1. 27 Sep, 2014 4 commits
    • Linus Torvalds's avatar
      Merge branch 'for-3.17-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup · 6111da34
      Linus Torvalds authored
      Pull cgroup fixes from Tejun Heo:
       "This is quite late but these need to be backported anyway.
      
        This is the fix for a long-standing cpuset bug which existed from
        2009.  cpuset makes use of PF_SPREAD_{PAGE|SLAB} flags to modify the
        task's memory allocation behavior according to the settings of the
        cpuset it belongs to; unfortunately, when those flags have to be
        changed, cpuset did so directly even whlie the target task is running,
        which is obviously racy as task->flags may be modified by the task
        itself at any time.  This obscure bug manifested as corrupt
        PF_USED_MATH flag leading to a weird crash.
      
        The bug is fixed by moving the flag to task->atomic_flags.  The first
        two are prepatory ones to help defining atomic_flags accessors and the
        third one is the actual fix"
      
      * 'for-3.17-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
        cpuset: PF_SPREAD_PAGE and PF_SPREAD_SLAB should be atomic flags
        sched: add macros to define bitops for task atomic flags
        sched: fix confusing PFA_NO_NEW_PRIVS constant
      6111da34
    • Linus Torvalds's avatar
      Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · 83692898
      Linus Torvalds authored
      Pull ARM SoC fixes from Olof Johansson:
       "Here's our last set of fixes for 3.17.  Most of these are for TI
        platforms, fixing some noisy Kconfig issues, runtime clock and power
        issues on several platforms and NAND timings on DRA7.
      
        There are also a couple of bug fixes for i.MX, one for QCOM and a
       small fix to avoid section mismatch noise on PXA.
      
        Diffstat looks large, partially due to some tables being updated and
        thus touching many lines.  The qcom gsbi change also restructures
        clock management a bit and thus touches a bunch of lines.
      
        All in all, a bit more changes than we'd like at this point, but
        nothing stands out as risky either so it seems like the right thing to
        send it up now instead of holding it to the merge window"
      
      * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
        drivers/soc: qcom: do not disable the iface clock in probe
        ARM: imx: fix .is_enabled() of shared gate clock
        ARM: OMAP3: Fix I/O chain clock line assertion timed out error
        ARM: keystone: dts: fix bindings for pcie and usb clock nodes
        bus: omap_l3_noc: Fix connID for OMAP4
        ARM: DT: imx53: fix lvds channel 1 port
        ARM: dts: cm-t54: fix serial console power supply.
        ARM: dts: dra7-evm: Fix NAND GPMC timings
        ARM: pxa: fix section mismatch warning for pxa_timer_nodt_init
        ARM: OMAP: Fix Kconfig warning for omap1
      83692898
    • Linus Torvalds's avatar
      Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus · 74807afd
      Linus Torvalds authored
      Pull MIPS fixes from Ralf Baechle:
       "The final round of fixes.  One corner case in the math emulator and
        another one in the mcount function for ftrace"
      
      * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
        MIPS: mcount: Adjust stack pointer for static trace in MIPS32
        MIPS: Fix MFC1 & MFHC1 emulation for 64-bit MIPS systems
      74807afd
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · cd40fab6
      Linus Torvalds authored
      Pull x86 fixes from Ingo Molnar:
       "This has:
      
         - EFI revert to fix a boot regression
         - early_ioremap() fix for boot failure
         - KASLR fix for possible boot failures
         - EFI fix for corrupted string printing
         - remove a misleading EFI bootup 'failed!' error message
      
        Unfortunately it's all rather close to the merge window"
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/efi: Truncate 64-bit values when calling 32-bit OutputString()
        x86/efi: Delete misleading efi_printk() error message
        Revert "efi/x86: efistub: Move shared dependencies to <asm/efi.h>"
        x86/kaslr: Avoid the setup_data area when picking location
        x86 early_ioremap: Increase FIX_BTMAPS_SLOTS to 8
      cd40fab6
  2. 26 Sep, 2014 14 commits
  3. 25 Sep, 2014 11 commits
    • Linus Torvalds's avatar
      Merge tag 'pm+acpi-3.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · f4cb707e
      Linus Torvalds authored
      Pull ACPI and power management fixes from Rafael Wysocki:
       "These are regression fixes (ACPI hotplug, cpufreq, hibernation, ACPI
        LPSS driver), fixes for stuff that never worked correctly (ACPI GPIO
        support in some cases and a wrong sign of an error code in the ACPI
        core in one place), and one blacklist item for ACPI backlight
        handling.
      
