[Intel-gfx] [PATCH 3/3] drm/i915: Ignore submit-fences on the same timeline

[Chris Wilson]

While we ordinarily do not skip submit-fences due to the accompanying
hook that we want to callback on execution, a submit-fence on the same
timeline is meaningless.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
---
 drivers/gpu/drm/i915/i915_request.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
index 3c38d61c90f8..51b9e820ffe8 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -1242,6 +1242,9 @@ i915_request_await_execution(struct i915_request *rq,
 			continue;
 		}
 
+		if (fence->context == rq->fence.context)
+			continue;
+
 		/*
 		 * We don't squash repeated fence dependencies here as we
 		 * want to run our callback in all cases.
-- 
2.20.1