21 Aug, 2012

1 commit


17 Aug, 2012

10 commits

  • Linus Torvalds
     
  • Following a report of a crash during an automount expire I found that
    the locking in fs/autofs4/expire.c:get_next_positive_subdir() was wrong.
    Not only is the locking wrong but the function is more complex than it
    needs to be.

    The function is meant to calculate (and dget) the next entry in the list
    of directories contained in the root of an autofs mount point (an autofs
    indirect mount to be precise). The main problem was that the d_lock of
    the owner of the list was not being taken when walking the list, which
    lead to list corruption under load. The only other lock that needs to
    be taken is against the next dentry candidate so it can be checked for
    usability.

    Signed-off-by: Ian Kent
    Signed-off-by: Linus Torvalds

    Ian Kent
     
  • Pull VFIO fix from Alex Williamson:
    "Just a trivial patch to include vfio.h in the installed headers so we
    can complete userspace integration into QEMU."

    * tag 'vfio-for-v3.6-rc1' of git://github.com/awilliam/linux-vfio:
    vfio: Include vfio.h in installed headers

    Linus Torvalds
     
  • Pull fuse updates from Miklos Szeredi.

    * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
    fuse: verify all ioctl retry iov elements
    fuse: add missing INIT flag descriptions
    fuse: add missing INIT flags
    fuse: update attributes on aio_read
    fuse: invalidate inode mapping if mtime changes
    fuse: add FUSE_AUTO_INVAL_DATA init flag

    Linus Torvalds
     
  • Pull Xen fix from Konrad Rzeszutek Wilk:
    "Way back in v3.5 we added a mechanism to populate back pages that were
    released (they overlapped with MMIO regions), but neglected to reserve
    the proper amount of virtual space for extend_brk to work properly.

    Coincidentally some other commit aligned the _brk space to larger area
    so I didn't trigger this until it was run on a machine with more than
    2GB of MMIO space."

    * On machines with large MMIO/PCI E820 spaces we fail to boot b/c
    we failed to pre-allocate large enough virtual space for extend_brk.

    * tag 'stable/for-linus-3.6-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
    xen/p2m: Reserve 8MB of _brk space for P2M leafs when populating back.

    Linus Torvalds
     
  • Pull SuperH fixes from Paul Mundt.

    * tag 'sh-for-linus' of git://github.com/pmundt/linux-sh:
    sh: intc: Handle domain association for sparseirq pre-allocated vectors.
    sh: sh7269: Fix LCD pinmux
    sh: dma: fix request_irq usage

    Linus Torvalds
     
  • Moved to djbw@fb.com

    Cc: Dave Jiang
    Cc: Vinod Koul
    Signed-off-by: Dan Williams
    Signed-off-by: Linus Torvalds

    Dan Williams
     
  • When dumping "Code: " sections from an oops, the trapping instruction
    %rip points to can be a string copy

    2b:* f3 a5 rep movsl %ds:(%rsi),%es:(%rdi)

    and the line contain a bunch of ":". Current "cut" selects only the and
    the second field output looks funnily overlaid this:

    2b:* f3 a5 rep movsl %ds
    Cc: Linus Torvalds
    Cc: linux-kbuild@vger.kernel.org
    Signed-off-by: Borislav Petkov
    Signed-off-by: Linus Torvalds

    Borislav Petkov
     
  • Pull two slave-dmaengine fixes from Vinod Koul:
    "One fixes the correct use of clock API in imx driver and the other
    enables clock for tegra driver, which is used for other tegra driver
    conversion to dmanegine in -next."

    * 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
    dma: tegra: enable/disable dma clock
    dma: imx-dma: Fix kernel crash due to missing clock conversion

    Linus Torvalds
     
  • Pull more drm fixes from Dave Airlie:
    "Just some intel and nouveau ones this time, intel has more edp panel
    fixes for macbooks and nouveau has a suspend/resume regression fix in
    there."

    * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
    drm/i915: Apply post-sync write for pipe control invalidates
    drm/i915: reorder edp disabling to fix ivb MacBook Air
    drm/nv86/fifo: suspend fix
    drm/nouveau: disable copy engine on NVAF
    nouveau: fixup scanout enable in nvc0_pm
    drm/nouveau/aux: mask off higher bits of auxch index in i2c table entry
    drm/nvd0/disp: mask off high 16 bit of negative cursor x-coordinate
    drm/i915: ensure i2c adapter is all set before adding it
    drm/i915: ignore eDP bpc settings from vbt
    drm/i915: Fix blank panel at reopening lid
    drm/nve0/fifo: add support for the flip completion swmthd

    Linus Torvalds
     

16 Aug, 2012

1 commit


15 Aug, 2012

3 commits

  • * 'drm-nouveau-fixes' of git://git.freedesktop.org/git/nouveau/linux-2.6:
    drm/nv86/fifo: suspend fix
    drm/nouveau: disable copy engine on NVAF
    nouveau: fixup scanout enable in nvc0_pm
    drm/nouveau/aux: mask off higher bits of auxch index in i2c table entry
    drm/nvd0/disp: mask off high 16 bit of negative cursor x-coordinate
    drm/nve0/fifo: add support for the flip completion swmthd

    Dave Airlie
     
  • Daniel Vetter writes:

    "A few important fixers:
    - fix various lvds backlight issues, regressed in 3.6 (Takashi Iwai)
    - make the retina mbp work (ignore bogus edp bpc value in vbt)
    - fix a gmbus regression introduced in (iirc) 3.4 (Jani Nikula)
    - fix an edp panel power sequence regression, fixes the new macbook air
    - apply the tlb invalidate w/a

    Otherwise we still have another gmbus regression (patches are awaiting
    tested-bys) and there's something odd going with some rare systems not
    entering rc6 often enough (and hence blowing through too much power). It
    seems to be a timing-related issue and can be mitigated by frobbing the
    magic tuning parameters. We're still working on that one. Also, we still
    have some fallout from the hw context support, but you can only hit that
    with mesa master."

    * 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel:
    drm/i915: Apply post-sync write for pipe control invalidates
    drm/i915: reorder edp disabling to fix ivb MacBook Air
    drm/i915: ensure i2c adapter is all set before adding it
    drm/i915: ignore eDP bpc settings from vbt
    drm/i915: Fix blank panel at reopening lid

    Dave Airlie
     
  • On a 2-node machine with 256GB of ram we get 512 lines of
    console output, which is just too much.

    This mimicks Yinghai Lu's x86 commit c2b91e2eec9678dbda274e906cc32ea8f711da3b
    (x86_64/mm: check and print vmemmap allocation continuous) except that
    we aren't ever going to get contiguous block pointers in between calls
    so just print when the virtual address or node changes.

    This decreases the output by an order of 16.

    Also demote this to KERN_DEBUG.

    Signed-off-by: David S. Miller

    David S. Miller
     

14 Aug, 2012

12 commits

  • When invalidating the TLBs it is documentated as requiring a post-sync
    write. Failure to do so seems to result in a GPU hang.

    Exposure to this hang on IVB seems to be a result of removing the extra
    stalls required for SNB pipecontrol workarounds:

    commit 6c6cf5aa9c583478b19e23149feaa92d01fb8c2d
    Author: Chris Wilson
    Date: Fri Jul 20 18:02:28 2012 +0100

    drm/i915: Only apply the SNB pipe control w/a to gen6

    Note: Manually switch the pipe_control cmd to 4 dwords to avoid a
    (silent) functional conflict with -next. This way will get a loud (but
    conflict with next (since the scratch_addr has been deleted there).

