int ppcr, unused;
-
- switch (relation) {
- case CPUFREQ_RELATION_L:
- ppcr = sa11x0_freq_to_ppcr(target_freq);
- if (sa11x0_ppcr_to_freq(ppcr) > policy->max)
- ppcr--;
- break;
- case CPUFREQ_RELATION_H:
- ppcr = sa11x0_freq_to_ppcr(target_freq);
- if (ppcr && (sa11x0_ppcr_to_freq(ppcr) > target_freq) &&
- (sa11x0_ppcr_to_freq(ppcr-1) >= policy->min))
- ppcr--;
- break;
- default:
- return -EINVAL;
- }
+ unsigned int unused;
freqs.old = sa11x0_getspeed(0);
- freqs.new = sa11x0_ppcr_to_freq(ppcr);
+ freqs.new = sa11x0_freq_table[ppcr].frequency;
sdram_calculate_timing(&sd, freqs.new, sdram);
static int __init sa1110_cpu_init(struct cpufreq_policy *policy)
{
- if (policy->cpu != 0)
- return -EINVAL;
- policy->cur = policy->min = policy->max = sa11x0_getspeed(0);
- policy->cpuinfo.min_freq = 59000;
- policy->cpuinfo.max_freq = 287000;
- policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
- return 0;
+ return cpufreq_generic_init(policy, sa11x0_freq_table, CPUFREQ_ETERNAL);
}
/* sa1110_driver needs __refdata because it must remain after init registers
* it with cpufreq_register_driver() */
static struct cpufreq_driver sa1110_driver __refdata = {
.flags = CPUFREQ_STICKY,
- .verify = sa11x0_verify_speed,
- .target = sa1110_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = sa1110_target,
.get = sa11x0_getspeed,
.init = sa1110_cpu_init,
.name = "sa1110",
}
}
-static void sc520_freq_set_cpu_state(struct cpufreq_policy *policy,
- unsigned int state)
+static int sc520_freq_target(struct cpufreq_policy *policy, unsigned int state)
{
struct cpufreq_freqs freqs;
local_irq_enable();
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-};
-
-static int sc520_freq_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, &sc520_freq_table[0]);
-}
-
-static int sc520_freq_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
-{
- unsigned int newstate = 0;
-
- if (cpufreq_frequency_table_target(policy, sc520_freq_table,
- target_freq, relation, &newstate))
- return -EINVAL;
-
- sc520_freq_set_cpu_state(policy, newstate);
return 0;
}
-
/*
* Module init and exit code
*/
static int sc520_freq_cpu_init(struct cpufreq_policy *policy)
{
struct cpuinfo_x86 *c = &cpu_data(0);
- int result;
/* capability check */
if (c->x86_vendor != X86_VENDOR_AMD ||
/* cpuinfo and default policy values */
policy->cpuinfo.transition_latency = 1000000; /* 1ms */
- policy->cur = sc520_freq_get_cpu_frequency(0);
-
- result = cpufreq_frequency_table_cpuinfo(policy, sc520_freq_table);
- if (result)
- return result;
- cpufreq_frequency_table_get_attr(sc520_freq_table, policy->cpu);
-
- return 0;
-}
-
-
-static int sc520_freq_cpu_exit(struct cpufreq_policy *policy)
-{
- cpufreq_frequency_table_put_attr(policy->cpu);
- return 0;
+ return cpufreq_table_validate_and_show(policy, sc520_freq_table);
}
-static struct freq_attr *sc520_freq_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
-
static struct cpufreq_driver sc520_freq_driver = {
.get = sc520_freq_get_cpu_frequency,
- .verify = sc520_freq_verify,
- .target = sc520_freq_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = sc520_freq_target,
.init = sc520_freq_cpu_init,
- .exit = sc520_freq_cpu_exit,
+ .exit = cpufreq_generic_exit,
.name = "sc520_freq",
- .attr = sc520_freq_attr,
+ .attr = cpufreq_generic_attr,
};
static const struct x86_cpu_id sc520_ids[] = {
if (freq_table)
return cpufreq_frequency_table_verify(policy, freq_table);
- cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
- policy->cpuinfo.max_freq);
+ cpufreq_verify_within_cpu_limits(policy);
policy->min = (clk_round_rate(cpuclk, 1) + 500) / 1000;
policy->max = (clk_round_rate(cpuclk, ~0UL) + 500) / 1000;
- cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
- policy->cpuinfo.max_freq);
-
+ cpufreq_verify_within_cpu_limits(policy);
return 0;
}
return PTR_ERR(cpuclk);
}
- policy->cur = sh_cpufreq_get(cpu);
-
freq_table = cpuclk->nr_freqs ? cpuclk->freq_table : NULL;
if (freq_table) {
int result;
- result = cpufreq_frequency_table_cpuinfo(policy, freq_table);
- if (!result)
- cpufreq_frequency_table_get_attr(freq_table, cpu);
+ result = cpufreq_table_validate_and_show(policy, freq_table);
+ if (result)
+ return result;
} else {
dev_notice(dev, "no frequency table found, falling back "
"to rate rounding.\n");
return 0;
}
-static struct freq_attr *sh_freq_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
static struct cpufreq_driver sh_cpufreq_driver = {
.name = "sh",
.get = sh_cpufreq_get,
.verify = sh_cpufreq_verify,
.init = sh_cpufreq_cpu_init,
.exit = sh_cpufreq_cpu_exit,
- .attr = sh_freq_attr,
+ .attr = cpufreq_generic_attr,
};
static int __init sh_cpufreq_module_init(void)
return clock_tick / estar_to_divisor(estar);
}
-static void us2e_set_cpu_divider_index(struct cpufreq_policy *policy,
- unsigned int index)
+static int us2e_freq_target(struct cpufreq_policy *policy, unsigned int index)
{
unsigned int cpu = policy->cpu;
unsigned long new_bits, new_freq;
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
set_cpus_allowed_ptr(current, &cpus_allowed);
-}
-
-static int us2e_freq_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
-{
- unsigned int new_index = 0;
-
- if (cpufreq_frequency_table_target(policy,
- &us2e_freq_table[policy->cpu].table[0],
- target_freq, relation, &new_index))
- return -EINVAL;
-
- us2e_set_cpu_divider_index(policy, new_index);
return 0;
}
-static int us2e_freq_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy,
- &us2e_freq_table[policy->cpu].table[0]);
-}
-
static int __init us2e_freq_cpu_init(struct cpufreq_policy *policy)
{
unsigned int cpu = policy->cpu;
policy->cpuinfo.transition_latency = 0;
policy->cur = clock_tick;
- return cpufreq_frequency_table_cpuinfo(policy, table);
+ return cpufreq_table_validate_and_show(policy, table);
}
static int us2e_freq_cpu_exit(struct cpufreq_policy *policy)
{
- if (cpufreq_us2e_driver)
- us2e_set_cpu_divider_index(policy, 0);
+ if (cpufreq_us2e_driver) {
+ cpufreq_frequency_table_put_attr(policy->cpu);
+ us2e_freq_target(policy, 0);
+ }
return 0;
}
goto err_out;
driver->init = us2e_freq_cpu_init;
- driver->verify = us2e_freq_verify;
- driver->target = us2e_freq_target;
+ driver->verify = cpufreq_generic_frequency_table_verify;
+ driver->target_index = us2e_freq_target;
driver->get = us2e_freq_get;
driver->exit = us2e_freq_cpu_exit;
strcpy(driver->name, "UltraSPARC-IIe");
return ret;
}
-static void us3_set_cpu_divider_index(struct cpufreq_policy *policy,
- unsigned int index)
+static int us3_freq_target(struct cpufreq_policy *policy, unsigned int index)
{
unsigned int cpu = policy->cpu;
unsigned long new_bits, new_freq, reg;
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
set_cpus_allowed_ptr(current, &cpus_allowed);
-}
-
-static int us3_freq_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
-{
- unsigned int new_index = 0;
-
- if (cpufreq_frequency_table_target(policy,
- &us3_freq_table[policy->cpu].table[0],
- target_freq,
- relation,
- &new_index))
- return -EINVAL;
-
- us3_set_cpu_divider_index(policy, new_index);
return 0;
}
-static int us3_freq_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy,
- &us3_freq_table[policy->cpu].table[0]);
-}
-
static int __init us3_freq_cpu_init(struct cpufreq_policy *policy)
{
unsigned int cpu = policy->cpu;
policy->cpuinfo.transition_latency = 0;
policy->cur = clock_tick;
- return cpufreq_frequency_table_cpuinfo(policy, table);
+ return cpufreq_table_validate_and_show(policy, table);
}
static int us3_freq_cpu_exit(struct cpufreq_policy *policy)
{
- if (cpufreq_us3_driver)
- us3_set_cpu_divider_index(policy, 0);
+ if (cpufreq_us3_driver) {
+ cpufreq_frequency_table_put_attr(policy->cpu);
+ us3_freq_target(policy, 0);
+ }
return 0;
}
goto err_out;
driver->init = us3_freq_cpu_init;
- driver->verify = us3_freq_verify;
- driver->target = us3_freq_target;
+ driver->verify = cpufreq_generic_frequency_table_verify;
+ driver->target_index = us3_freq_target;
driver->get = us3_freq_get;
driver->exit = us3_freq_cpu_exit;
strcpy(driver->name, "UltraSPARC-III");
u32 cnt;
} spear_cpufreq;
-static int spear_cpufreq_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, spear_cpufreq.freq_tbl);
-}
-
static unsigned int spear_cpufreq_get(unsigned int cpu)
{
return clk_get_rate(spear_cpufreq.clk) / 1000;
}
static int spear_cpufreq_target(struct cpufreq_policy *policy,
- unsigned int target_freq, unsigned int relation)
+ unsigned int index)
{
struct cpufreq_freqs freqs;
- unsigned long newfreq;
+ long newfreq;
struct clk *srcclk;
- int index, ret, mult = 1;
-
- if (cpufreq_frequency_table_target(policy, spear_cpufreq.freq_tbl,
- target_freq, relation, &index))
- return -EINVAL;
+ int ret, mult = 1;
freqs.old = spear_cpufreq_get(0);
-
newfreq = spear_cpufreq.freq_tbl[index].frequency * 1000;
+
if (of_machine_is_compatible("st,spear1340")) {
/*
* SPEAr1340 is special in the sense that due to the possibility
static int spear_cpufreq_init(struct cpufreq_policy *policy)
{
- int ret;
-
- ret = cpufreq_frequency_table_cpuinfo(policy, spear_cpufreq.freq_tbl);
- if (ret) {
- pr_err("cpufreq_frequency_table_cpuinfo() failed");
- return ret;
- }
-
- cpufreq_frequency_table_get_attr(spear_cpufreq.freq_tbl, policy->cpu);
- policy->cpuinfo.transition_latency = spear_cpufreq.transition_latency;
- policy->cur = spear_cpufreq_get(0);
-
- cpumask_setall(policy->cpus);
-
- return 0;
-}
-
-static int spear_cpufreq_exit(struct cpufreq_policy *policy)
-{
- cpufreq_frequency_table_put_attr(policy->cpu);
- return 0;
+ return cpufreq_generic_init(policy, spear_cpufreq.freq_tbl,
+ spear_cpufreq.transition_latency);
}
-static struct freq_attr *spear_cpufreq_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
static struct cpufreq_driver spear_cpufreq_driver = {
.name = "cpufreq-spear",
.flags = CPUFREQ_STICKY,
- .verify = spear_cpufreq_verify,
- .target = spear_cpufreq_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = spear_cpufreq_target,
.get = spear_cpufreq_get,
.init = spear_cpufreq_init,
- .exit = spear_cpufreq_exit,
- .attr = spear_cpufreq_attr,
+ .exit = cpufreq_generic_exit,
+ .attr = cpufreq_generic_attr,
};
static int spear_cpufreq_driver_init(void)
static int centrino_cpu_init(struct cpufreq_policy *policy)
{
struct cpuinfo_x86 *cpu = &cpu_data(policy->cpu);
- unsigned freq;
unsigned l, h;
- int ret;
int i;
/* Only Intel makes Enhanced Speedstep-capable CPUs */
return -ENODEV;
}
- if (centrino_cpu_init_table(policy)) {
+ if (centrino_cpu_init_table(policy))
return -ENODEV;
- }
/* Check to see if Enhanced SpeedStep is enabled, and try to
enable it if not. */
}
}
- freq = get_cur_freq(policy->cpu);
policy->cpuinfo.transition_latency = 10000;
/* 10uS transition latency */
- policy->cur = freq;
-
- pr_debug("centrino_cpu_init: cur=%dkHz\n", policy->cur);
- ret = cpufreq_frequency_table_cpuinfo(policy,
+ return cpufreq_table_validate_and_show(policy,
per_cpu(centrino_model, policy->cpu)->op_points);
- if (ret)
- return (ret);
-
- cpufreq_frequency_table_get_attr(
- per_cpu(centrino_model, policy->cpu)->op_points, policy->cpu);
-
- return 0;
}
static int centrino_cpu_exit(struct cpufreq_policy *policy)
return 0;
}
-/**
- * centrino_verify - verifies a new CPUFreq policy
- * @policy: new policy
- *
- * Limit must be within this model's frequency range at least one
- * border included.
- */
-static int centrino_verify (struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy,
- per_cpu(centrino_model, policy->cpu)->op_points);
-}
-
/**
* centrino_setpolicy - set a new CPUFreq policy
* @policy: new policy
- * @target_freq: the target frequency
- * @relation: how that frequency relates to achieved frequency
- * (CPUFREQ_RELATION_L or CPUFREQ_RELATION_H)
+ * @index: index of target frequency
*
* Sets a new CPUFreq policy.
*/
-static int centrino_target (struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
+static int centrino_target(struct cpufreq_policy *policy, unsigned int index)
{
- unsigned int newstate = 0;
unsigned int msr, oldmsr = 0, h = 0, cpu = policy->cpu;
struct cpufreq_freqs freqs;
int retval = 0;
unsigned int j, first_cpu, tmp;
+ struct cpufreq_frequency_table *op_points;
cpumask_var_t covered_cpus;
if (unlikely(!zalloc_cpumask_var(&covered_cpus, GFP_KERNEL)))
goto out;
}
- if (unlikely(cpufreq_frequency_table_target(policy,
- per_cpu(centrino_model, cpu)->op_points,
- target_freq,
- relation,
- &newstate))) {
- retval = -EINVAL;
- goto out;
- }
-
first_cpu = 1;
+ op_points = &per_cpu(centrino_model, cpu)->op_points[index];
for_each_cpu(j, policy->cpus) {
int good_cpu;
break;
}
- msr = per_cpu(centrino_model, cpu)->op_points[newstate].driver_data;
+ msr = op_points->driver_data;
if (first_cpu) {
rdmsr_on_cpu(good_cpu, MSR_IA32_PERF_CTL, &oldmsr, &h);
freqs.new = extract_clock(msr, cpu, 0);
pr_debug("target=%dkHz old=%d new=%d msr=%04x\n",
- target_freq, freqs.old, freqs.new, msr);
+ op_points->frequency, freqs.old, freqs.new,
+ msr);
cpufreq_notify_transition(policy, &freqs,
CPUFREQ_PRECHANGE);
return retval;
}
-static struct freq_attr* centrino_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
static struct cpufreq_driver centrino_driver = {
.name = "centrino", /* should be speedstep-centrino,
but there's a 16 char limit */
.init = centrino_cpu_init,
.exit = centrino_cpu_exit,
- .verify = centrino_verify,
- .target = centrino_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = centrino_target,
.get = get_cur_freq,
- .attr = centrino_attr,
+ .attr = cpufreq_generic_attr,
};
/*
/**
* speedstep_target - set a new CPUFreq policy
* @policy: new policy
- * @target_freq: the target frequency
- * @relation: how that frequency relates to achieved frequency
- * (CPUFREQ_RELATION_L or CPUFREQ_RELATION_H)
+ * @index: index of target frequency
*
* Sets a new CPUFreq policy.
*/
-static int speedstep_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
+static int speedstep_target(struct cpufreq_policy *policy, unsigned int index)
{
- unsigned int newstate = 0, policy_cpu;
+ unsigned int policy_cpu;
struct cpufreq_freqs freqs;
- if (cpufreq_frequency_table_target(policy, &speedstep_freqs[0],
- target_freq, relation, &newstate))
- return -EINVAL;
-
policy_cpu = cpumask_any_and(policy->cpus, cpu_online_mask);
freqs.old = speedstep_get(policy_cpu);
- freqs.new = speedstep_freqs[newstate].frequency;
+ freqs.new = speedstep_freqs[index].frequency;
pr_debug("transiting from %u to %u kHz\n", freqs.old, freqs.new);
- /* no transition necessary */
- if (freqs.old == freqs.new)
- return 0;
-
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
- smp_call_function_single(policy_cpu, _speedstep_set_state, &newstate,
+ smp_call_function_single(policy_cpu, _speedstep_set_state, &index,
true);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
}
-/**
- * speedstep_verify - verifies a new CPUFreq policy
- * @policy: new policy
- *
- * Limit must be within speedstep_low_freq and speedstep_high_freq, with
- * at least one border included.
- */
-static int speedstep_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, &speedstep_freqs[0]);
-}
-
struct get_freqs {
struct cpufreq_policy *policy;
int ret;
static int speedstep_cpu_init(struct cpufreq_policy *policy)
{
- int result;
- unsigned int policy_cpu, speed;
+ unsigned int policy_cpu;
struct get_freqs gf;
/* only run on CPU to be set, or on its sibling */
if (gf.ret)
return gf.ret;
- /* get current speed setting */
- speed = speedstep_get(policy_cpu);
- if (!speed)
- return -EIO;
-
- pr_debug("currently at %s speed setting - %i MHz\n",
- (speed == speedstep_freqs[SPEEDSTEP_LOW].frequency)
- ? "low" : "high",
- (speed / 1000));
-
- /* cpuinfo and default policy values */
- policy->cur = speed;
-
- result = cpufreq_frequency_table_cpuinfo(policy, speedstep_freqs);
- if (result)
- return result;
-
- cpufreq_frequency_table_get_attr(speedstep_freqs, policy->cpu);
-
- return 0;
+ return cpufreq_table_validate_and_show(policy, speedstep_freqs);
}
-static int speedstep_cpu_exit(struct cpufreq_policy *policy)
-{
- cpufreq_frequency_table_put_attr(policy->cpu);
- return 0;
-}
-
-static struct freq_attr *speedstep_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
-
static struct cpufreq_driver speedstep_driver = {
.name = "speedstep-ich",
- .verify = speedstep_verify,
- .target = speedstep_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = speedstep_target,
.init = speedstep_cpu_init,
- .exit = speedstep_cpu_exit,
+ .exit = cpufreq_generic_exit,
.get = speedstep_get,
- .attr = speedstep_attr,
+ .attr = cpufreq_generic_attr,
};
static const struct x86_cpu_id ss_smi_ids[] = {
/**
* speedstep_target - set a new CPUFreq policy
* @policy: new policy
- * @target_freq: new freq
- * @relation:
+ * @index: index of new freq
*
* Sets a new CPUFreq policy/freq.
*/
-static int speedstep_target(struct cpufreq_policy *policy,
- unsigned int target_freq, unsigned int relation)
+static int speedstep_target(struct cpufreq_policy *policy, unsigned int index)
{
- unsigned int newstate = 0;
struct cpufreq_freqs freqs;
- if (cpufreq_frequency_table_target(policy, &speedstep_freqs[0],
- target_freq, relation, &newstate))
- return -EINVAL;
-
freqs.old = speedstep_freqs[speedstep_get_state()].frequency;
- freqs.new = speedstep_freqs[newstate].frequency;
-
- if (freqs.old == freqs.new)
- return 0;
+ freqs.new = speedstep_freqs[index].frequency;
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
- speedstep_set_state(newstate);
+ speedstep_set_state(index);
cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
return 0;
}
-/**
- * speedstep_verify - verifies a new CPUFreq policy
- * @policy: new policy
- *
- * Limit must be within speedstep_low_freq and speedstep_high_freq, with
- * at least one border included.
- */
-static int speedstep_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, &speedstep_freqs[0]);
-}
-
-
static int speedstep_cpu_init(struct cpufreq_policy *policy)
{
int result;
- unsigned int speed, state;
unsigned int *low, *high;
/* capability check */
pr_debug("workaround worked.\n");
}
- /* get current speed setting */
- state = speedstep_get_state();
- speed = speedstep_freqs[state].frequency;
-
- pr_debug("currently at %s speed setting - %i MHz\n",
- (speed == speedstep_freqs[SPEEDSTEP_LOW].frequency)
- ? "low" : "high",
- (speed / 1000));
-
- /* cpuinfo and default policy values */
policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
- policy->cur = speed;
-
- result = cpufreq_frequency_table_cpuinfo(policy, speedstep_freqs);
- if (result)
- return result;
-
- cpufreq_frequency_table_get_attr(speedstep_freqs, policy->cpu);
-
- return 0;
-}
-
-static int speedstep_cpu_exit(struct cpufreq_policy *policy)
-{
- cpufreq_frequency_table_put_attr(policy->cpu);
- return 0;
+ return cpufreq_table_validate_and_show(policy, speedstep_freqs);
}
static unsigned int speedstep_get(unsigned int cpu)
return result;
}
-static struct freq_attr *speedstep_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
static struct cpufreq_driver speedstep_driver = {
.name = "speedstep-smi",
- .verify = speedstep_verify,
- .target = speedstep_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = speedstep_target,
.init = speedstep_cpu_init,
- .exit = speedstep_cpu_exit,
+ .exit = cpufreq_generic_exit,
.get = speedstep_get,
.resume = speedstep_resume,
- .attr = speedstep_attr,
+ .attr = cpufreq_generic_attr,
};
static const struct x86_cpu_id ss_smi_ids[] = {
static DEFINE_MUTEX(tegra_cpu_lock);
static bool is_suspended;
-static int tegra_verify_speed(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, freq_table);
-}
-
static unsigned int tegra_getspeed(unsigned int cpu)
{
unsigned long rate;
return rate;
}
-static int tegra_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
+static int tegra_target(struct cpufreq_policy *policy, unsigned int index)
{
- unsigned int idx;
unsigned int freq;
int ret = 0;
goto out;
}
- cpufreq_frequency_table_target(policy, freq_table, target_freq,
- relation, &idx);
-
- freq = freq_table[idx].frequency;
+ freq = freq_table[index].frequency;
target_cpu_speed[policy->cpu] = freq;
static int tegra_cpu_init(struct cpufreq_policy *policy)
{
+ int ret;
+
if (policy->cpu >= NUM_CPUS)
return -EINVAL;
clk_prepare_enable(emc_clk);
clk_prepare_enable(cpu_clk);
- cpufreq_frequency_table_cpuinfo(policy, freq_table);
- cpufreq_frequency_table_get_attr(freq_table, policy->cpu);
- policy->cur = tegra_getspeed(policy->cpu);
- target_cpu_speed[policy->cpu] = policy->cur;
+ target_cpu_speed[policy->cpu] = tegra_getspeed(policy->cpu);
/* FIXME: what's the actual transition time? */
- policy->cpuinfo.transition_latency = 300 * 1000;
-
- cpumask_copy(policy->cpus, cpu_possible_mask);
+ ret = cpufreq_generic_init(policy, freq_table, 300 * 1000);
+ if (ret) {
+ clk_disable_unprepare(cpu_clk);
+ clk_disable_unprepare(emc_clk);
+ return ret;
+ }
if (policy->cpu == 0)
register_pm_notifier(&tegra_cpu_pm_notifier);
static int tegra_cpu_exit(struct cpufreq_policy *policy)
{
- cpufreq_frequency_table_cpuinfo(policy, freq_table);
+ cpufreq_frequency_table_put_attr(policy->cpu);
+ clk_disable_unprepare(cpu_clk);
clk_disable_unprepare(emc_clk);
return 0;
}
-static struct freq_attr *tegra_cpufreq_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
static struct cpufreq_driver tegra_cpufreq_driver = {
- .verify = tegra_verify_speed,
- .target = tegra_target,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = tegra_target,
.get = tegra_getspeed,
.init = tegra_cpu_init,
.exit = tegra_cpu_exit,
.name = "tegra",
- .attr = tegra_cpufreq_attr,
+ .attr = cpufreq_generic_attr,
};
static int __init tegra_cpufreq_init(void)
if (policy->cpu)
return -EINVAL;
- cpufreq_verify_within_limits(policy,
- policy->cpuinfo.min_freq, policy->cpuinfo.max_freq);
-
+ cpufreq_verify_within_cpu_limits(policy);
return 0;
}
{
if (policy->cpu != 0)
return -EINVAL;
- policy->cur = ucv2_getspeed(0);
policy->min = policy->cpuinfo.min_freq = 250000;
policy->max = policy->cpuinfo.max_freq = 1000000;
policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
# ARM CPU Idle drivers
#
+config ARM_BIG_LITTLE_CPUIDLE
+ bool "Support for ARM big.LITTLE processors"
+ depends on ARCH_VEXPRESS_TC2_PM
+ select ARM_CPU_SUSPEND
+ select CPU_IDLE_MULTIPLE_DRIVERS
+ help
+ Select this option to enable CPU idle driver for big.LITTLE based
+ ARM systems. Driver manages CPUs coordination through MCPM and
+ define different C-states for little and big cores through the
+ multiple CPU idle drivers infrastructure.
+
config ARM_HIGHBANK_CPUIDLE
bool "CPU Idle Driver for Calxeda processors"
depends on ARCH_HIGHBANK
help
Select this to enable cpuidle for ST-E u8500 processors
-config CPU_IDLE_BIG_LITTLE
- bool "Support for ARM big.LITTLE processors"
- depends on ARCH_VEXPRESS_TC2_PM
- select ARM_CPU_SUSPEND
- select CPU_IDLE_MULTIPLE_DRIVERS
+config ARM_AT91_CPUIDLE
+ bool "Cpu Idle Driver for the AT91 processors"
+ default y
+ depends on ARCH_AT91
help
- Select this option to enable CPU idle driver for big.LITTLE based
- ARM systems. Driver manages CPUs coordination through MCPM and
- define different C-states for little and big cores through the
- multiple CPU idle drivers infrastructure.
+ Select this to enable cpuidle for AT91 processors
##################################################################################
# ARM SoC drivers
+obj-$(CONFIG_ARM_BIG_LITTLE_CPUIDLE) += cpuidle-big_little.o
obj-$(CONFIG_ARM_HIGHBANK_CPUIDLE) += cpuidle-calxeda.o
obj-$(CONFIG_ARM_KIRKWOOD_CPUIDLE) += cpuidle-kirkwood.o
obj-$(CONFIG_ARM_ZYNQ_CPUIDLE) += cpuidle-zynq.o
obj-$(CONFIG_ARM_U8500_CPUIDLE) += cpuidle-ux500.o
-obj-$(CONFIG_CPU_IDLE_BIG_LITTLE) += cpuidle-big_little.o
+obj-$(CONFIG_ARM_AT91_CPUIDLE) += cpuidle-at91.o
--- /dev/null
+/*
+ * based on arch/arm/mach-kirkwood/cpuidle.c
+ *
+ * CPU idle support for AT91 SoC
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ *
+ * The cpu idle uses wait-for-interrupt and RAM self refresh in order
+ * to implement two idle states -
+ * #1 wait-for-interrupt
+ * #2 wait-for-interrupt and RAM self refresh
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/cpuidle.h>
+#include <linux/io.h>
+#include <linux/export.h>
+#include <asm/proc-fns.h>
+#include <asm/cpuidle.h>
+
+#define AT91_MAX_STATES 2
+
+static void (*at91_standby)(void);
+
+/* Actual code that puts the SoC in different idle states */
+static int at91_enter_idle(struct cpuidle_device *dev,
+ struct cpuidle_driver *drv,
+ int index)
+{
+ at91_standby();
+ return index;
+}
+
+static struct cpuidle_driver at91_idle_driver = {
+ .name = "at91_idle",
+ .owner = THIS_MODULE,
+ .states[0] = ARM_CPUIDLE_WFI_STATE,
+ .states[1] = {
+ .enter = at91_enter_idle,
+ .exit_latency = 10,
+ .target_residency = 10000,
+ .flags = CPUIDLE_FLAG_TIME_VALID,
+ .name = "RAM_SR",
+ .desc = "WFI and DDR Self Refresh",
+ },
+ .state_count = AT91_MAX_STATES,
+};
+
+/* Initialize CPU idle by registering the idle states */
+static int at91_cpuidle_probe(struct platform_device *dev)
+{
+ at91_standby = (void *)(dev->dev.platform_data);
+
+ return cpuidle_register(&at91_idle_driver, NULL);
+}
+
+static struct platform_driver at91_cpuidle_driver = {
+ .driver = {
+ .name = "cpuidle-at91",
+ .owner = THIS_MODULE,
+ },
+ .probe = at91_cpuidle_probe,
+};
+
+module_platform_driver(at91_cpuidle_driver);
.state_count = 2,
};
-static int __init dbx500_cpuidle_probe(struct platform_device *pdev)
+static int dbx500_cpuidle_probe(struct platform_device *pdev)
{
/* Configure wake up reasons */
prcmu_enable_wakeups(PRCMU_WAKEUP(ARM) | PRCMU_WAKEUP(RTC) |
#include <linux/init.h>
#include <linux/cpu_pm.h>
#include <linux/cpuidle.h>
-#include <linux/of.h>
+#include <linux/platform_device.h>
#include <asm/proc-fns.h>
#include <asm/cpuidle.h>
};
/* Initialize CPU idle by registering the idle states */
-static int __init zynq_cpuidle_init(void)
+static int zynq_cpuidle_probe(struct platform_device *pdev)
{
- if (!of_machine_is_compatible("xlnx,zynq-7000"))
- return -ENODEV;
-
pr_info("Xilinx Zynq CpuIdle Driver started\n");
return cpuidle_register(&zynq_idle_driver, NULL);
}
-device_initcall(zynq_cpuidle_init);
+static struct platform_driver zynq_cpuidle_driver = {
+ .driver = {
+ .name = "cpuidle-zynq",
+ .owner = THIS_MODULE,
+ },
+ .probe = zynq_cpuidle_probe,
+};
+
+module_platform_driver(zynq_cpuidle_driver);
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/stat.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
#include <linux/devfreq.h>
#include <linux/workqueue.h>
#include <linux/platform_device.h>
{
struct devfreq *df = to_devfreq(d);
struct device *dev = df->dev.parent;
- struct opp *opp;
+ struct dev_pm_opp *opp;
ssize_t count = 0;
unsigned long freq = 0;
rcu_read_lock();
do {
- opp = opp_find_freq_ceil(dev, &freq);
+ opp = dev_pm_opp_find_freq_ceil(dev, &freq);
if (IS_ERR(opp))
break;
* under the locked area. The pointer returned must be used prior to unlocking
* with rcu_read_unlock() to maintain the integrity of the pointer.
*/
-struct opp *devfreq_recommended_opp(struct device *dev, unsigned long *freq,
- u32 flags)
+struct dev_pm_opp *devfreq_recommended_opp(struct device *dev,
+ unsigned long *freq,
+ u32 flags)
{
- struct opp *opp;
+ struct dev_pm_opp *opp;
if (flags & DEVFREQ_FLAG_LEAST_UPPER_BOUND) {
/* The freq is an upper bound. opp should be lower */
- opp = opp_find_freq_floor(dev, freq);
+ opp = dev_pm_opp_find_freq_floor(dev, freq);
/* If not available, use the closest opp */
if (opp == ERR_PTR(-ERANGE))
- opp = opp_find_freq_ceil(dev, freq);
+ opp = dev_pm_opp_find_freq_ceil(dev, freq);
} else {
/* The freq is an lower bound. opp should be higher */
- opp = opp_find_freq_ceil(dev, freq);
+ opp = dev_pm_opp_find_freq_ceil(dev, freq);
/* If not available, use the closest opp */
if (opp == ERR_PTR(-ERANGE))
- opp = opp_find_freq_floor(dev, freq);
+ opp = dev_pm_opp_find_freq_floor(dev, freq);
}
return opp;
int ret = 0;
rcu_read_lock();
- nh = opp_get_notifier(dev);
+ nh = dev_pm_opp_get_notifier(dev);
if (IS_ERR(nh))
ret = PTR_ERR(nh);
rcu_read_unlock();
int ret = 0;
rcu_read_lock();
- nh = opp_get_notifier(dev);
+ nh = dev_pm_opp_get_notifier(dev);
if (IS_ERR(nh))
ret = PTR_ERR(nh);
rcu_read_unlock();
#include <linux/slab.h>
#include <linux/mutex.h>
#include <linux/suspend.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
#include <linux/devfreq.h>
#include <linux/platform_device.h>
#include <linux/regulator/consumer.h>
struct platform_device *pdev = container_of(dev, struct platform_device,
dev);
struct busfreq_data *data = platform_get_drvdata(pdev);
- struct opp *opp;
+ struct dev_pm_opp *opp;
unsigned long freq;
unsigned long old_freq = data->curr_oppinfo.rate;
struct busfreq_opp_info new_oppinfo;
rcu_read_unlock();
return PTR_ERR(opp);
}
- new_oppinfo.rate = opp_get_freq(opp);
- new_oppinfo.volt = opp_get_voltage(opp);
+ new_oppinfo.rate = dev_pm_opp_get_freq(opp);
+ new_oppinfo.volt = dev_pm_opp_get_voltage(opp);
rcu_read_unlock();
freq = new_oppinfo.rate;
exynos4210_busclk_table[i].volt = exynos4210_asv_volt[mgrp][i];
for (i = LV_0; i < EX4210_LV_NUM; i++) {
- err = opp_add(data->dev, exynos4210_busclk_table[i].clk,
+ err = dev_pm_opp_add(data->dev, exynos4210_busclk_table[i].clk,
exynos4210_busclk_table[i].volt);
if (err) {
dev_err(data->dev, "Cannot add opp entries.\n");
}
for (i = 0; i < EX4x12_LV_NUM; i++) {
- ret = opp_add(data->dev, exynos4x12_mifclk_table[i].clk,
+ ret = dev_pm_opp_add(data->dev, exynos4x12_mifclk_table[i].clk,
exynos4x12_mifclk_table[i].volt);
if (ret) {
dev_err(data->dev, "Fail to add opp entries.\n");
{
struct busfreq_data *data = container_of(this, struct busfreq_data,
pm_notifier);
- struct opp *opp;
+ struct dev_pm_opp *opp;
struct busfreq_opp_info new_oppinfo;
unsigned long maxfreq = ULONG_MAX;
int err = 0;
data->disabled = true;
rcu_read_lock();
- opp = opp_find_freq_floor(data->dev, &maxfreq);
+ opp = dev_pm_opp_find_freq_floor(data->dev, &maxfreq);
if (IS_ERR(opp)) {
rcu_read_unlock();
dev_err(data->dev, "%s: unable to find a min freq\n",
mutex_unlock(&data->lock);
return PTR_ERR(opp);
}
- new_oppinfo.rate = opp_get_freq(opp);
- new_oppinfo.volt = opp_get_voltage(opp);
+ new_oppinfo.rate = dev_pm_opp_get_freq(opp);
+ new_oppinfo.volt = dev_pm_opp_get_voltage(opp);
rcu_read_unlock();
err = exynos4_bus_setvolt(data, &new_oppinfo,
static int exynos4_busfreq_probe(struct platform_device *pdev)
{
struct busfreq_data *data;
- struct opp *opp;
+ struct dev_pm_opp *opp;
struct device *dev = &pdev->dev;
int err = 0;
}
rcu_read_lock();
- opp = opp_find_freq_floor(dev, &exynos4_devfreq_profile.initial_freq);
+ opp = dev_pm_opp_find_freq_floor(dev,
+ &exynos4_devfreq_profile.initial_freq);
if (IS_ERR(opp)) {
rcu_read_unlock();
dev_err(dev, "Invalid initial frequency %lu kHz.\n",
exynos4_devfreq_profile.initial_freq);
return PTR_ERR(opp);
}
- data->curr_oppinfo.rate = opp_get_freq(opp);
- data->curr_oppinfo.volt = opp_get_voltage(opp);
+ data->curr_oppinfo.rate = dev_pm_opp_get_freq(opp);
+ data->curr_oppinfo.volt = dev_pm_opp_get_voltage(opp);
rcu_read_unlock();
platform_set_drvdata(pdev, data);
#include <linux/module.h>
#include <linux/devfreq.h>
#include <linux/io.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
#include <linux/slab.h>
#include <linux/suspend.h>
-#include <linux/opp.h>
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
struct platform_device *pdev = container_of(dev, struct platform_device,
dev);
struct busfreq_data_int *data = platform_get_drvdata(pdev);
- struct opp *opp;
+ struct dev_pm_opp *opp;
unsigned long old_freq, freq;
unsigned long volt;
return PTR_ERR(opp);
}
- freq = opp_get_freq(opp);
- volt = opp_get_voltage(opp);
+ freq = dev_pm_opp_get_freq(opp);
+ volt = dev_pm_opp_get_voltage(opp);
rcu_read_unlock();
old_freq = data->curr_freq;
int i, err = 0;
for (i = LV_0; i < _LV_END; i++) {
- err = opp_add(data->dev, exynos5_int_opp_table[i].clk,
+ err = dev_pm_opp_add(data->dev, exynos5_int_opp_table[i].clk,
exynos5_int_opp_table[i].volt);
if (err) {
dev_err(data->dev, "Cannot add opp entries.\n");
{
struct busfreq_data_int *data = container_of(this,
struct busfreq_data_int, pm_notifier);
- struct opp *opp;
+ struct dev_pm_opp *opp;
unsigned long maxfreq = ULONG_MAX;
unsigned long freq;
unsigned long volt;
data->disabled = true;
rcu_read_lock();
- opp = opp_find_freq_floor(data->dev, &maxfreq);
+ opp = dev_pm_opp_find_freq_floor(data->dev, &maxfreq);
if (IS_ERR(opp)) {
rcu_read_unlock();
err = PTR_ERR(opp);
goto unlock;
}
- freq = opp_get_freq(opp);
- volt = opp_get_voltage(opp);
+ freq = dev_pm_opp_get_freq(opp);
+ volt = dev_pm_opp_get_voltage(opp);
rcu_read_unlock();
err = exynos5_int_setvolt(data, volt);
static int exynos5_busfreq_int_probe(struct platform_device *pdev)
{
struct busfreq_data_int *data;
- struct opp *opp;
+ struct dev_pm_opp *opp;
struct device *dev = &pdev->dev;
struct device_node *np;
unsigned long initial_freq;
}
rcu_read_lock();
- opp = opp_find_freq_floor(dev,
+ opp = dev_pm_opp_find_freq_floor(dev,
&exynos5_devfreq_int_profile.initial_freq);
if (IS_ERR(opp)) {
rcu_read_unlock();
err = PTR_ERR(opp);
goto err_opp_add;
}
- initial_freq = opp_get_freq(opp);
- initial_volt = opp_get_voltage(opp);
+ initial_freq = dev_pm_opp_get_freq(opp);
+ initial_volt = dev_pm_opp_get_voltage(opp);
rcu_read_unlock();
data->curr_freq = initial_freq;
depends on ARCH_DAVINCI || ARCH_OMAP
select DMA_ENGINE
select DMA_VIRTUAL_CHANNELS
+ select TI_PRIV_EDMA
default n
help
Enable support for the TI EDMA controller. This DMA
edma_alloc_slot(EDMA_CTLR(echan->ch_num),
EDMA_SLOT_ANY);
if (echan->slot[i] < 0) {
+ kfree(edesc);
dev_err(dev, "Failed to allocate slot\n");
+ kfree(edesc);
return NULL;
}
}
ccnt = sg_dma_len(sg) / (acnt * bcnt);
if (ccnt > (SZ_64K - 1)) {
dev_err(dev, "Exceeded max SG segment size\n");
+ kfree(edesc);
return NULL;
}
cidx = acnt * bcnt;
}
module_exit(edma_exit);
-MODULE_AUTHOR("Matt Porter <mporter@ti.com>");
+MODULE_AUTHOR("Matt Porter <matt.porter@linaro.org>");
MODULE_DESCRIPTION("TI EDMA DMA engine driver");
MODULE_LICENSE("GPL v2");
struct imxdma_engine *imxdma = imxdmac->imxdma;
int chno = imxdmac->channel;
struct imxdma_desc *desc;
+ unsigned long flags;
- spin_lock(&imxdma->lock);
+ spin_lock_irqsave(&imxdma->lock, flags);
if (list_empty(&imxdmac->ld_active)) {
- spin_unlock(&imxdma->lock);
+ spin_unlock_irqrestore(&imxdma->lock, flags);
goto out;
}
desc = list_first_entry(&imxdmac->ld_active,
struct imxdma_desc,
node);
- spin_unlock(&imxdma->lock);
+ spin_unlock_irqrestore(&imxdma->lock, flags);
if (desc->sg) {
u32 tmp;
{
struct imxdma_channel *imxdmac = to_imxdma_chan(d->desc.chan);
struct imxdma_engine *imxdma = imxdmac->imxdma;
- unsigned long flags;
int slot = -1;
int i;
switch (d->type) {
case IMXDMA_DESC_INTERLEAVED:
/* Try to get a free 2D slot */
- spin_lock_irqsave(&imxdma->lock, flags);
for (i = 0; i < IMX_DMA_2D_SLOTS; i++) {
if ((imxdma->slots_2d[i].count > 0) &&
((imxdma->slots_2d[i].xsr != d->x) ||
slot = i;
break;
}
- if (slot < 0) {
- spin_unlock_irqrestore(&imxdma->lock, flags);
+ if (slot < 0)
return -EBUSY;
- }
imxdma->slots_2d[slot].xsr = d->x;
imxdma->slots_2d[slot].ysr = d->y;
imxdmac->slot_2d = slot;
imxdmac->enabled_2d = true;
- spin_unlock_irqrestore(&imxdma->lock, flags);
if (slot == IMX_DMA_2D_SLOT_A) {
d->config_mem &= ~CCR_MSEL_B;
struct imxdma_channel *imxdmac = (void *)data;
struct imxdma_engine *imxdma = imxdmac->imxdma;
struct imxdma_desc *desc;
+ unsigned long flags;
- spin_lock(&imxdma->lock);
+ spin_lock_irqsave(&imxdma->lock, flags);
if (list_empty(&imxdmac->ld_active)) {
/* Someone might have called terminate all */
- goto out;
+ spin_unlock_irqrestore(&imxdma->lock, flags);
+ return;
}
desc = list_first_entry(&imxdmac->ld_active, struct imxdma_desc, node);
- if (desc->desc.callback)
- desc->desc.callback(desc->desc.callback_param);
-
/* If we are dealing with a cyclic descriptor, keep it on ld_active
* and dont mark the descriptor as complete.
* Only in non-cyclic cases it would be marked as complete
__func__, imxdmac->channel);
}
out:
- spin_unlock(&imxdma->lock);
+ spin_unlock_irqrestore(&imxdma->lock, flags);
+
+ if (desc->desc.callback)
+ desc->desc.callback(desc->desc.callback_param);
+
}
static int imxdma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd,
kfree(imxdmac->sg_list);
imxdmac->sg_list = kcalloc(periods + 1,
- sizeof(struct scatterlist), GFP_KERNEL);
+ sizeof(struct scatterlist), GFP_ATOMIC);
if (!imxdmac->sg_list)
return NULL;
void __iomem *base;
const struct hpb_dmae_slave_config *cfg;
char dev_id[16]; /* unique name per DMAC of channel */
+ dma_addr_t slave_addr;
};
struct hpb_dmae_device {
hpb_chan->xfer_mode = XFER_DOUBLE;
} else {
dev_err(hpb_chan->shdma_chan.dev, "DCR setting error");
- shdma_free_irq(&hpb_chan->shdma_chan);
return -EINVAL;
}
return 0;
}
-static int hpb_dmae_set_slave(struct shdma_chan *schan, int slave_id, bool try)
+static int hpb_dmae_set_slave(struct shdma_chan *schan, int slave_id,
+ dma_addr_t slave_addr, bool try)
{
struct hpb_dmae_chan *chan = to_chan(schan);
const struct hpb_dmae_slave_config *sc =
if (try)
return 0;
chan->cfg = sc;
+ chan->slave_addr = slave_addr ? : sc->addr;
return hpb_dmae_alloc_chan_resources(chan, sc);
}
{
struct hpb_dmae_chan *chan = to_chan(schan);
- return chan->cfg->addr;
+ return chan->slave_addr;
}
static struct shdma_desc *hpb_dmae_embedded_desc(void *buf, int i)
shdma_for_each_chan(schan, &hpbdev->shdma_dev, i) {
BUG_ON(!schan);
- shdma_free_irq(schan);
shdma_chan_remove(schan);
}
dma_dev->chancnt = 0;
struct lp_gpio *lg = irq_data_get_irq_handler_data(data);
struct irq_chip *chip = irq_data_get_irq_chip(data);
u32 base, pin, mask;
- unsigned long reg, pending;
+ unsigned long reg, ena, pending;
unsigned virq;
/* check from GPIO controller which pin triggered the interrupt */
for (base = 0; base < lg->chip.ngpio; base += 32) {
reg = lp_gpio_reg(&lg->chip, base, LP_INT_STAT);
+ ena = lp_gpio_reg(&lg->chip, base, LP_INT_ENABLE);
- while ((pending = inl(reg))) {
+ while ((pending = (inl(reg) & inl(ena)))) {
pin = __ffs(pending);
mask = BIT(pin);
/* Clear before handling so we don't lose an edge */
struct gpio_chip chip;
struct clk *dbck;
u32 mod_usage;
+ u32 irq_usage;
u32 dbck_enable_mask;
bool dbck_enabled;
struct device *dev;
#define GPIO_BIT(bank, gpio) (1 << GPIO_INDEX(bank, gpio))
#define GPIO_MOD_CTRL_BIT BIT(0)
+#define BANK_USED(bank) (bank->mod_usage || bank->irq_usage)
+#define LINE_USED(line, offset) (line & (1 << offset))
+
static int irq_to_gpio(struct gpio_bank *bank, unsigned int gpio_irq)
{
return bank->chip.base + gpio_irq;
return 0;
}
+static void _enable_gpio_module(struct gpio_bank *bank, unsigned offset)
+{
+ if (bank->regs->pinctrl) {
+ void __iomem *reg = bank->base + bank->regs->pinctrl;
+
+ /* Claim the pin for MPU */
+ __raw_writel(__raw_readl(reg) | (1 << offset), reg);
+ }
+
+ if (bank->regs->ctrl && !BANK_USED(bank)) {
+ void __iomem *reg = bank->base + bank->regs->ctrl;
+ u32 ctrl;
+
+ ctrl = __raw_readl(reg);
+ /* Module is enabled, clocks are not gated */
+ ctrl &= ~GPIO_MOD_CTRL_BIT;
+ __raw_writel(ctrl, reg);
+ bank->context.ctrl = ctrl;
+ }
+}
+
+static void _disable_gpio_module(struct gpio_bank *bank, unsigned offset)
+{
+ void __iomem *base = bank->base;
+
+ if (bank->regs->wkup_en &&
+ !LINE_USED(bank->mod_usage, offset) &&
+ !LINE_USED(bank->irq_usage, offset)) {
+ /* Disable wake-up during idle for dynamic tick */
+ _gpio_rmw(base, bank->regs->wkup_en, 1 << offset, 0);
+ bank->context.wake_en =
+ __raw_readl(bank->base + bank->regs->wkup_en);
+ }
+
+ if (bank->regs->ctrl && !BANK_USED(bank)) {
+ void __iomem *reg = bank->base + bank->regs->ctrl;
+ u32 ctrl;
+
+ ctrl = __raw_readl(reg);
+ /* Module is disabled, clocks are gated */
+ ctrl |= GPIO_MOD_CTRL_BIT;
+ __raw_writel(ctrl, reg);
+ bank->context.ctrl = ctrl;
+ }
+}
+
+static int gpio_is_input(struct gpio_bank *bank, int mask)
+{
+ void __iomem *reg = bank->base + bank->regs->direction;
+
+ return __raw_readl(reg) & mask;
+}
+
static int gpio_irq_type(struct irq_data *d, unsigned type)
{
struct gpio_bank *bank = irq_data_get_irq_chip_data(d);
unsigned gpio = 0;
int retval;
unsigned long flags;
+ unsigned offset;
- if (WARN_ON(!bank->mod_usage))
- return -EINVAL;
+ if (!BANK_USED(bank))
+ pm_runtime_get_sync(bank->dev);
#ifdef CONFIG_ARCH_OMAP1
if (d->irq > IH_MPUIO_BASE)
return -EINVAL;
spin_lock_irqsave(&bank->lock, flags);
- retval = _set_gpio_triggering(bank, GPIO_INDEX(bank, gpio), type);
+ offset = GPIO_INDEX(bank, gpio);
+ retval = _set_gpio_triggering(bank, offset, type);
+ if (!LINE_USED(bank->mod_usage, offset)) {
+ _enable_gpio_module(bank, offset);
+ _set_gpio_direction(bank, offset, 1);
+ } else if (!gpio_is_input(bank, 1 << offset)) {
+ spin_unlock_irqrestore(&bank->lock, flags);
+ return -EINVAL;
+ }
+
+ bank->irq_usage |= 1 << GPIO_INDEX(bank, gpio);
spin_unlock_irqrestore(&bank->lock, flags);
if (type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH))
* If this is the first gpio_request for the bank,
* enable the bank module.
*/
- if (!bank->mod_usage)
+ if (!BANK_USED(bank))
pm_runtime_get_sync(bank->dev);
spin_lock_irqsave(&bank->lock, flags);
/* Set trigger to none. You need to enable the desired trigger with
- * request_irq() or set_irq_type().
+ * request_irq() or set_irq_type(). Only do this if the IRQ line has
+ * not already been requested.
*/
- _set_gpio_triggering(bank, offset, IRQ_TYPE_NONE);
-
- if (bank->regs->pinctrl) {
- void __iomem *reg = bank->base + bank->regs->pinctrl;
-
- /* Claim the pin for MPU */
- __raw_writel(__raw_readl(reg) | (1 << offset), reg);
- }
-
- if (bank->regs->ctrl && !bank->mod_usage) {
- void __iomem *reg = bank->base + bank->regs->ctrl;
- u32 ctrl;
-
- ctrl = __raw_readl(reg);
- /* Module is enabled, clocks are not gated */
- ctrl &= ~GPIO_MOD_CTRL_BIT;
- __raw_writel(ctrl, reg);
- bank->context.ctrl = ctrl;
+ if (!LINE_USED(bank->irq_usage, offset)) {
+ _set_gpio_triggering(bank, offset, IRQ_TYPE_NONE);
+ _enable_gpio_module(bank, offset);
}
-
bank->mod_usage |= 1 << offset;
-
spin_unlock_irqrestore(&bank->lock, flags);
return 0;
static void omap_gpio_free(struct gpio_chip *chip, unsigned offset)
{
struct gpio_bank *bank = container_of(chip, struct gpio_bank, chip);
- void __iomem *base = bank->base;
unsigned long flags;
spin_lock_irqsave(&bank->lock, flags);
-
- if (bank->regs->wkup_en) {
- /* Disable wake-up during idle for dynamic tick */
- _gpio_rmw(base, bank->regs->wkup_en, 1 << offset, 0);
- bank->context.wake_en =
- __raw_readl(bank->base + bank->regs->wkup_en);
- }
-
bank->mod_usage &= ~(1 << offset);
-
- if (bank->regs->ctrl && !bank->mod_usage) {
- void __iomem *reg = bank->base + bank->regs->ctrl;
- u32 ctrl;
-
- ctrl = __raw_readl(reg);
- /* Module is disabled, clocks are gated */
- ctrl |= GPIO_MOD_CTRL_BIT;
- __raw_writel(ctrl, reg);
- bank->context.ctrl = ctrl;
- }
-
+ _disable_gpio_module(bank, offset);
_reset_gpio(bank, bank->chip.base + offset);
spin_unlock_irqrestore(&bank->lock, flags);
* If this is the last gpio to be freed in the bank,
* disable the bank module.
*/
- if (!bank->mod_usage)
+ if (!BANK_USED(bank))
pm_runtime_put(bank->dev);
}
struct gpio_bank *bank = irq_data_get_irq_chip_data(d);
unsigned int gpio = irq_to_gpio(bank, d->hwirq);
unsigned long flags;
+ unsigned offset = GPIO_INDEX(bank, gpio);
spin_lock_irqsave(&bank->lock, flags);
+ bank->irq_usage &= ~(1 << offset);
+ _disable_gpio_module(bank, offset);
_reset_gpio(bank, gpio);
spin_unlock_irqrestore(&bank->lock, flags);
+
+ /*
+ * If this is the last IRQ to be freed in the bank,
+ * disable the bank module.
+ */
+ if (!BANK_USED(bank))
+ pm_runtime_put(bank->dev);
}
static void gpio_ack_irq(struct irq_data *d)
return 0;
}
-static int gpio_is_input(struct gpio_bank *bank, int mask)
-{
- void __iomem *reg = bank->base + bank->regs->direction;
-
- return __raw_readl(reg) & mask;
-}
-
static int gpio_get(struct gpio_chip *chip, unsigned offset)
{
struct gpio_bank *bank;
{
struct gpio_bank *bank;
unsigned long flags;
+ int retval = 0;
bank = container_of(chip, struct gpio_bank, chip);
spin_lock_irqsave(&bank->lock, flags);
+
+ if (LINE_USED(bank->irq_usage, offset)) {
+ retval = -EINVAL;
+ goto exit;
+ }
+
bank->set_dataout(bank, offset, value);
_set_gpio_direction(bank, offset, 0);
+
+exit:
spin_unlock_irqrestore(&bank->lock, flags);
- return 0;
+ return retval;
}
static int gpio_debounce(struct gpio_chip *chip, unsigned offset,
struct gpio_bank *bank;
list_for_each_entry(bank, &omap_gpio_list, node) {
- if (!bank->mod_usage || !bank->loses_context)
+ if (!BANK_USED(bank) || !bank->loses_context)
continue;
bank->power_mode = pwr_mode;
struct gpio_bank *bank;
list_for_each_entry(bank, &omap_gpio_list, node) {
- if (!bank->mod_usage || !bank->loses_context)
+ if (!BANK_USED(bank) || !bank->loses_context)
continue;
pm_runtime_get_sync(bank->dev);
if (pdata) {
p->config = *pdata;
} else if (IS_ENABLED(CONFIG_OF) && np) {
- ret = of_parse_phandle_with_args(np, "gpio-ranges",
- "#gpio-range-cells", 0, &args);
- p->config.number_of_pins = ret == 0 && args.args_count == 3
- ? args.args[2]
+ ret = of_parse_phandle_with_fixed_args(np, "gpio-ranges", 3, 0,
+ &args);
+ p->config.number_of_pins = ret == 0 ? args.args[2]
: RCAR_MAX_GPIO_PER_BANK;
p->config.gpio_base = -1;
}
static irqreturn_t acpi_gpio_irq_handler_evt(int irq, void *data)
{
struct acpi_gpio_evt_pin *evt_pin = data;
- struct acpi_object_list args;
- union acpi_object arg;
- arg.type = ACPI_TYPE_INTEGER;
- arg.integer.value = evt_pin->pin;
- args.count = 1;
- args.pointer = &arg;
-
- acpi_evaluate_object(evt_pin->evt_handle, NULL, &args, NULL);
+ acpi_execute_simple_method(evt_pin->evt_handle, NULL, evt_pin->pin);
return IRQ_HANDLED;
}
*/
static int desc_to_gpio(const struct gpio_desc *desc)
{
- return desc->chip->base + gpio_chip_hwgpio(desc);
+ return desc - &gpio_desc[0];
}
int status = -EPROBE_DEFER;
unsigned long flags;
- if (!desc || !desc->chip) {
+ if (!desc) {
pr_warn("%s: invalid GPIO\n", __func__);
return -EINVAL;
}
spin_lock_irqsave(&gpio_lock, flags);
chip = desc->chip;
+ if (chip == NULL)
+ goto done;
if (!try_module_get(chip->owner))
goto done;
cmd = ioctl->cmd_drv;
}
else if ((nr >= DRM_COMMAND_END) || (nr < DRM_COMMAND_BASE)) {
+ u32 drv_size;
+
ioctl = &drm_ioctls[nr];
- cmd = ioctl->cmd;
+
+ drv_size = _IOC_SIZE(ioctl->cmd);
usize = asize = _IOC_SIZE(cmd);
+ if (drv_size > asize)
+ asize = drv_size;
+
+ cmd = ioctl->cmd;
} else
goto err_i1;
/* Speaker Allocation Data Block */
if (dbl == 3) {
*sadb = kmalloc(dbl, GFP_KERNEL);
+ if (!*sadb)
+ return -ENOMEM;
memcpy(*sadb, &db[1], dbl);
count = dbl;
break;
struct drm_connector *connector;
int i, j;
- /*
- * fbdev->blank can be called from irq context in case of a panic.
- * Since we already have our own special panic handler which will
- * restore the fbdev console mode completely, just bail out early.
- */
- if (oops_in_progress)
- return;
-
/*
* fbdev->blank can be called from irq context in case of a panic.
* Since we already have our own special panic handler which will
if (IS_ERR(pages))
return PTR_ERR(pages);
+ gt->npage = gt->gem.size / PAGE_SIZE;
gt->pages = pages;
return 0;
reg_write(encoder, REG_VIP_CNTRL_2, priv->vip_cntrl_2);
break;
case DRM_MODE_DPMS_OFF:
- /* disable audio and video ports */
- reg_write(encoder, REG_ENA_AP, 0x00);
+ /* disable video ports */
reg_write(encoder, REG_ENA_VP_0, 0x00);
reg_write(encoder, REG_ENA_VP_1, 0x00);
reg_write(encoder, REG_ENA_VP_2, 0x00);
* then we do not take part in VGA arbitration and the
* vga_client_register() fails with -ENODEV.
*/
- if (!HAS_PCH_SPLIT(dev)) {
- ret = vga_client_register(dev->pdev, dev, NULL,
- i915_vga_set_decode);
- if (ret && ret != -ENODEV)
- goto out;
- }
+ ret = vga_client_register(dev->pdev, dev, NULL, i915_vga_set_decode);
+ if (ret && ret != -ENODEV)
+ goto out;
intel_register_dsm_handler();
*/
intel_fbdev_initial_config(dev);
- /*
- * Must do this after fbcon init so that
- * vgacon_save_screen() works during the handover.
- */
- i915_disable_vga_mem(dev);
-
/* Only enable hotplug handling once the fbdev is fully set up. */
dev_priv->enable_hotplug_processing = true;
intel_modeset_suspend_hw(dev);
}
+ i915_gem_suspend_gtt_mappings(dev);
+
i915_save_state(dev);
intel_opregion_fini(dev);
mutex_lock(&dev->struct_mutex);
i915_gem_restore_gtt_mappings(dev);
mutex_unlock(&dev->struct_mutex);
- }
+ } else if (drm_core_check_feature(dev, DRIVER_MODESET))
+ i915_check_and_clear_faults(dev);
__i915_drm_thaw(dev);
/* FIXME: Need a more generic return type */
gen6_gtt_pte_t (*pte_encode)(dma_addr_t addr,
- enum i915_cache_level level);
+ enum i915_cache_level level,
+ bool valid); /* Create a valid PTE */
void (*clear_range)(struct i915_address_space *vm,
unsigned int first_entry,
- unsigned int num_entries);
+ unsigned int num_entries,
+ bool use_scratch);
void (*insert_entries)(struct i915_address_space *vm,
struct sg_table *st,
unsigned int first_entry,
void i915_ppgtt_unbind_object(struct i915_hw_ppgtt *ppgtt,
struct drm_i915_gem_object *obj);
+void i915_check_and_clear_faults(struct drm_device *dev);
+void i915_gem_suspend_gtt_mappings(struct drm_device *dev);
void i915_gem_restore_gtt_mappings(struct drm_device *dev);
int __must_check i915_gem_gtt_prepare_object(struct drm_i915_gem_object *obj);
void i915_gem_gtt_bind_object(struct drm_i915_gem_object *obj,
if (!mutex_trylock(&dev->struct_mutex)) {
if (!mutex_is_locked_by(&dev->struct_mutex, current))
- return SHRINK_STOP;
+ return 0;
if (dev_priv->mm.shrinker_no_lock_stealing)
- return SHRINK_STOP;
+ return 0;
unlock = false;
}
if (!mutex_trylock(&dev->struct_mutex)) {
if (!mutex_is_locked_by(&dev->struct_mutex, current))
- return 0;
+ return SHRINK_STOP;
if (dev_priv->mm.shrinker_no_lock_stealing)
- return 0;
+ return SHRINK_STOP;
unlock = false;
}
#define HSW_WT_ELLC_LLC_AGE0 HSW_CACHEABILITY_CONTROL(0x6)
static gen6_gtt_pte_t snb_pte_encode(dma_addr_t addr,
- enum i915_cache_level level)
+ enum i915_cache_level level,
+ bool valid)
{
- gen6_gtt_pte_t pte = GEN6_PTE_VALID;
+ gen6_gtt_pte_t pte = valid ? GEN6_PTE_VALID : 0;
pte |= GEN6_PTE_ADDR_ENCODE(addr);
switch (level) {
}
static gen6_gtt_pte_t ivb_pte_encode(dma_addr_t addr,
- enum i915_cache_level level)
+ enum i915_cache_level level,
+ bool valid)
{
- gen6_gtt_pte_t pte = GEN6_PTE_VALID;
+ gen6_gtt_pte_t pte = valid ? GEN6_PTE_VALID : 0;
pte |= GEN6_PTE_ADDR_ENCODE(addr);
switch (level) {
#define BYT_PTE_SNOOPED_BY_CPU_CACHES (1 << 2)
static gen6_gtt_pte_t byt_pte_encode(dma_addr_t addr,
- enum i915_cache_level level)
+ enum i915_cache_level level,
+ bool valid)
{
- gen6_gtt_pte_t pte = GEN6_PTE_VALID;
+ gen6_gtt_pte_t pte = valid ? GEN6_PTE_VALID : 0;
pte |= GEN6_PTE_ADDR_ENCODE(addr);
/* Mark the page as writeable. Other platforms don't have a
}
static gen6_gtt_pte_t hsw_pte_encode(dma_addr_t addr,
- enum i915_cache_level level)
+ enum i915_cache_level level,
+ bool valid)
{
- gen6_gtt_pte_t pte = GEN6_PTE_VALID;
+ gen6_gtt_pte_t pte = valid ? GEN6_PTE_VALID : 0;
pte |= HSW_PTE_ADDR_ENCODE(addr);
if (level != I915_CACHE_NONE)
}
static gen6_gtt_pte_t iris_pte_encode(dma_addr_t addr,
- enum i915_cache_level level)
+ enum i915_cache_level level,
+ bool valid)
{
- gen6_gtt_pte_t pte = GEN6_PTE_VALID;
+ gen6_gtt_pte_t pte = valid ? GEN6_PTE_VALID : 0;
pte |= HSW_PTE_ADDR_ENCODE(addr);
switch (level) {
/* PPGTT support for Sandybdrige/Gen6 and later */
static void gen6_ppgtt_clear_range(struct i915_address_space *vm,
unsigned first_entry,
- unsigned num_entries)
+ unsigned num_entries,
+ bool use_scratch)
{
struct i915_hw_ppgtt *ppgtt =
container_of(vm, struct i915_hw_ppgtt, base);
unsigned first_pte = first_entry % I915_PPGTT_PT_ENTRIES;
unsigned last_pte, i;
- scratch_pte = vm->pte_encode(vm->scratch.addr, I915_CACHE_LLC);
+ scratch_pte = vm->pte_encode(vm->scratch.addr, I915_CACHE_LLC, true);
while (num_entries) {
last_pte = first_pte + num_entries;
dma_addr_t page_addr;
page_addr = sg_page_iter_dma_address(&sg_iter);
- pt_vaddr[act_pte] = vm->pte_encode(page_addr, cache_level);
+ pt_vaddr[act_pte] = vm->pte_encode(page_addr, cache_level, true);
if (++act_pte == I915_PPGTT_PT_ENTRIES) {
kunmap_atomic(pt_vaddr);
act_pt++;
}
ppgtt->base.clear_range(&ppgtt->base, 0,
- ppgtt->num_pd_entries * I915_PPGTT_PT_ENTRIES);
+ ppgtt->num_pd_entries * I915_PPGTT_PT_ENTRIES, true);
ppgtt->pd_offset = first_pd_entry_in_global_pt * sizeof(gen6_gtt_pte_t);
{
ppgtt->base.clear_range(&ppgtt->base,
i915_gem_obj_ggtt_offset(obj) >> PAGE_SHIFT,
- obj->base.size >> PAGE_SHIFT);
+ obj->base.size >> PAGE_SHIFT,
+ true);
}
extern int intel_iommu_gfx_mapped;
dev_priv->mm.interruptible = interruptible;
}
+void i915_check_and_clear_faults(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_ring_buffer *ring;
+ int i;
+
+ if (INTEL_INFO(dev)->gen < 6)
+ return;
+
+ for_each_ring(ring, dev_priv, i) {
+ u32 fault_reg;
+ fault_reg = I915_READ(RING_FAULT_REG(ring));
+ if (fault_reg & RING_FAULT_VALID) {
+ DRM_DEBUG_DRIVER("Unexpected fault\n"
+ "\tAddr: 0x%08lx\\n"
+ "\tAddress space: %s\n"
+ "\tSource ID: %d\n"
+ "\tType: %d\n",
+ fault_reg & PAGE_MASK,
+ fault_reg & RING_FAULT_GTTSEL_MASK ? "GGTT" : "PPGTT",
+ RING_FAULT_SRCID(fault_reg),
+ RING_FAULT_FAULT_TYPE(fault_reg));
+ I915_WRITE(RING_FAULT_REG(ring),
+ fault_reg & ~RING_FAULT_VALID);
+ }
+ }
+ POSTING_READ(RING_FAULT_REG(&dev_priv->ring[RCS]));
+}
+
+void i915_gem_suspend_gtt_mappings(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ /* Don't bother messing with faults pre GEN6 as we have little
+ * documentation supporting that it's a good idea.
+ */
+ if (INTEL_INFO(dev)->gen < 6)
+ return;
+
+ i915_check_and_clear_faults(dev);
+
+ dev_priv->gtt.base.clear_range(&dev_priv->gtt.base,
+ dev_priv->gtt.base.start / PAGE_SIZE,
+ dev_priv->gtt.base.total / PAGE_SIZE,
+ false);
+}
+
void i915_gem_restore_gtt_mappings(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_i915_gem_object *obj;
+ i915_check_and_clear_faults(dev);
+
/* First fill our portion of the GTT with scratch pages */
dev_priv->gtt.base.clear_range(&dev_priv->gtt.base,
dev_priv->gtt.base.start / PAGE_SIZE,
- dev_priv->gtt.base.total / PAGE_SIZE);
+ dev_priv->gtt.base.total / PAGE_SIZE,
+ true);
list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) {
i915_gem_clflush_object(obj, obj->pin_display);
for_each_sg_page(st->sgl, &sg_iter, st->nents, 0) {
addr = sg_page_iter_dma_address(&sg_iter);
- iowrite32(vm->pte_encode(addr, level), >t_entries[i]);
+ iowrite32(vm->pte_encode(addr, level, true), >t_entries[i]);
i++;
}
*/
if (i != 0)
WARN_ON(readl(>t_entries[i-1]) !=
- vm->pte_encode(addr, level));
+ vm->pte_encode(addr, level, true));
/* This next bit makes the above posting read even more important. We
* want to flush the TLBs only after we're certain all the PTE updates
static void gen6_ggtt_clear_range(struct i915_address_space *vm,
unsigned int first_entry,
- unsigned int num_entries)
+ unsigned int num_entries,
+ bool use_scratch)
{
struct drm_i915_private *dev_priv = vm->dev->dev_private;
gen6_gtt_pte_t scratch_pte, __iomem *gtt_base =
first_entry, num_entries, max_entries))
num_entries = max_entries;
- scratch_pte = vm->pte_encode(vm->scratch.addr, I915_CACHE_LLC);
+ scratch_pte = vm->pte_encode(vm->scratch.addr, I915_CACHE_LLC, use_scratch);
+
for (i = 0; i < num_entries; i++)
iowrite32(scratch_pte, >t_base[i]);
readl(gtt_base);
static void i915_ggtt_clear_range(struct i915_address_space *vm,
unsigned int first_entry,
- unsigned int num_entries)
+ unsigned int num_entries,
+ bool unused)
{
intel_gtt_clear_range(first_entry, num_entries);
}
dev_priv->gtt.base.clear_range(&dev_priv->gtt.base,
entry,
- obj->base.size >> PAGE_SHIFT);
+ obj->base.size >> PAGE_SHIFT,
+ true);
obj->has_global_gtt_mapping = 0;
}
const unsigned long count = (hole_end - hole_start) / PAGE_SIZE;
DRM_DEBUG_KMS("clearing unused GTT space: [%lx, %lx]\n",
hole_start, hole_end);
- ggtt_vm->clear_range(ggtt_vm, hole_start / PAGE_SIZE, count);
+ ggtt_vm->clear_range(ggtt_vm, hole_start / PAGE_SIZE, count, true);
}
/* And finally clear the reserved guard page */
- ggtt_vm->clear_range(ggtt_vm, end / PAGE_SIZE - 1, 1);
+ ggtt_vm->clear_range(ggtt_vm, end / PAGE_SIZE - 1, 1, true);
}
static bool
/* Seek the first printf which is hits start position */
if (e->pos < e->start) {
- len = vsnprintf(NULL, 0, f, args);
- if (!__i915_error_seek(e, len))
+ va_list tmp;
+
+ va_copy(tmp, args);
+ if (!__i915_error_seek(e, vsnprintf(NULL, 0, f, tmp)))
return;
}
#define ARB_MODE_SWIZZLE_IVB (1<<5)
#define RENDER_HWS_PGA_GEN7 (0x04080)
#define RING_FAULT_REG(ring) (0x4094 + 0x100*(ring)->id)
+#define RING_FAULT_GTTSEL_MASK (1<<11)
+#define RING_FAULT_SRCID(x) ((x >> 3) & 0xff)
+#define RING_FAULT_FAULT_TYPE(x) ((x >> 1) & 0x3)
+#define RING_FAULT_VALID (1<<0)
#define DONE_REG 0x40b0
#define BSD_HWS_PGA_GEN7 (0x04180)
#define BLT_HWS_PGA_GEN7 (0x04280)
#define GEN7_SQ_CHICKEN_MBCUNIT_CONFIG 0x9030
#define GEN7_SQ_CHICKEN_MBCUNIT_SQINTMOB (1<<11)
+#define HSW_SCRATCH1 0xb038
+#define HSW_SCRATCH1_L3_DATA_ATOMICS_DISABLE (1<<27)
+
#define HSW_FUSE_STRAP 0x42014
#define HSW_CDCLK_LIMIT (1 << 24)
#define FDI_RX_CHICKEN(pipe) _PIPE(pipe, _FDI_RXA_CHICKEN, _FDI_RXB_CHICKEN)
#define SOUTH_DSPCLK_GATE_D 0xc2020
+#define PCH_DPLUNIT_CLOCK_GATE_DISABLE (1<<30)
#define PCH_DPLSUNIT_CLOCK_GATE_DISABLE (1<<29)
+#define PCH_CPUNIT_CLOCK_GATE_DISABLE (1<<14)
#define PCH_LP_PARTITION_LEVEL_DISABLE (1<<12)
/* CPU: FDI_TX */
#define GEN7_ROW_CHICKEN2_GT2 0xf4f4
#define DOP_CLOCK_GATING_DISABLE (1<<0)
+#define HSW_ROW_CHICKEN3 0xe49c
+#define HSW_ROW_CHICKEN3_L3_GLOBAL_ATOMICS_DISABLE (1 << 6)
+
#define G4X_AUD_VID_DID (dev_priv->info->display_mmio_offset + 0x62020)
#define INTEL_AUDIO_DEVCL 0x808629FB
#define INTEL_AUDIO_DEVBLC 0x80862801
static bool intel_dsm_pci_probe(struct pci_dev *pdev)
{
- acpi_handle dhandle, intel_handle;
- acpi_status status;
+ acpi_handle dhandle;
int ret;
dhandle = DEVICE_ACPI_HANDLE(&pdev->dev);
if (!dhandle)
return false;
- status = acpi_get_handle(dhandle, "_DSM", &intel_handle);
- if (ACPI_FAILURE(status)) {
+ if (!acpi_has_method(dhandle, "_DSM")) {
DRM_DEBUG_KMS("no _DSM method for intel device\n");
return false;
}
* consider. */
void intel_connector_dpms(struct drm_connector *connector, int mode)
{
- struct intel_encoder *encoder = intel_attached_encoder(connector);
-
/* All the simple cases only support two dpms states. */
if (mode != DRM_MODE_DPMS_ON)
mode = DRM_MODE_DPMS_OFF;
connector->dpms = mode;
/* Only need to change hw state when actually enabled */
- if (encoder->base.crtc)
- intel_encoder_dpms(encoder, mode);
- else
- WARN_ON(encoder->connectors_active != false);
+ if (connector->encoder)
+ intel_encoder_dpms(to_intel_encoder(connector->encoder), mode);
intel_modeset_check_state(connector->dev);
}
pipeconf = 0;
+ if (dev_priv->quirks & QUIRK_PIPEA_FORCE &&
+ I915_READ(PIPECONF(intel_crtc->pipe)) & PIPECONF_ENABLE)
+ pipeconf |= PIPECONF_ENABLE;
+
if (intel_crtc->pipe == 0 && INTEL_INFO(dev)->gen < 4) {
/* Enable pixel doubling when the dot clock is > 90% of the (display)
* core speed.
POSTING_READ(vga_reg);
}
-static void i915_enable_vga_mem(struct drm_device *dev)
-{
- /* Enable VGA memory on Intel HD */
- if (HAS_PCH_SPLIT(dev)) {
- vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO);
- outb(inb(VGA_MSR_READ) | VGA_MSR_MEM_EN, VGA_MSR_WRITE);
- vga_set_legacy_decoding(dev->pdev, VGA_RSRC_LEGACY_IO |
- VGA_RSRC_LEGACY_MEM |
- VGA_RSRC_NORMAL_IO |
- VGA_RSRC_NORMAL_MEM);
- vga_put(dev->pdev, VGA_RSRC_LEGACY_IO);
- }
-}
-
-void i915_disable_vga_mem(struct drm_device *dev)
-{
- /* Disable VGA memory on Intel HD */
- if (HAS_PCH_SPLIT(dev)) {
- vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO);
- outb(inb(VGA_MSR_READ) & ~VGA_MSR_MEM_EN, VGA_MSR_WRITE);
- vga_set_legacy_decoding(dev->pdev, VGA_RSRC_LEGACY_IO |
- VGA_RSRC_NORMAL_IO |
- VGA_RSRC_NORMAL_MEM);
- vga_put(dev->pdev, VGA_RSRC_LEGACY_IO);
- }
-}
-
void intel_modeset_init_hw(struct drm_device *dev)
{
intel_init_power_well(dev);
if (I915_READ(vga_reg) != VGA_DISP_DISABLE) {
DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n");
i915_disable_vga(dev);
- i915_disable_vga_mem(dev);
}
}
intel_disable_fbc(dev);
- i915_enable_vga_mem(dev);
-
intel_disable_gt_powersave(dev);
ironlake_teardown_rc6(dev);
DRM_DEBUG_KMS("aux_ch native nack\n");
return -EREMOTEIO;
case AUX_NATIVE_REPLY_DEFER:
- udelay(100);
+ /*
+ * For now, just give more slack to branch devices. We
+ * could check the DPCD for I2C bit rate capabilities,
+ * and if available, adjust the interval. We could also
+ * be more careful with DP-to-Legacy adapters where a
+ * long legacy cable may force very low I2C bit rates.
+ */
+ if (intel_dp->dpcd[DP_DOWNSTREAMPORT_PRESENT] &
+ DP_DWN_STRM_PORT_PRESENT)
+ usleep_range(500, 600);
+ else
+ usleep_range(300, 400);
continue;
default:
DRM_ERROR("aux_ch invalid native reply 0x%02x\n",
/* Avoid continuous PSR exit by masking memup and hpd */
I915_WRITE(EDP_PSR_DEBUG_CTL, EDP_PSR_DEBUG_MASK_MEMUP |
- EDP_PSR_DEBUG_MASK_HPD);
+ EDP_PSR_DEBUG_MASK_HPD | EDP_PSR_DEBUG_MASK_LPSP);
intel_dp->psr_setup_done = true;
}
extern void hsw_pc8_restore_interrupts(struct drm_device *dev);
extern void intel_aux_display_runtime_get(struct drm_i915_private *dev_priv);
extern void intel_aux_display_runtime_put(struct drm_i915_private *dev_priv);
-extern void i915_disable_vga_mem(struct drm_device *dev);
#endif /* __INTEL_DRV_H__ */
dev_priv->rps.rpe_delay),
dev_priv->rps.rpe_delay);
- INIT_DELAYED_WORK(&dev_priv->rps.vlv_work, vlv_rps_timer_work);
-
valleyview_set_rps(dev_priv->dev, dev_priv->rps.rpe_delay);
gen6_enable_rps_interrupts(dev);
* gating for the panel power sequencer or it will fail to
* start up when no ports are active.
*/
- I915_WRITE(SOUTH_DSPCLK_GATE_D, PCH_DPLSUNIT_CLOCK_GATE_DISABLE);
+ I915_WRITE(SOUTH_DSPCLK_GATE_D, PCH_DPLSUNIT_CLOCK_GATE_DISABLE |
+ PCH_DPLUNIT_CLOCK_GATE_DISABLE |
+ PCH_CPUNIT_CLOCK_GATE_DISABLE);
I915_WRITE(SOUTH_CHICKEN2, I915_READ(SOUTH_CHICKEN2) |
DPLS_EDP_PPS_FIX_DIS);
/* The below fixes the weird display corruption, a few pixels shifted
I915_WRITE(GEN7_L3_CHICKEN_MODE_REGISTER,
GEN7_WA_L3_CHICKEN_MODE);
+ /* L3 caching of data atomics doesn't work -- disable it. */
+ I915_WRITE(HSW_SCRATCH1, HSW_SCRATCH1_L3_DATA_ATOMICS_DISABLE);
+ I915_WRITE(HSW_ROW_CHICKEN3,
+ _MASKED_BIT_ENABLE(HSW_ROW_CHICKEN3_L3_GLOBAL_ATOMICS_DISABLE));
+
/* This is required by WaCatErrorRejectionIssue:hsw */
I915_WRITE(GEN7_SQ_CHICKEN_MBCUNIT_CONFIG,
I915_READ(GEN7_SQ_CHICKEN_MBCUNIT_CONFIG) |
INIT_DELAYED_WORK(&dev_priv->rps.delayed_resume_work,
intel_gen6_powersave_work);
+
+ INIT_DELAYED_WORK(&dev_priv->rps.vlv_work, vlv_rps_timer_work);
}
DRM_DEBUG_KMS("forcing bpc to 8 for TV\n");
pipe_config->pipe_bpp = 8*3;
+ /* TV has it's own notion of sync and other mode flags, so clear them. */
+ pipe_config->adjusted_mode.flags = 0;
+
+ /*
+ * FIXME: We don't check whether the input mode is actually what we want
+ * or whether userspace is doing something stupid.
+ */
+
return true;
}
#include "msm_drv.h"
#include "mdp4_kms.h"
-#include <mach/iommu.h>
-
static struct mdp4_platform_config *mdp4_get_config(struct platform_device *dev);
static int mdp4_hw_init(struct msm_kms *kms)
#include "msm_drv.h"
#include "msm_gpu.h"
-#include <mach/iommu.h>
-
static void msm_fb_output_poll_changed(struct drm_device *dev)
{
struct msm_drm_private *priv = dev->dev_private;
int i, ret;
for (i = 0; i < cnt; i++) {
+ /* TODO maybe some day msm iommu won't require this hack: */
+ struct device *msm_iommu_get_ctx(const char *ctx_name);
struct device *ctx = msm_iommu_get_ctx(names[i]);
if (!ctx)
continue;
* imx drm driver on iMX5
*/
dev_err(dev->dev, "failed to load kms\n");
- ret = PTR_ERR(priv->kms);
+ ret = PTR_ERR(kms);
goto fail;
}
.gem_vm_ops = &vm_ops,
.dumb_create = msm_gem_dumb_create,
.dumb_map_offset = msm_gem_dumb_map_offset,
- .dumb_destroy = msm_gem_dumb_destroy,
+ .dumb_destroy = drm_gem_dumb_destroy,
#ifdef CONFIG_DEBUG_FS
.debugfs_init = msm_debugfs_init,
.debugfs_cleanup = msm_debugfs_cleanup,
MSM_BO_SCANOUT | MSM_BO_WC, &args->handle);
}
-int msm_gem_dumb_destroy(struct drm_file *file, struct drm_device *dev,
- uint32_t handle)
-{
- /* No special work needed, drop the reference and see what falls out */
- return drm_gem_handle_delete(file, handle);
-}
-
int msm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
uint32_t handle, uint64_t *offset)
{
pmc->use_msi = false;
break;
default:
- pmc->use_msi = nouveau_boolopt(device->cfgopt, "NvMSI", true);
+ pmc->use_msi = nouveau_boolopt(device->cfgopt, "NvMSI", false);
if (pmc->use_msi) {
pmc->use_msi = pci_enable_msi(device->pdev) == 0;
if (pmc->use_msi) {
static int nouveau_dsm_pci_probe(struct pci_dev *pdev)
{
- acpi_handle dhandle, nvidia_handle;
- acpi_status status;
+ acpi_handle dhandle;
int retval = 0;
dhandle = DEVICE_ACPI_HANDLE(&pdev->dev);
if (!dhandle)
return false;
- status = acpi_get_handle(dhandle, "_DSM", &nvidia_handle);
- if (ACPI_FAILURE(status)) {
+ if (!acpi_has_method(dhandle, "_DSM"))
return false;
- }
if (nouveau_test_dsm(dhandle, nouveau_dsm, NOUVEAU_DSM_POWER))
retval |= NOUVEAU_DSM_HAS_MUX;
switch (connector->connector_type) {
case DRM_MODE_CONNECTOR_DVII:
case DRM_MODE_CONNECTOR_HDMIB: /* HDMI-B is basically DL-DVI; analog works fine */
- if ((radeon_connector->audio == RADEON_AUDIO_ENABLE) ||
- (drm_detect_hdmi_monitor(radeon_connector->edid) &&
- (radeon_connector->audio == RADEON_AUDIO_AUTO)))
- return ATOM_ENCODER_MODE_HDMI;
- else if (radeon_connector->use_digital)
+ if (radeon_audio != 0) {
+ if (radeon_connector->use_digital &&
+ (radeon_connector->audio == RADEON_AUDIO_ENABLE))
+ return ATOM_ENCODER_MODE_HDMI;
+ else if (drm_detect_hdmi_monitor(radeon_connector->edid) &&
+ (radeon_connector->audio == RADEON_AUDIO_AUTO))
+ return ATOM_ENCODER_MODE_HDMI;
+ else if (radeon_connector->use_digital)
+ return ATOM_ENCODER_MODE_DVI;
+ else
+ return ATOM_ENCODER_MODE_CRT;
+ } else if (radeon_connector->use_digital) {
return ATOM_ENCODER_MODE_DVI;
- else
+ } else {
return ATOM_ENCODER_MODE_CRT;
+ }
break;
case DRM_MODE_CONNECTOR_DVID:
case DRM_MODE_CONNECTOR_HDMIA:
default:
- if ((radeon_connector->audio == RADEON_AUDIO_ENABLE) ||
- (drm_detect_hdmi_monitor(radeon_connector->edid) &&
- (radeon_connector->audio == RADEON_AUDIO_AUTO)))
- return ATOM_ENCODER_MODE_HDMI;
- else
+ if (radeon_audio != 0) {
+ if (radeon_connector->audio == RADEON_AUDIO_ENABLE)
+ return ATOM_ENCODER_MODE_HDMI;
+ else if (drm_detect_hdmi_monitor(radeon_connector->edid) &&
+ (radeon_connector->audio == RADEON_AUDIO_AUTO))
+ return ATOM_ENCODER_MODE_HDMI;
+ else
+ return ATOM_ENCODER_MODE_DVI;
+ } else {
return ATOM_ENCODER_MODE_DVI;
+ }
break;
case DRM_MODE_CONNECTOR_LVDS:
return ATOM_ENCODER_MODE_LVDS;
case DRM_MODE_CONNECTOR_DisplayPort:
dig_connector = radeon_connector->con_priv;
if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
- (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP))
+ (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP)) {
return ATOM_ENCODER_MODE_DP;
- else if ((radeon_connector->audio == RADEON_AUDIO_ENABLE) ||
- (drm_detect_hdmi_monitor(radeon_connector->edid) &&
- (radeon_connector->audio == RADEON_AUDIO_AUTO)))
- return ATOM_ENCODER_MODE_HDMI;
- else
+ } else if (radeon_audio != 0) {
+ if (radeon_connector->audio == RADEON_AUDIO_ENABLE)
+ return ATOM_ENCODER_MODE_HDMI;
+ else if (drm_detect_hdmi_monitor(radeon_connector->edid) &&
+ (radeon_connector->audio == RADEON_AUDIO_AUTO))
+ return ATOM_ENCODER_MODE_HDMI;
+ else
+ return ATOM_ENCODER_MODE_DVI;
+ } else {
return ATOM_ENCODER_MODE_DVI;
+ }
break;
case DRM_MODE_CONNECTOR_eDP:
return ATOM_ENCODER_MODE_DP;
* does the same thing and more.
*/
if ((rdev->family != CHIP_RV710) && (rdev->family != CHIP_RV730) &&
- (rdev->family != CHIP_RS880))
+ (rdev->family != CHIP_RS780) && (rdev->family != CHIP_RS880))
atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE_OUTPUT, 0, 0);
}
if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(encoder)) && connector) {
{ 25000, 30000, RADEON_SCLK_UP }
};
+void btc_get_max_clock_from_voltage_dependency_table(struct radeon_clock_voltage_dependency_table *table,
+ u32 *max_clock)
+{
+ u32 i, clock = 0;
+
+ if ((table == NULL) || (table->count == 0)) {
+ *max_clock = clock;
+ return;
+ }
+
+ for (i = 0; i < table->count; i++) {
+ if (clock < table->entries[i].clk)
+ clock = table->entries[i].clk;
+ }
+ *max_clock = clock;
+}
+
void btc_apply_voltage_dependency_rules(struct radeon_clock_voltage_dependency_table *table,
u32 clock, u16 max_voltage, u16 *voltage)
{
}
j++;
- if (j > SMC_EVERGREEN_MC_REGISTER_ARRAY_SIZE)
+ if (j >= SMC_EVERGREEN_MC_REGISTER_ARRAY_SIZE)
return -EINVAL;
tmp = RREG32(MC_PMG_CMD_MRS);
}
j++;
- if (j > SMC_EVERGREEN_MC_REGISTER_ARRAY_SIZE)
+ if (j >= SMC_EVERGREEN_MC_REGISTER_ARRAY_SIZE)
return -EINVAL;
break;
case MC_SEQ_RESERVE_M >> 2:
}
j++;
- if (j > SMC_EVERGREEN_MC_REGISTER_ARRAY_SIZE)
+ if (j >= SMC_EVERGREEN_MC_REGISTER_ARRAY_SIZE)
return -EINVAL;
break;
default:
bool disable_mclk_switching;
u32 mclk, sclk;
u16 vddc, vddci;
+ u32 max_sclk_vddc, max_mclk_vddci, max_mclk_vddc;
if ((rdev->pm.dpm.new_active_crtc_count > 1) ||
btc_dpm_vblank_too_short(rdev))
ps->low.vddci = max_limits->vddci;
}
+ /* limit clocks to max supported clocks based on voltage dependency tables */
+ btc_get_max_clock_from_voltage_dependency_table(&rdev->pm.dpm.dyn_state.vddc_dependency_on_sclk,
+ &max_sclk_vddc);
+ btc_get_max_clock_from_voltage_dependency_table(&rdev->pm.dpm.dyn_state.vddci_dependency_on_mclk,
+ &max_mclk_vddci);
+ btc_get_max_clock_from_voltage_dependency_table(&rdev->pm.dpm.dyn_state.vddc_dependency_on_mclk,
+ &max_mclk_vddc);
+
+ if (max_sclk_vddc) {
+ if (ps->low.sclk > max_sclk_vddc)
+ ps->low.sclk = max_sclk_vddc;
+ if (ps->medium.sclk > max_sclk_vddc)
+ ps->medium.sclk = max_sclk_vddc;
+ if (ps->high.sclk > max_sclk_vddc)
+ ps->high.sclk = max_sclk_vddc;
+ }
+ if (max_mclk_vddci) {
+ if (ps->low.mclk > max_mclk_vddci)
+ ps->low.mclk = max_mclk_vddci;
+ if (ps->medium.mclk > max_mclk_vddci)
+ ps->medium.mclk = max_mclk_vddci;
+ if (ps->high.mclk > max_mclk_vddci)
+ ps->high.mclk = max_mclk_vddci;
+ }
+ if (max_mclk_vddc) {
+ if (ps->low.mclk > max_mclk_vddc)
+ ps->low.mclk = max_mclk_vddc;
+ if (ps->medium.mclk > max_mclk_vddc)
+ ps->medium.mclk = max_mclk_vddc;
+ if (ps->high.mclk > max_mclk_vddc)
+ ps->high.mclk = max_mclk_vddc;
+ }
+
/* XXX validate the min clocks required for display */
if (disable_mclk_switching) {
struct rv7xx_pl *pl);
void btc_apply_voltage_dependency_rules(struct radeon_clock_voltage_dependency_table *table,
u32 clock, u16 max_voltage, u16 *voltage);
+void btc_get_max_clock_from_voltage_dependency_table(struct radeon_clock_voltage_dependency_table *table,
+ u32 *max_clock);
void btc_apply_voltage_delta_rules(struct radeon_device *rdev,
u16 max_vddc, u16 max_vddci,
u16 *vddc, u16 *vddci);
};
extern u8 rv770_get_memory_module_index(struct radeon_device *rdev);
+extern void btc_get_max_clock_from_voltage_dependency_table(struct radeon_clock_voltage_dependency_table *table,
+ u32 *max_clock);
extern int ni_copy_and_switch_arb_sets(struct radeon_device *rdev,
u32 arb_freq_src, u32 arb_freq_dest);
extern u8 si_get_ddr3_mclk_frequency_ratio(u32 memory_clock);
struct radeon_clock_and_voltage_limits *max_limits;
bool disable_mclk_switching;
u32 sclk, mclk;
+ u32 max_sclk_vddc, max_mclk_vddci, max_mclk_vddc;
int i;
if ((rdev->pm.dpm.new_active_crtc_count > 1) ||
}
}
+ /* limit clocks to max supported clocks based on voltage dependency tables */
+ btc_get_max_clock_from_voltage_dependency_table(&rdev->pm.dpm.dyn_state.vddc_dependency_on_sclk,
+ &max_sclk_vddc);
+ btc_get_max_clock_from_voltage_dependency_table(&rdev->pm.dpm.dyn_state.vddci_dependency_on_mclk,
+ &max_mclk_vddci);
+ btc_get_max_clock_from_voltage_dependency_table(&rdev->pm.dpm.dyn_state.vddc_dependency_on_mclk,
+ &max_mclk_vddc);
+
+ for (i = 0; i < ps->performance_level_count; i++) {
+ if (max_sclk_vddc) {
+ if (ps->performance_levels[i].sclk > max_sclk_vddc)
+ ps->performance_levels[i].sclk = max_sclk_vddc;
+ }
+ if (max_mclk_vddci) {
+ if (ps->performance_levels[i].mclk > max_mclk_vddci)
+ ps->performance_levels[i].mclk = max_mclk_vddci;
+ }
+ if (max_mclk_vddc) {
+ if (ps->performance_levels[i].mclk > max_mclk_vddc)
+ ps->performance_levels[i].mclk = max_mclk_vddc;
+ }
+ }
+
/* XXX validate the min clocks required for display */
if (disable_mclk_switching) {
static void cik_program_aspm(struct radeon_device *rdev);
static void cik_init_pg(struct radeon_device *rdev);
static void cik_init_cg(struct radeon_device *rdev);
+static void cik_fini_pg(struct radeon_device *rdev);
+static void cik_fini_cg(struct radeon_device *rdev);
static void cik_enable_gui_idle_interrupt(struct radeon_device *rdev,
bool enable);
fw_name);
release_firmware(rdev->smc_fw);
rdev->smc_fw = NULL;
+ err = 0;
} else if (rdev->smc_fw->size != smc_req_size) {
printk(KERN_ERR
"cik_smc: Bogus length %zu in firmware \"%s\"\n",
rdev->config.cik.tile_config |= (3 << 0);
break;
}
- if ((mc_arb_ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT)
- rdev->config.cik.tile_config |= 1 << 4;
- else
- rdev->config.cik.tile_config |= 0 << 4;
+ rdev->config.cik.tile_config |=
+ ((mc_arb_ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT) << 4;
rdev->config.cik.tile_config |=
((gb_addr_config & PIPE_INTERLEAVE_SIZE_MASK) >> PIPE_INTERLEAVE_SIZE_SHIFT) << 8;
rdev->config.cik.tile_config |=
r = radeon_ib_get(rdev, ring->idx, &ib, NULL, 256);
if (r) {
DRM_ERROR("radeon: failed to get ib (%d).\n", r);
+ radeon_scratch_free(rdev, scratch);
return r;
}
ib.ptr[0] = PACKET3(PACKET3_SET_UCONFIG_REG, 1);
r = radeon_fence_wait(ib.fence, false);
if (r) {
DRM_ERROR("radeon: fence wait failed (%d).\n", r);
+ radeon_scratch_free(rdev, scratch);
+ radeon_ib_free(rdev, &ib);
return r;
}
for (i = 0; i < rdev->usec_timeout; i++) {
dev_info(rdev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
RREG32(VM_CONTEXT1_PROTECTION_FAULT_STATUS));
+ /* disable CG/PG */
+ cik_fini_pg(rdev);
+ cik_fini_cg(rdev);
+
/* stop the rlc */
cik_rlc_stop(rdev);
rdev->mc.aper_base = pci_resource_start(rdev->pdev, 0);
rdev->mc.aper_size = pci_resource_len(rdev->pdev, 0);
/* size in MB on si */
- rdev->mc.mc_vram_size = RREG32(CONFIG_MEMSIZE) * 1024 * 1024;
- rdev->mc.real_vram_size = RREG32(CONFIG_MEMSIZE) * 1024 * 1024;
+ rdev->mc.mc_vram_size = RREG32(CONFIG_MEMSIZE) * 1024ULL * 1024ULL;
+ rdev->mc.real_vram_size = RREG32(CONFIG_MEMSIZE) * 1024ULL * 1024ULL;
rdev->mc.visible_vram_size = rdev->mc.aper_size;
si_vram_gtt_location(rdev, &rdev->mc);
radeon_update_bandwidth_info(rdev);
u32 mc_id = (status & MEMORY_CLIENT_ID_MASK) >> MEMORY_CLIENT_ID_SHIFT;
u32 vmid = (status & FAULT_VMID_MASK) >> FAULT_VMID_SHIFT;
u32 protections = (status & PROTECTIONS_MASK) >> PROTECTIONS_SHIFT;
- char *block = (char *)&mc_client;
+ char block[5] = { mc_client >> 24, (mc_client >> 16) & 0xff,
+ (mc_client >> 8) & 0xff, mc_client & 0xff, 0 };
- printk("VM fault (0x%02x, vmid %d) at page %u, %s from %s (%d)\n",
+ printk("VM fault (0x%02x, vmid %d) at page %u, %s from '%s' (0x%08x) (%d)\n",
protections, vmid, addr,
(status & MEMORY_CLIENT_RW_MASK) ? "write" : "read",
- block, mc_id);
+ block, mc_client, mc_id);
}
/**
u8 *sadb;
int sad_count;
+ /* XXX: setting this register causes hangs on some asics */
+ return;
+
if (!dig->afmt->pin)
return;
rdev->config.evergreen.sx_max_export_size = 256;
rdev->config.evergreen.sx_max_export_pos_size = 64;
rdev->config.evergreen.sx_max_export_smx_size = 192;
- rdev->config.evergreen.max_hw_contexts = 8;
+ rdev->config.evergreen.max_hw_contexts = 4;
rdev->config.evergreen.sq_num_cf_insts = 2;
rdev->config.evergreen.sc_prim_fifo_size = 0x40;
u8 *sadb;
int sad_count;
+ /* XXX: setting this register causes hangs on some asics */
+ return;
+
list_for_each_entry(connector, &encoder->dev->mode_config.connector_list, head) {
if (connector->encoder == encoder)
radeon_connector = to_radeon_connector(connector);
/* fglrx clears sth in AFMT_AUDIO_PACKET_CONTROL2 here */
WREG32(HDMI_ACR_PACKET_CONTROL + offset,
- HDMI_ACR_AUTO_SEND | /* allow hw to sent ACR packets when required */
- HDMI_ACR_SOURCE); /* select SW CTS value */
+ HDMI_ACR_AUTO_SEND); /* allow hw to sent ACR packets when required */
evergreen_hdmi_update_ACR(encoder, mode->clock);
* 6. COMMAND [29:22] | BYTE_COUNT [20:0]
*/
# define PACKET3_CP_DMA_DST_SEL(x) ((x) << 20)
- /* 0 - SRC_ADDR
+ /* 0 - DST_ADDR
* 1 - GDS
*/
# define PACKET3_CP_DMA_ENGINE(x) ((x) << 27)
# define PACKET3_CP_DMA_CP_SYNC (1 << 31)
/* COMMAND */
# define PACKET3_CP_DMA_DIS_WC (1 << 21)
-# define PACKET3_CP_DMA_CMD_SRC_SWAP(x) ((x) << 23)
+# define PACKET3_CP_DMA_CMD_SRC_SWAP(x) ((x) << 22)
/* 0 - none
* 1 - 8 in 16
* 2 - 8 in 32
fw_name);
release_firmware(rdev->smc_fw);
rdev->smc_fw = NULL;
+ err = 0;
} else if (rdev->smc_fw->size != smc_req_size) {
printk(KERN_ERR
"ni_mc: Bogus length %zu in firmware \"%s\"\n",
bool disable_mclk_switching;
u32 mclk, sclk;
u16 vddc, vddci;
+ u32 max_sclk_vddc, max_mclk_vddci, max_mclk_vddc;
int i;
if ((rdev->pm.dpm.new_active_crtc_count > 1) ||
}
}
+ /* limit clocks to max supported clocks based on voltage dependency tables */
+ btc_get_max_clock_from_voltage_dependency_table(&rdev->pm.dpm.dyn_state.vddc_dependency_on_sclk,
+ &max_sclk_vddc);
+ btc_get_max_clock_from_voltage_dependency_table(&rdev->pm.dpm.dyn_state.vddci_dependency_on_mclk,
+ &max_mclk_vddci);
+ btc_get_max_clock_from_voltage_dependency_table(&rdev->pm.dpm.dyn_state.vddc_dependency_on_mclk,
+ &max_mclk_vddc);
+
+ for (i = 0; i < ps->performance_level_count; i++) {
+ if (max_sclk_vddc) {
+ if (ps->performance_levels[i].sclk > max_sclk_vddc)
+ ps->performance_levels[i].sclk = max_sclk_vddc;
+ }
+ if (max_mclk_vddci) {
+ if (ps->performance_levels[i].mclk > max_mclk_vddci)
+ ps->performance_levels[i].mclk = max_mclk_vddci;
+ }
+ if (max_mclk_vddc) {
+ if (ps->performance_levels[i].mclk > max_mclk_vddc)
+ ps->performance_levels[i].mclk = max_mclk_vddc;
+ }
+ }
+
/* XXX validate the min clocks required for display */
if (disable_mclk_switching) {
seq_printf(m, "CP_RB_RPTR 0x%08x\n", rdp);
seq_printf(m, "%u free dwords in ring\n", ring->ring_free_dw);
seq_printf(m, "%u dwords in ring\n", count);
- for (j = 0; j <= count; j++) {
- i = (rdp + j) & ring->ptr_mask;
- seq_printf(m, "r[%04d]=0x%08x\n", i, ring->ring[i]);
+ if (ring->ready) {
+ for (j = 0; j <= count; j++) {
+ i = (rdp + j) & ring->ptr_mask;
+ seq_printf(m, "r[%04d]=0x%08x\n", i, ring->ring[i]);
+ }
}
return 0;
}
fw_name);
release_firmware(rdev->smc_fw);
rdev->smc_fw = NULL;
+ err = 0;
} else if (rdev->smc_fw->size != smc_req_size) {
printk(KERN_ERR
"smc: Bogus length %zu in firmware \"%s\"\n",
rdev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries[i].dclk =
le16_to_cpu(uvd_clk->usDClkLow) | (uvd_clk->ucDClkHigh << 16);
rdev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries[i].v =
- le16_to_cpu(limits->entries[i].usVoltage);
+ le16_to_cpu(entry->usVoltage);
entry = (ATOM_PPLIB_UVD_Clock_Voltage_Limit_Record *)
((u8 *)entry + sizeof(ATOM_PPLIB_UVD_Clock_Voltage_Limit_Record));
}
static const struct radeon_hdmi_acr r600_hdmi_predefined_acr[] = {
/* 32kHz 44.1kHz 48kHz */
/* Clock N CTS N CTS N CTS */
- { 25174, 4576, 28125, 7007, 31250, 6864, 28125 }, /* 25,20/1.001 MHz */
+ { 25175, 4576, 28125, 7007, 31250, 6864, 28125 }, /* 25,20/1.001 MHz */
{ 25200, 4096, 25200, 6272, 28000, 6144, 25200 }, /* 25.20 MHz */
{ 27000, 4096, 27000, 6272, 30000, 6144, 27000 }, /* 27.00 MHz */
{ 27027, 4096, 27027, 6272, 30030, 6144, 27027 }, /* 27.00*1.001 MHz */
{ 54000, 4096, 54000, 6272, 60000, 6144, 54000 }, /* 54.00 MHz */
{ 54054, 4096, 54054, 6272, 60060, 6144, 54054 }, /* 54.00*1.001 MHz */
- { 74175, 11648, 210937, 17836, 234375, 11648, 140625 }, /* 74.25/1.001 MHz */
+ { 74176, 11648, 210937, 17836, 234375, 11648, 140625 }, /* 74.25/1.001 MHz */
{ 74250, 4096, 74250, 6272, 82500, 6144, 74250 }, /* 74.25 MHz */
- { 148351, 11648, 421875, 8918, 234375, 5824, 140625 }, /* 148.50/1.001 MHz */
+ { 148352, 11648, 421875, 8918, 234375, 5824, 140625 }, /* 148.50/1.001 MHz */
{ 148500, 4096, 148500, 6272, 165000, 6144, 148500 }, /* 148.50 MHz */
{ 0, 4096, 0, 6272, 0, 6144, 0 } /* Other */
};
*/
static void r600_hdmi_calc_cts(uint32_t clock, int *CTS, int N, int freq)
{
- if (*CTS == 0)
- *CTS = clock * N / (128 * freq) * 1000;
+ u64 n;
+ u32 d;
+
+ if (*CTS == 0) {
+ n = (u64)clock * (u64)N * 1000ULL;
+ d = 128 * freq;
+ do_div(n, d);
+ *CTS = n;
+ }
DRM_DEBUG("Using ACR timing N=%d CTS=%d for frequency %d\n",
N, *CTS, freq);
}
* number (coefficient of two integer numbers. DCCG_AUDIO_DTOx_PHASE
* is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator
*/
- if (ASIC_IS_DCE3(rdev)) {
- /* according to the reg specs, this should DCE3.2 only, but in
- * practice it seems to cover DCE3.0 as well.
- */
+ if (ASIC_IS_DCE32(rdev)) {
if (dig->dig_encoder == 0) {
dto_cntl = RREG32(DCCG_AUDIO_DTO0_CNTL) & ~DCCG_AUDIO_DTO_WALLCLOCK_RATIO_MASK;
dto_cntl |= DCCG_AUDIO_DTO_WALLCLOCK_RATIO(wallclock_ratio);
WREG32(DCCG_AUDIO_DTO1_MODULE, dto_modulo);
WREG32(DCCG_AUDIO_DTO_SELECT, 1); /* select DTO1 */
}
+ } else if (ASIC_IS_DCE3(rdev)) {
+ /* according to the reg specs, this should DCE3.2 only, but in
+ * practice it seems to cover DCE3.0/3.1 as well.
+ */
+ if (dig->dig_encoder == 0) {
+ WREG32(DCCG_AUDIO_DTO0_PHASE, base_rate * 100);
+ WREG32(DCCG_AUDIO_DTO0_MODULE, clock * 100);
+ WREG32(DCCG_AUDIO_DTO_SELECT, 0); /* select DTO0 */
+ } else {
+ WREG32(DCCG_AUDIO_DTO1_PHASE, base_rate * 100);
+ WREG32(DCCG_AUDIO_DTO1_MODULE, clock * 100);
+ WREG32(DCCG_AUDIO_DTO_SELECT, 1); /* select DTO1 */
+ }
} else {
- /* according to the reg specs, this should be DCE2.0 and DCE3.0 */
+ /* according to the reg specs, this should be DCE2.0 and DCE3.0/3.1 */
WREG32(AUDIO_DTO, AUDIO_DTO_PHASE(base_rate / 10) |
AUDIO_DTO_MODULE(clock / 10));
}
u8 *sadb;
int sad_count;
+ /* XXX: setting this register causes hangs on some asics */
+ return;
+
list_for_each_entry(connector, &encoder->dev->mode_config.connector_list, head) {
if (connector->encoder == encoder)
radeon_connector = to_radeon_connector(connector);
}
WREG32(HDMI0_ACR_PACKET_CONTROL + offset,
- HDMI0_ACR_AUTO_SEND | /* allow hw to sent ACR packets when required */
- HDMI0_ACR_SOURCE); /* select SW CTS value */
+ HDMI0_ACR_SOURCE | /* select SW CTS value - XXX verify that hw CTS works on all families */
+ HDMI0_ACR_AUTO_SEND); /* allow hw to sent ACR packets when required */
WREG32(HDMI0_VBI_PACKET_CONTROL + offset,
HDMI0_NULL_SEND | /* send null packets when required */
*/
# define PACKET3_CP_DMA_CP_SYNC (1 << 31)
/* COMMAND */
-# define PACKET3_CP_DMA_CMD_SRC_SWAP(x) ((x) << 23)
+# define PACKET3_CP_DMA_CMD_SRC_SWAP(x) ((x) << 22)
/* 0 - none
* 1 - 8 in 16
* 2 - 8 in 32
.wait_for_vblank = &avivo_wait_for_vblank,
.set_backlight_level = &atombios_set_backlight_level,
.get_backlight_level = &atombios_get_backlight_level,
+ .hdmi_enable = &r600_hdmi_enable,
+ .hdmi_setmode = &r600_hdmi_setmode,
},
.copy = {
.blit = &r600_copy_cpdma,
int index = GetIndexIntoMasterTable(DATA, PPLL_SS_Info);
uint16_t data_offset, size;
struct _ATOM_SPREAD_SPECTRUM_INFO *ss_info;
+ struct _ATOM_SPREAD_SPECTRUM_ASSIGNMENT *ss_assign;
uint8_t frev, crev;
int i, num_indices;
num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
sizeof(ATOM_SPREAD_SPECTRUM_ASSIGNMENT);
-
+ ss_assign = (struct _ATOM_SPREAD_SPECTRUM_ASSIGNMENT*)
+ ((u8 *)&ss_info->asSS_Info[0]);
for (i = 0; i < num_indices; i++) {
- if (ss_info->asSS_Info[i].ucSS_Id == id) {
+ if (ss_assign->ucSS_Id == id) {
ss->percentage =
- le16_to_cpu(ss_info->asSS_Info[i].usSpreadSpectrumPercentage);
- ss->type = ss_info->asSS_Info[i].ucSpreadSpectrumType;
- ss->step = ss_info->asSS_Info[i].ucSS_Step;
- ss->delay = ss_info->asSS_Info[i].ucSS_Delay;
- ss->range = ss_info->asSS_Info[i].ucSS_Range;
- ss->refdiv = ss_info->asSS_Info[i].ucRecommendedRef_Div;
+ le16_to_cpu(ss_assign->usSpreadSpectrumPercentage);
+ ss->type = ss_assign->ucSpreadSpectrumType;
+ ss->step = ss_assign->ucSS_Step;
+ ss->delay = ss_assign->ucSS_Delay;
+ ss->range = ss_assign->ucSS_Range;
+ ss->refdiv = ss_assign->ucRecommendedRef_Div;
return true;
}
+ ss_assign = (struct _ATOM_SPREAD_SPECTRUM_ASSIGNMENT*)
+ ((u8 *)ss_assign + sizeof(struct _ATOM_SPREAD_SPECTRUM_ASSIGNMENT));
}
}
return false;
struct _ATOM_ASIC_INTERNAL_SS_INFO_V3 info_3;
};
+union asic_ss_assignment {
+ struct _ATOM_ASIC_SS_ASSIGNMENT v1;
+ struct _ATOM_ASIC_SS_ASSIGNMENT_V2 v2;
+ struct _ATOM_ASIC_SS_ASSIGNMENT_V3 v3;
+};
+
bool radeon_atombios_get_asic_ss_info(struct radeon_device *rdev,
struct radeon_atom_ss *ss,
int id, u32 clock)
int index = GetIndexIntoMasterTable(DATA, ASIC_InternalSS_Info);
uint16_t data_offset, size;
union asic_ss_info *ss_info;
+ union asic_ss_assignment *ss_assign;
uint8_t frev, crev;
int i, num_indices;
num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
sizeof(ATOM_ASIC_SS_ASSIGNMENT);
+ ss_assign = (union asic_ss_assignment *)((u8 *)&ss_info->info.asSpreadSpectrum[0]);
for (i = 0; i < num_indices; i++) {
- if ((ss_info->info.asSpreadSpectrum[i].ucClockIndication == id) &&
- (clock <= le32_to_cpu(ss_info->info.asSpreadSpectrum[i].ulTargetClockRange))) {
+ if ((ss_assign->v1.ucClockIndication == id) &&
+ (clock <= le32_to_cpu(ss_assign->v1.ulTargetClockRange))) {
ss->percentage =
- le16_to_cpu(ss_info->info.asSpreadSpectrum[i].usSpreadSpectrumPercentage);
- ss->type = ss_info->info.asSpreadSpectrum[i].ucSpreadSpectrumMode;
- ss->rate = le16_to_cpu(ss_info->info.asSpreadSpectrum[i].usSpreadRateInKhz);
+ le16_to_cpu(ss_assign->v1.usSpreadSpectrumPercentage);
+ ss->type = ss_assign->v1.ucSpreadSpectrumMode;
+ ss->rate = le16_to_cpu(ss_assign->v1.usSpreadRateInKhz);
return true;
}
+ ss_assign = (union asic_ss_assignment *)
+ ((u8 *)ss_assign + sizeof(ATOM_ASIC_SS_ASSIGNMENT));
}
break;
case 2:
num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
sizeof(ATOM_ASIC_SS_ASSIGNMENT_V2);
+ ss_assign = (union asic_ss_assignment *)((u8 *)&ss_info->info_2.asSpreadSpectrum[0]);
for (i = 0; i < num_indices; i++) {
- if ((ss_info->info_2.asSpreadSpectrum[i].ucClockIndication == id) &&
- (clock <= le32_to_cpu(ss_info->info_2.asSpreadSpectrum[i].ulTargetClockRange))) {
+ if ((ss_assign->v2.ucClockIndication == id) &&
+ (clock <= le32_to_cpu(ss_assign->v2.ulTargetClockRange))) {
ss->percentage =
- le16_to_cpu(ss_info->info_2.asSpreadSpectrum[i].usSpreadSpectrumPercentage);
- ss->type = ss_info->info_2.asSpreadSpectrum[i].ucSpreadSpectrumMode;
- ss->rate = le16_to_cpu(ss_info->info_2.asSpreadSpectrum[i].usSpreadRateIn10Hz);
+ le16_to_cpu(ss_assign->v2.usSpreadSpectrumPercentage);
+ ss->type = ss_assign->v2.ucSpreadSpectrumMode;
+ ss->rate = le16_to_cpu(ss_assign->v2.usSpreadRateIn10Hz);
if ((crev == 2) &&
((id == ASIC_INTERNAL_ENGINE_SS) ||
(id == ASIC_INTERNAL_MEMORY_SS)))
ss->rate /= 100;
return true;
}
+ ss_assign = (union asic_ss_assignment *)
+ ((u8 *)ss_assign + sizeof(ATOM_ASIC_SS_ASSIGNMENT_V2));
}
break;
case 3:
num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
sizeof(ATOM_ASIC_SS_ASSIGNMENT_V3);
+ ss_assign = (union asic_ss_assignment *)((u8 *)&ss_info->info_3.asSpreadSpectrum[0]);
for (i = 0; i < num_indices; i++) {
- if ((ss_info->info_3.asSpreadSpectrum[i].ucClockIndication == id) &&
- (clock <= le32_to_cpu(ss_info->info_3.asSpreadSpectrum[i].ulTargetClockRange))) {
+ if ((ss_assign->v3.ucClockIndication == id) &&
+ (clock <= le32_to_cpu(ss_assign->v3.ulTargetClockRange))) {
ss->percentage =
- le16_to_cpu(ss_info->info_3.asSpreadSpectrum[i].usSpreadSpectrumPercentage);
- ss->type = ss_info->info_3.asSpreadSpectrum[i].ucSpreadSpectrumMode;
- ss->rate = le16_to_cpu(ss_info->info_3.asSpreadSpectrum[i].usSpreadRateIn10Hz);
+ le16_to_cpu(ss_assign->v3.usSpreadSpectrumPercentage);
+ ss->type = ss_assign->v3.ucSpreadSpectrumMode;
+ ss->rate = le16_to_cpu(ss_assign->v3.usSpreadRateIn10Hz);
if ((id == ASIC_INTERNAL_ENGINE_SS) ||
(id == ASIC_INTERNAL_MEMORY_SS))
ss->rate /= 100;
radeon_atombios_get_igp_ss_overrides(rdev, ss, id);
return true;
}
+ ss_assign = (union asic_ss_assignment *)
+ ((u8 *)ss_assign + sizeof(ATOM_ASIC_SS_ASSIGNMENT_V3));
}
break;
default:
drm_object_attach_property(&radeon_connector->base.base,
rdev->mode_info.underscan_vborder_property,
0);
- drm_object_attach_property(&radeon_connector->base.base,
- rdev->mode_info.audio_property,
- RADEON_AUDIO_DISABLE);
+ if (radeon_audio != 0)
+ drm_object_attach_property(&radeon_connector->base.base,
+ rdev->mode_info.audio_property,
+ (radeon_audio == 1) ?
+ RADEON_AUDIO_AUTO :
+ RADEON_AUDIO_DISABLE);
subpixel_order = SubPixelHorizontalRGB;
connector->interlace_allowed = true;
if (connector_type == DRM_MODE_CONNECTOR_HDMIB)
rdev->mode_info.underscan_vborder_property,
0);
}
- if (ASIC_IS_DCE2(rdev)) {
+ if (ASIC_IS_DCE2(rdev) && (radeon_audio != 0)) {
drm_object_attach_property(&radeon_connector->base.base,
- rdev->mode_info.audio_property,
- RADEON_AUDIO_DISABLE);
+ rdev->mode_info.audio_property,
+ (radeon_audio == 1) ?
+ RADEON_AUDIO_AUTO :
+ RADEON_AUDIO_DISABLE);
}
if (connector_type == DRM_MODE_CONNECTOR_DVII) {
radeon_connector->dac_load_detect = true;
rdev->mode_info.underscan_vborder_property,
0);
}
- if (ASIC_IS_DCE2(rdev)) {
+ if (ASIC_IS_DCE2(rdev) && (radeon_audio != 0)) {
drm_object_attach_property(&radeon_connector->base.base,
- rdev->mode_info.audio_property,
- RADEON_AUDIO_DISABLE);
+ rdev->mode_info.audio_property,
+ (radeon_audio == 1) ?
+ RADEON_AUDIO_AUTO :
+ RADEON_AUDIO_DISABLE);
}
subpixel_order = SubPixelHorizontalRGB;
connector->interlace_allowed = true;
rdev->mode_info.underscan_vborder_property,
0);
}
- if (ASIC_IS_DCE2(rdev)) {
+ if (ASIC_IS_DCE2(rdev) && (radeon_audio != 0)) {
drm_object_attach_property(&radeon_connector->base.base,
- rdev->mode_info.audio_property,
- RADEON_AUDIO_DISABLE);
+ rdev->mode_info.audio_property,
+ (radeon_audio == 1) ?
+ RADEON_AUDIO_AUTO :
+ RADEON_AUDIO_DISABLE);
}
connector->interlace_allowed = true;
/* in theory with a DP to VGA converter... */
VRAM, also but everything into VRAM on AGP cards to avoid
image corruptions */
if (p->ring == R600_RING_TYPE_UVD_INDEX &&
- (i == 0 || p->rdev->flags & RADEON_IS_AGP)) {
+ (i == 0 || drm_pci_device_is_agp(p->rdev->ddev))) {
/* TODO: is this still needed for NI+ ? */
p->relocs[i].lobj.domain =
RADEON_GEM_DOMAIN_VRAM;
return r;
}
if ((radeon_testing & 1)) {
- radeon_test_moves(rdev);
+ if (rdev->accel_working)
+ radeon_test_moves(rdev);
+ else
+ DRM_INFO("radeon: acceleration disabled, skipping move tests\n");
}
if ((radeon_testing & 2)) {
- radeon_test_syncing(rdev);
+ if (rdev->accel_working)
+ radeon_test_syncing(rdev);
+ else
+ DRM_INFO("radeon: acceleration disabled, skipping sync tests\n");
}
if (radeon_benchmarking) {
- radeon_benchmark(rdev, radeon_benchmarking);
+ if (rdev->accel_working)
+ radeon_benchmark(rdev, radeon_benchmarking);
+ else
+ DRM_INFO("radeon: acceleration disabled, skipping benchmarks\n");
}
return 0;
}
int radeon_testing = 0;
int radeon_connector_table = 0;
int radeon_tv = 1;
-int radeon_audio = 1;
+int radeon_audio = -1;
int radeon_disp_priority = 0;
int radeon_hw_i2c = 0;
int radeon_pcie_gen2 = -1;
MODULE_PARM_DESC(tv, "TV enable (0 = disable)");
module_param_named(tv, radeon_tv, int, 0444);
-MODULE_PARM_DESC(audio, "Audio enable (1 = enable)");
+MODULE_PARM_DESC(audio, "Audio enable (-1 = auto, 0 = disable, 1 = enable)");
module_param_named(audio, radeon_audio, int, 0444);
MODULE_PARM_DESC(disp_priority, "Display Priority (0 = auto, 1 = normal, 2 = high)");
if (enable) {
mutex_lock(&rdev->pm.mutex);
rdev->pm.dpm.uvd_active = true;
+ /* disable this for now */
+#if 0
if ((rdev->pm.dpm.sd == 1) && (rdev->pm.dpm.hd == 0))
dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_SD;
else if ((rdev->pm.dpm.sd == 2) && (rdev->pm.dpm.hd == 0))
else if ((rdev->pm.dpm.sd == 0) && (rdev->pm.dpm.hd == 2))
dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_HD2;
else
+#endif
dpm_state = POWER_STATE_TYPE_INTERNAL_UVD;
rdev->pm.dpm.state = dpm_state;
mutex_unlock(&rdev->pm.mutex);
{
/* set up the default clocks if the MC ucode is loaded */
if ((rdev->family >= CHIP_BARTS) &&
- (rdev->family <= CHIP_HAINAN) &&
+ (rdev->family <= CHIP_CAYMAN) &&
rdev->mc_fw) {
if (rdev->pm.default_vddc)
radeon_atom_set_voltage(rdev, rdev->pm.default_vddc,
if (ret) {
DRM_ERROR("radeon: dpm resume failed\n");
if ((rdev->family >= CHIP_BARTS) &&
- (rdev->family <= CHIP_HAINAN) &&
+ (rdev->family <= CHIP_CAYMAN) &&
rdev->mc_fw) {
if (rdev->pm.default_vddc)
radeon_atom_set_voltage(rdev, rdev->pm.default_vddc,
radeon_pm_init_profile(rdev);
/* set up the default clocks if the MC ucode is loaded */
if ((rdev->family >= CHIP_BARTS) &&
- (rdev->family <= CHIP_HAINAN) &&
+ (rdev->family <= CHIP_CAYMAN) &&
rdev->mc_fw) {
if (rdev->pm.default_vddc)
radeon_atom_set_voltage(rdev, rdev->pm.default_vddc,
if (ret) {
rdev->pm.dpm_enabled = false;
if ((rdev->family >= CHIP_BARTS) &&
- (rdev->family <= CHIP_HAINAN) &&
+ (rdev->family <= CHIP_CAYMAN) &&
rdev->mc_fw) {
if (rdev->pm.default_vddc)
radeon_atom_set_voltage(rdev, rdev->pm.default_vddc,
* packet that is the root issue
*/
i = (ring->rptr + ring->ptr_mask + 1 - 32) & ring->ptr_mask;
- for (j = 0; j <= (count + 32); j++) {
- seq_printf(m, "r[%5d]=0x%08x\n", i, ring->ring[i]);
- i = (i + 1) & ring->ptr_mask;
+ if (ring->ready) {
+ for (j = 0; j <= (count + 32); j++) {
+ seq_printf(m, "r[%5d]=0x%08x\n", i, ring->ring[i]);
+ i = (i + 1) & ring->ptr_mask;
+ }
}
return 0;
}
struct radeon_bo *vram_obj = NULL;
struct radeon_bo **gtt_obj = NULL;
uint64_t gtt_addr, vram_addr;
- unsigned i, n, size;
- int r, ring;
+ unsigned n, size;
+ int i, r, ring;
switch (flag) {
case RADEON_TEST_COPY_DMA:
(rdev->pm.dpm.hd != hd)) {
rdev->pm.dpm.sd = sd;
rdev->pm.dpm.hd = hd;
- streams_changed = true;
+ /* disable this for now */
+ /*streams_changed = true;*/
}
}
uint32_t incr, uint32_t flags);
static void si_enable_gui_idle_interrupt(struct radeon_device *rdev,
bool enable);
+static void si_fini_pg(struct radeon_device *rdev);
+static void si_fini_cg(struct radeon_device *rdev);
+static void si_rlc_stop(struct radeon_device *rdev);
static const u32 verde_rlc_save_restore_register_list[] =
{
fw_name);
release_firmware(rdev->smc_fw);
rdev->smc_fw = NULL;
+ err = 0;
} else if (rdev->smc_fw->size != smc_req_size) {
printk(KERN_ERR
"si_smc: Bogus length %zu in firmware \"%s\"\n",
dev_info(rdev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
RREG32(VM_CONTEXT1_PROTECTION_FAULT_STATUS));
+ /* disable PG/CG */
+ si_fini_pg(rdev);
+ si_fini_cg(rdev);
+
+ /* stop the rlc */
+ si_rlc_stop(rdev);
+
/* Disable CP parsing/prefetching */
WREG32(CP_ME_CNTL, CP_ME_HALT | CP_PFP_HALT | CP_CE_HALT);
bool disable_sclk_switching = false;
u32 mclk, sclk;
u16 vddc, vddci;
+ u32 max_sclk_vddc, max_mclk_vddci, max_mclk_vddc;
int i;
if ((rdev->pm.dpm.new_active_crtc_count > 1) ||
}
}
+ /* limit clocks to max supported clocks based on voltage dependency tables */
+ btc_get_max_clock_from_voltage_dependency_table(&rdev->pm.dpm.dyn_state.vddc_dependency_on_sclk,
+ &max_sclk_vddc);
+ btc_get_max_clock_from_voltage_dependency_table(&rdev->pm.dpm.dyn_state.vddci_dependency_on_mclk,
+ &max_mclk_vddci);
+ btc_get_max_clock_from_voltage_dependency_table(&rdev->pm.dpm.dyn_state.vddc_dependency_on_mclk,
+ &max_mclk_vddc);
+
+ for (i = 0; i < ps->performance_level_count; i++) {
+ if (max_sclk_vddc) {
+ if (ps->performance_levels[i].sclk > max_sclk_vddc)
+ ps->performance_levels[i].sclk = max_sclk_vddc;
+ }
+ if (max_mclk_vddci) {
+ if (ps->performance_levels[i].mclk > max_mclk_vddci)
+ ps->performance_levels[i].mclk = max_mclk_vddci;
+ }
+ if (max_mclk_vddc) {
+ if (ps->performance_levels[i].mclk > max_mclk_vddc)
+ ps->performance_levels[i].mclk = max_mclk_vddc;
+ }
+ }
+
/* XXX validate the min clocks required for display */
if (disable_mclk_switching) {
table->mc_reg_table_entry[k].mc_data[j] |= 0x100;
}
j++;
- if (j > SMC_SISLANDS_MC_REGISTER_ARRAY_SIZE)
+ if (j >= SMC_SISLANDS_MC_REGISTER_ARRAY_SIZE)
return -EINVAL;
if (!pi->mem_gddr5) {
table->mc_reg_table_entry[k].mc_data[j] =
(table->mc_reg_table_entry[k].mc_data[i] & 0xffff0000) >> 16;
j++;
- if (j > SMC_SISLANDS_MC_REGISTER_ARRAY_SIZE)
+ if (j >= SMC_SISLANDS_MC_REGISTER_ARRAY_SIZE)
return -EINVAL;
}
break;
(temp_reg & 0xffff0000) |
(table->mc_reg_table_entry[k].mc_data[i] & 0x0000ffff);
j++;
- if (j > SMC_SISLANDS_MC_REGISTER_ARRAY_SIZE)
+ if (j >= SMC_SISLANDS_MC_REGISTER_ARRAY_SIZE)
return -EINVAL;
break;
default:
* 6. COMMAND [30:21] | BYTE_COUNT [20:0]
*/
# define PACKET3_CP_DMA_DST_SEL(x) ((x) << 20)
- /* 0 - SRC_ADDR
+ /* 0 - DST_ADDR
* 1 - GDS
*/
# define PACKET3_CP_DMA_ENGINE(x) ((x) << 27)
# define PACKET3_CP_DMA_CP_SYNC (1 << 31)
/* COMMAND */
# define PACKET3_CP_DMA_DIS_WC (1 << 21)
-# define PACKET3_CP_DMA_CMD_SRC_SWAP(x) ((x) << 23)
+# define PACKET3_CP_DMA_CMD_SRC_SWAP(x) ((x) << 22)
/* 0 - none
* 1 - 8 in 16
* 2 - 8 in 32
for (i = 0; i < SUMO_MAX_HARDWARE_POWERLEVELS; i++)
pi->at[i] = TRINITY_AT_DFLT;
- pi->enable_bapm = true;
+ pi->enable_bapm = false;
pi->enable_nbps_policy = true;
pi->enable_sclk_ds = true;
pi->enable_gfx_power_gating = true;
struct vmw_fpriv *vmw_fp;
vmw_fp = vmw_fpriv(file_priv);
- ttm_object_file_release(&vmw_fp->tfile);
- if (vmw_fp->locked_master)
+
+ if (vmw_fp->locked_master) {
+ struct vmw_master *vmaster =
+ vmw_master(vmw_fp->locked_master);
+
+ ttm_lock_set_kill(&vmaster->lock, true, SIGTERM);
+ ttm_vt_unlock(&vmaster->lock);
drm_master_put(&vmw_fp->locked_master);
+ }
+
+ ttm_object_file_release(&vmw_fp->tfile);
kfree(vmw_fp);
}
vmw_fp->locked_master = drm_master_get(file_priv->master);
ret = ttm_vt_lock(&vmaster->lock, false, vmw_fp->tfile);
- vmw_execbuf_release_pinned_bo(dev_priv);
-
if (unlikely((ret != 0))) {
DRM_ERROR("Unable to lock TTM at VT switch.\n");
drm_master_put(&vmw_fp->locked_master);
}
- ttm_lock_set_kill(&vmaster->lock, true, SIGTERM);
+ ttm_lock_set_kill(&vmaster->lock, false, SIGTERM);
+ vmw_execbuf_release_pinned_bo(dev_priv);
if (!dev_priv->enable_fb) {
ret = ttm_bo_evict_mm(&dev_priv->bdev, TTM_PL_VRAM);
if (new_backup)
res->backup_offset = new_backup_offset;
- if (!res->func->may_evict)
+ if (!res->func->may_evict || res->id == -1)
return;
write_lock(&dev_priv->resource_lock);
- Sharkoon Drakonia / Perixx MX-2000 gaming mice
- Tracer Sniper TRM-503 / NOVA Gaming Slider X200 /
Zalman ZM-GM1
+ - SHARKOON DarkGlider Gaming mouse
config HOLTEK_FF
bool "Holtek On Line Grip force feedback support"
static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
{
- __u32 raw_value;
+ __s32 raw_value;
switch (item->tag) {
case HID_GLOBAL_ITEM_TAG_PUSH:
return 0;
case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
- /* Units exponent negative numbers are given through a
- * two's complement.
- * See "6.2.2.7 Global Items" for more information. */
- raw_value = item_udata(item);
+ /* Many devices provide unit exponent as a two's complement
+ * nibble due to the common misunderstanding of HID
+ * specification 1.11, 6.2.2.7 Global Items. Attempt to handle
+ * both this and the standard encoding. */
+ raw_value = item_sdata(item);
if (!(raw_value & 0xfffffff0))
parser->global.unit_exponent = hid_snto32(raw_value, 4);
else
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A) },
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081) },
{ HID_USB_DEVICE(USB_VENDOR_ID_HUION, USB_DEVICE_ID_HUION_580) },
{ HID_USB_DEVICE(USB_VENDOR_ID_JESS2, USB_DEVICE_ID_JESS2_COLOR_RUMBLE_PAD) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ION, USB_DEVICE_ID_ICADE) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE) },
+ { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO2, USB_DEVICE_ID_NINTENDO_WIIMOTE) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE2) },
{ }
};
* - USB ID 04d9:a067, sold as Sharkoon Drakonia and Perixx MX-2000
* - USB ID 04d9:a04a, sold as Tracer Sniper TRM-503, NOVA Gaming Slider X200
* and Zalman ZM-GM1
+ * - USB ID 04d9:a081, sold as SHARKOON DarkGlider Gaming mouse
*/
static __u8 *holtek_mouse_report_fixup(struct hid_device *hdev, __u8 *rdesc,
}
break;
case USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A:
+ case USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081:
if (*rsize >= 113 && rdesc[106] == 0xff && rdesc[107] == 0x7f
&& rdesc[111] == 0xff && rdesc[112] == 0x7f) {
hid_info(hdev, "Fixing up report descriptor\n");
USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067) },
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT,
USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT,
+ USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081) },
{ }
};
MODULE_DEVICE_TABLE(hid, holtek_mouse_devices);
#define USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD 0xa055
#define USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067 0xa067
#define USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A 0xa04a
+#define USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081 0xa081
#define USB_VENDOR_ID_IMATION 0x0718
#define USB_DEVICE_ID_DISC_STAKKA 0xd000
#define USB_DEVICE_ID_NEXTWINDOW_TOUCHSCREEN 0x0003
#define USB_VENDOR_ID_NINTENDO 0x057e
+#define USB_VENDOR_ID_NINTENDO2 0x054c
#define USB_DEVICE_ID_NINTENDO_WIIMOTE 0x0306
#define USB_DEVICE_ID_NINTENDO_WIIMOTE2 0x0330
#define USB_DEVICE_ID_SYNAPTICS_COMP_TP 0x0009
#define USB_DEVICE_ID_SYNAPTICS_WTP 0x0010
#define USB_DEVICE_ID_SYNAPTICS_DPAD 0x0013
+#define USB_DEVICE_ID_SYNAPTICS_LTS1 0x0af8
+#define USB_DEVICE_ID_SYNAPTICS_LTS2 0x1d10
#define USB_VENDOR_ID_THINGM 0x27b8
#define USB_DEVICE_ID_BLINK1 0x01ed
#define USB_VENDOR_ID_PRIMAX 0x0461
#define USB_DEVICE_ID_PRIMAX_KEYBOARD 0x4e05
+#define USB_VENDOR_ID_SIS 0x0457
+#define USB_DEVICE_ID_SIS_TS 0x1013
+
#endif
return -EINVAL;
}
+
/**
* hidinput_calc_abs_res - calculate an absolute axis resolution
* @field: the HID report field to calculate resolution for
case ABS_MT_TOOL_Y:
case ABS_MT_TOUCH_MAJOR:
case ABS_MT_TOUCH_MINOR:
- if (field->unit & 0xffffff00) /* Not a length */
- return 0;
- unit_exponent += hid_snto32(field->unit >> 4, 4) - 1;
- switch (field->unit & 0xf) {
- case 0x1: /* If centimeters */
+ if (field->unit == 0x11) { /* If centimeters */
/* Convert to millimeters */
unit_exponent += 1;
- break;
- case 0x3: /* If inches */
+ } else if (field->unit == 0x13) { /* If inches */
/* Convert to millimeters */
prev = physical_extents;
physical_extents *= 254;
if (physical_extents < prev)
return 0;
unit_exponent -= 1;
- break;
- default:
+ } else {
return 0;
}
break;
}
#define PROFILE_ATTR(number) \
static struct bin_attribute bin_attr_profile##number = { \
- .attr = { .name = "profile##number", .mode = 0660 }, \
+ .attr = { .name = "profile" #number, .mode = 0660 }, \
.size = sizeof(struct kone_profile), \
.read = kone_sysfs_read_profilex, \
.write = kone_sysfs_write_profilex, \
#define PROFILE_ATTR(number) \
static struct bin_attribute bin_attr_profile##number##_settings = { \
- .attr = { .name = "profile##number##_settings", .mode = 0440 }, \
+ .attr = { .name = "profile" #number "_settings", .mode = 0440 }, \
.size = KONEPLUS_SIZE_PROFILE_SETTINGS, \
.read = koneplus_sysfs_read_profilex_settings, \
.private = &profile_numbers[number-1], \
}; \
static struct bin_attribute bin_attr_profile##number##_buttons = { \
- .attr = { .name = "profile##number##_buttons", .mode = 0440 }, \
+ .attr = { .name = "profile" #number "_buttons", .mode = 0440 }, \
.size = KONEPLUS_SIZE_PROFILE_BUTTONS, \
.read = koneplus_sysfs_read_profilex_buttons, \
.private = &profile_numbers[number-1], \
#define PROFILE_ATTR(number) \
static struct bin_attribute bin_attr_profile##number##_settings = { \
- .attr = { .name = "profile##number##_settings", .mode = 0440 }, \
+ .attr = { .name = "profile" #number "_settings", .mode = 0440 }, \
.size = KOVAPLUS_SIZE_PROFILE_SETTINGS, \
.read = kovaplus_sysfs_read_profilex_settings, \
.private = &profile_numbers[number-1], \
}; \
static struct bin_attribute bin_attr_profile##number##_buttons = { \
- .attr = { .name = "profile##number##_buttons", .mode = 0440 }, \
+ .attr = { .name = "profile" #number "_buttons", .mode = 0440 }, \
.size = KOVAPLUS_SIZE_PROFILE_BUTTONS, \
.read = kovaplus_sysfs_read_profilex_buttons, \
.private = &profile_numbers[number-1], \
#define PROFILE_ATTR(number) \
static struct bin_attribute bin_attr_profile##number##_settings = { \
- .attr = { .name = "profile##number##_settings", .mode = 0440 }, \
+ .attr = { .name = "profile" #number "_settings", .mode = 0440 }, \
.size = PYRA_SIZE_PROFILE_SETTINGS, \
.read = pyra_sysfs_read_profilex_settings, \
.private = &profile_numbers[number-1], \
}; \
static struct bin_attribute bin_attr_profile##number##_buttons = { \
- .attr = { .name = "profile##number##_buttons", .mode = 0440 }, \
+ .attr = { .name = "profile" #number "_buttons", .mode = 0440 }, \
.size = PYRA_SIZE_PROFILE_BUTTONS, \
.read = pyra_sysfs_read_profilex_buttons, \
.private = &profile_numbers[number-1], \
goto done;
}
- if (vendor == USB_VENDOR_ID_NINTENDO) {
+ if (vendor == USB_VENDOR_ID_NINTENDO ||
+ vendor == USB_VENDOR_ID_NINTENDO2) {
if (product == USB_DEVICE_ID_NINTENDO_WIIMOTE) {
devtype = WIIMOTE_DEV_GEN10;
goto done;
static const struct hid_device_id wiimote_hid_devices[] = {
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO,
USB_DEVICE_ID_NINTENDO_WIIMOTE) },
+ { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO2,
+ USB_DEVICE_ID_NINTENDO_WIIMOTE) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO,
USB_DEVICE_ID_NINTENDO_WIIMOTE2) },
{ }
* the rumble motor, this flag shouldn't be set.
*/
+/* used by wiimod_rumble and wiipro_rumble */
+static void wiimod_rumble_worker(struct work_struct *work)
+{
+ struct wiimote_data *wdata = container_of(work, struct wiimote_data,
+ rumble_worker);
+
+ spin_lock_irq(&wdata->state.lock);
+ wiiproto_req_rumble(wdata, wdata->state.cache_rumble);
+ spin_unlock_irq(&wdata->state.lock);
+}
+
static int wiimod_rumble_play(struct input_dev *dev, void *data,
struct ff_effect *eff)
{
struct wiimote_data *wdata = input_get_drvdata(dev);
__u8 value;
- unsigned long flags;
/*
* The wiimote supports only a single rumble motor so if any magnitude
else
value = 0;
- spin_lock_irqsave(&wdata->state.lock, flags);
- wiiproto_req_rumble(wdata, value);
- spin_unlock_irqrestore(&wdata->state.lock, flags);
+ /* Locking state.lock here might deadlock with input_event() calls.
