dm raid1: add is_remote_recovering hook for clusters
The logging API needs an extra function to make cluster mirroring
possible. This new function allows us to check whether a mirror
region is being recovered on another machine in the cluster. This
helps us prevent simultaneous recovery I/O and process I/O to the
same locations on disk.
Cluster-aware log modules will implement this function. Single
machine log modules will not. So, there is no performance
penalty for single machine mirrors.
Signed-off-by: Jonathan Brassow <jbrassow@redhat.com> Acked-by: Heinz Mauelshagen <heinzm@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Mike Snitzer [Thu, 2 Apr 2009 18:55:30 +0000 (19:55 +0100)]
dm log: remove struct dm_dirty_log_internal
Remove the 'dm_dirty_log_internal' structure. The resulting cleanup
eliminates extra memory allocations. Therefore exposing the internal
list_head to the external 'dm_dirty_log_type' structure is a worthwhile
compromise.
Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Johannes Weiner [Thu, 2 Apr 2009 18:55:28 +0000 (19:55 +0100)]
dm crypt: use kzfree
Use kzfree() instead of memset() + kfree().
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Refcounting with non-atomic ops under shared lock will corrupt the counter
in multi-processor system and may trigger BUG_ON().
Use module refcount.
# same approach as dm-target-use-module-refcount-directly.patch here
# https://www.redhat.com/archives/dm-devel/2008-December/msg00075.html
The tt_internal's 'use' field is superfluous: the module's refcount can do
the work properly. An acceptable side-effect is that this increases the
reference counts reported by 'lsmod'.
Remove the superfluous test when removing a target module.
[Crash possible without this on SMP - agk]
Cc: stable@kernel.org Signed-off-by: Cheng Renquan <crquan@gmail.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> Reviewed-by: Alasdair G Kergon <agk@redhat.com> Reviewed-by: Jonathan Brassow <jbrassow@redhat.com>
dm snapshot: avoid having two exceptions for the same chunk
We need to check if the exception was completed after dropping the lock.
After regaining the lock, __find_pending_exception checks if the exception
was already placed into &s->pending hash.
But we don't check if the exception was already completed and placed into
&s->complete hash. If the process waiting in alloc_pending_exception was
delayed at this point because of a scheduling latency and the exception
was meanwhile completed, we'd miss that and allocate another pending
exception for already completed chunk.
It would lead to a situation where two records for the same chunk exist
and potential data corruption because multiple snapshot I/Os to the
affected chunk could be redirected to different locations in the
snapshot.
If someone sends signal to a process performing synchronous dm-io call,
the kernel may crash.
The function sync_io attempts to exit with -EINTR if it has pending signal,
however the structure "io" is allocated on stack, so already submitted io
requests end up touching unallocated stack space and corrupting kernel memory.
sync_io sets its state to TASK_UNINTERRUPTIBLE, so the signal can't break out
of io_schedule() --- however, if the signal was pending before sync_io entered
while (1) loop, the corruption of kernel memory will happen.
There is no way to cancel in-progress IOs, so the best solution is to ignore
signals at this point.
dm raid1: switch read_record from kmalloc to slab to save memory
With my previous patch to save bi_io_vec, the size of dm_raid1_read_record
is significantly increased (the vector list takes 3072 bytes on 32-bit machines
and 4096 bytes on 64-bit machines).
The structure dm_raid1_read_record used to be allocated with kmalloc,
but kmalloc aligns the size on the next power-of-two so an object
slightly greater than 4096 will allocate 8192 bytes of memory and half of
that memory will be wasted.
This patch turns kmalloc into a slab cache which doesn't have this
padding so it will reduce the memory consumed.
Device mapper saves and restores various fields in the bio, but it doesn't save
bi_io_vec. If the device driver modifies this after a partially successful
request, dm-raid1 and dm-multipath may attempt to resubmit a bio that has
bi_size inconsistent with the size of vector.
To make requests resubmittable in dm-raid1 and dm-multipath, we must save
and restore the bio vector as well.
