Daniel Vetter [Tue, 2 Feb 2010 16:08:37 +0000 (17:08 +0100)]
drm/i915: only one interrupt per batchbuffer is not enough!
Previously I thought that one interrupt per batchbuffer should be
enough. Now tedious benchmarking showed this to be wrong.
Therefore track whether any commands have been isssued with a future
seqno (like pipelined fencing changes or flushes). If this is the case
emit a request before issueing the batchbuffer.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Daniel Vetter [Thu, 11 Feb 2010 21:19:40 +0000 (22:19 +0100)]
drm/i915: move flushing list processing to i915_gem_flush
Now that we can move objects to the active list without already having
emitted a request, move the flushing list handling into i915_gem_flush.
This makes more sense and allows to drop a few i915_add_request calls
that are not strictly necessary.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Daniel Vetter [Thu, 11 Feb 2010 21:13:59 +0000 (22:13 +0100)]
drm/i915: allow lazy emitting of requests
Sometimes (like when flushing in preparation of batchbuffer execution)
we know that we'll emit a request but haven't yet done so. Allow this
case by simply taking the next seqno by default. Ensure that a request
is eventually emitted before waiting for an request by issuing it
in i915_wait_request iff this is not yet done.
Also replace one open-coded version of i915_gem_object_wait_rendering,
to prevent future code-diversion.
Chris Wilson asked me to explain and clarify what this patch does and why.
Here it goes:
Old way of moving objects onto the active list and associating them with a
reques:
1. i915_add_request + store the returned seqno somewhere
2. i915_gem_object_move_to_active (with the stored seqno as parameter)
For the current users, this is all fine. But I'd like to associate objects
(and fence regs) with the batchbuffer request deep down in the execbuf
call-chain. I thought about three ways of implementing this.
a) Don't care, just emit request when we need a new seqno. When heavily
pipelining fence reg changes, this would have caused tons of superflous
request (and corresponding irqs).
b) Thread all changed fences, objects, whatever through the execbuf-maze,
so that when we emit a request, we can store the new seqno at all the right
places.
c) Kill that seqno-threading-around business by simply storing the next
seqno, i.e. allow 2. to be done before 1. in the above sequence.
I've decided to implement c) (in this patch). The following patches are
just fall-out that resulted from this small conceptual change.
* We can handle the flushing list processing where we actually emit a flush
(i915_gem_flush and i915_retire_commands) instead of in i915_add_request.
The code makes IMHO more sense this way (and i915_add_request looses the
flush_domains parameter, obviously).
* We can avoid emitting unnecessary requests. IMHO there's no point in
emitting more than one request per batchbuffer (with or without an
corresponding irq).
* By enforcing 2. before 1. ordering in the above sequence the seqno
argument of i915_gem_object_move_to_active is redundant and can be
dropped.
v2: Now i915_wait_request issues request if it is not yet emitted.
Also introduce i915_gem_next_request_seqno(dev) just in case we ever
need to do some prep work before using a new seqno.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
[ickle: Keep i915_gem_object_set_to_display_plane() uninterruptible.]
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Jesse Barnes [Fri, 13 Aug 2010 22:50:28 +0000 (15:50 -0700)]
drm/i915: add MMIO debug output
Useful for capturing register read/write traces to send to the hw guys.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Wed, 25 Aug 2010 09:05:17 +0000 (10:05 +0100)]
drm/i915/sdvo: Preserve pixel-multiplier
Store the pixel-multiplier on the adjusted mode and avoid modifying the
requested mode.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Sun, 8 Aug 2010 11:34:44 +0000 (12:34 +0100)]
drm/i915: Sanity check user framebuffer parameters on creation
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Sat, 4 Sep 2010 23:52:34 +0000 (00:52 +0100)]
drm/i915/tv: Mark the format names as constant and so avoid the memleak
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Sat, 4 Sep 2010 23:44:20 +0000 (00:44 +0100)]
drm/i915/tv: Poll for DAC state change
Instead of sleeping for an arbitrary length of time (the documentation
fails to specify how long to wait for) wait until the load detection has
changed state (or at most the 20ms as before).
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Sat, 4 Sep 2010 23:43:42 +0000 (00:43 +0100)]
drm/i915/tv: Preserve reserved DAC bits during mode-setting
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Sitsofe Wheeler [Tue, 24 Aug 2010 15:56:16 +0000 (16:56 +0100)]
drm/i915: Revert extra intel_wait_for_vblank to prevent stalls.
With the extra intel_wait_for_vblank added in commit
9d0498a2bf7455159b317f19531a3e5db2ecc9c4 periodic stalls were being
triggered (which were detected by i915_hangcheck_elapsed). Partially
revert this change for now.
Signed-off-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Thu, 2 Sep 2010 16:59:39 +0000 (17:59 +0100)]
drm/i915: Ironlake page-flipping is per-plane not per-pipe
Fix a minor confusion between intel_page_flip_finish(pipe) and
intel_page_flip_finish_plane(plane) -- should have no effect as
currently we map pipe 0 to plane 0 (and pipe 1 to plane 1).
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Sun, 22 Aug 2010 17:21:42 +0000 (18:21 +0100)]
drm/i915: Addin-offset is an unreliable indicator of LVDS presence (v2)
My Samsung N210 has a VBT with DEVICE_TYPE_INT_LFP with a zero
addin-offset. With the check in place, the panel was declared absent.
v2: Only trust BIOS writers that have graduated to writing OpRegions.
(We are all doomed.)