        Specifics:
      
         - Revert of a recent hibernation core commit that introduced a NULL
           pointer dereference during resume for at least one user (Rafael J
           Wysocki).
      
         - Fix for the ACPI LPSS (Low-Power Subsystem) driver to disable
           asynchronous PM callback execution for LPSS devices during system
           suspend/resume (introduced in 3.16) which turns out to break
           ordering expectations on some systems.  From Fu Zhonghui.
      
         - cpufreq core fix related to the handling of sysfs nodes during
           system suspend/resume that has been broken for intel_pstate since
           3.15 from Lan Tianyu.
      
         - Restore the generation of "online" uevents for ACPI container
           devices that was removed in 3.14, but some user space utilities
           turn out to need them (Rafael J Wysocki).
      
         - The cpufreq core fails to release a lock in an error code path
           after changes made in 3.14.  Fix from Prarit Bhargava.
      
         - ACPICA and ACPI/GPIO fixes to make the handling of ACPI GPIO
           operation regions (which means AML using GPIOs) work correctly in
           all cases from Bob Moore and Srinivas Pandruvada.
      
         - Fix for a wrong sign of the ACPI core's create_modalias() return
           value in case of an error from Mika Westerberg.
      
         - ACPI backlight blacklist entry for ThinkPad X201s from Aaron Lu"
      
      * tag 'pm+acpi-3.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        Revert "PM / Hibernate: Iterate over set bits instead of PFNs in swsusp_free()"
        gpio / ACPI: Use pin index and bit length
        ACPICA: Update to GPIO region handler interface.
        ACPI / platform / LPSS: disable async suspend/resume of LPSS devices
        cpufreq: release policy->rwsem on error
        cpufreq: fix cpufreq suspend/resume for intel_pstate
        ACPI / scan: Correct error return value of create_modalias()
        ACPI / video: disable native backlight for ThinkPad X201s
        ACPI / hotplug: Generate online uevents for ACPI containers
      f4cb707e
    • Linus Torvalds's avatar
      Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux · 12df9f37
      Linus Torvalds authored
      Pull i2c fixes from Wolfram Sang:
       "This is probably not the kind of pull request you want to see that
        late in the cycle.  Yet, the ACPI refactorization was problematic
        again and caused another two issues which need fixing.  My holidays
        with limited internet (plus travelling) and the developer's illness
        didn't help either :(
      
        The details:
      
         - ACPI code was refactored out into a seperate file and as a
           side-effect, the i2c-core module got renamed.  Jean Delvare
           rightfully complained about the rename being problematic for
           distributions.  So, Mika and I thought the least problematic way to
           deal with it is to move all the code back into the main i2c core
           source file.  This is mainly a huge code move with some #ifdeffery
           applied.  No functional code changes.  Our personal tests and the
           testbots did not find problems.  (I was thinking about reverting,
           too, yet that would also have ~800 lines changed)
      
         - The new ACPI code also had a NULL pointer exception, thanks to
           Peter for finding and fixing it.
      
         - Mikko fixed a locking problem by decoupling clock_prepare and
           clock_enable.
      
         - Addy learnt that the datasheet was wrong and reimplemented the
           frequency setup according to the new algorithm.
      