To reduce the memory overhead involved in this, we do not save the pages in a
vector and use a 16-bit field size if the page size is less than 65536.
Merge branch 'x86-setup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-setup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, setup: guard against pre-ACPI 3 e820 code not updating %ecx
Commit 64ef8957986f6a04f61e7c95fa6ffeb3a86a6661 ("qeth: remove EDDP")
removed the qeth_core_offl.[hc] files, but ended up doing so by just
patching them to zero size, rather than removing them properly.
Actually remove the files.
Reported-by: Andrew Price <andy@andrewprice.me.uk> Cc: Frank Blaschka <frank.blaschka@de.ibm.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
H. Peter Anvin [Wed, 1 Apr 2009 18:35:00 +0000 (11:35 -0700)]
x86, setup: guard against pre-ACPI 3 e820 code not updating %ecx
Impact: BIOS bug safety
For pre-ACPI 3 BIOSes, pre-initialize the end of the e820 buffer just
in case the BIOS returns an unchanged %ecx but without actually
touching the ACPI 3 extended flags field.
Merge branch 'x86/setup' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86/setup' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, setup: ACPI 3, BIOS workaround for E820-probing code
x86, setup: preemptively save/restore edi and ebp around INT 15 E820
x86, setup: mark %esi as clobbered in E820 BIOS call
Merge branch 'for-linus' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
* 'for-linus' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: (58 commits)
SUNRPC: Ensure IPV6_V6ONLY is set on the socket before binding to a port
NSM: Fix unaligned accesses in nsm_init_private()
NFS: Simplify logic to compare socket addresses in client.c
NFS: Start PF_INET6 callback listener only if IPv6 support is available
lockd: Start PF_INET6 listener only if IPv6 support is available
SUNRPC: Remove CONFIG_SUNRPC_REGISTER_V4
SUNRPC: rpcb_register() should handle errors silently
SUNRPC: Simplify kernel RPC service registration
SUNRPC: Simplify svc_unregister()
SUNRPC: Allow callers to pass rpcb_v4_register a NULL address
SUNRPC: rpcbind actually interprets r_owner string
SUNRPC: Clean up address type casts in rpcb_v4_register()
SUNRPC: Don't return EPROTONOSUPPORT in svc_register()'s helpers
SUNRPC: Use IPv4 loopback for registering AF_INET6 kernel RPC services
SUNRPC: Set IPV6ONLY flag on PF_INET6 RPC listener sockets
NFS: Revert creation of IPv6 listeners for lockd and NFSv4 callbacks
SUNRPC: Remove @family argument from svc_create() and svc_create_pooled()
SUNRPC: Change svc_create_xprt() to take a @family argument
SUNRPC: svc_setup_socket() gets protocol family from socket
SUNRPC: Pass a family argument to svc_register()
...
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (33 commits)
ext4: Regularize mount options
ext4: fix locking typo in mballoc which could cause soft lockup hangs
ext4: fix typo which causes a memory leak on error path
jbd2: Update locking coments
ext4: Rename pa_linear to pa_type
ext4: add checks of block references for non-extent inodes
ext4: Check for an valid i_mode when reading the inode from disk
ext4: Use WRITE_SYNC for commits which are caused by fsync()
ext4: Add auto_da_alloc mount option
ext4: Use struct flex_groups to calculate get_orlov_stats()
ext4: Use atomic_t's in struct flex_groups
ext4: remove /proc tuning knobs
ext4: Add sysfs support
ext4: Track lifetime disk writes
ext4: Fix discard of inode prealloc space with delayed allocation.
ext4: Automatically allocate delay allocated blocks on rename
ext4: Automatically allocate delay allocated blocks on close
ext4: add EXT4_IOC_ALLOC_DA_BLKS ioctl
ext4: Simplify delalloc code by removing mpage_da_writepages()
ext4: Save stack space by removing fake buffer heads
...
* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
Btrfs: try to free metadata pages when we free btree blocks
Btrfs: add extra flushing for renames and truncates
Btrfs: make sure btrfs_update_delayed_ref doesn't increase ref_mod
Btrfs: optimize fsyncs on old files
Btrfs: tree logging unlink/rename fixes
Btrfs: Make sure i_nlink doesn't hit zero too soon during log replay
Btrfs: limit balancing work while flushing delayed refs
Btrfs: readahead checksums during btrfs_finish_ordered_io
Btrfs: leave btree locks spinning more often
Btrfs: Only let very young transactions grow during commit
Btrfs: Check for a blocking lock before taking the spin
Btrfs: reduce stack in cow_file_range
Btrfs: reduce stalls during transaction commit
Btrfs: process the delayed reference queue in clusters
Btrfs: try to cleanup delayed refs while freeing extents
Btrfs: reduce stack usage in some crucial tree balancing functions
Btrfs: do extent allocation and reference count updates in the background
Btrfs: don't preallocate metadata blocks during btrfs_search_slot
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (59 commits)
ide-floppy: do not complete rq's prematurely
ide: be able to build pmac driver without IDE built-in
ide-pmac: IDE cable detection on Apple PowerBook
ide: inline SELECT_DRIVE()
ide: turn selectproc() method into dev_select() method (take 5)
MAINTAINERS: move old ide-{floppy,tape} entries to CREDITS (take 2)
ide: move data register access out of tf_{read|load}() methods (take 2)
ide: call {in|out}put_data() methods from tf_{read|load}() methods (take 2)
ide-io-std: shorten ide_{in|out}put_data()
ide: rename IDE_TFLAG_IN_[HOB_]FEATURE
ide: turn set_irq() method into write_devctl() method
ide: use ATA_HOB
ide-disk: use ATA_ERR
ide: add support for CFA specified transfer modes (take 3)
ide-iops: only clear DMA words on setting DMA mode
ide: identify data word 53 bit 1 doesn't cover words 62 and 63 (take 3)
au1xxx-ide: auide_{in|out}sw() should be static
ide-floppy: use ide_pio_bytes()
ide-{floppy,tape}: fix padding for PIO transfers
ide: remove CONFIG_BLK_DEV_IDEDOUBLER config option
...
Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (88 commits)
PCI: fix HT MSI mapping fix
PCI: don't enable too much HT MSI mapping
x86/PCI: make pci=lastbus=255 work when acpi is on
PCI: save and restore PCIe 2.0 registers
PCI: update fakephp for bus_id removal
PCI: fix kernel oops on bridge removal
PCI: fix conflict between SR-IOV and config space sizing
powerpc/PCI: include pci.h in powerpc MSI implementation
PCI Hotplug: schedule fakephp for feature removal
PCI Hotplug: rename legacy_fakephp to fakephp
PCI Hotplug: restore fakephp interface with complete reimplementation
PCI: Introduce /sys/bus/pci/devices/.../rescan
PCI: Introduce /sys/bus/pci/devices/.../remove
PCI: Introduce /sys/bus/pci/rescan
PCI: Introduce pci_rescan_bus()
PCI: do not enable bridges more than once
PCI: do not initialize bridges more than once
PCI: always scan child buses
PCI: pci_scan_slot() returns newly found devices
PCI: don't scan existing devices
...
Fix trivial append-only conflict in Documentation/feature-removal-schedule.txt
Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
[S390] cio: online_store - trigger recognition for boxed devices
[S390] cio: disallow online setting of device in transient state
[S390] cio: introduce notifier for boxed state
[S390] cio: introduce ccw_device_schedule_sch_unregister
[S390] cio: wake up on failed recognition
[S390] fix hypfs build failure
[PATCH] sysrq: include interrupt.h instead of irq.h
Brian Maly [Tue, 31 Mar 2009 22:25:50 +0000 (15:25 -0700)]
efifb: dmi set video type
The current logic for dmi matching in efifb does not allow efifb to load
on all hardware that we can dmi match for.
For a real world example, boot with elilo (3.7 or 3.8 vanilla) and on a
Apple (MacBook) and EFI framebuffer driver will not load (you will have no
video). This specific hardware is efi v1.10, so we have UGA and not GOP.
