Lines Matching defs:entity
42 * drm_sched_entity_init - Init a context entity used by scheduler when
45 * @entity: scheduler entity to init
46 * @priority: priority of the entity
48 * entity can be submitted
54 * the entity
58 int drm_sched_entity_init(struct drm_sched_entity *entity,
64 if (!(entity && sched_list && (num_sched_list == 0 || sched_list[0])))
67 memset(entity, 0, sizeof(struct drm_sched_entity));
68 INIT_LIST_HEAD(&entity->list);
69 entity->rq = NULL;
70 entity->guilty = guilty;
71 entity->num_sched_list = num_sched_list;
72 entity->priority = priority;
73 entity->sched_list = num_sched_list > 1 ? sched_list : NULL;
74 entity->last_scheduled = NULL;
77 entity->rq = &sched_list[0]->sched_rq[entity->priority];
79 init_completion(&entity->entity_idle);
81 spin_lock_init(&entity->rq_lock);
82 spsc_queue_init(&entity->job_queue);
84 atomic_set(&entity->fence_seq, 0);
85 entity->fence_context = dma_fence_context_alloc(2);
92 * drm_sched_entity_is_idle - Check if entity is idle
94 * @entity: scheduler entity
96 * Returns true if the entity does not have any unscheduled jobs.
98 static bool drm_sched_entity_is_idle(struct drm_sched_entity *entity)
100 assert_spin_locked(&entity->rq->sched->job_list_lock);
102 if (list_empty(&entity->list) ||
103 spsc_queue_count(&entity->job_queue) == 0)
110 * drm_sched_entity_is_ready - Check if entity is ready
112 * @entity: scheduler entity
114 * Return true if entity could provide a job.
116 bool drm_sched_entity_is_ready(struct drm_sched_entity *entity)
118 if (spsc_queue_peek(&entity->job_queue) == NULL)
121 if (READ_ONCE(entity->dependency))
130 * @entity: scheduler entity
135 drm_sched_entity_get_free_sched(struct drm_sched_entity *entity)
141 for (i = 0; i < entity->num_sched_list; ++i) {
142 struct drm_gpu_scheduler *sched = entity->sched_list[i];
144 if (!entity->sched_list[i]->ready) {
152 rq = &entity->sched_list[i]->sched_rq[entity->priority];
160 * drm_sched_entity_flush - Flush a context entity
162 * @entity: scheduler entity
166 * waiting, removes the entity from the runqueue and returns an error when the
171 long drm_sched_entity_flush(struct drm_sched_entity *entity, long timeout)
181 if (!entity->rq)
184 sched = entity->rq->sched;
189 drm_sched_entity_is_idle(entity));
200 drm_sched_entity_is_idle(entity),
204 drm_sched_entity_is_idle(entity));
210 last_user = cmpxchg(&entity->last_user, curproc, NULL);
214 last_user = cmpxchg(&entity->last_user, current->group_leader, NULL);
219 spin_lock(&entity->rq_lock);
220 entity->stopped = true;
221 drm_sched_rq_remove_entity(entity->rq, entity);
222 spin_unlock(&entity->rq_lock);
235 * Signal the scheduler finished fence when the entity in question is killed.
251 * @entity: entity which is cleaned up
253 * Makes sure that all remaining jobs in an entity are killed before it is
256 static void drm_sched_entity_kill_jobs(struct drm_sched_entity *entity)
261 while ((job = to_drm_sched_job(spsc_queue_pop(&entity->job_queue)))) {
268 * When pipe is hanged by older entity, new entity might
270 * and so entity->last_scheduled will remain NULL
272 if (!entity->last_scheduled) {
277 r = dma_fence_add_callback(entity->last_scheduled,
288 * drm_sched_entity_cleanup - Destroy a context entity
290 * @entity: scheduler entity
293 * entity and signals all jobs with an error code if the process was killed.
296 void drm_sched_entity_fini(struct drm_sched_entity *entity)
300 if (entity->rq) {
301 sched = entity->rq->sched;
302 drm_sched_rq_remove_entity(entity->rq, entity);
305 spin_lock_destroy(&entity->rq_lock);
310 if (spsc_queue_count(&entity->job_queue)) {
314 * this entity.
