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drm/i915: Don't die in wait_for_pending_flips 

We can apperently miss them, but breaking the entire driver hampers
testing. So bail out after one minute, our customerary "this is a lost
cause" timeout.

References: https://bugs.freedesktop.org/show_bug.cgi?id=78383
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2014-05-19 16:09:35 +02:00
parent 42a88e97bc
commit eed6d67d92
1 changed files with 3 additions and 2 deletions
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5
drivers/gpu/drm/i915/intel_display.c
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@ -3274,8 +3274,9 @@ static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc)
WARN_ON(waitqueue_active(&dev_priv->pending_flip_queue));
wait_event(dev_priv->pending_flip_queue,
!intel_crtc_has_pending_flip(crtc));
WARN_ON(wait_event_timeout(dev_priv->pending_flip_queue,
!intel_crtc_has_pending_flip(crtc),
60*HZ) == 0);
mutex_lock(&dev->struct_mutex);
intel_finish_fb(crtc->primary->fb);