Without special bootloader magic (i.e. extra elilo patches for UGA
graphics detection) no screen info will be passed to the kernel and as a
result efifb will not load.
This patch allows the dmi match to happen by moving it to earlier in
efifb_init, and sets the video type (in set_system) so that efifb can load
when we have a valid dmi match and already know the specifics of the
hardware.
Without this patch the efifb driver will fail to load in the event screen
info is not found and passed in by the bootloader, being that we will
never get to look for a dmi match. A primary reason for matching with dmi
is because not all bootloaders detect the video info properly. The
solution is that in the event of a dmi match, we should set
screen_info.orig_video_isVGA. Most bootloaders fail to set screen info on
Apple hardware, and this is a big problem for people who use Apple
hardware.
Tested on a MacBook SantaRosa with elilo-3.8 (vanilla) and resolves the
issue, the dmi match now works, EFI framebuffer now loads and video works.
Signed-off-by: Brian Maly <bmaly@redhat.com> Acked-by: Huang Ying <ying.huang@intel.com> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: Chandramouli Narayanan <mouli@linux.intel.com> Acked-by: Peter Jones <pjones@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Tue, 31 Mar 2009 22:25:48 +0000 (15:25 -0700)]
tridentfb: delete acceleration Kconfig option
Remove Kconfig option for tridentfb acceleration. The acceleration can be
switched off with modules "noaccel" parameter.
The acceleration for Trident chips was fixed in the 2.6.27 kernel.
Also, add CyberXXX and CyberBlade names to Kconfig option's name. It should
make easier to find the tridentfb choice for cyblafb driver's users. The
cyblafb driver has been replaced by the tridentfb driver.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Tue, 31 Mar 2009 22:25:47 +0000 (15:25 -0700)]
atyfb: speed up Mach64 cursor
Save one fifo entry on cursor enabling and disabling.
Save another fifo entry for FB_CUR_SETPOS operation by removing redundant one.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Tue, 31 Mar 2009 22:25:47 +0000 (15:25 -0700)]
fb: hide hardware cursor in graphics mode (Mach64)
A hardware cursor is left enabled in the fb_set_par() which is called when a
new console is created. This is inconsistent with software cursor's
behaviour.
Also, this makes a hardware cursor always visible in the Xfbdev (Xorg kdrive)
server.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Cc: Risto Suominen <risto.suominen@gmail.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Remove mutex from the nvidiafb_open/nvidiafb_release functions as these
operations are mutexed at fb layer.
Signed-off-by: Alessio Igor Bogani <abogani@texware.it> Cc: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Wolfgang Kroener [Tue, 31 Mar 2009 22:25:44 +0000 (15:25 -0700)]
radeonfb: suspend/resume for ATI Mobility Radeon RV350
Add suspend/resume for the Acer Travelmate 290D/292LMi with the following
graphic-chip:
01:00.0 VGA compatible controller [0300]: ATI Technologies Inc RV350
[Mobility Radeon 9600 M10] [1002:4e50] (prog-if 00 [VGA controller])
Subsystem: Acer Incorporated [ALI] TravelMate 290 [1025:005a]
Flags: bus master, 66MHz, medium devsel, latency 128, IRQ 10
Memory at a8000000 (32-bit, prefetchable) [size=128M]
I/O ports at c100 [size=256]
Memory at e0010000 (32-bit, non-prefetchable) [size=64K]
[virtual] Expansion ROM at a0000000 [disabled] [size=128K]
Capabilities: [58] AGP version 2.0
Capabilities: [50] Power Management version 2
Kernel driver in use: radeonfb
Kernel modules: radeonfb
Signed-off-by: Wolfgang Kroener <lkml@azog.de> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Felipe Contreras [Tue, 31 Mar 2009 22:25:42 +0000 (15:25 -0700)]
omapfb: fix argument of blank operation
The blank operation should receive FB_BLANK_POWERDOWN, not VESA_POWERDOWN.