316 wait_for_completion(&entity->entity_idle);
319 if (entity->dependency) {
320 dma_fence_remove_callback(entity->dependency,
321 &entity->cb);
322 dma_fence_put(entity->dependency);
323 entity->dependency = NULL;
326 drm_sched_entity_kill_jobs(entity);
329 destroy_completion(&entity->entity_idle);
331 dma_fence_put(entity->last_scheduled);
332 entity->last_scheduled = NULL;
337 * drm_sched_entity_fini - Destroy a context entity
339 * @entity: scheduler entity
343 void drm_sched_entity_destroy(struct drm_sched_entity *entity)
345 drm_sched_entity_flush(entity, MAX_WAIT_SCHED_ENTITY_Q_EMPTY);
346 drm_sched_entity_fini(entity);
356 struct drm_sched_entity *entity =
359 entity->dependency = NULL;
370 struct drm_sched_entity *entity =
374 spin_lock(&entity->rq->sched->job_list_lock);
375 drm_sched_wakeup(entity->rq->sched);
376 spin_unlock(&entity->rq->sched->job_list_lock);
380 * drm_sched_entity_set_priority - Sets priority of the entity
382 * @entity: scheduler entity
385 * Update the priority of runqueus used for the entity.
387 void drm_sched_entity_set_priority(struct drm_sched_entity *entity,
390 spin_lock(&entity->rq_lock);
391 entity->priority = priority;
392 spin_unlock(&entity->rq_lock);
399 * @entity: entity with dependency
401 * Add a callback to the current dependency of the entity to wake up the
402 * scheduler when the entity becomes available.
404 static bool drm_sched_entity_add_dependency_cb(struct drm_sched_entity *entity)
406 struct drm_gpu_scheduler *sched = entity->rq->sched;
407 struct dma_fence *fence = entity->dependency;
410 if (fence->context == entity->fence_context ||
411 fence->context == entity->fence_context + 1) {
414 * which belongs to the same entity, we can ignore
417 dma_fence_put(entity->dependency);
429 dma_fence_put(entity->dependency);
430 entity->dependency = fence;
431 if (!dma_fence_add_callback(fence, &entity->cb,
440 if (!dma_fence_add_callback(entity->dependency, &entity->cb,
444 dma_fence_put(entity->dependency);
449 * drm_sched_entity_pop_job - get a ready to be scheduled job from the entity
451 * @entity: entity to get the job from
455 struct drm_sched_job *drm_sched_entity_pop_job(struct drm_sched_entity *entity)
457 struct drm_gpu_scheduler *sched = entity->rq->sched;
460 sched_job = to_drm_sched_job(spsc_queue_peek(&entity->job_queue));
464 while ((entity->dependency =
465 sched->ops->dependency(sched_job, entity))) {
466 trace_drm_sched_job_wait_dep(sched_job, entity->dependency);
468 if (drm_sched_entity_add_dependency_cb(entity))
472 /* skip jobs from entity that marked guilty */
473 if (entity->guilty && atomic_read(entity->guilty))
476 dma_fence_put(entity->last_scheduled);
477 entity->last_scheduled = dma_fence_get(&sched_job->s_fence->finished);
479 spsc_queue_pop(&entity->job_queue);
484 * drm_sched_entity_select_rq - select a new rq for the entity
486 * @entity: scheduler entity
488 * Check all prerequisites and select a new rq for the entity for load
491 void drm_sched_entity_select_rq(struct drm_sched_entity *entity)
496 if (spsc_queue_count(&entity->job_queue) || entity->num_sched_list <= 1)
499 fence = READ_ONCE(entity->last_scheduled);
503 spin_lock(&entity->rq_lock);
504 rq = drm_sched_entity_get_free_sched(entity);
505 if (rq != entity->rq) {
506 drm_sched_rq_remove_entity(entity->rq, entity);
507 entity->rq = rq;
510 spin_unlock(&entity->rq_lock);
514 * drm_sched_entity_push_job - Submit a job to the entity's job queue
517 * @entity: scheduler entity
526 struct drm_sched_entity *entity)
530 trace_drm_sched_job(sched_job, entity);
531 atomic_inc(&entity->rq->sched->score);
533 WRITE_ONCE(entity->last_user, curproc);
535 WRITE_ONCE(entity->last_user, current->group_leader);
537 first = spsc_queue_push(&entity->job_queue, &sched_job->queue_node);
541 /* Add the entity to the run queue */
542 spin_lock(&entity->rq_lock);
543 if (entity->stopped) {
544 spin_unlock(&entity->rq_lock);
546 DRM_ERROR("Trying to push to a killed entity\n");
549 drm_sched_rq_add_entity(entity->rq, entity);
550 spin_unlock(&entity->rq_lock);
551 spin_lock(&entity->rq->sched->job_list_lock);
552 drm_sched_wakeup(entity->rq->sched);
553 spin_unlock(&entity->rq->sched->job_list_lock);
Indexes created Mon Sep 29 21:09:56 GMT 2025