GitHub/LineageOS/android_kernel_motorola_exynos9610.git
12 years agoMerge branch 'clk-3.7' of git://git.linaro.org/people/mturquette/linux into next/dt
Olof Johansson [Thu, 13 Sep 2012 06:03:37 +0000 (23:03 -0700)]
Merge branch 'clk-3.7' of git://git.linaro.org/people/mturquette/linux into next/dt

* 'clk-3.7' of git://git.linaro.org/people/mturquette/linux:
  clk: add of_clk_src_onecell_get() support
  clk: ux500: Define smp_twd clock for u8500
  mfd: dbx500: Provide a more accurate smp_twd clock
  clk: ux500: Support for prmcu_rate clock
  clk: Provide option for clk_get_rate to issue hw for new rate
  clock: max77686: Add driver for Maxim 77686 32Khz crystal oscillator.
  ARM: ux500: Switch to use common clock framework
  clk: ux500: Clock definitions for u8500
  clk: ux500: First version of clock definitions for ux500
  clk: ux500: Adapt PRCMU and PRCC clocks for common clk
  clk: versatile: make config option boolean
  clk: add Loongson1B clock support
  arm: mmp: make all SOCs use common clock by default
  clk: mmp: add clock definition for mmp2
  clk: mmp: add clock definition for pxa910
  clk: mmp: add clock definition for pxa168
  clk: mmp: add mmp specific clocks
  clk: convert ARM RealView to common clk
  clk: prima2: move from arch/arm/mach to drivers/clk
  ARM: PRIMA2: convert to common clk and finish full clk tree

12 years agoMerge tag 'mxs-dt-3.7' of git://git.linaro.org/people/shawnguo/linux-2.6 into next/dt
Olof Johansson [Thu, 13 Sep 2012 05:47:07 +0000 (22:47 -0700)]
Merge tag 'mxs-dt-3.7' of git://git.linaro.org/people/shawnguo/linux-2.6 into next/dt

- Remove all board files and make mach-mxs a DT-only platform
- Some dts file formatting and style fixing
- DTS update for additional boards and devices

* tag 'mxs-dt-3.7' of git://git.linaro.org/people/shawnguo/linux-2.6: (28 commits)
  ARM: dts: cfa10049: Add the 74HC595 gpio expanders
  ARM: dts: m28evk: Fix MMC WP pin being inverted
  ARM: dts: cfa10049: Add SSP3 to the 10049 board
  ARM: dts: mxs: Add missing address and size cells in SSP nodes
  ARM: mx28evk: Add I2C EEPROM support
  ARM: dts: mxs: Enable USB1 Host on the CFA-10049 expansion board
  ARM: dts: mxs: Add the second I2C adapter to the CFA10049 expansion board
  ARM: dts: mxs: Add I2C1 muxing options for imx28
  ARM: mx28evk: Add LRADC support
  ARM: mx28evk: Add SPI flash support
  ARM: mxs: Update DENX M28 machine and dts file
  ARM: mx28: Add USB PHY overcurrent pinmux
  ARM: mx28: Add SPI 2 pinmux into imx28.dtsi
  ARM: dts: mxs: Add pwm4 muxing options for imx28
  ARM: dts: mxs: Add alternative I2C muxing options for imx28
  ARM: olinuxino: Add gpio-led support
  ARM: mxs: Let mmc0 pin detect be generic
  ARM: mxs: Rename 'hog-gpios'
  ARM: mxs: remove iomux driver
  ARM: mxs: remove platform device codes
  ...

12 years agoARM: dts: cfa10049: Add the 74HC595 gpio expanders
Maxime Ripard [Mon, 10 Sep 2012 20:35:41 +0000 (22:35 +0200)]
ARM: dts: cfa10049: Add the 74HC595 gpio expanders

Add the two daisy-chains of 74hc595s shift registers available on the
CFA-10049.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
12 years agoclk: add of_clk_src_onecell_get() support
Shawn Guo [Wed, 22 Aug 2012 13:36:27 +0000 (21:36 +0800)]
clk: add of_clk_src_onecell_get() support

For those SoCs that have hundreds of clock outputs, their clock
DT bindings could reasonably define #clock-cells as 1 and require
the client device specify the index of the clock it consumes in the
cell of its "clocks" phandle.

Add a generic of_clk_src_onecell_get() function for this purpose.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
12 years agoMerge branch 'lpc32xx/dts' of git://git.antcom.de/linux-2.6 into next/dt
Olof Johansson [Fri, 7 Sep 2012 21:59:25 +0000 (14:59 -0700)]
Merge branch 'lpc32xx/dts' of git://git.antcom.de/linux-2.6 into next/dt

* 'lpc32xx/dts' of git://git.antcom.de/linux-2.6:
  ARM: LPC32xx: Extend dts for EA3250 board
  ARM: LPC32xx: Adjust device tree node to new standard num-cs

12 years agoclk: ux500: Define smp_twd clock for u8500
Ulf Hansson [Fri, 31 Aug 2012 12:21:31 +0000 (14:21 +0200)]
clk: ux500: Define smp_twd clock for u8500

The smp_twd clock is based upon a prcmu_rate clock type
for the PRCMU_ARMSS clock.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
12 years agomfd: dbx500: Provide a more accurate smp_twd clock
Michel Jaouen [Fri, 31 Aug 2012 12:21:30 +0000 (14:21 +0200)]
mfd: dbx500: Provide a more accurate smp_twd clock

The local timer clock is based on ARM subsystem clock. This patch
obtains a more exact value of that clock by reading PRCMU registers.
Using this increases the accuracy of the local timer events.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rickard Andersson <rickard.andersson@stericsson.com>
Signed-off-by: Michel Jaouen <michel.jaouen@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
12 years agoclk: ux500: Support for prmcu_rate clock
Ulf Hansson [Fri, 31 Aug 2012 12:21:29 +0000 (14:21 +0200)]
clk: ux500: Support for prmcu_rate clock

The prmcu_rate clock is not gateable and has a rate which
only can be fetched.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
12 years agoclk: Provide option for clk_get_rate to issue hw for new rate
Ulf Hansson [Fri, 31 Aug 2012 12:21:28 +0000 (14:21 +0200)]
clk: Provide option for clk_get_rate to issue hw for new rate

By using CLK_GET_RATE_NOCACHE flag, we tell the clk_get_rate API to
issue the hw for an updated clock rate. This can be used for a clock
which rate may be updated without a client necessary modifying it.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
12 years agoclock: max77686: Add driver for Maxim 77686 32Khz crystal oscillator.
Jonghwa Lee [Tue, 28 Aug 2012 08:54:28 +0000 (17:54 +0900)]
clock: max77686: Add driver for Maxim 77686 32Khz crystal oscillator.

This patch supports max77686 mfd's clock driver using common clock frame work.
max77686 has 3 clock ouputs which all are generated from crystal oscillator and
SOC can enable/disable them via I2C bus. All clocks are fixed-rate clock sources
so that it doesn't supply interface for changing clock rate.
Driver uses regmap API to communicate with internal register.

Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
12 years agoARM: ux500: Switch to use common clock framework
Ulf Hansson [Mon, 27 Aug 2012 13:45:53 +0000 (15:45 +0200)]
ARM: ux500: Switch to use common clock framework

Remove machine specific clock implementation and switch to use
new common clock framework.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
12 years agoclk: ux500: Clock definitions for u8500
Ulf Hansson [Mon, 27 Aug 2012 13:45:52 +0000 (15:45 +0200)]
clk: ux500: Clock definitions for u8500

First version of clock definitions of PRCMU and PRCC clocks
for the u8500 platform.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
12 years agoclk: ux500: First version of clock definitions for ux500
Ulf Hansson [Mon, 27 Aug 2012 13:45:51 +0000 (15:45 +0200)]
clk: ux500: First version of clock definitions for ux500

In this first version of the clock definitions, the structure for
ux500 are set. Support for u8500, u9540 and u8540 are prepared.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
12 years agoclk: ux500: Adapt PRCMU and PRCC clocks for common clk
Ulf Hansson [Mon, 27 Aug 2012 13:45:50 +0000 (15:45 +0200)]
clk: ux500: Adapt PRCMU and PRCC clocks for common clk

First version of common clock implementation of PRCMU clocks
and PRCC clocks for ux500 platforms.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
12 years agoARM: LPC32xx: Extend dts for EA3250 board
Roland Stigge [Thu, 6 Sep 2012 09:40:48 +0000 (11:40 +0200)]
ARM: LPC32xx: Extend dts for EA3250 board

This patch adds keys and leds to the EA3250 board's dts device tree file.

Signed-off-by: Roland Stigge <stigge@antcom.de>
12 years agoARM: LPC32xx: Adjust device tree node to new standard num-cs
Roland Stigge [Thu, 6 Sep 2012 09:40:42 +0000 (11:40 +0200)]
ARM: LPC32xx: Adjust device tree node to new standard num-cs

In spi-pl022.c, the new device tree binding is now "num-cs" for the number of
chip selects. Further, pl022,hierarchy and pl022,slave-tx-disable isn't
supported in favour of reasonable defaults in the driver.

Adjusting phy3250.dts to it.

Signed-off-by: Roland Stigge <stigge@antcom.de>
12 years agoMerge branch 'pinmux-dt' of git://gitorious.org/sirfprima2-kernel/sirfprima2-kernel...
Olof Johansson [Wed, 5 Sep 2012 23:27:00 +0000 (16:27 -0700)]
Merge branch 'pinmux-dt' of git://gitorious.org/sirfprima2-kernel/sirfprima2-kernel into next/dt

This branch enables device tree bindings for the CSR Prima pin control
subsystem. All patches acked by Linus W (pinctrl maintainer).

* 'pinmux-dt' of git://gitorious.org/sirfprima2-kernel/sirfprima2-kernel:
  pinctrl: sirf: add DT-binding pinmux mapping support
  ARM: PRIMA2: rename prima2-cb.dts to prima2.dtsi as it only has SoC features
  ARM: PRIMA2: add missing interrupts property for pinctrl node
  + sync to Linux 3.6-rc4

12 years agoMerge branch 'soc-core' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesa...
Olof Johansson [Wed, 5 Sep 2012 22:35:48 +0000 (15:35 -0700)]
Merge branch 'soc-core' of git://git./linux/kernel/git/horms/renesas into next/dt

* 'soc-core' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: mach-shmobile: Add compilation support for dtbs using 'make dtbs'
  + sync to 3.6-rc3

12 years agopinctrl: sirf: add DT-binding pinmux mapping support
Barry Song [Thu, 23 Aug 2012 02:47:54 +0000 (10:47 +0800)]
pinctrl: sirf: add DT-binding pinmux mapping support

This makes us possible to define pinmux mapping in board-specific DTS.
prima2.dtsi provides all possible (groups,functions) configuration, and
device in .dts select configurations from dtsi files.

Signed-off-by: Barry Song <Baohua.Song@csr.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
12 years agoARM: PRIMA2: rename prima2-cb.dts to prima2.dtsi as it only has SoC features
Barry Song [Thu, 23 Aug 2012 02:47:53 +0000 (10:47 +0800)]
ARM: PRIMA2: rename prima2-cb.dts to prima2.dtsi as it only has SoC features

The current prima2-cb.dts only includes prima2 SoC feature without board-
specific descriptions. This patches rename it to dtsi and clean some useless
content.

Signed-off-by: Barry Song <Baohua.Song@csr.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
12 years agoARM: PRIMA2: add missing interrupts property for pinctrl node
Barry Song [Thu, 23 Aug 2012 02:47:52 +0000 (10:47 +0800)]
ARM: PRIMA2: add missing interrupts property for pinctrl node

commit 5130216265f6f924a4 missed the interrupts property

Signed-off-by: Barry Song <Baohua.Song@csr.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
12 years agoARM: dts: m28evk: Fix MMC WP pin being inverted
Marek Vasut [Wed, 5 Sep 2012 02:56:56 +0000 (04:56 +0200)]
ARM: dts: m28evk: Fix MMC WP pin being inverted

The MMC WP is active high on the m28evk, fix this.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
12 years agoARM: dts: cfa10049: Add SSP3 to the 10049 board
Maxime Ripard [Tue, 4 Sep 2012 08:44:03 +0000 (10:44 +0200)]
ARM: dts: cfa10049: Add SSP3 to the 10049 board

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
12 years agoARM: dts: mxs: Add missing address and size cells in SSP nodes
Maxime Ripard [Tue, 4 Sep 2012 08:44:02 +0000 (10:44 +0200)]
ARM: dts: mxs: Add missing address and size cells in SSP nodes

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
12 years agoARM: mx28evk: Add I2C EEPROM support
Fabio Estevam [Mon, 27 Aug 2012 19:39:59 +0000 (16:39 -0300)]
ARM: mx28evk: Add I2C EEPROM support

mx28evk has a free slot U50 that can be used to populate an I2C EEPROM.

Add support for it.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
12 years agoclk: versatile: make config option boolean
Linus Walleij [Thu, 30 Aug 2012 17:39:00 +0000 (19:39 +0200)]
clk: versatile: make config option boolean

There is no choice to have the RealView clocks as module for sure,
so turn this config option into a boolean.

Reported-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
12 years agoARM: dts: mxs: Enable USB1 Host on the CFA-10049 expansion board
Maxime Ripard [Mon, 3 Sep 2012 14:15:25 +0000 (16:15 +0200)]
ARM: dts: mxs: Enable USB1 Host on the CFA-10049 expansion board

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
12 years agoARM: dts: mxs: Add the second I2C adapter to the CFA10049 expansion board
Maxime Ripard [Fri, 31 Aug 2012 14:00:41 +0000 (16:00 +0200)]
ARM: dts: mxs: Add the second I2C adapter to the CFA10049 expansion board

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
12 years agoARM: dts: mxs: Add I2C1 muxing options for imx28
Maxime Ripard [Fri, 31 Aug 2012 14:00:40 +0000 (16:00 +0200)]
ARM: dts: mxs: Add I2C1 muxing options for imx28

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
12 years agoLinux 3.6-rc4
Linus Torvalds [Sat, 1 Sep 2012 17:39:58 +0000 (10:39 -0700)]
Linux 3.6-rc4

12 years agotime: Move ktime_t overflow checking into timespec_valid_strict
John Stultz [Fri, 31 Aug 2012 17:30:06 +0000 (13:30 -0400)]
time: Move ktime_t overflow checking into timespec_valid_strict

Andreas Bombe reported that the added ktime_t overflow checking added to
timespec_valid in commit 4e8b14526ca7 ("time: Improve sanity checking of
timekeeping inputs") was causing problems with X.org because it caused
timeouts larger then KTIME_T to be invalid.

