redonkable/alistair23-linux
redonkable/alistair23-linux
1
0
Fork 0
Code Releases Activity

drm/i915: No busy-loop wait_for in the ring init code

Browse source 
Doing a 1s wait (tops) with the cpu is a bit excessive. Tune it down
like everything else in that code.

v2: Also insert the missing space Chris spotted.

Cc: Naresh Kumar Kachhi <naresh.kumar.kachhi@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2014-08-07 16:05:39 +02:00
parent 01e184cc85
commit 403bdd10c8
1 changed files with 2 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/gpu/drm/i915/intel_ringbuffer.c
View file

@ -476,8 +476,8 @@ static bool stop_ring(struct intel_engine_cs *ring)
if (!IS_GEN2(ring->dev)) {
I915_WRITE_MODE(ring, _MASKED_BIT_ENABLE(STOP_RING));
if (wait_for_atomic((I915_READ_MODE(ring) & MODE_IDLE) != 0, 1000)) {
DRM_ERROR("%s :timed out trying to stop ring\n", ring->name);
if (wait_for((I915_READ_MODE(ring) & MODE_IDLE) != 0, 1000)) {
DRM_ERROR("%s : timed out trying to stop ring\n", ring->name);
return false;
}
}