Andreas Färber [Sat, 1 Jul 2017 21:29:30 +0000 (23:29 +0200)]
ARM: owl: smp: Drop bogus holding pen
The S500 SoC can start secondary CPUs without busy-looping for pen_release,
so simplify the SMP code compared to the LeMaker kernel tree.
Fixes: 172067e0bc87 ("ARM: owl: Implement CPU enable-method for S500") Suggested-by: Arnd Bergmann <arnd@arndb.de> Cc: David Liu <liuwei@actions-semi.com> Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Arnd Bergmann [Thu, 29 Jun 2017 15:33:41 +0000 (17:33 +0200)]
Merge tag 'actions-arm-soc+sps-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/afaerber/linux-actions into next/soc
Pull "Actions Semi ARM SoC for v4.13 #2" from Andreas Färber:
This adds SMP code to bring up the remaining S500 CPU cores
by reusing a helper factored out of the SPS power domains driver.
* tag 'actions-arm-soc+sps-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/afaerber/linux-actions:
ARM: owl: smp: Implement SPS power-gating for CPU2 and CPU3
soc: actions: owl-sps: Factor out owl_sps_set_pg() for power-gating
soc: actions: Add Owl SPS
dt-bindings: power: Add Owl SPS power domains
Olof Johansson [Mon, 19 Jun 2017 06:12:36 +0000 (23:12 -0700)]
Merge tag 'at91-4.12-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux into next/soc
Bring in the fixes branch to avoid a merge conflict between new SoC options and
the build fix adding CONFIG_AMR_CPU_SUSPEND.
Fixes for 4.12:
Fix two compilation issues
* tag 'at91-4.12-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
ARM: at91: select CONFIG_ARM_CPU_SUSPEND
memory: atmel-ebi: mark PM ops as __maybe_unused
Olof Johansson [Mon, 19 Jun 2017 06:06:06 +0000 (23:06 -0700)]
Merge tag 'imx-soc-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/soc
The i.MX SoC updates for 4.13:
- Select GPCv2 for i.MX7 SoCs to get imx-gpcv2 irqchip driver built
for i.MX7 platforms by default.
- A couple of patches from Leonard to add IMX6ULL cpu check and get
suspend/resume work on IMX6ULL.
* tag 'imx-soc-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: imx6ull: Make suspend/resume work like on 6ul
ARM: imx: Add MXC_CPU_IMX6ULL and cpu_is_imx6ull
ARM: imx: Select GPCv2 for i.MX7
Olof Johansson [Mon, 19 Jun 2017 05:38:05 +0000 (22:38 -0700)]
Merge tag 'qcom-soc-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux into next/soc
Qualcomm ARM Based SoC Updates for v4.13
* Add debug UART addresses for IPQ4019
* tag 'qcom-soc-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux:
ARM: debug: qcom: add UART addresses to Kconfig help for IPQ4019
Olof Johansson [Mon, 19 Jun 2017 03:48:34 +0000 (20:48 -0700)]
Merge tag 'pxa-for-4.13' of https://github.com/rjarzmik/linux into next/soc
This is the pxa changes for v4.13 cycle.
This cycle is a minor fixes one, with :
- Coccinelle found improvements
- magician getting touchscreen driver support.
* tag 'pxa-for-4.13' of https://github.com/rjarzmik/linux:
ARM: pxa: Delete an error message for a failed memory allocation in pxa3xx_u2d_probe()
ARM: pxa: Improve a size determination in pxa3xx_u2d_probe()
ARM: pxa: Delete an error message for a failed memory allocation in pxa_pm_init()
ARM: pxa: magician: Add support for ADS7846 touchscreen
Olof Johansson [Mon, 19 Jun 2017 03:32:44 +0000 (20:32 -0700)]
Merge tag 'omap-for-v4.13/omap1-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc
A series of omap1 changes for issues found by Coccinelle.