Previously, these large timeouts would be clamped to KTIME_MAX and would
never expire, which is valid.

This patch splits the ktime_t overflow checking into a new
timespec_valid_strict function, and converts the timekeeping codes
internal checking to use this more strict function.

Reported-and-tested-by: Andreas Bombe <aeb@debian.org>
Cc: Zhouping Liu <zliu@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoMerge git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Sat, 1 Sep 2012 00:02:58 +0000 (17:02 -0700)]
Merge git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM bugfixes from Marcelo Tosatti.

* git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: fix KVM_GET_MSR for PV EOI
  kvm: Fix nonsense handling of compat ioctl

12 years agoMerge tag 'parisc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6
Linus Torvalds [Sat, 1 Sep 2012 00:02:20 +0000 (17:02 -0700)]
Merge tag 'parisc-fixes' of git://git./linux/kernel/git/jejb/parisc-2.6

Pull PARISC fixes from James Bottomley:
 "This is a set of two bug fixes.  One is the ATOMIC problem which is
  now causing a compile failure in certain situations.  The other is
  mishandling of PER_LINUX32 which may also cause user visible effects.

Signed-off-by: James Bottomley <JBottomley@Parallels.com>"
* tag 'parisc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6:
  [PARISC] fix personality flag check in copy_thread()
  [PARISC] Redefine ATOMIC_INIT and ATOMIC64_INIT to drop the casts

12 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Linus Torvalds [Sat, 1 Sep 2012 00:01:31 +0000 (17:01 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/s390/linux

Pull s390 fixes from Martin Schwidefsky:
 "A couple of s390 bug fixes for 3.5-rc4"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/32: Don't clobber personality flags on exec
  s390/smp: add missing smp_store_status() for !SMP
  s390/dasd: fix ioctl return value
  s390: Always use "long" for ssize_t to match size_t

12 years agoclk: add Loongson1B clock support
Kelvin Cheung [Mon, 20 Aug 2012 10:05:35 +0000 (18:05 +0800)]
clk: add Loongson1B clock support

This adds clock support to Loongson1B SoC using the common clock
infrastructure.

Signed-off-by: Kelvin Cheung <keguang.zhang@gmail.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
12 years agoMerge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Thu, 30 Aug 2012 16:11:33 +0000 (09:11 -0700)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

Pull drm fixes from Dave Airlie:
 "A bunch of scattered fixes ati/intel/nouveau, couple of core ones,
  nothing too shocking or different."

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm: Add EDID_QUIRK_FORCE_REDUCED_BLANKING for ASUS VW222S
  gma500: Consider CRTC initially active.
  drm/radeon: fix dig encoder selection on DCE61
  drm/radeon: fix double free in radeon_gpu_reset
  drm/radeon: force dma32 to fix regression rs4xx,rs6xx,rs740
  drm/radeon: rework panel mode setup
  drm/radeon/atom: powergating fixes for DCE6
  drm/radeon/atom: rework DIG modesetting on DCE3+
  drm/radeon: don't disable plls that are in use by other crtcs
  drm/radeon: add proper checking of RESOLVE_BOX command for r600-r700
  drm/radeon: initialize tracked CS state
  drm/radeon: fix reading CB_COLORn_MASK from the CS
  drm/nvc0/copy: check PUNITS to determine which copy engines are disabled
  i915: Quirk no_lvds on Gigabyte GA-D525TUD ITX motherboard
  drm/i915: Use the correct size of the GTT for placing the per-process entries
  drm: Check for invalid cursor flags
  drm: Initialize object type when using DRM_MODE() macro
  drm/i915: fix color order for BGR formats on IVB
  drm/i915: fix wrong order of parameters in port checking functions

12 years agos390/32: Don't clobber personality flags on exec
Heiko Carstens [Tue, 28 Aug 2012 08:02:08 +0000 (10:02 +0200)]
s390/32: Don't clobber personality flags on exec

In native 32 bit mode the personality flags were not correctly inherited.
This is the s390 version of 59e4c3a2 "powerpc/32: Don't clobber personality
flags on exec".

Reported-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
12 years agoARM: mach-shmobile: Add compilation support for dtbs using 'make dtbs'
Tetsuyuki Kobayashi [Mon, 23 Jul 2012 10:57:16 +0000 (19:57 +0900)]
ARM: mach-shmobile: Add compilation support for dtbs using 'make dtbs'

Add compilation support for dtbs using 'make dtbs'

Cc: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc: Simon Horman <horms@verge.net.au>
Signed-off-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp>
Signed-off-by: Simon Horman <horms@verge.net.au>
12 years agodrm: Add EDID_QUIRK_FORCE_REDUCED_BLANKING for ASUS VW222S
Paul Menzel [Wed, 8 Aug 2012 21:12:19 +0000 (23:12 +0200)]
drm: Add EDID_QUIRK_FORCE_REDUCED_BLANKING for ASUS VW222S

Connecting an ASUS VW222S [1] over VGA a garbled screen is shown with
vertical stripes in the top half.

In commit bc42aabc [2]

        commit bc42aabc6a01b92b0f961d65671564e0e1cd7592
        Author: Adam Jackson <ajax@redhat.com>
        Date:   Wed May 23 16:26:54 2012 -0400

            drm/edid/quirks: ViewSonic VA2026w

Adam Jackson added the quirk `EDID_QUIRK_FORCE_REDUCED_BLANKING` which
is also needed for this ASUS monitor.

All log files and output from `xrandr` is included in the referenced
Bugzilla report #17629.

Please note that this monitor only has a VGA (D-Sub) connector [1].

[1] http://www.asus.com/Display/LCD_Monitors/VW222S/
[2] http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commit;h=bc42aabc6a01b92b0f961d65671564e0e1cd7592

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=17629
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Cc: <dri-devel@lists.freedesktop.org>
Cc: Adam Jackson <ajax@redhat.com>
Cc: Ian Pilcher <arequipeno@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
12 years agoMerge branch 'drm-fixes-3.6' of git://people.freedesktop.org/~agd5f/linux into drm...
Dave Airlie [Thu, 30 Aug 2012 00:35:34 +0000 (10:35 +1000)]
Merge branch 'drm-fixes-3.6' of git://people.freedesktop.org/~agd5f/linux into drm-fixes

Alex writes:

Highlights:
- fix a gart regression on older IGP chips
- more MSAA fixes
- fix a double free in gpu reset code
- modesetting fixes
- trinity dig encoder fix.

