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Commit 6201e033 authored by Nayan Deshmukh's avatar Nayan Deshmukh Committed by Alex Deucher
Browse files

drm/scheduler: fix a corner case in dependency optimization 



When checking for a dependency fence for belonging to the same entity
compare it with scheduled as well finished fence. Earlier we were only
comparing it with the scheduled fence.

Signed-off-by: default avatarNayan Deshmukh <nayan26deshmukh@gmail.com>
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent adea72c5

drivers/gpu/drm/scheduler/gpu_scheduler.c

+7 −2
Original line number Diff line number Diff line
@@ -349,8 +349,13 @@ static bool drm_sched_entity_add_dependency_cb(struct drm_sched_entity *entity) 
	struct dma_fence * fence = entity->dependency;

	struct drm_sched_fence *s_fence;



	if (fence->context == entity->fence_context) {

		/* We can ignore fences from ourself */

	if (fence->context == entity->fence_context ||

            fence->context == entity->fence_context + 1) {

                /*

                 * Fence is a scheduled/finished fence from a job

                 * which belongs to the same entity, we can ignore

                 * fences from ourself

                 */

		dma_fence_put(entity->dependency);

		return false;

	}