1. 03 Apr, 2013 2 commits
    • Will Deacon's avatar
      ARM: 7687/1: atomics: don't use exclusives for atomic64 read/set with LPAE · 4fd75911
      Will Deacon authored
      To ease page table updates with 64-bit descriptors, CPUs implementing
      LPAE are required to implement ldrd/strd as atomic operations.
      
      This patch uses these accessors instead of the exclusive variants when
      performing atomic64_{read,set} on LPAE systems.
      Reviewed-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
      Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
      Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
      4fd75911
    • Thomas Petazzoni's avatar
      ARM: 7683/1: pci: add a align_resource hook · 029baf14
      Thomas Petazzoni authored
      The PCI specifications says that an I/O region must be aligned on a 4
      KB boundary, and a memory region aligned on a 1 MB boundary.
      
      However, the Marvell PCIe interfaces rely on address decoding windows
      (which allow to associate a range of physical addresses with a given
      device). For PCIe memory windows, those windows are defined with a 1
      MB granularity (which matches the PCI specs), but PCIe I/O windows can
      only be defined with a 64 KB granularity, so they have to be 64 KB
      aligned. We therefore need to tell the PCI core about this special
      alignement requirement.
      
      The PCI core already calls pcibios_align_resource() in the ARM PCI
      core, specifically for such purposes. So this patch extends the ARM
      PCI core so that it calls a ->align_resource() hook registered by the
      PCI driver, exactly like the existing ->map_irq() and ->swizzle()
      hooks.
      
      A particular PCI driver can register a align_resource() hook, and do
      its own specific alignement, depending on the specific constraints of
      the underlying hardware.
      Signed-off-by: default avatarThomas Petazzoni <thomas.petazzoni@free-electrons.com>
      Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
      029baf14
  2. 19 Mar, 2013 1 commit
    • Keun-O Park's avatar
      ARM: 7676/1: fix a wrong value returned from CALLER_ADDRn · 01223f36
      Keun-O Park authored
      This makes return_address() return a correct value for CALLER_ADDRn.
      To have a correct value from CALLER_ADDRn, we need to fix three points.
      
      * The unwind_frame() does not update frame->lr but frame->pc for backtrace.
      So frame->pc is meaningful for backtrace.
      
      * data.level should be adjusted by adding 2 additional iteration levels.
      With the current +1 level adjustment, the result of CALLER_ADDR1 will
      be the same return address with CALLER_ADDR0.
      
      * The initialization of data.addr to NULL is needed.
      When unwind_fame() fails right after data.level reaches zero,
      the routine returns data.addr which has uninitialized garbage value.
      Signed-off-by: default avatarSahara <keun-o.park@windriver.com>
      Reviewed-by: default avatarDave Martin <dave.martin@linaro.org>
      Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
      01223f36
  3. 15 Mar, 2013 2 commits
    • Shawn Guo's avatar
      ARM: 7672/1: uncompress debug support for multiplatform build · 3b4af9bc
      Shawn Guo authored
      Instead of giving zero support of uncompress debug for multiplatform
      build, the patch turns uncompress debug into one part of DEBUG_LL
      support.  When DEBUG_LL is turned on for a particular platform,
      uncompress debug works too for that platform.
      
      OMAP and Tegra are exceptions here.  OMAP low-level debug code places
      data in the .data section, and that is not allowed in decompressor.
      And Tegra code has reference to variable that's unavailable in
      decompressor but only in kernel.  That's why Kconfig symbol
      DEBUG_UNCOMPRESS controlling multiplatform uncompress debug support is
      defined with !DEBUG_OMAP2PLUS_UART && !DEBUG_TEGRA_UART.
      
      It creates arch/arm/boot/compressed/debug.S with CONFIG_DEBUG_LL_INCLUDE
      included there, implements a generic putc() using those macros, which
      will be built when DEBUG_UNCOMPRESS is defined.
      Signed-off-by: default avatarShawn Guo <shawn.guo@linaro.org>
      Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
      3b4af9bc
    • Shawn Guo's avatar
      ARM: 7671/1: use Kconfig to select uncompress.h · 615967b0
      Shawn Guo authored
      Following the approach handling DEBUG_LL inclusion, the patch creates
      a Kconfig symbol CONFIG_UNCOMPRESS_INCLUDE for choosing the correct
      uncompress header.  For traditional build, mach/uncompress.h will be
      included in arch/arm/boot/compressed/misc.c.  For multiplatform build,
      debug/uncompress.h which contains a suite of empty functions will be
      used.  In this way, a platform with particular uncompress.h
      implementation could choose its own uncompress.h with this Kconfig
      option.
      Signed-off-by: default avatarShawn Guo <shawn.guo@linaro.org>
      Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
      615967b0
  4. 10 Mar, 2013 2 commits
    • Linus Torvalds's avatar
      Linux 3.9-rc2 · f6161aa1
      Linus Torvalds authored
      f6161aa1
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace · 72932611
      Linus Torvalds authored
      Pull namespace bugfixes from Eric Biederman:
       "This is three simple fixes against 3.9-rc1.  I have tested each of
        these fixes and verified they work correctly.
      
