Commit Graph

287345 Commits

Author SHA1 Message Date
Kirill A. Shutemov
670c044454 gma500: use DRM_IOCTL_DEF_DRV instead of custom PSB_IOCTL_DEF
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-03-10 13:06:02 +00:00
Kirill A. Shutemov
3afad3c2bc gma500: mmu: mark psb_mmu_free_pt() and psb_mmu_pt_alloc_map_lock() as static
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-03-10 13:06:01 +00:00
Kirill A. Shutemov
b2d57b337f gma500: mmu: drop unused psb_get_default_pd_addr()
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-03-10 13:06:00 +00:00
Kirill A. Shutemov
ffe94d9c75 gma500: gtt: mark psb_gtt_entry() and psb_gtt_alloc() as static
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-03-10 13:05:59 +00:00
Kirill A. Shutemov
bc7f2b0839 gma500: mark psb_fbdev_destroy() and psb_fbdev_fini() as static
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-03-10 13:05:58 +00:00
Kirill A. Shutemov
4796001a7d gma500: drop unused psbfb_suspend()/psbfb_resume()
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-03-10 13:05:57 +00:00
Kirill A. Shutemov
a58df0ade9 gma500: gem_glue: add missing include
It fixes W=1 warnings:

drivers/gpu/drm/gma500/gem_glue.c:23:6: warning: no previous prototype for ‘drm_gem_object_release_wrap’ [-Wmissing-prototypes]
drivers/gpu/drm/gma500/gem_glue.c:44:5: warning: no previous prototype for ‘gem_create_mmap_offset’ [-Wmissing-prototypes]

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-03-10 13:05:56 +00:00
Kirill A. Shutemov
89f58dcdf9 gma500: medfield: drop a bit of dead code
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-03-10 13:05:52 +00:00
Kirill A. Shutemov
fda95c2e73 gma500: mdfld_dsi_output_init() drop unused parameter
Nobody uses 'config' parameter.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-03-10 13:05:51 +00:00
Kirill A. Shutemov
6aa1ead1b8 gma500: psbfb_create(): move depth initialization out of loop
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-03-10 13:05:50 +00:00
Kirill A. Shutemov
026abc3332 gma500: initial medfield merge
We need to merge this ahead of some of the cleanup because a lot of needed
cleanup spans both new and old chips. If we try and clean up and the merge
we end up fighting ourselves.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
[With a load of the cleanup stuff folded in, register stuff reworked sanely]
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-03-10 13:05:48 +00:00
Alan Cox
c6265ff593 gma500: rework register stuff sanely
Rework registers handling to prepare for Medfield.

Signed-off-by: Alan Cox <alan@linux.intel.com>
[split out from a single big patch]
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-03-10 13:05:44 +00:00
Kirill A. Shutemov
c715bc1bf4 gma500: make init_pm callback in struct psb_op optional
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-03-10 13:05:42 +00:00
Alan Cox
4578240b48 gma500: re-order calling on the fix setup so we set up after the DRM layer
Noted by Kirill A Shutemov

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-03-10 13:05:39 +00:00
Jesper Juhl
aa7c62af10 intel, gma500, lvds: Fix use after free and mem leak in psb_intel_lvds_init()
In psb_intel_lvds_init(), if we fail to allocate memory for
'psb_intel_connector' we free the memory we previously allocated for
'psb_intel_encoder', but we then proceed to use that free'd pointer
when we do 'psb_intel_encoder->dev_priv = lvds_priv;'.

We may also leak the memory we allocated for 'psb_intel_encoder' if we
'goto failed_connector;' and the variable goes out of scope.

While I was there anyway, I also removed the pointless 'if
(psb_intel_connector)' before freeing it at the 'failed_connector:'
label - kfree() deals gracefully with NULL pointers, so it is not
needed.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-03-10 13:05:37 +00:00
Alan Cox
05442e5e1f gma500: Kconfig documentation tweak
Update this to better reflect the status

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-03-10 13:05:29 +00:00
Alan Cox
648a8e342c gma500: now move the Oaktrail save state into its own structure
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-03-10 13:05:28 +00:00
Alan Cox
933315acb6 gma500: clean up some of the struct fields we no longer use
Some this is Medfield stuff that may reappear in some form later, other
bits are just dead stuff

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-03-10 13:05:25 +00:00
Alan Cox
3df546be6b gma500: plug in more of the gamma functionality
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-03-10 13:05:23 +00:00
Rob Clark
b19c19afa8 drm: cope with platformdev->id == -1
If there are not multiple instances of a platform device, the id
should apparently be set to -1.  Which results in a odd looking
bus-id like "platform:foodrm:-1".  Probably we should just treat
this case as id 0.

Signed-off-by: Rob Clark <rob@ti.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-03-07 14:03:40 +00:00
Dave Airlie
966e0cdd50 drm: drop setting vm_file to filp
Talking to Al Viro on irc, we can see no possible reason for doing
this, the upper mmap code does it. The code has been there since
first import into drm tree I can find.

