Lines Matching defs: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
49 * the entity
53 int drm_sched_entity_init(struct drm_sched_entity *entity,
59 if (!(entity && sched_list && (num_sched_list == 0 || sched_list[0])))
62 memset(entity, 0, sizeof(struct drm_sched_entity));
63 INIT_LIST_HEAD(&entity->list);
64 entity->rq = NULL;
65 entity->guilty = guilty;
66 entity->num_sched_list = num_sched_list;
67 entity->priority = priority;
68 entity->sched_list = num_sched_list > 1 ? sched_list : NULL;
69 entity->last_scheduled = NULL;
72 entity->rq = &sched_list[0]->sched_rq[entity->priority];
74 init_completion(&entity->entity_idle);
76 spin_lock_init(&entity->rq_lock);
77 spsc_queue_init(&entity->job_queue);
79 atomic_set(&entity->fence_seq, 0);
80 entity->fence_context = dma_fence_context_alloc(2);
87 * drm_sched_entity_modify_sched - Modify sched of an entity
88 * @entity: scheduler entity to init
90 * existing entity->sched_list
93 void drm_sched_entity_modify_sched(struct drm_sched_entity *entity,
99 entity->sched_list = sched_list;
100 entity->num_sched_list = num_sched_list;
105 * drm_sched_entity_is_idle - Check if entity is idle
107 * @entity: scheduler entity
109 * Returns true if the entity does not have any unscheduled jobs.
111 static bool drm_sched_entity_is_idle(struct drm_sched_entity *entity)
115 if (list_empty(&entity->list) ||
116 spsc_queue_count(&entity->job_queue) == 0 ||
117 entity->stopped)
124 * drm_sched_entity_is_ready - Check if entity is ready
126 * @entity: scheduler entity
128 * Return true if entity could provide a job.
130 bool drm_sched_entity_is_ready(struct drm_sched_entity *entity)
132 if (spsc_queue_peek(&entity->job_queue) == NULL)
135 if (READ_ONCE(entity->dependency))
142 * drm_sched_entity_flush - Flush a context entity
144 * @entity: scheduler entity
148 * waiting, removes the entity from the runqueue and returns an error when the
153 long drm_sched_entity_flush(struct drm_sched_entity *entity, long timeout)
159 if (!entity->rq)
162 sched = entity->rq->sched;
171 drm_sched_entity_is_idle(entity),
175 drm_sched_entity_is_idle(entity));
179 last_user = cmpxchg(&entity->last_user, current->group_leader, NULL);
182 spin_lock(&entity->rq_lock);
183 entity->stopped = true;
184 drm_sched_rq_remove_entity(entity->rq, entity);
185 spin_unlock(&entity->rq_lock);
198 * Signal the scheduler finished fence when the entity in question is killed.
214 * @entity: entity which is cleaned up
216 * Makes sure that all remaining jobs in an entity are killed before it is
219 static void drm_sched_entity_kill_jobs(struct drm_sched_entity *entity)
225 while ((job = to_drm_sched_job(spsc_queue_pop(&entity->job_queue)))) {
229 while ((f = job->sched->ops->dependency(job, entity)))
236 * When pipe is hanged by older entity, new entity might
238 * and so entity->last_scheduled will remain NULL
240 if (!entity->last_scheduled) {
245 r = dma_fence_add_callback(entity->last_scheduled,
256 * drm_sched_entity_cleanup - Destroy a context entity
258 * @entity: scheduler entity
261 * entity and signals all jobs with an error code if the process was killed.
264 void drm_sched_entity_fini(struct drm_sched_entity *entity)
268 if (entity->rq) {
269 sched = entity->rq->sched;
270 drm_sched_rq_remove_entity(entity->rq, entity);
276 if (spsc_queue_count(&entity->job_queue)) {
280 * this entity.
