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 calling 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()
75 * It's perfectly valid to initialize an entity without having a valid in drm_sched_entity_init()
79 entity->sched_list = num_sched_list > 1 ? sched_list : NULL; in drm_sched_entity_init()
80 RCU_INIT_POINTER(entity->last_scheduled, NULL); in drm_sched_entity_init()
81 RB_CLEAR_NODE(&entity->rb_tree_node); in drm_sched_entity_init()
90 /* The "priority" of an entity cannot exceed the number of run-queues of a in drm_sched_entity_init()
94 if (entity->priority >= sched_list[0]->num_rqs) { in drm_sched_entity_init()
95 drm_err(sched_list[0], "entity with out-of-bounds priority:%u num_rqs:%u\n", in drm_sched_entity_init()
96 entity->priority, sched_list[0]->num_rqs); in drm_sched_entity_init()
97 entity->priority = max_t(s32, (s32) sched_list[0]->num_rqs - 1, in drm_sched_entity_init()
100 entity->rq = sched_list[0]->sched_rq[entity->priority]; in drm_sched_entity_init()
103 init_completion(&entity->entity_idle); in drm_sched_entity_init()
106 complete_all(&entity->entity_idle); in drm_sched_entity_init()
108 spin_lock_init(&entity->lock); in drm_sched_entity_init()
109 spsc_queue_init(&entity->job_queue); in drm_sched_entity_init()
111 atomic_set(&entity->fence_seq, 0); in drm_sched_entity_init()
112 entity->fence_context = dma_fence_context_alloc(2); in drm_sched_entity_init()
119 * drm_sched_entity_modify_sched - Modify sched of an entity
120 * @entity: scheduler entity to init
122 * existing entity->sched_list
125 * Note that this must be called under the same common lock for @entity as
128 * can be pushed to @entity.
130 void drm_sched_entity_modify_sched(struct drm_sched_entity *entity, in drm_sched_entity_modify_sched() argument
136 spin_lock(&entity->lock); in drm_sched_entity_modify_sched()
137 entity->sched_list = sched_list; in drm_sched_entity_modify_sched()
138 entity->num_sched_list = num_sched_list; in drm_sched_entity_modify_sched()
139 spin_unlock(&entity->lock); in drm_sched_entity_modify_sched()
143 static bool drm_sched_entity_is_idle(struct drm_sched_entity *entity) in drm_sched_entity_is_idle() argument
147 if (list_empty(&entity->list) || in drm_sched_entity_is_idle()
148 spsc_queue_count(&entity->job_queue) == 0 || in drm_sched_entity_is_idle()
149 entity->stopped) in drm_sched_entity_is_idle()
155 /* Return true if entity could provide a job. */
156 bool drm_sched_entity_is_ready(struct drm_sched_entity *entity) in drm_sched_entity_is_ready() argument
158 if (spsc_queue_peek(&entity->job_queue) == NULL) in drm_sched_entity_is_ready()
161 if (READ_ONCE(entity->dependency)) in drm_sched_entity_is_ready()
169 * @entity: scheduler entity to check
174 int drm_sched_entity_error(struct drm_sched_entity *entity) in drm_sched_entity_error() argument
180 fence = rcu_dereference(entity->last_scheduled); in drm_sched_entity_error()
197 /* Signal the scheduler finished fence when the entity in question is killed. */
238 /* Remove the entity from the scheduler and kill all pending jobs */
239 static void drm_sched_entity_kill(struct drm_sched_entity *entity) in drm_sched_entity_kill() argument
244 if (!entity->rq) in drm_sched_entity_kill()
247 spin_lock(&entity->lock); in drm_sched_entity_kill()
248 entity->stopped = true; in drm_sched_entity_kill()
249 drm_sched_rq_remove_entity(entity->rq, entity); in drm_sched_entity_kill()
250 spin_unlock(&entity->lock); in drm_sched_entity_kill()
252 /* Make sure this entity is not used by the scheduler at the moment */ in drm_sched_entity_kill()
253 wait_for_completion(&entity->entity_idle); in drm_sched_entity_kill()
255 /* The entity is guaranteed to not be used by the scheduler */ in drm_sched_entity_kill()
256 prev = rcu_dereference_check(entity->last_scheduled, true); in drm_sched_entity_kill()
258 while ((job = to_drm_sched_job(spsc_queue_pop(&entity->job_queue)))) { in drm_sched_entity_kill()
279 * drm_sched_entity_flush - Flush a context entity
281 * @entity: scheduler entity
285 * waiting, removes the entity from the runqueue and returns an error when the
290 long drm_sched_entity_flush(struct drm_sched_entity *entity, long timeout) in drm_sched_entity_flush() argument
296 if (!entity->rq) in drm_sched_entity_flush()
299 sched = entity->rq->sched; in drm_sched_entity_flush()
308 drm_sched_entity_is_idle(entity), in drm_sched_entity_flush()
312 drm_sched_entity_is_idle(entity)); in drm_sched_entity_flush()
316 last_user = cmpxchg(&entity->last_user, current->group_leader, NULL); in drm_sched_entity_flush()
319 drm_sched_entity_kill(entity); in drm_sched_entity_flush()
326 * drm_sched_entity_fini - Destroy a context entity
328 * @entity: scheduler entity
330 * Cleanups up @entity which has been initialized by drm_sched_entity_init().