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Zhao Yakui <yakui.zhao@intel.com>
Cc: Adam Jackson <ajax@redhat.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Chris Wilson [Thu, 19 Aug 2010 15:09:23 +0000 (16:09 +0100)]
drm/i915: Use the VBT from OpRegion when available (v3)
It is recommended that we use the Video BIOS tables that were copied
into the OpRegion during POST when initialising the driver. This saves
us from having to furtle around inside the ROM ourselves and possibly
allows the vBIOS to adjust the tables prior to initialisation.
On some systems, such as the Samsung N210, there is no accessible VBIOS
and the only means of finding the VBT is through the OpRegion.
v2: Rearrange the code so that ASLE is enabled along with ACPI
v3: Enable OpRegion parsing even without ACPI
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Garrett <mjg@redhat.com>
Chris Wilson [Tue, 24 Aug 2010 08:02:58 +0000 (09:02 +0100)]
drm/i915: Rename i915_opregion.c to intel_opregion.c
It's part of the generic Intel driver infrastructure so rename it in
prepreparation for using it for VBT.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Mon, 9 Aug 2010 13:50:53 +0000 (14:50 +0100)]
drm/i915/crt: Flush register prior to waiting for vblank.
If we don't flush the write then we can not be sure that the border
colour will have taken effect by the time we try to read it back.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Sat, 7 Aug 2010 11:16:25 +0000 (12:16 +0100)]
drm/i915: Avoid using msleep under kdb and wait_for()
wait_for() uses msleep() to yield the cpu whilst spinning waiting for a
register to change. kdb asserts that mode changes are atomic and so
prohibits msleep. The alternative would be to use mdelay or to simply
probe the register more often instead of busy waiting.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Mon, 23 Aug 2010 16:43:35 +0000 (17:43 +0100)]
drm/i915: Drop the msleep parameter to wait_for()
Jesse's feedback from using the wait_for() macro was that the msleep
argument was that it was superfluous and made the macro more difficult
to use and to read. As the actually amount of time to sleep is not
critical, the crucial part is to sleep and let the processor schedule
something else whilst we wait for the event, replace the argument with a
hardcoded value.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Daniel Vetter [Fri, 20 Aug 2010 22:25:16 +0000 (00:25 +0200)]
drm/i915: unload: fix retire_work races
ums-gem code correctly cancels the retire work (at lastclose time),
kms does not do so. Fix this by canceling the work right after ideling
the gpu.
While staring at the code I noticed that the work function is not
static. Fix this, too.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Daniel Vetter [Fri, 20 Aug 2010 19:23:20 +0000 (21:23 +0200)]
drm/i915: unload: ensure that gem is idle
When the module unloads, all users should be gone, hence all bo references
held by userspace, too. This should already result in an idle ringbuffer.
Still, be paranoid and idle gem before starting the unload dance.
Also kill the call to i915_gem_lastclose under an if (kms), it's a noop
for kms.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Daniel Vetter [Fri, 20 Aug 2010 20:26:30 +0000 (22:26 +0200)]
drm/i915: unload: fix unpin_work related races
Kill any outstanding unpin_work when destroying the corresponding
crtc. Then flush the workqueue before the gem teardown, in case
any unpin work is still outstanding.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Daniel Vetter [Fri, 20 Aug 2010 19:40:52 +0000 (21:40 +0200)]
drm/i915: unload: fix idle_timer/idle_work races
idle_work wasn't cleaned up at all. It takes &dev->struct_mutex, but
accesss the mode_config crtc list (without any other locking!). Hence
this work needs to be canceled before calling drm_mode_config_cleanup.
As evidenced by the kernel's object debuggin code, the current code
also cleans up the timer to early (it gets rearmed). So move it right
before the final cleanup (it seems to work).
Also unconditionally set up the idle_timer in intel_increase_pllclock.
If we're unlucky the timer might fire right away, rendering the call
in the modesetting teardown pointless.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Daniel Vetter [Fri, 20 Aug 2010 19:25:11 +0000 (21:25 +0200)]
drm/i915: unload: don't leak error state
With kms, interrupts now get disabled in the modesetting cleanup. So
free the error state afterwards, it currently gets allocated in
the interrupt handler.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Daniel Vetter [Fri, 20 Aug 2010 16:26:46 +0000 (18:26 +0200)]
drm/i915: unload: fix hotplug_work races
hotplug_work is queued by the hotplug interrupt and only either emits
a hotplug uevent or queues a crt poll slow-work. No other locking. So
it's safe to cancel this work _after_ irq's have been turned off. But
before the modesetting objects are destroyed because the hotplug
function accesses them (without locking).
The current code (for kms) only switches irqs off after modesetting
teardown, hence move the irq teardown into the modeset cleanup right
before the crtc cleanup.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Daniel Vetter [Fri, 20 Aug 2010 16:18:48 +0000 (18:18 +0200)]
drm/i915: unload: fix error_work races
This is the first patch to clean up module unload races due to
outstanding timers/work. Preparatory step: Thou shalt not destroy
the workqueue when new work might still get enqued.
Now error_work gets queued by the hangcheck timer and only (atomically)
reads the chip wedged status. So cancel it right after the hangcheck
timer is killed. But the hangcheck is armed by interrupts, so move
everything after irqs are disabled.