        - Fan fixed an off-by-one error when copying data
      
        - Janusz fixed a copy'n'paste bug which gave a wrong error message
      
        - Sergei made sure that "don't touch" bits are not accessed"
      
      * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
        i2c: acpi: Fix NULL Pointer dereference
        i2c: move acpi code back into the core
        i2c: rk3x: fix divisor calculation for SCL frequency
        i2c: mxs: fix error message in pio transfer
        i2c: ismt: use correct length when copy buffer
        i2c: rcar: fix RCAR_IRQ_ACK_{RECV|SEND}
        i2c: tegra: Move clk_prepare/clk_set_rate to probe
      12df9f37
    • Randy Dunlap's avatar
      MAINTAINERS: new Documentation maintainer · d671e424
      Randy Dunlap authored
      
      
      Transfer Documentation maintainership to Jiri Kosina.
      Thanks, Jiri.
      
      I'll still be reviewing and working on documentation.
      Signed-off-by: default avatarRandy Dunlap <rdunlap@infradead.org>
      Acked-by: default avatarJiri Kosina <jkosina@suse.cz>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      d671e424
    • Rafael J. Wysocki's avatar
      Merge branches 'pm-cpufreq' and 'pm-sleep' · 381e63da
      Rafael J. Wysocki authored
      * pm-cpufreq:
        cpufreq: release policy->rwsem on error
        cpufreq: fix cpufreq suspend/resume for intel_pstate
      
      * pm-sleep:
        Revert "PM / Hibernate: Iterate over set bits instead of PFNs in swsusp_free()"
      381e63da
    • Rafael J. Wysocki's avatar
      Merge branches 'acpi-hotplug', 'acpi-scan', 'acpi-lpss', 'acpi-gpio' and 'acpi-video' · 9ef5a306
      Rafael J. Wysocki authored
      * acpi-hotplug:
        ACPI / hotplug: Generate online uevents for ACPI containers
      
      * acpi-scan:
        ACPI / scan: Correct error return value of create_modalias()
      
      * acpi-lpss:
        ACPI / platform / LPSS: disable async suspend/resume of LPSS devices
      
      * acpi-gpio:
        gpio / ACPI: Use pin index and bit length
        ACPICA: Update to GPIO region handler interface.
      
      * acpi-video:
        ACPI / video: disable native backlight for ThinkPad X201s
      9ef5a306
    • Linus Torvalds's avatar
      Merge tag 'gpio-v3.17-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio · 2289823c
      Linus Torvalds authored
      Pull gpio fixes from Linus Walleij:
       "Two GPIO fixes:
      
         - GPIO direction flags where handled wrong in the new descriptor-
           based API, so direction changes did not always "take".
      
         - Fix a handler installation race in the generic GPIO irqchip code"
      
      * tag 'gpio-v3.17-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
        gpio: Fix potential NULL handler data in chained irqchip handler
        gpio: Fix gpio direction flags not getting set
      2289823c
    • Ingo Molnar's avatar
      Merge tag 'efi-urgent' of... · 29282ac0
      Ingo Molnar authored
      Merge tag 'efi-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi
      
       into x86/urgent
      
      Pull EFI fixes from Matt Fleming:
      
        * Revert the static library changes from the merge window since they're
          causing issues for Macbooks and Fedora + Grub2 (Matt Fleming)
      
        * Delete the misleading "setup_efi_pci() failed!" message which some
          people are seeing when booting EFI (Matt Fleming)
      
        * Fix printing strings from the 32-bit EFI boot stub by only passing
          32-bit addresses to the firmware (Matt Fleming)
      Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
      29282ac0
    • Linus Torvalds's avatar
      Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux · 4d3afba3
      Linus Torvalds authored
      Pull devicetree bug fixes and documentation from Grant Likely:
       "Several bug fix commits for issues found in the v3.17 rc series.
      
        Most of these are minor in that they aren't actively dangerous, but
        they have been seen in the wild.  The one important fix is commit
        7dbe5849 ("of: make sure of_alias is initialized before accessing
        it"), without which some powerpc platforms will fail to find stdout
        for the console"
      
      * tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux:
        of/fdt: fix memory range check
        of: Fix memory block alignment in early_init_dt_add_memory_arch()
        of: make sure of_alias is initialized before accessing it
        of: Documentation regarding attaching OF Selftest testdata
        of: Disabling OF functions that use sysfs if CONFIG_SYSFS disabled
        of: correct of_console_check()'s return value
      4d3afba3
    • Peter Hüwe's avatar
      i2c: acpi: Fix NULL Pointer dereference · 0aef44e8
      Peter Hüwe authored
      If adapter->dev.parent == NULL there is a NULL pointer dereference in
      acpi_i2c_install_space_handler and acpi_i2c_remove_space_handler.
      