334 * the entity and signals all jobs with an error code if the process was killed.
336 void drm_sched_entity_fini(struct drm_sched_entity *entity) in drm_sched_entity_fini() argument
340 * them here. Also makes sure that the scheduler won't touch this entity in drm_sched_entity_fini()
343 drm_sched_entity_kill(entity); in drm_sched_entity_fini()
345 if (entity->dependency) { in drm_sched_entity_fini()
346 dma_fence_remove_callback(entity->dependency, &entity->cb); in drm_sched_entity_fini()
347 dma_fence_put(entity->dependency); in drm_sched_entity_fini()
348 entity->dependency = NULL; in drm_sched_entity_fini()
351 dma_fence_put(rcu_dereference_check(entity->last_scheduled, true)); in drm_sched_entity_fini()
352 RCU_INIT_POINTER(entity->last_scheduled, NULL); in drm_sched_entity_fini()
357 * drm_sched_entity_destroy - Destroy a context entity
358 * @entity: scheduler entity
363 void drm_sched_entity_destroy(struct drm_sched_entity *entity) in drm_sched_entity_destroy() argument
365 drm_sched_entity_flush(entity, MAX_WAIT_SCHED_ENTITY_Q_EMPTY); in drm_sched_entity_destroy()
366 drm_sched_entity_fini(entity); in drm_sched_entity_destroy()
374 struct drm_sched_entity *entity = in drm_sched_entity_clear_dep() local
377 entity->dependency = NULL; in drm_sched_entity_clear_dep()
382 * drm_sched_entity_wakeup - callback to clear the entity's dependency and
388 struct drm_sched_entity *entity = in drm_sched_entity_wakeup() local
392 drm_sched_wakeup(entity->rq->sched); in drm_sched_entity_wakeup()
396 * drm_sched_entity_set_priority - Sets priority of the entity
398 * @entity: scheduler entity
401 * Update the priority of runqueues used for the entity.
403 void drm_sched_entity_set_priority(struct drm_sched_entity *entity, in drm_sched_entity_set_priority() argument
406 spin_lock(&entity->lock); in drm_sched_entity_set_priority()
407 entity->priority = priority; in drm_sched_entity_set_priority()
408 spin_unlock(&entity->lock); in drm_sched_entity_set_priority()
413 * Add a callback to the current dependency of the entity to wake up the
414 * scheduler when the entity becomes available.
416 static bool drm_sched_entity_add_dependency_cb(struct drm_sched_entity *entity) in drm_sched_entity_add_dependency_cb() argument
418 struct drm_gpu_scheduler *sched = entity->rq->sched; in drm_sched_entity_add_dependency_cb()
419 struct dma_fence *fence = entity->dependency; in drm_sched_entity_add_dependency_cb()
422 if (fence->context == entity->fence_context || in drm_sched_entity_add_dependency_cb()
423 fence->context == entity->fence_context + 1) { in drm_sched_entity_add_dependency_cb()
426 * which belongs to the same entity, we can ignore in drm_sched_entity_add_dependency_cb()
429 dma_fence_put(entity->dependency); in drm_sched_entity_add_dependency_cb()
442 dma_fence_put(entity->dependency); in drm_sched_entity_add_dependency_cb()
443 entity->dependency = fence; in drm_sched_entity_add_dependency_cb()
444 if (!dma_fence_add_callback(fence, &entity->cb, in drm_sched_entity_add_dependency_cb()
453 if (!dma_fence_add_callback(entity->dependency, &entity->cb, in drm_sched_entity_add_dependency_cb()
457 dma_fence_put(entity->dependency); in drm_sched_entity_add_dependency_cb()
463 struct drm_sched_entity *entity) in drm_sched_job_dependency() argument
478 return job->sched->ops->prepare_job(job, entity); in drm_sched_job_dependency()
483 struct drm_sched_job *drm_sched_entity_pop_job(struct drm_sched_entity *entity) in drm_sched_entity_pop_job() argument
487 sched_job = to_drm_sched_job(spsc_queue_peek(&entity->job_queue)); in drm_sched_entity_pop_job()
491 while ((entity->dependency = in drm_sched_entity_pop_job()