Also change a del_timer to a del_timer_sync in the ums gem code, the
hangcheck timer is self-rearming.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Daniel Vetter [Fri, 20 Aug 2010 16:08:28 +0000 (18:08 +0200)]
drm/i915: unload: fix intel dp encoder cleanup
struct intel_dp contains both struct intel_encoder at the beginning (as
it's base-class) and an i2c adapater. When initializing, the i2c adapter
gets assigned
intel_encoder->ddc_adaptor = &intel_dp->adapter
and the generic intel_encode_destroy happily calls kfree on this pointer.
Ouch. Fix this by using a dp specific cleanup function.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Wed, 8 Sep 2010 09:13:14 +0000 (10:13 +0100)]
Merge remote branch 'airlied/drm-core-next' into HEAD
Chris Wilson [Wed, 8 Sep 2010 08:14:08 +0000 (09:14 +0100)]
Revert "drm/i915: Warn if we run out of FIFO space for a mode"
This reverts commit
b9421ae8f30958deea98d71477b4a77a066856b4.
This warning was so prelevant, even for apparently working machines,
that it was just causing fear, anxiety and panic.
The root cause still remains, so we will add some better debugging when
we focus on fixing it.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=17021
Reported-by: Maciej Rutecki <maciej.rutecki@gmail.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Tue, 7 Sep 2010 22:39:28 +0000 (23:39 +0100)]
Revert "drm/i915: Allow LVDS on pipe A on gen4+"
This reverts commit
0f3ee801b332d6ff22285386675fe5aaedf035c3.
Enabling LVDS on pipe A was causing excessive wakeups on otherwise idle
systems due to i915 interrupts. So restrict the LVDS to pipe B once more,
whilst the issue is properly diagnosed.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=16307
Reported-and-tested-by: Enrico Bandiello <enban@postal.uv.es>
Poked-by: Florian Mickler <florian@mickler.org>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Adam Jackson <ajax@redhat.com>
Cc: stable@kernel.org
Chris Wilson [Tue, 7 Sep 2010 20:51:02 +0000 (21:51 +0100)]
Revert "drm/i915: Enable RC6 on Ironlake."
This reverts commit
ce17178094f368d9e3f39b2cb4303da5ed633dd4.
This commit has been independently bisected a few times as being the cause
of a s2ram failure.
Reported-and-tested-by: Kyle McMartin <kyle@mcmartin.ca>
Reported-and-tested-by: Andy Isaacson <adi@hexapodia.org>
Cc: Zou Nan hai <nanhai.zou@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Zhenyu Wang [Tue, 7 Sep 2010 05:45:32 +0000 (13:45 +0800)]
intel_agp,i915: Add more sandybridge graphics device ids
New pci ids for GT2 and GT2+ on desktop and mobile sandybridge,
and graphics device ids for server sandybridge. Also rename original
ids string to reflect GT1 version.
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: stable@kernel.org
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Zhenyu Wang [Mon, 30 Aug 2010 08:12:42 +0000 (16:12 +0800)]
drm/i915: Enable MI_FLUSH on Sandybridge
MI_FLUSH is being deprecated, but still available on Sandybridge.
Make sure it's enabled as userspace still uses MI_FLUSH.
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: stable@kernel.org
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Zhenyu Wang [Fri, 27 Aug 2010 03:08:57 +0000 (11:08 +0800)]
agp/intel: Fix cache control for Sandybridge
Sandybridge GTT has new cache control bits in PTE, which controls
graphics page cache in LLC or LLC/MLC, so we need to extend the mask
function to respect the new bits.
And set cache control to always LLC only by default on Gen6.
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: stable@kernel.org
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Zhenyu Wang [Fri, 27 Aug 2010 03:06:48 +0000 (11:06 +0800)]
agp/intel: use #ifdef idiom for intel-agp.h
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: stable@kernel.org
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Zhenyu Wang [Mon, 23 Aug 2010 06:37:52 +0000 (14:37 +0800)]
agp/intel: fix physical address mask bits for sandybridge
It should shift bit 39-32 into pte's bit 11-4.
Reported-by:Takashi Iwai <tiwai@suse.de>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: stable@kernel.org
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Mon, 6 Sep 2010 15:17:22 +0000 (16:17 +0100)]
drm/i915: Prevent double dpms on
Arguably this is a bug in drm-core in that we should not be called twice
in succession with DPMS_ON, however this is still occuring and we see
FDI link training failures on the second call leading to the occassional
blank display. For the time being ignore the repeated call.
Original patch by Dave Airlie <airlied@redhat.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Chris Wilson [Sun, 5 Sep 2010 09:01:13 +0000 (10:01 +0100)]
drm/i915: Avoid use of uninitialised values when disabling panel-fitter
We were passing garbage values into the panel-fitter control register
when disabling it on Ironlake - those values (filter modes and reserved
MBZ bits) would have then be re-used the next time panel-fitting was
enabled.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Simon Farnsworth [Wed, 1 Sep 2010 16:47:52 +0000 (17:47 +0100)]
drm/i915: Avoid pageflipping freeze when we miss the flip prepare interrupt
When we miss the flip prepare interrupt, we never get into the
software state needed to restart userspace, resulting in a freeze of a
full-screen OpenGL application (such as a compositor).
Work around this by checking DSPxSURF/DSPxBASE to see if the page flip
has actually happened. If it has, do the work we would have done when
the flip prepare interrupt comes in.
Also, add debugfs information to tell us what's going on (based on the
patch from Chris Wilson attached to bugs.fdo bug #29798).
