[Intel-gfx] [PATCH 16/39] drm/i915: Execute signal callbacks from no-op i915_request_wait

[Chris Wilson]

If we enter i915_request_wait() with an already completed request, but
unsignaled dma-fence, signal the fence before returning. This allows us
to execute any of the signal callbacks at the earliest opportunity.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/i915_request.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
index ead68a2ffeac..a82f3ff82b39 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -1392,7 +1392,7 @@ long i915_request_wait(struct i915_request *rq,
 	might_sleep();
 	GEM_BUG_ON(timeout < 0);
 
-	if (i915_request_completed(rq))
+	if (dma_fence_is_signaled(&rq->fence))
 		return timeout;
 
 	if (!timeout)
-- 
2.20.1