Commit Graph

520541 Commits

Author SHA1 Message Date
Damien Lespiau 8cfcba415e drm/i915/skl: Add a new line before return
We usually use a new line before those kind of return statements. Also
the various skl_plane_ctl*() functions weren't consistent.

Cc: Chandra Konduru <chandra.konduru@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-05-20 11:25:52 +02:00
Damien Lespiau b250a4c43c drm/i915/skl: Leave a new line between variable declarations and code
Cc: Chandra Konduru <chandra.konduru@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-05-20 11:25:52 +02:00
Jani Nikula 7471bf4e0e drm/i915: clean up dsi pll calculation
Improve readability. No functional changes.

v2: use more rational types (Ville)

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-05-20 11:25:51 +02:00
Jani Nikula 6364e67e4a drm/i915: don't register invalid gmbus pins for skl
Do not expose invalid gmbus pins as i2c devices to userspace.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-05-20 11:25:50 +02:00
Jani Nikula c1bad5b652 drm/i915: don't register invalid gmbus pins for bdw
Do not expose invalid gmbus pins as i2c devices to userspace.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-05-20 11:25:50 +02:00
Jani Nikula dcb58a40ca drm/i915: constify validate_vbt in VBT parsing
Make input and output of validate_vbt const, and fix the fallout. We
shouldn't modify the VBT, so make the compiler help us here.

v2: use pointer arithmetics on void* to simplify (Ville)

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-05-20 11:25:49 +02:00
Jani Nikula e8ef3b4c9d drm/i915: constify find_section in VBT parsing
Make input and output of find_section const, and fix the fallout. We
shouldn't modify the VBT, so make the compiler help us here.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-05-20 11:25:49 +02:00
Ville Syrjälä 4bca26d0a6 drm/i915: Use HOTPLUG_INT_STATUS_G4X on VLV/CHV
Use HOTPLUG_INT_STATUS_G4X instead of HOTPLUG_INT_STATUS_I915 on VLV/CHV
so that we don't confuse the AUX status bits with SDVO status bits.

Avoid pointless log spam as below while handling AUX interrupts:
[drm:intel_hpd_irq_handler] hotplug event received, stat 0x00000040, dig 0x00000000
[drm:intel_hpd_irq_handler] hotplug event received, stat 0x00000040, dig 0x00000000
[drm:intel_hpd_irq_handler] hotplug event received, stat 0x00000040, dig 0x00000000
[drm:intel_hpd_irq_handler] hotplug event received, stat 0x00000040, dig 0x00000000
[drm:intel_hpd_irq_handler] hotplug event received, stat 0x00000040, dig 0x00000000
[drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x71450064

Note that there's no functional issue, it's just that the sdvo bits
overlap with the dp aux bits. Hence every time we receive an aux
interrupt we also think there's an sdvo hpd interrupt, but due to lack
of any sdvo encoders nothing ever happens because of that.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
[danvet: Add Ville's explanation why nothing functional really
changes.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-05-20 11:25:48 +02:00
Ville Syrjälä 8fc3b42ef3 drm/i915: Remove excess inline keywords
Remove some inline keywords. One of the functions has clearly outgrown
it anyway, so let's just leave it to the compiler.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-05-20 11:25:48 +02:00
Mika Kuoppala f3e06f1156 drm/i915/gtt: Fix the boundary check for vm area
The check for start + length >= total_vm_size is
wrong since start + length can be exactly the size of
the vm.

Fix the check to allow allocation to boundary.

Fixes a regression in commit 4dd738e9cd
("drm/i915: Fix 32b overflow check in gen8_ppgtt_alloc_page_directories")

Testcase: igt/gem_evict_everything/swapping-interruptible
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=90399
Tested-by: Lu Hua <huax.lu@intel.com>
Cc: Chris Wilson <chris@chris.wilson.co.uk>
Cc: Dave Gordon <david.s.gordon@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Michel Thierry <michel.thierry@intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-05-20 11:25:47 +02:00
Chandra Konduru af99ceda2d drm/i915: Make scaler_id check in check_crtc_state work for all gens
During check_crtc_state, scaler_id mispatch is being reported for HSW.
This is applicable for skl+ and not for HSW. It is introduced by
commit id:
    commit a1b2278e4d
    Author: Chandra Konduru <chandra.konduru@intel.com>
    Date:   Tue Apr 7 15:28:45 2015 -0700

        drm/i915: skylake panel fitting using shared scalers

This patch will make sure that we leave scaler_id as 0 for platforms
before skl and set for skl+ only. This way scaler_id check during
check_crtc_state will pass for both prior to skl and skl+ platforms.