Al tracked down this as a requirement pre 2.3.51 hasn't been needed since.

Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-03-05 11:19:08 +00:00
Felix Kuehling
81ffbbedc3 drm/radeon: fix deferred page-flip detection logic on Avivo-based ASICs
This fixes page-flip-related flickering observed on Iconia Tab W500.

The update_pending status returned by radeon_page_flip is very accurate on
Avivo-based ASICs when vpos is negative.

Experiments were conducted on several ASIC generations ranging from RS690
to Cayman where the page flip was artificially timed to occur at a specific
vpos. With negative vpos, overriding update_pending always lead to
flickering.

The same experiment on RV380 and RV410 showed that update_pending is not
accurate with negative vpos. In most cases update_pending == 1 is returned
although the flip would complete before the start of the next frame.
Therefore I left the behaviour unchanged for pre-AVIVO ASICs for
performance reasons, although this may result in flickering in rare cases.

This change also makes the logic a little easier to understand.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Mario Kleiner <mario.kleiner@tuebingen.mpg.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-29 10:23:50 +00:00
Sascha Hauer
884a53ef43 drm: remove unused code
remove declared but unused functions from drmP.h, fix the comments
where necessary. Also, remove drm_mem_info which is unused.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-29 10:18:29 +00:00
Alex Deucher
54e88e065e drm/radeon/kms: clean up radeon_asic struct (v2)
v2: fix typo.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König<christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-29 10:16:20 +00:00
Alex Deucher
9e6f3d02c4 drm/radeon/kms: reorganize surface callbacks
tidy up the radeon_asic struct.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König<christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-29 10:15:25 +00:00
Alex Deucher
798bcf7341 drm/radeon/kms: move clock/pcie setting callbacks into pm struct
tidy up radeon_asic struct.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König<christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-29 10:15:16 +00:00
Alex Deucher
c79a49ca00 drm/radeon/kms: reorganize display callbacks
tidy up the radeon_asic struct.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König<christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-29 10:15:06 +00:00
Alex Deucher
c5b3b8504f drm/radeon/kms: reorganize gart callbacks
tidy up the radeon_asic struct.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König<christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-29 10:14:57 +00:00
Alex Deucher
f712812e1b drm/radeon/kms: make ring_start, ring_test, and ib_test per ring
Each ring type may need a different variant.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König<christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-29 10:14:47 +00:00
Alex Deucher
dfb276f098 drm/radeon/kms: remove unused cp callbacks from radeon_asic
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König<christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-29 10:14:36 +00:00
Alex Deucher
b35ea4ab88 drm/radeon/kms: reorganize irq callbacks
tidy up the radeon_asic struct.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König<christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-29 10:14:29 +00:00
Alex Deucher
27cd77694b drm/radeon/kms: reorganize copy callbacks
tidy up the radeon_asic struct, handle multiple
rings better.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König<christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-29 10:14:14 +00:00
Christian König
293f9fd53a drm/radeon: fix IB debugfs files for multiple cards
Storing pointers to the IBs in a static var just
leads to giving the same content back for all
cards in the system.

Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-29 10:11:54 +00:00
Christian König
eb0c19c539 drm/radeon: also make the cs_parse function per ring
Not all rings use PM4, so the cs_parser also needs to be per ring.

Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-29 10:11:30 +00:00
Christian König
442f7cfa04 drm/radeon/kms: no need to align IB like this
So don't confuse devs by doing so.

Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Alex Deucher <alex.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-29 10:10:53 +00:00
Christian König
cdac5504b2 drm/radeon: move ring syncing after bo validation
The function radeon_bo_list_validate can cause a
bo to move, resulting in a different sync_obj
and a dependency to wait for this move to finish.

Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-29 10:01:57 +00:00
Alex Deucher
a02fa397b0 drm/radeon/kms: reorganize pm callbacks
tidy up the radeon_asic struct.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-27 14:49:35 +00:00
Alex Deucher
0f9e006c9a drm/radeon/kms: reorganize page flip callbacks
tidy up the radeon_asic struct.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-27 14:49:24 +00:00
Alex Deucher
901ea57dc4 drm/radeon/kms: reorganize hpd callbacks
tidy up the radeon_asic struct.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-27 14:49:04 +00:00
Alex Deucher
89e5181f3f drm/radeon/kms: add a radeon asic callback for mc idle
Required for future functionality.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-27 14:48:58 +00:00
Alex Deucher
3ae19b750b drm/radeon/kms: add wait_for_vblank asic callback
Required for future functionality.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-27 14:46:13 +00:00
Dave Airlie
e5bcf23443 Merge tag 'drm-intel-next-2012-02-16-merge-resolved' of git://people.freedesktop.org/~danvet/drm-intel into drm-core-next
* tag 'drm-intel-next-2012-02-16-merge-resolved' of git://people.freedesktop.org/~danvet/drm-intel: (45 commits)
  Revert "drivers/gpu/drm/i915/intel_overlay.c needs seq_file.h"
  drm/i915/lvds: Always use the presence pin for LVDS on PCH
  drm/i915: Record the position of the request upon error
  drm/i915: Record the in-flight requests at the time of a hang
  drm/i915: Record the tail at each request and use it to estimate the head
  drm/i915: add missing SDVO bits for interlaced modes on ILK
  drm/i915: Fix race condition in accessing GMBUS
  drm/i915: add a "force-dvi" HDMI audio mode
  drm/i915: Don't lock panel registers when downclocking
  drm/i915: fix up locking inconsistency around gem_do_init
  drm/i915: enable forcewake voodoo also for gen6
  drm/i915: fixup seqno allocation logic for lazy_request
  drm/i915: outstanding_lazy_request is a u32
  drm/i915: check gtfifodbg after possibly failed writes
  drm/i915: catch gtfifo errors on forcewake_put
  drm/i915: use gtfifodbg
  drm/i915: set interlaced bits for TRANSCONF
  drm/i915: fixup overlay checks for interlaced modes
  drm/i915: allow interlaced mode output on the HDMI connector
  drm/i915: allow interlaced mode output on the SDVO connector
  ...
2012-02-23 14:11:53 +00:00
Daniel Vetter
ff5f4b0585 Merge remote-tracking branch 'airlied/drm-next' into for-airlied
Manually resolve the conflict between the new enum drm property
helpers in drm-next and the new "force-dvi" option that the "audio" output
property gained in drm-intel-next.

While resolving this conflict, switch the new drm_prop_enum_list to
use the newly introduced enum defines instead of magic values.

Conflicts:
	drivers/gpu/drm/i915/intel_modes.c

Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-02-23 14:56:11 +01:00
Dave Airlie
019d96cb55 drm: add some caps for userspace to discover more info for dumb KMS driver (v2)
For the simple KMS driver case we need some more info about what the preferred
depth and if a shadow framebuffer is preferred.

I've only added this for intel/radeon which support the dumb ioctls so far.

If you need something really fancy you should be writing a real X.org driver.

v2: drop cursor information, just return an error from the cursor ioctls
and we can make userspace fallback to sw cursor in that case, cursor
info was getting too messy, best to start smaller.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-16 18:35:11 +00:00
Dave Airlie
466e69b8b0 drm: move pci bus master enable into driver.
The current enabling of bus mastering in the drm midlayer allows a large
race condition under kexec. When a kexec'ed kernel re-enables bus mastering
for the GPU, previously setup dma blocks may cause writes to random pieces
of memory. On radeon the writeback mechanism can cause these sorts of issues.

This patch doesn't fix the problem, but it moves the bus master enable under
the individual drivers control so they can move enabling it until later in
their load cycle and close the race.

Fix for radeon kms driver will be in a follow-up patch.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-16 18:31:07 +00:00
Danny Kukawka
de67cba659 Revert "drivers/gpu/drm/i915/intel_overlay.c needs seq_file.h"
This reverts commit e167976ee7,
Since this was already fixed in commit
3bd3c93299 some days before this
commit cause seq_file.h to be included twice.

Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-02-16 10:31:23 +01:00
Dan Carpenter
42b923b587 drm/radeon/evergreen: make texdw[] array larger
We store stuff in texdw[7] so this array needs to have 8 elements.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-16 09:18:13 +00:00
Chris Wilson
f3cfcba60f drm/i915/lvds: Always use the presence pin for LVDS on PCH
With the introduction of the PCH, we gained an LVDS presence pin but we
continued to use the existing logic that asserted that LVDS was only
supported on certain mobile chipsets. However, there are desktop
IronLake systems with LVDS attached which we fail to detect. So for PCH,
trust the LVDS presence pin and quirk all the lying manufacturers.

Tested-by: Daniel Woff <wolff.daniel@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=43171
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-02-15 16:41:34 +01:00
Chris Wilson
ee4f42b10b drm/i915: Record the position of the request upon error
So that we can tally the request against the command sequence in the
ringbuffer, or merely jump to the interesting locations.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-02-15 14:27:18 +01:00
Chris Wilson
52d39a2135 drm/i915: Record the in-flight requests at the time of a hang
Being able to tally the list of outstanding requests with the sequence
of commands in the ringbuffer is often useful evidence with respect to
driver corruption.

Note that since this is the umpteenth per-ring data structure to be added
to the error state, I've coallesced the nearby loops (the ringbuffer and
batchbuffer) into a single structure along with the list of requests.  A
later task would be to refactor the ring register state into the same
structure.

v2: Fix pretty printing of requests so that they are parsed correctly by
intel_error_decode and use the 0x%08x format for seqno for consistency

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-02-15 14:27:12 +01:00