Lines Matching full:entity
36 * drm_sched_entity_init - Init a context entity used by scheduler when
39 * @entity: scheduler entity to init
40 * @priority: priority of the entity
42 * entity can be submitted
47 * Note that the &sched_list must have at least one element to schedule the entity.
53 * An entity is cleaned up by calling drm_sched_entity_fini(). See also
58 int drm_sched_entity_init(struct drm_sched_entity *entity, in drm_sched_entity_init() argument
64 if (!(entity && sched_list && (num_sched_list == 0 || sched_list[0]))) in drm_sched_entity_init()
67 memset(entity, 0, sizeof(struct drm_sched_entity)); in drm_sched_entity_init()
68 INIT_LIST_HEAD(&entity->list); in drm_sched_entity_init()
69 entity->rq = NULL; in drm_sched_entity_init()
70 entity->guilty = guilty; in drm_sched_entity_init()
71 entity->num_sched_list = num_sched_list; in drm_sched_entity_init()
72 entity->priority = priority; in drm_sched_entity_init()
74 * It's perfectly valid to initialize an entity without having a valid in drm_sched_entity_init()
78 entity->sched_list = num_sched_list > 1 ? sched_list : NULL; in drm_sched_entity_init()
79 RCU_INIT_POINTER(entity->last_scheduled, NULL); in drm_sched_entity_init()
80 RB_CLEAR_NODE(&entity->rb_tree_node); in drm_sched_entity_init()
89 /* The "priority" of an entity cannot exceed the number of run-queues of a in drm_sched_entity_init()
93 if (entity->priority >= sched_list[0]->num_rqs) { in drm_sched_entity_init()
94 dev_err(sched_list[0]->dev, "entity has out-of-bounds priority: %u. num_rqs: %u\n", in drm_sched_entity_init()
95 entity->priority, sched_list[0]->num_rqs); in drm_sched_entity_init()
96 entity->priority = max_t(s32, (s32) sched_list[0]->num_rqs - 1, in drm_sched_entity_init()
99 entity->rq = sched_list[0]->sched_rq[entity->priority]; in drm_sched_entity_init()
102 init_completion(&entity->entity_idle); in drm_sched_entity_init()
105 complete_all(&entity->entity_idle); in drm_sched_entity_init()
107 spin_lock_init(&entity->lock); in drm_sched_entity_init()
108 spsc_queue_init(&entity->job_queue); in drm_sched_entity_init()
110 atomic_set(&entity->fence_seq, 0); in drm_sched_entity_init()
111 entity->fence_context = dma_fence_context_alloc(2); in drm_sched_entity_init()
118 * drm_sched_entity_modify_sched - Modify sched of an entity
119 * @entity: scheduler entity to init
121 * existing entity->sched_list
124 * Note that this must be called under the same common lock for @entity as
127 * can be pushed to @entity.
129 void drm_sched_entity_modify_sched(struct drm_sched_entity *entity, in drm_sched_entity_modify_sched() argument
135 spin_lock(&entity->lock); in drm_sched_entity_modify_sched()
136 entity->sched_list = sched_list; in drm_sched_entity_modify_sched()
137 entity->num_sched_list = num_sched_list; in drm_sched_entity_modify_sched()
138 spin_unlock(&entity->lock); in drm_sched_entity_modify_sched()
142 static bool drm_sched_entity_is_idle(struct drm_sched_entity *entity) in drm_sched_entity_is_idle() argument
146 if (list_empty(&entity->list) || in drm_sched_entity_is_idle()
147 spsc_queue_count(&entity->job_queue) == 0 || in drm_sched_entity_is_idle()
148 entity->stopped) in drm_sched_entity_is_idle()
156 * @entity: scheduler entity to check
161 int drm_sched_entity_error(struct drm_sched_entity *entity) in drm_sched_entity_error() argument
167 fence = rcu_dereference(entity->last_scheduled); in drm_sched_entity_error()
184 /* Signal the scheduler finished fence when the entity in question is killed. */
225 /* Remove the entity from the scheduler and kill all pending jobs */
226 static void drm_sched_entity_kill(struct drm_sched_entity *entity) in drm_sched_entity_kill() argument
231 if (!entity->rq) in drm_sched_entity_kill()
234 spin_lock(&entity->lock); in drm_sched_entity_kill()
235 entity->stopped = true; in drm_sched_entity_kill()
236 drm_sched_rq_remove_entity(entity->rq, entity); in drm_sched_entity_kill()
237 spin_unlock(&entity->lock); in drm_sched_entity_kill()
239 /* Make sure this entity is not used by the scheduler at the moment */ in drm_sched_entity_kill()
240 wait_for_completion(&entity->entity_idle); in drm_sched_entity_kill()
242 /* The entity is guaranteed to not be used by the scheduler */ in drm_sched_entity_kill()
243 prev = rcu_dereference_check(entity->last_scheduled, true); in drm_sched_entity_kill()
245 while ((job = drm_sched_entity_queue_pop(entity))) { in drm_sched_entity_kill()
266 * drm_sched_entity_flush - Flush a context entity
268 * @entity: scheduler entity
272 * waiting, removes the entity from the runqueue and returns an error when the
277 long drm_sched_entity_flush(struct drm_sched_entity *entity, long timeout) in drm_sched_entity_flush() argument
283 if (!entity->rq) in drm_sched_entity_flush()
286 sched = entity->rq->sched; in drm_sched_entity_flush()
295 drm_sched_entity_is_idle(entity), in drm_sched_entity_flush()
299 drm_sched_entity_is_idle(entity)); in drm_sched_entity_flush()
303 last_user = cmpxchg(&entity->last_user, current->group_leader, NULL); in drm_sched_entity_flush()
306 drm_sched_entity_kill(entity); in drm_sched_entity_flush()
313 * drm_sched_entity_fini - Destroy a context entity
315 * @entity: scheduler entity
317 * Cleanups up @entity which has been initialized by drm_sched_entity_init().