* 'drm-fixes-3.6' of git://people.freedesktop.org/~agd5f/linux:
  drm/radeon: fix dig encoder selection on DCE61
  drm/radeon: fix double free in radeon_gpu_reset
  drm/radeon: force dma32 to fix regression rs4xx,rs6xx,rs740
  drm/radeon: rework panel mode setup
  drm/radeon/atom: powergating fixes for DCE6
  drm/radeon/atom: rework DIG modesetting on DCE3+
  drm/radeon: don't disable plls that are in use by other crtcs
  drm/radeon: add proper checking of RESOLVE_BOX command for r600-r700
  drm/radeon: initialize tracked CS state
  drm/radeon: fix reading CB_COLORn_MASK from the CS

12 years agogma500: Consider CRTC initially active.
Forest Bond [Mon, 13 Aug 2012 16:31:24 +0000 (16:31 +0000)]
gma500: Consider CRTC initially active.

[this one ideally should make 3.6 - it fixes the very annoying mode setting bug]

This causes the pipe to be forced off prior to initial mode set, which
roughly mirrors the behavior of the i915 driver.  It fixes initial mode
setting on my Intel DN2800MT (Cedarview) board.  Without it, mode
setting triggers an out-of-range error from the monitor for most modes,
but only on initial configuration (i.e. they can be configured
successfully from userspace after that).

Signed-off-by: Forest Bond <forest.bond@rapidrollout.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
12 years agodrm/radeon: fix dig encoder selection on DCE61
Alex Deucher [Wed, 29 Aug 2012 23:48:26 +0000 (19:48 -0400)]
drm/radeon: fix dig encoder selection on DCE61

Was using the DCE41 code which was wrong. Fixes
blank displays on a number of Trinity systems.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
12 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux...
Linus Torvalds [Wed, 29 Aug 2012 18:36:22 +0000 (11:36 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs

Pull btrfs fixes from Chris Mason:
 "I've split out the big send/receive update from my last pull request
  and now have just the fixes in my for-linus branch.  The send/recv
  branch will wander over to linux-next shortly though.

  The largest patches in this pull are Josef's patches to fix DIO
  locking problems and his patch to fix a crash during balance.  They
  are both well tested.

  The rest are smaller fixes that we've had queued.  The last rc came
  out while I was hacking new and exciting ways to recover from a
  misplaced rm -rf on my dev box, so these missed rc3."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (25 commits)
  Btrfs: fix that repair code is spuriously executed for transid failures
  Btrfs: fix ordered extent leak when failing to start a transaction
  Btrfs: fix a dio write regression
  Btrfs: fix deadlock with freeze and sync V2
  Btrfs: revert checksum error statistic which can cause a BUG()
  Btrfs: remove superblock writing after fatal error
  Btrfs: allow delayed refs to be merged
  Btrfs: fix enospc problems when deleting a subvol
  Btrfs: fix wrong mtime and ctime when creating snapshots
  Btrfs: fix race in run_clustered_refs
  Btrfs: don't run __tree_mod_log_free_eb on leaves
  Btrfs: increase the size of the free space cache
  Btrfs: barrier before waitqueue_active
  Btrfs: fix deadlock in wait_for_more_refs
  btrfs: fix second lock in btrfs_delete_delayed_items()
  Btrfs: don't allocate a seperate csums array for direct reads
  Btrfs: do not strdup non existent strings
  Btrfs: do not use missing devices when showing devname
  Btrfs: fix that error value is changed by mistake
  Btrfs: lock extents as we map them in DIO
  ...

12 years agoMerge git://www.linux-watchdog.org/linux-watchdog
Linus Torvalds [Wed, 29 Aug 2012 18:35:00 +0000 (11:35 -0700)]
Merge git://www.linux-watchdog.org/linux-watchdog

Pull watchdog fixes from Wim Van Sebroeck:
 "This will fix a warning for watchdog-test.c and it will remove a
  duplicate include of delay.h"

* git://www.linux-watchdog.org/linux-watchdog:
  watchdog: da9052: Remove duplicate inclusion of delay.h
  watchdog: fix watchdog-test.c build warning

12 years agomm, slab: lock the correct nodelist after reenabling irqs
David Rientjes [Wed, 29 Aug 2012 02:57:21 +0000 (19:57 -0700)]
mm, slab: lock the correct nodelist after reenabling irqs

cache_grow() can reenable irqs so the cpu (and node) can change, so ensure
that we take list_lock on the correct nodelist.

This fixes an issue with commit 072bb0aa5e06 ("mm: sl[au]b: add
knowledge of PFMEMALLOC reserve pages") where list_lock for the wrong
node was taken after growing the cache.

Reported-and-tested-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agodrm/radeon: fix double free in radeon_gpu_reset
Christian König [Wed, 29 Aug 2012 11:24:15 +0000 (13:24 +0200)]
drm/radeon: fix double free in radeon_gpu_reset

radeon_ring_restore is freeing the memory for the saved
ring data. We need to remember that, otherwise we try to
restore the ring data again on the next try. Additional
to that it shouldn't try the reset infinitely if we have
saved ring data.

Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
12 years agodrm/radeon: force dma32 to fix regression rs4xx,rs6xx,rs740
Jerome Glisse [Tue, 28 Aug 2012 20:50:22 +0000 (16:50 -0400)]
drm/radeon: force dma32 to fix regression rs4xx,rs6xx,rs740

It seems some of those IGP dislike non dma32 page despite what
documentation says. Fix regression since we allowed non dma32
pages. It seems it only affect some revision of those IGP chips
as we don't know which one just force dma32 for all of them.

https://bugzilla.redhat.com/show_bug.cgi?id=785375

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 years agodrm/radeon: rework panel mode setup
Alex Deucher [Mon, 27 Aug 2012 21:48:18 +0000 (17:48 -0400)]
drm/radeon: rework panel mode setup

Adjust the panel mode setup to match the behavior
of the vbios.  Rather than checking for specific
bridge chip ids, just check the eDP configuration register.
This saves extra aux transactions and works across
DP bridge chips without requiring additional per chip
id checking.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 years agodrm/radeon/atom: powergating fixes for DCE6
Alex Deucher [Fri, 24 Aug 2012 22:21:21 +0000 (18:21 -0400)]
drm/radeon/atom: powergating fixes for DCE6

Power gating is per crtc pair, but the powergating registers
should be called individually.  The hw handles power up/down
properly.  The pair is powered up if either crtc in the pair
is powered up and the pair is not powered down until both
crtcs in the pair are powered down.  This simplifies
programming and should save additional power as the previous
code never actually power gated the crtc pair.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
12 years agodrm/radeon/atom: rework DIG modesetting on DCE3+
Alex Deucher [Wed, 22 Aug 2012 13:54:56 +0000 (09:54 -0400)]
drm/radeon/atom: rework DIG modesetting on DCE3+

The ordering is important and the current drm code
wasn't cutting it for modern DIG encoders.  We need
to have information about crtc before setting up
the encoders so I've shifted the ordering a bit.
Probably we'll need a full rework akin to danvet's
recent intel patchs.  This patch fixes numerous
issues with DP bridge chips and makes link training
much more reliable.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
12 years agodrm/radeon: don't disable plls that are in use by other crtcs
Alex Deucher [Tue, 21 Aug 2012 23:06:21 +0000 (19:06 -0400)]
drm/radeon: don't disable plls that are in use by other crtcs

Some plls are shared for DP.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
12 years agodrm/radeon: add proper checking of RESOLVE_BOX command for r600-r700
Marek Olšák [Fri, 24 Aug 2012 12:27:36 +0000 (14:27 +0200)]
drm/radeon: add proper checking of RESOLVE_BOX command for r600-r700

Checking of the second colorbuffer was skipped on r700, because
CB_TARGET_MASK was 0xf. With r600, CB_TARGET_MASK is changed to 0xff,
so we must set the number of samples of the second colorbuffer to 1 in order
to pass the CS checker.
The DRM version is bumped, because RESOLVE_BOX is always rejected without this
fix on r600.