Signed-off-by: Simon Farnsworth <simon.farnsworth@onelan.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Sun, 22 Aug 2010 09:54:23 +0000 (10:54 +0100)]
drm/i915: Tightly scope intel_encoder to prevent invalid use
We reset intel_encoder for every matching encoder whilst iterating over
the encoders attached to this crtc when changing mode. As such in a
cloned configuration intel_encoder may not correspond to the correct
is_edp encoder.
By scoping intel_encoder to the loop, not only is the compiler able to
spot this mistake, we also improve readiability for ourselves.
[It might not be a mistake, within this function it is unclear as to
whether it is permissable for eDP to be cloned...]
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Fri, 20 Aug 2010 13:36:45 +0000 (14:36 +0100)]
drm/i915: Allocate the PCI resource for the MCHBAR
We were failing when trying to allocate the resource for MMIO of the
MCHBAR because we forgot to specify what type of resource we wanted.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: stable@kernel.org
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Chris Wilson [Wed, 18 Aug 2010 17:12:56 +0000 (18:12 +0100)]
drm/i915/dp: Really try 5 times before giving up.
Only stop trying if the aux channel sucessfully reports that the
transmission was completed, otherwise try again. On the 5th failure,
bail and report that something is amiss.
This fixes a sporadic failure in reading the EDID for my external panel
over DP.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Chris Wilson [Thu, 12 Aug 2010 14:26:41 +0000 (15:26 +0100)]
drm/i915/sdvo: Restore guess of the DDC bus in absence of VBIOS
If the VBIOS tells us the mapping of the SDVO device onto the DDC bus,
use it. However, if there is no VBIOS available that mapping is
uninitialised and we should fallback to our earlier guess.
Fix regression introduced in
b1083333 (which in turn is a fix for the
regression caused by the introduction of this guess,
14571b4).
References:
Bug 29499 - [945GM] Screen disconnected because of missing VBIOS
https://bugs.freedesktop.org/show_bug.cgi?id=29499
Bug 15109 - i945GM fails to detect EDID on DVI port
https://bugzilla.kernel.org/show_bug.cgi?id=15109
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reported-and-tested-by: Paul Neumann <paul104x@yahoo.de>
Cc: Adam Jackson <ajax@redhat.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: stable@kernel.org
Chris Wilson [Mon, 9 Aug 2010 16:21:44 +0000 (17:21 +0100)]
drm/i915/dp: Boost timeout for enabling transcoder to 100ms
Adam Hill reported that his Arrandale system required a much longer, up
to 200x500us, wait for the panel to initialise or else modesetting would
fail.
References:
https://bugs.freedesktop.org/show_bug.cgi?id=29141
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reported-and-tested-by: Adam Hill <sidepipeuk@yahoo.co.uk>
Chris Wilson [Sun, 8 Aug 2010 12:20:19 +0000 (13:20 +0100)]
drm/i915: Re-use set_base_atomic to share setting of the display registers
Lets try to avoid repeating old bugs.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Chris Wilson [Sun, 8 Aug 2010 09:15:59 +0000 (10:15 +0100)]
drm/i915: Fix offset page-flips on i965+
i965 uses the Display Registers to compute the offset from the display
base so the new base does not need adjusting when flipping. The older
chipsets use a fence to access the display and so do perceive the
surface as linear and have a single base register which is reprogrammed
using the flip.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Reported-by: Marty Jack <martyj19@comcast.net>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Chris Wilson [Wed, 11 Aug 2010 08:59:24 +0000 (09:59 +0100)]
drm/i915: Include a generation number in the device info
To simplify the IS_GEN[234] macros and to enable switching.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Dan Carpenter [Wed, 23 Jun 2010 17:03:01 +0000 (19:03 +0200)]
i915: return -EFAULT if copy_to_user fails
copy_to_user() returns the number of bytes remaining to be copied and
I'm pretty sure we want to return a negative error code here.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Dan Carpenter [Sat, 19 Jun 2010 13:12:51 +0000 (15:12 +0200)]
i915: return -EFAULT if copy_to_user fails
copy_to_user returns the number of bytes remaining to be copied, but we
want to return a negative error code here. These are returned to
userspace.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Chris Wilson [Sat, 4 Sep 2010 13:57:27 +0000 (14:57 +0100)]
agp/intel: Promote warning about failure to setup flush to error.
Make sure we always detect when we fail to correctly allocate the Isoch
Flush Page and print an error to warn the user about the likely memory
corruption that will result in invalid rendering or worse.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Daniel Vetter [Mon, 30 Aug 2010 19:25:23 +0000 (21:25 +0200)]
drm/i915: overlay on gen2 can't address above 1G
So set the coherent dma mask accordingly. This dma mask is only used
for physical objects, so it won't really matter allocation-wise.
Now this never really surfaced because sane 32bit kernels only have 1G
of lowmem. But some eager testers (distros?) still carry around the patch
to adjust lowmem via a kconfig option. And the kernel seems to favour
high allocations on boot-up, hence the overlay blowing up reliably.
Because the patch is tiny and nicely shows how broken gen2 is it's imho
worth to merge despite the fact that mucking around with the lowmem/
highmem division is (no longer) supported.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=28318
Cc: stable@kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Sun, 5 Sep 2010 19:25:43 +0000 (20:25 +0100)]
drm/i915: Clear the vblank status bit before polling for the next vblank
The vblank status bit is a sticky bit that must be cleared with a write
of '1' prior to polling for the next vblank.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Sitsofe Wheeler <sitsofe@yahoo.com>
jbarnes: I'd still rather see a lock, but I think you're right that
we don't generally wait in code that needs not to miss an interrupt.