      This is present since introduction of this code:
      36604751 "i2c: rework kernel config I2C_ACPI" or even
      da3c6647
      
       "I2C/ACPI: Clean up I2C ACPI code and Add CONFIG_I2C_ACPI"
      
      The adapter->dev.parent == NULL case is valid for the i2c_stub,
      so loading i2c_stub with ACPI_I2C_OPREGION enabled results in an oops.
      This is also valid at least for i2c_tiny_usb and i2c_robotfuzz_osif.
      
      Fix by checking whether it is null before calling ACPI_HANDLE.
      Signed-off-by: default avatarPeter Huewe <peterhuewe@gmx.de>
      Acked-by: default avatarMika Westerberg <mika.westerberg@linux.intel.com>
      Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
      0aef44e8
    • Wolfram Sang's avatar
      i2c: move acpi code back into the core · 17f4a5c4
      Wolfram Sang authored
      Commit 5d98e61d
      
       ("I2C/ACPI: Add i2c ACPI operation region support")
      renamed the i2c-core module. This may cause regressions for
      distributions, so put the ACPI code back into the core.
      Reported-by: default avatarJean Delvare <jdelvare@suse.de>
      Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
      Tested-by: default avatarLan Tianyu <tianyu.lan@intel.com>
      Tested-by: default avatarMika Westerberg <mika.westerberg@linux.intel.com>
      17f4a5c4
    • Srinivas Kandagatla's avatar
      of/fdt: fix memory range check · 9aacd602
      Srinivas Kandagatla authored
      
      
      In cases where board has below memory DT node
      
      memory{
      	device_type = "memory";
      	reg = <0x80000000 0x80000000>;
      };
      
      Check on the memory range in fdt.c will always fail because it is
      comparing MAX_PHYS_ADDR with base + size, in fact it should compare
      it with base + size - 1.
      
      This issue was originally noticed on Qualcomm IFC6410 board.
      Without this patch kernel shows up noticed unnecessary warnings
      
      [    0.000000] Machine model: Qualcomm APQ8064/IFC6410
      [    0.000000] Ignoring memory range 0xffffffff - 0x100000000
      [    0.000000] cma: Reserved 64 MiB at ab800000
      
      as a result the size get reduced to 0x7fffffff which looks wrong.
      
      This patch fixes the check involved in generating this warning and
      as a result it also fixes the wrong size calculation.
      Signed-off-by: default avatarSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
      [grant.likely: adjust new size calculation also]
      Signed-off-by: default avatarGrant Likely <grant.likely@linaro.org>
      9aacd602
  4. 24 Sep, 2014 11 commits
    • Zefan Li's avatar
      cpuset: PF_SPREAD_PAGE and PF_SPREAD_SLAB should be atomic flags · 2ad654bc
      Zefan Li authored
      When we change cpuset.memory_spread_{page,slab}, cpuset will flip
      PF_SPREAD_{PAGE,SLAB} bit of tsk->flags for each task in that cpuset.
      This should be done using atomic bitops, but currently we don't,
      which is broken.
      
      Tetsuo reported a hard-to-reproduce kernel crash on RHEL6, which happened
      when one thread tried to clear PF_USED_MATH while at the same time another
      thread tried to flip PF_SPREAD_PAGE/PF_SPREAD_SLAB. They both operate on
      the same task.
      
      Here's the full report:
      https://lkml.org/lkml/2014/9/19/230
      
      To fix this, we make PF_SPREAD_PAGE and PF_SPREAD_SLAB atomic flags.
      
      v4:
      - updated mm/slab.c. (Fengguang Wu)
      - updated Documentation.
      