321 * the entity and signals all jobs with an error code if the process was killed.
323 void drm_sched_entity_fini(struct drm_sched_entity *entity) in drm_sched_entity_fini() argument
327 * them here. Also makes sure that the scheduler won't touch this entity in drm_sched_entity_fini()
330 drm_sched_entity_kill(entity); in drm_sched_entity_fini()
332 if (entity->dependency) { in drm_sched_entity_fini()
333 dma_fence_remove_callback(entity->dependency, &entity->cb); in drm_sched_entity_fini()
334 dma_fence_put(entity->dependency); in drm_sched_entity_fini()
335 entity->dependency = NULL; in drm_sched_entity_fini()
338 dma_fence_put(rcu_dereference_check(entity->last_scheduled, true)); in drm_sched_entity_fini()
339 RCU_INIT_POINTER(entity->last_scheduled, NULL); in drm_sched_entity_fini()
344 * drm_sched_entity_destroy - Destroy a context entity
345 * @entity: scheduler entity
350 void drm_sched_entity_destroy(struct drm_sched_entity *entity) in drm_sched_entity_destroy() argument
352 drm_sched_entity_flush(entity, MAX_WAIT_SCHED_ENTITY_Q_EMPTY); in drm_sched_entity_destroy()
353 drm_sched_entity_fini(entity); in drm_sched_entity_destroy()
361 struct drm_sched_entity *entity = in drm_sched_entity_clear_dep() local
364 entity->dependency = NULL; in drm_sched_entity_clear_dep()
369 * drm_sched_entity_wakeup - callback to clear the entity's dependency and
375 struct drm_sched_entity *entity = in drm_sched_entity_wakeup() local
379 drm_sched_wakeup(entity->rq->sched); in drm_sched_entity_wakeup()
383 * drm_sched_entity_set_priority - Sets priority of the entity
385 * @entity: scheduler entity
388 * Update the priority of runqueues used for the entity.
390 void drm_sched_entity_set_priority(struct drm_sched_entity *entity, in drm_sched_entity_set_priority() argument
393 spin_lock(&entity->lock); in drm_sched_entity_set_priority()
394 entity->priority = priority; in drm_sched_entity_set_priority()
395 spin_unlock(&entity->lock); in drm_sched_entity_set_priority()
400 * Add a callback to the current dependency of the entity to wake up the
401 * scheduler when the entity becomes available.