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Pekka Enberg [Sat, 4 Sep 2010 16:24:04 +0000 (19:24 +0300)]
i915: Fix spurious TV detection after
9d0498a2bf +
9559fcdbff
Partial revert of
9d0498a2bf.
Signed-off-by: Pekka Enberg <penberg@kernel.org>
Tested-by: Hugh Dickins <hughd@google.com>
Tested-by: Sven Joachim <svenjoac@gmx.de>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Pavel Roskin [Thu, 2 Sep 2010 18:46:34 +0000 (14:46 -0400)]
i915: revert some checks added by commit
32aad86f
This fixes blur-like screen corruption on the following card:
VGA compatible controller [0300]: Intel Corporation 82G33/G31 Express
Integrated Graphics Controller [8086:29c2] (rev 10)
intel_sdvo_mode_set() should not return prematurely just because some
features are not supported.
https://bugzilla.kernel.org/show_bug.cgi?id=17151
Signed-off-by: Pavel Roskin <proski@gnu.org>
Reported-by: Jonathan Corbet <corbet@lwn.net>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
[ickle: Relax a couple more checks for failing LVDS modesetting]
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson [Mon, 6 Sep 2010 13:44:14 +0000 (14:44 +0100)]
Revert "drm/i915: Unreference object not handle on creation"
This reverts commit
86f100b136626e91f4f66f3776303475e2e58998.
The kref API requires the handlecount to be initialised to one on object
creation (so that kref_get() doesn't complain upon first use) so the
dalliance in the drivers is required in order to sink the initial
floating reference.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Andrew Morton [Tue, 24 Aug 2010 23:35:52 +0000 (16:35 -0700)]
drivers/gpu/drm/i915/intel_overlay.c needs seq_file.h
drivers/gpu/drm/i915/intel_overlay.c: In function 'intel_overlay_print_error_state':
drivers/gpu/drm/i915/intel_overlay.c:1467: error: implicit declaration of function 'seq_printf'
Addresses https://bugzilla.kernel.org/show_bug.cgi?id=16811
Reported-by: Martin Ziegler <ziegler@uni-freiburg.de>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Eric Anholt <eric@anholt.net>
Cc: Dave Airlie <airlied@linux.ie>
Cc: Andre Muller <andremuellerster@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Daniel Vetter [Mon, 23 Aug 2010 20:53:28 +0000 (22:53 +0200)]
drm: kill get_reg_ofs callback
Every driver used the default implementation. Fold that one into
the only callsite and drop the callback.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Daniel Vetter [Mon, 23 Aug 2010 20:53:32 +0000 (22:53 +0200)]
drm: kill dev->timer
Totally unused.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Daniel Vetter [Mon, 23 Aug 2010 20:53:36 +0000 (22:53 +0200)]
drm: kill agp indirection mess
There's no point in jumping through two indirections. So kill one
and call the kernels agp functions directly.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Daniel Vetter [Mon, 23 Aug 2010 20:53:31 +0000 (22:53 +0200)]
drm: replace drawable ioctl by noops
The information supplied by userspace through these ioctls is only
accessible by dev->drw_idr. But there's no in-tree user of that.
Also userspace does not really care about return values of these ioctls,
either. Only hw/xfree86/dri/dri.c from the xserver actually checks the
return from adddraw and keeps on trying to create a kernel drawable
every time somebody creates a dri drawable. But since that's now a noop,
who cares.
Therefore it's safe to replace these three ioctls with noops and rip
out the implementation.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
Reviewed-by: Michel Dänzer <michel@daenzer.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Daniel Vetter [Mon, 23 Aug 2010 20:53:34 +0000 (22:53 +0200)]
drm: don't export dri1 locking functions
Only used by ioctl, not by any in-tree drivers.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Daniel Vetter [Mon, 23 Aug 2010 20:53:27 +0000 (22:53 +0200)]
drm: kill drm_map_ofs callbacks
All drivers happily copy&pasted the default implementation without
checking whether this callback is used at all. It's not. Sigh.
Kill it.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Daniel Vetter [Mon, 23 Aug 2010 20:53:35 +0000 (22:53 +0200)]
drm: drop return value of drm_free_agp
No caller (rightly) cares about it, so drop it.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Daniel Vetter [Mon, 23 Aug 2010 20:53:30 +0000 (22:53 +0200)]
drm: don't export drm_get_drawable_info
Not used by any in-tree user. So drop it.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Daniel Vetter [Mon, 23 Aug 2010 20:53:29 +0000 (22:53 +0200)]
drm: kill context_ctor callback
It's not used by any driver. The destructor callback is unfortunately
used by the via driver in a rather convoluted piece of code used
to reimplement something resembling broken futexes. I didn't dare
to touch this code. But at least kill the needless NULL assignemt
in the sis driver.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Daniel Vetter [Mon, 23 Aug 2010 20:53:33 +0000 (22:53 +0200)]
drm: kill gem_free_object_unlocked driver callback
Not used by any current driver.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Daniel Vetter [Mon, 23 Aug 2010 20:53:25 +0000 (22:53 +0200)]
drm: kill dma_ready callbacks
Not used by any driver. So drop it.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Daniel Vetter [Mon, 23 Aug 2010 20:53:26 +0000 (22:53 +0200)]
drm: kill procfs callbacks
Not used by any driver (rightly so!). Kill them.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Daniel Vetter [Mon, 23 Aug 2010 20:53:24 +0000 (22:53 +0200)]
drm: kill kernel_context_switch callbacks
Not used by any in-kernel driver. So drop it.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Daniel Vetter [Mon, 23 Aug 2010 20:53:23 +0000 (22:53 +0200)]
drm: don't export drm_sg_alloc
It's not used internally by any driver, only by some generic ioctls.