+ * schedule_work acts as barrier. Merging multiple changes is fine. */
+ wdata->state.cache_rumble = value;
+ schedule_work(&wdata->rumble_worker);
return 0;
}
static int wiimod_rumble_probe(const struct wiimod_ops *ops,
struct wiimote_data *wdata)
{
+ INIT_WORK(&wdata->rumble_worker, wiimod_rumble_worker);
+
set_bit(FF_RUMBLE, wdata->input->ffbit);
if (input_ff_create_memless(wdata->input, NULL, wiimod_rumble_play))
return -ENOMEM;
{
unsigned long flags;
+ cancel_work_sync(&wdata->rumble_worker);
+
spin_lock_irqsave(&wdata->state.lock, flags);
wiiproto_req_rumble(wdata, 0);
spin_unlock_irqrestore(&wdata->state.lock, flags);
{
struct wiimote_data *wdata = input_get_drvdata(dev);
__u8 value;
- unsigned long flags;
/*
* The wiimote supports only a single rumble motor so if any magnitude
else
value = 0;
- spin_lock_irqsave(&wdata->state.lock, flags);
- wiiproto_req_rumble(wdata, value);
- spin_unlock_irqrestore(&wdata->state.lock, flags);
+ /* Locking state.lock here might deadlock with input_event() calls.
+ * schedule_work acts as barrier. Merging multiple changes is fine. */
+ wdata->state.cache_rumble = value;
+ schedule_work(&wdata->rumble_worker);
return 0;
}
{
int ret, i;
+ INIT_WORK(&wdata->rumble_worker, wiimod_rumble_worker);
+
wdata->extension.input = input_allocate_device();
if (!wdata->extension.input)
return -ENOMEM;
if (!wdata->extension.input)
return;
+ input_unregister_device(wdata->extension.input);
+ wdata->extension.input = NULL;
+ cancel_work_sync(&wdata->rumble_worker);
+
spin_lock_irqsave(&wdata->state.lock, flags);
wiiproto_req_rumble(wdata, 0);
spin_unlock_irqrestore(&wdata->state.lock, flags);
-
- input_unregister_device(wdata->extension.input);
- wdata->extension.input = NULL;
}
static const struct wiimod_ops wiimod_pro = {
__u8 *cmd_read_buf;
__u8 cmd_read_size;
- /* calibration data */
+ /* calibration/cache data */
__u16 calib_bboard[4][3];
+ __u8 cache_rumble;
};
struct wiimote_data {
struct hid_device *hdev;
struct input_dev *input;
+ struct work_struct rumble_worker;
struct led_classdev *leds[4];
struct input_dev *accel;
struct input_dev *ir;
static void drop_ref(struct hidraw *hidraw, int exists_bit)
{
if (exists_bit) {
- hid_hw_close(hidraw->hid);
hidraw->exist = 0;
- if (hidraw->open)
+ if (hidraw->open) {
+ hid_hw_close(hidraw->hid);
wake_up_interruptible(&hidraw->wait);
+ }
} else {
--hidraw->open;
}
-
- if (!hidraw->open && !hidraw->exist) {
- device_destroy(hidraw_class, MKDEV(hidraw_major, hidraw->minor));
- hidraw_table[hidraw->minor] = NULL;
- kfree(hidraw);
+ if (!hidraw->open) {
+ if (!hidraw->exist) {
+ device_destroy(hidraw_class,
+ MKDEV(hidraw_major, hidraw->minor));
+ hidraw_table[hidraw->minor] = NULL;
+ kfree(hidraw);
+ } else {
+ /* close device for last reader */
+ hid_hw_power(hidraw->hid, PM_HINT_NORMAL);
+ hid_hw_close(hidraw->hid);
+ }
}
}
0xF7, 0xF6, 0xDF, 0x3C, 0x67, 0x42, 0x55, 0x45,
0xAD, 0x05, 0xB3, 0x0A, 0x3D, 0x89, 0x38, 0xDE,
};
- struct acpi_buffer buf = { ACPI_ALLOCATE_BUFFER, NULL };
- union acpi_object params[4], *obj;
+ union acpi_object params[4];
struct acpi_object_list input;
struct acpi_device *adev;
+ unsigned long long value;
acpi_handle handle;
handle = ACPI_HANDLE(&client->dev);
params[3].package.count = 0;
params[3].package.elements = NULL;
- if (ACPI_FAILURE(acpi_evaluate_object(handle, "_DSM", &input, &buf))) {
+ if (ACPI_FAILURE(acpi_evaluate_integer(handle, "_DSM", &input,
+ &value))) {
dev_err(&client->dev, "device _DSM execution failed\n");
return -ENODEV;
}
- obj = (union acpi_object *)buf.pointer;
- if (obj->type != ACPI_TYPE_INTEGER) {
- dev_err(&client->dev, "device _DSM returned invalid type: %d\n",
- obj->type);
- kfree(buf.pointer);
- return -EINVAL;
- }
-
- pdata->hid_descriptor_address = obj->integer.value;
+ pdata->hid_descriptor_address = value;
- kfree(buf.pointer);
return 0;
}
static struct miscdevice uhid_misc = {
.fops = &uhid_fops,
- .minor = MISC_DYNAMIC_MINOR,
+ .minor = UHID_MINOR,
.name = UHID_NAME,
};
MODULE_LICENSE("GPL");
MODULE_AUTHOR("David Herrmann <dh.herrmann@gmail.com>");
MODULE_DESCRIPTION("User-space I/O driver support for HID subsystem");
+MODULE_ALIAS_MISCDEV(UHID_MINOR);
MODULE_ALIAS("devname:" UHID_NAME);
{ USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X, HID_QUIRK_MULTI_INPUT },
{ USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X, HID_QUIRK_MULTI_INPUT },
{ USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_DUOSENSE, HID_QUIRK_NO_INIT_REPORTS },
+ { USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_LTS1, HID_QUIRK_NO_INIT_REPORTS },
+ { USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_LTS2, HID_QUIRK_NO_INIT_REPORTS },
+ { USB_VENDOR_ID_SIS, USB_DEVICE_ID_SIS_TS, HID_QUIRK_NO_INIT_REPORTS },
{ 0, 0 }
};
do {
ret = vmbus_negotiate_version(msginfo, version);
- if (ret)
+ if (ret == -ETIMEDOUT)
goto cleanup;
if (vmbus_connection.conn_state == CONNECTED)
/*
* Pre win8 version numbers used in ws2008 and ws 2008 r2 (win7)
*/
+#define WS2008_SRV_MAJOR 1
+#define WS2008_SRV_MINOR 0
+#define WS2008_SRV_VERSION (WS2008_SRV_MAJOR << 16 | WS2008_SRV_MINOR)
+
#define WIN7_SRV_MAJOR 3
#define WIN7_SRV_MINOR 0
-#define WIN7_SRV_MAJOR_MINOR (WIN7_SRV_MAJOR << 16 | WIN7_SRV_MINOR)
+#define WIN7_SRV_VERSION (WIN7_SRV_MAJOR << 16 | WIN7_SRV_MINOR)
#define WIN8_SRV_MAJOR 4
#define WIN8_SRV_MINOR 0
-#define WIN8_SRV_MAJOR_MINOR (WIN8_SRV_MAJOR << 16 | WIN8_SRV_MINOR)
+#define WIN8_SRV_VERSION (WIN8_SRV_MAJOR << 16 | WIN8_SRV_MINOR)
/*
* Global state maintained for transaction that is being processed.
struct icmsg_hdr *icmsghdrp;
struct icmsg_negotiate *negop = NULL;
+ int util_fw_version;
+ int kvp_srv_version;
if (kvp_transaction.active) {
/*
if (icmsghdrp->icmsgtype == ICMSGTYPE_NEGOTIATE) {
/*
- * We start with win8 version and if the host cannot
- * support that we use the previous version.
+ * Based on the host, select appropriate
+ * framework and service versions we will
+ * negotiate.
*/
- if (vmbus_prep_negotiate_resp(icmsghdrp, negop,
- recv_buffer, UTIL_FW_MAJOR_MINOR,
- WIN8_SRV_MAJOR_MINOR))
- goto done;
-
+ switch (vmbus_proto_version) {
+ case (VERSION_WS2008):
+ util_fw_version = UTIL_WS2K8_FW_VERSION;
+ kvp_srv_version = WS2008_SRV_VERSION;
+ break;
+ case (VERSION_WIN7):
+ util_fw_version = UTIL_FW_VERSION;
+ kvp_srv_version = WIN7_SRV_VERSION;
+ break;
+ default:
+ util_fw_version = UTIL_FW_VERSION;
+ kvp_srv_version = WIN8_SRV_VERSION;
+ }
vmbus_prep_negotiate_resp(icmsghdrp, negop,
- recv_buffer, UTIL_FW_MAJOR_MINOR,
- WIN7_SRV_MAJOR_MINOR);
+ recv_buffer, util_fw_version,
+ kvp_srv_version);
} else {
kvp_msg = (struct hv_kvp_msg *)&recv_buffer[
return;
}
-done:
icmsghdrp->icflags = ICMSGHDRFLAG_TRANSACTION
| ICMSGHDRFLAG_RESPONSE;
#define VSS_MAJOR 5
#define VSS_MINOR 0
-#define VSS_MAJOR_MINOR (VSS_MAJOR << 16 | VSS_MINOR)
+#define VSS_VERSION (VSS_MAJOR << 16 | VSS_MINOR)
if (icmsghdrp->icmsgtype == ICMSGTYPE_NEGOTIATE) {
vmbus_prep_negotiate_resp(icmsghdrp, negop,
- recv_buffer, UTIL_FW_MAJOR_MINOR,
- VSS_MAJOR_MINOR);
+ recv_buffer, UTIL_FW_VERSION,
+ VSS_VERSION);
} else {
vss_msg = (struct hv_vss_msg *)&recv_buffer[
sizeof(struct vmbuspipe_hdr) +
#include <linux/reboot.h>
#include <linux/hyperv.h>
-#define SHUTDOWN_MAJOR 3
-#define SHUTDOWN_MINOR 0
-#define SHUTDOWN_MAJOR_MINOR (SHUTDOWN_MAJOR << 16 | SHUTDOWN_MINOR)
-#define TIMESYNCH_MAJOR 3
-#define TIMESYNCH_MINOR 0
-#define TIMESYNCH_MAJOR_MINOR (TIMESYNCH_MAJOR << 16 | TIMESYNCH_MINOR)
+#define SD_MAJOR 3
+#define SD_MINOR 0
+#define SD_VERSION (SD_MAJOR << 16 | SD_MINOR)
-#define HEARTBEAT_MAJOR 3
-#define HEARTBEAT_MINOR 0
-#define HEARTBEAT_MAJOR_MINOR (HEARTBEAT_MAJOR << 16 | HEARTBEAT_MINOR)
+#define SD_WS2008_MAJOR 1
+#define SD_WS2008_VERSION (SD_WS2008_MAJOR << 16 | SD_MINOR)
+
+#define TS_MAJOR 3
+#define TS_MINOR 0
+#define TS_VERSION (TS_MAJOR << 16 | TS_MINOR)
+
+#define TS_WS2008_MAJOR 1
+#define TS_WS2008_VERSION (TS_WS2008_MAJOR << 16 | TS_MINOR)
+
+#define HB_MAJOR 3
+#define HB_MINOR 0
+#define HB_VERSION (HB_MAJOR << 16 | HB_MINOR)
+
+#define HB_WS2008_MAJOR 1
+#define HB_WS2008_VERSION (HB_WS2008_MAJOR << 16 | HB_MINOR)
+
+static int sd_srv_version;
+static int ts_srv_version;
+static int hb_srv_version;
+static int util_fw_version;
static void shutdown_onchannelcallback(void *context);
static struct hv_util_service util_shutdown = {
if (icmsghdrp->icmsgtype == ICMSGTYPE_NEGOTIATE) {
vmbus_prep_negotiate_resp(icmsghdrp, negop,
- shut_txf_buf, UTIL_FW_MAJOR_MINOR,
- SHUTDOWN_MAJOR_MINOR);
+ shut_txf_buf, util_fw_version,
+ sd_srv_version);
} else {
shutdown_msg =
(struct shutdown_msg_data *)&shut_txf_buf[
struct icmsg_hdr *icmsghdrp;
struct ictimesync_data *timedatap;
u8 *time_txf_buf = util_timesynch.recv_buffer;
+ struct icmsg_negotiate *negop = NULL;
vmbus_recvpacket(channel, time_txf_buf,
PAGE_SIZE, &recvlen, &requestid);
sizeof(struct vmbuspipe_hdr)];
if (icmsghdrp->icmsgtype == ICMSGTYPE_NEGOTIATE) {
- vmbus_prep_negotiate_resp(icmsghdrp, NULL, time_txf_buf,
- UTIL_FW_MAJOR_MINOR,
- TIMESYNCH_MAJOR_MINOR);
+ vmbus_prep_negotiate_resp(icmsghdrp, negop,
+ time_txf_buf,
+ util_fw_version,
+ ts_srv_version);
} else {
timedatap = (struct ictimesync_data *)&time_txf_buf[
sizeof(struct vmbuspipe_hdr) +
struct icmsg_hdr *icmsghdrp;
struct heartbeat_msg_data *heartbeat_msg;
u8 *hbeat_txf_buf = util_heartbeat.recv_buffer;
+ struct icmsg_negotiate *negop = NULL;
vmbus_recvpacket(channel, hbeat_txf_buf,
PAGE_SIZE, &recvlen, &requestid);
sizeof(struct vmbuspipe_hdr)];
if (icmsghdrp->icmsgtype == ICMSGTYPE_NEGOTIATE) {
- vmbus_prep_negotiate_resp(icmsghdrp, NULL,
- hbeat_txf_buf, UTIL_FW_MAJOR_MINOR,
- HEARTBEAT_MAJOR_MINOR);
+ vmbus_prep_negotiate_resp(icmsghdrp, negop,
+ hbeat_txf_buf, util_fw_version,
+ hb_srv_version);
} else {
heartbeat_msg =
(struct heartbeat_msg_data *)&hbeat_txf_buf[
goto error;
hv_set_drvdata(dev, srv);
+ /*
+ * Based on the host; initialize the framework and
+ * service version numbers we will negotiate.
+ */
+ switch (vmbus_proto_version) {
+ case (VERSION_WS2008):
+ util_fw_version = UTIL_WS2K8_FW_VERSION;
+ sd_srv_version = SD_WS2008_VERSION;
+ ts_srv_version = TS_WS2008_VERSION;
+ hb_srv_version = HB_WS2008_VERSION;
+ break;
+
+ default:
+ util_fw_version = UTIL_FW_VERSION;
+ sd_srv_version = SD_VERSION;
+ ts_srv_version = TS_VERSION;
+ hb_srv_version = HB_VERSION;
+ }
+
return 0;
error:
static int read_smc(u8 cmd, const char *key, u8 *buffer, u8 len)
{
+ u8 status, data = 0;
int i;
if (send_command(cmd) || send_argument(key)) {
return -EIO;
}
+ /* This has no effect on newer (2012) SMCs */
if (send_byte(len, APPLESMC_DATA_PORT)) {
pr_warn("%.4s: read len fail\n", key);
return -EIO;
buffer[i] = inb(APPLESMC_DATA_PORT);
}
+ /* Read the data port until bit0 is cleared */
+ for (i = 0; i < 16; i++) {
+ udelay(APPLESMC_MIN_WAIT);
+ status = inb(APPLESMC_CMD_PORT);
+ if (!(status & 0x01))
+ break;
+ data = inb(APPLESMC_DATA_PORT);
+ }
+ if (i)
+ pr_warn("flushed %d bytes, last value is: %d\n", i, data);
+
return 0;
}
{
struct applesmc_registers *s = &smcreg;
bool left_light_sensor, right_light_sensor;
+ unsigned int count;
u8 tmp[1];
int ret;
if (s->init_complete)
return 0;
- ret = read_register_count(&s->key_count);
+ ret = read_register_count(&count);
if (ret)
return ret;
+ if (s->cache && s->key_count != count) {
+ pr_warn("key count changed from %d to %d\n",
+ s->key_count, count);
+ kfree(s->cache);
+ s->cache = NULL;
+ }
+ s->key_count = count;
+
if (!s->cache)
s->cache = kcalloc(s->key_count, sizeof(*s->cache), GFP_KERNEL);
if (!s->cache)
#define DW_IC_ERR_TX_ABRT 0x1
+#define DW_IC_TAR_10BITADDR_MASTER BIT(12)
+
/*
* status codes
*/
static void i2c_dw_xfer_init(struct dw_i2c_dev *dev)
{
struct i2c_msg *msgs = dev->msgs;
- u32 ic_con;
+ u32 ic_con, ic_tar = 0;
/* Disable the adapter */
__i2c_dw_enable(dev, false);
- /* set the slave (target) address */
- dw_writel(dev, msgs[dev->msg_write_idx].addr, DW_IC_TAR);
-
/* if the slave address is ten bit address, enable 10BITADDR */
ic_con = dw_readl(dev, DW_IC_CON);
- if (msgs[dev->msg_write_idx].flags & I2C_M_TEN)
+ if (msgs[dev->msg_write_idx].flags & I2C_M_TEN) {
ic_con |= DW_IC_CON_10BITADDR_MASTER;
- else
+ /*
+ * If I2C_DYNAMIC_TAR_UPDATE is set, the 10-bit addressing
+ * mode has to be enabled via bit 12 of IC_TAR register.
+ * We set it always as I2C_DYNAMIC_TAR_UPDATE can't be
+ * detected from registers.
+ */
+ ic_tar = DW_IC_TAR_10BITADDR_MASTER;
+ } else {
ic_con &= ~DW_IC_CON_10BITADDR_MASTER;
+ }
+
dw_writel(dev, ic_con, DW_IC_CON);
+ /*
+ * Set the slave (target) address and enable 10-bit addressing mode
+ * if applicable.
+ */
+ dw_writel(dev, msgs[dev->msg_write_idx].addr | ic_tar, DW_IC_TAR);
+
/* Enable the adapter */
__i2c_dw_enable(dev, true);
MODULE_ALIAS("platform:i2c_designware");
static struct platform_driver dw_i2c_driver = {
- .remove = dw_i2c_remove,
+ .probe = dw_i2c_probe,
+ .remove = dw_i2c_remove,
.driver = {
.name = "i2c_designware",
.owner = THIS_MODULE,
static int __init dw_i2c_init_driver(void)
{
- return platform_driver_probe(&dw_i2c_driver, dw_i2c_probe);
+ return platform_driver_register(&dw_i2c_driver);
}
subsys_initcall(dw_i2c_init_driver);
clk_disable_unprepare(i2c_imx->clk);
}
-static void __init i2c_imx_set_clk(struct imx_i2c_struct *i2c_imx,
+static void i2c_imx_set_clk(struct imx_i2c_struct *i2c_imx,
unsigned int rate)
{
struct imx_i2c_clk_pair *i2c_clk_div = i2c_imx->hwdata->clk_div;
.functionality = i2c_imx_func,
};
-static int __init i2c_imx_probe(struct platform_device *pdev)
+static int i2c_imx_probe(struct platform_device *pdev)
{
const struct of_device_id *of_id = of_match_device(i2c_imx_dt_ids,
&pdev->dev);
return 0; /* Return OK */
}
-static int __exit i2c_imx_remove(struct platform_device *pdev)
+static int i2c_imx_remove(struct platform_device *pdev)
{
struct imx_i2c_struct *i2c_imx = platform_get_drvdata(pdev);
}
static struct platform_driver i2c_imx_driver = {
- .remove = __exit_p(i2c_imx_remove),
+ .probe = i2c_imx_probe,
+ .remove = i2c_imx_remove,
.driver = {
.name = DRIVER_NAME,
.owner = THIS_MODULE,
static int __init i2c_adap_imx_init(void)
{
- return platform_driver_probe(&i2c_imx_driver, i2c_imx_probe);
+ return platform_driver_register(&i2c_imx_driver);
}
subsys_initcall(i2c_adap_imx_init);
desc = &priv->hw[priv->head];
+ /* Initialize the DMA buffer */
+ memset(priv->dma_buffer, 0, sizeof(priv->dma_buffer));
+
/* Initialize the descriptor */
memset(desc, 0, sizeof(struct ismt_desc));
desc->tgtaddr_rw = ISMT_DESC_ADDR_RW(addr, read_write);
ctrl_reg |= MV64XXX_I2C_BRIDGE_CONTROL_WR |
(msg->len - 1) << MV64XXX_I2C_BRIDGE_CONTROL_TX_SIZE_SHIFT;
- writel_relaxed(data_reg_lo,
+ writel(data_reg_lo,
drv_data->reg_base + MV64XXX_I2C_REG_TX_DATA_LO);
- writel_relaxed(data_reg_hi,
+ writel(data_reg_hi,
drv_data->reg_base + MV64XXX_I2C_REG_TX_DATA_HI);
} else {
MODULE_DEVICE_TABLE(of, mv64xxx_i2c_of_match_table);
#ifdef CONFIG_OF
+#ifdef CONFIG_HAVE_CLK
static int
mv64xxx_calc_freq(const int tclk, const int n, const int m)
{
return false;
return true;
}
+#endif /* CONFIG_HAVE_CLK */
static int
mv64xxx_of_config(struct mv64xxx_i2c_data *drv_data,
struct device *dev)
{
- const struct of_device_id *device;
- struct device_node *np = dev->of_node;
- u32 bus_freq, tclk;
- int rc = 0;
-
/* CLK is mandatory when using DT to describe the i2c bus. We
* need to know tclk in order to calculate bus clock
* factors.
/* Have OF but no CLK */
return -ENODEV;
#else
+ const struct of_device_id *device;
+ struct device_node *np = dev->of_node;
+ u32 bus_freq, tclk;
+ int rc = 0;
+
if (IS_ERR(drv_data->clk)) {
rc = -ENODEV;
goto out;
.owner = THIS_MODULE,
.of_match_table = mxs_i2c_dt_ids,
},
+ .probe = mxs_i2c_probe,
.remove = mxs_i2c_remove,
};
static int __init mxs_i2c_init(void)
{
- return platform_driver_probe(&mxs_i2c_driver, mxs_i2c_probe);
+ return platform_driver_register(&mxs_i2c_driver);
}
subsys_initcall(mxs_i2c_init);
/*
* ProDB0017052: Clear ARDY bit twice
*/
+ if (stat & OMAP_I2C_STAT_ARDY)
+ omap_i2c_ack_stat(dev, OMAP_I2C_STAT_ARDY);
+
if (stat & (OMAP_I2C_STAT_ARDY | OMAP_I2C_STAT_NACK |
OMAP_I2C_STAT_AL)) {
omap_i2c_ack_stat(dev, (OMAP_I2C_STAT_RRDY |
i2c_del_adapter(&i2c->adap);
- clk_disable_unprepare(i2c->clk);
-
if (pdev->dev.of_node && IS_ERR(i2c->pctrl))
s3c24xx_i2c_dt_gpio_free(i2c);
.functionality = stu300_func,
};
-static int __init
-stu300_probe(struct platform_device *pdev)
+static int stu300_probe(struct platform_device *pdev)
{
struct stu300_dev *dev;
struct i2c_adapter *adap;
#define STU300_I2C_PM NULL
#endif
-static int __exit
-stu300_remove(struct platform_device *pdev)
+static int stu300_remove(struct platform_device *pdev)
{
struct stu300_dev *dev = platform_get_drvdata(pdev);
.pm = STU300_I2C_PM,
.of_match_table = stu300_dt_match,
},
- .remove = __exit_p(stu300_remove),
+ .probe = stu300_probe,
+ .remove = stu300_remove,
};
static int __init stu300_init(void)
{
- return platform_driver_probe(&stu300_i2c_driver, stu300_probe);
+ return platform_driver_register(&stu300_i2c_driver);
}
static void __exit stu300_exit(void)
client->flags & I2C_CLIENT_WAKE);
dev_dbg(dev, "probe\n");
+ acpi_dev_pm_attach(&client->dev, true);
status = driver->probe(client, i2c_match_id(driver->id_table, client));
if (status) {
client->driver = NULL;
i2c_set_clientdata(client, NULL);
+ acpi_dev_pm_detach(&client->dev, true);
}
return status;
}
client->driver = NULL;
i2c_set_clientdata(client, NULL);
}
+ acpi_dev_pm_detach(&client->dev, true);
return status;
}
if (ret < 0 || !info.addr)
return AE_OK;
+ adev->power.flags.ignore_parent = true;
strlcpy(info.type, dev_name(&adev->dev), sizeof(info.type));
if (!i2c_new_device(adapter, &info)) {
+ adev->power.flags.ignore_parent = false;
dev_err(&adapter->dev,
"failed to add I2C device %s from ACPI\n",
dev_name(&adev->dev));
acpi_handle handle;
acpi_status status;
+ if (!adap->dev.parent)
+ return;
+
handle = ACPI_HANDLE(adap->dev.parent);
if (!handle)
return;
arb->parent = of_find_i2c_adapter_by_node(parent_np);
if (!arb->parent) {
dev_err(dev, "Cannot find parent bus\n");
- return -EINVAL;
+ return -EPROBE_DEFER;
}
/* Actually add the mux adapter */
struct device_node *adapter_np, *child;
struct i2c_adapter *adapter;
unsigned *values, *gpios;
- int i = 0;
+ int i = 0, ret;
if (!np)
return -ENODEV;
adapter = of_find_i2c_adapter_by_node(adapter_np);
if (!adapter) {
dev_err(&pdev->dev, "Cannot find parent bus\n");
- return -ENODEV;
+ return -EPROBE_DEFER;
}
mux->data.parent = i2c_adapter_id(adapter);
put_device(&adapter->dev);
return -ENOMEM;
}
- for (i = 0; i < mux->data.n_gpios; i++)
- gpios[i] = of_get_named_gpio(np, "mux-gpios", i);
+ for (i = 0; i < mux->data.n_gpios; i++) {
+ ret = of_get_named_gpio(np, "mux-gpios", i);
+ if (ret < 0)
+ return ret;
+ gpios[i] = ret;
+ }
mux->data.gpios = gpios;
if (!parent) {
dev_err(&pdev->dev, "Parent adapter (%d) not found\n",
mux->data.parent);
- return -ENODEV;
+ return -EPROBE_DEFER;
}
mux->parent = parent;
adapter = of_find_i2c_adapter_by_node(adapter_np);
if (!adapter) {
dev_err(mux->dev, "Cannot find parent bus\n");
- return -ENODEV;
+ return -EPROBE_DEFER;
}
mux->pdata->parent_bus_num = i2c_adapter_id(adapter);
put_device(&adapter->dev);
if (!mux->parent) {
dev_err(&pdev->dev, "Parent adapter (%d) not found\n",
mux->pdata->parent_bus_num);
- ret = -ENODEV;
+ ret = -EPROBE_DEFER;
goto err;
}
* which is also the index into the MWAIT hint array.
* Thus C0 is a dummy.
*/
-static struct cpuidle_state nehalem_cstates[CPUIDLE_STATE_MAX] = {
+static struct cpuidle_state nehalem_cstates[] __initdata = {
{
.name = "C1-NHM",
.desc = "MWAIT 0x00",
.enter = NULL }
};
-static struct cpuidle_state snb_cstates[CPUIDLE_STATE_MAX] = {
+static struct cpuidle_state snb_cstates[] __initdata = {
{
.name = "C1-SNB",
.desc = "MWAIT 0x00",
.enter = NULL }
};
-static struct cpuidle_state ivb_cstates[CPUIDLE_STATE_MAX] = {
+static struct cpuidle_state ivb_cstates[] __initdata = {
{
.name = "C1-IVB",
.desc = "MWAIT 0x00",
.enter = NULL }
};
-static struct cpuidle_state hsw_cstates[CPUIDLE_STATE_MAX] = {
+static struct cpuidle_state hsw_cstates[] __initdata = {
{
.name = "C1-HSW",
.desc = "MWAIT 0x00",
.enter = NULL }
};
-static struct cpuidle_state atom_cstates[CPUIDLE_STATE_MAX] = {
+static struct cpuidle_state atom_cstates[] __initdata = {
{
.name = "C1E-ATM",
.desc = "MWAIT 0x00",
/*
* intel_idle_probe()
*/
-static int intel_idle_probe(void)
+static int __init intel_idle_probe(void)
{
unsigned int eax, ebx, ecx;
const struct x86_cpu_id *id;
* intel_idle_cpuidle_driver_init()
* allocate, initialize cpuidle_states
*/
-static int intel_idle_cpuidle_driver_init(void)
+static int __init intel_idle_cpuidle_driver_init(void)
{
int cstate;
struct cpuidle_driver *drv = &intel_idle_driver;
int num_substates, mwait_hint, mwait_cstate, mwait_substate;
if (cpuidle_state_table[cstate].enter == NULL)
- continue;
+ break;
if (cstate + 1 > max_cstate) {
printk(PREFIX "max_cstate %d reached\n", max_cstate);
iio_device_unregister(indio_dev);
- if (!IS_ERR(reg)) {
+ if (!IS_ERR(reg))
regulator_disable(reg);
- regulator_put(reg);
- }
return 0;
}
}
indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
- if (indio_dev == NULL)
- return -ENOMEM;
+ if (indio_dev == NULL) {
+ ret = -ENOMEM;
+ goto error_disable_clk;
+ }
st = iio_priv(indio_dev);
indio_dev->currentmode = INDIO_DIRECT_MODE;
if (indio_dev->setup_ops->postdisable)
indio_dev->setup_ops->postdisable(indio_dev);
+
+ if (indio_dev->available_scan_masks == NULL)
+ kfree(indio_dev->active_scan_mask);
}
int iio_update_buffers(struct iio_dev *indio_dev,
iio_device_unregister_trigger_consumer(indio_dev);
iio_device_unregister_eventset(indio_dev);
iio_device_unregister_sysfs(indio_dev);
- iio_device_unregister_debugfs(indio_dev);
ida_simple_remove(&iio_ida, indio_dev->id);
kfree(indio_dev);
if (indio_dev->chrdev.dev)
cdev_del(&indio_dev->chrdev);
+ iio_device_unregister_debugfs(indio_dev);
iio_disable_all_buffers(indio_dev);
#define ST_MAGN_NUMBER_DATA_CHANNELS 3
/* DEFAULT VALUE FOR SENSORS */
-#define ST_MAGN_DEFAULT_OUT_X_L_ADDR 0X04
-#define ST_MAGN_DEFAULT_OUT_Y_L_ADDR 0X08
-#define ST_MAGN_DEFAULT_OUT_Z_L_ADDR 0X06
+#define ST_MAGN_DEFAULT_OUT_X_H_ADDR 0X03
+#define ST_MAGN_DEFAULT_OUT_Y_H_ADDR 0X07
+#define ST_MAGN_DEFAULT_OUT_Z_H_ADDR 0X05
/* FULLSCALE */
#define ST_MAGN_FS_AVL_1300MG 1300
static const struct iio_chan_spec st_magn_16bit_channels[] = {
ST_SENSORS_LSM_CHANNELS(IIO_MAGN,
BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
- ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_LE, 16, 16,
- ST_MAGN_DEFAULT_OUT_X_L_ADDR),
+ ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_BE, 16, 16,
+ ST_MAGN_DEFAULT_OUT_X_H_ADDR),
ST_SENSORS_LSM_CHANNELS(IIO_MAGN,
BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
- ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_LE, 16, 16,
- ST_MAGN_DEFAULT_OUT_Y_L_ADDR),
+ ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_BE, 16, 16,
+ ST_MAGN_DEFAULT_OUT_Y_H_ADDR),
ST_SENSORS_LSM_CHANNELS(IIO_MAGN,
BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
- ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_LE, 16, 16,
- ST_MAGN_DEFAULT_OUT_Z_L_ADDR),
+ ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_BE, 16, 16,
+ ST_MAGN_DEFAULT_OUT_Z_H_ADDR),
IIO_CHAN_SOFT_TIMESTAMP(3)
};
libibverbs, libibcm and a hardware driver library from
<http://www.openfabrics.org/git/>.
+config INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
+ bool "Experimental and unstable ABI for userspace access to flow steering verbs"
+ depends on INFINIBAND_USER_ACCESS
+ depends on STAGING
+ ---help---
+ The final ABI for userspace access to flow steering verbs
+ has not been defined. To use the current ABI, *WHICH WILL
+ CHANGE IN THE FUTURE*, say Y here.
+
+ If unsure, say N.
+
config INFINIBAND_USER_MEM
bool
depends on INFINIBAND_USER_ACCESS != n
IB_UVERBS_DECLARE_CMD(create_xsrq);
IB_UVERBS_DECLARE_CMD(open_xrcd);
IB_UVERBS_DECLARE_CMD(close_xrcd);
+#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
IB_UVERBS_DECLARE_CMD(create_flow);
IB_UVERBS_DECLARE_CMD(destroy_flow);
+#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
#endif /* UVERBS_H */
static struct uverbs_lock_class ah_lock_class = { .name = "AH-uobj" };
static struct uverbs_lock_class srq_lock_class = { .name = "SRQ-uobj" };
static struct uverbs_lock_class xrcd_lock_class = { .name = "XRCD-uobj" };
+#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
static struct uverbs_lock_class rule_lock_class = { .name = "RULE-uobj" };
+#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
#define INIT_UDATA(udata, ibuf, obuf, ilen, olen) \
do { \
return ret ? ret : in_len;
}
+#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
static int kern_spec_to_ib_spec(struct ib_kern_spec *kern_spec,
union ib_flow_spec *ib_spec)
{
return ret ? ret : in_len;
}
+#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
static int __uverbs_create_xsrq(struct ib_uverbs_file *file,
struct ib_uverbs_create_xsrq *cmd,
[IB_USER_VERBS_CMD_CLOSE_XRCD] = ib_uverbs_close_xrcd,
[IB_USER_VERBS_CMD_CREATE_XSRQ] = ib_uverbs_create_xsrq,
[IB_USER_VERBS_CMD_OPEN_QP] = ib_uverbs_open_qp,
+#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
[IB_USER_VERBS_CMD_CREATE_FLOW] = ib_uverbs_create_flow,
[IB_USER_VERBS_CMD_DESTROY_FLOW] = ib_uverbs_destroy_flow
+#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
};
static void ib_uverbs_add_one(struct ib_device *device);
if (!(file->device->ib_dev->uverbs_cmd_mask & (1ull << hdr.command)))
return -ENOSYS;
+#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
if (hdr.command >= IB_USER_VERBS_CMD_THRESHOLD) {
struct ib_uverbs_cmd_hdr_ex hdr_ex;
(hdr_ex.out_words +
hdr_ex.provider_out_words) * 4);
} else {
+#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
if (hdr.in_words * 4 != count)
return -EINVAL;
buf + sizeof(hdr),
hdr.in_words * 4,
hdr.out_words * 4);
+#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
}
+#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
}
static int ib_uverbs_mmap(struct file *filp, struct vm_area_struct *vma)
return "C2_QP_STATE_ERROR";
default:
return "<invalid QP state>";
- };
+ }
}
void c2_ae_event(struct c2_dev *c2dev, u32 mq_index)
ibdev->ib_dev.create_flow = mlx4_ib_create_flow;
ibdev->ib_dev.destroy_flow = mlx4_ib_destroy_flow;
+#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
ibdev->ib_dev.uverbs_cmd_mask |=
(1ull << IB_USER_VERBS_CMD_CREATE_FLOW) |
(1ull << IB_USER_VERBS_CMD_DESTROY_FLOW);
+#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
}
mlx4_ib_alloc_eqs(dev, ibdev);
static int alloc_comp_eqs(struct mlx5_ib_dev *dev)
{
struct mlx5_eq_table *table = &dev->mdev.priv.eq_table;
+ char name[MLX5_MAX_EQ_NAME];
struct mlx5_eq *eq, *n;
int ncomp_vec;
int nent;
goto clean;
}
- snprintf(eq->name, MLX5_MAX_EQ_NAME, "mlx5_comp%d", i);
+ snprintf(name, MLX5_MAX_EQ_NAME, "mlx5_comp%d", i);
err = mlx5_create_map_eq(&dev->mdev, eq,
i + MLX5_EQ_VEC_COMP_BASE, nent, 0,
- eq->name,
- &dev->mdev.priv.uuari.uars[0]);
+ name, &dev->mdev.priv.uuari.uars[0]);
if (err) {
kfree(eq);
goto clean;
props->max_srq_sge = max_rq_sg - 1;
props->max_fast_reg_page_list_len = (unsigned int)-1;
props->local_ca_ack_delay = dev->mdev.caps.local_ca_ack_delay;
- props->atomic_cap = dev->mdev.caps.flags & MLX5_DEV_CAP_FLAG_ATOMIC ?
- IB_ATOMIC_HCA : IB_ATOMIC_NONE;
- props->masked_atomic_cap = IB_ATOMIC_HCA;
+ props->atomic_cap = IB_ATOMIC_NONE;
+ props->masked_atomic_cap = IB_ATOMIC_NONE;
props->max_pkeys = be16_to_cpup((__be16 *)(out_mad->data + 28));
props->max_mcast_grp = 1 << dev->mdev.caps.log_max_mcg;
props->max_mcast_qp_attach = dev->mdev.caps.max_qp_mcg;
ibev.device = &ibdev->ib_dev;
ibev.element.port_num = port;
+ if (port < 1 || port > ibdev->num_ports) {
+ mlx5_ib_warn(ibdev, "warning: event on port %d\n", port);
+ return;
+ }
+
if (ibdev->ib_active)
ib_dispatch_event(&ibev);
}
DEF_CACHE_SIZE = 10,
};
+enum {
+ MLX5_UMR_ALIGN = 2048
+};
+
static __be64 *mr_align(__be64 *ptr, int align)
{
unsigned long mask = align - 1;
static int add_keys(struct mlx5_ib_dev *dev, int c, int num)
{
- struct device *ddev = dev->ib_dev.dma_device;
struct mlx5_mr_cache *cache = &dev->cache;
struct mlx5_cache_ent *ent = &cache->ent[c];
struct mlx5_create_mkey_mbox_in *in;
struct mlx5_ib_mr *mr;
int npages = 1 << ent->order;
- int size = sizeof(u64) * npages;
int err = 0;
int i;
}
mr->order = ent->order;
mr->umred = 1;
- mr->pas = kmalloc(size + 0x3f, GFP_KERNEL);
- if (!mr->pas) {
- kfree(mr);
- err = -ENOMEM;
- goto out;
- }
- mr->dma = dma_map_single(ddev, mr_align(mr->pas, 0x40), size,
- DMA_TO_DEVICE);
- if (dma_mapping_error(ddev, mr->dma)) {
- kfree(mr->pas);
- kfree(mr);
- err = -ENOMEM;
- goto out;
- }
-
in->seg.status = 1 << 6;
in->seg.xlt_oct_size = cpu_to_be32((npages + 1) / 2);
in->seg.qpn_mkey7_0 = cpu_to_be32(0xffffff << 8);
sizeof(*in));
if (err) {
mlx5_ib_warn(dev, "create mkey failed %d\n", err);
- dma_unmap_single(ddev, mr->dma, size, DMA_TO_DEVICE);
- kfree(mr->pas);
kfree(mr);
goto out;
}
static void remove_keys(struct mlx5_ib_dev *dev, int c, int num)
{
- struct device *ddev = dev->ib_dev.dma_device;
struct mlx5_mr_cache *cache = &dev->cache;
struct mlx5_cache_ent *ent = &cache->ent[c];
struct mlx5_ib_mr *mr;
- int size;
int err;
int i;
ent->size--;
spin_unlock(&ent->lock);
err = mlx5_core_destroy_mkey(&dev->mdev, &mr->mmr);
- if (err) {
+ if (err)
mlx5_ib_warn(dev, "failed destroy mkey\n");
- } else {
- size = ALIGN(sizeof(u64) * (1 << mr->order), 0x40);
- dma_unmap_single(ddev, mr->dma, size, DMA_TO_DEVICE);
- kfree(mr->pas);
+ else
kfree(mr);
- }
}
}
static void clean_keys(struct mlx5_ib_dev *dev, int c)
{
- struct device *ddev = dev->ib_dev.dma_device;
struct mlx5_mr_cache *cache = &dev->cache;
struct mlx5_cache_ent *ent = &cache->ent[c];
struct mlx5_ib_mr *mr;
- int size;
int err;
+ cancel_delayed_work(&ent->dwork);
while (1) {
spin_lock(&ent->lock);
if (list_empty(&ent->head)) {
ent->size--;
spin_unlock(&ent->lock);
err = mlx5_core_destroy_mkey(&dev->mdev, &mr->mmr);
- if (err) {
+ if (err)
mlx5_ib_warn(dev, "failed destroy mkey\n");
- } else {
- size = ALIGN(sizeof(u64) * (1 << mr->order), 0x40);
- dma_unmap_single(ddev, mr->dma, size, DMA_TO_DEVICE);
- kfree(mr->pas);
+ else
kfree(mr);
- }
}
}
int i;
dev->cache.stopped = 1;
- destroy_workqueue(dev->cache.wq);
+ flush_workqueue(dev->cache.wq);
mlx5_mr_cache_debugfs_cleanup(dev);
for (i = 0; i < MAX_MR_CACHE_ENTRIES; i++)
clean_keys(dev, i);
+ destroy_workqueue(dev->cache.wq);
+
return 0;
}
int page_shift, int order, int access_flags)
{
struct mlx5_ib_dev *dev = to_mdev(pd->device);
+ struct device *ddev = dev->ib_dev.dma_device;
struct umr_common *umrc = &dev->umrc;
struct ib_send_wr wr, *bad;
struct mlx5_ib_mr *mr;
struct ib_sge sg;
+ int size = sizeof(u64) * npages;
int err;
int i;
if (!mr)
return ERR_PTR(-EAGAIN);
- mlx5_ib_populate_pas(dev, umem, page_shift, mr_align(mr->pas, 0x40), 1);
+ mr->pas = kmalloc(size + MLX5_UMR_ALIGN - 1, GFP_KERNEL);
+ if (!mr->pas) {
+ err = -ENOMEM;
+ goto error;
+ }
+
+ mlx5_ib_populate_pas(dev, umem, page_shift,
+ mr_align(mr->pas, MLX5_UMR_ALIGN), 1);
+
+ mr->dma = dma_map_single(ddev, mr_align(mr->pas, MLX5_UMR_ALIGN), size,
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(ddev, mr->dma)) {
+ kfree(mr->pas);
+ err = -ENOMEM;
+ goto error;
+ }
memset(&wr, 0, sizeof(wr));
wr.wr_id = (u64)(unsigned long)mr;
wait_for_completion(&mr->done);
up(&umrc->sem);
+ dma_unmap_single(ddev, mr->dma, size, DMA_TO_DEVICE);
+ kfree(mr->pas);
+
if (mr->status != IB_WC_SUCCESS) {
mlx5_ib_warn(dev, "reg umr failed\n");
err = -EFAULT;
switch (qp_type) {
case IB_QPT_XRC_INI:
- size = sizeof(struct mlx5_wqe_xrc_seg);
+ size += sizeof(struct mlx5_wqe_xrc_seg);
/* fall through */
case IB_QPT_RC:
size += sizeof(struct mlx5_wqe_ctrl_seg) +
sizeof(struct mlx5_wqe_raddr_seg);
break;
+ case IB_QPT_XRC_TGT:
+ return 0;
+
case IB_QPT_UC:
- size = sizeof(struct mlx5_wqe_ctrl_seg) +
+ size += sizeof(struct mlx5_wqe_ctrl_seg) +
sizeof(struct mlx5_wqe_raddr_seg);
break;
case IB_QPT_UD:
case IB_QPT_SMI:
case IB_QPT_GSI:
- size = sizeof(struct mlx5_wqe_ctrl_seg) +
+ size += sizeof(struct mlx5_wqe_ctrl_seg) +
sizeof(struct mlx5_wqe_datagram_seg);
break;
case MLX5_IB_QPT_REG_UMR:
- size = sizeof(struct mlx5_wqe_ctrl_seg) +
+ size += sizeof(struct mlx5_wqe_ctrl_seg) +
sizeof(struct mlx5_wqe_umr_ctrl_seg) +
sizeof(struct mlx5_mkey_seg);
break;
return wqe_size;
if (wqe_size > dev->mdev.caps.max_sq_desc_sz) {
- mlx5_ib_dbg(dev, "\n");
+ mlx5_ib_dbg(dev, "wqe_size(%d) > max_sq_desc_sz(%d)\n",
+ wqe_size, dev->mdev.caps.max_sq_desc_sz);
return -EINVAL;
}
wq_size = roundup_pow_of_two(attr->cap.max_send_wr * wqe_size);
qp->sq.wqe_cnt = wq_size / MLX5_SEND_WQE_BB;
+ if (qp->sq.wqe_cnt > dev->mdev.caps.max_wqes) {
+ mlx5_ib_dbg(dev, "wqe count(%d) exceeds limits(%d)\n",
+ qp->sq.wqe_cnt, dev->mdev.caps.max_wqes);
+ return -ENOMEM;
+ }
qp->sq.wqe_shift = ilog2(MLX5_SEND_WQE_BB);
qp->sq.max_gs = attr->cap.max_send_sge;
- qp->sq.max_post = 1 << ilog2(wq_size / wqe_size);
+ qp->sq.max_post = wq_size / wqe_size;
+ attr->cap.max_send_wr = qp->sq.max_post;
return wq_size;
}
MLX5_QP_OPTPAR_Q_KEY,
[MLX5_QP_ST_MLX] = MLX5_QP_OPTPAR_PKEY_INDEX |
MLX5_QP_OPTPAR_Q_KEY,
+ [MLX5_QP_ST_XRC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH |
+ MLX5_QP_OPTPAR_RRE |
+ MLX5_QP_OPTPAR_RAE |
+ MLX5_QP_OPTPAR_RWE |
+ MLX5_QP_OPTPAR_PKEY_INDEX,
},
},
[MLX5_QP_STATE_RTR] = {
[MLX5_QP_STATE_RTS] = {
[MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_Q_KEY,
[MLX5_QP_ST_MLX] = MLX5_QP_OPTPAR_Q_KEY,
+ [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_RWE,
+ [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_RNR_TIMEOUT |
+ MLX5_QP_OPTPAR_RWE |
+ MLX5_QP_OPTPAR_RAE |
+ MLX5_QP_OPTPAR_RRE,
},
},
};
rseg->reserved = 0;
}
-static void set_atomic_seg(struct mlx5_wqe_atomic_seg *aseg, struct ib_send_wr *wr)
-{
- if (wr->opcode == IB_WR_ATOMIC_CMP_AND_SWP) {
- aseg->swap_add = cpu_to_be64(wr->wr.atomic.swap);
- aseg->compare = cpu_to_be64(wr->wr.atomic.compare_add);
- } else if (wr->opcode == IB_WR_MASKED_ATOMIC_FETCH_AND_ADD) {
- aseg->swap_add = cpu_to_be64(wr->wr.atomic.compare_add);
- aseg->compare = cpu_to_be64(wr->wr.atomic.compare_add_mask);
- } else {
- aseg->swap_add = cpu_to_be64(wr->wr.atomic.compare_add);
- aseg->compare = 0;
- }
-}
-
-static void set_masked_atomic_seg(struct mlx5_wqe_masked_atomic_seg *aseg,
- struct ib_send_wr *wr)
-{
- aseg->swap_add = cpu_to_be64(wr->wr.atomic.swap);
- aseg->swap_add_mask = cpu_to_be64(wr->wr.atomic.swap_mask);
- aseg->compare = cpu_to_be64(wr->wr.atomic.compare_add);
- aseg->compare_mask = cpu_to_be64(wr->wr.atomic.compare_add_mask);
-}
-
static void set_datagram_seg(struct mlx5_wqe_datagram_seg *dseg,
struct ib_send_wr *wr)
{
case IB_WR_ATOMIC_CMP_AND_SWP:
case IB_WR_ATOMIC_FETCH_AND_ADD:
- set_raddr_seg(seg, wr->wr.atomic.remote_addr,
- wr->wr.atomic.rkey);
- seg += sizeof(struct mlx5_wqe_raddr_seg);
-
- set_atomic_seg(seg, wr);
- seg += sizeof(struct mlx5_wqe_atomic_seg);
-
- size += (sizeof(struct mlx5_wqe_raddr_seg) +
- sizeof(struct mlx5_wqe_atomic_seg)) / 16;
- break;
-
case IB_WR_MASKED_ATOMIC_CMP_AND_SWP:
- set_raddr_seg(seg, wr->wr.atomic.remote_addr,
- wr->wr.atomic.rkey);
- seg += sizeof(struct mlx5_wqe_raddr_seg);
-
- set_masked_atomic_seg(seg, wr);
- seg += sizeof(struct mlx5_wqe_masked_atomic_seg);
-
- size += (sizeof(struct mlx5_wqe_raddr_seg) +
- sizeof(struct mlx5_wqe_masked_atomic_seg)) / 16;
- break;
+ mlx5_ib_warn(dev, "Atomic operations are not supported yet\n");
+ err = -ENOSYS;
+ *bad_wr = wr;
+ goto out;
case IB_WR_LOCAL_INV:
next_fence = MLX5_FENCE_MODE_INITIATOR_SMALL;
mlx5_vfree(in);
if (err) {
mlx5_ib_dbg(dev, "create SRQ failed, err %d\n", err);
- goto err_srq;
+ goto err_usr_kern_srq;
}
mlx5_ib_dbg(dev, "create SRQ with srqn 0x%x\n", srq->msrq.srqn);
err_core:
mlx5_core_destroy_srq(&dev->mdev, &srq->msrq);
+
+err_usr_kern_srq:
if (pd->uobject)
destroy_srq_user(pd, srq);
else
mthca_warn(dev, "Unhandled event %02x(%02x) on EQ %d\n",
eqe->type, eqe->subtype, eq->eqn);
break;
- };
+ }
set_eqe_hw(eqe);
++eq->cons_index;
return IB_QPS_SQE;
case OCRDMA_QPS_ERR:
return IB_QPS_ERR;
- };
+ }
return IB_QPS_ERR;
}
return OCRDMA_QPS_SQE;
case IB_QPS_ERR:
return OCRDMA_QPS_ERR;
- };
+ }
return OCRDMA_QPS_ERR;
}
break;
default:
return -EINVAL;
- };
+ }
cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_CREATE_QP, sizeof(*cmd));
if (!cmd)
case BE_DEV_DOWN:
ocrdma_close(dev);
break;
- };
+ }
}
static struct ocrdma_driver ocrdma_drv = {
/* Unsupported */
*ib_speed = IB_SPEED_SDR;
*ib_width = IB_WIDTH_1X;
- };
+ }
}
default:
ibwc_status = IB_WC_GENERAL_ERR;
break;
- };
+ }
return ibwc_status;
}
pr_err("%s() invalid opcode received = 0x%x\n",
__func__, hdr->cw & OCRDMA_WQE_OPCODE_MASK);
break;
- };
+ }
}
static void ocrdma_set_cqe_status_flushed(struct ocrdma_qp *qp,
pr_debug("Entering isert_connect_release(): >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n");
- if (device->use_frwr)
+ if (device && device->use_frwr)
isert_conn_free_frwr_pool(isert_conn);
if (isert_conn->conn_qp) {
int resp_data_len;
int resp_len;
- resp_data_len = (rsp_code == SRP_TSK_MGMT_SUCCESS) ? 0 : 4;
+ resp_data_len = 4;
resp_len = sizeof(*srp_rsp) + resp_data_len;
srp_rsp = ioctx->ioctx.buf;
+ atomic_xchg(&ch->req_lim_delta, 0));
srp_rsp->tag = tag;
- if (rsp_code != SRP_TSK_MGMT_SUCCESS) {
- srp_rsp->flags |= SRP_RSP_FLAG_RSPVALID;
- srp_rsp->resp_data_len = cpu_to_be32(resp_data_len);
- srp_rsp->data[3] = rsp_code;
- }
+ srp_rsp->flags |= SRP_RSP_FLAG_RSPVALID;
+ srp_rsp->resp_data_len = cpu_to_be32(resp_data_len);
+ srp_rsp->data[3] = rsp_code;
return resp_len;
}
transport_deregister_session(se_sess);
ch->sess = NULL;
+ ib_destroy_cm_id(ch->cm_id);
+
srpt_destroy_ch_ib(ch);
srpt_free_ioctx_ring((struct srpt_ioctx **)ch->ioctx_ring,
list_del(&ch->list);
spin_unlock_irq(&sdev->spinlock);
- ib_destroy_cm_id(ch->cm_id);
-
if (ch->release_done)
complete(ch->release_done);
select PCI_PRI
select PCI_PASID
select IOMMU_API
- depends on X86_64 && PCI && ACPI && X86_IO_APIC
+ depends on X86_64 && PCI && ACPI
---help---
With this option you can enable support for AMD IOMMU hardware in
your system. An IOMMU is a hardware component which provides
u32 cbar;
pgd_t *pgd;
};
+#define INVALID_IRPTNDX 0xff
#define ARM_SMMU_CB_ASID(cfg) ((cfg)->cbndx)
#define ARM_SMMU_CB_VMID(cfg) ((cfg)->cbndx + 1)
if (IS_ERR_VALUE(ret)) {
dev_err(smmu->dev, "failed to request context IRQ %d (%u)\n",
root_cfg->irptndx, irq);
- root_cfg->irptndx = -1;
+ root_cfg->irptndx = INVALID_IRPTNDX;
goto out_free_context;
}
writel_relaxed(0, cb_base + ARM_SMMU_CB_SCTLR);
arm_smmu_tlb_inv_context(root_cfg);
- if (root_cfg->irptndx != -1) {
+ if (root_cfg->irptndx != INVALID_IRPTNDX) {
irq = smmu->irqs[smmu->num_global_irqs + root_cfg->irptndx];
free_irq(irq, domain);
}
goto out_put_parent;
}
- arm_smmu_device_reset(smmu);
-
for (i = 0; i < smmu->num_global_irqs; ++i) {
err = request_irq(smmu->irqs[i],
arm_smmu_global_fault,
spin_lock(&arm_smmu_devices_lock);
list_add(&smmu->list, &arm_smmu_devices);
spin_unlock(&arm_smmu_devices_lock);
+
+ arm_smmu_device_reset(smmu);
return 0;
out_free_irqs:
return ret;
/* Oh, for a proper bus abstraction */
- if (!iommu_present(&platform_bus_type));
+ if (!iommu_present(&platform_bus_type))
bus_set_iommu(&platform_bus_type, &arm_smmu_ops);
- if (!iommu_present(&amba_bustype));
+ if (!iommu_present(&amba_bustype))
bus_set_iommu(&amba_bustype, &arm_smmu_ops);
return 0;
*/
atomic_t has_dirty;
- struct ratelimit writeback_rate;
+ struct bch_ratelimit writeback_rate;
struct delayed_work writeback_rate_update;
/*
*/
sector_t last_read;
- /* Number of writeback bios in flight */
- atomic_t in_flight;
+ /* Limit number of writeback bios in flight */
+ struct semaphore in_flight;
struct closure_with_timer writeback;
- struct closure_waitlist writeback_wait;
struct keybuf writeback_keys;
/* Mergesort */
+static void sort_key_next(struct btree_iter *iter,
+ struct btree_iter_set *i)
+{
+ i->k = bkey_next(i->k);
+
+ if (i->k == i->end)
+ *i = iter->data[--iter->used];
+}
+
static void btree_sort_fixup(struct btree_iter *iter)
{
while (iter->used > 1) {
struct btree_iter_set *top = iter->data, *i = top + 1;
- struct bkey *k;
if (iter->used > 2 &&
btree_iter_cmp(i[0], i[1]))
i++;
- for (k = i->k;
- k != i->end && bkey_cmp(top->k, &START_KEY(k)) > 0;
- k = bkey_next(k))
- if (top->k > i->k)
- __bch_cut_front(top->k, k);
- else if (KEY_SIZE(k))
- bch_cut_back(&START_KEY(k), top->k);
-
- if (top->k < i->k || k == i->k)
+ if (bkey_cmp(top->k, &START_KEY(i->k)) <= 0)
break;
- heap_sift(iter, i - top, btree_iter_cmp);
+ if (!KEY_SIZE(i->k)) {
+ sort_key_next(iter, i);
+ heap_sift(iter, i - top, btree_iter_cmp);
+ continue;
+ }
+
+ if (top->k > i->k) {
+ if (bkey_cmp(top->k, i->k) >= 0)
+ sort_key_next(iter, i);
+ else
+ bch_cut_front(top->k, i->k);
+
+ heap_sift(iter, i - top, btree_iter_cmp);
+ } else {
+ /* can't happen because of comparison func */
+ BUG_ON(!bkey_cmp(&START_KEY(top->k), &START_KEY(i->k)));
+ bch_cut_back(&START_KEY(i->k), top->k);
+ }
}
}
return;
err:
- bch_cache_set_error(b->c, "io error reading bucket %lu",
+ bch_cache_set_error(b->c, "io error reading bucket %zu",
PTR_BUCKET_NR(b->c, &b->key, 0));
}
return SHRINK_STOP;
/* Return -1 if we can't do anything right now */
- if (sc->gfp_mask & __GFP_WAIT)
+ if (sc->gfp_mask & __GFP_IO)
mutex_lock(&c->bucket_lock);
else if (!mutex_trylock(&c->bucket_lock))
return -1;
bitmap_zero(bitmap, SB_JOURNAL_BUCKETS);
pr_debug("%u journal buckets", ca->sb.njournal_buckets);
- /* Read journal buckets ordered by golden ratio hash to quickly
+ /*
+ * Read journal buckets ordered by golden ratio hash to quickly
* find a sequence of buckets with valid journal entries
*/
for (i = 0; i < ca->sb.njournal_buckets; i++) {
goto bsearch;
}
- /* If that fails, check all the buckets we haven't checked
+ /*
+ * If that fails, check all the buckets we haven't checked
* already
*/
pr_debug("falling back to linear search");
- for (l = 0; l < ca->sb.njournal_buckets; l++) {
- if (test_bit(l, bitmap))
- continue;
-
+ for (l = find_first_zero_bit(bitmap, ca->sb.njournal_buckets);
+ l < ca->sb.njournal_buckets;
+ l = find_next_zero_bit(bitmap, ca->sb.njournal_buckets, l + 1))
if (read_bucket(l))
goto bsearch;
- }
+
+ if (list_empty(list))
+ continue;
bsearch:
/* Binary search */
m = r = find_next_bit(bitmap, ca->sb.njournal_buckets, l + 1);
r = m;
}
- /* Read buckets in reverse order until we stop finding more
+ /*
+ * Read buckets in reverse order until we stop finding more
* journal entries
*/
- pr_debug("finishing up");
+ pr_debug("finishing up: m %u njournal_buckets %u",
+ m, ca->sb.njournal_buckets);
l = m;
while (1) {
}
}
- c->journal.seq = list_entry(list->prev,
- struct journal_replay,
- list)->j.seq;
+ if (!list_empty(list))
+ c->journal.seq = list_entry(list->prev,
+ struct journal_replay,
+ list)->j.seq;
return 0;
#undef read_bucket
return;
}
- switch (atomic_read(&ja->discard_in_flight) == DISCARD_IN_FLIGHT) {
+ switch (atomic_read(&ja->discard_in_flight)) {
case DISCARD_IN_FLIGHT:
return;
if (cl)
BUG_ON(!closure_wait(&w->wait, cl));
+ closure_flush(&c->journal.io);
__journal_try_write(c, true);
}
}
closure_bio_submit(bio, cl, s->d);
} else {
bch_writeback_add(dc);
+ s->op.cache_bio = bio;
- if (s->op.flush_journal) {
+ if (bio->bi_rw & REQ_FLUSH) {
/* Also need to send a flush to the backing device */
- s->op.cache_bio = bio_clone_bioset(bio, GFP_NOIO,
- dc->disk.bio_split);
-
- bio->bi_size = 0;
- bio->bi_vcnt = 0;
- closure_bio_submit(bio, cl, s->d);
- } else {
- s->op.cache_bio = bio;
+ struct bio *flush = bio_alloc_bioset(GFP_NOIO, 0,
+ dc->disk.bio_split);
+
+ flush->bi_rw = WRITE_FLUSH;
+ flush->bi_bdev = bio->bi_bdev;
+ flush->bi_end_io = request_endio;
+ flush->bi_private = cl;
+
+ closure_bio_submit(flush, cl, s->d);
}
}
out:
}
if (attr == &sysfs_label) {
- /* note: endlines are preserved */
- memcpy(dc->sb.label, buf, SB_LABEL_SIZE);
+ if (size > SB_LABEL_SIZE)
+ return -EINVAL;
+ memcpy(dc->sb.label, buf, size);
+ if (size < SB_LABEL_SIZE)
+ dc->sb.label[size] = '\0';
+ if (size && dc->sb.label[size - 1] == '\n')
+ dc->sb.label[size - 1] = '\0';
bch_write_bdev_super(dc, NULL);
if (dc->disk.c) {
memcpy(dc->disk.c->uuids[dc->disk.id].label,
stats->last = now ?: 1;
}
-unsigned bch_next_delay(struct ratelimit *d, uint64_t done)
+/**
+ * bch_next_delay() - increment @d by the amount of work done, and return how
+ * long to delay until the next time to do some work.
+ *
+ * @d - the struct bch_ratelimit to update
+ * @done - the amount of work done, in arbitrary units
+ *
+ * Returns the amount of time to delay by, in jiffies
+ */
+uint64_t bch_next_delay(struct bch_ratelimit *d, uint64_t done)
{
uint64_t now = local_clock();
(ewma) >> factor; \
})
-struct ratelimit {
+struct bch_ratelimit {
+ /* Next time we want to do some work, in nanoseconds */
uint64_t next;
+
+ /*
+ * Rate at which we want to do work, in units per nanosecond
+ * The units here correspond to the units passed to bch_next_delay()
+ */
unsigned rate;
};
-static inline void ratelimit_reset(struct ratelimit *d)
+static inline void bch_ratelimit_reset(struct bch_ratelimit *d)
{
d->next = local_clock();
}
-unsigned bch_next_delay(struct ratelimit *d, uint64_t done);
+uint64_t bch_next_delay(struct bch_ratelimit *d, uint64_t done);
#define __DIV_SAFE(n, d, zero) \
({ \
static unsigned writeback_delay(struct cached_dev *dc, unsigned sectors)
{
+ uint64_t ret;
+
if (atomic_read(&dc->disk.detaching) ||
!dc->writeback_percent)
return 0;
- return bch_next_delay(&dc->writeback_rate, sectors * 10000000ULL);
+ ret = bch_next_delay(&dc->writeback_rate, sectors * 10000000ULL);
+
+ return min_t(uint64_t, ret, HZ);
}
/* Background writeback */
up_write(&dc->writeback_lock);
- ratelimit_reset(&dc->writeback_rate);
+ bch_ratelimit_reset(&dc->writeback_rate);
/* Punt to workqueue only so we don't recurse and blow the stack */
continue_at(cl, read_dirty, dirty_wq);
}
bch_keybuf_del(&dc->writeback_keys, w);
- atomic_dec_bug(&dc->in_flight);
-
- closure_wake_up(&dc->writeback_wait);
+ up(&dc->in_flight);
closure_return_with_destructor(cl, dirty_io_destructor);
}
closure_bio_submit(&io->bio, cl, &io->dc->disk);
- continue_at(cl, write_dirty_finish, dirty_wq);
+ continue_at(cl, write_dirty_finish, system_wq);
}
static void read_dirty_endio(struct bio *bio, int error)
closure_bio_submit(&io->bio, cl, &io->dc->disk);
- continue_at(cl, write_dirty, dirty_wq);
+ continue_at(cl, write_dirty, system_wq);
}
static void read_dirty(struct closure *cl)
if (delay > 0 &&
(KEY_START(&w->key) != dc->last_read ||
- jiffies_to_msecs(delay) > 50)) {
- w->private = NULL;
-
- closure_delay(&dc->writeback, delay);
- continue_at(cl, read_dirty, dirty_wq);
- }
+ jiffies_to_msecs(delay) > 50))
+ delay = schedule_timeout_uninterruptible(delay);
dc->last_read = KEY_OFFSET(&w->key);
trace_bcache_writeback(&w->key);
- closure_call(&io->cl, read_dirty_submit, NULL, &dc->disk.cl);
+ down(&dc->in_flight);
+ closure_call(&io->cl, read_dirty_submit, NULL, cl);
delay = writeback_delay(dc, KEY_SIZE(&w->key));
-
- atomic_inc(&dc->in_flight);
-
- if (!closure_wait_event(&dc->writeback_wait, cl,
- atomic_read(&dc->in_flight) < 64))
- continue_at(cl, read_dirty, dirty_wq);
}
if (0) {
bch_keybuf_del(&dc->writeback_keys, w);
}
- refill_dirty(cl);
+ /*
+ * Wait for outstanding writeback IOs to finish (and keybuf slots to be
+ * freed) before refilling again
+ */
+ continue_at(cl, refill_dirty, dirty_wq);
}
/* Init */
void bch_cached_dev_writeback_init(struct cached_dev *dc)
{
+ sema_init(&dc->in_flight, 64);
closure_init_unlocked(&dc->writeback);
init_rwsem(&dc->writeback_lock);
int __init bch_writeback_init(void)
{
- dirty_wq = create_singlethread_workqueue("bcache_writeback");
+ dirty_wq = create_workqueue("bcache_writeback");
if (!dirty_wq)
return -ENOMEM;
#define DM_MSG_PREFIX "io"
#define DM_IO_MAX_REGIONS BITS_PER_LONG
-#define MIN_IOS 16
-#define MIN_BIOS 16
struct dm_io_client {
mempool_t *pool;
struct dm_io_client *dm_io_client_create(void)
{
struct dm_io_client *client;
+ unsigned min_ios = dm_get_reserved_bio_based_ios();
client = kmalloc(sizeof(*client), GFP_KERNEL);
if (!client)
return ERR_PTR(-ENOMEM);
- client->pool = mempool_create_slab_pool(MIN_IOS, _dm_io_cache);
+ client->pool = mempool_create_slab_pool(min_ios, _dm_io_cache);
if (!client->pool)
goto bad;
- client->bios = bioset_create(MIN_BIOS, 0);
+ client->bios = bioset_create(min_ios, 0);
if (!client->bios)
goto bad;
#include <linux/device-mapper.h>
+#include "dm.h"
#include "dm-path-selector.h"
#include "dm-uevent.h"
typedef int (*action_fn) (struct pgpath *pgpath);
-#define MIN_IOS 256 /* Mempool size */
-
static struct kmem_cache *_mpio_cache;
static struct workqueue_struct *kmultipathd, *kmpath_handlerd;
static struct multipath *alloc_multipath(struct dm_target *ti)
{
struct multipath *m;
+ unsigned min_ios = dm_get_reserved_rq_based_ios();
m = kzalloc(sizeof(*m), GFP_KERNEL);
if (m) {
INIT_WORK(&m->trigger_event, trigger_event);
init_waitqueue_head(&m->pg_init_wait);
mutex_init(&m->work_mutex);
- m->mpio_pool = mempool_create_slab_pool(MIN_IOS, _mpio_cache);
+ m->mpio_pool = mempool_create_slab_pool(min_ios, _mpio_cache);
if (!m->mpio_pool) {
kfree(m);
return NULL;
case -EREMOTEIO:
case -EILSEQ:
case -ENODATA:
+ case -ENOSPC:
return 1;
}
if (!error && !clone->errors)
return 0; /* I/O complete */
- if (noretry_error(error))
+ if (noretry_error(error)) {
+ if ((clone->cmd_flags & REQ_WRITE_SAME) &&
+ !clone->q->limits.max_write_same_sectors) {
+ struct queue_limits *limits;
+
+ /* device doesn't really support WRITE SAME, disable it */
+ limits = dm_get_queue_limits(dm_table_get_md(m->ti->table));
+ limits->max_write_same_sectors = 0;
+ }
return error;
+ }
if (mpio->pgpath)
fail_path(mpio->pgpath);
*/
INIT_WORK_ONSTACK(&req.work, do_metadata);
queue_work(ps->metadata_wq, &req.work);
- flush_work(&req.work);
+ flush_workqueue(ps->metadata_wq);
return req.result;
}
return NUM_SNAPSHOT_HDR_CHUNKS + ((ps->exceptions_per_area + 1) * area);
}
+static void skip_metadata(struct pstore *ps)
+{
+ uint32_t stride = ps->exceptions_per_area + 1;
+ chunk_t next_free = ps->next_free;
+ if (sector_div(next_free, stride) == NUM_SNAPSHOT_HDR_CHUNKS)
+ ps->next_free++;
+}
+
/*
* Read or write a metadata area. Remembering to skip the first
* chunk which holds the header.
ps->current_area--;
+ skip_metadata(ps);
+
return 0;
}
struct dm_exception *e)
{
struct pstore *ps = get_info(store);
- uint32_t stride;
- chunk_t next_free;
sector_t size = get_dev_size(dm_snap_cow(store->snap)->bdev);
/* Is there enough room ? */
* Move onto the next free pending, making sure to take
* into account the location of the metadata chunks.
*/
- stride = (ps->exceptions_per_area + 1);
- next_free = ++ps->next_free;
- if (sector_div(next_free, stride) == 1)
- ps->next_free++;
+ ps->next_free++;
+ skip_metadata(ps);
atomic_inc(&ps->pending_count);
return 0;
*/
static int init_hash_tables(struct dm_snapshot *s)
{
- sector_t hash_size, cow_dev_size, origin_dev_size, max_buckets;
+ sector_t hash_size, cow_dev_size, max_buckets;
/*
* Calculate based on the size of the original volume or
* the COW volume...
*/
cow_dev_size = get_dev_size(s->cow->bdev);
- origin_dev_size = get_dev_size(s->origin->bdev);
max_buckets = calc_max_buckets();
- hash_size = min(origin_dev_size, cow_dev_size) >> s->store->chunk_shift;
+ hash_size = cow_dev_size >> s->store->chunk_shift;
hash_size = min(hash_size, max_buckets);
if (hash_size < 64)
struct dm_stat_percpu *p;
/*
- * For strict correctness we should use local_irq_disable/enable
+ * For strict correctness we should use local_irq_save/restore
* instead of preempt_disable/enable.
*
- * This is racy if the driver finishes bios from non-interrupt
- * context as well as from interrupt context or from more different
- * interrupts.
+ * preempt_disable/enable is racy if the driver finishes bios
+ * from non-interrupt context as well as from interrupt context
+ * or from more different interrupts.
*
- * However, the race only results in not counting some events,
- * so it is acceptable.
+ * On 64-bit architectures the race only results in not counting some
+ * events, so it is acceptable. On 32-bit architectures the race could
+ * cause the counter going off by 2^32, so we need to do proper locking
+ * there.
*
* part_stat_lock()/part_stat_unlock() have this race too.
*/
+#if BITS_PER_LONG == 32
+ unsigned long flags;
+ local_irq_save(flags);
+#else
preempt_disable();
+#endif
p = &s->stat_percpu[smp_processor_id()][entry];
if (!end) {
p->ticks[idx] += duration;
}
+#if BITS_PER_LONG == 32
+ local_irq_restore(flags);
+#else
preempt_enable();
+#endif
}
static void __dm_stat_bio(struct dm_stat *s, unsigned long bi_rw,
* them down to the data device. The thin device's discard
* processing will cause mappings to be removed from the btree.
*/
+ ti->discard_zeroes_data_unsupported = true;
if (pf.discard_enabled && pf.discard_passdown) {
ti->num_discard_bios = 1;
* thin devices' discard limits consistent).
*/
ti->discards_supported = true;
- ti->discard_zeroes_data_unsupported = true;
}
ti->private = pt;
* They get transferred to the live pool in bind_control_target()
* called from pool_preresume().
*/
- if (!pt->adjusted_pf.discard_enabled)
+ if (!pt->adjusted_pf.discard_enabled) {
+ /*
+ * Must explicitly disallow stacking discard limits otherwise the
+ * block layer will stack them if pool's data device has support.
+ * QUEUE_FLAG_DISCARD wouldn't be set but there is no way for the
+ * user to see that, so make sure to set all discard limits to 0.
+ */
+ limits->discard_granularity = 0;
return;
+ }
disable_passdown_if_not_supported(pt);
ti->per_bio_data_size = sizeof(struct dm_thin_endio_hook);
/* In case the pool supports discards, pass them on. */
+ ti->discard_zeroes_data_unsupported = true;
if (tc->pool->pf.discard_enabled) {
ti->discards_supported = true;
ti->num_discard_bios = 1;
- ti->discard_zeroes_data_unsupported = true;
/* Discard bios must be split on a block boundary */
ti->split_discard_bios = true;
}
struct bio_set *bs;
};
-#define MIN_IOS 256
+#define RESERVED_BIO_BASED_IOS 16
+#define RESERVED_REQUEST_BASED_IOS 256
+#define RESERVED_MAX_IOS 1024
static struct kmem_cache *_io_cache;
static struct kmem_cache *_rq_tio_cache;
+/*
+ * Bio-based DM's mempools' reserved IOs set by the user.
+ */
+static unsigned reserved_bio_based_ios = RESERVED_BIO_BASED_IOS;
+
+/*
+ * Request-based DM's mempools' reserved IOs set by the user.
+ */
+static unsigned reserved_rq_based_ios = RESERVED_REQUEST_BASED_IOS;
+
+static unsigned __dm_get_reserved_ios(unsigned *reserved_ios,
+ unsigned def, unsigned max)
+{
+ unsigned ios = ACCESS_ONCE(*reserved_ios);
+ unsigned modified_ios = 0;
+
+ if (!ios)
+ modified_ios = def;
+ else if (ios > max)
+ modified_ios = max;
+
+ if (modified_ios) {
+ (void)cmpxchg(reserved_ios, ios, modified_ios);
+ ios = modified_ios;
+ }
+
+ return ios;
+}
+
+unsigned dm_get_reserved_bio_based_ios(void)
+{
+ return __dm_get_reserved_ios(&reserved_bio_based_ios,
+ RESERVED_BIO_BASED_IOS, RESERVED_MAX_IOS);
+}
+EXPORT_SYMBOL_GPL(dm_get_reserved_bio_based_ios);
+
+unsigned dm_get_reserved_rq_based_ios(void)
+{
+ return __dm_get_reserved_ios(&reserved_rq_based_ios,
+ RESERVED_REQUEST_BASED_IOS, RESERVED_MAX_IOS);
+}
+EXPORT_SYMBOL_GPL(dm_get_reserved_rq_based_ios);
+
static int __init local_init(void)
{
int r = -ENOMEM;
return md->immutable_target_type;
}
+/*
+ * The queue_limits are only valid as long as you have a reference
+ * count on 'md'.
+ */
+struct queue_limits *dm_get_queue_limits(struct mapped_device *md)
+{
+ BUG_ON(!atomic_read(&md->holders));
+ return &md->queue->limits;
+}
+EXPORT_SYMBOL_GPL(dm_get_queue_limits);
+
/*
* Fully initialize a request-based queue (->elevator, ->request_fn, etc).
*/
if (type == DM_TYPE_BIO_BASED) {
cachep = _io_cache;
- pool_size = 16;
+ pool_size = dm_get_reserved_bio_based_ios();
front_pad = roundup(per_bio_data_size, __alignof__(struct dm_target_io)) + offsetof(struct dm_target_io, clone);
} else if (type == DM_TYPE_REQUEST_BASED) {
cachep = _rq_tio_cache;
- pool_size = MIN_IOS;
+ pool_size = dm_get_reserved_rq_based_ios();
front_pad = offsetof(struct dm_rq_clone_bio_info, clone);
/* per_bio_data_size is not used. See __bind_mempools(). */
WARN_ON(per_bio_data_size != 0);
} else
goto out;
- pools->io_pool = mempool_create_slab_pool(MIN_IOS, cachep);
+ pools->io_pool = mempool_create_slab_pool(pool_size, cachep);
if (!pools->io_pool)
goto out;
module_param(major, uint, 0);
MODULE_PARM_DESC(major, "The major number of the device mapper");
+
+module_param(reserved_bio_based_ios, uint, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(reserved_bio_based_ios, "Reserved IOs in bio-based mempools");
+
+module_param(reserved_rq_based_ios, uint, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(reserved_rq_based_ios, "Reserved IOs in request-based mempools");
+
MODULE_DESCRIPTION(DM_NAME " driver");
MODULE_AUTHOR("Joe Thornber <dm-devel@redhat.com>");
MODULE_LICENSE("GPL");
/*
* Helpers that are used by DM core
*/
+unsigned dm_get_reserved_bio_based_ios(void);
+unsigned dm_get_reserved_rq_based_ios(void);
+
static inline bool dm_message_test_buffer_overflow(char *result, unsigned maxlen)
{
return !maxlen || strlen(result) + 1 >= maxlen;
u64 *p;
int lo, hi;
int rv = 1;
+ unsigned long flags;
if (bb->shift < 0)
/* badblocks are disabled */
sectors = next - s;
}
- write_seqlock_irq(&bb->lock);
+ write_seqlock_irqsave(&bb->lock, flags);
p = bb->page;
lo = 0;
bb->changed = 1;
if (!acknowledged)
bb->unacked_exist = 1;
- write_sequnlock_irq(&bb->lock);
+ write_sequnlock_irqrestore(&bb->lock, flags);
return rv;
}
}
}
if (rdev
+ && rdev->recovery_offset == MaxSector
&& !test_bit(Faulty, &rdev->flags)
&& !test_and_set_bit(In_sync, &rdev->flags)) {
count++;
}
sysfs_notify_dirent_safe(tmp->replacement->sysfs_state);
} else if (tmp->rdev
+ && tmp->rdev->recovery_offset == MaxSector
&& !test_bit(Faulty, &tmp->rdev->flags)
&& !test_and_set_bit(In_sync, &tmp->rdev->flags)) {
count++;
bi->bi_io_vec[0].bv_len = STRIPE_SIZE;
bi->bi_io_vec[0].bv_offset = 0;
bi->bi_size = STRIPE_SIZE;
+ /*
+ * If this is discard request, set bi_vcnt 0. We don't
+ * want to confuse SCSI because SCSI will replace payload
+ */
+ if (rw & REQ_DISCARD)
+ bi->bi_vcnt = 0;
if (rrdev)
set_bit(R5_DOUBLE_LOCKED, &sh->dev[i].flags);
rbi->bi_io_vec[0].bv_len = STRIPE_SIZE;
rbi->bi_io_vec[0].bv_offset = 0;
rbi->bi_size = STRIPE_SIZE;
+ /*
+ * If this is discard request, set bi_vcnt 0. We don't
+ * want to confuse SCSI because SCSI will replace payload
+ */
+ if (rw & REQ_DISCARD)
+ rbi->bi_vcnt = 0;
if (conf->mddev->gendisk)
trace_block_bio_remap(bdev_get_queue(rbi->bi_bdev),
rbi, disk_devt(conf->mddev->gendisk),
}
/* now that discard is done we can proceed with any sync */
clear_bit(STRIPE_DISCARD, &sh->state);
+ /*
+ * SCSI discard will change some bio fields and the stripe has
+ * no updated data, so remove it from hash list and the stripe
+ * will be reinitialized
+ */
+ spin_lock_irq(&conf->device_lock);
+ remove_hash(sh);
+ spin_unlock_irq(&conf->device_lock);
if (test_bit(STRIPE_SYNC_REQUESTED, &sh->state))
set_bit(STRIPE_HANDLE, &sh->state);
{ 0xd5, 0x03, 0x03 },
};
- /* firmware status */
- ret = tda10071_rd_reg(priv, 0x51, &tmp);
- if (ret)
- goto error;
-
- if (!tmp) {
+ if (priv->warm) {
/* warm state - wake up device from sleep */
- priv->warm = 1;
for (i = 0; i < ARRAY_SIZE(tab); i++) {
ret = tda10071_wr_reg_mask(priv, tab[i].reg,
goto error;
} else {
/* cold state - try to download firmware */
- priv->warm = 0;
/* request the firmware, this will block and timeout */
ret = request_firmware(&fw, fw_file, priv->i2c->dev.parent);
static const struct v4l2_dv_timings_cap ad9389b_timings_cap = {
.type = V4L2_DV_BT_656_1120,
- .bt = {
- .max_width = 1920,
- .max_height = 1200,
- .min_pixelclock = 25000000,
- .max_pixelclock = 170000000,
- .standards = V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
+ /* keep this initialization for compatibility with GCC < 4.4.6 */
+ .reserved = { 0 },
+ V4L2_INIT_BT_TIMINGS(0, 1920, 0, 1200, 25000000, 170000000,
+ V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT,
- .capabilities = V4L2_DV_BT_CAP_PROGRESSIVE |
- V4L2_DV_BT_CAP_REDUCED_BLANKING | V4L2_DV_BT_CAP_CUSTOM,
- },
+ V4L2_DV_BT_CAP_PROGRESSIVE | V4L2_DV_BT_CAP_REDUCED_BLANKING |
+ V4L2_DV_BT_CAP_CUSTOM)
};
static int ad9389b_s_dv_timings(struct v4l2_subdev *sd,
static const struct v4l2_dv_timings_cap adv7511_timings_cap = {
.type = V4L2_DV_BT_656_1120,
- .bt = {
- .max_width = ADV7511_MAX_WIDTH,
- .max_height = ADV7511_MAX_HEIGHT,
- .min_pixelclock = ADV7511_MIN_PIXELCLOCK,
- .max_pixelclock = ADV7511_MAX_PIXELCLOCK,
- .standards = V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
+ /* keep this initialization for compatibility with GCC < 4.4.6 */
+ .reserved = { 0 },
+ V4L2_INIT_BT_TIMINGS(0, ADV7511_MAX_WIDTH, 0, ADV7511_MAX_HEIGHT,
+ ADV7511_MIN_PIXELCLOCK, ADV7511_MAX_PIXELCLOCK,
+ V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT,
- .capabilities = V4L2_DV_BT_CAP_PROGRESSIVE |
- V4L2_DV_BT_CAP_REDUCED_BLANKING | V4L2_DV_BT_CAP_CUSTOM,
- },
+ V4L2_DV_BT_CAP_PROGRESSIVE | V4L2_DV_BT_CAP_REDUCED_BLANKING |
+ V4L2_DV_BT_CAP_CUSTOM)
};
static inline struct adv7511_state *get_adv7511_state(struct v4l2_subdev *sd)
state->i2c_edid = i2c_new_dummy(client->adapter, state->i2c_edid_addr >> 1);
if (state->i2c_edid == NULL) {
v4l2_err(sd, "failed to register edid i2c client\n");
+ err = -ENOMEM;
goto err_entity;
}
state->work_queue = create_singlethread_workqueue(sd->name);
if (state->work_queue == NULL) {
v4l2_err(sd, "could not create workqueue\n");
+ err = -ENOMEM;
goto err_unreg_cec;
}
static const struct v4l2_dv_timings_cap adv7842_timings_cap_analog = {
.type = V4L2_DV_BT_656_1120,
- .bt = {
- .max_width = 1920,
- .max_height = 1200,
- .min_pixelclock = 25000000,
- .max_pixelclock = 170000000,
- .standards = V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
+ /* keep this initialization for compatibility with GCC < 4.4.6 */
+ .reserved = { 0 },
+ V4L2_INIT_BT_TIMINGS(0, 1920, 0, 1200, 25000000, 170000000,
+ V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT,
- .capabilities = V4L2_DV_BT_CAP_PROGRESSIVE |
- V4L2_DV_BT_CAP_REDUCED_BLANKING | V4L2_DV_BT_CAP_CUSTOM,
- },
+ V4L2_DV_BT_CAP_PROGRESSIVE | V4L2_DV_BT_CAP_REDUCED_BLANKING |
+ V4L2_DV_BT_CAP_CUSTOM)
};
static const struct v4l2_dv_timings_cap adv7842_timings_cap_digital = {
.type = V4L2_DV_BT_656_1120,
- .bt = {
- .max_width = 1920,
- .max_height = 1200,
- .min_pixelclock = 25000000,
- .max_pixelclock = 225000000,
- .standards = V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
+ /* keep this initialization for compatibility with GCC < 4.4.6 */
+ .reserved = { 0 },
+ V4L2_INIT_BT_TIMINGS(0, 1920, 0, 1200, 25000000, 225000000,
+ V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT,
- .capabilities = V4L2_DV_BT_CAP_PROGRESSIVE |
- V4L2_DV_BT_CAP_REDUCED_BLANKING | V4L2_DV_BT_CAP_CUSTOM,
- },
+ V4L2_DV_BT_CAP_PROGRESSIVE | V4L2_DV_BT_CAP_REDUCED_BLANKING |
+ V4L2_DV_BT_CAP_CUSTOM)
};
static inline const struct v4l2_dv_timings_cap *
static const struct v4l2_dv_timings_cap ths8200_timings_cap = {
.type = V4L2_DV_BT_656_1120,
- .bt = {
- .max_width = 1920,
- .max_height = 1080,
- .min_pixelclock = 25000000,
- .max_pixelclock = 148500000,
- .standards = V4L2_DV_BT_STD_CEA861,
- .capabilities = V4L2_DV_BT_CAP_PROGRESSIVE,
- },
+ /* keep this initialization for compatibility with GCC < 4.4.6 */
+ .reserved = { 0 },
+ V4L2_INIT_BT_TIMINGS(0, 1920, 0, 1080, 25000000, 148500000,
+ V4L2_DV_BT_STD_CEA861, V4L2_DV_BT_CAP_PROGRESSIVE)
};
static inline struct ths8200_state *to_state(struct v4l2_subdev *sd)
/* stop video capture */
if (res_check(fh, RESOURCE_VIDEO)) {
+ pm_qos_remove_request(&dev->qos_request);
videobuf_streamoff(&fh->cap);
res_free(dev,fh,RESOURCE_VIDEO);
}
jpeg->vfd_decoder->release = video_device_release;
jpeg->vfd_decoder->lock = &jpeg->lock;
jpeg->vfd_decoder->v4l2_dev = &jpeg->v4l2_dev;
+ jpeg->vfd_decoder->vfl_dir = VFL_DIR_M2M;
ret = video_register_device(jpeg->vfd_decoder, VFL_TYPE_GRABBER, -1);
if (ret) {
v4l_bound_align_image(&pix->width, 0, VOU_MAX_IMAGE_WIDTH, 1,
&pix->height, 0, VOU_MAX_IMAGE_HEIGHT, 1, 0);
- for (i = 0; ARRAY_SIZE(vou_fmt); i++)
+ for (i = 0; i < ARRAY_SIZE(vou_fmt); i++)
if (vou_fmt[i].pfmt == pix->pixelformat)
return 0;
struct idmac_channel *ichan = mx3_cam->idmac_channel[0];
struct idmac_video_param *video = &ichan->params.video;
const struct soc_mbus_pixelfmt *host_fmt = icd->current_fmt->host_fmt;
- unsigned long flags;
dma_cookie_t cookie;
size_t new_size;
memset(vb2_plane_vaddr(vb, 0), 0xaa, vb2_get_plane_payload(vb, 0));
#endif
- spin_lock_irqsave(&mx3_cam->lock, flags);
+ spin_lock_irq(&mx3_cam->lock);
list_add_tail(&buf->queue, &mx3_cam->capture);
if (!mx3_cam->active)
if (mx3_cam->active == buf)
mx3_cam->active = NULL;
- spin_unlock_irqrestore(&mx3_cam->lock, flags);
+ spin_unlock_irq(&mx3_cam->lock);
error:
vb2_buffer_done(vb, VB2_BUF_STATE_ERROR);
}
*/
#include "e4000_priv.h"
+#include <linux/math64.h>
/* write multiple registers */
static int e4000_wr_regs(struct e4000_priv *priv, u8 reg, u8 *val, int len)
* or more.
*/
f_vco = c->frequency * e4000_pll_lut[i].mul;
- sigma_delta = 0x10000UL * (f_vco % priv->cfg->clock) / priv->cfg->clock;
+ sigma_delta = div_u64(0x10000ULL * (f_vco % priv->cfg->clock), priv->cfg->clock);
buf[0] = f_vco / priv->cfg->clock;
buf[1] = (sigma_delta >> 0) & 0xff;
buf[2] = (sigma_delta >> 8) & 0xff;
DMI_MATCH(DMI_PRODUCT_NAME, "F3JC")
}
},
+ {
+ .ident = "T12Rg-H",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "HCL Infosystems Limited"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "T12Rg-H")
+ }
+ },
{}
};
.bInterfaceSubClass = 1,
.bInterfaceProtocol = 0,
.driver_info = UVC_QUIRK_PROBE_MINMAX },
+ /* Microsoft Lifecam NX-3000 */
+ { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
+ | USB_DEVICE_ID_MATCH_INT_INFO,
+ .idVendor = 0x045e,
+ .idProduct = 0x0721,
+ .bInterfaceClass = USB_CLASS_VIDEO,
+ .bInterfaceSubClass = 1,
+ .bInterfaceProtocol = 0,
+ .driver_info = UVC_QUIRK_PROBE_DEF },
/* Microsoft Lifecam VX-7000 */
{ .match_flags = USB_DEVICE_ID_MATCH_DEVICE
| USB_DEVICE_ID_MATCH_INT_INFO,
.bInterfaceSubClass = 1,
.bInterfaceProtocol = 0,
.driver_info = UVC_QUIRK_PROBE_DEF },
+ /* Dell SP2008WFP Monitor */
+ { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
+ | USB_DEVICE_ID_MATCH_INT_INFO,
+ .idVendor = 0x05a9,
+ .idProduct = 0x2641,
+ .bInterfaceClass = USB_CLASS_VIDEO,
+ .bInterfaceSubClass = 1,
+ .bInterfaceProtocol = 0,
+ .driver_info = UVC_QUIRK_PROBE_DEF },
/* Dell Alienware X51 */
{ .match_flags = USB_DEVICE_ID_MATCH_DEVICE
| USB_DEVICE_ID_MATCH_INT_INFO,
if (b->m.planes[plane].bytesused > length)
return -EINVAL;
- if (b->m.planes[plane].data_offset >=
+
+ if (b->m.planes[plane].data_offset > 0 &&
+ b->m.planes[plane].data_offset >=
b->m.planes[plane].bytesused)
return -EINVAL;
}
return !!(vma->vm_flags & (VM_IO | VM_PFNMAP));
}
+static int vb2_dc_get_user_pfn(unsigned long start, int n_pages,
+ struct vm_area_struct *vma, unsigned long *res)
+{
+ unsigned long pfn, start_pfn, prev_pfn;
+ unsigned int i;
+ int ret;
+
+ if (!vma_is_io(vma))
+ return -EFAULT;
+
+ ret = follow_pfn(vma, start, &pfn);
+ if (ret)
+ return ret;
+
+ start_pfn = pfn;
+ start += PAGE_SIZE;
+
+ for (i = 1; i < n_pages; ++i, start += PAGE_SIZE) {
+ prev_pfn = pfn;
+ ret = follow_pfn(vma, start, &pfn);
+
+ if (ret) {
+ pr_err("no page for address %lu\n", start);
+ return ret;
+ }
+ if (pfn != prev_pfn + 1)
+ return -EINVAL;
+ }
+
+ *res = start_pfn;
+ return 0;
+}
+
static int vb2_dc_get_user_pages(unsigned long start, struct page **pages,
int n_pages, struct vm_area_struct *vma, int write)
{
unsigned long pfn;
int ret = follow_pfn(vma, start, &pfn);
+ if (!pfn_valid(pfn))
+ return -EINVAL;
+
if (ret) {
pr_err("no page for address %lu\n", start);
return ret;
struct vb2_dc_buf *buf = buf_priv;
struct sg_table *sgt = buf->dma_sgt;
- dma_unmap_sg(buf->dev, sgt->sgl, sgt->orig_nents, buf->dma_dir);
- if (!vma_is_io(buf->vma))
- vb2_dc_sgt_foreach_page(sgt, vb2_dc_put_dirty_page);
+ if (sgt) {
+ dma_unmap_sg(buf->dev, sgt->sgl, sgt->orig_nents, buf->dma_dir);
+ if (!vma_is_io(buf->vma))
+ vb2_dc_sgt_foreach_page(sgt, vb2_dc_put_dirty_page);
- sg_free_table(sgt);
- kfree(sgt);
+ sg_free_table(sgt);
+ kfree(sgt);
+ }
vb2_put_vma(buf->vma);
kfree(buf);
}
+/*
+ * For some kind of reserved memory there might be no struct page available,
+ * so all that can be done to support such 'pages' is to try to convert
+ * pfn to dma address or at the last resort just assume that
+ * dma address == physical address (like it has been assumed in earlier version
+ * of videobuf2-dma-contig
+ */
+
+#ifdef __arch_pfn_to_dma
+static inline dma_addr_t vb2_dc_pfn_to_dma(struct device *dev, unsigned long pfn)
+{
+ return (dma_addr_t)__arch_pfn_to_dma(dev, pfn);
+}
+#elif defined(__pfn_to_bus)
+static inline dma_addr_t vb2_dc_pfn_to_dma(struct device *dev, unsigned long pfn)
+{
+ return (dma_addr_t)__pfn_to_bus(pfn);
+}
+#elif defined(__pfn_to_phys)
+static inline dma_addr_t vb2_dc_pfn_to_dma(struct device *dev, unsigned long pfn)
+{
+ return (dma_addr_t)__pfn_to_phys(pfn);
+}
+#else
+static inline dma_addr_t vb2_dc_pfn_to_dma(struct device *dev, unsigned long pfn)
+{
+ /* really, we cannot do anything better at this point */
+ return (dma_addr_t)(pfn) << PAGE_SHIFT;
+}
+#endif
+
static void *vb2_dc_get_userptr(void *alloc_ctx, unsigned long vaddr,
unsigned long size, int write)
{
/* extract page list from userspace mapping */
ret = vb2_dc_get_user_pages(start, pages, n_pages, vma, write);
if (ret) {
+ unsigned long pfn;
+ if (vb2_dc_get_user_pfn(start, n_pages, vma, &pfn) == 0) {
+ buf->dma_addr = vb2_dc_pfn_to_dma(buf->dev, pfn);
+ buf->size = size;
+ kfree(pages);
+ return buf;
+ }
+
pr_err("failed to get user pages\n");
goto fail_vma;
}
dev->iamthif_ioctl = false;
dev->iamthif_state = MEI_IAMTHIF_IDLE;
dev->iamthif_timer = 0;
+ dev->iamthif_stall_timer = 0;
}
/**
if (cl->reading_state != MEI_READ_COMPLETE &&
!waitqueue_active(&cl->rx_wait)) {
+
mutex_unlock(&dev->device_lock);
if (wait_event_interruptible(cl->rx_wait,
- (MEI_READ_COMPLETE == cl->reading_state))) {
+ cl->reading_state == MEI_READ_COMPLETE ||
+ mei_cl_is_transitioning(cl))) {
+
if (signal_pending(current))
return -EINTR;
return -ERESTARTSYS;
cl->dev->dev_state == MEI_DEV_ENABLED &&
cl->state == MEI_FILE_CONNECTED);
}
+static inline bool mei_cl_is_transitioning(struct mei_cl *cl)
+{
+ return (MEI_FILE_INITIALIZING == cl->state ||
+ MEI_FILE_DISCONNECTED == cl->state ||
+ MEI_FILE_DISCONNECTING == cl->state);
+}
bool mei_cl_is_other_connecting(struct mei_cl *cl);
int mei_cl_disconnect(struct mei_cl *cl);
struct mei_me_client *clients;
int b;
+ dev->me_clients_num = 0;
+ dev->me_client_presentation_num = 0;
+ dev->me_client_index = 0;
+
/* count how many ME clients we have */
for_each_set_bit(b, dev->me_clients_map, MEI_CLIENTS_MAX)
dev->me_clients_num++;
- if (dev->me_clients_num <= 0)
+ if (dev->me_clients_num == 0)
return;
kfree(dev->me_clients);
struct hbm_props_request *prop_req;
const size_t len = sizeof(struct hbm_props_request);
unsigned long next_client_index;
- u8 client_num;
+ unsigned long client_num;
client_num = dev->me_client_presentation_num;
if (dev->dev_state == MEI_DEV_INIT_CLIENTS &&
dev->hbm_state == MEI_HBM_ENUM_CLIENTS) {
dev->init_clients_timer = 0;
- dev->me_client_presentation_num = 0;
- dev->me_client_index = 0;
mei_hbm_me_cl_allocate(dev);
dev->hbm_state = MEI_HBM_CLIENT_PROPERTIES;
memset(&dev->wr_ext_msg, 0, sizeof(dev->wr_ext_msg));
}
+ /* we're already in reset, cancel the init timer */
+ dev->init_clients_timer = 0;
+
dev->me_clients_num = 0;
dev->rd_msg_hdr = 0;
dev->wd_pending = false;
mutex_unlock(&dev->device_lock);
if (wait_event_interruptible(cl->rx_wait,
- (MEI_READ_COMPLETE == cl->reading_state ||
- MEI_FILE_INITIALIZING == cl->state ||
- MEI_FILE_DISCONNECTED == cl->state ||
- MEI_FILE_DISCONNECTING == cl->state))) {
+ MEI_READ_COMPLETE == cl->reading_state ||
+ mei_cl_is_transitioning(cl))) {
+
if (signal_pending(current))
return -EINTR;
return -ERESTARTSYS;
}
mutex_lock(&dev->device_lock);
- if (MEI_FILE_INITIALIZING == cl->state ||
- MEI_FILE_DISCONNECTED == cl->state ||
- MEI_FILE_DISCONNECTING == cl->state) {
+ if (mei_cl_is_transitioning(cl)) {
rets = -EBUSY;
goto out;
}
struct mei_me_client *me_clients; /* Note: memory has to be allocated */
DECLARE_BITMAP(me_clients_map, MEI_CLIENTS_MAX);
DECLARE_BITMAP(host_clients_map, MEI_CLIENTS_MAX);
- u8 me_clients_num;
- u8 me_client_presentation_num;
- u8 me_client_index;
+ unsigned long me_clients_num;
+ unsigned long me_client_presentation_num;
+ unsigned long me_client_index;
struct mei_cl wd_cl;
enum mei_wd_states wd_state;
};
static const struct of_device_id sh_mobile_sdhi_of_match[] = {
- { .compatible = "renesas,shmobile-sdhi" },
- { .compatible = "renesas,sh7372-sdhi" },
- { .compatible = "renesas,sh73a0-sdhi", .data = &sh_mobile_sdhi_of_cfg[0], },
- { .compatible = "renesas,r8a73a4-sdhi", .data = &sh_mobile_sdhi_of_cfg[0], },
- { .compatible = "renesas,r8a7740-sdhi", .data = &sh_mobile_sdhi_of_cfg[0], },
- { .compatible = "renesas,r8a7778-sdhi", .data = &sh_mobile_sdhi_of_cfg[0], },
- { .compatible = "renesas,r8a7779-sdhi", .data = &sh_mobile_sdhi_of_cfg[0], },
- { .compatible = "renesas,r8a7790-sdhi", .data = &sh_mobile_sdhi_of_cfg[0], },
+ { .compatible = "renesas,sdhi-shmobile" },
+ { .compatible = "renesas,sdhi-sh7372" },
+ { .compatible = "renesas,sdhi-sh73a0", .data = &sh_mobile_sdhi_of_cfg[0], },
+ { .compatible = "renesas,sdhi-r8a73a4", .data = &sh_mobile_sdhi_of_cfg[0], },
+ { .compatible = "renesas,sdhi-r8a7740", .data = &sh_mobile_sdhi_of_cfg[0], },
+ { .compatible = "renesas,sdhi-r8a7778", .data = &sh_mobile_sdhi_of_cfg[0], },
+ { .compatible = "renesas,sdhi-r8a7779", .data = &sh_mobile_sdhi_of_cfg[0], },
+ { .compatible = "renesas,sdhi-r8a7790", .data = &sh_mobile_sdhi_of_cfg[0], },
{},
};
MODULE_DEVICE_TABLE(of, sh_mobile_sdhi_of_match);
*/
static inline int set_4byte(struct m25p *flash, u32 jedec_id, int enable)
{
+ int status;
+ bool need_wren = false;
+
switch (JEDEC_MFR(jedec_id)) {
- case CFI_MFR_MACRONIX:
case CFI_MFR_ST: /* Micron, actually */
+ /* Some Micron need WREN command; all will accept it */
+ need_wren = true;
+ case CFI_MFR_MACRONIX:
case 0xEF /* winbond */:
+ if (need_wren)
+ write_enable(flash);
+
flash->command[0] = enable ? OPCODE_EN4B : OPCODE_EX4B;
- return spi_write(flash->spi, flash->command, 1);
+ status = spi_write(flash->spi, flash->command, 1);
+
+ if (need_wren)
+ write_disable(flash);
+
+ return status;
default:
/* Spansion style */
flash->command[0] = OPCODE_BRWR;
int common_nfc_set_geometry(struct gpmi_nand_data *this)
{
- return set_geometry_by_ecc_info(this) ? 0 : legacy_set_geometry(this);
+ return legacy_set_geometry(this);
}
struct dma_chan *get_dma_chan(struct gpmi_nand_data *this)
len = le16_to_cpu(p->ext_param_page_length) * 16;
ep = kmalloc(len, GFP_KERNEL);
- if (!ep) {
- ret = -ENOMEM;
- goto ext_out;
- }
+ if (!ep)
+ return -ENOMEM;
/* Send our own NAND_CMD_PARAM. */
chip->cmdfunc(mtd, NAND_CMD_PARAM, 0, -1);
}
pr_info("ONFI extended param page detected.\n");
- return 0;
+ ret = 0;
ext_out:
kfree(ep);
for (cs = 0; cs < pdata->num_cs; cs++) {
struct mtd_info *mtd = info->host[cs]->mtd;
- mtd->name = pdev->name;
+ /*
+ * The mtd name matches the one used in 'mtdparts' kernel
+ * parameter. This name cannot be changed or otherwise
+ * user's mtd partitions configuration would get broken.
+ */
+ mtd->name = "pxa3xx_nand-0";
info->cs = cs;
ret = pxa3xx_nand_scan(mtd);
if (ret) {
struct bonding *bond = netdev_priv(bond_dev);
struct slave *slave, *oldcurrent;
struct sockaddr addr;
+ int old_flags = bond_dev->flags;
netdev_features_t old_features = bond_dev->features;
/* slave is not a slave or master is not master of this slave */
* bond_change_active_slave(..., NULL)
*/
if (!USES_PRIMARY(bond->params.mode)) {
- /* unset promiscuity level from slave */
- if (bond_dev->flags & IFF_PROMISC)
+ /* unset promiscuity level from slave
+ * NOTE: The NETDEV_CHANGEADDR call above may change the value
+ * of the IFF_PROMISC flag in the bond_dev, but we need the
+ * value of that flag before that change, as that was the value
+ * when this slave was attached, so we cache at the start of the
+ * function and use it here. Same goes for ALLMULTI below
+ */
+ if (old_flags & IFF_PROMISC)
dev_set_promiscuity(slave_dev, -1);
/* unset allmulti level from slave */
- if (bond_dev->flags & IFF_ALLMULTI)
+ if (old_flags & IFF_ALLMULTI)
dev_set_allmulti(slave_dev, -1);
bond_hw_addr_flush(bond_dev, slave_dev);
static const struct platform_device_id at91_can_id_table[] = {
{
- .name = "at91_can",
+ .name = "at91sam9x5_can",
.driver_data = (kernel_ulong_t)&at91_at91sam9x5_data,
}, {
- .name = "at91sam9x5_can",
+ .name = "at91_can",
.driver_data = (kernel_ulong_t)&at91_at91sam9263_data,
}, {
/* sentinel */
size_t size;
size = nla_total_size(sizeof(u32)); /* IFLA_CAN_STATE */
- size += sizeof(struct can_ctrlmode); /* IFLA_CAN_CTRLMODE */
+ size += nla_total_size(sizeof(struct can_ctrlmode)); /* IFLA_CAN_CTRLMODE */
size += nla_total_size(sizeof(u32)); /* IFLA_CAN_RESTART_MS */
- size += sizeof(struct can_bittiming); /* IFLA_CAN_BITTIMING */
- size += sizeof(struct can_clock); /* IFLA_CAN_CLOCK */
+ size += nla_total_size(sizeof(struct can_bittiming)); /* IFLA_CAN_BITTIMING */
+ size += nla_total_size(sizeof(struct can_clock)); /* IFLA_CAN_CLOCK */
if (priv->do_get_berr_counter) /* IFLA_CAN_BERR_COUNTER */
- size += sizeof(struct can_berr_counter);
+ size += nla_total_size(sizeof(struct can_berr_counter));
if (priv->bittiming_const) /* IFLA_CAN_BITTIMING_CONST */
- size += sizeof(struct can_bittiming_const);
+ size += nla_total_size(sizeof(struct can_bittiming_const));
return size;
}
#define FLEXCAN_MCR_BCC BIT(16)
#define FLEXCAN_MCR_LPRIO_EN BIT(13)
#define FLEXCAN_MCR_AEN BIT(12)
-#define FLEXCAN_MCR_MAXMB(x) ((x) & 0xf)
+#define FLEXCAN_MCR_MAXMB(x) ((x) & 0x1f)
#define FLEXCAN_MCR_IDAM_A (0 << 8)
#define FLEXCAN_MCR_IDAM_B (1 << 8)
#define FLEXCAN_MCR_IDAM_C (2 << 8)
{
struct flexcan_priv *priv = netdev_priv(dev);
struct flexcan_regs __iomem *regs = priv->base;
- unsigned int i;
int err;
u32 reg_mcr, reg_ctrl;
*
*/
reg_mcr = flexcan_read(®s->mcr);
+ reg_mcr &= ~FLEXCAN_MCR_MAXMB(0xff);
reg_mcr |= FLEXCAN_MCR_FRZ | FLEXCAN_MCR_FEN | FLEXCAN_MCR_HALT |
FLEXCAN_MCR_SUPV | FLEXCAN_MCR_WRN_EN |
- FLEXCAN_MCR_IDAM_C | FLEXCAN_MCR_SRX_DIS;
+ FLEXCAN_MCR_IDAM_C | FLEXCAN_MCR_SRX_DIS |
+ FLEXCAN_MCR_MAXMB(FLEXCAN_TX_BUF_ID);
netdev_dbg(dev, "%s: writing mcr=0x%08x", __func__, reg_mcr);
flexcan_write(reg_mcr, ®s->mcr);
netdev_dbg(dev, "%s: writing ctrl=0x%08x", __func__, reg_ctrl);
flexcan_write(reg_ctrl, ®s->ctrl);
- for (i = 0; i < ARRAY_SIZE(regs->cantxfg); i++) {
- flexcan_write(0, ®s->cantxfg[i].can_ctrl);
- flexcan_write(0, ®s->cantxfg[i].can_id);
- flexcan_write(0, ®s->cantxfg[i].data[0]);
- flexcan_write(0, ®s->cantxfg[i].data[1]);
-
- /* put MB into rx queue */
- flexcan_write(FLEXCAN_MB_CNT_CODE(0x4),
- ®s->cantxfg[i].can_ctrl);
- }
+ /* Abort any pending TX, mark Mailbox as INACTIVE */
+ flexcan_write(FLEXCAN_MB_CNT_CODE(0x4),
+ ®s->cantxfg[FLEXCAN_TX_BUF_ID].can_ctrl);
/* acceptance mask/acceptance code (accept everything) */
flexcan_write(0x0, ®s->rxgmask);
}
static const struct of_device_id flexcan_of_match[] = {
- { .compatible = "fsl,p1010-flexcan", .data = &fsl_p1010_devtype_data, },
- { .compatible = "fsl,imx28-flexcan", .data = &fsl_imx28_devtype_data, },
{ .compatible = "fsl,imx6q-flexcan", .data = &fsl_imx6q_devtype_data, },
+ { .compatible = "fsl,imx28-flexcan", .data = &fsl_imx28_devtype_data, },
+ { .compatible = "fsl,p1010-flexcan", .data = &fsl_p1010_devtype_data, },
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(of, flexcan_of_match);
/* maximum rx buffer len: extended CAN frame with timestamp */
#define SLC_MTU (sizeof("T1111222281122334455667788EA5F\r")+1)
+#define SLC_CMD_LEN 1
+#define SLC_SFF_ID_LEN 3
+#define SLC_EFF_ID_LEN 8
+
struct slcan {
int magic;
{
struct sk_buff *skb;
struct can_frame cf;
- int i, dlc_pos, tmp;
- unsigned long ultmp;
- char cmd = sl->rbuff[0];
-
- if ((cmd != 't') && (cmd != 'T') && (cmd != 'r') && (cmd != 'R'))
+ int i, tmp;
+ u32 tmpid;
+ char *cmd = sl->rbuff;
+
+ cf.can_id = 0;
+
+ switch (*cmd) {
+ case 'r':
+ cf.can_id = CAN_RTR_FLAG;
+ /* fallthrough */
+ case 't':
+ /* store dlc ASCII value and terminate SFF CAN ID string */
+ cf.can_dlc = sl->rbuff[SLC_CMD_LEN + SLC_SFF_ID_LEN];
+ sl->rbuff[SLC_CMD_LEN + SLC_SFF_ID_LEN] = 0;
+ /* point to payload data behind the dlc */
+ cmd += SLC_CMD_LEN + SLC_SFF_ID_LEN + 1;
+ break;
+ case 'R':
+ cf.can_id = CAN_RTR_FLAG;
+ /* fallthrough */
+ case 'T':
+ cf.can_id |= CAN_EFF_FLAG;
+ /* store dlc ASCII value and terminate EFF CAN ID string */
+ cf.can_dlc = sl->rbuff[SLC_CMD_LEN + SLC_EFF_ID_LEN];
+ sl->rbuff[SLC_CMD_LEN + SLC_EFF_ID_LEN] = 0;
+ /* point to payload data behind the dlc */
+ cmd += SLC_CMD_LEN + SLC_EFF_ID_LEN + 1;
+ break;
+ default:
return;
+ }
- if (cmd & 0x20) /* tiny chars 'r' 't' => standard frame format */
- dlc_pos = 4; /* dlc position tiiid */
- else
- dlc_pos = 9; /* dlc position Tiiiiiiiid */
-
- if (!((sl->rbuff[dlc_pos] >= '0') && (sl->rbuff[dlc_pos] < '9')))
+ if (kstrtou32(sl->rbuff + SLC_CMD_LEN, 16, &tmpid))
return;
- cf.can_dlc = sl->rbuff[dlc_pos] - '0'; /* get can_dlc from ASCII val */
+ cf.can_id |= tmpid;
- sl->rbuff[dlc_pos] = 0; /* terminate can_id string */
-
- if (kstrtoul(sl->rbuff+1, 16, &ultmp))
+ /* get can_dlc from sanitized ASCII value */
+ if (cf.can_dlc >= '0' && cf.can_dlc < '9')
+ cf.can_dlc -= '0';
+ else
return;
- cf.can_id = ultmp;
-
- if (!(cmd & 0x20)) /* NO tiny chars => extended frame format */
- cf.can_id |= CAN_EFF_FLAG;
-
- if ((cmd | 0x20) == 'r') /* RTR frame */
- cf.can_id |= CAN_RTR_FLAG;
-
*(u64 *) (&cf.data) = 0; /* clear payload */
- for (i = 0, dlc_pos++; i < cf.can_dlc; i++) {
- tmp = hex_to_bin(sl->rbuff[dlc_pos++]);
- if (tmp < 0)
- return;
- cf.data[i] = (tmp << 4);
- tmp = hex_to_bin(sl->rbuff[dlc_pos++]);
- if (tmp < 0)
- return;
- cf.data[i] |= tmp;
+ /* RTR frames may have a dlc > 0 but they never have any data bytes */
+ if (!(cf.can_id & CAN_RTR_FLAG)) {
+ for (i = 0; i < cf.can_dlc; i++) {
+ tmp = hex_to_bin(*cmd++);
+ if (tmp < 0)
+ return;
+ cf.data[i] = (tmp << 4);
+ tmp = hex_to_bin(*cmd++);
+ if (tmp < 0)
+ return;
+ cf.data[i] |= tmp;
+ }
}
skb = dev_alloc_skb(sizeof(struct can_frame) +
/* parse tty input stream */
static void slcan_unesc(struct slcan *sl, unsigned char s)
{
-
if ((s == '\r') || (s == '\a')) { /* CR or BEL ends the pdu */
if (!test_and_clear_bit(SLF_ERROR, &sl->flags) &&
(sl->rcount > 4)) {
/* Encapsulate one can_frame and stuff into a TTY queue. */
static void slc_encaps(struct slcan *sl, struct can_frame *cf)
{
- int actual, idx, i;
- char cmd;
+ int actual, i;
+ unsigned char *pos;
+ unsigned char *endpos;
+ canid_t id = cf->can_id;
+
+ pos = sl->xbuff;
if (cf->can_id & CAN_RTR_FLAG)
- cmd = 'R'; /* becomes 'r' in standard frame format */
+ *pos = 'R'; /* becomes 'r' in standard frame format (SFF) */
else
- cmd = 'T'; /* becomes 't' in standard frame format */
+ *pos = 'T'; /* becomes 't' in standard frame format (SSF) */
- if (cf->can_id & CAN_EFF_FLAG)
- sprintf(sl->xbuff, "%c%08X%d", cmd,
- cf->can_id & CAN_EFF_MASK, cf->can_dlc);
- else
- sprintf(sl->xbuff, "%c%03X%d", cmd | 0x20,
- cf->can_id & CAN_SFF_MASK, cf->can_dlc);
+ /* determine number of chars for the CAN-identifier */
+ if (cf->can_id & CAN_EFF_FLAG) {
+ id &= CAN_EFF_MASK;
+ endpos = pos + SLC_EFF_ID_LEN;
+ } else {
+ *pos |= 0x20; /* convert R/T to lower case for SFF */
+ id &= CAN_SFF_MASK;
+ endpos = pos + SLC_SFF_ID_LEN;
+ }
- idx = strlen(sl->xbuff);
+ /* build 3 (SFF) or 8 (EFF) digit CAN identifier */
+ pos++;
+ while (endpos >= pos) {
+ *endpos-- = hex_asc_upper[id & 0xf];
+ id >>= 4;
+ }
+
+ pos += (cf->can_id & CAN_EFF_FLAG) ? SLC_EFF_ID_LEN : SLC_SFF_ID_LEN;
- for (i = 0; i < cf->can_dlc; i++)
- sprintf(&sl->xbuff[idx + 2*i], "%02X", cf->data[i]);
+ *pos++ = cf->can_dlc + '0';
+
+ /* RTR frames may have a dlc > 0 but they never have any data bytes */
+ if (!(cf->can_id & CAN_RTR_FLAG)) {
+ for (i = 0; i < cf->can_dlc; i++)
+ pos = hex_byte_pack_upper(pos, cf->data[i]);
+ }
- strcat(sl->xbuff, "\r"); /* add terminating character */
+ *pos++ = '\r';
/* Order of next two lines is *very* important.
* When we are sending a little amount of data,
* 14 Oct 1994 Dmitry Gorodchanin.
*/
set_bit(TTY_DO_WRITE_WAKEUP, &sl->tty->flags);
- actual = sl->tty->ops->write(sl->tty, sl->xbuff, strlen(sl->xbuff));
- sl->xleft = strlen(sl->xbuff) - actual;
+ actual = sl->tty->ops->write(sl->tty, sl->xbuff, pos - sl->xbuff);
+ sl->xleft = (pos - sl->xbuff) - actual;
sl->xhead = sl->xbuff + actual;
sl->dev->stats.tx_bytes += cf->can_dlc;
}
if (!sl || sl->magic != SLCAN_MAGIC || !netif_running(sl->dev))
return;
+ spin_lock(&sl->lock);
if (sl->xleft <= 0) {
/* Now serial buffer is almost free & we can start
* transmission of another packet */
sl->dev->stats.tx_packets++;
clear_bit(TTY_DO_WRITE_WAKEUP, &tty->flags);
+ spin_unlock(&sl->lock);
netif_wake_queue(sl->dev);
return;
}
actual = tty->ops->write(tty, sl->xhead, sl->xleft);
sl->xleft -= actual;
sl->xhead += actual;
+ spin_unlock(&sl->lock);
}
/* Send a can_frame to a TTY queue. */
if (i < PCAN_USB_MAX_TX_URBS) {
if (i == 0) {
netdev_err(netdev, "couldn't setup any tx URB\n");
- return err;
+ goto err_tx;
}
netdev_warn(netdev, "tx performance may be slow\n");
if (dev->adapter->dev_start) {
err = dev->adapter->dev_start(dev);
if (err)
- goto failed;
+ goto err_adapter;
}
dev->state |= PCAN_USB_STATE_STARTED;
if (dev->adapter->dev_set_bus) {
err = dev->adapter->dev_set_bus(dev, 1);
if (err)
- goto failed;
+ goto err_adapter;
}
dev->can.state = CAN_STATE_ERROR_ACTIVE;
return 0;
-failed:
+err_adapter:
if (err == -ENODEV)
netif_device_detach(dev->netdev);
netdev_warn(netdev, "couldn't submit control: %d\n", err);
+ for (i = 0; i < PCAN_USB_MAX_TX_URBS; i++) {
+ usb_free_urb(dev->tx_contexts[i].urb);
+ dev->tx_contexts[i].urb = NULL;
+ }
+err_tx:
+ usb_kill_anchored_urbs(&dev->rx_submitted);
+
return err;
}
/* TM (timers) host DB constants */
#define TM_ILT_PAGE_SZ_HW 0
#define TM_ILT_PAGE_SZ (4096 << TM_ILT_PAGE_SZ_HW) /* 4K */
-/* #define TM_CONN_NUM (CNIC_STARTING_CID+CNIC_ISCSI_CXT_MAX) */
-#define TM_CONN_NUM 1024
+#define TM_CONN_NUM (BNX2X_FIRST_VF_CID + \
+ BNX2X_VF_CIDS + \
+ CNIC_ISCSI_CID_MAX)
#define TM_ILT_SZ (8 * TM_CONN_NUM)
#define TM_ILT_LINES DIV_ROUND_UP(TM_ILT_SZ, TM_ILT_PAGE_SZ)
#define PCI_32BIT_FLAG (1 << 1)
#define ONE_PORT_FLAG (1 << 2)
#define NO_WOL_FLAG (1 << 3)
-#define USING_DAC_FLAG (1 << 4)
#define USING_MSIX_FLAG (1 << 5)
#define USING_MSI_FLAG (1 << 6)
#define DISABLE_MSI_FLAG (1 << 7)
u16 rx_ticks_int;
u16 rx_ticks;
/* Maximal coalescing timeout in us */
-#define BNX2X_MAX_COALESCE_TOUT (0xf0*12)
+#define BNX2X_MAX_COALESCE_TOUT (0xff*BNX2X_BTR)
u32 lin_cnt;
void bnx2x_prep_dmae_with_comp(struct bnx2x *bp, struct dmae_command *dmae,
u8 src_type, u8 dst_type);
-int bnx2x_issue_dmae_with_comp(struct bnx2x *bp, struct dmae_command *dmae);
+int bnx2x_issue_dmae_with_comp(struct bnx2x *bp, struct dmae_command *dmae,
+ u32 *comp);
/* FLR related routines */
u32 bnx2x_flr_clnup_poll_count(struct bnx2x *bp);
};
void bnx2x_set_local_cmng(struct bnx2x *bp);
+
+#define MCPR_SCRATCH_BASE(bp) \
+ (CHIP_IS_E1x(bp) ? MCP_REG_MCPR_SCRATCH : MCP_A_REG_MCPR_SCRATCH)
+
#endif /* bnx2x.h */
}
}
#endif
+ skb_record_rx_queue(skb, fp->rx_queue);
napi_gro_receive(&fp->napi, skb);
}
load_error_cnic1:
bnx2x_napi_disable_cnic(bp);
/* Update the number of queues without the cnic queues */
- rc = bnx2x_set_real_num_queues(bp, 0);
- if (rc)
+ if (bnx2x_set_real_num_queues(bp, 0))
BNX2X_ERR("Unable to set real_num_queues not including cnic\n");
load_error_cnic0:
BNX2X_ERR("CNIC-related load failed\n");
* will re-enable parity attentions right after the dump.
*/
- /* Disable parity on path 0 */
- bnx2x_pretend_func(bp, 0);
bnx2x_disable_blocks_parity(bp);
- /* Disable parity on path 1 */
- bnx2x_pretend_func(bp, 1);
- bnx2x_disable_blocks_parity(bp);
-
- /* Return to current function */
- bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
-
dump_hdr.header_size = (sizeof(struct dump_header) / 4) - 1;
dump_hdr.preset = DUMP_ALL_PRESETS;
dump_hdr.version = BNX2X_DUMP_VERSION;
/* Actually read the registers */
__bnx2x_get_regs(bp, p);
- /* Re-enable parity attentions on path 0 */
- bnx2x_pretend_func(bp, 0);
+ /* Re-enable parity attentions */
bnx2x_clear_blocks_parity(bp);
bnx2x_enable_blocks_parity(bp);
-
- /* Re-enable parity attentions on path 1 */
- bnx2x_pretend_func(bp, 1);
- bnx2x_clear_blocks_parity(bp);
- bnx2x_enable_blocks_parity(bp);
-
- /* Return to current function */
- bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
}
static int bnx2x_get_preset_regs_len(struct net_device *dev, u32 preset)
* will re-enable parity attentions right after the dump.
*/
- /* Disable parity on path 0 */
- bnx2x_pretend_func(bp, 0);
bnx2x_disable_blocks_parity(bp);
- /* Disable parity on path 1 */
- bnx2x_pretend_func(bp, 1);
- bnx2x_disable_blocks_parity(bp);
-
- /* Return to current function */
- bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
-
dump_hdr.header_size = (sizeof(struct dump_header) / 4) - 1;
dump_hdr.preset = bp->dump_preset_idx;
dump_hdr.version = BNX2X_DUMP_VERSION;
/* Actually read the registers */
__bnx2x_get_preset_regs(bp, p, dump_hdr.preset);
- /* Re-enable parity attentions on path 0 */
- bnx2x_pretend_func(bp, 0);
+ /* Re-enable parity attentions */
bnx2x_clear_blocks_parity(bp);
bnx2x_enable_blocks_parity(bp);
- /* Re-enable parity attentions on path 1 */
- bnx2x_pretend_func(bp, 1);
- bnx2x_clear_blocks_parity(bp);
- bnx2x_enable_blocks_parity(bp);
-
- /* Return to current function */
- bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
-
return 0;
}
* [30] MCP Latched ump_tx_parity
* [31] MCP Latched scpad_parity
*/
-#define MISC_AEU_ENABLE_MCP_PRTY_BITS \
+#define MISC_AEU_ENABLE_MCP_PRTY_SUB_BITS \
(AEU_INPUTS_ATTN_BITS_MCP_LATCHED_ROM_PARITY | \
AEU_INPUTS_ATTN_BITS_MCP_LATCHED_UMP_RX_PARITY | \
- AEU_INPUTS_ATTN_BITS_MCP_LATCHED_UMP_TX_PARITY | \
+ AEU_INPUTS_ATTN_BITS_MCP_LATCHED_UMP_TX_PARITY)
+
+#define MISC_AEU_ENABLE_MCP_PRTY_BITS \
+ (MISC_AEU_ENABLE_MCP_PRTY_SUB_BITS | \
AEU_INPUTS_ATTN_BITS_MCP_LATCHED_SCPAD_PARITY)
/* Below registers control the MCP parity attention output. When
* MISC_AEU_ENABLE_MCP_PRTY_BITS are set - attentions are
* enabled, when cleared - disabled.