v2:
-Leave scaler_id as 0 for gen < 9 (Daniel)

Signed-off-by: Chandra Konduru <chandra.konduru@intel.com>
References: http://lists.freedesktop.org/archives/intel-gfx/2015-May/065741.html
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-05-20 11:25:46 +02:00
Chris Wilson b2cfe0ab63 drm/i915: Fix race on unreferencing the wrong mmio-flip-request
As we perform the mmio-flip without any locking and then try to acquire
the struct_mutex prior to dereferencing the request, it is possible for
userspace to queue a new pageflip before the worker can finish clearing
the old state - and then it will clear the new flip request. The result
is that the new flip could be completed before the GPU has finished
rendering.

The bugs stems from removing the seqno checking in
commit 536f5b5e86
Author: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Date:   Thu Nov 6 11:03:40 2014 +0200

    drm/i915: Make mmio flip wait for seqno in the work function

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-05-20 11:25:46 +02:00
Chris Wilson d94b5030d2 drm/i915: Ensure cache flushes prior to doing CS flips
Synchronising to an object active on the same ring is a no-op, for the
benefit of execbuffer scheduler. However, for CS flips this means that
we can forgo checking whether the last write request of the object is
actually queued and more importantly whether the cache flush for the
write was emitted.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-05-20 11:25:45 +02:00
Chris Wilson 2e2f351dbf drm/i915: Remove domain flubbing from i915_gem_object_finish_gpu()
We no longer interpolate domains in the same manner, and even if we did,
we should trust setting either of the other write domains would trigger
an invalidation rather than force it. Remove the tweaking of the
read_domains since it serves no purpose and use
i915_gem_object_wait_rendering() directly.

Note that this goes back to

commit a8198eea15
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Wed Apr 13 22:04:09 2011 +0100

    drm/i915: Introduce i915_gem_object_finish_gpu()

and gpu domain tracking died in

commit cc889e0f6c
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Wed Jun 13 20:45:19 2012 +0200

    drm/i915: disable flushing_list/gpu_write_list

which is more than 1 year older.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
[danvet: Add notes with information dug out of git history.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-05-20 11:25:45 +02:00
Peter Antoine 779949f4b1 drm/i915: Warn when execlists changes context without IRQs
If an batch ends while the IRQs are not turned on the notification can
go missing and the GPU can hang. So generate a warning in this case.

Signed-off-by: Peter Antoine <peter.antoine@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-05-20 11:25:44 +02:00
Chandra Konduru 2614f17d2d drm/i915: call intel_tile_height with correct parameter
In skylake update plane functions, intel_tile_height() is called with
bits_per_pixel instead of pixel_format. Correcting it.

Signed-off-by: Chandra Konduru <chandra.konduru@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
[danvet: Fixup alignment.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-05-20 11:25:43 +02:00
Tvrtko Ursulin 2eb49a69b4 drm/i915: Remove duplicated intel_tile_height declaration
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-05-20 11:25:43 +02:00
Deepak S 5b7c91b78b drm/i915/chv: Set min freq to efficient frequency on chv
After feedback from the hardware team, now we set the GPU min/idel freq to RPe.
Punit is expecting us to operate GPU between Rpe & Rp0. If we drop the
frequency to RPn, punit is failing to change the vgg input voltage to
minimum :(

Since Punit validates the rps range [RPe, RP0]. This patch
removes unused cherryview_rps_min_freq function.

v2: Change commit message

v3: set min_freq before idle_freq (chris)

v4: Squash 'Remove unused rps min function' patch

Signed-off-by: Deepak S <deepak.s@linux.intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-05-20 11:25:42 +02:00
Deepak S 4a7624f664 drm/i915/chv: Extend set idle rps wa to chv
It is observed on BSW that requesting a new frequency from Punit
does nothing when the GPU is in rc6, and if we let GPU enter rc6
with a high frequency, Vnn remains slightly higher than at minimum
frequency. Extending vlv_set_rps_idle() workaround on CHV/BSW.