492 drm_sched_job_dependency(sched_job, entity))) { in drm_sched_entity_pop_job()
493 trace_drm_sched_job_wait_dep(sched_job, entity->dependency); in drm_sched_entity_pop_job()
495 if (drm_sched_entity_add_dependency_cb(entity)) in drm_sched_entity_pop_job()
499 /* skip jobs from entity that marked guilty */ in drm_sched_entity_pop_job()
500 if (entity->guilty && atomic_read(entity->guilty)) in drm_sched_entity_pop_job()
503 dma_fence_put(rcu_dereference_check(entity->last_scheduled, true)); in drm_sched_entity_pop_job()
504 rcu_assign_pointer(entity->last_scheduled, in drm_sched_entity_pop_job()
514 spsc_queue_pop(&entity->job_queue); in drm_sched_entity_pop_job()
517 * Update the entity's location in the min heap according to in drm_sched_entity_pop_job()
523 next = to_drm_sched_job(spsc_queue_peek(&entity->job_queue)); in drm_sched_entity_pop_job()
527 spin_lock(&entity->lock); in drm_sched_entity_pop_job()
528 rq = entity->rq; in drm_sched_entity_pop_job()
530 drm_sched_rq_update_fifo_locked(entity, rq, in drm_sched_entity_pop_job()
533 spin_unlock(&entity->lock); in drm_sched_entity_pop_job()
538 * removing the job from the entities queue, set the jobs entity pointer in drm_sched_entity_pop_job()
539 * to NULL to prevent any future access of the entity through this job. in drm_sched_entity_pop_job()
541 sched_job->entity = NULL; in drm_sched_entity_pop_job()
546 void drm_sched_entity_select_rq(struct drm_sched_entity *entity) in drm_sched_entity_select_rq() argument
553 if (!entity->sched_list) in drm_sched_entity_select_rq()
557 if (spsc_queue_count(&entity->job_queue)) in drm_sched_entity_select_rq()
568 fence = rcu_dereference_check(entity->last_scheduled, true); in drm_sched_entity_select_rq()
574 spin_lock(&entity->lock); in drm_sched_entity_select_rq()
575 sched = drm_sched_pick_best(entity->sched_list, entity->num_sched_list); in drm_sched_entity_select_rq()
576 rq = sched ? sched->sched_rq[entity->priority] : NULL; in drm_sched_entity_select_rq()
577 if (rq != entity->rq) { in drm_sched_entity_select_rq()
578 drm_sched_rq_remove_entity(entity->rq, entity); in drm_sched_entity_select_rq()
579 entity->rq = rq; in drm_sched_entity_select_rq()
581 spin_unlock(&entity->lock); in drm_sched_entity_select_rq()
583 if (entity->num_sched_list == 1) in drm_sched_entity_select_rq()
584 entity->sched_list = NULL; in drm_sched_entity_select_rq()
588 * drm_sched_entity_push_job - Submit a job to the entity's job queue
598 struct drm_sched_entity *entity = sched_job->entity; in drm_sched_entity_push_job() local
602 trace_drm_sched_job(sched_job, entity); in drm_sched_entity_push_job()
603 atomic_inc(entity->rq->sched->score); in drm_sched_entity_push_job()
604 WRITE_ONCE(entity->last_user, current->group_leader); in drm_sched_entity_push_job()
607 * After the sched_job is pushed into the entity queue, it may be in drm_sched_entity_push_job()
612 first = spsc_queue_push(&entity->job_queue, &sched_job->queue_node); in drm_sched_entity_push_job()
619 /* Add the entity to the run queue */ in drm_sched_entity_push_job()
620 spin_lock(&entity->lock); in drm_sched_entity_push_job()
621 if (entity->stopped) { in drm_sched_entity_push_job()
622 spin_unlock(&entity->lock); in drm_sched_entity_push_job()
624 DRM_ERROR("Trying to push to a killed entity\n"); in drm_sched_entity_push_job()
628 rq = entity->rq; in drm_sched_entity_push_job()
632 drm_sched_rq_add_entity(rq, entity); in drm_sched_entity_push_job()
635 drm_sched_rq_update_fifo_locked(entity, rq, submit_ts); in drm_sched_entity_push_job()
638 spin_unlock(&entity->lock); in drm_sched_entity_push_job()