Signed-off-by: Marek Olšák <maraeo@gmail.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 years agodrm/radeon: initialize tracked CS state
Marek Olšák [Wed, 22 Aug 2012 15:02:43 +0000 (17:02 +0200)]
drm/radeon: initialize tracked CS state

This should help catch uninitialized registers and reject commands
because of that.

Signed-off-by: Marek Olšák <maraeo@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 years agodrm/radeon: fix reading CB_COLORn_MASK from the CS
Marek Olšák [Wed, 22 Aug 2012 15:02:42 +0000 (17:02 +0200)]
drm/radeon: fix reading CB_COLORn_MASK from the CS

Signed-off-by: Marek Olšák <maraeo@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 years agowatchdog: da9052: Remove duplicate inclusion of delay.h
Sachin Kamat [Tue, 7 Aug 2012 09:44:12 +0000 (15:14 +0530)]
watchdog: da9052: Remove duplicate inclusion of delay.h

delay.h header file was included twice.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
12 years agowatchdog: fix watchdog-test.c build warning
Randy Dunlap [Mon, 23 Jul 2012 17:46:11 +0000 (10:46 -0700)]
watchdog: fix watchdog-test.c build warning

Fix compiler warning by making the function static:

Documentation/watchdog/src/watchdog-test.c:34:6: warning: no previous prototype for 'term'

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
12 years agoMerge branch 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel...
Dave Airlie [Wed, 29 Aug 2012 10:09:23 +0000 (20:09 +1000)]
Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel into drm-fixes

Daniel writes:

"Just a few smaller things:
- Fix up a pipe vs. plane confusion from a refactoring, fixes a regression
  from 3.1 (Anhua Xu).
- Fix ivb sprite pixel formats (Vijay).
- Fixup ppgtt pde placement for machines where the Bios artifically limits
  the availbale gtt space in the name of ... product differentiation
  (Chris). This fixes an oops.
- Yet another no_lvds quirk entry."

* 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel:
  i915: Quirk no_lvds on Gigabyte GA-D525TUD ITX motherboard
  drm/i915: Use the correct size of the GTT for placing the per-process entries
  drm/i915: fix color order for BGR formats on IVB
  drm/i915: fix wrong order of parameters in port checking functions

12 years agoMerge branch 'drm-nouveau-fixes' of git://anongit.freedesktop.org/git/nouveau/linux...
Dave Airlie [Wed, 29 Aug 2012 10:05:40 +0000 (20:05 +1000)]
Merge branch 'drm-nouveau-fixes' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes

Ben says its just a single fix to avoid the wrong pcopy units being used.

* 'drm-nouveau-fixes' of git://anongit.freedesktop.org/git/nouveau/linux-2.6:
  drm/nvc0/copy: check PUNITS to determine which copy engines are disabled

12 years agodrm/nvc0/copy: check PUNITS to determine which copy engines are disabled
Ben Skeggs [Mon, 27 Aug 2012 06:22:49 +0000 (16:22 +1000)]
drm/nvc0/copy: check PUNITS to determine which copy engines are disabled

On some Fermi chipsets (NVCE particularly) PCOPY1 doesn't exist.  And if
what I've seen on Kepler is true of Fermi too, chipsets of the same type
can have different PCOPY units available.

This should fix a v3.5 regression reported by a number of people effecting
suspend/resume on NVC8/NVCE chipsets.

Cc: stable@vger.kernel.org [3.5]
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
12 years agoarm: mmp: make all SOCs use common clock by default
Chao Xie [Mon, 20 Aug 2012 02:55:15 +0000 (02:55 +0000)]
arm: mmp: make all SOCs use common clock by default

Signed-off-by: Chao Xie <xiechao.mail@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
12 years agoclk: mmp: add clock definition for mmp2
Chao Xie [Mon, 20 Aug 2012 02:55:14 +0000 (02:55 +0000)]
clk: mmp: add clock definition for mmp2

Initialize the clocks for mmp2

Signed-off-by: Chao Xie <xiechao.mail@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
12 years agoclk: mmp: add clock definition for pxa910
Chao Xie [Mon, 20 Aug 2012 02:55:13 +0000 (02:55 +0000)]
clk: mmp: add clock definition for pxa910

Initialize the clocks for pxa910

Signed-off-by: Chao Xie <xiechao.mail@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
12 years agoclk: mmp: add clock definition for pxa168
Chao Xie [Mon, 20 Aug 2012 02:55:12 +0000 (02:55 +0000)]
clk: mmp: add clock definition for pxa168

Initialize the clocks for pxa168

Signed-off-by: Chao Xie <xiechao.mail@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
12 years agoclk: mmp: add mmp specific clocks
Chao Xie [Mon, 20 Aug 2012 02:55:11 +0000 (02:55 +0000)]
clk: mmp: add mmp specific clocks

add mmp specific clocks including apbc cloks, apmu clocks,
and pll2, fraction clocks

Signed-off-by: Chao Xie <xiechao.mail@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
12 years agoBtrfs: fix that repair code is spuriously executed for transid failures
Stefan Behrens [Fri, 10 Aug 2012 14:58:21 +0000 (08:58 -0600)]
Btrfs: fix that repair code is spuriously executed for transid failures

If verify_parent_transid() fails for all mirrors, the current code
calls repair_io_failure() anyway which means:
- that the disk block is rewritten without repairing anything and
- that a kernel log message is printed which misleadingly claims
  that a read error was corrected.

This is an example:
parent transid verify failed on 615015833600 wanted 110423 found 110424
parent transid verify failed on 615015833600 wanted 110423 found 110424
btrfs read error corrected: ino 1 off 615015833600 (dev /dev/...)

It is wrong to ignore the results from verify_parent_transid() and to
call repair_eb_io_failure() when the verification of the transids failed.
This commit fixes the issue.

Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
12 years agoBtrfs: fix ordered extent leak when failing to start a transaction
Liu Bo [Wed, 22 Aug 2012 03:13:25 +0000 (21:13 -0600)]
Btrfs: fix ordered extent leak when failing to start a transaction

We cannot just return error before freeing ordered extent and releasing reserved
space when we fail to start a transacion.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
12 years agoBtrfs: fix a dio write regression
Liu Bo [Thu, 23 Aug 2012 02:10:38 +0000 (20:10 -0600)]
Btrfs: fix a dio write regression

This bug is introduced by commit 3b8bde746f6f9bd36a9f05f5f3b6e334318176a9
(Btrfs: lock extents as we map them in DIO).

In dio write, we should unlock the section which we didn't do IO on in case that
we fall back to buffered write.  But we need to not only unlock the section
but also cleanup reserved space for the section.