v2: Update commit msg (Ville)

suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Deepak S <deepak.s@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-05-20 11:25:42 +02:00
Deepak S a7f6e23115 drm/i915/vlv: Remove wait for for punit to updates freq.
When GPU is idle on VLV, Request freq to punit should be good enough to
get the voltage back to VNN. Also, make sure gfx clock force applies
before requesting the freq fot vlv.

v2: Do forcewake before setting idle frequency (ville)
    Update function comments to match the code (Deepak)

v3: Fix get/put across idle frequency Request. (Ville)

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=75244
suggested-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Deepak S <deepak.s@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-05-20 11:25:41 +02:00
Damien Lespiau b6e742f652 drm/i915: Be optimistic about future display engines having 7 WM levels
As we're doing throughout the code, being optimistic that platform n + 1
will mostly reuse the same things as platform n allows us to minimize
the enabling work needed.

This time, it's about the number of WM levels.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-05-20 11:25:40 +02:00
Maarten Lankhorst 49d6fa210e drm/i915: Always keep crtc_state->active in sync with enable
With the recent modeset internal rework, we wind up setting crtc_state->enable
to false, but leave crtc_state->active as true following a
drmModeSetCrtc(fb=0), which is incorrect.  This mismatch gets caught by
drm_atomic_crtc_check() and causes subsequent atomic operations (such as plane
updates while the CRTC is disabled) to fail.

Bisect points to

        commit dad9a7d6d96630182fb52aae7c3856e9e7285e13
        Author: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
        Date:   Tue Apr 21 17:13:19 2015 +0300

            drm/i915: Use atomic helpers for computing changed flags

as the commit that actually triggers the regression.

The difference compared to (which this patch reverts)

commit 90d469067d
Author: Matt Roper <matthew.d.roper@intel.com>
Date:   Thu May 7 14:31:28 2015 -0700

    drm/i915: Set crtc_state->active to false when CRTC is disabled (v2)

is that we know keep state->active/enable in sync for all legacy
modeset paths, as it should be.

Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reported-and-Tested-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
[danvet: Directly squash in the revert and augment the commit
message.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

Revert "drm/i915: Set crtc_state->active to false when CRTC is disabled (v2)"

This reverts commit 90d469067d.
2015-05-20 11:25:40 +02:00
Chandra Konduru 2cd601c620 drm/i915: Adding dbuf support for skl nv12 format.
Skylake nv12 format requires dbuf (aka. ddb) calculations
and programming for each of y and uv sub-planes. Made minor
changes to reuse current dbuf calculations and programming
for uv plane. i.e., with this change, existing computation
is used for either packed format or uv portion of nv12
depending on incoming format. Added new code for dbuf
computation and programming for y plane.

This patch is a pre-requisite for adding NV12 format support.
Actual nv12 support is coming in later patches.

Signed-off-by: Chandra Konduru <chandra.konduru@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-05-20 11:25:39 +02:00
Masanari Iida 7e35ab88d8 drm/i915: Fix typo in intel_runtime_pm.c
This patch fix spelling typo in intel_runtime_pm.c

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-05-20 11:25:39 +02:00
Daniel Vetter 5e024f31be drm/i915: Remove unused variable from i915_gem_mmap_gtt
Lost in

commit c5ad54cf7d
Author: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Date:   Wed May 6 14:36:09 2015 +0300

    drm/i915: Use partial view in mmap fault handler

Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-05-20 11:25:38 +02:00
Bjørn Mork 5fb73bc2c8 thinkpad_acpi: Revert unintentional device attribute renaming
The conversion to DEVICE_ATTR_* macros failed to fixup a few cases where
the old attribute names didn't match the show/store function names.
Instead of renaming the functions, the attributes were renamed. This
caused an unintentional API change.  The hwmon required 'name' attribute
were among the renamed attribute, causing libsensors to fail to detect
the hwmon device at all.

Fix by using the DEVICE_ATTR macro for these attributes, allowing the
show/store functions to keep their system specific prefixes.