*/
-static const u32 mcp_attn_ctl_regs[] = {
- MISC_REG_AEU_ENABLE4_FUNC_0_OUT_0,
- MISC_REG_AEU_ENABLE4_NIG_0,
- MISC_REG_AEU_ENABLE4_PXP_0,
- MISC_REG_AEU_ENABLE4_FUNC_1_OUT_0,
- MISC_REG_AEU_ENABLE4_NIG_1,
- MISC_REG_AEU_ENABLE4_PXP_1
+static const struct {
+ u32 addr;
+ u32 bits;
+} mcp_attn_ctl_regs[] = {
+ { MISC_REG_AEU_ENABLE4_FUNC_0_OUT_0,
+ MISC_AEU_ENABLE_MCP_PRTY_BITS },
+ { MISC_REG_AEU_ENABLE4_NIG_0,
+ MISC_AEU_ENABLE_MCP_PRTY_SUB_BITS },
+ { MISC_REG_AEU_ENABLE4_PXP_0,
+ MISC_AEU_ENABLE_MCP_PRTY_SUB_BITS },
+ { MISC_REG_AEU_ENABLE4_FUNC_1_OUT_0,
+ MISC_AEU_ENABLE_MCP_PRTY_BITS },
+ { MISC_REG_AEU_ENABLE4_NIG_1,
+ MISC_AEU_ENABLE_MCP_PRTY_SUB_BITS },
+ { MISC_REG_AEU_ENABLE4_PXP_1,
+ MISC_AEU_ENABLE_MCP_PRTY_SUB_BITS }
};
static inline void bnx2x_set_mcp_parity(struct bnx2x *bp, u8 enable)
u32 reg_val;
for (i = 0; i < ARRAY_SIZE(mcp_attn_ctl_regs); i++) {
- reg_val = REG_RD(bp, mcp_attn_ctl_regs[i]);
+ reg_val = REG_RD(bp, mcp_attn_ctl_regs[i].addr);
if (enable)
- reg_val |= MISC_AEU_ENABLE_MCP_PRTY_BITS;
+ reg_val |= mcp_attn_ctl_regs[i].bits;
else
- reg_val &= ~MISC_AEU_ENABLE_MCP_PRTY_BITS;
+ reg_val &= ~mcp_attn_ctl_regs[i].bits;
- REG_WR(bp, mcp_attn_ctl_regs[i], reg_val);
+ REG_WR(bp, mcp_attn_ctl_regs[i].addr, reg_val);
}
}
#define EDC_MODE_LINEAR 0x0022
#define EDC_MODE_LIMITING 0x0044
#define EDC_MODE_PASSIVE_DAC 0x0055
+#define EDC_MODE_ACTIVE_DAC 0x0066
/* ETS defines*/
#define DCBX_INVALID_COS (0xFF)
bnx2x_update_link_attr(params, vars->link_attr_sync);
}
+static void bnx2x_disable_kr2(struct link_params *params,
+ struct link_vars *vars,
+ struct bnx2x_phy *phy)
+{
+ struct bnx2x *bp = params->bp;
+ int i;
+ static struct bnx2x_reg_set reg_set[] = {
+ /* Step 1 - Program the TX/RX alignment markers */
+ {MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL5, 0x7690},
+ {MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL7, 0xe647},
+ {MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL6, 0xc4f0},
+ {MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL9, 0x7690},
+ {MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_RX_CTRL11, 0xe647},
+ {MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_RX_CTRL10, 0xc4f0},
+ {MDIO_WC_DEVAD, MDIO_WC_REG_CL73_USERB0_CTRL, 0x000c},
+ {MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CTRL1, 0x6000},
+ {MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CTRL3, 0x0000},
+ {MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CODE_FIELD, 0x0002},
+ {MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI1, 0x0000},
+ {MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI2, 0x0af7},
+ {MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI3, 0x0af7},
+ {MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_LD_BAM_CODE, 0x0002},
+ {MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_LD_UD_CODE, 0x0000}
+ };
+ DP(NETIF_MSG_LINK, "Disabling 20G-KR2\n");
+
+ for (i = 0; i < ARRAY_SIZE(reg_set); i++)
+ bnx2x_cl45_write(bp, phy, reg_set[i].devad, reg_set[i].reg,
+ reg_set[i].val);
+ vars->link_attr_sync &= ~LINK_ATTR_SYNC_KR2_ENABLE;
+ bnx2x_update_link_attr(params, vars->link_attr_sync);
+
+ vars->check_kr2_recovery_cnt = CHECK_KR2_RECOVERY_CNT;
+}
+
static void bnx2x_warpcore_set_lpi_passthrough(struct bnx2x_phy *phy,
struct link_params *params)
{
struct link_params *params,
struct link_vars *vars) {
u16 lane, i, cl72_ctrl, an_adv = 0;
- u16 ucode_ver;
struct bnx2x *bp = params->bp;
static struct bnx2x_reg_set reg_set[] = {
{MDIO_WC_DEVAD, MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2, 0x7},
/* Advertise pause */
bnx2x_ext_phy_set_pause(params, phy, vars);
- /* Set KR Autoneg Work-Around flag for Warpcore version older than D108
- */
- bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
- MDIO_WC_REG_UC_INFO_B1_VERSION, &ucode_ver);
- if (ucode_ver < 0xd108) {
- DP(NETIF_MSG_LINK, "Enable AN KR work-around. WC ver:0x%x\n",
- ucode_ver);
- vars->rx_tx_asic_rst = MAX_KR_LINK_RETRY;
- }
+ vars->rx_tx_asic_rst = MAX_KR_LINK_RETRY;
bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
MDIO_WC_REG_DIGITAL5_MISC7, 0x100);
bnx2x_set_aer_mmd(params, phy);
bnx2x_warpcore_enable_AN_KR2(phy, params, vars);
+ } else {
+ bnx2x_disable_kr2(params, vars, phy);
}
/* Enable Autoneg: only on the main lane */
struct bnx2x *bp = params->bp;
u32 serdes_net_if;
u16 gp_status1 = 0, lnkup = 0, lnkup_kr = 0;
- u16 lane = bnx2x_get_warpcore_lane(phy, params);
vars->turn_to_run_wc_rt = vars->turn_to_run_wc_rt ? 0 : 1;
if (!vars->turn_to_run_wc_rt)
return;
- /* Return if there is no link partner */
- if (!(bnx2x_warpcore_get_sigdet(phy, params))) {
- DP(NETIF_MSG_LINK, "bnx2x_warpcore_get_sigdet false\n");
- return;
- }
-
if (vars->rx_tx_asic_rst) {
+ u16 lane = bnx2x_get_warpcore_lane(phy, params);
serdes_net_if = (REG_RD(bp, params->shmem_base +
offsetof(struct shmem_region, dev_info.
port_hw_config[params->port].default_cfg)) &
/*10G KR*/
lnkup_kr = (gp_status1 >> (12+lane)) & 0x1;
- DP(NETIF_MSG_LINK,
- "gp_status1 0x%x\n", gp_status1);
-
if (lnkup_kr || lnkup) {
- vars->rx_tx_asic_rst = 0;
- DP(NETIF_MSG_LINK,
- "link up, rx_tx_asic_rst 0x%x\n",
- vars->rx_tx_asic_rst);
+ vars->rx_tx_asic_rst = 0;
} else {
/* Reset the lane to see if link comes up.*/
bnx2x_warpcore_reset_lane(bp, phy, 1);
* enabled transmitter to avoid current leakage in case
* no module is connected
*/
- if (bnx2x_is_sfp_module_plugged(phy, params))
- bnx2x_sfp_module_detection(phy, params);
- else
- bnx2x_sfp_e3_set_transmitter(params, phy, 1);
+ if ((params->loopback_mode == LOOPBACK_NONE) ||
+ (params->loopback_mode == LOOPBACK_EXT)) {
+ if (bnx2x_is_sfp_module_plugged(phy, params))
+ bnx2x_sfp_module_detection(phy, params);
+ else
+ bnx2x_sfp_e3_set_transmitter(params,
+ phy, 1);
+ }
bnx2x_warpcore_config_sfi(phy, params);
break;
rc = bnx2x_get_link_speed_duplex(phy, params, vars, link_up, gp_speed,
duplex);
+ /* In case of KR link down, start up the recovering procedure */
+ if ((!link_up) && (phy->media_type == ETH_PHY_KR) &&
+ (!(phy->flags & FLAGS_WC_DUAL_MODE)))
+ vars->rx_tx_asic_rst = MAX_KR_LINK_RETRY;
+
DP(NETIF_MSG_LINK, "duplex %x flow_ctrl 0x%x link_status 0x%x\n",
vars->duplex, vars->flow_ctrl, vars->link_status);
return rc;
params->phy[INT_PHY].config_init(phy, params, vars);
}
+ /* Re-read this value in case it was changed inside config_init due to
+ * limitations of optic module
+ */
+ vars->line_speed = params->phy[INT_PHY].req_line_speed;
+
/* Init external phy*/
if (non_ext_phy) {
if (params->phy[INT_PHY].supported &
if (copper_module_type &
SFP_EEPROM_FC_TX_TECH_BITMASK_COPPER_ACTIVE) {
DP(NETIF_MSG_LINK, "Active Copper cable detected\n");
- check_limiting_mode = 1;
+ if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT)
+ *edc_mode = EDC_MODE_ACTIVE_DAC;
+ else
+ check_limiting_mode = 1;
} else if (copper_module_type &
SFP_EEPROM_FC_TX_TECH_BITMASK_COPPER_PASSIVE) {
DP(NETIF_MSG_LINK,
mode = MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE_DEFAULT;
break;
case EDC_MODE_PASSIVE_DAC:
+ case EDC_MODE_ACTIVE_DAC:
mode = MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE_SFP_DAC;
break;
default:
MDIO_AN_DEVAD, MDIO_AN_REG_8481_1000T_CTRL,
an_1000_val);
- /* set 100 speed advertisement */
- if ((phy->req_line_speed == SPEED_AUTO_NEG) &&
- (phy->speed_cap_mask &
- (PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_FULL |
- PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_HALF))) {
- an_10_100_val |= (1<<7);
- /* Enable autoneg and restart autoneg for legacy speeds */
- autoneg_val |= (1<<9 | 1<<12);
-
- if (phy->req_duplex == DUPLEX_FULL)
+ /* Set 10/100 speed advertisement */
+ if (phy->req_line_speed == SPEED_AUTO_NEG) {
+ if (phy->speed_cap_mask &
+ PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_FULL) {
+ /* Enable autoneg and restart autoneg for legacy speeds
+ */
+ autoneg_val |= (1<<9 | 1<<12);
an_10_100_val |= (1<<8);
- DP(NETIF_MSG_LINK, "Advertising 100M\n");
- }
- /* set 10 speed advertisement */
- if (((phy->req_line_speed == SPEED_AUTO_NEG) &&
- (phy->speed_cap_mask &
- (PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_FULL |
- PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_HALF)) &&
- (phy->supported &
- (SUPPORTED_10baseT_Half |
- SUPPORTED_10baseT_Full)))) {
- an_10_100_val |= (1<<5);
- autoneg_val |= (1<<9 | 1<<12);
- if (phy->req_duplex == DUPLEX_FULL)
+ DP(NETIF_MSG_LINK, "Advertising 100M-FD\n");
+ }
+
+ if (phy->speed_cap_mask &
+ PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_HALF) {
+ /* Enable autoneg and restart autoneg for legacy speeds
+ */
+ autoneg_val |= (1<<9 | 1<<12);
+ an_10_100_val |= (1<<7);
+ DP(NETIF_MSG_LINK, "Advertising 100M-HD\n");
+ }
+
+ if ((phy->speed_cap_mask &
+ PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_FULL) &&
+ (phy->supported & SUPPORTED_10baseT_Full)) {
an_10_100_val |= (1<<6);
- DP(NETIF_MSG_LINK, "Advertising 10M\n");
+ autoneg_val |= (1<<9 | 1<<12);
+ DP(NETIF_MSG_LINK, "Advertising 10M-FD\n");
+ }
+
+ if ((phy->speed_cap_mask &
+ PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_HALF) &&
+ (phy->supported & SUPPORTED_10baseT_Half)) {
+ an_10_100_val |= (1<<5);
+ autoneg_val |= (1<<9 | 1<<12);
+ DP(NETIF_MSG_LINK, "Advertising 10M-HD\n");
+ }
}
/* Only 10/100 are allowed to work in FORCE mode */
}
}
}
-static void bnx2x_disable_kr2(struct link_params *params,
- struct link_vars *vars,
- struct bnx2x_phy *phy)
-{
- struct bnx2x *bp = params->bp;
- int i;
- static struct bnx2x_reg_set reg_set[] = {
- /* Step 1 - Program the TX/RX alignment markers */
- {MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL5, 0x7690},
- {MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL7, 0xe647},
- {MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL6, 0xc4f0},
- {MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_TX_CTRL9, 0x7690},
- {MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_RX_CTRL11, 0xe647},
- {MDIO_WC_DEVAD, MDIO_WC_REG_CL82_USERB1_RX_CTRL10, 0xc4f0},
- {MDIO_WC_DEVAD, MDIO_WC_REG_CL73_USERB0_CTRL, 0x000c},
- {MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CTRL1, 0x6000},
- {MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CTRL3, 0x0000},
- {MDIO_WC_DEVAD, MDIO_WC_REG_CL73_BAM_CODE_FIELD, 0x0002},
- {MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI1, 0x0000},
- {MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI2, 0x0af7},
- {MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_OUI3, 0x0af7},
- {MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_LD_BAM_CODE, 0x0002},
- {MDIO_WC_DEVAD, MDIO_WC_REG_ETA_CL73_LD_UD_CODE, 0x0000}
- };
- DP(NETIF_MSG_LINK, "Disabling 20G-KR2\n");
-
- for (i = 0; i < ARRAY_SIZE(reg_set); i++)
- bnx2x_cl45_write(bp, phy, reg_set[i].devad, reg_set[i].reg,
- reg_set[i].val);
- vars->link_attr_sync &= ~LINK_ATTR_SYNC_KR2_ENABLE;
- bnx2x_update_link_attr(params, vars->link_attr_sync);
-
- vars->check_kr2_recovery_cnt = CHECK_KR2_RECOVERY_CNT;
- /* Restart AN on leading lane */
- bnx2x_warpcore_restart_AN_KR(phy, params);
-}
-
static void bnx2x_kr2_recovery(struct link_params *params,
struct link_vars *vars,
struct bnx2x_phy *phy)
/* Disable KR2 on both lanes */
DP(NETIF_MSG_LINK, "BP=0x%x, NP=0x%x\n", base_page, next_page);
bnx2x_disable_kr2(params, vars, phy);
+ /* Restart AN on leading lane */
+ bnx2x_warpcore_restart_AN_KR(phy, params);
return;
}
}
}
/* issue a dmae command over the init-channel and wait for completion */
-int bnx2x_issue_dmae_with_comp(struct bnx2x *bp, struct dmae_command *dmae)
+int bnx2x_issue_dmae_with_comp(struct bnx2x *bp, struct dmae_command *dmae,
+ u32 *comp)
{
- u32 *wb_comp = bnx2x_sp(bp, wb_comp);
int cnt = CHIP_REV_IS_SLOW(bp) ? (400000) : 4000;
int rc = 0;
spin_lock_bh(&bp->dmae_lock);
/* reset completion */
- *wb_comp = 0;
+ *comp = 0;
/* post the command on the channel used for initializations */
bnx2x_post_dmae(bp, dmae, INIT_DMAE_C(bp));
/* wait for completion */
udelay(5);
- while ((*wb_comp & ~DMAE_PCI_ERR_FLAG) != DMAE_COMP_VAL) {
+ while ((*comp & ~DMAE_PCI_ERR_FLAG) != DMAE_COMP_VAL) {
if (!cnt ||
(bp->recovery_state != BNX2X_RECOVERY_DONE &&
cnt--;
udelay(50);
}
- if (*wb_comp & DMAE_PCI_ERR_FLAG) {
+ if (*comp & DMAE_PCI_ERR_FLAG) {
BNX2X_ERR("DMAE PCI error!\n");
rc = DMAE_PCI_ERROR;
}
dmae.len = len32;
/* issue the command and wait for completion */
- rc = bnx2x_issue_dmae_with_comp(bp, &dmae);
+ rc = bnx2x_issue_dmae_with_comp(bp, &dmae, bnx2x_sp(bp, wb_comp));
if (rc) {
BNX2X_ERR("DMAE returned failure %d\n", rc);
bnx2x_panic();
dmae.len = len32;
/* issue the command and wait for completion */
- rc = bnx2x_issue_dmae_with_comp(bp, &dmae);
+ rc = bnx2x_issue_dmae_with_comp(bp, &dmae, bnx2x_sp(bp, wb_comp));
if (rc) {
BNX2X_ERR("DMAE returned failure %d\n", rc);
bnx2x_panic();
return rc;
}
+#define MCPR_TRACE_BUFFER_SIZE (0x800)
+#define SCRATCH_BUFFER_SIZE(bp) \
+ (CHIP_IS_E1(bp) ? 0x10000 : (CHIP_IS_E1H(bp) ? 0x20000 : 0x28000))
+
void bnx2x_fw_dump_lvl(struct bnx2x *bp, const char *lvl)
{
u32 addr, val;
trace_shmem_base = bp->common.shmem_base;
else
trace_shmem_base = SHMEM2_RD(bp, other_shmem_base_addr);
- addr = trace_shmem_base - 0x800;
+
+ /* sanity */
+ if (trace_shmem_base < MCPR_SCRATCH_BASE(bp) + MCPR_TRACE_BUFFER_SIZE ||
+ trace_shmem_base >= MCPR_SCRATCH_BASE(bp) +
+ SCRATCH_BUFFER_SIZE(bp)) {
+ BNX2X_ERR("Unable to dump trace buffer (mark %x)\n",
+ trace_shmem_base);
+ return;
+ }
+
+ addr = trace_shmem_base - MCPR_TRACE_BUFFER_SIZE;
/* validate TRCB signature */
mark = REG_RD(bp, addr);
/* read cyclic buffer pointer */
addr += 4;
mark = REG_RD(bp, addr);
- mark = (CHIP_IS_E1x(bp) ? MCP_REG_MCPR_SCRATCH : MCP_A_REG_MCPR_SCRATCH)
- + ((mark + 0x3) & ~0x3) - 0x08000000;
+ mark = MCPR_SCRATCH_BASE(bp) + ((mark + 0x3) & ~0x3) - 0x08000000;
+ if (mark >= trace_shmem_base || mark < addr + 4) {
+ BNX2X_ERR("Mark doesn't fall inside Trace Buffer\n");
+ return;
+ }
printk("%s" "begin fw dump (mark 0x%x)\n", lvl, mark);
printk("%s", lvl);
/* dump buffer after the mark */
- for (offset = mark; offset <= trace_shmem_base; offset += 0x8*4) {
+ for (offset = mark; offset < trace_shmem_base; offset += 0x8*4) {
for (word = 0; word < 8; word++)
data[word] = htonl(REG_RD(bp, offset + 4*word));
data[8] = 0x0;
pr_cont("%s%s", idx ? ", " : "", blk);
}
-static int bnx2x_check_blocks_with_parity0(struct bnx2x *bp, u32 sig,
- int par_num, bool print)
+static bool bnx2x_check_blocks_with_parity0(struct bnx2x *bp, u32 sig,
+ int *par_num, bool print)
{
- int i = 0;
- u32 cur_bit = 0;
+ u32 cur_bit;
+ bool res;
+ int i;
+
+ res = false;
+
for (i = 0; sig; i++) {
- cur_bit = ((u32)0x1 << i);
+ cur_bit = (0x1UL << i);
if (sig & cur_bit) {
- switch (cur_bit) {
- case AEU_INPUTS_ATTN_BITS_BRB_PARITY_ERROR:
- if (print) {
- _print_next_block(par_num++, "BRB");
+ res |= true; /* Each bit is real error! */
+
+ if (print) {
+ switch (cur_bit) {
+ case AEU_INPUTS_ATTN_BITS_BRB_PARITY_ERROR:
+ _print_next_block((*par_num)++, "BRB");
_print_parity(bp,
BRB1_REG_BRB1_PRTY_STS);
- }
- break;
- case AEU_INPUTS_ATTN_BITS_PARSER_PARITY_ERROR:
- if (print) {
- _print_next_block(par_num++, "PARSER");
+ break;
+ case AEU_INPUTS_ATTN_BITS_PARSER_PARITY_ERROR:
+ _print_next_block((*par_num)++,
+ "PARSER");
_print_parity(bp, PRS_REG_PRS_PRTY_STS);
- }
- break;
- case AEU_INPUTS_ATTN_BITS_TSDM_PARITY_ERROR:
- if (print) {
- _print_next_block(par_num++, "TSDM");
+ break;
+ case AEU_INPUTS_ATTN_BITS_TSDM_PARITY_ERROR:
+ _print_next_block((*par_num)++, "TSDM");
_print_parity(bp,
TSDM_REG_TSDM_PRTY_STS);
- }
- break;
- case AEU_INPUTS_ATTN_BITS_SEARCHER_PARITY_ERROR:
- if (print) {
- _print_next_block(par_num++,
+ break;
+ case AEU_INPUTS_ATTN_BITS_SEARCHER_PARITY_ERROR:
+ _print_next_block((*par_num)++,
"SEARCHER");
_print_parity(bp, SRC_REG_SRC_PRTY_STS);
- }
- break;
- case AEU_INPUTS_ATTN_BITS_TCM_PARITY_ERROR:
- if (print) {
- _print_next_block(par_num++, "TCM");
- _print_parity(bp,
- TCM_REG_TCM_PRTY_STS);
- }
- break;
- case AEU_INPUTS_ATTN_BITS_TSEMI_PARITY_ERROR:
- if (print) {
- _print_next_block(par_num++, "TSEMI");
+ break;
+ case AEU_INPUTS_ATTN_BITS_TCM_PARITY_ERROR:
+ _print_next_block((*par_num)++, "TCM");
+ _print_parity(bp, TCM_REG_TCM_PRTY_STS);
+ break;
+ case AEU_INPUTS_ATTN_BITS_TSEMI_PARITY_ERROR:
+ _print_next_block((*par_num)++,
+ "TSEMI");
_print_parity(bp,
TSEM_REG_TSEM_PRTY_STS_0);
_print_parity(bp,
TSEM_REG_TSEM_PRTY_STS_1);
- }
- break;
- case AEU_INPUTS_ATTN_BITS_PBCLIENT_PARITY_ERROR:
- if (print) {
- _print_next_block(par_num++, "XPB");
+ break;
+ case AEU_INPUTS_ATTN_BITS_PBCLIENT_PARITY_ERROR:
+ _print_next_block((*par_num)++, "XPB");
_print_parity(bp, GRCBASE_XPB +
PB_REG_PB_PRTY_STS);
+ break;
}
- break;
}
/* Clear the bit */
}
}
- return par_num;
+ return res;
}
-static int bnx2x_check_blocks_with_parity1(struct bnx2x *bp, u32 sig,
- int par_num, bool *global,
+static bool bnx2x_check_blocks_with_parity1(struct bnx2x *bp, u32 sig,
+ int *par_num, bool *global,
bool print)
{
- int i = 0;
- u32 cur_bit = 0;
+ u32 cur_bit;
+ bool res;
+ int i;
+
+ res = false;
+
for (i = 0; sig; i++) {
- cur_bit = ((u32)0x1 << i);
+ cur_bit = (0x1UL << i);
if (sig & cur_bit) {
+ res |= true; /* Each bit is real error! */
switch (cur_bit) {
case AEU_INPUTS_ATTN_BITS_PBF_PARITY_ERROR:
if (print) {
- _print_next_block(par_num++, "PBF");
+ _print_next_block((*par_num)++, "PBF");
_print_parity(bp, PBF_REG_PBF_PRTY_STS);
}
break;
case AEU_INPUTS_ATTN_BITS_QM_PARITY_ERROR:
if (print) {
- _print_next_block(par_num++, "QM");
+ _print_next_block((*par_num)++, "QM");
_print_parity(bp, QM_REG_QM_PRTY_STS);
}
break;
case AEU_INPUTS_ATTN_BITS_TIMERS_PARITY_ERROR:
if (print) {
- _print_next_block(par_num++, "TM");
+ _print_next_block((*par_num)++, "TM");
_print_parity(bp, TM_REG_TM_PRTY_STS);
}
break;
case AEU_INPUTS_ATTN_BITS_XSDM_PARITY_ERROR:
if (print) {
- _print_next_block(par_num++, "XSDM");
+ _print_next_block((*par_num)++, "XSDM");
_print_parity(bp,
XSDM_REG_XSDM_PRTY_STS);
}
break;
case AEU_INPUTS_ATTN_BITS_XCM_PARITY_ERROR:
if (print) {
- _print_next_block(par_num++, "XCM");
+ _print_next_block((*par_num)++, "XCM");
_print_parity(bp, XCM_REG_XCM_PRTY_STS);
}
break;
case AEU_INPUTS_ATTN_BITS_XSEMI_PARITY_ERROR:
if (print) {
- _print_next_block(par_num++, "XSEMI");
+ _print_next_block((*par_num)++,
+ "XSEMI");
_print_parity(bp,
XSEM_REG_XSEM_PRTY_STS_0);
_print_parity(bp,
break;
case AEU_INPUTS_ATTN_BITS_DOORBELLQ_PARITY_ERROR:
if (print) {
- _print_next_block(par_num++,
+ _print_next_block((*par_num)++,
"DOORBELLQ");
_print_parity(bp,
DORQ_REG_DORQ_PRTY_STS);
break;
case AEU_INPUTS_ATTN_BITS_NIG_PARITY_ERROR:
if (print) {
- _print_next_block(par_num++, "NIG");
+ _print_next_block((*par_num)++, "NIG");
if (CHIP_IS_E1x(bp)) {
_print_parity(bp,
NIG_REG_NIG_PRTY_STS);
break;
case AEU_INPUTS_ATTN_BITS_VAUX_PCI_CORE_PARITY_ERROR:
if (print)
- _print_next_block(par_num++,
+ _print_next_block((*par_num)++,
"VAUX PCI CORE");
*global = true;
break;
case AEU_INPUTS_ATTN_BITS_DEBUG_PARITY_ERROR:
if (print) {
- _print_next_block(par_num++, "DEBUG");
+ _print_next_block((*par_num)++,
+ "DEBUG");
_print_parity(bp, DBG_REG_DBG_PRTY_STS);
}
break;
case AEU_INPUTS_ATTN_BITS_USDM_PARITY_ERROR:
if (print) {
- _print_next_block(par_num++, "USDM");
+ _print_next_block((*par_num)++, "USDM");
_print_parity(bp,
USDM_REG_USDM_PRTY_STS);
}
break;
case AEU_INPUTS_ATTN_BITS_UCM_PARITY_ERROR:
if (print) {
- _print_next_block(par_num++, "UCM");
+ _print_next_block((*par_num)++, "UCM");
_print_parity(bp, UCM_REG_UCM_PRTY_STS);
}
break;
case AEU_INPUTS_ATTN_BITS_USEMI_PARITY_ERROR:
if (print) {
- _print_next_block(par_num++, "USEMI");
+ _print_next_block((*par_num)++,
+ "USEMI");
_print_parity(bp,
USEM_REG_USEM_PRTY_STS_0);
_print_parity(bp,
break;
case AEU_INPUTS_ATTN_BITS_UPB_PARITY_ERROR:
if (print) {
- _print_next_block(par_num++, "UPB");
+ _print_next_block((*par_num)++, "UPB");
_print_parity(bp, GRCBASE_UPB +
PB_REG_PB_PRTY_STS);
}
break;
case AEU_INPUTS_ATTN_BITS_CSDM_PARITY_ERROR:
if (print) {
- _print_next_block(par_num++, "CSDM");
+ _print_next_block((*par_num)++, "CSDM");
_print_parity(bp,
CSDM_REG_CSDM_PRTY_STS);
}
break;
case AEU_INPUTS_ATTN_BITS_CCM_PARITY_ERROR:
if (print) {
- _print_next_block(par_num++, "CCM");
+ _print_next_block((*par_num)++, "CCM");
_print_parity(bp, CCM_REG_CCM_PRTY_STS);
}
break;
}
}
- return par_num;
+ return res;
}
-static int bnx2x_check_blocks_with_parity2(struct bnx2x *bp, u32 sig,
- int par_num, bool print)
+static bool bnx2x_check_blocks_with_parity2(struct bnx2x *bp, u32 sig,
+ int *par_num, bool print)
{
- int i = 0;
- u32 cur_bit = 0;
+ u32 cur_bit;
+ bool res;
+ int i;
+
+ res = false;
+
for (i = 0; sig; i++) {
- cur_bit = ((u32)0x1 << i);
+ cur_bit = (0x1UL << i);
if (sig & cur_bit) {
- switch (cur_bit) {
- case AEU_INPUTS_ATTN_BITS_CSEMI_PARITY_ERROR:
- if (print) {
- _print_next_block(par_num++, "CSEMI");
+ res |= true; /* Each bit is real error! */
+ if (print) {
+ switch (cur_bit) {
+ case AEU_INPUTS_ATTN_BITS_CSEMI_PARITY_ERROR:
+ _print_next_block((*par_num)++,
+ "CSEMI");
_print_parity(bp,
CSEM_REG_CSEM_PRTY_STS_0);
_print_parity(bp,
CSEM_REG_CSEM_PRTY_STS_1);
- }
- break;
- case AEU_INPUTS_ATTN_BITS_PXP_PARITY_ERROR:
- if (print) {
- _print_next_block(par_num++, "PXP");
+ break;
+ case AEU_INPUTS_ATTN_BITS_PXP_PARITY_ERROR:
+ _print_next_block((*par_num)++, "PXP");
_print_parity(bp, PXP_REG_PXP_PRTY_STS);
_print_parity(bp,
PXP2_REG_PXP2_PRTY_STS_0);
_print_parity(bp,
PXP2_REG_PXP2_PRTY_STS_1);
- }
- break;
- case AEU_IN_ATTN_BITS_PXPPCICLOCKCLIENT_PARITY_ERROR:
- if (print)
- _print_next_block(par_num++,
- "PXPPCICLOCKCLIENT");
- break;
- case AEU_INPUTS_ATTN_BITS_CFC_PARITY_ERROR:
- if (print) {
- _print_next_block(par_num++, "CFC");
+ break;
+ case AEU_IN_ATTN_BITS_PXPPCICLOCKCLIENT_PARITY_ERROR:
+ _print_next_block((*par_num)++,
+ "PXPPCICLOCKCLIENT");
+ break;
+ case AEU_INPUTS_ATTN_BITS_CFC_PARITY_ERROR:
+ _print_next_block((*par_num)++, "CFC");
_print_parity(bp,
CFC_REG_CFC_PRTY_STS);
- }
- break;
- case AEU_INPUTS_ATTN_BITS_CDU_PARITY_ERROR:
- if (print) {
- _print_next_block(par_num++, "CDU");
+ break;
+ case AEU_INPUTS_ATTN_BITS_CDU_PARITY_ERROR:
+ _print_next_block((*par_num)++, "CDU");
_print_parity(bp, CDU_REG_CDU_PRTY_STS);
- }
- break;
- case AEU_INPUTS_ATTN_BITS_DMAE_PARITY_ERROR:
- if (print) {
- _print_next_block(par_num++, "DMAE");
+ break;
+ case AEU_INPUTS_ATTN_BITS_DMAE_PARITY_ERROR:
+ _print_next_block((*par_num)++, "DMAE");
_print_parity(bp,
DMAE_REG_DMAE_PRTY_STS);
- }
- break;
- case AEU_INPUTS_ATTN_BITS_IGU_PARITY_ERROR:
- if (print) {
- _print_next_block(par_num++, "IGU");
+ break;
+ case AEU_INPUTS_ATTN_BITS_IGU_PARITY_ERROR:
+ _print_next_block((*par_num)++, "IGU");
if (CHIP_IS_E1x(bp))
_print_parity(bp,
HC_REG_HC_PRTY_STS);
else
_print_parity(bp,
IGU_REG_IGU_PRTY_STS);
- }
- break;
- case AEU_INPUTS_ATTN_BITS_MISC_PARITY_ERROR:
- if (print) {
- _print_next_block(par_num++, "MISC");
+ break;
+ case AEU_INPUTS_ATTN_BITS_MISC_PARITY_ERROR:
+ _print_next_block((*par_num)++, "MISC");
_print_parity(bp,
MISC_REG_MISC_PRTY_STS);
+ break;
}
- break;
}
/* Clear the bit */
}
}
- return par_num;
+ return res;
}
-static int bnx2x_check_blocks_with_parity3(u32 sig, int par_num,
- bool *global, bool print)
+static bool bnx2x_check_blocks_with_parity3(struct bnx2x *bp, u32 sig,
+ int *par_num, bool *global,
+ bool print)
{
- int i = 0;
- u32 cur_bit = 0;
+ bool res = false;
+ u32 cur_bit;
+ int i;
+
for (i = 0; sig; i++) {
- cur_bit = ((u32)0x1 << i);
+ cur_bit = (0x1UL << i);
if (sig & cur_bit) {
switch (cur_bit) {
case AEU_INPUTS_ATTN_BITS_MCP_LATCHED_ROM_PARITY:
if (print)
- _print_next_block(par_num++, "MCP ROM");
+ _print_next_block((*par_num)++,
+ "MCP ROM");
*global = true;
+ res |= true;
break;
case AEU_INPUTS_ATTN_BITS_MCP_LATCHED_UMP_RX_PARITY:
if (print)
- _print_next_block(par_num++,
+ _print_next_block((*par_num)++,
"MCP UMP RX");
*global = true;
+ res |= true;
break;
case AEU_INPUTS_ATTN_BITS_MCP_LATCHED_UMP_TX_PARITY:
if (print)
- _print_next_block(par_num++,
+ _print_next_block((*par_num)++,
"MCP UMP TX");
*global = true;
+ res |= true;
break;
case AEU_INPUTS_ATTN_BITS_MCP_LATCHED_SCPAD_PARITY:
if (print)
- _print_next_block(par_num++,
+ _print_next_block((*par_num)++,
"MCP SCPAD");
- *global = true;
+ /* clear latched SCPAD PATIRY from MCP */
+ REG_WR(bp, MISC_REG_AEU_CLR_LATCH_SIGNAL,
+ 1UL << 10);
break;
}
}
}
- return par_num;
+ return res;
}
-static int bnx2x_check_blocks_with_parity4(struct bnx2x *bp, u32 sig,
- int par_num, bool print)
+static bool bnx2x_check_blocks_with_parity4(struct bnx2x *bp, u32 sig,
+ int *par_num, bool print)
{
- int i = 0;
- u32 cur_bit = 0;
+ u32 cur_bit;
+ bool res;
+ int i;
+
+ res = false;
+
for (i = 0; sig; i++) {
- cur_bit = ((u32)0x1 << i);
+ cur_bit = (0x1UL << i);
if (sig & cur_bit) {
- switch (cur_bit) {
- case AEU_INPUTS_ATTN_BITS_PGLUE_PARITY_ERROR:
- if (print) {
- _print_next_block(par_num++, "PGLUE_B");
+ res |= true; /* Each bit is real error! */
+ if (print) {
+ switch (cur_bit) {
+ case AEU_INPUTS_ATTN_BITS_PGLUE_PARITY_ERROR:
+ _print_next_block((*par_num)++,
+ "PGLUE_B");
_print_parity(bp,
- PGLUE_B_REG_PGLUE_B_PRTY_STS);
- }
- break;
- case AEU_INPUTS_ATTN_BITS_ATC_PARITY_ERROR:
- if (print) {
- _print_next_block(par_num++, "ATC");
+ PGLUE_B_REG_PGLUE_B_PRTY_STS);
+ break;
+ case AEU_INPUTS_ATTN_BITS_ATC_PARITY_ERROR:
+ _print_next_block((*par_num)++, "ATC");
_print_parity(bp,
ATC_REG_ATC_PRTY_STS);
+ break;
}
- break;
}
-
/* Clear the bit */
sig &= ~cur_bit;
}
}
- return par_num;
+ return res;
}
static bool bnx2x_parity_attn(struct bnx2x *bp, bool *global, bool print,
u32 *sig)
{
+ bool res = false;
+
if ((sig[0] & HW_PRTY_ASSERT_SET_0) ||
(sig[1] & HW_PRTY_ASSERT_SET_1) ||
(sig[2] & HW_PRTY_ASSERT_SET_2) ||
if (print)
netdev_err(bp->dev,
"Parity errors detected in blocks: ");
- par_num = bnx2x_check_blocks_with_parity0(bp,
- sig[0] & HW_PRTY_ASSERT_SET_0, par_num, print);
- par_num = bnx2x_check_blocks_with_parity1(bp,
- sig[1] & HW_PRTY_ASSERT_SET_1, par_num, global, print);
- par_num = bnx2x_check_blocks_with_parity2(bp,
- sig[2] & HW_PRTY_ASSERT_SET_2, par_num, print);
- par_num = bnx2x_check_blocks_with_parity3(
- sig[3] & HW_PRTY_ASSERT_SET_3, par_num, global, print);
- par_num = bnx2x_check_blocks_with_parity4(bp,
- sig[4] & HW_PRTY_ASSERT_SET_4, par_num, print);
+ res |= bnx2x_check_blocks_with_parity0(bp,
+ sig[0] & HW_PRTY_ASSERT_SET_0, &par_num, print);
+ res |= bnx2x_check_blocks_with_parity1(bp,
+ sig[1] & HW_PRTY_ASSERT_SET_1, &par_num, global, print);
+ res |= bnx2x_check_blocks_with_parity2(bp,
+ sig[2] & HW_PRTY_ASSERT_SET_2, &par_num, print);
+ res |= bnx2x_check_blocks_with_parity3(bp,
+ sig[3] & HW_PRTY_ASSERT_SET_3, &par_num, global, print);
+ res |= bnx2x_check_blocks_with_parity4(bp,
+ sig[4] & HW_PRTY_ASSERT_SET_4, &par_num, print);
if (print)
pr_cont("\n");
+ }
- return true;
- } else
- return false;
+ return res;
}
/**
attn.sig[3] = REG_RD(bp,
MISC_REG_AEU_AFTER_INVERT_4_FUNC_0 +
port*4);
+ /* Since MCP attentions can't be disabled inside the block, we need to
+ * read AEU registers to see whether they're currently disabled
+ */
+ attn.sig[3] &= ((REG_RD(bp,
+ !port ? MISC_REG_AEU_ENABLE4_FUNC_0_OUT_0
+ : MISC_REG_AEU_ENABLE4_FUNC_1_OUT_0) &
+ MISC_AEU_ENABLE_MCP_PRTY_BITS) |
+ ~MISC_AEU_ENABLE_MCP_PRTY_BITS);
if (!CHIP_IS_E1x(bp))
attn.sig[4] = REG_RD(bp,
if (IS_PF(bp) &&
!BP_NOMCP(bp)) {
int mb_idx = BP_FW_MB_IDX(bp);
- u32 drv_pulse;
- u32 mcp_pulse;
+ u16 drv_pulse;
+ u16 mcp_pulse;
++bp->fw_drv_pulse_wr_seq;
bp->fw_drv_pulse_wr_seq &= DRV_PULSE_SEQ_MASK;
- /* TBD - add SYSTEM_TIME */
drv_pulse = bp->fw_drv_pulse_wr_seq;
bnx2x_drv_pulse(bp);
mcp_pulse = (SHMEM_RD(bp, func_mb[mb_idx].mcp_pulse_mb) &
MCP_PULSE_SEQ_MASK);
/* The delta between driver pulse and mcp response
- * should be 1 (before mcp response) or 0 (after mcp response)
+ * should not get too big. If the MFW is more than 5 pulses
+ * behind, we should worry about it enough to generate an error
+ * log.
*/
- if ((drv_pulse != mcp_pulse) &&
- (drv_pulse != ((mcp_pulse + 1) & MCP_PULSE_SEQ_MASK))) {
- /* someone lost a heartbeat... */
- BNX2X_ERR("drv_pulse (0x%x) != mcp_pulse (0x%x)\n",
+ if (((drv_pulse - mcp_pulse) & MCP_PULSE_SEQ_MASK) > 5)
+ BNX2X_ERR("MFW seems hanged: drv_pulse (0x%x) != mcp_pulse (0x%x)\n",
drv_pulse, mcp_pulse);
- }
}
if (bp->state == BNX2X_STATE_OPEN)
int port = BP_PORT(bp);
int init_phase = port ? PHASE_PORT1 : PHASE_PORT0;
u32 low, high;
- u32 val;
+ u32 val, reg;
DP(NETIF_MSG_HW, "starting port init port %d\n", port);
val |= CHIP_IS_E1(bp) ? 0 : 0x10;
REG_WR(bp, MISC_REG_AEU_MASK_ATTN_FUNC_0 + port*4, val);
+ /* SCPAD_PARITY should NOT trigger close the gates */
+ reg = port ? MISC_REG_AEU_ENABLE4_NIG_1 : MISC_REG_AEU_ENABLE4_NIG_0;
+ REG_WR(bp, reg,
+ REG_RD(bp, reg) &
+ ~AEU_INPUTS_ATTN_BITS_MCP_LATCHED_SCPAD_PARITY);
+
+ reg = port ? MISC_REG_AEU_ENABLE4_PXP_1 : MISC_REG_AEU_ENABLE4_PXP_0;
+ REG_WR(bp, reg,
+ REG_RD(bp, reg) &
+ ~AEU_INPUTS_ATTN_BITS_MCP_LATCHED_SCPAD_PARITY);
+
bnx2x_init_block(bp, BLOCK_NIG, init_phase);
if (!CHIP_IS_E1x(bp)) {
static int bnx2x_open(struct net_device *dev)
{
struct bnx2x *bp = netdev_priv(dev);
- bool global = false;
- int other_engine = BP_PATH(bp) ? 0 : 1;
- bool other_load_status, load_status;
int rc;
bp->stats_init = true;
* Parity recovery is only relevant for PF driver.
*/
if (IS_PF(bp)) {
+ int other_engine = BP_PATH(bp) ? 0 : 1;
+ bool other_load_status, load_status;
+ bool global = false;
+
other_load_status = bnx2x_get_load_status(bp, other_engine);
load_status = bnx2x_get_load_status(bp, BP_PATH(bp));
if (!bnx2x_reset_is_done(bp, BP_PATH(bp)) ||
struct device *dev = &bp->pdev->dev;
if (dma_set_mask(dev, DMA_BIT_MASK(64)) == 0) {
- bp->flags |= USING_DAC_FLAG;
if (dma_set_coherent_mask(dev, DMA_BIT_MASK(64)) != 0) {
dev_err(dev, "dma_set_coherent_mask failed, aborting\n");
return -EIO;
NETIF_F_TSO | NETIF_F_TSO_ECN | NETIF_F_TSO6 | NETIF_F_HIGHDMA;
dev->features |= dev->hw_features | NETIF_F_HW_VLAN_CTAG_RX;
- if (bp->flags & USING_DAC_FLAG)
- dev->features |= NETIF_F_HIGHDMA;
+ dev->features |= NETIF_F_HIGHDMA;
/* Add Loopback capability to the device */
dev->hw_features |= NETIF_F_LOOPBACK;
return BNX2X_MULTI_TX_COS_E1X;
case BCM57712:
case BCM57712_MF:
- case BCM57712_VF:
return BNX2X_MULTI_TX_COS_E2_E3A0;
case BCM57800:
case BCM57800_MF:
- case BCM57800_VF:
case BCM57810:
case BCM57810_MF:
case BCM57840_4_10:
case BCM57840_2_20:
case BCM57840_O:
case BCM57840_MFO:
- case BCM57810_VF:
case BCM57840_MF:
- case BCM57840_VF:
case BCM57811:
case BCM57811_MF:
- case BCM57811_VF:
return BNX2X_MULTI_TX_COS_E3B0;
+ case BCM57712_VF:
+ case BCM57800_VF:
+ case BCM57810_VF:
+ case BCM57840_VF:
+ case BCM57811_VF:
return 1;
default:
pr_err("Unknown board_type (%d), aborting\n", chip_id);
bnx2x_vfop_qdtor, cmd->done);
return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qdtor,
cmd->block);
+ } else {
+ BNX2X_ERR("VF[%d] failed to add a vfop\n", vf->abs_vfid);
+ return -ENOMEM;
}
- DP(BNX2X_MSG_IOV, "VF[%d] failed to add a vfop. rc %d\n",
- vf->abs_vfid, vfop->rc);
- return -ENOMEM;
}
static void
fid = GET_FIELD((val), IGU_REG_MAPPING_MEMORY_FID);
if (fid & IGU_FID_ENCODE_IS_PF)
current_pf = fid & IGU_FID_PF_NUM_MASK;
- else if (current_pf == BP_ABS_FUNC(bp))
+ else if (current_pf == BP_FUNC(bp))
bnx2x_vf_set_igu_info(bp, sb_id,
(fid & IGU_FID_VF_NUM_MASK));
DP(BNX2X_MSG_IOV, "%s[%d], igu_sb_id=%d, msix=%d\n",
/* set local queue arrays */
vf->vfqs = &bp->vfdb->vfqs[qcount];
qcount += vf_sb_count(vf);
+ bnx2x_iov_static_resc(bp, vf);
}
/* prepare msix vectors in VF configuration space */
bnx2x_pretend_func(bp, HW_VF_HANDLE(bp, vf_idx));
REG_WR(bp, PCICFG_OFFSET + GRC_CONFIG_REG_VF_MSIX_CONTROL,
num_vf_queues);
+ DP(BNX2X_MSG_IOV, "set msix vec num in VF %d cfg space to %d\n",
+ vf_idx, num_vf_queues);
}
bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
rc = bnx2x_del_all_macs(bp, mac_obj, BNX2X_ETH_MAC, true);
if (rc) {
BNX2X_ERR("failed to delete eth macs\n");
- return -EINVAL;
+ rc = -EINVAL;
+ goto out;
}
/* remove existing uc list macs */
rc = bnx2x_del_all_macs(bp, mac_obj, BNX2X_UC_LIST_MAC, true);
if (rc) {
BNX2X_ERR("failed to delete uc_list macs\n");
- return -EINVAL;
+ rc = -EINVAL;
+ goto out;
}
/* configure the new mac to device */
bnx2x_set_mac_one(bp, (u8 *)&bulletin->mac, mac_obj, true,
BNX2X_ETH_MAC, &ramrod_flags);
+out:
bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_MAC);
}
&ramrod_flags);
if (rc) {
BNX2X_ERR("failed to delete vlans\n");
- return -EINVAL;
+ rc = -EINVAL;
+ goto out;
}
/* send queue update ramrod to configure default vlan and silent
rc = bnx2x_config_vlan_mac(bp, &ramrod_param);
if (rc) {
BNX2X_ERR("failed to configure vlan\n");
- return -EINVAL;
+ rc = -EINVAL;
+ goto out;
}
/* configure default vlan to vf queue and set silent
rc = bnx2x_queue_state_change(bp, &q_params);
if (rc) {
BNX2X_ERR("Failed to configure default VLAN\n");
- return rc;
+ goto out;
}
/* clear the flag indicating that this VF needs its vlan
- * (will only be set if the HV configured th Vlan before vf was
- * and we were called because the VF came up later
+ * (will only be set if the HV configured the Vlan before vf was
+ * up and we were called because the VF came up later
*/
+out:
vf->cfg_flags &= ~VF_CFG_VLAN;
-
bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_VLAN);
}
- return 0;
+ return rc;
}
/* crc is the first field in the bulletin board. Compute the crc over the
} else if (bp->func_stx) {
*stats_comp = 0;
- bnx2x_post_dmae(bp, dmae, INIT_DMAE_C(bp));
+ bnx2x_issue_dmae_with_comp(bp, dmae, stats_comp);
}
}
dmae.len = len32;
/* issue the command and wait for completion */
- return bnx2x_issue_dmae_with_comp(bp, &dmae);
+ return bnx2x_issue_dmae_with_comp(bp, &dmae, bnx2x_sp(bp, wb_comp));
}
static void bnx2x_vf_mbx_resp(struct bnx2x *bp, struct bnx2x_virtf *vf)
switch (mbx->first_tlv.tl.type) {
case CHANNEL_TLV_ACQUIRE:
bnx2x_vf_mbx_acquire(bp, vf, mbx);
- break;
+ return;
case CHANNEL_TLV_INIT:
bnx2x_vf_mbx_init_vf(bp, vf, mbx);
- break;
+ return;
case CHANNEL_TLV_SETUP_Q:
bnx2x_vf_mbx_setup_q(bp, vf, mbx);
- break;
+ return;
case CHANNEL_TLV_SET_Q_FILTERS:
bnx2x_vf_mbx_set_q_filters(bp, vf, mbx);
- break;
+ return;
case CHANNEL_TLV_TEARDOWN_Q:
bnx2x_vf_mbx_teardown_q(bp, vf, mbx);
- break;
+ return;
case CHANNEL_TLV_CLOSE:
bnx2x_vf_mbx_close_vf(bp, vf, mbx);
- break;
+ return;
case CHANNEL_TLV_RELEASE:
bnx2x_vf_mbx_release_vf(bp, vf, mbx);
- break;
+ return;
case CHANNEL_TLV_UPDATE_RSS:
bnx2x_vf_mbx_update_rss(bp, vf, mbx);
- break;
+ return;
}
} else {
for (i = 0; i < 20; i++)
DP_CONT(BNX2X_MSG_IOV, "%x ",
mbx->msg->req.tlv_buf_size.tlv_buffer[i]);
+ }
- /* test whether we can respond to the VF (do we have an address
- * for it?)
- */
- if (vf->state == VF_ACQUIRED || vf->state == VF_ENABLED) {
- /* mbx_resp uses the op_rc of the VF */
- vf->op_rc = PFVF_STATUS_NOT_SUPPORTED;
+ /* can we respond to VF (do we have an address for it?) */
+ if (vf->state == VF_ACQUIRED || vf->state == VF_ENABLED) {
+ /* mbx_resp uses the op_rc of the VF */
+ vf->op_rc = PFVF_STATUS_NOT_SUPPORTED;
- /* notify the VF that we do not support this request */
- bnx2x_vf_mbx_resp(bp, vf);
- } else {
- /* can't send a response since this VF is unknown to us
- * just ack the FW to release the mailbox and unlock
- * the channel.
- */
- storm_memset_vf_mbx_ack(bp, vf->abs_vfid);
- mmiowb();
- bnx2x_unlock_vf_pf_channel(bp, vf,
- mbx->first_tlv.tl.type);
- }
+ /* notify the VF that we do not support this request */
+ bnx2x_vf_mbx_resp(bp, vf);
+ } else {
+ /* can't send a response since this VF is unknown to us
+ * just ack the FW to release the mailbox and unlock
+ * the channel.
+ */
+ storm_memset_vf_mbx_ack(bp, vf->abs_vfid);
+ /* Firmware ack should be written before unlocking channel */
+ mmiowb();
+ bnx2x_unlock_vf_pf_channel(bp, vf, mbx->first_tlv.tl.type);
}
}
#define XGMAC_DMA_HW_FEATURE 0x00000f58 /* Enabled Hardware Features */
#define XGMAC_ADDR_AE 0x80000000
-#define XGMAC_MAX_FILTER_ADDR 31
/* PMT Control and Status */
#define XGMAC_PMT_POINTER_RESET 0x80000000
struct device *device;
struct napi_struct napi;
+ int max_macs;
struct xgmac_extra_stats xstats;
spinlock_t stats_lock;
netdev_dbg(priv->dev, "# mcasts %d, # unicast %d\n",
netdev_mc_count(dev), netdev_uc_count(dev));
- if (dev->flags & IFF_PROMISC) {
- writel(XGMAC_FRAME_FILTER_PR, ioaddr + XGMAC_FRAME_FILTER);
- return;
- }
+ if (dev->flags & IFF_PROMISC)
+ value |= XGMAC_FRAME_FILTER_PR;
memset(hash_filter, 0, sizeof(hash_filter));
- if (netdev_uc_count(dev) > XGMAC_MAX_FILTER_ADDR) {
+ if (netdev_uc_count(dev) > priv->max_macs) {
use_hash = true;
value |= XGMAC_FRAME_FILTER_HUC | XGMAC_FRAME_FILTER_HPF;
}
goto out;
}
- if ((netdev_mc_count(dev) + reg - 1) > XGMAC_MAX_FILTER_ADDR) {
+ if ((netdev_mc_count(dev) + reg - 1) > priv->max_macs) {
use_hash = true;
value |= XGMAC_FRAME_FILTER_HMC | XGMAC_FRAME_FILTER_HPF;
} else {
}
out:
- for (i = reg; i < XGMAC_MAX_FILTER_ADDR; i++)
- xgmac_set_mac_addr(ioaddr, NULL, reg);
+ for (i = reg; i <= priv->max_macs; i++)
+ xgmac_set_mac_addr(ioaddr, NULL, i);
for (i = 0; i < XGMAC_NUM_HASH; i++)
writel(hash_filter[i], ioaddr + XGMAC_HASH(i));
uid = readl(priv->base + XGMAC_VERSION);
netdev_info(ndev, "h/w version is 0x%x\n", uid);
+ /* Figure out how many valid mac address filter registers we have */
+ writel(1, priv->base + XGMAC_ADDR_HIGH(31));
+ if (readl(priv->base + XGMAC_ADDR_HIGH(31)) == 1)
+ priv->max_macs = 31;
+ else
+ priv->max_macs = 7;
+
writel(0, priv->base + XGMAC_DMA_INTR_ENA);
ndev->irq = platform_get_irq(pdev, 0);
if (ndev->irq == -ENXIO) {
/* DM9000 network board routine ---------------------------- */
-static void
-dm9000_reset(board_info_t * db)
-{
- dev_dbg(db->dev, "resetting device\n");
-
- /* RESET device */
- writeb(DM9000_NCR, db->io_addr);
- udelay(200);
- writeb(NCR_RST, db->io_data);
- udelay(200);
-}
-
/*
* Read a byte from I/O port
*/
writeb(value, db->io_data);
}
+static void
+dm9000_reset(board_info_t *db)
+{
+ dev_dbg(db->dev, "resetting device\n");
+
+ /* Reset DM9000, see DM9000 Application Notes V1.22 Jun 11, 2004 page 29
+ * The essential point is that we have to do a double reset, and the
+ * instruction is to set LBK into MAC internal loopback mode.
+ */
+ iow(db, DM9000_NCR, 0x03);
+ udelay(100); /* Application note says at least 20 us */
+ if (ior(db, DM9000_NCR) & 1)
+ dev_err(db->dev, "dm9000 did not respond to first reset\n");
+
+ iow(db, DM9000_NCR, 0);
+ iow(db, DM9000_NCR, 0x03);
+ udelay(100);
+ if (ior(db, DM9000_NCR) & 1)
+ dev_err(db->dev, "dm9000 did not respond to second reset\n");
+}
+
/* routines for sending block to chip */
static void dm9000_outblk_8bit(void __iomem *reg, void *data, int count)
static void dm9000_show_carrier(board_info_t *db,
unsigned carrier, unsigned nsr)
{
+ int lpa;
struct net_device *ndev = db->ndev;
+ struct mii_if_info *mii = &db->mii;
unsigned ncr = dm9000_read_locked(db, DM9000_NCR);
- if (carrier)
- dev_info(db->dev, "%s: link up, %dMbps, %s-duplex, no LPA\n",
+ if (carrier) {
+ lpa = mii->mdio_read(mii->dev, mii->phy_id, MII_LPA);
+ dev_info(db->dev,
+ "%s: link up, %dMbps, %s-duplex, lpa 0x%04X\n",
ndev->name, (nsr & NSR_SPEED) ? 10 : 100,
- (ncr & NCR_FDX) ? "full" : "half");
- else
+ (ncr & NCR_FDX) ? "full" : "half", lpa);
+ } else {
dev_info(db->dev, "%s: link down\n", ndev->name);
+ }
}
static void
(dev->features & NETIF_F_RXCSUM) ? RCSR_CSUM : 0);
iow(db, DM9000_GPCR, GPCR_GEP_CNTL); /* Let GPIO0 output */
+ iow(db, DM9000_GPR, 0);
- dm9000_phy_write(dev, 0, MII_BMCR, BMCR_RESET); /* PHY RESET */
- dm9000_phy_write(dev, 0, MII_DM_DSPCR, DSPCR_INIT_PARAM); /* Init */
+ /* If we are dealing with DM9000B, some extra steps are required: a
+ * manual phy reset, and setting init params.
+ */
+ if (db->type == TYPE_DM9000B) {
+ dm9000_phy_write(dev, 0, MII_BMCR, BMCR_RESET);
+ dm9000_phy_write(dev, 0, MII_DM_DSPCR, DSPCR_INIT_PARAM);
+ }
ncr = (db->flags & DM9000_PLATF_EXT_PHY) ? NCR_EXT_PHY : 0;
#define BE_MIN_MTU 256
#define BE_NUM_VLANS_SUPPORTED 64
+#define BE_UMC_NUM_VLANS_SUPPORTED 15
#define BE_MAX_EQD 96u
#define BE_MAX_TX_FRAG_COUNT 30
#define BE_FLAGS_LINK_STATUS_INIT 1
#define BE_FLAGS_WORKER_SCHEDULED (1 << 3)
+#define BE_FLAGS_VLAN_PROMISC (1 << 4)
#define BE_FLAGS_NAPI_ENABLED (1 << 9)
#define BE_UC_PMAC_COUNT 30
#define BE_VF_UC_PMAC_COUNT 2
dev_err(&adapter->pdev->dev,
"opcode %d-%d failed:status %d-%d\n",
opcode, subsystem, compl_status, extd_status);
+
+ if (extd_status == MCC_ADDL_STS_INSUFFICIENT_RESOURCES)
+ return extd_status;
}
}
done:
if (lancer_chip(adapter)) {
req->hdr.version = 1;
- req->if_id = cpu_to_le16(adapter->if_handle);
} else if (BEx_chip(adapter)) {
if (adapter->function_caps & BE_FUNCTION_CAPS_SUPER_NIC)
req->hdr.version = 2;
req->hdr.version = 2;
}
+ if (req->hdr.version > 0)
+ req->if_id = cpu_to_le16(adapter->if_handle);
req->num_pages = PAGES_4K_SPANNED(q_mem->va, q_mem->size);
req->ulp_num = BE_ULP1_NUM;
req->type = BE_ETH_TX_RING_TYPE_STANDARD;
} else if (flags & IFF_ALLMULTI) {
req->if_flags_mask = req->if_flags =
cpu_to_le32(BE_IF_FLAGS_MCAST_PROMISCUOUS);
+ } else if (flags & BE_FLAGS_VLAN_PROMISC) {
+ req->if_flags_mask = cpu_to_le32(BE_IF_FLAGS_VLAN_PROMISCUOUS);
+
+ if (value == ON)
+ req->if_flags =
+ cpu_to_le32(BE_IF_FLAGS_VLAN_PROMISCUOUS);
} else {
struct netdev_hw_addr *ha;
int i = 0;
MCC_STATUS_NOT_SUPPORTED = 66
};
+#define MCC_ADDL_STS_INSUFFICIENT_RESOURCES 0x16
+
#define CQE_STATUS_COMPL_MASK 0xFFFF
#define CQE_STATUS_COMPL_SHIFT 0 /* bits 0 - 15 */
#define CQE_STATUS_EXTD_MASK 0xFFFF
u8 acpi_params;
u8 wol_param;
u16 rsvd7;
- u32 rsvd8[3];
+ u32 rsvd8[7];
} __packed;
struct be_cmd_req_get_func_config {
unsigned int eth_hdr_len;
struct iphdr *ip;
- /* Lancer ASIC has a bug wherein packets that are 32 bytes or less
+ /* Lancer, SH-R ASICs have a bug wherein Packets that are 32 bytes or less
* may cause a transmit stall on that port. So the work-around is to
- * pad such packets to a 36-byte length.
+ * pad short packets (<= 32 bytes) to a 36-byte length.
*/
- if (unlikely(lancer_chip(adapter) && skb->len <= 32)) {
+ if (unlikely(!BEx_chip(adapter) && skb->len <= 32)) {
if (skb_padto(skb, 36))
goto tx_drop;
skb->len = 36;
status = be_cmd_vlan_config(adapter, adapter->if_handle,
vids, num, 1, 0);
- /* Set to VLAN promisc mode as setting VLAN filter failed */
if (status) {
- dev_info(&adapter->pdev->dev, "Exhausted VLAN HW filters.\n");
- dev_info(&adapter->pdev->dev, "Disabling HW VLAN filtering.\n");
- goto set_vlan_promisc;
+ /* Set to VLAN promisc mode as setting VLAN filter failed */
+ if (status == MCC_ADDL_STS_INSUFFICIENT_RESOURCES)
+ goto set_vlan_promisc;
+ dev_err(&adapter->pdev->dev,
+ "Setting HW VLAN filtering failed.\n");
+ } else {
+ if (adapter->flags & BE_FLAGS_VLAN_PROMISC) {
+ /* hw VLAN filtering re-enabled. */
+ status = be_cmd_rx_filter(adapter,
+ BE_FLAGS_VLAN_PROMISC, OFF);
+ if (!status) {
+ dev_info(&adapter->pdev->dev,
+ "Disabling VLAN Promiscuous mode.\n");
+ adapter->flags &= ~BE_FLAGS_VLAN_PROMISC;
+ dev_info(&adapter->pdev->dev,
+ "Re-Enabling HW VLAN filtering\n");
+ }
+ }
}
return status;
set_vlan_promisc:
- status = be_cmd_vlan_config(adapter, adapter->if_handle,
- NULL, 0, 1, 1);
+ dev_warn(&adapter->pdev->dev, "Exhausted VLAN HW filters.\n");
+
+ status = be_cmd_rx_filter(adapter, BE_FLAGS_VLAN_PROMISC, ON);
+ if (!status) {
+ dev_info(&adapter->pdev->dev, "Enable VLAN Promiscuous mode\n");
+ dev_info(&adapter->pdev->dev, "Disabling HW VLAN filtering\n");
+ adapter->flags |= BE_FLAGS_VLAN_PROMISC;
+ } else
+ dev_err(&adapter->pdev->dev,
+ "Failed to enable VLAN Promiscuous mode.\n");
return status;
}
struct be_adapter *adapter = netdev_priv(netdev);
int status = 0;
- if (!lancer_chip(adapter) && !be_physfn(adapter)) {
- status = -EINVAL;
- goto ret;
- }
/* Packets with VID 0 are always received by Lancer by default */
if (lancer_chip(adapter) && vid == 0)
struct be_adapter *adapter = netdev_priv(netdev);
int status = 0;
- if (!lancer_chip(adapter) && !be_physfn(adapter)) {
- status = -EINVAL;
- goto ret;
- }
-
/* Packets with VID 0 are always received by Lancer by default */
if (lancer_chip(adapter) && vid == 0)
goto ret;
vi->vf = vf;
vi->tx_rate = vf_cfg->tx_rate;
- vi->vlan = vf_cfg->vlan_tag;
- vi->qos = 0;
+ vi->vlan = vf_cfg->vlan_tag & VLAN_VID_MASK;
+ vi->qos = vf_cfg->vlan_tag >> VLAN_PRIO_SHIFT;
memcpy(&vi->mac, vf_cfg->mac_addr, ETH_ALEN);
return 0;
int vf, u16 vlan, u8 qos)
{
struct be_adapter *adapter = netdev_priv(netdev);
+ struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
int status = 0;
if (!sriov_enabled(adapter))
return -EPERM;
- if (vf >= adapter->num_vfs || vlan > 4095)
+ if (vf >= adapter->num_vfs || vlan > 4095 || qos > 7)
return -EINVAL;
- if (vlan) {
- if (adapter->vf_cfg[vf].vlan_tag != vlan) {
+ if (vlan || qos) {
+ vlan |= qos << VLAN_PRIO_SHIFT;
+ if (vf_cfg->vlan_tag != vlan) {
/* If this is new value, program it. Else skip. */
- adapter->vf_cfg[vf].vlan_tag = vlan;
-
- status = be_cmd_set_hsw_config(adapter, vlan,
- vf + 1, adapter->vf_cfg[vf].if_handle, 0);
+ vf_cfg->vlan_tag = vlan;
+ status = be_cmd_set_hsw_config(adapter, vlan, vf + 1,
+ vf_cfg->if_handle, 0);
}
} else {
/* Reset Transparent Vlan Tagging. */
- adapter->vf_cfg[vf].vlan_tag = 0;
- vlan = adapter->vf_cfg[vf].def_vid;
+ vf_cfg->vlan_tag = 0;
+ vlan = vf_cfg->def_vid;
status = be_cmd_set_hsw_config(adapter, vlan, vf + 1,
- adapter->vf_cfg[vf].if_handle, 0);
+ vf_cfg->if_handle, 0);
}
if (adapter->function_mode & FLEX10_MODE)
res->max_vlans = BE_NUM_VLANS_SUPPORTED/8;
+ else if (adapter->function_mode & UMC_ENABLED)
+ res->max_vlans = BE_UMC_NUM_VLANS_SUPPORTED;
else
res->max_vlans = BE_NUM_VLANS_SUPPORTED;
res->max_mcast_mac = BE_MAX_MC;
#include <asm/io.h>
#include <asm/reg.h>
+#include <asm/mpc85xx.h>
#include <asm/irq.h>
#include <asm/uaccess.h>
#include <linux/module.h>
}
}
-static void gfar_detect_errata(struct gfar_private *priv)
+static void __gfar_detect_errata_83xx(struct gfar_private *priv)
{
- struct device *dev = &priv->ofdev->dev;
unsigned int pvr = mfspr(SPRN_PVR);
unsigned int svr = mfspr(SPRN_SVR);
unsigned int mod = (svr >> 16) & 0xfff6; /* w/o E suffix */
(pvr == 0x80861010 && (mod & 0xfff9) == 0x80c0))
priv->errata |= GFAR_ERRATA_76;
- /* MPC8313 and MPC837x all rev */
- if ((pvr == 0x80850010 && mod == 0x80b0) ||
- (pvr == 0x80861010 && (mod & 0xfff9) == 0x80c0))
- priv->errata |= GFAR_ERRATA_A002;
+ /* MPC8313 Rev < 2.0 */
+ if (pvr == 0x80850010 && mod == 0x80b0 && rev < 0x0020)
+ priv->errata |= GFAR_ERRATA_12;
+}
- /* MPC8313 Rev < 2.0, MPC8548 rev 2.0 */
- if ((pvr == 0x80850010 && mod == 0x80b0 && rev < 0x0020) ||
- (pvr == 0x80210020 && mod == 0x8030 && rev == 0x0020))
+static void __gfar_detect_errata_85xx(struct gfar_private *priv)
+{
+ unsigned int svr = mfspr(SPRN_SVR);
+
+ if ((SVR_SOC_VER(svr) == SVR_8548) && (SVR_REV(svr) == 0x20))
priv->errata |= GFAR_ERRATA_12;
+ if (((SVR_SOC_VER(svr) == SVR_P2020) && (SVR_REV(svr) < 0x20)) ||
+ ((SVR_SOC_VER(svr) == SVR_P2010) && (SVR_REV(svr) < 0x20)))
+ priv->errata |= GFAR_ERRATA_76; /* aka eTSEC 20 */
+}
+
+static void gfar_detect_errata(struct gfar_private *priv)
+{
+ struct device *dev = &priv->ofdev->dev;
+
+ /* no plans to fix */
+ priv->errata |= GFAR_ERRATA_A002;
+
+ if (pvr_version_is(PVR_VER_E500V1) || pvr_version_is(PVR_VER_E500V2))
+ __gfar_detect_errata_85xx(priv);
+ else /* non-mpc85xx parts, i.e. e300 core based */
+ __gfar_detect_errata_83xx(priv);
if (priv->errata)
dev_info(dev, "enabled errata workarounds, flags: 0x%x\n",
/* Normaly TSEC should not hang on GRS commands, so we should
* actually wait for IEVENT_GRSC flag.
*/
- if (likely(!gfar_has_errata(priv, GFAR_ERRATA_A002)))
+ if (!gfar_has_errata(priv, GFAR_ERRATA_A002))
return 0;
/* Read the eTSEC register at offset 0xD1C. If bits 7-14 are
err = -ENODEV;
etsects->caps = ptp_gianfar_caps;
- etsects->cksel = DEFAULT_CKSEL;
+
+ if (get_of_u32(node, "fsl,cksel", &etsects->cksel))
+ etsects->cksel = DEFAULT_CKSEL;
if (get_of_u32(node, "fsl,tclk-period", &etsects->tclk_period) ||
get_of_u32(node, "fsl,tmr-prsc", &etsects->tmr_prsc) ||
details = I40E_ADMINQ_DETAILS(hw->aq.asq, hw->aq.asq.next_to_use);
if (cmd_details) {
- memcpy(details, cmd_details,
- sizeof(struct i40e_asq_cmd_details));
+ *details = *cmd_details;
/* If the cmd_details are defined copy the cookie. The
* cpu_to_le32 is not needed here because the data is ignored
desc_on_ring = I40E_ADMINQ_DESC(hw->aq.asq, hw->aq.asq.next_to_use);
/* if the desc is available copy the temp desc to the right place */
- memcpy(desc_on_ring, desc, sizeof(struct i40e_aq_desc));
+ *desc_on_ring = *desc;
/* if buff is not NULL assume indirect command */
if (buff != NULL) {
/* if ready, copy the desc back to temp */
if (i40e_asq_done(hw)) {
- memcpy(desc, desc_on_ring, sizeof(struct i40e_aq_desc));
+ *desc = *desc_on_ring;
if (buff != NULL)
memcpy(buff, dma_buff->va, buff_size);
retval = le16_to_cpu(desc->retval);
/* save link status information */
if (link)
- memcpy(link, hw_link_info, sizeof(struct i40e_link_status));
+ *link = *hw_link_info;
/* flag cleared so helper functions don't call AQ again */
hw->phy.get_link_info = false;
mem->size = ALIGN(size, alignment);
mem->va = dma_zalloc_coherent(&pf->pdev->dev, mem->size,
&mem->pa, GFP_KERNEL);
- if (mem->va)
- return 0;
+ if (!mem->va)
+ return -ENOMEM;
- return -ENOMEM;
+ return 0;
}
/**
mem->size = size;
mem->va = kzalloc(size, GFP_KERNEL);
- if (mem->va)
- return 0;
+ if (!mem->va)
+ return -ENOMEM;
- return -ENOMEM;
+ return 0;
}
/**
u16 needed, u16 id)
{
int ret = -ENOMEM;
- int i = 0;
- int j = 0;
+ int i, j;
if (!pile || needed == 0 || id >= I40E_PILE_VALID_BIT) {
dev_info(&pf->pdev->dev,
/* start the linear search with an imperfect hint */
i = pile->search_hint;
- while (i < pile->num_entries && ret < 0) {
+ while (i < pile->num_entries) {
/* skip already allocated entries */
if (pile->list[i] & I40E_PILE_VALID_BIT) {
i++;
pile->list[i+j] = id | I40E_PILE_VALID_BIT;
ret = i;
pile->search_hint = i + j;
+ break;
} else {
/* not enough, so skip over it and continue looking */
i += j;
bool add_happened = false;
int filter_list_len = 0;
u32 changed_flags = 0;
- i40e_status ret = 0;
+ i40e_status aq_ret = 0;
struct i40e_pf *pf;
int num_add = 0;
int num_del = 0;
/* flush a full buffer */
if (num_del == filter_list_len) {
- ret = i40e_aq_remove_macvlan(&pf->hw,
+ aq_ret = i40e_aq_remove_macvlan(&pf->hw,
vsi->seid, del_list, num_del,
NULL);
num_del = 0;
memset(del_list, 0, sizeof(*del_list));
- if (ret)
+ if (aq_ret)
dev_info(&pf->pdev->dev,
"ignoring delete macvlan error, err %d, aq_err %d while flushing a full buffer\n",
- ret,
+ aq_ret,
pf->hw.aq.asq_last_status);
}
}
if (num_del) {
- ret = i40e_aq_remove_macvlan(&pf->hw, vsi->seid,
+ aq_ret = i40e_aq_remove_macvlan(&pf->hw, vsi->seid,
del_list, num_del, NULL);
num_del = 0;
- if (ret)
+ if (aq_ret)
dev_info(&pf->pdev->dev,
"ignoring delete macvlan error, err %d, aq_err %d\n",
- ret, pf->hw.aq.asq_last_status);
+ aq_ret, pf->hw.aq.asq_last_status);
}
kfree(del_list);
/* flush a full buffer */
if (num_add == filter_list_len) {
- ret = i40e_aq_add_macvlan(&pf->hw,
- vsi->seid,
- add_list,
- num_add,
- NULL);
+ aq_ret = i40e_aq_add_macvlan(&pf->hw, vsi->seid,
+ add_list, num_add,
+ NULL);
num_add = 0;
- if (ret)
+ if (aq_ret)
break;
memset(add_list, 0, sizeof(*add_list));
}
}
if (num_add) {
- ret = i40e_aq_add_macvlan(&pf->hw, vsi->seid,
- add_list, num_add, NULL);
+ aq_ret = i40e_aq_add_macvlan(&pf->hw, vsi->seid,
+ add_list, num_add, NULL);
num_add = 0;
}
kfree(add_list);
add_list = NULL;
- if (add_happened && (!ret)) {
+ if (add_happened && (!aq_ret)) {
/* do nothing */;
- } else if (add_happened && (ret)) {
+ } else if (add_happened && (aq_ret)) {
dev_info(&pf->pdev->dev,
"add filter failed, err %d, aq_err %d\n",
- ret, pf->hw.aq.asq_last_status);
+ aq_ret, pf->hw.aq.asq_last_status);
if ((pf->hw.aq.asq_last_status == I40E_AQ_RC_ENOSPC) &&
!test_bit(__I40E_FILTER_OVERFLOW_PROMISC,
&vsi->state)) {
if (changed_flags & IFF_ALLMULTI) {
bool cur_multipromisc;
cur_multipromisc = !!(vsi->current_netdev_flags & IFF_ALLMULTI);
- ret = i40e_aq_set_vsi_multicast_promiscuous(&vsi->back->hw,
- vsi->seid,
- cur_multipromisc,
- NULL);
- if (ret)
+ aq_ret = i40e_aq_set_vsi_multicast_promiscuous(&vsi->back->hw,
+ vsi->seid,
+ cur_multipromisc,
+ NULL);
+ if (aq_ret)
dev_info(&pf->pdev->dev,
"set multi promisc failed, err %d, aq_err %d\n",
- ret, pf->hw.aq.asq_last_status);
+ aq_ret, pf->hw.aq.asq_last_status);
}
if ((changed_flags & IFF_PROMISC) || promisc_forced_on) {
bool cur_promisc;
cur_promisc = (!!(vsi->current_netdev_flags & IFF_PROMISC) ||
test_bit(__I40E_FILTER_OVERFLOW_PROMISC,
&vsi->state));
- ret = i40e_aq_set_vsi_unicast_promiscuous(&vsi->back->hw,
- vsi->seid,
- cur_promisc,
- NULL);
- if (ret)
+ aq_ret = i40e_aq_set_vsi_unicast_promiscuous(&vsi->back->hw,
+ vsi->seid,
+ cur_promisc, NULL);
+ if (aq_ret)
dev_info(&pf->pdev->dev,
"set uni promisc failed, err %d, aq_err %d\n",
- ret, pf->hw.aq.asq_last_status);
+ aq_ret, pf->hw.aq.asq_last_status);
}
clear_bit(__I40E_CONFIG_BUSY, &vsi->state);
* i40e_vsi_kill_vlan - Remove vsi membership for given vlan
* @vsi: the vsi being configured
* @vid: vlan id to be removed (0 = untagged only , -1 = any)
+ *
+ * Return: 0 on success or negative otherwise
**/
int i40e_vsi_kill_vlan(struct i40e_vsi *vsi, s16 vid)
{
* i40e_vlan_rx_add_vid - Add a vlan id filter to HW offload
* @netdev: network interface to be adjusted
* @vid: vlan id to be added
+ *
+ * net_device_ops implementation for adding vlan ids
**/
static int i40e_vlan_rx_add_vid(struct net_device *netdev,
__always_unused __be16 proto, u16 vid)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_vsi *vsi = np->vsi;
- int ret;
+ int ret = 0;
if (vid > 4095)
- return 0;
+ return -EINVAL;
+
+ netdev_info(netdev, "adding %pM vid=%d\n", netdev->dev_addr, vid);
- netdev_info(vsi->netdev, "adding %pM vid=%d\n",
- netdev->dev_addr, vid);
/* If the network stack called us with vid = 0, we should
* indicate to i40e_vsi_add_vlan() that we want to receive
* any traffic (i.e. with any vlan tag, or untagged)
*/
ret = i40e_vsi_add_vlan(vsi, vid ? vid : I40E_VLAN_ANY);
- if (!ret) {
- if (vid < VLAN_N_VID)
- set_bit(vid, vsi->active_vlans);
- }
+ if (!ret && (vid < VLAN_N_VID))
+ set_bit(vid, vsi->active_vlans);
- return 0;
+ return ret;
}
/**
* i40e_vlan_rx_kill_vid - Remove a vlan id filter from HW offload
* @netdev: network interface to be adjusted
* @vid: vlan id to be removed
+ *
+ * net_device_ops implementation for adding vlan ids
**/
static int i40e_vlan_rx_kill_vid(struct net_device *netdev,
__always_unused __be16 proto, u16 vid)
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_vsi *vsi = np->vsi;
- netdev_info(vsi->netdev, "removing %pM vid=%d\n",
- netdev->dev_addr, vid);
+ netdev_info(netdev, "removing %pM vid=%d\n", netdev->dev_addr, vid);
+
/* return code is ignored as there is nothing a user
* can do about failure to remove and a log message was
- * already printed from another function
+ * already printed from the other function
*/
i40e_vsi_kill_vlan(vsi, vid);
clear_bit(vid, vsi->active_vlans);
+
return 0;
}
* @vsi: the vsi being adjusted
* @vid: the vlan id to set as a PVID
**/
-i40e_status i40e_vsi_add_pvid(struct i40e_vsi *vsi, u16 vid)
+int i40e_vsi_add_pvid(struct i40e_vsi *vsi, u16 vid)
{
struct i40e_vsi_context ctxt;
- i40e_status ret;
+ i40e_status aq_ret;
vsi->info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID);
vsi->info.pvid = cpu_to_le16(vid);
ctxt.seid = vsi->seid;
memcpy(&ctxt.info, &vsi->info, sizeof(vsi->info));
- ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL);
- if (ret) {
+ aq_ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL);
+ if (aq_ret) {
dev_info(&vsi->back->pdev->dev,
"%s: update vsi failed, aq_err=%d\n",
__func__, vsi->back->hw.aq.asq_last_status);
+ return -ENOENT;
}
- return ret;
+ return 0;
}
/**
**/
static u8 i40e_dcb_get_num_tc(struct i40e_dcbx_config *dcbcfg)
{
- int num_tc = 0, i;
+ u8 num_tc = 0;
+ int i;
/* Scan the ETS Config Priority Table to find
* traffic class enabled for a given priority
/* Traffic class index starts from zero so
* increment to return the actual count
*/
- num_tc++;
-
- return num_tc;
+ return num_tc + 1;
}
/**
struct i40e_aqc_query_vsi_bw_config_resp bw_config = {0};
struct i40e_pf *pf = vsi->back;
struct i40e_hw *hw = &pf->hw;
+ i40e_status aq_ret;
u32 tc_bw_max;
- int ret;
int i;
/* Get the VSI level BW configuration */
- ret = i40e_aq_query_vsi_bw_config(hw, vsi->seid, &bw_config, NULL);
- if (ret) {
+ aq_ret = i40e_aq_query_vsi_bw_config(hw, vsi->seid, &bw_config, NULL);
+ if (aq_ret) {
dev_info(&pf->pdev->dev,
"couldn't get pf vsi bw config, err %d, aq_err %d\n",
- ret, pf->hw.aq.asq_last_status);
- return ret;
+ aq_ret, pf->hw.aq.asq_last_status);
+ return -EINVAL;
}
/* Get the VSI level BW configuration per TC */
- ret = i40e_aq_query_vsi_ets_sla_config(hw, vsi->seid,
- &bw_ets_config,
- NULL);
- if (ret) {
+ aq_ret = i40e_aq_query_vsi_ets_sla_config(hw, vsi->seid, &bw_ets_config,
+ NULL);
+ if (aq_ret) {
dev_info(&pf->pdev->dev,
"couldn't get pf vsi ets bw config, err %d, aq_err %d\n",
- ret, pf->hw.aq.asq_last_status);
- return ret;
+ aq_ret, pf->hw.aq.asq_last_status);
+ return -EINVAL;
}
if (bw_config.tc_valid_bits != bw_ets_config.tc_valid_bits) {
/* 3 bits out of 4 for each TC */
vsi->bw_ets_max_quanta[i] = (u8)((tc_bw_max >> (i*4)) & 0x7);
}
- return ret;
+
+ return 0;
}
/**
*
* Returns 0 on success, negative value on failure
**/
-static int i40e_vsi_configure_bw_alloc(struct i40e_vsi *vsi,
- u8 enabled_tc,
+static int i40e_vsi_configure_bw_alloc(struct i40e_vsi *vsi, u8 enabled_tc,
u8 *bw_share)
{
struct i40e_aqc_configure_vsi_tc_bw_data bw_data;
- int i, ret = 0;
+ i40e_status aq_ret;
+ int i;
bw_data.tc_valid_bits = enabled_tc;
for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
bw_data.tc_bw_credits[i] = bw_share[i];
- ret = i40e_aq_config_vsi_tc_bw(&vsi->back->hw, vsi->seid,
- &bw_data, NULL);
- if (ret) {
+ aq_ret = i40e_aq_config_vsi_tc_bw(&vsi->back->hw, vsi->seid, &bw_data,
+ NULL);
+ if (aq_ret) {
dev_info(&vsi->back->pdev->dev,
"%s: AQ command Config VSI BW allocation per TC failed = %d\n",
__func__, vsi->back->hw.aq.asq_last_status);
- return ret;
+ return -EINVAL;
}
for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
vsi->info.qs_handle[i] = bw_data.qs_handles[i];
- return ret;
+ return 0;
}
/**
igb_write_phy_reg(hw, I347AT4_PAGE_SELECT, 0);
igb_write_phy_reg(hw, PHY_CONTROL, 0x4140);
}
+ } else if (hw->phy.type == e1000_phy_82580) {
+ /* enable MII loopback */
+ igb_write_phy_reg(hw, I82580_PHY_LBK_CTRL, 0x8041);
}
/* add small delay to avoid loopback test failure */
(hw->phy.media_type != e1000_media_type_copper))
return -EOPNOTSUPP;
+ memset(&eee_curr, 0, sizeof(struct ethtool_eee));
+
ret_val = igb_get_eee(netdev, &eee_curr);
if (ret_val)
return ret_val;
p->rx_discard += rdlp(mp, RX_DISCARD_FRAME_CNT);
p->rx_overrun += rdlp(mp, RX_OVERRUN_FRAME_CNT);
spin_unlock_bh(&mp->mib_counters_lock);
-
- mod_timer(&mp->mib_counters_timer, jiffies + 30 * HZ);
}
static void mib_counters_timer_wrapper(unsigned long _mp)
{
struct mv643xx_eth_private *mp = (void *)_mp;
-
mib_counters_update(mp);
+ mod_timer(&mp->mib_counters_timer, jiffies + 30 * HZ);
}
mp->int_mask |= INT_TX_END_0 << i;
}
+ add_timer(&mp->mib_counters_timer);
port_start(mp);
wrlp(mp, INT_MASK_EXT, INT_EXT_LINK_PHY | INT_EXT_TX);
if (!ppdev)
return -ENOMEM;
ppdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+ ppdev->dev.of_node = pnp;
ret = platform_device_add_resources(ppdev, &res, 1);
if (ret)
mp->mib_counters_timer.data = (unsigned long)mp;
mp->mib_counters_timer.function = mib_counters_timer_wrapper;
mp->mib_counters_timer.expires = jiffies + 30 * HZ;
- add_timer(&mp->mib_counters_timer);
spin_lock_init(&mp->mib_counters_lock);
PCI_DMA_FROMDEVICE);
skge_rx_reuse(e, skge->rx_buf_size);
} else {
+ struct skge_element ee;
struct sk_buff *nskb;
nskb = netdev_alloc_skb_ip_align(dev, skge->rx_buf_size);
if (!nskb)
goto resubmit;
- skb = e->skb;
+ ee = *e;
+
+ skb = ee.skb;
prefetch(skb->data);
if (skge_rx_setup(skge, e, nskb, skge->rx_buf_size) < 0) {
}
pci_unmap_single(skge->hw->pdev,
- dma_unmap_addr(e, mapaddr),
- dma_unmap_len(e, maplen),
+ dma_unmap_addr(&ee, mapaddr),
+ dma_unmap_len(&ee, maplen),
PCI_DMA_FROMDEVICE);
}
put_page(page);
return -ENOMEM;
}
- page_alloc->size = PAGE_SIZE << order;
+ page_alloc->page_size = PAGE_SIZE << order;
page_alloc->page = page;
page_alloc->dma = dma;
- page_alloc->offset = frag_info->frag_align;
+ page_alloc->page_offset = frag_info->frag_align;
/* Not doing get_page() for each frag is a big win
* on asymetric workloads.
*/
- atomic_set(&page->_count, page_alloc->size / frag_info->frag_stride);
+ atomic_set(&page->_count,
+ page_alloc->page_size / frag_info->frag_stride);
return 0;
}
for (i = 0; i < priv->num_frags; i++) {
frag_info = &priv->frag_info[i];
page_alloc[i] = ring_alloc[i];
- page_alloc[i].offset += frag_info->frag_stride;
- if (page_alloc[i].offset + frag_info->frag_stride <= ring_alloc[i].size)
+ page_alloc[i].page_offset += frag_info->frag_stride;
+
+ if (page_alloc[i].page_offset + frag_info->frag_stride <=
+ ring_alloc[i].page_size)
continue;
+
if (mlx4_alloc_pages(priv, &page_alloc[i], frag_info, gfp))
goto out;
}
for (i = 0; i < priv->num_frags; i++) {
frags[i] = ring_alloc[i];
- dma = ring_alloc[i].dma + ring_alloc[i].offset;
+ dma = ring_alloc[i].dma + ring_alloc[i].page_offset;
ring_alloc[i] = page_alloc[i];
rx_desc->data[i].addr = cpu_to_be64(dma);
}
frag_info = &priv->frag_info[i];
if (page_alloc[i].page != ring_alloc[i].page) {
dma_unmap_page(priv->ddev, page_alloc[i].dma,
- page_alloc[i].size, PCI_DMA_FROMDEVICE);
+ page_alloc[i].page_size, PCI_DMA_FROMDEVICE);
page = page_alloc[i].page;
atomic_set(&page->_count, 1);
put_page(page);
int i)
{
const struct mlx4_en_frag_info *frag_info = &priv->frag_info[i];
+ u32 next_frag_end = frags[i].page_offset + 2 * frag_info->frag_stride;
+
- if (frags[i].offset + frag_info->frag_stride > frags[i].size)
- dma_unmap_page(priv->ddev, frags[i].dma, frags[i].size,
- PCI_DMA_FROMDEVICE);
+ if (next_frag_end > frags[i].page_size)
+ dma_unmap_page(priv->ddev, frags[i].dma, frags[i].page_size,
+ PCI_DMA_FROMDEVICE);
if (frags[i].page)
put_page(frags[i].page);
page_alloc = &ring->page_alloc[i];
dma_unmap_page(priv->ddev, page_alloc->dma,
- page_alloc->size, PCI_DMA_FROMDEVICE);
+ page_alloc->page_size, PCI_DMA_FROMDEVICE);
page = page_alloc->page;
atomic_set(&page->_count, 1);
put_page(page);
i, page_count(page_alloc->page));
dma_unmap_page(priv->ddev, page_alloc->dma,
- page_alloc->size, PCI_DMA_FROMDEVICE);
- while (page_alloc->offset + frag_info->frag_stride < page_alloc->size) {
+ page_alloc->page_size, PCI_DMA_FROMDEVICE);
+ while (page_alloc->page_offset + frag_info->frag_stride <
+ page_alloc->page_size) {
put_page(page_alloc->page);
- page_alloc->offset += frag_info->frag_stride;
+ page_alloc->page_offset += frag_info->frag_stride;
}
page_alloc->page = NULL;
}
/* Save page reference in skb */
__skb_frag_set_page(&skb_frags_rx[nr], frags[nr].page);
skb_frag_size_set(&skb_frags_rx[nr], frag_info->frag_size);
- skb_frags_rx[nr].page_offset = frags[nr].offset;
+ skb_frags_rx[nr].page_offset = frags[nr].page_offset;
skb->truesize += frag_info->frag_stride;
frags[nr].page = NULL;
}
/* Get pointer to first fragment so we could copy the headers into the
* (linear part of the) skb */
- va = page_address(frags[0].page) + frags[0].offset;
+ va = page_address(frags[0].page) + frags[0].page_offset;
if (length <= SMALL_PACKET_SIZE) {
/* We are copying all relevant data to the skb - temporarily
dma_sync_single_for_cpu(priv->ddev, dma, sizeof(*ethh),
DMA_FROM_DEVICE);
ethh = (struct ethhdr *)(page_address(frags[0].page) +
- frags[0].offset);
+ frags[0].page_offset);
if (is_multicast_ether_addr(ethh->h_dest)) {
struct mlx4_mac_entry *entry;
struct mlx4_en_rx_alloc {
struct page *page;
dma_addr_t dma;
- u32 offset;
- u32 size;
+ u32 page_offset;
+ u32 page_size;
};
struct mlx4_en_tx_ring {
return 0;
}
-static void calc_block_sig(struct mlx5_cmd_prot_block *block, u8 token)
+static void calc_block_sig(struct mlx5_cmd_prot_block *block, u8 token,
+ int csum)
{
block->token = token;
- block->ctrl_sig = ~xor8_buf(block->rsvd0, sizeof(*block) - sizeof(block->data) - 2);
- block->sig = ~xor8_buf(block, sizeof(*block) - 1);
+ if (csum) {
+ block->ctrl_sig = ~xor8_buf(block->rsvd0, sizeof(*block) -
+ sizeof(block->data) - 2);
+ block->sig = ~xor8_buf(block, sizeof(*block) - 1);
+ }
}
-static void calc_chain_sig(struct mlx5_cmd_msg *msg, u8 token)
+static void calc_chain_sig(struct mlx5_cmd_msg *msg, u8 token, int csum)
{
struct mlx5_cmd_mailbox *next = msg->next;
while (next) {
- calc_block_sig(next->buf, token);
+ calc_block_sig(next->buf, token, csum);
next = next->next;
}
}
-static void set_signature(struct mlx5_cmd_work_ent *ent)
+static void set_signature(struct mlx5_cmd_work_ent *ent, int csum)
{
ent->lay->sig = ~xor8_buf(ent->lay, sizeof(*ent->lay));
- calc_chain_sig(ent->in, ent->token);
- calc_chain_sig(ent->out, ent->token);
+ calc_chain_sig(ent->in, ent->token, csum);
+ calc_chain_sig(ent->out, ent->token, csum);
}
static void poll_timeout(struct mlx5_cmd_work_ent *ent)
lay->type = MLX5_PCI_CMD_XPORT;
lay->token = ent->token;
lay->status_own = CMD_OWNER_HW;
- if (!cmd->checksum_disabled)
- set_signature(ent);
+ set_signature(ent, !cmd->checksum_disabled);
dump_command(dev, ent, 1);
ktime_get_ts(&ent->ts1);
copy = min_t(int, size, MLX5_CMD_DATA_BLOCK_SIZE);
block = next->buf;
- if (xor8_buf(block, sizeof(*block)) != 0xff)
- return -EINVAL;
memcpy(to, block->data, copy);
to += copy;
goto err_map;
}
+ cmd->checksum_disabled = 1;
cmd->max_reg_cmds = (1 << cmd->log_sz) - 1;
cmd->bitmask = (1 << cmd->max_reg_cmds) - 1;
case MLX5_CMD_STAT_BAD_SYS_STATE_ERR: return -EIO;
case MLX5_CMD_STAT_BAD_RES_ERR: return -EINVAL;
case MLX5_CMD_STAT_RES_BUSY: return -EBUSY;
- case MLX5_CMD_STAT_LIM_ERR: return -EINVAL;
+ case MLX5_CMD_STAT_LIM_ERR: return -ENOMEM;
case MLX5_CMD_STAT_BAD_RES_STATE_ERR: return -EINVAL;
case MLX5_CMD_STAT_IX_ERR: return -EINVAL;
case MLX5_CMD_STAT_NO_RES_ERR: return -EAGAIN;
goto err_in;
}
+ snprintf(eq->name, MLX5_MAX_EQ_NAME, "%s@pci:%s",
+ name, pci_name(dev->pdev));
eq->eqn = out.eq_number;
err = request_irq(table->msix_arr[vecidx].vector, mlx5_msix_handler, 0,
- name, eq);
+ eq->name, eq);
if (err)
goto err_eq;
struct mlx5_cmd_set_hca_cap_mbox_in *set_ctx = NULL;
struct mlx5_cmd_query_hca_cap_mbox_in query_ctx;
struct mlx5_cmd_set_hca_cap_mbox_out set_out;
- struct mlx5_profile *prof = dev->profile;
u64 flags;
- int csum = 1;
int err;
memset(&query_ctx, 0, sizeof(query_ctx));
memcpy(&set_ctx->hca_cap, &query_out->hca_cap,
sizeof(set_ctx->hca_cap));
- if (prof->mask & MLX5_PROF_MASK_CMDIF_CSUM) {
- csum = !!prof->cmdif_csum;
- flags = be64_to_cpu(set_ctx->hca_cap.flags);
- if (csum)
- flags |= MLX5_DEV_CAP_FLAG_CMDIF_CSUM;
- else
- flags &= ~MLX5_DEV_CAP_FLAG_CMDIF_CSUM;
-
- set_ctx->hca_cap.flags = cpu_to_be64(flags);
- }
-
if (dev->profile->mask & MLX5_PROF_MASK_QP_SIZE)
set_ctx->hca_cap.log_max_qp = dev->profile->log_max_qp;
+ flags = be64_to_cpu(query_out->hca_cap.flags);
+ /* disable checksum */
+ flags &= ~MLX5_DEV_CAP_FLAG_CMDIF_CSUM;
+
+ set_ctx->hca_cap.flags = cpu_to_be64(flags);
memset(&set_out, 0, sizeof(set_out));
set_ctx->hca_cap.log_uar_page_sz = cpu_to_be16(PAGE_SHIFT - 12);
set_ctx->hdr.opcode = cpu_to_be16(MLX5_CMD_OP_SET_HCA_CAP);
if (err)
goto query_ex;
- if (!csum)
- dev->cmd.checksum_disabled = 1;
-
query_ex:
kfree(query_out);
kfree(set_ctx);
__be64 pas[0];
};
+enum {
+ MAX_RECLAIM_TIME_MSECS = 5000,
+};
+
static int insert_page(struct mlx5_core_dev *dev, u64 addr, struct page *page, u16 func_id)
{
struct rb_root *root = &dev->priv.page_root;
int err;
int i;
+ if (nclaimed)
+ *nclaimed = 0;
+
memset(&in, 0, sizeof(in));
outlen = sizeof(*out) + npages * sizeof(out->pas[0]);
out = mlx5_vzalloc(outlen);
int mlx5_reclaim_startup_pages(struct mlx5_core_dev *dev)
{
- unsigned long end = jiffies + msecs_to_jiffies(5000);
+ unsigned long end = jiffies + msecs_to_jiffies(MAX_RECLAIM_TIME_MSECS);
struct fw_page *fwp;
struct rb_node *p;
+ int nclaimed = 0;
int err;
do {
p = rb_first(&dev->priv.page_root);
if (p) {
fwp = rb_entry(p, struct fw_page, rb_node);
- err = reclaim_pages(dev, fwp->func_id, optimal_reclaimed_pages(), NULL);
+ err = reclaim_pages(dev, fwp->func_id,
+ optimal_reclaimed_pages(),
+ &nclaimed);
if (err) {
mlx5_core_warn(dev, "failed reclaiming pages (%d)\n", err);
return err;
}
+ if (nclaimed)
+ end = jiffies + msecs_to_jiffies(MAX_RECLAIM_TIME_MSECS);
}
if (time_after(jiffies, end)) {
mlx5_core_warn(dev, "FW did not return all pages. giving up...\n");
irq = irq_of_parse_and_map(node, 0);
if (irq <= 0) {
netdev_err(ndev, "irq_of_parse_and_map failed\n");
- return -EINVAL;
+ ret = -EINVAL;
+ goto irq_map_fail;
}
priv = netdev_priv(ndev);
priv->tx_desc_base = dma_alloc_coherent(NULL, TX_REG_DESC_SIZE *
TX_DESC_NUM, &priv->tx_base,
GFP_DMA | GFP_KERNEL);
- if (priv->tx_desc_base == NULL)
+ if (priv->tx_desc_base == NULL) {
+ ret = -ENOMEM;
goto init_fail;
+ }
priv->rx_desc_base = dma_alloc_coherent(NULL, RX_REG_DESC_SIZE *
RX_DESC_NUM, &priv->rx_base,
GFP_DMA | GFP_KERNEL);
- if (priv->rx_desc_base == NULL)
+ if (priv->rx_desc_base == NULL) {
+ ret = -ENOMEM;
goto init_fail;
+ }
priv->tx_buf_base = kmalloc(priv->tx_buf_size * TX_DESC_NUM,
GFP_ATOMIC);
- if (!priv->tx_buf_base)
+ if (!priv->tx_buf_base) {
+ ret = -ENOMEM;
goto init_fail;
+ }
priv->rx_buf_base = kmalloc(priv->rx_buf_size * RX_DESC_NUM,
GFP_ATOMIC);
- if (!priv->rx_buf_base)
+ if (!priv->rx_buf_base) {
+ ret = -ENOMEM;
goto init_fail;
+ }
platform_set_drvdata(pdev, ndev);
init_fail:
netdev_err(ndev, "init failed\n");
moxart_mac_free_memory(ndev);
-
+irq_map_fail:
+ free_netdev(ndev);
return ret;
}
{ }
};
-struct __initdata platform_driver moxart_mac_driver = {
+static struct platform_driver moxart_mac_driver = {
.probe = moxart_mac_probe,
.remove = moxart_remove,
.driver = {
return err;
}
- if (channel->tx_count) {
+ if (qlcnic_82xx_check(adapter) && channel->tx_count) {
err = qlcnic_validate_max_tx_rings(adapter, channel->tx_count);
if (err)
return err;
.set_msglevel = qlcnic_set_msglevel,
.get_msglevel = qlcnic_get_msglevel,
};
+
+const struct ethtool_ops qlcnic_ethtool_failed_ops = {
+ .get_settings = qlcnic_get_settings,
+ .get_drvinfo = qlcnic_get_drvinfo,
+ .set_msglevel = qlcnic_set_msglevel,
+ .get_msglevel = qlcnic_get_msglevel,
+ .set_dump = qlcnic_set_dump,
+};
while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
usleep_range(10000, 11000);
+ if (!adapter->fw_work.work.func)
+ return;
+
cancel_delayed_work_sync(&adapter->fw_work);
}
err = qlcnic_alloc_adapter_resources(adapter);
if (err)
- goto err_out_free_netdev;
+ goto err_out_free_wq;
adapter->dev_rst_time = jiffies;
adapter->ahw->revision_id = pdev->revision;
adapter->portnum = adapter->ahw->pci_func;
err = qlcnic_start_firmware(adapter);
if (err) {
- dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
- goto err_out_free_hw;
+ dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
+ "\t\tIf reboot doesn't help, try flashing the card\n");
+ goto err_out_maintenance_mode;
}
qlcnic_get_multiq_capability(adapter);
err_out_free_hw:
qlcnic_free_adapter_resources(adapter);
+err_out_free_wq:
+ destroy_workqueue(adapter->qlcnic_wq);
+
err_out_free_netdev:
free_netdev(netdev);
pci_set_drvdata(pdev, NULL);
pci_disable_device(pdev);
return err;
+
+err_out_maintenance_mode:
+ netdev->netdev_ops = &qlcnic_netdev_failed_ops;
+ SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_failed_ops);
+ err = register_netdev(netdev);
+
+ if (err) {
+ dev_err(&pdev->dev, "Failed to register net device\n");
+ qlcnic_clr_all_drv_state(adapter, 0);
+ goto err_out_free_hw;
+ }
+
+ pci_set_drvdata(pdev, adapter);
+ qlcnic_add_sysfs(adapter);
+
+ return 0;
}
static void qlcnic_remove(struct pci_dev *pdev)
static int qlcnic_open(struct net_device *netdev)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
+ u32 state;
int err;
+ state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
+ if (state == QLCNIC_DEV_FAILED || state == QLCNIC_DEV_BADBAD) {
+ netdev_err(netdev, "%s: Device is in FAILED state\n", __func__);
+
+ return -EIO;
+ }
+
netif_carrier_off(netdev);
err = qlcnic_attach(adapter);
return;
state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
+ if (state == QLCNIC_DEV_FAILED || state == QLCNIC_DEV_BADBAD) {
+ netdev_err(adapter->netdev, "%s: Device is in FAILED state\n",
+ __func__);
+ qlcnic_api_unlock(adapter);
+
+ return;
+ }
if (state == QLCNIC_DEV_READY) {
QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
u8 max_hw = QLCNIC_MAX_TX_RINGS;
u32 max_allowed;
- if (!qlcnic_82xx_check(adapter)) {
- netdev_err(netdev, "No Multi TX-Q support\n");
- return -EINVAL;
- }
-
if (!qlcnic_use_msi_x && !qlcnic_use_msi) {
netdev_err(netdev, "No Multi TX-Q support in INT-x mode\n");
return -EINVAL;
u8 max_hw = adapter->ahw->max_rx_ques;
u32 max_allowed;
- if (qlcnic_82xx_check(adapter) && !qlcnic_use_msi_x &&
- !qlcnic_use_msi) {
+ if (!qlcnic_use_msi_x && !qlcnic_use_msi) {
netdev_err(netdev, "No RSS support in INT-x mode\n");
return -EINVAL;
}
{
struct net_device *netdev = adapter->netdev;
+ rtnl_lock();
if (netif_running(netdev))
__qlcnic_down(adapter, netdev);
/* After disabling SRIOV re-init the driver in default mode
configure opmode based on op_mode of function
*/
- if (qlcnic_83xx_configure_opmode(adapter))
+ if (qlcnic_83xx_configure_opmode(adapter)) {
+ rtnl_unlock();
return -EIO;
+ }
if (netif_running(netdev))
__qlcnic_up(adapter, netdev);
+ rtnl_unlock();
return 0;
}
return -EIO;
}
+ rtnl_lock();
if (netif_running(netdev))
__qlcnic_down(adapter, netdev);
__qlcnic_up(adapter, netdev);
error:
+ rtnl_unlock();
return err;
}
void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter)
{
struct device *dev = &adapter->pdev->dev;
+ u32 state;
if (device_create_bin_file(dev, &bin_attr_port_stats))
dev_info(dev, "failed to create port stats sysfs entry");
if (device_create_bin_file(dev, &bin_attr_mem))
dev_info(dev, "failed to create mem sysfs entry\n");
+ state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
+ if (state == QLCNIC_DEV_FAILED || state == QLCNIC_DEV_BADBAD)
+ return;
+
if (device_create_bin_file(dev, &bin_attr_pci_config))
dev_info(dev, "failed to create pci config sysfs entry");
+
if (device_create_file(dev, &dev_attr_beacon))
dev_info(dev, "failed to create beacon sysfs entry");
void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter)
{
struct device *dev = &adapter->pdev->dev;
+ u32 state;
device_remove_bin_file(dev, &bin_attr_port_stats);
device_remove_file(dev, &dev_attr_diag_mode);
device_remove_bin_file(dev, &bin_attr_crb);
device_remove_bin_file(dev, &bin_attr_mem);
+
+ state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
+ if (state == QLCNIC_DEV_FAILED || state == QLCNIC_DEV_BADBAD)
+ return;
+
device_remove_bin_file(dev, &bin_attr_pci_config);
device_remove_file(dev, &dev_attr_beacon);
if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
int i;
if (!mpi_coredump) {
- netif_err(qdev, drv, qdev->ndev, "No memory available\n");
- return -ENOMEM;
+ netif_err(qdev, drv, qdev->ndev, "No memory allocated\n");
+ return -EINVAL;
}
/* Try to get the spinlock, but dont worry if
return;
}
- if (!ql_core_dump(qdev, qdev->mpi_coredump)) {
+ if (qdev->mpi_coredump && !ql_core_dump(qdev, qdev->mpi_coredump)) {
netif_err(qdev, drv, qdev->ndev, "Core is dumped!\n");
qdev->core_is_dumped = 1;
queue_delayed_work(qdev->workqueue,
.eesr_err_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT |
EESR_RFE | EESR_RDE | EESR_RFRMER | EESR_TFE |
EESR_TDE | EESR_ECI,
+ .fdr_value = 0x0000070f,
+ .rmcr_value = 0x00000001,
.apr = 1,
.mpr = 1,
.tpauser = 1,
.bculr = 1,
.hw_swap = 1,
+ .rpadir = 1,
+ .rpadir_value = 2 << 16,
.no_trimd = 1,
.no_ade = 1,
.tsu = 1,
EF10_DMA_STAT(rx_align_error, RX_ALIGN_ERROR_PKTS),
EF10_DMA_STAT(rx_length_error, RX_LENGTH_ERROR_PKTS),
EF10_DMA_STAT(rx_nodesc_drops, RX_NODESC_DROPS),
+ EF10_DMA_STAT(rx_pm_trunc_bb_overflow, PM_TRUNC_BB_OVERFLOW),
+ EF10_DMA_STAT(rx_pm_discard_bb_overflow, PM_DISCARD_BB_OVERFLOW),
+ EF10_DMA_STAT(rx_pm_trunc_vfifo_full, PM_TRUNC_VFIFO_FULL),
+ EF10_DMA_STAT(rx_pm_discard_vfifo_full, PM_DISCARD_VFIFO_FULL),
+ EF10_DMA_STAT(rx_pm_trunc_qbb, PM_TRUNC_QBB),
+ EF10_DMA_STAT(rx_pm_discard_qbb, PM_DISCARD_QBB),
+ EF10_DMA_STAT(rx_pm_discard_mapping, PM_DISCARD_MAPPING),
+ EF10_DMA_STAT(rx_dp_q_disabled_packets, RXDP_Q_DISABLED_PKTS),
+ EF10_DMA_STAT(rx_dp_di_dropped_packets, RXDP_DI_DROPPED_PKTS),
+ EF10_DMA_STAT(rx_dp_streaming_packets, RXDP_STREAMING_PKTS),
+ EF10_DMA_STAT(rx_dp_emerg_fetch, RXDP_EMERGENCY_FETCH_CONDITIONS),
+ EF10_DMA_STAT(rx_dp_emerg_wait, RXDP_EMERGENCY_WAIT_CONDITIONS),
};
#define HUNT_COMMON_STAT_MASK ((1ULL << EF10_STAT_tx_bytes) | \
#define HUNT_40G_EXTRA_STAT_MASK ((1ULL << EF10_STAT_rx_align_error) | \
(1ULL << EF10_STAT_rx_length_error))
-#if BITS_PER_LONG == 64
-#define STAT_MASK_BITMAP(bits) (bits)
-#else
-#define STAT_MASK_BITMAP(bits) (bits) & 0xffffffff, (bits) >> 32
-#endif
-
-static const unsigned long *efx_ef10_stat_mask(struct efx_nic *efx)
-{
- static const unsigned long hunt_40g_stat_mask[] = {
- STAT_MASK_BITMAP(HUNT_COMMON_STAT_MASK |
- HUNT_40G_EXTRA_STAT_MASK)
- };
- static const unsigned long hunt_10g_only_stat_mask[] = {
- STAT_MASK_BITMAP(HUNT_COMMON_STAT_MASK |
- HUNT_10G_ONLY_STAT_MASK)
- };
+/* These statistics are only provided if the firmware supports the
+ * capability PM_AND_RXDP_COUNTERS.
+ */
+#define HUNT_PM_AND_RXDP_STAT_MASK ( \
+ (1ULL << EF10_STAT_rx_pm_trunc_bb_overflow) | \
+ (1ULL << EF10_STAT_rx_pm_discard_bb_overflow) | \
+ (1ULL << EF10_STAT_rx_pm_trunc_vfifo_full) | \
+ (1ULL << EF10_STAT_rx_pm_discard_vfifo_full) | \
+ (1ULL << EF10_STAT_rx_pm_trunc_qbb) | \
+ (1ULL << EF10_STAT_rx_pm_discard_qbb) | \
+ (1ULL << EF10_STAT_rx_pm_discard_mapping) | \
+ (1ULL << EF10_STAT_rx_dp_q_disabled_packets) | \
+ (1ULL << EF10_STAT_rx_dp_di_dropped_packets) | \
+ (1ULL << EF10_STAT_rx_dp_streaming_packets) | \
+ (1ULL << EF10_STAT_rx_dp_emerg_fetch) | \
+ (1ULL << EF10_STAT_rx_dp_emerg_wait))
+
+static u64 efx_ef10_raw_stat_mask(struct efx_nic *efx)
+{
+ u64 raw_mask = HUNT_COMMON_STAT_MASK;
u32 port_caps = efx_mcdi_phy_get_caps(efx);
+ struct efx_ef10_nic_data *nic_data = efx->nic_data;
if (port_caps & (1 << MC_CMD_PHY_CAP_40000FDX_LBN))
- return hunt_40g_stat_mask;
+ raw_mask |= HUNT_40G_EXTRA_STAT_MASK;
else
- return hunt_10g_only_stat_mask;
+ raw_mask |= HUNT_10G_ONLY_STAT_MASK;
+
+ if (nic_data->datapath_caps &
+ (1 << MC_CMD_GET_CAPABILITIES_OUT_PM_AND_RXDP_COUNTERS_LBN))
+ raw_mask |= HUNT_PM_AND_RXDP_STAT_MASK;
+
+ return raw_mask;
+}
+
+static void efx_ef10_get_stat_mask(struct efx_nic *efx, unsigned long *mask)
+{
+ u64 raw_mask = efx_ef10_raw_stat_mask(efx);
+
+#if BITS_PER_LONG == 64
+ mask[0] = raw_mask;
+#else
+ mask[0] = raw_mask & 0xffffffff;
+ mask[1] = raw_mask >> 32;
+#endif
}
static size_t efx_ef10_describe_stats(struct efx_nic *efx, u8 *names)
{
+ DECLARE_BITMAP(mask, EF10_STAT_COUNT);
+
+ efx_ef10_get_stat_mask(efx, mask);
return efx_nic_describe_stats(efx_ef10_stat_desc, EF10_STAT_COUNT,
- efx_ef10_stat_mask(efx), names);
+ mask, names);
}
static int efx_ef10_try_update_nic_stats(struct efx_nic *efx)
{
struct efx_ef10_nic_data *nic_data = efx->nic_data;
- const unsigned long *stats_mask = efx_ef10_stat_mask(efx);
+ DECLARE_BITMAP(mask, EF10_STAT_COUNT);
__le64 generation_start, generation_end;
u64 *stats = nic_data->stats;
__le64 *dma_stats;
+ efx_ef10_get_stat_mask(efx, mask);
+
dma_stats = efx->stats_buffer.addr;
nic_data = efx->nic_data;
if (generation_end == EFX_MC_STATS_GENERATION_INVALID)
return 0;
rmb();
- efx_nic_update_stats(efx_ef10_stat_desc, EF10_STAT_COUNT, stats_mask,
+ efx_nic_update_stats(efx_ef10_stat_desc, EF10_STAT_COUNT, mask,
stats, efx->stats_buffer.addr, false);
+ rmb();
generation_start = dma_stats[MC_CMD_MAC_GENERATION_START];
if (generation_end != generation_start)
return -EAGAIN;
static size_t efx_ef10_update_stats(struct efx_nic *efx, u64 *full_stats,
struct rtnl_link_stats64 *core_stats)
{
- const unsigned long *mask = efx_ef10_stat_mask(efx);
+ DECLARE_BITMAP(mask, EF10_STAT_COUNT);
struct efx_ef10_nic_data *nic_data = efx->nic_data;
u64 *stats = nic_data->stats;
size_t stats_count = 0, index;
int retry;
+ efx_ef10_get_stat_mask(efx, mask);
+
/* If we're unlucky enough to read statistics during the DMA, wait
* up to 10ms for it to finish (typically takes <500us)
*/
/* A reboot/assertion causes the MCDI status word to be set after the
* command word is set or a REBOOT event is sent. If we notice a reboot
- * via these mechanisms then wait 20ms for the status word to be set.
+ * via these mechanisms then wait 250ms for the status word to be set.
*/
#define MCDI_STATUS_DELAY_US 100
-#define MCDI_STATUS_DELAY_COUNT 200
+#define MCDI_STATUS_DELAY_COUNT 2500
#define MCDI_STATUS_SLEEP_MS \
(MCDI_STATUS_DELAY_US * MCDI_STATUS_DELAY_COUNT / 1000)
} else {
int count;
- /* Nobody was waiting for an MCDI request, so trigger a reset */
- efx_schedule_reset(efx, RESET_TYPE_MC_FAILURE);
-
/* Consume the status word since efx_mcdi_rpc_finish() won't */
for (count = 0; count < MCDI_STATUS_DELAY_COUNT; ++count) {
if (efx_mcdi_poll_reboot(efx))
udelay(MCDI_STATUS_DELAY_US);
}
mcdi->new_epoch = true;
+
+ /* Nobody was waiting for an MCDI request, so trigger a reset */
+ efx_schedule_reset(efx, RESET_TYPE_MC_FAILURE);
}
spin_unlock(&mcdi->iface_lock);
bool *was_attached)
{
MCDI_DECLARE_BUF(inbuf, MC_CMD_DRV_ATTACH_IN_LEN);
- MCDI_DECLARE_BUF(outbuf, MC_CMD_DRV_ATTACH_OUT_LEN);
+ MCDI_DECLARE_BUF(outbuf, MC_CMD_DRV_ATTACH_EXT_OUT_LEN);
size_t outlen;
int rc;
goto fail;
}
+ /* We currently assume we have control of the external link
+ * and are completely trusted by firmware. Abort probing
+ * if that's not true for this function.
+ */
+ if (driver_operating &&
+ outlen >= MC_CMD_DRV_ATTACH_EXT_OUT_LEN &&
+ (MCDI_DWORD(outbuf, DRV_ATTACH_EXT_OUT_FUNC_FLAGS) &
+ (1 << MC_CMD_DRV_ATTACH_EXT_OUT_FLAG_LINKCTRL |
+ 1 << MC_CMD_DRV_ATTACH_EXT_OUT_FLAG_TRUSTED)) !=
+ (1 << MC_CMD_DRV_ATTACH_EXT_OUT_FLAG_LINKCTRL |
+ 1 << MC_CMD_DRV_ATTACH_EXT_OUT_FLAG_TRUSTED)) {
+ netif_err(efx, probe, efx->net_dev,
+ "This driver version only supports one function per port\n");
+ return -ENODEV;
+ }
+
if (was_attached != NULL)
*was_attached = MCDI_DWORD(outbuf, DRV_ATTACH_OUT_OLD_STATE);
return 0;
#define MC_CMD_MAC_RX_LANES01_DISP_ERR 0x39 /* enum */
#define MC_CMD_MAC_RX_LANES23_DISP_ERR 0x3a /* enum */
#define MC_CMD_MAC_RX_MATCH_FAULT 0x3b /* enum */
-#define MC_CMD_GMAC_DMABUF_START 0x40 /* enum */
-#define MC_CMD_GMAC_DMABUF_END 0x5f /* enum */
+/* enum: PM trunc_bb_overflow counter. Valid for EF10 with PM_AND_RXDP_COUNTERS
+ * capability only.
+ */
+#define MC_CMD_MAC_PM_TRUNC_BB_OVERFLOW 0x3c
+/* enum: PM discard_bb_overflow counter. Valid for EF10 with
+ * PM_AND_RXDP_COUNTERS capability only.
+ */
+#define MC_CMD_MAC_PM_DISCARD_BB_OVERFLOW 0x3d
+/* enum: PM trunc_vfifo_full counter. Valid for EF10 with PM_AND_RXDP_COUNTERS
+ * capability only.
+ */
+#define MC_CMD_MAC_PM_TRUNC_VFIFO_FULL 0x3e
+/* enum: PM discard_vfifo_full counter. Valid for EF10 with
+ * PM_AND_RXDP_COUNTERS capability only.
+ */
+#define MC_CMD_MAC_PM_DISCARD_VFIFO_FULL 0x3f
+/* enum: PM trunc_qbb counter. Valid for EF10 with PM_AND_RXDP_COUNTERS
+ * capability only.
+ */
+#define MC_CMD_MAC_PM_TRUNC_QBB 0x40
+/* enum: PM discard_qbb counter. Valid for EF10 with PM_AND_RXDP_COUNTERS
+ * capability only.
+ */
+#define MC_CMD_MAC_PM_DISCARD_QBB 0x41
+/* enum: PM discard_mapping counter. Valid for EF10 with PM_AND_RXDP_COUNTERS
+ * capability only.
+ */
+#define MC_CMD_MAC_PM_DISCARD_MAPPING 0x42
+/* enum: RXDP counter: Number of packets dropped due to the queue being
+ * disabled. Valid for EF10 with PM_AND_RXDP_COUNTERS capability only.
+ */
+#define MC_CMD_MAC_RXDP_Q_DISABLED_PKTS 0x43
+/* enum: RXDP counter: Number of packets dropped by the DICPU. Valid for EF10
+ * with PM_AND_RXDP_COUNTERS capability only.
+ */
+#define MC_CMD_MAC_RXDP_DI_DROPPED_PKTS 0x45
+/* enum: RXDP counter: Number of non-host packets. Valid for EF10 with
+ * PM_AND_RXDP_COUNTERS capability only.
+ */
+#define MC_CMD_MAC_RXDP_STREAMING_PKTS 0x46
+/* enum: RXDP counter: Number of times an emergency descriptor fetch was
+ * performed. Valid for EF10 with PM_AND_RXDP_COUNTERS capability only.
+ */
+#define MC_CMD_MAC_RXDP_EMERGENCY_FETCH_CONDITIONS 0x47
+/* enum: RXDP counter: Number of times the DPCPU waited for an existing
+ * descriptor fetch. Valid for EF10 with PM_AND_RXDP_COUNTERS capability only.
+ */
+#define MC_CMD_MAC_RXDP_EMERGENCY_WAIT_CONDITIONS 0x48
+/* enum: Start of GMAC stats buffer space, for Siena only. */
+#define MC_CMD_GMAC_DMABUF_START 0x40
+/* enum: End of GMAC stats buffer space, for Siena only. */
+#define MC_CMD_GMAC_DMABUF_END 0x5f
#define MC_CMD_MAC_GENERATION_END 0x60 /* enum */
#define MC_CMD_MAC_NSTATS 0x61 /* enum */
#define MC_CMD_GET_CAPABILITIES_OUT_RX_BATCHING_WIDTH 1
#define MC_CMD_GET_CAPABILITIES_OUT_MCAST_FILTER_CHAINING_LBN 26
#define MC_CMD_GET_CAPABILITIES_OUT_MCAST_FILTER_CHAINING_WIDTH 1
+#define MC_CMD_GET_CAPABILITIES_OUT_PM_AND_RXDP_COUNTERS_LBN 27
+#define MC_CMD_GET_CAPABILITIES_OUT_PM_AND_RXDP_COUNTERS_WIDTH 1
/* RxDPCPU firmware id. */
#define MC_CMD_GET_CAPABILITIES_OUT_RX_DPCPU_FW_ID_OFST 4
#define MC_CMD_GET_CAPABILITIES_OUT_RX_DPCPU_FW_ID_LEN 2
* @count: Length of the @desc array
* @mask: Bitmask of which elements of @desc are enabled
* @stats: Buffer to update with the converted statistics. The length
- * of this array must be at least the number of set bits in the
- * first @count bits of @mask.
+ * of this array must be at least @count.
* @dma_buf: DMA buffer containing hardware statistics
* @accumulate: If set, the converted values will be added rather than
* directly stored to the corresponding elements of @stats
}
if (accumulate)
- *stats += val;
+ stats[index] += val;
else
- *stats = val;
+ stats[index] = val;
}
-
- ++stats;
}
}
EF10_STAT_rx_align_error,
EF10_STAT_rx_length_error,
EF10_STAT_rx_nodesc_drops,
+ EF10_STAT_rx_pm_trunc_bb_overflow,
+ EF10_STAT_rx_pm_discard_bb_overflow,
+ EF10_STAT_rx_pm_trunc_vfifo_full,
+ EF10_STAT_rx_pm_discard_vfifo_full,
+ EF10_STAT_rx_pm_trunc_qbb,
+ EF10_STAT_rx_pm_discard_qbb,
+ EF10_STAT_rx_pm_discard_mapping,
+ EF10_STAT_rx_dp_q_disabled_packets,
+ EF10_STAT_rx_dp_di_dropped_packets,
+ EF10_STAT_rx_dp_streaming_packets,
+ EF10_STAT_rx_dp_emerg_fetch,
+ EF10_STAT_rx_dp_emerg_wait,
EF10_STAT_COUNT
};
void __iomem *__ioaddr = ioaddr; \
if (__len >= 2 && (unsigned long)__ptr & 2) { \
__len -= 2; \
- SMC_outw(*(u16 *)__ptr, ioaddr, \
- DATA_REG(lp)); \
+ SMC_outsw(ioaddr, DATA_REG(lp), __ptr, 1); \
__ptr += 2; \
} \
if (SMC_CAN_USE_DATACS && lp->datacs) \
SMC_outsl(__ioaddr, DATA_REG(lp), __ptr, __len>>2); \
if (__len & 2) { \
__ptr += (__len & ~3); \
- SMC_outw(*((u16 *)__ptr), ioaddr, \
- DATA_REG(lp)); \
+ SMC_outsw(ioaddr, DATA_REG(lp), __ptr, 1); \
} \
} else if (SMC_16BIT(lp)) \
SMC_outsw(ioaddr, DATA_REG(lp), p, (l) >> 1); \
static irqreturn_t cpsw_interrupt(int irq, void *dev_id)
{
struct cpsw_priv *priv = dev_id;
- u32 rx, tx, rx_thresh;
-
- rx_thresh = __raw_readl(&priv->wr_regs->rx_thresh_stat);
- rx = __raw_readl(&priv->wr_regs->rx_stat);
- tx = __raw_readl(&priv->wr_regs->tx_stat);
- if (!rx_thresh && !rx && !tx)
- return IRQ_NONE;
cpsw_intr_disable(priv);
if (priv->irq_enabled == true) {
}
}
+ napi_enable(&priv->napi);
cpdma_ctlr_start(priv->dma);
cpsw_intr_enable(priv);
- napi_enable(&priv->napi);
cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX);
cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX);
}
data->mac_control = prop;
- if (!of_property_read_u32(node, "dual_emac", &prop))
- data->dual_emac = prop;
+ if (of_property_read_bool(node, "dual_emac"))
+ data->dual_emac = 1;
/*
* Populate all the child nodes here...
if (ret)
pr_warn("Doesn't have any child node\n");
- for_each_node_by_name(slave_node, "slave") {
+ for_each_child_of_node(node, slave_node) {
struct cpsw_slave_data *slave_data = data->slave_data + i;
const void *mac_addr = NULL;
u32 phyid;
struct device_node *mdio_node;
struct platform_device *mdio;
+ /* This is no slave child node, continue */
+ if (strcmp(slave_node->name, "slave"))
+ continue;
+
parp = of_get_property(slave_node, "phy_id", &lenp);
if ((parp == NULL) || (lenp != (sizeof(void *) * 2))) {
pr_err("Missing slave[%d] phy_id property\n", i);
netdev_mc_count(ndev) > EMAC_DEF_MAX_MULTICAST_ADDRESSES) {
mbp_enable = (mbp_enable | EMAC_MBP_RXMCAST);
emac_add_mcast(priv, EMAC_ALL_MULTI_SET, NULL);
- }
- if (!netdev_mc_empty(ndev)) {
+ } else if (!netdev_mc_empty(ndev)) {
struct netdev_hw_addr *ha;
mbp_enable = (mbp_enable | EMAC_MBP_RXMCAST);
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#define DRV_NAME "via-rhine"
-#define DRV_VERSION "1.5.0"
+#define DRV_VERSION "1.5.1"
#define DRV_RELDATE "2010-10-09"
#include <linux/types.h>
cpu_to_le32(TXDESC | (skb->len >= ETH_ZLEN ? skb->len : ETH_ZLEN));
if (unlikely(vlan_tx_tag_present(skb))) {
- rp->tx_ring[entry].tx_status = cpu_to_le32((vlan_tx_tag_get(skb)) << 16);
+ u16 vid_pcp = vlan_tx_tag_get(skb);
+
+ /* drop CFI/DEI bit, register needs VID and PCP */
+ vid_pcp = (vid_pcp & VLAN_VID_MASK) |
+ ((vid_pcp & VLAN_PRIO_MASK) >> 1);
+ rp->tx_ring[entry].tx_status = cpu_to_le32((vid_pcp) << 16);
/* request tagging */
rp->tx_ring[entry].desc_length |= cpu_to_le32(0x020000);
}
lp->rx_bd_p + (sizeof(*lp->rx_bd_v) * (RX_BD_NUM - 1)));
lp->dma_out(lp, TX_CURDESC_PTR, lp->tx_bd_p);
+ /* Init descriptor indexes */
+ lp->tx_bd_ci = 0;
+ lp->tx_bd_next = 0;
+ lp->tx_bd_tail = 0;
+ lp->rx_bd_ci = 0;
+
return 0;
out:
return -EINVAL; /* Cannot change this parameter when up */
if ((ym = kmalloc(sizeof(struct yamdrv_ioctl_mcs), GFP_KERNEL)) == NULL)
return -ENOBUFS;
- ym->bitrate = 9600;
if (copy_from_user(ym, ifr->ifr_data, sizeof(struct yamdrv_ioctl_mcs))) {
kfree(ym);
return -EFAULT;
struct mutex buffer_mutex; /* only used to protect buf */
struct completion tx_complete;
- struct work_struct irqwork;
u8 *buf; /* 3 bytes. Used for SPI single-register transfers. */
};
if (ret)
goto err;
+ INIT_COMPLETION(devrec->tx_complete);
+
/* Set TXNTRIG bit of TXNCON to send packet */
ret = read_short_reg(devrec, REG_TXNCON, &val);
if (ret)
val |= 0x4;
write_short_reg(devrec, REG_TXNCON, val);
- INIT_COMPLETION(devrec->tx_complete);
-
/* Wait for the device to send the TX complete interrupt. */
ret = wait_for_completion_interruptible_timeout(
&devrec->tx_complete,
static irqreturn_t mrf24j40_isr(int irq, void *data)
{
struct mrf24j40 *devrec = data;
-
- disable_irq_nosync(irq);
-
- schedule_work(&devrec->irqwork);
-
- return IRQ_HANDLED;
-}
-
-static void mrf24j40_isrwork(struct work_struct *work)
-{
- struct mrf24j40 *devrec = container_of(work, struct mrf24j40, irqwork);
u8 intstat;
int ret;
mrf24j40_handle_rx(devrec);
out:
- enable_irq(devrec->spi->irq);
+ return IRQ_HANDLED;
}
static int mrf24j40_probe(struct spi_device *spi)
mutex_init(&devrec->buffer_mutex);
init_completion(&devrec->tx_complete);
- INIT_WORK(&devrec->irqwork, mrf24j40_isrwork);
devrec->spi = spi;
spi_set_drvdata(spi, devrec);
val &= ~0x3; /* Clear RX mode (normal) */
write_short_reg(devrec, REG_RXMCR, val);
- ret = request_irq(spi->irq,
- mrf24j40_isr,
- IRQF_TRIGGER_FALLING,
- dev_name(&spi->dev),
- devrec);
+ ret = request_threaded_irq(spi->irq,
+ NULL,
+ mrf24j40_isr,
+ IRQF_TRIGGER_LOW|IRQF_ONESHOT,
+ dev_name(&spi->dev),
+ devrec);
if (ret) {
dev_err(printdev(devrec), "Unable to get IRQ");
dev_dbg(printdev(devrec), "remove\n");
free_irq(spi->irq, devrec);
- flush_work(&devrec->irqwork); /* TODO: Is this the right call? */
ieee802154_unregister_device(devrec->dev);
ieee802154_free_device(devrec->dev);
/* TODO: Will ieee802154_free_device() wait until ->xmit() is
if (!sl || sl->magic != SLIP_MAGIC || !netif_running(sl->dev))
return;
+ spin_lock(&sl->lock);
if (sl->xleft <= 0) {
/* Now serial buffer is almost free & we can start
* transmission of another packet */
sl->dev->stats.tx_packets++;
clear_bit(TTY_DO_WRITE_WAKEUP, &tty->flags);
+ spin_unlock(&sl->lock);
sl_unlock(sl);
return;
}
actual = tty->ops->write(tty, sl->xhead, sl->xleft);
sl->xleft -= actual;
sl->xhead += actual;
+ spin_unlock(&sl->lock);
}
static void sl_tx_timeout(struct net_device *dev)
if (unlikely(!noblock))
add_wait_queue(&tfile->wq.wait, &wait);
while (len) {
- current->state = TASK_INTERRUPTIBLE;
+ if (unlikely(!noblock))
+ current->state = TASK_INTERRUPTIBLE;
/* Read frames from the queue */
if (!(skb = skb_dequeue(&tfile->socket.sk->sk_receive_queue))) {
break;
}
- current->state = TASK_RUNNING;
- if (unlikely(!noblock))
+ if (unlikely(!noblock)) {
+ current->state = TASK_RUNNING;
remove_wait_queue(&tfile->wq.wait, &wait);
+ }
return ret;
}
#define AX_RXHDR_L4_TYPE_TCP 16
#define AX_RXHDR_L3CSUM_ERR 2
#define AX_RXHDR_L4CSUM_ERR 1
-#define AX_RXHDR_CRC_ERR ((u32)BIT(31))
-#define AX_RXHDR_DROP_ERR ((u32)BIT(30))
+#define AX_RXHDR_CRC_ERR ((u32)BIT(29))
+#define AX_RXHDR_DROP_ERR ((u32)BIT(31))
#define AX_ACCESS_MAC 0x01
#define AX_ACCESS_PHY 0x02
#define AX_ACCESS_EEPROM 0x04
.tx_fixup = ax88179_tx_fixup,
};
+static const struct driver_info samsung_info = {
+ .description = "Samsung USB Ethernet Adapter",
+ .bind = ax88179_bind,
+ .unbind = ax88179_unbind,
+ .status = ax88179_status,
+ .link_reset = ax88179_link_reset,
+ .reset = ax88179_reset,
+ .stop = ax88179_stop,
+ .flags = FLAG_ETHER | FLAG_FRAMING_AX,
+ .rx_fixup = ax88179_rx_fixup,
+ .tx_fixup = ax88179_tx_fixup,
+};
+
static const struct usb_device_id products[] = {
{
/* ASIX AX88179 10/100/1000 */
}, {
/* Sitecom USB 3.0 to Gigabit Adapter */
USB_DEVICE(0x0df6, 0x0072),
- .driver_info = (unsigned long) &sitecom_info,
+ .driver_info = (unsigned long)&sitecom_info,
+}, {
+ /* Samsung USB Ethernet Adapter */
+ USB_DEVICE(0x04e8, 0xa100),
+ .driver_info = (unsigned long)&samsung_info,
},
{ },
};
rx_ctl |= 0x02;
} else if (net->flags & IFF_ALLMULTI ||
netdev_mc_count(net) > DM_MAX_MCAST) {
- rx_ctl |= 0x04;
+ rx_ctl |= 0x08;
} else if (!netdev_mc_empty(net)) {
struct netdev_hw_addr *ha;
{QMI_FIXED_INTF(0x2357, 0x0201, 4)}, /* TP-LINK HSUPA Modem MA180 */
{QMI_FIXED_INTF(0x2357, 0x9000, 4)}, /* TP-LINK MA260 */
{QMI_FIXED_INTF(0x1bc7, 0x1200, 5)}, /* Telit LE920 */
- {QMI_FIXED_INTF(0x1e2d, 0x12d1, 4)}, /* Cinterion PLxx */
+ {QMI_FIXED_INTF(0x0b3c, 0xc005, 6)}, /* Olivetti Olicard 200 */
+ {QMI_FIXED_INTF(0x1e2d, 0x0060, 4)}, /* Cinterion PLxx */
/* 4. Gobi 1000 devices */
{QMI_GOBI1K_DEVICE(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */
if (num_sgs == 1)
return 0;
- urb->sg = kmalloc(num_sgs * sizeof(struct scatterlist), GFP_ATOMIC);
+ /* reserve one for zero packet */
+ urb->sg = kmalloc((num_sgs + 1) * sizeof(struct scatterlist),
+ GFP_ATOMIC);
if (!urb->sg)
return -ENOMEM;
if (build_dma_sg(skb, urb) < 0)
goto drop;
}
- entry->length = length = urb->transfer_buffer_length;
+ length = urb->transfer_buffer_length;
/* don't assume the hardware handles USB_ZERO_PACKET
* NOTE: strictly conforming cdc-ether devices should expect
if (length % dev->maxpacket == 0) {
if (!(info->flags & FLAG_SEND_ZLP)) {
if (!(info->flags & FLAG_MULTI_PACKET)) {
- urb->transfer_buffer_length++;
- if (skb_tailroom(skb)) {
+ length++;
+ if (skb_tailroom(skb) && !urb->num_sgs) {
skb->data[skb->len] = 0;
__skb_put(skb, 1);
- }
+ } else if (urb->num_sgs)
+ sg_set_buf(&urb->sg[urb->num_sgs++],
+ dev->padding_pkt, 1);
}
} else
urb->transfer_flags |= URB_ZERO_PACKET;
}
+ entry->length = urb->transfer_buffer_length = length;
spin_lock_irqsave(&dev->txq.lock, flags);
retval = usb_autopm_get_interface_async(dev->intf);
usb_kill_urb(dev->interrupt);
usb_free_urb(dev->interrupt);
+ kfree(dev->padding_pkt);
free_netdev(net);
}
/* initialize max rx_qlen and tx_qlen */
usbnet_update_max_qlen(dev);
+ if (dev->can_dma_sg && !(info->flags & FLAG_SEND_ZLP) &&
+ !(info->flags & FLAG_MULTI_PACKET)) {
+ dev->padding_pkt = kzalloc(1, GFP_KERNEL);
+ if (!dev->padding_pkt) {
+ status = -ENOMEM;
+ goto out4;
+ }
+ }
+
status = register_netdev (net);
if (status)
- goto out4;
+ goto out5;
netif_info(dev, probe, dev->net,
"register '%s' at usb-%s-%s, %s, %pM\n",
udev->dev.driver->name,
return 0;
+out5:
+ kfree(dev->padding_pkt);
out4:
usb_free_urb(dev->interrupt);
out3:
return -EINVAL;
} else {
vi->curr_queue_pairs = queue_pairs;
- schedule_delayed_work(&vi->refill, 0);
+ /* virtnet_open() will refill when device is going to up. */
+ if (dev->flags & IFF_UP)
+ schedule_delayed_work(&vi->refill, 0);
}
return 0;
{
struct virtnet_info *vi = container_of(nfb, struct virtnet_info, nb);
+ mutex_lock(&vi->config_lock);
+
+ if (!vi->config_enable)
+ goto done;
+
switch(action & ~CPU_TASKS_FROZEN) {
case CPU_ONLINE:
case CPU_DOWN_FAILED:
default:
break;
}
+
+done:
+ mutex_unlock(&vi->config_lock);
return NOTIFY_OK;
}
vi->config_enable = true;
mutex_unlock(&vi->config_lock);
+ rtnl_lock();
virtnet_set_queues(vi, vi->curr_queue_pairs);
+ rtnl_unlock();
return 0;
}
spin_lock(&vn->sock_lock);
hlist_del_rcu(&vs->hlist);
- smp_wmb();
- vs->sock->sk->sk_user_data = NULL;
+ rcu_assign_sk_user_data(vs->sock->sk, NULL);
vxlan_notify_del_rx_port(sk);
spin_unlock(&vn->sock_lock);
port = inet_sk(sk)->inet_sport;
- smp_read_barrier_depends();
- vs = (struct vxlan_sock *)sk->sk_user_data;
+ vs = rcu_dereference_sk_user_data(sk);
if (!vs)
goto drop;
atomic_set(&vs->refcnt, 1);
vs->rcv = rcv;
vs->data = data;
- smp_wmb();
- vs->sock->sk->sk_user_data = vs;
+ rcu_assign_sk_user_data(vs->sock->sk, vs);
spin_lock(&vn->sock_lock);
hlist_add_head_rcu(&vs->hlist, vs_head(net, port));
}
i = port->index;
+ memset(&sync, 0, sizeof(sync));
sync.clock_rate = FST_RDL(card, portConfig[i].lineSpeed);
/* Lucky card and linux use same encoding here */
sync.clock_type = FST_RDB(card, portConfig[i].internalClock) ==
ifr->ifr_settings.size = size; /* data size wanted */
return -ENOBUFS;
}
+ memset(&line, 0, sizeof(line));
line.clock_type = get_status(port)->clocking;
line.clock_rate = 0;
line.loopback = 0;
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
unsigned long flags;
+ int i;
if (ath_startrecv(sc) != 0) {
ath_err(common, "Unable to restart recv logic\n");
}
work:
ath_restart_work(sc);
+
+ for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
+ if (!ATH_TXQ_SETUP(sc, i))
+ continue;
+
+ spin_lock_bh(&sc->tx.txq[i].axq_lock);
+ ath_txq_schedule(sc, &sc->tx.txq[i]);
+ spin_unlock_bh(&sc->tx.txq[i].axq_lock);
+ }
}
ieee80211_wake_queues(sc->hw);
static int ath_reset(struct ath_softc *sc)
{
- int i, r;
+ int r;
ath9k_ps_wakeup(sc);
-
r = ath_reset_internal(sc, NULL);
-
- for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
- if (!ATH_TXQ_SETUP(sc, i))
- continue;
-
- spin_lock_bh(&sc->tx.txq[i].axq_lock);
- ath_txq_schedule(sc, &sc->tx.txq[i]);
- spin_unlock_bh(&sc->tx.txq[i].axq_lock);
- }
-
ath9k_ps_restore(sc);
return r;
if (!(ah->caps.hw_caps & ATH9K_HW_CAP_ANT_DIV_COMB))
return;
- /*
- * All MPDUs in an aggregate will use the same LNA
- * as the first MPDU.
- */
- if (rs->rs_isaggr && !rs->rs_firstaggr)
- return;
-
/*
* Change the default rx antenna if rx diversity
* chooses the other antenna 3 times in a row.
tbf->bf_buf_addr = bf->bf_buf_addr;
memcpy(tbf->bf_desc, bf->bf_desc, sc->sc_ah->caps.tx_desc_len);
tbf->bf_state = bf->bf_state;
+ tbf->bf_state.stale = false;
return tbf;
}
u16 tid, u16 *ssn)
{
struct ath_atx_tid *txtid;
+ struct ath_txq *txq;
struct ath_node *an;
u8 density;
an = (struct ath_node *)sta->drv_priv;
txtid = ATH_AN_2_TID(an, tid);
+ txq = txtid->ac->txq;
+
+ ath_txq_lock(sc, txq);
/* update ampdu factor/density, they may have changed. This may happen
* in HT IBSS when a beacon with HT-info is received after the station
memset(txtid->tx_buf, 0, sizeof(txtid->tx_buf));
txtid->baw_head = txtid->baw_tail = 0;
+ ath_txq_unlock_complete(sc, txq);
+
return 0;
}
__skb_unlink(bf->bf_mpdu, tid_q);
list_add_tail(&bf->list, &bf_q);
ath_set_rates(tid->an->vif, tid->an->sta, bf);
- ath_tx_addto_baw(sc, tid, bf);
- bf->bf_state.bf_type &= ~BUF_AGGR;
+ if (bf_isampdu(bf)) {
+ ath_tx_addto_baw(sc, tid, bf);
+ bf->bf_state.bf_type &= ~BUF_AGGR;
+ }
if (bf_tail)
bf_tail->bf_next = bf;
if (bf_is_ampdu_not_probing(bf))
txq->axq_ampdu_depth++;
- bf = bf->bf_lastbf->bf_next;
+ bf_last = bf->bf_lastbf;
+ bf = bf_last->bf_next;
+ bf_last->bf_next = NULL;
}
}
}
static void ath_tx_send_normal(struct ath_softc *sc, struct ath_txq *txq,
struct ath_atx_tid *tid, struct sk_buff *skb)
{
+ struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
struct ath_frame_info *fi = get_frame_info(skb);
struct list_head bf_head;
- struct ath_buf *bf;
-
- bf = fi->bf;
+ struct ath_buf *bf = fi->bf;
INIT_LIST_HEAD(&bf_head);
list_add_tail(&bf->list, &bf_head);
bf->bf_state.bf_type = 0;
+ if (tid && (tx_info->flags & IEEE80211_TX_CTL_AMPDU)) {
+ bf->bf_state.bf_type = BUF_AMPDU;
+ ath_tx_addto_baw(sc, tid, bf);
+ }
bf->bf_next = NULL;
bf->bf_lastbf = bf;
static int brcmf_sdio_pd_probe(struct platform_device *pdev)
{
- int ret;
-
brcmf_dbg(SDIO, "Enter\n");
brcmfmac_sdio_pdata = pdev->dev.platform_data;
if (brcmfmac_sdio_pdata->power_on)
brcmfmac_sdio_pdata->power_on();
- ret = sdio_register_driver(&brcmf_sdmmc_driver);
- if (ret)
- brcmf_err("sdio_register_driver failed: %d\n", ret);
-
- return ret;
+ return 0;
}
static int brcmf_sdio_pd_remove(struct platform_device *pdev)
}
};
+void brcmf_sdio_register(void)
+{
+ int ret;
+
+ ret = sdio_register_driver(&brcmf_sdmmc_driver);
+ if (ret)
+ brcmf_err("sdio_register_driver failed: %d\n", ret);
+}
+
void brcmf_sdio_exit(void)
{
brcmf_dbg(SDIO, "Enter\n");
sdio_unregister_driver(&brcmf_sdmmc_driver);
}
-void brcmf_sdio_init(void)
+void __init brcmf_sdio_init(void)
{
int ret;
brcmf_dbg(SDIO, "Enter\n");
ret = platform_driver_probe(&brcmf_sdio_pd, brcmf_sdio_pd_probe);
- if (ret == -ENODEV) {
- brcmf_dbg(SDIO, "No platform data available, registering without.\n");
- ret = sdio_register_driver(&brcmf_sdmmc_driver);
- }
-
- if (ret)
- brcmf_err("driver registration failed: %d\n", ret);
+ if (ret == -ENODEV)
+ brcmf_dbg(SDIO, "No platform data available.\n");
}
#ifdef CONFIG_BRCMFMAC_SDIO
extern void brcmf_sdio_exit(void);
extern void brcmf_sdio_init(void);
+extern void brcmf_sdio_register(void);
#endif
#ifdef CONFIG_BRCMFMAC_USB
extern void brcmf_usb_exit(void);
-extern void brcmf_usb_init(void);
+extern void brcmf_usb_register(void);
#endif
#endif /* _BRCMF_BUS_H_ */
return bus->chip << 4 | bus->chiprev;
}
-static void brcmf_driver_init(struct work_struct *work)
+static void brcmf_driver_register(struct work_struct *work)
{
- brcmf_debugfs_init();
-
#ifdef CONFIG_BRCMFMAC_SDIO
- brcmf_sdio_init();
+ brcmf_sdio_register();
#endif
#ifdef CONFIG_BRCMFMAC_USB
- brcmf_usb_init();
+ brcmf_usb_register();
#endif
}
-static DECLARE_WORK(brcmf_driver_work, brcmf_driver_init);
+static DECLARE_WORK(brcmf_driver_work, brcmf_driver_register);
static int __init brcmfmac_module_init(void)
{
+ brcmf_debugfs_init();
+#ifdef CONFIG_BRCMFMAC_SDIO
+ brcmf_sdio_init();
+#endif
if (!schedule_work(&brcmf_driver_work))
return -EBUSY;
brcmf_release_fw(&fw_image_list);
}
-void brcmf_usb_init(void)
+void brcmf_usb_register(void)
{
brcmf_dbg(USB, "Enter\n");
INIT_LIST_HEAD(&fw_image_list);
if (err != 0)
brcms_err(wl->wlc->hw->d11core, "%s: brcms_up() returned %d\n",
__func__, err);
+
+ bcma_core_pci_power_save(wl->wlc->hw->d11core->bus, true);
return err;
}
return;
}
+ bcma_core_pci_power_save(wl->wlc->hw->d11core->bus, false);
+
/* put driver in down state */
spin_lock_bh(&wl->lock);
brcms_down(wl);
spinlock_t lock; /* Serialize all bus operations */
wait_queue_head_t wq;
int claimed;
- int irq_disabled;
};
#define SDIO_TO_SPI_ADDR(addr) ((addr & 0x1f)>>2)
struct hwbus_priv *self = dev_id;
if (self->core) {
- disable_irq_nosync(self->func->irq);
- self->irq_disabled = 1;
+ cw1200_spi_lock(self);
cw1200_irq_handler(self->core);
+ cw1200_spi_unlock(self);
return IRQ_HANDLED;
} else {
return IRQ_NONE;
pr_debug("SW IRQ subscribe\n");
- ret = request_any_context_irq(self->func->irq, cw1200_spi_irq_handler,
- IRQF_TRIGGER_HIGH,
- "cw1200_wlan_irq", self);
+ ret = request_threaded_irq(self->func->irq, NULL,
+ cw1200_spi_irq_handler,
+ IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
+ "cw1200_wlan_irq", self);
if (WARN_ON(ret < 0))
goto exit;
static int cw1200_spi_irq_unsubscribe(struct hwbus_priv *self)
{
+ int ret = 0;
+
pr_debug("SW IRQ unsubscribe\n");
disable_irq_wake(self->func->irq);
free_irq(self->func->irq, self);
- return 0;
-}
-
-static int cw1200_spi_irq_enable(struct hwbus_priv *self, int enable)
-{
- /* Disables are handled by the interrupt handler */
- if (enable && self->irq_disabled) {
- enable_irq(self->func->irq);
- self->irq_disabled = 0;
- }
-
- return 0;
+ return ret;
}
static int cw1200_spi_off(const struct cw1200_platform_data_spi *pdata)
.unlock = cw1200_spi_unlock,
.align_size = cw1200_spi_align_size,
.power_mgmt = cw1200_spi_pm,
- .irq_enable = cw1200_spi_irq_enable,
};
/* Probe Function to be called by SPI stack when device is discovered */
/* Enable interrupt signalling */
priv->hwbus_ops->lock(priv->hwbus_priv);
- ret = __cw1200_irq_enable(priv, 2);
+ ret = __cw1200_irq_enable(priv, 1);
priv->hwbus_ops->unlock(priv->hwbus_priv);
if (ret < 0)
goto unsubscribe;
void (*unlock)(struct hwbus_priv *self);
size_t (*align_size)(struct hwbus_priv *self, size_t size);
int (*power_mgmt)(struct hwbus_priv *self, bool suspend);
- int (*irq_enable)(struct hwbus_priv *self, int enable);
};
#endif /* CW1200_HWBUS_H */
u16 val16;
int ret;
- /* We need to do this hack because the SPI layer can sleep on I/O
- and the general path involves I/O to the device in interrupt
- context.
-
- However, the initial enable call needs to go to the hardware.
-
- We don't worry about shutdown because we do a full reset which
- clears the interrupt enabled bits.
- */
- if (priv->hwbus_ops->irq_enable) {
- ret = priv->hwbus_ops->irq_enable(priv->hwbus_priv, enable);
- if (ret || enable < 2)
- return ret;
- }
-
if (HIF_8601_SILICON == priv->hw_type) {
ret = __cw1200_reg_read_32(priv, ST90TDS_CONFIG_REG_ID, &val32);
if (ret < 0) {
.ht_params = &iwl6000_ht_params,
};
+const struct iwl_cfg iwl6035_2agn_sff_cfg = {
+ .name = "Intel(R) Centrino(R) Ultimate-N 6235 AGN",
+ IWL_DEVICE_6035,
+ .ht_params = &iwl6000_ht_params,
+};
+
const struct iwl_cfg iwl1030_bgn_cfg = {
.name = "Intel(R) Centrino(R) Wireless-N 1030 BGN",
IWL_DEVICE_6030,
extern const struct iwl_cfg iwl2000_2bgn_d_cfg;
extern const struct iwl_cfg iwl2030_2bgn_cfg;
extern const struct iwl_cfg iwl6035_2agn_cfg;
+extern const struct iwl_cfg iwl6035_2agn_sff_cfg;
extern const struct iwl_cfg iwl105_bgn_cfg;
extern const struct iwl_cfg iwl105_bgn_d_cfg;
extern const struct iwl_cfg iwl135_bgn_cfg;
{
int ret;
- WARN_ONCE(trans->state != IWL_TRANS_FW_ALIVE,
- "%s bad state = %d", __func__, trans->state);
+ if (trans->state != IWL_TRANS_FW_ALIVE) {
+ IWL_ERR(trans, "%s bad state = %d", __func__, trans->state);
+ return -EIO;
+ }
if (!(cmd->flags & CMD_ASYNC))
lock_map_acquire_read(&trans->sync_cmd_lockdep_map);
if (!mvmvif->queue_params[ac].uapsd)
continue;
- cmd->flags |= cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK);
+ if (mvm->cur_ucode != IWL_UCODE_WOWLAN)
+ cmd->flags |=
+ cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK);
+
cmd->uapsd_ac_flags |= BIT(ac);
/* QNDP TID - the highest TID with no admission control */
return false;
}
+ /*
+ * If scan cannot be aborted, it means that we had a
+ * SCAN_COMPLETE_NOTIFICATION in the pipe and it called
+ * ieee80211_scan_completed already.