Signed-off-by: Felipe Contreras <felipe.contreras@nokia.com> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Andrea Righi <righi.andrea@gmail.com> Acked-by: Trilok Soni <soni.trilok@gmail.com> Cc: Imre Deak <imre.deak@solidboot.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
uvesafb: fix selecting mode with the vbemode option
If the vbemode option is used, uvesafb calls fb_get_mode() without first
setting the resolution in info->var. This results in a division by zero
in fb_get_mode(), as evidenced e.g. in [1]. Fix this by ensuring the
info->var structure is populated before fb_get_mode() is called.
Signed-off-by: Michal Januszewski <spock@gentoo.org> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Tue, 31 Mar 2009 22:25:40 +0000 (15:25 -0700)]
fbdev: remove cyblafb driver
A tridentfb driver has all the functionality of the cyblafb driver without
the bugs of the latter.
Changes to the tridentfb driver:
- FBINFO_READS_FAST added to the tridentfb. The cyblafb used a blitter
for scrolling which is faster than color expansion on Cyberblade
chipsets. The blitter is slower on a discrete Blade3D core. Use the
blitter for scrolling in the tridentfb only for integrated Blade3D
cores. Now, scrolling speed is about equal for the tridentfb and the
cyblafb.
- a copyright notice addition is done on request of Jani Monoses (the
first author of the tridentfb).
Tested on AGP Blade3D card and PCChips
M787CLR motherboard: VIA C3 cpu +
VT8601 north bridge (aka Cyberblade/i1).
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Cc: "Jani Monoses" <jani@ubuntu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ben Dooks [Tue, 31 Mar 2009 22:25:39 +0000 (15:25 -0700)]
fb: add s3c-fb driver for newer Samsung SoC framebuffer devices
Add support for the newer Samsung devices, such as found in the S3C2443,
S3C6400 or S3C6410 series SoC.
It currently does not support all the alpha- or chroma-key options but it
will support more exporting more than one framebuffer ready for adding
overlay and blending functions.
Signed-off-by: Ben Dooks <ben-linux@fluff.org> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Roel Kluin [Tue, 31 Mar 2009 22:25:36 +0000 (15:25 -0700)]
vesafb: bitwise OR has higher precedence than ?:
Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Acked-by: Michal Januszewski <michalj@gmail.com> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Roel Kluin [Tue, 31 Mar 2009 22:25:35 +0000 (15:25 -0700)]
uvesafb: bitwise OR has higher precedence than ?:
Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Acked-by: Michal Januszewski <michalj@gmail.com> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Roel Kluin [Tue, 31 Mar 2009 22:25:34 +0000 (15:25 -0700)]
arkfb: fix misplaced parentheses
Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Acked-by: Ondrej Zajicek <santiago@crfreenet.org> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andres Salomon [Tue, 31 Mar 2009 22:25:33 +0000 (15:25 -0700)]
asiliantfb: fix cmap memory leaks
- fix cmap leak in removal path
- fix cmap leak when register_framebuffer fails
- check return value of fb_alloc_cmap
- don't continue with driver setup if register_framebuffer fails
[krzysztof.h1@wp.pl: spotted missing iounmap]
[randy.dunlap@oracle.com: move data declaration before any code] Signed-off-by: Andres Salomon <dilinger@debian.org> Cc: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Roel Kluin [Tue, 31 Mar 2009 22:25:32 +0000 (15:25 -0700)]
drivers/video/omap/hwa742.c: div reaches max_clk_div
With for(div = 0; div < max_clk_div; div++) { ... } div reaches max_clk_div.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Cc: Joe Perches <joe@perches.com> Acked-by: Trilok Soni <soni.trilok@gmail.com> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
fbdev: update s1d13xxxfb to differ between revisions and production ids
The s1d13xxx chip provides two values of identification value: the
Production id (e.g 13506/13505/13806..) and a revision number 0,1,2,3).
Together these can help us to differentiate between similiar setups.
This patch adds the proper way of grabbing both those values and save them
for future reference (in order to decide what functions a card supports,
e.g acceleration).
We also move away from the concept of all s1d13xxx = s1d13806 when we
really support alot more.
