diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2013-01-20 16:11:20 +0000 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2013-02-06 04:33:45 +0000 |
| commit | a2d2dcd9e1aa9585e2ffb757ce7f3fc80bcad9f1 (patch) | |
| tree | a88464358b548cf9b4bfffae2c957355d651b570 /lib/timerqueue.c | |
| parent | d31349bd14461e299df2443dfec5bf7725154393 (diff) | |
drm/i915: Disable AsyncFlip performance optimisations
commit 1c8c38c588ea91f8deeae21284840459d1bb58e3 upstream.
This is a required workarounds for all products, especially on gen6+
where it causes the command streamer to fail to parse instructions
following a WAIT_FOR_EVENT. We use WAIT_FOR_EVENT for synchronising
between the GPU and the display engines, and so this bit being unset may
cause hangs.
References: https://bugzilla.kernel.org/show_bug.cgi?id=52311
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
[bwh: Backported to 3.2:
- Adjust context
- s/_MASKED_BIT/GFX_MODE/]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'lib/timerqueue.c')
0 files changed, 0 insertions, 0 deletions