+ */
IWL_DEBUG_SCAN(mvm, "Scan cannot be aborted, exit now: %d\n",
*resp);
return true;
SCAN_COMPLETE_NOTIFICATION };
int ret;
+ if (mvm->scan_status == IWL_MVM_SCAN_NONE)
+ return;
+
iwl_init_notification_wait(&mvm->notif_wait, &wait_scan_abort,
scan_abort_notif,
ARRAY_SIZE(scan_abort_notif),
iwl_mvm_scan_abort_notif, NULL);
- ret = iwl_mvm_send_cmd_pdu(mvm, SCAN_ABORT_CMD, CMD_SYNC, 0, NULL);
+ ret = iwl_mvm_send_cmd_pdu(mvm, SCAN_ABORT_CMD,
+ CMD_SYNC | CMD_SEND_IN_RFKILL, 0, NULL);
if (ret) {
IWL_ERR(mvm, "Couldn't send SCAN_ABORT_CMD: %d\n", ret);
+ /* mac80211's state will be cleaned in the fw_restart flow */
goto out_remove_notif;
}
/* 6x00 Series */
{IWL_PCI_DEVICE(0x422B, 0x1101, iwl6000_3agn_cfg)},
+ {IWL_PCI_DEVICE(0x422B, 0x1108, iwl6000_3agn_cfg)},
{IWL_PCI_DEVICE(0x422B, 0x1121, iwl6000_3agn_cfg)},
+ {IWL_PCI_DEVICE(0x422B, 0x1128, iwl6000_3agn_cfg)},
{IWL_PCI_DEVICE(0x422C, 0x1301, iwl6000i_2agn_cfg)},
{IWL_PCI_DEVICE(0x422C, 0x1306, iwl6000i_2abg_cfg)},
{IWL_PCI_DEVICE(0x422C, 0x1307, iwl6000i_2bg_cfg)},
{IWL_PCI_DEVICE(0x422C, 0x1321, iwl6000i_2agn_cfg)},
{IWL_PCI_DEVICE(0x422C, 0x1326, iwl6000i_2abg_cfg)},
{IWL_PCI_DEVICE(0x4238, 0x1111, iwl6000_3agn_cfg)},
+ {IWL_PCI_DEVICE(0x4238, 0x1118, iwl6000_3agn_cfg)},
{IWL_PCI_DEVICE(0x4239, 0x1311, iwl6000i_2agn_cfg)},
{IWL_PCI_DEVICE(0x4239, 0x1316, iwl6000i_2abg_cfg)},
{IWL_PCI_DEVICE(0x0082, 0x1301, iwl6005_2agn_cfg)},
{IWL_PCI_DEVICE(0x0082, 0x1306, iwl6005_2abg_cfg)},
{IWL_PCI_DEVICE(0x0082, 0x1307, iwl6005_2bg_cfg)},
+ {IWL_PCI_DEVICE(0x0082, 0x1308, iwl6005_2agn_cfg)},
{IWL_PCI_DEVICE(0x0082, 0x1321, iwl6005_2agn_cfg)},
{IWL_PCI_DEVICE(0x0082, 0x1326, iwl6005_2abg_cfg)},
+ {IWL_PCI_DEVICE(0x0082, 0x1328, iwl6005_2agn_cfg)},
{IWL_PCI_DEVICE(0x0085, 0x1311, iwl6005_2agn_cfg)},
+ {IWL_PCI_DEVICE(0x0085, 0x1318, iwl6005_2agn_cfg)},
{IWL_PCI_DEVICE(0x0085, 0x1316, iwl6005_2abg_cfg)},
{IWL_PCI_DEVICE(0x0082, 0xC020, iwl6005_2agn_sff_cfg)},
{IWL_PCI_DEVICE(0x0085, 0xC220, iwl6005_2agn_sff_cfg)},
+ {IWL_PCI_DEVICE(0x0085, 0xC228, iwl6005_2agn_sff_cfg)},
{IWL_PCI_DEVICE(0x0082, 0x4820, iwl6005_2agn_d_cfg)},
{IWL_PCI_DEVICE(0x0082, 0x1304, iwl6005_2agn_mow1_cfg)},/* low 5GHz active */
{IWL_PCI_DEVICE(0x0082, 0x1305, iwl6005_2agn_mow2_cfg)},/* high 5GHz active */
/* 6x35 Series */
{IWL_PCI_DEVICE(0x088E, 0x4060, iwl6035_2agn_cfg)},
+ {IWL_PCI_DEVICE(0x088E, 0x406A, iwl6035_2agn_sff_cfg)},
{IWL_PCI_DEVICE(0x088F, 0x4260, iwl6035_2agn_cfg)},
+ {IWL_PCI_DEVICE(0x088F, 0x426A, iwl6035_2agn_sff_cfg)},
{IWL_PCI_DEVICE(0x088E, 0x4460, iwl6035_2agn_cfg)},
+ {IWL_PCI_DEVICE(0x088E, 0x446A, iwl6035_2agn_sff_cfg)},
{IWL_PCI_DEVICE(0x088E, 0x4860, iwl6035_2agn_cfg)},
{IWL_PCI_DEVICE(0x088F, 0x5260, iwl6035_2agn_cfg)},
#if IS_ENABLED(CONFIG_IWLMVM)
/* 7000 Series */
{IWL_PCI_DEVICE(0x08B1, 0x4070, iwl7260_2ac_cfg)},
+ {IWL_PCI_DEVICE(0x08B1, 0x4072, iwl7260_2ac_cfg)},
{IWL_PCI_DEVICE(0x08B1, 0x4170, iwl7260_2ac_cfg)},
{IWL_PCI_DEVICE(0x08B1, 0x4060, iwl7260_2n_cfg)},
+ {IWL_PCI_DEVICE(0x08B1, 0x406A, iwl7260_2n_cfg)},
{IWL_PCI_DEVICE(0x08B1, 0x4160, iwl7260_2n_cfg)},
{IWL_PCI_DEVICE(0x08B1, 0x4062, iwl7260_n_cfg)},
{IWL_PCI_DEVICE(0x08B1, 0x4162, iwl7260_n_cfg)},
{IWL_PCI_DEVICE(0x08B2, 0x4270, iwl7260_2ac_cfg)},
+ {IWL_PCI_DEVICE(0x08B2, 0x4272, iwl7260_2ac_cfg)},
{IWL_PCI_DEVICE(0x08B2, 0x4260, iwl7260_2n_cfg)},
+ {IWL_PCI_DEVICE(0x08B2, 0x426A, iwl7260_2n_cfg)},
{IWL_PCI_DEVICE(0x08B2, 0x4262, iwl7260_n_cfg)},
{IWL_PCI_DEVICE(0x08B1, 0x4470, iwl7260_2ac_cfg)},
+ {IWL_PCI_DEVICE(0x08B1, 0x4472, iwl7260_2ac_cfg)},
{IWL_PCI_DEVICE(0x08B1, 0x4460, iwl7260_2n_cfg)},
+ {IWL_PCI_DEVICE(0x08B1, 0x446A, iwl7260_2n_cfg)},
{IWL_PCI_DEVICE(0x08B1, 0x4462, iwl7260_n_cfg)},
{IWL_PCI_DEVICE(0x08B1, 0x4870, iwl7260_2ac_cfg)},
{IWL_PCI_DEVICE(0x08B1, 0x486E, iwl7260_2ac_cfg)},
{IWL_PCI_DEVICE(0x08B1, 0x4A70, iwl7260_2ac_cfg_high_temp)},
{IWL_PCI_DEVICE(0x08B1, 0x4A6E, iwl7260_2ac_cfg_high_temp)},
{IWL_PCI_DEVICE(0x08B1, 0x4A6C, iwl7260_2ac_cfg_high_temp)},
+ {IWL_PCI_DEVICE(0x08B1, 0x4570, iwl7260_2ac_cfg)},
+ {IWL_PCI_DEVICE(0x08B1, 0x4560, iwl7260_2n_cfg)},
+ {IWL_PCI_DEVICE(0x08B2, 0x4370, iwl7260_2ac_cfg)},
+ {IWL_PCI_DEVICE(0x08B2, 0x4360, iwl7260_2n_cfg)},
+ {IWL_PCI_DEVICE(0x08B1, 0x5070, iwl7260_2ac_cfg)},
{IWL_PCI_DEVICE(0x08B1, 0x4020, iwl7260_2n_cfg)},
+ {IWL_PCI_DEVICE(0x08B1, 0x402A, iwl7260_2n_cfg)},
{IWL_PCI_DEVICE(0x08B2, 0x4220, iwl7260_2n_cfg)},
{IWL_PCI_DEVICE(0x08B1, 0x4420, iwl7260_2n_cfg)},
{IWL_PCI_DEVICE(0x08B1, 0xC070, iwl7260_2ac_cfg)},
+ {IWL_PCI_DEVICE(0x08B1, 0xC072, iwl7260_2ac_cfg)},
{IWL_PCI_DEVICE(0x08B1, 0xC170, iwl7260_2ac_cfg)},
{IWL_PCI_DEVICE(0x08B1, 0xC060, iwl7260_2n_cfg)},
+ {IWL_PCI_DEVICE(0x08B1, 0xC06A, iwl7260_2n_cfg)},
{IWL_PCI_DEVICE(0x08B1, 0xC160, iwl7260_2n_cfg)},
{IWL_PCI_DEVICE(0x08B1, 0xC062, iwl7260_n_cfg)},
{IWL_PCI_DEVICE(0x08B1, 0xC162, iwl7260_n_cfg)},
+ {IWL_PCI_DEVICE(0x08B1, 0xC770, iwl7260_2ac_cfg)},
+ {IWL_PCI_DEVICE(0x08B1, 0xC760, iwl7260_2n_cfg)},
{IWL_PCI_DEVICE(0x08B2, 0xC270, iwl7260_2ac_cfg)},
+ {IWL_PCI_DEVICE(0x08B2, 0xC272, iwl7260_2ac_cfg)},
{IWL_PCI_DEVICE(0x08B2, 0xC260, iwl7260_2n_cfg)},
+ {IWL_PCI_DEVICE(0x08B2, 0xC26A, iwl7260_n_cfg)},
{IWL_PCI_DEVICE(0x08B2, 0xC262, iwl7260_n_cfg)},
{IWL_PCI_DEVICE(0x08B1, 0xC470, iwl7260_2ac_cfg)},
+ {IWL_PCI_DEVICE(0x08B1, 0xC472, iwl7260_2ac_cfg)},
{IWL_PCI_DEVICE(0x08B1, 0xC460, iwl7260_2n_cfg)},
{IWL_PCI_DEVICE(0x08B1, 0xC462, iwl7260_n_cfg)},
+ {IWL_PCI_DEVICE(0x08B1, 0xC570, iwl7260_2ac_cfg)},
+ {IWL_PCI_DEVICE(0x08B1, 0xC560, iwl7260_2n_cfg)},
+ {IWL_PCI_DEVICE(0x08B2, 0xC370, iwl7260_2ac_cfg)},
+ {IWL_PCI_DEVICE(0x08B1, 0xC360, iwl7260_2n_cfg)},
{IWL_PCI_DEVICE(0x08B1, 0xC020, iwl7260_2n_cfg)},
+ {IWL_PCI_DEVICE(0x08B1, 0xC02A, iwl7260_2n_cfg)},
{IWL_PCI_DEVICE(0x08B2, 0xC220, iwl7260_2n_cfg)},
{IWL_PCI_DEVICE(0x08B1, 0xC420, iwl7260_2n_cfg)},
/* 3160 Series */
{IWL_PCI_DEVICE(0x08B3, 0x0070, iwl3160_2ac_cfg)},
+ {IWL_PCI_DEVICE(0x08B3, 0x0072, iwl3160_2ac_cfg)},
{IWL_PCI_DEVICE(0x08B3, 0x0170, iwl3160_2ac_cfg)},
+ {IWL_PCI_DEVICE(0x08B3, 0x0172, iwl3160_2ac_cfg)},
{IWL_PCI_DEVICE(0x08B3, 0x0060, iwl3160_2n_cfg)},
{IWL_PCI_DEVICE(0x08B3, 0x0062, iwl3160_n_cfg)},
{IWL_PCI_DEVICE(0x08B4, 0x0270, iwl3160_2ac_cfg)},
+ {IWL_PCI_DEVICE(0x08B4, 0x0272, iwl3160_2ac_cfg)},
{IWL_PCI_DEVICE(0x08B3, 0x0470, iwl3160_2ac_cfg)},
+ {IWL_PCI_DEVICE(0x08B3, 0x0472, iwl3160_2ac_cfg)},
+ {IWL_PCI_DEVICE(0x08B4, 0x0370, iwl3160_2ac_cfg)},
{IWL_PCI_DEVICE(0x08B3, 0x8070, iwl3160_2ac_cfg)},
+ {IWL_PCI_DEVICE(0x08B3, 0x8072, iwl3160_2ac_cfg)},
{IWL_PCI_DEVICE(0x08B3, 0x8170, iwl3160_2ac_cfg)},
+ {IWL_PCI_DEVICE(0x08B3, 0x8172, iwl3160_2ac_cfg)},
{IWL_PCI_DEVICE(0x08B3, 0x8060, iwl3160_2n_cfg)},
{IWL_PCI_DEVICE(0x08B3, 0x8062, iwl3160_n_cfg)},
{IWL_PCI_DEVICE(0x08B4, 0x8270, iwl3160_2ac_cfg)},
{IWL_PCI_DEVICE(0x08B3, 0x8470, iwl3160_2ac_cfg)},
+ {IWL_PCI_DEVICE(0x08B3, 0x8570, iwl3160_2ac_cfg)},
#endif /* CONFIG_IWLMVM */
{0}
spin_lock_init(&trans_pcie->reg_lock);
init_waitqueue_head(&trans_pcie->ucode_write_waitq);
+ err = pci_enable_device(pdev);
+ if (err)
+ goto out_no_pci;
+
if (!cfg->base_params->pcie_l1_allowed) {
/*
* W/A - seems to solve weird behavior. We need to remove this
PCIE_LINK_STATE_CLKPM);
}
- err = pci_enable_device(pdev);
- if (err)
- goto out_no_pci;
-
pci_set_master(pdev);
err = pci_set_dma_mask(pdev, DMA_BIT_MASK(36));
* non-AGG queue.
*/
iwl_clear_bits_prph(trans, SCD_AGGR_SEL, BIT(txq_id));
+
+ ssn = trans_pcie->txq[txq_id].q.read_ptr;
}
/* Place first TFD at index corresponding to start sequence number.
*/
int
mwifiex_11n_aggregate_pkt(struct mwifiex_private *priv,
- struct mwifiex_ra_list_tbl *pra_list, int headroom,
+ struct mwifiex_ra_list_tbl *pra_list,
int ptrindex, unsigned long ra_list_flags)
__releases(&priv->wmm.ra_list_spinlock)
{
int pad = 0, ret;
struct mwifiex_tx_param tx_param;
struct txpd *ptx_pd = NULL;
+ int headroom = adapter->iface_type == MWIFIEX_USB ? 0 : INTF_HEADER_LEN;
skb_src = skb_peek(&pra_list->skb_head);
if (!skb_src) {
int mwifiex_11n_deaggregate_pkt(struct mwifiex_private *priv,
struct sk_buff *skb);
int mwifiex_11n_aggregate_pkt(struct mwifiex_private *priv,
- struct mwifiex_ra_list_tbl *ptr, int headroom,
+ struct mwifiex_ra_list_tbl *ptr,
int ptr_index, unsigned long flags)
__releases(&priv->wmm.ra_list_spinlock);
uint32_t conditions = le32_to_cpu(phs_cfg->params.hs_config.conditions);
if (phs_cfg->action == cpu_to_le16(HS_ACTIVATE) &&
- adapter->iface_type == MWIFIEX_SDIO) {
+ adapter->iface_type != MWIFIEX_USB) {
mwifiex_hs_activated_event(priv, true);
return 0;
} else {
}
if (conditions != HS_CFG_CANCEL) {
adapter->is_hs_configured = true;
- if (adapter->iface_type == MWIFIEX_USB ||
- adapter->iface_type == MWIFIEX_PCIE)
+ if (adapter->iface_type == MWIFIEX_USB)
mwifiex_hs_activated_event(priv, true);
} else {
adapter->is_hs_configured = false;
*/
int mwifiex_deauthenticate(struct mwifiex_private *priv, u8 *mac)
{
+ int ret = 0;
+
if (!priv->media_connected)
return 0;
switch (priv->bss_mode) {
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_P2P_CLIENT:
- return mwifiex_deauthenticate_infra(priv, mac);
+ ret = mwifiex_deauthenticate_infra(priv, mac);
+ if (ret)
+ cfg80211_disconnected(priv->netdev, 0, NULL, 0,
+ GFP_KERNEL);
+ break;
case NL80211_IFTYPE_ADHOC:
return mwifiex_send_cmd_sync(priv,
HostCmd_CMD_802_11_AD_HOC_STOP,
break;
}
- return 0;
+ return ret;
}
EXPORT_SYMBOL_GPL(mwifiex_deauthenticate);
}
} while (true);
- if ((adapter->int_status) || IS_CARD_RX_RCVD(adapter))
+ spin_lock_irqsave(&adapter->main_proc_lock, flags);
+ if ((adapter->int_status) || IS_CARD_RX_RCVD(adapter)) {
+ spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
goto process_start;
+ }
- spin_lock_irqsave(&adapter->main_proc_lock, flags);
adapter->mwifiex_processing = false;
spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
dev_dbg(adapter->dev,
"info: successfully disconnected from %pM: reason code %d\n",
priv->cfg_bssid, reason_code);
- if (priv->bss_mode == NL80211_IFTYPE_STATION) {
+ if (priv->bss_mode == NL80211_IFTYPE_STATION ||
+ priv->bss_mode == NL80211_IFTYPE_P2P_CLIENT) {
cfg80211_disconnected(priv->netdev, reason_code, NULL, 0,
GFP_KERNEL);
}
*/
adapter->is_suspended = true;
- for (i = 0; i < adapter->priv_num; i++)
- netif_carrier_off(adapter->priv[i]->netdev);
-
if (atomic_read(&card->rx_cmd_urb_pending) && card->rx_cmd.urb)
usb_kill_urb(card->rx_cmd.urb);
MWIFIEX_RX_CMD_BUF_SIZE);
}
- for (i = 0; i < adapter->priv_num; i++)
- if (adapter->priv[i]->media_connected)
- netif_carrier_on(adapter->priv[i]->netdev);
-
/* Disable Host Sleep */
if (adapter->hs_activated)
mwifiex_cancel_hs(mwifiex_get_priv(adapter,
if (enable_tx_amsdu && mwifiex_is_amsdu_allowed(priv, tid) &&
mwifiex_is_11n_aggragation_possible(priv, ptr,
adapter->tx_buf_size))
- mwifiex_11n_aggregate_pkt(priv, ptr, INTF_HEADER_LEN,
- ptr_index, flags);
+ mwifiex_11n_aggregate_pkt(priv, ptr, ptr_index, flags);
/* ra_list_spinlock has been freed in
mwifiex_11n_aggregate_pkt() */
else
{USB_DEVICE(0x06a9, 0x000e)}, /* Westell 802.11g USB (A90-211WG-01) */
{USB_DEVICE(0x06b9, 0x0121)}, /* Thomson SpeedTouch 121g */
{USB_DEVICE(0x0707, 0xee13)}, /* SMC 2862W-G version 2 */
+ {USB_DEVICE(0x07aa, 0x0020)}, /* Corega WLUSB2GTST USB */
{USB_DEVICE(0x0803, 0x4310)}, /* Zoom 4410a */
{USB_DEVICE(0x083a, 0x4521)}, /* Siemens Gigaset USB Adapter 54 version 2 */
{USB_DEVICE(0x083a, 0x4531)}, /* T-Com Sinus 154 data II */
if (err) {
dev_err(&priv->udev->dev, "(p54usb) cannot load firmware %s "
"(%d)!\n", p54u_fwlist[i].fw, err);
+ usb_put_dev(udev);
}
return err;
goto exit_release_regions;
}
- pci_enable_msi(pci_dev);
-
hw = ieee80211_alloc_hw(sizeof(struct rt2x00_dev), ops->hw);
if (!hw) {
rt2x00_probe_err("Failed to allocate hardware\n");
retval = -ENOMEM;
- goto exit_disable_msi;
+ goto exit_release_regions;
}
pci_set_drvdata(pci_dev, hw);
exit_free_device:
ieee80211_free_hw(hw);
-exit_disable_msi:
- pci_disable_msi(pci_dev);
-
exit_release_regions:
pci_release_regions(pci_dev);
rt2x00pci_free_reg(rt2x00dev);
ieee80211_free_hw(hw);
- pci_disable_msi(pci_dev);
-
/*
* Free the PCI device data.
*/
(bool)GET_RX_DESC_PAGGR(pdesc));
rx_status->mactime = GET_RX_DESC_TSFL(pdesc);
if (phystatus) {
- p_drvinfo = (struct rx_fwinfo_92c *)(pdesc + RTL_RX_DESC_SIZE);
+ p_drvinfo = (struct rx_fwinfo_92c *)(skb->data +
+ stats->rx_bufshift);
rtl92c_translate_rx_signal_stuff(hw, skb, stats, pdesc,
p_drvinfo);
}
that it points to the data allocated
beyond this structure like:
rtl_pci_priv or rtl_usb_priv */
- u8 priv[0];
+ u8 priv[0] __aligned(sizeof(void *));
};
#define rtl_priv(hw) (((struct rtl_priv *)(hw)->priv))
struct backend_info {
struct xenbus_device *dev;
struct xenvif *vif;
+
+ /* This is the state that will be reflected in xenstore when any
+ * active hotplug script completes.
+ */
+ enum xenbus_state state;
+
enum xenbus_state frontend_state;
struct xenbus_watch hotplug_status_watch;
u8 have_hotplug_status_watch:1;
static void connect(struct backend_info *);
static void backend_create_xenvif(struct backend_info *be);
static void unregister_hotplug_status_watch(struct backend_info *be);
+static void set_backend_state(struct backend_info *be,
+ enum xenbus_state state);
static int netback_remove(struct xenbus_device *dev)
{
struct backend_info *be = dev_get_drvdata(&dev->dev);
+ set_backend_state(be, XenbusStateClosed);
+
unregister_hotplug_status_watch(be);
if (be->vif) {
kobject_uevent(&dev->dev.kobj, KOBJ_OFFLINE);
if (err)
goto fail;
+ be->state = XenbusStateInitWait;
+
/* This kicks hotplug scripts, so do it immediately. */
backend_create_xenvif(be);
kobject_uevent(&dev->dev.kobj, KOBJ_ONLINE);
}
-
-static void disconnect_backend(struct xenbus_device *dev)
+static void backend_disconnect(struct backend_info *be)
{
- struct backend_info *be = dev_get_drvdata(&dev->dev);
-
if (be->vif)
xenvif_disconnect(be->vif);
}
-static void destroy_backend(struct xenbus_device *dev)
+static void backend_connect(struct backend_info *be)
{
- struct backend_info *be = dev_get_drvdata(&dev->dev);
+ if (be->vif)
+ connect(be);
+}
- if (be->vif) {
- kobject_uevent(&dev->dev.kobj, KOBJ_OFFLINE);
- xenbus_rm(XBT_NIL, dev->nodename, "hotplug-status");
- xenvif_free(be->vif);
- be->vif = NULL;
+static inline void backend_switch_state(struct backend_info *be,
+ enum xenbus_state state)
+{
+ struct xenbus_device *dev = be->dev;
+
+ pr_debug("%s -> %s\n", dev->nodename, xenbus_strstate(state));
+ be->state = state;
+
+ /* If we are waiting for a hotplug script then defer the
+ * actual xenbus state change.
+ */
+ if (!be->have_hotplug_status_watch)
+ xenbus_switch_state(dev, state);
+}
+
+/* Handle backend state transitions:
+ *
+ * The backend state starts in InitWait and the following transitions are
+ * allowed.
+ *
+ * InitWait -> Connected
+ *
+ * ^ \ |
+ * | \ |
+ * | \ |
+ * | \ |
+ * | \ |
+ * | \ |
+ * | V V
+ *
+ * Closed <-> Closing
+ *
+ * The state argument specifies the eventual state of the backend and the
+ * function transitions to that state via the shortest path.
+ */
+static void set_backend_state(struct backend_info *be,
+ enum xenbus_state state)
+{
+ while (be->state != state) {
+ switch (be->state) {
+ case XenbusStateClosed:
+ switch (state) {
+ case XenbusStateInitWait:
+ case XenbusStateConnected:
+ pr_info("%s: prepare for reconnect\n",
+ be->dev->nodename);
+ backend_switch_state(be, XenbusStateInitWait);
+ break;
+ case XenbusStateClosing:
+ backend_switch_state(be, XenbusStateClosing);
+ break;
+ default:
+ BUG();
+ }
+ break;
+ case XenbusStateInitWait:
+ switch (state) {
+ case XenbusStateConnected:
+ backend_connect(be);
+ backend_switch_state(be, XenbusStateConnected);
+ break;
+ case XenbusStateClosing:
+ case XenbusStateClosed:
+ backend_switch_state(be, XenbusStateClosing);
+ break;
+ default:
+ BUG();
+ }
+ break;
+ case XenbusStateConnected:
+ switch (state) {
+ case XenbusStateInitWait:
+ case XenbusStateClosing:
+ case XenbusStateClosed:
+ backend_disconnect(be);
+ backend_switch_state(be, XenbusStateClosing);
+ break;
+ default:
+ BUG();
+ }
+ break;
+ case XenbusStateClosing:
+ switch (state) {
+ case XenbusStateInitWait:
+ case XenbusStateConnected:
+ case XenbusStateClosed:
+ backend_switch_state(be, XenbusStateClosed);
+ break;
+ default:
+ BUG();
+ }
+ break;
+ default:
+ BUG();
+ }
}
}
{
struct backend_info *be = dev_get_drvdata(&dev->dev);
- pr_debug("frontend state %s\n", xenbus_strstate(frontend_state));
+ pr_debug("%s -> %s\n", dev->otherend, xenbus_strstate(frontend_state));
be->frontend_state = frontend_state;
switch (frontend_state) {
case XenbusStateInitialising:
- if (dev->state == XenbusStateClosed) {
- pr_info("%s: prepare for reconnect\n", dev->nodename);
- xenbus_switch_state(dev, XenbusStateInitWait);
- }
+ set_backend_state(be, XenbusStateInitWait);
break;
case XenbusStateInitialised:
break;
case XenbusStateConnected:
- if (dev->state == XenbusStateConnected)
- break;
- if (be->vif)
- connect(be);
+ set_backend_state(be, XenbusStateConnected);
break;
case XenbusStateClosing:
- disconnect_backend(dev);
- xenbus_switch_state(dev, XenbusStateClosing);
+ set_backend_state(be, XenbusStateClosing);
break;
case XenbusStateClosed:
- xenbus_switch_state(dev, XenbusStateClosed);
+ set_backend_state(be, XenbusStateClosed);
if (xenbus_dev_is_online(dev))
break;
- destroy_backend(dev);
/* fall through if not online */
case XenbusStateUnknown:
+ set_backend_state(be, XenbusStateClosed);
device_unregister(&dev->dev);
break;
if (IS_ERR(str))
return;
if (len == sizeof("connected")-1 && !memcmp(str, "connected", len)) {
- xenbus_switch_state(be->dev, XenbusStateConnected);
+ /* Complete any pending state change */
+ xenbus_switch_state(be->dev, be->state);
+
/* Not interested in this watch anymore. */
unregister_hotplug_status_watch(be);
}
err = xenbus_watch_pathfmt(dev, &be->hotplug_status_watch,
hotplug_status_changed,
"%s/%s", dev->nodename, "hotplug-status");
- if (err) {
- /* Switch now, since we can't do a watch. */
- xenbus_switch_state(dev, XenbusStateConnected);
- } else {
+ if (!err)
be->have_hotplug_status_watch = 1;
- }
netif_wake_queue(be->vif->dev);
}
depends on MTD
def_bool y
-config OF_RESERVED_MEM
- depends on OF_FLATTREE && (DMA_CMA || (HAVE_GENERIC_DMA_COHERENT && HAVE_MEMBLOCK))
- def_bool y
- help
- Initialization code for DMA reserved memory
-
endmenu # OF
obj-$(CONFIG_OF_PCI) += of_pci.o
obj-$(CONFIG_OF_PCI_IRQ) += of_pci_irq.o
obj-$(CONFIG_OF_MTD) += of_mtd.o
-obj-$(CONFIG_OF_RESERVED_MEM) += of_reserved_mem.o
struct device_node *cpun, *cpus;
cpus = of_find_node_by_path("/cpus");
- if (!cpus) {
- pr_warn("Missing cpus node, bailing out\n");
+ if (!cpus)
return NULL;
- }
for_each_child_of_node(cpus, cpun) {
if (of_node_cmp(cpun->type, "cpu"))
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/slab.h>
-#include <linux/random.h>
#include <asm/setup.h> /* for COMMAND_LINE_SIZE */
#ifdef CONFIG_PPC
}
#endif /* CONFIG_OF_EARLY_FLATTREE */
-
-/* Feed entire flattened device tree into the random pool */
-static int __init add_fdt_randomness(void)
-{
- if (initial_boot_params)
- add_device_randomness(initial_boot_params,
- be32_to_cpu(initial_boot_params->totalsize));
-
- return 0;
-}
-core_initcall(add_fdt_randomness);
+++ /dev/null
-/*
- * Device tree based initialization code for reserved memory.
- *
- * Copyright (c) 2013 Samsung Electronics Co., Ltd.
- * http://www.samsung.com
- * Author: Marek Szyprowski <m.szyprowski@samsung.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License or (at your optional) any later version of the license.
- */
-
-#include <linux/memblock.h>
-#include <linux/err.h>
-#include <linux/of.h>
-#include <linux/of_fdt.h>
-#include <linux/of_platform.h>
-#include <linux/mm.h>
-#include <linux/sizes.h>
-#include <linux/mm_types.h>
-#include <linux/dma-contiguous.h>
-#include <linux/dma-mapping.h>
-#include <linux/of_reserved_mem.h>
-
-#define MAX_RESERVED_REGIONS 16
-struct reserved_mem {
- phys_addr_t base;
- unsigned long size;
- struct cma *cma;
- char name[32];
-};
-static struct reserved_mem reserved_mem[MAX_RESERVED_REGIONS];
-static int reserved_mem_count;
-
-static int __init fdt_scan_reserved_mem(unsigned long node, const char *uname,
- int depth, void *data)
-{
- struct reserved_mem *rmem = &reserved_mem[reserved_mem_count];
- phys_addr_t base, size;
- int is_cma, is_reserved;
- unsigned long len;
- const char *status;
- __be32 *prop;
-
- is_cma = IS_ENABLED(CONFIG_DMA_CMA) &&
- of_flat_dt_is_compatible(node, "linux,contiguous-memory-region");
- is_reserved = of_flat_dt_is_compatible(node, "reserved-memory-region");
-
- if (!is_reserved && !is_cma) {
- /* ignore node and scan next one */
- return 0;
- }
-
- status = of_get_flat_dt_prop(node, "status", &len);
- if (status && strcmp(status, "okay") != 0) {
- /* ignore disabled node nad scan next one */
- return 0;
- }
-
- prop = of_get_flat_dt_prop(node, "reg", &len);
- if (!prop || (len < (dt_root_size_cells + dt_root_addr_cells) *
- sizeof(__be32))) {
- pr_err("Reserved mem: node %s, incorrect \"reg\" property\n",
- uname);
- /* ignore node and scan next one */
- return 0;
- }
- base = dt_mem_next_cell(dt_root_addr_cells, &prop);
- size = dt_mem_next_cell(dt_root_size_cells, &prop);
-
- if (!size) {
- /* ignore node and scan next one */
- return 0;
- }
-
- pr_info("Reserved mem: found %s, memory base %lx, size %ld MiB\n",
- uname, (unsigned long)base, (unsigned long)size / SZ_1M);
-
- if (reserved_mem_count == ARRAY_SIZE(reserved_mem))
- return -ENOSPC;
-
- rmem->base = base;
- rmem->size = size;
- strlcpy(rmem->name, uname, sizeof(rmem->name));
-
- if (is_cma) {
- struct cma *cma;
- if (dma_contiguous_reserve_area(size, base, 0, &cma) == 0) {
- rmem->cma = cma;
- reserved_mem_count++;
- if (of_get_flat_dt_prop(node,
- "linux,default-contiguous-region",
- NULL))
- dma_contiguous_set_default(cma);
- }
- } else if (is_reserved) {
- if (memblock_remove(base, size) == 0)
- reserved_mem_count++;
- else
- pr_err("Failed to reserve memory for %s\n", uname);
- }
-
- return 0;
-}
-
-static struct reserved_mem *get_dma_memory_region(struct device *dev)
-{
- struct device_node *node;
- const char *name;
- int i;
-
- node = of_parse_phandle(dev->of_node, "memory-region", 0);
- if (!node)
- return NULL;
-
- name = kbasename(node->full_name);
- for (i = 0; i < reserved_mem_count; i++)
- if (strcmp(name, reserved_mem[i].name) == 0)
- return &reserved_mem[i];
- return NULL;
-}
-
-/**
- * of_reserved_mem_device_init() - assign reserved memory region to given device
- *
- * This function assign memory region pointed by "memory-region" device tree
- * property to the given device.
- */
-void of_reserved_mem_device_init(struct device *dev)
-{
- struct reserved_mem *region = get_dma_memory_region(dev);
- if (!region)
- return;
-
- if (region->cma) {
- dev_set_cma_area(dev, region->cma);
- pr_info("Assigned CMA %s to %s device\n", region->name,
- dev_name(dev));
- } else {
- if (dma_declare_coherent_memory(dev, region->base, region->base,
- region->size, DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE) != 0)
- pr_info("Declared reserved memory %s to %s device\n",
- region->name, dev_name(dev));
- }
-}
-
-/**
- * of_reserved_mem_device_release() - release reserved memory device structures
- *
- * This function releases structures allocated for memory region handling for
- * the given device.
- */
-void of_reserved_mem_device_release(struct device *dev)
-{
- struct reserved_mem *region = get_dma_memory_region(dev);
- if (!region && !region->cma)
- dma_release_declared_memory(dev);
-}
-
-/**
- * early_init_dt_scan_reserved_mem() - create reserved memory regions
- *
- * This function grabs memory from early allocator for device exclusive use
- * defined in device tree structures. It should be called by arch specific code
- * once the early allocator (memblock) has been activated and all other
- * subsystems have already allocated/reserved memory.
- */
-void __init early_init_dt_scan_reserved_mem(void)
-{
- of_scan_flat_dt_by_path("/memory/reserved-memory",
- fdt_scan_reserved_mem, NULL);
-}
#include <linux/of_device.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
-#include <linux/of_reserved_mem.h>
#include <linux/platform_device.h>
const struct of_device_id of_default_bus_match_table[] = {
dev->dev.bus = &platform_bus_type;
dev->dev.platform_data = platform_data;
- of_reserved_mem_device_init(&dev->dev);
-
/* We do not fill the DMA ops for platform devices by default.
* This is currently the responsibility of the platform code
* to do such, possibly using a device notifier
if (of_device_add(dev) != 0) {
platform_device_put(dev);
- of_reserved_mem_device_release(&dev->dev);
return NULL;
}
static int pcihp_is_ejectable(acpi_handle handle)
{
acpi_status status;
- acpi_handle tmp;
unsigned long long removable;
- status = acpi_get_handle(handle, "_ADR", &tmp);
- if (ACPI_FAILURE(status))
+ if (!acpi_has_method(handle, "_ADR"))
return 0;
- status = acpi_get_handle(handle, "_EJ0", &tmp);
- if (ACPI_SUCCESS(status))
+ if (acpi_has_method(handle, "_EJ0"))
return 1;
status = acpi_evaluate_integer(handle, "_RMV", NULL, &removable);
if (ACPI_SUCCESS(status) && removable)
/*
* This bridge should have been registered as a hotplug function
- * under its parent, so the context has to be there. If not, we
- * are in deep goo.
+ * under its parent, so the context should be there, unless the
+ * parent is going to be handled by pciehp, in which case this
+ * bridge is not interesting to us either.
*/
mutex_lock(&acpiphp_context_lock);
context = acpiphp_get_context(handle);
- if (WARN_ON(!context)) {
+ if (!context) {
mutex_unlock(&acpiphp_context_lock);
put_device(&bus->dev);
+ pci_dev_put(bridge->pci_dev);
kfree(bridge);
return;
}
static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state)
{
acpi_handle handle = DEVICE_ACPI_HANDLE(&dev->dev);
- acpi_handle tmp;
static const u8 state_conv[] = {
[PCI_D0] = ACPI_STATE_D0,
[PCI_D1] = ACPI_STATE_D1,
int error = -EINVAL;
/* If the ACPI device has _EJ0, ignore the device */
- if (!handle || ACPI_SUCCESS(acpi_get_handle(handle, "_EJ0", &tmp)))
+ if (!handle || acpi_has_method(handle, "_EJ0"))
return -ENODEV;
switch (state) {
pci_enable_bridge(dev->bus->self);
- if (pci_is_enabled(dev))
+ if (pci_is_enabled(dev)) {
+ if (!dev->is_busmaster) {
+ dev_warn(&dev->dev, "driver skip pci_set_master, fix it!\n");
+ pci_set_master(dev);
+ }
return;
+ }
+
retval = pci_enable_device(dev);
if (retval)
dev_err(&dev->dev, "Error enabling bridge (%d), continuing\n",
* <devicename> <state> <pinname> are values that should match the pinctrl-maps
* <newvalue> reflects the new config and is driver dependant
*/
-static int pinconf_dbg_config_write(struct file *file,
+static ssize_t pinconf_dbg_config_write(struct file *file,
const char __user *user_buf, size_t count, loff_t *ppos)
{
struct pinctrl_maps *maps_node;
int i;
/* Get userspace string and assure termination */
- buf_size = min(count, (size_t)(sizeof(buf)-1));
+ buf_size = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, buf_size))
return -EFAULT;
buf[buf_size] = 0;
/* pin banks of s5pv210 pin-controller */
static struct samsung_pin_bank s5pv210_pin_bank[] = {
EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpa0", 0x00),
- EXYNOS_PIN_BANK_EINTG(6, 0x020, "gpa1", 0x04),
+ EXYNOS_PIN_BANK_EINTG(4, 0x020, "gpa1", 0x04),
EXYNOS_PIN_BANK_EINTG(8, 0x040, "gpb", 0x08),
EXYNOS_PIN_BANK_EINTG(5, 0x060, "gpc0", 0x0c),
EXYNOS_PIN_BANK_EINTG(5, 0x080, "gpc1", 0x10),
EXYNOS_PIN_BANK_EINTG(4, 0x0a0, "gpd0", 0x14),
- EXYNOS_PIN_BANK_EINTG(4, 0x0c0, "gpd1", 0x18),
- EXYNOS_PIN_BANK_EINTG(5, 0x0e0, "gpe0", 0x1c),
- EXYNOS_PIN_BANK_EINTG(8, 0x100, "gpe1", 0x20),
- EXYNOS_PIN_BANK_EINTG(6, 0x120, "gpf0", 0x24),
+ EXYNOS_PIN_BANK_EINTG(6, 0x0c0, "gpd1", 0x18),
+ EXYNOS_PIN_BANK_EINTG(8, 0x0e0, "gpe0", 0x1c),
+ EXYNOS_PIN_BANK_EINTG(5, 0x100, "gpe1", 0x20),
+ EXYNOS_PIN_BANK_EINTG(8, 0x120, "gpf0", 0x24),
EXYNOS_PIN_BANK_EINTG(8, 0x140, "gpf1", 0x28),
EXYNOS_PIN_BANK_EINTG(8, 0x160, "gpf2", 0x2c),
- EXYNOS_PIN_BANK_EINTG(8, 0x180, "gpf3", 0x30),
+ EXYNOS_PIN_BANK_EINTG(6, 0x180, "gpf3", 0x30),
EXYNOS_PIN_BANK_EINTG(7, 0x1a0, "gpg0", 0x34),
EXYNOS_PIN_BANK_EINTG(7, 0x1c0, "gpg1", 0x38),
EXYNOS_PIN_BANK_EINTG(7, 0x1e0, "gpg2", 0x3c),
param = pinconf_to_config_param(configs[i]);
param_val = pinconf_to_config_argument(configs[i]);
+ if (param == PIN_CONFIG_BIAS_PULL_PIN_DEFAULT)
+ continue;
+
switch (param) {
- case PIN_CONFIG_BIAS_PULL_PIN_DEFAULT:
- return 0;
case PIN_CONFIG_BIAS_DISABLE:
case PIN_CONFIG_BIAS_PULL_UP:
case PIN_CONFIG_BIAS_PULL_DOWN:
*
* Copyright (c) 2012-2013, NVIDIA CORPORATION. All rights reserved.
*
- * A
rthur: Pritesh Raithatha <praithatha@nvidia.com>
+ * A
uthor: Pritesh Raithatha <praithatha@nvidia.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
};
module_platform_driver(tegra114_pinctrl_driver);
-MODULE_ALIAS("platform:tegra114-pinctrl");
MODULE_AUTHOR("Pritesh Raithatha <praithatha@nvidia.com>");
-MODULE_DESCRIPTION("NVIDIA Tegra114 pincontrol driver");
+MODULE_DESCRIPTION("NVIDIA Tegra114 pinctrl driver");
MODULE_LICENSE("GPL v2");
depends on BACKLIGHT_CLASS_DEVICE
depends on RFKILL || RFKILL = n
depends on HOTPLUG_PCI
+ depends on ACPI_VIDEO || ACPI_VIDEO = n
select INPUT_SPARSEKMAP
select LEDS_CLASS
select NEW_LEDS
*/
static int write_acpi_int(acpi_handle handle, const char *method, int val)
{
- struct acpi_object_list params;
- union acpi_object in_obj;
acpi_status status;
- params.count = 1;
- params.pointer = &in_obj;
- in_obj.type = ACPI_TYPE_INTEGER;
- in_obj.integer.value = val;
+ status = acpi_execute_simple_method(handle, (char *)method, val);
- status = acpi_evaluate_object(handle, (char *)method, ¶ms, NULL);
return (status == AE_OK ? 0 : -1);
}
{ .type = ACPI_TYPE_INTEGER }
};
struct acpi_object_list arg_list = { 4, ¶ms[0] };
- struct acpi_buffer output;
- union acpi_object out_obj;
+ unsigned long long value;
acpi_handle handle = NULL;
status = acpi_get_handle(fujitsu_hotkey->acpi_handle, "FUNC", &handle);
params[2].integer.value = arg1;
params[3].integer.value = arg2;
- output.length = sizeof(out_obj);
- output.pointer = &out_obj;
-
- status = acpi_evaluate_object(handle, NULL, &arg_list, &output);
+ status = acpi_evaluate_integer(handle, NULL, &arg_list, &value);
if (ACPI_FAILURE(status)) {
vdbg_printk(FUJLAPTOP_DBG_WARN,
"FUNC 0x%x (args 0x%x, 0x%x, 0x%x) call failed\n",
return -ENODEV;
}
- if (out_obj.type != ACPI_TYPE_INTEGER) {
- vdbg_printk(FUJLAPTOP_DBG_WARN,
- "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) did not "
- "return an integer\n",
- cmd, arg0, arg1, arg2);
- return -ENODEV;
- }
-
vdbg_printk(FUJLAPTOP_DBG_TRACE,
"FUNC 0x%x (args 0x%x, 0x%x, 0x%x) returned 0x%x\n",
- cmd, arg0, arg1, arg2, (int)out_obj.integer.value);
- return out_obj.integer.value;
+ cmd, arg0, arg1, arg2, (int)value);
+ return value;
}
#if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
static int set_lcd_level(int level)
{
acpi_status status = AE_OK;
- union acpi_object arg0 = { ACPI_TYPE_INTEGER };
- struct acpi_object_list arg_list = { 1, &arg0 };
acpi_handle handle = NULL;
vdbg_printk(FUJLAPTOP_DBG_TRACE, "set lcd level via SBLL [%d]\n",
return -ENODEV;
}
- arg0.integer.value = level;
- status = acpi_evaluate_object(handle, NULL, &arg_list, NULL);
+ status = acpi_execute_simple_method(handle, NULL, level);
if (ACPI_FAILURE(status))
return -ENODEV;
static int set_lcd_level_alt(int level)
{
acpi_status status = AE_OK;
- union acpi_object arg0 = { ACPI_TYPE_INTEGER };
- struct acpi_object_list arg_list = { 1, &arg0 };
acpi_handle handle = NULL;
vdbg_printk(FUJLAPTOP_DBG_TRACE, "set lcd level via SBL2 [%d]\n",
return -ENODEV;
}
- arg0.integer.value = level;
-
- status = acpi_evaluate_object(handle, NULL, &arg_list, NULL);
+ status = acpi_execute_simple_method(handle, NULL, level);
if (ACPI_FAILURE(status))
return -ENODEV;
static void dmi_check_cb_common(const struct dmi_system_id *id)
{
- acpi_handle handle;
pr_info("Identified laptop model '%s'\n", id->ident);
if (use_alt_lcd_levels == -1) {
- if (ACPI_SUCCESS(acpi_get_handle(NULL,
- "\\_SB.PCI0.LPCB.FJEX.SBL2", &handle)))
+ if (acpi_has_method(NULL,
+ "\\_SB.PCI0.LPCB.FJEX.SBL2"))
use_alt_lcd_levels = 1;
else
use_alt_lcd_levels = 0;
static int acpi_fujitsu_add(struct acpi_device *device)
{
- acpi_handle handle;
int result = 0;
int state = 0;
struct input_dev *input;
fujitsu->dev = device;
- if (ACPI_SUCCESS
- (acpi_get_handle(device->handle, METHOD_NAME__INI, &handle))) {
+ if (acpi_has_method(device->handle, METHOD_NAME__INI)) {
vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n");
if (ACPI_FAILURE
(acpi_evaluate_object
static int acpi_fujitsu_hotkey_add(struct acpi_device *device)
{
- acpi_handle handle;
int result = 0;
int state = 0;
struct input_dev *input;
fujitsu_hotkey->dev = device;
- if (ACPI_SUCCESS
- (acpi_get_handle(device->handle, METHOD_NAME__INI, &handle))) {
+ if (acpi_has_method(device->handle, METHOD_NAME__INI)) {
vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n");
if (ACPI_FAILURE
(acpi_evaluate_object
VPCCMD_W_BL_POWER = 0x33,
};
+struct ideapad_rfk_priv {
+ int dev;
+ struct ideapad_private *priv;
+};
+
struct ideapad_private {
+ struct acpi_device *adev;
struct rfkill *rfk[IDEAPAD_RFKILL_DEV_NUM];
+ struct ideapad_rfk_priv rfk_priv[IDEAPAD_RFKILL_DEV_NUM];
struct platform_device *platform_device;
struct input_dev *inputdev;
struct backlight_device *blightdev;
unsigned long cfg;
};
-static acpi_handle ideapad_handle;
-static struct ideapad_private *ideapad_priv;
static bool no_bt_rfkill;
module_param(no_bt_rfkill, bool, 0444);
MODULE_PARM_DESC(no_bt_rfkill, "No rfkill for bluetooth.");
*/
static int debugfs_status_show(struct seq_file *s, void *data)
{
+ struct ideapad_private *priv = s->private;
unsigned long value;
- if (!read_ec_data(ideapad_handle, VPCCMD_R_BL_MAX, &value))
+ if (!priv)
+ return -EINVAL;
+
+ if (!read_ec_data(priv->adev->handle, VPCCMD_R_BL_MAX, &value))
seq_printf(s, "Backlight max:\t%lu\n", value);
- if (!read_ec_data(ideapad_handle, VPCCMD_R_BL, &value))
+ if (!read_ec_data(priv->adev->handle, VPCCMD_R_BL, &value))
seq_printf(s, "Backlight now:\t%lu\n", value);
- if (!read_ec_data(ideapad_handle, VPCCMD_R_BL_POWER, &value))
+ if (!read_ec_data(priv->adev->handle, VPCCMD_R_BL_POWER, &value))
seq_printf(s, "BL power value:\t%s\n", value ? "On" : "Off");
seq_printf(s, "=====================\n");
- if (!read_ec_data(ideapad_handle, VPCCMD_R_RF, &value))
+ if (!read_ec_data(priv->adev->handle, VPCCMD_R_RF, &value))
seq_printf(s, "Radio status:\t%s(%lu)\n",
value ? "On" : "Off", value);
- if (!read_ec_data(ideapad_handle, VPCCMD_R_WIFI, &value))
+ if (!read_ec_data(priv->adev->handle, VPCCMD_R_WIFI, &value))
seq_printf(s, "Wifi status:\t%s(%lu)\n",
value ? "On" : "Off", value);
- if (!read_ec_data(ideapad_handle, VPCCMD_R_BT, &value))
+ if (!read_ec_data(priv->adev->handle, VPCCMD_R_BT, &value))
seq_printf(s, "BT status:\t%s(%lu)\n",
value ? "On" : "Off", value);
- if (!read_ec_data(ideapad_handle, VPCCMD_R_3G, &value))
+ if (!read_ec_data(priv->adev->handle, VPCCMD_R_3G, &value))
seq_printf(s, "3G status:\t%s(%lu)\n",
value ? "On" : "Off", value);
seq_printf(s, "=====================\n");
- if (!read_ec_data(ideapad_handle, VPCCMD_R_TOUCHPAD, &value))
+ if (!read_ec_data(priv->adev->handle, VPCCMD_R_TOUCHPAD, &value))
seq_printf(s, "Touchpad status:%s(%lu)\n",
value ? "On" : "Off", value);
- if (!read_ec_data(ideapad_handle, VPCCMD_R_CAMERA, &value))
+ if (!read_ec_data(priv->adev->handle, VPCCMD_R_CAMERA, &value))
seq_printf(s, "Camera status:\t%s(%lu)\n",
value ? "On" : "Off", value);
static int debugfs_status_open(struct inode *inode, struct file *file)
{
- return single_open(file, debugfs_status_show, NULL);
+ return single_open(file, debugfs_status_show, inode->i_private);
}
static const struct file_operations debugfs_status_fops = {
static int debugfs_cfg_show(struct seq_file *s, void *data)
{
- if (!ideapad_priv) {
+ struct ideapad_private *priv = s->private;
+
+ if (!priv) {
seq_printf(s, "cfg: N/A\n");
} else {
seq_printf(s, "cfg: 0x%.8lX\n\nCapability: ",
- ideapad_priv->cfg);
- if (test_bit(CFG_BT_BIT, &ideapad_priv->cfg))
+ priv->cfg);
+ if (test_bit(CFG_BT_BIT, &priv->cfg))
seq_printf(s, "Bluetooth ");
- if (test_bit(CFG_3G_BIT, &ideapad_priv->cfg))
+ if (test_bit(CFG_3G_BIT, &priv->cfg))
seq_printf(s, "3G ");
- if (test_bit(CFG_WIFI_BIT, &ideapad_priv->cfg))
+ if (test_bit(CFG_WIFI_BIT, &priv->cfg))
seq_printf(s, "Wireless ");
- if (test_bit(CFG_CAMERA_BIT, &ideapad_priv->cfg))
+ if (test_bit(CFG_CAMERA_BIT, &priv->cfg))
seq_printf(s, "Camera ");
seq_printf(s, "\nGraphic: ");
- switch ((ideapad_priv->cfg)&0x700) {
+ switch ((priv->cfg)&0x700) {
case 0x100:
seq_printf(s, "Intel");
break;
static int debugfs_cfg_open(struct inode *inode, struct file *file)
{
- return single_open(file, debugfs_cfg_show, NULL);
+ return single_open(file, debugfs_cfg_show, inode->i_private);
}
static const struct file_operations debugfs_cfg_fops = {
goto errout;
}
- node = debugfs_create_file("cfg", S_IRUGO, priv->debug, NULL,
+ node = debugfs_create_file("cfg", S_IRUGO, priv->debug, priv,
&debugfs_cfg_fops);
if (!node) {
pr_err("failed to create cfg in debugfs");
goto errout;
}
- node = debugfs_create_file("status", S_IRUGO, priv->debug, NULL,
+ node = debugfs_create_file("status", S_IRUGO, priv->debug, priv,
&debugfs_status_fops);
if (!node) {
pr_err("failed to create status in debugfs");
char *buf)
{
unsigned long result;
+ struct ideapad_private *priv = dev_get_drvdata(dev);
- if (read_ec_data(ideapad_handle, VPCCMD_R_CAMERA, &result))
+ if (read_ec_data(priv->adev->handle, VPCCMD_R_CAMERA, &result))
return sprintf(buf, "-1\n");
return sprintf(buf, "%lu\n", result);
}
const char *buf, size_t count)
{
int ret, state;
+ struct ideapad_private *priv = dev_get_drvdata(dev);
if (!count)
return 0;
if (sscanf(buf, "%i", &state) != 1)
return -EINVAL;
- ret = write_ec_cmd(ideapad_handle, VPCCMD_W_CAMERA, state);
+ ret = write_ec_cmd(priv->adev->handle, VPCCMD_W_CAMERA, state);
if (ret < 0)
return -EIO;
return count;
char *buf)
{
unsigned long result;
+ struct ideapad_private *priv = dev_get_drvdata(dev);
- if (read_ec_data(ideapad_handle, VPCCMD_R_FAN, &result))
+ if (read_ec_data(priv->adev->handle, VPCCMD_R_FAN, &result))
return sprintf(buf, "-1\n");
return sprintf(buf, "%lu\n", result);
}
const char *buf, size_t count)
{
int ret, state;
+ struct ideapad_private *priv = dev_get_drvdata(dev);
if (!count)
return 0;
return -EINVAL;
if (state < 0 || state > 4 || state == 3)
return -EINVAL;
- ret = write_ec_cmd(ideapad_handle, VPCCMD_W_FAN, state);
+ ret = write_ec_cmd(priv->adev->handle, VPCCMD_W_FAN, state);
if (ret < 0)
return -EIO;
return count;
supported = test_bit(CFG_CAMERA_BIT, &(priv->cfg));
else if (attr == &dev_attr_fan_mode.attr) {
unsigned long value;
- supported = !read_ec_data(ideapad_handle, VPCCMD_R_FAN, &value);
+ supported = !read_ec_data(priv->adev->handle, VPCCMD_R_FAN,
+ &value);
} else
supported = true;
static int ideapad_rfk_set(void *data, bool blocked)
{
- unsigned long opcode = (unsigned long)data;
+ struct ideapad_rfk_priv *priv = data;
- return write_ec_cmd(ideapad_handle, opcode, !blocked);
+ return write_ec_cmd(priv->priv->adev->handle, priv->dev, !blocked);
}
static struct rfkill_ops ideapad_rfk_ops = {
unsigned long hw_blocked;
int i;
- if (read_ec_data(ideapad_handle, VPCCMD_R_RF, &hw_blocked))
+ if (read_ec_data(priv->adev->handle, VPCCMD_R_RF, &hw_blocked))
return;
hw_blocked = !hw_blocked;
rfkill_set_hw_state(priv->rfk[i], hw_blocked);
}
-static int ideapad_register_rfkill(struct acpi_device *adevice, int dev)
+static int ideapad_register_rfkill(struct ideapad_private *priv, int dev)
{
- struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
int ret;
unsigned long sw_blocked;
if (no_bt_rfkill &&
(ideapad_rfk_data[dev].type == RFKILL_TYPE_BLUETOOTH)) {
/* Force to enable bluetooth when no_bt_rfkill=1 */
- write_ec_cmd(ideapad_handle,
+ write_ec_cmd(priv->adev->handle,
ideapad_rfk_data[dev].opcode, 1);
return 0;
}
-
- priv->rfk[dev] = rfkill_alloc(ideapad_rfk_data[dev].name, &adevice->dev,
- ideapad_rfk_data[dev].type, &ideapad_rfk_ops,
- (void *)(long)dev);
+ priv->rfk_priv[dev].dev = dev;
+ priv->rfk_priv[dev].priv = priv;
+
+ priv->rfk[dev] = rfkill_alloc(ideapad_rfk_data[dev].name,
+ &priv->platform_device->dev,
+ ideapad_rfk_data[dev].type,
+ &ideapad_rfk_ops,
+ &priv->rfk_priv[dev]);
if (!priv->rfk[dev])
return -ENOMEM;
- if (read_ec_data(ideapad_handle, ideapad_rfk_data[dev].opcode-1,
+ if (read_ec_data(priv->adev->handle, ideapad_rfk_data[dev].opcode-1,
&sw_blocked)) {
rfkill_init_sw_state(priv->rfk[dev], 0);
} else {
return 0;
}
-static void ideapad_unregister_rfkill(struct acpi_device *adevice, int dev)
+static void ideapad_unregister_rfkill(struct ideapad_private *priv, int dev)
{
- struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
-
if (!priv->rfk[dev])
return;
/*
* Platform device
*/
-static int ideapad_platform_init(struct ideapad_private *priv)
+static int ideapad_sysfs_init(struct ideapad_private *priv)
{
- int result;
-
- priv->platform_device = platform_device_alloc("ideapad", -1);
- if (!priv->platform_device)
- return -ENOMEM;
- platform_set_drvdata(priv->platform_device, priv);
-
- result = platform_device_add(priv->platform_device);
- if (result)
- goto fail_platform_device;
-
- result = sysfs_create_group(&priv->platform_device->dev.kobj,
+ return sysfs_create_group(&priv->platform_device->dev.kobj,
&ideapad_attribute_group);
- if (result)
- goto fail_sysfs;
- return 0;
-
-fail_sysfs:
- platform_device_del(priv->platform_device);
-fail_platform_device:
- platform_device_put(priv->platform_device);
- return result;
}
-static void ideapad_platform_exit(struct ideapad_private *priv)
+static void ideapad_sysfs_exit(struct ideapad_private *priv)
{
sysfs_remove_group(&priv->platform_device->dev.kobj,
&ideapad_attribute_group);
- platform_device_unregister(priv->platform_device);
}
/*
{
unsigned long long_pressed;
- if (read_ec_data(ideapad_handle, VPCCMD_R_NOVO, &long_pressed))
+ if (read_ec_data(priv->adev->handle, VPCCMD_R_NOVO, &long_pressed))
return;
if (long_pressed)
ideapad_input_report(priv, 17);
{
unsigned long bit, value;
- read_ec_data(ideapad_handle, VPCCMD_R_SPECIAL_BUTTONS, &value);
+ read_ec_data(priv->adev->handle, VPCCMD_R_SPECIAL_BUTTONS, &value);
for (bit = 0; bit < 16; bit++) {
if (test_bit(bit, &value)) {
*/
static int ideapad_backlight_get_brightness(struct backlight_device *blightdev)
{
+ struct ideapad_private *priv = bl_get_data(blightdev);
unsigned long now;
- if (read_ec_data(ideapad_handle, VPCCMD_R_BL, &now))
+ if (!priv)
+ return -EINVAL;
+
+ if (read_ec_data(priv->adev->handle, VPCCMD_R_BL, &now))
return -EIO;
return now;
}
static int ideapad_backlight_update_status(struct backlight_device *blightdev)
{
- if (write_ec_cmd(ideapad_handle, VPCCMD_W_BL,
+ struct ideapad_private *priv = bl_get_data(blightdev);
+
+ if (!priv)
+ return -EINVAL;
+
+ if (write_ec_cmd(priv->adev->handle, VPCCMD_W_BL,
blightdev->props.brightness))
return -EIO;
- if (write_ec_cmd(ideapad_handle, VPCCMD_W_BL_POWER,
+ if (write_ec_cmd(priv->adev->handle, VPCCMD_W_BL_POWER,
blightdev->props.power == FB_BLANK_POWERDOWN ? 0 : 1))
return -EIO;
struct backlight_properties props;
unsigned long max, now, power;
- if (read_ec_data(ideapad_handle, VPCCMD_R_BL_MAX, &max))
+ if (read_ec_data(priv->adev->handle, VPCCMD_R_BL_MAX, &max))
return -EIO;
- if (read_ec_data(ideapad_handle, VPCCMD_R_BL, &now))
+ if (read_ec_data(priv->adev->handle, VPCCMD_R_BL, &now))
return -EIO;
- if (read_ec_data(ideapad_handle, VPCCMD_R_BL_POWER, &power))
+ if (read_ec_data(priv->adev->handle, VPCCMD_R_BL_POWER, &power))
return -EIO;
memset(&props, 0, sizeof(struct backlight_properties));
if (!blightdev)
return;
- if (read_ec_data(ideapad_handle, VPCCMD_R_BL_POWER, &power))
+ if (read_ec_data(priv->adev->handle, VPCCMD_R_BL_POWER, &power))
return;
blightdev->props.power = power ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
}
/* if we control brightness via acpi video driver */
if (priv->blightdev == NULL) {
- read_ec_data(ideapad_handle, VPCCMD_R_BL, &now);
+ read_ec_data(priv->adev->handle, VPCCMD_R_BL, &now);
return;
}
/*
* module init/exit
*/
-static const struct acpi_device_id ideapad_device_ids[] = {
- { "VPC2004", 0},
- { "", 0},
-};
-MODULE_DEVICE_TABLE(acpi, ideapad_device_ids);
-
-static void ideapad_sync_touchpad_state(struct acpi_device *adevice)
+static void ideapad_sync_touchpad_state(struct ideapad_private *priv)
{
- struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
unsigned long value;
/* Without reading from EC touchpad LED doesn't switch state */
- if (!read_ec_data(adevice->handle, VPCCMD_R_TOUCHPAD, &value)) {
+ if (!read_ec_data(priv->adev->handle, VPCCMD_R_TOUCHPAD, &value)) {
/* Some IdeaPads don't really turn off touchpad - they only
* switch the LED state. We (de)activate KBC AUX port to turn
* touchpad off and on. We send KEY_TOUCHPAD_OFF and
}
}
-static int ideapad_acpi_add(struct acpi_device *adevice)
+static void ideapad_acpi_notify(acpi_handle handle, u32 event, void *data)
+{
+ struct ideapad_private *priv = data;
+ unsigned long vpc1, vpc2, vpc_bit;
+
+ if (read_ec_data(handle, VPCCMD_R_VPC1, &vpc1))
+ return;
+ if (read_ec_data(handle, VPCCMD_R_VPC2, &vpc2))
+ return;
+
+ vpc1 = (vpc2 << 8) | vpc1;
+ for (vpc_bit = 0; vpc_bit < 16; vpc_bit++) {
+ if (test_bit(vpc_bit, &vpc1)) {
+ switch (vpc_bit) {
+ case 9:
+ ideapad_sync_rfk_state(priv);
+ break;
+ case 13:
+ case 11:
+ case 7:
+ case 6:
+ ideapad_input_report(priv, vpc_bit);
+ break;
+ case 5:
+ ideapad_sync_touchpad_state(priv);
+ break;
+ case 4:
+ ideapad_backlight_notify_brightness(priv);
+ break;
+ case 3:
+ ideapad_input_novokey(priv);
+ break;
+ case 2:
+ ideapad_backlight_notify_power(priv);
+ break;
+ case 0:
+ ideapad_check_special_buttons(priv);
+ break;
+ default:
+ pr_info("Unknown event: %lu\n", vpc_bit);
+ }
+ }
+ }
+}
+
+static int ideapad_acpi_add(struct platform_device *pdev)
{
int ret, i;
int cfg;
struct ideapad_private *priv;
+ struct acpi_device *adev;
+
+ ret = acpi_bus_get_device(ACPI_HANDLE(&pdev->dev), &adev);
+ if (ret)
+ return -ENODEV;
- if (read_method_int(adevice->handle, "_CFG", &cfg))
+ if (read_method_int(adev->handle, "_CFG", &cfg))
return -ENODEV;
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
- dev_set_drvdata(&adevice->dev, priv);
- ideapad_priv = priv;
- ideapad_handle = adevice->handle;
+
+ dev_set_drvdata(&pdev->dev, priv);
priv->cfg = cfg;
+ priv->adev = adev;
+ priv->platform_device = pdev;
- ret = ideapad_platform_init(priv);
+ ret = ideapad_sysfs_init(priv);
if (ret)
- goto platform_failed;
+ goto sysfs_failed;
ret = ideapad_debugfs_init(priv);
if (ret)
for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++) {
if (test_bit(ideapad_rfk_data[i].cfgbit, &priv->cfg))
- ideapad_register_rfkill(adevice, i);
+ ideapad_register_rfkill(priv, i);
else
priv->rfk[i] = NULL;
}
ideapad_sync_rfk_state(priv);
- ideapad_sync_touchpad_state(adevice);
+ ideapad_sync_touchpad_state(priv);
if (!acpi_video_backlight_support()) {
ret = ideapad_backlight_init(priv);
if (ret && ret != -ENODEV)
goto backlight_failed;
}
+ ret = acpi_install_notify_handler(adev->handle,
+ ACPI_DEVICE_NOTIFY, ideapad_acpi_notify, priv);
+ if (ret)
+ goto notification_failed;
return 0;
-
+notification_failed:
+ ideapad_backlight_exit(priv);
backlight_failed:
for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++)
- ideapad_unregister_rfkill(adevice, i);
+ ideapad_unregister_rfkill(priv, i);
ideapad_input_exit(priv);
input_failed:
ideapad_debugfs_exit(priv);
debugfs_failed:
- ideapad_platform_exit(priv);
-platform_failed:
+ ideapad_sysfs_exit(priv);
+sysfs_failed:
kfree(priv);
return ret;
}
-static int ideapad_acpi_remove(struct acpi_device *adevice)
+static int ideapad_acpi_remove(struct platform_device *pdev)
{
- struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
+ struct ideapad_private *priv = dev_get_drvdata(&pdev->dev);
int i;
+ acpi_remove_notify_handler(priv->adev->handle,
+ ACPI_DEVICE_NOTIFY, ideapad_acpi_notify);
ideapad_backlight_exit(priv);
for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++)
- ideapad_unregister_rfkill(adevice, i);
+ ideapad_unregister_rfkill(priv, i);
ideapad_input_exit(priv);
ideapad_debugfs_exit(priv);
- ideapad_platform_exit(priv);
- dev_set_drvdata(&adevice->dev, NULL);
+ ideapad_sysfs_exit(priv);
+ dev_set_drvdata(&pdev->dev, NULL);
kfree(priv);
return 0;
}
-static void ideapad_acpi_notify(struct acpi_device *adevice, u32 event)
+#ifdef CONFIG_PM_SLEEP
+static int ideapad_acpi_resume(struct device *device)
{
- struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
- acpi_handle handle = adevice->handle;
- unsigned long vpc1, vpc2, vpc_bit;
-
- if (read_ec_data(handle, VPCCMD_R_VPC1, &vpc1))
- return;
- if (read_ec_data(handle, VPCCMD_R_VPC2, &vpc2))
- return;
+ struct ideapad_private *priv;
- vpc1 = (vpc2 << 8) | vpc1;
- for (vpc_bit = 0; vpc_bit < 16; vpc_bit++) {
- if (test_bit(vpc_bit, &vpc1)) {
- switch (vpc_bit) {
- case 9:
- ideapad_sync_rfk_state(priv);
- break;
- case 13:
- case 11:
- case 7:
- case 6:
- ideapad_input_report(priv, vpc_bit);
- break;
- case 5:
- ideapad_sync_touchpad_state(adevice);
- break;
- case 4:
- ideapad_backlight_notify_brightness(priv);
- break;
- case 3:
- ideapad_input_novokey(priv);
- break;
- case 2:
- ideapad_backlight_notify_power(priv);
- break;
- case 0:
- ideapad_check_special_buttons(priv);
- break;
- default:
- pr_info("Unknown event: %lu\n", vpc_bit);
- }
- }
- }
-}
+ if (!device)
+ return -EINVAL;
+ priv = dev_get_drvdata(device);
-static int ideapad_acpi_resume(struct device *device)
-{
- ideapad_sync_rfk_state(ideapad_priv);
- ideapad_sync_touchpad_state(to_acpi_device(device));
+ ideapad_sync_rfk_state(priv);
+ ideapad_sync_touchpad_state(priv);
return 0;
}
-
+#endif
static SIMPLE_DEV_PM_OPS(ideapad_pm, NULL, ideapad_acpi_resume);
-static struct acpi_driver ideapad_acpi_driver = {
- .name = "ideapad_acpi",
- .class = "IdeaPad",
- .ids = ideapad_device_ids,
- .ops.add = ideapad_acpi_add,
- .ops.remove = ideapad_acpi_remove,
- .ops.notify = ideapad_acpi_notify,
- .drv.pm = &ideapad_pm,
- .owner = THIS_MODULE,
+static const struct acpi_device_id ideapad_device_ids[] = {
+ { "VPC2004", 0},
+ { "", 0},
};
-module_acpi_driver(ideapad_acpi_driver);
+MODULE_DEVICE_TABLE(acpi, ideapad_device_ids);
+
+static struct platform_driver ideapad_acpi_driver = {
+ .probe = ideapad_acpi_add,
+ .remove = ideapad_acpi_remove,
+ .driver = {
+ .name = "ideapad_acpi",
+ .owner = THIS_MODULE,
+ .pm = &ideapad_pm,
+ .acpi_match_table = ACPI_PTR(ideapad_device_ids),
+ },
+};
+
+module_platform_driver(ideapad_acpi_driver);
MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");
MODULE_DESCRIPTION("IdeaPad ACPI Extras");
char *buf)
{
struct acpi_device *acpi;
- struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
- union acpi_object *result;
+ unsigned long long value;
acpi_status status;
acpi = to_acpi_device(dev);
- status = acpi_evaluate_object(acpi->handle, "GFFS", NULL, &output);
+ status = acpi_evaluate_integer(acpi->handle, "GFFS", NULL, &value);
if (!ACPI_SUCCESS(status))
return -EINVAL;
- result = output.pointer;
-
- if (result->type != ACPI_TYPE_INTEGER) {
- kfree(result);
- return -EINVAL;
- }
-
- return sprintf(buf, "%lld\n", result->integer.value);
+ return sprintf(buf, "%lld\n", value);
}
static ssize_t irst_store_wakeup_events(struct device *dev,
const char *buf, size_t count)
{
struct acpi_device *acpi;
- struct acpi_object_list input;
- union acpi_object param;
acpi_status status;
unsigned long value;
int error;
if (error)
return error;
- param.type = ACPI_TYPE_INTEGER;
- param.integer.value = value;
-
- input.count = 1;
- input.pointer = ¶m;
-
- status = acpi_evaluate_object(acpi->handle, "SFFS", &input, NULL);
+ status = acpi_execute_simple_method(acpi->handle, "SFFS", value);
if (!ACPI_SUCCESS(status))
return -EINVAL;
struct device_attribute *attr, char *buf)
{
struct acpi_device *acpi;
- struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
- union acpi_object *result;
+ unsigned long long value;
acpi_status status;
acpi = to_acpi_device(dev);
- status = acpi_evaluate_object(acpi->handle, "GFTV", NULL, &output);
+ status = acpi_evaluate_integer(acpi->handle, "GFTV", NULL, &value);
if (!ACPI_SUCCESS(status))
return -EINVAL;
- result = output.pointer;
-
- if (result->type != ACPI_TYPE_INTEGER) {
- kfree(result);
- return -EINVAL;
- }
-
- return sprintf(buf, "%lld\n", result->integer.value);
+ return sprintf(buf, "%lld\n", value);
}
static ssize_t irst_store_wakeup_time(struct device *dev,
const char *buf, size_t count)
{
struct acpi_device *acpi;
- struct acpi_object_list input;
- union acpi_object param;
acpi_status status;
unsigned long value;
int error;
if (error)
return error;
- param.type = ACPI_TYPE_INTEGER;
- param.integer.value = value;
-
- input.count = 1;
- input.pointer = ¶m;
-
- status = acpi_evaluate_object(acpi->handle, "SFTV", &input, NULL);
+ status = acpi_execute_simple_method(acpi->handle, "SFTV", value);
if (!ACPI_SUCCESS(status))
return -EINVAL;
static int smartconnect_acpi_init(struct acpi_device *acpi)
{
- struct acpi_object_list input;
- struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
- union acpi_object *result;
- union acpi_object param;
+ unsigned long long value;
acpi_status status;
- status = acpi_evaluate_object(acpi->handle, "GAOS", NULL, &output);
+ status = acpi_evaluate_integer(acpi->handle, "GAOS", NULL, &value);
if (!ACPI_SUCCESS(status))
return -EINVAL;
- result = output.pointer;
-
- if (result->type != ACPI_TYPE_INTEGER) {
- kfree(result);
- return -EINVAL;
- }
-
- if (result->integer.value & 0x1) {
- param.type = ACPI_TYPE_INTEGER;
- param.integer.value = 0;
-
- input.count = 1;
- input.pointer = ¶m;
-
+ if (value & 0x1) {
dev_info(&acpi->dev, "Disabling Intel Smart Connect\n");
- status = acpi_evaluate_object(acpi->handle, "SAOS", &input,
- NULL);
+ status = acpi_execute_simple_method(acpi->handle, "SAOS", 0);
}
- kfree(result);
-
return 0;
}
static int intel_menlow_memory_add(struct acpi_device *device)
{
int result = -ENODEV;
- acpi_status status = AE_OK;
- acpi_handle dummy;
struct thermal_cooling_device *cdev;
if (!device)
return -EINVAL;
- status = acpi_get_handle(device->handle, MEMORY_GET_BANDWIDTH, &dummy);
- if (ACPI_FAILURE(status))
+ if (!acpi_has_method(device->handle, MEMORY_GET_BANDWIDTH))
goto end;
- status = acpi_get_handle(device->handle, MEMORY_SET_BANDWIDTH, &dummy);
- if (ACPI_FAILURE(status))
+ if (!acpi_has_method(device->handle, MEMORY_SET_BANDWIDTH))
goto end;
cdev = thermal_cooling_device_register("Memory controller", device,
"default is -1 (automatic)");
#endif
-static int kbd_backlight = 1;
+static int kbd_backlight = -1;
module_param(kbd_backlight, int, 0444);
MODULE_PARM_DESC(kbd_backlight,
"set this to 0 to disable keyboard backlight, "
- "1 to enable it (default: 0)");
+ "1 to enable it (default: no change from current value)");
-static int kbd_backlight_timeout; /* = 0 */
+static int kbd_backlight_timeout = -1;
module_param(kbd_backlight_timeout, int, 0444);
MODULE_PARM_DESC(kbd_backlight_timeout,
- "set this to 0 to set the default 10 seconds timeout, "
- "1 for 30 seconds, 2 for 60 seconds and 3 to disable timeout "
- "(default: 0)");
+ "meaningful values vary from 0 to 3 and their meaning depends "
+ "on the model (default: no change from current value)");
#ifdef CONFIG_PM_SLEEP
static void sony_nc_kbd_backlight_resume(void);
static int sony_nc_resume(struct device *dev)
{
struct sony_nc_value *item;
- acpi_handle handle;
for (item = sony_nc_values; item->name; item++) {
int ret;
}
}
- if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
- &handle))) {
+ if (acpi_has_method(sony_nc_acpi_handle, "ECON")) {
int arg = 1;
if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
dprintk("ECON Method failed\n");
}
- if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
- &handle)))
+ if (acpi_has_method(sony_nc_acpi_handle, "SN00"))
sony_nc_function_resume();
return 0;
if (!kbdbl_ctl)
return -ENOMEM;
+ kbdbl_ctl->mode = kbd_backlight;
+ kbdbl_ctl->timeout = kbd_backlight_timeout;
kbdbl_ctl->handle = handle;
if (handle == 0x0137)
kbdbl_ctl->base = 0x0C00;
if (ret)
goto outmode;
- __sony_nc_kbd_backlight_mode_set(kbd_backlight);
- __sony_nc_kbd_backlight_timeout_set(kbd_backlight_timeout);
+ __sony_nc_kbd_backlight_mode_set(kbdbl_ctl->mode);
+ __sony_nc_kbd_backlight_timeout_set(kbdbl_ctl->timeout);
return 0;
static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd)
{
if (kbdbl_ctl) {
- int result;
-
device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
device_remove_file(&pd->dev, &kbdbl_ctl->timeout_attr);
-
- /* restore the default hw behaviour */
- sony_call_snc_handle(kbdbl_ctl->handle,
- kbdbl_ctl->base | 0x10000, &result);
- sony_call_snc_handle(kbdbl_ctl->handle,
- kbdbl_ctl->base + 0x200, &result);
-
kfree(kbdbl_ctl);
kbdbl_ctl = NULL;
}
static void sony_nc_backlight_setup(void)
{
- acpi_handle unused;
int max_brightness = 0;
const struct backlight_ops *ops = NULL;
struct backlight_properties props;
sony_nc_backlight_ng_read_limits(0x14c, &sony_bl_props);
max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
- } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
- &unused))) {
+ } else if (acpi_has_method(sony_nc_acpi_handle, "GBRT")) {
ops = &sony_backlight_ops;
max_brightness = SONY_MAX_BRIGHTNESS - 1;
{
acpi_status status;
int result = 0;
- acpi_handle handle;
struct sony_nc_value *item;
pr_info("%s v%s\n", SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
goto outplatform;
}
- if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
- &handle))) {
+ if (acpi_has_method(sony_nc_acpi_handle, "ECON")) {
int arg = 1;
if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
dprintk("ECON Method failed\n");
}
- if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
- &handle))) {
+ if (acpi_has_method(sony_nc_acpi_handle, "SN00")) {
dprintk("Doing SNC setup\n");
/* retrieve the available handles */
result = sony_nc_handles_setup(sony_pf_device);
/* find the available acpiget as described in the DSDT */
for (; item->acpiget && *item->acpiget; ++item->acpiget) {
- if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
- *item->acpiget,
- &handle))) {
+ if (acpi_has_method(sony_nc_acpi_handle,
+ *item->acpiget)) {
dprintk("Found %s getter: %s\n",
item->name, *item->acpiget);
item->devattr.attr.mode |= S_IRUGO;
/* find the available acpiset as described in the DSDT */
for (; item->acpiset && *item->acpiset; ++item->acpiset) {
- if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
- *item->acpiset,
- &handle))) {
+ if (acpi_has_method(sony_nc_acpi_handle,
+ *item->acpiset)) {
dprintk("Found %s setter: %s\n",
item->name, *item->acpiset);
item->devattr.attr.mode |= S_IWUSR;
static acpi_status __init tpacpi_acpi_handle_locate_callback(acpi_handle handle,
u32 level, void *context, void **return_value)
{
+ struct acpi_device *dev;
+ if (!strcmp(context, "video")) {
+ if (acpi_bus_get_device(handle, &dev))
+ return AE_OK;
+ if (strcmp(ACPI_VIDEO_HID, acpi_device_hid(dev)))
+ return AE_OK;
+ }
+
*(acpi_handle *)return_value = handle;
return AE_CTRL_TERMINATE;
acpi_status status;
acpi_handle device_found;
- BUG_ON(!name || !hid || !handle);
+ BUG_ON(!name || !handle);
vdbg_printk(TPACPI_DBG_INIT,
"trying to locate ACPI handle for %s, using HID %s\n",
- name, hid);
+ name, hid ? hid : "NULL");
memset(&device_found, 0, sizeof(device_found));
status = acpi_get_devices(hid, tpacpi_acpi_handle_locate_callback,
{
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
union acpi_object *obj;
+ struct acpi_device *device, *child;
int rc;
- if (ACPI_SUCCESS(acpi_evaluate_object(handle, "_BCL", NULL, &buffer))) {
+ if (acpi_bus_get_device(handle, &device))
+ return 0;
+
+ rc = 0;
+ list_for_each_entry(child, &device->children, node) {
+ acpi_status status = acpi_evaluate_object(child->handle, "_BCL",
+ NULL, &buffer);
+ if (ACPI_FAILURE(status))
+ continue;
+
obj = (union acpi_object *)buffer.pointer;
if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) {
pr_err("Unknown _BCL data, please report this to %s\n",
- TPACPI_MAIL);
+ TPACPI_MAIL);
rc = 0;
} else {
rc = obj->package.count;
}
- } else {
- return 0;
+ break;
}
kfree(buffer.pointer);
acpi_handle video_device;
int bcl_levels = 0;
- tpacpi_acpi_handle_locate("video", ACPI_VIDEO_HID, &video_device);
+ tpacpi_acpi_handle_locate("video", NULL, &video_device);
if (video_device)
bcl_levels = tpacpi_query_bcl_levels(video_device);
static int acpi_topstar_fncx_switch(struct acpi_device *device, bool state)
{
acpi_status status;
- union acpi_object fncx_params[1] = {
- { .type = ACPI_TYPE_INTEGER }
- };
- struct acpi_object_list fncx_arg_list = { 1, &fncx_params[0] };
- fncx_params[0].integer.value = state ? 0x86 : 0x87;
- status = acpi_evaluate_object(device->handle, "FNCX", &fncx_arg_list, NULL);
+ status = acpi_execute_simple_method(device->handle, "FNCX",
+ state ? 0x86 : 0x87);
if (ACPI_FAILURE(status)) {
pr_err("Unable to switch FNCX notifications\n");
return -ENODEV;
static int write_acpi_int(const char *methodName, int val)
{
- struct acpi_object_list params;
- union acpi_object in_objs[1];
acpi_status status;
- params.count = ARRAY_SIZE(in_objs);
- params.pointer = in_objs;
- in_objs[0].type = ACPI_TYPE_INTEGER;
- in_objs[0].integer.value = val;
-
- status = acpi_evaluate_object(NULL, (char *)methodName, ¶ms, NULL);
+ status = acpi_execute_simple_method(NULL, (char *)methodName, val);
return (status == AE_OK) ? 0 : -EIO;
}
*/
static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
{
- struct acpi_buffer buf;
- union acpi_object out_obj;
+ unsigned long long value;
acpi_status status;
- buf.pointer = &out_obj;
- buf.length = sizeof(out_obj);
-
- status = acpi_evaluate_object(dev->acpi_dev->handle, "INFO",
- NULL, &buf);
- if (ACPI_FAILURE(status) || out_obj.type != ACPI_TYPE_INTEGER) {
+ status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
+ NULL, &value);
+ if (ACPI_FAILURE(status)) {
pr_err("ACPI INFO method execution failed\n");
return -EIO;
}
- return out_obj.integer.value;
+ return value;
}
static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
{
acpi_status status;
- acpi_handle ec_handle, handle;
+ acpi_handle ec_handle;
int error;
u32 hci_result;
*/
status = AE_ERROR;
ec_handle = ec_get_handle();
- if (ec_handle)
- status = acpi_get_handle(ec_handle, "NTFY", &handle);
-
- if (ACPI_SUCCESS(status)) {
+ if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
error = i8042_install_filter(toshiba_acpi_i8042_filter);
* Determine hotkey query interface. Prefer using the INFO
* method when it is available.
*/
- status = acpi_get_handle(dev->acpi_dev->handle, "INFO", &handle);
- if (ACPI_SUCCESS(status)) {
+ if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
dev->info_supported = 1;
- } else {
+ else {
hci_write1(dev, HCI_SYSTEM_EVENT, 1, &hci_result);
if (hci_result == HCI_SUCCESS)
dev->system_event_supported = 1;
static const char *find_hci_method(acpi_handle handle)
{
- acpi_status status;
- acpi_handle hci_handle;
-
- status = acpi_get_handle(handle, "GHCI", &hci_handle);
- if (ACPI_SUCCESS(status))
+ if (acpi_has_method(handle, "GHCI"))
return "GHCI";
- status = acpi_get_handle(handle, "SPFC", &hci_handle);
- if (ACPI_SUCCESS(status))
+ if (acpi_has_method(handle, "SPFC"))
return "SPFC";
return NULL;
{
struct guid_block *block = NULL;
char method[5];
- struct acpi_object_list input;
- union acpi_object params[1];
acpi_status status;
acpi_handle handle;
if (!block)
return AE_NOT_EXIST;
- input.count = 1;
- input.pointer = params;
- params[0].type = ACPI_TYPE_INTEGER;
- params[0].integer.value = enable;
snprintf(method, 5, "WE%02X", block->notify_id);
- status = acpi_evaluate_object(handle, method, &input, NULL);
+ status = acpi_execute_simple_method(handle, method, enable);
if (status != AE_OK && status != AE_NOT_FOUND)
return status;
{
struct guid_block *block = NULL;
struct wmi_block *wblock = NULL;
- acpi_handle handle, wc_handle;
+ acpi_handle handle;
acpi_status status, wc_status = AE_ERROR;
- struct acpi_object_list input, wc_input;
- union acpi_object wc_params[1], wq_params[1];
+ struct acpi_object_list input;
+ union acpi_object wq_params[1];
char method[5];
char wc_method[5] = "WC";
* enable collection.
*/
if (block->flags & ACPI_WMI_EXPENSIVE) {
- wc_input.count = 1;
- wc_input.pointer = wc_params;
- wc_params[0].type = ACPI_TYPE_INTEGER;
- wc_params[0].integer.value = 1;
-
strncat(wc_method, block->object_id, 2);
/*
* expensive, but have no corresponding WCxx method. So we
* should not fail if this happens.
*/
- wc_status = acpi_get_handle(handle, wc_method, &wc_handle);
- if (ACPI_SUCCESS(wc_status))
- wc_status = acpi_evaluate_object(handle, wc_method,
- &wc_input, NULL);
+ if (acpi_has_method(handle, wc_method))
+ wc_status = acpi_execute_simple_method(handle,
+ wc_method, 1);
}
strcpy(method, "WQ");
* the WQxx method failed - we should disable collection anyway.
*/
if ((block->flags & ACPI_WMI_EXPENSIVE) && ACPI_SUCCESS(wc_status)) {
- wc_params[0].integer.value = 0;
- status = acpi_evaluate_object(handle,
- wc_method, &wc_input, NULL);
+ status = acpi_execute_simple_method(handle, wc_method, 0);
}
return status;
static int __init pnpacpi_add_device(struct acpi_device *device)
{
- acpi_handle temp = NULL;
- acpi_status status;
struct pnp_dev *dev;
char *pnpid;
struct acpi_hardware_id *id;
* If a PnPacpi device is not present , the device
* driver should not be loaded.
*/
- status = acpi_get_handle(device->handle, "_CRS", &temp);
- if (ACPI_FAILURE(status))
+ if (!acpi_has_method(device->handle, "_CRS"))
return 0;
pnpid = pnpacpi_get_id(device);
dev->data = device;
/* .enabled means the device can decode the resources */
dev->active = device->status.enabled;
- status = acpi_get_handle(device->handle, "_SRS", &temp);
- if (ACPI_SUCCESS(status))
+ if (acpi_has_method(device->handle, "_SRS"))
dev->capabilities |= PNP_CONFIGURABLE;
dev->capabilities |= PNP_READ;
if (device->flags.dynamic_status && (dev->capabilities & PNP_CONFIGURABLE))
dev->capabilities |= PNP_WRITE;
if (device->flags.removable)
dev->capabilities |= PNP_REMOVABLE;
- status = acpi_get_handle(device->handle, "_DIS", &temp);
- if (ACPI_SUCCESS(status))
+ if (acpi_has_method(device->handle, "_DIS"))
dev->capabilities |= PNP_DISABLE;
if (strlen(acpi_device_name(device)))
--- /dev/null
+#
+# Generic power capping sysfs interface configuration
+#
+
+menuconfig POWERCAP
+ bool "Generic powercap sysfs driver"
+ help
+ The power capping sysfs interface allows kernel subsystems to expose power
+ capping settings to user space in a consistent way. Usually, it consists
+ of multiple control types that determine which settings may be exposed and
+ power zones representing parts of the system that can be subject to power
+ capping.
+
+ If you want this code to be compiled in, say Y here.
+
+if POWERCAP
+# Client driver configurations go here.
+config INTEL_RAPL
+ tristate "Intel RAPL Support"
+ depends on X86
+ default n
+ ---help---
+ This enables support for the Intel Running Average Power Limit (RAPL)
+ technology which allows power limits to be enforced and monitored on
+ modern Intel processors (Sandy Bridge and later).
+
+ In RAPL, the platform level settings are divided into domains for
+ fine grained control. These domains include processor package, DRAM
+ controller, CPU core (Power Plance 0), graphics uncore (Power Plane
+ 1), etc.
+
+endif
--- /dev/null
+obj-$(CONFIG_POWERCAP) += powercap_sys.o
+obj-$(CONFIG_INTEL_RAPL) += intel_rapl.o
--- /dev/null
+/*
+ * Intel Running Average Power Limit (RAPL) Driver
+ * Copyright (c) 2013, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.
+ *
+ */
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/list.h>
+#include <linux/types.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+#include <linux/log2.h>
+#include <linux/bitmap.h>
+#include <linux/delay.h>
+#include <linux/sysfs.h>
+#include <linux/cpu.h>
+#include <linux/powercap.h>
+
+#include <asm/processor.h>
+#include <asm/cpu_device_id.h>
+
+/* bitmasks for RAPL MSRs, used by primitive access functions */
+#define ENERGY_STATUS_MASK 0xffffffff
+
+#define POWER_LIMIT1_MASK 0x7FFF
+#define POWER_LIMIT1_ENABLE BIT(15)
+#define POWER_LIMIT1_CLAMP BIT(16)
+
+#define POWER_LIMIT2_MASK (0x7FFFULL<<32)
+#define POWER_LIMIT2_ENABLE BIT_ULL(47)
+#define POWER_LIMIT2_CLAMP BIT_ULL(48)
+#define POWER_PACKAGE_LOCK BIT_ULL(63)
+#define POWER_PP_LOCK BIT(31)
+
+#define TIME_WINDOW1_MASK (0x7FULL<<17)
+#define TIME_WINDOW2_MASK (0x7FULL<<49)
+
+#define POWER_UNIT_OFFSET 0
+#define POWER_UNIT_MASK 0x0F
+
+#define ENERGY_UNIT_OFFSET 0x08
+#define ENERGY_UNIT_MASK 0x1F00
+
+#define TIME_UNIT_OFFSET 0x10
+#define TIME_UNIT_MASK 0xF0000
+
+#define POWER_INFO_MAX_MASK (0x7fffULL<<32)
+#define POWER_INFO_MIN_MASK (0x7fffULL<<16)
+#define POWER_INFO_MAX_TIME_WIN_MASK (0x3fULL<<48)
+#define POWER_INFO_THERMAL_SPEC_MASK 0x7fff
+
+#define PERF_STATUS_THROTTLE_TIME_MASK 0xffffffff
+#define PP_POLICY_MASK 0x1F
+
+/* Non HW constants */
+#define RAPL_PRIMITIVE_DERIVED BIT(1) /* not from raw data */
+#define RAPL_PRIMITIVE_DUMMY BIT(2)
+
+/* scale RAPL units to avoid floating point math inside kernel */
+#define POWER_UNIT_SCALE (1000000)
+#define ENERGY_UNIT_SCALE (1000000)
+#define TIME_UNIT_SCALE (1000000)
+
+#define TIME_WINDOW_MAX_MSEC 40000
+#define TIME_WINDOW_MIN_MSEC 250
+
+enum unit_type {
+ ARBITRARY_UNIT, /* no translation */
+ POWER_UNIT,
+ ENERGY_UNIT,
+ TIME_UNIT,
+};
+
+enum rapl_domain_type {
+ RAPL_DOMAIN_PACKAGE, /* entire package/socket */
+ RAPL_DOMAIN_PP0, /* core power plane */
+ RAPL_DOMAIN_PP1, /* graphics uncore */
+ RAPL_DOMAIN_DRAM,/* DRAM control_type */
+ RAPL_DOMAIN_MAX,
+};
+
+enum rapl_domain_msr_id {
+ RAPL_DOMAIN_MSR_LIMIT,
+ RAPL_DOMAIN_MSR_STATUS,
+ RAPL_DOMAIN_MSR_PERF,
+ RAPL_DOMAIN_MSR_POLICY,
+ RAPL_DOMAIN_MSR_INFO,
+ RAPL_DOMAIN_MSR_MAX,
+};
+
+/* per domain data, some are optional */
+enum rapl_primitives {
+ ENERGY_COUNTER,
+ POWER_LIMIT1,
+ POWER_LIMIT2,
+ FW_LOCK,
+
+ PL1_ENABLE, /* power limit 1, aka long term */
+ PL1_CLAMP, /* allow frequency to go below OS request */
+ PL2_ENABLE, /* power limit 2, aka short term, instantaneous */
+ PL2_CLAMP,
+
+ TIME_WINDOW1, /* long term */
+ TIME_WINDOW2, /* short term */
+ THERMAL_SPEC_POWER,
+ MAX_POWER,
+
+ MIN_POWER,
+ MAX_TIME_WINDOW,
+ THROTTLED_TIME,
+ PRIORITY_LEVEL,
+
+ /* below are not raw primitive data */
+ AVERAGE_POWER,
+ NR_RAPL_PRIMITIVES,
+};
+
+#define NR_RAW_PRIMITIVES (NR_RAPL_PRIMITIVES - 2)
+
+/* Can be expanded to include events, etc.*/
+struct rapl_domain_data {
+ u64 primitives[NR_RAPL_PRIMITIVES];
+ unsigned long timestamp;
+};
+
+
+#define DOMAIN_STATE_INACTIVE BIT(0)
+#define DOMAIN_STATE_POWER_LIMIT_SET BIT(1)
+#define DOMAIN_STATE_BIOS_LOCKED BIT(2)
+
+#define NR_POWER_LIMITS (2)
+struct rapl_power_limit {
+ struct powercap_zone_constraint *constraint;
+ int prim_id; /* primitive ID used to enable */
+ struct rapl_domain *domain;
+ const char *name;
+};
+
+static const char pl1_name[] = "long_term";
+static const char pl2_name[] = "short_term";
+
+struct rapl_domain {
+ const char *name;
+ enum rapl_domain_type id;
+ int msrs[RAPL_DOMAIN_MSR_MAX];
+ struct powercap_zone power_zone;
+ struct rapl_domain_data rdd;
+ struct rapl_power_limit rpl[NR_POWER_LIMITS];
+ u64 attr_map; /* track capabilities */
+ unsigned int state;
+ int package_id;
+};
+#define power_zone_to_rapl_domain(_zone) \
+ container_of(_zone, struct rapl_domain, power_zone)
+
+
+/* Each physical package contains multiple domains, these are the common
+ * data across RAPL domains within a package.
+ */
+struct rapl_package {
+ unsigned int id; /* physical package/socket id */
+ unsigned int nr_domains;
+ unsigned long domain_map; /* bit map of active domains */
+ unsigned int power_unit_divisor;
+ unsigned int energy_unit_divisor;
+ unsigned int time_unit_divisor;
+ struct rapl_domain *domains; /* array of domains, sized at runtime */
+ struct powercap_zone *power_zone; /* keep track of parent zone */
+ int nr_cpus; /* active cpus on the package, topology info is lost during
+ * cpu hotplug. so we have to track ourselves.
+ */
+ unsigned long power_limit_irq; /* keep track of package power limit
+ * notify interrupt enable status.
+ */
+ struct list_head plist;
+};
+#define PACKAGE_PLN_INT_SAVED BIT(0)
+#define MAX_PRIM_NAME (32)
+
+/* per domain data. used to describe individual knobs such that access function
+ * can be consolidated into one instead of many inline functions.
+ */
+struct rapl_primitive_info {
+ const char *name;
+ u64 mask;
+ int shift;
+ enum rapl_domain_msr_id id;
+ enum unit_type unit;
+ u32 flag;
+};
+
+#define PRIMITIVE_INFO_INIT(p, m, s, i, u, f) { \
+ .name = #p, \
+ .mask = m, \
+ .shift = s, \
+ .id = i, \
+ .unit = u, \
+ .flag = f \
+ }
+
+static void rapl_init_domains(struct rapl_package *rp);
+static int rapl_read_data_raw(struct rapl_domain *rd,
+ enum rapl_primitives prim,
+ bool xlate, u64 *data);
+static int rapl_write_data_raw(struct rapl_domain *rd,
+ enum rapl_primitives prim,
+ unsigned long long value);
+static u64 rapl_unit_xlate(int package, enum unit_type type, u64 value,
+ int to_raw);
+static void package_power_limit_irq_save(int package_id);
+
+static LIST_HEAD(rapl_packages); /* guarded by CPU hotplug lock */
+
+static const char * const rapl_domain_names[] = {
+ "package",
+ "core",
+ "uncore",
+ "dram",
+};
+
+static struct powercap_control_type *control_type; /* PowerCap Controller */
+
+/* caller to ensure CPU hotplug lock is held */
+static struct rapl_package *find_package_by_id(int id)
+{
+ struct rapl_package *rp;
+
+ list_for_each_entry(rp, &rapl_packages, plist) {
+ if (rp->id == id)
+ return rp;
+ }
+
+ return NULL;
+}
+
+/* caller to ensure CPU hotplug lock is held */
+static int find_active_cpu_on_package(int package_id)
+{
+ int i;
+
+ for_each_online_cpu(i) {
+ if (topology_physical_package_id(i) == package_id)
+ return i;
+ }
+ /* all CPUs on this package are offline */
+
+ return -ENODEV;
+}
+
+/* caller must hold cpu hotplug lock */
+static void rapl_cleanup_data(void)
+{
+ struct rapl_package *p, *tmp;
+
+ list_for_each_entry_safe(p, tmp, &rapl_packages, plist) {
+ kfree(p->domains);
+ list_del(&p->plist);
+ kfree(p);
+ }
+}
+
+static int get_energy_counter(struct powercap_zone *power_zone, u64 *energy_raw)
+{
+ struct rapl_domain *rd;
+ u64 energy_now;
+
+ /* prevent CPU hotplug, make sure the RAPL domain does not go
+ * away while reading the counter.
+ */
+ get_online_cpus();
+ rd = power_zone_to_rapl_domain(power_zone);
+
+ if (!rapl_read_data_raw(rd, ENERGY_COUNTER, true, &energy_now)) {
+ *energy_raw = energy_now;
+ put_online_cpus();
+
+ return 0;
+ }
+ put_online_cpus();
+
+ return -EIO;
+}
+
+static int get_max_energy_counter(struct powercap_zone *pcd_dev, u64 *energy)
+{
+ *energy = rapl_unit_xlate(0, ENERGY_UNIT, ENERGY_STATUS_MASK, 0);
+ return 0;
+}
+
+static int release_zone(struct powercap_zone *power_zone)
+{
+ struct rapl_domain *rd = power_zone_to_rapl_domain(power_zone);
+ struct rapl_package *rp;
+
+ /* package zone is the last zone of a package, we can free
+ * memory here since all children has been unregistered.
+ */
+ if (rd->id == RAPL_DOMAIN_PACKAGE) {
+ rp = find_package_by_id(rd->package_id);
+ if (!rp) {
+ dev_warn(&power_zone->dev, "no package id %s\n",
+ rd->name);
+ return -ENODEV;
+ }
+ kfree(rd);
+ rp->domains = NULL;
+ }
+
+ return 0;
+
+}
+
+static int find_nr_power_limit(struct rapl_domain *rd)
+{
+ int i;
+
+ for (i = 0; i < NR_POWER_LIMITS; i++) {
+ if (rd->rpl[i].name == NULL)
+ break;
+ }
+
+ return i;
+}
+
+static int set_domain_enable(struct powercap_zone *power_zone, bool mode)
+{
+ struct rapl_domain *rd = power_zone_to_rapl_domain(power_zone);
+ int nr_powerlimit;
+
+ if (rd->state & DOMAIN_STATE_BIOS_LOCKED)
+ return -EACCES;
+ get_online_cpus();
+ nr_powerlimit = find_nr_power_limit(rd);
+ /* here we activate/deactivate the hardware for power limiting */
+ rapl_write_data_raw(rd, PL1_ENABLE, mode);
+ /* always enable clamp such that p-state can go below OS requested
+ * range. power capping priority over guranteed frequency.
+ */
+ rapl_write_data_raw(rd, PL1_CLAMP, mode);
+ /* some domains have pl2 */
+ if (nr_powerlimit > 1) {
+ rapl_write_data_raw(rd, PL2_ENABLE, mode);
+ rapl_write_data_raw(rd, PL2_CLAMP, mode);
+ }
+ put_online_cpus();
+
+ return 0;
+}
+
+static int get_domain_enable(struct powercap_zone *power_zone, bool *mode)
+{
+ struct rapl_domain *rd = power_zone_to_rapl_domain(power_zone);
+ u64 val;
+
+ if (rd->state & DOMAIN_STATE_BIOS_LOCKED) {
+ *mode = false;
+ return 0;
+ }
+ get_online_cpus();
+ if (rapl_read_data_raw(rd, PL1_ENABLE, true, &val)) {
+ put_online_cpus();
+ return -EIO;
+ }
+ *mode = val;
+ put_online_cpus();
+
+ return 0;
+}
+
+/* per RAPL domain ops, in the order of rapl_domain_type */
+static struct powercap_zone_ops zone_ops[] = {
+ /* RAPL_DOMAIN_PACKAGE */
+ {
+ .get_energy_uj = get_energy_counter,
+ .get_max_energy_range_uj = get_max_energy_counter,
+ .release = release_zone,
+ .set_enable = set_domain_enable,
+ .get_enable = get_domain_enable,
+ },
+ /* RAPL_DOMAIN_PP0 */
+ {
+ .get_energy_uj = get_energy_counter,
+ .get_max_energy_range_uj = get_max_energy_counter,
+ .release = release_zone,
+ .set_enable = set_domain_enable,
+ .get_enable = get_domain_enable,
+ },
+ /* RAPL_DOMAIN_PP1 */
+ {
+ .get_energy_uj = get_energy_counter,
+ .get_max_energy_range_uj = get_max_energy_counter,
+ .release = release_zone,
+ .set_enable = set_domain_enable,
+ .get_enable = get_domain_enable,
+ },
+ /* RAPL_DOMAIN_DRAM */
+ {
+ .get_energy_uj = get_energy_counter,
+ .get_max_energy_range_uj = get_max_energy_counter,
+ .release = release_zone,
+ .set_enable = set_domain_enable,
+ .get_enable = get_domain_enable,
+ },
+};
+
+static int set_power_limit(struct powercap_zone *power_zone, int id,
+ u64 power_limit)
+{
+ struct rapl_domain *rd;
+ struct rapl_package *rp;
+ int ret = 0;
+
+ get_online_cpus();
+ rd = power_zone_to_rapl_domain(power_zone);
+ rp = find_package_by_id(rd->package_id);
+ if (!rp) {
+ ret = -ENODEV;
+ goto set_exit;
+ }
+
+ if (rd->state & DOMAIN_STATE_BIOS_LOCKED) {
+ dev_warn(&power_zone->dev, "%s locked by BIOS, monitoring only\n",
+ rd->name);
+ ret = -EACCES;
+ goto set_exit;
+ }
+
+ switch (rd->rpl[id].prim_id) {
+ case PL1_ENABLE:
+ rapl_write_data_raw(rd, POWER_LIMIT1, power_limit);
+ break;
+ case PL2_ENABLE:
+ rapl_write_data_raw(rd, POWER_LIMIT2, power_limit);
+ break;
+ default:
+ ret = -EINVAL;
+ }
+ if (!ret)
+ package_power_limit_irq_save(rd->package_id);
+set_exit:
+ put_online_cpus();
+ return ret;
+}
+
+static int get_current_power_limit(struct powercap_zone *power_zone, int id,
+ u64 *data)
+{
+ struct rapl_domain *rd;
+ u64 val;
+ int prim;
+ int ret = 0;
+
+ get_online_cpus();
+ rd = power_zone_to_rapl_domain(power_zone);
+ switch (rd->rpl[id].prim_id) {
+ case PL1_ENABLE:
+ prim = POWER_LIMIT1;
+ break;
+ case PL2_ENABLE:
+ prim = POWER_LIMIT2;
+ break;
+ default:
+ put_online_cpus();
+ return -EINVAL;
+ }
+ if (rapl_read_data_raw(rd, prim, true, &val))
+ ret = -EIO;
+ else
+ *data = val;
+
+ put_online_cpus();
+
+ return ret;
+}
+
+static int set_time_window(struct powercap_zone *power_zone, int id,
+ u64 window)
+{
+ struct rapl_domain *rd;
+ int ret = 0;
+
+ get_online_cpus();
+ rd = power_zone_to_rapl_domain(power_zone);
+ switch (rd->rpl[id].prim_id) {
+ case PL1_ENABLE:
+ rapl_write_data_raw(rd, TIME_WINDOW1, window);
+ break;
+ case PL2_ENABLE:
+ rapl_write_data_raw(rd, TIME_WINDOW2, window);
+ break;
+ default:
+ ret = -EINVAL;
+ }
+ put_online_cpus();
+ return ret;
+}
+
+static int get_time_window(struct powercap_zone *power_zone, int id, u64 *data)
+{
+ struct rapl_domain *rd;
+ u64 val;
+ int ret = 0;
+
+ get_online_cpus();
+ rd = power_zone_to_rapl_domain(power_zone);
+ switch (rd->rpl[id].prim_id) {
+ case PL1_ENABLE:
+ ret = rapl_read_data_raw(rd, TIME_WINDOW1, true, &val);
+ break;
+ case PL2_ENABLE:
+ ret = rapl_read_data_raw(rd, TIME_WINDOW2, true, &val);
+ break;
+ default:
+ put_online_cpus();
+ return -EINVAL;
+ }
+ if (!ret)
+ *data = val;
+ put_online_cpus();
+
+ return ret;
+}
+
+static const char *get_constraint_name(struct powercap_zone *power_zone, int id)
+{
+ struct rapl_power_limit *rpl;
+ struct rapl_domain *rd;
+
+ rd = power_zone_to_rapl_domain(power_zone);
+ rpl = (struct rapl_power_limit *) &rd->rpl[id];
+
+ return rpl->name;
+}
+
+
+static int get_max_power(struct powercap_zone *power_zone, int id,
+ u64 *data)
+{
+ struct rapl_domain *rd;
+ u64 val;
+ int prim;
+ int ret = 0;
+
+ get_online_cpus();
+ rd = power_zone_to_rapl_domain(power_zone);
+ switch (rd->rpl[id].prim_id) {
+ case PL1_ENABLE:
+ prim = THERMAL_SPEC_POWER;
+ break;
+ case PL2_ENABLE:
+ prim = MAX_POWER;
+ break;
+ default:
+ put_online_cpus();
+ return -EINVAL;
+ }
+ if (rapl_read_data_raw(rd, prim, true, &val))
+ ret = -EIO;
+ else
+ *data = val;
+
+ put_online_cpus();
+
+ return ret;
+}
+
+static struct powercap_zone_constraint_ops constraint_ops = {
+ .set_power_limit_uw = set_power_limit,
+ .get_power_limit_uw = get_current_power_limit,
+ .set_time_window_us = set_time_window,
+ .get_time_window_us = get_time_window,
+ .get_max_power_uw = get_max_power,
+ .get_name = get_constraint_name,
+};
+
+/* called after domain detection and package level data are set */
+static void rapl_init_domains(struct rapl_package *rp)
+{
+ int i;
+ struct rapl_domain *rd = rp->domains;
+
+ for (i = 0; i < RAPL_DOMAIN_MAX; i++) {
+ unsigned int mask = rp->domain_map & (1 << i);
+ switch (mask) {
+ case BIT(RAPL_DOMAIN_PACKAGE):
+ rd->name = rapl_domain_names[RAPL_DOMAIN_PACKAGE];
+ rd->id = RAPL_DOMAIN_PACKAGE;
+ rd->msrs[0] = MSR_PKG_POWER_LIMIT;
+ rd->msrs[1] = MSR_PKG_ENERGY_STATUS;
+ rd->msrs[2] = MSR_PKG_PERF_STATUS;
+ rd->msrs[3] = 0;
+ rd->msrs[4] = MSR_PKG_POWER_INFO;
+ rd->rpl[0].prim_id = PL1_ENABLE;
+ rd->rpl[0].name = pl1_name;
+ rd->rpl[1].prim_id = PL2_ENABLE;
+ rd->rpl[1].name = pl2_name;
+ break;
+ case BIT(RAPL_DOMAIN_PP0):
+ rd->name = rapl_domain_names[RAPL_DOMAIN_PP0];
+ rd->id = RAPL_DOMAIN_PP0;
+ rd->msrs[0] = MSR_PP0_POWER_LIMIT;
+ rd->msrs[1] = MSR_PP0_ENERGY_STATUS;
+ rd->msrs[2] = 0;
+ rd->msrs[3] = MSR_PP0_POLICY;
+ rd->msrs[4] = 0;
+ rd->rpl[0].prim_id = PL1_ENABLE;
+ rd->rpl[0].name = pl1_name;
+ break;
+ case BIT(RAPL_DOMAIN_PP1):
+ rd->name = rapl_domain_names[RAPL_DOMAIN_PP1];
+ rd->id = RAPL_DOMAIN_PP1;
+ rd->msrs[0] = MSR_PP1_POWER_LIMIT;
+ rd->msrs[1] = MSR_PP1_ENERGY_STATUS;
+ rd->msrs[2] = 0;
+ rd->msrs[3] = MSR_PP1_POLICY;
+ rd->msrs[4] = 0;
+ rd->rpl[0].prim_id = PL1_ENABLE;
+ rd->rpl[0].name = pl1_name;
+ break;
+ case BIT(RAPL_DOMAIN_DRAM):
+ rd->name = rapl_domain_names[RAPL_DOMAIN_DRAM];
+ rd->id = RAPL_DOMAIN_DRAM;
+ rd->msrs[0] = MSR_DRAM_POWER_LIMIT;
+ rd->msrs[1] = MSR_DRAM_ENERGY_STATUS;
+ rd->msrs[2] = MSR_DRAM_PERF_STATUS;
+ rd->msrs[3] = 0;
+ rd->msrs[4] = MSR_DRAM_POWER_INFO;
+ rd->rpl[0].prim_id = PL1_ENABLE;
+ rd->rpl[0].name = pl1_name;
+ break;
+ }
+ if (mask) {
+ rd->package_id = rp->id;
+ rd++;
+ }
+ }
+}
+
+static u64 rapl_unit_xlate(int package, enum unit_type type, u64 value,
+ int to_raw)
+{
+ u64 divisor = 1;
+ int scale = 1; /* scale to user friendly data without floating point */
+ u64 f, y; /* fraction and exp. used for time unit */
+ struct rapl_package *rp;
+
+ rp = find_package_by_id(package);
+ if (!rp)
+ return value;
+
+ switch (type) {
+ case POWER_UNIT:
+ divisor = rp->power_unit_divisor;
+ scale = POWER_UNIT_SCALE;
+ break;
+ case ENERGY_UNIT:
+ scale = ENERGY_UNIT_SCALE;
+ divisor = rp->energy_unit_divisor;
+ break;
+ case TIME_UNIT:
+ divisor = rp->time_unit_divisor;
+ scale = TIME_UNIT_SCALE;
+ /* special processing based on 2^Y*(1+F)/4 = val/divisor, refer
+ * to Intel Software Developer's manual Vol. 3a, CH 14.7.4.
+ */
+ if (!to_raw) {
+ f = (value & 0x60) >> 5;
+ y = value & 0x1f;
+ value = (1 << y) * (4 + f) * scale / 4;
+ return div64_u64(value, divisor);
+ } else {
+ do_div(value, scale);
+ value *= divisor;
+ y = ilog2(value);
+ f = div64_u64(4 * (value - (1 << y)), 1 << y);
+ value = (y & 0x1f) | ((f & 0x3) << 5);
+ return value;
+ }
+ break;
+ case ARBITRARY_UNIT:
+ default:
+ return value;
+ };
+
+ if (to_raw)
+ return div64_u64(value * divisor, scale);
+ else
+ return div64_u64(value * scale, divisor);
+}
+
+/* in the order of enum rapl_primitives */
+static struct rapl_primitive_info rpi[] = {
+ /* name, mask, shift, msr index, unit divisor */
+ PRIMITIVE_INFO_INIT(ENERGY_COUNTER, ENERGY_STATUS_MASK, 0,
+ RAPL_DOMAIN_MSR_STATUS, ENERGY_UNIT, 0),
+ PRIMITIVE_INFO_INIT(POWER_LIMIT1, POWER_LIMIT1_MASK, 0,
+ RAPL_DOMAIN_MSR_LIMIT, POWER_UNIT, 0),
+ PRIMITIVE_INFO_INIT(POWER_LIMIT2, POWER_LIMIT2_MASK, 32,
+ RAPL_DOMAIN_MSR_LIMIT, POWER_UNIT, 0),
+ PRIMITIVE_INFO_INIT(FW_LOCK, POWER_PP_LOCK, 31,
+ RAPL_DOMAIN_MSR_LIMIT, ARBITRARY_UNIT, 0),
+ PRIMITIVE_INFO_INIT(PL1_ENABLE, POWER_LIMIT1_ENABLE, 15,
+ RAPL_DOMAIN_MSR_LIMIT, ARBITRARY_UNIT, 0),
+ PRIMITIVE_INFO_INIT(PL1_CLAMP, POWER_LIMIT1_CLAMP, 16,
+ RAPL_DOMAIN_MSR_LIMIT, ARBITRARY_UNIT, 0),
+ PRIMITIVE_INFO_INIT(PL2_ENABLE, POWER_LIMIT2_ENABLE, 47,
+ RAPL_DOMAIN_MSR_LIMIT, ARBITRARY_UNIT, 0),
+ PRIMITIVE_INFO_INIT(PL2_CLAMP, POWER_LIMIT2_CLAMP, 48,
+ RAPL_DOMAIN_MSR_LIMIT, ARBITRARY_UNIT, 0),
+ PRIMITIVE_INFO_INIT(TIME_WINDOW1, TIME_WINDOW1_MASK, 17,
+ RAPL_DOMAIN_MSR_LIMIT, TIME_UNIT, 0),
+ PRIMITIVE_INFO_INIT(TIME_WINDOW2, TIME_WINDOW2_MASK, 49,
+ RAPL_DOMAIN_MSR_LIMIT, TIME_UNIT, 0),
+ PRIMITIVE_INFO_INIT(THERMAL_SPEC_POWER, POWER_INFO_THERMAL_SPEC_MASK,
+ 0, RAPL_DOMAIN_MSR_INFO, POWER_UNIT, 0),
+ PRIMITIVE_INFO_INIT(MAX_POWER, POWER_INFO_MAX_MASK, 32,
+ RAPL_DOMAIN_MSR_INFO, POWER_UNIT, 0),
+ PRIMITIVE_INFO_INIT(MIN_POWER, POWER_INFO_MIN_MASK, 16,
+ RAPL_DOMAIN_MSR_INFO, POWER_UNIT, 0),
+ PRIMITIVE_INFO_INIT(MAX_TIME_WINDOW, POWER_INFO_MAX_TIME_WIN_MASK, 48,
+ RAPL_DOMAIN_MSR_INFO, TIME_UNIT, 0),
+ PRIMITIVE_INFO_INIT(THROTTLED_TIME, PERF_STATUS_THROTTLE_TIME_MASK, 0,
+ RAPL_DOMAIN_MSR_PERF, TIME_UNIT, 0),
+ PRIMITIVE_INFO_INIT(PRIORITY_LEVEL, PP_POLICY_MASK, 0,
+ RAPL_DOMAIN_MSR_POLICY, ARBITRARY_UNIT, 0),
+ /* non-hardware */
+ PRIMITIVE_INFO_INIT(AVERAGE_POWER, 0, 0, 0, POWER_UNIT,
+ RAPL_PRIMITIVE_DERIVED),
+ {NULL, 0, 0, 0},
+};
+
+/* Read primitive data based on its related struct rapl_primitive_info.
+ * if xlate flag is set, return translated data based on data units, i.e.
+ * time, energy, and power.
+ * RAPL MSRs are non-architectual and are laid out not consistently across
+ * domains. Here we use primitive info to allow writing consolidated access
+ * functions.
+ * For a given primitive, it is processed by MSR mask and shift. Unit conversion
+ * is pre-assigned based on RAPL unit MSRs read at init time.
+ * 63-------------------------- 31--------------------------- 0
+ * | xxxxx (mask) |
+ * | |<- shift ----------------|
+ * 63-------------------------- 31--------------------------- 0
+ */
+static int rapl_read_data_raw(struct rapl_domain *rd,
+ enum rapl_primitives prim,
+ bool xlate, u64 *data)
+{
+ u64 value, final;
+ u32 msr;
+ struct rapl_primitive_info *rp = &rpi[prim];
+ int cpu;
+
+ if (!rp->name || rp->flag & RAPL_PRIMITIVE_DUMMY)
+ return -EINVAL;
+
+ msr = rd->msrs[rp->id];
+ if (!msr)
+ return -EINVAL;
+ /* use physical package id to look up active cpus */
+ cpu = find_active_cpu_on_package(rd->package_id);
+ if (cpu < 0)
+ return cpu;
+
+ /* special-case package domain, which uses a different bit*/
+ if (prim == FW_LOCK && rd->id == RAPL_DOMAIN_PACKAGE) {
+ rp->mask = POWER_PACKAGE_LOCK;
+ rp->shift = 63;
+ }
+ /* non-hardware data are collected by the polling thread */
+ if (rp->flag & RAPL_PRIMITIVE_DERIVED) {
+ *data = rd->rdd.primitives[prim];
+ return 0;
+ }
+
+ if (rdmsrl_safe_on_cpu(cpu, msr, &value)) {
+ pr_debug("failed to read msr 0x%x on cpu %d\n", msr, cpu);
+ return -EIO;
+ }
+
+ final = value & rp->mask;
+ final = final >> rp->shift;
+ if (xlate)
+ *data = rapl_unit_xlate(rd->package_id, rp->unit, final, 0);
+ else
+ *data = final;
+
+ return 0;
+}
+
+/* Similar use of primitive info in the read counterpart */
+static int rapl_write_data_raw(struct rapl_domain *rd,
+ enum rapl_primitives prim,
+ unsigned long long value)
+{
+ u64 msr_val;
+ u32 msr;
+ struct rapl_primitive_info *rp = &rpi[prim];
+ int cpu;
+
+ cpu = find_active_cpu_on_package(rd->package_id);
+ if (cpu < 0)
+ return cpu;
+ msr = rd->msrs[rp->id];
+ if (rdmsrl_safe_on_cpu(cpu, msr, &msr_val)) {
+ dev_dbg(&rd->power_zone.dev,
+ "failed to read msr 0x%x on cpu %d\n", msr, cpu);
+ return -EIO;
+ }
+ value = rapl_unit_xlate(rd->package_id, rp->unit, value, 1);
+ msr_val &= ~rp->mask;
+ msr_val |= value << rp->shift;
+ if (wrmsrl_safe_on_cpu(cpu, msr, msr_val)) {
+ dev_dbg(&rd->power_zone.dev,
+ "failed to write msr 0x%x on cpu %d\n", msr, cpu);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int rapl_check_unit(struct rapl_package *rp, int cpu)
+{
+ u64 msr_val;
+ u32 value;
+
+ if (rdmsrl_safe_on_cpu(cpu, MSR_RAPL_POWER_UNIT, &msr_val)) {
+ pr_err("Failed to read power unit MSR 0x%x on CPU %d, exit.\n",
+ MSR_RAPL_POWER_UNIT, cpu);
+ return -ENODEV;
+ }
+
+ /* Raw RAPL data stored in MSRs are in certain scales. We need to
+ * convert them into standard units based on the divisors reported in
+ * the RAPL unit MSRs.
+ * i.e.
+ * energy unit: 1/enery_unit_divisor Joules
+ * power unit: 1/power_unit_divisor Watts
+ * time unit: 1/time_unit_divisor Seconds
+ */
+ value = (msr_val & ENERGY_UNIT_MASK) >> ENERGY_UNIT_OFFSET;
+ rp->energy_unit_divisor = 1 << value;
+
+
+ value = (msr_val & POWER_UNIT_MASK) >> POWER_UNIT_OFFSET;
+ rp->power_unit_divisor = 1 << value;
+
+ value = (msr_val & TIME_UNIT_MASK) >> TIME_UNIT_OFFSET;
+ rp->time_unit_divisor = 1 << value;
+
+ pr_debug("Physical package %d units: energy=%d, time=%d, power=%d\n",
+ rp->id,
+ rp->energy_unit_divisor,
+ rp->time_unit_divisor,
+ rp->power_unit_divisor);
+
+ return 0;
+}
+
+/* REVISIT:
+ * When package power limit is set artificially low by RAPL, LVT
+ * thermal interrupt for package power limit should be ignored
+ * since we are not really exceeding the real limit. The intention
+ * is to avoid excessive interrupts while we are trying to save power.
+ * A useful feature might be routing the package_power_limit interrupt
+ * to userspace via eventfd. once we have a usecase, this is simple
+ * to do by adding an atomic notifier.
+ */
+
+static void package_power_limit_irq_save(int package_id)
+{
+ u32 l, h = 0;
+ int cpu;
+ struct rapl_package *rp;
+
+ rp = find_package_by_id(package_id);
+ if (!rp)
+ return;
+
+ if (!boot_cpu_has(X86_FEATURE_PTS) || !boot_cpu_has(X86_FEATURE_PLN))
+ return;
+
+ cpu = find_active_cpu_on_package(package_id);
+ if (cpu < 0)
+ return;
+ /* save the state of PLN irq mask bit before disabling it */
+ rdmsr_safe_on_cpu(cpu, MSR_IA32_PACKAGE_THERM_INTERRUPT, &l, &h);
+ if (!(rp->power_limit_irq & PACKAGE_PLN_INT_SAVED)) {
+ rp->power_limit_irq = l & PACKAGE_THERM_INT_PLN_ENABLE;
+ rp->power_limit_irq |= PACKAGE_PLN_INT_SAVED;
+ }
+ l &= ~PACKAGE_THERM_INT_PLN_ENABLE;
+ wrmsr_on_cpu(cpu, MSR_IA32_PACKAGE_THERM_INTERRUPT, l, h);
+}
+
+/* restore per package power limit interrupt enable state */
+static void package_power_limit_irq_restore(int package_id)
+{
+ u32 l, h;
+ int cpu;
+ struct rapl_package *rp;
+
+ rp = find_package_by_id(package_id);
+ if (!rp)
+ return;
+
+ if (!boot_cpu_has(X86_FEATURE_PTS) || !boot_cpu_has(X86_FEATURE_PLN))
+ return;
+
+ cpu = find_active_cpu_on_package(package_id);
+ if (cpu < 0)
+ return;
+
+ /* irq enable state not saved, nothing to restore */
+ if (!(rp->power_limit_irq & PACKAGE_PLN_INT_SAVED))
+ return;
+ rdmsr_safe_on_cpu(cpu, MSR_IA32_PACKAGE_THERM_INTERRUPT, &l, &h);
+
+ if (rp->power_limit_irq & PACKAGE_THERM_INT_PLN_ENABLE)
+ l |= PACKAGE_THERM_INT_PLN_ENABLE;
+ else
+ l &= ~PACKAGE_THERM_INT_PLN_ENABLE;
+
+ wrmsr_on_cpu(cpu, MSR_IA32_PACKAGE_THERM_INTERRUPT, l, h);
+}
+
+static const struct x86_cpu_id rapl_ids[] = {
+ { X86_VENDOR_INTEL, 6, 0x2a},/* SNB */
+ { X86_VENDOR_INTEL, 6, 0x2d},/* SNB EP */
+ { X86_VENDOR_INTEL, 6, 0x3a},/* IVB */
+ { X86_VENDOR_INTEL, 6, 0x45},/* HSW */
+ /* TODO: Add more CPU IDs after testing */
+ {}
+};
+MODULE_DEVICE_TABLE(x86cpu, rapl_ids);
+
+/* read once for all raw primitive data for all packages, domains */
+static void rapl_update_domain_data(void)
+{
+ int dmn, prim;
+ u64 val;
+ struct rapl_package *rp;
+
+ list_for_each_entry(rp, &rapl_packages, plist) {
+ for (dmn = 0; dmn < rp->nr_domains; dmn++) {
+ pr_debug("update package %d domain %s data\n", rp->id,
+ rp->domains[dmn].name);
+ /* exclude non-raw primitives */
+ for (prim = 0; prim < NR_RAW_PRIMITIVES; prim++)
+ if (!rapl_read_data_raw(&rp->domains[dmn], prim,
+ rpi[prim].unit,
+ &val))
+ rp->domains[dmn].rdd.primitives[prim] =
+ val;
+ }
+ }
+
+}
+
+static int rapl_unregister_powercap(void)
+{
+ struct rapl_package *rp;
+ struct rapl_domain *rd, *rd_package = NULL;
+
+ /* unregister all active rapl packages from the powercap layer,
+ * hotplug lock held
+ */
+ list_for_each_entry(rp, &rapl_packages, plist) {
+ package_power_limit_irq_restore(rp->id);
+
+ for (rd = rp->domains; rd < rp->domains + rp->nr_domains;
+ rd++) {
+ pr_debug("remove package, undo power limit on %d: %s\n",
+ rp->id, rd->name);
+ rapl_write_data_raw(rd, PL1_ENABLE, 0);
+ rapl_write_data_raw(rd, PL2_ENABLE, 0);
+ rapl_write_data_raw(rd, PL1_CLAMP, 0);
+ rapl_write_data_raw(rd, PL2_CLAMP, 0);
+ if (rd->id == RAPL_DOMAIN_PACKAGE) {
+ rd_package = rd;
+ continue;
+ }
+ powercap_unregister_zone(control_type, &rd->power_zone);
+ }
+ /* do the package zone last */
+ if (rd_package)
+ powercap_unregister_zone(control_type,
+ &rd_package->power_zone);
+ }
+ powercap_unregister_control_type(control_type);
+
+ return 0;
+}
+
+static int rapl_package_register_powercap(struct rapl_package *rp)
+{
+ struct rapl_domain *rd;
+ int ret = 0;
+ char dev_name[17]; /* max domain name = 7 + 1 + 8 for int + 1 for null*/
+ struct powercap_zone *power_zone = NULL;
+ int nr_pl;
+
+ /* first we register package domain as the parent zone*/
+ for (rd = rp->domains; rd < rp->domains + rp->nr_domains; rd++) {
+ if (rd->id == RAPL_DOMAIN_PACKAGE) {
+ nr_pl = find_nr_power_limit(rd);
+ pr_debug("register socket %d package domain %s\n",
+ rp->id, rd->name);
+ memset(dev_name, 0, sizeof(dev_name));
+ snprintf(dev_name, sizeof(dev_name), "%s-%d",
+ rd->name, rp->id);
+ power_zone = powercap_register_zone(&rd->power_zone,
+ control_type,
+ dev_name, NULL,
+ &zone_ops[rd->id],
+ nr_pl,
+ &constraint_ops);
+ if (IS_ERR(power_zone)) {
+ pr_debug("failed to register package, %d\n",
+ rp->id);
+ ret = PTR_ERR(power_zone);
+ goto exit_package;
+ }
+ /* track parent zone in per package/socket data */
+ rp->power_zone = power_zone;
+ /* done, only one package domain per socket */
+ break;
+ }
+ }
+ if (!power_zone) {
+ pr_err("no package domain found, unknown topology!\n");
+ ret = -ENODEV;
+ goto exit_package;
+ }
+ /* now register domains as children of the socket/package*/
+ for (rd = rp->domains; rd < rp->domains + rp->nr_domains; rd++) {
+ if (rd->id == RAPL_DOMAIN_PACKAGE)
+ continue;
+ /* number of power limits per domain varies */
+ nr_pl = find_nr_power_limit(rd);
+ power_zone = powercap_register_zone(&rd->power_zone,
+ control_type, rd->name,
+ rp->power_zone,
+ &zone_ops[rd->id], nr_pl,
+ &constraint_ops);
+
+ if (IS_ERR(power_zone)) {
+ pr_debug("failed to register power_zone, %d:%s:%s\n",
+ rp->id, rd->name, dev_name);
+ ret = PTR_ERR(power_zone);
+ goto err_cleanup;
+ }
+ }
+
+exit_package:
+ return ret;
+err_cleanup:
+ /* clean up previously initialized domains within the package if we
+ * failed after the first domain setup.
+ */
+ while (--rd >= rp->domains) {
+ pr_debug("unregister package %d domain %s\n", rp->id, rd->name);
+ powercap_unregister_zone(control_type, &rd->power_zone);
+ }
+
+ return ret;
+}
+
+static int rapl_register_powercap(void)
+{
+ struct rapl_domain *rd;
+ struct rapl_package *rp;
+ int ret = 0;
+
+ control_type = powercap_register_control_type(NULL, "intel-rapl", NULL);
+ if (IS_ERR(control_type)) {
+ pr_debug("failed to register powercap control_type.\n");
+ return PTR_ERR(control_type);
+ }
+ /* read the initial data */
+ rapl_update_domain_data();
+ list_for_each_entry(rp, &rapl_packages, plist)
+ if (rapl_package_register_powercap(rp))
+ goto err_cleanup_package;
+ return ret;
+
+err_cleanup_package:
+ /* clean up previously initialized packages */
+ list_for_each_entry_continue_reverse(rp, &rapl_packages, plist) {
+ for (rd = rp->domains; rd < rp->domains + rp->nr_domains;
+ rd++) {
+ pr_debug("unregister zone/package %d, %s domain\n",
+ rp->id, rd->name);
+ powercap_unregister_zone(control_type, &rd->power_zone);
+ }
+ }
+
+ return ret;
+}
+
+static int rapl_check_domain(int cpu, int domain)
+{
+ unsigned msr;
+ u64 val1, val2 = 0;
+ int retry = 0;
+
+ switch (domain) {
+ case RAPL_DOMAIN_PACKAGE:
+ msr = MSR_PKG_ENERGY_STATUS;
+ break;
+ case RAPL_DOMAIN_PP0:
+ msr = MSR_PP0_ENERGY_STATUS;
+ break;
+ case RAPL_DOMAIN_PP1:
+ msr = MSR_PP1_ENERGY_STATUS;
+ break;
+ case RAPL_DOMAIN_DRAM:
+ msr = MSR_DRAM_ENERGY_STATUS;
+ break;
+ default:
+ pr_err("invalid domain id %d\n", domain);
+ return -EINVAL;
+ }
+ if (rdmsrl_safe_on_cpu(cpu, msr, &val1))
+ return -ENODEV;
+
+ /* energy counters roll slowly on some domains */
+ while (++retry < 10) {
+ usleep_range(10000, 15000);
+ rdmsrl_safe_on_cpu(cpu, msr, &val2);
+ if ((val1 & ENERGY_STATUS_MASK) != (val2 & ENERGY_STATUS_MASK))
+ return 0;
+ }
+ /* if energy counter does not change, report as bad domain */
+ pr_info("domain %s energy ctr %llu:%llu not working, skip\n",
+ rapl_domain_names[domain], val1, val2);
+
+ return -ENODEV;
+}
+
+/* Detect active and valid domains for the given CPU, caller must
+ * ensure the CPU belongs to the targeted package and CPU hotlug is disabled.
+ */
+static int rapl_detect_domains(struct rapl_package *rp, int cpu)
+{
+ int i;
+ int ret = 0;
+ struct rapl_domain *rd;
+ u64 locked;
+
+ for (i = 0; i < RAPL_DOMAIN_MAX; i++) {
+ /* use physical package id to read counters */
+ if (!rapl_check_domain(cpu, i))
+ rp->domain_map |= 1 << i;
+ }
+ rp->nr_domains = bitmap_weight(&rp->domain_map, RAPL_DOMAIN_MAX);
+ if (!rp->nr_domains) {
+ pr_err("no valid rapl domains found in package %d\n", rp->id);
+ ret = -ENODEV;
+ goto done;
+ }
+ pr_debug("found %d domains on package %d\n", rp->nr_domains, rp->id);
+
+ rp->domains = kcalloc(rp->nr_domains + 1, sizeof(struct rapl_domain),
+ GFP_KERNEL);
+ if (!rp->domains) {
+ ret = -ENOMEM;
+ goto done;
+ }
+ rapl_init_domains(rp);
+
+ for (rd = rp->domains; rd < rp->domains + rp->nr_domains; rd++) {
+ /* check if the domain is locked by BIOS */
+ if (rapl_read_data_raw(rd, FW_LOCK, false, &locked)) {
+ pr_info("RAPL package %d domain %s locked by BIOS\n",
+ rp->id, rd->name);
+ rd->state |= DOMAIN_STATE_BIOS_LOCKED;
+ }
+ }
+
+
+done:
+ return ret;
+}
+
+static bool is_package_new(int package)
+{
+ struct rapl_package *rp;
+
+ /* caller prevents cpu hotplug, there will be no new packages added
+ * or deleted while traversing the package list, no need for locking.
+ */
+ list_for_each_entry(rp, &rapl_packages, plist)
+ if (package == rp->id)
+ return false;
+
+ return true;
+}
+
+/* RAPL interface can be made of a two-level hierarchy: package level and domain
+ * level. We first detect the number of packages then domains of each package.
+ * We have to consider the possiblity of CPU online/offline due to hotplug and
+ * other scenarios.
+ */
+static int rapl_detect_topology(void)
+{
+ int i;
+ int phy_package_id;
+ struct rapl_package *new_package, *rp;
+
+ for_each_online_cpu(i) {
+ phy_package_id = topology_physical_package_id(i);
+ if (is_package_new(phy_package_id)) {
+ new_package = kzalloc(sizeof(*rp), GFP_KERNEL);
+ if (!new_package) {
+ rapl_cleanup_data();
+ return -ENOMEM;
+ }
+ /* add the new package to the list */
+ new_package->id = phy_package_id;
+ new_package->nr_cpus = 1;
+
+ /* check if the package contains valid domains */
+ if (rapl_detect_domains(new_package, i) ||
+ rapl_check_unit(new_package, i)) {
+ kfree(new_package->domains);
+ kfree(new_package);
+ /* free up the packages already initialized */
+ rapl_cleanup_data();
+ return -ENODEV;
+ }
+ INIT_LIST_HEAD(&new_package->plist);
+ list_add(&new_package->plist, &rapl_packages);
+ } else {
+ rp = find_package_by_id(phy_package_id);
+ if (rp)
+ ++rp->nr_cpus;
+ }
+ }
+
+ return 0;
+}
+
+/* called from CPU hotplug notifier, hotplug lock held */
+static void rapl_remove_package(struct rapl_package *rp)
+{
+ struct rapl_domain *rd, *rd_package = NULL;
+
+ for (rd = rp->domains; rd < rp->domains + rp->nr_domains; rd++) {
+ if (rd->id == RAPL_DOMAIN_PACKAGE) {
+ rd_package = rd;
+ continue;
+ }
+ pr_debug("remove package %d, %s domain\n", rp->id, rd->name);
+ powercap_unregister_zone(control_type, &rd->power_zone);
+ }
+ /* do parent zone last */
+ powercap_unregister_zone(control_type, &rd_package->power_zone);
+ list_del(&rp->plist);
+ kfree(rp);
+}
+
+/* called from CPU hotplug notifier, hotplug lock held */
+static int rapl_add_package(int cpu)
+{
+ int ret = 0;
+ int phy_package_id;
+ struct rapl_package *rp;
+
+ phy_package_id = topology_physical_package_id(cpu);
+ rp = kzalloc(sizeof(struct rapl_package), GFP_KERNEL);
+ if (!rp)
+ return -ENOMEM;
+
+ /* add the new package to the list */
+ rp->id = phy_package_id;
+ rp->nr_cpus = 1;
+ /* check if the package contains valid domains */
+ if (rapl_detect_domains(rp, cpu) ||
+ rapl_check_unit(rp, cpu)) {
+ ret = -ENODEV;
+ goto err_free_package;
+ }
+ if (!rapl_package_register_powercap(rp)) {
+ INIT_LIST_HEAD(&rp->plist);
+ list_add(&rp->plist, &rapl_packages);
+ return ret;
+ }
+
+err_free_package:
+ kfree(rp->domains);
+ kfree(rp);
+
+ return ret;
+}
+
+/* Handles CPU hotplug on multi-socket systems.
+ * If a CPU goes online as the first CPU of the physical package
+ * we add the RAPL package to the system. Similarly, when the last
+ * CPU of the package is removed, we remove the RAPL package and its
+ * associated domains. Cooling devices are handled accordingly at
+ * per-domain level.
