[PATCH v4 08/10] drm/sched: Submit job before starting TDR

Matthew Brost matthew.brost at intel.com
Tue Sep 19 05:01:53 UTC 2023


If the TDR is set to a value, it can fire before a job is submitted in
drm_sched_main. The job should be always be submitted before the TDR
fires, fix this ordering.

v2:
  - Add to pending list before run_job, start TDR after (Luben, Boris)

Signed-off-by: Matthew Brost <matthew.brost at intel.com>
---
 drivers/gpu/drm/scheduler/sched_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c
index a5cc9b6c2faa..e8a3e6033f66 100644
--- a/drivers/gpu/drm/scheduler/sched_main.c
+++ b/drivers/gpu/drm/scheduler/sched_main.c
@@ -517,7 +517,6 @@ static void drm_sched_job_begin(struct drm_sched_job *s_job)
 
 	spin_lock(&sched->job_list_lock);
 	list_add_tail(&s_job->list, &sched->pending_list);
-	drm_sched_start_timeout(sched);
 	spin_unlock(&sched->job_list_lock);
 }
 
@@ -1138,6 +1137,7 @@ static void drm_sched_run_job_work(struct work_struct *w)
 	fence = sched->ops->run_job(sched_job);
 	complete_all(&entity->entity_idle);
 	drm_sched_fence_scheduled(s_fence, fence);
+	drm_sched_start_timeout_unlocked(sched);
 
 	if (!IS_ERR_OR_NULL(fence)) {
 		/* Drop for original kref_init of the fence */
-- 
2.34.1



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