So don't export it.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Linus Torvalds [Sun, 29 Aug 2010 15:36:04 +0000 (08:36 -0700)]
Linux 2.6.36-rc3
Linus Torvalds [Sun, 29 Aug 2010 15:19:02 +0000 (08:19 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ieee1394/linux1394-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
firewire: ohci: work around VIA and NEC PHY packet reception bug
firewire: core: do not use del_timer_sync() in interrupt context
firewire: net: fix unicast reception RCODE in failure paths
firewire: sbp2: fix stall with "Unsolicited response"
firewire: sbp2: fix memory leak in sbp2_cancel_orbs or at send error
ieee1394: Adjust confusing if indentation
Stefan Richter [Sat, 28 Aug 2010 12:21:26 +0000 (14:21 +0200)]
firewire: ohci: work around VIA and NEC PHY packet reception bug
VIA VT6306, VIA VT6308, and NEC OrangeLink controllers do not write
packet event codes for received PHY packets (or perhaps write
evt_no_status, hard to tell). Work around it by overwriting the
packet's ACK by ack_complete, so that upper layers that listen to PHY
packet reception get to see these packets.
(Also tested: TI TSB82AA2, TI TSB43AB22/A, TI XIO2213A, Agere FW643,
JMicron JMB381 --- these do not exhibit this bug.)
Clemens proposed a quirks flag for that, IOW whitelist known misbehaving
controllers for this workaround. Though to me it seems harmless enough
to enable for all controllers.
The log_ar_at_event() debug log will continue to show the original
status from the DMA unit.
Reported-by: Clemens Ladisch <clemens@ladisch.de> (VT6308)
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Linus Torvalds [Sat, 28 Aug 2010 22:42:44 +0000 (15:42 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
net/ipv4: Eliminate kstrdup memory leak
net/caif/cfrfml.c: use asm/unaligned.h
ax25: missplaced sock_put(sk)
qlge: reset the chip before freeing the buffers
l2tp: test for ethernet header in l2tp_eth_dev_recv()
tcp: select(writefds) don't hang up when a peer close connection
tcp: fix three tcp sysctls tuning
tcp: Combat per-cpu skew in orphan tests.
pxa168_eth: silence gcc warnings
pxa168_eth: update call to phy_mii_ioctl()
pxa168_eth: fix error handling in prope
pxa168_eth: remove unneeded null check
phylib: Fix race between returning phydev and calling adjust_link
caif-driver: add HAS_DMA dependency
3c59x: Fix deadlock between boomerang_interrupt and boomerang_start_tx
qlcnic: fix poll implementation
netxen: fix poll implementation
bridge: netfilter: fix a memory leak
Linus Torvalds [Sat, 28 Aug 2010 21:24:49 +0000 (14:24 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/vapier/blackfin
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin:
Blackfin: bf52x/bf54x boards: drop unused nand page size
Blackfin: punt duplicate SPORT MMR defines
Linus Torvalds [Sat, 28 Aug 2010 21:24:34 +0000 (14:24 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ALSA: pcm: add more format names
sound: oss: fix uninitialized spinlock
ALSA: asihpi - Return hw error directly from oustream_write.
ASoC: soc-core: fix debugfs_pop_time file permissions
ALSA: hda - Add Sony VAIO quirk for ALC269
Linus Torvalds [Sat, 28 Aug 2010 21:12:05 +0000 (14:12 -0700)]
Merge branch 's5p-fixes-for-linus' of git://git./linux/kernel/git/kgene/linux-samsung
* 's5p-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: S5PV310: Fix on Secondary CPU startup
ARM: S5PV310: Bug fix on uclk1 and sclk_pwm
ARM: S5PV310: Fix missed uart clocks
ARM: S5PV310: Should be clk_sclk_apll not clk_mout_apll
ARM: S5PV310: Fix on PLL setting for S5PV310
ARM: S5PV310: Add CMU block for S5PV310 Clock
ARM: S5PV310: Fix on typo irqs.h of S5PV310
ARM: S5PV310: Fix on default ZRELADDR of ARCH_S5PV310
ARM: S5PV310: Fix on GPIO base addresses
ARM: SAMSUNG: Fix on build warning regarding VMALLOC_END type
ARM: S5P: VMALLOC_END should be unsigned long
Linus Torvalds [Sat, 28 Aug 2010 21:11:04 +0000 (14:11 -0700)]
Merge branch 'for-linus' of git://git.infradead.org/users/eparis/notify
* 'for-linus' of git://git.infradead.org/users/eparis/notify:
fsnotify: drop two useless bools in the fnsotify main loop
fsnotify: fix list walk order
fanotify: Return EPERM when a process is not privileged
fanotify: resize pid and reorder structure
fanotify: drop duplicate pr_debug statement
fanotify: flush outstanding perm requests on group destroy
fsnotify: fix ignored mask handling between inode and vfsmount marks
fanotify: add MAINTAINERS entry
fsnotify: reset used_inode and used_vfsmount on each pass
fanotify: do not dereference inode_mark when it is unset
Linus Torvalds [Sat, 28 Aug 2010 21:10:43 +0000 (14:10 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ecryptfs/ecryptfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6:
eCryptfs: Fix encrypted file name lookup regression
ecryptfs: properly mark init functions
fs/ecryptfs: Return -ENOMEM on memory allocation failure
Linus Torvalds [Sat, 28 Aug 2010 21:09:16 +0000 (14:09 -0700)]
Merge branch 'for-linus' of git://android.git./kernel/tegra
* 'for-linus' of git://android.git.kernel.org/kernel/tegra:
arm: tegra: VMALLOC_END should be unsigned long
arm: tegra: fix compilation of board-harmony.c
Linus Torvalds [Sat, 28 Aug 2010 21:08:38 +0000 (14:08 -0700)]
Merge branch 'drm-fixes' of git://git./linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
vgaarb: Wrap vga_(get|put) in CONFIG_VGA_ARB
drm/radeon/kms: add missing scratch update in dp_detect
drm/modes: Fix CVT-R modeline generation
drm: fix regression in drm locking since BKL removal.