        The userns oops in key_change_session_keyring and the BUG_ON triggered
        by proc_ns_follow_link were found by Dave Jones.
      
        I am including the enhancement for mount to only trigger requests of
        filesystem modules here instead of delaying this for the 3.10 merge
        window because it is both trivial and the kind of change that tends to
        bit-rot if left untouched for two months."
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
        proc: Use nd_jump_link in proc_ns_follow_link
        fs: Limit sys_mount to only request filesystem modules (Part 2).
        fs: Limit sys_mount to only request filesystem modules.
        userns: Stop oopsing in key_change_session_keyring
      72932611
  5. 09 Mar, 2013 5 commits
    • Linus Torvalds's avatar
      Atmel MXT touchscreen: increase reset timeouts · 8343bce1
      Linus Torvalds authored
      There is a more complete atmel patch-series out by Nick Dyer that fixes
      this and other things, but in the meantime this is the minimal thing to
      get the touchscreen going on (at least my) Pixel Chromebook.
      
      Not that I want my dirty fingers near that beautiful screen, but it
      seems that a non-initialized touchscreen will also end up being a
      constant wakeup source, so you have to disable it to go to sleep.  And
      it's easier to just fix the initialization sequence.
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      8343bce1
    • Eric W. Biederman's avatar
      proc: Use nd_jump_link in proc_ns_follow_link · db04dc67
      Eric W. Biederman authored
      Update proc_ns_follow_link to use nd_jump_link instead of just
      manually updating nd.path.dentry.
      
      This fixes the BUG_ON(nd->inode != parent->d_inode) reported by Dave
      Jones and reproduced trivially with mkdir /proc/self/ns/uts/a.
      
      Sigh it looks like the VFS change to require use of nd_jump_link
      happend while proc_ns_follow_link was baking and since the common case
      of proc_ns_follow_link continued to work without problems the need for
      making this change was overlooked.
      
      Cc: stable@vger.kernel.org
      Signed-off-by: default avatar"Eric W. Biederman" <ebiederm@xmission.com>
      db04dc67
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs · 0aefda3e
      Linus Torvalds authored
      Pull btrfs fixes from Chris Mason:
       "These are scattered fixes and one performance improvement.  The
        biggest functional change is in how we throttle metadata changes.  The
        new code bumps our average file creation rate up by ~13% in fs_mark,
        and lowers CPU usage.
      
        Stefan bisected out a regression in our allocation code that made
        balance loop on extents larger than 256MB."
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
        Btrfs: improve the delayed inode throttling
        Btrfs: fix a mismerge in btrfs_balance()
        Btrfs: enforce min_bytes parameter during extent allocation
        Btrfs: allow running defrag in parallel to administrative tasks
        Btrfs: avoid deadlock on transaction waiting list
        Btrfs: do not BUG_ON on aborted situation
        Btrfs: do not BUG_ON in prepare_to_reloc
        Btrfs: free all recorded tree blocks on error
        Btrfs: build up error handling for merge_reloc_roots
        Btrfs: check for NULL pointer in updating reloc roots
        Btrfs: fix unclosed transaction handler when the async transaction commitment fails
        Btrfs: fix wrong handle at error path of create_snapshot() when the commit fails
        Btrfs: use set_nlink if our i_nlink is 0
      0aefda3e
    • Benson Leung's avatar
      Platform: x86: chromeos_laptop : Add basic platform data for atmel devices · 2ef39204
      Benson Leung authored
      Add basic platform data to get the current upstream driver working
      with the 224s touchpad and 1664s touchscreen.
      We will be using NULL config so we will use the settings from the
      devices' NVRAMs.
      Signed-off-by: default avatarBenson Leung <bleung@chromium.org>
      Tested-by: default avatarOlof Johansson <olof@lixom.net>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      2ef39204
    • Daniel Kurtz's avatar
      Input: atmel_mxt_ts - Support for touchpad variant · 22dfab7f
      Daniel Kurtz authored
      This same driver can be used by atmel based touchscreens and touchpads
      (buttonpads). Platform data may specify a device is a touchpad
      using the is_tp flag.
      