    Reported-and-tested-by: yex.tian@intel.com
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=53322
    Acked-by: Ben Widawsky
    Signed-off-by: Chris Wilson
    [danvet: added note about merge conflict with -next.]
    Signed-off-by: Daniel Vetter

    Chris Wilson
     
  • eDP is tons of fun. It turns out that at least the new MacBook Air 5,1
    model absolutely doesn't like the new force vdd dance we've introduced
    in

    commit 6cb49835da0426f69a2931bc2a0a8156344b0e41
    Author: Daniel Vetter
    Date: Sun May 20 17:14:50 2012 +0200

    drm/i915: enable vdd when switching off the eDP panel

    But that patch also tried to fix some neat edp sequence issue with the
    force_vdd timings. Closer inspection reveals that we've raised
    force_vdd only to do the aux channel communication dp_sink_dpms. If we
    move the edp_panel_off below that, we don't need any force_vdd for the
    disable sequence, which makes the Air happy.

    Unfortunately the reporter of the original bug that the above commit
    fixed is travelling, so we can't test whether this regresses things.
    But my theory is that since we don't check for any power-off ->
    force_vdd-on delays in edp_panel_vdd_on, this was the actual
    root-cause of this failure. With that force_vdd dance completely
    eliminated, I'm hopeful the original bug stays fixed, too.

    For reference the old bug, which hopefully doesn't get broken by this:

    https://bugzilla.kernel.org/show_bug.cgi?id=43163

    In any case, regression fixers win over plain bugfixes, so this needs
    to go in asap.

    v2: The crucial pieces seems to be to clear the force_vdd flag
    uncoditionally, too, in edp_panel_off. Looks like this is left behind
    by the firmware somehow.

    v3: The Apple firmware seems to switch off the panel on it's own, hence
    we still need to keep force_vdd on, but properly clear it when switching
    the panel off.

    Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=45671
    Tested-by: Roberto Romer
    Tested-by: Daniel Wagner
    Tested-by: Keith Packard
    Cc: stable@vger.kernel.org
    Cc: Keith Packard
    Signed-off-by: Daniel Vetter

    Daniel Vetter
     
  • Pull s390 patches from Martin Schwidefsky:
    "Included are bug fixes and a patch to enable system call filtering
    with BPF."

    * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
    s390/compat: fix mmap compat system calls
    s390/compat: fix compat wrappers for process_vm system calls
    s390: do not clobber personality flags in sys_32_personality()
    s390/seccomp: add support for system call filtering using BPF
    s390/sclp_sdias: Add missing break and "fall through"
    s390/mm: remove MAX_PHYSADDR_BITS define

    Linus Torvalds
     
  • Pull drm fixes from Dave Airlie:
    "Radeon and intel fixes mostly, one fix to the mgag200 driver to not
    hang on certain server variants."

    * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (32 commits)
    drm/radeon: fix typo in function header comment
    drm/radeon/kms: implement timestamp userspace query (v2)
    drm/radeon/kms: add MSAA texture support for r600-evergreen
    drm/radeon/kms: reorder code in r600_check_texture_resource
    drm/radeon: fence virtual address and free it once idle v4
    drm/radeon: fix some missing parens in asic macros
    drm/radeon: add some new SI pci ids
    drm/radeon: fix ordering in pll picking on dce4+
    drm/radeon: do not reenable crtc after moving vram start address
    drm/radeon: fix bank tiling parameters on cayman
    drm/radeon: fix bank tiling parameters on evergreen
    drm/radeon: fix bank tiling parameters on SI
    drm/radeon: properly handle crtc powergating
    drm/radeon: properly handle SS overrides on TN (v2)
    drm/radeon/dce4+: set a more reasonable cursor watermark
    drm/radeon: fix handling for ddc type 5 on combios
    drm/mgag200: fix G200ER pll picking algorithm
    drm/edid: Fix potential memory leak in edid_load()
    drm/udl: Use ERR_CAST inlined function instead of ERR_PTR(PTR_ERR(.. [1]
    drm/radeon/kms: allow "invalid" DB formats as a means to disable DB
    ...

