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()
84 /* The "priority" of an entity cannot exceed the number of run-queues of a in drm_sched_entity_init()
88 if (entity->priority >= sched_list[0]->num_rqs) { in drm_sched_entity_init()
89 drm_err(sched_list[0], "entity with out-of-bounds priority:%u num_rqs:%u\n", in drm_sched_entity_init()
90 entity->priority, sched_list[0]->num_rqs); in drm_sched_entity_init()
91 entity->priority = max_t(s32, (s32) sched_list[0]->num_rqs - 1, in drm_sched_entity_init()
94 entity->rq = sched_list[0]->sched_rq[entity->priority]; in drm_sched_entity_init()
97 init_completion(&entity->entity_idle); in drm_sched_entity_init()
100 complete_all(&entity->entity_idle); in drm_sched_entity_init()
102 spin_lock_init(&entity->rq_lock); in drm_sched_entity_init()
103 spsc_queue_init(&entity->job_queue); in drm_sched_entity_init()
105 atomic_set(&entity->fence_seq, 0); in drm_sched_entity_init()
106 entity->fence_context = dma_fence_context_alloc(2); in drm_sched_entity_init()
113 * drm_sched_entity_modify_sched - Modify sched of an entity
114 * @entity: scheduler entity to init
116 * existing entity->sched_list
119 * Note that this must be called under the same common lock for @entity as
122 * can be pushed to @entity.
124 void drm_sched_entity_modify_sched(struct drm_sched_entity *entity, in drm_sched_entity_modify_sched() argument
130 entity->sched_list = sched_list; in drm_sched_entity_modify_sched()
131 entity->num_sched_list = num_sched_list; in drm_sched_entity_modify_sched()
135 static bool drm_sched_entity_is_idle(struct drm_sched_entity *entity) in drm_sched_entity_is_idle() argument
139 if (list_empty(&entity->list) || in drm_sched_entity_is_idle()
140 spsc_queue_count(&entity->job_queue) == 0 || in drm_sched_entity_is_idle()
141 entity->stopped) in drm_sched_entity_is_idle()
147 /* Return true if entity could provide a job. */
148 bool drm_sched_entity_is_ready(struct drm_sched_entity *entity) in drm_sched_entity_is_ready() argument
150 if (spsc_queue_peek(&entity->job_queue) == NULL) in drm_sched_entity_is_ready()
153 if (READ_ONCE(entity->dependency)) in drm_sched_entity_is_ready()
161 * @entity: scheduler entity to check
166 int drm_sched_entity_error(struct drm_sched_entity *entity) in drm_sched_entity_error() argument
172 fence = rcu_dereference(entity->last_scheduled); in drm_sched_entity_error()
189 /* Signal the scheduler finished fence when the entity in question is killed. */
230 /* Remove the entity from the scheduler and kill all pending jobs */
231 static void drm_sched_entity_kill(struct drm_sched_entity *entity) in drm_sched_entity_kill() argument
236 if (!entity->rq) in drm_sched_entity_kill()
239 spin_lock(&entity->rq_lock); in drm_sched_entity_kill()
240 entity->stopped = true; in drm_sched_entity_kill()
241 drm_sched_rq_remove_entity(entity->rq, entity); in drm_sched_entity_kill()
242 spin_unlock(&entity->rq_lock); in drm_sched_entity_kill()
244 /* Make sure this entity is not used by the scheduler at the moment */ in drm_sched_entity_kill()
245 wait_for_completion(&entity->entity_idle); in drm_sched_entity_kill()
247 /* The entity is guaranteed to not be used by the scheduler */ in drm_sched_entity_kill()
248 prev = rcu_dereference_check(entity->last_scheduled, true); in drm_sched_entity_kill()
250 while ((job = to_drm_sched_job(spsc_queue_pop(&entity->job_queue)))) { in drm_sched_entity_kill()
264 * drm_sched_entity_flush - Flush a context entity
266 * @entity: scheduler entity
270 * waiting, removes the entity from the runqueue and returns an error when the
275 long drm_sched_entity_flush(struct drm_sched_entity *entity, long timeout) in drm_sched_entity_flush() argument
281 if (!entity->rq) in drm_sched_entity_flush()
284 sched = entity->rq->sched; in drm_sched_entity_flush()
293 drm_sched_entity_is_idle(entity), in drm_sched_entity_flush()
297 drm_sched_entity_is_idle(entity)); in drm_sched_entity_flush()
301 last_user = cmpxchg(&entity->last_user, current->group_leader, NULL); in drm_sched_entity_flush()
304 drm_sched_entity_kill(entity); in drm_sched_entity_flush()
311 * drm_sched_entity_fini - Destroy a context entity
313 * @entity: scheduler entity
315 * Cleanups up @entity which has been initialized by drm_sched_entity_init().