Fixes: b4dd04ac6e ("thinkpad_acpi: use DEVICE_ATTR_* macros")
Cc: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-05-20 02:18:12 -07:00
Dave Airlie bdcddf95e8 Linux 4.1-rc4
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Backmerge v4.1-rc4 into into drm-next

We picked up a silent conflict in amdkfd with drm-fixes and drm-next,
backmerge v4.1-rc5 and fix the conflicts

Signed-off-by: Dave Airlie <airlied@redhat.com>

Conflicts:
	drivers/gpu/drm/drm_irq.c
2015-05-20 16:23:53 +10:00
Takashi Iwai 219f47e4f9 ALSA: hda - Disable widget power-saving for ALC292 & co
We've got reports that ALC3226 (a Dell variant of ALC292) gives click
noises at transition from D3 to D0 when the widget power-saving is
enabled.  Further debugging session showed that avoiding it isn't
trivial, unfortunately, since paths are basically activated
dynamically while the pins have been already enabled.

This patch disables the widget power-saving for such codecs.

Reported-by: Jonathan McDowell <noodles@earth.li>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-05-20 06:56:23 +02:00
Takashi Iwai 48f4b3a2ec ALSA: hda - Reduce verbs by node power-saves
The widget (node) power-saves restore the widget states at each
transition from D3 to D0 on each node.  This was added in the commit
[d545a57c5f84:ALSA: hda - Sync node attributes at resume from widget
power saving].  However, the test was rater false-positive; this
wasn't needed for any codecs.

Since the resync may take significant number of additional verbs to be
executed, it's better to reduce it.  Let's disable it for now again.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-05-20 06:49:37 +02:00
Arnd Bergmann 976fa9a3ac ALSA: sound/atmel/ac97c.c: remove unused variable
The recently added DT support for the ac97 driver is causing
a gcc warning:

sound/atmel/ac97c.c: In function 'atmel_ac97c_probe_dt':
sound/atmel/ac97c.c:919:29: warning: unused variable 'match' [-Wunused-variable]
  const struct of_device_id *match;

The variable is clearly unused, so we can remove it.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Alexander Stein <alexanders83@web.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-05-20 06:18:25 +02:00
Filipe Manana a96295965b Btrfs: fix racy system chunk allocation when setting block group ro
If while setting a block group read-only we end up allocating a system
chunk, through check_system_chunk(), we were not doing it while holding
the chunk mutex which is a problem if a concurrent chunk allocation is
happening, through do_chunk_alloc(), as it means both block groups can
end up using the same logical addresses and physical regions in the
device(s). So make sure we hold the chunk mutex.

Cc: stable@vger.kernel.org  # 4.0+
Fixes: 2f0810880f ("btrfs: delete chunk allocation attemp when
                      setting block group ro")

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>
2015-05-19 18:04:17 -07:00
Mark Fasheh 2c2ed5aa01 btrfs: clear 'ret' in btrfs_check_shared() loop
btrfs_check_shared() is leaking a return value of '1' from
find_parent_nodes(). As a result, callers (in this case, extent_fiemap())
are told extents are shared when they are not. This in turn broke fiemap on
btrfs for kernels v3.18 and up.

The fix is simple - we just have to clear 'ret' after we are done processing
the results of find_parent_nodes().

It wasn't clear to me at first what was happening with return values in
btrfs_check_shared() and find_parent_nodes() - thanks to Josef for the help
on irc. I added documentation to both functions to make things more clear
for the next hacker who might come across them.

If we could queue this up for -stable too that would be great.

Signed-off-by: Mark Fasheh <mfasheh@suse.de>
Reviewed-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
2015-05-19 18:04:17 -07:00
Dave Airlie f7c125a198 Merge branch 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-fixes
Summary:
- Use generic function to get buffer count instead of specific one.
  In case of Exynos DRM, There was a special case which decides pixel
  format of a given buffer according to planer types, which is NV12M and NV12.
  However, NV12M doesn't exist in drm fourcc so it removes
  exynos_drm_format_num_buffers() specific to Exynos DRM and use a generic function,
  drm_format_num_planes() instead.
- Allow mixer driver to support NV21 format for Video processor.
  This format was already supported but we just missed DRM_FORMAT_NV21 case
  so this patch considers the case so that Mixer driver can handle it correctly.
- Add regression fix and some code cleanups.

