Lines Matching full:entity
37 * drm_sched_entity_init - Init a context entity used by scheduler when
40 * @entity: scheduler entity to init
41 * @priority: priority of the entity
43 * entity can be submitted
48 * Note that the &sched_list must have at least one element to schedule the entity.
54 * An entity is cleaned up by callind drm_sched_entity_fini(). See also
59 int drm_sched_entity_init(struct drm_sched_entity *entity, in drm_sched_entity_init() argument
65 if (!(entity && sched_list && (num_sched_list == 0 || sched_list[0]))) in drm_sched_entity_init()
68 memset(entity, 0, sizeof(struct drm_sched_entity)); in drm_sched_entity_init()
69 INIT_LIST_HEAD(&entity->list); in drm_sched_entity_init()
70 entity->rq = NULL; in drm_sched_entity_init()
71 entity->guilty = guilty; in drm_sched_entity_init()
72 entity->num_sched_list = num_sched_list; in drm_sched_entity_init()
73 entity->priority = priority; in drm_sched_entity_init()
74 entity->sched_list = num_sched_list > 1 ? sched_list : NULL; in drm_sched_entity_init()
75 RCU_INIT_POINTER(entity->last_scheduled, NULL); in drm_sched_entity_init()
76 RB_CLEAR_NODE(&entity->rb_tree_node); in drm_sched_entity_init()
79 entity->rq = &sched_list[0]->sched_rq[entity->priority]; in drm_sched_entity_init()
81 init_completion(&entity->entity_idle); in drm_sched_entity_init()
84 complete_all(&entity->entity_idle); in drm_sched_entity_init()
86 spin_lock_init(&entity->rq_lock); in drm_sched_entity_init()
87 spsc_queue_init(&entity->job_queue); in drm_sched_entity_init()
89 atomic_set(&entity->fence_seq, 0); in drm_sched_entity_init()
90 entity->fence_context = dma_fence_context_alloc(2); in drm_sched_entity_init()
97 * drm_sched_entity_modify_sched - Modify sched of an entity
98 * @entity: scheduler entity to init
100 * existing entity->sched_list
103 * Note that this must be called under the same common lock for @entity as
106 * can be pushed to @entity.
108 void drm_sched_entity_modify_sched(struct drm_sched_entity *entity, in drm_sched_entity_modify_sched() argument
114 spin_lock(&entity->rq_lock); in drm_sched_entity_modify_sched()
115 entity->sched_list = sched_list; in drm_sched_entity_modify_sched()
116 entity->num_sched_list = num_sched_list; in drm_sched_entity_modify_sched()
117 spin_unlock(&entity->rq_lock); in drm_sched_entity_modify_sched()
121 static bool drm_sched_entity_is_idle(struct drm_sched_entity *entity) in drm_sched_entity_is_idle() argument
125 if (list_empty(&entity->list) || in drm_sched_entity_is_idle()
126 spsc_queue_count(&entity->job_queue) == 0 || in drm_sched_entity_is_idle()
127 entity->stopped) in drm_sched_entity_is_idle()
133 /* Return true if entity could provide a job. */
134 bool drm_sched_entity_is_ready(struct drm_sched_entity *entity) in drm_sched_entity_is_ready() argument
136 if (spsc_queue_peek(&entity->job_queue) == NULL) in drm_sched_entity_is_ready()
139 if (READ_ONCE(entity->dependency)) in drm_sched_entity_is_ready()
147 * @entity: scheduler entity to check
152 int drm_sched_entity_error(struct drm_sched_entity *entity) in drm_sched_entity_error() argument
158 fence = rcu_dereference(entity->last_scheduled); in drm_sched_entity_error()
176 /* Signal the scheduler finished fence when the entity in question is killed. */
217 /* Remove the entity from the scheduler and kill all pending jobs */
218 static void drm_sched_entity_kill(struct drm_sched_entity *entity) in drm_sched_entity_kill() argument
223 if (!entity->rq) in drm_sched_entity_kill()
226 spin_lock(&entity->rq_lock); in drm_sched_entity_kill()
227 entity->stopped = true; in drm_sched_entity_kill()
228 drm_sched_rq_remove_entity(entity->rq, entity); in drm_sched_entity_kill()
229 spin_unlock(&entity->rq_lock); in drm_sched_entity_kill()
231 /* Make sure this entity is not used by the scheduler at the moment */ in drm_sched_entity_kill()
232 wait_for_completion(&entity->entity_idle); in drm_sched_entity_kill()
234 /* The entity is guaranteed to not be used by the scheduler */ in drm_sched_entity_kill()
235 prev = rcu_dereference_check(entity->last_scheduled, true); in drm_sched_entity_kill()
237 while ((job = to_drm_sched_job(spsc_queue_pop(&entity->job_queue)))) { in drm_sched_entity_kill()
258 * drm_sched_entity_flush - Flush a context entity
260 * @entity: scheduler entity
264 * waiting, removes the entity from the runqueue and returns an error when the
269 long drm_sched_entity_flush(struct drm_sched_entity *entity, long timeout) in drm_sched_entity_flush() argument
275 if (!entity->rq) in drm_sched_entity_flush()
278 sched = entity->rq->sched; in drm_sched_entity_flush()
287 drm_sched_entity_is_idle(entity), in drm_sched_entity_flush()
291 drm_sched_entity_is_idle(entity)); in drm_sched_entity_flush()
295 last_user = cmpxchg(&entity->last_user, current->group_leader, NULL); in drm_sched_entity_flush()
298 drm_sched_entity_kill(entity); in drm_sched_entity_flush()
305 * drm_sched_entity_fini - Destroy a context entity
307 * @entity: scheduler entity
309 * Cleanups up @entity which has been initialized by drm_sched_entity_init().
