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tag: v2.6.35-rc4
Commits on Jul 5, 2010
  1. @torvalds

    Linux 2.6.35-rc4

    torvalds authored
  2. @torvalds

    Merge master.kernel.org:/home/rmk/linux-2.6-arm

    torvalds authored
    * master.kernel.org:/home/rmk/linux-2.6-arm:
      ARM: 6205/1: perf: ensure counter delta is treated as unsigned
      ARM: 6202/1: Do not ARM_DMA_MEM_BUFFERABLE on RealView boards with L210/L220
      ARM: 6201/1: RealView: Do not use outer_sync() on ARM11MPCore boards with L220
      ARM: 6195/1: OMAP3: pmu: make CPU_HAS_PMU dependent on OMAP3_EMU
      ARM: 6194/1: change definition of cpu_relax() for ARM11MPCore
      ARM: 6193/1: RealView: Align the machine_desc.phys_io to 1MB section
      ARM: 6192/1: VExpress: Align the machine_desc.phys_io to 1MB section
      ARM: 6188/1: Add a config option for the ARM11MPCore DMA cache maintenance workaround
      ARM: 6187/1: The v6_dma_inv_range() function must preserve data on SMP
      ARM: 6186/1: Avoid the CONSISTENT_DMA_SIZE warning on noMMU builds
      ARM: mx3: mx31lilly: fix build error for !CONFIG_USB_ULPI
      [ARM] mmp: fix build failure due to IRQ_PMU depends on ARCH_PXA
      [ARM] pxa/mioa701: fix camera regression
      [ARM] pxa/z2: fix flash layout to final version
      [ARM] pxa/z2: fix missing include in battery driver
      [ARM] pxa: fix incorrect gpio type in udc_pxa2xx.h
  3. @torvalds

    Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/l…

    torvalds authored
    …inux/kernel/git/tip/linux-2.6-tip
    
    * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
      perf, x86: Fix incorrect branches event on AMD CPUs
      perf tools: Fix find tids routine by excluding "." and ".."
      x86: Send a SIGTRAP for user icebp traps
  4. @yehudasa @torvalds

    module: initialize module dynamic debug later

    yehudasa authored torvalds committed
    We should initialize the module dynamic debug datastructures
    only after determining that the module is not loaded yet. This
    fixes a bug that introduced in 2.6.35-rc2, where when a trying
    to load a module twice, we also load it's dynamic printing data
    twice which causes all sorts of nasty issues. Also handle
    the dynamic debug cleanup later on failure.
    
    Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
    Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (removed a #ifdef)
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  5. @torvalds

    Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs

    torvalds authored
    * 'for-linus' of git://oss.sgi.com/xfs/xfs:
      xfs: remove block number from inode lookup code
      xfs: rename XFS_IGET_BULKSTAT to XFS_IGET_UNTRUSTED
      xfs: validate untrusted inode numbers during lookup
      xfs: always use iget in bulkstat
      xfs: prevent swapext from operating on write-only files
  6. @torvalds

    Merge branch 'merge-devicetree' of git://git.secretlab.ca/git/linux-2.6

    torvalds authored
    * 'merge-devicetree' of git://git.secretlab.ca/git/linux-2.6:
      of/dma: fix build breakage in ppc4xx adma driver
  7. @torvalds

    Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel…

    torvalds authored
    …/git/mchehab/i7core
    
    * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/i7core:
      MAINTAINERS: Add an entry for i7core_edac
      i7core_edac: Avoid doing multiple probes for the same card
      i7core_edac: Properly discover the first QPI device
  8. @torvalds

    Merge branch 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/…

    torvalds authored
    …git/mmarek/kbuild-2.6
    
    * 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
      kbuild: Propagate LOCALVERSION= down to scripts/setlocalversion
      kbuild: Clean up and speed up the localversion logic
Commits on Jul 4, 2010
  1. @wildea01

    ARM: 6205/1: perf: ensure counter delta is treated as unsigned

    wildea01 authored Russell King committed
    Hardware performance counters on ARM are 32-bits wide but atomic64_t
    variables are used to represent counter data in the hw_perf_event structure.
    
