diff options
| -rw-r--r-- | drivers/gpu/drm/scheduler/sched_entity.c | 9 | ||||
| -rw-r--r-- | drivers/gpu/drm/scheduler/sched_main.c | 6 | ||||
| -rw-r--r-- | include/drm/gpu_scheduler.h | 3 |
3 files changed, 17 insertions, 1 deletions
diff --git a/drivers/gpu/drm/scheduler/sched_entity.c b/drivers/gpu/drm/scheduler/sched_entity.c index 3e22a54a99c2..ba54c30a466e 100644 --- a/drivers/gpu/drm/scheduler/sched_entity.c +++ b/drivers/gpu/drm/scheduler/sched_entity.c @@ -130,7 +130,14 @@ drm_sched_entity_get_free_sched(struct drm_sched_entity *entity) int i; for (i = 0; i < entity->num_rq_list; ++i) { - num_jobs = atomic_read(&entity->rq_list[i]->sched->num_jobs); + struct drm_gpu_scheduler *sched = entity->rq_list[i]->sched; + + if (!entity->rq_list[i]->sched->ready) { + DRM_WARN("sched%s is not ready, skipping", sched->name); + continue; + } + + num_jobs = atomic_read(&sched->num_jobs); if (num_jobs < min_jobs) { min_jobs = num_jobs; rq = entity->rq_list[i]; diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c index 63b997d9c562..6b2fd49334f7 100644 --- a/drivers/gpu/drm/scheduler/sched_main.c +++ b/drivers/gpu/drm/scheduler/sched_main.c @@ -420,6 +420,9 @@ int drm_sched_job_init(struct drm_sched_job *job, struct drm_gpu_scheduler *sched; drm_sched_entity_select_rq(entity); + if (!entity->rq) + return -ENOENT; + sched = entity->rq->sched; job->sched = sched; @@ -633,6 +636,7 @@ int drm_sched_init(struct drm_gpu_scheduler *sched, return PTR_ERR(sched->thread); } + sched->ready = true; return 0; } EXPORT_SYMBOL(drm_sched_init); @@ -648,5 +652,7 @@ void drm_sched_fini(struct drm_gpu_scheduler *sched) { if (sched->thread) kthread_stop(sched->thread); + + sched->ready = false; } EXPORT_SYMBOL(drm_sched_fini); diff --git a/include/drm/gpu_scheduler.h b/include/drm/gpu_scheduler.h index 0684dcd99c0f..4ae192a21c3f 100644 --- a/include/drm/gpu_scheduler.h +++ b/include/drm/gpu_scheduler.h @@ -264,6 +264,7 @@ struct drm_sched_backend_ops { * @hang_limit: once the hangs by a job crosses this limit then it is marked * guilty and it will be considered for scheduling further. * @num_jobs: the number of jobs in queue in the scheduler + * @ready: marks if the underlying HW is ready to work * * One scheduler is implemented for each hardware ring. */ @@ -283,12 +284,14 @@ struct drm_gpu_scheduler { spinlock_t job_list_lock; int hang_limit; atomic_t num_jobs; + bool ready; }; int drm_sched_init(struct drm_gpu_scheduler *sched, const struct drm_sched_backend_ops *ops, uint32_t hw_submission, unsigned hang_limit, long timeout, const char *name); + void drm_sched_fini(struct drm_gpu_scheduler *sched); int drm_sched_job_init(struct drm_sched_job *job, struct drm_sched_entity *entity, |