319 * the entity and signals all jobs with an error code if the process was killed.
321 void drm_sched_entity_fini(struct drm_sched_entity *entity) in drm_sched_entity_fini() argument
325 * them here. Also makes sure that the scheduler won't touch this entity in drm_sched_entity_fini()
328 drm_sched_entity_kill(entity); in drm_sched_entity_fini()
330 if (entity->dependency) { in drm_sched_entity_fini()
331 dma_fence_remove_callback(entity->dependency, &entity->cb); in drm_sched_entity_fini()
332 dma_fence_put(entity->dependency); in drm_sched_entity_fini()
333 entity->dependency = NULL; in drm_sched_entity_fini()
336 dma_fence_put(rcu_dereference_check(entity->last_scheduled, true)); in drm_sched_entity_fini()
337 RCU_INIT_POINTER(entity->last_scheduled, NULL); in drm_sched_entity_fini()
342 * drm_sched_entity_destroy - Destroy a context entity
343 * @entity: scheduler entity
348 void drm_sched_entity_destroy(struct drm_sched_entity *entity) in drm_sched_entity_destroy() argument
350 drm_sched_entity_flush(entity, MAX_WAIT_SCHED_ENTITY_Q_EMPTY); in drm_sched_entity_destroy()
351 drm_sched_entity_fini(entity); in drm_sched_entity_destroy()
359 struct drm_sched_entity *entity = in drm_sched_entity_clear_dep() local
362 entity->dependency = NULL; in drm_sched_entity_clear_dep()
373 struct drm_sched_entity *entity = in drm_sched_entity_wakeup() local
377 drm_sched_wakeup(entity->rq->sched, entity); in drm_sched_entity_wakeup()
381 * drm_sched_entity_set_priority - Sets priority of the entity
383 * @entity: scheduler entity
386 * Update the priority of runqueus used for the entity.
388 void drm_sched_entity_set_priority(struct drm_sched_entity *entity, in drm_sched_entity_set_priority() argument
391 spin_lock(&entity->rq_lock); in drm_sched_entity_set_priority()
392 entity->priority = priority; in drm_sched_entity_set_priority()
393 spin_unlock(&entity->rq_lock); in drm_sched_entity_set_priority()
398 * Add a callback to the current dependency of the entity to wake up the
399 * scheduler when the entity becomes available.
401 static bool drm_sched_entity_add_dependency_cb(struct drm_sched_entity *entity) in drm_sched_entity_add_dependency_cb() argument
403 struct drm_gpu_scheduler *sched = entity->rq->sched; in drm_sched_entity_add_dependency_cb()
404 struct dma_fence *fence = entity->dependency; in drm_sched_entity_add_dependency_cb()
407 if (fence->context == entity->fence_context || in drm_sched_entity_add_dependency_cb()
408 fence->context == entity->fence_context + 1) { in drm_sched_entity_add_dependency_cb()
411 * which belongs to the same entity, we can ignore in drm_sched_entity_add_dependency_cb()
414 dma_fence_put(entity->dependency); in drm_sched_entity_add_dependency_cb()
427 dma_fence_put(entity->dependency); in drm_sched_entity_add_dependency_cb()
428 entity->dependency = fence; in drm_sched_entity_add_dependency_cb()
429 if (!dma_fence_add_callback(fence, &entity->cb, in drm_sched_entity_add_dependency_cb()
438 if (!dma_fence_add_callback(entity->dependency, &entity->cb, in drm_sched_entity_add_dependency_cb()
442 dma_fence_put(entity->dependency); in drm_sched_entity_add_dependency_cb()
448 struct drm_sched_entity *entity) in drm_sched_job_dependency() argument
463 return job->sched->ops->prepare_job(job, entity); in drm_sched_job_dependency()
468 struct drm_sched_job *drm_sched_entity_pop_job(struct drm_sched_entity *entity) in drm_sched_entity_pop_job() argument
472 sched_job = to_drm_sched_job(spsc_queue_peek(&entity->job_queue)); in drm_sched_entity_pop_job()
