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drm/i915: Do not check or a stalled pageflip prior to it being queued

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When we queue the command or operation to change the scanout address, we
mark the flip as in progress. We can use this flag to prevent us from
checking for a stalled flip prior to its existence!

Signed-off-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>
This commit is contained in:
Chris Wilson 2015-08-12 13:08:22 +01:00 • committed by Daniel Vetter
parent ed75a55bb3
commit 908565c208
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/i915/intel_display.c
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@ -11236,6 +11236,9 @@ static bool __intel_pageflip_stall_check(struct drm_device *dev,
if (atomic_read(&work->pending) >= INTEL_FLIP_COMPLETE)
return true;
if (atomic_read(&work->pending) < INTEL_FLIP_PENDING)
return false;
if (!work->enable_stall_check)
return false;