313 * the entity and signals all jobs with an error code if the process was killed.
315 void drm_sched_entity_fini(struct drm_sched_entity *entity) in drm_sched_entity_fini() argument
319 * them here. Also makes sure that the scheduler won't touch this entity in drm_sched_entity_fini()
322 drm_sched_entity_kill(entity); in drm_sched_entity_fini()
324 if (entity->dependency) { in drm_sched_entity_fini()
325 dma_fence_remove_callback(entity->dependency, &entity->cb); in drm_sched_entity_fini()
326 dma_fence_put(entity->dependency); in drm_sched_entity_fini()
327 entity->dependency = NULL; in drm_sched_entity_fini()
330 dma_fence_put(rcu_dereference_check(entity->last_scheduled, true)); in drm_sched_entity_fini()
331 RCU_INIT_POINTER(entity->last_scheduled, NULL); in drm_sched_entity_fini()
336 * drm_sched_entity_destroy - Destroy a context entity
337 * @entity: scheduler entity
342 void drm_sched_entity_destroy(struct drm_sched_entity *entity) in drm_sched_entity_destroy() argument
344 drm_sched_entity_flush(entity, MAX_WAIT_SCHED_ENTITY_Q_EMPTY); in drm_sched_entity_destroy()
345 drm_sched_entity_fini(entity); in drm_sched_entity_destroy()
350 * drm_sched_entity_wakeup - callback to clear the entity's dependency and
356 struct drm_sched_entity *entity = in drm_sched_entity_wakeup() local
359 entity->dependency = NULL; in drm_sched_entity_wakeup()
361 drm_sched_wakeup_if_can_queue(entity->rq->sched); in drm_sched_entity_wakeup()
365 * drm_sched_entity_set_priority - Sets priority of the entity
367 * @entity: scheduler entity
370 * Update the priority of runqueus used for the entity.
372 void drm_sched_entity_set_priority(struct drm_sched_entity *entity, in drm_sched_entity_set_priority() argument
375 spin_lock(&entity->rq_lock); in drm_sched_entity_set_priority()
376 entity->priority = priority; in drm_sched_entity_set_priority()
377 spin_unlock(&entity->rq_lock); in drm_sched_entity_set_priority()
382 * Add a callback to the current dependency of the entity to wake up the
383 * scheduler when the entity becomes available.