* tag 'omap-for-v4.13/omap1-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP1: Fix a typo in a comment line
ARM: OMAP1: Delete an error message for a failed memory allocation in omap1_dm_timer_init()
ARM: OMAP1: DMA: Delete an unnecessary return statement in omap1_show_dma_caps()
ARM: OMAP1: DMA: Delete an error message for a failed memory allocation in omap1_system_dma_init()
ARM: OMAP1: DMA: Improve a size determination in omap1_system_dma_init()
- Jon updates the Kconfig entry for Northstar Plus to have THERMAL and THERMAL_OF
selected in order to get the NS/NSP thermal driver dependencies to be satistfied
* tag 'arm-soc/for-4.13/soc' of http://github.com/Broadcom/stblinux:
ARM: BCM: Enable thermal support for NSP SoCs
Olof Johansson [Mon, 19 Jun 2017 02:08:43 +0000 (19:08 -0700)]
Merge tag 'v4.13-rockchip-soc32-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into next/soc
Add support for the RV1108 and its debug uart
* tag 'v4.13-rockchip-soc32-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
ARM: rockchip: enable support for RV1108 SoC
ARM: debug: add low level debug uart for rv1108
ARM: shmobile: pm-rmobile: Use GENPD_FLAG_ALWAYS_ON
Improve handling of always-on PM domains by using the
GENPD_FLAG_ALWAYS_ON flag introduced in commit ffaa42e8a40b7f10 ("PM /
Domains: Enable users of genpd to specify always on PM domains").
Note that the PM domain containing the serial console is still handled
locally.
Unfortunately the DES module is only documented partly
in the OMAP4430 TRM. I found an old patch from Joel,
which I took over and updated for currently mainline.
Signed-off-by: Joel Fernandes <joelf@ti.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Acked-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
This adds the hwmod entry for the second AES module
available on OMAP4.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Acked-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Unfortunately the AES module is only documented partly
in the OMAP4430 TRM. I found an old patch from Joel,
which I took over and updated for currently mainline.
Signed-off-by: Joel Fernandes <joelf@ti.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Acked-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Markus Elfring [Sat, 3 Jun 2017 19:43:11 +0000 (21:43 +0200)]
ARM: pxa: Improve a size determination in pxa3xx_u2d_probe()
Replace the specification of a data structure by a pointer dereference
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Petr Cvek [Mon, 13 Mar 2017 08:05:49 +0000 (09:05 +0100)]
ARM: pxa: magician: Add support for ADS7846 touchscreen
This patch adds a support for ADS7846 touchscreen driver.
The basic functionality was tested, x_plate_ohms and y_plate_ohms were
physically measured. The value pressure_max was empirically set to match
the measured range, which is affected by x_plate_ohms and ADS samples.
The value of keep_vref_on should be set. A tested model (T-Mobile MDA
Compact PM10A) doesn't seem to use Vref pin as the input from an external
source. On this model the unset keep_vref_on cause high jitter of measured
values.
SPI framing pin (gpio_cs) must be used in GPIO mode due to an incompatible
autoframing of PXA27x controller and ADS7846 device.
Signed-off-by: Petr Cvek <petr.cvek@tul.cz> Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Arnd Bergmann [Fri, 9 Jun 2017 10:18:02 +0000 (12:18 +0200)]
ARM: at91: fix at91_suspend_entering_slow_clock link error
When CONFIG_ARCH_AT91 is enabled, but none of the specific SoC support
is in use, some at91 specific drivers fail to link:
drivers/tty/serial/atmel_serial.o: In function `atmel_serial_suspend':
atmel_serial.c:(.text.atmel_serial_suspend+0x1e): undefined reference to `at91_suspend_entering_slow_clock'
drivers/usb/host/ohci-at91.o: In function `ohci_hcd_at91_drv_suspend':
ohci-at91.c:(.text.ohci_hcd_at91_drv_suspend+0x12): undefined reference to `at91_suspend_entering_slow_clock'
drivers/usb/gadget/udc/at91_udc.o: In function `at91udc_suspend':
at91_udc.c:(.text.at91udc_suspend+0x26): undefined reference to `at91_suspend_entering_slow_clock'
This changes the at91_suspend_entering_slow_clock hack once more, adding
an alternative inline implementation that is used exactly in those cases
that don't provide the normal implementation.
arm: meson: select the clock controller for Meson8
Select COMMON_CLK_MESON8B also for MACH_MESON8 since the Meson8b clock
controller driver can also be used on Meson8 SoCs now that we have a
separate compatible for it.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Acked-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Tony Lindgren [Wed, 31 May 2017 22:51:39 +0000 (15:51 -0700)]
ARM: OMAP2+: Remove unused legacy code for n8x0
We are now booting all mach-omap2 in device tree only mode.
Any code that is only called in legacy boot mode where
of_have_populated_dt() is not set is safe to remove now.