* 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
  drm/exynos: dp: Lower level of EDID read success message
  drm/exynos: cleanup exynos_drm_plane
  drm/exynos: 'win' is always unsigned
  drm/exynos: mixer: don't dump registers under spinlock
  drm/exynos: Consolidate return statements in fimd_bind()
  drm/exynos: Constify exynos_drm_crtc_ops
  drm/exynos: Fix build breakage on !DRM_EXYNOS_FIMD
  drm/exynos: mixer: Constify platform_device_id
  drm/exynos: mixer: cleanup pixelformat handling
  drm/exynos: mixer: also allow NV21 for the video processor
  drm/exynos: mixer: remove buffer count handling in vp_video_buffer()
  drm/exynos: plane: honor buffer offset for dma_addr
  drm/exynos: fb: use drm_format_num_planes to get buffer count
2015-05-20 09:22:00 +10:00
Dave Airlie 91d9f9856f Merge tag 'drm-amdkfd-next-2015-05-19' of git://people.freedesktop.org/~gabbayo/linux into drm-next
- Add the interrupts & events modules, including new IOCTLs to create and wait
  on events. The HSA RT open source stack is mainly using events to know when
  a dispatched work has been completed. In addition, this module is
  a pre-requisite for the next module I'm going to upstream - debugger support

  This module also handles H/W exceptions, such as memory exception received
  through the IOMMUv2 H/W and Bad Opcode exception receieved from the GPU.

- Adding a new kernel module parameter to let the user decide whether he wants
  to receive a SIGTERM when a memory exception occurs inside the GPU kernel and
  the HSA application doesn't wait on an appropriate event, or if he just want
  to receive notification about this event in dmesg. The default is the latter.

- Additional improvements for SDMA code

- Update my email address in Maintainers file.

* tag 'drm-amdkfd-next-2015-05-19' of git://people.freedesktop.org/~gabbayo/linux:
  drm/amdkfd: change driver version to 0.7.2
  drm/amdkfd: Implement events IOCTLs
  drm/amdkfd: Add module parameter of send_sigterm
  drm/amdkfd: Add bad opcode exception handling
  drm/amdkfd: Add memory exception handling
  drm/amdkfd: Add the events module
  drm/amdkfd: add events IOCTL set definitions
  drm/amdkfd: Add interrupt handling module
  drm/radeon: Add init interrupt kfd->kgd interface
  MAINTAINERS: update amdkfd Oded's email address
  drm/amdkfd: make the sdma vm init to be asic specific
  drm/amdkfd: Use new struct for asic specific ops
  drm/amdkfd: reformat some debug prints
  drm/amdkfd: Remove unessary void pointer cast
2015-05-20 09:20:48 +10:00
Dave Airlie 9c37bf2db0 Merge tag 'topic/drm-misc-2015-05-19' of git://anongit.freedesktop.org/drm-intel into drm-next
Scattering of random drm core patches. Bunch of atomic prep work too, but
the final bits for blob properties, atomic modesets and lifting the
experimental tag on the atomic ioctl are still blocked on Daniel Stone
finalizing and testing the weston support for it. I hope that we can get
it all ready for 4.2 though.

* tag 'topic/drm-misc-2015-05-19' of git://anongit.freedesktop.org/drm-intel: (22 commits)
  drm/atomic: Allow drivers to subclass drm_atomic_state, v3
  drm/atomic: remove duplicated assignment of old_plane_state
  drm/dp: Fix comment in DP helper
  drm/atomic: add drm_atomic_get_existing_*_state helpers
  drm/core: get rid of -Iinclude/drm
  drm/i915: get rid of -Iinclude/drm
  drm/atomic-helpers: Export drm_atomic_helper_update_legacy_modeset_state
  drm/atomic-helpers: Update vblank timestamping constants
  drm/sysfs: remove unnecessary connector type checks
  drm/sysfs: split DVI-I and TV-out attributes
  drm/sysfs: make optional attribute groups per connector type
  drm/sysfs: add a helper for extracting connector type from kobject
  drm/edid: Add CEA modes before inferred modes
  drm/prime: Allow internal imports without import_sg_table
  drm: Add reference counting to blob properties
  drm: Introduce blob_lock
  drm: Introduce helper for replacing blob properties
  drm: Don't leak path blob property when updating
  drm/atomic: Don't open-code CRTC state destroy
  drm/edid: Add DMT modes with ID > 0x50
  ...
2015-05-20 09:19:58 +10:00
Nicholas Bellinger ee7619f2eb target: Drop signal_pending checks after interruptible lock acquire
Once upon a time, iscsit_get_tpg() was using an un-interruptible
lock.  The signal_pending() usage was a check to allow userspace
to break out of the operation with SIGINT.