    The armpmu_event_update function right-shifts a signed 64-bit delta variable
    and adds the result to the event count. This can lead to shifting in sign-bits
    if the MSB of the 32-bit counter value is set. This results in perf output
    such as:
    
     Performance counter stats for 'sleep 20':
    
     18446744073460670464  cycles             <-- 0xFFFFFFFFF12A6000
            7783773  instructions             #      0.000 IPC
                465  context-switches
                161  page-faults
            1172393  branches
    
       20.154242147  seconds time elapsed
    
    This patch ensures that the delta value is treated as unsigned so that the
    right shift sets the upper bits to zero.
    
    Cc: <stable@kernel.org>
    Acked-by: Jamie Iles <jamie.iles@picochip.com>
    Signed-off-by: Will Deacon <will.deacon@arm.com>
    Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Commits on Jul 3, 2010
  1. @deater

    perf, x86: Fix incorrect branches event on AMD CPUs

    deater authored Ingo Molnar committed
    While doing some performance counter validation tests on some
    assembly language programs I noticed that the "branches:u"
    count was very wrong on AMD machines.
    
    It looks like the wrong event was selected.
    
    Signed-off-by: Vince Weaver <vweaver1@eecs.utk.edu>
    Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
    Cc: Paul Mackerras <paulus@samba.org>
    Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
    Cc: Robert Richter <robert.richter@amd.com>
    Cc: Borislav Petkov <borislav.petkov@amd.com>
    Cc: Frederic Weisbecker <fweisbec@gmail.com>
    Cc: <stable@kernel.org>
    LKML-Reference: <alpine.DEB.2.00.1007011526010.23160@cl320.eecs.utk.edu>
    Signed-off-by: Ingo Molnar <mingo@elte.hu>
Commits on Jul 2, 2010
  1. @djbw

    of/dma: fix build breakage in ppc4xx adma driver

    djbw authored Grant Likely committed
    Convert ppc4xx adma driver to use new node pointer location
    
    Signed-off-by: Dan Williams <dan.j.williams@intel.com>
    Acked-by: Anatolij Gustschin <agust@denx.de>
    Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
  2. MAINTAINERS: Add an entry for i7core_edac

    Mauro Carvalho Chehab authored
    While here, fixes the mailing list for i5400_edac
    
    Acked-by: Doug Thompson <dougthompson@xmission.com>
    Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
  3. i7core_edac: Avoid doing multiple probes for the same card

    Mauro Carvalho Chehab authored
    As Nehalem/Nehalem-EP/Westmere devices uses several devices for the same
    functionality (memory controller), the default way of proping devices doesn't
    work. So, instead of a per-device probe, all devices should be probed at once.
    
    This means that we should block any new attempt of probe, otherwise, it will
    try to register the same device several times.
    
    Acked-by: Doug Thompson <dougthompson@xmission.com>
    Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
  4. i7core_edac: Properly discover the first QPI device

    Mauro Carvalho Chehab authored
    On Nehalem/Nehalem-EP/Westmere, the first QPI device is the last PCI bus.
    The last bus is generally at 0x3f or 0xff, but there are also other systems
    using different setups. For example, HP Z800 has 0x7f as the last bus.
    
    This patch adds a logic to discover the last bus, dynamically detecting it
    at runtime.
    
    Acked-by: Doug Thompson <dougthompson@xmission.com>
    Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
  5. @torvalds

    Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/…

    torvalds authored
    …linux/kernel/git/tip/linux-2.6-tip
    
    * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
      sched: Cure nr_iowait_cpu() users
      init: Fix comment
      init, sched: Fix race between init and kthreadd
  6. @torvalds

    Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel…

    torvalds authored
    …/git/bp/bp
    
    * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
      amd64_edac: Fix syndrome calculation on K8
  7. amd64_edac: Fix syndrome calculation on K8

    Borislav Petkov authored
    When calculating the DCT channel from the syndrome we need to know the
    syndrome type (x4 vs x8). On F10h, this is read out from extended PCI
    cfg space register F3x180 while on K8 we only support x4 syndromes and
    don't have extended PCI config space anyway.
    