282 wait_for_completion(&entity->entity_idle);
285 if (entity->dependency) {
286 dma_fence_remove_callback(entity->dependency,
287 &entity->cb);
288 dma_fence_put(entity->dependency);
289 entity->dependency = NULL;
292 drm_sched_entity_kill_jobs(entity);
295 dma_fence_put(entity->last_scheduled);
296 entity->last_scheduled = NULL;
301 * drm_sched_entity_fini - Destroy a context entity
303 * @entity: scheduler entity
307 void drm_sched_entity_destroy(struct drm_sched_entity *entity)
309 drm_sched_entity_flush(entity, MAX_WAIT_SCHED_ENTITY_Q_EMPTY);
310 drm_sched_entity_fini(entity);
320 struct drm_sched_entity *entity =
323 entity->dependency = NULL;
334 struct drm_sched_entity *entity =
338 drm_sched_wakeup(entity->rq->sched);
342 * drm_sched_entity_set_priority - Sets priority of the entity
344 * @entity: scheduler entity
347 * Update the priority of runqueus used for the entity.
349 void drm_sched_entity_set_priority(struct drm_sched_entity *entity,
352 spin_lock(&entity->rq_lock);
353 entity->priority = priority;
354 spin_unlock(&entity->rq_lock);
361 * @entity: entity with dependency
363 * Add a callback to the current dependency of the entity to wake up the
364 * scheduler when the entity becomes available.
366 static bool drm_sched_entity_add_dependency_cb(struct drm_sched_entity *entity)
368 struct drm_gpu_scheduler *sched = entity->rq->sched;
369 struct dma_fence *fence = entity->dependency;
372 if (fence->context == entity->fence_context ||
373 fence->context == entity->fence_context + 1) {
376 * which belongs to the same entity, we can ignore
379 dma_fence_put(entity->dependency);
391 dma_fence_put(entity->dependency);
392 entity->dependency = fence;
393 if (!dma_fence_add_callback(fence, &entity->cb,
402 if (!dma_fence_add_callback(entity->dependency, &entity->cb,
406 dma_fence_put(entity->dependency);
411 * drm_sched_entity_pop_job - get a ready to be scheduled job from the entity
413 * @entity: entity to get the job from
417 struct drm_sched_job *drm_sched_entity_pop_job(struct drm_sched_entity *entity)
419 struct drm_gpu_scheduler *sched = entity->rq->sched;
422 sched_job = to_drm_sched_job(spsc_queue_peek(&entity->job_queue));
426 while ((entity->dependency =
427 sched->ops->dependency(sched_job, entity))) {
428 trace_drm_sched_job_wait_dep(sched_job, entity->dependency);
430 if (drm_sched_entity_add_dependency_cb(entity))
434 /* skip jobs from entity that marked guilty */
435 if (entity->guilty && atomic_read(entity->guilty))
438 dma_fence_put(entity->last_scheduled);
439 entity->last_scheduled = dma_fence_get(&sched_job->s_fence->finished);
441 spsc_queue_pop(&entity->job_queue);
446 * drm_sched_entity_select_rq - select a new rq for the entity
448 * @entity: scheduler entity
450 * Check all prerequisites and select a new rq for the entity for load
453 void drm_sched_entity_select_rq(struct drm_sched_entity *entity)
459 if (spsc_queue_count(&entity->job_queue) || entity->num_sched_list <= 1)
462 fence = READ_ONCE(entity->last_scheduled);
466 spin_lock(&entity->rq_lock);
467 sched = drm_sched_pick_best(entity->sched_list, entity->num_sched_list);
468 rq = sched ? &sched->sched_rq[entity->priority] : NULL;
469 if (rq != entity->rq) {
470 drm_sched_rq_remove_entity(entity->rq, entity);
471 entity->rq = rq;
474 spin_unlock(&entity->rq_lock);
478 * drm_sched_entity_push_job - Submit a job to the entity's job queue
481 * @entity: scheduler entity
490 struct drm_sched_entity *entity)
494 trace_drm_sched_job(sched_job, entity);
495 atomic_inc(&entity->rq->sched->score);
496 WRITE_ONCE(entity->last_user, current->group_leader);
497 first = spsc_queue_push(&entity->job_queue, &sched_job->queue_node);
501 /* Add the entity to the run queue */
502 spin_lock(&entity->rq_lock);
503 if (entity->stopped) {
504 spin_unlock(&entity->rq_lock);
506 DRM_ERROR("Trying to push to a killed entity\n");
509 drm_sched_rq_add_entity(entity->rq, entity);
510 spin_unlock(&entity->rq_lock);
511 drm_sched_wakeup(entity->rq->sched);