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
[tony@atomide.com: left out probe changes to avoid merge conflict] Signed-off-by: Tony Lindgren <tony@atomide.com>
Tony Lindgren [Wed, 31 May 2017 22:51:38 +0000 (15:51 -0700)]
ARM: OMAP2+: Remove unused legacy code for watchdog
We are now booting all mach-omap2 in device tree only mode.
Any code that is only called in legacy boot mode where
of_have_populated_dt() is not set is safe to remove now.
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tony Lindgren <tony@atomide.com>
Tony Lindgren [Wed, 31 May 2017 22:51:37 +0000 (15:51 -0700)]
ARM: OMAP2+: Remove unused legacy code for interconnects
We are now booting all mach-omap2 in device tree only mode.
Any code that is only called in legacy boot mode where
of_have_populated_dt() is not set is safe to remove now.
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tony Lindgren <tony@atomide.com>
Tony Lindgren [Wed, 31 May 2017 22:51:36 +0000 (15:51 -0700)]
ARM: OMAP2+: Remove unused legacy code for PRM
We are now booting all mach-omap2 in device tree only mode.
Any code that is only called in legacy boot mode where
of_have_populated_dt() is not set is safe to remove now.
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tony Lindgren <tony@atomide.com>
Tony Lindgren [Wed, 31 May 2017 22:51:34 +0000 (15:51 -0700)]
ARM: OMAP2+: Remove unused legacy code for io.c
We are now booting all mach-omap2 in device tree only mode.
Any code that is only called in legacy boot mode where
of_have_populated_dt() is not set is safe to remove now.
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tony Lindgren <tony@atomide.com>
Tony Lindgren [Wed, 31 May 2017 22:51:33 +0000 (15:51 -0700)]
ARM: OMAP2+: Remove unused legacy code for McBSP
We are now booting all mach-omap2 in device tree only mode.
Any code that is only called in legacy boot mode where
of_have_populated_dt() is not set is safe to remove now.
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tony Lindgren <tony@atomide.com>
Markus Elfring [Sat, 3 Jun 2017 17:09:07 +0000 (19:09 +0200)]
ARM: OMAP2+: Use kcalloc() in sr_set_nvalues()
* A multiplication for the size determination of a memory allocation
indicated that an array data structure should be processed.
Thus use the corresponding function "kcalloc".
This issue was detected by using the Coccinelle software.
* Replace the specification of a data structure by a pointer dereference
to make the corresponding size determination a bit safer according to
the Linux coding style convention.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Tony Lindgren <tony@atomide.com>
Markus Elfring [Sat, 3 Jun 2017 17:02:24 +0000 (19:02 +0200)]
ARM: OMAP2+: Improve a size determination in sr_dev_init()
Replace the specification of a data structure by a pointer dereference
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Tony Lindgren <tony@atomide.com>
Tony Lindgren [Wed, 31 May 2017 22:51:32 +0000 (15:51 -0700)]
ARM: OMAP2+: Remove unused legacy code for device init
We are now booting all mach-omap2 in device tree only mode.
Any code that is only called in legacy boot mode where
of_have_populated_dt() is not set is safe to remove now.
Note that omap_init_sti() won't do anything so we can
remove omap2_init_devices() as pointed out by Sebastian
Reichel <sebastian.reichel@collabora.co.uk>.
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tony Lindgren <tony@atomide.com>
Tony Lindgren [Wed, 31 May 2017 22:51:31 +0000 (15:51 -0700)]
ARM: OMAP2+: Remove unused legacy code for PMU
We are now booting all mach-omap2 in device tree only mode.
Any code that is only called in legacy boot mode where
of_have_populated_dt() is not set is safe to remove now.
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tony Lindgren <tony@atomide.com>
Tony Lindgren [Wed, 31 May 2017 22:51:29 +0000 (15:51 -0700)]
ARM: OMAP2+: Remove unused legacy code for opp
We are now booting all mach-omap2 in device tree only mode.
Any code that is only called in legacy boot mode where
of_have_populated_dt() is not set is safe to remove now.
Note that the volt_data is still being used.