+ */
+static int rapl_cpu_callback(struct notifier_block *nfb,
+ unsigned long action, void *hcpu)
+{
+ unsigned long cpu = (unsigned long)hcpu;
+ int phy_package_id;
+ struct rapl_package *rp;
+
+ phy_package_id = topology_physical_package_id(cpu);
+ switch (action) {
+ case CPU_ONLINE:
+ case CPU_ONLINE_FROZEN:
+ case CPU_DOWN_FAILED:
+ case CPU_DOWN_FAILED_FROZEN:
+ rp = find_package_by_id(phy_package_id);
+ if (rp)
+ ++rp->nr_cpus;
+ else
+ rapl_add_package(cpu);
+ break;
+ case CPU_DOWN_PREPARE:
+ case CPU_DOWN_PREPARE_FROZEN:
+ rp = find_package_by_id(phy_package_id);
+ if (!rp)
+ break;
+ if (--rp->nr_cpus == 0)
+ rapl_remove_package(rp);
+ }
+
+ return NOTIFY_OK;
+}
+
+static struct notifier_block rapl_cpu_notifier = {
+ .notifier_call = rapl_cpu_callback,
+};
+
+static int __init rapl_init(void)
+{
+ int ret = 0;
+
+ if (!x86_match_cpu(rapl_ids)) {
+ pr_err("driver does not support CPU family %d model %d\n",
+ boot_cpu_data.x86, boot_cpu_data.x86_model);
+
+ return -ENODEV;
+ }
+ /* prevent CPU hotplug during detection */
+ get_online_cpus();
+ ret = rapl_detect_topology();
+ if (ret)
+ goto done;
+
+ if (rapl_register_powercap()) {
+ rapl_cleanup_data();
+ ret = -ENODEV;
+ goto done;
+ }
+ register_hotcpu_notifier(&rapl_cpu_notifier);
+done:
+ put_online_cpus();
+
+ return ret;
+}
+
+static void __exit rapl_exit(void)
+{
+ get_online_cpus();
+ unregister_hotcpu_notifier(&rapl_cpu_notifier);
+ rapl_unregister_powercap();
+ rapl_cleanup_data();
+ put_online_cpus();
+}
+
+module_init(rapl_init);
+module_exit(rapl_exit);
+
+MODULE_DESCRIPTION("Driver for Intel RAPL (Running Average Power Limit)");
+MODULE_AUTHOR("Jacob Pan <jacob.jun.pan@intel.com>");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+/*
+ * Power capping class
+ * Copyright (c) 2013, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/powercap.h>
+
+#define to_powercap_zone(n) container_of(n, struct powercap_zone, dev)
+#define to_powercap_control_type(n) \
+ container_of(n, struct powercap_control_type, dev)
+
+/* Power zone show function */
+#define define_power_zone_show(_attr) \
+static ssize_t _attr##_show(struct device *dev, \
+ struct device_attribute *dev_attr,\
+ char *buf) \
+{ \
+ u64 value; \
+ ssize_t len = -EINVAL; \
+ struct powercap_zone *power_zone = to_powercap_zone(dev); \
+ \
+ if (power_zone->ops->get_##_attr) { \
+ if (!power_zone->ops->get_##_attr(power_zone, &value)) \
+ len = sprintf(buf, "%lld\n", value); \
+ } \
+ \
+ return len; \
+}
+
+/* The only meaningful input is 0 (reset), others are silently ignored */
+#define define_power_zone_store(_attr) \
+static ssize_t _attr##_store(struct device *dev,\
+ struct device_attribute *dev_attr, \
+ const char *buf, size_t count) \
+{ \
+ int err; \
+ struct powercap_zone *power_zone = to_powercap_zone(dev); \
+ u64 value; \
+ \
+ err = kstrtoull(buf, 10, &value); \
+ if (err) \
+ return -EINVAL; \
+ if (value) \
+ return count; \
+ if (power_zone->ops->reset_##_attr) { \
+ if (!power_zone->ops->reset_##_attr(power_zone)) \
+ return count; \
+ } \
+ \
+ return -EINVAL; \
+}
+
+/* Power zone constraint show function */
+#define define_power_zone_constraint_show(_attr) \
+static ssize_t show_constraint_##_attr(struct device *dev, \
+ struct device_attribute *dev_attr,\
+ char *buf) \
+{ \
+ u64 value; \
+ ssize_t len = -ENODATA; \
+ struct powercap_zone *power_zone = to_powercap_zone(dev); \
+ int id; \
+ struct powercap_zone_constraint *pconst;\
+ \
+ if (!sscanf(dev_attr->attr.name, "constraint_%d_", &id)) \
+ return -EINVAL; \
+ if (id >= power_zone->const_id_cnt) \
+ return -EINVAL; \
+ pconst = &power_zone->constraints[id]; \
+ if (pconst && pconst->ops && pconst->ops->get_##_attr) { \
+ if (!pconst->ops->get_##_attr(power_zone, id, &value)) \
+ len = sprintf(buf, "%lld\n", value); \
+ } \
+ \
+ return len; \
+}
+
+/* Power zone constraint store function */
+#define define_power_zone_constraint_store(_attr) \
+static ssize_t store_constraint_##_attr(struct device *dev,\
+ struct device_attribute *dev_attr, \
+ const char *buf, size_t count) \
+{ \
+ int err; \
+ u64 value; \
+ struct powercap_zone *power_zone = to_powercap_zone(dev); \
+ int id; \
+ struct powercap_zone_constraint *pconst;\
+ \
+ if (!sscanf(dev_attr->attr.name, "constraint_%d_", &id)) \
+ return -EINVAL; \
+ if (id >= power_zone->const_id_cnt) \
+ return -EINVAL; \
+ pconst = &power_zone->constraints[id]; \
+ err = kstrtoull(buf, 10, &value); \
+ if (err) \
+ return -EINVAL; \
+ if (pconst && pconst->ops && pconst->ops->set_##_attr) { \
+ if (!pconst->ops->set_##_attr(power_zone, id, value)) \
+ return count; \
+ } \
+ \
+ return -ENODATA; \
+}
+
+/* Power zone information callbacks */
+define_power_zone_show(power_uw);
+define_power_zone_show(max_power_range_uw);
+define_power_zone_show(energy_uj);
+define_power_zone_store(energy_uj);
+define_power_zone_show(max_energy_range_uj);
+
+/* Power zone attributes */
+static DEVICE_ATTR_RO(max_power_range_uw);
+static DEVICE_ATTR_RO(power_uw);
+static DEVICE_ATTR_RO(max_energy_range_uj);
+static DEVICE_ATTR_RW(energy_uj);
+
+/* Power zone constraint attributes callbacks */
+define_power_zone_constraint_show(power_limit_uw);
+define_power_zone_constraint_store(power_limit_uw);
+define_power_zone_constraint_show(time_window_us);
+define_power_zone_constraint_store(time_window_us);
+define_power_zone_constraint_show(max_power_uw);
+define_power_zone_constraint_show(min_power_uw);
+define_power_zone_constraint_show(max_time_window_us);
+define_power_zone_constraint_show(min_time_window_us);
+
+/* For one time seeding of constraint device attributes */
+struct powercap_constraint_attr {
+ struct device_attribute power_limit_attr;
+ struct device_attribute time_window_attr;
+ struct device_attribute max_power_attr;
+ struct device_attribute min_power_attr;
+ struct device_attribute max_time_window_attr;
+ struct device_attribute min_time_window_attr;
+ struct device_attribute name_attr;
+};
+
+static struct powercap_constraint_attr
+ constraint_attrs[MAX_CONSTRAINTS_PER_ZONE];
+
+/* A list of powercap control_types */
+static LIST_HEAD(powercap_cntrl_list);
+/* Mutex to protect list of powercap control_types */
+static DEFINE_MUTEX(powercap_cntrl_list_lock);
+
+#define POWERCAP_CONSTRAINT_NAME_LEN 30 /* Some limit to avoid overflow */
+static ssize_t show_constraint_name(struct device *dev,
+ struct device_attribute *dev_attr,
+ char *buf)
+{
+ const char *name;
+ struct powercap_zone *power_zone = to_powercap_zone(dev);
+ int id;
+ ssize_t len = -ENODATA;
+ struct powercap_zone_constraint *pconst;
+
+ if (!sscanf(dev_attr->attr.name, "constraint_%d_", &id))
+ return -EINVAL;
+ if (id >= power_zone->const_id_cnt)
+ return -EINVAL;
+ pconst = &power_zone->constraints[id];
+
+ if (pconst && pconst->ops && pconst->ops->get_name) {
+ name = pconst->ops->get_name(power_zone, id);
+ if (name) {
+ snprintf(buf, POWERCAP_CONSTRAINT_NAME_LEN,
+ "%s\n", name);
+ buf[POWERCAP_CONSTRAINT_NAME_LEN] = '\0';
+ len = strlen(buf);
+ }
+ }
+
+ return len;
+}
+
+static int create_constraint_attribute(int id, const char *name,
+ int mode,
+ struct device_attribute *dev_attr,
+ ssize_t (*show)(struct device *,
+ struct device_attribute *, char *),
+ ssize_t (*store)(struct device *,
+ struct device_attribute *,
+ const char *, size_t)
+ )
+{
+
+ dev_attr->attr.name = kasprintf(GFP_KERNEL, "constraint_%d_%s",
+ id, name);
+ if (!dev_attr->attr.name)
+ return -ENOMEM;
+ dev_attr->attr.mode = mode;
+ dev_attr->show = show;
+ dev_attr->store = store;
+
+ return 0;
+}
+
+static void free_constraint_attributes(void)
+{
+ int i;
+
+ for (i = 0; i < MAX_CONSTRAINTS_PER_ZONE; ++i) {
+ kfree(constraint_attrs[i].power_limit_attr.attr.name);
+ kfree(constraint_attrs[i].time_window_attr.attr.name);
+ kfree(constraint_attrs[i].name_attr.attr.name);
+ kfree(constraint_attrs[i].max_power_attr.attr.name);
+ kfree(constraint_attrs[i].min_power_attr.attr.name);
+ kfree(constraint_attrs[i].max_time_window_attr.attr.name);
+ kfree(constraint_attrs[i].min_time_window_attr.attr.name);
+ }
+}
+
+static int seed_constraint_attributes(void)
+{
+ int i;
+ int ret;
+
+ for (i = 0; i < MAX_CONSTRAINTS_PER_ZONE; ++i) {
+ ret = create_constraint_attribute(i, "power_limit_uw",
+ S_IWUSR | S_IRUGO,
+ &constraint_attrs[i].power_limit_attr,
+ show_constraint_power_limit_uw,
+ store_constraint_power_limit_uw);
+ if (ret)
+ goto err_alloc;
+ ret = create_constraint_attribute(i, "time_window_us",
+ S_IWUSR | S_IRUGO,
+ &constraint_attrs[i].time_window_attr,
+ show_constraint_time_window_us,
+ store_constraint_time_window_us);
+ if (ret)
+ goto err_alloc;
+ ret = create_constraint_attribute(i, "name", S_IRUGO,
+ &constraint_attrs[i].name_attr,
+ show_constraint_name,
+ NULL);
+ if (ret)
+ goto err_alloc;
+ ret = create_constraint_attribute(i, "max_power_uw", S_IRUGO,
+ &constraint_attrs[i].max_power_attr,
+ show_constraint_max_power_uw,
+ NULL);
+ if (ret)
+ goto err_alloc;
+ ret = create_constraint_attribute(i, "min_power_uw", S_IRUGO,
+ &constraint_attrs[i].min_power_attr,
+ show_constraint_min_power_uw,
+ NULL);
+ if (ret)
+ goto err_alloc;
+ ret = create_constraint_attribute(i, "max_time_window_us",
+ S_IRUGO,
+ &constraint_attrs[i].max_time_window_attr,
+ show_constraint_max_time_window_us,
+ NULL);
+ if (ret)
+ goto err_alloc;
+ ret = create_constraint_attribute(i, "min_time_window_us",
+ S_IRUGO,
+ &constraint_attrs[i].min_time_window_attr,
+ show_constraint_min_time_window_us,
+ NULL);
+ if (ret)
+ goto err_alloc;
+
+ }
+
+ return 0;
+
+err_alloc:
+ free_constraint_attributes();
+
+ return ret;
+}
+
+static int create_constraints(struct powercap_zone *power_zone,
+ int nr_constraints,
+ struct powercap_zone_constraint_ops *const_ops)
+{
+ int i;
+ int ret = 0;
+ int count;
+ struct powercap_zone_constraint *pconst;
+
+ if (!power_zone || !const_ops || !const_ops->get_power_limit_uw ||
+ !const_ops->set_power_limit_uw ||
+ !const_ops->get_time_window_us ||
+ !const_ops->set_time_window_us)
+ return -EINVAL;
+
+ count = power_zone->zone_attr_count;
+ for (i = 0; i < nr_constraints; ++i) {
+ pconst = &power_zone->constraints[i];
+ pconst->ops = const_ops;
+ pconst->id = power_zone->const_id_cnt;
+ power_zone->const_id_cnt++;
+ power_zone->zone_dev_attrs[count++] =
+ &constraint_attrs[i].power_limit_attr.attr;
+ power_zone->zone_dev_attrs[count++] =
+ &constraint_attrs[i].time_window_attr.attr;
+ if (pconst->ops->get_name)
+ power_zone->zone_dev_attrs[count++] =
+ &constraint_attrs[i].name_attr.attr;
+ if (pconst->ops->get_max_power_uw)
+ power_zone->zone_dev_attrs[count++] =
+ &constraint_attrs[i].max_power_attr.attr;
+ if (pconst->ops->get_min_power_uw)
+ power_zone->zone_dev_attrs[count++] =
+ &constraint_attrs[i].min_power_attr.attr;
+ if (pconst->ops->get_max_time_window_us)
+ power_zone->zone_dev_attrs[count++] =
+ &constraint_attrs[i].max_time_window_attr.attr;
+ if (pconst->ops->get_min_time_window_us)
+ power_zone->zone_dev_attrs[count++] =
+ &constraint_attrs[i].min_time_window_attr.attr;
+ }
+ power_zone->zone_attr_count = count;
+
+ return ret;
+}
+
+static bool control_type_valid(void *control_type)
+{
+ struct powercap_control_type *pos = NULL;
+ bool found = false;
+
+ mutex_lock(&powercap_cntrl_list_lock);
+
+ list_for_each_entry(pos, &powercap_cntrl_list, node) {
+ if (pos == control_type) {
+ found = true;
+ break;
+ }
+ }
+ mutex_unlock(&powercap_cntrl_list_lock);
+
+ return found;
+}
+
+static ssize_t name_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct powercap_zone *power_zone = to_powercap_zone(dev);
+
+ return sprintf(buf, "%s\n", power_zone->name);
+}
+
+static DEVICE_ATTR_RO(name);
+
+/* Create zone and attributes in sysfs */
+static void create_power_zone_common_attributes(
+ struct powercap_zone *power_zone)
+{
+ int count = 0;
+
+ power_zone->zone_dev_attrs[count++] = &dev_attr_name.attr;
+ if (power_zone->ops->get_max_energy_range_uj)
+ power_zone->zone_dev_attrs[count++] =
+ &dev_attr_max_energy_range_uj.attr;
+ if (power_zone->ops->get_energy_uj)
+ power_zone->zone_dev_attrs[count++] =
+ &dev_attr_energy_uj.attr;
+ if (power_zone->ops->get_power_uw)
+ power_zone->zone_dev_attrs[count++] =
+ &dev_attr_power_uw.attr;
+ if (power_zone->ops->get_max_power_range_uw)
+ power_zone->zone_dev_attrs[count++] =
+ &dev_attr_max_power_range_uw.attr;
+ power_zone->zone_dev_attrs[count] = NULL;
+ power_zone->zone_attr_count = count;
+}
+
+static void powercap_release(struct device *dev)
+{
+ bool allocated;
+
+ if (dev->parent) {
+ struct powercap_zone *power_zone = to_powercap_zone(dev);
+
+ /* Store flag as the release() may free memory */
+ allocated = power_zone->allocated;
+ /* Remove id from parent idr struct */
+ idr_remove(power_zone->parent_idr, power_zone->id);
+ /* Destroy idrs allocated for this zone */
+ idr_destroy(&power_zone->idr);
+ kfree(power_zone->name);
+ kfree(power_zone->zone_dev_attrs);
+ kfree(power_zone->constraints);
+ if (power_zone->ops->release)
+ power_zone->ops->release(power_zone);
+ if (allocated)
+ kfree(power_zone);
+ } else {
+ struct powercap_control_type *control_type =
+ to_powercap_control_type(dev);
+
+ /* Store flag as the release() may free memory */
+ allocated = control_type->allocated;
+ idr_destroy(&control_type->idr);
+ mutex_destroy(&control_type->lock);
+ if (control_type->ops && control_type->ops->release)
+ control_type->ops->release(control_type);
+ if (allocated)
+ kfree(control_type);
+ }
+}
+
+static ssize_t enabled_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ bool mode = true;
+
+ /* Default is enabled */
+ if (dev->parent) {
+ struct powercap_zone *power_zone = to_powercap_zone(dev);
+ if (power_zone->ops->get_enable)
+ if (power_zone->ops->get_enable(power_zone, &mode))
+ mode = false;
+ } else {
+ struct powercap_control_type *control_type =
+ to_powercap_control_type(dev);
+ if (control_type->ops && control_type->ops->get_enable)
+ if (control_type->ops->get_enable(control_type, &mode))
+ mode = false;
+ }
+
+ return sprintf(buf, "%d\n", mode);
+}
+
+static ssize_t enabled_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ bool mode;
+
+ if (strtobool(buf, &mode))
+ return -EINVAL;
+ if (dev->parent) {
+ struct powercap_zone *power_zone = to_powercap_zone(dev);
+ if (power_zone->ops->set_enable)
+ if (!power_zone->ops->set_enable(power_zone, mode))
+ return len;
+ } else {
+ struct powercap_control_type *control_type =
+ to_powercap_control_type(dev);
+ if (control_type->ops && control_type->ops->set_enable)
+ if (!control_type->ops->set_enable(control_type, mode))
+ return len;
+ }
+
+ return -ENOSYS;
+}
+
+static DEVICE_ATTR_RW(enabled);
+
+static struct attribute *powercap_attrs[] = {
+ &dev_attr_enabled.attr,
+ NULL,
+};
+ATTRIBUTE_GROUPS(powercap);
+
+static struct class powercap_class = {
+ .name = "powercap",
+ .dev_release = powercap_release,
+ .dev_groups = powercap_groups,
+};
+
+struct powercap_zone *powercap_register_zone(
+ struct powercap_zone *power_zone,
+ struct powercap_control_type *control_type,
+ const char *name,
+ struct powercap_zone *parent,
+ const struct powercap_zone_ops *ops,
+ int nr_constraints,
+ struct powercap_zone_constraint_ops *const_ops)
+{
+ int result;
+ int nr_attrs;
+
+ if (!name || !control_type || !ops ||
+ nr_constraints > MAX_CONSTRAINTS_PER_ZONE ||
+ (!ops->get_energy_uj && !ops->get_power_uw) ||
+ !control_type_valid(control_type))
+ return ERR_PTR(-EINVAL);
+
+ if (power_zone) {
+ if (!ops->release)
+ return ERR_PTR(-EINVAL);
+ memset(power_zone, 0, sizeof(*power_zone));
+ } else {
+ power_zone = kzalloc(sizeof(*power_zone), GFP_KERNEL);
+ if (!power_zone)
+ return ERR_PTR(-ENOMEM);
+ power_zone->allocated = true;
+ }
+ power_zone->ops = ops;
+ power_zone->control_type_inst = control_type;
+ if (!parent) {
+ power_zone->dev.parent = &control_type->dev;
+ power_zone->parent_idr = &control_type->idr;
+ } else {
+ power_zone->dev.parent = &parent->dev;
+ power_zone->parent_idr = &parent->idr;
+ }
+ power_zone->dev.class = &powercap_class;
+
+ mutex_lock(&control_type->lock);
+ /* Using idr to get the unique id */
+ result = idr_alloc(power_zone->parent_idr, NULL, 0, 0, GFP_KERNEL);
+ if (result < 0)
+ goto err_idr_alloc;
+
+ power_zone->id = result;
+ idr_init(&power_zone->idr);
+ power_zone->name = kstrdup(name, GFP_KERNEL);
+ if (!power_zone->name)
+ goto err_name_alloc;
+ dev_set_name(&power_zone->dev, "%s:%x",
+ dev_name(power_zone->dev.parent),
+ power_zone->id);
+ power_zone->constraints = kzalloc(sizeof(*power_zone->constraints) *
+ nr_constraints, GFP_KERNEL);
+ if (!power_zone->constraints)
+ goto err_const_alloc;
+
+ nr_attrs = nr_constraints * POWERCAP_CONSTRAINTS_ATTRS +
+ POWERCAP_ZONE_MAX_ATTRS + 1;
+ power_zone->zone_dev_attrs = kzalloc(sizeof(void *) *
+ nr_attrs, GFP_KERNEL);
+ if (!power_zone->zone_dev_attrs)
+ goto err_attr_alloc;
+ create_power_zone_common_attributes(power_zone);
+ result = create_constraints(power_zone, nr_constraints, const_ops);
+ if (result)
+ goto err_dev_ret;
+
+ power_zone->zone_dev_attrs[power_zone->zone_attr_count] = NULL;
+ power_zone->dev_zone_attr_group.attrs = power_zone->zone_dev_attrs;
+ power_zone->dev_attr_groups[0] = &power_zone->dev_zone_attr_group;
+ power_zone->dev_attr_groups[1] = NULL;
+ power_zone->dev.groups = power_zone->dev_attr_groups;
+ result = device_register(&power_zone->dev);
+ if (result)
+ goto err_dev_ret;
+
+ control_type->nr_zones++;
+ mutex_unlock(&control_type->lock);
+
+ return power_zone;
+
+err_dev_ret:
+ kfree(power_zone->zone_dev_attrs);
+err_attr_alloc:
+ kfree(power_zone->constraints);
+err_const_alloc:
+ kfree(power_zone->name);
+err_name_alloc:
+ idr_remove(power_zone->parent_idr, power_zone->id);
+err_idr_alloc:
+ if (power_zone->allocated)
+ kfree(power_zone);
+ mutex_unlock(&control_type->lock);
+
+ return ERR_PTR(result);
+}
+EXPORT_SYMBOL_GPL(powercap_register_zone);
+
+int powercap_unregister_zone(struct powercap_control_type *control_type,
+ struct powercap_zone *power_zone)
+{
+ if (!power_zone || !control_type)
+ return -EINVAL;
+
+ mutex_lock(&control_type->lock);
+ control_type->nr_zones--;
+ mutex_unlock(&control_type->lock);
+
+ device_unregister(&power_zone->dev);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(powercap_unregister_zone);
+
+struct powercap_control_type *powercap_register_control_type(
+ struct powercap_control_type *control_type,
+ const char *name,
+ const struct powercap_control_type_ops *ops)
+{
+ int result;
+
+ if (!name)
+ return ERR_PTR(-EINVAL);
+ if (control_type) {
+ if (!ops || !ops->release)
+ return ERR_PTR(-EINVAL);
+ memset(control_type, 0, sizeof(*control_type));
+ } else {
+ control_type = kzalloc(sizeof(*control_type), GFP_KERNEL);
+ if (!control_type)
+ return ERR_PTR(-ENOMEM);
+ control_type->allocated = true;
+ }
+ mutex_init(&control_type->lock);
+ control_type->ops = ops;
+ INIT_LIST_HEAD(&control_type->node);
+ control_type->dev.class = &powercap_class;
+ dev_set_name(&control_type->dev, name);
+ result = device_register(&control_type->dev);
+ if (result) {
+ if (control_type->allocated)
+ kfree(control_type);
+ return ERR_PTR(result);
+ }
+ idr_init(&control_type->idr);
+
+ mutex_lock(&powercap_cntrl_list_lock);
+ list_add_tail(&control_type->node, &powercap_cntrl_list);
+ mutex_unlock(&powercap_cntrl_list_lock);
+
+ return control_type;
+}
+EXPORT_SYMBOL_GPL(powercap_register_control_type);
+
+int powercap_unregister_control_type(struct powercap_control_type *control_type)
+{
+ struct powercap_control_type *pos = NULL;
+
+ if (control_type->nr_zones) {
+ dev_err(&control_type->dev, "Zones of this type still not freed\n");
+ return -EINVAL;
+ }
+ mutex_lock(&powercap_cntrl_list_lock);
+ list_for_each_entry(pos, &powercap_cntrl_list, node) {
+ if (pos == control_type) {
+ list_del(&control_type->node);
+ mutex_unlock(&powercap_cntrl_list_lock);
+ device_unregister(&control_type->dev);
+ return 0;
+ }
+ }
+ mutex_unlock(&powercap_cntrl_list_lock);
+
+ return -ENODEV;
+}
+EXPORT_SYMBOL_GPL(powercap_unregister_control_type);
+
+static int __init powercap_init(void)
+{
+ int result = 0;
+
+ result = seed_constraint_attributes();
+ if (result)
+ return result;
+
+ result = class_register(&powercap_class);
+
+ return result;
+}
+
+device_initcall(powercap_init);
+
+MODULE_DESCRIPTION("PowerCap sysfs Driver");
+MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>");
+MODULE_LICENSE("GPL v2");
struct of_regulator_match **da9063_reg_matches)
{
da9063_reg_matches = NULL;
- return PTR_ERR(-ENODEV);
+ return ERR_PTR(-ENODEV);
}
#endif
#define SMPS_CTRL_MODE_ECO 0x02
#define SMPS_CTRL_MODE_PWM 0x03
-/* These values are derived from the data sheet. And are the number of steps
- * where there is a voltage change, the ranges at beginning and end of register
- * max/min values where there are no change are ommitted.
- *
- * So they are basically (maxV-minV)/stepV
- */
-#define PALMAS_SMPS_NUM_VOLTAGES 117
+#define PALMAS_SMPS_NUM_VOLTAGES 122
#define PALMAS_SMPS10_NUM_VOLTAGES 2
#define PALMAS_LDO_NUM_VOLTAGES 50
pmic->desc[id].min_uV = 900000;
pmic->desc[id].uV_step = 50000;
pmic->desc[id].linear_min_sel = 1;
+ pmic->desc[id].enable_time = 500;
pmic->desc[id].vsel_reg =
PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
palmas_regs_info[id].vsel_addr);
pmic->desc[id].min_uV = 450000;
pmic->desc[id].uV_step = 25000;
}
+
+ /* LOD6 in vibrator mode will have enable time 2000us */
+ if (pdata && pdata->ldo6_vibrator &&
+ (id == PALMAS_REG_LDO6))
+ pmic->desc[id].enable_time = 2000;
} else {
pmic->desc[id].n_voltages = 1;
pmic->desc[id].ops = &palmas_ops_extreg;
ti_abb_rmw(regs->opp_sel_mask, info->opp_sel, regs->control_reg,
abb->base);
- /* program LDO VBB vset override if needed */
- if (abb->ldo_base)
+ /*
+ * program LDO VBB vset override if needed for !bypass mode
+ * XXX: Do not switch sequence - for !bypass, LDO override reset *must*
+ * be performed *before* switch to bias mode else VBB glitches.
+ */
+ if (abb->ldo_base && info->opp_sel != TI_ABB_NOMINAL_OPP)
ti_abb_program_ldovbb(dev, abb, info);
/* Initiate ABB ldo change */
if (ret)
goto out;
+ /*
+ * Reset LDO VBB vset override bypass mode
+ * XXX: Do not switch sequence - for bypass, LDO override reset *must*
+ * be performed *after* switch to bypass else VBB glitches.
+ */
+ if (abb->ldo_base && info->opp_sel == TI_ABB_NOMINAL_OPP)
+ ti_abb_program_ldovbb(dev, abb, info);
+
out:
return ret;
}
*/
static const struct regulator_linear_range wm831x_gp_ldo_ranges[] = {
- { .min_uV = 900000, .max_uV = 1650000, .min_sel = 0, .max_sel = 14,
+ { .min_uV = 900000, .max_uV = 1600000, .min_sel = 0, .max_sel = 14,
.uV_step = 50000 },
{ .min_uV = 1700000, .max_uV = 3300000, .min_sel = 15, .max_sel = 31,
.uV_step = 100000 },
*/
static const struct regulator_linear_range wm831x_aldo_ranges[] = {
- { .min_uV = 1000000, .max_uV = 1650000, .min_sel = 0, .max_sel = 12,
+ { .min_uV = 1000000, .max_uV = 1600000, .min_sel = 0, .max_sel = 12,
.uV_step = 50000 },
{ .min_uV = 1700000, .max_uV = 3500000, .min_sel = 13, .max_sel = 31,
.uV_step = 100000 },
}
static const struct regulator_linear_range wm8350_ldo_ranges[] = {
- { .min_uV = 900000, .max_uV = 1750000, .min_sel = 0, .max_sel = 15,
+ { .min_uV = 900000, .max_uV = 1650000, .min_sel = 0, .max_sel = 15,
.uV_step = 50000 },
{ .min_uV = 1800000, .max_uV = 3300000, .min_sel = 16, .max_sel = 31,
.uV_step = 100000 },
int intensity = 0;
int r0_perm;
int nr_tracks;
+ int use_prefix;
startdev = dasd_alias_get_start_dev(base);
if (!startdev)
intensity = fdata->intensity;
}
+ use_prefix = base_priv->features.feature[8] & 0x01;
+
switch (intensity) {
case 0x00: /* Normal format */
case 0x08: /* Normal format, use cdl. */
cplength = 2 + (rpt*nr_tracks);
- datasize = sizeof(struct PFX_eckd_data) +
- sizeof(struct LO_eckd_data) +
- rpt * nr_tracks * sizeof(struct eckd_count);
+ if (use_prefix)
+ datasize = sizeof(struct PFX_eckd_data) +
+ sizeof(struct LO_eckd_data) +
+ rpt * nr_tracks * sizeof(struct eckd_count);
+ else
+ datasize = sizeof(struct DE_eckd_data) +
+ sizeof(struct LO_eckd_data) +
+ rpt * nr_tracks * sizeof(struct eckd_count);
break;
case 0x01: /* Write record zero and format track. */
case 0x09: /* Write record zero and format track, use cdl. */
cplength = 2 + rpt * nr_tracks;
- datasize = sizeof(struct PFX_eckd_data) +
- sizeof(struct LO_eckd_data) +
- sizeof(struct eckd_count) +
- rpt * nr_tracks * sizeof(struct eckd_count);
+ if (use_prefix)
+ datasize = sizeof(struct PFX_eckd_data) +
+ sizeof(struct LO_eckd_data) +
+ sizeof(struct eckd_count) +
+ rpt * nr_tracks * sizeof(struct eckd_count);
+ else
+ datasize = sizeof(struct DE_eckd_data) +
+ sizeof(struct LO_eckd_data) +
+ sizeof(struct eckd_count) +
+ rpt * nr_tracks * sizeof(struct eckd_count);
break;
case 0x04: /* Invalidate track. */
case 0x0c: /* Invalidate track, use cdl. */
cplength = 3;
- datasize = sizeof(struct PFX_eckd_data) +
- sizeof(struct LO_eckd_data) +
- sizeof(struct eckd_count);
+ if (use_prefix)
+ datasize = sizeof(struct PFX_eckd_data) +
+ sizeof(struct LO_eckd_data) +
+ sizeof(struct eckd_count);
+ else
+ datasize = sizeof(struct DE_eckd_data) +
+ sizeof(struct LO_eckd_data) +
+ sizeof(struct eckd_count);
break;
default:
dev_warn(&startdev->cdev->dev,
switch (intensity & ~0x08) {
case 0x00: /* Normal format. */
- prefix(ccw++, (struct PFX_eckd_data *) data,
- fdata->start_unit, fdata->stop_unit,
- DASD_ECKD_CCW_WRITE_CKD, base, startdev);
- /* grant subsystem permission to format R0 */
- if (r0_perm)
- ((struct PFX_eckd_data *)data)
- ->define_extent.ga_extended |= 0x04;
- data += sizeof(struct PFX_eckd_data);
+ if (use_prefix) {
+ prefix(ccw++, (struct PFX_eckd_data *) data,
+ fdata->start_unit, fdata->stop_unit,
+ DASD_ECKD_CCW_WRITE_CKD, base, startdev);
+ /* grant subsystem permission to format R0 */
+ if (r0_perm)
+ ((struct PFX_eckd_data *)data)
+ ->define_extent.ga_extended |= 0x04;
+ data += sizeof(struct PFX_eckd_data);
+ } else {
+ define_extent(ccw++, (struct DE_eckd_data *) data,
+ fdata->start_unit, fdata->stop_unit,
+ DASD_ECKD_CCW_WRITE_CKD, startdev);
+ /* grant subsystem permission to format R0 */
+ if (r0_perm)
+ ((struct DE_eckd_data *) data)
+ ->ga_extended |= 0x04;
+ data += sizeof(struct DE_eckd_data);
+ }
ccw[-1].flags |= CCW_FLAG_CC;
locate_record(ccw++, (struct LO_eckd_data *) data,
fdata->start_unit, 0, rpt*nr_tracks,
data += sizeof(struct LO_eckd_data);
break;
case 0x01: /* Write record zero + format track. */
- prefix(ccw++, (struct PFX_eckd_data *) data,
- fdata->start_unit, fdata->stop_unit,
- DASD_ECKD_CCW_WRITE_RECORD_ZERO,
- base, startdev);
- data += sizeof(struct PFX_eckd_data);
+ if (use_prefix) {
+ prefix(ccw++, (struct PFX_eckd_data *) data,
+ fdata->start_unit, fdata->stop_unit,
+ DASD_ECKD_CCW_WRITE_RECORD_ZERO,
+ base, startdev);
+ data += sizeof(struct PFX_eckd_data);
+ } else {
+ define_extent(ccw++, (struct DE_eckd_data *) data,
+ fdata->start_unit, fdata->stop_unit,
+ DASD_ECKD_CCW_WRITE_RECORD_ZERO, startdev);
+ data += sizeof(struct DE_eckd_data);
+ }
ccw[-1].flags |= CCW_FLAG_CC;
locate_record(ccw++, (struct LO_eckd_data *) data,
fdata->start_unit, 0, rpt * nr_tracks + 1,
data += sizeof(struct LO_eckd_data);
break;
case 0x04: /* Invalidate track. */
- prefix(ccw++, (struct PFX_eckd_data *) data,
- fdata->start_unit, fdata->stop_unit,
- DASD_ECKD_CCW_WRITE_CKD, base, startdev);
- data += sizeof(struct PFX_eckd_data);
+ if (use_prefix) {
+ prefix(ccw++, (struct PFX_eckd_data *) data,
+ fdata->start_unit, fdata->stop_unit,
+ DASD_ECKD_CCW_WRITE_CKD, base, startdev);
+ data += sizeof(struct PFX_eckd_data);
+ } else {
+ define_extent(ccw++, (struct DE_eckd_data *) data,
+ fdata->start_unit, fdata->stop_unit,
+ DASD_ECKD_CCW_WRITE_CKD, startdev);
+ data += sizeof(struct DE_eckd_data);
+ }
ccw[-1].flags |= CCW_FLAG_CC;
locate_record(ccw++, (struct LO_eckd_data *) data,
fdata->start_unit, 0, 1,
timeout = 0;
if (timer_pending(&sclp_request_timer)) {
/* Get timeout TOD value */
- timeout = get_tod_clock() +
+ timeout = get_tod_clock_fast() +
sclp_tod_from_jiffies(sclp_request_timer.expires -
jiffies);
}
while (sclp_running_state != sclp_running_state_idle) {
/* Check for expired request timer */
if (timer_pending(&sclp_request_timer) &&
- get_tod_clock() > timeout &&
+ get_tod_clock_fast() > timeout &&
del_timer(&sclp_request_timer))
sclp_request_timer.function(sclp_request_timer.data);
cpu_relax();
if (sccb->header.response_code != 0x20)
return 0;
- if (sccb->sclp_send_mask & (EVTYP_MSG_MASK | EVTYP_PMSGCMD_MASK))
- return 1;
- return 0;
+ if (!(sccb->sclp_send_mask & (EVTYP_OPCMD_MASK | EVTYP_PMSGCMD_MASK)))
+ return 0;
+ if (!(sccb->sclp_receive_mask & (EVTYP_MSG_MASK | EVTYP_PMSGCMD_MASK)))
+ return 0;
+ return 1;
}
bool __init sclp_has_vt220(void)
struct winsize ws;
screen = tty3270_alloc_screen(tp->n_rows, tp->n_cols);
- if (!screen)
+ if (IS_ERR(screen))
return;
/* Switch to new output size */
spin_lock_bh(&tp->view.lock);
int ret;
dev_num = iminor(inode);
- if (dev_num > MAXMINOR)
+ if (dev_num >= MAXMINOR)
return -ENODEV;
logptr = &sys_ser[dev_num];
atomic_inc(&chpid_reset_count);
}
/* Wait for machine check for all channel paths. */
- timeout = get_tod_clock() + (RCHP_TIMEOUT << 12);
+ timeout = get_tod_clock_fast() + (RCHP_TIMEOUT << 12);
while (atomic_read(&chpid_reset_count) != 0) {
- if (get_tod_clock() > timeout)
+ if (get_tod_clock_fast() > timeout)
break;
cpu_relax();
}
retries++;
if (!start_time) {
- start_time = get_tod_clock();
+ start_time = get_tod_clock_fast();
goto again;
}
- if ((get_tod_clock() - start_time) < QDIO_BUSY_BIT_PATIENCE)
+ if (get_tod_clock_fast() - start_time < QDIO_BUSY_BIT_PATIENCE)
goto again;
}
if (retries) {
int count, stop;
unsigned char state = 0;
- q->timestamp = get_tod_clock();
+ q->timestamp = get_tod_clock_fast();
/*
* Don't check 128 buffers, as otherwise qdio_inbound_q_moved
* At this point we know, that inbound first_to_check
* has (probably) not moved (see qdio_inbound_processing).
*/
- if (get_tod_clock() > q->u.in.timestamp + QDIO_INPUT_THRESHOLD) {
+ if (get_tod_clock_fast() > q->u.in.timestamp + QDIO_INPUT_THRESHOLD) {
DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "in done:%02x",
q->first_to_check);
return 1;
int count, stop;
unsigned char state = 0;
- q->timestamp = get_tod_clock();
+ q->timestamp = get_tod_clock_fast();
if (need_siga_sync(q))
if (((queue_type(q) != QDIO_IQDIO_QFMT) &&
while ((pci_device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC,
PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER,
pci_device)) != NULL) {
- struct blogic_adapter *adapter = adapter;
+ struct blogic_adapter *host_adapter = adapter;
struct blogic_adapter_info adapter_info;
enum blogic_isa_ioport mod_ioaddr_req;
unsigned char bus;
known and enabled, note that the particular Standard ISA I/O
Address should not be probed.
*/
- adapter->io_addr = io_addr;
- blogic_intreset(adapter);
- if (blogic_cmd(adapter, BLOGIC_INQ_PCI_INFO, NULL, 0,
+ host_adapter->io_addr = io_addr;
+ blogic_intreset(host_adapter);
+ if (blogic_cmd(host_adapter, BLOGIC_INQ_PCI_INFO, NULL, 0,
&adapter_info, sizeof(adapter_info)) ==
sizeof(adapter_info)) {
if (adapter_info.isa_port < 6)
I/O Address assigned at system initialization.
*/
mod_ioaddr_req = BLOGIC_IO_DISABLE;
- blogic_cmd(adapter, BLOGIC_MOD_IOADDR, &mod_ioaddr_req,
+ blogic_cmd(host_adapter, BLOGIC_MOD_IOADDR, &mod_ioaddr_req,
sizeof(mod_ioaddr_req), NULL, 0);
/*
For the first MultiMaster Host Adapter enumerated,
fetch_localram.offset = BLOGIC_AUTOSCSI_BASE + 45;
fetch_localram.count = sizeof(autoscsi_byte45);
- blogic_cmd(adapter, BLOGIC_FETCH_LOCALRAM,
+ blogic_cmd(host_adapter, BLOGIC_FETCH_LOCALRAM,
&fetch_localram, sizeof(fetch_localram),
&autoscsi_byte45,
sizeof(autoscsi_byte45));
- blogic_cmd(adapter, BLOGIC_GET_BOARD_ID, NULL, 0, &id,
- sizeof(id));
+ blogic_cmd(host_adapter, BLOGIC_GET_BOARD_ID, NULL, 0,
+ &id, sizeof(id));
if (id.fw_ver_digit1 == '5')
force_scan_order =
autoscsi_byte45.force_scan_order;
* | Device Discovery | 0x2095 | 0x2020-0x2022, |
* | | | 0x2011-0x2012, |
* | | | 0x2016 |
- * | Queue Command and IO tracing | 0x3058 | 0x3006-0x300b |
+ * | Queue Command and IO tracing | 0x3059 | 0x3006-0x300b |
* | | | 0x3027-0x3028 |
* | | | 0x303d-0x3041 |
* | | | 0x302d,0x3033 |
que = MSW(sts->handle);
req = ha->req_q_map[que];
+ /* Check for invalid queue pointer */
+ if (req == NULL ||
+ que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
+ ql_dbg(ql_dbg_io, vha, 0x3059,
+ "Invalid status handle (0x%x): Bad req pointer. req=%p, "
+ "que=%u.\n", sts->handle, req, que);
+ return;
+ }
+
/* Validate handle. */
if (handle < req->num_outstanding_cmds)
sp = req->outstanding_cmds[handle];
gd->events |= DISK_EVENT_MEDIA_CHANGE;
}
+ blk_pm_runtime_init(sdp->request_queue, dev);
add_disk(gd);
if (sdkp->capacity)
sd_dif_config_host(sdkp);
sd_printk(KERN_NOTICE, sdkp, "Attached SCSI %sdisk\n",
sdp->removable ? "removable " : "");
- blk_pm_runtime_init(sdp->request_queue, dev);
scsi_autopm_put_device(sdp);
put_device(&sdkp->dev);
}
/* Initialize the hardware */
ret = clk_prepare_enable(clk);
if (ret)
- goto out_unmap_regs;
+ goto out_free_irq;
spi_writel(as, CR, SPI_BIT(SWRST));
spi_writel(as, CR, SPI_BIT(SWRST)); /* AT91SAM9263 Rev B workaround */
if (as->caps.has_wdrbt) {
spi_writel(as, CR, SPI_BIT(SWRST));
spi_writel(as, CR, SPI_BIT(SWRST)); /* AT91SAM9263 Rev B workaround */
clk_disable_unprepare(clk);
+out_free_irq:
free_irq(irq, master);
out_unmap_regs:
iounmap(as->regs);
dev_name(&pdev->dev), hw);
if (ret) {
dev_err(&pdev->dev, "Can't request IRQ\n");
- clk_put(hw->spi_clk);
goto clk_out;
}
gpio_free(hw->chipselect[i]);
spi_master_put(master);
- kfree(master);
return ret;
}
gpio_free(hw->chipselect[i]);
spi_unregister_master(master);
- kfree(master);
return 0;
}
master->bus_num = bus_num;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_err(&pdev->dev, "can't get platform resource\n");
- ret = -EINVAL;
- goto out_master_put;
- }
-
dspi->base = devm_ioremap_resource(&pdev->dev, res);
- if (!dspi->base) {
- ret = -EINVAL;
+ if (IS_ERR(dspi->base)) {
+ ret = PTR_ERR(dspi->base);
goto out_master_put;
}
psc_num = master->bus_num;
snprintf(clk_name, sizeof(clk_name), "psc%d_mclk", psc_num);
clk = devm_clk_get(dev, clk_name);
- if (IS_ERR(clk))
+ if (IS_ERR(clk)) {
+ ret = PTR_ERR(clk);
goto free_irq;
+ }
ret = clk_prepare_enable(clk);
if (ret)
goto free_irq;
if (pm_runtime_suspended(&drv_data->pdev->dev))
return IRQ_NONE;
- sccr1_reg = read_SSCR1(reg);
+ /*
+ * If the device is not yet in RPM suspended state and we get an
+ * interrupt that is meant for another device, check if status bits
+ * are all set to one. That means that the device is already
+ * powered off.
+ */
status = read_SSSR(reg);
+ if (status == ~0)
+ return IRQ_NONE;
+
+ sccr1_reg = read_SSCR1(reg);
/* Ignore possible writes if we don't need to write */
if (!(sccr1_reg & SSCR1_TIE))
S3C64XX_SPI_INT_TX_OVERRUN_EN | S3C64XX_SPI_INT_TX_UNDERRUN_EN,
sdd->regs + S3C64XX_SPI_INT_EN);
+ pm_runtime_enable(&pdev->dev);
+
if (spi_register_master(master)) {
dev_err(&pdev->dev, "cannot register SPI master\n");
ret = -EBUSY;
mem_res,
sdd->rx_dma.dmach, sdd->tx_dma.dmach);
- pm_runtime_enable(&pdev->dev);
-
return 0;
err3:
goto error1;
}
+ pm_runtime_enable(&pdev->dev);
+
master->num_chipselect = 1;
master->bus_num = pdev->id;
master->setup = hspi_setup;
goto error1;
}
- pm_runtime_enable(&pdev->dev);
-
return 0;
error1:
static int spi_drv_probe(struct device *dev)
{
const struct spi_driver *sdrv = to_spi_driver(dev->driver);
+ struct spi_device *spi = to_spi_device(dev);
+ int ret;
+
+ acpi_dev_pm_attach(&spi->dev, true);
+ ret = sdrv->probe(spi);
+ if (ret)
+ acpi_dev_pm_detach(&spi->dev, true);
- return sdrv->probe(to_spi_device(dev));
+ return ret;
}
static int spi_drv_remove(struct device *dev)
{
const struct spi_driver *sdrv = to_spi_driver(dev->driver);
+ struct spi_device *spi = to_spi_device(dev);
+ int ret;
+
+ ret = sdrv->remove(spi);
+ acpi_dev_pm_detach(&spi->dev, true);
- return sdrv->remove(to_spi_device(dev));
+ return ret;
}
static void spi_drv_shutdown(struct device *dev)
return AE_OK;
}
+ adev->power.flags.ignore_parent = true;
strlcpy(spi->modalias, dev_name(&adev->dev), sizeof(spi->modalias));
if (spi_add_device(spi)) {
+ adev->power.flags.ignore_parent = false;
dev_err(&master->dev, "failed to add SPI device %s from ACPI\n",
dev_name(&adev->dev));
spi_dev_put(spi);
{
const struct ni_65xx_board *board = comedi_board(dev);
struct ni_65xx_private *devpriv = dev->private;
- unsigned base_bitfield_channel;
- const unsigned max_ports_per_bitfield = 5;
+ int base_bitfield_channel;
unsigned read_bits = 0;
- unsigned j;
+ int last_port_offset = ni_65xx_port_by_channel(s->n_chan - 1);
+ int port_offset;
base_bitfield_channel = CR_CHAN(insn->chanspec);
- for (j = 0; j < max_ports_per_bitfield; ++j) {
- const unsigned port_offset =
- ni_65xx_port_by_channel(base_bitfield_channel) + j;
- const unsigned port =
- sprivate(s)->base_port + port_offset;
- unsigned base_port_channel;
+ for (port_offset = ni_65xx_port_by_channel(base_bitfield_channel);
+ port_offset <= last_port_offset; port_offset++) {
+ unsigned port = sprivate(s)->base_port + port_offset;
+ int base_port_channel = port_offset * ni_65xx_channels_per_port;
unsigned port_mask, port_data, port_read_bits;
- int bitshift;
- if (port >= ni_65xx_total_num_ports(board))
+ int bitshift = base_port_channel - base_bitfield_channel;
+
+ if (bitshift >= 32)
break;
- base_port_channel = port_offset * ni_65xx_channels_per_port;
port_mask = data[0];
port_data = data[1];
- bitshift = base_port_channel - base_bitfield_channel;
- if (bitshift >= 32 || bitshift <= -32)
- break;
if (bitshift > 0) {
port_mask >>= bitshift;
port_data >>= bitshift;
struct list_head encoder_list;
struct list_head connector_list;
struct mutex mutex;
- int references;
int pipes;
struct drm_fbdev_cma *fbhelper;
};
}
}
- imxdrm->references++;
-
return imxdrm->drm;
unwind_crtc:
list_for_each_entry(enc, &imxdrm->encoder_list, list)
module_put(enc->owner);
- imxdrm->references--;
-
mutex_unlock(&imxdrm->mutex);
}
EXPORT_SYMBOL_GPL(imx_drm_device_put);
mutex_lock(&imxdrm->mutex);
- if (imxdrm->references) {
+ if (imxdrm->drm->open_count) {
ret = -EBUSY;
goto err_busy;
}
mutex_lock(&imxdrm->mutex);
- if (imxdrm->references) {
+ if (imxdrm->drm->open_count) {
ret = -EBUSY;
goto err_busy;
}
mutex_lock(&imxdrm->mutex);
- if (imxdrm->references) {
+ if (imxdrm->drm->open_count) {
ret = -EBUSY;
goto err_busy;
}
if (nob > ulsm_nob)
return (-EINVAL);
- if (copy_to_user (ulsm, lsm, sizeof(ulsm)))
+ if (copy_to_user (ulsm, lsm, sizeof(*ulsm)))
return (-EFAULT);
for (i = 0; i < lsm->lsm_stripe_count; i++) {
config USB_MSI3101
tristate "Mirics MSi3101 SDR Dongle"
depends on USB && VIDEO_DEV && VIDEO_V4L2
+ select VIDEOBUF2_VMALLOC
/* Absolute min and max number of buffers available for mmap() */
*nbuffers = 32;
*nplanes = 1;
- sizes[0] = PAGE_ALIGN(3 * 3072); /* 3 * 768 * 4 */
+ /*
+ * 3, wMaxPacketSize 3x 1024 bytes
+ * 504, max IQ sample pairs per 1024 frame
+ * 2, two samples, I and Q
+ * 4, 32-bit float
+ */
+ sizes[0] = PAGE_ALIGN(3 * 504 * 2 * 4); /* = 12096 */
dev_dbg(&s->udev->dev, "%s: nbuffers=%d sizes[0]=%d\n",
__func__, *nbuffers, sizes[0]);
return 0;
f->frequency * 625UL / 10UL);
}
-const struct v4l2_ioctl_ops msi3101_ioctl_ops = {
+static const struct v4l2_ioctl_ops msi3101_ioctl_ops = {
.vidioc_querycap = msi3101_querycap,
.vidioc_enum_input = msi3101_enum_input,
}
}
- memset(usb, 0, sizeof(usb));
+ memset(usb, 0, sizeof(*usb));
usb->init_flags = flags;
/* Initialize the USB state structure */
sscanf(data, "pts =%d, start =%d, stop =%d", &psd_pts, &psd_start, &psd_stop);
}
- _rtw_memset(data, '\0', sizeof(data));
+ _rtw_memset(data, '\0', sizeof(*data));
i = psd_start;
while (i < psd_stop) {
u8 cut_ver, fab_ver;
/* Init Value */
- _rtw_memset(dm_odm, 0, sizeof(dm_odm));
+ _rtw_memset(dm_odm, 0, sizeof(*dm_odm));
dm_odm->Adapter = Adapter;
stop = strncmp(extra, "stop", 4);
sscanf(extra, "count =%d, pkt", &count);
- _rtw_memset(extra, '\0', sizeof(extra));
+ _rtw_memset(extra, '\0', sizeof(*extra));
if (stop == 0) {
bStartTest = 0; /* To set Stop */
/*=== Customer ID ===*/
/****** 8188EUS ********/
{USB_DEVICE(0x8179, 0x07B8)}, /* Abocom - Abocom */
+ {USB_DEVICE(0x2001, 0x330F)}, /* DLink DWA-125 REV D1 */
{} /* Terminating entry */
};
/* Get TCB and local buffer from common pool.
(It is shared by CmdQ, MgntQ, and USB coalesce DataQ) */
skb = dev_alloc_skb(USB_HWDESC_HEADER_LEN + DataLen + 4);
+ if (!skb)
+ return RT_STATUS_FAILURE;
memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
tcb_desc->queue_index = TXCMD_QUEUE;
if (pMgmt == NULL)
return -EFAULT;
+ if (!(pDevice->flags & DEVICE_FLAGS_OPENED))
+ return -ENODEV;
+
buf = kzalloc(sizeof(struct viawget_wpa_param), GFP_KERNEL);
if (buf == NULL)
return -ENOMEM;
memset(pMgmt->abyCurrBSSID, 0, 6);
pMgmt->eCurrState = WMAC_STATE_IDLE;
+ pDevice->flags &= ~DEVICE_FLAGS_OPENED;
+
device_free_tx_bufs(pDevice);
device_free_rx_bufs(pDevice);
device_free_int_bufs(pDevice);
usb_free_urb(pDevice->pInterruptURB);
BSSvClearNodeDBTable(pDevice, 0);
- pDevice->flags &=(~DEVICE_FLAGS_OPENED);
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "device_close2 \n");
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"GetFreeContext()\n");
for (ii = 0; ii < pDevice->cbTD; ii++) {
+ if (!pDevice->apTD[ii])
+ return NULL;
pContext = pDevice->apTD[ii];
if (pContext->bBoolInUse == false) {
pContext->bBoolInUse = true;
static void iscsit_ack_from_expstatsn(struct iscsi_conn *conn, u32 exp_statsn)
{
- struct iscsi_cmd *cmd;
+ LIST_HEAD(ack_list);
+ struct iscsi_cmd *cmd, *cmd_p;
conn->exp_statsn = exp_statsn;
return;
spin_lock_bh(&conn->cmd_lock);
- list_for_each_entry(cmd, &conn->conn_cmd_list, i_conn_node) {
+ list_for_each_entry_safe(cmd, cmd_p, &conn->conn_cmd_list, i_conn_node) {
spin_lock(&cmd->istate_lock);
if ((cmd->i_state == ISTATE_SENT_STATUS) &&
iscsi_sna_lt(cmd->stat_sn, exp_statsn)) {
cmd->i_state = ISTATE_REMOVE;
spin_unlock(&cmd->istate_lock);
- iscsit_add_cmd_to_immediate_queue(cmd, conn,
- cmd->i_state);
+ list_move_tail(&cmd->i_conn_node, &ack_list);
continue;
}
spin_unlock(&cmd->istate_lock);
}
spin_unlock_bh(&conn->cmd_lock);
+
+ list_for_each_entry_safe(cmd, cmd_p, &ack_list, i_conn_node) {
+ list_del(&cmd->i_conn_node);
+ iscsit_free_cmd(cmd, false);
+ }
}
static int iscsit_allocate_iovecs(struct iscsi_cmd *cmd)
*/
alloc_tags:
tag_num = max_t(u32, ISCSIT_MIN_TAGS, queue_depth);
- tag_num += ISCSIT_EXTRA_TAGS;
+ tag_num += (tag_num / 2) + ISCSIT_EXTRA_TAGS;
tag_size = sizeof(struct iscsi_cmd) + conn->conn_transport->priv_size;
ret = transport_alloc_session_tags(sess->se_sess, tag_num, tag_size);
* Fallthrough
*/
case ISCSI_OP_SCSI_TMFUNC:
- rc = transport_generic_free_cmd(&cmd->se_cmd, 1);
+ rc = transport_generic_free_cmd(&cmd->se_cmd, shutdown);
if (!rc && shutdown && se_cmd && se_cmd->se_sess) {
__iscsit_free_cmd(cmd, true, shutdown);
target_put_sess_cmd(se_cmd->se_sess, se_cmd);
se_cmd = &cmd->se_cmd;
__iscsit_free_cmd(cmd, true, shutdown);
- rc = transport_generic_free_cmd(&cmd->se_cmd, 1);
+ rc = transport_generic_free_cmd(&cmd->se_cmd, shutdown);
if (!rc && shutdown && se_cmd->se_sess) {
__iscsit_free_cmd(cmd, true, shutdown);
target_put_sess_cmd(se_cmd->se_sess, se_cmd);
* pSCSI Host ID and enable for phba mode
*/
sh = scsi_host_lookup(phv->phv_host_id);
- if (IS_ERR(sh)) {
+ if (!sh) {
pr_err("pSCSI: Unable to locate SCSI Host for"
" phv_host_id: %d\n", phv->phv_host_id);
- return PTR_ERR(sh);
+ return -EINVAL;
}
phv->phv_lld_host = sh;
sh = phv->phv_lld_host;
} else {
sh = scsi_host_lookup(pdv->pdv_host_id);
- if (IS_ERR(sh)) {
+ if (!sh) {
pr_err("pSCSI: Unable to locate"
" pdv_host_id: %d\n", pdv->pdv_host_id);
- return PTR_ERR(sh);
+ return -EINVAL;
}
}
} else {
sectors, cmd->se_dev->dev_attrib.max_write_same_len);
return TCM_INVALID_CDB_FIELD;
}
+ /* We always have ANC_SUP == 0 so setting ANCHOR is always an error */
+ if (flags[0] & 0x10) {
+ pr_warn("WRITE SAME with ANCHOR not supported\n");
+ return TCM_INVALID_CDB_FIELD;
+ }
/*
* Special case for WRITE_SAME w/ UNMAP=1 that ends up getting
* translated into block discard requests within backend code.
{
struct se_device *dev = cmd->se_dev;
- cmd->se_cmd_flags |= SCF_COMPARE_AND_WRITE_POST;
+ /*
+ * Only set SCF_COMPARE_AND_WRITE_POST to force a response fall-through
+ * within target_complete_ok_work() if the command was successfully
+ * sent to the backend driver.
+ */
+ spin_lock_irq(&cmd->t_state_lock);
+ if ((cmd->transport_state & CMD_T_SENT) && !cmd->scsi_status)
+ cmd->se_cmd_flags |= SCF_COMPARE_AND_WRITE_POST;
+ spin_unlock_irq(&cmd->t_state_lock);
+
/*
* Unlock ->caw_sem originally obtained during sbc_compare_and_write()
* before the original READ I/O submission.
{
struct se_device *dev = cmd->se_dev;
struct scatterlist *write_sg = NULL, *sg;
- unsigned char *buf, *addr;
+ unsigned char *buf = NULL, *addr;
struct sg_mapping_iter m;
unsigned int offset = 0, len;
unsigned int nlbas = cmd->t_task_nolb;
*/
if (!cmd->t_data_sg || !cmd->t_bidi_data_sg)
return TCM_NO_SENSE;
+ /*
+ * Immediately exit + release dev->caw_sem if command has already
+ * been failed with a non-zero SCSI status.
+ */
+ if (cmd->scsi_status) {
+ pr_err("compare_and_write_callback: non zero scsi_status:"
+ " 0x%02x\n", cmd->scsi_status);
+ goto out;
+ }
buf = kzalloc(cmd->data_length, GFP_KERNEL);
if (!buf) {
cmd->transport_complete_callback = NULL;
return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
}
+ /*
+ * Reset cmd->data_length to individual block_size in order to not
+ * confuse backend drivers that depend on this value matching the
+ * size of the I/O being submitted.
+ */
+ cmd->data_length = cmd->t_task_nolb * dev->dev_attrib.block_size;
ret = cmd->execute_rw(cmd, cmd->t_bidi_data_sg, cmd->t_bidi_data_nents,
DMA_FROM_DEVICE);
{
int rc;
- se_sess->sess_cmd_map = kzalloc(tag_num * tag_size, GFP_KERNEL);
+ se_sess->sess_cmd_map = kzalloc(tag_num * tag_size,
+ GFP_KERNEL | __GFP_NOWARN | __GFP_REPEAT);
if (!se_sess->sess_cmd_map) {
- pr_err("Unable to allocate se_sess->sess_cmd_map\n");
- return -ENOMEM;
+ se_sess->sess_cmd_map = vzalloc(tag_num * tag_size);
+ if (!se_sess->sess_cmd_map) {
+ pr_err("Unable to allocate se_sess->sess_cmd_map\n");
+ return -ENOMEM;
+ }
}
rc = percpu_ida_init(&se_sess->sess_tag_pool, tag_num);
if (rc < 0) {
pr_err("Unable to init se_sess->sess_tag_pool,"
" tag_num: %u\n", tag_num);
- kfree(se_sess->sess_cmd_map);
+ if (is_vmalloc_addr(se_sess->sess_cmd_map))
+ vfree(se_sess->sess_cmd_map);
+ else
+ kfree(se_sess->sess_cmd_map);
se_sess->sess_cmd_map = NULL;
return -ENOMEM;
}
{
if (se_sess->sess_cmd_map) {
percpu_ida_destroy(&se_sess->sess_tag_pool);
- kfree(se_sess->sess_cmd_map);
+ if (is_vmalloc_addr(se_sess->sess_cmd_map))
+ vfree(se_sess->sess_cmd_map);
+ else
+ kfree(se_sess->sess_cmd_map);
}
kmem_cache_free(se_sess_cache, se_sess);
}
mutex_lock(&g_device_mutex);
list_for_each_entry(se_dev, &g_device_list, g_dev_node) {
+ if (!se_dev->dev_attrib.emulate_3pc)
+ continue;
+
memset(&tmp_dev_wwn[0], 0, XCOPY_NAA_IEEE_REGEX_LEN);
target_xcopy_gen_naa_ieee(se_dev, &tmp_dev_wwn[0]);
(unsigned long long)xop->dst_lba);
if (dc != 0) {
- xop->dbl = (desc[29] << 16) & 0xff;
- xop->dbl |= (desc[30] << 8) & 0xff;
+ xop->dbl = (desc[29] & 0xff) << 16;
+ xop->dbl |= (desc[30] & 0xff) << 8;
xop->dbl |= desc[31] & 0xff;
pr_debug("XCOPY seg desc 0x02: DC=1 w/ dbl: %u\n", xop->dbl);
struct se_cmd se_cmd;
struct xcopy_op *xcopy_op;
struct completion xpt_passthrough_sem;
+ unsigned char sense_buffer[TRANSPORT_SENSE_BUFFER];
};
static struct se_port xcopy_pt_port;
pr_debug("target_xcopy_issue_pt_cmd(): SCSI status: 0x%02x\n",
se_cmd->scsi_status);
- return 0;
+
+ return (se_cmd->scsi_status) ? -EINVAL : 0;
}
static int target_xcopy_read_source(
(unsigned long long)src_lba, src_sectors, length);
transport_init_se_cmd(se_cmd, &xcopy_pt_tfo, NULL, length,
- DMA_FROM_DEVICE, 0, NULL);
+ DMA_FROM_DEVICE, 0, &xpt_cmd->sense_buffer[0]);
xop->src_pt_cmd = xpt_cmd;
rc = target_xcopy_setup_pt_cmd(xpt_cmd, xop, src_dev, &cdb[0],
(unsigned long long)dst_lba, dst_sectors, length);
transport_init_se_cmd(se_cmd, &xcopy_pt_tfo, NULL, length,
- DMA_TO_DEVICE, 0, NULL);
+ DMA_TO_DEVICE, 0, &xpt_cmd->sense_buffer[0]);
xop->dst_pt_cmd = xpt_cmd;
rc = target_xcopy_setup_pt_cmd(xpt_cmd, xop, dst_dev, &cdb[0],
sense_reason_t target_do_xcopy(struct se_cmd *se_cmd)
{
+ struct se_device *dev = se_cmd->se_dev;
struct xcopy_op *xop = NULL;
unsigned char *p = NULL, *seg_desc;
unsigned int list_id, list_id_usage, sdll, inline_dl, sa;
+ sense_reason_t ret = TCM_INVALID_PARAMETER_LIST;
int rc;
unsigned short tdll;
+ if (!dev->dev_attrib.emulate_3pc) {
+ pr_err("EXTENDED_COPY operation explicitly disabled\n");
+ return TCM_UNSUPPORTED_SCSI_OPCODE;
+ }
+
sa = se_cmd->t_task_cdb[1] & 0x1f;
if (sa != 0x00) {
pr_err("EXTENDED_COPY(LID4) not supported\n");
return TCM_UNSUPPORTED_SCSI_OPCODE;
}
+ xop = kzalloc(sizeof(struct xcopy_op), GFP_KERNEL);
+ if (!xop) {
+ pr_err("Unable to allocate xcopy_op\n");
+ return TCM_OUT_OF_RESOURCES;
+ }
+ xop->xop_se_cmd = se_cmd;
+
p = transport_kmap_data_sg(se_cmd);
if (!p) {
pr_err("transport_kmap_data_sg() failed in target_do_xcopy\n");
+ kfree(xop);
return TCM_OUT_OF_RESOURCES;
}
list_id = p[0];
- if (list_id != 0x00) {
- pr_err("XCOPY with non zero list_id: 0x%02x\n", list_id);
- goto out;
- }
- list_id_usage = (p[1] & 0x18);
+ list_id_usage = (p[1] & 0x18) >> 3;
+
/*
* Determine TARGET DESCRIPTOR LIST LENGTH + SEGMENT DESCRIPTOR LIST LENGTH
*/
goto out;
}
- xop = kzalloc(sizeof(struct xcopy_op), GFP_KERNEL);
- if (!xop) {
- pr_err("Unable to allocate xcopy_op\n");
- goto out;
- }
- xop->xop_se_cmd = se_cmd;
-
pr_debug("Processing XCOPY with list_id: 0x%02x list_id_usage: 0x%02x"
" tdll: %hu sdll: %u inline_dl: %u\n", list_id, list_id_usage,
tdll, sdll, inline_dl);
if (rc <= 0)
goto out;
+ if (xop->src_dev->dev_attrib.block_size !=
+ xop->dst_dev->dev_attrib.block_size) {
+ pr_err("XCOPY: Non matching src_dev block_size: %u + dst_dev"
+ " block_size: %u currently unsupported\n",
+ xop->src_dev->dev_attrib.block_size,
+ xop->dst_dev->dev_attrib.block_size);
+ xcopy_pt_undepend_remotedev(xop);
+ ret = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ goto out;
+ }
+
pr_debug("XCOPY: Processed %d target descriptors, length: %u\n", rc,
rc * XCOPY_TARGET_DESC_LEN);
seg_desc = &p[16];
if (p)
transport_kunmap_data_sg(se_cmd);
kfree(xop);
- return TCM_INVALID_CDB_FIELD;
+ return ret;
}
static sense_reason_t target_rcr_operating_parameters(struct se_cmd *se_cmd)
config CPU_THERMAL
bool "generic cpu cooling support"
depends on CPU_FREQ
- select CPU_FREQ_TABLE
help
This implements the generic cpu cooling mechanism through frequency
reduction. An ACPI version of this already exists
}
th_zone = conf->pzone_data;
- if (th_zone->therm_dev)
- return;
if (th_zone->bind == false) {
for (i = 0; i < th_zone->cool_dev_size; i++) {
con = readl(data->base + reg->tmu_ctrl);
+ if (pdata->test_mux)
+ con |= (pdata->test_mux << reg->test_mux_addr_shift);
+
if (pdata->reference_voltage) {
con &= ~(reg->buf_vref_sel_mask << reg->buf_vref_sel_shift);
con |= pdata->reference_voltage << reg->buf_vref_sel_shift;
},
{
.compatible = "samsung,exynos4412-tmu",
- .data = (void *)EXYNOS5250_TMU_DRV_DATA,
+ .data = (void *)EXYNOS4412_TMU_DRV_DATA,
},
{
.compatible = "samsung,exynos5250-tmu",
if (ret)
return ret;
- if (pdata->type == SOC_ARCH_EXYNOS ||
- pdata->type == SOC_ARCH_EXYNOS4210 ||
- pdata->type == SOC_ARCH_EXYNOS5440)
+ if (pdata->type == SOC_ARCH_EXYNOS4210 ||
+ pdata->type == SOC_ARCH_EXYNOS4412 ||
+ pdata->type == SOC_ARCH_EXYNOS5250 ||
+ pdata->type == SOC_ARCH_EXYNOS5440)
data->soc = pdata->type;
else {
ret = -EINVAL;
enum soc_type {
SOC_ARCH_EXYNOS4210 = 1,
- SOC_ARCH_EXYNOS,
+ SOC_ARCH_EXYNOS4412,
+ SOC_ARCH_EXYNOS5250,
SOC_ARCH_EXYNOS5440,
};
* @triminfo_reload_shift: shift of triminfo reload enable bit in triminfo_ctrl
reg.
* @tmu_ctrl: TMU main controller register.
+ * @test_mux_addr_shift: shift bits of test mux address.
* @buf_vref_sel_shift: shift bits of reference voltage in tmu_ctrl register.
* @buf_vref_sel_mask: mask bits of reference voltage in tmu_ctrl register.
* @therm_trip_mode_shift: shift bits of tripping mode in tmu_ctrl register.
u32 triminfo_reload_shift;
u32 tmu_ctrl;
+ u32 test_mux_addr_shift;
u32 buf_vref_sel_shift;
u32 buf_vref_sel_mask;
u32 therm_trip_mode_shift;
* @first_point_trim: temp value of the first point trimming
* @second_point_trim: temp value of the second point trimming
* @default_temp_offset: default temperature offset in case of no trimming
+ * @test_mux; information if SoC supports test MUX
* @cal_type: calibration type for temperature
* @cal_mode: calibration mode for temperature
* @freq_clip_table: Table representing frequency reduction percentage.
u8 first_point_trim;
u8 second_point_trim;
u8 default_temp_offset;
+ u8 test_mux;
enum calibration_type cal_type;
enum calibration_mode cal_mode;
};
#endif
-#if defined(CONFIG_SOC_EXYNOS5250) || defined(CONFIG_SOC_EXYNOS4412)
-static const struct exynos_tmu_registers exynos5250_tmu_registers = {
+#if defined(CONFIG_SOC_EXYNOS4412) || defined(CONFIG_SOC_EXYNOS5250)
+static const struct exynos_tmu_registers exynos4412_tmu_registers = {
.triminfo_data = EXYNOS_TMU_REG_TRIMINFO,
.triminfo_25_shift = EXYNOS_TRIMINFO_25_SHIFT,
.triminfo_85_shift = EXYNOS_TRIMINFO_85_SHIFT,
.triminfo_ctrl = EXYNOS_TMU_TRIMINFO_CON,
.triminfo_reload_shift = EXYNOS_TRIMINFO_RELOAD_SHIFT,
.tmu_ctrl = EXYNOS_TMU_REG_CONTROL,
+ .test_mux_addr_shift = EXYNOS4412_MUX_ADDR_SHIFT,
.buf_vref_sel_shift = EXYNOS_TMU_REF_VOLTAGE_SHIFT,
.buf_vref_sel_mask = EXYNOS_TMU_REF_VOLTAGE_MASK,
.therm_trip_mode_shift = EXYNOS_TMU_TRIP_MODE_SHIFT,
.emul_time_mask = EXYNOS_EMUL_TIME_MASK,
};
-#define EXYNOS5250_TMU_DATA \
+#define EXYNOS4412_TMU_DATA \
.threshold_falling = 10, \
.trigger_levels[0] = 85, \
.trigger_levels[1] = 103, \
.temp_level = 103, \
}, \
.freq_tab_count = 2, \
- .type = SOC_ARCH_EXYNOS, \
- .registers = &exynos5250_tmu_registers, \
+ .registers = &exynos4412_tmu_registers, \
.features = (TMU_SUPPORT_EMULATION | TMU_SUPPORT_TRIM_RELOAD | \
TMU_SUPPORT_FALLING_TRIP | TMU_SUPPORT_READY_STATUS | \
TMU_SUPPORT_EMUL_TIME)
+#endif
+#if defined(CONFIG_SOC_EXYNOS4412)
+struct exynos_tmu_init_data const exynos4412_default_tmu_data = {
+ .tmu_data = {
+ {
+ EXYNOS4412_TMU_DATA,
+ .type = SOC_ARCH_EXYNOS4412,
+ .test_mux = EXYNOS4412_MUX_ADDR_VALUE,
+ },
+ },
+ .tmu_count = 1,
+};
+#endif
+
+#if defined(CONFIG_SOC_EXYNOS5250)
struct exynos_tmu_init_data const exynos5250_default_tmu_data = {
.tmu_data = {
- { EXYNOS5250_TMU_DATA },
+ {
+ EXYNOS4412_TMU_DATA,
+ .type = SOC_ARCH_EXYNOS5250,
+ },
},
.tmu_count = 1,
};
#define EXYNOS_MAX_TRIGGER_PER_REG 4
+/* Exynos4412 specific */
+#define EXYNOS4412_MUX_ADDR_VALUE 6
+#define EXYNOS4412_MUX_ADDR_SHIFT 20
+
/*exynos5440 specific registers*/
#define EXYNOS5440_TMU_S0_7_TRIM 0x000
#define EXYNOS5440_TMU_S0_7_CTRL 0x020
#define EXYNOS4210_TMU_DRV_DATA (NULL)
#endif
-#if (defined(CONFIG_SOC_EXYNOS5250) || defined(CONFIG_SOC_EXYNOS4412))
+#if defined(CONFIG_SOC_EXYNOS4412)
+extern struct exynos_tmu_init_data const exynos4412_default_tmu_data;
+#define EXYNOS4412_TMU_DRV_DATA (&exynos4412_default_tmu_data)
+#else
+#define EXYNOS4412_TMU_DRV_DATA (NULL)
+#endif
+
+#if defined(CONFIG_SOC_EXYNOS5250)
extern struct exynos_tmu_init_data const exynos5250_default_tmu_data;
#define EXYNOS5250_TMU_DRV_DATA (&exynos5250_default_tmu_data)
#else
INIT_LIST_HEAD(&hwmon->tz_list);
strlcpy(hwmon->type, tz->type, THERMAL_NAME_LENGTH);
- hwmon->device = hwmon_device_register(&tz->device);
+ hwmon->device = hwmon_device_register(NULL);
if (IS_ERR(hwmon->device)) {
result = PTR_ERR(hwmon->device);
goto free_mem;
} else {
dev_err(bgp->dev,
"Failed to read PCB state. Using defaults\n");
+ ret = 0;
}
}
*temp = ti_thermal_hotspot_temperature(tmp, slope, constant);
int phy_id = topology_physical_package_id(cpu);
struct phy_dev_entry *phdev = pkg_temp_thermal_get_phy_entry(cpu);
bool notify = false;
+ unsigned long flags;
if (!phdev)
return;
- spin_lock(&pkg_work_lock);
+ spin_lock_irqsave(&pkg_work_lock, flags);
++pkg_work_cnt;
if (unlikely(phy_id > max_phy_id)) {
- spin_unlock(&pkg_work_lock);
+ spin_unlock_irqrestore(&pkg_work_lock, flags);
return;
}
pkg_work_scheduled[phy_id] = 0;
- spin_unlock(&pkg_work_lock);
+ spin_unlock_irqrestore(&pkg_work_lock, flags);
enable_pkg_thres_interrupt();
rdmsrl(MSR_IA32_PACKAGE_THERM_STATUS, msr_val);
int thres_count;
u32 eax, ebx, ecx, edx;
u8 *temp;
+ unsigned long flags;
cpuid(6, &eax, &ebx, &ecx, &edx);
thres_count = ebx & 0x07;
goto err_ret_unlock;
}
- spin_lock(&pkg_work_lock);
+ spin_lock_irqsave(&pkg_work_lock, flags);
if (topology_physical_package_id(cpu) > max_phy_id)
max_phy_id = topology_physical_package_id(cpu);
temp = krealloc(pkg_work_scheduled,
(max_phy_id+1) * sizeof(u8), GFP_ATOMIC);
if (!temp) {
- spin_unlock(&pkg_work_lock);
+ spin_unlock_irqrestore(&pkg_work_lock, flags);
err = -ENOMEM;
goto err_ret_free;
}
pkg_work_scheduled = temp;
pkg_work_scheduled[topology_physical_package_id(cpu)] = 0;
- spin_unlock(&pkg_work_lock);
+ spin_unlock_irqrestore(&pkg_work_lock, flags);
phy_dev_entry->phys_proc_id = topology_physical_package_id(cpu);
phy_dev_entry->first_cpu = cpu;
.name = "xenboot",
.write = xenboot_write_console,
.flags = CON_PRINTBUFFER | CON_BOOT | CON_ANYTIME,
+ .index = -1,
};
#endif /* CONFIG_EARLY_PRINTK */
canon_change = (old->c_lflag ^ tty->termios.c_lflag) & ICANON;
if (canon_change) {
bitmap_zero(ldata->read_flags, N_TTY_BUF_SIZE);
- ldata->line_start = 0;
- ldata->canon_head = ldata->read_tail;
+ ldata->line_start = ldata->canon_head = ldata->read_tail;
ldata->erasing = 0;
ldata->lnext = 0;
}
if (!input_available_p(tty, 0)) {
if (test_bit(TTY_OTHER_CLOSED, &tty->flags)) {
- retval = -EIO;
- break;
- }
- if (tty_hung_up_p(file))
- break;
- if (!timeout)
- break;
- if (file->f_flags & O_NONBLOCK) {
- retval = -EAGAIN;
- break;
- }
- if (signal_pending(current)) {
- retval = -ERESTARTSYS;
- break;
- }
- n_tty_set_room(tty);
- up_read(&tty->termios_rwsem);
+ up_read(&tty->termios_rwsem);
+ tty_flush_to_ldisc(tty);
+ down_read(&tty->termios_rwsem);
+ if (!input_available_p(tty, 0)) {
+ retval = -EIO;
+ break;
+ }
+ } else {
+ if (tty_hung_up_p(file))
+ break;
+ if (!timeout)
+ break;
+ if (file->f_flags & O_NONBLOCK) {
+ retval = -EAGAIN;
+ break;
+ }
+ if (signal_pending(current)) {
+ retval = -ERESTARTSYS;
+ break;
+ }
+ n_tty_set_room(tty);
+ up_read(&tty->termios_rwsem);
- timeout = schedule_timeout(timeout);
+ timeout = schedule_timeout(timeout);
- down_read(&tty->termios_rwsem);
- continue;
+ down_read(&tty->termios_rwsem);
+ continue;
+ }
}
__set_current_state(TASK_RUNNING);
sport->devdata = of_id->data;
- if (of_device_is_stdout_path(np))
- add_preferred_console(imx_reg.cons->name, sport->port.line, 0);
-
return 0;
}
#else
static int dma_push_rx(struct eg20t_port *priv, int size)
{
- struct tty_struct *tty;
int room;
struct uart_port *port = &priv->port;
struct tty_port *tport = &port->state->port;
- port = &priv->port;
- tty = tty_port_tty_get(tport);
- if (!tty) {
- dev_dbg(priv->port.dev, "%s:tty is busy now", __func__);
- return 0;
- }
-
room = tty_buffer_request_room(tport, size);
if (room < size)
dev_warn(port->dev, "Rx overrun: dropping %u bytes\n",
size - room);
if (!room)
- return room;
+ return 0;
tty_insert_flip_string(tport, sg_virt(&priv->sg_rx), size);
port->icount.rx += room;
- tty_kref_put(tty);
return room;
}
if (tty == NULL) {
for (i = 0; error_msg[i] != NULL; i++)
dev_err(&priv->pdev->dev, error_msg[i]);
+ } else {
+ tty_kref_put(tty);
}
}
static void tegra_uart_stop_rx(struct uart_port *u)
{
struct tegra_uart_port *tup = to_tegra_uport(u);
- struct tty_struct *tty = tty_port_tty_get(&tup->uport.state->port);
+ struct tty_struct *tty;
struct tty_port *port = &u->state->port;
struct dma_tx_state state;
unsigned long ier;
if (!tup->rx_in_progress)
return;
+ tty = tty_port_tty_get(&tup->uport.state->port);
+
tegra_uart_wait_sym_time(tup, 1); /* wait a character interval */
ier = tup->ier_shadow;
if (!mmres || !irqres)
return -ENODEV;
- if (np)
+ if (np) {
port = of_alias_get_id(np, "serial");
if (port >= VT8500_MAX_PORTS)
port = -1;
- else
+ } else {
port = -1;
+ }
if (port < 0) {
/* calculate the port id */
}
return 0;
case TCFLSH:
+ retval = tty_check_change(tty);
+ if (retval)
+ return retval;
return __tty_perform_flush(tty, arg);
default:
/* Try the mode commands */
config USB_CHIPIDEA
tristate "ChipIdea Highspeed Dual Role Controller"
- depends on (USB_EHCI_HCD && USB_GADGET) || (USB_EHCI_HCD && !USB_GADGET) || (!USB_EHCI_HCD && USB_GADGET)
+ depends on ((USB_EHCI_HCD && USB_GADGET) || (USB_EHCI_HCD && !USB_GADGET) || (!USB_EHCI_HCD && USB_GADGET)) && HAS_DMA
help
Say Y here if your system has a dual role high speed USB
controller based on ChipIdea silicon IP. Currently, only the
if (ret) {
dev_err(&pdev->dev, "usbmisc init failed, ret=%d\n",
ret);
- goto err_clk;
+ goto err_phy;
}
}
dev_err(&pdev->dev,
"Can't register ci_hdrc platform device, err=%d\n",
ret);
- goto err_clk;
+ goto err_phy;
}
if (data->usbmisc_data) {
disable_device:
ci_hdrc_remove_device(data->ci_pdev);
+err_phy:
+ if (data->phy)
+ usb_phy_shutdown(data->phy);
err_clk:
clk_disable_unprepare(data->clk);
return ret;
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0829),
.driver_data = (kernel_ulong_t)&penwell_pci_platdata,
},
- { 0, 0, 0, 0, 0, 0, 0 /* end: all zeroes */ }
+ {
+ /* Intel Clovertrail */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe006),
+ .driver_data = (kernel_ulong_t)&penwell_pci_platdata,
+ },
+ { 0 } /* end: all zeroes */
};
MODULE_DEVICE_TABLE(pci, ci_hdrc_pci_id_table);
dbg_remove_files(ci);
free_irq(ci->irq, ci);
ci_role_destroy(ci);
+ kfree(ci->hw_bank.regmap);
return 0;
}
{
struct usb_hcd *hcd = ci->hcd;
- usb_remove_hcd(hcd);
- usb_put_hcd(hcd);
+ if (hcd) {
+ usb_remove_hcd(hcd);
+ usb_put_hcd(hcd);
+ }
if (ci->platdata->reg_vbus)
regulator_disable(ci->platdata->reg_vbus);
}
for (i = 0; i < ci->hw_ep_max; i++) {
struct ci_hw_ep *hwep = &ci->ci_hw_ep[i];
+ if (hwep->pending_td)
+ free_pending_td(hwep);
dma_pool_free(ci->qh_pool, hwep->qh.ptr, hwep->qh.dma);
}
}
if (ci->platdata->notify_event)
ci->platdata->notify_event(ci,
CI_HDRC_CONTROLLER_STOPPED_EVENT);
- ci->driver = NULL;
spin_unlock_irqrestore(&ci->lock, flags);
_gadget_stop_activity(&ci->gadget);
spin_lock_irqsave(&ci->lock, flags);
pm_runtime_put(&ci->gadget.dev);
}
+ ci->driver = NULL;
spin_unlock_irqrestore(&ci->lock, flags);
return 0;
if ((index & ~USB_DIR_IN) == 0)
return 0;
ret = findintfep(ps->dev, index);
+ if (ret < 0) {
+ /*
+ * Some not fully compliant Win apps seem to get
+ * index wrong and have the endpoint number here
+ * rather than the endpoint address (with the
+ * correct direction). Win does let this through,
+ * so we'll not reject it here but leave it to
+ * the device to not break KVM. But we warn.
+ */
+ ret = findintfep(ps->dev, index ^ 0x80);
+ if (ret >= 0)
+ dev_info(&ps->dev->dev,
+ "%s: process %i (%s) requesting ep %02x but needs %02x\n",
+ __func__, task_pid_nr(current),
+ current->comm, index, index ^ 0x80);
+ }
if (ret >= 0)
ret = checkintf(ps, ret);
break;
unsigned long long u2_pel;
int ret;
+ if (udev->state != USB_STATE_CONFIGURED)
+ return 0;
+
/* Convert SEL and PEL stored in ns to us */
u1_sel = DIV_ROUND_UP(udev->u1_params.sel, 1000);
u1_pel = DIV_ROUND_UP(udev->u1_params.pel, 1000);
/* Alcor Micro Corp. Hub */
{ USB_DEVICE(0x058f, 0x9254), .driver_info = USB_QUIRK_RESET_RESUME },
+ /* MicroTouch Systems touchscreen */
+ { USB_DEVICE(0x0596, 0x051e), .driver_info = USB_QUIRK_RESET_RESUME },
+
/* appletouch */
{ USB_DEVICE(0x05ac, 0x021a), .driver_info = USB_QUIRK_RESET_RESUME },
/* Broadcom BCM92035DGROM BT dongle */
{ USB_DEVICE(0x0a5c, 0x2021), .driver_info = USB_QUIRK_RESET_RESUME },
+ /* MAYA44USB sound device */
+ { USB_DEVICE(0x0a92, 0x0091), .driver_info = USB_QUIRK_RESET_RESUME },
+
/* Action Semiconductor flash disk */
{ USB_DEVICE(0x10d6, 0x2200), .driver_info =
USB_QUIRK_STRING_FETCH_255 },
#define PCI_VENDOR_ID_SYNOPSYS 0x16c3
#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 0xabcd
#define PCI_DEVICE_ID_INTEL_BYT 0x0f37
+#define PCI_DEVICE_ID_INTEL_MRFLD 0x119e
struct dwc3_pci {
struct device *dev;
PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3),
},
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BYT), },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MRFLD), },
{ } /* Terminating Entry */
};
MODULE_DEVICE_TABLE(pci, dwc3_pci_id_table);
struct ffs_file_perms perms;
umode_t root_mode;
const char *dev_name;
- union {
- /* set by ffs_fs_mount(), read by ffs_sb_fill() */
- void *private_data;
- /* set by ffs_sb_fill(), read by ffs_fs_mount */
- struct ffs_data *ffs_data;
- };
+ struct ffs_data *ffs_data;
};
static int ffs_sb_fill(struct super_block *sb, void *_data, int silent)
{
struct ffs_sb_fill_data *data = _data;
struct inode *inode;
- struct ffs_data *ffs;
+ struct ffs_data *ffs = data->ffs_data;
ENTER();
- /* Initialise data */
- ffs = ffs_data_new();
- if (unlikely(!ffs))
- goto Enomem;
-
ffs->sb = sb;
- ffs->dev_name = kstrdup(data->dev_name, GFP_KERNEL);
- if (unlikely(!ffs->dev_name))
- goto Enomem;
- ffs->file_perms = data->perms;
- ffs->private_data = data->private_data;
-
- /* used by the caller of this function */
- data->ffs_data = ffs;
-
+ data->ffs_data = NULL;
sb->s_fs_info = ffs;
sb->s_blocksize = PAGE_CACHE_SIZE;
sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
&data->perms);
sb->s_root = d_make_root(inode);
if (unlikely(!sb->s_root))
- goto Enomem;
+ return -ENOMEM;
/* EP0 file */
if (unlikely(!ffs_sb_create_file(sb, "ep0", ffs,
&ffs_ep0_operations, NULL)))
- goto Enomem;
+ return -ENOMEM;
return 0;
-
-Enomem:
- return -ENOMEM;
}
static int ffs_fs_parse_opts(struct ffs_sb_fill_data *data, char *opts)
struct dentry *rv;
int ret;
void *ffs_dev;
+ struct ffs_data *ffs;
ENTER();
if (unlikely(ret < 0))
return ERR_PTR(ret);
+ ffs = ffs_data_new();
+ if (unlikely(!ffs))
+ return ERR_PTR(-ENOMEM);
+ ffs->file_perms = data.perms;
+
+ ffs->dev_name = kstrdup(dev_name, GFP_KERNEL);
+ if (unlikely(!ffs->dev_name)) {
+ ffs_data_put(ffs);
+ return ERR_PTR(-ENOMEM);
+ }
+
ffs_dev = functionfs_acquire_dev_callback(dev_name);
- if (IS_ERR(ffs_dev))
- return ffs_dev;
+ if (IS_ERR(ffs_dev)) {
+ ffs_data_put(ffs);
+ return ERR_CAST(ffs_dev);
+ }
+ ffs->private_data = ffs_dev;
+ data.ffs_data = ffs;
- data.dev_name = dev_name;
- data.private_data = ffs_dev;
rv = mount_nodev(t, flags, &data, ffs_sb_fill);
-
- /* data.ffs_data is set by ffs_sb_fill */
- if (IS_ERR(rv))
+ if (IS_ERR(rv) && data.ffs_data) {
functionfs_release_dev_callback(data.ffs_data);
-
+ ffs_data_put(data.ffs_data);
+ }
return rv;
}
data->raw_descs + ret,
(sizeof data->raw_descs) - ret,
__ffs_func_bind_do_descs, func);
+ if (unlikely(ret < 0))
+ goto error;
}
/*
/*
* probe - binds to the platform device
*/
-static int __init pxa25x_udc_probe(struct platform_device *pdev)
+static int pxa25x_udc_probe(struct platform_device *pdev)
{
struct pxa25x_udc *dev = &memory;
int retval, irq;
pullup_off();
}
-static int __exit pxa25x_udc_remove(struct platform_device *pdev)
+static int pxa25x_udc_remove(struct platform_device *pdev)
{
struct pxa25x_udc *dev = platform_get_drvdata(pdev);
static struct platform_driver udc_driver = {
.shutdown = pxa25x_udc_shutdown,
- .remove = __exit_p(pxa25x_udc_remove),
+ .probe = pxa25x_udc_probe,
+ .remove = pxa25x_udc_remove,
.suspend = pxa25x_udc_suspend,
.resume = pxa25x_udc_resume,
.driver = {
},
};
-module_platform_driver_probe(udc_driver, pxa25x_udc_probe);
+module_platform_driver(udc_driver);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_AUTHOR("Frank Becker, Robert Schwebel, David Brownell");
* FIFO, requests of >512 cause the endpoint to get stuck with a
* fragment of the end of the transfer in it.
*/
- if (can_write > 512)
+ if (can_write > 512 && !periodic)
can_write = 512;
/*
}
/* Enable USB controller, 83xx or 8536 */
- if (pdata->have_sysif_regs)
+ if (pdata->have_sysif_regs && pdata->controller_ver < FSL_USB_VER_1_6)
setbits32(hcd->regs + FSL_SOC_USB_CTRL, 0x4);
/* Don't need to set host mode here. It will be done by tdi_reset() */
case FSL_USB2_PHY_ULPI:
if (pdata->have_sysif_regs && pdata->controller_ver) {
/* controller version 1.6 or above */
+ clrbits32(non_ehci + FSL_SOC_USB_CTRL, UTMI_PHY_EN);
setbits32(non_ehci + FSL_SOC_USB_CTRL,
- ULPI_PHY_CLK_SEL);
- /*
- * Due to controller issue of PHY_CLK_VALID in ULPI
- * mode, we set USB_CTRL_USB_EN before checking
- * PHY_CLK_VALID, otherwise PHY_CLK_VALID doesn't work.
- */
- clrsetbits_be32(non_ehci + FSL_SOC_USB_CTRL,
- UTMI_PHY_EN, USB_CTRL_USB_EN);
+ ULPI_PHY_CLK_SEL | USB_CTRL_USB_EN);
}
portsc |= PORT_PTS_ULPI;
break;
if (pdata->have_sysif_regs && pdata->controller_ver &&
(phy_mode == FSL_USB2_PHY_ULPI)) {
/* check PHY_CLK_VALID to get phy clk valid */
- if (!spin_event_timeout(in_be32(non_ehci + FSL_SOC_USB_CTRL) &
- PHY_CLK_VALID, FSL_USB_PHY_CLK_TIMEOUT, 0)) {
+ if (!(spin_event_timeout(in_be32(non_ehci + FSL_SOC_USB_CTRL) &
+ PHY_CLK_VALID, FSL_USB_PHY_CLK_TIMEOUT, 0) ||
+ in_be32(non_ehci + FSL_SOC_USB_PRICTRL))) {
printk(KERN_WARNING "fsl-ehci: USB PHY clock invalid\n");
return -EINVAL;
}
.remove = usb_hcd_pci_remove,
.shutdown = usb_hcd_pci_shutdown,
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_PM
.driver = {
.pm = &usb_hcd_pci_pm_ops
},
i = DIV_ROUND_UP(wrap_frame(
cur_frame - urb->start_frame),
urb->interval);
- if (urb->transfer_flags & URB_ISO_ASAP) {
+
+ /* Treat underruns as if URB_ISO_ASAP was set */
+ if ((urb->transfer_flags & URB_ISO_ASAP) ||
+ i >= urb->number_of_packets) {
urb->start_frame = wrap_frame(urb->start_frame
+ i * urb->interval);
i = 0;
- } else if (i >= urb->number_of_packets) {
- ret = -EXDEV;
- goto alloc_dmem_failed;
}
}
}
frame &= ~(ed->interval - 1);
frame |= ed->branch;
urb->start_frame = frame;
+ ed->last_iso = frame + ed->interval * (size - 1);
}
} else if (ed->type == PIPE_ISOCHRONOUS) {
u16 next = ohci_frame_no(ohci) + 1;
u16 frame = ed->last_iso + ed->interval;
+ u16 length = ed->interval * (size - 1);
/* Behind the scheduling threshold? */
if (unlikely(tick_before(frame, next))) {
- /* USB_ISO_ASAP: Round up to the first available slot */
+ /* URB_ISO_ASAP: Round up to the first available slot */
if (urb->transfer_flags & URB_ISO_ASAP) {
frame += (next - frame + ed->interval - 1) &
-ed->interval;
/*
- * Not ASAP: Use the next slot in the stream. If
- * the entire URB falls before the threshold, fail.
+ * Not ASAP: Use the next slot in the stream,
+ * no matter what.
*/
} else {
- if (tick_before(frame + ed->interval *
- (urb->number_of_packets - 1), next)) {
- retval = -EXDEV;
- usb_hcd_unlink_urb_from_ep(hcd, urb);
- goto fail;
- }
-
/*
* Some OHCI hardware doesn't handle late TDs
* correctly. After retiring them it proceeds
urb_priv->td_cnt = DIV_ROUND_UP(
(u16) (next - frame),
ed->interval);
+ if (urb_priv->td_cnt >= urb_priv->length) {
+ ++urb_priv->td_cnt; /* Mark it */
+ ohci_dbg(ohci, "iso underrun %p (%u+%u < %u)\n",
+ urb, frame, length,
+ next);
+ }
}
}
urb->start_frame = frame;
+ ed->last_iso = frame + length;
}
/* fill the TDs and link them to the ed; and
__releases(ohci->lock)
__acquires(ohci->lock)
{
- struct device *dev = ohci_to_hcd(ohci)->self.controller;
+ struct device *dev = ohci_to_hcd(ohci)->self.controller;
+ struct usb_host_endpoint *ep = urb->ep;
+ struct urb_priv *urb_priv;
+
// ASSERT (urb->hcpriv != 0);
+ restart:
urb_free_priv (ohci, urb->hcpriv);
urb->hcpriv = NULL;
if (likely(status == -EINPROGRESS))
ohci->hc_control &= ~(OHCI_CTRL_PLE|OHCI_CTRL_IE);
ohci_writel (ohci, ohci->hc_control, &ohci->regs->control);
}
+
+ /*
+ * An isochronous URB that is sumitted too late won't have any TDs
+ * (marked by the fact that the td_cnt value is larger than the
+ * actual number of TDs). If the next URB on this endpoint is like
+ * that, give it back now.
+ */
+ if (!list_empty(&ep->urb_list)) {
+ urb = list_first_entry(&ep->urb_list, struct urb, urb_list);
+ urb_priv = urb->hcpriv;
+ if (urb_priv->td_cnt > urb_priv->length) {
+ status = 0;
+ goto restart;
+ }
+ }
}
td->hwCBP = cpu_to_hc32 (ohci, data & 0xFFFFF000);
*ohci_hwPSWp(ohci, td, 0) = cpu_to_hc16 (ohci,
(data & 0x0FFF) | 0xE000);
- td->ed->last_iso = info & 0xffff;
} else {
td->hwCBP = cpu_to_hc32 (ohci, data);
}
urb_priv->td_cnt++;
/* if URB is done, clean up */
- if (urb_priv->td_cnt == urb_priv->length) {
+ if (urb_priv->td_cnt >= urb_priv->length) {
modified = completed = 1;
finish_urb(ohci, urb, 0);
}
urb_priv->td_cnt++;
/* If all this urb's TDs are done, call complete() */
- if (urb_priv->td_cnt == urb_priv->length)
+ if (urb_priv->td_cnt >= urb_priv->length)
finish_urb(ohci, urb, status);
/* clean schedule: unlink EDs that are no longer busy */
* switchable ports.
*/
pci_write_config_dword(xhci_pdev, USB_INTEL_USB3_PSSEN,
- cpu_to_le32(ports_available));
+ ports_available);
pci_read_config_dword(xhci_pdev, USB_INTEL_USB3_PSSEN,
&ports_available);
* host.
*/
pci_write_config_dword(xhci_pdev, USB_INTEL_XUSB2PR,
- cpu_to_le32(ports_available));
+ ports_available);
pci_read_config_dword(xhci_pdev, USB_INTEL_XUSB2PR,
&ports_available);
.remove = usb_hcd_pci_remove,
.shutdown = uhci_shutdown,
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_PM
.driver = {
.pm = &usb_hcd_pci_pm_ops
},
}
/* Fell behind? */
- if (uhci_frame_before_eq(frame, next)) {
+ if (!uhci_frame_before_eq(next, frame)) {
/* USB_ISO_ASAP: Round up to the first available slot */
if (urb->transfer_flags & URB_ISO_ASAP)
-qh->period;
/*
- * Not ASAP: Use the next slot in the stream. If
- * the entire URB falls before the threshold, fail.
+ * Not ASAP: Use the next slot in the stream,
+ * no matter what.
*/
else if (!uhci_frame_before_eq(next,
frame + (urb->number_of_packets - 1) *
qh->period))
- return -EXDEV;
+ dev_dbg(uhci_dev(uhci), "iso underrun %p (%u+%u < %u)\n",
+ urb, frame,
+ (urb->number_of_packets - 1) *
+ qh->period,
+ next);
}
}
if (virt_dev->eps[i].ring && virt_dev->eps[i].ring->dequeue)
xhci_queue_stop_endpoint(xhci, slot_id, i, suspend);
}
- cmd->command_trb = xhci->cmd_ring->enqueue;
+ cmd->command_trb = xhci_find_next_enqueue(xhci->cmd_ring);
list_add_tail(&cmd->cmd_list, &virt_dev->cmd_list);
xhci_queue_stop_endpoint(xhci, slot_id, 0, suspend);
xhci_ring_cmd_db(xhci);
* - Mark a port as being done with device resume,
* and ring the endpoint doorbells.
* - Stop the Synopsys redriver Compliance Mode polling.
+ * - Drop and reacquire the xHCI lock, in order to wait for port resume.
*/
static u32 xhci_get_port_status(struct usb_hcd *hcd,
struct xhci_bus_state *bus_state,
__le32 __iomem **port_array,
- u16 wIndex, u32 raw_port_status)
+ u16 wIndex, u32 raw_port_status,
+ unsigned long flags)
+ __releases(&xhci->lock)
+ __acquires(&xhci->lock)
{
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
u32 status = 0;
return 0xffffffff;
if (time_after_eq(jiffies,
bus_state->resume_done[wIndex])) {
+ int time_left;
+
xhci_dbg(xhci, "Resume USB2 port %d\n",
wIndex + 1);
bus_state->resume_done[wIndex] = 0;
clear_bit(wIndex, &bus_state->resuming_ports);
+
+ set_bit(wIndex, &bus_state->rexit_ports);
xhci_set_link_state(xhci, port_array, wIndex,
XDEV_U0);
- xhci_dbg(xhci, "set port %d resume\n",
- wIndex + 1);
- slot_id = xhci_find_slot_id_by_port(hcd, xhci,
- wIndex + 1);
- if (!slot_id) {
- xhci_dbg(xhci, "slot_id is zero\n");
- return 0xffffffff;
+
+ spin_unlock_irqrestore(&xhci->lock, flags);
+ time_left = wait_for_completion_timeout(
+ &bus_state->rexit_done[wIndex],
+ msecs_to_jiffies(
+ XHCI_MAX_REXIT_TIMEOUT));
+ spin_lock_irqsave(&xhci->lock, flags);
+
+ if (time_left) {
+ slot_id = xhci_find_slot_id_by_port(hcd,
+ xhci, wIndex + 1);
+ if (!slot_id) {
+ xhci_dbg(xhci, "slot_id is zero\n");
+ return 0xffffffff;
+ }
+ xhci_ring_device(xhci, slot_id);
+ } else {
+ int port_status = xhci_readl(xhci,
+ port_array[wIndex]);
+ xhci_warn(xhci, "Port resume took longer than %i msec, port status = 0x%x\n",
+ XHCI_MAX_REXIT_TIMEOUT,
+ port_status);
+ status |= USB_PORT_STAT_SUSPEND;
+ clear_bit(wIndex, &bus_state->rexit_ports);
}
- xhci_ring_device(xhci, slot_id);
+
bus_state->port_c_suspend |= 1 << wIndex;
bus_state->suspended_ports &= ~(1 << wIndex);
} else {
break;
}
status = xhci_get_port_status(hcd, bus_state, port_array,
- wIndex, temp);
+ wIndex, temp, flags);
if (status == 0xffffffff)
goto error;
t1 = xhci_port_state_to_neutral(t1);
if (t1 != t2)
xhci_writel(xhci, t2, port_array[port_index]);
-
- if (hcd->speed != HCD_USB3) {
- /* enable remote wake up for USB 2.0 */
- __le32 __iomem *addr;
- u32 tmp;
-
- /* Get the port power control register address. */
- addr = port_array[port_index] + PORTPMSC;
- tmp = xhci_readl(xhci, addr);
- tmp |= PORT_RWE;
- xhci_writel(xhci, tmp, addr);
- }
}
hcd->state = HC_STATE_SUSPENDED;
bus_state->next_statechange = jiffies + msecs_to_jiffies(10);
xhci_ring_device(xhci, slot_id);
} else
xhci_writel(xhci, temp, port_array[port_index]);
-
- if (hcd->speed != HCD_USB3) {
- /* disable remote wake up for USB 2.0 */
- __le32 __iomem *addr;
- u32 tmp;
-
- /* Add one to the port status register address to get
- * the port power control register address.
- */
- addr = port_array[port_index] + PORTPMSC;
- tmp = xhci_readl(xhci, addr);
- tmp &= ~PORT_RWE;
- xhci_writel(xhci, tmp, addr);
- }
}
(void) xhci_readl(xhci, &xhci->op_regs->command);
for (i = 0; i < USB_MAXCHILDREN; ++i) {
xhci->bus_state[0].resume_done[i] = 0;
xhci->bus_state[1].resume_done[i] = 0;
+ /* Only the USB 2.0 completions will ever be used. */
+ init_completion(&xhci->bus_state[1].rexit_done[i]);
}
if (scratchpad_alloc(xhci, flags))
#define PCI_VENDOR_ID_ETRON 0x1b6f
#define PCI_DEVICE_ID_ASROCK_P67 0x7023
+#define PCI_DEVICE_ID_INTEL_LYNXPOINT_XHCI 0x8c31
+#define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI 0x9c31
+
static const char hcd_name[] = "xhci_hcd";
/* called after powerup, by probe or system-pm "wakeup" */
"QUIRK: Fresco Logic xHC needs configure"
" endpoint cmd after reset endpoint");
}
+ if (pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_PDK &&
+ pdev->revision == 0x4) {
+ xhci->quirks |= XHCI_SLOW_SUSPEND;
+ xhci_dbg_trace(xhci, trace_xhci_dbg_quirks,
+ "QUIRK: Fresco Logic xHC revision %u"
+ "must be suspended extra slowly",
+ pdev->revision);
+ }
/* Fresco Logic confirms: all revisions of this chip do not
* support MSI, even though some of them claim to in their PCI
* capabilities.
xhci->quirks |= XHCI_SPURIOUS_REBOOT;
xhci->quirks |= XHCI_AVOID_BEI;
}
+ if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
+ (pdev->device == PCI_DEVICE_ID_INTEL_LYNXPOINT_XHCI ||
+ pdev->device == PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI)) {
+ /* Workaround for occasional spurious wakeups from S5 (or
+ * any other sleep) on Haswell machines with LPT and LPT-LP
+ * with the new Intel BIOS
+ */
+ xhci->quirks |= XHCI_SPURIOUS_WAKEUP;
+ }
if (pdev->vendor == PCI_VENDOR_ID_ETRON &&
pdev->device == PCI_DEVICE_ID_ASROCK_P67) {
xhci->quirks |= XHCI_RESET_ON_RESUME;
usb_put_hcd(xhci->shared_hcd);
}
usb_hcd_pci_remove(dev);
+
+ /* Workaround for spurious wakeups at shutdown with HSW */
+ if (xhci->quirks & XHCI_SPURIOUS_WAKEUP)
+ pci_set_power_state(dev, PCI_D3hot);
+
kfree(xhci);
}
/* suspend and resume implemented later */
.shutdown = usb_hcd_pci_shutdown,
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_PM
.driver = {
.pm = &usb_hcd_pci_pm_ops
},
return TRB_TYPE_LINK_LE32(link->control);
}
+union xhci_trb *xhci_find_next_enqueue(struct xhci_ring *ring)
+{
+ /* Enqueue pointer can be left pointing to the link TRB,
+ * we must handle that
+ */
+ if (TRB_TYPE_LINK_LE32(ring->enqueue->link.control))
+ return ring->enq_seg->next->trbs;
+ return ring->enqueue;
+}
+
/* Updates trb to point to the next TRB in the ring, and updates seg if the next
* TRB is in a new segment. This does not skip over link TRBs, and it does not
* effect the ring dequeue or enqueue pointers.
/* Otherwise ring the doorbell(s) to restart queued transfers */
ring_doorbell_for_active_rings(xhci, slot_id, ep_index);
}
- ep->stopped_td = NULL;
- ep->stopped_trb = NULL;
+
+ /* Clear stopped_td and stopped_trb if endpoint is not halted */
+ if (!(ep->ep_state & EP_HALTED)) {
+ ep->stopped_td = NULL;
+ ep->stopped_trb = NULL;
+ }
/*
* Drop the lock and complete the URBs in the cancelled TD list.
inc_deq(xhci, xhci->cmd_ring);
return;
}
+ /* There is no command to handle if we get a stop event when the
+ * command ring is empty, event->cmd_trb points to the next
+ * unset command
+ */
+ if (xhci->cmd_ring->dequeue == xhci->cmd_ring->enqueue)
+ return;
}
switch (le32_to_cpu(xhci->cmd_ring->dequeue->generic.field[3])
}
}
+ /*
+ * Check to see if xhci-hub.c is waiting on RExit to U0 transition (or
+ * RExit to a disconnect state). If so, let the the driver know it's
+ * out of the RExit state.
+ */
+ if (!DEV_SUPERSPEED(temp) &&
+ test_and_clear_bit(faked_port_index,
+ &bus_state->rexit_ports)) {
+ complete(&bus_state->rexit_done[faked_port_index]);
+ bogus_port_status = true;
+ goto cleanup;
+ }
+
if (hcd->speed != HCD_USB3)
xhci_test_and_clear_bit(xhci, port_array, faked_port_index,
PORT_PLC);
spin_lock_irq(&xhci->lock);
xhci_halt(xhci);
+ /* Workaround for spurious wakeups at shutdown with HSW */
+ if (xhci->quirks & XHCI_SPURIOUS_WAKEUP)
+ xhci_reset(xhci);
spin_unlock_irq(&xhci->lock);
xhci_cleanup_msix(xhci);
xhci_dbg_trace(xhci, trace_xhci_dbg_init,
"xhci_shutdown completed - status = %x",
xhci_readl(xhci, &xhci->op_regs->status));
+
+ /* Yet another workaround for spurious wakeups at shutdown with HSW */
+ if (xhci->quirks & XHCI_SPURIOUS_WAKEUP)
+ pci_set_power_state(to_pci_dev(hcd->self.controller), PCI_D3hot);
}
#ifdef CONFIG_PM
int xhci_suspend(struct xhci_hcd *xhci)
{
int rc = 0;
+ unsigned int delay = XHCI_MAX_HALT_USEC;
struct usb_hcd *hcd = xhci_to_hcd(xhci);
u32 command;
command = xhci_readl(xhci, &xhci->op_regs->command);
command &= ~CMD_RUN;
xhci_writel(xhci, command, &xhci->op_regs->command);
+
+ /* Some chips from Fresco Logic need an extraordinary delay */
+ delay *= (xhci->quirks & XHCI_SLOW_SUSPEND) ? 10 : 1;
+
if (xhci_handshake(xhci, &xhci->op_regs->status,
- STS_HALT, STS_HALT, XHCI_MAX_HALT_USEC)) {
+ STS_HALT, STS_HALT, delay)) {
xhci_warn(xhci, "WARN: xHC CMD_RUN timeout\n");
spin_unlock_irq(&xhci->lock);
return -ETIMEDOUT;
if (command) {
cmd_completion = command->completion;
cmd_status = &command->status;
- command->command_trb = xhci->cmd_ring->enqueue;
-
- /* Enqueue pointer can be left pointing to the link TRB,
- * we must handle that
- */
- if (TRB_TYPE_LINK_LE32(command->command_trb->link.control))
- command->command_trb =
- xhci->cmd_ring->enq_seg->next->trbs;
-
+ command->command_trb = xhci_find_next_enqueue(xhci->cmd_ring);
list_add_tail(&command->cmd_list, &virt_dev->cmd_list);
} else {
cmd_completion = &virt_dev->cmd_completion;
}
init_completion(cmd_completion);
- cmd_trb = xhci->cmd_ring->dequeue;
+ cmd_trb = xhci_find_next_enqueue(xhci->cmd_ring);
if (!ctx_change)
ret = xhci_queue_configure_endpoint(xhci, in_ctx->dma,
udev->slot_id, must_succeed);
/* Attempt to submit the Reset Device command to the command ring */
spin_lock_irqsave(&xhci->lock, flags);
- reset_device_cmd->command_trb = xhci->cmd_ring->enqueue;
-
- /* Enqueue pointer can be left pointing to the link TRB,
- * we must handle that
- */
- if (TRB_TYPE_LINK_LE32(reset_device_cmd->command_trb->link.control))
- reset_device_cmd->command_trb =
- xhci->cmd_ring->enq_seg->next->trbs;
+ reset_device_cmd->command_trb = xhci_find_next_enqueue(xhci->cmd_ring);
list_add_tail(&reset_device_cmd->cmd_list, &virt_dev->cmd_list);
ret = xhci_queue_reset_device(xhci, slot_id);
union xhci_trb *cmd_trb;
spin_lock_irqsave(&xhci->lock, flags);
- cmd_trb = xhci->cmd_ring->dequeue;
+ cmd_trb = xhci_find_next_enqueue(xhci->cmd_ring);
ret = xhci_queue_slot_control(xhci, TRB_ENABLE_SLOT, 0);
if (ret) {
spin_unlock_irqrestore(&xhci->lock, flags);
slot_ctx->dev_info >> 27);
spin_lock_irqsave(&xhci->lock, flags);
- cmd_trb = xhci->cmd_ring->dequeue;
+ cmd_trb = xhci_find_next_enqueue(xhci->cmd_ring);
ret = xhci_queue_address_device(xhci, virt_dev->in_ctx->dma,
udev->slot_id);
if (ret) {
unsigned long resume_done[USB_MAXCHILDREN];
/* which ports have started to resume */
unsigned long resuming_ports;
+ /* Which ports are waiting on RExit to U0 transition. */
+ unsigned long rexit_ports;
+ struct completion rexit_done[USB_MAXCHILDREN];
};
+
+/*
+ * It can take up to 20 ms to transition from RExit to U0 on the
+ * Intel Lynx Point LP xHCI host.
+ */
+#define XHCI_MAX_REXIT_TIMEOUT (20 * 1000)
+
static inline unsigned int hcd_index(struct usb_hcd *hcd)
{
if (hcd->speed == HCD_USB3)
#define XHCI_COMP_MODE_QUIRK (1 << 14)
#define XHCI_AVOID_BEI (1 << 15)
#define XHCI_PLAT (1 << 16)
+#define XHCI_SLOW_SUSPEND (1 << 17)
+#define XHCI_SPURIOUS_WAKEUP (1 << 18)
unsigned int num_active_eps;
unsigned int limit_active_eps;
/* There are two roothubs to keep track of bus suspend info for */
union xhci_trb *cmd_trb);
void xhci_ring_ep_doorbell(struct xhci_hcd *xhci, unsigned int slot_id,
unsigned int ep_index, unsigned int stream_id);
+union xhci_trb *xhci_find_next_enqueue(struct xhci_ring *ring);
/* xHCI roothub code */
void xhci_set_link_state(struct xhci_hcd *xhci, __le32 __iomem **port_array,
config USB_HSIC_USB3503
tristate "USB3503 HSIC to USB20 Driver"
depends on I2C
- select REGMAP
+ select REGMAP_I2C
help
This option enables support for SMSC USB3503 HSIC to USB 2.0 Driver.
}
+/*
+ * Program the HDRC to start (enable interrupts, dma, etc.).
+ */
+void musb_start(struct musb *musb)
+{
+ void __iomem *regs = musb->mregs;
+ u8 devctl = musb_readb(regs, MUSB_DEVCTL);
+
+ dev_dbg(musb->controller, "<== devctl %02x\n", devctl);
+
+ /* Set INT enable registers, enable interrupts */
+ musb->intrtxe = musb->epmask;
+ musb_writew(regs, MUSB_INTRTXE, musb->intrtxe);
+ musb->intrrxe = musb->epmask & 0xfffe;
+ musb_writew(regs, MUSB_INTRRXE, musb->intrrxe);
+ musb_writeb(regs, MUSB_INTRUSBE, 0xf7);
+
+ musb_writeb(regs, MUSB_TESTMODE, 0);
+
+ /* put into basic highspeed mode and start session */
+ musb_writeb(regs, MUSB_POWER, MUSB_POWER_ISOUPDATE
+ | MUSB_POWER_HSENAB
+ /* ENSUSPEND wedges tusb */
+ /* | MUSB_POWER_ENSUSPEND */
+ );
+
+ musb->is_active = 0;
+ devctl = musb_readb(regs, MUSB_DEVCTL);
+ devctl &= ~MUSB_DEVCTL_SESSION;
+
+ /* session started after:
+ * (a) ID-grounded irq, host mode;
+ * (b) vbus present/connect IRQ, peripheral mode;
+ * (c) peripheral initiates, using SRP
+ */
+ if (musb->port_mode != MUSB_PORT_MODE_HOST &&
+ (devctl & MUSB_DEVCTL_VBUS) == MUSB_DEVCTL_VBUS) {
+ musb->is_active = 1;
+ } else {
+ devctl |= MUSB_DEVCTL_SESSION;
+ }
+
+ musb_platform_enable(musb);
+ musb_writeb(regs, MUSB_DEVCTL, devctl);
+}
+
/*
* Make the HDRC stop (disable interrupts, etc.);
* reversible by musb_start
extern const char musb_driver_name[];
extern void musb_stop(struct musb *musb);
+extern void musb_start(struct musb *musb);
extern void musb_write_fifo(struct musb_hw_ep *ep, u16 len, const u8 *src);
extern void musb_read_fifo(struct musb_hw_ep *ep, u16 len, u8 *dst);
struct dsps_glue *glue;
int ret;
+ if (!strcmp(pdev->name, "musb-hdrc"))
+ return -ENODEV;
+
match = of_match_node(musb_dsps_of_match, pdev->dev.of_node);
if (!match) {
dev_err(&pdev->dev, "fail to get matching of_match struct\n");
musb->g.max_speed = USB_SPEED_HIGH;
musb->g.speed = USB_SPEED_UNKNOWN;
+ MUSB_DEV_MODE(musb);
+ musb->xceiv->otg->default_a = 0;
+ musb->xceiv->state = OTG_STATE_B_IDLE;
+
/* this "gadget" abstracts/virtualizes the controller */
musb->g.name = musb_driver_name;
musb->g.is_otg = 1;
musb->xceiv->state = OTG_STATE_B_IDLE;
spin_unlock_irqrestore(&musb->lock, flags);
+ musb_start(musb);
+
/* REVISIT: funcall to other code, which also
* handles power budgeting ... this way also
* ensures HdrcStart is indirectly called.
#include "musb_core.h"
-/*
-* Program the HDRC to start (enable interrupts, dma, etc.).
-*/
-static void musb_start(struct musb *musb)
-{
- void __iomem *regs = musb->mregs;
- u8 devctl = musb_readb(regs, MUSB_DEVCTL);
-
- dev_dbg(musb->controller, "<== devctl %02x\n", devctl);
-
- /* Set INT enable registers, enable interrupts */
- musb->intrtxe = musb->epmask;
- musb_writew(regs, MUSB_INTRTXE, musb->intrtxe);
- musb->intrrxe = musb->epmask & 0xfffe;
- musb_writew(regs, MUSB_INTRRXE, musb->intrrxe);
- musb_writeb(regs, MUSB_INTRUSBE, 0xf7);
-
- musb_writeb(regs, MUSB_TESTMODE, 0);
-
- /* put into basic highspeed mode and start session */
- musb_writeb(regs, MUSB_POWER, MUSB_POWER_ISOUPDATE
- | MUSB_POWER_HSENAB
- /* ENSUSPEND wedges tusb */
- /* | MUSB_POWER_ENSUSPEND */
- );
-
- musb->is_active = 0;
- devctl = musb_readb(regs, MUSB_DEVCTL);
- devctl &= ~MUSB_DEVCTL_SESSION;
-
- /* session started after:
- * (a) ID-grounded irq, host mode;
- * (b) vbus present/connect IRQ, peripheral mode;
- * (c) peripheral initiates, using SRP
- */
- if (musb->port_mode != MUSB_PORT_MODE_HOST &&
- (devctl & MUSB_DEVCTL_VBUS) == MUSB_DEVCTL_VBUS) {
- musb->is_active = 1;
- } else {
- devctl |= MUSB_DEVCTL_SESSION;
- }
-
- musb_platform_enable(musb);
- musb_writeb(regs, MUSB_DEVCTL, devctl);
-}
-
static void musb_port_suspend(struct musb *musb, bool do_suspend)
{
struct usb_otg *otg = musb->xceiv->otg;
/* platform driver interface */
-static int __init gpio_vbus_probe(struct platform_device *pdev)
+static int gpio_vbus_probe(struct platform_device *pdev)
{
struct gpio_vbus_mach_info *pdata = dev_get_platdata(&pdev->dev);
struct gpio_vbus_data *gpio_vbus;
return err;
}
-static int __exit gpio_vbus_remove(struct platform_device *pdev)
+static int gpio_vbus_remove(struct platform_device *pdev)
{
struct gpio_vbus_data *gpio_vbus = platform_get_drvdata(pdev);
struct gpio_vbus_mach_info *pdata = dev_get_platdata(&pdev->dev);
};
#endif
-/* NOTE: the gpio-vbus device may *NOT* be hotplugged */
-
MODULE_ALIAS("platform:gpio-vbus");
static struct platform_driver gpio_vbus_driver = {
.pm = &gpio_vbus_dev_pm_ops,
#endif
},
- .remove = __exit_p(gpio_vbus_remove),
+ .probe = gpio_vbus_probe,
+ .remove = gpio_vbus_remove,
};
-module_platform_driver_probe(gpio_vbus_driver, gpio_vbus_probe);
+module_platform_driver(gpio_vbus_driver);
MODULE_DESCRIPTION("simple GPIO controlled OTG transceiver driver");
MODULE_AUTHOR("Philipp Zabel");
#define HUAWEI_VENDOR_ID 0x12D1
#define HUAWEI_PRODUCT_E173 0x140C
+#define HUAWEI_PRODUCT_E1750 0x1406
#define HUAWEI_PRODUCT_K4505 0x1464
#define HUAWEI_PRODUCT_K3765 0x1465
#define HUAWEI_PRODUCT_K4605 0x14C6
#define CHANGHONG_VENDOR_ID 0x2077
#define CHANGHONG_PRODUCT_CH690 0x7001
+/* Inovia */
+#define INOVIA_VENDOR_ID 0x20a6
+#define INOVIA_SEW858 0x1105
+
/* some devices interfaces need special handling due to a number of reasons */
enum option_blacklist_reason {
OPTION_BLACKLIST_NONE = 0,
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0x1c23, USB_CLASS_COMM, 0x02, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E173, 0xff, 0xff, 0xff),
.driver_info = (kernel_ulong_t) &net_intf1_blacklist },
+ { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E1750, 0xff, 0xff, 0xff),
+ .driver_info = (kernel_ulong_t) &net_intf2_blacklist },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0x1441, USB_CLASS_COMM, 0x02, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0x1442, USB_CLASS_COMM, 0x02, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K4505, 0xff, 0xff, 0xff),
{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x7A) },
{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x7B) },
{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x7C) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x01) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x02) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x03) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x04) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x05) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x06) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x0A) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x0B) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x0D) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x0E) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x0F) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x10) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x12) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x13) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x14) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x15) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x17) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x18) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x19) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x1A) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x1B) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x1C) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x31) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x32) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x33) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x34) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x35) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x36) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x3A) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x3B) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x3D) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x3E) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x3F) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x48) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x49) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x4A) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x4B) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x4C) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x61) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x62) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x63) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x64) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x65) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x66) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x6A) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x6B) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x6D) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x6E) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x6F) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x78) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x79) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x7A) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x7B) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x7C) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x01) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x02) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x03) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x04) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x05) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x06) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x0A) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x0B) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x0D) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x0E) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x0F) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x10) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x12) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x13) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x14) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x15) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x17) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x18) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x19) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x1A) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x1B) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x1C) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x31) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x32) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x33) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x34) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x35) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x36) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x3A) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x3B) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x3D) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x3E) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x3F) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x48) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x49) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x4A) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x4B) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x4C) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x61) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x62) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x63) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x64) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x65) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x66) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x6A) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x6B) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x6D) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x6E) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x6F) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x78) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x79) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x7A) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x7B) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x7C) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x01) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x02) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x03) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x04) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x05) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x06) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x0A) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x0B) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x0D) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x0E) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x0F) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x10) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x12) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x13) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x14) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x15) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x17) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x18) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x19) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x1A) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x1B) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x1C) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x31) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x32) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x33) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x34) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x35) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x36) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x3A) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x3B) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x3D) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x3E) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x3F) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x48) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x49) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x4A) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x4B) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x4C) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x61) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x62) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x63) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x64) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x65) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x66) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x6A) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x6B) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x6D) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x6E) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x6F) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x78) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x79) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x7A) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x7B) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x7C) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x01) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x02) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x03) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x04) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x05) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x06) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x0A) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x0B) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x0D) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x0E) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x0F) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x10) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x12) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x13) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x14) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x15) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x17) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x18) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x19) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x1A) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x1B) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x1C) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x31) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x32) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x33) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x34) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x35) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x36) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x3A) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x3B) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x3D) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x3E) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x3F) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x48) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x49) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x4A) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x4B) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x4C) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x61) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x62) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x63) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x64) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x65) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x66) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x6A) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x6B) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x6D) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x6E) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x6F) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x78) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x79) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x7A) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x7B) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x7C) },
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) },
{ USB_DEVICE(OLIVETTI_VENDOR_ID, OLIVETTI_PRODUCT_OLICARD100) },
{ USB_DEVICE(OLIVETTI_VENDOR_ID, OLIVETTI_PRODUCT_OLICARD145) },
- { USB_DEVICE(OLIVETTI_VENDOR_ID, OLIVETTI_PRODUCT_OLICARD200) },
+ { USB_DEVICE(OLIVETTI_VENDOR_ID, OLIVETTI_PRODUCT_OLICARD200),
+ .driver_info = (kernel_ulong_t)&net_intf6_blacklist
+ },
{ USB_DEVICE(CELOT_VENDOR_ID, CELOT_PRODUCT_CT680M) }, /* CT-650 CDMA 450 1xEVDO modem */
{ USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, SAMSUNG_PRODUCT_GT_B3730, USB_CLASS_CDC_DATA, 0x00, 0x00) }, /* Samsung GT-B3730 LTE USB modem.*/
{ USB_DEVICE(YUGA_VENDOR_ID, YUGA_PRODUCT_CEM600) },
{ USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x7d03, 0xff, 0x00, 0x00) },
{ USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e01, 0xff, 0xff, 0xff) }, /* D-Link DWM-152/C1 */
{ USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e02, 0xff, 0xff, 0xff) }, /* D-Link DWM-156/C1 */
+ { USB_DEVICE(INOVIA_VENDOR_ID, INOVIA_SEW858) },
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, option_ids);
{ USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) },
{ USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) },
{ USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_PRODUCT_ID) },
+ { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_STRIP_PORT_ID) },
{ USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) },
{ } /* terminator */
};
/*
* Many devices do not respond properly to READ_CAPACITY_16.
* Tell the SCSI layer to try READ_CAPACITY_10 first.
+ * However some USB 3.0 drive enclosures return capacity
+ * modulo 2TB. Those must use READ_CAPACITY_16
*/
- sdev->try_rc_10_first = 1;
+ if (!(us->fflags & US_FL_NEEDS_CAP16))
+ sdev->try_rc_10_first = 1;
/* assume SPC3 or latter devices support sense size > 18 */
if (sdev->scsi_level > SCSI_SPC_2)
USB_SC_DEVICE, USB_PR_DEVICE, NULL,
US_FL_IGNORE_RESIDUE ),
+/* Reported by Oliver Neukum <oneukum@suse.com> */
+UNUSUAL_DEV( 0x174c, 0x55aa, 0x0100, 0x0100,
+ "ASMedia",
+ "AS2105",
+ USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+ US_FL_NEEDS_CAP16),
+
/* Reported by Jesse Feddema <jdfeddema@gmail.com> */
UNUSUAL_DEV( 0x177f, 0x0400, 0x0000, 0x0000,
"Yarvik",
long npage;
int ret = 0, prot = 0;
uint64_t mask;
+ struct vfio_dma *dma = NULL;
+ unsigned long pfn;
end = map->iova + map->size;
}
for (iova = map->iova; iova < end; iova += size, vaddr += size) {
- struct vfio_dma *dma = NULL;
- unsigned long pfn;
long i;
/* Pin a contiguous chunk of memory */
if (npage <= 0) {
WARN_ON(!npage);
ret = (int)npage;
- break;
+ goto out;
}
/* Verify pages are not already mapped */
for (i = 0; i < npage; i++) {
if (iommu_iova_to_phys(iommu->domain,
iova + (i << PAGE_SHIFT))) {
- vfio_unpin_pages(pfn, npage, prot, true);
ret = -EBUSY;
- break;
+ goto out_unpin;
}
}
if (ret) {
if (ret != -EBUSY ||
map_try_harder(iommu, iova, pfn, npage, prot)) {
- vfio_unpin_pages(pfn, npage, prot, true);
- break;
+ goto out_unpin;
}
}
dma = kzalloc(sizeof(*dma), GFP_KERNEL);
if (!dma) {
iommu_unmap(iommu->domain, iova, size);
- vfio_unpin_pages(pfn, npage, prot, true);
ret = -ENOMEM;
- break;
+ goto out_unpin;
}
dma->size = size;
}
}
- if (ret) {
- struct vfio_dma *tmp;
- iova = map->iova;
- size = map->size;
- while ((tmp = vfio_find_dma(iommu, iova, size))) {
- int r = vfio_remove_dma_overlap(iommu, iova,
- &size, tmp);
- if (WARN_ON(r || !size))
- break;
- }
+ WARN_ON(ret);
+ mutex_unlock(&iommu->lock);
+ return ret;
+
+out_unpin:
+ vfio_unpin_pages(pfn, npage, prot, true);
+
+out:
+ iova = map->iova;
+ size = map->size;
+ while ((dma = vfio_find_dma(iommu, iova, size))) {
+ int r = vfio_remove_dma_overlap(iommu, iova,
+ &size, dma);
+ if (WARN_ON(r || !size))
+ break;
}
mutex_unlock(&iommu->lock);
}
se_sess = tv_nexus->tvn_se_sess;
- tag = percpu_ida_alloc(&se_sess->sess_tag_pool, GFP_KERNEL);
+ tag = percpu_ida_alloc(&se_sess->sess_tag_pool, GFP_ATOMIC);
+ if (tag < 0) {
+ pr_err("Unable to obtain tag for tcm_vhost_cmd\n");
+ return ERR_PTR(-ENOMEM);
+ }
+
cmd = &((struct tcm_vhost_cmd *)se_sess->sess_cmd_map)[tag];
sg = cmd->tvc_sgl;
pages = cmd->tvc_upages;
if (data_direction != DMA_NONE) {
ret = vhost_scsi_map_iov_to_sgl(cmd,
&vq->iov[data_first], data_num,
- data_direction == DMA_TO_DEVICE);
+ data_direction == DMA_FROM_DEVICE);
if (unlikely(ret)) {
vq_err(vq, "Failed to map iov to sgl\n");
goto err_free;
#include <asm/backlight.h>
#endif
+static struct list_head backlight_dev_list;
+static struct mutex backlight_dev_list_mutex;
+
static const char *const backlight_types[] = {
[BACKLIGHT_RAW] = "raw",
[BACKLIGHT_PLATFORM] = "platform",
mutex_unlock(&pmac_backlight_mutex);
#endif
+ mutex_lock(&backlight_dev_list_mutex);
+ list_add(&new_bd->entry, &backlight_dev_list);
+ mutex_unlock(&backlight_dev_list_mutex);
+
return new_bd;
}
EXPORT_SYMBOL(backlight_device_register);
+bool backlight_device_registered(enum backlight_type type)
+{
+ bool found = false;
+ struct backlight_device *bd;
+
+ mutex_lock(&backlight_dev_list_mutex);
+ list_for_each_entry(bd, &backlight_dev_list, entry) {
+ if (bd->props.type == type) {
+ found = true;
+ break;
+ }
+ }
+ mutex_unlock(&backlight_dev_list_mutex);
+
+ return found;
+}
+EXPORT_SYMBOL(backlight_device_registered);
+
/**
* backlight_device_unregister - unregisters a backlight device object.
* @bd: the backlight device object to be unregistered and freed.
if (!bd)
return;
+ mutex_lock(&backlight_dev_list_mutex);
+ list_del(&bd->entry);
+ mutex_unlock(&backlight_dev_list_mutex);
+
#ifdef CONFIG_PMAC_BACKLIGHT
mutex_lock(&pmac_backlight_mutex);
if (pmac_backlight == bd)
backlight_class->dev_groups = bl_device_groups;
backlight_class->pm = &backlight_class_dev_pm_ops;
+ INIT_LIST_HEAD(&backlight_dev_list);
+ mutex_init(&backlight_dev_list_mutex);
return 0;
}
if (IS_ERR(ctrl->clk)) {
dev_err(ctrl->dev, "unable to get clk %s\n", mi->clk_name);
ret = -ENOENT;
- goto failed_get_clk;
+ goto failed;
}
clk_prepare_enable(ctrl->clk);
path_deinit(path_plat);
}
- if (ctrl->clk) {
- devm_clk_put(ctrl->dev, ctrl->clk);
- clk_disable_unprepare(ctrl->clk);
- }
-failed_get_clk:
- devm_free_irq(ctrl->dev, ctrl->irq, ctrl);
+ clk_disable_unprepare(ctrl->clk);
failed:
- if (ctrl) {
- if (ctrl->reg_base)
- devm_iounmap(ctrl->dev, ctrl->reg_base);
- devm_release_mem_region(ctrl->dev, res->start,
- resource_size(res));
- devm_kfree(ctrl->dev, ctrl);
- }
-
dev_err(&pdev->dev, "device init failed\n");
return ret;
break;
case 3:
bits_per_pixel = 32;
+ break;
case 1:
default:
return -EINVAL;
if (!fb_find_mode(&info->var, info, mode_option, NULL, 0,
info->monspecs.modedb, 16)) {
printk(KERN_ERR "neofb: Unable to find usable video mode.\n");
+ err = -EINVAL;
goto err_map_video;
}
info->fix.smem_len >> 10, info->var.xres,
info->var.yres, h_sync / 1000, h_sync % 1000, v_sync);
- if (fb_alloc_cmap(&info->cmap, 256, 0) < 0)
+ err = fb_alloc_cmap(&info->cmap, 256, 0);
+ if (err < 0)
goto err_map_video;
err = register_framebuffer(info);
return -EINVAL;
}
- timing_np = of_find_node_by_name(np, name);
+ timing_np = of_get_child_by_name(np, name);
if (!timing_np) {
pr_err("%s: could not find node '%s'\n",
of_node_full_name(np), name);
struct display_timings *disp;
if (!np) {
- pr_err("%s: no devicenode given\n", of_node_full_name(np));
+ pr_err("%s: no device node given\n", of_node_full_name(np));
return NULL;
}
- timings_np = of_find_node_by_name(np, "display-timings");
+ timings_np = of_get_child_by_name(np, "display-timings");
if (!timings_np) {
pr_err("%s: could not find display-timings node\n",
of_node_full_name(np));
config DISPLAY_PANEL_DSI_CM
tristate "Generic DSI Command Mode Panel"
+ depends on BACKLIGHT_CLASS_DEVICE
help
Driver for generic DSI command mode panels.
in = omap_dss_find_output(pdata->source);
if (in == NULL) {
dev_err(&pdev->dev, "Failed to find video source\n");
- return -ENODEV;
+ return -EPROBE_DEFER;
}
ddata->in = in;
in = omap_dss_find_output(pdata->source);
if (in == NULL) {
dev_err(&pdev->dev, "Failed to find video source\n");
- return -ENODEV;
+ return -EPROBE_DEFER;
}
ddata->in = in;
in = omap_dss_find_output(pdata->source);
if (in == NULL) {
dev_err(&pdev->dev, "Failed to find video source\n");
- return -ENODEV;
+ return -EPROBE_DEFER;
}
ddata->in = in;
}
pm_runtime_enable(&pdev->dev);
+ pm_runtime_irq_safe(&pdev->dev);
r = dispc_runtime_get();
if (r)
(info->var.bits_per_pixel * info->var.xres_virtual);
if (info->var.yres_virtual < info->var.yres) {
dev_err(info->device, "virtual vertical size smaller than real\n");
- goto err_find_mode;
- }
-
- /* maximize virtual vertical size for fast scrolling */
- info->var.yres_virtual = info->fix.smem_len * 8 /
- (info->var.bits_per_pixel * info->var.xres_virtual);
- if (info->var.yres_virtual < info->var.yres) {
- dev_err(info->device, "virtual vertical size smaller than real\n");
+ rc = -EINVAL;
goto err_find_mode;
}
sl = dev_to_w1_slave(dev);
fops = sl->family->fops;
+ if (!fops)
+ return 0;
+
switch (action) {
case BUS_NOTIFY_ADD_DEVICE:
/* if the family driver needs to initialize something... */
atomic_set(&sl->refcnt, 0);
init_completion(&sl->released);
+ /* slave modules need to be loaded in a context with unlocked mutex */
+ mutex_unlock(&dev->mutex);
request_module("w1-family-0x%0x", rn->family);
+ mutex_lock(&dev->mutex);
spin_lock(&w1_flock);
f = w1_family_registered(rn->family);
return -ENODEV;
}
+ /*
+ * Ignore all auxilary iLO devices with the following PCI ID
+ */
+ if (dev->subsystem_device == 0x1979)
+ return -ENODEV;
+
if (pci_enable_device(dev)) {
dev_warn(&dev->dev,
"Not possible to enable PCI Device: 0x%x:0x%x.\n",
#define KEMPLD_WDT_STAGE_TIMEOUT(x) (0x1b + (x) * 4)
#define KEMPLD_WDT_STAGE_CFG(x) (0x18 + (x))
#define STAGE_CFG_GET_PRESCALER(x) (((x) & 0x30) >> 4)
-#define STAGE_CFG_SET_PRESCALER(x) (((x) & 0x30) << 4)
+#define STAGE_CFG_SET_PRESCALER(x) (((x) & 0x3) << 4)
#define STAGE_CFG_PRESCALER_MASK 0x30
#define STAGE_CFG_ACTION_MASK 0x7
#define STAGE_CFG_ASSERT (1 << 3)
.set_timeout = sunxi_wdt_set_timeout,
};
-static int __init sunxi_wdt_probe(struct platform_device *pdev)
+static int sunxi_wdt_probe(struct platform_device *pdev)
{
struct sunxi_wdt_dev *sunxi_wdt;
struct resource *res;
return 0;
}
-static int __exit sunxi_wdt_remove(struct platform_device *pdev)
+static int sunxi_wdt_remove(struct platform_device *pdev)
{
struct sunxi_wdt_dev *sunxi_wdt = platform_get_drvdata(pdev);
case WDIOC_GETSTATUS:
case WDIOC_GETBOOTSTATUS:
- return put_user(0, p);
+ error = put_user(0, p);
+ break;
case WDIOC_KEEPALIVE:
ts72xx_wdt_kick(wdt);
if (nr_pages > ARRAY_SIZE(frame_list))
nr_pages = ARRAY_SIZE(frame_list);
- scratch_page = get_balloon_scratch_page();
-
for (i = 0; i < nr_pages; i++) {
page = alloc_page(gfp);
if (page == NULL) {
scrub_page(page);
+ /*
+ * Ballooned out frames are effectively replaced with
+ * a scratch frame. Ensure direct mappings and the
+ * p2m are consistent.
+ */
+ scratch_page = get_balloon_scratch_page();
#ifdef CONFIG_XEN_HAVE_PVMMU
if (xen_pv_domain() && !PageHighMem(page)) {
ret = HYPERVISOR_update_va_mapping(
BUG_ON(ret);
}
#endif
- }
-
- /* Ensure that ballooned highmem pages don't have kmaps. */
- kmap_flush_unused();
- flush_tlb_all();
-
- /* No more mappings: invalidate P2M and add to balloon. */
- for (i = 0; i < nr_pages; i++) {
- pfn = mfn_to_pfn(frame_list[i]);
if (!xen_feature(XENFEAT_auto_translated_physmap)) {
unsigned long p;
p = page_to_pfn(scratch_page);
__set_phys_to_machine(pfn, pfn_to_mfn(p));
}
+ put_balloon_scratch_page();
+
balloon_append(pfn_to_page(pfn));
}
- put_balloon_scratch_page();
+ /* Ensure that ballooned highmem pages don't have kmaps. */
+ kmap_flush_unused();
+ flush_tlb_all();
set_xen_guest_handle(reservation.extent_start, frame_list);
reservation.nr_extents = nr_pages;
/* lock down the parent dentry so we can peer at it */
parent = dget_parent(dentry);
- if (!parent->d_inode)
- goto out_bad;
-
dir = AFS_FS_I(parent->d_inode);
/* validate the parent directory */
}
__initcall(aio_setup);
+static void put_aio_ring_file(struct kioctx *ctx)
+{
+ struct file *aio_ring_file = ctx->aio_ring_file;
+ if (aio_ring_file) {
+ truncate_setsize(aio_ring_file->f_inode, 0);
+
+ /* Prevent further access to the kioctx from migratepages */
+ spin_lock(&aio_ring_file->f_inode->i_mapping->private_lock);
+ aio_ring_file->f_inode->i_mapping->private_data = NULL;
+ ctx->aio_ring_file = NULL;
+ spin_unlock(&aio_ring_file->f_inode->i_mapping->private_lock);
+
+ fput(aio_ring_file);
+ }
+}
+
static void aio_free_ring(struct kioctx *ctx)
{
int i;
- struct file *aio_ring_file = ctx->aio_ring_file;
for (i = 0; i < ctx->nr_pages; i++) {
pr_debug("pid(%d) [%d] page->count=%d\n", current->pid, i,
put_page(ctx->ring_pages[i]);
}
+ put_aio_ring_file(ctx);
+
if (ctx->ring_pages && ctx->ring_pages != ctx->internal_pages)
kfree(ctx->ring_pages);
-
- if (aio_ring_file) {
- truncate_setsize(aio_ring_file->f_inode, 0);
- fput(aio_ring_file);
- ctx->aio_ring_file = NULL;
- }
}
static int aio_ring_mmap(struct file *file, struct vm_area_struct *vma)
static int aio_migratepage(struct address_space *mapping, struct page *new,
struct page *old, enum migrate_mode mode)
{
- struct kioctx *ctx = mapping->private_data;
+ struct kioctx *ctx;
unsigned long flags;
- unsigned idx = old->index;
int rc;
/* Writeback must be complete */
get_page(new);
- spin_lock_irqsave(&ctx->completion_lock, flags);
- migrate_page_copy(new, old);
- ctx->ring_pages[idx] = new;
- spin_unlock_irqrestore(&ctx->completion_lock, flags);
+ /* We can potentially race against kioctx teardown here. Use the
+ * address_space's private data lock to protect the mapping's
+ * private_data.
+ */
+ spin_lock(&mapping->private_lock);
+ ctx = mapping->private_data;
+ if (ctx) {
+ pgoff_t idx;
+ spin_lock_irqsave(&ctx->completion_lock, flags);
+ migrate_page_copy(new, old);
+ idx = old->index;
+ if (idx < (pgoff_t)ctx->nr_pages)
+ ctx->ring_pages[idx] = new;
+ spin_unlock_irqrestore(&ctx->completion_lock, flags);
+ } else
+ rc = -EBUSY;
+ spin_unlock(&mapping->private_lock);
return rc;
}
out_freeref:
free_percpu(ctx->users.pcpu_count);
out_freectx:
- if (ctx->aio_ring_file)
- fput(ctx->aio_ring_file);
+ put_aio_ring_file(ctx);
kmem_cache_free(kioctx_cachep, ctx);
pr_debug("error allocating ioctx %d\n", err);
return ERR_PTR(err);
* long file_ofs
* followed by COUNT filenames in ASCII: "FILE1" NUL "FILE2" NUL...