    Make the code accessing F3x180 F10h only and fall back to x4 syndromes
    on everything else.
    
    Cc: <stable@kernel.org> # .33.x .34.x
    Reported-by: Jeffrey Merkey <jeffmerkey@gmail.com>
    Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
  8. @michal42
  9. ARM: 6202/1: Do not ARM_DMA_MEM_BUFFERABLE on RealView boards with L2…

    Catalin Marinas authored Russell King committed
    …10/L220
    
    RealView boards with certain revisions of the L210/L220 cache controller
    may have issues (hardware deadlock) with the mandatory barriers (DSB
    followed by an L2 cache sync) when ARM_DMA_MEM_BUFFERABLE is enabled.
    The patch disables ARM_DMA_MEM_BUFFERABLE for these boards.
    
    Tested-by: Linus Walleij <linus.walleij@stericsson.com>
    Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
    Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
  10. ARM: 6201/1: RealView: Do not use outer_sync() on ARM11MPCore boards …

    Catalin Marinas authored Russell King committed
    …with L220
    
    RealView boards with certain revisions of the L220 cache controller (ARM11*
    processors only) may have issues (hardware deadlock) with the recent changes to
    the mb() barrier implementation (DSB followed by an L2 cache sync). The patch
    redefines the RealView ARM11MPCore mandatory barriers without the outer_sync()
    call.
    
    Cc: <stable@kernel.org>
    Tested-by: Linus Walleij <linus.walleij@stericsson.com>
    Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
    Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
  11. @torvalds

    Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel…

    torvalds authored
    …/git/anholt/drm-intel
    
    * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel:
      drm/i915: fix page flip finish vs. prepare on plane B
      drm/i915: change default panel fitting mode to preserve aspect ratio
      drm/i915: fix uninitialized variable warning in i915_setup_compression()
      drm/i915: take struct_mutex in i915_dma_cleanup()
      drm/i915: Fix CRT hotplug regression in 2.6.35-rc1
      i915: fix ironlake edp panel setup (v4)
      drm/i915: don't access FW_BLC_SELF on 965G
      drm/i915: Account for space on the ring buffer consumed whilst wrapping.
      drm/i915: gen3 page flipping fixes
      drm/i915: don't queue flips during a flip pending event
      drm/i915: Fix incorrect intel_ring_begin size in BSD ringbuffer.
      drm/i915: Turn on 945 self-refresh only if single CRTC is active
      drm/i915/gen4: Fix interrupt setup ordering
      drm/i915: Use RSEN instead of HTPLG for tfp410 monitor detection.
      drm/i915: Move non-phys cursors into the GTT
      Revert "drm/i915: Don't enable pipe/plane/VCO early (wait for DPMS on)."
    
    (Included the "fix page flip finish vs.  prepare on plane B" patch from
    Jesse on top of the pull request from Eric.   -- Linus)
  12. @torvalds

    drm/i915: fix page flip finish vs. prepare on plane B

    Jesse Barnes authored torvalds committed
    The refreshed patch had a copy & paste bug.
    
    Reported-by: Simon Farnsworth <simon.farnsworth@onelan.com>
    Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  13. @torvalds

    Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/k…

    torvalds authored
    …ernel/git/jgarzik/libata-dev
    
    * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
      ata_generic: implement ATA_GEN_* flags and force enable DMA on MBP 7,1
      ahci,ata_generic: let ata_generic handle new MBP w/ MCP89
      libahci: Fix bug in storing EM messages
  14. @torvalds

    correct console log level when ERST ACPI table is not found

    Daniel J Blueman authored torvalds committed
    When booting 2.6.35-rc3 on a x86 system without an ERST ACPI table with
    the 'quiet' option, we still observe an "ERST: Table is not found!"
    warning.
    
    Quiesce it to the same info log level as the other 'table not found'
    warnings.
    
    Signed-off-by: Daniel J Blueman <daniel.blueman@gmail.com>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
  15. @torvalds

    drm/i915: fix hibernation since i915 self-reclaim fixes

    torvalds authored
    Since commit 4bdadb9 ("drm/i915:
    Selectively enable self-reclaim"), we've been passing GFP_MOVABLE to the
    i915 page allocator where we weren't before due to some over-eager
    removal of the page mapping gfp_flags games the code used to play.
    