drm/radeon/kms: remove stray radeon_i2c_destroy
drm: mm: fix range restricted allocations
drm/nouveau: drop drm_global_mutex before sleeping in submission path
drm: export drm_global_mutex for drivers to use
drm/nv20: Don't use pushbuf calls on the original nv20.
drm/nouveau: Fix TMDS on some DCB1.5 boards.
drm/nouveau: Fix backlight control on PPC machines with an internal TMDS panel.
drm/nv30: Apply modesetting to the correct slave encoder
drm/nouveau: Use a helper function to match PCI device/subsystem IDs.
drm/nv50: add dcb type 14 to enum to prevent compiler complaint
Linus Torvalds [Sat, 28 Aug 2010 21:08:10 +0000 (14:08 -0700)]
Merge branch 'lguest' of git://git./linux/kernel/git/rusty/linux-2.6-for-linus
* 'lguest' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
lguest: Odd Fixes
lguest: clean up warnings in demonstration launcher.
Linus Torvalds [Sat, 28 Aug 2010 21:07:38 +0000 (14:07 -0700)]
Merge branch 'omap-fixes-for-linus' of git://git./linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6:
OMAP3: PM: ensure IO wakeups are properly disabled
omap: Fix omap_4430sdp_defconfig for make oldconfig
omap: Use CONFIG_SMP for test_for_ipi and test_for_ltirq
omap: Fix sev instruction usage for multi-omap
OMAP3: Fix a cpu type check problem
omap3: id: fix 3630 rev detection
Linus Torvalds [Sat, 28 Aug 2010 21:07:20 +0000 (14:07 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/sage/ceph-client
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
ceph: fix get_ticket_handler() error handling
ceph: don't BUG on ENOMEM during mds reconnect
ceph: ceph_mdsc_build_path() returns an ERR_PTR
ceph: Fix warnings
ceph: ceph_get_inode() returns an ERR_PTR
ceph: initialize fields on new dentry_infos
ceph: maintain i_head_snapc when any caps are dirty, not just for data
ceph: fix osd request lru adjustment when sending request
ceph: don't improperly set dir complete when holding EXCL cap
mm: exporting account_page_dirty
ceph: direct requests in snapped namespace based on nonsnap parent
ceph: queue cap snap writeback for realm children on snap update
ceph: include dirty xattrs state in snapped caps
ceph: fix xattr cap writeback
ceph: fix multiple mds session shutdown
Linus Torvalds [Sat, 28 Aug 2010 21:06:19 +0000 (14:06 -0700)]
Merge branch 'pm-fixes' of git://git./linux/kernel/git/rafael/suspend-2.6
* 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:
PM QoS: Fix inline documentation.
PM QoS: Fix kzalloc() parameters swapped in pm_qos_power_open()
Linus Torvalds [Sat, 28 Aug 2010 21:05:55 +0000 (14:05 -0700)]
Merge branch 'for-2.6.36' of git://linux-nfs.org/~bfields/linux
* 'for-2.6.36' of git://linux-nfs.org/~bfields/linux:
nfsd: fix NULL dereference in nfsd_statfs()
nfsd4: fix downgrade/lock logic
nfsd4: typo fix in find_any_file
nfsd4: bad BUG() in preprocess_stateid_op
Linus Torvalds [Sat, 28 Aug 2010 21:05:15 +0000 (14:05 -0700)]
Merge git://git./linux/kernel/git/sfrench/cifs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
Cannot allocate memory error on mount
[CIFS] Eliminate unused variable warning
David Howells [Thu, 26 Aug 2010 16:44:35 +0000 (17:44 +0100)]
Alpha: Fix a missing comma in sys_osf_statfs()
Fix a comma that got accidentally deleted from sys_osf_statfs() leading to the
following warning:
arch/alpha/kernel/osf_sys.c: In function 'SYSC_osf_statfs':
arch/alpha/kernel/osf_sys.c:255: error: syntax error before 'buffer'
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Thu, 26 Aug 2010 15:00:34 +0000 (16:00 +0100)]
NOMMU: Stub out vm_get_page_prot() if there's no MMU
Stub out vm_get_page_prot() if there's no MMU.
This was added by commit
804af2cf6e7a ("[AGPGART] remove private page
protection map") and is used in commit
c07fbfd17e61 ("fbmem: VM_IO set,
but not propagated") in the fbmem video driver, but the function doesn't
exist on NOMMU, resulting in an undefined symbol at link time.