*/
-static void fill_files_note(struct memelfnote *note)
+static int fill_files_note(struct memelfnote *note)
{
struct vm_area_struct *vma;
unsigned count, size, names_ofs, remaining, n;
names_ofs = (2 + 3 * count) * sizeof(data[0]);
alloc:
if (size >= MAX_FILE_NOTE_SIZE) /* paranoia check */
- goto err;
+ return -EINVAL;
size = round_up(size, PAGE_SIZE);
data = vmalloc(size);
if (!data)
- goto err;
+ return -ENOMEM;
start_end_ofs = data + 2;
name_base = name_curpos = ((char *)data) + names_ofs;
size = name_curpos - (char *)data;
fill_note(note, "CORE", NT_FILE, size, data);
- err: ;
+ return 0;
}
#ifdef CORE_DUMP_USE_REGSET
fill_auxv_note(&info->auxv, current->mm);
info->size += notesize(&info->auxv);
- fill_files_note(&info->files);
- info->size += notesize(&info->files);
+ if (fill_files_note(&info->files) == 0)
+ info->size += notesize(&info->files);
return 1;
}
return 0;
if (first && !writenote(&info->auxv, file, foffset))
return 0;
- if (first && !writenote(&info->files, file, foffset))
+ if (first && info->files.data &&
+ !writenote(&info->files, file, foffset))
return 0;
for (i = 1; i < info->thread_notes; ++i)
struct elf_note_info {
struct memelfnote *notes;
+ struct memelfnote *notes_files;
struct elf_prstatus *prstatus; /* NT_PRSTATUS */
struct elf_prpsinfo *psinfo; /* NT_PRPSINFO */
struct list_head thread_list;
fill_siginfo_note(info->notes + 2, &info->csigdata, siginfo);
fill_auxv_note(info->notes + 3, current->mm);
- fill_files_note(info->notes + 4);
+ info->numnote = 4;
- info->numnote = 5;
+ if (fill_files_note(info->notes + info->numnote) == 0) {
+ info->notes_files = info->notes + info->numnote;
+ info->numnote++;
+ }
/* Try to dump the FPU. */
info->prstatus->pr_fpvalid = elf_core_copy_task_fpregs(current, regs,
kfree(list_entry(tmp, struct elf_thread_status, list));
}
- /* Free data allocated by fill_files_note(): */
- vfree(info->notes[4].data);
+ /* Free data possibly allocated by fill_files_note(): */
+ if (info->notes_files)
+ vfree(info->notes_files->data);
kfree(info->prstatus);
kfree(info->psinfo);
struct vm_area_struct *vma, *gate_vma;
struct elfhdr *elf = NULL;
loff_t offset = 0, dataoff, foffset;
- struct elf_note_info info;
+ struct elf_note_info info = { };
struct elf_phdr *phdr4note = NULL;
struct elf_shdr *shdr4extnum = NULL;
Elf_Half e_phnum;
src_p = kmap_atomic(src_bv->bv_page);
dst_p = kmap_atomic(dst_bv->bv_page);
- memcpy(dst_p + dst_bv->bv_offset,
- src_p + src_bv->bv_offset,
+ memcpy(dst_p + dst_offset,
+ src_p + src_offset,
bytes);
kunmap_atomic(dst_p);
worker->idle = 1;
/* the list may be empty if the worker is just starting */
- if (!list_empty(&worker->worker_list)) {
+ if (!list_empty(&worker->worker_list) &&
+ !worker->workers->stopping) {
list_move(&worker->worker_list,
&worker->workers->idle_list);
}
spin_lock_irqsave(&worker->workers->lock, flags);
worker->idle = 0;
- if (!list_empty(&worker->worker_list)) {
+ if (!list_empty(&worker->worker_list) &&
+ !worker->workers->stopping) {
list_move_tail(&worker->worker_list,
&worker->workers->worker_list);
}
int can_stop;
spin_lock_irq(&workers->lock);
+ workers->stopping = 1;
list_splice_init(&workers->idle_list, &workers->worker_list);
while (!list_empty(&workers->worker_list)) {
cur = workers->worker_list.next;
workers->ordered = 0;
workers->atomic_start_pending = 0;
workers->atomic_worker_start = async_helper;
+ workers->stopping = 0;
}
/*
atomic_set(&worker->num_pending, 0);
atomic_set(&worker->refs, 1);
worker->workers = workers;
- worker->task = kthread_run(worker_loop, worker,
- "btrfs-%s-%d", workers->name,
- workers->num_workers + 1);
+ worker->task = kthread_create(worker_loop, worker,
+ "btrfs-%s-%d", workers->name,
+ workers->num_workers + 1);
if (IS_ERR(worker->task)) {
ret = PTR_ERR(worker->task);
- kfree(worker);
goto fail;
}
+
spin_lock_irq(&workers->lock);
+ if (workers->stopping) {
+ spin_unlock_irq(&workers->lock);
+ goto fail_kthread;
+ }
list_add_tail(&worker->worker_list, &workers->idle_list);
worker->idle = 1;
workers->num_workers++;
WARN_ON(workers->num_workers_starting < 0);
spin_unlock_irq(&workers->lock);
+ wake_up_process(worker->task);
return 0;
+
+fail_kthread:
+ kthread_stop(worker->task);
fail:
+ kfree(worker);
spin_lock_irq(&workers->lock);
workers->num_workers_starting--;
spin_unlock_irq(&workers->lock);
/* extra name for this worker, used for current->name */
char *name;
+
+ int stopping;
};
void btrfs_queue_worker(struct btrfs_workers *workers, struct btrfs_work *work);
list_add(&tgt_device->dev_alloc_list, &fs_info->fs_devices->alloc_list);
btrfs_rm_dev_replace_srcdev(fs_info, src_device);
- if (src_device->bdev) {
- /* zero out the old super */
- btrfs_scratch_superblock(src_device);
- }
+
/*
* this is again a consistent state where no dev_replace procedure
* is running, the target device is part of the filesystem, the
return ret;
}
-struct btrfs_root *btrfs_read_fs_root_no_name(struct btrfs_fs_info *fs_info,
- struct btrfs_key *location)
+struct btrfs_root *btrfs_get_fs_root(struct btrfs_fs_info *fs_info,
+ struct btrfs_key *location,
+ bool check_ref)
{
struct btrfs_root *root;
int ret;
again:
root = btrfs_lookup_fs_root(fs_info, location->objectid);
if (root) {
- if (btrfs_root_refs(&root->root_item) == 0)
+ if (check_ref && btrfs_root_refs(&root->root_item) == 0)
return ERR_PTR(-ENOENT);
return root;
}
if (IS_ERR(root))
return root;
- if (btrfs_root_refs(&root->root_item) == 0) {
+ if (check_ref && btrfs_root_refs(&root->root_item) == 0) {
ret = -ENOENT;
goto fail;
}
int btrfs_init_fs_root(struct btrfs_root *root);
int btrfs_insert_fs_root(struct btrfs_fs_info *fs_info,
struct btrfs_root *root);
-struct btrfs_root *btrfs_read_fs_root_no_name(struct btrfs_fs_info *fs_info,
- struct btrfs_key *location);
+
+struct btrfs_root *btrfs_get_fs_root(struct btrfs_fs_info *fs_info,
+ struct btrfs_key *key,
+ bool check_ref);
+static inline struct btrfs_root *
+btrfs_read_fs_root_no_name(struct btrfs_fs_info *fs_info,
+ struct btrfs_key *location)
+{
+ return btrfs_get_fs_root(fs_info, location, true);
+}
+
int btrfs_cleanup_fs_roots(struct btrfs_fs_info *fs_info);
void btrfs_btree_balance_dirty(struct btrfs_root *root);
void btrfs_btree_balance_dirty_nodelay(struct btrfs_root *root);
offsetof(struct btrfs_io_bio, bio));
if (!btrfs_bioset)
goto free_buffer_cache;
+
+ if (bioset_integrity_create(btrfs_bioset, BIO_POOL_SIZE))
+ goto free_bioset;
+
return 0;
+free_bioset:
+ bioset_free(btrfs_bioset);
+ btrfs_bioset = NULL;
+
free_buffer_cache:
kmem_cache_destroy(extent_buffer_cache);
extent_buffer_cache = NULL;
cur_start = state->end + 1;
node = rb_next(node);
total_bytes += state->end - state->start + 1;
- if (total_bytes >= max_bytes) {
- *end = *start + max_bytes - 1;
+ if (total_bytes >= max_bytes)
break;
- }
if (!node)
break;
}
*start = delalloc_start;
*end = delalloc_end;
free_extent_state(cached_state);
- return found;
+ return 0;
}
/*
/*
* make sure to limit the number of pages we try to lock down
- * if we're looping.
*/
- if (delalloc_end + 1 - delalloc_start > max_bytes && loops)
- delalloc_end = delalloc_start + PAGE_CACHE_SIZE - 1;
+ if (delalloc_end + 1 - delalloc_start > max_bytes)
+ delalloc_end = delalloc_start + max_bytes - 1;
/* step two, lock all the pages after the page that has start */
ret = lock_delalloc_pages(inode, locked_page,
*/
free_extent_state(cached_state);
if (!loops) {
- unsigned long offset = (*start) & (PAGE_CACHE_SIZE - 1);
- max_bytes = PAGE_CACHE_SIZE - offset;
+ max_bytes = PAGE_CACHE_SIZE;
loops = 1;
goto again;
} else {
if (btrfs_extent_readonly(root, disk_bytenr))
goto out;
+ btrfs_release_path(path);
/*
* look for other files referencing this extent, if we
/* check for collisions, even if the name isn't there */
- ret = btrfs_check_dir_item_collision(root, new_dir->i_ino,
+ ret = btrfs_check_dir_item_collision(dest, new_dir->i_ino,
new_dentry->d_name.name,
new_dentry->d_name.len);
else
key.offset = (u64)-1;
- return btrfs_read_fs_root_no_name(fs_info, &key);
+ return btrfs_get_fs_root(fs_info, &key, false);
}
#ifdef BTRFS_COMPAT_EXTENT_TREE_V0
continue;
}
- if (btrfs_root_refs(&root->root_item) == 0) {
- btrfs_add_dead_root(root);
- continue;
- }
-
err = btrfs_init_fs_root(root);
if (err) {
btrfs_free_fs_root(root);
btrfs_free_fs_root(root);
break;
}
+
+ if (btrfs_root_refs(&root->root_item) == 0)
+ btrfs_add_dead_root(root);
}
btrfs_free_path(path);
assert_qgroups_uptodate(trans);
update_super_roots(root);
- if (!root->fs_info->log_root_recovering) {
- btrfs_set_super_log_root(root->fs_info->super_copy, 0);
- btrfs_set_super_log_root_level(root->fs_info->super_copy, 0);
- }
-
+ btrfs_set_super_log_root(root->fs_info->super_copy, 0);
+ btrfs_set_super_log_root_level(root->fs_info->super_copy, 0);
memcpy(root->fs_info->super_for_commit, root->fs_info->super_copy,
sizeof(*root->fs_info->super_copy));
struct btrfs_device *srcdev)
{
WARN_ON(!mutex_is_locked(&fs_info->fs_devices->device_list_mutex));
+
list_del_rcu(&srcdev->dev_list);
list_del_rcu(&srcdev->dev_alloc_list);
fs_info->fs_devices->num_devices--;
}
if (srcdev->can_discard)
fs_info->fs_devices->num_can_discard--;
- if (srcdev->bdev)
+ if (srcdev->bdev) {
fs_info->fs_devices->open_devices--;
+ /* zero out the old super */
+ btrfs_scratch_superblock(srcdev);
+ }
+
call_rcu(&srcdev->rcu, free_device);
}
struct buffer_head *bh;
sector_t end_block;
int ret = 0; /* Will call free_more_memory() */
+ gfp_t gfp_mask;
- page = find_or_create_page(inode->i_mapping, index,
- (mapping_gfp_mask(inode->i_mapping) & ~__GFP_FS)|__GFP_MOVABLE);
+ gfp_mask = mapping_gfp_mask(inode->i_mapping) & ~__GFP_FS;
+ gfp_mask |= __GFP_MOVABLE;
+ /*
+ * XXX: __getblk_slow() can not really deal with failure and
+ * will endlessly loop on improvised global reclaim. Prefer
+ * looping in the allocator rather than here, at least that
+ * code knows what it's doing.
+ */
+ gfp_mask |= __GFP_NOFAIL;
+
+ page = find_or_create_page(inode->i_mapping, index, gfp_mask);
if (!page)
return ret;
{
struct inode *inode;
struct cifs_sb_info *cifs_sb;
+ struct cifs_tcon *tcon;
int rc = 0;
cifs_sb = CIFS_SB(sb);
+ tcon = cifs_sb_master_tcon(cifs_sb);
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIXACL)
sb->s_flags |= MS_POSIXACL;
- if (cifs_sb_master_tcon(cifs_sb)->ses->capabilities & CAP_LARGE_FILES)
+ if (tcon->ses->capabilities & tcon->ses->server->vals->cap_large_files)
sb->s_maxbytes = MAX_LFS_FILESIZE;
else
sb->s_maxbytes = MAX_NON_LFS;
goto out_no_root;
}
- if (cifs_sb_master_tcon(cifs_sb)->nocase)
+ if (tcon->nocase)
sb->s_d_op = &cifs_ci_dentry_ops;
else
sb->s_d_op = &cifs_dentry_ops;
extern const struct export_operations cifs_export_ops;
#endif /* CONFIG_CIFS_NFSD_EXPORT */
-#define CIFS_VERSION "2.01"
+#define CIFS_VERSION "2.02"
#endif /* _CIFSFS_H */
unsigned int max_rw; /* maxRw specifies the maximum */
/* message size the server can send or receive for */
/* SMB_COM_WRITE_RAW or SMB_COM_READ_RAW. */
- unsigned int max_vcs; /* maximum number of smb sessions, at least
- those that can be specified uniquely with
- vcnumbers */
unsigned int capabilities; /* selective disabling of caps by smb sess */
int timeAdj; /* Adjust for difference in server time zone in sec */
__u64 CurrentMid; /* multiplex id - rotating counter */
enum statusEnum status;
unsigned overrideSecFlg; /* if non-zero override global sec flags */
__u16 ipc_tid; /* special tid for connection to IPC share */
- __u16 vcnum;
char *serverOS; /* name of operating system underlying server */
char *serverNOS; /* name of network operating system of server */
char *serverDomain; /* security realm of server */
#define CIFS_FATTR_DELETE_PENDING 0x2
#define CIFS_FATTR_NEED_REVAL 0x4
#define CIFS_FATTR_INO_COLLISION 0x8
+#define CIFS_FATTR_UNKNOWN_NLINK 0x10
struct cifs_fattr {
u32 cf_flags;
__u8 FileName[0];
} __attribute__((packed));
-struct reparse_data {
- __u32 ReparseTag;
- __u16 ReparseDataLength;
+/* For IO_REPARSE_TAG_SYMLINK */
+struct reparse_symlink_data {
+ __le32 ReparseTag;
+ __le16 ReparseDataLength;
__u16 Reserved;
- __u16 SubstituteNameOffset;
- __u16 SubstituteNameLength;
- __u16 PrintNameOffset;
- __u16 PrintNameLength;
- __u32 Flags;
+ __le16 SubstituteNameOffset;
+ __le16 SubstituteNameLength;
+ __le16 PrintNameOffset;
+ __le16 PrintNameLength;
+ __le32 Flags;
+ char PathBuffer[0];
+} __attribute__((packed));
+
+/* For IO_REPARSE_TAG_NFS */
+#define NFS_SPECFILE_LNK 0x00000000014B4E4C
+#define NFS_SPECFILE_CHR 0x0000000000524843
+#define NFS_SPECFILE_BLK 0x00000000004B4C42
+#define NFS_SPECFILE_FIFO 0x000000004F464946
+#define NFS_SPECFILE_SOCK 0x000000004B434F53
+struct reparse_posix_data {
+ __le32 ReparseTag;
+ __le16 ReparseDataLength;
+ __u16 Reserved;
+ __le64 InodeType; /* LNK, FIFO, CHR etc. */
char PathBuffer[0];
} __attribute__((packed));
} __attribute__((packed)) FILE_XATTR_INFO; /* extended attribute info
level 0x205 */
-
-/* flags for chattr command */
-#define EXT_SECURE_DELETE 0x00000001 /* EXT3_SECRM_FL */
-#define EXT_ENABLE_UNDELETE 0x00000002 /* EXT3_UNRM_FL */
-/* Reserved for compress file 0x4 */
-#define EXT_SYNCHRONOUS 0x00000008 /* EXT3_SYNC_FL */
-#define EXT_IMMUTABLE_FL 0x00000010 /* EXT3_IMMUTABLE_FL */
-#define EXT_OPEN_APPEND_ONLY 0x00000020 /* EXT3_APPEND_FL */
-#define EXT_DO_NOT_BACKUP 0x00000040 /* EXT3_NODUMP_FL */
-#define EXT_NO_UPDATE_ATIME 0x00000080 /* EXT3_NOATIME_FL */
-/* 0x100 through 0x800 reserved for compression flags and are GET-ONLY */
-#define EXT_HASH_TREE_INDEXED_DIR 0x00001000 /* GET-ONLY EXT3_INDEX_FL */
-/* 0x2000 reserved for IMAGIC_FL */
-#define EXT_JOURNAL_THIS_FILE 0x00004000 /* GET-ONLY EXT3_JOURNAL_DATA_FL */
-/* 0x8000 reserved for EXT3_NOTAIL_FL */
-#define EXT_SYNCHRONOUS_DIR 0x00010000 /* EXT3_DIRSYNC_FL */
-#define EXT_TOPDIR 0x00020000 /* EXT3_TOPDIR_FL */
-
-#define EXT_SET_MASK 0x000300FF
-#define EXT_GET_MASK 0x0003DFFF
+/* flags for lsattr and chflags commands removed arein uapi/linux/fs.h */
typedef struct file_chattr_info {
__le64 mask; /* list of all possible attribute bits */
cifs_max_pending);
set_credits(server, server->maxReq);
server->maxBuf = le16_to_cpu(rsp->MaxBufSize);
- server->max_vcs = le16_to_cpu(rsp->MaxNumberVcs);
/* even though we do not use raw we might as well set this
accurately, in case we ever find a need for it */
if ((le16_to_cpu(rsp->RawMode) & RAW_ENABLE) == RAW_ENABLE) {
bool is_unicode;
unsigned int sub_len;
char *sub_start;
- struct reparse_data *reparse_buf;
+ struct reparse_symlink_data *reparse_buf;
+ struct reparse_posix_data *posix_buf;
__u32 data_offset, data_count;
char *end_of_smb;
goto qreparse_out;
}
end_of_smb = 2 + get_bcc(&pSMBr->hdr) + (char *)&pSMBr->ByteCount;
- reparse_buf = (struct reparse_data *)
+ reparse_buf = (struct reparse_symlink_data *)
((char *)&pSMBr->hdr.Protocol + data_offset);
if ((char *)reparse_buf >= end_of_smb) {
rc = -EIO;
goto qreparse_out;
}
- if ((reparse_buf->PathBuffer + reparse_buf->PrintNameOffset +
- reparse_buf->PrintNameLength) > end_of_smb) {
+ if (reparse_buf->ReparseTag == cpu_to_le32(IO_REPARSE_TAG_NFS)) {
+ cifs_dbg(FYI, "NFS style reparse tag\n");
+ posix_buf = (struct reparse_posix_data *)reparse_buf;
+
+ if (posix_buf->InodeType != cpu_to_le64(NFS_SPECFILE_LNK)) {
+ cifs_dbg(FYI, "unsupported file type 0x%llx\n",
+ le64_to_cpu(posix_buf->InodeType));
+ rc = -EOPNOTSUPP;
+ goto qreparse_out;
+ }
+ is_unicode = true;
+ sub_len = le16_to_cpu(reparse_buf->ReparseDataLength);
+ if (posix_buf->PathBuffer + sub_len > end_of_smb) {
+ cifs_dbg(FYI, "reparse buf beyond SMB\n");
+ rc = -EIO;
+ goto qreparse_out;
+ }
+ *symlinkinfo = cifs_strndup_from_utf16(posix_buf->PathBuffer,
+ sub_len, is_unicode, nls_codepage);
+ goto qreparse_out;
+ } else if (reparse_buf->ReparseTag !=
+ cpu_to_le32(IO_REPARSE_TAG_SYMLINK)) {
+ rc = -EOPNOTSUPP;
+ goto qreparse_out;
+ }
+
+ /* Reparse tag is NTFS symlink */
+ sub_start = le16_to_cpu(reparse_buf->SubstituteNameOffset) +
+ reparse_buf->PathBuffer;
+ sub_len = le16_to_cpu(reparse_buf->SubstituteNameLength);
+ if (sub_start + sub_len > end_of_smb) {
cifs_dbg(FYI, "reparse buf beyond SMB\n");
rc = -EIO;
goto qreparse_out;
}
- sub_start = reparse_buf->SubstituteNameOffset + reparse_buf->PathBuffer;
- sub_len = reparse_buf->SubstituteNameLength;
if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE)
is_unicode = true;
else
/*
* Reads as many pages as possible from fscache. Returns -ENOBUFS
* immediately if the cookie is negative
+ *
+ * After this point, every page in the list might have PG_fscache set,
+ * so we will need to clean that up off of every page we don't use.
*/
rc = cifs_readpages_from_fscache(mapping->host, mapping, page_list,
&num_pages);
kref_put(&rdata->refcount, cifs_readdata_release);
}
+ /* Any pages that have been shown to fscache but didn't get added to
+ * the pagecache must be uncached before they get returned to the
+ * allocator.
+ */
+ cifs_fscache_readpages_cancel(mapping->host, page_list);
return rc;
}
fscache_uncache_page(CIFS_I(inode)->fscache, page);
}
+void __cifs_fscache_readpages_cancel(struct inode *inode, struct list_head *pages)
+{
+ cifs_dbg(FYI, "%s: (fsc: %p, i: %p)\n",
+ __func__, CIFS_I(inode)->fscache, inode);
+ fscache_readpages_cancel(CIFS_I(inode)->fscache, pages);
+}
+
void __cifs_fscache_invalidate_page(struct page *page, struct inode *inode)
{
struct cifsInodeInfo *cifsi = CIFS_I(inode);
struct address_space *,
struct list_head *,
unsigned *);
+extern void __cifs_fscache_readpages_cancel(struct inode *, struct list_head *);
extern void __cifs_readpage_to_fscache(struct inode *, struct page *);
__cifs_readpage_to_fscache(inode, page);
}
+static inline void cifs_fscache_readpages_cancel(struct inode *inode,
+ struct list_head *pages)
+{
+ if (CIFS_I(inode)->fscache)
+ return __cifs_fscache_readpages_cancel(inode, pages);
+}
+
#else /* CONFIG_CIFS_FSCACHE */
static inline int cifs_fscache_register(void) { return 0; }
static inline void cifs_fscache_unregister(void) {}
static inline void cifs_readpage_to_fscache(struct inode *inode,
struct page *page) {}
+static inline void cifs_fscache_readpages_cancel(struct inode *inode,
+ struct list_head *pages)
+{
+}
+
#endif /* CONFIG_CIFS_FSCACHE */
#endif /* _CIFS_FSCACHE_H */
cifs_i->invalid_mapping = true;
}
+/*
+ * copy nlink to the inode, unless it wasn't provided. Provide
+ * sane values if we don't have an existing one and none was provided
+ */
+static void
+cifs_nlink_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr)
+{
+ /*
+ * if we're in a situation where we can't trust what we
+ * got from the server (readdir, some non-unix cases)
+ * fake reasonable values
+ */
+ if (fattr->cf_flags & CIFS_FATTR_UNKNOWN_NLINK) {
+ /* only provide fake values on a new inode */
+ if (inode->i_state & I_NEW) {
+ if (fattr->cf_cifsattrs & ATTR_DIRECTORY)
+ set_nlink(inode, 2);
+ else
+ set_nlink(inode, 1);
+ }
+ return;
+ }
+
+ /* we trust the server, so update it */
+ set_nlink(inode, fattr->cf_nlink);
+}
+
/* populate an inode with info from a cifs_fattr struct */
void
cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr)
inode->i_mtime = fattr->cf_mtime;
inode->i_ctime = fattr->cf_ctime;
inode->i_rdev = fattr->cf_rdev;
- set_nlink(inode, fattr->cf_nlink);
+ cifs_nlink_fattr_to_inode(inode, fattr);
inode->i_uid = fattr->cf_uid;
inode->i_gid = fattr->cf_gid;
fattr->cf_bytes = le64_to_cpu(info->AllocationSize);
fattr->cf_createtime = le64_to_cpu(info->CreationTime);
+ fattr->cf_nlink = le32_to_cpu(info->NumberOfLinks);
if (fattr->cf_cifsattrs & ATTR_DIRECTORY) {
fattr->cf_mode = S_IFDIR | cifs_sb->mnt_dir_mode;
fattr->cf_dtype = DT_DIR;
* Server can return wrong NumberOfLinks value for directories
* when Unix extensions are disabled - fake it.
*/
- fattr->cf_nlink = 2;
+ if (!tcon->unix_ext)
+ fattr->cf_flags |= CIFS_FATTR_UNKNOWN_NLINK;
} else if (fattr->cf_cifsattrs & ATTR_REPARSE) {
fattr->cf_mode = S_IFLNK;
fattr->cf_dtype = DT_LNK;
if (fattr->cf_cifsattrs & ATTR_READONLY)
fattr->cf_mode &= ~(S_IWUGO);
- fattr->cf_nlink = le32_to_cpu(info->NumberOfLinks);
- if (fattr->cf_nlink < 1) {
- cifs_dbg(1, "replacing bogus file nlink value %u\n",
+ /*
+ * Don't accept zero nlink from non-unix servers unless
+ * delete is pending. Instead mark it as unknown.
+ */
+ if ((fattr->cf_nlink < 1) && !tcon->unix_ext &&
+ !info->DeletePending) {
+ cifs_dbg(1, "bogus file nlink value %u\n",
fattr->cf_nlink);
- fattr->cf_nlink = 1;
+ fattr->cf_flags |= CIFS_FATTR_UNKNOWN_NLINK;
}
}
ERRDOS, ERRnoaccess, 0xc0000290}, {
ERRDOS, ERRbadfunc, 0xc000029c}, {
ERRDOS, ERRsymlink, NT_STATUS_STOPPED_ON_SYMLINK}, {
- ERRDOS, ERRinvlevel, 0x007c0001}, };
+ ERRDOS, ERRinvlevel, 0x007c0001}, {
+ 0, 0, 0 }
+};
/*****************************************************************************
Print an error message from the status code
fattr->cf_dtype = DT_REG;
}
+ /* non-unix readdir doesn't provide nlink */
+ fattr->cf_flags |= CIFS_FATTR_UNKNOWN_NLINK;
+
if (fattr->cf_cifsattrs & ATTR_READONLY)
fattr->cf_mode &= ~S_IWUGO;
#include <linux/slab.h>
#include "cifs_spnego.h"
-/*
- * Checks if this is the first smb session to be reconnected after
- * the socket has been reestablished (so we know whether to use vc 0).
- * Called while holding the cifs_tcp_ses_lock, so do not block
- */
-static bool is_first_ses_reconnect(struct cifs_ses *ses)
-{
- struct list_head *tmp;
- struct cifs_ses *tmp_ses;
-
- list_for_each(tmp, &ses->server->smb_ses_list) {
- tmp_ses = list_entry(tmp, struct cifs_ses,
- smb_ses_list);
- if (tmp_ses->need_reconnect == false)
- return false;
- }
- /* could not find a session that was already connected,
- this must be the first one we are reconnecting */
- return true;
-}
-
-/*
- * vc number 0 is treated specially by some servers, and should be the
- * first one we request. After that we can use vcnumbers up to maxvcs,
- * one for each smb session (some Windows versions set maxvcs incorrectly
- * so maxvc=1 can be ignored). If we have too many vcs, we can reuse
- * any vc but zero (some servers reset the connection on vcnum zero)
- *
- */
-static __le16 get_next_vcnum(struct cifs_ses *ses)
-{
- __u16 vcnum = 0;
- struct list_head *tmp;
- struct cifs_ses *tmp_ses;
- __u16 max_vcs = ses->server->max_vcs;
- __u16 i;
- int free_vc_found = 0;
-
- /* Quoting the MS-SMB specification: "Windows-based SMB servers set this
- field to one but do not enforce this limit, which allows an SMB client
- to establish more virtual circuits than allowed by this value ... but
- other server implementations can enforce this limit." */
- if (max_vcs < 2)
- max_vcs = 0xFFFF;
-
- spin_lock(&cifs_tcp_ses_lock);
- if ((ses->need_reconnect) && is_first_ses_reconnect(ses))
- goto get_vc_num_exit; /* vcnum will be zero */
- for (i = ses->server->srv_count - 1; i < max_vcs; i++) {
- if (i == 0) /* this is the only connection, use vc 0 */
- break;
-
- free_vc_found = 1;
-
- list_for_each(tmp, &ses->server->smb_ses_list) {
- tmp_ses = list_entry(tmp, struct cifs_ses,
- smb_ses_list);
- if (tmp_ses->vcnum == i) {
- free_vc_found = 0;
- break; /* found duplicate, try next vcnum */
- }
- }
- if (free_vc_found)
- break; /* we found a vcnumber that will work - use it */
- }
-
- if (i == 0)
- vcnum = 0; /* for most common case, ie if one smb session, use
- vc zero. Also for case when no free vcnum, zero
- is safest to send (some clients only send zero) */
- else if (free_vc_found == 0)
- vcnum = 1; /* we can not reuse vc=0 safely, since some servers
- reset all uids on that, but 1 is ok. */
- else
- vcnum = i;
- ses->vcnum = vcnum;
-get_vc_num_exit:
- spin_unlock(&cifs_tcp_ses_lock);
-
- return cpu_to_le16(vcnum);
-}
-
static __u32 cifs_ssetup_hdr(struct cifs_ses *ses, SESSION_SETUP_ANDX *pSMB)
{
__u32 capabilities = 0;
CIFSMaxBufSize + MAX_CIFS_HDR_SIZE - 4,
USHRT_MAX));
pSMB->req.MaxMpxCount = cpu_to_le16(ses->server->maxReq);
- pSMB->req.VcNumber = get_next_vcnum(ses);
+ pSMB->req.VcNumber = __constant_cpu_to_le16(1);
/* Now no need to set SMBFLG_CASELESS or obsolete CANONICAL PATH */
return NTLMv2;
if (global_secflags & CIFSSEC_MAY_NTLM)
return NTLM;
- /* Fallthrough */
default:
- return Unspecified;
+ /* Fallthrough to attempt LANMAN authentication next */
+ break;
}
case CIFS_NEGFLAVOR_LANMAN:
switch (requested) {
else
return -EIO;
+ /* no need to send SMB logoff if uid already closed due to reconnect */
+ if (ses->need_reconnect)
+ goto smb2_session_already_dead;
+
rc = small_smb2_init(SMB2_LOGOFF, NULL, (void **) &req);
if (rc)
return rc;
* No tcon so can't do
* cifs_stats_inc(&tcon->stats.smb2_stats.smb2_com_fail[SMB2...]);
*/
+
+smb2_session_already_dead:
return rc;
}
#define FSCTL_QUERY_NETWORK_INTERFACE_INFO 0x001401FC /* BB add struct */
#define FSCTL_SRV_READ_HASH 0x001441BB /* BB add struct */
+/* See FSCC 2.1.2.5 */
#define IO_REPARSE_TAG_MOUNT_POINT 0xA0000003
#define IO_REPARSE_TAG_HSM 0xC0000004
#define IO_REPARSE_TAG_SIS 0x80000007
+#define IO_REPARSE_TAG_HSM2 0x80000006
+#define IO_REPARSE_TAG_DRIVER_EXTENDER 0x80000005
+/* Used by the DFS filter. See MS-DFSC */
+#define IO_REPARSE_TAG_DFS 0x8000000A
+/* Used by the DFS filter See MS-DFSC */
+#define IO_REPARSE_TAG_DFSR 0x80000012
+#define IO_REPARSE_TAG_FILTER_MANAGER 0x8000000B
+/* See section MS-FSCC 2.1.2.4 */
+#define IO_REPARSE_TAG_SYMLINK 0xA000000C
+#define IO_REPARSE_TAG_DEDUP 0x80000013
+#define IO_REPARSE_APPXSTREAM 0xC0000014
+/* NFS symlinks, Win 8/SMB3 and later */
+#define IO_REPARSE_TAG_NFS 0x80000014
/* fsctl flags */
/* If Flags is set to this value, the request is an FSCTL not ioctl request */
wait_for_free_request(struct TCP_Server_Info *server, const int timeout,
const int optype)
{
- return wait_for_free_credits(server, timeout,
- server->ops->get_credits_field(server, optype));
+ int *val;
+
+ val = server->ops->get_credits_field(server, optype);
+ /* Since an echo is already inflight, no need to wait to send another */
+ if (*val <= 0 && optype == CIFS_ECHO_OP)
+ return -EAGAIN;
+ return wait_for_free_credits(server, timeout, val);
}
static int allocate_mid(struct cifs_ses *ses, struct smb_hdr *in_buf,
* list is non-empty and continue searching.
*/
-/**
- * have_submounts - check for mounts over a dentry
- * @parent: dentry to check.
- *
- * Return true if the parent or its subdirectories contain
- * a mount point
- */
-
static enum d_walk_ret check_mount(void *data, struct dentry *dentry)
{
int *ret = data;
return D_WALK_CONTINUE;
}
+/**
+ * have_submounts - check for mounts over a dentry
+ * @parent: dentry to check.
+ *
+ * Return true if the parent or its subdirectories contain
+ * a mount point
+ */
int have_submounts(struct dentry *parent)
{
int ret = 0;
struct page *page)
{
return ecryptfs_lower_header_size(crypt_stat) +
- (page->index << PAGE_CACHE_SHIFT);
+ ((loff_t)page->index << PAGE_CACHE_SHIFT);
}
/**
struct ecryptfs_msg_ctx *msg_ctx;
struct ecryptfs_message *msg = NULL;
char *auth_tok_sig;
- char *payload;
+ char *payload = NULL;
size_t payload_len = 0;
int rc;
}
out:
kfree(msg);
+ kfree(payload);
return rc;
}
d_tmpfile(dentry, inode);
err = ext3_orphan_add(handle, inode);
if (err)
- goto err_drop_inode;
+ goto err_unlock_inode;
mark_inode_dirty(inode);
unlock_new_inode(inode);
}
if (err == -ENOSPC && ext3_should_retry_alloc(dir->i_sb, &retries))
goto retry;
return err;
-err_drop_inode:
+err_unlock_inode:
ext3_journal_stop(handle);
unlock_new_inode(inode);
- iput(inode);
return err;
}
break;
}
blk_finish_plug(&plug);
- if (!ret && !cycled) {
+ if (!ret && !cycled && wbc->nr_to_write > 0) {
cycled = 1;
mpd.last_page = writeback_index - 1;
mpd.first_page = 0;
d_tmpfile(dentry, inode);
err = ext4_orphan_add(handle, inode);
if (err)
- goto err_drop_inode;
+ goto err_unlock_inode;
mark_inode_dirty(inode);
unlock_new_inode(inode);
}
if (err == -ENOSPC && ext4_should_retry_alloc(dir->i_sb, &retries))
goto retry;
return err;
-err_drop_inode:
+err_unlock_inode:
ext4_journal_stop(handle);
unlock_new_inode(inode);
- iput(inode);
return err;
}
s_min_extra_isize) {
tried_min_extra_isize++;
new_extra_isize = s_min_extra_isize;
+ kfree(is); is = NULL;
+ kfree(bs); bs = NULL;
goto retry;
}
error = -1;
delayed_fput(NULL);
}
-static DECLARE_WORK(delayed_fput_work, delayed_fput);
+static DECLARE_DELAYED_WORK(delayed_fput_work, delayed_fput);
void fput(struct file *file)
{
}
if (llist_add(&file->f_u.fu_llist, &delayed_fput_list))
- schedule_work(&delayed_fput_work);
+ schedule_delayed_work(&delayed_fput_work, 1);
}
}
struct inode *inode;
struct dentry *parent;
struct fuse_conn *fc;
+ struct fuse_inode *fi;
int ret;
inode = ACCESS_ONCE(entry->d_inode);
if (!err && !outarg.nodeid)
err = -ENOENT;
if (!err) {
- struct fuse_inode *fi = get_fuse_inode(inode);
+ fi = get_fuse_inode(inode);
if (outarg.nodeid != get_node_id(inode)) {
fuse_queue_forget(fc, forget, outarg.nodeid, 1);
goto invalid;
attr_version);
fuse_change_entry_timeout(entry, &outarg);
} else if (inode) {
- fc = get_fuse_conn(inode);
- if (fc->readdirplus_auto) {
+ fi = get_fuse_inode(inode);
+ if (flags & LOOKUP_RCU) {
+ if (test_bit(FUSE_I_INIT_RDPLUS, &fi->state))
+ return -ECHILD;
+ } else if (test_and_clear_bit(FUSE_I_INIT_RDPLUS, &fi->state)) {
parent = dget_parent(entry);
fuse_advise_use_readdirplus(parent->d_inode);
dput(parent);
invalid:
ret = 0;
- if (check_submounts_and_drop(entry) != 0)
+
+ if (!(flags & LOOKUP_RCU) && check_submounts_and_drop(entry) != 0)
ret = 1;
goto out;
}
struct fuse_access_in inarg;
int err;
+ BUG_ON(mask & MAY_NOT_BLOCK);
+
if (fc->no_access)
return 0;
noticed immediately, only after the attribute
timeout has expired */
} else if (mask & (MAY_ACCESS | MAY_CHDIR)) {
- if (mask & MAY_NOT_BLOCK)
- return -ECHILD;
-
err = fuse_access(inode, mask);
} else if ((mask & MAY_EXEC) && S_ISREG(inode->i_mode)) {
if (!(inode->i_mode & S_IXUGO)) {
}
found:
+ if (fc->readdirplus_auto)
+ set_bit(FUSE_I_INIT_RDPLUS, &get_fuse_inode(inode)->state);
fuse_change_entry_timeout(dentry, o);
err = 0;
{
struct fuse_file *ff = file->private_data;
struct inode *inode = file->f_inode;
+ struct fuse_inode *fi = get_fuse_inode(inode);
struct fuse_conn *fc = ff->fc;
struct fuse_req *req;
struct fuse_fallocate_in inarg = {
if (lock_inode) {
mutex_lock(&inode->i_mutex);
- if (mode & FALLOC_FL_PUNCH_HOLE)
- fuse_set_nowrite(inode);
+ if (mode & FALLOC_FL_PUNCH_HOLE) {
+ loff_t endbyte = offset + length - 1;
+ err = filemap_write_and_wait_range(inode->i_mapping,
+ offset, endbyte);
+ if (err)
+ goto out;
+
+ fuse_sync_writes(inode);
+ }
}
+ if (!(mode & FALLOC_FL_KEEP_SIZE))
+ set_bit(FUSE_I_SIZE_UNSTABLE, &fi->state);
+
req = fuse_get_req_nopages(fc);
if (IS_ERR(req)) {
err = PTR_ERR(req);
fuse_invalidate_attr(inode);
out:
- if (lock_inode) {
- if (mode & FALLOC_FL_PUNCH_HOLE)
- fuse_release_nowrite(inode);
+ if (!(mode & FALLOC_FL_KEEP_SIZE))
+ clear_bit(FUSE_I_SIZE_UNSTABLE, &fi->state);
+
+ if (lock_inode)
mutex_unlock(&inode->i_mutex);
- }
return err;
}
enum {
/** Advise readdirplus */
FUSE_I_ADVISE_RDPLUS,
+ /** Initialized with readdirplus */
+ FUSE_I_INIT_RDPLUS,
/** An operation changing file size is in progress */
FUSE_I_SIZE_UNSTABLE,
};
if (insert_inode_locked(inode) < 0) {
rc = -EINVAL;
- goto fail_unlock;
+ goto fail_put;
}
inode_init_owner(inode, parent, mode);
fail_drop:
dquot_drop(inode);
inode->i_flags |= S_NOQUOTA;
-fail_unlock:
clear_nlink(inode);
unlock_new_inode(inode);
fail_put:
* path_mountpoint - look up a path to be umounted
* @dfd: directory file descriptor to start walk from
* @name: full pathname to walk
+ * @path: pointer to container for result
* @flags: lookup flags
*
* Look up the given name, but don't attempt to revalidate the last component.
- * Returns 0 and "path" will be valid on success; Retuns error otherwise.
+ * Returns 0 and "path" will be valid on success; Returns error otherwise.
*/
static int
path_mountpoint(int dfd, const char *name, struct path *path, unsigned int flags)
trace_nfs_atomic_open_enter(dir, ctx, open_flags);
nfs_block_sillyrename(dentry->d_parent);
- inode = NFS_PROTO(dir)->open_context(dir, ctx, open_flags, &attr);
+ inode = NFS_PROTO(dir)->open_context(dir, ctx, open_flags, &attr, opened);
nfs_unblock_sillyrename(dentry->d_parent);
if (IS_ERR(inode)) {
err = PTR_ERR(inode);
struct inode *dir;
unsigned openflags = filp->f_flags;
struct iattr attr;
+ int opened = 0;
int err;
/*
nfs_wb_all(inode);
}
- inode = NFS_PROTO(dir)->open_context(dir, ctx, openflags, &attr);
+ inode = NFS_PROTO(dir)->open_context(dir, ctx, openflags, &attr, &opened);
if (IS_ERR(inode)) {
err = PTR_ERR(inode);
switch (err) {
if (status)
goto out_put;
+ smp_wmb();
ds->ds_clp = clp;
dprintk("%s [new] addr: %s\n", __func__, ds->ds_remotestr);
out:
struct nfs4_file_layout_dsaddr *dsaddr = FILELAYOUT_LSEG(lseg)->dsaddr;
struct nfs4_pnfs_ds *ds = dsaddr->ds_list[ds_idx];
struct nfs4_deviceid_node *devid = FILELAYOUT_DEVID_NODE(lseg);
-
- if (filelayout_test_devid_unavailable(devid))
- return NULL;
+ struct nfs4_pnfs_ds *ret = ds;
if (ds == NULL) {
printk(KERN_ERR "NFS: %s: No data server for offset index %d\n",
__func__, ds_idx);
filelayout_mark_devid_invalid(devid);
- return NULL;
+ goto out;
}
+ smp_rmb();
if (ds->ds_clp)
- return ds;
+ goto out_test_devid;
if (test_and_set_bit(NFS4DS_CONNECTING, &ds->ds_state) == 0) {
struct nfs_server *s = NFS_SERVER(lseg->pls_layout->plh_inode);
int err;
err = nfs4_ds_connect(s, ds);
- if (err) {
+ if (err)
nfs4_mark_deviceid_unavailable(devid);
- ds = NULL;
- }
nfs4_clear_ds_conn_bit(ds);
} else {
/* Either ds is connected, or ds is NULL */
nfs4_wait_ds_connect(ds);
}
- return ds;
+out_test_devid:
+ if (filelayout_test_devid_unavailable(devid))
+ ret = NULL;
+out:
+ return ret;
}
module_param(dataserver_retrans, uint, 0644);
struct iattr attrs;
unsigned long timestamp;
unsigned int rpc_done : 1;
+ unsigned int file_created : 1;
unsigned int is_recover : 1;
int rpc_status;
int cancelled;
nfs_fattr_map_and_free_names(server, &data->f_attr);
- if (o_arg->open_flags & O_CREAT)
+ if (o_arg->open_flags & O_CREAT) {
update_changeattr(dir, &o_res->cinfo);
+ if (o_arg->open_flags & O_EXCL)
+ data->file_created = 1;
+ else if (o_res->cinfo.before != o_res->cinfo.after)
+ data->file_created = 1;
+ }
if ((o_res->rflags & NFS4_OPEN_RESULT_LOCKTYPE_POSIX) == 0)
server->caps &= ~NFS_CAP_POSIX_LOCK;
if(o_res->rflags & NFS4_OPEN_RESULT_CONFIRM) {
struct nfs_open_context *ctx,
int flags,
struct iattr *sattr,
- struct nfs4_label *label)
+ struct nfs4_label *label,
+ int *opened)
{
struct nfs4_state_owner *sp;
struct nfs4_state *state = NULL;
nfs_setsecurity(state->inode, opendata->o_res.f_attr, olabel);
}
}
+ if (opendata->file_created)
+ *opened |= FILE_CREATED;
if (pnfs_use_threshold(ctx_th, opendata->f_attr.mdsthreshold, server))
*ctx_th = opendata->f_attr.mdsthreshold;
struct nfs_open_context *ctx,
int flags,
struct iattr *sattr,
- struct nfs4_label *label)
+ struct nfs4_label *label,
+ int *opened)
{
struct nfs_server *server = NFS_SERVER(dir);
struct nfs4_exception exception = { };
int status;
do {
- status = _nfs4_do_open(dir, ctx, flags, sattr, label);
+ status = _nfs4_do_open(dir, ctx, flags, sattr, label, opened);
res = ctx->state;
trace_nfs4_open_file(ctx, flags, status);
if (status == 0)
}
static struct inode *
-nfs4_atomic_open(struct inode *dir, struct nfs_open_context *ctx, int open_flags, struct iattr *attr)
+nfs4_atomic_open(struct inode *dir, struct nfs_open_context *ctx,
+ int open_flags, struct iattr *attr, int *opened)
{
struct nfs4_state *state;
struct nfs4_label l = {0, 0, 0, NULL}, *label = NULL;
label = nfs4_label_init_security(dir, ctx->dentry, attr, &l);
/* Protect against concurrent sillydeletes */
- state = nfs4_do_open(dir, ctx, open_flags, attr, label);
+ state = nfs4_do_open(dir, ctx, open_flags, attr, label, opened);
nfs4_label_release_security(label);
struct nfs4_label l, *ilabel = NULL;
struct nfs_open_context *ctx;
struct nfs4_state *state;
+ int opened = 0;
int status = 0;
ctx = alloc_nfs_open_context(dentry, FMODE_READ);
ilabel = nfs4_label_init_security(dir, dentry, sattr, &l);
sattr->ia_mode &= ~current_umask();
- state = nfs4_do_open(dir, ctx, flags, sattr, ilabel);
+ state = nfs4_do_open(dir, ctx, flags, sattr, ilabel, &opened);
if (IS_ERR(state)) {
status = PTR_ERR(state);
goto out;
{
int err;
struct page *page;
- rpc_authflavor_t flavor;
+ rpc_authflavor_t flavor = RPC_AUTH_MAXFLAVOR;
struct nfs4_secinfo_flavors *flavors;
+ struct nfs4_secinfo4 *secinfo;
+ int i;
page = alloc_page(GFP_KERNEL);
if (!page) {
if (err)
goto out_freepage;
- flavor = nfs_find_best_sec(flavors);
- if (err == 0)
- err = nfs4_lookup_root_sec(server, fhandle, info, flavor);
+ for (i = 0; i < flavors->num_flavors; i++) {
+ secinfo = &flavors->flavors[i];
+
+ switch (secinfo->flavor) {
+ case RPC_AUTH_NULL:
+ case RPC_AUTH_UNIX:
+ case RPC_AUTH_GSS:
+ flavor = rpcauth_get_pseudoflavor(secinfo->flavor,
+ &secinfo->flavor_info);
+ break;
+ default:
+ flavor = RPC_AUTH_MAXFLAVOR;
+ break;
+ }
+
+ if (flavor != RPC_AUTH_MAXFLAVOR) {
+ err = nfs4_lookup_root_sec(server, fhandle,
+ info, flavor);
+ if (!err)
+ break;
+ }
+ }
+
+ if (flavor == RPC_AUTH_MAXFLAVOR)
+ err = -EPERM;
out_freepage:
put_page(page);
clear_buffer_nilfs_volatile(bh);
clear_buffer_nilfs_checked(bh);
clear_buffer_nilfs_redirected(bh);
+ clear_buffer_async_write(bh);
clear_buffer_dirty(bh);
if (nilfs_page_buffers_clean(page))
__nilfs_clear_page_dirty(page);
"discard block %llu, size %zu",
(u64)bh->b_blocknr, bh->b_size);
}
+ clear_buffer_async_write(bh);
clear_buffer_dirty(bh);
clear_buffer_nilfs_volatile(bh);
clear_buffer_nilfs_checked(bh);
bh = head = page_buffers(page);
do {
- if (!buffer_dirty(bh))
+ if (!buffer_dirty(bh) || buffer_async_write(bh))
continue;
get_bh(bh);
list_add_tail(&bh->b_assoc_buffers, listp);
for (i = 0; i < pagevec_count(&pvec); i++) {
bh = head = page_buffers(pvec.pages[i]);
do {
- if (buffer_dirty(bh)) {
+ if (buffer_dirty(bh) &&
+ !buffer_async_write(bh)) {
get_bh(bh);
list_add_tail(&bh->b_assoc_buffers,
listp);
list_for_each_entry(bh, &segbuf->sb_segsum_buffers,
b_assoc_buffers) {
+ set_buffer_async_write(bh);
if (bh->b_page != bd_page) {
if (bd_page) {
lock_page(bd_page);
list_for_each_entry(bh, &segbuf->sb_payload_buffers,
b_assoc_buffers) {
+ set_buffer_async_write(bh);
if (bh == segbuf->sb_super_root) {
if (bh->b_page != bd_page) {
lock_page(bd_page);
list_for_each_entry(segbuf, logs, sb_list) {
list_for_each_entry(bh, &segbuf->sb_segsum_buffers,
b_assoc_buffers) {
+ clear_buffer_async_write(bh);
if (bh->b_page != bd_page) {
if (bd_page)
end_page_writeback(bd_page);
list_for_each_entry(bh, &segbuf->sb_payload_buffers,
b_assoc_buffers) {
+ clear_buffer_async_write(bh);
if (bh == segbuf->sb_super_root) {
if (bh->b_page != bd_page) {
end_page_writeback(bd_page);
b_assoc_buffers) {
set_buffer_uptodate(bh);
clear_buffer_dirty(bh);
+ clear_buffer_async_write(bh);
if (bh->b_page != bd_page) {
if (bd_page)
end_page_writeback(bd_page);
b_assoc_buffers) {
set_buffer_uptodate(bh);
clear_buffer_dirty(bh);
+ clear_buffer_async_write(bh);
clear_buffer_delay(bh);
clear_buffer_nilfs_volatile(bh);
clear_buffer_nilfs_redirected(bh);
*/
if (inode == NULL) {
unsigned long gen = (unsigned long) dentry->d_fsdata;
- unsigned long pgen =
- OCFS2_I(dentry->d_parent->d_inode)->ip_dir_lock_gen;
-
+ unsigned long pgen;
+ spin_lock(&dentry->d_lock);
+ pgen = OCFS2_I(dentry->d_parent->d_inode)->ip_dir_lock_gen;
+ spin_unlock(&dentry->d_lock);
trace_ocfs2_dentry_revalidate_negative(dentry->d_name.len,
dentry->d_name.name,
pgen, gen);
{
int tmp, hangup_needed = 0;
struct ocfs2_super *osb = NULL;
- char nodestr[8];
+ char nodestr[12];
trace_ocfs2_dismount_volume(sb);
static unsigned long proc_reg_get_unmapped_area(struct file *file, unsigned long orig_addr, unsigned long len, unsigned long pgoff, unsigned long flags)
{
struct proc_dir_entry *pde = PDE(file_inode(file));
- int rv = -EIO;
- unsigned long (*get_unmapped_area)(struct file *, unsigned long, unsigned long, unsigned long, unsigned long);
+ unsigned long rv = -EIO;
+ unsigned long (*get_unmapped_area)(struct file *, unsigned long, unsigned long, unsigned long, unsigned long) = NULL;
if (use_pde(pde)) {
- get_unmapped_area = pde->proc_fops->get_unmapped_area;
+#ifdef CONFIG_MMU
+ get_unmapped_area = current->mm->get_unmapped_area;
+#endif
+ if (pde->proc_fops->get_unmapped_area)
+ get_unmapped_area = pde->proc_fops->get_unmapped_area;
if (get_unmapped_area)
rv = get_unmapped_area(file, orig_addr, len, pgoff, flags);
unuse_pde(pde);
frame = pte_pfn(pte);
flags = PM_PRESENT;
page = vm_normal_page(vma, addr, pte);
+ if (pte_soft_dirty(pte))
+ flags2 |= __PM_SOFT_DIRTY;
} else if (is_swap_pte(pte)) {
swp_entry_t entry;
if (pte_swp_soft_dirty(pte))
if (page && !PageAnon(page))
flags |= PM_FILE;
- if ((vma->vm_flags & VM_SOFTDIRTY) || pte_soft_dirty(pte))
+ if ((vma->vm_flags & VM_SOFTDIRTY))
flags2 |= __PM_SOFT_DIRTY;
*pme = make_pme(PM_PFRAME(frame) | PM_STATUS2(pm->v2, flags2) | flags);
return NULL;
}
-static int newer_jl_done(struct reiserfs_journal_cnode *cn)
-{
- struct super_block *sb = cn->sb;
- b_blocknr_t blocknr = cn->blocknr;
-
- cn = cn->hprev;
- while (cn) {
- if (cn->sb == sb && cn->blocknr == blocknr && cn->jlist &&
- atomic_read(&cn->jlist->j_commit_left) != 0)
- return 0;
- cn = cn->hprev;
- }
- return 1;
-}
-
static void remove_journal_hash(struct super_block *,
struct reiserfs_journal_cnode **,
struct reiserfs_journal_list *, unsigned long,
reiserfs_warning(s, "clm-2048", "called with wcount %d",
atomic_read(&journal->j_wcount));
}
- BUG_ON(jl->j_trans_id == 0);
/* if flushall == 0, the lock is already held */
if (flushall) {
return err;
}
-static int test_transaction(struct super_block *s,
- struct reiserfs_journal_list *jl)
-{
- struct reiserfs_journal_cnode *cn;
-
- if (jl->j_len == 0 || atomic_read(&jl->j_nonzerolen) == 0)
- return 1;
-
- cn = jl->j_realblock;
- while (cn) {
- /* if the blocknr == 0, this has been cleared from the hash,
- ** skip it
- */
- if (cn->blocknr == 0) {
- goto next;
- }
- if (cn->bh && !newer_jl_done(cn))
- return 0;
- next:
- cn = cn->next;
- cond_resched();
- }
- return 0;
-}
-
static int write_one_transaction(struct super_block *s,
struct reiserfs_journal_list *jl,
struct buffer_chunk *chunk)
break;
tjl = JOURNAL_LIST_ENTRY(tjl->j_list.next);
}
+ get_journal_list(jl);
+ get_journal_list(flush_jl);
/* try to find a group of blocks we can flush across all the
** transactions, but only bother if we've actually spanned
** across multiple lists
ret = kupdate_transactions(s, jl, &tjl, &trans_id, len, i);
}
flush_journal_list(s, flush_jl, 1);
+ put_journal_list(s, flush_jl);
+ put_journal_list(s, jl);
return 0;
}
return 1;
}
-static void flush_old_journal_lists(struct super_block *s)
-{
- struct reiserfs_journal *journal = SB_JOURNAL(s);
- struct reiserfs_journal_list *jl;
- struct list_head *entry;
- time_t now = get_seconds();
-
- while (!list_empty(&journal->j_journal_list)) {
- entry = journal->j_journal_list.next;
- jl = JOURNAL_LIST_ENTRY(entry);
- /* this check should always be run, to send old lists to disk */
- if (jl->j_timestamp < (now - (JOURNAL_MAX_TRANS_AGE * 4)) &&
- atomic_read(&jl->j_commit_left) == 0 &&
- test_transaction(s, jl)) {
- flush_used_journal_lists(s, jl);
- } else {
- break;
- }
- }
-}
-
/*
** long and ugly. If flush, will not return until all commit
** blocks and all real buffers in the trans are on disk.
}
}
}
- flush_old_journal_lists(sb);
journal->j_current_jl->j_list_bitmap =
get_list_bitmap(sb, journal->j_current_jl);
m->read_pos = offset;
retval = file->f_pos = offset;
}
+ } else {
+ file->f_pos = offset;
}
}
file->f_version = m->version;
int fd_statfs(int fd, struct kstatfs *st)
{
- struct fd f = fdget(fd);
+ struct fd f = fdget_raw(fd);
int error = -EBADF;
if (f.file) {
error = vfs_statfs(&f.file->f_path, st);
*/
static inline void destroy_super(struct super_block *s)
{
+ list_lru_destroy(&s->s_dentry_lru);
+ list_lru_destroy(&s->s_inode_lru);
#ifdef CONFIG_SMP
free_percpu(s->s_files);
#endif
/* caches are now gone, we can safely kill the shrinker now */
unregister_shrinker(&s->s_shrink);
- list_lru_destroy(&s->s_dentry_lru);
- list_lru_destroy(&s->s_inode_lru);
put_filesystem(fs);
put_super(s);
sbi->s_sb = sb;
sbi->s_block_base = 0;
sbi->s_type = FSTYPE_V7;
+ mutex_init(&sbi->s_lock);
sb->s_fs_info = sbi;
sb_set_blocksize(sb, 512);
{
struct super_block *sb = inode->i_sb;
struct udf_sb_info *sbi = UDF_SB(sb);
+ struct logicalVolIntegrityDescImpUse *lvidiu = udf_sb_lvidiu(sb);
- mutex_lock(&sbi->s_alloc_mutex);
- if (sbi->s_lvid_bh) {
- struct logicalVolIntegrityDescImpUse *lvidiu =
- udf_sb_lvidiu(sbi);
+ if (lvidiu) {
+ mutex_lock(&sbi->s_alloc_mutex);
if (S_ISDIR(inode->i_mode))
le32_add_cpu(&lvidiu->numDirs, -1);
else
le32_add_cpu(&lvidiu->numFiles, -1);
udf_updated_lvid(sb);
+ mutex_unlock(&sbi->s_alloc_mutex);
}
- mutex_unlock(&sbi->s_alloc_mutex);
udf_free_blocks(sb, NULL, &UDF_I(inode)->i_location, 0, 1);
}
uint32_t start = UDF_I(dir)->i_location.logicalBlockNum;
struct udf_inode_info *iinfo;
struct udf_inode_info *dinfo = UDF_I(dir);
+ struct logicalVolIntegrityDescImpUse *lvidiu;
inode = new_inode(sb);
return NULL;
}
- if (sbi->s_lvid_bh) {
- struct logicalVolIntegrityDescImpUse *lvidiu;
-
+ lvidiu = udf_sb_lvidiu(sb);
+ if (lvidiu) {
iinfo->i_unique = lvid_get_unique_id(sb);
mutex_lock(&sbi->s_alloc_mutex);
- lvidiu = udf_sb_lvidiu(sbi);
if (S_ISDIR(mode))
le32_add_cpu(&lvidiu->numDirs, 1);
else
static int udf_statfs(struct dentry *, struct kstatfs *);
static int udf_show_options(struct seq_file *, struct dentry *);
-struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct udf_sb_info *sbi)
+struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct super_block *sb)
{
- struct logicalVolIntegrityDesc *lvid =
- (struct logicalVolIntegrityDesc *)sbi->s_lvid_bh->b_data;
- __u32 number_of_partitions = le32_to_cpu(lvid->numOfPartitions);
- __u32 offset = number_of_partitions * 2 *
- sizeof(uint32_t)/sizeof(uint8_t);
+ struct logicalVolIntegrityDesc *lvid;
+ unsigned int partnum;
+ unsigned int offset;
+
+ if (!UDF_SB(sb)->s_lvid_bh)
+ return NULL;
+ lvid = (struct logicalVolIntegrityDesc *)UDF_SB(sb)->s_lvid_bh->b_data;
+ partnum = le32_to_cpu(lvid->numOfPartitions);
+ if ((sb->s_blocksize - sizeof(struct logicalVolIntegrityDescImpUse) -
+ offsetof(struct logicalVolIntegrityDesc, impUse)) /
+ (2 * sizeof(uint32_t)) < partnum) {
+ udf_err(sb, "Logical volume integrity descriptor corrupted "
+ "(numOfPartitions = %u)!\n", partnum);
+ return NULL;
+ }
+ /* The offset is to skip freeSpaceTable and sizeTable arrays */
+ offset = partnum * 2 * sizeof(uint32_t);
return (struct logicalVolIntegrityDescImpUse *)&(lvid->impUse[offset]);
}
struct udf_options uopt;
struct udf_sb_info *sbi = UDF_SB(sb);
int error = 0;
+ struct logicalVolIntegrityDescImpUse *lvidiu = udf_sb_lvidiu(sb);
- if (sbi->s_lvid_bh) {
- int write_rev = le16_to_cpu(udf_sb_lvidiu(sbi)->minUDFWriteRev);
+ if (lvidiu) {
+ int write_rev = le16_to_cpu(lvidiu->minUDFWriteRev);
if (write_rev > UDF_MAX_WRITE_VERSION && !(*flags & MS_RDONLY))
return -EACCES;
}
if (!bh)
return;
-
- mutex_lock(&sbi->s_alloc_mutex);
lvid = (struct logicalVolIntegrityDesc *)bh->b_data;
- lvidiu = udf_sb_lvidiu(sbi);
+ lvidiu = udf_sb_lvidiu(sb);
+ if (!lvidiu)
+ return;
+ mutex_lock(&sbi->s_alloc_mutex);
lvidiu->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
lvidiu->impIdent.identSuffix[1] = UDF_OS_ID_LINUX;
udf_time_to_disk_stamp(&lvid->recordingDateAndTime,
if (!bh)
return;
+ lvid = (struct logicalVolIntegrityDesc *)bh->b_data;
+ lvidiu = udf_sb_lvidiu(sb);
+ if (!lvidiu)
+ return;
mutex_lock(&sbi->s_alloc_mutex);
- lvid = (struct logicalVolIntegrityDesc *)bh->b_data;
- lvidiu = udf_sb_lvidiu(sbi);
lvidiu->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
lvidiu->impIdent.identSuffix[1] = UDF_OS_ID_LINUX;
udf_time_to_disk_stamp(&lvid->recordingDateAndTime, CURRENT_TIME);
if (sbi->s_lvid_bh) {
struct logicalVolIntegrityDescImpUse *lvidiu =
- udf_sb_lvidiu(sbi);
- uint16_t minUDFReadRev = le16_to_cpu(lvidiu->minUDFReadRev);
- uint16_t minUDFWriteRev = le16_to_cpu(lvidiu->minUDFWriteRev);
- /* uint16_t maxUDFWriteRev =
- le16_to_cpu(lvidiu->maxUDFWriteRev); */
+ udf_sb_lvidiu(sb);
+ uint16_t minUDFReadRev;
+ uint16_t minUDFWriteRev;
+ if (!lvidiu) {
+ ret = -EINVAL;
+ goto error_out;
+ }
+ minUDFReadRev = le16_to_cpu(lvidiu->minUDFReadRev);
+ minUDFWriteRev = le16_to_cpu(lvidiu->minUDFWriteRev);
if (minUDFReadRev > UDF_MAX_READ_VERSION) {
udf_err(sb, "minUDFReadRev=%x (max is %x)\n",
- le16_to_cpu(lvidiu->minUDFReadRev),
+ minUDFReadRev,
UDF_MAX_READ_VERSION);
ret = -EINVAL;
goto error_out;
struct logicalVolIntegrityDescImpUse *lvidiu;
u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
- if (sbi->s_lvid_bh != NULL)
- lvidiu = udf_sb_lvidiu(sbi);
- else
- lvidiu = NULL;
-
+ lvidiu = udf_sb_lvidiu(sb);
buf->f_type = UDF_SUPER_MAGIC;
buf->f_bsize = sb->s_blocksize;
buf->f_blocks = sbi->s_partmaps[sbi->s_partition].s_partition_len;
return sb->s_fs_info;
}
-struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct udf_sb_info *sbi);
+struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct super_block *sb);
int udf_compute_nr_groups(struct super_block *sb, u32 partition);
else if (aborted) {
ASSERT(XFS_FORCED_SHUTDOWN(lip->li_mountp));
if (lip->li_flags & XFS_LI_IN_AIL) {
+ spin_lock(&lip->li_ailp->xa_lock);
xfs_trans_ail_delete(lip->li_ailp, lip,
SHUTDOWN_LOG_IO_ERROR);
}
/* start with smaller blk num */
forward = nodehdr.forw < nodehdr.back;
for (i = 0; i < 2; forward = !forward, i++) {
+ struct xfs_da3_icnode_hdr thdr;
if (forward)
blkno = nodehdr.forw;
else
return(error);
node = bp->b_addr;
- xfs_da3_node_hdr_from_disk(&nodehdr, node);
+ xfs_da3_node_hdr_from_disk(&thdr, node);
xfs_trans_brelse(state->args->trans, bp);
- if (count - nodehdr.count >= 0)
+ if (count - thdr.count >= 0)
break; /* fits with at least 25% to spare */
}
if (i >= 2) {
/*
* Create entry for .
*/
- dep = xfs_dir3_data_dot_entry_p(hdr);
+ dep = xfs_dir3_data_dot_entry_p(mp, hdr);
dep->inumber = cpu_to_be64(dp->i_ino);
dep->namelen = 1;
dep->name[0] = '.';
/*
* Create entry for ..
*/
- dep = xfs_dir3_data_dotdot_entry_p(hdr);
+ dep = xfs_dir3_data_dotdot_entry_p(mp, hdr);
dep->inumber = cpu_to_be64(xfs_dir2_sf_get_parent_ino(sfp));
dep->namelen = 2;
dep->name[0] = dep->name[1] = '.';
blp[1].hashval = cpu_to_be32(xfs_dir_hash_dotdot);
blp[1].address = cpu_to_be32(xfs_dir2_byte_to_dataptr(mp,
(char *)dep - (char *)hdr));
- offset = xfs_dir3_data_first_offset(hdr);
+ offset = xfs_dir3_data_first_offset(mp);
/*
* Loop over existing entries, stuff them in.
*/
/*
* Offsets of . and .. in data space (always block 0)
*
- * The macros are used for shortform directories as they have no headers to read
- * the magic number out of. Shortform directories need to know the size of the
- * data block header because the sfe embeds the block offset of the entry into
- * it so that it doesn't change when format conversion occurs. Bad Things Happen
- * if we don't follow this rule.
- *
* XXX: there is scope for significant optimisation of the logic here. Right
* now we are checking for "dir3 format" over and over again. Ideally we should
* only do it once for each operation.
*/
-#define XFS_DIR3_DATA_DOT_OFFSET(mp) \
- xfs_dir3_data_hdr_size(xfs_sb_version_hascrc(&(mp)->m_sb))
-#define XFS_DIR3_DATA_DOTDOT_OFFSET(mp) \
- (XFS_DIR3_DATA_DOT_OFFSET(mp) + xfs_dir3_data_entsize(mp, 1))
-#define XFS_DIR3_DATA_FIRST_OFFSET(mp) \
- (XFS_DIR3_DATA_DOTDOT_OFFSET(mp) + xfs_dir3_data_entsize(mp, 2))
-
static inline xfs_dir2_data_aoff_t
-xfs_dir3_data_dot_offset(struct xfs_dir2_data_hdr *hdr)
+xfs_dir3_data_dot_offset(struct xfs_mount *mp)
{
- return xfs_dir3_data_entry_offset(hdr);
+ return xfs_dir3_data_hdr_size(xfs_sb_version_hascrc(&mp->m_sb));
}
static inline xfs_dir2_data_aoff_t
-xfs_dir3_data_dotdot_offset(struct xfs_dir2_data_hdr *hdr)
+xfs_dir3_data_dotdot_offset(struct xfs_mount *mp)
{
- bool dir3 = hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC) ||
- hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC);
- return xfs_dir3_data_dot_offset(hdr) +
- __xfs_dir3_data_entsize(dir3, 1);
+ return xfs_dir3_data_dot_offset(mp) +
+ xfs_dir3_data_entsize(mp, 1);
}
static inline xfs_dir2_data_aoff_t
-xfs_dir3_data_first_offset(struct xfs_dir2_data_hdr *hdr)
+xfs_dir3_data_first_offset(struct xfs_mount *mp)
{
- bool dir3 = hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC) ||
- hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC);
- return xfs_dir3_data_dotdot_offset(hdr) +
- __xfs_dir3_data_entsize(dir3, 2);
+ return xfs_dir3_data_dotdot_offset(mp) +
+ xfs_dir3_data_entsize(mp, 2);
}
/*
* location of . and .. in data space (always block 0)
*/
static inline struct xfs_dir2_data_entry *
-xfs_dir3_data_dot_entry_p(struct xfs_dir2_data_hdr *hdr)
+xfs_dir3_data_dot_entry_p(
+ struct xfs_mount *mp,
+ struct xfs_dir2_data_hdr *hdr)
{
return (struct xfs_dir2_data_entry *)
- ((char *)hdr + xfs_dir3_data_dot_offset(hdr));
+ ((char *)hdr + xfs_dir3_data_dot_offset(mp));
}
static inline struct xfs_dir2_data_entry *
-xfs_dir3_data_dotdot_entry_p(struct xfs_dir2_data_hdr *hdr)
+xfs_dir3_data_dotdot_entry_p(
+ struct xfs_mount *mp,
+ struct xfs_dir2_data_hdr *hdr)
{
return (struct xfs_dir2_data_entry *)
- ((char *)hdr + xfs_dir3_data_dotdot_offset(hdr));
+ ((char *)hdr + xfs_dir3_data_dotdot_offset(mp));
}
static inline struct xfs_dir2_data_entry *
-xfs_dir3_data_first_entry_p(struct xfs_dir2_data_hdr *hdr)
+xfs_dir3_data_first_entry_p(
+ struct xfs_mount *mp,
+ struct xfs_dir2_data_hdr *hdr)
{
return (struct xfs_dir2_data_entry *)
- ((char *)hdr + xfs_dir3_data_first_offset(hdr));
+ ((char *)hdr + xfs_dir3_data_first_offset(mp));
}
/*
* mp->m_dirdatablk.
*/
dot_offset = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk,
- XFS_DIR3_DATA_DOT_OFFSET(mp));
+ xfs_dir3_data_dot_offset(mp));
dotdot_offset = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk,
- XFS_DIR3_DATA_DOTDOT_OFFSET(mp));
+ xfs_dir3_data_dotdot_offset(mp));
/*
* Put . entry unless we're starting past it.
* to insert the new entry.
* If it's going to end up at the end then oldsfep will point there.
*/
- for (offset = XFS_DIR3_DATA_FIRST_OFFSET(mp),
+ for (offset = xfs_dir3_data_first_offset(mp),
oldsfep = xfs_dir2_sf_firstentry(oldsfp),
add_datasize = xfs_dir3_data_entsize(mp, args->namelen),
eof = (char *)oldsfep == &buf[old_isize];
sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data;
size = xfs_dir3_data_entsize(mp, args->namelen);
- offset = XFS_DIR3_DATA_FIRST_OFFSET(mp);
+ offset = xfs_dir3_data_first_offset(mp);
sfep = xfs_dir2_sf_firstentry(sfp);
holefit = 0;
/*
mp = dp->i_mount;
sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data;
- offset = XFS_DIR3_DATA_FIRST_OFFSET(mp);
+ offset = xfs_dir3_data_first_offset(mp);
ino = xfs_dir2_sf_get_parent_ino(sfp);
i8count = ino > XFS_DIR2_MAX_SHORT_INUM;
struct kmem_zone *xfs_qm_dqtrxzone;
static struct kmem_zone *xfs_qm_dqzone;
-static struct lock_class_key xfs_dquot_other_class;
+static struct lock_class_key xfs_dquot_group_class;
+static struct lock_class_key xfs_dquot_project_class;
/*
* This is called to free all the memory associated with a dquot
* Make sure group quotas have a different lock class than user
* quotas.
*/
- if (!(type & XFS_DQ_USER))
- lockdep_set_class(&dqp->q_qlock, &xfs_dquot_other_class);
+ switch (type) {
+ case XFS_DQ_USER:
+ /* uses the default lock class */
+ break;
+ case XFS_DQ_GROUP:
+ lockdep_set_class(&dqp->q_qlock, &xfs_dquot_group_class);
+ break;
+ case XFS_DQ_PROJ:
+ lockdep_set_class(&dqp->q_qlock, &xfs_dquot_project_class);
+ break;
+ default:
+ ASSERT(0);
+ break;
+ }
XFS_STATS_INC(xs_qm_dquot);
/* XFS_IOC_GETBIOSIZE ---- deprecated 47 */
#define XFS_IOC_GETBMAPX _IOWR('X', 56, struct getbmap)
#define XFS_IOC_ZERO_RANGE _IOW ('X', 57, struct xfs_flock64)
-#define XFS_IOC_FREE_EOFBLOCKS _IOR ('X', 58, struct xfs_eofblocks)
+#define XFS_IOC_FREE_EOFBLOCKS _IOR ('X', 58, struct xfs_fs_eofblocks)
/*
* ioctl commands that replace IRIX syssgi()'s
ip->i_itemp = NULL;
}
- /* asserts to verify all state is correct here */
- ASSERT(atomic_read(&ip->i_pincount) == 0);
- ASSERT(!spin_is_locked(&ip->i_flags_lock));
- ASSERT(!xfs_isiflocked(ip));
-
/*
* Because we use RCU freeing we need to ensure the inode always
* appears to be reclaimed with an invalid inode number when in the
ip->i_ino = 0;
spin_unlock(&ip->i_flags_lock);
+ /* asserts to verify all state is correct here */
+ ASSERT(atomic_read(&ip->i_pincount) == 0);
+ ASSERT(!xfs_isiflocked(ip));
+
call_rcu(&VFS_I(ip)->i_rcu, xfs_inode_free_callback);
}
"bad number of regions (%d) in inode log format",
in_f->ilf_size);
ASSERT(0);
+ kmem_free(ptr);
return XFS_ERROR(EIO);
}
* magic number. If we don't recognise the magic number in the buffer, then
* return a LSN of -1 so that the caller knows it was an unrecognised block and
* so can recover the buffer.
+ *
+ * Note: we cannot rely solely on magic number matches to determine that the
+ * buffer has a valid LSN - we also need to verify that it belongs to this
+ * filesystem, so we need to extract the object's LSN and compare it to that
+ * which we read from the superblock. If the UUIDs don't match, then we've got a
+ * stale metadata block from an old filesystem instance that we need to recover
+ * over the top of.
*/
static xfs_lsn_t
xlog_recover_get_buf_lsn(
__uint16_t magic16;
__uint16_t magicda;
void *blk = bp->b_addr;
+ uuid_t *uuid;
+ xfs_lsn_t lsn = -1;
/* v4 filesystems always recover immediately */
if (!xfs_sb_version_hascrc(&mp->m_sb))
case XFS_ABTB_MAGIC:
case XFS_ABTC_MAGIC:
case XFS_IBT_CRC_MAGIC:
- case XFS_IBT_MAGIC:
- return be64_to_cpu(
- ((struct xfs_btree_block *)blk)->bb_u.s.bb_lsn);
+ case XFS_IBT_MAGIC: {
+ struct xfs_btree_block *btb = blk;
+
+ lsn = be64_to_cpu(btb->bb_u.s.bb_lsn);
+ uuid = &btb->bb_u.s.bb_uuid;
+ break;
+ }
case XFS_BMAP_CRC_MAGIC:
- case XFS_BMAP_MAGIC:
- return be64_to_cpu(
- ((struct xfs_btree_block *)blk)->bb_u.l.bb_lsn);
+ case XFS_BMAP_MAGIC: {
+ struct xfs_btree_block *btb = blk;
+
+ lsn = be64_to_cpu(btb->bb_u.l.bb_lsn);
+ uuid = &btb->bb_u.l.bb_uuid;
+ break;
+ }
case XFS_AGF_MAGIC:
- return be64_to_cpu(((struct xfs_agf *)blk)->agf_lsn);
+ lsn = be64_to_cpu(((struct xfs_agf *)blk)->agf_lsn);
+ uuid = &((struct xfs_agf *)blk)->agf_uuid;
+ break;
case XFS_AGFL_MAGIC:
- return be64_to_cpu(((struct xfs_agfl *)blk)->agfl_lsn);
+ lsn = be64_to_cpu(((struct xfs_agfl *)blk)->agfl_lsn);
+ uuid = &((struct xfs_agfl *)blk)->agfl_uuid;
+ break;
case XFS_AGI_MAGIC:
- return be64_to_cpu(((struct xfs_agi *)blk)->agi_lsn);
+ lsn = be64_to_cpu(((struct xfs_agi *)blk)->agi_lsn);
+ uuid = &((struct xfs_agi *)blk)->agi_uuid;
+ break;
case XFS_SYMLINK_MAGIC:
- return be64_to_cpu(((struct xfs_dsymlink_hdr *)blk)->sl_lsn);
+ lsn = be64_to_cpu(((struct xfs_dsymlink_hdr *)blk)->sl_lsn);
+ uuid = &((struct xfs_dsymlink_hdr *)blk)->sl_uuid;
+ break;
case XFS_DIR3_BLOCK_MAGIC:
case XFS_DIR3_DATA_MAGIC:
case XFS_DIR3_FREE_MAGIC:
- return be64_to_cpu(((struct xfs_dir3_blk_hdr *)blk)->lsn);
+ lsn = be64_to_cpu(((struct xfs_dir3_blk_hdr *)blk)->lsn);
+ uuid = &((struct xfs_dir3_blk_hdr *)blk)->uuid;
+ break;
case XFS_ATTR3_RMT_MAGIC:
- return be64_to_cpu(((struct xfs_attr3_rmt_hdr *)blk)->rm_lsn);
+ lsn = be64_to_cpu(((struct xfs_attr3_rmt_hdr *)blk)->rm_lsn);
+ uuid = &((struct xfs_attr3_rmt_hdr *)blk)->rm_uuid;
+ break;
case XFS_SB_MAGIC:
- return be64_to_cpu(((struct xfs_dsb *)blk)->sb_lsn);
+ lsn = be64_to_cpu(((struct xfs_dsb *)blk)->sb_lsn);
+ uuid = &((struct xfs_dsb *)blk)->sb_uuid;
+ break;
default:
break;
}
+ if (lsn != (xfs_lsn_t)-1) {
+ if (!uuid_equal(&mp->m_sb.sb_uuid, uuid))
+ goto recover_immediately;
+ return lsn;
+ }
+
magicda = be16_to_cpu(((struct xfs_da_blkinfo *)blk)->magic);
switch (magicda) {
case XFS_DIR3_LEAF1_MAGIC:
case XFS_DIR3_LEAFN_MAGIC:
case XFS_DA3_NODE_MAGIC:
- return be64_to_cpu(((struct xfs_da3_blkinfo *)blk)->lsn);
+ lsn = be64_to_cpu(((struct xfs_da3_blkinfo *)blk)->lsn);
+ uuid = &((struct xfs_da3_blkinfo *)blk)->uuid;
+ break;
default:
break;
}
+ if (lsn != (xfs_lsn_t)-1) {
+ if (!uuid_equal(&mp->m_sb.sb_uuid, uuid))
+ goto recover_immediately;
+ return lsn;
+ }
+
/*
* We do individual object checks on dquot and inode buffers as they
* have their own individual LSN records. Also, we could have a stale
#define AE_NO_HANDLER EXCEP_ENV (0x001A)
#define AE_OWNER_ID_LIMIT EXCEP_ENV (0x001B)
#define AE_NOT_CONFIGURED EXCEP_ENV (0x001C)
+#define AE_ACCESS EXCEP_ENV (0x001D)
-#define AE_CODE_ENV_MAX 0x001C
+#define AE_CODE_ENV_MAX 0x001D
/*
* Programmer exceptions
EXCEP_TXT("AE_NO_ACPI_TABLES", "ACPI tables could not be found"),
EXCEP_TXT("AE_NO_NAMESPACE", "A namespace has not been loaded"),
EXCEP_TXT("AE_NO_MEMORY", "Insufficient dynamic memory"),
- EXCEP_TXT("AE_NOT_FOUND", "The name was not found in the namespace"),
+ EXCEP_TXT("AE_NOT_FOUND", "A requested entity is not found"),
EXCEP_TXT("AE_NOT_EXIST", "A required entity does not exist"),
EXCEP_TXT("AE_ALREADY_EXISTS", "An entity already exists"),
EXCEP_TXT("AE_TYPE", "The object type is incorrect"),
EXCEP_TXT("AE_OWNER_ID_LIMIT",
"There are no more Owner IDs available for ACPI tables or control methods"),
EXCEP_TXT("AE_NOT_CONFIGURED",
- "The interface is not part of the current subsystem configuration")
+ "The interface is not part of the current subsystem configuration"),
+ EXCEP_TXT("AE_ACCESS", "Permission denied for the requested operation")
};
static const struct acpi_exception_info acpi_gbl_exception_names_pgm[] = {
u32 power_resources:1; /* Power resources */
u32 inrush_current:1; /* Serialize Dx->D0 */
u32 power_removed:1; /* Optimize Dx->D0 */
- u32 reserved:28;
+ u32 ignore_parent:1; /* Power is independent of parent power state */
+ u32 reserved:27;
};
struct acpi_device_power_state {
unsigned int physical_node_count;
struct list_head physical_node_list;
struct mutex physical_node_lock;
- struct list_head power_dependent;
void (*remove)(struct acpi_device *);
};
acpi_status acpi_remove_pm_notifier(struct acpi_device *adev,
acpi_notify_handler handler);
int acpi_pm_device_sleep_state(struct device *, int *, int);
-void acpi_dev_pm_add_dependent(acpi_handle handle, struct device *depdev);
-void acpi_dev_pm_remove_dependent(acpi_handle handle, struct device *depdev);
#else
static inline acpi_status acpi_add_pm_notifier(struct acpi_device *adev,
acpi_notify_handler handler,
return (m >= ACPI_STATE_D0 && m <= ACPI_STATE_D3_COLD) ?
m : ACPI_STATE_D0;
}
-static inline void acpi_dev_pm_add_dependent(acpi_handle handle,
- struct device *depdev) {}
-static inline void acpi_dev_pm_remove_dependent(acpi_handle handle,
- struct device *depdev) {}
#endif
#ifdef CONFIG_PM_RUNTIME
/* Current ACPICA subsystem version in YYYYMMDD format */
-#define ACPI_CA_VERSION 0x20130725
+#define ACPI_CA_VERSION 0x20130823
#include <acpi/acconfig.h>
#include <acpi/actypes.h>
acpi_install_initialization_handler(acpi_init_handler handler, u32 function);
ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
- acpi_install_global_event_handler
- (acpi_gbl_event_handler handler, void *context))
-
+ acpi_install_sci_handler(acpi_sci_handler
+ address,
+ void *context))
+ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
+ acpi_remove_sci_handler(acpi_sci_handler
+ address))
+ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
+ acpi_install_global_event_handler
+ (acpi_gbl_event_handler handler,
+ void *context))
ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
acpi_install_fixed_event_handler(u32
acpi_event,
#define ACPI_MOVE_NAME(dest,src) (ACPI_STRNCPY (ACPI_CAST_PTR (char, (dest)), ACPI_CAST_PTR (char, (src)), ACPI_NAME_SIZE))
#endif
+/* Support for the special RSDP signature (8 characters) */
+
+#define ACPI_VALIDATE_RSDP_SIG(a) (!ACPI_STRNCMP (ACPI_CAST_PTR (char, (a)), ACPI_SIG_RSDP, 8))
+#define ACPI_MAKE_RSDP_SIG(dest) (ACPI_MEMCPY (ACPI_CAST_PTR (char, (dest)), ACPI_SIG_RSDP, 8))
+
/*******************************************************************************
*
* Miscellaneous constants
/*
* Various handlers and callback procedures
*/
+typedef
+u32 (*acpi_sci_handler) (void *context);
+
typedef
void (*acpi_gbl_event_handler) (u32 event_type,
acpi_handle device,
#define ACPI_FLUSH_CPU_CACHE()
#define ACPI_CAST_PTHREAD_T(pthread) ((acpi_thread_id) (pthread))
-#if defined(__ia64__) || defined(__x86_64__)
+#if defined(__ia64__) || defined(__x86_64__) || defined(__aarch64__)
#define ACPI_MACHINE_WIDTH 64
#define COMPILER_DEPENDENT_INT64 long
#define COMPILER_DEPENDENT_UINT64 unsigned long
return mk_pte(page, pgprot);
}
-static inline int huge_pte_write(pte_t pte)
+static inline unsigned long huge_pte_write(pte_t pte)
{
return pte_write(pte);
}
-static inline int huge_pte_dirty(pte_t pte)
+static inline unsigned long huge_pte_dirty(pte_t pte)
{
return pte_dirty(pte);
}
+/* no content, but patch(1) dislikes empty files */
#define PULL_UP (1 << 4)
#define ALTELECTRICALSEL (1 << 5)
-/* 34xx specific mux bit defines */
+/* omap3/4/5 specific mux bit defines */
#define INPUT_EN (1 << 8)
#define OFF_EN (1 << 9)
#define OFFOUT_EN (1 << 10)
#define OFF_PULL_EN (1 << 12)
#define OFF_PULL_UP (1 << 13)
#define WAKEUP_EN (1 << 14)
-
-/* 44xx specific mux bit defines */
#define WAKEUP_EVENT (1 << 15)
/* Active pin states */
/* The framebuffer notifier block */
struct notifier_block fb_notif;
+ /* list entry of all registered backlight devices */
+ struct list_head entry;
+
struct device dev;
};
struct backlight_device *bd);
extern void backlight_force_update(struct backlight_device *bd,
enum backlight_update_reason reason);
+extern bool backlight_device_registered(enum backlight_type type);
#define to_backlight_device(obj) container_of(obj, struct backlight_device, dev)
return false;
}
+/*
+ * isolated_balloon_page - identify an isolated balloon page on private
+ * compaction/migration page lists.
+ *
+ * After a compaction thread isolates a balloon page for migration, it raises
+ * the page refcount to prevent concurrent compaction threads from re-isolating
+ * the same page. For that reason putback_movable_pages(), or other routines
+ * that need to identify isolated balloon pages on private pagelists, cannot
+ * rely on balloon_page_movable() to accomplish the task.
+ */
+static inline bool isolated_balloon_page(struct page *page)
+{
+ /* Already isolated balloon pages, by default, have a raised refcount */
+ if (page_flags_cleared(page) && !page_mapped(page) &&
+ page_count(page) >= 2)
+ return __is_movable_balloon_page(page);
+
+ return false;
+}
+
/*
* balloon_page_insert - insert a page into the balloon's page list and make
* the page->mapping assignment accordingly.
return false;
}
+static inline bool isolated_balloon_page(struct page *page)
+{
+ return false;
+}
+
static inline bool balloon_page_isolate(struct page *page)
{
return false;
struct bcma_device *core, bool enable);
extern void bcma_core_pci_up(struct bcma_bus *bus);
extern void bcma_core_pci_down(struct bcma_bus *bus);
+extern void bcma_core_pci_power_save(struct bcma_bus *bus, bool up);
extern int bcma_core_pci_pcibios_map_irq(const struct pci_dev *dev);
extern int bcma_core_pci_plat_dev_init(struct pci_dev *dev);
#ifdef __KERNEL__
#define BIT(nr) (1UL << (nr))
+#define BIT_ULL(nr) (1ULL << (nr))
#define BIT_MASK(nr) (1UL << ((nr) % BITS_PER_LONG))
#define BIT_WORD(nr) ((nr) / BITS_PER_LONG)
+#define BIT_ULL_MASK(nr) (1ULL << ((nr) % BITS_PER_LONG_LONG))
+#define BIT_ULL_WORD(nr) ((nr) / BITS_PER_LONG_LONG)
#define BITS_PER_BYTE 8
#define BITS_TO_LONGS(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))
#endif
#define __visible __attribute__((externally_visible))
#endif
+/*
+ * GCC 'asm goto' miscompiles certain code sequences:
+ *
+ * http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670
+ *
+ * Work it around via a compiler barrier quirk suggested by Jakub Jelinek.
+ * Fixed in GCC 4.8.2 and later versions.
+ *
+ * (asm goto is automatically volatile - the naming reflects this.)
+ */
+#if GCC_VERSION <= 40801
+# define asm_volatile_goto(x...) do { asm goto(x); asm (""); } while (0)
+#else
+# define asm_volatile_goto(x...) do { asm goto(x); } while (0)
+#endif
#ifdef CONFIG_ARCH_USE_BUILTIN_BSWAP
#if GCC_VERSION >= 40400
void clear_tasks_mm_cpumask(int cpu);
int cpu_down(unsigned int cpu);
-#ifdef CONFIG_ARCH_CPU_PROBE_RELEASE
-extern void cpu_hotplug_driver_lock(void);
-extern void cpu_hotplug_driver_unlock(void);
-#else
-static inline void cpu_hotplug_driver_lock(void)
-{
-}
-
-static inline void cpu_hotplug_driver_unlock(void)
-{
-}
-#endif
-
#else /* CONFIG_HOTPLUG_CPU */
static inline void cpu_hotplug_begin(void) {}
struct list_head policy_list;
struct kobject kobj;
struct completion kobj_unregister;
+
+ /*
+ * The rules for this semaphore:
+ * - Any routine that wants to read from the policy structure will
+ * do a down_read on this semaphore.
+ * - Any routine that will write to the policy structure and/or may take away
+ * the policy altogether (eg. CPU hotplug), will hold this lock in write
+ * mode before doing so.
+ *
+ * Additional rules:
+ * - Lock should not be held across
+ * __cpufreq_governor(data, CPUFREQ_GOV_POLICY_EXIT);
+ */
+ struct rw_semaphore rwsem;
};
/* Only for ACPI */
struct cpufreq_driver {
char name[CPUFREQ_NAME_LEN];
u8 flags;
- /*
- * This should be set by platforms having multiple clock-domains, i.e.
- * supporting multiple policies. With this sysfs directories of governor
- * would be created in cpu/cpu<num>/cpufreq/ directory and so they can
- * use the same governor with different tunables for different clusters.
- */
- bool have_governor_per_policy;
/* needed by all drivers */
int (*init) (struct cpufreq_policy *policy);
/* define one out of two */
int (*setpolicy) (struct cpufreq_policy *policy);
- int (*target) (struct cpufreq_policy *policy,
+ int (*target) (struct cpufreq_policy *policy, /* Deprecated */
unsigned int target_freq,
unsigned int relation);
+ int (*target_index) (struct cpufreq_policy *policy,
+ unsigned int index);
/* should be defined, if possible */
unsigned int (*get) (unsigned int cpu);
};
/* flags */
-#define CPUFREQ_STICKY 0x01 /* the driver isn't removed even if
- * all ->init() calls failed */
-#define CPUFREQ_CONST_LOOPS 0x02 /* loops_per_jiffy or other kernel
- * "constants" aren't affected by
- * frequency transitions */
-#define CPUFREQ_PM_NO_WARN 0x04 /* don't warn on suspend/resume speed
- * mismatches */
+#define CPUFREQ_STICKY (1 << 0) /* driver isn't removed even if
+ all ->init() calls failed */
+#define CPUFREQ_CONST_LOOPS (1 << 1) /* loops_per_jiffy or other
+ kernel "constants" aren't
+ affected by frequency
+ transitions */
+#define CPUFREQ_PM_NO_WARN (1 << 2) /* don't warn on suspend/resume
+ speed mismatches */
+
+/*
+ * This should be set by platforms having multiple clock-domains, i.e.
+ * supporting multiple policies. With this sysfs directories of governor would
+ * be created in cpu/cpu<num>/cpufreq/ directory and so they can use the same
+ * governor with different tunables for different clusters.
+ */
+#define CPUFREQ_HAVE_GOVERNOR_PER_POLICY (1 << 3)
int cpufreq_register_driver(struct cpufreq_driver *driver_data);
int cpufreq_unregister_driver(struct cpufreq_driver *driver_data);
return;
}
+static inline void
+cpufreq_verify_within_cpu_limits(struct cpufreq_policy *policy)
+{
+ cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
+ policy->cpuinfo.max_freq);
+}
+
/*********************************************************************
* CPUFREQ NOTIFIER INTERFACE *
*********************************************************************/
int cpufreq_frequency_table_verify(struct cpufreq_policy *policy,
struct cpufreq_frequency_table *table);
+int cpufreq_generic_frequency_table_verify(struct cpufreq_policy *policy);
int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
struct cpufreq_frequency_table *table,
/* the following are really really optional */
extern struct freq_attr cpufreq_freq_attr_scaling_available_freqs;
+extern struct freq_attr *cpufreq_generic_attr[];
void cpufreq_frequency_table_get_attr(struct cpufreq_frequency_table *table,
unsigned int cpu);
void cpufreq_frequency_table_put_attr(unsigned int cpu);
+int cpufreq_table_validate_and_show(struct cpufreq_policy *policy,
+ struct cpufreq_frequency_table *table);
+
+int cpufreq_generic_init(struct cpufreq_policy *policy,
+ struct cpufreq_frequency_table *table,
+ unsigned int transition_latency);
+static inline int cpufreq_generic_exit(struct cpufreq_policy *policy)
+{
+ cpufreq_frequency_table_put_attr(policy->cpu);
+ return 0;
+}
#endif /* _LINUX_CPUFREQ_H */
#include <linux/device.h>
#include <linux/notifier.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
#define DEVFREQ_NAME_LEN 16
extern int devfreq_resume_device(struct devfreq *devfreq);
/* Helper functions for devfreq user device driver with OPP. */
-extern struct opp *devfreq_recommended_opp(struct device *dev,
+extern struct dev_pm_opp *devfreq_recommended_opp(struct device *dev,
unsigned long *freq, u32 flags);
extern int devfreq_register_opp_notifier(struct device *dev,
struct devfreq *devfreq);
return 0;
}
-static inline struct opp *devfreq_recommended_opp(struct device *dev,
+static inline struct dev_pm_opp *devfreq_recommended_opp(struct device *dev,
unsigned long *freq, u32 flags)
{
return ERR_PTR(-EINVAL);
union map_info *dm_get_mapinfo(struct bio *bio);
union map_info *dm_get_rq_mapinfo(struct request *rq);
+struct queue_limits *dm_get_queue_limits(struct mapped_device *md);
+
/*
* Geometry functions.
*/
int dm_get_geometry(struct mapped_device *md, struct hd_geometry *geo);
int dm_set_geometry(struct mapped_device *md, struct hd_geometry *geo);
-
/*-----------------------------------------------------------------
* Functions for manipulating device-mapper tables.
*---------------------------------------------------------------*/
#include <linux/atomic.h>
#include <linux/compat.h>
+#include <linux/workqueue.h>
#include <uapi/linux/filter.h>
#ifdef CONFIG_COMPAT
{
atomic_t refcnt;
unsigned int len; /* Number of filter blocks */
+ struct rcu_head rcu;
unsigned int (*bpf_func)(const struct sk_buff *skb,
const struct sock_filter *filter);
- struct rcu_head rcu;
- struct sock_filter insns[0];
+ union {
+ struct sock_filter insns[0];
+ struct work_struct work;
+ };
};
-static inline unsigned int sk_filter_len(const struct sk_filter *fp)
+static inline unsigned int sk_filter_size(unsigned int proglen)
{
- return fp->len * sizeof(struct sock_filter) + sizeof(*fp);
+ return max(sizeof(struct sk_filter),
+ offsetof(struct sk_filter, insns[proglen]));
}
extern int sk_filter(struct sock *sk, struct sk_buff *skb);
}
#define SK_RUN_FILTER(FILTER, SKB) (*FILTER->bpf_func)(SKB, FILTER->insns)
#else
+#include <linux/slab.h>
static inline void bpf_jit_compile(struct sk_filter *fp)
{
}
static inline void bpf_jit_free(struct sk_filter *fp)
{
+ kfree(fp);
}
#define SK_RUN_FILTER(FILTER, SKB) sk_run_filter(SKB, FILTER->insns)
#endif
/*
* Framework version for util services.
*/
+#define UTIL_FW_MINOR 0
+
+#define UTIL_WS2K8_FW_MAJOR 1
+#define UTIL_WS2K8_FW_VERSION (UTIL_WS2K8_FW_MAJOR << 16 | UTIL_FW_MINOR)
#define UTIL_FW_MAJOR 3
-#define UTIL_FW_MINOR 0
-#define UTIL_FW_MAJOR_MINOR (UTIL_FW_MAJOR << 16 | UTIL_FW_MINOR)
+#define UTIL_FW_VERSION (UTIL_FW_MAJOR << 16 | UTIL_FW_MINOR)
/*
#define DMAR_IQT_REG 0x88 /* Invalidation queue tail register */
#define DMAR_IQ_SHIFT 4 /* Invalidation queue head/tail shift */
#define DMAR_IQA_REG 0x90 /* Invalidation queue addr register */
-#define DMAR_ICS_REG 0x98 /* Invalidation complete status register */
+#define DMAR_ICS_REG 0x9c /* Invalidation complete status register */
#define DMAR_IRTA_REG 0xb8 /* Interrupt remapping table addr register */
#define OFFSET_STRIDE (9)
return buf;
}
+extern const char hex_asc_upper[];
+#define hex_asc_upper_lo(x) hex_asc_upper[((x) & 0x0f)]
+#define hex_asc_upper_hi(x) hex_asc_upper[((x) & 0xf0) >> 4]
+
+static inline char *hex_byte_pack_upper(char *buf, u8 byte)
+{
+ *buf++ = hex_asc_upper_hi(byte);
+ *buf++ = hex_asc_upper_lo(byte);
+ return buf;
+}
+
static inline char * __deprecated pack_hex_byte(char *buf, u8 byte)
{
return hex_byte_pack(buf, byte);
unsigned int generation;
};
-enum mem_cgroup_filter_t {
- VISIT, /* visit current node */
- SKIP, /* skip the current node and continue traversal */
- SKIP_TREE, /* skip the whole subtree and continue traversal */
-};
-
-/*
- * mem_cgroup_filter_t predicate might instruct mem_cgroup_iter_cond how to
- * iterate through the hierarchy tree. Each tree element is checked by the
- * predicate before it is returned by the iterator. If a filter returns
- * SKIP or SKIP_TREE then the iterator code continues traversal (with the
- * next node down the hierarchy or the next node that doesn't belong under the
- * memcg's subtree).
- */
-typedef enum mem_cgroup_filter_t
-(*mem_cgroup_iter_filter)(struct mem_cgroup *memcg, struct mem_cgroup *root);
-
#ifdef CONFIG_MEMCG
/*
* All "charge" functions with gfp_mask should use GFP_KERNEL or
extern void mem_cgroup_end_migration(struct mem_cgroup *memcg,
struct page *oldpage, struct page *newpage, bool migration_ok);
-struct mem_cgroup *mem_cgroup_iter_cond(struct mem_cgroup *root,
- struct mem_cgroup *prev,
- struct mem_cgroup_reclaim_cookie *reclaim,
- mem_cgroup_iter_filter cond);
-
-static inline struct mem_cgroup *mem_cgroup_iter(struct mem_cgroup *root,
- struct mem_cgroup *prev,
- struct mem_cgroup_reclaim_cookie *reclaim)
-{
- return mem_cgroup_iter_cond(root, prev, reclaim, NULL);
-}
-
+struct mem_cgroup *mem_cgroup_iter(struct mem_cgroup *,
+ struct mem_cgroup *,
+ struct mem_cgroup_reclaim_cookie *);
void mem_cgroup_iter_break(struct mem_cgroup *, struct mem_cgroup *);
/*
extern void mem_cgroup_replace_page_cache(struct page *oldpage,
struct page *newpage);
-/**
- * mem_cgroup_toggle_oom - toggle the memcg OOM killer for the current task
- * @new: true to enable, false to disable
- *
- * Toggle whether a failed memcg charge should invoke the OOM killer
- * or just return -ENOMEM. Returns the previous toggle state.
- *
- * NOTE: Any path that enables the OOM killer before charging must
- * call mem_cgroup_oom_synchronize() afterward to finalize the
- * OOM handling and clean up.
- */
-static inline bool mem_cgroup_toggle_oom(bool new)
+static inline void mem_cgroup_oom_enable(void)
{
- bool old;
-
- old = current->memcg_oom.may_oom;
- current->memcg_oom.may_oom = new;
-
- return old;
+ WARN_ON(current->memcg_oom.may_oom);
+ current->memcg_oom.may_oom = 1;
}
-static inline void mem_cgroup_enable_oom(void)
+static inline void mem_cgroup_oom_disable(void)
{
- bool old = mem_cgroup_toggle_oom(true);
-
- WARN_ON(old == true);
-}
-
-static inline void mem_cgroup_disable_oom(void)
-{
- bool old = mem_cgroup_toggle_oom(false);
-
- WARN_ON(old == false);
+ WARN_ON(!current->memcg_oom.may_oom);
+ current->memcg_oom.may_oom = 0;
}
static inline bool task_in_memcg_oom(struct task_struct *p)
{
- return p->memcg_oom.in_memcg_oom;
+ return p->memcg_oom.memcg;
}
-bool mem_cgroup_oom_synchronize(void);
+bool mem_cgroup_oom_synchronize(bool wait);
#ifdef CONFIG_MEMCG_SWAP
extern int do_swap_account;
mem_cgroup_update_page_stat(page, idx, -1);
}
-enum mem_cgroup_filter_t
-mem_cgroup_soft_reclaim_eligible(struct mem_cgroup *memcg,
- struct mem_cgroup *root);
+unsigned long mem_cgroup_soft_limit_reclaim(struct zone *zone, int order,
+ gfp_t gfp_mask,
+ unsigned long *total_scanned);
void __mem_cgroup_count_vm_event(struct mm_struct *mm, enum vm_event_item idx);
static inline void mem_cgroup_count_vm_event(struct mm_struct *mm,
struct page *oldpage, struct page *newpage, bool migration_ok)
{
}
-static inline struct mem_cgroup *
-mem_cgroup_iter_cond(struct mem_cgroup *root,
- struct mem_cgroup *prev,
- struct mem_cgroup_reclaim_cookie *reclaim,
- mem_cgroup_iter_filter cond)
-{
- /* first call must return non-NULL, second return NULL */
- return (struct mem_cgroup *)(unsigned long)!prev;
-}
static inline struct mem_cgroup *
mem_cgroup_iter(struct mem_cgroup *root,
{
}
-static inline bool mem_cgroup_toggle_oom(bool new)
+static inline void mem_cgroup_oom_enable(void)
{
- return false;
}
-static inline void mem_cgroup_enable_oom(void)
-{
-}
-
-static inline void mem_cgroup_disable_oom(void)
+static inline void mem_cgroup_oom_disable(void)
{
}
return false;
}
-static inline bool mem_cgroup_oom_synchronize(void)
+static inline bool mem_cgroup_oom_synchronize(bool wait)
{
return false;
}
}
static inline
-enum mem_cgroup_filter_t
-mem_cgroup_soft_reclaim_eligible(struct mem_cgroup *memcg,
- struct mem_cgroup *root)
+unsigned long mem_cgroup_soft_limit_reclaim(struct zone *zone, int order,
+ gfp_t gfp_mask,
+ unsigned long *total_scanned)
{
- return VISIT;
+ return 0;
}
static inline void mem_cgroup_split_huge_fixup(struct page *head)
#define MAPPER_CTRL_MINOR 236
#define LOOP_CTRL_MINOR 237
#define VHOST_NET_MINOR 238
+#define UHID_MINOR 239
#define MISC_DYNAMIC_MINOR 255
struct device;
MLX5_DEV_CAP_FLAG_TLP_HINTS = 1LL << 39,
MLX5_DEV_CAP_FLAG_SIG_HAND_OVER = 1LL << 40,
MLX5_DEV_CAP_FLAG_DCT = 1LL << 41,
- MLX5_DEV_CAP_FLAG_CMDIF_CSUM = 1LL << 46,
+ MLX5_DEV_CAP_FLAG_CMDIF_CSUM = 3LL << 46,
};
enum {
struct health_buffer health;
__be32 rsvd2[884];
__be32 health_counter;
- __be32 rsvd3[1023];
+ __be32 rsvd3[1019];
__be64 ieee1588_clk;
__be32 ieee1588_clk_type;
__be32 clr_intx;
};
enum {
- MLX5_MAX_EQ_NAME = 20
+ MLX5_MAX_EQ_NAME = 32
};
enum {
enum {
MLX5_PROF_MASK_QP_SIZE = (u64)1 << 0,
- MLX5_PROF_MASK_CMDIF_CSUM = (u64)1 << 1,
- MLX5_PROF_MASK_MR_CACHE = (u64)1 << 2,
+ MLX5_PROF_MASK_MR_CACHE = (u64)1 << 1,
};
enum {
struct mlx5_profile {
u64 mask;
u32 log_max_qp;
- int cmdif_csum;
struct {
int size;
int limit;
#include <linux/spinlock_types.h>
#include <linux/linkage.h>
#include <linux/lockdep.h>
-
#include <linux/atomic.h>
+#include <asm/processor.h>
/*
* Simple, straightforward mutexes with strict semantics:
extern int atomic_dec_and_mutex_lock(atomic_t *cnt, struct mutex *lock);
-#ifndef CONFIG_HAVE_ARCH_MUTEX_CPU_RELAX
-#define arch_mutex_cpu_relax() cpu_relax()
+#ifndef arch_mutex_cpu_relax
+# define arch_mutex_cpu_relax() cpu_relax()
#endif
#endif
}
#ifdef CONFIG_XPS
-extern int netif_set_xps_queue(struct net_device *dev, struct cpumask *mask,
+extern int netif_set_xps_queue(struct net_device *dev,
+ const struct cpumask *mask,
u16 index);
#else
static inline int netif_set_xps_queue(struct net_device *dev,
- struct cpumask *mask,
+ const struct cpumask *mask,
u16 index)
{
return 0;
struct inode * (*open_context) (struct inode *dir,
struct nfs_open_context *ctx,
int open_flags,
- struct iattr *iattr);
+ struct iattr *iattr,
+ int *);
int (*have_delegation)(struct inode *, fmode_t);
int (*return_delegation)(struct inode *);
struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *);
#ifndef __OF_IRQ_H
#define __OF_IRQ_H
-#if defined(CONFIG_OF)
-struct of_irq;
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/irq.h>
#include <linux/ioport.h>
#include <linux/of.h>
-/*
- * irq_of_parse_and_map() is used by all OF enabled platforms; but SPARC
- * implements it differently. However, the prototype is the same for all,
- * so declare it here regardless of the CONFIG_OF_IRQ setting.
- */
-extern unsigned int irq_of_parse_and_map(struct device_node *node, int index);
-
-#if defined(CONFIG_OF_IRQ)
/**
* of_irq - container for device_node/irq_specifier pair for an irq controller
* @controller: pointer to interrupt controller device tree node
extern int of_irq_count(struct device_node *dev);
extern int of_irq_to_resource_table(struct device_node *dev,
struct resource *res, int nr_irqs);
-extern struct device_node *of_irq_find_parent(struct device_node *child);
extern void of_irq_init(const struct of_device_id *matches);
-#endif /* CONFIG_OF_IRQ */
+#if defined(CONFIG_OF)
+/*
+ * irq_of_parse_and_map() is used by all OF enabled platforms; but SPARC
+ * implements it differently. However, the prototype is the same for all,
+ * so declare it here regardless of the CONFIG_OF_IRQ setting.
+ */
+extern unsigned int irq_of_parse_and_map(struct device_node *node, int index);
+extern struct device_node *of_irq_find_parent(struct device_node *child);
#else /* !CONFIG_OF */
static inline unsigned int irq_of_parse_and_map(struct device_node *dev,
+++ /dev/null
-#ifndef __OF_RESERVED_MEM_H
-#define __OF_RESERVED_MEM_H
-
-#ifdef CONFIG_OF_RESERVED_MEM
-void of_reserved_mem_device_init(struct device *dev);
-void of_reserved_mem_device_release(struct device *dev);
-void early_init_dt_scan_reserved_mem(void);
-#else
-static inline void of_reserved_mem_device_init(struct device *dev) { }
-static inline void of_reserved_mem_device_release(struct device *dev) { }
-static inline void early_init_dt_scan_reserved_mem(void) { }
-#endif
-
-#endif /* __OF_RESERVED_MEM_H */
+++ /dev/null
-/*
- * Generic OPP Interface
- *
- * Copyright (C) 2009-2010 Texas Instruments Incorporated.
- * Nishanth Menon
- * Romit Dasgupta
- * Kevin Hilman
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef __LINUX_OPP_H__
-#define __LINUX_OPP_H__
-
-#include <linux/err.h>
-#include <linux/cpufreq.h>
-#include <linux/notifier.h>
-
-struct opp;
-struct device;
-
-enum opp_event {
- OPP_EVENT_ADD, OPP_EVENT_ENABLE, OPP_EVENT_DISABLE,
-};
-
-#if defined(CONFIG_PM_OPP)
-
-unsigned long opp_get_voltage(struct opp *opp);
-
-unsigned long opp_get_freq(struct opp *opp);
-
-int opp_get_opp_count(struct device *dev);
-
-struct opp *opp_find_freq_exact(struct device *dev, unsigned long freq,
- bool available);
-
-struct opp *opp_find_freq_floor(struct device *dev, unsigned long *freq);
-
-struct opp *opp_find_freq_ceil(struct device *dev, unsigned long *freq);
-
-int opp_add(struct device *dev, unsigned long freq, unsigned long u_volt);
-
-int opp_enable(struct device *dev, unsigned long freq);
-
-int opp_disable(struct device *dev, unsigned long freq);
-
-struct srcu_notifier_head *opp_get_notifier(struct device *dev);
-#else
-static inline unsigned long opp_get_voltage(struct opp *opp)
-{
- return 0;
-}
-
-static inline unsigned long opp_get_freq(struct opp *opp)
-{
- return 0;
-}
-
-static inline int opp_get_opp_count(struct device *dev)
-{
- return 0;
-}
-
-static inline struct opp *opp_find_freq_exact(struct device *dev,
- unsigned long freq, bool available)
-{
- return ERR_PTR(-EINVAL);
-}
-
-static inline struct opp *opp_find_freq_floor(struct device *dev,
- unsigned long *freq)
-{
- return ERR_PTR(-EINVAL);
-}
-
-static inline struct opp *opp_find_freq_ceil(struct device *dev,
- unsigned long *freq)
-{
- return ERR_PTR(-EINVAL);
-}
-
-static inline int opp_add(struct device *dev, unsigned long freq,
- unsigned long u_volt)
-{
- return -EINVAL;
-}
-
-static inline int opp_enable(struct device *dev, unsigned long freq)
-{
- return 0;
-}
-
-static inline int opp_disable(struct device *dev, unsigned long freq)
-{
- return 0;
-}
-
-static inline struct srcu_notifier_head *opp_get_notifier(struct device *dev)
-{
- return ERR_PTR(-EINVAL);
-}
-#endif /* CONFIG_PM_OPP */
-
-#if defined(CONFIG_PM_OPP) && defined(CONFIG_OF)
-int of_init_opp_table(struct device *dev);
-#else
-static inline int of_init_opp_table(struct device *dev)
-{
- return -EINVAL;
-}
-#endif
-
-#if defined(CONFIG_CPU_FREQ) && defined(CONFIG_PM_OPP)
-int opp_init_cpufreq_table(struct device *dev,
- struct cpufreq_frequency_table **table);
-void opp_free_cpufreq_table(struct device *dev,
- struct cpufreq_frequency_table **table);
-#else
-static inline int opp_init_cpufreq_table(struct device *dev,
- struct cpufreq_frequency_table **table)
-{
- return -EINVAL;
-}
-
-static inline
-void opp_free_cpufreq_table(struct device *dev,
- struct cpufreq_frequency_table **table)
-{
-}
-#endif /* CONFIG_CPU_FREQ */
-
-#endif /* __LINUX_OPP_H__ */
*/
struct perf_event {
#ifdef CONFIG_PERF_EVENTS
- struct list_head group_entry;
+ /*
+ * entry onto perf_event_context::event_list;
+ * modifications require ctx->lock
+ * RCU safe iterations.
+ */
struct list_head event_entry;
+
+ /*
+ * XXX: group_entry and sibling_list should be mutually exclusive;
+ * either you're a sibling on a group, or you're the group leader.
+ * Rework the code to always use the same list element.
+ *
+ * Locked for modification by both ctx->mutex and ctx->lock; holding
+ * either sufficies for read.
+ */
+ struct list_head group_entry;
struct list_head sibling_list;
+
+ /*
+ * We need storage to track the entries in perf_pmu_migrate_context; we
+ * cannot use the event_entry because of RCU and we want to keep the
+ * group in tact which avoids us using the other two entries.
+ */
+ struct list_head migrate_entry;
+
struct hlist_node hlist_entry;
int nr_siblings;
int group_flags;
--- /dev/null
+/*
+ * Generic OPP Interface
+ *
+ * Copyright (C) 2009-2010 Texas Instruments Incorporated.
+ * Nishanth Menon
+ * Romit Dasgupta
+ * Kevin Hilman
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __LINUX_OPP_H__
+#define __LINUX_OPP_H__
+
+#include <linux/err.h>
+#include <linux/cpufreq.h>
+#include <linux/notifier.h>
+
+struct dev_pm_opp;
+struct device;
+
+enum dev_pm_opp_event {
+ OPP_EVENT_ADD, OPP_EVENT_ENABLE, OPP_EVENT_DISABLE,
+};
+
+#if defined(CONFIG_PM_OPP)
+
+unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp);
+
+unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp);
+
+int dev_pm_opp_get_opp_count(struct device *dev);
+
+struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev,
+ unsigned long freq,
+ bool available);
+
+struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev,
+ unsigned long *freq);
+
+struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev,
+ unsigned long *freq);
+
+int dev_pm_opp_add(struct device *dev, unsigned long freq,
+ unsigned long u_volt);
+
+int dev_pm_opp_enable(struct device *dev, unsigned long freq);
+
+int dev_pm_opp_disable(struct device *dev, unsigned long freq);
+
+struct srcu_notifier_head *dev_pm_opp_get_notifier(struct device *dev);
+#else
+static inline unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp)
+{
+ return 0;
+}
+
+static inline unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp)
+{
+ return 0;
+}
+
+static inline int dev_pm_opp_get_opp_count(struct device *dev)
+{
+ return 0;
+}
+
+static inline struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev,
+ unsigned long freq, bool available)
+{
+ return ERR_PTR(-EINVAL);
+}
+
+static inline struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev,
+ unsigned long *freq)
+{
+ return ERR_PTR(-EINVAL);
+}
+
+static inline struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev,
+ unsigned long *freq)
+{
+ return ERR_PTR(-EINVAL);
+}
+
+static inline int dev_pm_opp_add(struct device *dev, unsigned long freq,
+ unsigned long u_volt)
+{
+ return -EINVAL;
+}
+
+static inline int dev_pm_opp_enable(struct device *dev, unsigned long freq)
+{
+ return 0;
+}
+
+static inline int dev_pm_opp_disable(struct device *dev, unsigned long freq)
+{
+ return 0;
+}
+
+static inline struct srcu_notifier_head *dev_pm_opp_get_notifier(
+ struct device *dev)
+{
+ return ERR_PTR(-EINVAL);
+}
+#endif /* CONFIG_PM_OPP */
+
+#if defined(CONFIG_PM_OPP) && defined(CONFIG_OF)
+int of_init_opp_table(struct device *dev);
+#else
+static inline int of_init_opp_table(struct device *dev)
+{
+ return -EINVAL;
+}
+#endif
+
+#if defined(CONFIG_CPU_FREQ) && defined(CONFIG_PM_OPP)
+int dev_pm_opp_init_cpufreq_table(struct device *dev,
+ struct cpufreq_frequency_table **table);
+void dev_pm_opp_free_cpufreq_table(struct device *dev,
+ struct cpufreq_frequency_table **table);
+#else
+static inline int dev_pm_opp_init_cpufreq_table(struct device *dev,
+ struct cpufreq_frequency_table **table)
+{
+ return -EINVAL;
+}
+
+static inline
+void dev_pm_opp_free_cpufreq_table(struct device *dev,
+ struct cpufreq_frequency_table **table)
+{
+}
+#endif /* CONFIG_CPU_FREQ */
+
+#endif /* __LINUX_OPP_H__ */
--- /dev/null
+/*
+ * powercap.h: Data types and headers for sysfs power capping interface
+ * Copyright (c) 2013, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.
+ *
+ */
+
+#ifndef __POWERCAP_H__
+#define __POWERCAP_H__
+
+#include <linux/device.h>
+#include <linux/idr.h>
+
+/*
+ * A power cap class device can contain multiple powercap control_types.
+ * Each control_type can have multiple power zones, which can be independently
+ * controlled. Each power zone can have one or more constraints.
+ */
+
+struct powercap_control_type;
+struct powercap_zone;
+struct powercap_zone_constraint;
+
+/**
+ * struct powercap_control_type_ops - Define control type callbacks
+ * @set_enable: Enable/Disable whole control type.
+ * Default is enabled. But this callback allows all zones
+ * to be in disable state and remove any applied power
+ * limits. If disabled power zone can only be monitored
+ * not controlled.
+ * @get_enable: get Enable/Disable status.
+ * @release: Callback to inform that last reference to this
+ * control type is closed. So it is safe to free data
+ * structure associated with this control type.
+ * This callback is mandatory if the client own memory
+ * for the control type.
+ *
+ * This structure defines control type callbacks to be implemented by client
+ * drivers
+ */
+struct powercap_control_type_ops {
+ int (*set_enable) (struct powercap_control_type *, bool mode);
+ int (*get_enable) (struct powercap_control_type *, bool *mode);
+ int (*release) (struct powercap_control_type *);
+};
+
+/**
+ * struct powercap_control_type- Defines a powercap control_type
+ * @name: name of control_type
+ * @dev: device for this control_type
+ * @idr: idr to have unique id for its child
+ * @root_node: Root holding power zones for this control_type
+ * @ops: Pointer to callback struct
+ * @node_lock: mutex for control type
+ * @allocated: This is possible that client owns the memory
+ * used by this structure. In this case
+ * this flag is set to false by framework to
+ * prevent deallocation during release process.
+ * Otherwise this flag is set to true.
+ * @ctrl_inst: link to the control_type list
+ *
+ * Defines powercap control_type. This acts as a container for power
+ * zones, which use same method to control power. E.g. RAPL, RAPL-PCI etc.
+ * All fields are private and should not be used by client drivers.
+ */
+struct powercap_control_type {
+ struct device dev;
+ struct idr idr;
+ int nr_zones;
+ const struct powercap_control_type_ops *ops;
+ struct mutex lock;
+ bool allocated;
+ struct list_head node;
+};
+
+/**
+ * struct powercap_zone_ops - Define power zone callbacks
+ * @get_max_energy_range_uj: Get maximum range of energy counter in
+ * micro-joules.
+ * @get_energy_uj: Get current energy counter in micro-joules.
+ * @reset_energy_uj: Reset micro-joules energy counter.
+ * @get_max_power_range_uw: Get maximum range of power counter in
+ * micro-watts.
+ * @get_power_uw: Get current power counter in micro-watts.
+ * @set_enable: Enable/Disable power zone controls.
+ * Default is enabled.
+ * @get_enable: get Enable/Disable status.
+ * @release: Callback to inform that last reference to this
+ * control type is closed. So it is safe to free
+ * data structure associated with this
+ * control type. Mandatory, if client driver owns
+ * the power_zone memory.
+ *
+ * This structure defines zone callbacks to be implemented by client drivers.
+ * Client drives can define both energy and power related callbacks. But at
+ * the least one type (either power or energy) is mandatory. Client drivers
+ * should handle mutual exclusion, if required in callbacks.
+ */
+struct powercap_zone_ops {
+ int (*get_max_energy_range_uj) (struct powercap_zone *, u64 *);
+ int (*get_energy_uj) (struct powercap_zone *, u64 *);
+ int (*reset_energy_uj) (struct powercap_zone *);
+ int (*get_max_power_range_uw) (struct powercap_zone *, u64 *);
+ int (*get_power_uw) (struct powercap_zone *, u64 *);
+ int (*set_enable) (struct powercap_zone *, bool mode);
+ int (*get_enable) (struct powercap_zone *, bool *mode);
+ int (*release) (struct powercap_zone *);
+};
+
+#define POWERCAP_ZONE_MAX_ATTRS 6
+#define POWERCAP_CONSTRAINTS_ATTRS 8
+#define MAX_CONSTRAINTS_PER_ZONE 10
+/**
+ * struct powercap_zone- Defines instance of a power cap zone
+ * @id: Unique id
+ * @name: Power zone name.
+ * @control_type_inst: Control type instance for this zone.
+ * @ops: Pointer to the zone operation structure.
+ * @dev: Instance of a device.
+ * @const_id_cnt: Number of constraint defined.
+ * @idr: Instance to an idr entry for children zones.
+ * @parent_idr: To remove reference from the parent idr.
+ * @private_data: Private data pointer if any for this zone.
+ * @zone_dev_attrs: Attributes associated with this device.
+ * @zone_attr_count: Attribute count.
+ * @dev_zone_attr_group: Attribute group for attributes.
+ * @dev_attr_groups: Attribute group store to register with device.
+ * @allocated: This is possible that client owns the memory
+ * used by this structure. In this case
+ * this flag is set to false by framework to
+ * prevent deallocation during release process.
+ * Otherwise this flag is set to true.
+ * @constraint_ptr: List of constraints for this zone.
+ *
+ * This defines a power zone instance. The fields of this structure are
+ * private, and should not be used by client drivers.
+ */
+struct powercap_zone {
+ int id;
+ char *name;
+ void *control_type_inst;
+ const struct powercap_zone_ops *ops;
+ struct device dev;
+ int const_id_cnt;
+ struct idr idr;
+ struct idr *parent_idr;
+ void *private_data;
+ struct attribute **zone_dev_attrs;
+ int zone_attr_count;
+ struct attribute_group dev_zone_attr_group;
+ const struct attribute_group *dev_attr_groups[2]; /* 1 group + NULL */
+ bool allocated;
+ struct powercap_zone_constraint *constraints;
+};
+
+/**
+ * struct powercap_zone_constraint_ops - Define constraint callbacks
+ * @set_power_limit_uw: Set power limit in micro-watts.
+ * @get_power_limit_uw: Get power limit in micro-watts.
+ * @set_time_window_us: Set time window in micro-seconds.
+ * @get_time_window_us: Get time window in micro-seconds.
+ * @get_max_power_uw: Get max power allowed in micro-watts.
+ * @get_min_power_uw: Get min power allowed in micro-watts.
+ * @get_max_time_window_us: Get max time window allowed in micro-seconds.
+ * @get_min_time_window_us: Get min time window allowed in micro-seconds.
+ * @get_name: Get the name of constraint
+ *
+ * This structure is used to define the constraint callbacks for the client
+ * drivers. The following callbacks are mandatory and can't be NULL:
+ * set_power_limit_uw
+ * get_power_limit_uw
+ * set_time_window_us
+ * get_time_window_us
+ * get_name
+ * Client drivers should handle mutual exclusion, if required in callbacks.
+ */
+struct powercap_zone_constraint_ops {
+ int (*set_power_limit_uw) (struct powercap_zone *, int, u64);
+ int (*get_power_limit_uw) (struct powercap_zone *, int, u64 *);
+ int (*set_time_window_us) (struct powercap_zone *, int, u64);
+ int (*get_time_window_us) (struct powercap_zone *, int, u64 *);
+ int (*get_max_power_uw) (struct powercap_zone *, int, u64 *);
+ int (*get_min_power_uw) (struct powercap_zone *, int, u64 *);
+ int (*get_max_time_window_us) (struct powercap_zone *, int, u64 *);
+ int (*get_min_time_window_us) (struct powercap_zone *, int, u64 *);
+ const char *(*get_name) (struct powercap_zone *, int);
+};
+
+/**
+ * struct powercap_zone_constraint- Defines instance of a constraint
+ * @id: Instance Id of this constraint.
+ * @power_zone: Pointer to the power zone for this constraint.
+ * @ops: Pointer to the constraint callbacks.
+ *
+ * This defines a constraint instance.
+ */
+struct powercap_zone_constraint {
+ int id;
+ struct powercap_zone *power_zone;
+ struct powercap_zone_constraint_ops *ops;
+};
+
+
+/* For clients to get their device pointer, may be used for dev_dbgs */
+#define POWERCAP_GET_DEV(power_zone) (&power_zone->dev)
+
+/**
+* powercap_set_zone_data() - Set private data for a zone
+* @power_zone: A pointer to the valid zone instance.
+* @pdata: A pointer to the user private data.
+*
+* Allows client drivers to associate some private data to zone instance.
+*/
+static inline void powercap_set_zone_data(struct powercap_zone *power_zone,
+ void *pdata)
+{
+ if (power_zone)
+ power_zone->private_data = pdata;
+}
+
+/**
+* powercap_get_zone_data() - Get private data for a zone
+* @power_zone: A pointer to the valid zone instance.
+*
+* Allows client drivers to get private data associate with a zone,
+* using call to powercap_set_zone_data.
+*/
+static inline void *powercap_get_zone_data(struct powercap_zone *power_zone)
+{
+ if (power_zone)
+ return power_zone->private_data;
+ return NULL;
+}
+
+/**
+* powercap_register_control_type() - Register a control_type with framework
+* @control_type: Pointer to client allocated memory for the control type
+* structure storage. If this is NULL, powercap framework
+* will allocate memory and own it.
+* Advantage of this parameter is that client can embed
+* this data in its data structures and allocate in a
+* single call, preventing multiple allocations.
+* @control_type_name: The Name of this control_type, which will be shown
+* in the sysfs Interface.
+* @ops: Callbacks for control type. This parameter is optional.
+*
+* Used to create a control_type with the power capping class. Here control_type
+* can represent a type of technology, which can control a range of power zones.
+* For example a control_type can be RAPL (Running Average Power Limit)
+* Intel® 64 and IA-32 Processor Architectures. The name can be any string
+* which must be unique, otherwise this function returns NULL.
+* A pointer to the control_type instance is returned on success.
+*/
+struct powercap_control_type *powercap_register_control_type(
+ struct powercap_control_type *control_type,
+ const char *name,
+ const struct powercap_control_type_ops *ops);
+
+/**
+* powercap_unregister_control_type() - Unregister a control_type from framework
+* @instance: A pointer to the valid control_type instance.
+*
+* Used to unregister a control_type with the power capping class.
+* All power zones registered under this control type have to be unregistered
+* before calling this function, or it will fail with an error code.
+*/
+int powercap_unregister_control_type(struct powercap_control_type *instance);
+
+/* Zone register/unregister API */
+
+/**
+* powercap_register_zone() - Register a power zone
+* @power_zone: Pointer to client allocated memory for the power zone structure
+* storage. If this is NULL, powercap framework will allocate
+* memory and own it. Advantage of this parameter is that client
+* can embed this data in its data structures and allocate in a
+* single call, preventing multiple allocations.
+* @control_type: A control_type instance under which this zone operates.
+* @name: A name for this zone.
+* @parent: A pointer to the parent power zone instance if any or NULL
+* @ops: Pointer to zone operation callback structure.
+* @no_constraints: Number of constraints for this zone
+* @const_ops: Pointer to constraint callback structure
+*
+* Register a power zone under a given control type. A power zone must register
+* a pointer to a structure representing zone callbacks.
+* A power zone can be located under a parent power zone, in which case @parent
+* should point to it. Otherwise, if @parent is NULL, the new power zone will
+* be located directly under the given control type
+* For each power zone there may be a number of constraints that appear in the
+* sysfs under that zone as attributes with unique numeric IDs.
+* Returns pointer to the power_zone on success.
+*/
+struct powercap_zone *powercap_register_zone(
+ struct powercap_zone *power_zone,
+ struct powercap_control_type *control_type,
+ const char *name,
+ struct powercap_zone *parent,
+ const struct powercap_zone_ops *ops,
+ int nr_constraints,
+ struct powercap_zone_constraint_ops *const_ops);
+
+/**
+* powercap_unregister_zone() - Unregister a zone device
+* @control_type: A pointer to the valid instance of a control_type.
+* @power_zone: A pointer to the valid zone instance for a control_type
+*
+* Used to unregister a zone device for a control_type. Caller should
+* make sure that children for this zone are unregistered first.
+*/
+int powercap_unregister_zone(struct powercap_control_type *control_type,
+ struct powercap_zone *power_zone);
+
+#endif
extern void get_random_bytes(void *buf, int nbytes);
extern void get_random_bytes_arch(void *buf, int nbytes);
void generate_random_uuid(unsigned char uuid_out[16]);
+extern int random_int_secret_init(void);
#ifndef MODULE
extern const struct file_operations random_fops, urandom_fops;
};
/**
+ * struct regulator_linear_range - specify linear voltage ranges
+ *
* Specify a range of voltages for regulator_map_linar_range() and
* regulator_list_linear_range().
*
} memcg_batch;
unsigned int memcg_kmem_skip_account;
struct memcg_oom_info {
+ struct mem_cgroup *memcg;
+ gfp_t gfp_mask;
+ int order;
unsigned int may_oom:1;
- unsigned int in_memcg_oom:1;
- unsigned int oom_locked:1;
- int wakeups;
- struct mem_cgroup *wait_on_memcg;
} memcg_oom;
#endif
#ifdef CONFIG_UPROBES
* headers if needed
*/
__u8 encapsulation:1;
- /* 7/9 bit hole (depending on ndisc_nodetype presence) */
+ /* 6/8 bit hole (depending on ndisc_nodetype presence) */
kmemcheck_bitfield_end(flags2);
#if defined CONFIG_NET_DMA || defined CONFIG_NET_RX_BUSY_POLL
static inline void kick_all_cpus_sync(void) { }
+static inline void __smp_call_function_single(int cpuid,
+ struct call_single_data *data, int wait)
+{
+ on_each_cpu(data->func, data->info, wait);
+}
+
#endif /* !SMP */
/*
+++ /dev/null
-#ifndef __LINUX_TC_DEF_H
-#define __LINUX_TC_DEF_H
-
-#include <linux/pkt_cls.h>
-
-struct tc_defact {
- tc_gen;
-};
-
-enum {
- TCA_DEF_UNSPEC,
- TCA_DEF_TM,
- TCA_DEF_PARMS,
- TCA_DEF_DATA,
- __TCA_DEF_MAX
-};
-#define TCA_DEF_MAX (__TCA_DEF_MAX - 1)
-
-#endif
#include <asm/timex.h>
+#ifndef random_get_entropy
+/*
+ * The random_get_entropy() function is used by the /dev/random driver
+ * in order to extract entropy via the relative unpredictability of
+ * when an interrupt takes places versus a high speed, fine-grained
+ * timing source or cycle counter. Since it will be occurred on every
+ * single interrupt, it must have a very low cost/overhead.
+ *
+ * By default we use get_cycles() for this purpose, but individual
+ * architectures may override this in their asm/timex.h header file.
+ */
+#define random_get_entropy() get_cycles()
+#endif
+
/*
* SHIFT_PLL is used as a dampening factor to define how much we
* adjust the frequency correction for a given offset in PLL mode.
unsigned int needs_reset:1;
};
-#if IS_ENABLED(CONFIG_NOP_USB_XCEIV)
+#if defined(CONFIG_NOP_USB_XCEIV) || (defined(CONFIG_NOP_USB_XCEIV_MODULE) && defined(MODULE))
/* sometimes transceivers are accessed only through e.g. ULPI */
extern void usb_nop_xceiv_register(void);
extern void usb_nop_xceiv_unregister(void);
struct usb_host_endpoint *status;
unsigned maxpacket;
struct timer_list delay;
+ const char *padding_pkt;
/* protocol/interface state */
struct net_device *net;
US_FLAG(INITIAL_READ10, 0x00100000) \
/* Initial READ(10) (and others) must be retried */ \
US_FLAG(WRITE_CACHE, 0x00200000) \
- /* Write Cache status is not available */
+ /* Write Cache status is not available */ \
+ US_FLAG(NEEDS_CAP16, 0x00400000)
+ /* cannot handle READ_CAPACITY_10 */
#define US_FLAG(name, value) US_FL_##name = value ,
enum { US_DO_ALL_FLAGS };
* out of the arbitration process (and can be safe to take
* interrupts at any time.
*/
-#if defined(CONFIG_VGA_ARB)
extern void vga_set_legacy_decoding(struct pci_dev *pdev,
unsigned int decodes);
-#else
-static inline void vga_set_legacy_decoding(struct pci_dev *pdev,
- unsigned int decodes)
-{
-}
-#endif
/**
* vga_get - acquire & locks VGA resources
struct yamdrv_ioctl_mcs {
int cmd;
- int bitrate;
+ unsigned int bitrate;
unsigned char bits[YAM_FPGA_SIZE];
};
int ipv6_chk_home_addr(struct net *net, const struct in6_addr *addr);
#endif
+bool ipv6_chk_custom_prefix(const struct in6_addr *addr,
+ const unsigned int prefix_len,
+ struct net_device *dev);
+
int ipv6_chk_prefix(const struct in6_addr *addr, struct net_device *dev);
struct inet6_ifaddr *ipv6_get_ifaddr(struct net *net,
enum {
HCI_SETUP,
HCI_AUTO_OFF,
+ HCI_RFKILLED,
HCI_MGMT,
HCI_PAIRABLE,
HCI_SERVICE_CACHE,
unsigned char err_offset = 0;
u8 opt_len = opt[1];
u8 opt_iter;
+ u8 tag_len;
if (opt_len < 8) {
err_offset = 1;
}
for (opt_iter = 6; opt_iter < opt_len;) {
- if (opt[opt_iter + 1] > (opt_len - opt_iter)) {
+ tag_len = opt[opt_iter + 1];
+ if ((tag_len == 0) || (opt[opt_iter + 1] > (opt_len - opt_iter))) {
err_offset = opt_iter + 1;
goto out;
}
- opt_iter += opt[opt_iter + 1];
+ opt_iter += tag_len;
}
out:
{
return dst_orig;
}
+
+static inline struct xfrm_state *dst_xfrm(const struct dst_entry *dst)
+{
+ return NULL;
+}
+
#else
extern struct dst_entry *xfrm_lookup(struct net *net, struct dst_entry *dst_orig,
const struct flowi *fl, struct sock *sk,
int flags);
+
+/* skb attached with this dst needs transformation if dst->xfrm is valid */
+static inline struct xfrm_state *dst_xfrm(const struct dst_entry *dst)
+{
+ return dst->xfrm;
+}
#endif
#endif /* _NET_DST_H */
skb_dst(skb)->dev->mtu : dst_mtu(skb_dst(skb));
}
-static inline struct in6_addr *rt6_nexthop(struct rt6_info *rt, struct in6_addr *dest)
+static inline struct in6_addr *rt6_nexthop(struct rt6_info *rt)
{
- if (rt->rt6i_flags & RTF_GATEWAY)
- return &rt->rt6i_gateway;
- return dest;
+ return &rt->rt6i_gateway;
}
#endif
struct rcu_head rcu_head;
};
-/* In grace period after removing */
-#define IP_VS_DEST_STATE_REMOVING 0x01
/*
* The real server destination forwarding entry
* with ip address, port number, and so on.
atomic_t refcnt; /* reference counter */
struct ip_vs_stats stats; /* statistics */
- unsigned long state; /* state flags */
+ unsigned long idle_start; /* start time, jiffies */
/* connection counters and thresholds */
atomic_t activeconns; /* active connections */
struct ip_vs_dest_dst __rcu *dest_dst; /* cached dst info */
/* for virtual service */
- struct ip_vs_service *svc; /* service it belongs to */
+ struct ip_vs_service __rcu *svc; /* service it belongs to */
__u16 protocol; /* which protocol (TCP/UDP) */
__be16 vport; /* virtual port number */
union nf_inet_addr vaddr; /* virtual IP address */
__u32 vfwmark; /* firewall mark of service */
struct list_head t_list; /* in dest_trash */
- struct rcu_head rcu_head;
unsigned int in_rs_table:1; /* we are in rs_table */
};
/* CONFIG_IP_VS_NFCT */
#endif
-static inline unsigned int
+static inline int
ip_vs_dest_conn_overhead(struct ip_vs_dest *dest)
{
/*
/* Basic interface to register ieee802154 device */
struct ieee802154_dev *
-ieee802154_alloc_device(size_t priv_data_lex, struct ieee802154_ops *ops);
+ieee802154_alloc_device(size_t priv_data_len, struct ieee802154_ops *ops);
void ieee802154_free_device(struct ieee802154_dev *dev);
int ieee802154_register_device(struct ieee802154_dev *dev);
void ieee802154_unregister_device(struct ieee802154_dev *dev);
struct mrp_application *app;
struct net_device *dev;
struct timer_list join_timer;
+ struct timer_list periodic_timer;
spinlock_t lock;
struct sk_buff_head queue;
struct hlist_head *dev_index_head;
unsigned int dev_base_seq; /* protected by rtnl_mutex */
int ifindex;
+ unsigned int dev_unreg_count;
/* core fib_rules */
struct list_head rules_ops;
struct tcphdr;
struct xt_synproxy_info;
-extern void synproxy_parse_options(const struct sk_buff *skb, unsigned int doff,
+extern bool synproxy_parse_options(const struct sk_buff *skb, unsigned int doff,
const struct tcphdr *th,
struct synproxy_options *opts);
extern unsigned int synproxy_options_size(const struct synproxy_options *opts);
#include <linux/types.h>
-extern void net_secret_init(void);
extern __u32 secure_ip_id(__be32 daddr);
extern __u32 secure_ipv6_id(const __be32 daddr[4]);
extern u32 secure_ipv4_port_ephemeral(__be32 saddr, __be32 daddr, __be16 dport);
void (*sk_destruct)(struct sock *sk);
};
+#define __sk_user_data(sk) ((*((void __rcu **)&(sk)->sk_user_data)))
+
+#define rcu_dereference_sk_user_data(sk) rcu_dereference(__sk_user_data((sk)))
+#define rcu_assign_sk_user_data(sk, ptr) rcu_assign_pointer(__sk_user_data((sk)), ptr)
+
/*
* SK_CAN_REUSE and SK_NO_REUSE on a socket mean that the socket is OK
* or not whether his port will be reused by someone else. SK_FORCE_REUSE
static inline void sk_filter_uncharge(struct sock *sk, struct sk_filter *fp)
{
- unsigned int size = sk_filter_len(fp);
-
- atomic_sub(size, &sk->sk_omem_alloc);
+ atomic_sub(sk_filter_size(fp->len), &sk->sk_omem_alloc);
sk_filter_release(fp);
}
static inline void sk_filter_charge(struct sock *sk, struct sk_filter *fp)
{
atomic_inc(&fp->refcnt);
- atomic_add(sk_filter_len(fp), &sk->sk_omem_alloc);
+ atomic_add(sk_filter_size(fp->len), &sk->sk_omem_alloc);
}
/*
*
* A : generation
*/
+#define RSND_GEN_MASK (0xF << 0)
#define RSND_GEN1 (1 << 0) /* fixme */
#define RSND_GEN2 (2 << 0) /* fixme */
),
TP_fast_assign(
- __entry->unpacked_lun = cmd->se_lun->unpacked_lun;
+ __entry->unpacked_lun = cmd->orig_fe_lun;
__entry->opcode = cmd->t_task_cdb[0];
__entry->data_length = cmd->data_length;
__entry->task_attribute = cmd->sam_task_attr;
),
TP_fast_assign(
- __entry->unpacked_lun = cmd->se_lun->unpacked_lun;
+ __entry->unpacked_lun = cmd->orig_fe_lun;
__entry->opcode = cmd->t_task_cdb[0];
__entry->data_length = cmd->data_length;
__entry->task_attribute = cmd->sam_task_attr;
__u32 connection;
__u32 mm_width, mm_height; /**< HxW in millimeters */
__u32 subpixel;
+
+ __u32 pad;
};
#define DRM_MODE_PROP_PENDING (1<<0)
#define SI_TILE_MODE_DEPTH_STENCIL_2D_4AA 3
#define SI_TILE_MODE_DEPTH_STENCIL_2D_8AA 2
+#define CIK_TILE_MODE_DEPTH_STENCIL_1D 5
+
#endif
union {
__u64 capabilities;
struct {
- __u64 cap_usr_time : 1,
- cap_usr_rdpmc : 1,
- cap_usr_time_zero : 1,
- cap_____res : 61;
+ __u64 cap_bit0 : 1, /* Always 0, deprecated, see commit 860f085b74e9 */
+ cap_bit0_is_deprecated : 1, /* Always 1, signals that bit 0 is zero */
+
+ cap_user_rdpmc : 1, /* The RDPMC instruction can be used to read counts */
+ cap_user_time : 1, /* The time_* fields are used */
+ cap_user_time_zero : 1, /* The time_zero field is used */
+ cap_____res : 59;
};
};
* ((rem * time_mult) >> time_shift);
*/
__u64 time_zero;
+ __u32 size; /* Header size up to __reserved[] fields. */
/*
* Hole for extension of the self monitor capabilities
*/
- __u64 __reserved[119]; /* align to 1k */
+ __u8 __reserved[118*8+4]; /* align to 1k. */
/*
* Control data for the mmap() data buffer.