    This caused hibernate on Intel hardware to result in a lot of memory
    corruptions on resume.  See for example
    
      http://bugzilla.kernel.org/show_bug.cgi?id=13811
    
    Reported-by: Evengi Golov (in bugzilla)
    Signed-off-by: Dave Airlie <airlied@redhat.com>
    Tested-by: M. Vefa Bicakci <bicave@superonline.com>
    Cc: stable@kernel.org
    Cc: Chris Wilson <chris@chris-wilson.co.uk>
    Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
    Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commits on Jul 1, 2010
  1. @anholt

    drm/i915: change default panel fitting mode to preserve aspect ratio

    Jesse Barnes authored anholt committed
    We did this a long time ago in the DDX driver, but now this fix belongs
    in the kernel.
    
    Preserving the aspect ratio is a nicer default.
    
    Fixes https://bugs.freedesktop.org/show_bug.cgi?id=18033.
    
    Tested-by: Josh Triplett <josh@freedesktop.org>
    Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
    Signed-off-by: Eric Anholt <eric@anholt.net>
  2. @prarit @anholt

    drm/i915: fix uninitialized variable warning in i915_setup_compression()

    prarit authored anholt committed
    Fixes:
    
    drivers/gpu/drm/i915/i915_dma.c: In function ‘i915_setup_compression’:
    drivers/gpu/drm/i915/i915_dma.c:1311: error: ‘compressed_llb’ may be used uninitialized in this function
    
    Signed-off-by: Prarit Bhargava <prarit@redhat.com>
    Signed-off-by: Eric Anholt <eric@anholt.net>
  3. @error27 @anholt

    drm/i915: take struct_mutex in i915_dma_cleanup()

    error27 authored anholt committed
    intel_cleanup_ring_buffer() calls drm_gem_object_unreference() (as
    opposed to drm_gem_object_unreference_unlocked()) so it needs to be
    called with "struct_mutex" held.  If we don't hold the lock, it triggers
    a BUG_ON(!mutex_is_locked(&dev->struct_mutex));
    
    I also audited the other places that call intel_cleanup_ring_buffer()
    and they all hold the lock so they're OK.
    
    This was introduced in: 8187a2b "drm/i915: introduce
    intel_ring_buffer structure (V2)" and it's a regression from v2.6.34.
    
    Addresses: https://bugzilla.kernel.org/show_bug.cgi?id=16247
    
    Signed-off-by: Dan Carpenter <error27@gmail.com>
    Reported-by: Benny Halevy <bhalevy@panasas.com>
    Tested-by: Benny Halevy <bhalevy@panasas.com>
    Signed-off-by: Eric Anholt <eric@anholt.net>
  4. @amluto @anholt

    drm/i915: Fix CRT hotplug regression in 2.6.35-rc1

    amluto authored anholt committed
    Commit 7a772c4 has two bugs which
    made the hotplug problems on my laptop worse instead of better.
    
    First, it did not, in fact, disable the CRT plug interrupt -- it
    disabled all the other hotplug interrupts.  It seems rather doubtful
    that that bit of the patch fixed anything, so let's just remove it.
    (If you want to add it back, you probably meant ~CRT_HOTPLUG_INT_EN.)
    
    Second, on at least my GM45, setting CRT_HOTPLUG_ACTIVATION_PERIOD_64
    and CRT_HOTPLUG_VOLTAGE_COMPARE_50 (when they were previously unset)
    causes a hotplug interrupt about three seconds later.  The old code
    never restored PORT_HOTPLUG_EN so this could only happen once, but
    they new code restores those registers.  So just set those bits when
    we set up the interrupt in the first place.
    
    Signed-off-by: Andy Lutomirski <luto@mit.edu>
    Signed-off-by: Eric Anholt <eric@anholt.net>
  5. @anholt

    i915: fix ironlake edp panel setup (v4)

    Dave Airlie authored anholt committed
    The eDP spec claims a 20% overhead for the 8:10 encoding scheme used
    on the wire. Take this into account when picking the lane/clock speed
    for the panel.
    
    v3: some panels are out of spec, try our best to deal with them, don't
    refuse modes on eDP panels, and try the largest allowed settings if
    all else fails on eDP.
    v4: fix stupid typo, forgot to git add before amending.
    