[akpm@linux-foundation.org: coding-style fixes]
[akpm@linux-foundation.org: simplify s1d13xxxfb_probe()] Signed-off-by: Kristoffer Ericson <kristoffer.ericson@gmail.com Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andres Salomon [Tue, 31 Mar 2009 22:25:30 +0000 (15:25 -0700)]
amifb: check fb_alloc_cmap return value and handle failure properly
Signed-off-by: Andres Salomon <dilinger@debian.org> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andres Salomon [Tue, 31 Mar 2009 22:25:29 +0000 (15:25 -0700)]
amba-clcd: fix cmap memory leaks
- fix cmap leak in removal path
- fix cmap leak when register_framebuffer fails
Signed-off-by: Andres Salomon <dilinger@debian.org> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Andres Salomon <dilinger@debian.org> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andres Salomon [Tue, 31 Mar 2009 22:25:28 +0000 (15:25 -0700)]
tgafb: fix cmap memory leak
Fix cmap leak when register_framebuffer fails.
Signed-off-by: Andres Salomon <dilinger@debian.org> Acked-by: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andres Salomon [Tue, 31 Mar 2009 22:25:27 +0000 (15:25 -0700)]
sunxvr500: fix cmap memory leaks
- fix cmap leak in removal path
- fix cmap leak when register_framebuffer fails
Signed-off-by: Andres Salomon <dilinger@debian.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andres Salomon [Tue, 31 Mar 2009 22:25:26 +0000 (15:25 -0700)]
valkyriefb: check fb_alloc_cmap return value and handle failure properly
Signed-off-by: Andres Salomon <dilinger@debian.org> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andres Salomon [Tue, 31 Mar 2009 22:25:26 +0000 (15:25 -0700)]
stifb: check fb_alloc_cmap return value and handle failure properly
Signed-off-by: Andres Salomon <dilinger@debian.org> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andres Salomon [Tue, 31 Mar 2009 22:25:25 +0000 (15:25 -0700)]
sstfb: check fb_alloc_cmap return value and handle failure properly
Signed-off-by: Andres Salomon <dilinger@debian.org> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andres Salomon [Tue, 31 Mar 2009 22:25:24 +0000 (15:25 -0700)]
sm501fb: check fb_alloc_cmap return value and handle failure properly
Signed-off-by: Andres Salomon <dilinger@debian.org> Acked-by: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andres Salomon [Tue, 31 Mar 2009 22:25:23 +0000 (15:25 -0700)]
skeletonfb: check fb_alloc_cmap return value and handle failure properly
Bad example code, no cookie!
Signed-off-by: Andres Salomon <dilinger@debian.org> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andres Salomon [Tue, 31 Mar 2009 22:25:22 +0000 (15:25 -0700)]
vfb: fix memory leaks in removal path
We were leaking the cmap memory.
Signed-off-by: Andres Salomon <dilinger@debian.org> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andres Salomon [Tue, 31 Mar 2009 22:25:22 +0000 (15:25 -0700)]
tridentfb: fix memory leaks in removal path
We were leaking the cmap memory.
Signed-off-by: Andres Salomon <dilinger@debian.org> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andres Salomon [Tue, 31 Mar 2009 22:25:21 +0000 (15:25 -0700)]
tdfxfb: fix memory leaks in removal path
We were leaking the cmap memory.
Signed-off-by: Andres Salomon <dilinger@debian.org> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andres Salomon [Tue, 31 Mar 2009 22:25:20 +0000 (15:25 -0700)]
drivers/video/sgivwfb.c: fix memory leaks in removal path
We were leaking both the cmap memory and the info struct memory.
