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drm/sched: Re-queue run job worker when drm_sched_entity_pop_job() returns NULL

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Rather then loop over entities until one with a ready job is found,
re-queue the run job worker when drm_sched_entity_pop_job() returns NULL.

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Fixes: 66dbd9004a ("drm/sched: Drain all entities in DRM sched run job worker")
Reviewed-by: Luben Tuikov <ltuikov89@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240130030413.2031009-1-matthew.brost@intel.com
This commit is contained in:
Matthew Brost 2024-01-29 19:04:13 -08:00 committed by Dave Airlie
parent 54be6c6c5a
commit d0399da9fb
1 changed files with 9 additions and 6 deletions
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15
drivers/gpu/drm/scheduler/sched_main.c
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@ -1178,21 +1178,24 @@ static void drm_sched_run_job_work(struct work_struct *w)
struct drm_sched_entity *entity;
struct dma_fence *fence;
struct drm_sched_fence *s_fence;
struct drm_sched_job *sched_job = NULL;
struct drm_sched_job *sched_job;
int r;
if (READ_ONCE(sched->pause_submit))
return;
/* Find entity with a ready job */
while (!sched_job && (entity = drm_sched_select_entity(sched))) {
sched_job = drm_sched_entity_pop_job(entity);
if (!sched_job)
complete_all(&entity->entity_idle);
}
entity = drm_sched_select_entity(sched);
if (!entity)
return; /* No more work */
sched_job = drm_sched_entity_pop_job(entity);
if (!sched_job) {
complete_all(&entity->entity_idle);
drm_sched_run_job_queue(sched);
return;
}
s_fence = sched_job->s_fence;
atomic_add(sched_job->credits, &sched->credit_count);