    Fixes several reports in bugzilla:
    
          https://bugs.freedesktop.org/show_bug.cgi?id=28070
    
    Signed-off-by: Dave Airlie <airlied@redhat.com>
    Signed-off-by: Eric Anholt <eric@anholt.net>
  6. @anholt

    drm/i915: don't access FW_BLC_SELF on 965G

    Jesse Barnes authored anholt committed
    The register offset for FW_BLC_SELF is a totally different set of bits
    on Broadwater (it's actually MI_RDRET_STATE), so don't treat it like
    FW_BLC_SELF on 965G chips.
    
    Fixes bug https://bugs.freedesktop.org/show_bug.cgi?id=26874.
    
    Cc: stable@kernel.org
    Tested-by: Norman Yarvin <yarvin@yarchive.net>
    Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
    Signed-off-by: Eric Anholt <eric@anholt.net>
  7. @ickle @anholt

    drm/i915: Account for space on the ring buffer consumed whilst wrapping.

    ickle authored anholt committed
    If we fill the tail of the physical ring buffer with NOOP when wrapping,
    we need to account for the reduction in available space.
    
    Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
    Signed-off-by: Eric Anholt <eric@anholt.net>
  8. ata_generic: implement ATA_GEN_* flags and force enable DMA on MBP 7,1

    Tejun Heo authored Jeff Garzik committed
    IDE mode of MCP89 on MBP 7,1 doesn't set DMA enable bits in the BMDMA
    status register.  Make the following changes to work around the problem.
    
    * Instead of using hard coded 1 in id->driver_data as class code
      match, use ATA_GEN_CLASS_MATCH and carry the matched id in
      host->private_data.
    
    * Instead of matching PCI_VENDOR_ID_CENATEK, use ATA_GEN_FORCE_DMA
      flag in id instead.
    
    * Add ATA_GEN_FORCE_DMA to the id entry of MBP 7,1.
    
    Signed-off-by: Tejun Heo <tj@kernel.org>
    Cc: Peer Chen <pchen@nvidia.com>
    Cc: stable@kernel.org
    Reported-by: Anders Østhus <grapz666@gmail.com>
    Reported-by: Andreas Graf <andreas_graf@csgraf.de>
    Reported-by: Benoit Gschwind <gschwind@gnu-log.net>
    Reported-by: Damien Cassou <damien.cassou@gmail.com>
    Reported-by: tixetsal@juno.com
    Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
  9. ahci,ata_generic: let ata_generic handle new MBP w/ MCP89

    Tejun Heo authored Jeff Garzik committed
    For yet unknown reason, MCP89 on MBP 7,1 doesn't work w/ ahci under
    linux but the controller doesn't require explicit mode setting and
    works fine with ata_generic.  Make ahci ignore the controller on MBP
    7,1 and let ata_generic take it for now.
    
    Reported in bko#15923.
    
      https://bugzilla.kernel.org/show_bug.cgi?id=15923
    
    NVIDIA is investigating why ahci mode doesn't work.
    
    Signed-off-by: Tejun Heo <tj@kernel.org>
    Cc: Peer Chen <pchen@nvidia.com>
    Cc: stable@kernel.org
    Reported-by: Anders Østhus <grapz666@gmail.com>
    Reported-by: Andreas Graf <andreas_graf@csgraf.de>
    Reported-by: Benoit Gschwind <gschwind@gnu-log.net>
    Reported-by: Damien Cassou <damien.cassou@gmail.com>
    Reported-by: tixetsal@juno.com
    Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
  10. libahci: Fix bug in storing EM messages

    Harry Zhang authored Jeff Garzik committed
    In function ahci_store_em_buffer(), if the input (signed char*) buffer
    contains negative data, the constructed 32-bit long message data may
    be wrong.
    
    Signed-off-by: Harry Zhang <harry.zhang@amd.com>
    Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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