403 static bool drm_sched_entity_add_dependency_cb(struct drm_sched_entity *entity) in drm_sched_entity_add_dependency_cb() argument
405 struct drm_gpu_scheduler *sched = entity->rq->sched; in drm_sched_entity_add_dependency_cb()
406 struct dma_fence *fence = entity->dependency; in drm_sched_entity_add_dependency_cb()
409 if (fence->context == entity->fence_context || in drm_sched_entity_add_dependency_cb()
410 fence->context == entity->fence_context + 1) { in drm_sched_entity_add_dependency_cb()
413 * which belongs to the same entity, we can ignore in drm_sched_entity_add_dependency_cb()
416 dma_fence_put(entity->dependency); in drm_sched_entity_add_dependency_cb()
429 dma_fence_put(entity->dependency); in drm_sched_entity_add_dependency_cb()
430 entity->dependency = fence; in drm_sched_entity_add_dependency_cb()
431 if (!dma_fence_add_callback(fence, &entity->cb, in drm_sched_entity_add_dependency_cb()
440 if (!dma_fence_add_callback(entity->dependency, &entity->cb, in drm_sched_entity_add_dependency_cb()
444 dma_fence_put(entity->dependency); in drm_sched_entity_add_dependency_cb()
450 struct drm_sched_entity *entity) in drm_sched_job_dependency() argument
465 return job->sched->ops->prepare_job(job, entity); in drm_sched_job_dependency()
470 struct drm_sched_job *drm_sched_entity_pop_job(struct drm_sched_entity *entity) in drm_sched_entity_pop_job() argument
474 sched_job = drm_sched_entity_queue_peek(entity); in drm_sched_entity_pop_job()
478 while ((entity->dependency = in drm_sched_entity_pop_job()
479 drm_sched_job_dependency(sched_job, entity))) { in drm_sched_entity_pop_job()
480 trace_drm_sched_job_wait_dep(sched_job, entity->dependency); in drm_sched_entity_pop_job()
482 if (drm_sched_entity_add_dependency_cb(entity)) in drm_sched_entity_pop_job()
486 /* skip jobs from entity that marked guilty */ in drm_sched_entity_pop_job()
487 if (entity->guilty && atomic_read(entity->guilty)) in drm_sched_entity_pop_job()
490 dma_fence_put(rcu_dereference_check(entity->last_scheduled, true)); in drm_sched_entity_pop_job()
491 rcu_assign_pointer(entity->last_scheduled, in drm_sched_entity_pop_job()
501 spsc_queue_pop(&entity->job_queue); in drm_sched_entity_pop_job()
504 * Update the entity's location in the min heap according to in drm_sched_entity_pop_job()
510 next = drm_sched_entity_queue_peek(entity); in drm_sched_entity_pop_job()
514 spin_lock(&entity->lock); in drm_sched_entity_pop_job()
515 rq = entity->rq; in drm_sched_entity_pop_job()
517 drm_sched_rq_update_fifo_locked(entity, rq, in drm_sched_entity_pop_job()
520 spin_unlock(&entity->lock); in drm_sched_entity_pop_job()
525 * removing the job from the entities queue, set the jobs entity pointer in drm_sched_entity_pop_job()
526 * to NULL to prevent any future access of the entity through this job. in drm_sched_entity_pop_job()
528 sched_job->entity = NULL; in drm_sched_entity_pop_job()
533 void drm_sched_entity_select_rq(struct drm_sched_entity *entity) in drm_sched_entity_select_rq() argument
540 if (!entity->sched_list) in drm_sched_entity_select_rq()
544 if (spsc_queue_count(&entity->job_queue)) in drm_sched_entity_select_rq()
555 fence = rcu_dereference_check(entity->last_scheduled, true); in drm_sched_entity_select_rq()
561 spin_lock(&entity->lock); in drm_sched_entity_select_rq()
562 sched = drm_sched_pick_best(entity->sched_list, entity->num_sched_list); in drm_sched_entity_select_rq()
563 rq = sched ? sched->sched_rq[entity->priority] : NULL; in drm_sched_entity_select_rq()
564 if (rq != entity->rq) { in drm_sched_entity_select_rq()
565 drm_sched_rq_remove_entity(entity->rq, entity); in drm_sched_entity_select_rq()
566 entity->rq = rq; in drm_sched_entity_select_rq()
568 spin_unlock(&entity->lock); in drm_sched_entity_select_rq()
570 if (entity->num_sched_list == 1) in drm_sched_entity_select_rq()
571 entity->sched_list = NULL; in drm_sched_entity_select_rq()
575 * drm_sched_entity_push_job - Submit a job to the entity's job queue
585 struct drm_sched_entity *entity = sched_job->entity; in drm_sched_entity_push_job() local
589 trace_drm_sched_job(sched_job, entity); in drm_sched_entity_push_job()
590 atomic_inc(entity->rq->sched->score); in drm_sched_entity_push_job()
591 WRITE_ONCE(entity->last_user, current->group_leader); in drm_sched_entity_push_job()
594 * After the sched_job is pushed into the entity queue, it may be in drm_sched_entity_push_job()
599 first = spsc_queue_push(&entity->job_queue, &sched_job->queue_node); in drm_sched_entity_push_job()
606 /* Add the entity to the run queue */ in drm_sched_entity_push_job()
607 spin_lock(&entity->lock); in drm_sched_entity_push_job()
608 if (entity->stopped) { in drm_sched_entity_push_job()
609 spin_unlock(&entity->lock); in drm_sched_entity_push_job()
611 DRM_ERROR("Trying to push to a killed entity\n"); in drm_sched_entity_push_job()
615 rq = entity->rq; in drm_sched_entity_push_job()
619 drm_sched_rq_add_entity(rq, entity); in drm_sched_entity_push_job()
622 drm_sched_rq_update_fifo_locked(entity, rq, submit_ts); in drm_sched_entity_push_job()
625 spin_unlock(&entity->lock); in drm_sched_entity_push_job()