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Ingo Molnar <mingo@kernel.org>
      Cc: Miao Xie <miaox@cn.fujitsu.com>
      Cc: Kees Cook <keescook@chromium.org>
      Fixes: 950592f7
      
       ("cpusets: update tasks' page/slab spread flags in time")
      Cc: <stable@vger.kernel.org> # 2.6.31+
      Reported-by: default avatarTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
      Signed-off-by: default avatarZefan Li <lizefan@huawei.com>
      Signed-off-by: default avatarTejun Heo <tj@kernel.org>
      2ad654bc
    • Zefan Li's avatar
      sched: add macros to define bitops for task atomic flags · e0e5070b
      Zefan Li authored
      
      
      This will simplify code when we add new flags.
      
      v3:
      - Kees pointed out that no_new_privs should never be cleared, so we
      shouldn't define task_clear_no_new_privs(). we define 3 macros instead
      of a single one.
      
      v2:
      - updated scripts/tags.sh, suggested by Peter
      
      Cc: Ingo Molnar <mingo@kernel.org>
      Cc: Miao Xie <miaox@cn.fujitsu.com>
      Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
      Acked-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
      Acked-by: default avatarKees Cook <keescook@chromium.org>
      Signed-off-by: default avatarZefan Li <lizefan@huawei.com>
      Signed-off-by: default avatarTejun Heo <tj@kernel.org>
      e0e5070b
    • Zefan Li's avatar
      sched: fix confusing PFA_NO_NEW_PRIVS constant · a2b86f77
      Zefan Li authored
      Commit 1d4457f9
      
       ("sched: move no_new_privs into new atomic flags")
      defined PFA_NO_NEW_PRIVS as hexadecimal value, but it is confusing
      because it is used as bit number. Redefine it as decimal bit number.
      
      Note this changes the bit position of PFA_NOW_NEW_PRIVS from 1 to 0.
      
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Ingo Molnar <mingo@kernel.org>
      Cc: Miao Xie <miaox@cn.fujitsu.com>
      Signed-off-by: default avatarTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
      Acked-by: default avatarKees Cook <keescook@chromium.org>
      [ lizf: slightly modified subject and changelog ]
      Signed-off-by: default avatarZefan Li <lizefan@huawei.com>
      Signed-off-by: default avatarTejun Heo <tj@kernel.org>
      a2b86f77
    • Marcos Paulo de Souza's avatar
      Input: i8042 - fix Asus X450LCP touchpad detection · 3049683e
      Marcos Paulo de Souza authored
      
      
      We need to add this module to the nomux table to be able to detect the
      touchpad.
      
      Cc: stablevger.kernel.org
      Signed-off-by: default avatarMarcos Paulo de Souza <marcos.souza.org@gmail.com>
      Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
      3049683e
    • Rafael J. Wysocki's avatar
      Revert "PM / Hibernate: Iterate over set bits instead of PFNs in swsusp_free()" · 5c4dd348
      Rafael J. Wysocki authored
      Revert commit 6efde38f (PM / Hibernate: Iterate over set bits
      instead of PFNs in swsusp_free()) that introduced a NULL pointer
      dereference during system resume from hibernation:
      