385 static bool drm_sched_entity_add_dependency_cb(struct drm_sched_entity *entity) in drm_sched_entity_add_dependency_cb() argument
387 struct drm_gpu_scheduler *sched = entity->rq->sched; in drm_sched_entity_add_dependency_cb()
388 struct dma_fence *fence = entity->dependency; in drm_sched_entity_add_dependency_cb()
391 if (fence->context == entity->fence_context || in drm_sched_entity_add_dependency_cb()
392 fence->context == entity->fence_context + 1) { in drm_sched_entity_add_dependency_cb()
395 * which belongs to the same entity, we can ignore in drm_sched_entity_add_dependency_cb()
398 dma_fence_put(entity->dependency); in drm_sched_entity_add_dependency_cb()
411 dma_fence_put(entity->dependency); in drm_sched_entity_add_dependency_cb()
412 entity->dependency = fence; in drm_sched_entity_add_dependency_cb()
415 if (!dma_fence_add_callback(entity->dependency, &entity->cb, in drm_sched_entity_add_dependency_cb()
419 dma_fence_put(entity->dependency); in drm_sched_entity_add_dependency_cb()
425 struct drm_sched_entity *entity) in drm_sched_job_dependency() argument
440 return job->sched->ops->prepare_job(job, entity); in drm_sched_job_dependency()
445 struct drm_sched_job *drm_sched_entity_pop_job(struct drm_sched_entity *entity) in drm_sched_entity_pop_job() argument
449 sched_job = to_drm_sched_job(spsc_queue_peek(&entity->job_queue)); in drm_sched_entity_pop_job()
453 while ((entity->dependency = in drm_sched_entity_pop_job()
454 drm_sched_job_dependency(sched_job, entity))) { in drm_sched_entity_pop_job()
455 trace_drm_sched_job_wait_dep(sched_job, entity->dependency); in drm_sched_entity_pop_job()
457 if (drm_sched_entity_add_dependency_cb(entity)) in drm_sched_entity_pop_job()
461 /* skip jobs from entity that marked guilty */ in drm_sched_entity_pop_job()
462 if (entity->guilty && atomic_read(entity->guilty)) in drm_sched_entity_pop_job()
465 dma_fence_put(rcu_dereference_check(entity->last_scheduled, true)); in drm_sched_entity_pop_job()
466 rcu_assign_pointer(entity->last_scheduled, in drm_sched_entity_pop_job()
476 spsc_queue_pop(&entity->job_queue); in drm_sched_entity_pop_job()
479 * Update the entity's location in the min heap according to in drm_sched_entity_pop_job()
485 next = to_drm_sched_job(spsc_queue_peek(&entity->job_queue)); in drm_sched_entity_pop_job()
487 drm_sched_rq_update_fifo(entity, next->submit_ts); in drm_sched_entity_pop_job()
491 * removing the job from the entities queue, set the jobs entity pointer in drm_sched_entity_pop_job()
492 * to NULL to prevent any future access of the entity through this job. in drm_sched_entity_pop_job()
494 sched_job->entity = NULL; in drm_sched_entity_pop_job()
499 void drm_sched_entity_select_rq(struct drm_sched_entity *entity) in drm_sched_entity_select_rq() argument
506 if (!entity->sched_list) in drm_sched_entity_select_rq()
510 if (spsc_queue_count(&entity->job_queue)) in drm_sched_entity_select_rq()
521 fence = rcu_dereference_check(entity->last_scheduled, true); in drm_sched_entity_select_rq()
527 spin_lock(&entity->rq_lock); in drm_sched_entity_select_rq()
528 sched = drm_sched_pick_best(entity->sched_list, entity->num_sched_list); in drm_sched_entity_select_rq()
529 rq = sched ? &sched->sched_rq[entity->priority] : NULL; in drm_sched_entity_select_rq()
530 if (rq != entity->rq) { in drm_sched_entity_select_rq()
531 drm_sched_rq_remove_entity(entity->rq, entity); in drm_sched_entity_select_rq()
532 entity->rq = rq; in drm_sched_entity_select_rq()
534 spin_unlock(&entity->rq_lock); in drm_sched_entity_select_rq()
536 if (entity->num_sched_list == 1) in drm_sched_entity_select_rq()
537 entity->sched_list = NULL; in drm_sched_entity_select_rq()
541 * drm_sched_entity_push_job - Submit a job to the entity's job queue
553 struct drm_sched_entity *entity = sched_job->entity; in drm_sched_entity_push_job() local
557 trace_drm_sched_job(sched_job, entity); in drm_sched_entity_push_job()
558 atomic_inc(entity->rq->sched->score); in drm_sched_entity_push_job()
559 WRITE_ONCE(entity->last_user, current->group_leader); in drm_sched_entity_push_job()
562 * After the sched_job is pushed into the entity queue, it may be in drm_sched_entity_push_job()
567 first = spsc_queue_push(&entity->job_queue, &sched_job->queue_node); in drm_sched_entity_push_job()
571 /* Add the entity to the run queue */ in drm_sched_entity_push_job()
572 spin_lock(&entity->rq_lock); in drm_sched_entity_push_job()
573 if (entity->stopped) { in drm_sched_entity_push_job()
574 spin_unlock(&entity->rq_lock); in drm_sched_entity_push_job()
576 DRM_ERROR("Trying to push to a killed entity\n"); in drm_sched_entity_push_job()
580 drm_sched_rq_add_entity(entity->rq, entity); in drm_sched_entity_push_job()
581 spin_unlock(&entity->rq_lock); in drm_sched_entity_push_job()
584 drm_sched_rq_update_fifo(entity, submit_ts); in drm_sched_entity_push_job()
586 drm_sched_wakeup_if_can_queue(entity->rq->sched); in drm_sched_entity_push_job()