* u64 len;
* u64 pgoff;
* char filename[];
+ * struct sample_id sample_id;
* };
*/
PERF_RECORD_MMAP = 1,
# UAPI Header export list
header-y += tc_csum.h
+header-y += tc_defact.h
header-y += tc_gact.h
header-y += tc_ipt.h
header-y += tc_mirred.h
--- /dev/null
+#ifndef __LINUX_TC_DEF_H
+#define __LINUX_TC_DEF_H
+
+#include <linux/pkt_cls.h>
+
+struct tc_defact {
+ tc_gen;
+};
+
+enum {
+ TCA_DEF_UNSPEC,
+ TCA_DEF_TM,
+ TCA_DEF_PARMS,
+ TCA_DEF_DATA,
+ __TCA_DEF_MAX
+};
+#define TCA_DEF_MAX (__TCA_DEF_MAX - 1)
+
+#endif
IB_USER_VERBS_CMD_CLOSE_XRCD,
IB_USER_VERBS_CMD_CREATE_XSRQ,
IB_USER_VERBS_CMD_OPEN_QP,
+#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
IB_USER_VERBS_CMD_CREATE_FLOW = IB_USER_VERBS_CMD_THRESHOLD,
IB_USER_VERBS_CMD_DESTROY_FLOW
+#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
};
/*
__u16 out_words;
};
+#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
struct ib_uverbs_cmd_hdr_ex {
__u32 command;
__u16 in_words;
__u16 provider_out_words;
__u32 cmd_hdr_reserved;
};
+#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
struct ib_uverbs_get_context {
__u64 response;
__u64 driver_data[0];
};
+#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
struct ib_kern_eth_filter {
__u8 dst_mac[6];
__u8 src_mac[6];
__u32 comp_mask;
__u32 flow_handle;
};
+#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
struct ib_uverbs_create_srq {
__u64 response;
#include <linux/elevator.h>
#include <linux/sched_clock.h>
#include <linux/context_tracking.h>
+#include <linux/random.h>
#include <asm/io.h>
#include <asm/bugs.h>
do_ctors();
usermodehelper_enable();
do_initcalls();
+ random_int_secret_init();
}
static void __init do_pre_smp_initcalls(void)
ipc_rmid(&msg_ids(ns), &s->q_perm);
}
+static void msg_rcu_free(struct rcu_head *head)
+{
+ struct ipc_rcu *p = container_of(head, struct ipc_rcu, rcu);
+ struct msg_queue *msq = ipc_rcu_to_struct(p);
+
+ security_msg_queue_free(msq);
+ ipc_rcu_free(head);
+}
+
/**
* newque - Create a new msg queue
* @ns: namespace
msq->q_perm.security = NULL;
retval = security_msg_queue_alloc(msq);
if (retval) {
- ipc_rcu_putref(msq);
+ ipc_rcu_putref(msq, ipc_rcu_free);
return retval;
}
/* ipc_addid() locks msq upon success. */
id = ipc_addid(&msg_ids(ns), &msq->q_perm, ns->msg_ctlmni);
if (id < 0) {
- security_msg_queue_free(msq);
- ipc_rcu_putref(msq);
+ ipc_rcu_putref(msq, msg_rcu_free);
return id;
}
free_msg(msg);
}
atomic_sub(msq->q_cbytes, &ns->msg_bytes);
- security_msg_queue_free(msq);
- ipc_rcu_putref(msq);
+ ipc_rcu_putref(msq, msg_rcu_free);
}
/*
if (ipcperms(ns, &msq->q_perm, S_IWUGO))
goto out_unlock0;
+ /* raced with RMID? */
+ if (msq->q_perm.deleted) {
+ err = -EIDRM;
+ goto out_unlock0;
+ }
+
err = security_msg_queue_msgsnd(msq, msg, msgflg);
if (err)
goto out_unlock0;
rcu_read_lock();
ipc_lock_object(&msq->q_perm);
- ipc_rcu_putref(msq);
+ ipc_rcu_putref(msq, ipc_rcu_free);
if (msq->q_perm.deleted) {
err = -EIDRM;
goto out_unlock0;
goto out_unlock1;
ipc_lock_object(&msq->q_perm);
+
+ /* raced with RMID? */
+ if (msq->q_perm.deleted) {
+ msg = ERR_PTR(-EIDRM);
+ goto out_unlock0;
+ }
+
msg = find_msg(msq, &msgtyp, mode);
if (!IS_ERR(msg)) {
/*
}
}
+static void sem_rcu_free(struct rcu_head *head)
+{
+ struct ipc_rcu *p = container_of(head, struct ipc_rcu, rcu);
+ struct sem_array *sma = ipc_rcu_to_struct(p);
+
+ security_sem_free(sma);
+ ipc_rcu_free(head);
+}
+
+/*
+ * Wait until all currently ongoing simple ops have completed.
+ * Caller must own sem_perm.lock.
+ * New simple ops cannot start, because simple ops first check
+ * that sem_perm.lock is free.
+ * that a) sem_perm.lock is free and b) complex_count is 0.
+ */
+static void sem_wait_array(struct sem_array *sma)
+{
+ int i;
+ struct sem *sem;
+
+ if (sma->complex_count) {
+ /* The thread that increased sma->complex_count waited on
+ * all sem->lock locks. Thus we don't need to wait again.
+ */
+ return;
+ }
+
+ for (i = 0; i < sma->sem_nsems; i++) {
+ sem = sma->sem_base + i;
+ spin_unlock_wait(&sem->lock);
+ }
+}
+
/*
* If the request contains only one semaphore operation, and there are
* no complex transactions pending, lock only the semaphore involved.
* Otherwise, lock the entire semaphore array, since we either have
* multiple semaphores in our own semops, or we need to look at
* semaphores from other pending complex operations.
- *
- * Carefully guard against sma->complex_count changing between zero
- * and non-zero while we are spinning for the lock. The value of
- * sma->complex_count cannot change while we are holding the lock,
- * so sem_unlock should be fine.
- *
- * The global lock path checks that all the local locks have been released,
- * checking each local lock once. This means that the local lock paths
- * cannot start their critical sections while the global lock is held.
*/
static inline int sem_lock(struct sem_array *sma, struct sembuf *sops,
int nsops)
{
- int locknum;
- again:
- if (nsops == 1 && !sma->complex_count) {
- struct sem *sem = sma->sem_base + sops->sem_num;
+ struct sem *sem;
- /* Lock just the semaphore we are interested in. */
- spin_lock(&sem->lock);
+ if (nsops != 1) {
+ /* Complex operation - acquire a full lock */
+ ipc_lock_object(&sma->sem_perm);
- /*
- * If sma->complex_count was set while we were spinning,
- * we may need to look at things we did not lock here.
+ /* And wait until all simple ops that are processed
+ * right now have dropped their locks.
*/
- if (unlikely(sma->complex_count)) {
- spin_unlock(&sem->lock);
- goto lock_array;
- }
+ sem_wait_array(sma);
+ return -1;
+ }
+
+ /*
+ * Only one semaphore affected - try to optimize locking.
+ * The rules are:
+ * - optimized locking is possible if no complex operation
+ * is either enqueued or processed right now.
+ * - The test for enqueued complex ops is simple:
+ * sma->complex_count != 0
+ * - Testing for complex ops that are processed right now is
+ * a bit more difficult. Complex ops acquire the full lock
+ * and first wait that the running simple ops have completed.
+ * (see above)
+ * Thus: If we own a simple lock and the global lock is free
+ * and complex_count is now 0, then it will stay 0 and
+ * thus just locking sem->lock is sufficient.
+ */
+ sem = sma->sem_base + sops->sem_num;
+ if (sma->complex_count == 0) {
/*
- * Another process is holding the global lock on the
- * sem_array; we cannot enter our critical section,
- * but have to wait for the global lock to be released.
+ * It appears that no complex operation is around.
+ * Acquire the per-semaphore lock.
*/
- if (unlikely(spin_is_locked(&sma->sem_perm.lock))) {
- spin_unlock(&sem->lock);
- spin_unlock_wait(&sma->sem_perm.lock);
- goto again;
+ spin_lock(&sem->lock);
+
+ /* Then check that the global lock is free */
+ if (!spin_is_locked(&sma->sem_perm.lock)) {
+ /* spin_is_locked() is not a memory barrier */
+ smp_mb();
+
+ /* Now repeat the test of complex_count:
+ * It can't change anymore until we drop sem->lock.
+ * Thus: if is now 0, then it will stay 0.
+ */
+ if (sma->complex_count == 0) {
+ /* fast path successful! */
+ return sops->sem_num;
+ }
}
+ spin_unlock(&sem->lock);
+ }
- locknum = sops->sem_num;
+ /* slow path: acquire the full lock */
+ ipc_lock_object(&sma->sem_perm);
+
+ if (sma->complex_count == 0) {
+ /* False alarm:
+ * There is no complex operation, thus we can switch
+ * back to the fast path.
+ */
+ spin_lock(&sem->lock);
+ ipc_unlock_object(&sma->sem_perm);
+ return sops->sem_num;
} else {
- int i;
- /*
- * Lock the semaphore array, and wait for all of the
- * individual semaphore locks to go away. The code
- * above ensures no new single-lock holders will enter
- * their critical section while the array lock is held.
+ /* Not a false alarm, thus complete the sequence for a
+ * full lock.
*/
- lock_array:
- ipc_lock_object(&sma->sem_perm);
- for (i = 0; i < sma->sem_nsems; i++) {
- struct sem *sem = sma->sem_base + i;
- spin_unlock_wait(&sem->lock);
- }
- locknum = -1;
+ sem_wait_array(sma);
+ return -1;
}
- return locknum;
}
static inline void sem_unlock(struct sem_array *sma, int locknum)
static inline void sem_lock_and_putref(struct sem_array *sma)
{
sem_lock(sma, NULL, -1);
- ipc_rcu_putref(sma);
-}
-
-static inline void sem_putref(struct sem_array *sma)
-{
- ipc_rcu_putref(sma);
+ ipc_rcu_putref(sma, ipc_rcu_free);
}
static inline void sem_rmid(struct ipc_namespace *ns, struct sem_array *s)
sma->sem_perm.security = NULL;
retval = security_sem_alloc(sma);
if (retval) {
- ipc_rcu_putref(sma);
+ ipc_rcu_putref(sma, ipc_rcu_free);
return retval;
}
id = ipc_addid(&sem_ids(ns), &sma->sem_perm, ns->sc_semmni);
if (id < 0) {
- security_sem_free(sma);
- ipc_rcu_putref(sma);
+ ipc_rcu_putref(sma, sem_rcu_free);
return id;
}
ns->used_sems += nsems;
return semop_completed;
}
+/**
+ * set_semotime(sma, sops) - set sem_otime
+ * @sma: semaphore array
+ * @sops: operations that modified the array, may be NULL
+ *
+ * sem_otime is replicated to avoid cache line trashing.
+ * This function sets one instance to the current time.
+ */
+static void set_semotime(struct sem_array *sma, struct sembuf *sops)
+{
+ if (sops == NULL) {
+ sma->sem_base[0].sem_otime = get_seconds();
+ } else {
+ sma->sem_base[sops[0].sem_num].sem_otime =
+ get_seconds();
+ }
+}
+
/**
* do_smart_update(sma, sops, nsops, otime, pt) - optimized update_queue
* @sma: semaphore array
}
}
}
- if (otime) {
- if (sops == NULL) {
- sma->sem_base[0].sem_otime = get_seconds();
- } else {
- sma->sem_base[sops[0].sem_num].sem_otime =
- get_seconds();
- }
- }
+ if (otime)
+ set_semotime(sma, sops);
}
-
/* The following counts are associated to each semaphore:
* semncnt number of tasks waiting on semval being nonzero
* semzcnt number of tasks waiting on semval being zero
wake_up_sem_queue_do(&tasks);
ns->used_sems -= sma->sem_nsems;
- security_sem_free(sma);
- ipc_rcu_putref(sma);
+ ipc_rcu_putref(sma, sem_rcu_free);
}
static unsigned long copy_semid_to_user(void __user *buf, struct semid64_ds *in, int version)
sem_lock(sma, NULL, -1);
+ if (sma->sem_perm.deleted) {
+ sem_unlock(sma, -1);
+ rcu_read_unlock();
+ return -EIDRM;
+ }
+
curr = &sma->sem_base[semnum];
ipc_assert_locked_object(&sma->sem_perm);
int i;
sem_lock(sma, NULL, -1);
+ if (sma->sem_perm.deleted) {
+ err = -EIDRM;
+ goto out_unlock;
+ }
if(nsems > SEMMSL_FAST) {
if (!ipc_rcu_getref(sma)) {
- sem_unlock(sma, -1);
- rcu_read_unlock();
err = -EIDRM;
- goto out_free;
+ goto out_unlock;
}
sem_unlock(sma, -1);
rcu_read_unlock();
sem_io = ipc_alloc(sizeof(ushort)*nsems);
if(sem_io == NULL) {
- sem_putref(sma);
+ ipc_rcu_putref(sma, ipc_rcu_free);
return -ENOMEM;
}
rcu_read_lock();
sem_lock_and_putref(sma);
if (sma->sem_perm.deleted) {
- sem_unlock(sma, -1);
- rcu_read_unlock();
err = -EIDRM;
- goto out_free;
+ goto out_unlock;
}
}
for (i = 0; i < sma->sem_nsems; i++)
struct sem_undo *un;
if (!ipc_rcu_getref(sma)) {
- rcu_read_unlock();
- return -EIDRM;
+ err = -EIDRM;
+ goto out_rcu_wakeup;
}
rcu_read_unlock();
if(nsems > SEMMSL_FAST) {
sem_io = ipc_alloc(sizeof(ushort)*nsems);
if(sem_io == NULL) {
- sem_putref(sma);
+ ipc_rcu_putref(sma, ipc_rcu_free);
return -ENOMEM;
}
}
if (copy_from_user (sem_io, p, nsems*sizeof(ushort))) {
- sem_putref(sma);
+ ipc_rcu_putref(sma, ipc_rcu_free);
err = -EFAULT;
goto out_free;
}
for (i = 0; i < nsems; i++) {
if (sem_io[i] > SEMVMX) {
- sem_putref(sma);
+ ipc_rcu_putref(sma, ipc_rcu_free);
err = -ERANGE;
goto out_free;
}
rcu_read_lock();
sem_lock_and_putref(sma);
if (sma->sem_perm.deleted) {
- sem_unlock(sma, -1);
- rcu_read_unlock();
err = -EIDRM;
- goto out_free;
+ goto out_unlock;
}
for (i = 0; i < nsems; i++)
goto out_rcu_wakeup;
sem_lock(sma, NULL, -1);
+ if (sma->sem_perm.deleted) {
+ err = -EIDRM;
+ goto out_unlock;
+ }
curr = &sma->sem_base[semnum];
switch (cmd) {
/* step 2: allocate new undo structure */
new = kzalloc(sizeof(struct sem_undo) + sizeof(short)*nsems, GFP_KERNEL);
if (!new) {
- sem_putref(sma);
+ ipc_rcu_putref(sma, ipc_rcu_free);
return ERR_PTR(-ENOMEM);
}
if (error)
goto out_rcu_wakeup;
+ error = -EIDRM;
+ locknum = sem_lock(sma, sops, nsops);
+ if (sma->sem_perm.deleted)
+ goto out_unlock_free;
/*
* semid identifiers are not unique - find_alloc_undo may have
* allocated an undo structure, it was invalidated by an RMID
* This case can be detected checking un->semid. The existence of
* "un" itself is guaranteed by rcu.
*/
- error = -EIDRM;
- locknum = sem_lock(sma, sops, nsops);
if (un && un->semid == -1)
goto out_unlock_free;
error = perform_atomic_semop(sma, sops, nsops, un,
task_tgid_vnr(current));
- if (error <= 0) {
- if (alter && error == 0)
+ if (error == 0) {
+ /* If the operation was successful, then do
+ * the required updates.
+ */
+ if (alter)
do_smart_update(sma, sops, nsops, 1, &tasks);
-
- goto out_unlock_free;
+ else
+ set_semotime(sma, sops);
}
+ if (error <= 0)
+ goto out_unlock_free;
/* We need to sleep on this operation, so we put the current
* task into the pending queue and go to sleep.
}
sem_lock(sma, NULL, -1);
+ /* exit_sem raced with IPC_RMID, nothing to do */
+ if (sma->sem_perm.deleted) {
+ sem_unlock(sma, -1);
+ rcu_read_unlock();
+ continue;
+ }
un = __lookup_undo(ulp, semid);
if (un == NULL) {
/* exit_sem raced with IPC_RMID+semget() that created
struct sem_array *sma = it;
time_t sem_otime;
+ /*
+ * The proc interface isn't aware of sem_lock(), it calls
+ * ipc_lock_object() directly (in sysvipc_find_ipc).
+ * In order to stay compatible with sem_lock(), we must wait until
+ * all simple semop() calls have left their critical regions.
+ */
+ sem_wait_array(sma);
+
sem_otime = get_semotime(sma);
return seq_printf(s,
ipc_lock_object(&ipcp->shm_perm);
}
+static void shm_rcu_free(struct rcu_head *head)
+{
+ struct ipc_rcu *p = container_of(head, struct ipc_rcu, rcu);
+ struct shmid_kernel *shp = ipc_rcu_to_struct(p);
+
+ security_shm_free(shp);
+ ipc_rcu_free(head);
+}
+
static inline void shm_rmid(struct ipc_namespace *ns, struct shmid_kernel *s)
{
ipc_rmid(&shm_ids(ns), &s->shm_perm);
user_shm_unlock(file_inode(shp->shm_file)->i_size,
shp->mlock_user);
fput (shp->shm_file);
- security_shm_free(shp);
- ipc_rcu_putref(shp);
+ ipc_rcu_putref(shp, shm_rcu_free);
}
/*
shp->shm_perm.security = NULL;
error = security_shm_alloc(shp);
if (error) {
- ipc_rcu_putref(shp);
+ ipc_rcu_putref(shp, ipc_rcu_free);
return error;
}
user_shm_unlock(size, shp->mlock_user);
fput(file);
no_file:
- security_shm_free(shp);
- ipc_rcu_putref(shp);
+ ipc_rcu_putref(shp, shm_rcu_free);
return error;
}
* Pavel Emelianov <xemul@openvz.org>
*
* General sysv ipc locking scheme:
- * when doing ipc id lookups, take the ids->rwsem
- * rcu_read_lock()
- * obtain the ipc object (kern_ipc_perm)
- * perform security, capabilities, auditing and permission checks, etc.
- * acquire the ipc lock (kern_ipc_perm.lock) throught ipc_lock_object()
- * perform data updates (ie: SET, RMID, LOCK/UNLOCK commands)
+ * rcu_read_lock()
+ * obtain the ipc object (kern_ipc_perm) by looking up the id in an idr
+ * tree.
+ * - perform initial checks (capabilities, auditing and permission,
+ * etc).
+ * - perform read-only operations, such as STAT, INFO commands.
+ * acquire the ipc lock (kern_ipc_perm.lock) through
+ * ipc_lock_object()
+ * - perform data updates, such as SET, RMID commands and
+ * mechanism-specific operations (semop/semtimedop,
+ * msgsnd/msgrcv, shmat/shmdt).
+ * drop the ipc lock, through ipc_unlock_object().
+ * rcu_read_unlock()
+ *
+ * The ids->rwsem must be taken when:
+ * - creating, removing and iterating the existing entries in ipc
+ * identifier sets.
+ * - iterating through files under /proc/sysvipc/
+ *
+ * Note that sems have a special fast path that avoids kern_ipc_perm.lock -
+ * see sem_lock().
*/
#include <linux/mm.h>
kfree(ptr);
}
-struct ipc_rcu {
- struct rcu_head rcu;
- atomic_t refcount;
-} ____cacheline_aligned_in_smp;
-
/**
* ipc_rcu_alloc - allocate ipc and rcu space
* @size: size desired
return atomic_inc_not_zero(&p->refcount);
}
-/**
- * ipc_schedule_free - free ipc + rcu space
- * @head: RCU callback structure for queued work
- */
-static void ipc_schedule_free(struct rcu_head *head)
-{
- vfree(container_of(head, struct ipc_rcu, rcu));
-}
-
-void ipc_rcu_putref(void *ptr)
+void ipc_rcu_putref(void *ptr, void (*func)(struct rcu_head *head))
{
struct ipc_rcu *p = ((struct ipc_rcu *)ptr) - 1;
if (!atomic_dec_and_test(&p->refcount))
return;
- if (is_vmalloc_addr(ptr)) {
- call_rcu(&p->rcu, ipc_schedule_free);
- } else {
- kfree_rcu(p, rcu);
- }
+ call_rcu(&p->rcu, func);
+}
+
+void ipc_rcu_free(struct rcu_head *head)
+{
+ struct ipc_rcu *p = container_of(head, struct ipc_rcu, rcu);
+
+ if (is_vmalloc_addr(p))
+ vfree(p);
+ else
+ kfree(p);
}
/**
static inline void shm_exit_ns(struct ipc_namespace *ns) { }
#endif
+struct ipc_rcu {
+ struct rcu_head rcu;
+ atomic_t refcount;
+} ____cacheline_aligned_in_smp;
+
+#define ipc_rcu_to_struct(p) ((void *)(p+1))
+
/*
* Structure that holds the parameters needed by the ipc operations
* (see after)
*/
void* ipc_rcu_alloc(int size);
int ipc_rcu_getref(void *ptr);
-void ipc_rcu_putref(void *ptr);
+void ipc_rcu_putref(void *ptr, void (*func)(struct rcu_head *head));
+void ipc_rcu_free(struct rcu_head *head);
struct kern_ipc_perm *ipc_lock(struct ipc_ids *, int);
struct kern_ipc_perm *ipc_obtain_object(struct ipc_ids *ids, int id);
sleep_time = timeout_start + audit_backlog_wait_time -
jiffies;
- if ((long)sleep_time > 0)
+ if ((long)sleep_time > 0) {
wait_for_auditd(sleep_time);
- continue;
+ continue;
+ }
}
if (audit_rate_check() && printk_ratelimit())
printk(KERN_WARNING
/* @tsk either already exited or can't exit until the end */
if (tsk->flags & PF_EXITING)
- continue;
+ goto next;
/* as per above, nr_threads may decrease, but not increase. */
BUG_ON(i >= group_size);
ent.cgrp = task_cgroup_from_root(tsk, root);
/* nothing to do if this task is already in the cgroup */
if (ent.cgrp == cgrp)
- continue;
+ goto next;
/*
* saying GFP_ATOMIC has no effect here because we did prealloc
* earlier, but it's good form to communicate our expectations.
retval = flex_array_put(group, i, &ent, GFP_ATOMIC);
BUG_ON(retval != 0);
i++;
-
+ next:
if (!threadgroup)
break;
} while_each_thread(leader, tsk);
WARN_ON_ONCE(!rcu_read_lock_held());
- /* if first iteration, visit the leftmost descendant */
- if (!pos) {
- next = css_leftmost_descendant(root);
- return next != root ? next : NULL;
- }
+ /* if first iteration, visit leftmost descendant which may be @root */
+ if (!pos)
+ return css_leftmost_descendant(root);
/* if we visited @root, we're done */
if (pos == root)
{
unsigned long flags;
+ /*
+ * Repeat the user_enter() check here because some archs may be calling
+ * this from asm and if no CPU needs context tracking, they shouldn't
+ * go further. Repeat the check here until they support the static key
+ * check.
+ */
+ if (!static_key_false(&context_tracking_enabled))
+ return;
+
/*
* Some contexts may involve an exception occuring in an irq,
* leading to that nesting:
{
unsigned long flags;
+ if (!static_key_false(&context_tracking_enabled))
+ return;
+
if (in_interrupt())
return;
*running = ctx_time - event->tstamp_running;
}
+static void perf_event_init_userpage(struct perf_event *event)
+{
+ struct perf_event_mmap_page *userpg;
+ struct ring_buffer *rb;
+
+ rcu_read_lock();
+ rb = rcu_dereference(event->rb);
+ if (!rb)
+ goto unlock;
+
+ userpg = rb->user_page;
+
+ /* Allow new userspace to detect that bit 0 is deprecated */
+ userpg->cap_bit0_is_deprecated = 1;
+ userpg->size = offsetof(struct perf_event_mmap_page, __reserved);
+
+unlock:
+ rcu_read_unlock();
+}
+
void __weak arch_perf_update_userpage(struct perf_event_mmap_page *userpg, u64 now)
{
}
ring_buffer_attach(event, rb);
rcu_assign_pointer(event->rb, rb);
+ perf_event_init_userpage(event);
perf_event_update_userpage(event);
unlock:
if (ret)
return -EFAULT;
+ /* disabled for now */
+ if (attr->mmap2)
+ return -EINVAL;
+
if (attr->__reserved_1)
return -EINVAL;
perf_remove_from_context(event);
unaccount_event_cpu(event, src_cpu);
put_ctx(src_ctx);
- list_add(&event->event_entry, &events);
+ list_add(&event->migrate_entry, &events);
}
mutex_unlock(&src_ctx->mutex);
synchronize_rcu();
mutex_lock(&dst_ctx->mutex);
- list_for_each_entry_safe(event, tmp, &events, event_entry) {
- list_del(&event->event_entry);
+ list_for_each_entry_safe(event, tmp, &events, migrate_entry) {
+ list_del(&event->migrate_entry);
if (event->state >= PERF_EVENT_STATE_OFF)
event->state = PERF_EVENT_STATE_INACTIVE;
account_event_cpu(event, dst_cpu);
DECLARE_COMPLETION_ONSTACK(done);
int retval = 0;
+ if (!sub_info->path) {
+ call_usermodehelper_freeinfo(sub_info);
+ return -EINVAL;
+ }
helper_lock();
if (!khelper_wq || usermodehelper_disabled) {
retval = -EBUSY;
static __always_inline int __sched
__mutex_lock_common(struct mutex *lock, long state, unsigned int subclass,
struct lockdep_map *nest_lock, unsigned long ip,
- struct ww_acquire_ctx *ww_ctx)
+ struct ww_acquire_ctx *ww_ctx, const bool use_ww_ctx)
{
struct task_struct *task = current;
struct mutex_waiter waiter;
struct task_struct *owner;
struct mspin_node node;
- if (!__builtin_constant_p(ww_ctx == NULL) && ww_ctx->acquired > 0) {
+ if (use_ww_ctx && ww_ctx->acquired > 0) {
struct ww_mutex *ww;
ww = container_of(lock, struct ww_mutex, base);
if ((atomic_read(&lock->count) == 1) &&
(atomic_cmpxchg(&lock->count, 1, 0) == 1)) {
lock_acquired(&lock->dep_map, ip);
- if (!__builtin_constant_p(ww_ctx == NULL)) {
+ if (use_ww_ctx) {
struct ww_mutex *ww;
ww = container_of(lock, struct ww_mutex, base);
goto err;
}
- if (!__builtin_constant_p(ww_ctx == NULL) && ww_ctx->acquired > 0) {
+ if (use_ww_ctx && ww_ctx->acquired > 0) {
ret = __mutex_lock_check_stamp(lock, ww_ctx);
if (ret)
goto err;
lock_acquired(&lock->dep_map, ip);
mutex_set_owner(lock);
- if (!__builtin_constant_p(ww_ctx == NULL)) {
+ if (use_ww_ctx) {
struct ww_mutex *ww = container_of(lock, struct ww_mutex, base);
struct mutex_waiter *cur;
{
might_sleep();
__mutex_lock_common(lock, TASK_UNINTERRUPTIBLE,
- subclass, NULL, _RET_IP_, NULL);
+ subclass, NULL, _RET_IP_, NULL, 0);
}
EXPORT_SYMBOL_GPL(mutex_lock_nested);
{
might_sleep();
__mutex_lock_common(lock, TASK_UNINTERRUPTIBLE,
- 0, nest, _RET_IP_, NULL);
+ 0, nest, _RET_IP_, NULL, 0);
}
EXPORT_SYMBOL_GPL(_mutex_lock_nest_lock);
{
might_sleep();
return __mutex_lock_common(lock, TASK_KILLABLE,
- subclass, NULL, _RET_IP_, NULL);
+ subclass, NULL, _RET_IP_, NULL, 0);
}
EXPORT_SYMBOL_GPL(mutex_lock_killable_nested);
{
might_sleep();
return __mutex_lock_common(lock, TASK_INTERRUPTIBLE,
- subclass, NULL, _RET_IP_, NULL);
+ subclass, NULL, _RET_IP_, NULL, 0);
}
EXPORT_SYMBOL_GPL(mutex_lock_interruptible_nested);
might_sleep();
ret = __mutex_lock_common(&lock->base, TASK_UNINTERRUPTIBLE,
- 0, &ctx->dep_map, _RET_IP_, ctx);
+ 0, &ctx->dep_map, _RET_IP_, ctx, 1);
if (!ret && ctx->acquired > 1)
return ww_mutex_deadlock_injection(lock, ctx);
might_sleep();
ret = __mutex_lock_common(&lock->base, TASK_INTERRUPTIBLE,
- 0, &ctx->dep_map, _RET_IP_, ctx);
+ 0, &ctx->dep_map, _RET_IP_, ctx, 1);
if (!ret && ctx->acquired > 1)
return ww_mutex_deadlock_injection(lock, ctx);
struct mutex *lock = container_of(lock_count, struct mutex, count);
__mutex_lock_common(lock, TASK_UNINTERRUPTIBLE, 0,
- NULL, _RET_IP_, NULL);
+ NULL, _RET_IP_, NULL, 0);
}
static noinline int __sched
__mutex_lock_killable_slowpath(struct mutex *lock)
{
return __mutex_lock_common(lock, TASK_KILLABLE, 0,
- NULL, _RET_IP_, NULL);
+ NULL, _RET_IP_, NULL, 0);
}
static noinline int __sched
__mutex_lock_interruptible_slowpath(struct mutex *lock)
{
return __mutex_lock_common(lock, TASK_INTERRUPTIBLE, 0,
- NULL, _RET_IP_, NULL);
+ NULL, _RET_IP_, NULL, 0);
}
static noinline int __sched
__ww_mutex_lock_slowpath(struct ww_mutex *lock, struct ww_acquire_ctx *ctx)
{
return __mutex_lock_common(&lock->base, TASK_UNINTERRUPTIBLE, 0,
- NULL, _RET_IP_, ctx);
+ NULL, _RET_IP_, ctx, 1);
}
static noinline int __sched
struct ww_acquire_ctx *ctx)
{
return __mutex_lock_common(&lock->base, TASK_INTERRUPTIBLE, 0,
- NULL, _RET_IP_, ctx);
+ NULL, _RET_IP_, ctx, 1);
}
#endif
STANDARD_PARAM_DEF(byte, unsigned char, "%hhu", unsigned long, kstrtoul);
-STANDARD_PARAM_DEF(short, short, "%hi", long, kstrtoul);
+STANDARD_PARAM_DEF(short, short, "%hi", long, kstrtol);
STANDARD_PARAM_DEF(ushort, unsigned short, "%hu", unsigned long, kstrtoul);
-STANDARD_PARAM_DEF(int, int, "%i", long, kstrtoul);
+STANDARD_PARAM_DEF(int, int, "%i", long, kstrtol);
STANDARD_PARAM_DEF(uint, unsigned int, "%u", unsigned long, kstrtoul);
-STANDARD_PARAM_DEF(long, long, "%li", long, kstrtoul);
+STANDARD_PARAM_DEF(long, long, "%li", long, kstrtol);
STANDARD_PARAM_DEF(ulong, unsigned long, "%lu", unsigned long, kstrtoul);
int param_set_charp(const char *val, const struct kernel_param *kp)
*/
wake_up_process(ns->child_reaper);
break;
+ case PIDNS_HASH_ADDING:
+ /* Handle a fork failure of the first process */
+ WARN_ON(ns->child_reaper);
+ ns->nr_hashed = 0;
+ /* fall through */
case 0:
schedule_work(&ns->proc_work);
break;
def_bool y
depends on PM_DEBUG && PM_SLEEP
+config DPM_WATCHDOG
+ bool "Device suspend/resume watchdog"
+ depends on PM_DEBUG && PSTORE
+ ---help---
+ Sets up a watchdog timer to capture drivers that are
+ locked up attempting to suspend/resume a device.
+ A detected lockup causes system panic with message
+ captured in pstore device for inspection in subsequent
+ boot session.
+
+config DPM_WATCHDOG_TIMEOUT
+ int "Watchdog timeout in seconds"
+ range 1 120
+ default 12
+ depends on DPM_WATCHDOG
+
config PM_TRACE
bool
help
goto Finish;
}
-late_initcall(software_resume);
+late_initcall_sync(software_resume);
static const char * const hibernation_modes[] = {
if (count == sizeof(s32)) {
if (copy_from_user(&value, buf, sizeof(s32)))
return -EFAULT;
- } else if (count <= 11) { /* ASCII perhaps? */
- char ascii_value[11];
- unsigned long int ulval;
+ } else {
int ret;
- if (copy_from_user(ascii_value, buf, count))
- return -EFAULT;
-
- if (count > 10) {
- if (ascii_value[10] == '\n')
- ascii_value[10] = '\0';
- else
- return -EINVAL;
- } else {
- ascii_value[count] = '\0';
- }
- ret = kstrtoul(ascii_value, 16, &ulval);
- if (ret) {
- pr_debug("%s, 0x%lx, 0x%x\n", ascii_value, ulval, ret);
- return -EINVAL;
- }
- value = (s32)lower_32_bits(ulval);
- } else {
- return -EINVAL;
+ ret = kstrtos32_from_user(buf, count, 16, &value);
+ if (ret)
+ return ret;
}
req = filp->private_data;
struct memory_bitmap *bm1, *bm2;
int error = 0;
- BUG_ON(forbidden_pages_map || free_pages_map);
+ if (forbidden_pages_map && free_pages_map)
+ return 0;
+ else
+ BUG_ON(forbidden_pages_map || free_pages_map);
bm1 = kzalloc(sizeof(struct memory_bitmap), GFP_KERNEL);
if (!bm1)
struct snapshot_handle handle;
int swap;
int mode;
- char frozen;
- char ready;
- char platform_support;
+ bool frozen;
+ bool ready;
+ bool platform_support;
+ bool free_bitmaps;
} snapshot_state;
atomic_t snapshot_device_available = ATOMIC_INIT(1);
data->swap = -1;
data->mode = O_WRONLY;
error = pm_notifier_call_chain(PM_RESTORE_PREPARE);
+ if (!error) {
+ error = create_basic_memory_bitmaps();
+ data->free_bitmaps = !error;
+ }
if (error)
pm_notifier_call_chain(PM_POST_RESTORE);
}
if (error)
atomic_inc(&snapshot_device_available);
- data->frozen = 0;
- data->ready = 0;
- data->platform_support = 0;
+ data->frozen = false;
+ data->ready = false;
+ data->platform_support = false;
Unlock:
unlock_system_sleep();
pm_restore_gfp_mask();
free_basic_memory_bitmaps();
thaw_processes();
+ } else if (data->free_bitmaps) {
+ free_basic_memory_bitmaps();
}
pm_notifier_call_chain(data->mode == O_RDONLY ?
PM_POST_HIBERNATION : PM_POST_RESTORE);
if (error)
thaw_processes();
else
- data->frozen = 1;
+ data->frozen = true;
break;
break;
pm_restore_gfp_mask();
free_basic_memory_bitmaps();
+ data->free_bitmaps = false;
thaw_processes();
- data->frozen = 0;
+ data->frozen = false;
break;
case SNAPSHOT_CREATE_IMAGE:
case SNAPSHOT_FREE:
swsusp_free();
memset(&data->handle, 0, sizeof(struct snapshot_handle));
- data->ready = 0;
+ data->ready = false;
/*
* It is necessary to thaw kernel threads here, because
* SNAPSHOT_CREATE_IMAGE may be invoked directly after
* PM_HIBERNATION_PREPARE
*/
error = suspend_devices_and_enter(PM_SUSPEND_MEM);
- data->ready = 0;
+ data->ready = false;
break;
case SNAPSHOT_PLATFORM_SUPPORT:
#endif
enum reboot_mode reboot_mode DEFAULT_REBOOT_MODE;
-int reboot_default;
+/*
+ * This variable is used privately to keep track of whether or not
+ * reboot_type is still set to its default value (i.e., reboot= hasn't
+ * been set on the command line). This is needed so that we can
+ * suppress DMI scanning for reboot quirks. Without it, it's
+ * impossible to override a faulty reboot quirk without recompiling.
+ */
+int reboot_default = 1;
int reboot_cpu;
enum reboot_type reboot_type = BOOT_ACPI;
int reboot_force;
}
if (!se) {
- cfs_rq->h_load = rq->avg.load_avg_contrib;
+ cfs_rq->h_load = cfs_rq->runnable_load_avg;
cfs_rq->last_h_load_update = now;
}
(busiest->load_per_task * SCHED_POWER_SCALE) /
busiest->group_power;
- if (busiest->avg_load - local->avg_load + scaled_busy_load_per_task >=
- (scaled_busy_load_per_task * imbn)) {
+ if (busiest->avg_load + scaled_busy_load_per_task >=
+ local->avg_load + (scaled_busy_load_per_task * imbn)) {
env->imbalance = busiest->load_per_task;
return;
}
* max load less than avg load(as we skip the groups at or below
* its cpu_power, while calculating max_load..)
*/
- if (busiest->avg_load < sds->avg_load) {
+ if (busiest->avg_load <= sds->avg_load ||
+ local->avg_load >= sds->avg_load) {
env->imbalance = 0;
return fix_small_imbalance(env, sds);
}
static inline void invoke_softirq(void)
{
- if (!force_irqthreads)
- __do_softirq();
- else
+ if (!force_irqthreads) {
+ /*
+ * We can safely execute softirq on the current stack if
+ * it is the irq stack, because it should be near empty
+ * at this stage. But we have no way to know if the arch
+ * calls irq_exit() on the irq stack. So call softirq
+ * in its own stack to prevent from any overrun on top
+ * of a potentially deep task stack.
+ */
+ do_softirq();
+ } else {
wakeup_softirqd();
+ }
}
static inline void tick_irq_exit(void)
int res;
};
-/**
- * clockevents_delta2ns - Convert a latch value (device ticks) to nanoseconds
- * @latch: value to convert
- * @evt: pointer to clock event device descriptor
- *
- * Math helper, returns latch value converted to nanoseconds (bound checked)
- */
-u64 clockevent_delta2ns(unsigned long latch, struct clock_event_device *evt)
+static u64 cev_delta2ns(unsigned long latch, struct clock_event_device *evt,
+ bool ismax)
{
u64 clc = (u64) latch << evt->shift;
+ u64 rnd;
if (unlikely(!evt->mult)) {
evt->mult = 1;
WARN_ON(1);
}
+ rnd = (u64) evt->mult - 1;
+
+ /*
+ * Upper bound sanity check. If the backwards conversion is
+ * not equal latch, we know that the above shift overflowed.
+ */
+ if ((clc >> evt->shift) != (u64)latch)
+ clc = ~0ULL;
+
+ /*
+ * Scaled math oddities:
+ *
+ * For mult <= (1 << shift) we can safely add mult - 1 to
+ * prevent integer rounding loss. So the backwards conversion
+ * from nsec to device ticks will be correct.
+ *
+ * For mult > (1 << shift), i.e. device frequency is > 1GHz we
+ * need to be careful. Adding mult - 1 will result in a value
+ * which when converted back to device ticks can be larger
+ * than latch by up to (mult - 1) >> shift. For the min_delta
+ * calculation we still want to apply this in order to stay
+ * above the minimum device ticks limit. For the upper limit
+ * we would end up with a latch value larger than the upper
+ * limit of the device, so we omit the add to stay below the
+ * device upper boundary.
+ *
+ * Also omit the add if it would overflow the u64 boundary.
+ */
+ if ((~0ULL - clc > rnd) &&
+ (!ismax || evt->mult <= (1U << evt->shift)))
+ clc += rnd;
do_div(clc, evt->mult);
- if (clc < 1000)
- clc = 1000;
- if (clc > KTIME_MAX)
- clc = KTIME_MAX;
- return clc;
+ /* Deltas less than 1usec are pointless noise */
+ return clc > 1000 ? clc : 1000;
+}
+
+/**
+ * clockevents_delta2ns - Convert a latch value (device ticks) to nanoseconds
+ * @latch: value to convert
+ * @evt: pointer to clock event device descriptor
+ *
+ * Math helper, returns latch value converted to nanoseconds (bound checked)
+ */
+u64 clockevent_delta2ns(unsigned long latch, struct clock_event_device *evt)
+{
+ return cev_delta2ns(latch, evt, false);
}
EXPORT_SYMBOL_GPL(clockevent_delta2ns);
sec = 600;
clockevents_calc_mult_shift(dev, freq, sec);
- dev->min_delta_ns = clockevent_delta2ns(dev->min_delta_ticks, dev);
- dev->max_delta_ns = clockevent_delta2ns(dev->max_delta_ticks, dev);
+ dev->min_delta_ns = cev_delta2ns(dev->min_delta_ticks, dev, false);
+ dev->max_delta_ns = cev_delta2ns(dev->max_delta_ticks, dev, true);
}
/**
.unpark = watchdog_enable,
};
-static int watchdog_enable_all_cpus(void)
+static void restart_watchdog_hrtimer(void *info)
+{
+ struct hrtimer *hrtimer = &__raw_get_cpu_var(watchdog_hrtimer);
+ int ret;
+
+ /*
+ * No need to cancel and restart hrtimer if it is currently executing
+ * because it will reprogram itself with the new period now.
+ * We should never see it unqueued here because we are running per-cpu
+ * with interrupts disabled.
+ */
+ ret = hrtimer_try_to_cancel(hrtimer);
+ if (ret == 1)
+ hrtimer_start(hrtimer, ns_to_ktime(sample_period),
+ HRTIMER_MODE_REL_PINNED);
+}
+
+static void update_timers(int cpu)
+{
+ struct call_single_data data = {.func = restart_watchdog_hrtimer};
+ /*
+ * Make sure that perf event counter will adopt to a new
+ * sampling period. Updating the sampling period directly would
+ * be much nicer but we do not have an API for that now so
+ * let's use a big hammer.
+ * Hrtimer will adopt the new period on the next tick but this
+ * might be late already so we have to restart the timer as well.
+ */
+ watchdog_nmi_disable(cpu);
+ __smp_call_function_single(cpu, &data, 1);
+ watchdog_nmi_enable(cpu);
+}
+
+static void update_timers_all_cpus(void)
+{
+ int cpu;
+
+ get_online_cpus();
+ preempt_disable();
+ for_each_online_cpu(cpu)
+ update_timers(cpu);
+ preempt_enable();
+ put_online_cpus();
+}
+
+static int watchdog_enable_all_cpus(bool sample_period_changed)
{
int err = 0;
pr_err("Failed to create watchdog threads, disabled\n");
else
watchdog_running = 1;
+ } else if (sample_period_changed) {
+ update_timers_all_cpus();
}
return err;
void __user *buffer, size_t *lenp, loff_t *ppos)
{
int err, old_thresh, old_enabled;
+ static DEFINE_MUTEX(watchdog_proc_mutex);
+ mutex_lock(&watchdog_proc_mutex);
old_thresh = ACCESS_ONCE(watchdog_thresh);
old_enabled = ACCESS_ONCE(watchdog_user_enabled);
err = proc_dointvec_minmax(table, write, buffer, lenp, ppos);
if (err || !write)
- return err;
+ goto out;
set_sample_period();
/*
* watchdog_*_all_cpus() function takes care of this.
*/
if (watchdog_user_enabled && watchdog_thresh)
- err = watchdog_enable_all_cpus();
+ err = watchdog_enable_all_cpus(old_thresh != watchdog_thresh);
else
watchdog_disable_all_cpus();
watchdog_thresh = old_thresh;
watchdog_user_enabled = old_enabled;
}
-
+out:
+ mutex_unlock(&watchdog_proc_mutex);
return err;
}
#endif /* CONFIG_SYSCTL */
set_sample_period();
if (watchdog_user_enabled)
- watchdog_enable_all_cpus();
+ watchdog_enable_all_cpus(false);
}
const char hex_asc[] = "0123456789abcdef";
EXPORT_SYMBOL(hex_asc);
+const char hex_asc_upper[] = "0123456789ABCDEF";
+EXPORT_SYMBOL(hex_asc_upper);
/**
* hex_to_bin - convert a hex digit to its real value
{
struct kobject *kobj = container_of(kref, struct kobject, kref);
#ifdef CONFIG_DEBUG_KOBJECT_RELEASE
- pr_debug("kobject: '%s' (%p): %s, parent %p (delayed)\n",
+ pr_info("kobject: '%s' (%p): %s, parent %p (delayed)\n",
kobject_name(kobj), kobj, __func__, kobj->parent);
INIT_DELAYED_WORK(&kobj->release, kobject_delayed_cleanup);
schedule_delayed_work(&kobj->release, HZ);
bool kobj_ns_current_may_mount(enum kobj_ns_type type)
{
- bool may_mount = false;
-
- if (type == KOBJ_NS_TYPE_NONE)
- return true;
+ bool may_mount = true;
spin_lock(&kobj_ns_type_lock);
if ((type > KOBJ_NS_TYPE_NONE) && (type < KOBJ_NS_TYPES) &&
#ifdef CONFIG_CMPXCHG_LOCKREF
+/*
+ * Allow weakly-ordered memory architectures to provide barrier-less
+ * cmpxchg semantics for lockref updates.
+ */
+#ifndef cmpxchg64_relaxed
+# define cmpxchg64_relaxed cmpxchg64
+#endif
+
+/*
+ * Allow architectures to override the default cpu_relax() within CMPXCHG_LOOP.
+ * This is useful for architectures with an expensive cpu_relax().
+ */
+#ifndef arch_mutex_cpu_relax
+# define arch_mutex_cpu_relax() cpu_relax()
+#endif
+
/*
* Note that the "cmpxchg()" reloads the "old" value for the
* failure case.
while (likely(arch_spin_value_unlocked(old.lock.rlock.raw_lock))) { \
struct lockref new = old, prev = old; \
CODE \
- old.lock_count = cmpxchg64(&lockref->lock_count, \
- old.lock_count, new.lock_count); \
+ old.lock_count = cmpxchg64_relaxed(&lockref->lock_count, \
+ old.lock_count, \
+ new.lock_count); \
if (likely(old.lock_count == prev.lock_count)) { \
SUCCESS; \
} \
- cpu_relax(); \
+ arch_mutex_cpu_relax(); \
} \
} while (0)
ref->release = release;
return 0;
}
+EXPORT_SYMBOL_GPL(percpu_ref_init);
/**
* percpu_ref_cancel_init - cancel percpu_ref_init()
free_percpu(ref->pcpu_count);
}
}
+EXPORT_SYMBOL_GPL(percpu_ref_cancel_init);
static void percpu_ref_kill_rcu(struct rcu_head *rcu)
{
call_rcu_sched(&ref->rcu, percpu_ref_kill_rcu);
}
+EXPORT_SYMBOL_GPL(percpu_ref_kill_and_confirm);
config MEMORY_HOTREMOVE
bool "Allow for memory hot remove"
select MEMORY_ISOLATION
- select HAVE_BOOTMEM_INFO_NODE if X86_64
+ select HAVE_BOOTMEM_INFO_NODE if (X86_64 || PPC64)
depends on MEMORY_HOTPLUG && ARCH_ENABLE_MEMORY_HOTREMOVE
depends on MIGRATION
struct bio_vec *to, *from;
unsigned i;
+ if (force)
+ goto bounce;
bio_for_each_segment(from, *bio_orig, i)
if (page_to_pfn(from->bv_page) > queue_bounce_pfn(q))
goto bounce;
pfn -= pageblock_nr_pages) {
unsigned long isolated;
+ /*
+ * This can iterate a massively long zone without finding any
+ * suitable migration targets, so periodically check if we need
+ * to schedule.
+ */
+ cond_resched();
+
if (!pfn_valid(pfn))
continue;
struct inode *inode = mapping->host;
pgoff_t offset = vmf->pgoff;
struct page *page;
- bool memcg_oom;
pgoff_t size;
int ret = 0;
return VM_FAULT_SIGBUS;
/*
- * Do we have something in the page cache already? Either
- * way, try readahead, but disable the memcg OOM killer for it
- * as readahead is optional and no errors are propagated up
- * the fault stack. The OOM killer is enabled while trying to
- * instantiate the faulting page individually below.
+ * Do we have something in the page cache already?
*/
page = find_get_page(mapping, offset);
if (likely(page) && !(vmf->flags & FAULT_FLAG_TRIED)) {
* We found the page, so try async readahead before
* waiting for the lock.
*/
- memcg_oom = mem_cgroup_toggle_oom(false);
do_async_mmap_readahead(vma, ra, file, page, offset);
- mem_cgroup_toggle_oom(memcg_oom);
} else if (!page) {
/* No page in the page cache at all */
- memcg_oom = mem_cgroup_toggle_oom(false);
do_sync_mmap_readahead(vma, ra, file, offset);
- mem_cgroup_toggle_oom(memcg_oom);
count_vm_event(PGMAJFAULT);
mem_cgroup_count_vm_event(vma->vm_mm, PGMAJFAULT);
ret = VM_FAULT_MAJOR;
mmun_start = haddr;
mmun_end = haddr + HPAGE_PMD_SIZE;
+again:
mmu_notifier_invalidate_range_start(mm, mmun_start, mmun_end);
spin_lock(&mm->page_table_lock);
if (unlikely(!pmd_trans_huge(*pmd))) {
split_huge_page(page);
put_page(page);
- BUG_ON(pmd_trans_huge(*pmd));
+
+ /*
+ * We don't always have down_write of mmap_sem here: a racing
+ * do_huge_pmd_wp_page() might have copied-on-write to another
+ * huge page before our split_huge_page() got the anon_vma lock.
+ */
+ if (unlikely(pmd_trans_huge(*pmd)))
+ goto again;
}
void split_huge_page_pmd_mm(struct mm_struct *mm, unsigned long address,
BUG_ON(page_count(page));
BUG_ON(page_mapcount(page));
restore_reserve = PagePrivate(page);
+ ClearPagePrivate(page);
spin_lock(&hugetlb_lock);
hugetlb_cgroup_uncharge_page(hstate_index(h),
/* we rely on prep_new_huge_page to set the destructor */
set_compound_order(page, order);
__SetPageHead(page);
+ __ClearPageReserved(page);
for (i = 1; i < nr_pages; i++, p = mem_map_next(p, page, i)) {
__SetPageTail(p);
+ /*
+ * For gigantic hugepages allocated through bootmem at
+ * boot, it's safer to be consistent with the not-gigantic
+ * hugepages and clear the PG_reserved bit from all tail pages
+ * too. Otherwse drivers using get_user_pages() to access tail
+ * pages may get the reference counting wrong if they see
+ * PG_reserved set on a tail page (despite the head page not
+ * having PG_reserved set). Enforcing this consistency between
+ * head and tail pages allows drivers to optimize away a check
+ * on the head page when they need know if put_page() is needed
+ * after get_user_pages().
+ */
+ __ClearPageReserved(p);
set_page_count(p, 0);
p->first_page = page;
}
#else
page = virt_to_page(m);
#endif
- __ClearPageReserved(page);
WARN_ON(page_count(page) != 1);
prep_compound_huge_page(page, h->order);
+ WARN_ON(PageReserved(page));
prep_new_huge_page(h, page, page_to_nid(page));
/*
* If we had gigantic hugepages allocated at boot time, we need
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- if (!hwpoison_filter_enable)
- goto inject;
if (!pfn_valid(pfn))
return -ENXIO;
if (!get_page_unless_zero(hpage))
return 0;
+ if (!hwpoison_filter_enable)
+ goto inject;
+
if (!PageLRU(p) && !PageHuge(p))
shake_page(p, 0);
/*
*/
static int madvise_hwpoison(int bhv, unsigned long start, unsigned long end)
{
+ struct page *p;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- for (; start < end; start += PAGE_SIZE) {
- struct page *p;
+ for (; start < end; start += PAGE_SIZE <<
+ compound_order(compound_head(p))) {
int ret;
ret = get_user_pages_fast(start, 1, 0, &p);
#include <linux/limits.h>
#include <linux/export.h>
#include <linux/mutex.h>
+#include <linux/rbtree.h>
#include <linux/slab.h>
#include <linux/swap.h>
#include <linux/swapops.h>
struct mem_cgroup_reclaim_iter reclaim_iter[DEF_PRIORITY + 1];
+ struct rb_node tree_node; /* RB tree node */
+ unsigned long long usage_in_excess;/* Set to the value by which */
+ /* the soft limit is exceeded*/
+ bool on_tree;
struct mem_cgroup *memcg; /* Back pointer, we cannot */
/* use container_of */
};
struct mem_cgroup_per_zone zoneinfo[MAX_NR_ZONES];
};
+/*
+ * Cgroups above their limits are maintained in a RB-Tree, independent of
+ * their hierarchy representation
+ */
+
+struct mem_cgroup_tree_per_zone {
+ struct rb_root rb_root;
+ spinlock_t lock;
+};
+
+struct mem_cgroup_tree_per_node {
+ struct mem_cgroup_tree_per_zone rb_tree_per_zone[MAX_NR_ZONES];
+};
+
+struct mem_cgroup_tree {
+ struct mem_cgroup_tree_per_node *rb_tree_per_node[MAX_NUMNODES];
+};
+
+static struct mem_cgroup_tree soft_limit_tree __read_mostly;
+
struct mem_cgroup_threshold {
struct eventfd_ctx *eventfd;
u64 threshold;
atomic_t numainfo_events;
atomic_t numainfo_updating;
#endif
- /*
- * Protects soft_contributed transitions.
- * See mem_cgroup_update_soft_limit
- */
- spinlock_t soft_lock;
-
- /*
- * If true then this group has increased parents' children_in_excess
- * when it got over the soft limit.
- * When a group falls bellow the soft limit, parents' children_in_excess
- * is decreased and soft_contributed changed to false.
- */
- bool soft_contributed;
-
- /* Number of children that are in soft limit excess */
- atomic_t children_in_excess;
struct mem_cgroup_per_node *nodeinfo[0];
/* WARNING: nodeinfo must be the last member here */
* limit reclaim to prevent infinite loops, if they ever occur.
*/
#define MEM_CGROUP_MAX_RECLAIM_LOOPS 100
+#define MEM_CGROUP_MAX_SOFT_LIMIT_RECLAIM_LOOPS 2
enum charge_type {
MEM_CGROUP_CHARGE_TYPE_CACHE = 0,
return mem_cgroup_zoneinfo(memcg, nid, zid);
}
+static struct mem_cgroup_tree_per_zone *
+soft_limit_tree_node_zone(int nid, int zid)
+{
+ return &soft_limit_tree.rb_tree_per_node[nid]->rb_tree_per_zone[zid];
+}
+
+static struct mem_cgroup_tree_per_zone *
+soft_limit_tree_from_page(struct page *page)
+{
+ int nid = page_to_nid(page);
+ int zid = page_zonenum(page);
+
+ return &soft_limit_tree.rb_tree_per_node[nid]->rb_tree_per_zone[zid];
+}
+
+static void
+__mem_cgroup_insert_exceeded(struct mem_cgroup *memcg,
+ struct mem_cgroup_per_zone *mz,
+ struct mem_cgroup_tree_per_zone *mctz,
+ unsigned long long new_usage_in_excess)
+{
+ struct rb_node **p = &mctz->rb_root.rb_node;
+ struct rb_node *parent = NULL;
+ struct mem_cgroup_per_zone *mz_node;
+
+ if (mz->on_tree)
+ return;
+
+ mz->usage_in_excess = new_usage_in_excess;
+ if (!mz->usage_in_excess)
+ return;
+ while (*p) {
+ parent = *p;
+ mz_node = rb_entry(parent, struct mem_cgroup_per_zone,
+ tree_node);
+ if (mz->usage_in_excess < mz_node->usage_in_excess)
+ p = &(*p)->rb_left;
+ /*
+ * We can't avoid mem cgroups that are over their soft
+ * limit by the same amount
+ */
+ else if (mz->usage_in_excess >= mz_node->usage_in_excess)
+ p = &(*p)->rb_right;
+ }
+ rb_link_node(&mz->tree_node, parent, p);
+ rb_insert_color(&mz->tree_node, &mctz->rb_root);
+ mz->on_tree = true;
+}
+
+static void
+__mem_cgroup_remove_exceeded(struct mem_cgroup *memcg,
+ struct mem_cgroup_per_zone *mz,
+ struct mem_cgroup_tree_per_zone *mctz)
+{
+ if (!mz->on_tree)
+ return;
+ rb_erase(&mz->tree_node, &mctz->rb_root);
+ mz->on_tree = false;
+}
+
+static void
+mem_cgroup_remove_exceeded(struct mem_cgroup *memcg,
+ struct mem_cgroup_per_zone *mz,
+ struct mem_cgroup_tree_per_zone *mctz)
+{
+ spin_lock(&mctz->lock);
+ __mem_cgroup_remove_exceeded(memcg, mz, mctz);
+ spin_unlock(&mctz->lock);
+}
+
+
+static void mem_cgroup_update_tree(struct mem_cgroup *memcg, struct page *page)
+{
+ unsigned long long excess;
+ struct mem_cgroup_per_zone *mz;
+ struct mem_cgroup_tree_per_zone *mctz;
+ int nid = page_to_nid(page);
+ int zid = page_zonenum(page);
+ mctz = soft_limit_tree_from_page(page);
+
+ /*
+ * Necessary to update all ancestors when hierarchy is used.
+ * because their event counter is not touched.
+ */
+ for (; memcg; memcg = parent_mem_cgroup(memcg)) {
+ mz = mem_cgroup_zoneinfo(memcg, nid, zid);
+ excess = res_counter_soft_limit_excess(&memcg->res);
+ /*
+ * We have to update the tree if mz is on RB-tree or
+ * mem is over its softlimit.
+ */
+ if (excess || mz->on_tree) {
+ spin_lock(&mctz->lock);
+ /* if on-tree, remove it */
+ if (mz->on_tree)
+ __mem_cgroup_remove_exceeded(memcg, mz, mctz);
+ /*
+ * Insert again. mz->usage_in_excess will be updated.
+ * If excess is 0, no tree ops.
+ */
+ __mem_cgroup_insert_exceeded(memcg, mz, mctz, excess);
+ spin_unlock(&mctz->lock);
+ }
+ }
+}
+
+static void mem_cgroup_remove_from_trees(struct mem_cgroup *memcg)
+{
+ int node, zone;
+ struct mem_cgroup_per_zone *mz;
+ struct mem_cgroup_tree_per_zone *mctz;
+
+ for_each_node(node) {
+ for (zone = 0; zone < MAX_NR_ZONES; zone++) {
+ mz = mem_cgroup_zoneinfo(memcg, node, zone);
+ mctz = soft_limit_tree_node_zone(node, zone);
+ mem_cgroup_remove_exceeded(memcg, mz, mctz);
+ }
+ }
+}
+
+static struct mem_cgroup_per_zone *
+__mem_cgroup_largest_soft_limit_node(struct mem_cgroup_tree_per_zone *mctz)
+{
+ struct rb_node *rightmost = NULL;
+ struct mem_cgroup_per_zone *mz;
+
+retry:
+ mz = NULL;
+ rightmost = rb_last(&mctz->rb_root);
+ if (!rightmost)
+ goto done; /* Nothing to reclaim from */
+
+ mz = rb_entry(rightmost, struct mem_cgroup_per_zone, tree_node);
+ /*
+ * Remove the node now but someone else can add it back,
+ * we will to add it back at the end of reclaim to its correct
+ * position in the tree.
+ */
+ __mem_cgroup_remove_exceeded(mz->memcg, mz, mctz);
+ if (!res_counter_soft_limit_excess(&mz->memcg->res) ||
+ !css_tryget(&mz->memcg->css))
+ goto retry;
+done:
+ return mz;
+}
+
+static struct mem_cgroup_per_zone *
+mem_cgroup_largest_soft_limit_node(struct mem_cgroup_tree_per_zone *mctz)
+{
+ struct mem_cgroup_per_zone *mz;
+
+ spin_lock(&mctz->lock);
+ mz = __mem_cgroup_largest_soft_limit_node(mctz);
+ spin_unlock(&mctz->lock);
+ return mz;
+}
+
/*
* Implementation Note: reading percpu statistics for memcg.
*
unsigned long val = 0;
int cpu;
+ get_online_cpus();
for_each_online_cpu(cpu)
val += per_cpu(memcg->stat->events[idx], cpu);
#ifdef CONFIG_HOTPLUG_CPU
val += memcg->nocpu_base.events[idx];
spin_unlock(&memcg->pcp_counter_lock);
#endif
+ put_online_cpus();
return val;
}
return false;
}
-/*
- * Called from rate-limited memcg_check_events when enough
- * MEM_CGROUP_TARGET_SOFTLIMIT events are accumulated and it makes sure
- * that all the parents up the hierarchy will be notified that this group
- * is in excess or that it is not in excess anymore. mmecg->soft_contributed
- * makes the transition a single action whenever the state flips from one to
- * the other.
- */
-static void mem_cgroup_update_soft_limit(struct mem_cgroup *memcg)
-{
- unsigned long long excess = res_counter_soft_limit_excess(&memcg->res);
- struct mem_cgroup *parent = memcg;
- int delta = 0;
-
- spin_lock(&memcg->soft_lock);
- if (excess) {
- if (!memcg->soft_contributed) {
- delta = 1;
- memcg->soft_contributed = true;
- }
- } else {
- if (memcg->soft_contributed) {
- delta = -1;
- memcg->soft_contributed = false;
- }
- }
-
- /*
- * Necessary to update all ancestors when hierarchy is used
- * because their event counter is not touched.
- * We track children even outside the hierarchy for the root
- * cgroup because tree walk starting at root should visit
- * all cgroups and we want to prevent from pointless tree
- * walk if no children is below the limit.
- */
- while (delta && (parent = parent_mem_cgroup(parent)))
- atomic_add(delta, &parent->children_in_excess);
- if (memcg != root_mem_cgroup && !root_mem_cgroup->use_hierarchy)
- atomic_add(delta, &root_mem_cgroup->children_in_excess);
- spin_unlock(&memcg->soft_lock);
-}
-
/*
* Check events in order.
*
mem_cgroup_threshold(memcg);
if (unlikely(do_softlimit))
- mem_cgroup_update_soft_limit(memcg);
+ mem_cgroup_update_tree(memcg, page);
#if MAX_NUMNODES > 1
if (unlikely(do_numainfo))
atomic_inc(&memcg->numainfo_events);
return memcg;
}
-static enum mem_cgroup_filter_t
-mem_cgroup_filter(struct mem_cgroup *memcg, struct mem_cgroup *root,
- mem_cgroup_iter_filter cond)
-{
- if (!cond)
- return VISIT;
- return cond(memcg, root);
-}
-
/*
* Returns a next (in a pre-order walk) alive memcg (with elevated css
* ref. count) or NULL if the whole root's subtree has been visited.
* helper function to be used by mem_cgroup_iter
*/
static struct mem_cgroup *__mem_cgroup_iter_next(struct mem_cgroup *root,
- struct mem_cgroup *last_visited, mem_cgroup_iter_filter cond)
+ struct mem_cgroup *last_visited)
{
struct cgroup_subsys_state *prev_css, *next_css;
if (next_css) {
struct mem_cgroup *mem = mem_cgroup_from_css(next_css);
- switch (mem_cgroup_filter(mem, root, cond)) {
- case SKIP:
+ if (css_tryget(&mem->css))
+ return mem;
+ else {
prev_css = next_css;
goto skip_node;
- case SKIP_TREE:
- if (mem == root)
- return NULL;
- /*
- * css_rightmost_descendant is not an optimal way to
- * skip through a subtree (especially for imbalanced
- * trees leaning to right) but that's what we have right
- * now. More effective solution would be traversing
- * right-up for first non-NULL without calling
- * css_next_descendant_pre afterwards.
- */
- prev_css = css_rightmost_descendant(next_css);
- goto skip_node;
- case VISIT:
- if (css_tryget(&mem->css))
- return mem;
- else {
- prev_css = next_css;
- goto skip_node;
- }
- break;
}
}
* @root: hierarchy root
* @prev: previously returned memcg, NULL on first invocation
* @reclaim: cookie for shared reclaim walks, NULL for full walks
- * @cond: filter for visited nodes, NULL for no filter
*
* Returns references to children of the hierarchy below @root, or
* @root itself, or %NULL after a full round-trip.
* divide up the memcgs in the hierarchy among all concurrent
* reclaimers operating on the same zone and priority.
*/
-struct mem_cgroup *mem_cgroup_iter_cond(struct mem_cgroup *root,
+struct mem_cgroup *mem_cgroup_iter(struct mem_cgroup *root,
struct mem_cgroup *prev,
- struct mem_cgroup_reclaim_cookie *reclaim,
- mem_cgroup_iter_filter cond)
+ struct mem_cgroup_reclaim_cookie *reclaim)
{
struct mem_cgroup *memcg = NULL;
struct mem_cgroup *last_visited = NULL;
- if (mem_cgroup_disabled()) {
- /* first call must return non-NULL, second return NULL */
- return (struct mem_cgroup *)(unsigned long)!prev;
- }
+ if (mem_cgroup_disabled())
+ return NULL;
if (!root)
root = root_mem_cgroup;
if (!root->use_hierarchy && root != root_mem_cgroup) {
if (prev)
goto out_css_put;
- if (mem_cgroup_filter(root, root, cond) == VISIT)
- return root;
- return NULL;
+ return root;
}
rcu_read_lock();
last_visited = mem_cgroup_iter_load(iter, root, &seq);
}
- memcg = __mem_cgroup_iter_next(root, last_visited, cond);
+ memcg = __mem_cgroup_iter_next(root, last_visited);
if (reclaim) {
mem_cgroup_iter_update(iter, last_visited, memcg, seq);
reclaim->generation = iter->generation;
}
- /*
- * We have finished the whole tree walk or no group has been
- * visited because filter told us to skip the root node.
- */
- if (!memcg && (prev || (cond && !last_visited)))
+ if (prev && !memcg)
goto out_unlock;
}
out_unlock:
return total;
}
-#if MAX_NUMNODES > 1
/**
* test_mem_cgroup_node_reclaimable
* @memcg: the target memcg
return false;
}
+#if MAX_NUMNODES > 1
/*
* Always updating the nodemask is not very good - even if we have an empty
return node;
}
+/*
+ * Check all nodes whether it contains reclaimable pages or not.
+ * For quick scan, we make use of scan_nodes. This will allow us to skip
+ * unused nodes. But scan_nodes is lazily updated and may not cotain
+ * enough new information. We need to do double check.
+ */
+static bool mem_cgroup_reclaimable(struct mem_cgroup *memcg, bool noswap)
+{
+ int nid;
+
+ /*
+ * quick check...making use of scan_node.
+ * We can skip unused nodes.
+ */
+ if (!nodes_empty(memcg->scan_nodes)) {
+ for (nid = first_node(memcg->scan_nodes);
+ nid < MAX_NUMNODES;
+ nid = next_node(nid, memcg->scan_nodes)) {
+
+ if (test_mem_cgroup_node_reclaimable(memcg, nid, noswap))
+ return true;
+ }
+ }
+ /*
+ * Check rest of nodes.
+ */
+ for_each_node_state(nid, N_MEMORY) {
+ if (node_isset(nid, memcg->scan_nodes))
+ continue;
+ if (test_mem_cgroup_node_reclaimable(memcg, nid, noswap))
+ return true;
+ }
+ return false;
+}
+
#else
int mem_cgroup_select_victim_node(struct mem_cgroup *memcg)
{
return 0;
}
-#endif
-
-/*
- * A group is eligible for the soft limit reclaim under the given root
- * hierarchy if
- * a) it is over its soft limit
- * b) any parent up the hierarchy is over its soft limit
- *
- * If the given group doesn't have any children over the limit then it
- * doesn't make any sense to iterate its subtree.
- */
-enum mem_cgroup_filter_t
-mem_cgroup_soft_reclaim_eligible(struct mem_cgroup *memcg,
- struct mem_cgroup *root)
+static bool mem_cgroup_reclaimable(struct mem_cgroup *memcg, bool noswap)
{
- struct mem_cgroup *parent;
-
- if (!memcg)
- memcg = root_mem_cgroup;
- parent = memcg;
-
- if (res_counter_soft_limit_excess(&memcg->res))
- return VISIT;
+ return test_mem_cgroup_node_reclaimable(memcg, 0, noswap);
+}
+#endif
- /*
- * If any parent up to the root in the hierarchy is over its soft limit
- * then we have to obey and reclaim from this group as well.
- */
- while ((parent = parent_mem_cgroup(parent))) {
- if (res_counter_soft_limit_excess(&parent->res))
- return VISIT;
- if (parent == root)
+static int mem_cgroup_soft_reclaim(struct mem_cgroup *root_memcg,
+ struct zone *zone,
+ gfp_t gfp_mask,
+ unsigned long *total_scanned)
+{
+ struct mem_cgroup *victim = NULL;
+ int total = 0;
+ int loop = 0;
+ unsigned long excess;
+ unsigned long nr_scanned;
+ struct mem_cgroup_reclaim_cookie reclaim = {
+ .zone = zone,
+ .priority = 0,
+ };
+
+ excess = res_counter_soft_limit_excess(&root_memcg->res) >> PAGE_SHIFT;
+
+ while (1) {
+ victim = mem_cgroup_iter(root_memcg, victim, &reclaim);
+ if (!victim) {
+ loop++;
+ if (loop >= 2) {
+ /*
+ * If we have not been able to reclaim
+ * anything, it might because there are
+ * no reclaimable pages under this hierarchy
+ */
+ if (!total)
+ break;
+ /*
+ * We want to do more targeted reclaim.
+ * excess >> 2 is not to excessive so as to
+ * reclaim too much, nor too less that we keep
+ * coming back to reclaim from this cgroup
+ */
+ if (total >= (excess >> 2) ||
+ (loop > MEM_CGROUP_MAX_RECLAIM_LOOPS))
+ break;
+ }
+ continue;
+ }
+ if (!mem_cgroup_reclaimable(victim, false))
+ continue;
+ total += mem_cgroup_shrink_node_zone(victim, gfp_mask, false,
+ zone, &nr_scanned);
+ *total_scanned += nr_scanned;
+ if (!res_counter_soft_limit_excess(&root_memcg->res))
break;
}
-
- if (!atomic_read(&memcg->children_in_excess))
- return SKIP_TREE;
- return SKIP;
+ mem_cgroup_iter_break(root_memcg, victim);
+ return total;
}
static DEFINE_SPINLOCK(memcg_oom_lock);
memcg_wakeup_oom(memcg);
}
-/*
- * try to call OOM killer
- */
static void mem_cgroup_oom(struct mem_cgroup *memcg, gfp_t mask, int order)
{
- bool locked;
- int wakeups;
-
if (!current->memcg_oom.may_oom)
return;
-
- current->memcg_oom.in_memcg_oom = 1;
-
/*
- * As with any blocking lock, a contender needs to start
- * listening for wakeups before attempting the trylock,
- * otherwise it can miss the wakeup from the unlock and sleep
- * indefinitely. This is just open-coded because our locking
- * is so particular to memcg hierarchies.
+ * We are in the middle of the charge context here, so we
+ * don't want to block when potentially sitting on a callstack
+ * that holds all kinds of filesystem and mm locks.
+ *
+ * Also, the caller may handle a failed allocation gracefully
+ * (like optional page cache readahead) and so an OOM killer
+ * invocation might not even be necessary.
+ *
+ * That's why we don't do anything here except remember the
+ * OOM context and then deal with it at the end of the page
+ * fault when the stack is unwound, the locks are released,
+ * and when we know whether the fault was overall successful.
*/
- wakeups = atomic_read(&memcg->oom_wakeups);
- mem_cgroup_mark_under_oom(memcg);
-
- locked = mem_cgroup_oom_trylock(memcg);
-
- if (locked)
- mem_cgroup_oom_notify(memcg);
-
- if (locked && !memcg->oom_kill_disable) {
- mem_cgroup_unmark_under_oom(memcg);
- mem_cgroup_out_of_memory(memcg, mask, order);
- mem_cgroup_oom_unlock(memcg);
- /*
- * There is no guarantee that an OOM-lock contender
- * sees the wakeups triggered by the OOM kill
- * uncharges. Wake any sleepers explicitely.
- */
- memcg_oom_recover(memcg);
- } else {
- /*
- * A system call can just return -ENOMEM, but if this
- * is a page fault and somebody else is handling the
- * OOM already, we need to sleep on the OOM waitqueue
- * for this memcg until the situation is resolved.
- * Which can take some time because it might be
- * handled by a userspace task.
- *
- * However, this is the charge context, which means
- * that we may sit on a large call stack and hold
- * various filesystem locks, the mmap_sem etc. and we
- * don't want the OOM handler to deadlock on them
- * while we sit here and wait. Store the current OOM
- * context in the task_struct, then return -ENOMEM.
- * At the end of the page fault handler, with the
- * stack unwound, pagefault_out_of_memory() will check
- * back with us by calling
- * mem_cgroup_oom_synchronize(), possibly putting the
- * task to sleep.
- */
- current->memcg_oom.oom_locked = locked;
- current->memcg_oom.wakeups = wakeups;
- css_get(&memcg->css);
- current->memcg_oom.wait_on_memcg = memcg;
- }
+ css_get(&memcg->css);
+ current->memcg_oom.memcg = memcg;
+ current->memcg_oom.gfp_mask = mask;
+ current->memcg_oom.order = order;
}
/**
* mem_cgroup_oom_synchronize - complete memcg OOM handling
+ * @handle: actually kill/wait or just clean up the OOM state
*
- * This has to be called at the end of a page fault if the the memcg
- * OOM handler was enabled and the fault is returning %VM_FAULT_OOM.
+ * This has to be called at the end of a page fault if the memcg OOM
+ * handler was enabled.
*
- * Memcg supports userspace OOM handling, so failed allocations must
+ * Memcg supports userspace OOM handling where failed allocations must
* sleep on a waitqueue until the userspace task resolves the
* situation. Sleeping directly in the charge context with all kinds
* of locks held is not a good idea, instead we remember an OOM state
* in the task and mem_cgroup_oom_synchronize() has to be called at
- * the end of the page fault to put the task to sleep and clean up the
- * OOM state.
+ * the end of the page fault to complete the OOM handling.
*
* Returns %true if an ongoing memcg OOM situation was detected and
- * finalized, %false otherwise.
+ * completed, %false otherwise.
*/
-bool mem_cgroup_oom_synchronize(void)
+bool mem_cgroup_oom_synchronize(bool handle)
{
+ struct mem_cgroup *memcg = current->memcg_oom.memcg;
struct oom_wait_info owait;
- struct mem_cgroup *memcg;
+ bool locked;
/* OOM is global, do not handle */
- if (!current->memcg_oom.in_memcg_oom)
- return false;
-
- /*
- * We invoked the OOM killer but there is a chance that a kill
- * did not free up any charges. Everybody else might already
- * be sleeping, so restart the fault and keep the rampage
- * going until some charges are released.
- */
- memcg = current->memcg_oom.wait_on_memcg;
if (!memcg)
- goto out;
+ return false;
- if (test_thread_flag(TIF_MEMDIE) || fatal_signal_pending(current))
- goto out_memcg;
+ if (!handle)
+ goto cleanup;
owait.memcg = memcg;
owait.wait.flags = 0;
INIT_LIST_HEAD(&owait.wait.task_list);
prepare_to_wait(&memcg_oom_waitq, &owait.wait, TASK_KILLABLE);
- /* Only sleep if we didn't miss any wakeups since OOM */
- if (atomic_read(&memcg->oom_wakeups) == current->memcg_oom.wakeups)
+ mem_cgroup_mark_under_oom(memcg);
+
+ locked = mem_cgroup_oom_trylock(memcg);
+
+ if (locked)
+ mem_cgroup_oom_notify(memcg);
+
+ if (locked && !memcg->oom_kill_disable) {
+ mem_cgroup_unmark_under_oom(memcg);
+ finish_wait(&memcg_oom_waitq, &owait.wait);
+ mem_cgroup_out_of_memory(memcg, current->memcg_oom.gfp_mask,
+ current->memcg_oom.order);
+ } else {
schedule();
- finish_wait(&memcg_oom_waitq, &owait.wait);
-out_memcg:
- mem_cgroup_unmark_under_oom(memcg);
- if (current->memcg_oom.oom_locked) {
+ mem_cgroup_unmark_under_oom(memcg);
+ finish_wait(&memcg_oom_waitq, &owait.wait);
+ }
+
+ if (locked) {
mem_cgroup_oom_unlock(memcg);
/*
* There is no guarantee that an OOM-lock contender
*/
memcg_oom_recover(memcg);
}
+cleanup:
+ current->memcg_oom.memcg = NULL;
css_put(&memcg->css);
- current->memcg_oom.wait_on_memcg = NULL;
-out:
- current->memcg_oom.in_memcg_oom = 0;
return true;
}
|| fatal_signal_pending(current)))
goto bypass;
+ if (unlikely(task_in_memcg_oom(current)))
+ goto bypass;
+
/*
* We always charge the cgroup the mm_struct belongs to.
* The mm_struct's mem_cgroup changes on task migration if the
return 0;
nomem:
*ptr = NULL;
+ if (gfp_mask & __GFP_NOFAIL)
+ return 0;
return -ENOMEM;
bypass:
*ptr = root_mem_cgroup;
unlock_page_cgroup(pc);
/*
- * "charge_statistics" updated event counter.
+ * "charge_statistics" updated event counter. Then, check it.
+ * Insert ancestor (and ancestor's ancestors), to softlimit RB-tree.
+ * if they exceeds softlimit.
*/
memcg_check_events(memcg, page);
}
return ret;
}
+unsigned long mem_cgroup_soft_limit_reclaim(struct zone *zone, int order,
+ gfp_t gfp_mask,
+ unsigned long *total_scanned)
+{
+ unsigned long nr_reclaimed = 0;
+ struct mem_cgroup_per_zone *mz, *next_mz = NULL;
+ unsigned long reclaimed;
+ int loop = 0;
+ struct mem_cgroup_tree_per_zone *mctz;
+ unsigned long long excess;
+ unsigned long nr_scanned;
+
+ if (order > 0)
+ return 0;
+
+ mctz = soft_limit_tree_node_zone(zone_to_nid(zone), zone_idx(zone));
+ /*
+ * This loop can run a while, specially if mem_cgroup's continuously
+ * keep exceeding their soft limit and putting the system under
+ * pressure
+ */
+ do {
+ if (next_mz)
+ mz = next_mz;
+ else
+ mz = mem_cgroup_largest_soft_limit_node(mctz);
+ if (!mz)
+ break;
+
+ nr_scanned = 0;
+ reclaimed = mem_cgroup_soft_reclaim(mz->memcg, zone,
+ gfp_mask, &nr_scanned);
+ nr_reclaimed += reclaimed;
+ *total_scanned += nr_scanned;
+ spin_lock(&mctz->lock);
+
+ /*
+ * If we failed to reclaim anything from this memory cgroup
+ * it is time to move on to the next cgroup
+ */
+ next_mz = NULL;
+ if (!reclaimed) {
+ do {
+ /*
+ * Loop until we find yet another one.
+ *
+ * By the time we get the soft_limit lock
+ * again, someone might have aded the
+ * group back on the RB tree. Iterate to
+ * make sure we get a different mem.
+ * mem_cgroup_largest_soft_limit_node returns
+ * NULL if no other cgroup is present on
+ * the tree
+ */
+ next_mz =
+ __mem_cgroup_largest_soft_limit_node(mctz);
+ if (next_mz == mz)
+ css_put(&next_mz->memcg->css);
+ else /* next_mz == NULL or other memcg */
+ break;
+ } while (1);
+ }
+ __mem_cgroup_remove_exceeded(mz->memcg, mz, mctz);
+ excess = res_counter_soft_limit_excess(&mz->memcg->res);
+ /*
+ * One school of thought says that we should not add
+ * back the node to the tree if reclaim returns 0.
+ * But our reclaim could return 0, simply because due
+ * to priority we are exposing a smaller subset of
+ * memory to reclaim from. Consider this as a longer
+ * term TODO.
+ */
+ /* If excess == 0, no tree ops */
+ __mem_cgroup_insert_exceeded(mz->memcg, mz, mctz, excess);
+ spin_unlock(&mctz->lock);
+ css_put(&mz->memcg->css);
+ loop++;
+ /*
+ * Could not reclaim anything and there are no more
+ * mem cgroups to try or we seem to be looping without
+ * reclaiming anything.
+ */
+ if (!nr_reclaimed &&
+ (next_mz == NULL ||
+ loop > MEM_CGROUP_MAX_SOFT_LIMIT_RECLAIM_LOOPS))
+ break;
+ } while (!nr_reclaimed);
+ if (next_mz)
+ css_put(&next_mz->memcg->css);
+ return nr_reclaimed;
+}
+
/**
* mem_cgroup_force_empty_list - clears LRU of a group
* @memcg: group to clear
for (zone = 0; zone < MAX_NR_ZONES; zone++) {
mz = &pn->zoneinfo[zone];
lruvec_init(&mz->lruvec);
+ mz->usage_in_excess = 0;
+ mz->on_tree = false;
mz->memcg = memcg;
}
memcg->nodeinfo[node] = pn;
int node;
size_t size = memcg_size();
+ mem_cgroup_remove_from_trees(memcg);
free_css_id(&mem_cgroup_subsys, &memcg->css);
for_each_node(node)
}
EXPORT_SYMBOL(parent_mem_cgroup);
+static void __init mem_cgroup_soft_limit_tree_init(void)
+{
+ struct mem_cgroup_tree_per_node *rtpn;
+ struct mem_cgroup_tree_per_zone *rtpz;
+ int tmp, node, zone;
+
+ for_each_node(node) {
+ tmp = node;
+ if (!node_state(node, N_NORMAL_MEMORY))
+ tmp = -1;
+ rtpn = kzalloc_node(sizeof(*rtpn), GFP_KERNEL, tmp);
+ BUG_ON(!rtpn);
+
+ soft_limit_tree.rb_tree_per_node[node] = rtpn;
+
+ for (zone = 0; zone < MAX_NR_ZONES; zone++) {
+ rtpz = &rtpn->rb_tree_per_zone[zone];
+ rtpz->rb_root = RB_ROOT;
+ spin_lock_init(&rtpz->lock);
+ }
+ }
+}
+
static struct cgroup_subsys_state * __ref
mem_cgroup_css_alloc(struct cgroup_subsys_state *parent_css)
{
mutex_init(&memcg->thresholds_lock);
spin_lock_init(&memcg->move_lock);
vmpressure_init(&memcg->vmpressure);
- spin_lock_init(&memcg->soft_lock);
return &memcg->css;
mem_cgroup_invalidate_reclaim_iterators(memcg);
mem_cgroup_reparent_charges(memcg);
- if (memcg->soft_contributed) {
- while ((memcg = parent_mem_cgroup(memcg)))
- atomic_dec(&memcg->children_in_excess);
-
- if (memcg != root_mem_cgroup && !root_mem_cgroup->use_hierarchy)
- atomic_dec(&root_mem_cgroup->children_in_excess);
- }
mem_cgroup_destroy_all_caches(memcg);
vmpressure_cleanup(&memcg->vmpressure);
}
{
hotcpu_notifier(memcg_cpu_hotplug_callback, 0);
enable_swap_cgroup();
+ mem_cgroup_soft_limit_tree_init();
memcg_stock_init();
return 0;
}
* shake_page could have turned it free.
*/
if (is_free_buddy_page(p)) {
- action_result(pfn, "free buddy, 2nd try",
- DELAYED);
+ if (flags & MF_COUNT_INCREASED)
+ action_result(pfn, "free buddy", DELAYED);
+ else
+ action_result(pfn, "free buddy, 2nd try", DELAYED);
return 0;
}
action_result(pfn, "non LRU", IGNORED);
* worked by memory_failure() and the page lock is not held yet.
* In such case, we yield to memory_failure() and make unpoison fail.
*/
- if (PageTransHuge(page)) {
+ if (!PageHuge(page) && PageTransHuge(page)) {
pr_info("MCE: Memory failure is now running on %#lx\n", pfn);
return 0;
}
*/
make_migration_entry_read(&entry);
pte = swp_entry_to_pte(entry);
+ if (pte_swp_soft_dirty(*src_pte))
+ pte = pte_swp_mksoft_dirty(pte);
set_pte_at(src_mm, addr, src_pte, pte);
}
}
* space. Kernel faults are handled more gracefully.
*/
if (flags & FAULT_FLAG_USER)
- mem_cgroup_enable_oom();
+ mem_cgroup_oom_enable();
ret = __handle_mm_fault(mm, vma, address, flags);
- if (flags & FAULT_FLAG_USER)
- mem_cgroup_disable_oom();
-
- if (WARN_ON(task_in_memcg_oom(current) && !(ret & VM_FAULT_OOM)))
- mem_cgroup_oom_synchronize();
+ if (flags & FAULT_FLAG_USER) {
+ mem_cgroup_oom_disable();
+ /*
+ * The task may have entered a memcg OOM situation but
+ * if the allocation error was handled gracefully (no
+ * VM_FAULT_OOM), there is no need to kill anything.
+ * Just clean up the OOM state peacefully.
+ */
+ if (task_in_memcg_oom(current) && !(ret & VM_FAULT_OOM))
+ mem_cgroup_oom_synchronize(false);
+ }
return ret;
}
list_del(&page->lru);
dec_zone_page_state(page, NR_ISOLATED_ANON +
page_is_file_cache(page));
- if (unlikely(balloon_page_movable(page)))
+ if (unlikely(isolated_balloon_page(page)))
balloon_page_putback(page);
else
putback_lru_page(page);
get_page(new);
pte = pte_mkold(mk_pte(new, vma->vm_page_prot));
+ if (pte_swp_soft_dirty(*ptep))
+ pte = pte_mksoft_dirty(pte);
if (is_write_migration_entry(entry))
pte = pte_mkwrite(pte);
#ifdef CONFIG_HUGETLB_PAGE
/*
* Initialize pte walk starting at the already pinned page where we
- * are sure that there is a pte.
+ * are sure that there is a pte, as it was pinned under the same
+ * mmap_sem write op.
*/
pte = get_locked_pte(vma->vm_mm, start, &ptl);
- end = min(end, pmd_addr_end(start, end));
+ /* Make sure we do not cross the page table boundary */
+ end = pgd_addr_end(start, end);
+ end = pud_addr_end(start, end);
+ end = pmd_addr_end(start, end);
/* The page next to the pinned page is the first we will try to get */
start += PAGE_SIZE;
/* Ignore errors */
mlock_fixup(vma, &prev, vma->vm_start, vma->vm_end, newflags);
+ cond_resched();
}
out:
return 0;
swp_entry_t entry = pte_to_swp_entry(oldpte);
if (is_write_migration_entry(entry)) {
+ pte_t newpte;
/*
* A protection check is difficult so
* just be safe and disable write
*/
make_migration_entry_read(&entry);
- set_pte_at(mm, addr, pte,
- swp_entry_to_pte(entry));
+ newpte = swp_entry_to_pte(entry);
+ if (pte_swp_soft_dirty(oldpte))
+ newpte = pte_swp_mksoft_dirty(newpte);
+ set_pte_at(mm, addr, pte, newpte);
}
pages++;
}
#include <asm/uaccess.h>
#include <asm/cacheflush.h>
#include <asm/tlbflush.h>
-#include <asm/pgalloc.h>
#include "internal.h"
return NULL;
pmd = pmd_alloc(mm, pud, addr);
- if (!pmd) {
- pud_free(mm, pud);
+ if (!pmd)
return NULL;
- }
VM_BUG_ON(pmd_trans_huge(*pmd));
{
struct zonelist *zonelist;
- if (mem_cgroup_oom_synchronize())
+ if (mem_cgroup_oom_synchronize(true))
return;
zonelist = node_zonelist(first_online_node, GFP_KERNEL);
return 1;
}
-static long bdi_max_pause(struct backing_dev_info *bdi,
- unsigned long bdi_dirty)
+static unsigned long bdi_max_pause(struct backing_dev_info *bdi,
+ unsigned long bdi_dirty)
{
- long bw = bdi->avg_write_bandwidth;
- long t;
+ unsigned long bw = bdi->avg_write_bandwidth;
+ unsigned long t;
/*
* Limit pause time for small memory systems. If sleeping for too long
t = bdi_dirty / (1 + bw / roundup_pow_of_two(1 + HZ / 8));
t++;
- return min_t(long, t, MAX_PAUSE);
+ return min_t(unsigned long, t, MAX_PAUSE);
}
static long bdi_min_pause(struct backing_dev_info *bdi,
list_del(&page->lru);
rmv_page_order(page);
zone->free_area[order].nr_free--;
-#ifdef CONFIG_HIGHMEM
- if (PageHighMem(page))
- totalhigh_pages -= 1 << order;
-#endif
for (i = 0; i < (1 << order); i++)
SetPageReserved((page+i));
pfn += (1 << order);
continue;
}
+#if !defined(CONFIG_SLUB) || !defined(CONFIG_SLUB_DEBUG_ON)
/*
* For simplicity, we won't check this in the list of memcg
* caches. We have control over memcg naming, and if there
s = NULL;
return -EINVAL;
}
+#endif
}
WARN_ON(strchr(name, ' ')); /* It confuses parsers */
struct filename *pathname;
int i, type, prev;
int err;
+ unsigned int old_block_size;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
}
swap_file = p->swap_file;
+ old_block_size = p->old_block_size;
p->swap_file = NULL;
p->max = 0;
swap_map = p->swap_map;
inode = mapping->host;
if (S_ISBLK(inode->i_mode)) {
struct block_device *bdev = I_BDEV(inode);
- set_blocksize(bdev, p->old_block_size);
+ set_blocksize(bdev, old_block_size);
blkdev_put(bdev, FMODE_READ | FMODE_WRITE | FMODE_EXCL);
} else {
mutex_lock(&inode->i_mutex);
#include <asm/div64.h>
#include <linux/swapops.h>
+#include <linux/balloon_compaction.h>
#include "internal.h"
{
return !sc->target_mem_cgroup;
}
-
-static bool mem_cgroup_should_soft_reclaim(struct scan_control *sc)
-{
- struct mem_cgroup *root = sc->target_mem_cgroup;
- return !mem_cgroup_disabled() &&
- mem_cgroup_soft_reclaim_eligible(root, root) != SKIP_TREE;
-}
#else
static bool global_reclaim(struct scan_control *sc)
{
return true;
}
-
-static bool mem_cgroup_should_soft_reclaim(struct scan_control *sc)
-{
- return false;
-}
#endif
unsigned long zone_reclaimable_pages(struct zone *zone)
down_write(&shrinker_rwsem);
list_del(&shrinker->list);
up_write(&shrinker_rwsem);
+ kfree(shrinker->nr_deferred);
}
EXPORT_SYMBOL(unregister_shrinker);
LIST_HEAD(clean_pages);
list_for_each_entry_safe(page, next, page_list, lru) {
- if (page_is_file_cache(page) && !PageDirty(page)) {
+ if (page_is_file_cache(page) && !PageDirty(page) &&
+ !isolated_balloon_page(page)) {
ClearPageActive(page);
list_move(&page->lru, &clean_pages);
}
}
}
-static int
-__shrink_zone(struct zone *zone, struct scan_control *sc, bool soft_reclaim)
+static void shrink_zone(struct zone *zone, struct scan_control *sc)
{
unsigned long nr_reclaimed, nr_scanned;
- int groups_scanned = 0;
do {
struct mem_cgroup *root = sc->target_mem_cgroup;
.zone = zone,
.priority = sc->priority,
};
- struct mem_cgroup *memcg = NULL;
- mem_cgroup_iter_filter filter = (soft_reclaim) ?
- mem_cgroup_soft_reclaim_eligible : NULL;
+ struct mem_cgroup *memcg;
nr_reclaimed = sc->nr_reclaimed;
nr_scanned = sc->nr_scanned;
- while ((memcg = mem_cgroup_iter_cond(root, memcg, &reclaim, filter))) {
+ memcg = mem_cgroup_iter(root, NULL, &reclaim);
+ do {
struct lruvec *lruvec;
- groups_scanned++;
lruvec = mem_cgroup_zone_lruvec(zone, memcg);
shrink_lruvec(lruvec, sc);
mem_cgroup_iter_break(root, memcg);
break;
}
- }
+ memcg = mem_cgroup_iter(root, memcg, &reclaim);
+ } while (memcg);
vmpressure(sc->gfp_mask, sc->target_mem_cgroup,
sc->nr_scanned - nr_scanned,
} while (should_continue_reclaim(zone, sc->nr_reclaimed - nr_reclaimed,
sc->nr_scanned - nr_scanned, sc));
-
- return groups_scanned;
-}
-
-
-static void shrink_zone(struct zone *zone, struct scan_control *sc)
-{
- bool do_soft_reclaim = mem_cgroup_should_soft_reclaim(sc);
- unsigned long nr_scanned = sc->nr_scanned;
- int scanned_groups;
-
- scanned_groups = __shrink_zone(zone, sc, do_soft_reclaim);
- /*
- * memcg iterator might race with other reclaimer or start from
- * a incomplete tree walk so the tree walk in __shrink_zone
- * might have missed groups that are above the soft limit. Try
- * another loop to catch up with others. Do it just once to
- * prevent from reclaim latencies when other reclaimers always
- * preempt this one.
- */
- if (do_soft_reclaim && !scanned_groups)
- __shrink_zone(zone, sc, do_soft_reclaim);
-
- /*
- * No group is over the soft limit or those that are do not have
- * pages in the zone we are reclaiming so we have to reclaim everybody
- */
- if (do_soft_reclaim && (sc->nr_scanned == nr_scanned)) {
- __shrink_zone(zone, sc, false);
- return;
- }
}
/* Returns true if compaction should go ahead for a high-order request */
{
struct zoneref *z;
struct zone *zone;
+ unsigned long nr_soft_reclaimed;
+ unsigned long nr_soft_scanned;
bool aborted_reclaim = false;
/*
continue;
}
}
+ /*
+ * This steals pages from memory cgroups over softlimit
+ * and returns the number of reclaimed pages and
+ * scanned pages. This works for global memory pressure
+ * and balancing, not for a memcg's limit.
+ */
+ nr_soft_scanned = 0;
+ nr_soft_reclaimed = mem_cgroup_soft_limit_reclaim(zone,
+ sc->order, sc->gfp_mask,
+ &nr_soft_scanned);
+ sc->nr_reclaimed += nr_soft_reclaimed;
+ sc->nr_scanned += nr_soft_scanned;
/* need some check for avoid more shrink_zone() */
}
{
int i;
int end_zone = 0; /* Inclusive. 0 = ZONE_DMA */
+ unsigned long nr_soft_reclaimed;
+ unsigned long nr_soft_scanned;
struct scan_control sc = {
.gfp_mask = GFP_KERNEL,
.priority = DEF_PRIORITY,
sc.nr_scanned = 0;
+ nr_soft_scanned = 0;
+ /*
+ * Call soft limit reclaim before calling shrink_zone.
+ */
+ nr_soft_reclaimed = mem_cgroup_soft_limit_reclaim(zone,
+ order, sc.gfp_mask,
+ &nr_soft_scanned);
+ sc.nr_reclaimed += nr_soft_reclaimed;
+
/*
* There should be no need to raise the scanning
* priority if enough pages are already being scanned
}
tree->rbroot = RB_ROOT;
spin_unlock(&tree->lock);
+
+ zbud_destroy_pool(tree->pool);
+ kfree(tree);
+ zswap_trees[type] = NULL;
}
static struct zbud_ops zswap_zbud_ops = {
static unsigned int mrp_join_time __read_mostly = 200;
module_param(mrp_join_time, uint, 0644);
MODULE_PARM_DESC(mrp_join_time, "Join time in ms (default 200ms)");
+
+static unsigned int mrp_periodic_time __read_mostly = 1000;
+module_param(mrp_periodic_time, uint, 0644);
+MODULE_PARM_DESC(mrp_periodic_time, "Periodic time in ms (default 1s)");
+
MODULE_LICENSE("GPL");
static const u8
mrp_join_timer_arm(app);
}
+static void mrp_periodic_timer_arm(struct mrp_applicant *app)
+{
+ mod_timer(&app->periodic_timer,
+ jiffies + msecs_to_jiffies(mrp_periodic_time));
+}
+
+static void mrp_periodic_timer(unsigned long data)
+{
+ struct mrp_applicant *app = (struct mrp_applicant *)data;
+
+ spin_lock(&app->lock);
+ mrp_mad_event(app, MRP_EVENT_PERIODIC);
+ mrp_pdu_queue(app);
+ spin_unlock(&app->lock);
+
+ mrp_periodic_timer_arm(app);
+}
+
static int mrp_pdu_parse_end_mark(struct sk_buff *skb, int *offset)
{
__be16 endmark;
rcu_assign_pointer(dev->mrp_port->applicants[appl->type], app);
setup_timer(&app->join_timer, mrp_join_timer, (unsigned long)app);
mrp_join_timer_arm(app);
+ setup_timer(&app->periodic_timer, mrp_periodic_timer,
+ (unsigned long)app);
+ mrp_periodic_timer_arm(app);
return 0;
err3:
* all pending messages before the applicant is gone.
*/
del_timer_sync(&app->join_timer);
+ del_timer_sync(&app->periodic_timer);
spin_lock_bh(&app->lock);
mrp_mad_event(app, MRP_EVENT_TX);
return nla_total_size(2) + /* IFLA_VLAN_PROTOCOL */
nla_total_size(2) + /* IFLA_VLAN_ID */
- sizeof(struct ifla_vlan_flags) + /* IFLA_VLAN_FLAGS */
+ nla_total_size(sizeof(struct ifla_vlan_flags)) + /* IFLA_VLAN_FLAGS */
vlan_qos_map_size(vlan->nr_ingress_mappings) +
vlan_qos_map_size(vlan->nr_egress_mappings);
}
batadv_recv_handler_init();
batadv_iv_init();
+ batadv_nc_init();
batadv_event_workqueue = create_singlethread_workqueue("bat_events");
if (ret < 0)
goto err;
- ret = batadv_nc_init(bat_priv);
+ ret = batadv_nc_mesh_init(bat_priv);
if (ret < 0)
goto err;
batadv_vis_quit(bat_priv);
batadv_gw_node_purge(bat_priv);
- batadv_nc_free(bat_priv);
+ batadv_nc_mesh_free(bat_priv);
batadv_dat_free(bat_priv);
batadv_bla_free(bat_priv);
static int batadv_nc_recv_coded_packet(struct sk_buff *skb,
struct batadv_hard_iface *recv_if);
+/**
+ * batadv_nc_init - one-time initialization for network coding
+ */
+int __init batadv_nc_init(void)
+{
+ int ret;
+
+ /* Register our packet type */
+ ret = batadv_recv_handler_register(BATADV_CODED,
+ batadv_nc_recv_coded_packet);
+
+ return ret;
+}
+
/**
* batadv_nc_start_timer - initialise the nc periodic worker
* @bat_priv: the bat priv with all the soft interface information
}
/**
- * batadv_nc_init - initialise coding hash table and start house keeping
+ * batadv_nc_mesh_init - initialise coding hash table and start house keeping
* @bat_priv: the bat priv with all the soft interface information
*/
-int batadv_nc_init(struct batadv_priv *bat_priv)
+int batadv_nc_mesh_init(struct batadv_priv *bat_priv)
{
bat_priv->nc.timestamp_fwd_flush = jiffies;
bat_priv->nc.timestamp_sniffed_purge = jiffies;
batadv_hash_set_lock_class(bat_priv->nc.coding_hash,
&batadv_nc_decoding_hash_lock_class_key);
- /* Register our packet type */
- if (batadv_recv_handler_register(BATADV_CODED,
- batadv_nc_recv_coded_packet) < 0)
- goto err;
-
INIT_DELAYED_WORK(&bat_priv->nc.work, batadv_nc_worker);
batadv_nc_start_timer(bat_priv);
}
/**
- * batadv_nc_free - clean up network coding memory
+ * batadv_nc_mesh_free - clean up network coding memory
* @bat_priv: the bat priv with all the soft interface information
*/
-void batadv_nc_free(struct batadv_priv *bat_priv)
+void batadv_nc_mesh_free(struct batadv_priv *bat_priv)
{
- batadv_recv_handler_unregister(BATADV_CODED);
cancel_delayed_work_sync(&bat_priv->nc.work);
batadv_nc_purge_paths(bat_priv, bat_priv->nc.coding_hash, NULL);
#ifdef CONFIG_BATMAN_ADV_NC
-int batadv_nc_init(struct batadv_priv *bat_priv);
-void batadv_nc_free(struct batadv_priv *bat_priv);
+int batadv_nc_init(void);
+int batadv_nc_mesh_init(struct batadv_priv *bat_priv);
+void batadv_nc_mesh_free(struct batadv_priv *bat_priv);
void batadv_nc_update_nc_node(struct batadv_priv *bat_priv,
struct batadv_orig_node *orig_node,
struct batadv_orig_node *orig_neigh_node,
#else /* ifdef CONFIG_BATMAN_ADV_NC */
-static inline int batadv_nc_init(struct batadv_priv *bat_priv)
+static inline int batadv_nc_init(void)
{
return 0;
}
-static inline void batadv_nc_free(struct batadv_priv *bat_priv)
+static inline int batadv_nc_mesh_init(struct batadv_priv *bat_priv)
+{
+ return 0;
+}
+
+static inline void batadv_nc_mesh_free(struct batadv_priv *bat_priv)
{
return;
}
goto done;
}
- if (hdev->rfkill && rfkill_blocked(hdev->rfkill)) {
+ /* Check for rfkill but allow the HCI setup stage to proceed
+ * (which in itself doesn't cause any RF activity).
+ */
+ if (test_bit(HCI_RFKILLED, &hdev->dev_flags) &&
+ !test_bit(HCI_SETUP, &hdev->dev_flags)) {
ret = -ERFKILL;
goto done;
}
BT_DBG("%p name %s blocked %d", hdev, hdev->name, blocked);
- if (!blocked)
- return 0;
-
- hci_dev_do_close(hdev);
+ if (blocked) {
+ set_bit(HCI_RFKILLED, &hdev->dev_flags);
+ if (!test_bit(HCI_SETUP, &hdev->dev_flags))
+ hci_dev_do_close(hdev);
+ } else {
+ clear_bit(HCI_RFKILLED, &hdev->dev_flags);
+ }
return 0;
}
return;
}
- if (test_bit(HCI_AUTO_OFF, &hdev->dev_flags))
+ if (test_bit(HCI_RFKILLED, &hdev->dev_flags)) {
+ clear_bit(HCI_AUTO_OFF, &hdev->dev_flags);
+ hci_dev_do_close(hdev);
+ } else if (test_bit(HCI_AUTO_OFF, &hdev->dev_flags)) {
queue_delayed_work(hdev->req_workqueue, &hdev->power_off,
HCI_AUTO_OFF_TIMEOUT);
+ }
if (test_and_clear_bit(HCI_SETUP, &hdev->dev_flags))
mgmt_index_added(hdev);
}
}
+ if (hdev->rfkill && rfkill_blocked(hdev->rfkill))
+ set_bit(HCI_RFKILLED, &hdev->dev_flags);
+
set_bit(HCI_SETUP, &hdev->dev_flags);
if (hdev->dev_type != HCI_AMP)
cp.handle = cpu_to_le16(conn->handle);
if (ltk->authenticated)
- conn->sec_level = BT_SECURITY_HIGH;
+ conn->pending_sec_level = BT_SECURITY_HIGH;
+ else
+ conn->pending_sec_level = BT_SECURITY_MEDIUM;
+
+ conn->enc_key_size = ltk->enc_size;
hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp);
sk = chan->sk;
+ /* For certain devices (ex: HID mouse), support for authentication,
+ * pairing and bonding is optional. For such devices, inorder to avoid
+ * the ACL alive for too long after L2CAP disconnection, reset the ACL
+ * disc_timeout back to HCI_DISCONN_TIMEOUT during L2CAP connect.
+ */
+ conn->hcon->disc_timeout = HCI_DISCONN_TIMEOUT;
+
bacpy(&bt_sk(sk)->src, conn->src);
bacpy(&bt_sk(sk)->dst, conn->dst);
chan->psm = psm;
static void rfcomm_dev_state_change(struct rfcomm_dlc *dlc, int err)
{
struct rfcomm_dev *dev = dlc->owner;
- struct tty_struct *tty;
if (!dev)
return;
DPM_ORDER_DEV_AFTER_PARENT);
wake_up_interruptible(&dev->port.open_wait);
- } else if (dlc->state == BT_CLOSED) {
- tty = tty_port_tty_get(&dev->port);
- if (!tty) {
- if (test_bit(RFCOMM_RELEASE_ONHUP, &dev->flags)) {
- /* Drop DLC lock here to avoid deadlock
- * 1. rfcomm_dev_get will take rfcomm_dev_lock
- * but in rfcomm_dev_add there's lock order:
- * rfcomm_dev_lock -> dlc lock
- * 2. tty_port_put will deadlock if it's
- * the last reference
- *
- * FIXME: when we release the lock anything
- * could happen to dev, even its destruction
- */
- rfcomm_dlc_unlock(dlc);
- if (rfcomm_dev_get(dev->id) == NULL) {
- rfcomm_dlc_lock(dlc);
- return;
- }
-
- if (!test_and_set_bit(RFCOMM_TTY_RELEASED,
- &dev->flags))
- tty_port_put(&dev->port);
-
- tty_port_put(&dev->port);
- rfcomm_dlc_lock(dlc);
- }
- } else {
- tty_hangup(tty);
- tty_kref_put(tty);
- }
- }
+ } else if (dlc->state == BT_CLOSED)
+ tty_port_tty_hangup(&dev->port, false);
}
static void rfcomm_dev_modem_status(struct rfcomm_dlc *dlc, u8 v24_sig)
vid = nla_get_u16(tb[NDA_VLAN]);
- if (vid >= VLAN_N_VID) {
+ if (!vid || vid >= VLAN_VID_MASK) {
pr_info("bridge: RTM_NEWNEIGH with invalid vlan id %d\n",
vid);
return -EINVAL;
vid = nla_get_u16(tb[NDA_VLAN]);
- if (vid >= VLAN_N_VID) {
+ if (!vid || vid >= VLAN_VID_MASK) {
pr_info("bridge: RTM_NEWNEIGH with invalid vlan id %d\n",
vid);
return -EINVAL;
call_rcu_bh(&p->rcu, br_multicast_free_pg);
err = 0;
- if (!mp->ports && !mp->mglist && mp->timer_armed &&
+ if (!mp->ports && !mp->mglist &&
netif_running(br->dev))
mod_timer(&mp->timer, jiffies);
break;
del_timer(&p->timer);
call_rcu_bh(&p->rcu, br_multicast_free_pg);
- if (!mp->ports && !mp->mglist && mp->timer_armed &&
+ if (!mp->ports && !mp->mglist &&
netif_running(br->dev))
mod_timer(&mp->timer, jiffies);
mp->br = br;
mp->addr = *group;
-
setup_timer(&mp->timer, br_multicast_group_expired,
(unsigned long)mp);
struct net_bridge_mdb_entry *mp;
struct net_bridge_port_group *p;
struct net_bridge_port_group __rcu **pp;
+ unsigned long now = jiffies;
int err;
spin_lock(&br->multicast_lock);
if (!port) {
mp->mglist = true;
+ mod_timer(&mp->timer, now + br->multicast_membership_interval);
goto out;
}
(p = mlock_dereference(*pp, br)) != NULL;
pp = &p->next) {
if (p->port == port)
- goto out;
+ goto found;
if ((unsigned long)p->port < (unsigned long)port)
break;
}
rcu_assign_pointer(*pp, p);
br_mdb_notify(br->dev, port, group, RTM_NEWMDB);
+found:
+ mod_timer(&p->timer, now + br->multicast_membership_interval);
out:
err = 0;
if (!mp)
goto out;
- mod_timer(&mp->timer, now + br->multicast_membership_interval);
- mp->timer_armed = true;
-
max_delay *= br->multicast_last_member_count;
if (mp->mglist &&
if (!mp)
goto out;
- mod_timer(&mp->timer, now + br->multicast_membership_interval);
- mp->timer_armed = true;
-
max_delay *= br->multicast_last_member_count;
if (mp->mglist &&
(timer_pending(&mp->timer) ?
call_rcu_bh(&p->rcu, br_multicast_free_pg);
br_mdb_notify(br->dev, port, group, RTM_DELMDB);
- if (!mp->ports && !mp->mglist && mp->timer_armed &&
+ if (!mp->ports && !mp->mglist &&
netif_running(br->dev))
mod_timer(&mp->timer, jiffies);
}
br->multicast_last_member_interval;
if (!port) {
- if (mp->mglist && mp->timer_armed &&
+ if (mp->mglist &&
(timer_pending(&mp->timer) ?
time_after(mp->timer.expires, time) :
try_to_del_timer_sync(&mp->timer) >= 0)) {
mod_timer(&mp->timer, time);
}
+
+ goto out;
+ }
+
+ for (p = mlock_dereference(mp->ports, br);
+ p != NULL;
+ p = mlock_dereference(p->next, br)) {
+ if (p->port != port)
+ continue;
+
+ if (!hlist_unhashed(&p->mglist) &&
+ (timer_pending(&p->timer) ?
+ time_after(p->timer.expires, time) :
+ try_to_del_timer_sync(&p->timer) >= 0)) {
+ mod_timer(&p->timer, time);
+ }
+
+ break;
}
out:
spin_unlock(&br->multicast_lock);
hlist_for_each_entry_safe(mp, n, &mdb->mhash[i],
hlist[ver]) {
del_timer(&mp->timer);
- mp->timer_armed = false;
call_rcu_bh(&mp->rcu, br_multicast_free_group);
}
}
vinfo = nla_data(tb[IFLA_BRIDGE_VLAN_INFO]);
- if (vinfo->vid >= VLAN_N_VID)
+ if (!vinfo->vid || vinfo->vid >= VLAN_VID_MASK)
return -EINVAL;
switch (cmd) {
struct timer_list timer;
struct br_ip addr;
bool mglist;
- bool timer_armed;
};
struct net_bridge_mdb_htable
* vid wasn't set
*/
smp_rmb();
- return (v->pvid & VLAN_TAG_PRESENT) ?
- (v->pvid & ~VLAN_TAG_PRESENT) :
- VLAN_N_VID;
+ return v->pvid ?: VLAN_N_VID;
}
#else
if (br->bridge_forward_delay < BR_MIN_FORWARD_DELAY)
__br_set_forward_delay(br, BR_MIN_FORWARD_DELAY);
- else if (br->bridge_forward_delay < BR_MAX_FORWARD_DELAY)
+ else if (br->bridge_forward_delay > BR_MAX_FORWARD_DELAY)
__br_set_forward_delay(br, BR_MAX_FORWARD_DELAY);
if (r == 0) {
return 0;
}
- if (vid) {
- if (v->port_idx) {
- p = v->parent.port;
- br = p->br;
- dev = p->dev;
- } else {
- br = v->parent.br;
- dev = br->dev;
- }
- ops = dev->netdev_ops;
-
- if (p && (dev->features & NETIF_F_HW_VLAN_CTAG_FILTER)) {
- /* Add VLAN to the device filter if it is supported.
- * Stricly speaking, this is not necessary now, since
- * devices are made promiscuous by the bridge, but if
- * that ever changes this code will allow tagged
- * traffic to enter the bridge.
- */
- err = ops->ndo_vlan_rx_add_vid(dev, htons(ETH_P_8021Q),
- vid);
- if (err)
- return err;
- }
-
- err = br_fdb_insert(br, p, dev->dev_addr, vid);
- if (err) {
- br_err(br, "failed insert local address into bridge "
- "forwarding table\n");
- goto out_filt;
- }
+ if (v->port_idx) {
+ p = v->parent.port;
+ br = p->br;
+ dev = p->dev;
+ } else {
+ br = v->parent.br;
+ dev = br->dev;
+ }
+ ops = dev->netdev_ops;
+
+ if (p && (dev->features & NETIF_F_HW_VLAN_CTAG_FILTER)) {
+ /* Add VLAN to the device filter if it is supported.
+ * Stricly speaking, this is not necessary now, since
+ * devices are made promiscuous by the bridge, but if
+ * that ever changes this code will allow tagged
+ * traffic to enter the bridge.
+ */
+ err = ops->ndo_vlan_rx_add_vid(dev, htons(ETH_P_8021Q),
+ vid);
+ if (err)
+ return err;
+ }
+ err = br_fdb_insert(br, p, dev->dev_addr, vid);
+ if (err) {
+ br_err(br, "failed insert local address into bridge "
+ "forwarding table\n");
+ goto out_filt;
}
set_bit(vid, v->vlan_bitmap);
__vlan_delete_pvid(v, vid);
clear_bit(vid, v->untagged_bitmap);
- if (v->port_idx && vid) {
+ if (v->port_idx) {
struct net_device *dev = v->parent.port->dev;
const struct net_device_ops *ops = dev->netdev_ops;
bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v,
struct sk_buff *skb, u16 *vid)
{
+ int err;
+
/* If VLAN filtering is disabled on the bridge, all packets are
* permitted.
*/
if (!v)
return false;
- if (br_vlan_get_tag(skb, vid)) {
+ err = br_vlan_get_tag(skb, vid);
+ if (!*vid) {
u16 pvid = br_get_pvid(v);
- /* Frame did not have a tag. See if pvid is set
- * on this port. That tells us which vlan untagged
- * traffic belongs to.
+ /* Frame had a tag with VID 0 or did not have a tag.
+ * See if pvid is set on this port. That tells us which
+ * vlan untagged or priority-tagged traffic belongs to.
*/
if (pvid == VLAN_N_VID)
return false;
- /* PVID is set on this port. Any untagged ingress
- * frame is considered to belong to this vlan.
+ /* PVID is set on this port. Any untagged or priority-tagged
+ * ingress frame is considered to belong to this vlan.
*/
- __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), pvid);
+ *vid = pvid;
+ if (likely(err))
+ /* Untagged Frame. */
+ __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), pvid);
+ else
+ /* Priority-tagged Frame.
+ * At this point, We know that skb->vlan_tci had
+ * VLAN_TAG_PRESENT bit and its VID field was 0x000.
+ * We update only VID field and preserve PCP field.
+ */
+ skb->vlan_tci |= pvid;
+
return true;
}
return false;
}
-/* Must be protected by RTNL */
+/* Must be protected by RTNL.
+ * Must be called with vid in range from 1 to 4094 inclusive.
+ */
int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags)
{
struct net_port_vlans *pv = NULL;
return err;
}
-/* Must be protected by RTNL */
+/* Must be protected by RTNL.
+ * Must be called with vid in range from 1 to 4094 inclusive.
+ */
int br_vlan_delete(struct net_bridge *br, u16 vid)
{
struct net_port_vlans *pv;
if (!pv)
return -EINVAL;
- if (vid) {
- /* If the VID !=0 remove fdb for this vid. VID 0 is special
- * in that it's the default and is always there in the fdb.
- */
- spin_lock_bh(&br->hash_lock);
- fdb_delete_by_addr(br, br->dev->dev_addr, vid);
- spin_unlock_bh(&br->hash_lock);
- }
+ spin_lock_bh(&br->hash_lock);
+ fdb_delete_by_addr(br, br->dev->dev_addr, vid);
+ spin_unlock_bh(&br->hash_lock);
__vlan_del(pv, vid);
return 0;
return 0;
}
-/* Must be protected by RTNL */
+/* Must be protected by RTNL.
+ * Must be called with vid in range from 1 to 4094 inclusive.
+ */
int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags)
{
struct net_port_vlans *pv = NULL;
return err;
}
-/* Must be protected by RTNL */
+/* Must be protected by RTNL.
+ * Must be called with vid in range from 1 to 4094 inclusive.
+ */
int nbp_vlan_delete(struct net_bridge_port *port, u16 vid)
{
struct net_port_vlans *pv;
if (!pv)
return -EINVAL;
- if (vid) {
- /* If the VID !=0 remove fdb for this vid. VID 0 is special
- * in that it's the default and is always there in the fdb.
- */
- spin_lock_bh(&port->br->hash_lock);
- fdb_delete_by_addr(port->br, port->dev->dev_addr, vid);
- spin_unlock_bh(&port->br->hash_lock);
- }
+ spin_lock_bh(&port->br->hash_lock);
+ fdb_delete_by_addr(port->br, port->dev->dev_addr, vid);
+ spin_unlock_bh(&port->br->hash_lock);
return __vlan_del(pv, vid);
}
__get_user(kmsg->msg_controllen, &umsg->msg_controllen) ||
__get_user(kmsg->msg_flags, &umsg->msg_flags))
return -EFAULT;
+ if (kmsg->msg_namelen > sizeof(struct sockaddr_storage))
+ return -EINVAL;
kmsg->msg_name = compat_ptr(tmp1);
kmsg->msg_iov = compat_ptr(tmp2);
kmsg->msg_control = compat_ptr(tmp3);
return new_map;
}
-int netif_set_xps_queue(struct net_device *dev, struct cpumask *mask, u16 index)
+int netif_set_xps_queue(struct net_device *dev, const struct cpumask *mask,
+ u16 index)
{
struct xps_dev_maps *dev_maps, *new_dev_maps = NULL;
struct xps_map *map, *new_map;
/* Delayed registration/unregisteration */
static LIST_HEAD(net_todo_list);
+static DECLARE_WAIT_QUEUE_HEAD(netdev_unregistering_wq);
static void net_set_todo(struct net_device *dev)
{
list_add_tail(&dev->todo_list, &net_todo_list);
+ dev_net(dev)->dev_unreg_count++;
}
static void rollback_registered_many(struct list_head *head)
if (dev->destructor)
dev->destructor(dev);
+ /* Report a network device has been unregistered */
+ rtnl_lock();
+ dev_net(dev)->dev_unreg_count--;
+ __rtnl_unlock();
+ wake_up(&netdev_unregistering_wq);
+
/* Free network device */
kobject_put(&dev->dev.kobj);
}
rtnl_unlock();
}
+static void __net_exit rtnl_lock_unregistering(struct list_head *net_list)
+{
+ /* Return with the rtnl_lock held when there are no network
+ * devices unregistering in any network namespace in net_list.
+ */
+ struct net *net;
+ bool unregistering;
+ DEFINE_WAIT(wait);
+
+ for (;;) {
+ prepare_to_wait(&netdev_unregistering_wq, &wait,
+ TASK_UNINTERRUPTIBLE);
+ unregistering = false;
+ rtnl_lock();
+ list_for_each_entry(net, net_list, exit_list) {
+ if (net->dev_unreg_count > 0) {
+ unregistering = true;
+ break;
+ }
+ }
+ if (!unregistering)
+ break;
+ __rtnl_unlock();
+ schedule();
+ }
+ finish_wait(&netdev_unregistering_wq, &wait);
+}
+
static void __net_exit default_device_exit_batch(struct list_head *net_list)
{
/* At exit all network devices most be removed from a network
struct net *net;
LIST_HEAD(dev_kill_list);
- rtnl_lock();
+ /* To prevent network device cleanup code from dereferencing
+ * loopback devices or network devices that have been freed
+ * wait here for all pending unregistrations to complete,
+ * before unregistring the loopback device and allowing the
+ * network namespace be freed.
+ *
+ * The netdev todo list containing all network devices
+ * unregistrations that happen in default_device_exit_batch
+ * will run in the rtnl_unlock() at the end of
+ * default_device_exit_batch.
+ */
+ rtnl_lock_unregistering(net_list);
list_for_each_entry(net, net_list, exit_list) {
for_each_netdev_reverse(net, dev) {
if (dev->rtnl_link_ops)
struct sk_filter *fp = container_of(rcu, struct sk_filter, rcu);
bpf_jit_free(fp);
- kfree(fp);
}
EXPORT_SYMBOL(sk_filter_release_rcu);
if (fprog->filter == NULL)
return -EINVAL;
- fp = kmalloc(fsize + sizeof(*fp), GFP_KERNEL);
+ fp = kmalloc(sk_filter_size(fprog->len), GFP_KERNEL);
if (!fp)
return -ENOMEM;
memcpy(fp->insns, fprog->filter, fsize);
{
struct sk_filter *fp, *old_fp;
unsigned int fsize = sizeof(struct sock_filter) * fprog->len;
+ unsigned int sk_fsize = sk_filter_size(fprog->len);
int err;
if (sock_flag(sk, SOCK_FILTER_LOCKED))
if (fprog->filter == NULL)
return -EINVAL;
- fp = sock_kmalloc(sk, fsize+sizeof(*fp), GFP_KERNEL);
+ fp = sock_kmalloc(sk, sk_fsize, GFP_KERNEL);
if (!fp)
return -ENOMEM;
if (copy_from_user(fp->insns, fprog->filter, fsize)) {
- sock_kfree_s(sk, fp, fsize+sizeof(*fp));
+ sock_kfree_s(sk, fp, sk_fsize);
return -EFAULT;
}
if (poff >= 0) {
__be32 *ports, _ports;
- nhoff += poff;
- ports = skb_header_pointer(skb, nhoff, sizeof(_ports), &_ports);
+ ports = skb_header_pointer(skb, nhoff + poff,
+ sizeof(_ports), &_ports);
if (ports)
flow->ports = *ports;
}
#include <net/secure_seq.h>
-static u32 net_secret[MD5_MESSAGE_BYTES / 4] ____cacheline_aligned;
+#if IS_ENABLED(CONFIG_IPV6) || IS_ENABLED(CONFIG_INET)
+#define NET_SECRET_SIZE (MD5_MESSAGE_BYTES / 4)
-void net_secret_init(void)
+static u32 net_secret[NET_SECRET_SIZE] ____cacheline_aligned;
+
+static void net_secret_init(void)
{
- get_random_bytes(net_secret, sizeof(net_secret));
+ u32 tmp;
+ int i;
+
+ if (likely(net_secret[0]))
+ return;
+
+ for (i = NET_SECRET_SIZE; i > 0;) {
+ do {
+ get_random_bytes(&tmp, sizeof(tmp));
+ } while (!tmp);
+ cmpxchg(&net_secret[--i], 0, tmp);
+ }
}
+#endif
#ifdef CONFIG_INET
static u32 seq_scale(u32 seq)
u32 hash[MD5_DIGEST_WORDS];
u32 i;
+ net_secret_init();
memcpy(hash, saddr, 16);
for (i = 0; i < 4; i++)
secret[i] = net_secret[i] + (__force u32)daddr[i];
u32 hash[MD5_DIGEST_WORDS];
u32 i;
+ net_secret_init();
memcpy(hash, saddr, 16);
for (i = 0; i < 4; i++)
secret[i] = net_secret[i] + (__force u32) daddr[i];
{
u32 hash[MD5_DIGEST_WORDS];
+ net_secret_init();
hash[0] = (__force __u32) daddr;
hash[1] = net_secret[13];
hash[2] = net_secret[14];
{
__u32 hash[4];
+ net_secret_init();
memcpy(hash, daddr, 16);
md5_transform(hash, net_secret);
{
u32 hash[MD5_DIGEST_WORDS];
+ net_secret_init();
hash[0] = (__force u32)saddr;
hash[1] = (__force u32)daddr;
hash[2] = ((__force u16)sport << 16) + (__force u16)dport;
{
u32 hash[MD5_DIGEST_WORDS];
+ net_secret_init();
hash[0] = (__force u32)saddr;
hash[1] = (__force u32)daddr;
hash[2] = (__force u32)dport ^ net_secret[14];
u32 hash[MD5_DIGEST_WORDS];
u64 seq;
+ net_secret_init();
hash[0] = (__force u32)saddr;
hash[1] = (__force u32)daddr;
hash[2] = ((__force u16)sport << 16) + (__force u16)dport;
u64 seq;
u32 i;
+ net_secret_init();
memcpy(hash, saddr, 16);
for (i = 0; i < 4; i++)
secret[i] = net_secret[i] + daddr[i];
sk->sk_ll_usec = sysctl_net_busy_read;
#endif
+ sk->sk_pacing_rate = ~0U;
/*
* Before updating sk_refcnt, we must commit prior changes to memory
* (Documentation/RCU/rculist_nulls.txt for details)
real_dev = dev_get_by_index(src_net, nla_get_u32(tb[IFLA_LINK]));
if (!real_dev)
return -ENODEV;
+ if (real_dev->type != ARPHRD_IEEE802154)
+ return -EINVAL;
lowpan_dev_info(dev)->real_dev = real_dev;
lowpan_dev_info(dev)->fragment_tag = 0;
entry->ldev = dev;
+ /* Set the lowpan harware address to the wpan hardware address. */
+ memcpy(dev->dev_addr, real_dev->dev_addr, IEEE802154_ADDR_LEN);
+
mutex_lock(&lowpan_dev_info(dev)->dev_list_mtx);
INIT_LIST_HEAD(&entry->list);
list_add_tail(&entry->list, &lowpan_devices);
get_random_bytes(&rnd, sizeof(rnd));
} while (rnd == 0);
- if (cmpxchg(&inet_ehash_secret, 0, rnd) == 0) {
+ if (cmpxchg(&inet_ehash_secret, 0, rnd) == 0)
get_random_bytes(&ipv6_hash_secret, sizeof(ipv6_hash_secret));
- net_secret_init();
- }
}
EXPORT_SYMBOL(build_ehash_secret);
in_dev->mr_gq_running = 0;
igmpv3_send_report(in_dev, NULL);
- __in_dev_put(in_dev);
+ in_dev_put(in_dev);
}
static void igmp_ifc_timer_expire(unsigned long data)
igmp_ifc_start_timer(in_dev,
unsolicited_report_interval(in_dev));
}
- __in_dev_put(in_dev);
+ in_dev_put(in_dev);
}
static void igmp_ifc_event(struct in_device *in_dev)
if (unlikely(!INET_TW_MATCH(sk, net, acookie,
saddr, daddr, ports,
dif))) {
- sock_put(sk);
+ inet_twsk_put(inet_twsk(sk));
goto begintw;
}
goto out;
/* initialize protocol header pointer */
skb->transport_header = skb->network_header + fragheaderlen;
- skb->ip_summed = CHECKSUM_PARTIAL;
skb->csum = 0;
- /* specify the length of each IP datagram fragment */
- skb_shinfo(skb)->gso_size = maxfraglen - fragheaderlen;
- skb_shinfo(skb)->gso_type = SKB_GSO_UDP;
+
__skb_queue_tail(queue, skb);
+ } else if (skb_is_gso(skb)) {
+ goto append;
}
+ skb->ip_summed = CHECKSUM_PARTIAL;
+ /* specify the length of each IP datagram fragment */
+ skb_shinfo(skb)->gso_size = maxfraglen - fragheaderlen;
+ skb_shinfo(skb)->gso_type = SKB_GSO_UDP;
+
+append:
return skb_append_datato_frags(sk, skb, getfrag, from,
(length - transhdrlen));
}
tunnel->err_count = 0;
}
+ tos = ip_tunnel_ecn_encap(tos, inner_iph, skb);
ttl = tnl_params->ttl;
if (ttl == 0) {
if (skb->protocol == htons(ETH_P_IP))
max_headroom = LL_RESERVED_SPACE(rt->dst.dev) + sizeof(struct iphdr)
+ rt->dst.header_len;
- if (max_headroom > dev->needed_headroom) {
+ if (max_headroom > dev->needed_headroom)
dev->needed_headroom = max_headroom;
- if (skb_cow_head(skb, dev->needed_headroom)) {
- dev->stats.tx_dropped++;
- dev_kfree_skb(skb);
- return;
- }
+
+ if (skb_cow_head(skb, dev->needed_headroom)) {
+ dev->stats.tx_dropped++;
+ dev_kfree_skb(skb);
+ return;
}
err = iptunnel_xmit(rt, skb, fl4.saddr, fl4.daddr, protocol,
- ip_tunnel_ecn_encap(tos, inner_iph, skb), ttl, df,
- !net_eq(tunnel->net, dev_net(dev)));
+ tos, ttl, df, !net_eq(tunnel->net, dev_net(dev)));
iptunnel_xmit_stats(err, &dev->stats, dev->tstats);
return;
/* FB netdevice is special: we have one, and only one per netns.
* Allowing to move it to another netns is clearly unsafe.
*/
- if (!IS_ERR(itn->fb_tunnel_dev))
+ if (!IS_ERR(itn->fb_tunnel_dev)) {
itn->fb_tunnel_dev->features |= NETIF_F_NETNS_LOCAL;
+ ip_tunnel_add(itn, netdev_priv(itn->fb_tunnel_dev));
+ }
rtnl_unlock();
return PTR_RET(itn->fb_tunnel_dev);
if (!net_eq(dev_net(t->dev), net))
unregister_netdevice_queue(t->dev, head);
}
- if (itn->fb_tunnel_dev)
- unregister_netdevice_queue(itn->fb_tunnel_dev, head);
}
void ip_tunnel_delete_net(struct ip_tunnel_net *itn, struct rtnl_link_ops *ops)
memset(IPCB(skb), 0, sizeof(*IPCB(skb)));
/* Push down and install the IP header. */
- __skb_push(skb, sizeof(struct iphdr));
+ skb_push(skb, sizeof(struct iphdr));
skb_reset_network_header(skb);
iph = ip_hdr(skb);
iph->saddr, iph->daddr, 0);
if (tunnel != NULL) {
struct pcpu_tstats *tstats;
+ u32 oldmark = skb->mark;
+ int ret;
- if (!xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb))
+
+ /* temporarily mark the skb with the tunnel o_key, to
+ * only match policies with this mark.
+ */
+ skb->mark = be32_to_cpu(tunnel->parms.o_key);
+ ret = xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb);
+ skb->mark = oldmark;
+ if (!ret)
return -1;
tstats = this_cpu_ptr(tunnel->dev->tstats);
tstats->rx_bytes += skb->len;
u64_stats_update_end(&tstats->syncp);
- skb->mark = 0;
secpath_reset(skb);
skb->dev = tunnel->dev;
return 1;
memset(&fl4, 0, sizeof(fl4));
flowi4_init_output(&fl4, tunnel->parms.link,
- be32_to_cpu(tunnel->parms.i_key), RT_TOS(tos),
+ be32_to_cpu(tunnel->parms.o_key), RT_TOS(tos),
RT_SCOPE_UNIVERSE,
IPPROTO_IPIP, 0,
dst, tiph->saddr, 0, 0);
if (th == NULL)
return NF_DROP;
- synproxy_parse_options(skb, par->thoff, th, &opts);
+ if (!synproxy_parse_options(skb, par->thoff, th, &opts))
+ return NF_DROP;
if (th->syn && !(th->ack || th->fin || th->rst)) {
/* Initial SYN from client */
/* fall through */
case TCP_CONNTRACK_SYN_SENT:
- synproxy_parse_options(skb, thoff, th, &opts);
+ if (!synproxy_parse_options(skb, thoff, th, &opts))
+ return NF_DROP;
if (!th->syn && th->ack &&
CTINFO2DIR(ctinfo) == IP_CT_DIR_ORIGINAL) {
if (!th->syn || !th->ack)
break;
- synproxy_parse_options(skb, thoff, th, &opts);
+ if (!synproxy_parse_options(skb, thoff, th, &opts))
+ return NF_DROP;
+
if (opts.options & XT_SYNPROXY_OPT_TIMESTAMP)
synproxy->tsoff = opts.tsval - synproxy->its;
if (type == ICMP_DEST_UNREACH && code == ICMP_FRAG_NEEDED)
ipv4_sk_update_pmtu(skb, sk, info);
- else if (type == ICMP_REDIRECT)
+ else if (type == ICMP_REDIRECT) {
ipv4_sk_redirect(skb, sk);
+ return;
+ }
/* Report error on raw socket, if:
1. User requested ip_recverr.
RT_SCOPE_LINK);
goto make_route;
}
- if (fl4->saddr) {
+ if (!fl4->saddr) {
if (ipv4_is_multicast(fl4->daddr))
fl4->saddr = inet_select_addr(dev_out, 0,
fl4->flowi4_scope);
tp->lost_cnt_hint -= tcp_skb_pcount(prev);
}
- TCP_SKB_CB(skb)->tcp_flags |= TCP_SKB_CB(prev)->tcp_flags;
+ TCP_SKB_CB(prev)->tcp_flags |= TCP_SKB_CB(skb)->tcp_flags;
+ if (TCP_SKB_CB(skb)->tcp_flags & TCPHDR_FIN)
+ TCP_SKB_CB(prev)->end_seq++;
+
if (skb == tcp_highest_sack(sk))
tcp_advance_highest_sack(sk, skb);
tcp_init_cwnd_reduction(sk, true);
tcp_set_ca_state(sk, TCP_CA_CWR);
tcp_end_cwnd_reduction(sk);
- tcp_set_ca_state(sk, TCP_CA_Open);
+ tcp_try_keep_open(sk);
NET_INC_STATS_BH(sock_net(sk),
LINUX_MIB_TCPLOSSPROBERECOVERY);
}
} else
tcp_init_metrics(sk);
+ tcp_update_pacing_rate(sk);
+
/* Prevent spurious tcp_cwnd_restart() on first data packet */
tp->lsndtime = tcp_time_stamp;
unsigned int size = 0;
unsigned int eff_sacks;
+ opts->options = 0;
+
#ifdef CONFIG_TCP_MD5SIG
*md5 = tp->af_specific->md5_lookup(sk, sk);
if (unlikely(*md5)) {
skb_orphan(skb);
skb->sk = sk;
- skb->destructor = (sysctl_tcp_limit_output_bytes > 0) ?
- tcp_wfree : sock_wfree;
+ skb->destructor = tcp_wfree;
atomic_add(skb->truesize, &sk->sk_wmem_alloc);
/* Build TCP header and checksum it. */
static void tcp_set_skb_tso_segs(const struct sock *sk, struct sk_buff *skb,
unsigned int mss_now)
{
- if (skb->len <= mss_now || !sk_can_gso(sk) ||
- skb->ip_summed == CHECKSUM_NONE) {
+ /* Make sure we own this skb before messing gso_size/gso_segs */
+ WARN_ON_ONCE(skb_cloned(skb));
+
+ if (skb->len <= mss_now || skb->ip_summed == CHECKSUM_NONE) {
/* Avoid the costly divide in the normal
* non-TSO case.
*/
if (nsize < 0)
nsize = 0;
- if (skb_cloned(skb) &&
- skb_is_nonlinear(skb) &&
- pskb_expand_head(skb, 0, 0, GFP_ATOMIC))
+ if (skb_unclone(skb, GFP_ATOMIC))
return -ENOMEM;
/* Get a new skb... force flag on. */
while ((skb = tcp_send_head(sk))) {
unsigned int limit;
-
tso_segs = tcp_init_tso_segs(sk, skb, mss_now);
BUG_ON(!tso_segs);
break;
}
- /* TSQ : sk_wmem_alloc accounts skb truesize,
- * including skb overhead. But thats OK.
+ /* TCP Small Queues :
+ * Control number of packets in qdisc/devices to two packets / or ~1 ms.
+ * This allows for :
+ * - better RTT estimation and ACK scheduling
+ * - faster recovery
+ * - high rates
*/
- if (atomic_read(&sk->sk_wmem_alloc) >= sysctl_tcp_limit_output_bytes) {
+ limit = max(skb->truesize, sk->sk_pacing_rate >> 10);
+
+ if (atomic_read(&sk->sk_wmem_alloc) > limit) {
set_bit(TSQ_THROTTLED, &tp->tsq_flags);
break;
}
+
limit = mss_now;
if (tso_segs > 1 && !tcp_urg_mode(tp))
limit = tcp_mss_split_point(sk, skb, mss_now,
int oldpcount = tcp_skb_pcount(skb);
if (unlikely(oldpcount > 1)) {
+ if (skb_unclone(skb, GFP_ATOMIC))
+ return -ENOMEM;
tcp_init_tso_segs(sk, skb, cur_mss);
tcp_adjust_pcount(sk, skb, oldpcount - tcp_skb_pcount(skb));
}
break;
case ICMP_REDIRECT:
ipv4_sk_redirect(skb, sk);
- break;
+ goto out;
}
/*
memset(fl4, 0, sizeof(struct flowi4));
fl4->flowi4_mark = skb->mark;
+ fl4->flowi4_oif = skb_dst(skb)->dev->ifindex;
if (!ip_is_fragment(iph)) {
switch (iph->protocol) {
return false;
}
+/* Compares an address/prefix_len with addresses on device @dev.
+ * If one is found it returns true.
+ */
+bool ipv6_chk_custom_prefix(const struct in6_addr *addr,
+ const unsigned int prefix_len, struct net_device *dev)
+{
+ struct inet6_dev *idev;
+ struct inet6_ifaddr *ifa;
+ bool ret = false;
+
+ rcu_read_lock();
+ idev = __in6_dev_get(dev);
+ if (idev) {
+ read_lock_bh(&idev->lock);
+ list_for_each_entry(ifa, &idev->addr_list, if_list) {
+ ret = ipv6_prefix_equal(addr, &ifa->addr, prefix_len);
+ if (ret)
+ break;
+ }
+ read_unlock_bh(&idev->lock);
+ }
+ rcu_read_unlock();
+
+ return ret;
+}
+EXPORT_SYMBOL(ipv6_chk_custom_prefix);
+
int ipv6_chk_prefix(const struct in6_addr *addr, struct net_device *dev)
{
struct inet6_dev *idev;
else
stored_lft = 0;
if (!update_lft && !create && stored_lft) {
- if (valid_lft > MIN_VALID_LIFETIME ||
- valid_lft > stored_lft)
- update_lft = 1;
- else if (stored_lft <= MIN_VALID_LIFETIME) {
- /* valid_lft <= stored_lft is always true */
- /*
- * RFC 4862 Section 5.5.3e:
- * "Note that the preferred lifetime of
- * the corresponding address is always
- * reset to the Preferred Lifetime in
- * the received Prefix Information
- * option, regardless of whether the
- * valid lifetime is also reset or
- * ignored."
- *
- * So if the preferred lifetime in
- * this advertisement is different
- * than what we have stored, but the
- * valid lifetime is invalid, just
- * reset prefered_lft.
- *
- * We must set the valid lifetime
- * to the stored lifetime since we'll
- * be updating the timestamp below,
- * else we'll set it back to the
- * minimum.
- */
- if (prefered_lft != ifp->prefered_lft) {
- valid_lft = stored_lft;
- update_lft = 1;
- }
- } else {
- valid_lft = MIN_VALID_LIFETIME;
- if (valid_lft < prefered_lft)
- prefered_lft = valid_lft;
- update_lft = 1;
- }
+ const u32 minimum_lft = min(
+ stored_lft, (u32)MIN_VALID_LIFETIME);
+ valid_lft = max(valid_lft, minimum_lft);
+
+ /* RFC4862 Section 5.5.3e:
+ * "Note that the preferred lifetime of the
+ * corresponding address is always reset to
+ * the Preferred Lifetime in the received
+ * Prefix Information option, regardless of
+ * whether the valid lifetime is also reset or
+ * ignored."
+ *
+ * So we should always update prefered_lft here.