Signed-off-by: Andres Salomon <dilinger@debian.org> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andrew Morton [Tue, 31 Mar 2009 22:25:19 +0000 (15:25 -0700)]
fbdev: uninline lock_fb_info()
Before:
text data bss dec hex filename
3648 2910 32 6590 19be drivers/video/backlight/backlight.o
3226 2812 32 6070 17b6 drivers/video/backlight/lcd.o
30990 16688 8480 56158 db5e drivers/video/console/fbcon.o
15488 8400 24 23912 5d68 drivers/video/fbmem.o
After:
text data bss dec hex filename
3537 2870 32 6439 1927 drivers/video/backlight/backlight.o
3131 2772 32 5935 172f drivers/video/backlight/lcd.o
30876 16648 8480 56004 dac4 drivers/video/console/fbcon.o
15506 8400 24 23930 5d7a drivers/video/fbmem.o
Cc: Andrea Righi <righi.andrea@gmail.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andrea Righi [Tue, 31 Mar 2009 22:25:18 +0000 (15:25 -0700)]
fbmem: fix fb_info->lock and mm->mmap_sem circular locking dependency
Fix a circular locking dependency in the frame buffer console driver
pushing down the mutex fb_info->lock.
Circular locking dependecies occur calling the blocking
fb_notifier_call_chain() with fb_info->lock held. Notifier callbacks can
try to acquire mm->mmap_sem, while fb_mmap() acquires the locks in the
reverse order mm->mmap_sem => fb_info->lock.
Tested-by: Andrey Borzenkov <arvidjaar@mail.ru> Signed-off-by: Andrea Righi <righi.andrea@gmail.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Tue, 31 Mar 2009 22:25:17 +0000 (15:25 -0700)]
cirrusfb: fix interlaced modes
Fix calculations of timings for interlaced modes.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Tue, 31 Mar 2009 22:25:17 +0000 (15:25 -0700)]
cirrusfb: fix threshold register mask for Laguna chips
Fix threshold register mask for Laguna chips otherwise some 8bpp modes are
garbled after selecting a 24bpp mode.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Tue, 31 Mar 2009 22:25:16 +0000 (15:25 -0700)]
cirrusfb: GD5434 (aka SD64) support fixed
Fix handling of the Cirrus Logic GD5434 chip. Distinguish this chip from the
GD5430. It allows detecting memory size for both models correctly.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Tue, 31 Mar 2009 22:25:15 +0000 (15:25 -0700)]
cirrusfb: set MCLK in one place
A memory clock (MCLK) is set at various places. Move the setting into one
place.
Set the MCLK only for Zorro cards as the x86 cards should be initialized by
BIOS.
Improve handling of the GD5434 (SD64).
Kill one annoying debug output "virtual offset: ...".
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Tue, 31 Mar 2009 22:25:15 +0000 (15:25 -0700)]
cirrusfb: add accelerator constant
Add an accelerator constant so almost all Cirrus are recognized as
accelerators by the fbset command.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Tue, 31 Mar 2009 22:25:14 +0000 (15:25 -0700)]
cirrusfb: fix clock doubling
Cirrus' Alpine and Picasso4 chips uses DAC clock doubling to achieve full
range of pixclock frequencies.
[akpm@linux-foundation.org: fix spelling, use usual comment layout] Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Tue, 31 Mar 2009 22:25:13 +0000 (15:25 -0700)]
cirrusfb: use 24bpp instead of 32bpp
The 32bpp is supported only on the latest Cirrus Logic chips. Use the
24bpp which is supported at least since Alpine chips (GD543x).
Change 32bpp mode setting to 24bpp mode. Change acceleration as well.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Tue, 31 Mar 2009 22:25:13 +0000 (15:25 -0700)]
cirrusfb: GD5446 fixes
Various fixes to make Cirrus GD5446 chip work.
Another Cirrus chip works with the cirrusfb. The gd5446 seems very
similar to Alpine chips.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Tue, 31 Mar 2009 22:25:12 +0000 (15:25 -0700)]
cirrusfb: fix error paths in cirrusfb_xxx_register()
Balance iomap and iounmap and alloc and free calls in case of error druing
device register (probing).
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Tue, 31 Mar 2009 22:25:11 +0000 (15:25 -0700)]
cirrusfb: add imageblit function
Add hardware color expansion (imageblit) function. It roughly doubles
scrolling speed of my Alpine card (GD5430).
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Tue, 31 Mar 2009 22:25:11 +0000 (15:25 -0700)]
cirrusfb: acceleration improvements
- Fix color expansion for 16bpp and 32bpp modes in the
cirrusfb_RectFill().