AFAICT, there's no reason why this is necessary anymore, and as
reported by Alexey can be potentially dangerous.  Also, go ahead
and drop the other two problematic cases within iscsit_access_np()
and sbc_compare_and_write() as well.

Found by Linux Driver Verification project (linuxtesting.org).

Reported-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-05-19 15:18:20 -07:00
David S. Miller 892bd6291a This has just a single fix, for a WEP tailroom check
problem that leads to dropped frames.
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Merge tag 'mac80211-for-davem-2015-05-19' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
This has just a single fix, for a WEP tailroom check
problem that leads to dropped frames.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-19 16:44:25 -04:00
Yuchung Cheng b7b0ed910c tcp: don't over-send F-RTO probes
After sending the new data packets to probe (step 2), F-RTO may
incorrectly send more probes if the next ACK advances SND_UNA and
does not sack new packet. However F-RTO RFC 5682 probes at most
once. This bug may cause sender to always send new data instead of
repairing holes, inducing longer HoL blocking on the receiver for
the application.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-19 16:36:57 -04:00
Yuchung Cheng da34ac7626 tcp: only undo on partial ACKs in CA_Loss
Undo based on TCP timestamps should only happen on ACKs that advance
SND_UNA, according to the Eifel algorithm in RFC 3522:

Section 3.2:

  (4) If the value of the Timestamp Echo Reply field of the
      acceptable ACK's Timestamps option is smaller than the
      value of RetransmitTS, then proceed to step (5),

Section Terminology:
   We use the term 'acceptable ACK' as defined in [RFC793].  That is an
   ACK that acknowledges previously unacknowledged data.

This is because upon receiving an out-of-order packet, the receiver
returns the last timestamp that advances RCV_NXT, not the current
timestamp of the packet in the DUPACK. Without checking the flag,
the DUPACK will cause tcp_packet_delayed() to return true and
tcp_try_undo_loss() will revert cwnd reduction.

Note that we check the condition in CA_Recovery already by only
calling tcp_try_undo_partial() if FLAG_SND_UNA_ADVANCED is set or
tcp_try_undo_recovery() if snd_una crosses high_seq.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-19 16:36:57 -04:00
Henning Rogge 33b4b015e1 net/ipv6/udp: Fix ipv6 multicast socket filter regression
Commit <5cf3d46192fc> ("udp: Simplify__udp*_lib_mcast_deliver")
simplified the filter for incoming IPv6 multicast but removed
the check of the local socket address and the UDP destination
address.

This patch restores the filter to prevent sockets bound to a IPv6
multicast IP to receive other UDP traffic link unicast.

Signed-off-by: Henning Rogge <hrogge@gmail.com>
Fixes: 5cf3d46192 ("udp: Simplify__udp*_lib_mcast_deliver")
Cc: "David S. Miller" <davem@davemloft.net>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-19 16:34:43 -04:00
David Vrabel 77bb3dfdc0 xen/events: don't bind non-percpu VIRQs with percpu chip
A non-percpu VIRQ (e.g., VIRQ_CONSOLE) may be freed on a different
VCPU than it is bound to.  This can result in a race between
handle_percpu_irq() and removing the action in __free_irq() because
handle_percpu_irq() does not take desc->lock.  The interrupt handler
sees a NULL action and oopses.

Only use the percpu chip/handler for per-CPU VIRQs (like VIRQ_TIMER).

  # cat /proc/interrupts | grep virq
   40:      87246          0  xen-percpu-virq      timer0
   44:          0          0  xen-percpu-virq      debug0
   47:          0      20995  xen-percpu-virq      timer1
   51:          0          0  xen-percpu-virq      debug1
   69:          0          0   xen-dyn-virq      xen-pcpu
   74:          0          0   xen-dyn-virq      mce
   75:         29          0   xen-dyn-virq      hvc_console

Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Cc: <stable@vger.kernel.org>
2015-05-19 19:55:36 +01:00
Linus Torvalds 1113cdfe7d NFS client bugfixes for Linux 4.1
Highlights include:
 