    Linus Torvalds
     
  • Commit 7212157267 ("GPIO: gpio-pxa: fix devicetree functions") added an
    "xlate" function pointer to the irq_domain_ops, but this function is nor
    declared or defined anywhere when CONFIG_OF is disabled, causing the
    build error:

    drivers/gpio/gpio-pxa.c:532:11: error: 'irq_domain_xlate_twocell' undeclared here (not in a function)

    Extending the DT-only code section to cover the irq_domain_ops and the
    pxa_gpio_dt_ids solves this problem and makes it clearer which code is
    actually used without DT.

    Signed-off-by: Arnd Bergmann
    Signed-off-by: Linus Torvalds

    Arnd Bergmann
     
  • This fix is a backport from the reworked nouveau driver. It masks off the
    engines we're not expecting to use before attempting a channel kickoff.

    Signed-off-by: Maxim Levitsky
    Signed-off-by: Ben Skeggs

    Maxim Levitsky
     
  • The copy engine exhibits random memory corruption in at least one case, the
    GeForce 320M (nv50, 0xaf) in the MacBookAir3,1.

    This patch omits creating the engine for the specific chipset, falling back
    to M2MF, which kills the symptoms.

    Signed-off-by: Henrik Rydberg
    Signed-off-by: Ben Skeggs

    Henrik Rydberg
     
  • Fixes screen being black after changing performance level.

    Signed-off-by: Maarten Lankhorst
    Cc: stable@vger.kernel.org [3.5+]
    Signed-off-by: Ben Skeggs

    Maarten Lankhorst
     
  • At least partially fixes DP output detection on W530. Not sure if more
    issues remain, or if my adaptor is just behaving weirdly (it does that
    sometimes).

    In any case, this patch is necessary.

    Signed-off-by: Ben Skeggs

    Ben Skeggs
     
  • Signed-off-by: Christoph Bumiller
    Signed-off-by: Ben Skeggs
    Cc: stable@vger.kernel.org

    Christoph Bumiller
     
  • Alex Deucher writes:
    This is the current set of radeon fixes for 3.6. Nothing too major.

    Highlights:
    - various display fixes
    - some SI fixes
    - new SI pci ids
    - major VM fix
    - CS checker support for MSAA

    I've tested on a number of cards across generations and noticed no problems.

    * 'drm-fixes-3.6' of git://people.freedesktop.org/~agd5f/linux:
    drm/radeon: fix typo in function header comment
    drm/radeon/kms: implement timestamp userspace query (v2)
    drm/radeon/kms: add MSAA texture support for r600-evergreen
    drm/radeon/kms: reorder code in r600_check_texture_resource
    drm/radeon: fence virtual address and free it once idle v4
    drm/radeon: fix some missing parens in asic macros
    drm/radeon: add some new SI pci ids
    drm/radeon: fix ordering in pll picking on dce4+
    drm/radeon: do not reenable crtc after moving vram start address
    drm/radeon: fix bank tiling parameters on cayman
    drm/radeon: fix bank tiling parameters on evergreen
    drm/radeon: fix bank tiling parameters on SI
    drm/radeon: properly handle crtc powergating
    drm/radeon: properly handle SS overrides on TN (v2)
    drm/radeon/dce4+: set a more reasonable cursor watermark
    drm/radeon: fix handling for ddc type 5 on combios

    Dave Airlie
     
  • i2c_add_adapter() may do i2c transfers on the bus to detect supported
    devices. Therefore the adapter needs to be all set before adding it. This
    was not the case for the bit-banging fallback, resulting in an oops if the
    device detection GMBUS transfers timed out. Fix the issue by calling
    i2c_add_adapter() only after intel_gpio_setup().

    LKML-Reference:
    Tested-by: Mihai Moldovan
    Signed-off-by: Jani Nikula
    Signed-off-by: Daniel Vetter

    Jani Nikula
     

13 Aug, 2012

13 commits