      BUG: unable to handle kernel NULL pointer dereference at (null)
      IP: [<ffffffff810a8cc1>] swsusp_free+0x21/0x190
      PGD b39c2067 PUD b39c1067 PMD 0
      Oops: 0000 [#1] SMP
      Modules linked in: <irrelevant list of modules>
      CPU: 1 PID: 4898 Comm: s2disk Tainted: G         C     3.17-rc5-amd64 #1 Debian 3.17~rc5-1~exp1
      Hardware name: LENOVO 2776LEG/2776LEG, BIOS 6EET55WW (3.15 ) 12/19/2011
      task: ffff88023155ea40 ti: ffff8800b3b14000 task.ti: ffff8800b3b14000
      RIP: 0010:[<ffffffff810a8cc1>]  [<ffffffff810a8cc1>]
      swsusp_free+0x21/0x190
      RSP: 0018:ffff8800b3b17ea8  EFLAGS: 00010246
      RAX: 0000000000000000 RBX: ffff8800b39bab00 RCX: 0000000000000001
      RDX: ffff8800b39bab10 RSI: ffff8800b39bab00 RDI: 0000000000000000
      RBP: 0000000000000010 R08: 0000000000000000 R09: 0000000000000000
      R10: ffff8800b39bab10 R11: 0000000000000246 R12: ffffea0000000000
      R13: ffff880232f485a0 R14: ffff88023ac27cd8 R15: ffff880232927590
      FS:  00007f406d83b700(0000) GS:ffff88023bc80000(0000)
      knlGS:0000000000000000
      CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
      CR2: 0000000000000000 CR3: 00000000b3a62000 CR4: 00000000000007e0
      Stack:
       ffff8800b39bab00 0000000000000010 ffff880232927590 ffffffff810acb4a
       ffff8800b39bab00 ffffffff811a955a ffff8800b39bab10 0000000000000000
       ffff88023155f098 ffffffff81a6b8c0 ffff88023155ea40 0000000000000007
      Call Trace:
       [<ffffffff810acb4a>] ? snapshot_release+0x2a/0xb0
       [<ffffffff811a955a>] ? __fput+0xca/0x1d0
       [<ffffffff81080627>] ? task_work_run+0x97/0xd0
       [<ffffffff81012d89>] ? do_notify_resume+0x69/0xa0
       [<ffffffff8151452a>] ? int_signal+0x12/0x17
      Code: 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 66 90 41 54 48 8b 05 ba 62 9c 00 49 bc 00 00 00 00 00 ea ff ff 48 8b 3d a1 62 9c 00 55 53 <48> 8b 10 48 89 50 18 48 8b 52 20 48 c7 40 28 00 00 00 00 c7 40
      RIP  [<ffffffff810a8cc1>] swsusp_free+0x21/0x190
       RSP <ffff8800b3b17ea8>
      CR2: 0000000000000000
      ---[ end trace f02be86a1ec0cccb ]---
      
      due to forbidden_pages_map being NULL in swsusp_free().
      
      Fixes: 6efde38f
      
       "PM / Hibernate: Iterate over set bits instead of PFNs in swsusp_free()"
      Reported-by: default avatarBjørn Mork <bjorn@mork.no>
      Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
      5c4dd348
    • Linus Torvalds's avatar
      Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux · 005f8005
      Linus Torvalds authored
      Pull drm fixes from Dave Airlie:
       "Some final radeon and i915 fixes, black screens mostly"
      
      * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
        drm/radeon/cik: use a separate counter for CP init timeout
        drm/i915/hdmi: fix hdmi audio state readout
        drm/i915: Don't leak command parser tables on suspend/resume
        drm/radeon: add PX quirk for asus K53TK
        drm/radeon: add a backlight quirk for Amilo Xi 2550
        drm/radeon: add a module parameter for backlight control (v2)
        drm/radeon: Update IH_RB_RPTR register after each processed interrupt
        drm/radeon: Make IH ring overflow debugging output more useful
        drm/radeon: Clear RB_OVERFLOW bit earlier
      005f8005
    • Srinivas Pandruvada's avatar
      gpio / ACPI: Use pin index and bit length · c15d821d
      Srinivas Pandruvada authored
      Fix code when the operation region callback is for an gpio, which
      is not at index 0 and for partial pins in a GPIO definition.
      For example:
      Name (GMOD, ResourceTemplate ()
      {
      	//3 Outputs that define the Power mode of the device
      	GpioIo (Exclusive, PullDown, , , , "\\_SB.GPI2") {10, 11, 12}
      	})
      }
      
      If opregion callback calls is for:
      - Set pin 10, then address = 0 and bit length = 1
      - Set pin 11, then address = 1 and bit length = 1
      - Set for both pin 11 and pin 12, then address = 1, bit length = 2
      
      This change requires updated ACPICA gpio operation handler code to
      send the pin index and bit length.
      