 - Fix a Linux-4.1 regression affecting stat()
 - Take an extra reference to fl->fl_file when running a setlk
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Merge tag 'nfs-for-4.1-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull two NFS client bugfixes from Trond Myklebust:
 "Highlights include:

   - fix a Linux-4.1 regression affecting stat()

   - take an extra reference to fl->fl_file when running a setlk"

* tag 'nfs-for-4.1-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  nfs: take extra reference to fl->fl_file when running a setlk
  nfs: stat(2) fails during cthon04 basic test5 on NFSv4.0
2015-05-19 11:20:48 -07:00
Linus Torvalds 416716ed39 powerpc fixes for 4.1 # 3
- THP/hugetlb fixes from Aneesh.
 - MCE fix from Daniel.
 - TOC fix from Anton.
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Merge tag 'powerpc-4.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux

Pull powerpc fixes from Michael Ellerman:

 - THP/hugetlb fixes from Aneesh.

 - MCE fix from Daniel.

 - TOC fix from Anton.

* tag 'powerpc-4.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux:
  powerpc: Align TOC to 256 bytes
  powerpc/mce: fix off by one errors in mce event handling
  powerpc/mm: Return NULL for not present hugetlb page
  powerpc/thp: Serialize pmd clear against a linux page table walk.
2015-05-19 11:19:49 -07:00
Linus Torvalds 68465bb08c pwm: Fixes for v4.1-rc5
A single fix to make the Pistachio driver respect the limits imposed by
 hardware.
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Merge tag 'pwm/for-4.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

Pull pwm fix from Thierry Reding:
 "A single fix to make the Pistachio driver respect the limits imposed
  by hardware"

* tag 'pwm/for-4.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
  pwm: img: Impose upper and lower timebase steps value
2015-05-19 11:18:14 -07:00
Michal Hocko 1173ff09b9 watchdog: fix double lock in watchdog_nmi_enable_all
Commit ab992dc38f ("watchdog: Fix merge 'conflict'") has introduced an
obvious deadlock because of a typo.  watchdog_proc_mutex should be
unlocked on exit.

Thanks to Miroslav Benes who was staring at the code with me and noticed
this.

Signed-off-by: Michal Hocko <mhocko@suse.cz>
Duh-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-05-19 10:57:03 -07:00
Eric Dumazet b5d721d761 inet: properly align icsk_ca_priv
tcp_illinois and upcoming tcp_cdg require 64bit alignment of
icsk_ca_priv

x86 does not care, but other architectures might.

Fixes: 05cbc0db03 ("ipv4: Create probe timer for tcp PMTU as per RFC4821")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Fan Du <fan.du@intel.com>
Acked-by: Fan Du <fan.du@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-19 11:08:00 -04:00
Naidu Tellapati 1e70897d0e pwm: img: Impose upper and lower timebase steps value
The PWM hardware on Pistachio platform has a maximum timebase steps
value to 255. To fix it, let's introduce a compatible-specific
data structure to contain the SoC-specific details and use it to
specify a maximum timebase.

Also, let's limit the minimum timebase to 16 steps, to allow a sane
range of duty cycle steps.

Fixes: 277bb6a29e ("pwm: Imagination Technologies PWM DAC driver")
Signed-off-by: Naidu Tellapati <naidu.tellapati@imgtec.com>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@imgtec.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2015-05-19 16:07:40 +02:00
Shawn Guo e46b5a6470 ARM: dts: fix imx27 dtb build rule
The i.MX27 dtb build should be controlled by CONFIG_SOC_IMX27 rather
than CONFIG_SOC_IMX31.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Fixes: cb612390e5 ("ARM: dts: Only build dtb if associated Arch and/or SoC is enabled")
Cc: <stable@vger.kernel.org>
2015-05-19 22:06:41 +08:00
Krzysztof Kozlowski b0f155ada4 drm/exynos: dp: Lower level of EDID read success message
Don't pollute the dmesg with EDID read success message as an error.
Printing as debug should be fine.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-05-19 22:50:55 +09:00
Tobias Jakobi be083a002f drm/exynos: cleanup exynos_drm_plane
Remove the unused fields of struct exynos_drm_plane.

v2: Remove index_color as well, also unused (thanks Joonyoung).

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-05-19 22:50:54 +09:00