This bug was found while running xfstests 133, with this 133 no longer complains.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
12 years agoBtrfs: fix deadlock with freeze and sync V2
Josef Bacik [Fri, 24 Aug 2012 18:53:03 +0000 (12:53 -0600)]
Btrfs: fix deadlock with freeze and sync V2

We can deadlock with freeze right now because we unconditionally start a
transaction in our ->sync_fs() call.  To fix this just check and see if we
have a running transaction to commit.  This saves us from the deadlock
because at this point we'll have the umount sem for the sb so we're safe
from freezes coming in after we've done our check.  With this patch the
freeze xfstests no longer deadlocks.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
12 years agoBtrfs: revert checksum error statistic which can cause a BUG()
Stefan Behrens [Mon, 27 Aug 2012 14:30:03 +0000 (08:30 -0600)]
Btrfs: revert checksum error statistic which can cause a BUG()

Commit 442a4f6308e694e0fa6025708bd5e4e424bbf51c added btrfs device
statistic counters for detected IO and checksum errors to Linux 3.5.
The statistic part that counts checksum errors in
end_bio_extent_readpage() can cause a BUG() in a subfunction:
"kernel BUG at fs/btrfs/volumes.c:3762!"
That part is reverted with the current patch.
However, the counting of checksum errors in the scrub context remains
active, and the counting of detected IO errors (read, write or flush
errors) in all contexts remains active.

Cc: stable <stable@vger.kernel.org> # 3.5
Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
12 years agoBtrfs: remove superblock writing after fatal error
Stefan Behrens [Wed, 1 Aug 2012 11:45:52 +0000 (05:45 -0600)]
Btrfs: remove superblock writing after fatal error

With commit acce952b0, btrfs was changed to flag the filesystem with
BTRFS_SUPER_FLAG_ERROR and switch to read-only mode after a fatal
error happened like a write I/O errors of all mirrors.
In such situations, on unmount, the superblock is written in
btrfs_error_commit_super(). This is done with the intention to be able
to evaluate the error flag on the next mount. A warning is printed
in this case during the next mount and the log tree is ignored.

The issue is that it is possible that the superblock points to a root
that was not written (due to write I/O errors).
The result is that the filesystem cannot be mounted. btrfsck also does
not start and all the other btrfs-progs tools fail to start as well.
However, mount -o recovery is working well and does the right things
to recover the filesystem (i.e., don't use the log root, clear the
free space cache and use the next mountable root that is stored in the
root backup array).

This patch removes the writing of the superblock when
BTRFS_SUPER_FLAG_ERROR is set, and removes the handling of the error
flag in the mount function.

These lines can be used to reproduce the issue (using /dev/sdm):
SCRATCH_DEV=/dev/sdm
SCRATCH_MNT=/mnt
echo 0 25165824 linear $SCRATCH_DEV 0 | dmsetup create foo
ls -alLF /dev/mapper/foo
mkfs.btrfs /dev/mapper/foo
mount /dev/mapper/foo $SCRATCH_MNT
echo bar > $SCRATCH_MNT/foo
sync
echo 0 25165824 error | dmsetup reload foo
dmsetup resume foo
ls -alF $SCRATCH_MNT
touch $SCRATCH_MNT/1
ls -alF $SCRATCH_MNT
sleep 35
echo 0 25165824 linear $SCRATCH_DEV 0 | dmsetup reload foo
dmsetup resume foo
sleep 1
umount $SCRATCH_MNT
btrfsck /dev/mapper/foo
dmsetup remove foo

Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
12 years agoBtrfs: allow delayed refs to be merged
Josef Bacik [Tue, 7 Aug 2012 20:00:32 +0000 (16:00 -0400)]
Btrfs: allow delayed refs to be merged

Daniel Blueman reported a bug with fio+balance on a ramdisk setup.
Basically what happens is the balance relocates a tree block which will drop
the implicit refs for all of its children and adds a full backref.  Once the
block is relocated we have to add the implicit refs back, so when we cow the
block again we add the implicit refs for its children back.  The problem
comes when the original drop ref doesn't get run before we add the implicit
refs back.  The delayed ref stuff will specifically prefer ADD operations
over DROP to keep us from freeing up an extent that will have references to
it, so we try to add the implicit ref before it is actually removed and we
panic.  This worked fine before because the add would have just canceled the
drop out and we would have been fine.  But the backref walking work needs to
be able to freeze the delayed ref stuff in time so we have this ever
increasing sequence number that gets attached to all new delayed ref updates
which makes us not merge refs and we run into this issue.

So to fix this we need to merge delayed refs.  So everytime we run a
clustered ref we need to try and merge all of its delayed refs.  The backref
walking stuff locks the delayed ref head before processing, so if we have it
locked we are safe to merge any refs inside of the sequence number.  If
there is no sequence number we can merge all refs.  Doing this not only
fixes our bug but keeps the delayed ref code from adding and removing
useless refs and batching together multiple refs into one search instead of
one search per delayed ref, which will really help our commit times.  I ran
this with Daniels test and 276 and I haven't seen any problems.  Thanks,

Reported-by: Daniel J Blueman <daniel@quora.org>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
12 years agoBtrfs: fix enospc problems when deleting a subvol
Josef Bacik [Wed, 8 Aug 2012 16:12:59 +0000 (10:12 -0600)]
Btrfs: fix enospc problems when deleting a subvol

Subvol delete is a special kind of awful where we use the global reserve to
cover the ENOSPC requirements.  The problem is once we're done removing
everything we do a btrfs_update_inode(), which by default will try to do the
delayed update stuff which will use it's own reserve.  There will be no
space in this reserve and we'll return ENOSPC.  So instead use
btrfs_update_inode_fallback() which will just fallback to updating the inode
item in the case of enospc.  This is fine because the global reserve covers
the space requirements for this.  With this patch I can now delete a subvol
on a problem image Dave Sterba sent me.  Thanks,

Reported-by: David Sterba <dave@jikos.cz>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
12 years agoBtrfs: fix wrong mtime and ctime when creating snapshots
Miao Xie [Thu, 9 Aug 2012 03:39:36 +0000 (21:39 -0600)]
Btrfs: fix wrong mtime and ctime when creating snapshots

When we created a new snapshot, the mtime and ctime of its parent directory
were not updated. Fix it.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
12 years agoBtrfs: fix race in run_clustered_refs
Arne Jansen [Thu, 9 Aug 2012 06:16:53 +0000 (00:16 -0600)]
Btrfs: fix race in run_clustered_refs

With commit

commit d1270cd91f308c9d22b2804720c36ccd32dbc35e
Author: Arne Jansen <sensille@gmx.net>
Date:   Tue Sep 13 15:16:43 2011 +0200

     Btrfs: put back delayed refs that are too new

I added a window where the delayed_ref's head->ref_mod code can diverge
from the sum of the remaining refs, because we release the head->mutex
in the middle. This leads to btrfs_lookup_extent_info returning wrong
numbers. This patch fixes this by adjusting the head's ref_mod with each
delayed ref we run.