      Fixes: 473ed7be
      
       (gpio / ACPI: Add support for ACPI GPIO operation regions)
      Signed-off-by: default avatarSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
      Acked-by: default avatarMika Westerberg <mika.westerberg@linux.intel.com>
      Acked-by: default avatarLinus Walleij <linus.walleij@linaro.org>
      Cc: 3.15+ <stable@vger.kernel.org> # 3.15+: 75ec6e55
      
       ACPICA: Update to GPIO region handler interface.
      Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
      c15d821d
    • Matt Fleming's avatar
      x86/efi: Truncate 64-bit values when calling 32-bit OutputString() · 115c6628
      Matt Fleming authored
      If we're executing the 32-bit efi_char16_printk() code path (i.e.
      running on top of 32-bit firmware) we know that efi_early->text_output
      will be a 32-bit value, even though ->text_output has type u64.
      
      Unfortunately, we currently pass ->text_output directly to
      efi_early->call() so for CONFIG_X86_32 the compiler will push a 64-bit
      value onto the stack, causing the other parameters to be misaligned.
      
      The way we handle this in the rest of the EFI boot stub is to pass
      pointers as arguments to efi_early->call(), which automatically do the
      right thing (pointers are 32-bit on CONFIG_X86_32, and we simply ignore
      the upper 32-bits of the argument register if running in 64-bit mode
      with 32-bit firmware).
      
      This fixes a corruption bug when printing strings from the 32-bit EFI
      boot stub.
      
      Link: https://bugzilla.kernel.org/show_bug.cgi?id=84241
      
      Signed-off-by: default avatarMatt Fleming <matt.fleming@intel.com>
      115c6628
    • Bob Moore's avatar
      ACPICA: Update to GPIO region handler interface. · 75ec6e55
      Bob Moore authored
      
      
      Changes to correct several GPIO issues:
      
      1) The update_rule in a GPIO field definition is now ignored;
      a read-modify-write operation is never performed for GPIO fields.
      (Internally, this means that the field assembly/disassembly
      code is completely bypassed for GPIO.)
      
      2) The Address parameter passed to a GPIO region handler is
      now the bit offset of the field from a previous Connection()
      operator. Thus, it becomes a "Pin Number Index" into the
      Connection() resource descriptor.
      
      3) The bit_width parameter passed to a GPIO region handler is
      now the exact bit width of the GPIO field. Thus, it can be
      interpreted as "number of pins".
      
      Overall, we can now say that the region handler interface
      to GPIO handlers is a raw "bit/pin" addressed interface, not
      a byte-addressed interface like the system_memory handler interface.
      Signed-off-by: default avatarBob Moore <robert.moore@intel.com>
      Signed-off-by: default avatarLv Zheng <lv.zheng@intel.com>
      Cc: 3.15+ <stable@vger.kernel.org> # 3.15+
      Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
      75ec6e55
    • Dave Airlie's avatar
      Merge branch 'drm-fixes-3.17' of git://people.freedesktop.org/~agd5f/linux into drm-fixes · 67f33f30
      Dave Airlie authored
      - fix a backlight regression resulting in dark screen
      - add a PX quirk to avoid a hang with runtime pm
      - fix an init issue on the CIK compute rings
      - fix IH ring buffer overflows gracefully
      
      * 'drm-fixes-3.17' of git://people.freedesktop.org/~agd5f/linux:
        drm/radeon/cik: use a separate counter for CP init timeout
        drm/radeon: add PX quirk for asus K53TK
        drm/radeon: add a backlight quirk for Amilo Xi 2550
        drm/radeon: add a module parameter for backlight control (v2)
        drm/radeon: Update IH_RB_RPTR register after each processed interrupt
        drm/radeon: Make IH ring overflow debugging output more useful
        drm/radeon: Clear RB_OVERFLOW bit earlier
      67f33f30
    • Dave Airlie's avatar
      Merge tag 'drm-intel-fixes-2014-09-24' of git://anongit.freedesktop.org/drm-intel into drm-fixes · 65e7e5d8
      Dave Airlie authored
      a couple of small fixes for 3.17 still.
      
      * tag 'drm-intel-fixes-2014-09-24' of git://anongit.freedesktop.org/drm-intel:
        drm/i915/hdmi: fix hdmi audio state readout
        drm/i915: Don't leak command parser tables on suspend/resume
      65e7e5d8