476 while ((entity->dependency = in drm_sched_entity_pop_job()
477 drm_sched_job_dependency(sched_job, entity))) { in drm_sched_entity_pop_job()
478 trace_drm_sched_job_wait_dep(sched_job, entity->dependency); in drm_sched_entity_pop_job()
480 if (drm_sched_entity_add_dependency_cb(entity)) in drm_sched_entity_pop_job()
484 /* skip jobs from entity that marked guilty */ in drm_sched_entity_pop_job()
485 if (entity->guilty && atomic_read(entity->guilty)) in drm_sched_entity_pop_job()
488 dma_fence_put(rcu_dereference_check(entity->last_scheduled, true)); in drm_sched_entity_pop_job()
489 rcu_assign_pointer(entity->last_scheduled, in drm_sched_entity_pop_job()
499 spsc_queue_pop(&entity->job_queue); in drm_sched_entity_pop_job()
502 * Update the entity's location in the min heap according to in drm_sched_entity_pop_job()
508 next = to_drm_sched_job(spsc_queue_peek(&entity->job_queue)); in drm_sched_entity_pop_job()
510 drm_sched_rq_update_fifo(entity, next->submit_ts); in drm_sched_entity_pop_job()
514 * removing the job from the entities queue, set the jobs entity pointer in drm_sched_entity_pop_job()
515 * to NULL to prevent any future access of the entity through this job. in drm_sched_entity_pop_job()
517 sched_job->entity = NULL; in drm_sched_entity_pop_job()
522 void drm_sched_entity_select_rq(struct drm_sched_entity *entity) in drm_sched_entity_select_rq() argument
529 if (!entity->sched_list) in drm_sched_entity_select_rq()
533 if (spsc_queue_count(&entity->job_queue)) in drm_sched_entity_select_rq()
544 fence = rcu_dereference_check(entity->last_scheduled, true); in drm_sched_entity_select_rq()
550 spin_lock(&entity->rq_lock); in drm_sched_entity_select_rq()
551 sched = drm_sched_pick_best(entity->sched_list, entity->num_sched_list); in drm_sched_entity_select_rq()
552 rq = sched ? sched->sched_rq[entity->priority] : NULL; in drm_sched_entity_select_rq()
553 if (rq != entity->rq) { in drm_sched_entity_select_rq()
554 drm_sched_rq_remove_entity(entity->rq, entity); in drm_sched_entity_select_rq()
555 entity->rq = rq; in drm_sched_entity_select_rq()
557 spin_unlock(&entity->rq_lock); in drm_sched_entity_select_rq()
559 if (entity->num_sched_list == 1) in drm_sched_entity_select_rq()
560 entity->sched_list = NULL; in drm_sched_entity_select_rq()
564 * drm_sched_entity_push_job - Submit a job to the entity's job queue
576 struct drm_sched_entity *entity = sched_job->entity; in drm_sched_entity_push_job() local
580 trace_drm_sched_job(sched_job, entity); in drm_sched_entity_push_job()
581 atomic_inc(entity->rq->sched->score); in drm_sched_entity_push_job()
582 WRITE_ONCE(entity->last_user, current->group_leader); in drm_sched_entity_push_job()
585 * After the sched_job is pushed into the entity queue, it may be in drm_sched_entity_push_job()
590 first = spsc_queue_push(&entity->job_queue, &sched_job->queue_node); in drm_sched_entity_push_job()
594 /* Add the entity to the run queue */ in drm_sched_entity_push_job()
595 spin_lock(&entity->rq_lock); in drm_sched_entity_push_job()
596 if (entity->stopped) { in drm_sched_entity_push_job()
597 spin_unlock(&entity->rq_lock); in drm_sched_entity_push_job()
599 DRM_ERROR("Trying to push to a killed entity\n"); in drm_sched_entity_push_job()
603 drm_sched_rq_add_entity(entity->rq, entity); in drm_sched_entity_push_job()
604 spin_unlock(&entity->rq_lock); in drm_sched_entity_push_job()
607 drm_sched_rq_update_fifo(entity, submit_ts); in drm_sched_entity_push_job()
609 drm_sched_wakeup(entity->rq->sched, entity); in drm_sched_entity_push_job()