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 28 Aug 2010 20:55:54 +0000 (13:55 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/bp/bp
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
amd64_edac: Do not report error overflow as a separate error
MCE, AMD: Limit MCE decoding to current families for now
Linus Torvalds [Sat, 28 Aug 2010 20:55:31 +0000 (13:55 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: pxa27x_keypad - remove input_free_device() in pxa27x_keypad_remove()
Input: mousedev - fix regression of inverting axes
Input: uinput - add devname alias to allow module on-demand load
Input: hil_kbd - fix compile error
USB: drop tty argument from usb_serial_handle_sysrq_char()
Input: sysrq - drop tty argument form handle_sysrq()
Input: sysrq - drop tty argument from sysrq ops handlers
Linus Torvalds [Sat, 28 Aug 2010 20:54:55 +0000 (13:54 -0700)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
libata-sff: remove harmful BUG_ON from ata_bmdma_qc_issue
sata_mv: fix broken DSM/TRIM support (v2)
libata: be less of a drama queen on empty data commands
[libata] sata_dwc_460ex: signdness bug
ahci: add HFLAG_YES_FBS and apply it to 88SE9128
libata: remove no longer needed pata_winbond driver
pata_cmd64x: revert commit
d62f5576
Hugh Dickins [Thu, 26 Aug 2010 06:12:54 +0000 (23:12 -0700)]
mm: fix hang on anon_vma->root->lock
After several hours, kbuild tests hang with anon_vma_prepare() spinning on
a newly allocated anon_vma's lock - on a box with CONFIG_TREE_PREEMPT_RCU=y
(which makes this very much more likely, but it could happen without).
The ever-subtle page_lock_anon_vma() now needs a further twist: since
anon_vma_prepare() and anon_vma_fork() are liable to change the ->root
of a reused anon_vma structure at any moment, page_lock_anon_vma()
needs to check page_mapped() again before succeeding, otherwise
page_unlock_anon_vma() might address a different root->lock.
Signed-off-by: Hugh Dickins <hughd@google.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Takashi Iwai [Sat, 28 Aug 2010 19:44:15 +0000 (21:44 +0200)]
Merge branch 'fix/asoc' into for-linus
Takashi Iwai [Sat, 28 Aug 2010 19:44:12 +0000 (21:44 +0200)]
Merge branch 'fix/hda' into for-linus
Dan Carpenter [Fri, 27 Aug 2010 20:02:15 +0000 (22:02 +0200)]
ALSA: pcm: add more format names
There were some new formats added in commit
15c0cee6c809 "ALSA: pcm:
Define G723 3-bit and 5-bit formats". That commit increased
SNDRV_PCM_FORMAT_LAST as well. My concern is that there are a couple
places which do:
for (i = 0; i < SNDRV_PCM_FORMAT_LAST; i++) {
if (dummy->pcm_hw.formats & (1ULL << i))
snd_iprintf(buffer, " %s", snd_pcm_format_name(i));
}
I haven't tested these but it looks like if "i" were equal to
SNDRV_PCM_FORMAT_G723_24 or higher then we might read past the end of
the array.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Akinobu Mita [Sat, 28 Aug 2010 04:25:33 +0000 (13:25 +0900)]
sound: oss: fix uninitialized spinlock
The spinlock lock in sound_timer.c is used without initialization.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Eliot Blennerhassett [Sat, 28 Aug 2010 07:52:24 +0000 (19:52 +1200)]
ALSA: asihpi - Return hw error directly from oustream_write.
If hw error is ignored, status is updated with invalid info.
Signed-off-by: Eliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Julia Lawall [Sat, 28 Aug 2010 02:31:56 +0000 (19:31 -0700)]
net/ipv4: Eliminate kstrdup memory leak
The string clone is only used as a temporary copy of the argument val
within the while loop, and so it should be freed before leaving the
function. The call to strsep, however, modifies clone, so a pointer to the
front of the string is kept in saved_clone, to make it possible to free it.
The sematic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@r exists@
local idexpression x;
expression E;
identifier l;
statement S;
@@
*x= \(kasprintf\|kstrdup\)(...);
...
if (x == NULL) S
... when != kfree(x)
when != E = x
if (...) {
<... when != kfree(x)
* goto l;
...>
* return ...;
}
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Paris [Sat, 28 Aug 2010 01:42:11 +0000 (21:42 -0400)]
fsnotify: drop two useless bools in the fnsotify main loop
The fsnotify main loop has 2 bools which indicated if we processed the
inode or vfsmount mark in that particular pass through the loop. These
bool can we replaced with the inode_group and vfsmount_group variables
and actually make the code a little easier to understand.
Signed-off-by: Eric Paris <eparis@redhat.com>
Eric Paris [Sat, 28 Aug 2010 01:24:24 +0000 (21:24 -0400)]
fsnotify: fix list walk order
Marks were stored on the inode and vfsmonut mark list in order from
highest memory address to lowest memory address. The code to walk those
lists thought they were in order from lowest to highest with
unpredictable results when trying to match up marks from each. It was
possible that extra events would be sent to userspace when inode
marks ignoring events wouldn't get matched with the vfsmount marks.
This problem only affected fanotify when using both vfsmount and inode
marks simultaneously.
Signed-off-by: Eric Paris <eparis@redhat.com>
Andreas Gruenbacher [Tue, 24 Aug 2010 10:58:54 +0000 (12:58 +0200)]
fanotify: Return EPERM when a process is not privileged
The appropriate error code when privileged operations are denied is
EPERM, not EACCES.
Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Signed-off-by: Eric Paris <paris@paris.rdu.redhat.com>