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tony Lindgren <tony@atomide.com>
Markus Elfring [Thu, 1 Jun 2017 19:48:11 +0000 (21:48 +0200)]
ARM: OMAP1: DMA: Improve a size determination in omap1_system_dma_init()
Replace the specification of a data structure by a pointer dereference
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Tony Lindgren <tony@atomide.com>
Tero Kristo [Wed, 31 May 2017 15:00:03 +0000 (18:00 +0300)]
ARM: OMAP2+: hwmod: populate clkctrl clocks for hwmods if available
If clkctrl clocks are available on a device, populate these automatically
to replace hwmod main_clk info. First, the patch parses all "ti,clkctrl"
compatible nodes and maps these against existing clockdomain data. Once
done, individual hwmod init routines can search for a clkctrl clock
handle based on the clockdomain info and the created mapping.
This patch also drops the obsolete "_mod_ck" search as the implementation
required for this was not accepted usptream.
Signed-off-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Tero Kristo [Wed, 31 May 2017 15:00:01 +0000 (18:00 +0300)]
ARM: omap2+: clockdomain: add clkdm_xlate_address
This new function can be used to get the physical address of a
clockdomain. Required for mapping the clkctrl clocks under hwmod
without modification to DT data.
Signed-off-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Tero Kristo [Wed, 31 May 2017 15:00:00 +0000 (18:00 +0300)]
ARM: OMAP2+: PRCM: store also physical addresses for instances
In some cases the physical address info is needed, so store this
under the existing cm*_base, prm_base and prcm_mpu_base variables.
These are converted now to structs that contain both virtual and
physical address base for the instance.
Signed-off-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Tero Kristo [Wed, 31 May 2017 14:59:59 +0000 (17:59 +0300)]
ARM: OMAP4: hwmod_data: add opt clks for dss_hdmi and dss_venc
These extra optional clocks are required as main clock for these modules
are going to be routed to the main module clock. Otherwise, the hdmi / tv
clocks are not going to be enabled during usage, leading to failure.
Signed-off-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Tero Kristo [Wed, 31 May 2017 14:59:58 +0000 (17:59 +0300)]
ARM: OMAP2+: timer: add support for fetching fck handle from DT
The mux clock handle shall be provided via "fck" DT handle. This avoids
the need to lookup the main clock via hwmod core, which will not work
with the clkctrl clock support anymore; the main clock is not going to
be a mux.
Signed-off-by: Tero Kristo <t-kristo@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Tony Lindgren [Wed, 31 May 2017 22:51:30 +0000 (15:51 -0700)]
ARM: OMAP2+: Remove unused legacy code for timer
We are now booting all mach-omap2 in device tree only mode.
Any code that is only called in legacy boot mode where
of_have_populated_dt() is not set is safe to remove now.
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Tony Lindgren <tony@atomide.com>
Arnd Bergmann [Wed, 24 May 2017 15:58:34 +0000 (17:58 +0200)]
ARM: s3c64xx: Do not select ARM_AMBA from S3C64XX_PL080
While trying a fix a build warning unrelated to s3c64xx, I ran into
a circular dependency:
drivers/i2c/Kconfig:7: symbol I2C is selected by FB_DDC
drivers/video/fbdev/Kconfig:63: symbol FB_DDC is selected by FB_CYBER2000_DDC
drivers/video/fbdev/Kconfig:381: symbol FB_CYBER2000_DDC depends on FB_CYBER2000
drivers/video/fbdev/Kconfig:369: symbol FB_CYBER2000 depends on FB
drivers/video/fbdev/Kconfig:5: symbol FB is selected by DRM_KMS_FB_HELPER
drivers/gpu/drm/Kconfig:72: symbol DRM_KMS_FB_HELPER is selected by DRM_KMS_CMA_HELPER
drivers/gpu/drm/Kconfig:137: symbol DRM_KMS_CMA_HELPER is selected by DRM_PL111
drivers/gpu/drm/pl111/Kconfig:1: symbol DRM_PL111 depends on ARM_AMBA
drivers/amba/Kconfig:1: symbol ARM_AMBA is selected by S3C64XX_PL080
arch/arm/mach-s3c64xx/Kconfig:42: symbol S3C64XX_PL080 default value contains DMADEVICES
drivers/dma/Kconfig:5: symbol DMADEVICES is selected by SND_SOC_SH4_SIU
sound/soc/sh/Kconfig:29: symbol SND_SOC_SH4_SIU is selected by SND_SIU_MIGOR
sound/soc/sh/Kconfig:59: symbol SND_SIU_MIGOR depends on I2C
The I2C and FB dependencies are hard to untangle, but I notice that
S3C64XX_PL080 selecting ARM_AMBA is one piece of the puzzle that
can easily be avoided, as ARCH_S3C64XX already select ARM_AMBA.