- Make a function with a common blitter code (cirrusfb_set_blitter).
- Add fb_sync function to allow a higher layer synchronize with the
blitter.
- Kill one redundant blitter reset.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Tue, 31 Mar 2009 22:25:10 +0000 (15:25 -0700)]
cirrusfb: various Laguna fixes
- The Laguna GD5465 (AGP) has one register more than non-AGP chips.
Recognize the AGP version and write a tile control register only on the
AGP version. Tested only on an AGP card.
- Bump up RAMDAC frequencies after X11 code. This allow to drive a flat
panel resolution 1680x1050 at 16bpp from the 4MB card.
- Fix exit path in the cirrusfb_pci_register() in case of error.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Tue, 31 Mar 2009 22:25:09 +0000 (15:25 -0700)]
cirrusfb: check_var improvements
Break cirrusfb_decode_var() function into two parts:
cirrusfb_check_pixclock() which can be called from the
cirrusfb_check_var() aand merge rest into the cirrusfb_set_par_foo().
This allows rejecting modes with too high pixclock before before any
change to hardware state (and a console is messed up).
Also, fix RGB field's lengths for 8bpp modes to correct ones so X11 works
with fbdev driver with cirrusfb.
Kill some redundant function calls or register loads.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Tue, 31 Mar 2009 22:25:08 +0000 (15:25 -0700)]
cirrusfb: Laguna chipset 8bpp fix
Fix 8bpp mode by adding handling of the Laguna chipsets to various places
and stop trashing a HDR register which probably does not exist on the
Laguna.
Fix compilation warnings about uninitialized variables also.
Finally, all 8bpp, 16bpp and 32bpp modes work on the Laguna chipset.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Tue, 31 Mar 2009 22:25:08 +0000 (15:25 -0700)]
cirrusfb: various improvements
Various improvements to the code:
- kill a structure with only one
field: multiplexing and use the
field directly
- move the cirrusfb_ops structure
down the file to kill forward
declarations
- move cirrusfb_init() to kill
forward declaration
- kill register loads done already
in the init_vgachip()
- kill assigments done by higher
layer in the cirrusfb_pan_display()
- do not overwrite line pitch bit in
the CL_CRT1D register
- kill btype variables if they were
used only once or twice
- add cpu_relax() in the busy waiting
loop
The fix to the CL_CRT1D register handling makess the 1024x768 32bpp mode
work. Previously, only lower resolution modes have worked with 32bpp.
Signed-off-by: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Tue, 31 Mar 2009 22:25:07 +0000 (15:25 -0700)]
cirrusfb: use 5-6-5 RGB for 16bpp mode
Use the 5-6-5 RGB mode instead of the 5-5-5 mode at 16bpp depth.
It fixes colors in the 16bpp modes on Cirrus Laguna chips.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Cc: Geert Uytterhoeven <geert.uytterhoeven@gmail.com> Cc: Arthur Marsh <arthur.marsh@internode.on.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Tue, 31 Mar 2009 22:25:06 +0000 (15:25 -0700)]
cirrusfb: do not calculate line length twice
A line length is calculated twice: first in the cirrusfb_decode_var() then
in the cirrusfb_set_par_foo().
Use the first calculated value. A nice side effect is that 32bpp mode
works now.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Cc: Geert Uytterhoeven <geert.uytterhoeven@gmail.com> Cc: Arthur Marsh <arthur.marsh@internode.on.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krzysztof Helt [Tue, 31 Mar 2009 22:25:05 +0000 (15:25 -0700)]
cirrusfb: add mmio registers for Laguna chipsets
The Laguna chipsets use special registers which are available through the
mmio area. The cirrusfb driver does not use memory mapped registers for
the PCI cards.
Add the memory mapped area for Laguna chipsets and add basic usage of the
special Laguna registers after SVGALIB code.
This gives readable console at 16bpp on the GD-5465 (Laguna AGP). The
8bpp and 32bpp depths are still broken.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
projects / mirror_ubuntu-focal-kernel.git / log