Signed-off-by: Arne Jansen <sensille@gmx.net>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
12 years agoBtrfs: don't run __tree_mod_log_free_eb on leaves
Chris Mason [Tue, 7 Aug 2012 19:34:49 +0000 (15:34 -0400)]
Btrfs: don't run __tree_mod_log_free_eb on leaves

When we split a leaf, we may end up inserting a new root on top of that
leaf.  The reflog code was incorrectly assuming the old root was always
a node.  This makes sure we skip over leaves.

Signed-off-by: Chris Mason <chris.mason@fusionio.com>
12 years agoBtrfs: increase the size of the free space cache
Josef Bacik [Mon, 6 Aug 2012 19:46:38 +0000 (13:46 -0600)]
Btrfs: increase the size of the free space cache

Arne was complaining about the space cache having mismatching generation
numbers when debugging a deadlock.  This is because we can run out of space
in our preallocated range for our space cache if you have a pretty
fragmented amount of space in your pinned space.  So just increase the
amount of space we preallocate for space cache so we can be sure to have
enough space.  This will only really affect data ranges since their the only
chunks that end up larger than 256MB.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
12 years agoBtrfs: barrier before waitqueue_active
Josef Bacik [Wed, 1 Aug 2012 19:36:24 +0000 (15:36 -0400)]
Btrfs: barrier before waitqueue_active

We need a barrir before calling waitqueue_active otherwise we will miss
wakeups.  So in places that do atomic_dec(); then atomic_read() use
atomic_dec_return() which imply a memory barrier (see memory-barriers.txt)
and then add an explicit memory barrier everywhere else that need them.
Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
12 years agoBtrfs: fix deadlock in wait_for_more_refs
Arne Jansen [Mon, 6 Aug 2012 20:18:51 +0000 (14:18 -0600)]
Btrfs: fix deadlock in wait_for_more_refs

Commit a168650c introduced a waiting mechanism to prevent busy waiting in
btrfs_run_delayed_refs. This can deadlock with btrfs_run_ordered_operations,
where a tree_mod_seq is held while waiting for the io to complete, while
the end_io calls btrfs_run_delayed_refs.
This whole mechanism is unnecessary. If not enough runnable refs are
available to satisfy count, just return as count is more like a guideline
than a strict requirement.
In case we have to run all refs, commit transaction makes sure that no
other threads are working in the transaction anymore, so we just assert
here that no refs are blocked.

Signed-off-by: Arne Jansen <sensille@gmx.net>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
12 years agobtrfs: fix second lock in btrfs_delete_delayed_items()
Fengguang Wu [Sat, 4 Aug 2012 07:45:02 +0000 (01:45 -0600)]
btrfs: fix second lock in btrfs_delete_delayed_items()

Fix a real bug caught by coccinelle.

fs/btrfs/delayed-inode.c:1013:1-11: second lock on line 1013

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
12 years agoBtrfs: don't allocate a seperate csums array for direct reads
Josef Bacik [Fri, 3 Aug 2012 20:49:19 +0000 (16:49 -0400)]
Btrfs: don't allocate a seperate csums array for direct reads

We've been allocating a big array for csums instead of storing them in the
io_tree like we do for buffered reads because previously we were locking the
entire range, so we didn't have an extent state for each sector of the
range.  But now that we do the range locking as we map the buffers we can
limit the mapping lenght to sectorsize and use the private part of the
io_tree for our csums.  This allows us to avoid an extra memory allocation
for direct reads which could incur latency.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
12 years agoBtrfs: do not strdup non existent strings
Josef Bacik [Thu, 2 Aug 2012 14:23:59 +0000 (10:23 -0400)]
Btrfs: do not strdup non existent strings

When we close devices we add back empty devices for some reason that escapes
me.  In the case of a missing dev we don't allocate an rcu_string for it's
name, so check to see if the device has a name and if it doesn't don't
bother strdup()'ing it.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
12 years agoBtrfs: do not use missing devices when showing devname
Josef Bacik [Thu, 2 Aug 2012 14:22:20 +0000 (10:22 -0400)]
Btrfs: do not use missing devices when showing devname

If you do the following

mkfs.btrfs /dev/sdb /dev/sdc
rmmod btrfs
dd if=/dev/zero of=/dev/sdb bs=1M count=1
mount -o degraded /dev/sdc /mnt/btrfs-test

the box will panic trying to deref the name for the missing dev since it is
the lower numbered devid.  So fix show_devname to not use missing devices.
Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
12 years agoBtrfs: fix that error value is changed by mistake
Stefan Behrens [Wed, 1 Aug 2012 10:28:01 +0000 (04:28 -0600)]
Btrfs: fix that error value is changed by mistake

In iterate_inodes_from_logical() the error result from
extent_from_logical() is patched by mistake. Typically ENOENT is
patched to EINVAL because (-ENOENT & BTRFS_EXTENT_FLAG_TREE_BLOCK)
evaluates to true.

Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
12 years agoBtrfs: lock extents as we map them in DIO
Josef Bacik [Tue, 31 Jul 2012 20:28:48 +0000 (16:28 -0400)]
Btrfs: lock extents as we map them in DIO

A deadlock in xfstests 113 was uncovered by commit

d187663ef24cd3d033f0cbf2867e70b36a3a90b8

This is because we would not return EIOCBQUEUED for short AIO reads, instead
we'd wait for the DIO to complete and then return the amount of data we
transferred, which would allow our stuff to unlock the remaning amount.  But
with this change this no longer happens, so if we have a short AIO read (for
example if we try to read past EOF), we could leave the section from EOF to
the end of where we tried to read locked.  Fixing this is tricky since there
is no clear way to know exactly how much data DIO truly submitted for IO, so
to make this less hard on ourselves and less combersome we need to lock the
extents as we try to map them, and then we unlock any areas we didn't
actually map.  This makes us completely safe from deadlocks and reliance on
a particular behavior of the DIO code.  This also lays the groundwork for
allowing us to use the normal csum storage method for reads which means we
can remove an allocation.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
12 years agoBtrfs: fix some endian bugs handling the root times
Dan Carpenter [Mon, 30 Jul 2012 08:10:44 +0000 (02:10 -0600)]
Btrfs: fix some endian bugs handling the root times

"trans->transid" is cpu endian but we want to store the data as little
endian.  "item->ctime.nsec" is only 32 bits, not 64.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
12 years agoBtrfs: unlock on error in btrfs_delalloc_reserve_metadata()
Dan Carpenter [Mon, 30 Jul 2012 08:15:15 +0000 (02:15 -0600)]
Btrfs: unlock on error in btrfs_delalloc_reserve_metadata()

We should release this mutex before returning the error code.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
12 years agoBtrfs: checking for NULL instead of IS_ERR
Dan Carpenter [Mon, 30 Jul 2012 08:15:43 +0000 (02:15 -0600)]
Btrfs: checking for NULL instead of IS_ERR

add_qgroup_rb() never returns NULL, only error pointers.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
12 years agoBtrfs: fix some error codes in btrfs_qgroup_inherit()
Dan Carpenter [Mon, 30 Jul 2012 08:16:10 +0000 (02:16 -0600)]
Btrfs: fix some error codes in btrfs_qgroup_inherit()

These are returning zero when it should be returning a negative error
code.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
12 years agoBtrfs: fix a misplaced address operator in a condition
Stefan Behrens [Thu, 26 Jul 2012 09:40:35 +0000 (03:40 -0600)]
Btrfs: fix a misplaced address operator in a condition

This should obviously not be "if (&flag)" but "if (flag)".

Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
12 years agos390/smp: add missing smp_store_status() for !SMP
Heiko Carstens [Mon, 27 Aug 2012 13:18:45 +0000 (15:18 +0200)]
s390/smp: add missing smp_store_status() for !SMP

Fix this compile error:

arch/s390/kernel/machine_kexec.c: In function ‘setup_regs’:
arch/s390/kernel/machine_kexec.c:63:3: error: implicit declaration
 of function ‘smp_store_status’ [-Werror=implicit-function-declaration]

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
12 years agos390/dasd: fix ioctl return value
Heiko Carstens [Mon, 27 Aug 2012 08:59:42 +0000 (10:59 +0200)]
s390/dasd: fix ioctl return value

For unimplemented ioctls the dasd driver should return -ENOTTY.

Reported-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Acked-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
12 years agoARM: mx28evk: Add LRADC support
Fabio Estevam [Mon, 27 Aug 2012 16:23:28 +0000 (13:23 -0300)]
ARM: mx28evk: Add LRADC support

Add LRADC support.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
12 years agoARM: mx28evk: Add SPI flash support
Fabio Estevam [Mon, 27 Aug 2012 16:23:27 +0000 (13:23 -0300)]
ARM: mx28evk: Add SPI flash support

mx28evk has a free slot (J89) which can be used to populate an SPI NOR Flash.

Add support for it.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
12 years agoKVM: x86: fix KVM_GET_MSR for PV EOI
Michael S. Tsirkin [Sun, 26 Aug 2012 15:00:29 +0000 (18:00 +0300)]
KVM: x86: fix KVM_GET_MSR for PV EOI

KVM_GET_MSR was missing support for PV EOI,
which is needed for migration.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
12 years agoARM: mxs: Update DENX M28 machine and dts file
Marek Vasut [Sun, 26 Aug 2012 12:59:31 +0000 (14:59 +0200)]
ARM: mxs: Update DENX M28 machine and dts file

Update the mach-mxs machine by removing the enet_clkout(). The new
revision of the board doesn't need that. Also, update the DTS file
with all the new drivers pulled in the mainline recently, that is,
SPI, LRADC, USB.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
12 years agoMerge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck...
Linus Torvalds [Sun, 26 Aug 2012 20:02:51 +0000 (13:02 -0700)]
Merge tag 'hwmon-for-linus' of git://git./linux/kernel/git/groeck/linux-staging

Pull a hwmon fix from Guenter Roeck:
 "Fix sensor readings for Asus M5A78L in asus_atk0110 driver."

* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (asus_atk0110) Add quirk for Asus M5A78L

12 years agokvm: Fix nonsense handling of compat ioctl
Alan Cox [Wed, 22 Aug 2012 13:34:11 +0000 (14:34 +0100)]
kvm: Fix nonsense handling of compat ioctl

KVM_SET_SIGNAL_MASK passed a NULL argument leaves the on stack signal
sets uninitialized. It then passes them through to
kvm_vcpu_ioctl_set_sigmask.

We should be passing a NULL in this case not translated garbage.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
12 years agoMerge tag 'for-linus' of git://github.com/prasad-joshi/logfs_upstream
Linus Torvalds [Sun, 26 Aug 2012 17:14:11 +0000 (10:14 -0700)]
Merge tag 'for-linus' of git://github.com/prasad-joshi/logfs_upstream

Pull LogFS bugfixes from Prasad Joshi:

 - "logfs: query block device for number of pages to send with bio"

This BUG was found when LogFS was used on KVM. The patch fixes
the problem by asking for underlaying block device the number
of pages to send with each BIO.

 - "logfs: maintain the ordering of meta-inode destruction"

LogFS maintains file system meta-data in special inodes. These
inodes are releated to each other, therefore they must be
destroyed in a proper order.

 - "logfs: initialize the number of iovecs in bio"

LogFS used to panic when it was created on an encrypted LVM
volume. The patch fixes the problem by properly initializing
the BIO.

Plus a couple more:
 - logfs: create a pagecache page if it is not present
 - logfs: destroy the reserved inodes while unmounting

* tag 'for-linus' of git://github.com/prasad-joshi/logfs_upstream:
  logfs: query block device for number of pages to send with bio
  logfs: maintain the ordering of meta-inode destruction
  logfs: create a pagecache page if it is not present
  logfs: initialize the number of iovecs in bio
  logfs: destroy the reserved inodes while unmounting

12 years agoMerge tag 'fixes-3.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Linus Torvalds [Sun, 26 Aug 2012 00:33:33 +0000 (17:33 -0700)]
Merge tag 'fixes-3.6-rc3' of git://git./linux/kernel/git/arm/arm-soc

Pull arm-soc fixes from Arnd Bergmann:
 "Bug fixes for various ARM platforms.  About half of these are for OMAP
  and submitted before but did not make it into v3.6-rc2."

* tag 'fixes-3.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (39 commits)
  ARM: ux500: don't select LEDS_GPIO for snowball
  ARM: imx: build i.MX6 functions only when needed
  ARM: imx: select CPU_FREQ_TABLE when needed
  ARM: imx: fix ksz9021rn_phy_fixup
  ARM: imx: build pm-imx5 code only when PM is enabled
  ARM: omap: allow building omap44xx without SMP
  ARM: dts: imx51-babbage: fix esdhc cd/wp properties
  ARM: imx6: spin the cpu until hardware takes it down
  ARM: ux500: Ensure probing of Audio devices when Device Tree is enabled
  ARM: ux500: Fix merge error, no matching driver name for 'snd_soc_u8500'
  ARM i.MX6q: Add virtual 1/3.5 dividers in the LDB clock path
  ARM: Kirkwood: fix Makefile.boot
  ARM: Kirkwood: Fix iconnect leds
  ARM: Orion: Set eth packet size csum offload limit
  ARM: mv78xx0: fix win_cfg_base prototype
  ARM: OMAP: dmtimers: Fix locking issue in omap_dm_timer_request*()
  ARM: mmp: fix potential NULL dereference
  ARM: OMAP4: Register the OPP table only for 4430 device
  cpufreq: OMAP: Handle missing frequency table on SMP systems
  ARM: OMAP4: sleep: Save the complete used register stack frame
  ...

12 years agoMerge tag 'stable/for-linus-3.6-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 26 Aug 2012 00:31:59 +0000 (17:31 -0700)]
Merge tag 'stable/for-linus-3.6-rc3-tag' of git://git./linux/kernel/git/konrad/xen

Pull three xen bug-fixes from Konrad Rzeszutek Wilk:
 - Revert the kexec fix which caused on non-kexec shutdowns a race.
 - Reuse existing P2M leafs - instead of requiring to allocate a large
   area of bootup virtual address estate.
 - Fix a one-off error when adding PFNs for balloon pages.

* tag 'stable/for-linus-3.6-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen/setup: Fix one-off error when adding for-balloon PFNs to the P2M.
  xen/p2m: Reuse existing P2M leafs if they are filled with 1:1 PFNs or INVALID.
  Revert "xen PVonHVM: move shared_info to MMIO before kexec"