Removing the redundant 'select' now can help us in the future if we
run into a variation of the same dependency.
Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Linus Torvalds [Sun, 28 May 2017 23:18:27 +0000 (16:18 -0700)]
Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal
Pull thermal SoC management fixes from Eduardo Valentin:
- fixes to TI SoC driver, Broadcom, qoriq
- small sparse warning fix on thermal core
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
thermal: broadcom: ns-thermal: default on iProc SoCs
ti-soc-thermal: Fix a typo in a comment line
ti-soc-thermal: Delete error messages for failed memory allocations in ti_bandgap_build()
ti-soc-thermal: Use devm_kcalloc() in ti_bandgap_build()
thermal: core: make thermal_emergency_poweroff static
thermal: qoriq: remove useless call for of_thermal_get_trip_points()
Linus Torvalds [Sat, 27 May 2017 16:39:09 +0000 (09:39 -0700)]
Merge tag 'tty-4.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial fixes from Greg KH:
"Here are some serial and tty fixes for 4.12-rc3. They are a bit bigger
than normal, which is why I had them bake in linux-next for a few
weeks and didn't send them to you for -rc2.
They revert a few of the serdev patches from 4.12-rc1, and bring
things back to how they were in 4.11, to try to make things a bit more
stable there. Rob and Johan both agree that this is the way forward,
so this isn't people squabbling over semantics. Other than that, just
a few minor serial driver fixes that people have had problems with.
All of these have been in linux-next for a few weeks with no reported
issues"
* tag 'tty-4.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
serial: altera_uart: call iounmap() at driver remove
serial: imx: ensure UCR3 and UFCR are setup correctly
MAINTAINERS/serial: Change maintainer of jsm driver
serial: enable serdev support
tty/serdev: add serdev registration interface
serdev: Restore serdev_device_write_buf for atomic context
serial: core: fix crash in uart_suspend_port
tty: fix port buffer locking
tty: ehv_bytechan: clean up init error handling
serial: ifx6x60: fix use-after-free on module unload
serial: altera_jtaguart: adding iounmap()
serial: exar: Fix stuck MSIs
serial: efm32: Fix parity management in 'efm32_uart_console_get_options()'
serdev: fix tty-port client deregistration
Revert "tty_port: register tty ports with serdev bus"
drivers/tty: 8250: only call fintek_8250_probe when doing port I/O
Linus Torvalds [Sat, 27 May 2017 16:28:34 +0000 (09:28 -0700)]
Merge tag 'powerpc-4.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Fix running SPU programs on Cell, and a few other minor fixes.
Thanks to Alistair Popple, Jeremy Kerr, Michael Neuling, Nicholas
Piggin"
* tag 'powerpc-4.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc: Add PPC_FEATURE userspace bits for SCV and DARN instructions
powerpc/spufs: Fix hash faults for kernel regions
powerpc: Fix booting P9 hash with CONFIG_PPC_RADIX_MMU=N
powerpc/powernv/npu-dma.c: Fix opal_npu_destroy_context() call
selftests/powerpc: Fix TM resched DSCR test with some compilers
Linus Torvalds [Sat, 27 May 2017 16:17:58 +0000 (09:17 -0700)]
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"A series of fixes for X86:
- The final fix for the end-of-stack issue in the unwinder
- Handle non PAT systems gracefully
- Prevent access to uninitiliazed memory
- Move early delay calaibration after basic init
- Fix Kconfig help text
- Fix a cross compile issue
- Unbreak older make versions"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/timers: Move simple_udelay_calibration past init_hypervisor_platform
x86/alternatives: Prevent uninitialized stack byte read in apply_alternatives()
x86/PAT: Fix Xorg regression on CPUs that don't support PAT
x86/watchdog: Fix Kconfig help text file path reference to lockup watchdog documentation
x86/build: Permit building with old make versions
x86/unwind: Add end-of-stack check for ftrace handlers
Revert "x86/entry: Fix the end of the stack for newly forked tasks"
x86/boot: Use CROSS_COMPILE prefix for readelf
Linus Torvalds [Sat, 27 May 2017 16:02:41 +0000 (09:02 -0700)]
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf tooling fixes from Thomas Gleixner:
- Synchronization of tools and kernel headers
- A series of fixes for perf report addressing various failures:
* Handle invalid maps proper
* Plug a memory leak
* Handle frames and callchain order correctly
- Fixes for handling inlines and children mode
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
tools/include: Sync kernel ABI headers with tooling headers
perf tools: Put caller above callee in --children mode
perf report: Do not drop last inlined frame
perf report: Always honor callchain order for inlined nodes
perf script: Add --inline option for debugging
perf report: Fix off-by-one for non-activation frames
perf report: Fix memory leak in addr2line when called by addr2inlines
perf report: Don't crash on invalid maps in `-g srcline` mode
Linus Torvalds [Sat, 27 May 2017 15:30:30 +0000 (08:30 -0700)]
Merge tag 'trace-v4.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull ftrace fixes from Steven Rostedt:
"There's been a few memory issues found with ftrace.