      This will cause the driver to perform some touchpad specific
      initializations, such as:
        * register input device name "Atmel maXTouch Touchpad" instead of
        Touchscreen.
        * register BTN_LEFT & BTN_TOOL_* event types.
        * register axis resolution (as a fixed constant, for now)
        * register BUTTONPAD property
        * process GPIO buttons using reportid T19
      
      Input event GPIO mapping is done by the platform data key_map array.
      
      key_map[x] should contain the KEY or BTN code to send when processing
      GPIOx from T19. To specify a GPIO as not an input source, populate
      with KEY_RESERVED, or 0.
      Signed-off-by: default avatarDaniel Kurtz <djkurtz@chromium.org>
      Signed-off-by: default avatarBenson Leung <bleung@chromium.org>
      Signed-off-by: default avatarNick Dyer <nick.dyer@itdev.co.uk>
      Tested-by: default avatarOlof Johansson <olof@lixom.net>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      22dfab7f
  6. 08 Mar, 2013 19 commits
  7. 07 Mar, 2013 9 commits
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 47b3bc90
      Linus Torvalds authored
      Pull x86 fixes from Peter Anvin:
       "Several boot fixes (MacBook, legacy EFI bootloaders), another
        please-don't-brick fix, and some minor stuff."
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86: Do not try to sync identity map for non-mapped pages
        x86, doc: Be explicit about what the x86 struct boot_params requires
        x86: Don't clear efi_info even if the sentinel hits
        x86, mm: Make sure to find a 2M free block for the first mapped area
        x86: Fix 32-bit *_cpu_data initializers
        efivarfs: return accurate error code in efivarfs_fill_super()
        efivars: efivarfs_valid_name() should handle pstore syntax
        efi: be more paranoid about available space when creating variables
        iommu, x86: Add DMA remap fault reason
        x86, smpboot: Remove unused variable
      47b3bc90
    • Linus Torvalds's avatar
      Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux · af2841cd
      Linus Torvalds authored
      Pull drm fixes from Dave Airlie:
       "Misc radeon, nouveau, mgag200 and intel fixes.
      
        The intel fixes should contain the fix for the touchpad on the
        Chromebook - hey I'm an input maintainer now!"
      
      Hate to pee on your parade, Dave, but I don't think being an input
      maintainer is necessarily something to strive for..
      
      * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (25 commits)
        drm/tegra: drop "select DRM_HDMI"
        drm: Documentation typo fixes
        drm/mgag200: Bug fix: Renesas board now selects native resolution.
        drm/mgag200: Reject modes that are too big for VRAM
        drm/mgag200: 'fbdev_list' in 'struct mga_fbdev' is not used
        drm/radeon: don't check mipmap alignment if MIP_ADDRESS is FMASK
        drm/radeon: skip MC reset as it's probably not hung
        drm/radeon: add primary dac adj quirk for R200 board
        drm/radeon: don't set hpd, afmt interrupts when interrupts are disabled
        drm/i915: Turn off hsync and vsync on ADPA when disabling crt
        drm/i915: Fix incorrect definition of ADPA HSYNC and VSYNC bits
        drm/i915: also disable south interrupts when handling them
        drm/i915: enable irqs earlier when resuming
        drm/i915: Increase the RC6p threshold.
        DRM/i915: On G45 enable cursor plane briefly after enabling the display plane.
        drm/nv50-: prevent some races between modesetting and page flipping
        drm/nouveau/i2c: drop parent refcount when creating ports
        drm/nv84: fix regression in page flipping
        drm/nouveau: Fix typo in init_idx_addr_latched().
        drm/nouveau: Disable AGP on PowerPC again.
        ...
      af2841cd
    • Linus Torvalds's avatar
      Merge tag 'pm+acpi-3.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · c89b148f
      Linus Torvalds authored
      Pull ACPI and power management fixes from Rafael J Wysocki:
      
       - Two fixes for the new intel_pstate driver from Dirk Brandewie.
      
       - Fix for incorrect usage of the .find_bridge() callback from struct
         acpi_bus_type in the USB core and subsequent removal of that callback
         from Rafael J Wysocki.
      
       - ACPI processor driver cleanups from Chen Gang and Syam Sidhardhan.
      
       - ACPI initialization and error messages fix from Joe Perches.
      
       - Operating Performance Points documentation improvement from Nishanth
         Menon.
      
       - Fixes for memory leaks and potential concurrency issues and sysfs
        attributes leaks during device removal in the core device PM QoS code
        from Rafael J Wysocki.
      