+ */
+ update_lft = 1;
}
if (update_lft) {
struct ip_auth_hdr *ah = (struct ip_auth_hdr*)(skb->data+offset);
struct xfrm_state *x;
- if (type != ICMPV6_DEST_UNREACH &&
- type != ICMPV6_PKT_TOOBIG &&
+ if (type != ICMPV6_PKT_TOOBIG &&
type != NDISC_REDIRECT)
return;
struct ip_esp_hdr *esph = (struct ip_esp_hdr *)(skb->data + offset);
struct xfrm_state *x;
- if (type != ICMPV6_DEST_UNREACH &&
- type != ICMPV6_PKT_TOOBIG &&
+ if (type != ICMPV6_PKT_TOOBIG &&
type != NDISC_REDIRECT)
return;
}
if (unlikely(!INET6_TW_MATCH(sk, net, saddr, daddr,
ports, dif))) {
- sock_put(sk);
+ inet_twsk_put(inet_twsk(sk));
goto begintw;
}
goto out;
struct ip6_tnl *tunnel = netdev_priv(dev);
struct net_device *tdev; /* Device to other host */
struct ipv6hdr *ipv6h; /* Our new IP header */
- unsigned int max_headroom; /* The extra header space needed */
+ unsigned int max_headroom = 0; /* The extra header space needed */
int gre_hlen;
struct ipv6_tel_txoption opt;
int mtu;
skb_scrub_packet(skb, !net_eq(tunnel->net, dev_net(dev)));
- max_headroom = LL_RESERVED_SPACE(tdev) + gre_hlen + dst->header_len;
+ max_headroom += LL_RESERVED_SPACE(tdev) + gre_hlen + dst->header_len;
if (skb_headroom(skb) < max_headroom || skb_shared(skb) ||
(skb_cloned(skb) && !skb_clone_writable(skb, 0))) {
if (t->parms.o_flags&GRE_SEQ)
addend += 4;
}
+ t->hlen = addend;
if (p->flags & IP6_TNL_F_CAP_XMIT) {
int strict = (ipv6_addr_type(&p->raddr) &
}
ip6_rt_put(rt);
}
-
- t->hlen = addend;
}
static int ip6gre_tnl_change(struct ip6_tnl *t,
static int ip6gre_tunnel_change_mtu(struct net_device *dev, int new_mtu)
{
- struct ip6_tnl *tunnel = netdev_priv(dev);
if (new_mtu < 68 ||
- new_mtu > 0xFFF8 - dev->hard_header_len - tunnel->hlen)
+ new_mtu > 0xFFF8 - dev->hard_header_len)
return -EINVAL;
dev->mtu = new_mtu;
return 0;
}
rcu_read_lock_bh();
- nexthop = rt6_nexthop((struct rt6_info *)dst, &ipv6_hdr(skb)->daddr);
+ nexthop = rt6_nexthop((struct rt6_info *)dst);
neigh = __ipv6_neigh_lookup_noref(dst->dev, nexthop);
if (unlikely(!neigh))
neigh = __neigh_create(&nd_tbl, nexthop, dst->dev, false);
*/
rt = (struct rt6_info *) *dst;
rcu_read_lock_bh();
- n = __ipv6_neigh_lookup_noref(rt->dst.dev, rt6_nexthop(rt, &fl6->daddr));
+ n = __ipv6_neigh_lookup_noref(rt->dst.dev, rt6_nexthop(rt));
err = n && !(n->nud_state & NUD_VALID) ? -EINVAL : 0;
rcu_read_unlock_bh();
{
struct sk_buff *skb;
+ struct frag_hdr fhdr;
int err;
/* There is support for UDP large send offload by network
skb->transport_header = skb->network_header + fragheaderlen;
skb->protocol = htons(ETH_P_IPV6);
- skb->ip_summed = CHECKSUM_PARTIAL;
skb->csum = 0;
- }
-
- err = skb_append_datato_frags(sk,skb, getfrag, from,
- (length - transhdrlen));
- if (!err) {
- struct frag_hdr fhdr;
- /* Specify the length of each IPv6 datagram fragment.
- * It has to be a multiple of 8.
- */
- skb_shinfo(skb)->gso_size = (mtu - fragheaderlen -
- sizeof(struct frag_hdr)) & ~7;
- skb_shinfo(skb)->gso_type = SKB_GSO_UDP;
- ipv6_select_ident(&fhdr, rt);
- skb_shinfo(skb)->ip6_frag_id = fhdr.identification;
__skb_queue_tail(&sk->sk_write_queue, skb);
-
- return 0;
+ } else if (skb_is_gso(skb)) {
+ goto append;
}
- /* There is not enough support do UPD LSO,
- * so follow normal path
- */
- kfree_skb(skb);
- return err;
+ skb->ip_summed = CHECKSUM_PARTIAL;
+ /* Specify the length of each IPv6 datagram fragment.
+ * It has to be a multiple of 8.
+ */
+ skb_shinfo(skb)->gso_size = (mtu - fragheaderlen -
+ sizeof(struct frag_hdr)) & ~7;
+ skb_shinfo(skb)->gso_type = SKB_GSO_UDP;
+ ipv6_select_ident(&fhdr, rt);
+ skb_shinfo(skb)->ip6_frag_id = fhdr.identification;
+
+append:
+ return skb_append_datato_frags(sk, skb, getfrag, from,
+ (length - transhdrlen));
}
static inline struct ipv6_opt_hdr *ip6_opt_dup(struct ipv6_opt_hdr *src,
* --yoshfuji
*/
- cork->length += length;
- if (length > mtu) {
- int proto = sk->sk_protocol;
- if (dontfrag && (proto == IPPROTO_UDP || proto == IPPROTO_RAW)){
- ipv6_local_rxpmtu(sk, fl6, mtu-exthdrlen);
- return -EMSGSIZE;
- }
-
- if (proto == IPPROTO_UDP &&
- (rt->dst.dev->features & NETIF_F_UFO)) {
+ if ((length > mtu) && dontfrag && (sk->sk_protocol == IPPROTO_UDP ||
+ sk->sk_protocol == IPPROTO_RAW)) {
+ ipv6_local_rxpmtu(sk, fl6, mtu-exthdrlen);
+ return -EMSGSIZE;
+ }
- err = ip6_ufo_append_data(sk, getfrag, from, length,
- hh_len, fragheaderlen,
- transhdrlen, mtu, flags, rt);
- if (err)
- goto error;
- return 0;
- }
+ skb = skb_peek_tail(&sk->sk_write_queue);
+ cork->length += length;
+ if (((length > mtu) ||
+ (skb && skb_is_gso(skb))) &&
+ (sk->sk_protocol == IPPROTO_UDP) &&
+ (rt->dst.dev->features & NETIF_F_UFO)) {
+ err = ip6_ufo_append_data(sk, getfrag, from, length,
+ hh_len, fragheaderlen,
+ transhdrlen, mtu, flags, rt);
+ if (err)
+ goto error;
+ return 0;
}
- if ((skb = skb_peek_tail(&sk->sk_write_queue)) == NULL)
+ if (!skb)
goto alloc_new_skb;
while (length > 0) {
static int
ip6_tnl_change_mtu(struct net_device *dev, int new_mtu)
{
- if (new_mtu < IPV6_MIN_MTU) {
- return -EINVAL;
+ struct ip6_tnl *tnl = netdev_priv(dev);
+
+ if (tnl->parms.proto == IPPROTO_IPIP) {
+ if (new_mtu < 68)
+ return -EINVAL;
+ } else {
+ if (new_mtu < IPV6_MIN_MTU)
+ return -EINVAL;
}
+ if (new_mtu > 0xFFF8 - dev->hard_header_len)
+ return -EINVAL;
dev->mtu = new_mtu;
return 0;
}
}
}
- t = rtnl_dereference(ip6n->tnls_wc[0]);
- unregister_netdevice_queue(t->dev, &list);
unregister_netdevice_many(&list);
}
if (!ip6n->fb_tnl_dev)
goto err_alloc_dev;
dev_net_set(ip6n->fb_tnl_dev, net);
+ ip6n->fb_tnl_dev->rtnl_link_ops = &ip6_link_ops;
/* FB netdevice is special: we have one, and only one per netns.
* Allowing to move it to another netns is clearly unsafe.
*/
(struct ip_comp_hdr *)(skb->data + offset);
struct xfrm_state *x;
- if (type != ICMPV6_DEST_UNREACH &&
- type != ICMPV6_PKT_TOOBIG &&
+ if (type != ICMPV6_PKT_TOOBIG &&
type != NDISC_REDIRECT)
return;
if (idev->mc_dad_count)
mld_dad_start_timer(idev, idev->mc_maxdelay);
}
- __in6_dev_put(idev);
+ in6_dev_put(idev);
}
static int ip6_mc_del1_src(struct ifmcaddr6 *pmc, int sfmode,
idev->mc_gq_running = 0;
mld_send_report(idev, NULL);
- __in6_dev_put(idev);
+ in6_dev_put(idev);
}
static void mld_ifc_timer_expire(unsigned long data)
if (idev->mc_ifc_count)
mld_ifc_start_timer(idev, idev->mc_maxdelay);
}
- __in6_dev_put(idev);
+ in6_dev_put(idev);
}
static void mld_ifc_event(struct inet6_dev *idev)
if (th == NULL)
return NF_DROP;
- synproxy_parse_options(skb, par->thoff, th, &opts);
+ if (!synproxy_parse_options(skb, par->thoff, th, &opts))
+ return NF_DROP;
if (th->syn && !(th->ack || th->fin || th->rst)) {
/* Initial SYN from client */
/* fall through */
case TCP_CONNTRACK_SYN_SENT:
- synproxy_parse_options(skb, thoff, th, &opts);
+ if (!synproxy_parse_options(skb, thoff, th, &opts))
+ return NF_DROP;
if (!th->syn && th->ack &&
CTINFO2DIR(ctinfo) == IP_CT_DIR_ORIGINAL) {
if (!th->syn || !th->ack)
break;
- synproxy_parse_options(skb, thoff, th, &opts);
+ if (!synproxy_parse_options(skb, thoff, th, &opts))
+ return NF_DROP;
+
if (opts.options & XT_SYNPROXY_OPT_TIMESTAMP)
synproxy->tsoff = opts.tsval - synproxy->its;
ip6_sk_update_pmtu(skb, sk, info);
harderr = (np->pmtudisc == IPV6_PMTUDISC_DO);
}
- if (type == NDISC_REDIRECT)
+ if (type == NDISC_REDIRECT) {
ip6_sk_redirect(skb, sk);
+ return;
+ }
if (np->recverr) {
u8 *payload = skb->data;
if (!inet->hdrincl)
}
#ifdef CONFIG_IPV6_ROUTER_PREF
+struct __rt6_probe_work {
+ struct work_struct work;
+ struct in6_addr target;
+ struct net_device *dev;
+};
+
+static void rt6_probe_deferred(struct work_struct *w)
+{
+ struct in6_addr mcaddr;
+ struct __rt6_probe_work *work =
+ container_of(w, struct __rt6_probe_work, work);
+
+ addrconf_addr_solict_mult(&work->target, &mcaddr);
+ ndisc_send_ns(work->dev, NULL, &work->target, &mcaddr, NULL);
+ dev_put(work->dev);
+ kfree(w);
+}
+
static void rt6_probe(struct rt6_info *rt)
{
struct neighbour *neigh;
if (!neigh ||
time_after(jiffies, neigh->updated + rt->rt6i_idev->cnf.rtr_probe_interval)) {
- struct in6_addr mcaddr;
- struct in6_addr *target;
+ struct __rt6_probe_work *work;
- if (neigh) {
+ work = kmalloc(sizeof(*work), GFP_ATOMIC);
+
+ if (neigh && work)
neigh->updated = jiffies;
+
+ if (neigh)
write_unlock(&neigh->lock);
- }
- target = (struct in6_addr *)&rt->rt6i_gateway;
- addrconf_addr_solict_mult(target, &mcaddr);
- ndisc_send_ns(rt->dst.dev, NULL, target, &mcaddr, NULL);
+ if (work) {
+ INIT_WORK(&work->work, rt6_probe_deferred);
+ work->target = rt->rt6i_gateway;
+ dev_hold(rt->dst.dev);
+ work->dev = rt->dst.dev;
+ schedule_work(&work->work);
+ }
} else {
out:
write_unlock(&neigh->lock);
if (ort->rt6i_dst.plen != 128 &&
ipv6_addr_equal(&ort->rt6i_dst.addr, daddr))
rt->rt6i_flags |= RTF_ANYCAST;
- rt->rt6i_gateway = *daddr;
}
rt->rt6i_flags |= RTF_CACHE;
rt->dst.flags |= DST_HOST;
rt->dst.output = ip6_output;
atomic_set(&rt->dst.__refcnt, 1);
+ rt->rt6i_gateway = fl6->daddr;
rt->rt6i_dst.addr = fl6->daddr;
rt->rt6i_dst.plen = 128;
rt->rt6i_idev = idev;
in6_dev_hold(rt->rt6i_idev);
rt->dst.lastuse = jiffies;
- rt->rt6i_gateway = ort->rt6i_gateway;
+ if (ort->rt6i_flags & RTF_GATEWAY)
+ rt->rt6i_gateway = ort->rt6i_gateway;
+ else
+ rt->rt6i_gateway = *dest;
rt->rt6i_flags = ort->rt6i_flags;
if ((ort->rt6i_flags & (RTF_DEFAULT | RTF_ADDRCONF)) ==
(RTF_DEFAULT | RTF_ADDRCONF))
else
rt->rt6i_flags |= RTF_LOCAL;
+ rt->rt6i_gateway = *addr;
rt->rt6i_dst.addr = *addr;
rt->rt6i_dst.plen = 128;
rt->rt6i_table = fib6_get_table(net, RT6_TABLE_LOCAL);
return false;
}
+/* Checks if an address matches an address on the tunnel interface.
+ * Used to detect the NAT of proto 41 packets and let them pass spoofing test.
+ * Long story:
+ * This function is called after we considered the packet as spoofed
+ * in is_spoofed_6rd.
+ * We may have a router that is doing NAT for proto 41 packets
+ * for an internal station. Destination a.a.a.a/PREFIX:bbbb:bbbb
+ * will be translated to n.n.n.n/PREFIX:bbbb:bbbb. And is_spoofed_6rd
+ * function will return true, dropping the packet.
+ * But, we can still check if is spoofed against the IP
+ * addresses associated with the interface.
+ */
+static bool only_dnatted(const struct ip_tunnel *tunnel,
+ const struct in6_addr *v6dst)
+{
+ int prefix_len;
+
+#ifdef CONFIG_IPV6_SIT_6RD
+ prefix_len = tunnel->ip6rd.prefixlen + 32
+ - tunnel->ip6rd.relay_prefixlen;
+#else
+ prefix_len = 48;
+#endif
+ return ipv6_chk_custom_prefix(v6dst, prefix_len, tunnel->dev);
+}
+
+/* Returns true if a packet is spoofed */
+static bool packet_is_spoofed(struct sk_buff *skb,
+ const struct iphdr *iph,
+ struct ip_tunnel *tunnel)
+{
+ const struct ipv6hdr *ipv6h;
+
+ if (tunnel->dev->priv_flags & IFF_ISATAP) {
+ if (!isatap_chksrc(skb, iph, tunnel))
+ return true;
+
+ return false;
+ }
+
+ if (tunnel->dev->flags & IFF_POINTOPOINT)
+ return false;
+
+ ipv6h = ipv6_hdr(skb);
+
+ if (unlikely(is_spoofed_6rd(tunnel, iph->saddr, &ipv6h->saddr))) {
+ net_warn_ratelimited("Src spoofed %pI4/%pI6c -> %pI4/%pI6c\n",
+ &iph->saddr, &ipv6h->saddr,
+ &iph->daddr, &ipv6h->daddr);
+ return true;
+ }
+
+ if (likely(!is_spoofed_6rd(tunnel, iph->daddr, &ipv6h->daddr)))
+ return false;
+
+ if (only_dnatted(tunnel, &ipv6h->daddr))
+ return false;
+
+ net_warn_ratelimited("Dst spoofed %pI4/%pI6c -> %pI4/%pI6c\n",
+ &iph->saddr, &ipv6h->saddr,
+ &iph->daddr, &ipv6h->daddr);
+ return true;
+}
+
static int ipip6_rcv(struct sk_buff *skb)
{
const struct iphdr *iph = ip_hdr(skb);
IPCB(skb)->flags = 0;
skb->protocol = htons(ETH_P_IPV6);
- if (tunnel->dev->priv_flags & IFF_ISATAP) {
- if (!isatap_chksrc(skb, iph, tunnel)) {
- tunnel->dev->stats.rx_errors++;
- goto out;
- }
- } else if (!(tunnel->dev->flags&IFF_POINTOPOINT)) {
- if (is_spoofed_6rd(tunnel, iph->saddr,
- &ipv6_hdr(skb)->saddr) ||
- is_spoofed_6rd(tunnel, iph->daddr,
- &ipv6_hdr(skb)->daddr)) {
- tunnel->dev->stats.rx_errors++;
- goto out;
- }
+ if (packet_is_spoofed(skb, iph, tunnel)) {
+ tunnel->dev->stats.rx_errors++;
+ goto out;
}
__skb_tunnel_rx(skb, tunnel->dev, tunnel->net);
neigh = dst_neigh_lookup(skb_dst(skb), &iph6->daddr);
if (neigh == NULL) {
- net_dbg_ratelimited("sit: nexthop == NULL\n");
+ net_dbg_ratelimited("nexthop == NULL\n");
goto tx_error;
}
neigh = dst_neigh_lookup(skb_dst(skb), &iph6->daddr);
if (neigh == NULL) {
- net_dbg_ratelimited("sit: nexthop == NULL\n");
+ net_dbg_ratelimited("nexthop == NULL\n");
goto tx_error;
}
goto err_alloc_dev;
}
dev_net_set(sitn->fb_tunnel_dev, net);
+ sitn->fb_tunnel_dev->rtnl_link_ops = &sit_link_ops;
/* FB netdevice is special: we have one, and only one per netns.
* Allowing to move it to another netns is clearly unsafe.
*/
rtnl_lock();
sit_destroy_tunnels(sitn, &list);
- unregister_netdevice_queue(sitn->fb_tunnel_dev, &list);
unregister_netdevice_many(&list);
rtnl_unlock();
}
if (type == ICMPV6_PKT_TOOBIG)
ip6_sk_update_pmtu(skb, sk, info);
- if (type == NDISC_REDIRECT)
+ if (type == NDISC_REDIRECT) {
ip6_sk_redirect(skb, sk);
+ goto out;
+ }
np = inet6_sk(sk);
if (tclass < 0)
tclass = np->tclass;
- if (dontfrag < 0)
- dontfrag = np->dontfrag;
-
if (msg->msg_flags&MSG_CONFIRM)
goto do_confirm;
back_from_confirm:
up->pending = AF_INET6;
do_append_data:
+ if (dontfrag < 0)
+ dontfrag = np->dontfrag;
up->len += ulen;
getfrag = is_udplite ? udplite_getfrag : ip_generic_getfrag;
err = ip6_append_data(sk, getfrag, msg->msg_iov, ulen,
memset(fl6, 0, sizeof(struct flowi6));
fl6->flowi6_mark = skb->mark;
+ fl6->flowi6_oif = skb_dst(skb)->dev->ifindex;
fl6->daddr = reverse ? hdr->saddr : hdr->daddr;
fl6->saddr = reverse ? hdr->daddr : hdr->saddr;
x->id.proto = proto;
x->id.spi = sa->sadb_sa_spi;
- x->props.replay_window = sa->sadb_sa_replay;
+ x->props.replay_window = min_t(unsigned int, sa->sadb_sa_replay,
+ (sizeof(x->replay.bitmap) * 8));
if (sa->sadb_sa_flags & SADB_SAFLAGS_NOECN)
x->props.flags |= XFRM_STATE_NOECN;
if (sa->sadb_sa_flags & SADB_SAFLAGS_DECAP_DSCP)
static void l2tp_session_set_header_len(struct l2tp_session *session, int version);
static void l2tp_tunnel_free(struct l2tp_tunnel *tunnel);
+static inline struct l2tp_tunnel *l2tp_tunnel(struct sock *sk)
+{
+ return sk->sk_user_data;
+}
+
static inline struct l2tp_net *l2tp_pernet(struct net *net)
{
BUG_ON(!net);
return 0;
#if IS_ENABLED(CONFIG_IPV6)
- if (sk->sk_family == PF_INET6) {
+ if (sk->sk_family == PF_INET6 && !l2tp_tunnel(sk)->v4mapped) {
if (!uh->check) {
LIMIT_NETDEBUG(KERN_INFO "L2TP: IPv6: checksum is 0\n");
return 1;
/* Queue the packet to IP for output */
skb->local_df = 1;
#if IS_ENABLED(CONFIG_IPV6)
- if (skb->sk->sk_family == PF_INET6)
+ if (skb->sk->sk_family == PF_INET6 && !tunnel->v4mapped)
error = inet6_csk_xmit(skb, NULL);
else
#endif
/* Calculate UDP checksum if configured to do so */
#if IS_ENABLED(CONFIG_IPV6)
- if (sk->sk_family == PF_INET6)
+ if (sk->sk_family == PF_INET6 && !tunnel->v4mapped)
l2tp_xmit_ipv6_csum(sk, skb, udp_len);
else
#endif
*/
static void l2tp_tunnel_destruct(struct sock *sk)
{
- struct l2tp_tunnel *tunnel;
+ struct l2tp_tunnel *tunnel = l2tp_tunnel(sk);
struct l2tp_net *pn;
- tunnel = sk->sk_user_data;
if (tunnel == NULL)
goto end;
}
/* Check if this socket has already been prepped */
- tunnel = (struct l2tp_tunnel *)sk->sk_user_data;
+ tunnel = l2tp_tunnel(sk);
if (tunnel != NULL) {
/* This socket has already been prepped */
err = -EBUSY;
if (cfg != NULL)
tunnel->debug = cfg->debug;
+#if IS_ENABLED(CONFIG_IPV6)
+ if (sk->sk_family == PF_INET6) {
+ struct ipv6_pinfo *np = inet6_sk(sk);
+
+ if (ipv6_addr_v4mapped(&np->saddr) &&
+ ipv6_addr_v4mapped(&np->daddr)) {
+ struct inet_sock *inet = inet_sk(sk);
+
+ tunnel->v4mapped = true;
+ inet->inet_saddr = np->saddr.s6_addr32[3];
+ inet->inet_rcv_saddr = np->rcv_saddr.s6_addr32[3];
+ inet->inet_daddr = np->daddr.s6_addr32[3];
+ } else {
+ tunnel->v4mapped = false;
+ }
+ }
+#endif
+
/* Mark socket as an encapsulation socket. See net/ipv4/udp.c */
tunnel->encap = encap;
if (encap == L2TP_ENCAPTYPE_UDP) {
udp_sk(sk)->encap_rcv = l2tp_udp_encap_recv;
udp_sk(sk)->encap_destroy = l2tp_udp_encap_destroy;
#if IS_ENABLED(CONFIG_IPV6)
- if (sk->sk_family == PF_INET6)
+ if (sk->sk_family == PF_INET6 && !tunnel->v4mapped)
udpv6_encap_enable();
else
#endif
struct sock *sock; /* Parent socket */
int fd; /* Parent fd, if tunnel socket
* was created by userspace */
+#if IS_ENABLED(CONFIG_IPV6)
+ bool v4mapped;
+#endif
struct work_struct del_work;
goto error_put_sess_tun;
}
+ local_bh_disable();
l2tp_xmit_skb(session, skb, session->hdr_len);
+ local_bh_enable();
sock_put(ps->tunnel_sock);
sock_put(sk);
skb->data[0] = ppph[0];
skb->data[1] = ppph[1];
+ local_bh_disable();
l2tp_xmit_skb(session, skb, session->hdr_len);
+ local_bh_enable();
sock_put(sk_tun);
sock_put(sk);
} else {
lapb->n2count++;
lapb_requeue_frames(lapb);
+ lapb_kick(lapb);
}
break;
return -EINVAL;
}
band = chanctx_conf->def.chan->band;
- sta = sta_info_get(sdata, peer);
+ sta = sta_info_get_bss(sdata, peer);
if (sta) {
qos = test_sta_flag(sta, WLAN_STA_WME);
} else {
* that the scan completed.
* @SCAN_ABORTED: Set for our scan work function when the driver reported
* a scan complete for an aborted scan.
+ * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
+ * cancelled.
*/
enum {
SCAN_SW_SCANNING,
SCAN_ONCHANNEL_SCANNING,
SCAN_COMPLETED,
SCAN_ABORTED,
+ SCAN_HW_CANCELLED,
};
/**
if (started)
ieee80211_start_next_roc(local);
+ else if (list_empty(&local->roc_list))
+ ieee80211_run_deferred_scan(local);
}
out_unlock:
case NL80211_IFTYPE_ADHOC:
if (!bssid)
return 0;
+ if (ether_addr_equal(sdata->vif.addr, hdr->addr2) ||
+ ether_addr_equal(sdata->u.ibss.bssid, hdr->addr2))
+ return 0;
if (ieee80211_is_beacon(hdr->frame_control)) {
return 1;
} else if (!ieee80211_bssid_match(bssid, sdata->u.ibss.bssid)) {
enum ieee80211_band band;
int i, ielen, n_chans;
+ if (test_bit(SCAN_HW_CANCELLED, &local->scanning))
+ return false;
+
do {
if (local->hw_scan_band == IEEE80211_NUM_BANDS)
return false;
if (!local->scan_req)
goto out;
+ /*
+ * We have a scan running and the driver already reported completion,
+ * but the worker hasn't run yet or is stuck on the mutex - mark it as
+ * cancelled.
+ */
+ if (test_bit(SCAN_HW_SCANNING, &local->scanning) &&
+ test_bit(SCAN_COMPLETED, &local->scanning)) {
+ set_bit(SCAN_HW_CANCELLED, &local->scanning);
+ goto out;
+ }
+
if (test_bit(SCAN_HW_SCANNING, &local->scanning)) {
+ /*
+ * Make sure that __ieee80211_scan_completed doesn't trigger a
+ * scan on another band.
+ */
+ set_bit(SCAN_HW_CANCELLED, &local->scanning);
if (local->ops->cancel_hw_scan)
drv_cancel_hw_scan(local,
rcu_dereference_protected(local->scan_sdata,
struct ieee80211_local *local = sta->local;
struct ieee80211_sub_if_data *sdata = sta->sdata;
+ if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)
+ sta->last_rx = jiffies;
+
if (ieee80211_is_data_qos(mgmt->frame_control)) {
struct ieee80211_hdr *hdr = (void *) skb->data;
u8 *qc = ieee80211_get_qos_ctl(hdr);
tx->sta = rcu_dereference(sdata->u.vlan.sta);
if (!tx->sta && sdata->dev->ieee80211_ptr->use_4addr)
return TX_DROP;
- } else if (info->flags & IEEE80211_TX_CTL_INJECTED ||
+ } else if (info->flags & (IEEE80211_TX_CTL_INJECTED |
+ IEEE80211_TX_INTFL_NL80211_FRAME_TX) ||
tx->sdata->control_port_protocol == tx->skb->protocol) {
tx->sta = sta_info_get_bss(sdata, hdr->addr1);
}
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_supported_band *sband;
- int rate, skip, shift;
+ int rate, shift;
u8 i, exrates, *pos;
u32 basic_rates = sdata->vif.bss_conf.basic_rates;
u32 rate_flags;
pos = skb_put(skb, exrates + 2);
*pos++ = WLAN_EID_EXT_SUPP_RATES;
*pos++ = exrates;
- skip = 0;
for (i = 8; i < sband->n_bitrates; i++) {
u8 basic = 0;
if ((rate_flags & sband->bitrates[i].flags)
!= rate_flags)
continue;
- if (skip++ < 8)
- continue;
if (need_basic && basic_rates & BIT(i))
basic = 0x80;
rate = DIV_ROUND_UP(sband->bitrates[i].bitrate,
}
rate = cfg80211_calculate_bitrate(&ri);
+ if (WARN_ONCE(!rate,
+ "Invalid bitrate: flags=0x%x, idx=%d, vht_nss=%d\n",
+ status->flag, status->rate_idx, status->vht_nss))
+ return 0;
/* rewind from end of MPDU */
if (status->flag & RX_FLAG_MACTIME_END)
if (dest && (dest->flags & IP_VS_DEST_F_AVAILABLE)) {
struct ip_vs_cpu_stats *s;
+ struct ip_vs_service *svc;
s = this_cpu_ptr(dest->stats.cpustats);
s->ustats.inpkts++;
s->ustats.inbytes += skb->len;
u64_stats_update_end(&s->syncp);
- s = this_cpu_ptr(dest->svc->stats.cpustats);
+ rcu_read_lock();
+ svc = rcu_dereference(dest->svc);
+ s = this_cpu_ptr(svc->stats.cpustats);
s->ustats.inpkts++;
u64_stats_update_begin(&s->syncp);
s->ustats.inbytes += skb->len;
u64_stats_update_end(&s->syncp);
+ rcu_read_unlock();
s = this_cpu_ptr(ipvs->tot_stats.cpustats);
s->ustats.inpkts++;
if (dest && (dest->flags & IP_VS_DEST_F_AVAILABLE)) {
struct ip_vs_cpu_stats *s;
+ struct ip_vs_service *svc;
s = this_cpu_ptr(dest->stats.cpustats);
s->ustats.outpkts++;
s->ustats.outbytes += skb->len;
u64_stats_update_end(&s->syncp);
- s = this_cpu_ptr(dest->svc->stats.cpustats);
+ rcu_read_lock();
+ svc = rcu_dereference(dest->svc);
+ s = this_cpu_ptr(svc->stats.cpustats);
s->ustats.outpkts++;
u64_stats_update_begin(&s->syncp);
s->ustats.outbytes += skb->len;
u64_stats_update_end(&s->syncp);
+ rcu_read_unlock();
s = this_cpu_ptr(ipvs->tot_stats.cpustats);
s->ustats.outpkts++;
__ip_vs_bind_svc(struct ip_vs_dest *dest, struct ip_vs_service *svc)
{
atomic_inc(&svc->refcnt);
- dest->svc = svc;
+ rcu_assign_pointer(dest->svc, svc);
}
static void ip_vs_service_free(struct ip_vs_service *svc)
kfree(svc);
}
-static void
-__ip_vs_unbind_svc(struct ip_vs_dest *dest)
+static void ip_vs_service_rcu_free(struct rcu_head *head)
{
- struct ip_vs_service *svc = dest->svc;
+ struct ip_vs_service *svc;
+
+ svc = container_of(head, struct ip_vs_service, rcu_head);
+ ip_vs_service_free(svc);
+}
- dest->svc = NULL;
+static void __ip_vs_svc_put(struct ip_vs_service *svc, bool do_delay)
+{
if (atomic_dec_and_test(&svc->refcnt)) {
IP_VS_DBG_BUF(3, "Removing service %u/%s:%u\n",
svc->fwmark,
IP_VS_DBG_ADDR(svc->af, &svc->addr),
ntohs(svc->port));
- ip_vs_service_free(svc);
+ if (do_delay)
+ call_rcu(&svc->rcu_head, ip_vs_service_rcu_free);
+ else
+ ip_vs_service_free(svc);
}
}
IP_VS_DBG_ADDR(svc->af, &dest->addr),
ntohs(dest->port),
atomic_read(&dest->refcnt));
- /* We can not reuse dest while in grace period
- * because conns still can use dest->svc
- */
- if (test_bit(IP_VS_DEST_STATE_REMOVING, &dest->state))
- continue;
if (dest->af == svc->af &&
ip_vs_addr_equal(svc->af, &dest->addr, daddr) &&
dest->port == dport &&
static void ip_vs_dest_free(struct ip_vs_dest *dest)
{
+ struct ip_vs_service *svc = rcu_dereference_protected(dest->svc, 1);
+
__ip_vs_dst_cache_reset(dest);
- __ip_vs_unbind_svc(dest);
+ __ip_vs_svc_put(svc, false);
free_percpu(dest->stats.cpustats);
kfree(dest);
}
struct ip_vs_dest_user_kern *udest, int add)
{
struct netns_ipvs *ipvs = net_ipvs(svc->net);
+ struct ip_vs_service *old_svc;
struct ip_vs_scheduler *sched;
int conn_flags;
atomic_set(&dest->conn_flags, conn_flags);
/* bind the service */
- if (!dest->svc) {
+ old_svc = rcu_dereference_protected(dest->svc, 1);
+ if (!old_svc) {
__ip_vs_bind_svc(dest, svc);
} else {
- if (dest->svc != svc) {
- __ip_vs_unbind_svc(dest);
+ if (old_svc != svc) {
ip_vs_zero_stats(&dest->stats);
__ip_vs_bind_svc(dest, svc);
+ __ip_vs_svc_put(old_svc, true);
}
}
return 0;
}
-static void ip_vs_dest_wait_readers(struct rcu_head *head)
-{
- struct ip_vs_dest *dest = container_of(head, struct ip_vs_dest,
- rcu_head);
-
- /* End of grace period after unlinking */
- clear_bit(IP_VS_DEST_STATE_REMOVING, &dest->state);
-}
-
-
/*
* Delete a destination (must be already unlinked from the service)
*/
*/
ip_vs_rs_unhash(dest);
- if (!cleanup) {
- set_bit(IP_VS_DEST_STATE_REMOVING, &dest->state);
- call_rcu(&dest->rcu_head, ip_vs_dest_wait_readers);
- }
-
spin_lock_bh(&ipvs->dest_trash_lock);
IP_VS_DBG_BUF(3, "Moving dest %s:%u into trash, dest->refcnt=%d\n",
IP_VS_DBG_ADDR(dest->af, &dest->addr), ntohs(dest->port),
atomic_read(&dest->refcnt));
if (list_empty(&ipvs->dest_trash) && !cleanup)
mod_timer(&ipvs->dest_trash_timer,
- jiffies + IP_VS_DEST_TRASH_PERIOD);
+ jiffies + (IP_VS_DEST_TRASH_PERIOD >> 1));
/* dest lives in trash without reference */
list_add(&dest->t_list, &ipvs->dest_trash);
+ dest->idle_start = 0;
spin_unlock_bh(&ipvs->dest_trash_lock);
ip_vs_dest_put(dest);
}
struct net *net = (struct net *) data;
struct netns_ipvs *ipvs = net_ipvs(net);
struct ip_vs_dest *dest, *next;
+ unsigned long now = jiffies;
spin_lock(&ipvs->dest_trash_lock);
list_for_each_entry_safe(dest, next, &ipvs->dest_trash, t_list) {
- /* Skip if dest is in grace period */
- if (test_bit(IP_VS_DEST_STATE_REMOVING, &dest->state))
- continue;
if (atomic_read(&dest->refcnt) > 0)
continue;
+ if (dest->idle_start) {
+ if (time_before(now, dest->idle_start +
+ IP_VS_DEST_TRASH_PERIOD))
+ continue;
+ } else {
+ dest->idle_start = max(1UL, now);
+ continue;
+ }
IP_VS_DBG_BUF(3, "Removing destination %u/%s:%u from trash\n",
dest->vfwmark,
- IP_VS_DBG_ADDR(dest->svc->af, &dest->addr),
+ IP_VS_DBG_ADDR(dest->af, &dest->addr),
ntohs(dest->port));
list_del(&dest->t_list);
ip_vs_dest_free(dest);
}
if (!list_empty(&ipvs->dest_trash))
mod_timer(&ipvs->dest_trash_timer,
- jiffies + IP_VS_DEST_TRASH_PERIOD);
+ jiffies + (IP_VS_DEST_TRASH_PERIOD >> 1));
spin_unlock(&ipvs->dest_trash_lock);
}
return ret;
}
-static void ip_vs_service_rcu_free(struct rcu_head *head)
-{
- struct ip_vs_service *svc;
-
- svc = container_of(head, struct ip_vs_service, rcu_head);
- ip_vs_service_free(svc);
-}
-
/*
* Delete a service from the service list
* - The service must be unlinked, unlocked and not referenced!
/*
* Free the service if nobody refers to it
*/
- if (atomic_dec_and_test(&svc->refcnt)) {
- IP_VS_DBG_BUF(3, "Removing service %u/%s:%u\n",
- svc->fwmark,
- IP_VS_DBG_ADDR(svc->af, &svc->addr),
- ntohs(svc->port));
- call_rcu(&svc->rcu_head, ip_vs_service_rcu_free);
- }
+ __ip_vs_svc_put(svc, true);
/* decrease the module use count */
ip_vs_use_count_dec();
struct ip_vs_cpu_stats __percpu *stats)
{
int i;
+ bool add = false;
for_each_possible_cpu(i) {
struct ip_vs_cpu_stats *s = per_cpu_ptr(stats, i);
unsigned int start;
__u64 inbytes, outbytes;
- if (i) {
+ if (add) {
sum->conns += s->ustats.conns;
sum->inpkts += s->ustats.inpkts;
sum->outpkts += s->ustats.outpkts;
sum->inbytes += inbytes;
sum->outbytes += outbytes;
} else {
+ add = true;
sum->conns = s->ustats.conns;
sum->inpkts = s->ustats.inpkts;
sum->outpkts = s->ustats.outpkts;
struct hlist_node list;
int af; /* address family */
union nf_inet_addr addr; /* destination IP address */
- struct ip_vs_dest __rcu *dest; /* real server (cache) */
+ struct ip_vs_dest *dest; /* real server (cache) */
unsigned long lastuse; /* last used time */
struct rcu_head rcu_head;
};
};
#endif
-static inline void ip_vs_lblc_free(struct ip_vs_lblc_entry *en)
+static void ip_vs_lblc_rcu_free(struct rcu_head *head)
{
- struct ip_vs_dest *dest;
+ struct ip_vs_lblc_entry *en = container_of(head,
+ struct ip_vs_lblc_entry,
+ rcu_head);
- hlist_del_rcu(&en->list);
- /*
- * We don't kfree dest because it is referred either by its service
- * or the trash dest list.
- */
- dest = rcu_dereference_protected(en->dest, 1);
- ip_vs_dest_put(dest);
- kfree_rcu(en, rcu_head);
+ ip_vs_dest_put(en->dest);
+ kfree(en);
}
+static inline void ip_vs_lblc_del(struct ip_vs_lblc_entry *en)
+{
+ hlist_del_rcu(&en->list);
+ call_rcu(&en->rcu_head, ip_vs_lblc_rcu_free);
+}
/*
* Returns hash value for IPVS LBLC entry
struct ip_vs_lblc_entry *en;
en = ip_vs_lblc_get(dest->af, tbl, daddr);
- if (!en) {
- en = kmalloc(sizeof(*en), GFP_ATOMIC);
- if (!en)
- return NULL;
-
- en->af = dest->af;
- ip_vs_addr_copy(dest->af, &en->addr, daddr);
- en->lastuse = jiffies;
+ if (en) {
+ if (en->dest == dest)
+ return en;
+ ip_vs_lblc_del(en);
+ }
+ en = kmalloc(sizeof(*en), GFP_ATOMIC);
+ if (!en)
+ return NULL;
- ip_vs_dest_hold(dest);
- RCU_INIT_POINTER(en->dest, dest);
+ en->af = dest->af;
+ ip_vs_addr_copy(dest->af, &en->addr, daddr);
+ en->lastuse = jiffies;
- ip_vs_lblc_hash(tbl, en);
- } else {
- struct ip_vs_dest *old_dest;
+ ip_vs_dest_hold(dest);
+ en->dest = dest;
- old_dest = rcu_dereference_protected(en->dest, 1);
- if (old_dest != dest) {
- ip_vs_dest_put(old_dest);
- ip_vs_dest_hold(dest);
- /* No ordering constraints for refcnt */
- RCU_INIT_POINTER(en->dest, dest);
- }
- }
+ ip_vs_lblc_hash(tbl, en);
return en;
}
tbl->dead = 1;
for (i=0; i<IP_VS_LBLC_TAB_SIZE; i++) {
hlist_for_each_entry_safe(en, next, &tbl->bucket[i], list) {
- ip_vs_lblc_free(en);
+ ip_vs_lblc_del(en);
atomic_dec(&tbl->entries);
}
}
sysctl_lblc_expiration(svc)))
continue;
- ip_vs_lblc_free(en);
+ ip_vs_lblc_del(en);
atomic_dec(&tbl->entries);
}
spin_unlock(&svc->sched_lock);
if (time_before(now, en->lastuse + ENTRY_TIMEOUT))
continue;
- ip_vs_lblc_free(en);
+ ip_vs_lblc_del(en);
atomic_dec(&tbl->entries);
goal--;
}
continue;
doh = ip_vs_dest_conn_overhead(dest);
- if (loh * atomic_read(&dest->weight) >
- doh * atomic_read(&least->weight)) {
+ if ((__s64)loh * atomic_read(&dest->weight) >
+ (__s64)doh * atomic_read(&least->weight)) {
least = dest;
loh = doh;
}
* free up entries from the trash at any time.
*/
- dest = rcu_dereference(en->dest);
+ dest = en->dest;
if ((dest->flags & IP_VS_DEST_F_AVAILABLE) &&
atomic_read(&dest->weight) > 0 && !is_overloaded(dest, svc))
goto out;
{
unregister_ip_vs_scheduler(&ip_vs_lblc_scheduler);
unregister_pernet_subsys(&ip_vs_lblc_ops);
- synchronize_rcu();
+ rcu_barrier();
}
*/
struct ip_vs_dest_set_elem {
struct list_head list; /* list link */
- struct ip_vs_dest __rcu *dest; /* destination server */
+ struct ip_vs_dest *dest; /* destination server */
struct rcu_head rcu_head;
};
if (check) {
list_for_each_entry(e, &set->list, list) {
- struct ip_vs_dest *d;
-
- d = rcu_dereference_protected(e->dest, 1);
- if (d == dest)
- /* already existed */
+ if (e->dest == dest)
return;
}
}
return;
ip_vs_dest_hold(dest);
- RCU_INIT_POINTER(e->dest, dest);
+ e->dest = dest;
list_add_rcu(&e->list, &set->list);
atomic_inc(&set->size);
set->lastmod = jiffies;
}
+static void ip_vs_lblcr_elem_rcu_free(struct rcu_head *head)
+{
+ struct ip_vs_dest_set_elem *e;
+
+ e = container_of(head, struct ip_vs_dest_set_elem, rcu_head);
+ ip_vs_dest_put(e->dest);
+ kfree(e);
+}
+
static void
ip_vs_dest_set_erase(struct ip_vs_dest_set *set, struct ip_vs_dest *dest)
{
struct ip_vs_dest_set_elem *e;
list_for_each_entry(e, &set->list, list) {
- struct ip_vs_dest *d;
-
- d = rcu_dereference_protected(e->dest, 1);
- if (d == dest) {
+ if (e->dest == dest) {
/* HIT */
atomic_dec(&set->size);
set->lastmod = jiffies;
- ip_vs_dest_put(dest);
list_del_rcu(&e->list);
- kfree_rcu(e, rcu_head);
+ call_rcu(&e->rcu_head, ip_vs_lblcr_elem_rcu_free);
break;
}
}
struct ip_vs_dest_set_elem *e, *ep;
list_for_each_entry_safe(e, ep, &set->list, list) {
- struct ip_vs_dest *d;
-
- d = rcu_dereference_protected(e->dest, 1);
- /*
- * We don't kfree dest because it is referred either
- * by its service or by the trash dest list.
- */
- ip_vs_dest_put(d);
list_del_rcu(&e->list);
- kfree_rcu(e, rcu_head);
+ call_rcu(&e->rcu_head, ip_vs_lblcr_elem_rcu_free);
}
}
struct ip_vs_dest *dest, *least;
int loh, doh;
- if (set == NULL)
- return NULL;
-
/* select the first destination server, whose weight > 0 */
list_for_each_entry_rcu(e, &set->list, list) {
- least = rcu_dereference(e->dest);
+ least = e->dest;
if (least->flags & IP_VS_DEST_F_OVERLOAD)
continue;
/* find the destination with the weighted least load */
nextstage:
list_for_each_entry_continue_rcu(e, &set->list, list) {
- dest = rcu_dereference(e->dest);
+ dest = e->dest;
if (dest->flags & IP_VS_DEST_F_OVERLOAD)
continue;
doh = ip_vs_dest_conn_overhead(dest);
- if ((loh * atomic_read(&dest->weight) >
- doh * atomic_read(&least->weight))
+ if (((__s64)loh * atomic_read(&dest->weight) >
+ (__s64)doh * atomic_read(&least->weight))
&& (dest->flags & IP_VS_DEST_F_AVAILABLE)) {
least = dest;
loh = doh;
/* select the first destination server, whose weight > 0 */
list_for_each_entry(e, &set->list, list) {
- most = rcu_dereference_protected(e->dest, 1);
+ most = e->dest;
if (atomic_read(&most->weight) > 0) {
moh = ip_vs_dest_conn_overhead(most);
goto nextstage;
/* find the destination with the weighted most load */
nextstage:
list_for_each_entry_continue(e, &set->list, list) {
- dest = rcu_dereference_protected(e->dest, 1);
+ dest = e->dest;
doh = ip_vs_dest_conn_overhead(dest);
/* moh/mw < doh/dw ==> moh*dw < doh*mw, where mw,dw>0 */
- if ((moh * atomic_read(&dest->weight) <
- doh * atomic_read(&most->weight))
+ if (((__s64)moh * atomic_read(&dest->weight) <
+ (__s64)doh * atomic_read(&most->weight))
&& (atomic_read(&dest->weight) > 0)) {
most = dest;
moh = doh;
continue;
doh = ip_vs_dest_conn_overhead(dest);
- if (loh * atomic_read(&dest->weight) >
- doh * atomic_read(&least->weight)) {
+ if ((__s64)loh * atomic_read(&dest->weight) >
+ (__s64)doh * atomic_read(&least->weight)) {
least = dest;
loh = doh;
}
{
unregister_ip_vs_scheduler(&ip_vs_lblcr_scheduler);
unregister_pernet_subsys(&ip_vs_lblcr_ops);
- synchronize_rcu();
+ rcu_barrier();
}
#include <net/ip_vs.h>
-static inline unsigned int
+static inline int
ip_vs_nq_dest_overhead(struct ip_vs_dest *dest)
{
/*
struct ip_vs_iphdr *iph)
{
struct ip_vs_dest *dest, *least = NULL;
- unsigned int loh = 0, doh;
+ int loh = 0, doh;
IP_VS_DBG(6, "%s(): Scheduling...\n", __func__);
}
if (!least ||
- (loh * atomic_read(&dest->weight) >
- doh * atomic_read(&least->weight))) {
+ ((__s64)loh * atomic_read(&dest->weight) >
+ (__s64)doh * atomic_read(&least->weight))) {
least = dest;
loh = doh;
}
#include <net/ip_vs.h>
-static inline unsigned int
+static inline int
ip_vs_sed_dest_overhead(struct ip_vs_dest *dest)
{
/*
struct ip_vs_iphdr *iph)
{
struct ip_vs_dest *dest, *least;
- unsigned int loh, doh;
+ int loh, doh;
IP_VS_DBG(6, "%s(): Scheduling...\n", __func__);
if (dest->flags & IP_VS_DEST_F_OVERLOAD)
continue;
doh = ip_vs_sed_dest_overhead(dest);
- if (loh * atomic_read(&dest->weight) >
- doh * atomic_read(&least->weight)) {
+ if ((__s64)loh * atomic_read(&dest->weight) >
+ (__s64)doh * atomic_read(&least->weight)) {
least = dest;
loh = doh;
}
struct ip_vs_iphdr *iph)
{
struct ip_vs_dest *dest, *least;
- unsigned int loh, doh;
+ int loh, doh;
IP_VS_DBG(6, "ip_vs_wlc_schedule(): Scheduling...\n");
if (dest->flags & IP_VS_DEST_F_OVERLOAD)
continue;
doh = ip_vs_dest_conn_overhead(dest);
- if (loh * atomic_read(&dest->weight) >
- doh * atomic_read(&least->weight)) {
+ if ((__s64)loh * atomic_read(&dest->weight) >
+ (__s64)doh * atomic_read(&least->weight)) {
least = dest;
loh = doh;
}
flowi6_to_flowi(&fl1), false)) {
if (!afinfo->route(&init_net, (struct dst_entry **)&rt2,
flowi6_to_flowi(&fl2), false)) {
- if (!memcmp(&rt1->rt6i_gateway, &rt2->rt6i_gateway,
- sizeof(rt1->rt6i_gateway)) &&
+ if (ipv6_addr_equal(rt6_nexthop(rt1),
+ rt6_nexthop(rt2)) &&
rt1->dst.dev == rt2->dst.dev)
ret = 1;
dst_release(&rt2->dst);
int synproxy_net_id;
EXPORT_SYMBOL_GPL(synproxy_net_id);
-void
+bool
synproxy_parse_options(const struct sk_buff *skb, unsigned int doff,
const struct tcphdr *th, struct synproxy_options *opts)
{
u8 buf[40], *ptr;
ptr = skb_header_pointer(skb, doff + sizeof(*th), length, buf);
- BUG_ON(ptr == NULL);
+ if (ptr == NULL)
+ return false;
opts->options = 0;
while (length > 0) {
switch (opcode) {
case TCPOPT_EOL:
- return;
+ return true;
case TCPOPT_NOP:
length--;
continue;
default:
opsize = *ptr++;
if (opsize < 2)
- return;
+ return true;
if (opsize > length)
- return;
+ return true;
switch (opcode) {
case TCPOPT_MSS:
length -= opsize;
}
}
+ return true;
}
EXPORT_SYMBOL_GPL(synproxy_parse_options);
/* remove one skb from head of flow queue */
-static struct sk_buff *fq_dequeue_head(struct fq_flow *flow)
+static struct sk_buff *fq_dequeue_head(struct Qdisc *sch, struct fq_flow *flow)
{
struct sk_buff *skb = flow->head;
flow->head = skb->next;
skb->next = NULL;
flow->qlen--;
+ sch->qstats.backlog -= qdisc_pkt_len(skb);
+ sch->q.qlen--;
}
return skb;
}
struct fq_flow_head *head;
struct sk_buff *skb;
struct fq_flow *f;
+ u32 rate;
- skb = fq_dequeue_head(&q->internal);
+ skb = fq_dequeue_head(sch, &q->internal);
if (skb)
goto out;
fq_check_throttled(q, now);
goto begin;
}
- skb = fq_dequeue_head(f);
+ skb = fq_dequeue_head(sch, f);
if (!skb) {
head->first = f->next;
/* force a pass through old_flows to prevent starvation */
f->time_next_packet = now;
f->credit -= qdisc_pkt_len(skb);
- if (f->credit <= 0 &&
- q->rate_enable &&
- skb->sk && skb->sk->sk_state != TCP_TIME_WAIT) {
- u32 rate = skb->sk->sk_pacing_rate ?: q->flow_default_rate;
+ if (f->credit > 0 || !q->rate_enable)
+ goto out;
- rate = min(rate, q->flow_max_rate);
- if (rate) {
- u64 len = (u64)qdisc_pkt_len(skb) * NSEC_PER_SEC;
+ rate = q->flow_max_rate;
+ if (skb->sk && skb->sk->sk_state != TCP_TIME_WAIT)
+ rate = min(skb->sk->sk_pacing_rate, rate);
- do_div(len, rate);
- /* Since socket rate can change later,
- * clamp the delay to 125 ms.
- * TODO: maybe segment the too big skb, as in commit
- * e43ac79a4bc ("sch_tbf: segment too big GSO packets")
- */
- if (unlikely(len > 125 * NSEC_PER_MSEC)) {
- len = 125 * NSEC_PER_MSEC;
- q->stat_pkts_too_long++;
- }
+ if (rate != ~0U) {
+ u32 plen = max(qdisc_pkt_len(skb), q->quantum);
+ u64 len = (u64)plen * NSEC_PER_SEC;
- f->time_next_packet = now + len;
+ if (likely(rate))
+ do_div(len, rate);
+ /* Since socket rate can change later,
+ * clamp the delay to 125 ms.
+ * TODO: maybe segment the too big skb, as in commit
+ * e43ac79a4bc ("sch_tbf: segment too big GSO packets")
+ */
+ if (unlikely(len > 125 * NSEC_PER_MSEC)) {
+ len = 125 * NSEC_PER_MSEC;
+ q->stat_pkts_too_long++;
}
+
+ f->time_next_packet = now + len;
}
out:
- sch->qstats.backlog -= qdisc_pkt_len(skb);
qdisc_bstats_update(sch, skb);
- sch->q.qlen--;
qdisc_unthrottled(sch);
return skb;
}
static void fq_reset(struct Qdisc *sch)
{
+ struct fq_sched_data *q = qdisc_priv(sch);
+ struct rb_root *root;
struct sk_buff *skb;
+ struct rb_node *p;
+ struct fq_flow *f;
+ unsigned int idx;
- while ((skb = fq_dequeue(sch)) != NULL)
+ while ((skb = fq_dequeue_head(sch, &q->internal)) != NULL)
kfree_skb(skb);
+
+ if (!q->fq_root)
+ return;
+
+ for (idx = 0; idx < (1U << q->fq_trees_log); idx++) {
+ root = &q->fq_root[idx];
+ while ((p = rb_first(root)) != NULL) {
+ f = container_of(p, struct fq_flow, fq_node);
+ rb_erase(p, root);
+
+ while ((skb = fq_dequeue_head(sch, f)) != NULL)
+ kfree_skb(skb);
+
+ kmem_cache_free(fq_flow_cachep, f);
+ }
+ }
+ q->new_flows.first = NULL;
+ q->old_flows.first = NULL;
+ q->delayed = RB_ROOT;
+ q->flows = 0;
+ q->inactive_flows = 0;
+ q->throttled_flows = 0;
}
static void fq_rehash(struct fq_sched_data *q,
q->quantum = nla_get_u32(tb[TCA_FQ_QUANTUM]);
if (tb[TCA_FQ_INITIAL_QUANTUM])
- q->quantum = nla_get_u32(tb[TCA_FQ_INITIAL_QUANTUM]);
+ q->initial_quantum = nla_get_u32(tb[TCA_FQ_INITIAL_QUANTUM]);
if (tb[TCA_FQ_FLOW_DEFAULT_RATE])
q->flow_default_rate = nla_get_u32(tb[TCA_FQ_FLOW_DEFAULT_RATE]);
while (sch->q.qlen > sch->limit) {
struct sk_buff *skb = fq_dequeue(sch);
+ if (!skb)
+ break;
kfree_skb(skb);
drop_count++;
}
static void fq_destroy(struct Qdisc *sch)
{
struct fq_sched_data *q = qdisc_priv(sch);
- struct rb_root *root;
- struct rb_node *p;
- unsigned int idx;
- if (q->fq_root) {
- for (idx = 0; idx < (1U << q->fq_trees_log); idx++) {
- root = &q->fq_root[idx];
- while ((p = rb_first(root)) != NULL) {
- rb_erase(p, root);
- kmem_cache_free(fq_flow_cachep,
- container_of(p, struct fq_flow, fq_node));
- }
- }
- kfree(q->fq_root);
- }
+ fq_reset(sch);
+ kfree(q->fq_root);
qdisc_watchdog_cancel(&q->watchdog);
}
if (opts == NULL)
goto nla_put_failure;
+ /* TCA_FQ_FLOW_DEFAULT_RATE is not used anymore,
+ * do not bother giving its value
+ */
if (nla_put_u32(skb, TCA_FQ_PLIMIT, sch->limit) ||
nla_put_u32(skb, TCA_FQ_FLOW_PLIMIT, q->flow_plimit) ||
nla_put_u32(skb, TCA_FQ_QUANTUM, q->quantum) ||
nla_put_u32(skb, TCA_FQ_INITIAL_QUANTUM, q->initial_quantum) ||
nla_put_u32(skb, TCA_FQ_RATE_ENABLE, q->rate_enable) ||
- nla_put_u32(skb, TCA_FQ_FLOW_DEFAULT_RATE, q->flow_default_rate) ||
nla_put_u32(skb, TCA_FQ_FLOW_MAX_RATE, q->flow_max_rate) ||
nla_put_u32(skb, TCA_FQ_BUCKETS_LOG, q->fq_trees_log))
goto nla_put_failure;
return PSCHED_NS2TICKS(ticks);
}
+static void tfifo_reset(struct Qdisc *sch)
+{
+ struct netem_sched_data *q = qdisc_priv(sch);
+ struct rb_node *p;
+
+ while ((p = rb_first(&q->t_root))) {
+ struct sk_buff *skb = netem_rb_to_skb(p);
+
+ rb_erase(p, &q->t_root);
+ skb->next = NULL;
+ skb->prev = NULL;
+ kfree_skb(skb);
+ }
+}
+
static void tfifo_enqueue(struct sk_buff *nskb, struct Qdisc *sch)
{
struct netem_sched_data *q = qdisc_priv(sch);
skb->next = NULL;
skb->prev = NULL;
len = qdisc_pkt_len(skb);
+ sch->qstats.backlog -= len;
kfree_skb(skb);
}
}
struct netem_sched_data *q = qdisc_priv(sch);
qdisc_reset_queue(sch);
+ tfifo_reset(sch);
if (q->qdisc)
qdisc_reset(q->qdisc);
qdisc_watchdog_cancel(&q->watchdog);
* by CRC32-C as described in <draft-ietf-tsvwg-sctpcsum-02.txt>.
*/
if (!sctp_checksum_disable) {
- if (!(dst->dev->features & NETIF_F_SCTP_CSUM)) {
+ if (!(dst->dev->features & NETIF_F_SCTP_CSUM) ||
+ (dst_xfrm(dst) != NULL) || packet->ipfragok) {
__u32 crc32 = sctp_start_cksum((__u8 *)sh, cksum_buf_len);
/* 3) Put the resultant value into the checksum field in the
unsigned int name_len;
};
+static int copy_msghdr_from_user(struct msghdr *kmsg,
+ struct msghdr __user *umsg)
+{
+ if (copy_from_user(kmsg, umsg, sizeof(struct msghdr)))
+ return -EFAULT;
+ if (kmsg->msg_namelen > sizeof(struct sockaddr_storage))
+ return -EINVAL;
+ return 0;
+}
+
static int ___sys_sendmsg(struct socket *sock, struct msghdr __user *msg,
struct msghdr *msg_sys, unsigned int flags,
struct used_address *used_address)
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
- return -EFAULT;
+ } else {
+ err = copy_msghdr_from_user(msg_sys, msg);
+ if (err)
+ return err;
+ }
if (msg_sys->msg_iovlen > UIO_FASTIOV) {
err = -EMSGSIZE;
if (MSG_CMSG_COMPAT & flags) {
if (get_compat_msghdr(msg_sys, msg_compat))
return -EFAULT;
- } else if (copy_from_user(msg_sys, msg, sizeof(struct msghdr)))
- return -EFAULT;
+ } else {
+ err = copy_msghdr_from_user(msg_sys, msg);
+ if (err)
+ return err;
+ }
if (msg_sys->msg_iovlen > UIO_FASTIOV) {
err = -EMSGSIZE;
/* Allow network administrator to have same access as root. */
if (ns_capable(net->user_ns, CAP_NET_ADMIN) ||
- uid_eq(root_uid, current_uid())) {
+ uid_eq(root_uid, current_euid())) {
int mode = (table->mode >> 6) & 7;
return (mode << 6) | (mode << 3) | mode;
}
/* Allow netns root group to have the same access as the root group */
- if (gid_eq(root_gid, current_gid())) {
+ if (in_egroup_p(root_gid)) {
int mode = (table->mode >> 3) & 7;
return (mode << 3) | mode;
}
return 0;
}
+static void unix_sock_inherit_flags(const struct socket *old,
+ struct socket *new)
+{
+ if (test_bit(SOCK_PASSCRED, &old->flags))
+ set_bit(SOCK_PASSCRED, &new->flags);
+ if (test_bit(SOCK_PASSSEC, &old->flags))
+ set_bit(SOCK_PASSSEC, &new->flags);
+}
+
static int unix_accept(struct socket *sock, struct socket *newsock, int flags)
{
struct sock *sk = sock->sk;
/* attach accepted sock to socket */
unix_state_lock(tsk);
newsock->state = SS_CONNECTED;
+ unix_sock_inherit_flags(sock, newsock);
sock_graft(tsk, newsock);
unix_state_unlock(tsk);
return 0;
rep->udiag_family = AF_UNIX;
rep->udiag_type = sk->sk_type;
rep->udiag_state = sk->sk_state;
+ rep->pad = 0;
rep->udiag_ino = sk_ino;
sock_diag_save_cookie(sk, rep->udiag_cookie);
/* check and set up bitrates */
ieee80211_set_bitrate_flags(wiphy);
-
+ rtnl_lock();
res = device_add(&rdev->wiphy.dev);
- if (res)
- return res;
-
- res = rfkill_register(rdev->rfkill);
if (res) {
- device_del(&rdev->wiphy.dev);
+ rtnl_unlock();
return res;
}
- rtnl_lock();
/* set up regulatory info */
wiphy_regulatory_register(wiphy);
rdev->wiphy.registered = true;
rtnl_unlock();
+
+ res = rfkill_register(rdev->rfkill);
+ if (res) {
+ rfkill_destroy(rdev->rfkill);
+ rdev->rfkill = NULL;
+ wiphy_unregister(&rdev->wiphy);
+ return res;
+ }
+
return 0;
}
EXPORT_SYMBOL(wiphy_register);
rtnl_unlock();
__count == 0; }));
- rfkill_unregister(rdev->rfkill);
+ if (rdev->rfkill)
+ rfkill_unregister(rdev->rfkill);
rtnl_lock();
rdev->wiphy.registered = false;
case NETDEV_PRE_UP:
if (!(wdev->wiphy->interface_modes & BIT(wdev->iftype)))
return notifier_from_errno(-EOPNOTSUPP);
- if (rfkill_blocked(rdev->rfkill))
- return notifier_from_errno(-ERFKILL);
ret = cfg80211_can_add_interface(rdev, wdev->iftype);
if (ret)
return notifier_from_errno(ret);
cfg80211_can_add_interface(struct cfg80211_registered_device *rdev,
enum nl80211_iftype iftype)
{
+ if (rfkill_blocked(rdev->rfkill))
+ return -ERFKILL;
+
return cfg80211_can_change_interface(rdev, NULL, iftype);
}
if (chan->flags & IEEE80211_CHAN_DISABLED)
continue;
wdev->wext.ibss.chandef.chan = chan;
+ wdev->wext.ibss.chandef.center_freq1 =
+ chan->center_freq;
break;
}
if (chan) {
wdev->wext.ibss.chandef.chan = chan;
wdev->wext.ibss.chandef.width = NL80211_CHAN_WIDTH_20_NOHT;
+ wdev->wext.ibss.chandef.center_freq1 = freq;
wdev->wext.ibss.channel_fixed = true;
} else {
/* cfg80211_ibss_wext_join will pick one if needed */
change = true;
}
- if (flags && (*flags & NL80211_MNTR_FLAG_ACTIVE) &&
+ if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
!(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
return -EOPNOTSUPP;
info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
&flags);
- if (!err && (flags & NL80211_MNTR_FLAG_ACTIVE) &&
+ if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
!(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
return -EOPNOTSUPP;
struct ieee80211_radiotap_header *radiotap_header,
int max_length, const struct ieee80211_radiotap_vendor_namespaces *vns)
{
+ /* check the radiotap header can actually be present */
+ if (max_length < sizeof(struct ieee80211_radiotap_header))
+ return -EINVAL;
+
/* Linux only supports version 0 radiotap format */
if (radiotap_header->it_version)
return -EINVAL;
*/
if ((unsigned long)iterator->_arg -
- (unsigned long)iterator->_rtheader >
+ (unsigned long)iterator->_rtheader +
+ sizeof(uint32_t) >
(unsigned long)iterator->_max_length)
return -EINVAL;
}
atomic_inc(&policy->genid);
- del_timer(&policy->polq.hold_timer);
+ if (del_timer(&policy->polq.hold_timer))
+ xfrm_pol_put(policy);
xfrm_queue_purge(&policy->polq.hold_queue);
if (del_timer(&policy->timer))
spin_lock_bh(&pq->hold_queue.lock);
skb_queue_splice_init(&pq->hold_queue, &list);
- del_timer(&pq->hold_timer);
+ if (del_timer(&pq->hold_timer))
+ xfrm_pol_put(old);
spin_unlock_bh(&pq->hold_queue.lock);
if (skb_queue_empty(&list))
spin_lock_bh(&pq->hold_queue.lock);
skb_queue_splice(&list, &pq->hold_queue);
pq->timeout = XFRM_QUEUE_TMO_MIN;
- mod_timer(&pq->hold_timer, jiffies);
+ if (!mod_timer(&pq->hold_timer, jiffies))
+ xfrm_pol_hold(new);
spin_unlock_bh(&pq->hold_queue.lock);
}
spin_lock(&pq->hold_queue.lock);
skb = skb_peek(&pq->hold_queue);
+ if (!skb) {
+ spin_unlock(&pq->hold_queue.lock);
+ goto out;
+ }
dst = skb_dst(skb);
sk = skb->sk;
xfrm_decode_session(skb, &fl, dst->ops->family);
goto purge_queue;
pq->timeout = pq->timeout << 1;
- mod_timer(&pq->hold_timer, jiffies + pq->timeout);
- return;
+ if (!mod_timer(&pq->hold_timer, jiffies + pq->timeout))
+ xfrm_pol_hold(pol);
+ goto out;
}
dst_release(dst);
err = dst_output(skb);
}
+out:
+ xfrm_pol_put(pol);
return;
purge_queue:
pq->timeout = 0;
xfrm_queue_purge(&pq->hold_queue);
+ xfrm_pol_put(pol);
}
static int xdst_queue_output(struct sk_buff *skb)
unsigned long sched_next;
struct dst_entry *dst = skb_dst(skb);
struct xfrm_dst *xdst = (struct xfrm_dst *) dst;
- struct xfrm_policy_queue *pq = &xdst->pols[0]->polq;
+ struct xfrm_policy *pol = xdst->pols[0];
+ struct xfrm_policy_queue *pq = &pol->polq;
if (pq->hold_queue.qlen > XFRM_MAX_QUEUE_LEN) {
kfree_skb(skb);
if (del_timer(&pq->hold_timer)) {
if (time_before(pq->hold_timer.expires, sched_next))
sched_next = pq->hold_timer.expires;
+ xfrm_pol_put(pol);
}
__skb_queue_tail(&pq->hold_queue, skb);
- mod_timer(&pq->hold_timer, sched_next);
+ if (!mod_timer(&pq->hold_timer, sched_next))
+ xfrm_pol_hold(pol);
spin_unlock_bh(&pq->hold_queue.lock);
switch (event) {
case XFRM_REPLAY_UPDATE:
- if (x->replay_maxdiff &&
- (x->replay.seq - x->preplay.seq < x->replay_maxdiff) &&
- (x->replay.oseq - x->preplay.oseq < x->replay_maxdiff)) {
+ if (!x->replay_maxdiff ||
+ ((x->replay.seq - x->preplay.seq < x->replay_maxdiff) &&
+ (x->replay.oseq - x->preplay.oseq < x->replay_maxdiff))) {
if (x->xflags & XFRM_TIME_DEFER)
event = XFRM_REPLAY_TIMEOUT;
else
return 0;
diff = x->replay.seq - seq;
- if (diff >= min_t(unsigned int, x->props.replay_window,
- sizeof(x->replay.bitmap) * 8)) {
+ if (diff >= x->props.replay_window) {
x->stats.replay_window++;
goto err;
}
switch (event) {
case XFRM_REPLAY_UPDATE:
- if (x->replay_maxdiff &&
- (replay_esn->seq - preplay_esn->seq < x->replay_maxdiff) &&
- (replay_esn->oseq - preplay_esn->oseq < x->replay_maxdiff)) {
+ if (!x->replay_maxdiff ||
+ ((replay_esn->seq - preplay_esn->seq < x->replay_maxdiff) &&
+ (replay_esn->oseq - preplay_esn->oseq
+ < x->replay_maxdiff))) {
if (x->xflags & XFRM_TIME_DEFER)
event = XFRM_REPLAY_TIMEOUT;
else
switch (event) {
case XFRM_REPLAY_UPDATE:
- if (!x->replay_maxdiff)
- break;
-
- if (replay_esn->seq_hi == preplay_esn->seq_hi)
- seq_diff = replay_esn->seq - preplay_esn->seq;
- else
- seq_diff = ~preplay_esn->seq + replay_esn->seq + 1;
-
- if (replay_esn->oseq_hi == preplay_esn->oseq_hi)
- oseq_diff = replay_esn->oseq - preplay_esn->oseq;
- else
- oseq_diff = ~preplay_esn->oseq + replay_esn->oseq + 1;
-
- if (seq_diff < x->replay_maxdiff &&
- oseq_diff < x->replay_maxdiff) {
+ if (x->replay_maxdiff) {
+ if (replay_esn->seq_hi == preplay_esn->seq_hi)
+ seq_diff = replay_esn->seq - preplay_esn->seq;
+ else
+ seq_diff = ~preplay_esn->seq + replay_esn->seq
+ + 1;
- if (x->xflags & XFRM_TIME_DEFER)
- event = XFRM_REPLAY_TIMEOUT;
+ if (replay_esn->oseq_hi == preplay_esn->oseq_hi)
+ oseq_diff = replay_esn->oseq
+ - preplay_esn->oseq;
else
- return;
+ oseq_diff = ~preplay_esn->oseq
+ + replay_esn->oseq + 1;
+
+ if (seq_diff >= x->replay_maxdiff ||
+ oseq_diff >= x->replay_maxdiff)
+ break;
}
+ if (x->xflags & XFRM_TIME_DEFER)
+ event = XFRM_REPLAY_TIMEOUT;
+ else
+ return;
+
break;
case XFRM_REPLAY_TIMEOUT:
memcpy(&x->sel, &p->sel, sizeof(x->sel));
memcpy(&x->lft, &p->lft, sizeof(x->lft));
x->props.mode = p->mode;
- x->props.replay_window = p->replay_window;
+ x->props.replay_window = min_t(unsigned int, p->replay_window,
+ sizeof(x->replay.bitmap) * 8);
x->props.reqid = p->reqid;
x->props.family = p->family;
memcpy(&x->props.saddr, &p->saddr, sizeof(x->props.saddr));
if (x->km.state != XFRM_STATE_VALID)
goto out;
- err = xfrm_replay_verify_len(x->replay_esn, rp);
+ err = xfrm_replay_verify_len(x->replay_esn, re);
if (err)
goto out;
# check for new externs in .h files.
if ($realfile =~ /\.h$/ &&
$line =~ /^\+\s*(extern\s+)$Type\s*$Ident\s*\(/s) {
- if (WARN("AVOID_EXTERNS",
- "extern prototypes should be avoided in .h files\n" . $herecurr) &&
+ if (CHK("AVOID_EXTERNS",
+ "extern prototypes should be avoided in .h files\n" . $herecurr) &&
$fix) {
$fixed[$linenr - 1] =~ s/(.*)\bextern\b\s*(.*)/$1$2/;
}
/* check if the next ns is a sibling, parent, gp, .. */
parent = ns->parent;
- while (parent) {
+ while (ns != root) {
mutex_unlock(&ns->lock);
next = list_entry_next(ns, base.list);
if (!list_entry_is_head(next, &parent->sub_ns, base.list)) {
mutex_lock(&next->lock);
return next;
}
- if (parent == root)
- return NULL;
ns = parent;
parent = parent->parent;
}
* it should be.
*/
-#include <linux/crypto.h>
+#include <crypto/hash.h>
#include "include/apparmor.h"
#include "include/crypto.h"
static unsigned int apparmor_hash_size;
-static struct crypto_hash *apparmor_tfm;
+static struct crypto_shash *apparmor_tfm;
unsigned int aa_hash_size(void)
{
int aa_calc_profile_hash(struct aa_profile *profile, u32 version, void *start,
size_t len)
{
- struct scatterlist sg[2];
- struct hash_desc desc = {
- .tfm = apparmor_tfm,
- .flags = 0
- };
+ struct {
+ struct shash_desc shash;
+ char ctx[crypto_shash_descsize(apparmor_tfm)];
+ } desc;
int error = -ENOMEM;
u32 le32_version = cpu_to_le32(version);
if (!apparmor_tfm)
return 0;
- sg_init_table(sg, 2);
- sg_set_buf(&sg[0], &le32_version, 4);
- sg_set_buf(&sg[1], (u8 *) start, len);
-
profile->hash = kzalloc(apparmor_hash_size, GFP_KERNEL);
if (!profile->hash)
goto fail;
- error = crypto_hash_init(&desc);
+ desc.shash.tfm = apparmor_tfm;
+ desc.shash.flags = 0;
+
+ error = crypto_shash_init(&desc.shash);
if (error)
goto fail;
- error = crypto_hash_update(&desc, &sg[0], 4);
+ error = crypto_shash_update(&desc.shash, (u8 *) &le32_version, 4);
if (error)
goto fail;
- error = crypto_hash_update(&desc, &sg[1], len);
+ error = crypto_shash_update(&desc.shash, (u8 *) start, len);
if (error)
goto fail;
- error = crypto_hash_final(&desc, profile->hash);
+ error = crypto_shash_final(&desc.shash, profile->hash);
if (error)
goto fail;
static int __init init_profile_hash(void)
{
- struct crypto_hash *tfm;
+ struct crypto_shash *tfm;
if (!apparmor_initialized)
return 0;
- tfm = crypto_alloc_hash("sha1", 0, CRYPTO_ALG_ASYNC);
+ tfm = crypto_alloc_shash("sha1", 0, CRYPTO_ALG_ASYNC);
if (IS_ERR(tfm)) {
int error = PTR_ERR(tfm);
AA_ERROR("failed to setup profile sha1 hashing: %d\n", error);
return error;
}
apparmor_tfm = tfm;
- apparmor_hash_size = crypto_hash_digestsize(apparmor_tfm);
+ apparmor_hash_size = crypto_shash_digestsize(apparmor_tfm);
aa_info_message("AppArmor sha1 policy hashing enabled");
static inline void __aa_update_replacedby(struct aa_profile *orig,
struct aa_profile *new)
{
- struct aa_profile *tmp = rcu_dereference(orig->replacedby->profile);
+ struct aa_profile *tmp;
+ tmp = rcu_dereference_protected(orig->replacedby->profile,
+ mutex_is_locked(&orig->ns->lock));
rcu_assign_pointer(orig->replacedby->profile, aa_get_profile(new));
orig->flags |= PFLAG_INVALID;
aa_put_profile(tmp);
static void free_replacedby(struct aa_replacedby *r)
{
if (r) {
- aa_put_profile(rcu_dereference(r->profile));
+ /* r->profile will not be updated any more as r is dead */
+ aa_put_profile(rcu_dereference_protected(r->profile, true));
kzfree(r);
}
}
aa_put_dfa(profile->policy.dfa);
aa_put_replacedby(profile->replacedby);
+ kzfree(profile->hash);
kzfree(profile);
}
* @tclass: target security class
* @requested: requested permissions, interpreted based on @tclass
* @auditdata: auxiliary audit data
- * @flags: VFS walk flags
*
* Check the AVC to determine whether the @requested permissions are granted
* for the SID pair (@ssid, @tsid), interpreting the permissions
* permissions are granted, -%EACCES if any permissions are denied, or
* another -errno upon other errors.
*/
-int avc_has_perm_flags(u32 ssid, u32 tsid, u16 tclass,
- u32 requested, struct common_audit_data *auditdata,
- unsigned flags)
+int avc_has_perm(u32 ssid, u32 tsid, u16 tclass,
+ u32 requested, struct common_audit_data *auditdata)
{
struct av_decision avd;
int rc, rc2;
rc = avc_has_perm_noaudit(ssid, tsid, tclass, requested, 0, &avd);
- rc2 = avc_audit(ssid, tsid, tclass, requested, &avd, rc, auditdata,
- flags);
+ rc2 = avc_audit(ssid, tsid, tclass, requested, &avd, rc, auditdata);
if (rc2)
return rc2;
return rc;
rc = avc_has_perm_noaudit(sid, sid, sclass, av, 0, &avd);
if (audit == SECURITY_CAP_AUDIT) {
- int rc2 = avc_audit(sid, sid, sclass, av, &avd, rc, &ad, 0);
+ int rc2 = avc_audit(sid, sid, sclass, av, &avd, rc, &ad);
if (rc2)
return rc2;
}
static int inode_has_perm(const struct cred *cred,
struct inode *inode,
u32 perms,
- struct common_audit_data *adp,
- unsigned flags)
+ struct common_audit_data *adp)
{
struct inode_security_struct *isec;
u32 sid;
sid = cred_sid(cred);
isec = inode->i_security;
- return avc_has_perm_flags(sid, isec->sid, isec->sclass, perms, adp, flags);
+ return avc_has_perm(sid, isec->sid, isec->sclass, perms, adp);
}
/* Same as inode_has_perm, but pass explicit audit data containing
ad.type = LSM_AUDIT_DATA_DENTRY;
ad.u.dentry = dentry;
- return inode_has_perm(cred, inode, av, &ad, 0);
+ return inode_has_perm(cred, inode, av, &ad);
}
/* Same as inode_has_perm, but pass explicit audit data containing
ad.type = LSM_AUDIT_DATA_PATH;
ad.u.path = *path;
- return inode_has_perm(cred, inode, av, &ad, 0);
+ return inode_has_perm(cred, inode, av, &ad);
}
/* Same as path_has_perm, but uses the inode from the file struct. */
ad.type = LSM_AUDIT_DATA_PATH;
ad.u.path = file->f_path;
- return inode_has_perm(cred, file_inode(file), av, &ad, 0);
+ return inode_has_perm(cred, file_inode(file), av, &ad);
}
/* Check whether a task can use an open file descriptor to
/* av is zero if only checking access to the descriptor. */
rc = 0;
if (av)
- rc = inode_has_perm(cred, inode, av, &ad, 0);
+ rc = inode_has_perm(cred, inode, av, &ad);
out:
return rc;
u16 tclass, u32 requested,
struct av_decision *avd,
int result,
- struct common_audit_data *a, unsigned flags)
+ struct common_audit_data *a)
{
u32 audited, denied;
audited = avc_audit_required(requested, avd, result, 0, &denied);
return 0;
return slow_avc_audit(ssid, tsid, tclass,
requested, audited, denied,
- a, flags);
+ a, 0);
}
#define AVC_STRICT 1 /* Ignore permissive mode. */
unsigned flags,
struct av_decision *avd);
-int avc_has_perm_flags(u32 ssid, u32 tsid,
- u16 tclass, u32 requested,
- struct common_audit_data *auditdata,
- unsigned);
-
-static inline int avc_has_perm(u32 ssid, u32 tsid,
- u16 tclass, u32 requested,
- struct common_audit_data *auditdata)
-{
- return avc_has_perm_flags(ssid, tsid, tclass, requested, auditdata, 0);
-}
+int avc_has_perm(u32 ssid, u32 tsid,
+ u16 tclass, u32 requested,
+ struct common_audit_data *auditdata);
u32 avc_policy_seqno(void);
static int snd_compr_free(struct inode *inode, struct file *f)
{
struct snd_compr_file *data = f->private_data;
+ struct snd_compr_runtime *runtime = data->stream.runtime;
+
+ switch (runtime->state) {
+ case SNDRV_PCM_STATE_RUNNING:
+ case SNDRV_PCM_STATE_DRAINING:
+ case SNDRV_PCM_STATE_PAUSED:
+ data->stream.ops->trigger(&data->stream, SNDRV_PCM_TRIGGER_STOP);
+ break;
+ default:
+ break;
+ }
+
data->stream.ops->free(&data->stream);
kfree(data->stream.runtime->buffer);
kfree(data->stream.runtime);
struct snd_compr *compr;
compr = device->device_data;
- snd_unregister_device(compr->direction, compr->card, compr->device);
+ snd_unregister_device(SNDRV_DEVICE_TYPE_COMPRESS, compr->card,
+ compr->device);
return 0;
}
{ 0x54524106, 0xffffffff, "TR28026", NULL, NULL },
{ 0x54524108, 0xffffffff, "TR28028", patch_tritech_tr28028, NULL }, // added by xin jin [07/09/99]
{ 0x54524123, 0xffffffff, "TR28602", NULL, NULL }, // only guess --jk [TR28023 = eMicro EM28023 (new CT1297)]
+{ 0x54584e03, 0xffffffff, "TLV320AIC27", NULL, NULL },
{ 0x54584e20, 0xffffffff, "TLC320AD9xC", NULL, NULL },
{ 0x56494161, 0xffffffff, "VIA1612A", NULL, NULL }, // modified ICE1232 with S/PDIF
{ 0x56494170, 0xffffffff, "VIA1617A", patch_vt1617a, NULL }, // modified VT1616 with S/PDIF
if (!multi)
err = create_single_cap_vol_ctl(codec, n, vol, sw,
inv_dmic);
- else if (!multi_cap_vol)
+ else if (!multi_cap_vol && !inv_dmic)
err = create_bind_cap_vol_ctl(codec, n, vol, sw);
else
err = create_multi_cap_vol_ctl(codec);
/* 0x0009 - 0x0014 -> 12 test regs */
/* 0x0015 - visibility reg */
+/* Cirrus Logic CS4208 */
+#define CS4208_VENDOR_NID 0x24
+
/*
* Cirrus Logic CS4210
*
{} /* terminator */
};
+static const struct hda_verb cs4208_coef_init_verbs[] = {
+ {0x01, AC_VERB_SET_POWER_STATE, 0x00}, /* AFG: D0 */
+ {0x24, AC_VERB_SET_PROC_STATE, 0x01}, /* VPW: processing on */
+ {0x24, AC_VERB_SET_COEF_INDEX, 0x0033},
+ {0x24, AC_VERB_SET_PROC_COEF, 0x0001}, /* A1 ICS */
+ {0x24, AC_VERB_SET_COEF_INDEX, 0x0034},
+ {0x24, AC_VERB_SET_PROC_COEF, 0x1C01}, /* A1 Enable, A Thresh = 300mV */
+ {} /* terminator */
+};
+
/* Errata: CS4207 rev C0/C1/C2 Silicon
*
* http://www.cirrus.com/en/pubs/errata/ER880C3.pdf
/* init_verb sequence for C0/C1/C2 errata*/
snd_hda_sequence_write(codec, cs_errata_init_verbs);
snd_hda_sequence_write(codec, cs_coef_init_verbs);
+ } else if (spec->vendor_nid == CS4208_VENDOR_NID) {
+ snd_hda_sequence_write(codec, cs4208_coef_init_verbs);
}
snd_hda_gen_init(codec);
{} /* terminator */
};
+static const struct hda_pintbl mba6_pincfgs[] = {
+ { 0x10, 0x032120f0 }, /* HP */
+ { 0x11, 0x500000f0 },
+ { 0x12, 0x90100010 }, /* Speaker */
+ { 0x13, 0x500000f0 },
+ { 0x14, 0x500000f0 },
+ { 0x15, 0x770000f0 },
+ { 0x16, 0x770000f0 },
+ { 0x17, 0x430000f0 },
+ { 0x18, 0x43ab9030 }, /* Mic */
+ { 0x19, 0x770000f0 },
+ { 0x1a, 0x770000f0 },
+ { 0x1b, 0x770000f0 },
+ { 0x1c, 0x90a00090 },
+ { 0x1d, 0x500000f0 },
+ { 0x1e, 0x500000f0 },
+ { 0x1f, 0x500000f0 },
+ { 0x20, 0x500000f0 },
+ { 0x21, 0x430000f0 },
+ { 0x22, 0x430000f0 },
+ {} /* terminator */
+};
+
static void cs420x_fixup_gpio_13(struct hda_codec *codec,
const struct hda_fixup *fix, int action)
{
/*
* CS4208 support:
- * Its layout is no longer compatible with CS4206/CS4207, and the generic
- * parser seems working fairly well, except for trivial fixups.
+ * Its layout is no longer compatible with CS4206/CS4207
*/
enum {
+ CS4208_MBA6,
CS4208_GPIO0,
};
static const struct hda_model_fixup cs4208_models[] = {
{ .id = CS4208_GPIO0, .name = "gpio0" },
+ { .id = CS4208_MBA6, .name = "mba6" },
{}
};
static const struct snd_pci_quirk cs4208_fixup_tbl[] = {
/* codec SSID */
- SND_PCI_QUIRK(0x106b, 0x7100, "MacBookPro 6,1", CS4208_GPIO0),
- SND_PCI_QUIRK(0x106b, 0x7200, "MacBookPro 6,2", CS4208_GPIO0),
+ SND_PCI_QUIRK(0x106b, 0x7100, "MacBookAir 6,1", CS4208_MBA6),
+ SND_PCI_QUIRK(0x106b, 0x7200, "MacBookAir 6,2", CS4208_MBA6),
{} /* terminator */
};
}
static const struct hda_fixup cs4208_fixups[] = {
+ [CS4208_MBA6] = {
+ .type = HDA_FIXUP_PINS,
+ .v.pins = mba6_pincfgs,
+ .chained = true,
+ .chain_id = CS4208_GPIO0,
+ },
[CS4208_GPIO0] = {
.type = HDA_FIXUP_FUNC,
.v.func = cs4208_fixup_gpio0,
},
};
+/* correct the 0dB offset of input pins */
+static void cs4208_fix_amp_caps(struct hda_codec *codec, hda_nid_t adc)
+{
+ unsigned int caps;
+
+ caps = query_amp_caps(codec, adc, HDA_INPUT);
+ caps &= ~(AC_AMPCAP_OFFSET);
+ caps |= 0x02;
+ snd_hda_override_amp_caps(codec, adc, HDA_INPUT, caps);
+}
+
static int patch_cs4208(struct hda_codec *codec)
{
struct cs_spec *spec;
int err;
- spec = cs_alloc_spec(codec, 0); /* no specific w/a */
+ spec = cs_alloc_spec(codec, CS4208_VENDOR_NID);
if (!spec)
return -ENOMEM;
cs4208_fixups);
snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_PRE_PROBE);
+ snd_hda_override_wcaps(codec, 0x18,
+ get_wcaps(codec, 0x18) | AC_WCAP_STEREO);
+ cs4208_fix_amp_caps(codec, 0x18);
+ cs4208_fix_amp_caps(codec, 0x1b);
+ cs4208_fix_amp_caps(codec, 0x1c);
+
err = cs_parse_auto_config(codec);
if (err < 0)
goto error;
CXT_FIXUP_INC_MIC_BOOST,
CXT_FIXUP_HEADPHONE_MIC_PIN,
CXT_FIXUP_HEADPHONE_MIC,
+ CXT_FIXUP_GPIO1,
};
static void cxt_fixup_stereo_dmic(struct hda_codec *codec,
.type = HDA_FIXUP_FUNC,
.v.func = cxt_fixup_headphone_mic,
},
+ [CXT_FIXUP_GPIO1] = {
+ .type = HDA_FIXUP_VERBS,
+ .v.verbs = (const struct hda_verb[]) {
+ { 0x01, AC_VERB_SET_GPIO_MASK, 0x01 },
+ { 0x01, AC_VERB_SET_GPIO_DIRECTION, 0x01 },
+ { 0x01, AC_VERB_SET_GPIO_DATA, 0x01 },
+ { }
+ },
+ },
};
static const struct snd_pci_quirk cxt5051_fixups[] = {
static const struct snd_pci_quirk cxt5066_fixups[] = {
SND_PCI_QUIRK(0x1025, 0x0543, "Acer Aspire One 522", CXT_FIXUP_STEREO_DMIC),
+ SND_PCI_QUIRK(0x1025, 0x054c, "Acer Aspire 3830TG", CXT_FIXUP_GPIO1),
SND_PCI_QUIRK(0x1043, 0x138d, "Asus", CXT_FIXUP_HEADPHONE_MIC_PIN),
SND_PCI_QUIRK(0x17aa, 0x20f2, "Lenovo T400", CXT_PINCFG_LENOVO_TP410),
SND_PCI_QUIRK(0x17aa, 0x215e, "Lenovo T410", CXT_PINCFG_LENOVO_TP410),
return;
}
+ /*
+ * always configure channel mapping, it may have been changed by the
+ * user in the meantime
+ */
+ hdmi_setup_channel_mapping(codec, pin_nid, non_pcm, ca,
+ channels, per_pin->chmap,
+ per_pin->chmap_set);
+
/*
* sizeof(ai) is used instead of sizeof(*hdmi_ai) or
* sizeof(*dp_ai) to avoid partial match/update problems when
"pin=%d channels=%d\n",
pin_nid,
channels);
- hdmi_setup_channel_mapping(codec, pin_nid, non_pcm, ca,
- channels, per_pin->chmap,
- per_pin->chmap_set);
hdmi_stop_infoframe_trans(codec, pin_nid);
hdmi_fill_audio_infoframe(codec, pin_nid,
ai.bytes, sizeof(ai));
hdmi_start_infoframe_trans(codec, pin_nid);
- } else {
- /* For non-pcm audio switch, setup new channel mapping
- * accordingly */
- if (per_pin->non_pcm != non_pcm)
- hdmi_setup_channel_mapping(codec, pin_nid, non_pcm, ca,
- channels, per_pin->chmap,
- per_pin->chmap_set);
}
per_pin->non_pcm = non_pcm;
}
static void haswell_config_cvts(struct hda_codec *codec,
- int pin_id, int mux_id)
+ hda_nid_t pin_nid, int mux_idx)
{
struct hdmi_spec *spec = codec->spec;
- struct hdmi_spec_per_pin *per_pin;
- int pin_idx, mux_idx;
- int curr;
- int err;
+ hda_nid_t nid, end_nid;
+ int cvt_idx, curr;
+ struct hdmi_spec_per_cvt *per_cvt;
- for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
- per_pin = get_pin(spec, pin_idx);
+ /* configure all pins, including "no physical connection" ones */
+ end_nid = codec->start_nid + codec->num_nodes;
+ for (nid = codec->start_nid; nid < end_nid; nid++) {
+ unsigned int wid_caps = get_wcaps(codec, nid);
+ unsigned int wid_type = get_wcaps_type(wid_caps);
+
+ if (wid_type != AC_WID_PIN)
+ continue;
- if (pin_idx == pin_id)
+ if (nid == pin_nid)
continue;
- curr = snd_hda_codec_read(codec, per_pin->pin_nid, 0,
+ curr = snd_hda_codec_read(codec, nid, 0,
AC_VERB_GET_CONNECT_SEL, 0);
+ if (curr != mux_idx)
+ continue;
- /* Choose another unused converter */
- if (curr == mux_id) {
- err = hdmi_choose_cvt(codec, pin_idx, NULL, &mux_idx);
- if (err < 0)
- return;
- snd_printdd("HDMI: choose converter %d for pin %d\n", mux_idx, pin_idx);
- snd_hda_codec_write_cache(codec, per_pin->pin_nid, 0,
+ /* choose an unassigned converter. The conveters in the
+ * connection list are in the same order as in the codec.
+ */
+ for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++) {
+ per_cvt = get_cvt(spec, cvt_idx);
+ if (!per_cvt->assigned) {
+ snd_printdd("choose cvt %d for pin nid %d\n",
+ cvt_idx, nid);
+ snd_hda_codec_write_cache(codec, nid, 0,
AC_VERB_SET_CONNECT_SEL,
- mux_idx);
+ cvt_idx);
+ break;
+ }
}
}
}
/* configure unused pins to choose other converters */
if (is_haswell(codec))
- haswell_config_cvts(codec, pin_idx, mux_idx);
+ haswell_config_cvts(codec, per_pin->pin_nid, mux_idx);
snd_hda_spdif_ctls_assign(codec, pin_idx, per_cvt->cvt_nid);
alc_write_coef_idx(codec, 0x1e, coef | 0x80);
}
+static void alc269_fixup_headset_mic(struct hda_codec *codec,
+ const struct hda_fixup *fix, int action)
+{
+ struct alc_spec *spec = codec->spec;
+
+ if (action == HDA_FIXUP_ACT_PRE_PROBE)
+ spec->parse_flags |= HDA_PINCFG_HEADSET_MIC;
+}
+
static void alc271_fixup_dmic(struct hda_codec *codec,
const struct hda_fixup *fix, int action)
{
/* Set to manual mode */
val = alc_read_coef_idx(codec, 0x06);
alc_write_coef_idx(codec, 0x06, val & ~0x000c);
+ /* Enable Line1 input control by verb */
+ val = alc_read_coef_idx(codec, 0x1a);
+ alc_write_coef_idx(codec, 0x1a, val | (1 << 4));
break;
}
}
}
}
+static void alc290_fixup_mono_speakers(struct hda_codec *codec,
+ const struct hda_fixup *fix, int action)
+{
+ if (action == HDA_FIXUP_ACT_PRE_PROBE)
+ /* Remove DAC node 0x03, as it seems to be
+ giving mono output */
+ snd_hda_override_wcaps(codec, 0x03, 0);
+}
+
enum {
ALC269_FIXUP_SONY_VAIO,
ALC275_FIXUP_SONY_VAIO_GPIO2,
ALC271_FIXUP_DMIC,
ALC269_FIXUP_PCM_44K,
ALC269_FIXUP_STEREO_DMIC,
+ ALC269_FIXUP_HEADSET_MIC,
ALC269_FIXUP_QUANTA_MUTE,
ALC269_FIXUP_LIFEBOOK,
ALC269_FIXUP_AMIC,
ALC269_FIXUP_HP_GPIO_LED,
ALC269_FIXUP_INV_DMIC,
ALC269_FIXUP_LENOVO_DOCK,
+ ALC286_FIXUP_SONY_MIC_NO_PRESENCE,
ALC269_FIXUP_PINCFG_NO_HP_TO_LINEOUT,
ALC269_FIXUP_DELL1_MIC_NO_PRESENCE,
ALC269_FIXUP_DELL2_MIC_NO_PRESENCE,
+ ALC269_FIXUP_DELL3_MIC_NO_PRESENCE,
ALC269_FIXUP_HEADSET_MODE,
ALC269_FIXUP_HEADSET_MODE_NO_HP_MIC,
ALC269_FIXUP_ASUS_X101_FUNC,
ALC269VB_FIXUP_ORDISSIMO_EVE2,
ALC283_FIXUP_CHROME_BOOK,
ALC282_FIXUP_ASUS_TX300,
+ ALC283_FIXUP_INT_MIC,
+ ALC290_FIXUP_MONO_SPEAKERS,
};
static const struct hda_fixup alc269_fixups[] = {
.type = HDA_FIXUP_FUNC,
.v.func = alc269_fixup_stereo_dmic,
},
+ [ALC269_FIXUP_HEADSET_MIC] = {
+ .type = HDA_FIXUP_FUNC,
+ .v.func = alc269_fixup_headset_mic,
+ },
[ALC269_FIXUP_QUANTA_MUTE] = {
.type = HDA_FIXUP_FUNC,
.v.func = alc269_fixup_quanta_mute,
.chained = true,
.chain_id = ALC269_FIXUP_HEADSET_MODE_NO_HP_MIC
},
+ [ALC269_FIXUP_DELL3_MIC_NO_PRESENCE] = {
+ .type = HDA_FIXUP_PINS,
+ .v.pins = (const struct hda_pintbl[]) {
+ { 0x1a, 0x01a1913c }, /* use as headset mic, without its own jack detect */
+ { }
+ },
+ .chained = true,
+ .chain_id = ALC269_FIXUP_HEADSET_MODE_NO_HP_MIC
+ },
[ALC269_FIXUP_HEADSET_MODE] = {
.type = HDA_FIXUP_FUNC,
.v.func = alc_fixup_headset_mode,
.type = HDA_FIXUP_FUNC,
.v.func = alc_fixup_headset_mode_no_hp_mic,
},
+ [ALC286_FIXUP_SONY_MIC_NO_PRESENCE] = {
+ .type = HDA_FIXUP_PINS,
+ .v.pins = (const struct hda_pintbl[]) {
+ { 0x18, 0x01a1913c }, /* use as headset mic, without its own jack detect */
+ { }
+ },
+ .chained = true,
+ .chain_id = ALC269_FIXUP_HEADSET_MIC
+ },
[ALC269_FIXUP_ASUS_X101_FUNC] = {
.type = HDA_FIXUP_FUNC,
.v.func = alc269_fixup_x101_headset_mic,
.type = HDA_FIXUP_FUNC,
.v.func = alc282_fixup_asus_tx300,
},
+ [ALC283_FIXUP_INT_MIC] = {
+ .type = HDA_FIXUP_VERBS,
+ .v.verbs = (const struct hda_verb[]) {
+ {0x20, AC_VERB_SET_COEF_INDEX, 0x1a},
+ {0x20, AC_VERB_SET_PROC_COEF, 0x0011},
+ { }
+ },
+ .chained = true,
+ .chain_id = ALC269_FIXUP_LIMIT_INT_MIC_BOOST
+ },
+ [ALC290_FIXUP_MONO_SPEAKERS] = {
+ .type = HDA_FIXUP_FUNC,
+ .v.func = alc290_fixup_mono_speakers,
+ .chained = true,
+ .chain_id = ALC269_FIXUP_DELL3_MIC_NO_PRESENCE,
+ },
};
static const struct snd_pci_quirk alc269_fixup_tbl[] = {
SND_PCI_QUIRK(0x1028, 0x0608, "Dell", ALC269_FIXUP_DELL1_MIC_NO_PRESENCE),
SND_PCI_QUIRK(0x1028, 0x0609, "Dell", ALC269_FIXUP_DELL1_MIC_NO_PRESENCE),
SND_PCI_QUIRK(0x1028, 0x0613, "Dell", ALC269_FIXUP_DELL1_MIC_NO_PRESENCE),
+ SND_PCI_QUIRK(0x1028, 0x0616, "Dell Vostro 5470", ALC290_FIXUP_MONO_SPEAKERS),
SND_PCI_QUIRK(0x1028, 0x15cc, "Dell X5 Precision", ALC269_FIXUP_DELL2_MIC_NO_PRESENCE),
SND_PCI_QUIRK(0x1028, 0x15cd, "Dell X5 Precision", ALC269_FIXUP_DELL2_MIC_NO_PRESENCE),
SND_PCI_QUIRK(0x103c, 0x1586, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC2),
SND_PCI_QUIRK(0x1043, 0x8398, "ASUS P1005", ALC269_FIXUP_STEREO_DMIC),
SND_PCI_QUIRK(0x1043, 0x83ce, "ASUS P1005", ALC269_FIXUP_STEREO_DMIC),
SND_PCI_QUIRK(0x1043, 0x8516, "ASUS X101CH", ALC269_FIXUP_ASUS_X101),
+ SND_PCI_QUIRK(0x104d, 0x90b6, "Sony VAIO Pro 13", ALC286_FIXUP_SONY_MIC_NO_PRESENCE),
SND_PCI_QUIRK(0x104d, 0x9073, "Sony VAIO", ALC275_FIXUP_SONY_VAIO_GPIO2),
SND_PCI_QUIRK(0x104d, 0x907b, "Sony VAIO", ALC275_FIXUP_SONY_HWEQ),
SND_PCI_QUIRK(0x104d, 0x9084, "Sony VAIO", ALC275_FIXUP_SONY_HWEQ),
SND_PCI_QUIRK(0x17aa, 0x2214, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
SND_PCI_QUIRK(0x17aa, 0x2215, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
SND_PCI_QUIRK(0x17aa, 0x5013, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
- SND_PCI_QUIRK(0x17aa, 0x501a, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
+ SND_PCI_QUIRK(0x17aa, 0x501a, "Thinkpad", ALC283_FIXUP_INT_MIC),
SND_PCI_QUIRK(0x17aa, 0x5026, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
SND_PCI_QUIRK(0x17aa, 0x5109, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
SND_PCI_QUIRK(0x17aa, 0x3bf8, "Quanta FL1", ALC269_FIXUP_PCM_44K),
{.id = ALC269_FIXUP_STEREO_DMIC, .name = "alc269-dmic"},
{.id = ALC271_FIXUP_DMIC, .name = "alc271-dmic"},
{.id = ALC269_FIXUP_INV_DMIC, .name = "inv-dmic"},
+ {.id = ALC269_FIXUP_HEADSET_MIC, .name = "headset-mic"},
{.id = ALC269_FIXUP_LENOVO_DOCK, .name = "lenovo-dock"},
{.id = ALC269_FIXUP_HP_GPIO_LED, .name = "hp-gpio-led"},
{.id = ALC269_FIXUP_DELL1_MIC_NO_PRESENCE, .name = "dell-headset-multi"},
SND_PCI_QUIRK(0x1028, 0x05d8, "Dell", ALC668_FIXUP_DELL_MIC_NO_PRESENCE),
SND_PCI_QUIRK(0x1028, 0x05db, "Dell", ALC668_FIXUP_DELL_MIC_NO_PRESENCE),
SND_PCI_QUIRK(0x103c, 0x1632, "HP RP5800", ALC662_FIXUP_HP_RP5800),
+ SND_PCI_QUIRK(0x1043, 0x1477, "ASUS N56VZ", ALC662_FIXUP_ASUS_MODE4),
SND_PCI_QUIRK(0x1043, 0x8469, "ASUS mobo", ALC662_FIXUP_NO_JACK_DETECT),
SND_PCI_QUIRK(0x105b, 0x0cd6, "Foxconn", ALC662_FIXUP_ASUS_MODE2),
SND_PCI_QUIRK(0x144d, 0xc051, "Samsung R720", ALC662_FIXUP_IDEAPAD),
if ((err = hdsp_get_iobox_version(hdsp)) < 0)
return err;
}
+ memset(&hdsp_version, 0, sizeof(hdsp_version));
hdsp_version.io_type = hdsp->io_type;
hdsp_version.firmware_rev = hdsp->firmware_rev;
if ((err = copy_to_user(argp, &hdsp_version, sizeof(hdsp_version))))
case SNDRV_PCM_FORMAT_S8:
param.spctl |= 0x70;
sport->wdsize = 1;
+ break;
case SNDRV_PCM_FORMAT_S16_LE:
param.spctl |= 0xf0;
sport->wdsize = 2;
val = ucontrol->value.integer.value[0];
val2 = ucontrol->value.integer.value[1];
+ if (val >= ARRAY_SIZE(st_table) || val2 >= ARRAY_SIZE(st_table))
+ return -EINVAL;
+
err = snd_soc_update_bits(codec, reg, 0x3f, st_table[val].m);
if (err < 0)
return err;
struct ab8500_codec_drvdata *drvdata = dev_get_drvdata(codec->dev);
struct device *dev = codec->dev;
bool apply_fir, apply_iir;
- int req, status;
+ unsigned int req;
+ int status;
dev_dbg(dev, "%s: Enter.\n", __func__);
mutex_lock(&drvdata->anc_lock);
req = ucontrol->value.integer.value[0];
+ if (req >= ARRAY_SIZE(enum_anc_state)) {
+ status = -EINVAL;
+ goto cleanup;
+ }
if (req != ANC_APPLY_FIR_IIR && req != ANC_APPLY_FIR &&
req != ANC_APPLY_IIR) {
dev_err(dev, "%s: ERROR: Unsupported status to set '%s'!\n",
struct max98095_pdata *pdata = max98095->pdata;
int channel = max98095_get_eq_channel(kcontrol->id.name);
struct max98095_cdata *cdata;
- int sel = ucontrol->value.integer.value[0];
+ unsigned int sel = ucontrol->value.integer.value[0];
struct max98095_eq_cfg *coef_set;
int fs, best, best_val, i;
int regmask, regsave;
struct max98095_pdata *pdata = max98095->pdata;
int channel = max98095_get_bq_channel(codec, kcontrol->id.name);
struct max98095_cdata *cdata;
- int sel = ucontrol->value.integer.value[0];
+ unsigned int sel = ucontrol->value.integer.value[0];
struct max98095_biquad_cfg *coef_set;
int fs, best, best_val, i;
int regmask, regsave;
static const struct regmap_config pcm1681_regmap = {
.reg_bits = 8,
.val_bits = 8,
- .max_register = ARRAY_SIZE(pcm1681_reg_defaults) + 1,
+ .max_register = 0x13,
.reg_defaults = pcm1681_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(pcm1681_reg_defaults),
.writeable_reg = pcm1681_writeable_reg,
static const struct regmap_config pcm1792a_regmap = {
.reg_bits = 8,
.val_bits = 8,
- .max_register = 24,
+ .max_register = 23,
.reg_defaults = pcm1792a_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(pcm1792a_reg_defaults),
.writeable_reg = pcm1792a_writeable_reg,
/* Left Input */
{"Left Line1L Mux", "single-ended", "LINE1L"},
{"Left Line1L Mux", "differential", "LINE1L"},
+ {"Left Line1R Mux", "single-ended", "LINE1R"},
+ {"Left Line1R Mux", "differential", "LINE1R"},
{"Left Line2L Mux", "single-ended", "LINE2L"},
{"Left Line2L Mux", "differential", "LINE2L"},
/* Right Input */
{"Right Line1R Mux", "single-ended", "LINE1R"},
{"Right Line1R Mux", "differential", "LINE1R"},
+ {"Right Line1L Mux", "single-ended", "LINE1L"},
+ {"Right Line1L Mux", "differential", "LINE1L"},
{"Right Line2R Mux", "single-ended", "LINE2R"},
{"Right Line2R Mux", "differential", "LINE2R"},
ssi_private->ssi_phys = res.start;
ssi_private->irq = irq_of_parse_and_map(np, 0);
- if (ssi_private->irq == NO_IRQ) {
+ if (ssi_private->irq == 0) {
dev_err(&pdev->dev, "no irq for node %s\n", np->full_name);
return -ENXIO;
}
return ret;
}
- if (machine_is_mx31_3ds()) {
+ if (machine_is_mx31_3ds() || machine_is_mx31moboard()) {
imx_audmux_v2_configure_port(MX31_AUDMUX_PORT4_SSI_PINS_4,
IMX_AUDMUX_V2_PTCR_SYN,
IMX_AUDMUX_V2_PDCR_RXDSEL(MX31_AUDMUX_PORT1_SSI0) |
struct device_node *ssi_np, *codec_np;
struct platform_device *ssi_pdev;
struct i2c_client *codec_dev;
- struct imx_sgtl5000_data *data;
+ struct imx_sgtl5000_data *data = NULL;
int int_port, ext_port;
int ret;
goto fail;
}
- data->codec_clk = devm_clk_get(&codec_dev->dev, NULL);
+ data->codec_clk = clk_get(&codec_dev->dev, NULL);
if (IS_ERR(data->codec_clk)) {
ret = PTR_ERR(data->codec_clk);
goto fail;
return 0;
fail:
+ if (data && !IS_ERR(data->codec_clk))
+ clk_put(data->codec_clk);
if (ssi_np)
of_node_put(ssi_np);
if (codec_np)
struct imx_sgtl5000_data *data = platform_get_drvdata(pdev);
snd_soc_unregister_card(&data->card);
+ clk_put(data->codec_clk);
return 0;
}
ssi->fiq_params.dma_params_rx = &ssi->dma_params_rx;
ssi->fiq_params.dma_params_tx = &ssi->dma_params_tx;
- ret = imx_pcm_fiq_init(pdev, &ssi->fiq_params);
- if (ret)
- goto failed_pcm_fiq;
+ ssi->fiq_init = imx_pcm_fiq_init(pdev, &ssi->fiq_params);
+ ssi->dma_init = imx_pcm_dma_init(pdev);
- ret = imx_pcm_dma_init(pdev);
- if (ret)
- goto failed_pcm_dma;
+ if (ssi->fiq_init && ssi->dma_init) {
+ ret = ssi->fiq_init;
+ goto failed_pcm;
+ }
return 0;
-failed_pcm_dma:
- imx_pcm_fiq_exit(pdev);
-failed_pcm_fiq:
+failed_pcm:
snd_soc_unregister_component(&pdev->dev);
failed_register:
release_mem_region(res->start, resource_size(res));
struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
struct imx_ssi *ssi = platform_get_drvdata(pdev);
- imx_pcm_dma_exit(pdev);
- imx_pcm_fiq_exit(pdev);
+ if (!ssi->dma_init)
+ imx_pcm_dma_exit(pdev);
+
+ if (!ssi->fiq_init)
+ imx_pcm_fiq_exit(pdev);
snd_soc_unregister_component(&pdev->dev);
struct imx_dma_data filter_data_rx;
struct imx_pcm_fiq_params fiq_params;
+ int fiq_init;
+ int dma_init;
int enabled;
};
config SND_OMAP_SOC
tristate "SoC Audio for the Texas Instruments OMAP chips"
- depends on (ARCH_OMAP && DMA_OMAP) || (ARCH_ARM && COMPILE_TEST)
+ depends on (ARCH_OMAP && DMA_OMAP) || (ARM && COMPILE_TEST)
select SND_DMAENGINE_PCM
config SND_OMAP_SOC_DMIC
config SND_OMAP_SOC_RX51
tristate "SoC Audio support for Nokia RX-51"
- depends on SND_OMAP_SOC && ARCH_ARM && (MACH_NOKIA_RX51 || COMPILE_TEST)
+ depends on SND_OMAP_SOC && ARM && (MACH_NOKIA_RX51 || COMPILE_TEST)
select SND_OMAP_SOC_MCBSP
select SND_SOC_TLV320AIC3X
select SND_SOC_TPA6130A2
void __iomem *rsnd_gen_reg_get(struct rsnd_priv *priv,
struct rsnd_mod *mod,
enum rsnd_reg reg);
-#define rsnd_is_gen1(s) ((s)->info->flags & RSND_GEN1)
-#define rsnd_is_gen2(s) ((s)->info->flags & RSND_GEN2)
+#define rsnd_is_gen1(s) (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN1)
+#define rsnd_is_gen2(s) (((s)->info->flags & RSND_GEN_MASK) == RSND_GEN2)
/*
* R-Car ADG
return -ENODEV;
list_add(&cpu_dai->dapm.list, &card->dapm_list);
- snd_soc_dapm_new_dai_widgets(&cpu_dai->dapm, cpu_dai);
}
if (cpu_dai->driver->probe) {
}
area->vm_ops = &usb_stream_hwdep_vm_ops;
- area->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
+ area->vm_flags |= VM_DONTDUMP;
+ if (!read)
+ area->vm_flags |= VM_DONTEXPAND;
area->vm_private_data = us122l;
atomic_inc(&us122l->mmap_count);
out:
usX2Y_clients_stop(usX2Y);
}
-static void usX2Y_error_sequence(struct usX2Ydev *usX2Y,
- struct snd_usX2Y_substream *subs, struct urb *urb)
-{
- snd_printk(KERN_ERR
-"Sequence Error!(hcd_frame=%i ep=%i%s;wait=%i,frame=%i).\n"
-"Most probably some urb of usb-frame %i is still missing.\n"
-"Cause could be too long delays in usb-hcd interrupt handling.\n",
- usb_get_current_frame_number(usX2Y->dev),
- subs->endpoint, usb_pipein(urb->pipe) ? "in" : "out",
- usX2Y->wait_iso_frame, urb->start_frame, usX2Y->wait_iso_frame);
- usX2Y_clients_stop(usX2Y);
-}
-
static void i_usX2Y_urb_complete(struct urb *urb)
{
struct snd_usX2Y_substream *subs = urb->context;
usX2Y_error_urb_status(usX2Y, subs, urb);
return;
}
- if (likely((urb->start_frame & 0xFFFF) == (usX2Y->wait_iso_frame & 0xFFFF)))
- subs->completed_urb = urb;
- else {
- usX2Y_error_sequence(usX2Y, subs, urb);
- return;
- }
+
+ subs->completed_urb = urb;
+
{
struct snd_usX2Y_substream *capsubs = usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE],
*playbacksubs = usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK];
usX2Y_error_urb_status(usX2Y, subs, urb);
return;
}
- if (likely((urb->start_frame & 0xFFFF) == (usX2Y->wait_iso_frame & 0xFFFF)))
- subs->completed_urb = urb;
- else {
- usX2Y_error_sequence(usX2Y, subs, urb);
- return;
- }
+ subs->completed_urb = urb;
capsubs = usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE];
capsubs2 = usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE + 2];
playbacksubs = usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK];
#include <stdbool.h>
#include <sys/vfs.h>
#include <sys/mount.h>
-#include <linux/magic.h>
#include <linux/kernel.h>
#include "debugfs.h"
install-bin: all
$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(bindir_SQ)'
$(INSTALL) $(OUTPUT)perf '$(DESTDIR_SQ)$(bindir_SQ)'
+ $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)'
$(INSTALL) $(OUTPUT)perf-archive -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)'
ifndef NO_LIBPERL
$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/Perf-Trace-Util/lib/Perf/Trace'
int perf_read_tsc_conversion(const struct perf_event_mmap_page *pc,
struct perf_tsc_conversion *tc)
{
- bool cap_usr_time_zero;
+ bool cap_user_time_zero;
u32 seq;
int i = 0;
tc->time_mult = pc->time_mult;
tc->time_shift = pc->time_shift;
tc->time_zero = pc->time_zero;
- cap_usr_time_zero = pc->cap_usr_time_zero;
+ cap_user_time_zero = pc->cap_user_time_zero;
rmb();
if (pc->lock == seq && !(seq & 1))
break;
}
}
- if (!cap_usr_time_zero)
+ if (!cap_user_time_zero)
return -EOPNOTSUPP;
return 0;
return perf_event__repipe(tool, event_sw, &sample_sw, machine);
}
-extern volatile int session_done;
-
static void sig_handler(int sig __maybe_unused)
{
session_done = 1;
dir1 = opendir(PATH_SYS_NODE);
if (!dir1)
- return -1;
+ return 0;
while ((dent1 = readdir(dir1)) != NULL) {
if (dent1->d_type != DT_DIR ||
return 0;
}
-extern volatile int session_done;
-
static void sig_handler(int sig __maybe_unused)
{
session_done = 1;
}
}
+ if (session_done())
+ return 0;
+
if (nr_samples == 0) {
ui__error("The %s file has no samples!\n", session->filename);
return 0;
.ordering_requires_timestamps = true,
};
-extern volatile int session_done;
-
static void sig_handler(int sig __maybe_unused)
{
session_done = 1;
perror("failed to prepare workload");
return -1;
}
+ child_pid = evsel_list->workload.pid;
}
if (group)
#include <sys/mman.h>
#include <linux/futex.h>
+/* For older distros: */
+#ifndef MAP_STACK
+# define MAP_STACK 0x20000
+#endif
+
+#ifndef MADV_HWPOISON
+# define MADV_HWPOISON 100
+#endif
+
+#ifndef MADV_MERGEABLE
+# define MADV_MERGEABLE 12
+#endif
+
+#ifndef MADV_UNMERGEABLE
+# define MADV_UNMERGEABLE 13
+#endif
+
static size_t syscall_arg__scnprintf_hex(char *bf, size_t size,
unsigned long arg,
u8 arg_idx __maybe_unused,
trace->tool.sample = trace__process_sample;
trace->tool.mmap = perf_event__process_mmap;
+ trace->tool.mmap2 = perf_event__process_mmap2;
trace->tool.comm = perf_event__process_comm;
trace->tool.exit = perf_event__process_exit;
trace->tool.fork = perf_event__process_fork;
CFLAGS += -Wextra
CFLAGS += -std=gnu99
-EXTLIBS = -lelf -lpthread -lrt -lm
+EXTLIBS = -lelf -lpthread -lrt -lm -ldl
ifeq ($(call try-cc,$(SOURCE_HELLO),$(CFLAGS) -Werror -fstack-protector-all,-fstack-protector-all),y)
CFLAGS += -fstack-protector-all
ifeq ($(call try-cc,$(SOURCE_ELF_MMAP),$(FLAGS_LIBELF),-DLIBELF_MMAP),y)
CFLAGS += -DLIBELF_MMAP
endif
+ifeq ($(call try-cc,$(SOURCE_ELF_GETPHDRNUM),$(FLAGS_LIBELF),-DHAVE_ELF_GETPHDRNUM),y)
+ CFLAGS += -DHAVE_ELF_GETPHDRNUM
+endif
# include ARCH specific config
-include $(src-perf)/arch/$(ARCH)/Makefile
}
endef
+define SOURCE_ELF_GETPHDRNUM
+#include <libelf.h>
+int main(void)
+{
+ size_t dst;
+ return elf_getphdrnum(0, &dst);
+}
+endef
+
ifndef NO_SLANG
define SOURCE_SLANG
#include <slang.h>
int main(void)
{
+ printf(\"error message: %s\", audit_errno_to_name(0));
return audit_open();
}
endef
end = map__rip_2objdump(map, sym->end);
offset = line_ip - start;
- if (offset < 0 || (u64)line_ip > end)
+ if ((u64)line_ip < start || (u64)line_ip > end)
offset = -1;
else
parsed_line = tmp2 + 1;
ret == DW_ATE_signed_fixed);
}
+/**
+ * die_is_func_def - Ensure that this DIE is a subprogram and definition
+ * @dw_die: a DIE
+ *
+ * Ensure that this DIE is a subprogram and NOT a declaration. This
+ * returns true if @dw_die is a function definition.
+ **/
+bool die_is_func_def(Dwarf_Die *dw_die)
+{
+ Dwarf_Attribute attr;
+
+ return (dwarf_tag(dw_die) == DW_TAG_subprogram &&
+ dwarf_attr(dw_die, DW_AT_declaration, &attr) == NULL);
+}
+
/**
* die_get_data_member_location - Get the data-member offset
* @mb_die: a DIE of a member of a data structure
{
struct __addr_die_search_param *ad = data;
+ /*
+ * Since a declaration entry doesn't has given pc, this always returns
+ * function definition entry.
+ */
if (dwarf_tag(fn_die) == DW_TAG_subprogram &&
dwarf_haspc(fn_die, ad->addr)) {
memcpy(ad->die_mem, fn_die, sizeof(Dwarf_Die));
* @die_mem: a buffer for result DIE
*
* Search a non-inlined function DIE which includes @addr. Stores the
- * DIE to @die_mem and returns it if found. Returns NULl if failed.
+ * DIE to @die_mem and returns it if found. Returns NULL if failed.
*/
Dwarf_Die *die_find_realfunc(Dwarf_Die *cu_die, Dwarf_Addr addr,
Dwarf_Die *die_mem)
return DIE_FIND_CB_CONTINUE;
}
+/**
+ * die_find_top_inlinefunc - Search the top inlined function at given address
+ * @sp_die: a subprogram DIE which including @addr
+ * @addr: target address
+ * @die_mem: a buffer for result DIE
+ *
+ * Search an inlined function DIE which includes @addr. Stores the
+ * DIE to @die_mem and returns it if found. Returns NULL if failed.
+ * Even if several inlined functions are expanded recursively, this
+ * doesn't trace it down, and returns the topmost one.
+ */
+Dwarf_Die *die_find_top_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr,
+ Dwarf_Die *die_mem)
+{
+ return die_find_child(sp_die, __die_find_inline_cb, &addr, die_mem);
+}
+
/**
* die_find_inlinefunc - Search an inlined function at given address
- * @cu_die: a CU DIE which including @addr
+ * @sp_die: a subprogram DIE which including @addr
* @addr: target address
* @die_mem: a buffer for result DIE
*
* Search an inlined function DIE which includes @addr. Stores the
- * DIE to @die_mem and returns it if found. Returns NULl if failed.
+ * DIE to @die_mem and returns it if found. Returns NULL if failed.
* If several inlined functions are expanded recursively, this trace
- * it and returns deepest one.
+ * it down and returns deepest one.
*/
Dwarf_Die *die_find_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr,
Dwarf_Die *die_mem)
extern int cu_walk_functions_at(Dwarf_Die *cu_die, Dwarf_Addr addr,
int (*callback)(Dwarf_Die *, void *), void *data);
+/* Ensure that this DIE is a subprogram and definition (not declaration) */
+extern bool die_is_func_def(Dwarf_Die *dw_die);
+
/* Compare diename and tname */
extern bool die_compare_name(Dwarf_Die *dw_die, const char *tname);
extern Dwarf_Die *die_find_realfunc(Dwarf_Die *cu_die, Dwarf_Addr addr,
Dwarf_Die *die_mem);
-/* Search an inlined function including given address */
+/* Search the top inlined function including given address */
+extern Dwarf_Die *die_find_top_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr,
+ Dwarf_Die *die_mem);
+
+/* Search the deepest inlined function including given address */
extern Dwarf_Die *die_find_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr,
Dwarf_Die *die_mem);
return -1;
}
- event->header.type = PERF_RECORD_MMAP2;
+ event->header.type = PERF_RECORD_MMAP;
/*
* Just like the kernel, see __perf_event_mmap in kernel/perf_event.c
*/
char prot[5];
char execname[PATH_MAX];
char anonstr[] = "//anon";
- unsigned int ino;
size_t size;
ssize_t n;
strcpy(execname, "");
/* 00400000-0040c000 r-xp 00000000 fd:01 41038 /bin/cat */
- n = sscanf(bf, "%"PRIx64"-%"PRIx64" %s %"PRIx64" %x:%x %u %s\n",
- &event->mmap2.start, &event->mmap2.len, prot,
- &event->mmap2.pgoff, &event->mmap2.maj,
- &event->mmap2.min,
- &ino, execname);
-
- event->mmap2.ino = (u64)ino;
+ n = sscanf(bf, "%"PRIx64"-%"PRIx64" %s %"PRIx64" %*x:%*x %*u %s\n",
+ &event->mmap.start, &event->mmap.len, prot,
+ &event->mmap.pgoff,
+ execname);
if (n != 8)
continue;
strcpy(execname, anonstr);
size = strlen(execname) + 1;
- memcpy(event->mmap2.filename, execname, size);
+ memcpy(event->mmap.filename, execname, size);
size = PERF_ALIGN(size, sizeof(u64));
- event->mmap2.len -= event->mmap.start;
- event->mmap2.header.size = (sizeof(event->mmap2) -
- (sizeof(event->mmap2.filename) - size));
- memset(event->mmap2.filename + size, 0, machine->id_hdr_size);
- event->mmap2.header.size += machine->id_hdr_size;
- event->mmap2.pid = tgid;
- event->mmap2.tid = pid;
+ event->mmap.len -= event->mmap.start;
+ event->mmap.header.size = (sizeof(event->mmap) -
+ (sizeof(event->mmap.filename) - size));
+ memset(event->mmap.filename + size, 0, machine->id_hdr_size);
+ event->mmap.header.size += machine->id_hdr_size;
+ event->mmap.pid = tgid;
+ event->mmap.tid = pid;
if (process(tool, event, &synth_sample, machine) != 0) {
rc = -1;
attr->sample_type |= PERF_SAMPLE_WEIGHT;
attr->mmap = track;
- attr->mmap2 = track && !perf_missing_features.mmap2;
attr->comm = track;
/*
return write_padded(fd, name, name_len + 1, len);
}
-static int __dsos__write_buildid_table(struct list_head *head, pid_t pid,
- u16 misc, int fd)
+static int __dsos__write_buildid_table(struct list_head *head,
+ struct machine *machine,
+ pid_t pid, u16 misc, int fd)
{
+ char nm[PATH_MAX];
struct dso *pos;
dsos__for_each_with_build_id(pos, head) {
if (is_vdso_map(pos->short_name)) {
name = (char *) VDSO__MAP_NAME;
name_len = sizeof(VDSO__MAP_NAME) + 1;
+ } else if (dso__is_kcore(pos)) {
+ machine__mmap_name(machine, nm, sizeof(nm));
+ name = nm;
+ name_len = strlen(nm) + 1;
} else {
name = pos->long_name;
name_len = pos->long_name_len + 1;
umisc = PERF_RECORD_MISC_GUEST_USER;
}
- err = __dsos__write_buildid_table(&machine->kernel_dsos, machine->pid,
- kmisc, fd);
+ err = __dsos__write_buildid_table(&machine->kernel_dsos, machine,
+ machine->pid, kmisc, fd);
if (err == 0)
- err = __dsos__write_buildid_table(&machine->user_dsos,
+ err = __dsos__write_buildid_table(&machine->user_dsos, machine,
machine->pid, umisc, fd);
return err;
}
return err;
}
-static int dso__cache_build_id(struct dso *dso, const char *debugdir)
+static int dso__cache_build_id(struct dso *dso, struct machine *machine,
+ const char *debugdir)
{
bool is_kallsyms = dso->kernel && dso->long_name[0] != '/';
bool is_vdso = is_vdso_map(dso->short_name);
+ char *name = dso->long_name;
+ char nm[PATH_MAX];
- return build_id_cache__add_b(dso->build_id, sizeof(dso->build_id),
- dso->long_name, debugdir,
- is_kallsyms, is_vdso);
+ if (dso__is_kcore(dso)) {
+ is_kallsyms = true;
+ machine__mmap_name(machine, nm, sizeof(nm));
+ name = nm;
+ }
+ return build_id_cache__add_b(dso->build_id, sizeof(dso->build_id), name,
+ debugdir, is_kallsyms, is_vdso);
}
-static int __dsos__cache_build_ids(struct list_head *head, const char *debugdir)
+static int __dsos__cache_build_ids(struct list_head *head,
+ struct machine *machine, const char *debugdir)
{
struct dso *pos;
int err = 0;
dsos__for_each_with_build_id(pos, head)
- if (dso__cache_build_id(pos, debugdir))
+ if (dso__cache_build_id(pos, machine, debugdir))
err = -1;
return err;
static int machine__cache_build_ids(struct machine *machine, const char *debugdir)
{
- int ret = __dsos__cache_build_ids(&machine->kernel_dsos, debugdir);
- ret |= __dsos__cache_build_ids(&machine->user_dsos, debugdir);
+ int ret = __dsos__cache_build_ids(&machine->kernel_dsos, machine,
+ debugdir);
+ ret |= __dsos__cache_build_ids(&machine->user_dsos, machine, debugdir);
return ret;
}
if (perf_file_header__read(&f_header, header, fd) < 0)
return -EINVAL;
+ /*
+ * Sanity check that perf.data was written cleanly; data size is
+ * initialized to 0 and updated only if the on_exit function is run.
+ * If data size is still 0 then the file contains only partial
+ * information. Just warn user and process it as much as it can.
+ */
+ if (f_header.data.size == 0) {
+ pr_warning("WARNING: The %s file's data size field is 0 which is unexpected.\n"
+ "Was the 'perf record' command properly terminated?\n",
+ session->filename);
+ }
+
nr_attrs = f_header.attrs.size / f_header.attr_size;
lseek(fd, f_header.attrs.offset, SEEK_SET);
next = rb_first(root);
while (next) {
+ if (session_done())
+ break;
n = rb_entry(next, struct hist_entry, rb_node_in);
next = rb_next(&n->rb_node_in);
modules = path;
}
- if (symbol__restricted_filename(path, "/proc/modules"))
+ if (symbol__restricted_filename(modules, "/proc/modules"))
return -1;
file = fopen(modules, "r");
static int debuginfo__init_offline_dwarf(struct debuginfo *self,
const char *path)
{
- Dwfl_Module *mod;
int fd;
fd = open(path, O_RDONLY);
if (!self->dwfl)
goto error;
- mod = dwfl_report_offline(self->dwfl, "", "", fd);
- if (!mod)
+ self->mod = dwfl_report_offline(self->dwfl, "", "", fd);
+ if (!self->mod)
goto error;
- self->dbg = dwfl_module_getdwarf(mod, &self->bias);
+ self->dbg = dwfl_module_getdwarf(self->mod, &self->bias);
if (!self->dbg)
goto error;
}
/* Convert subprogram DIE to trace point */
-static int convert_to_trace_point(Dwarf_Die *sp_die, Dwarf_Addr paddr,
- bool retprobe, struct probe_trace_point *tp)
+static int convert_to_trace_point(Dwarf_Die *sp_die, Dwfl_Module *mod,
+ Dwarf_Addr paddr, bool retprobe,
+ struct probe_trace_point *tp)
{
Dwarf_Addr eaddr, highaddr;
- const char *name;
-
- /* Copy the name of probe point */
- name = dwarf_diename(sp_die);
- if (name) {
- if (dwarf_entrypc(sp_die, &eaddr) != 0) {
- pr_warning("Failed to get entry address of %s\n",
- dwarf_diename(sp_die));
- return -ENOENT;
- }
- if (dwarf_highpc(sp_die, &highaddr) != 0) {
- pr_warning("Failed to get end address of %s\n",
- dwarf_diename(sp_die));
- return -ENOENT;
- }
- if (paddr > highaddr) {
- pr_warning("Offset specified is greater than size of %s\n",
- dwarf_diename(sp_die));
- return -EINVAL;
- }
- tp->symbol = strdup(name);
- if (tp->symbol == NULL)
- return -ENOMEM;
- tp->offset = (unsigned long)(paddr - eaddr);
- } else
- /* This function has no name. */
- tp->offset = (unsigned long)paddr;
+ GElf_Sym sym;
+ const char *symbol;
+
+ /* Verify the address is correct */
+ if (dwarf_entrypc(sp_die, &eaddr) != 0) {
+ pr_warning("Failed to get entry address of %s\n",
+ dwarf_diename(sp_die));
+ return -ENOENT;
+ }
+ if (dwarf_highpc(sp_die, &highaddr) != 0) {
+ pr_warning("Failed to get end address of %s\n",
+ dwarf_diename(sp_die));
+ return -ENOENT;
+ }
+ if (paddr > highaddr) {
+ pr_warning("Offset specified is greater than size of %s\n",
+ dwarf_diename(sp_die));
+ return -EINVAL;
+ }
+
+ /* Get an appropriate symbol from symtab */
+ symbol = dwfl_module_addrsym(mod, paddr, &sym, NULL);
+ if (!symbol) {
+ pr_warning("Failed to find symbol at 0x%lx\n",
+ (unsigned long)paddr);
+ return -ENOENT;
+ }
+ tp->offset = (unsigned long)(paddr - sym.st_value);
+ tp->symbol = strdup(symbol);
+ if (!tp->symbol)
+ return -ENOMEM;
/* Return probe must be on the head of a subprogram */
if (retprobe) {
}
/* If not a real subprogram, find a real one */
- if (dwarf_tag(sc_die) != DW_TAG_subprogram) {
+ if (!die_is_func_def(sc_die)) {
if (!die_find_realfunc(&pf->cu_die, pf->addr, &pf->sp_die)) {
pr_warning("Failed to find probe point in any "
"functions.\n");
struct dwarf_callback_param *param = data;
struct probe_finder *pf = param->data;
struct perf_probe_point *pp = &pf->pev->point;
- Dwarf_Attribute attr;
/* Check tag and diename */
- if (dwarf_tag(sp_die) != DW_TAG_subprogram ||
- !die_compare_name(sp_die, pp->function) ||
- dwarf_attr(sp_die, DW_AT_declaration, &attr))
+ if (!die_is_func_def(sp_die) ||
+ !die_compare_name(sp_die, pp->function))
return DWARF_CB_OK;
/* Check declared file */
tev = &tf->tevs[tf->ntevs++];
/* Trace point should be converted from subprogram DIE */
- ret = convert_to_trace_point(&pf->sp_die, pf->addr,
+ ret = convert_to_trace_point(&pf->sp_die, tf->mod, pf->addr,
pf->pev->point.retprobe, &tev->point);
if (ret < 0)
return ret;
{
struct trace_event_finder tf = {
.pf = {.pev = pev, .callback = add_probe_trace_event},
- .max_tevs = max_tevs};
+ .mod = self->mod, .max_tevs = max_tevs};
int ret;
/* Allocate result tevs array */
vl = &af->vls[af->nvls++];
/* Trace point should be converted from subprogram DIE */
- ret = convert_to_trace_point(&pf->sp_die, pf->addr,
+ ret = convert_to_trace_point(&pf->sp_die, af->mod, pf->addr,
pf->pev->point.retprobe, &vl->point);
if (ret < 0)
return ret;
{
struct available_var_finder af = {
.pf = {.pev = pev, .callback = add_available_vars},
+ .mod = self->mod,
.max_vls = max_vls, .externs = externs};
int ret;
struct perf_probe_point *ppt)
{
Dwarf_Die cudie, spdie, indie;
- Dwarf_Addr _addr, baseaddr;
- const char *fname = NULL, *func = NULL, *tmp;
+ Dwarf_Addr _addr = 0, baseaddr = 0;
+ const char *fname = NULL, *func = NULL, *basefunc = NULL, *tmp;
int baseline = 0, lineno = 0, ret = 0;
/* Adjust address with bias */
/* Find a corresponding function (name, baseline and baseaddr) */
if (die_find_realfunc(&cudie, (Dwarf_Addr)addr, &spdie)) {
/* Get function entry information */
- tmp = dwarf_diename(&spdie);
- if (!tmp ||
+ func = basefunc = dwarf_diename(&spdie);
+ if (!func ||
dwarf_entrypc(&spdie, &baseaddr) != 0 ||
- dwarf_decl_line(&spdie, &baseline) != 0)
+ dwarf_decl_line(&spdie, &baseline) != 0) {
+ lineno = 0;
goto post;
- func = tmp;
+ }
- if (addr == (unsigned long)baseaddr)
+ fname = dwarf_decl_file(&spdie);
+ if (addr == (unsigned long)baseaddr) {
/* Function entry - Relative line number is 0 */
lineno = baseline;
- else if (die_find_inlinefunc(&spdie, (Dwarf_Addr)addr,
- &indie)) {
+ goto post;
+ }
+
+ /* Track down the inline functions step by step */
+ while (die_find_top_inlinefunc(&spdie, (Dwarf_Addr)addr,
+ &indie)) {
+ /* There is an inline function */
if (dwarf_entrypc(&indie, &_addr) == 0 &&
- _addr == addr)
+ _addr == addr) {
/*
* addr is at an inline function entry.
* In this case, lineno should be the call-site
- * line number.
+ * line number. (overwrite lineinfo)
*/
lineno = die_get_call_lineno(&indie);
- else {
+ fname = die_get_call_file(&indie);
+ break;
+ } else {
/*
* addr is in an inline function body.
* Since lineno points one of the lines
* be the entry line of the inline function.
*/
tmp = dwarf_diename(&indie);
- if (tmp &&
- dwarf_decl_line(&spdie, &baseline) == 0)
- func = tmp;
+ if (!tmp ||
+ dwarf_decl_line(&indie, &baseline) != 0)
+ break;
+ func = tmp;
+ spdie = indie;
}
}
+ /* Verify the lineno and baseline are in a same file */
+ tmp = dwarf_decl_file(&spdie);
+ if (!tmp || strcmp(tmp, fname) != 0)
+ lineno = 0;
}
post:
/* Make a relative line number or an offset */
if (lineno)
ppt->line = lineno - baseline;
- else if (func)
+ else if (basefunc) {
ppt->offset = addr - (unsigned long)baseaddr;
+ func = basefunc;
+ }
/* Duplicate strings */
if (func) {
return 0;
}
-/* Search function from function name */
+/* Search function definition from function name */
static int line_range_search_cb(Dwarf_Die *sp_die, void *data)
{
struct dwarf_callback_param *param = data;
if (lr->file && strtailcmp(lr->file, dwarf_decl_file(sp_die)))
return DWARF_CB_OK;
- if (dwarf_tag(sp_die) == DW_TAG_subprogram &&
+ if (die_is_func_def(sp_die) &&
die_compare_name(sp_die, lr->function)) {
lf->fname = dwarf_decl_file(sp_die);
dwarf_decl_line(sp_die, &lr->offset);
/* debug information structure */
struct debuginfo {
Dwarf *dbg;
+ Dwfl_Module *mod;
Dwfl *dwfl;
Dwarf_Addr bias;
};
struct trace_event_finder {
struct probe_finder pf;
+ Dwfl_Module *mod; /* For solving symbols */
struct probe_trace_event *tevs; /* Found trace events */
int ntevs; /* Number of trace events */
int max_tevs; /* Max number of trace events */
struct available_var_finder {
struct probe_finder pf;
+ Dwfl_Module *mod; /* For solving symbols */
struct variable_list *vls; /* Found variable lists */
int nvls; /* Number of variable lists */
int max_vls; /* Max no. of variable lists */
event = find_cache_event(evsel);
if (!event)
- die("ug! no event found for type %" PRIu64, evsel->attr.config);
+ die("ug! no event found for type %" PRIu64, (u64)evsel->attr.config);
pid = raw_field_value(event, "common_pid", data);
tool->sample = process_event_sample_stub;
if (tool->mmap == NULL)
tool->mmap = process_event_stub;
+ if (tool->mmap2 == NULL)
+ tool->mmap2 = process_event_stub;
if (tool->comm == NULL)
tool->comm = process_event_stub;
if (tool->fork == NULL)
return 0;
list_for_each_entry_safe(iter, tmp, head, list) {
+ if (session_done())
+ return 0;
+
if (iter->timestamp > limit)
break;
}
}
-#define session_done() (*(volatile int *)(&session_done))
volatile int session_done;
static int __perf_session__process_pipe_events(struct perf_session *self,
file_offset = page_offset;
head = data_offset - page_offset;
- if (data_offset + data_size < file_size)
+ if (data_size && (data_offset + data_size < file_size))
file_size = data_offset + data_size;
progress_next = file_size / 16;
"Processing events...");
}
+ err = 0;
+ if (session_done())
+ goto out_err;
+
if (file_pos < file_size)
goto more;
- err = 0;
/* do the final flush for ordered samples */
session->ordered_samples.next_flush = ULLONG_MAX;
err = flush_sample_queue(session, tool);
#define perf_session__set_tracepoints_handlers(session, array) \
__perf_session__set_tracepoints_handlers(session, array, ARRAY_SIZE(array))
+
+extern volatile int session_done;
+
+#define session_done() (*(volatile int *)(&session_done))
#endif /* __PERF_SESSION_H */
#include "symbol.h"
#include "debug.h"
+#ifndef HAVE_ELF_GETPHDRNUM
+static int elf_getphdrnum(Elf *elf, size_t *dst)
+{
+ GElf_Ehdr gehdr;
+ GElf_Ehdr *ehdr;
+
+ ehdr = gelf_getehdr(elf, &gehdr);
+ if (!ehdr)
+ return -1;
+
+ *dst = ehdr->e_phnum;
+
+ return 0;
+}
+#endif
+
#ifndef NT_GNU_BUILD_ID
#define NT_GNU_BUILD_ID 3
#endif
char *next = NULL;
char *addr_str;
char *mod;
- char *fmt;
+ char *fmt = NULL;
line = strtok_r(file, "\n", &next);
while (line) {
fflush(stdout);
done = 0;
- timer_create(which, NULL, &id);
+ err = timer_create(which, NULL, &id);
if (err < 0) {
perror("Can't create timer\n");
return -1;
unsigned long gfn_to_hva_prot(struct kvm *kvm, gfn_t gfn, bool *writable)
{
struct kvm_memory_slot *slot = gfn_to_memslot(kvm, gfn);
- if (writable)
+ unsigned long hva = __gfn_to_hva_many(slot, gfn, NULL, false);
+
+ if (!kvm_is_error_hva(hva) && writable)
*writable = !memslot_is_readonly(slot);
- return __gfn_to_hva_many(gfn_to_memslot(kvm, gfn), gfn, NULL, false);
+ return hva;
}
static int kvm_read_hva(void *data, void __user *hva, int len)
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