One was simply a memory leak where not all was being freed that should
have been in releasing a file pointer on set_graph_function.
Then Thomas found that the ftrace trampolines were marked for
read/write as well as execute. To shrink the possible attack surface,
he added calls to set them to ro. Which also uncovered some other
issues with freeing module allocated memory that had its permissions
changed.
Kprobes had a similar issue which is fixed and a selftest was added to
trigger that issue again"
* tag 'trace-v4.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
x86/ftrace: Make sure that ftrace trampolines are not RWX
x86/mm/ftrace: Do not bug in early boot on irqs_disabled in cpu_flush_range()
selftests/ftrace: Add a testcase for many kprobe events
kprobes/x86: Fix to set RWX bits correctly before releasing trampoline
ftrace: Fix memory leak in ftrace_graph_release()
Thomas Gleixner [Thu, 25 May 2017 08:57:51 +0000 (10:57 +0200)]
x86/ftrace: Make sure that ftrace trampolines are not RWX
ftrace use module_alloc() to allocate trampoline pages. The mapping of
module_alloc() is RWX, which makes sense as the memory is written to right
after allocation. But nothing makes these pages RO after writing to them.
Add proper set_memory_rw/ro() calls to protect the trampolines after
modification.
Interrupts should not be enabled at this early in the boot process. It is
also fine to leave interrupts enabled during this time as there's only one
CPU running, and on_each_cpu() means to only run on the current CPU.
If early_boot_irqs_disabled is set, it is safe to run cpu_flush_range() with
interrupts disabled. Don't trigger a BUG_ON() in that case.
Masami Hiramatsu [Fri, 26 May 2017 04:44:54 +0000 (13:44 +0900)]
selftests/ftrace: Add a testcase for many kprobe events
Add a testcase to test kprobes via ftrace interface
with many concurrent kprobe events.
This tries to add many kprobe events (up to 256) on
kernel functions. To avoid making ftrace-based
kprobes (kprobes on fentry), it skips first N bytes
(on x86 N=5, on ppc or arm N=4) of function entry.
After that, it enables all those events, disable it,
and remove it.
Since the unoptimization buffer reclaiming will
be delayed, after removing events, it will wait
enough time.
Masami Hiramatsu [Thu, 25 May 2017 10:38:17 +0000 (19:38 +0900)]
kprobes/x86: Fix to set RWX bits correctly before releasing trampoline
Fix kprobes to set(recover) RWX bits correctly on trampoline
buffer before releasing it. Releasing readonly page to
module_memfree() crash the kernel.
Without this fix, if kprobes user register a bunch of kprobes
in function body (since kprobes on function entry usually
use ftrace) and unregister it, kernel hits a BUG and crash.
Luis Henriques [Thu, 25 May 2017 15:20:38 +0000 (16:20 +0100)]
ftrace: Fix memory leak in ftrace_graph_release()
ftrace_hash is being kfree'ed in ftrace_graph_release(), however the
->buckets field is not. This results in a memory leak that is easily
captured by kmemleak:
Linus Torvalds [Fri, 26 May 2017 23:45:13 +0000 (16:45 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input layer fixes from Dmitry Torokhov:
"Just a few fixups to a couple of drivers"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: elan_i2c - ignore signals when finishing updating firmware
Input: elan_i2c - clear INT before resetting controller
Input: atmel_mxt_ts - add T100 as a readable object
Input: edt-ft5x06 - increase allowed data range for threshold parameter
projects / mirror_ubuntu-hirsute-kernel.git / log