       - Calxeda Highbank cpufreq driver simplification from Emilio López.
      
       - cpufreq comment cleanup from Namhyung Kim.
      
       - Fix for a section mismatch in Calxeda Highbank interprocessor
         communication code from Mark Langsdorf (this is not a PM fix strictly
         speaking, but the code in question went in through the PM tree).
      
      * tag 'pm+acpi-3.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        cpufreq / intel_pstate: Do not load on VM that does not report max P state.
        cpufreq / intel_pstate: Fix intel_pstate_init() error path
        ACPI / glue: Drop .find_bridge() callback from struct acpi_bus_type
        ACPI / glue: Add .match() callback to struct acpi_bus_type
        ACPI / porocessor: Beautify code, pr->id is u32 which is never < 0
        ACPI / processor: Remove redundant NULL check before kfree
        ACPI / Sleep: Avoid interleaved message on errors
        PM / QoS: Remove device PM QoS sysfs attributes at the right place
        PM / QoS: Fix concurrency issues and memory leaks in device PM QoS
        cpufreq: highbank: do not initialize array with a loop
        PM / OPP: improve introductory documentation
        cpufreq: Fix a typo in comment
        mailbox, pl320-ipc: remove __init from probe function
      c89b148f
    • Paul Bolle's avatar
      drm/tegra: drop "select DRM_HDMI" · 36c1813b
      Paul Bolle authored
      Commit ac24c220 ("drm/tegra: Use generic
      HDMI infoframe helpers") added "select DRM_HDMI" to the DRM_TEGRA
      Kconfig entry. But there is no Kconfig symbol named DRM_HDMI. The select
      statement for that symbol is a nop. Drop it.
      
      What was needed to use HDMI functionality was to select HDMI (which this
      entry already did through depending on DRM) and to include linux/hdmi.h
      (which this commit also did).
      Signed-off-by: default avatarPaul Bolle <pebolle@tiscali.nl>
      Acked-by: default avatarThierry Reding <thierry.reding@avionic-design.de>
      Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
      36c1813b
    • Christopher Harvey's avatar
      drm: Documentation typo fixes · 13bcf01b
      Christopher Harvey authored
      Signed-off-by: default avatarChristopher Harvey <charvey@matrox.com>
      Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
      13bcf01b
    • Julia Lemire's avatar
      drm/mgag200: Bug fix: Renesas board now selects native resolution. · ce495960
      Julia Lemire authored
      Renesas boards were consistently defaulting to the 1024x768 resolution,
      regardless of the native resolution of the monitor plugged in.  It was
      determined that the EDID of the monitor was not being read.  Since the
      DAC is a shared line, in order to read from or write to it we must take
      control of the DAC clock.  This can be done by setting the proper
      register to one.
      
      This bug fix sets the register MGA1064_GEN_IO_CTL2 to one.  The DAC
      control line can be used to determine whether or not a new monitor has
      been plugged in.  But since the hotplug feature is not one we will
      support, it has been decided to simply leave the register set to one.
      Signed-off-by: default avatarJulia Lemire <jlemire@matrox.com>
      Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
      ce495960
    • Christopher Harvey's avatar
      drm/mgag200: Reject modes that are too big for VRAM · 0ba53171
      Christopher Harvey authored
      A monitor or a user could request a resolution greater than the
      available VRAM for the backing framebuffer. This change checks the
      required framebuffer size against the max VRAM size and rejects modes
      if they are too big. This change can also remove a mode request passed
      in via the video= parameter.
      Signed-off-by: default avatarChristopher Harvey <charvey@matrox.com>
      Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
      0ba53171
    • Christopher Harvey's avatar
    • Dave Airlie's avatar
      Merge branch 'drm-fixes-3.9' of git://people.freedesktop.org/~agd5f/linux into drm-next · 9d624526
      Dave Airlie authored
      Alex writes:
        Radeon fixes pull.  Not much to it.
        - fix some splatter if the interrupt handler isn't registered
        - Add a quirk for an old R200 board to fix washed out colors on the DAC
        - Don't try and soft reset the MC when we reset the GPU.  It usually doesn't
          need it and doesn't always work reliably.
        - A CS checker fix from Marek
      
      * 'drm-fixes-3.9' of git://people.freedesktop.org/~agd5f/linux:
        drm/radeon: don't check mipmap alignment if MIP_ADDRESS is FMASK
        drm/radeon: skip MC reset as it's probably not hung
        drm/radeon: add primary dac adj quirk for R200 board
        drm/radeon: don't set hpd, afmt interrupts when interrupts are disabled
      9d624526