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
49 * the entity
53 int drm_sched_entity_init(struct drm_sched_entity *entity, in drm_sched_entity_init() argument
59 if (!(entity && sched_list && (num_sched_list == 0 || sched_list[0]))) in drm_sched_entity_init()
62 memset(entity, 0, sizeof(struct drm_sched_entity)); in drm_sched_entity_init()
63 INIT_LIST_HEAD(&entity->list); in drm_sched_entity_init()
64 entity->rq = NULL; in drm_sched_entity_init()
65 entity->guilty = guilty; in drm_sched_entity_init()
66 entity->num_sched_list = num_sched_list; in drm_sched_entity_init()
67 entity->priority = priority; in drm_sched_entity_init()
68 entity->sched_list = num_sched_list > 1 ? sched_list : NULL; in drm_sched_entity_init()
69 entity->last_scheduled = NULL; in drm_sched_entity_init()
72 entity->rq = &sched_list[0]->sched_rq[entity->priority]; in drm_sched_entity_init()
74 init_completion(&entity->entity_idle); in drm_sched_entity_init()
76 spin_lock_init(&entity->rq_lock); in drm_sched_entity_init()
77 spsc_queue_init(&entity->job_queue); in drm_sched_entity_init()
79 atomic_set(&entity->fence_seq, 0); in drm_sched_entity_init()
80 entity->fence_context = dma_fence_context_alloc(2); in drm_sched_entity_init()
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, in drm_sched_entity_modify_sched() argument
99 entity->sched_list = sched_list; in drm_sched_entity_modify_sched()
100 entity->num_sched_list = num_sched_list; in drm_sched_entity_modify_sched()
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) in drm_sched_entity_is_idle() argument
115 if (list_empty(&entity->list) || in drm_sched_entity_is_idle()
116 spsc_queue_count(&entity->job_queue) == 0) in drm_sched_entity_is_idle()
123 * drm_sched_entity_is_ready - Check if entity is ready
125 * @entity: scheduler entity
127 * Return true if entity could provide a job.
129 bool drm_sched_entity_is_ready(struct drm_sched_entity *entity) in drm_sched_entity_is_ready() argument
131 if (spsc_queue_peek(&entity->job_queue) == NULL) in drm_sched_entity_is_ready()
134 if (READ_ONCE(entity->dependency)) in drm_sched_entity_is_ready()
141 * drm_sched_entity_flush - Flush a context entity
143 * @entity: scheduler entity
147 * waiting, removes the entity from the runqueue and returns an error when the
152 long drm_sched_entity_flush(struct drm_sched_entity *entity, long timeout) in drm_sched_entity_flush() argument
158 if (!entity->rq) in drm_sched_entity_flush()
161 sched = entity->rq->sched; in drm_sched_entity_flush()
170 drm_sched_entity_is_idle(entity), in drm_sched_entity_flush()
174 drm_sched_entity_is_idle(entity)); in drm_sched_entity_flush()
178 last_user = cmpxchg(&entity->last_user, current->group_leader, NULL); in drm_sched_entity_flush()
181 spin_lock(&entity->rq_lock); in drm_sched_entity_flush()
182 entity->stopped = true; in drm_sched_entity_flush()
183 drm_sched_rq_remove_entity(entity->rq, entity); in drm_sched_entity_flush()
184 spin_unlock(&entity->rq_lock); in drm_sched_entity_flush()
197 * Signal the scheduler finished fence when the entity in question is killed.
213 * @entity: entity which is cleaned up
215 * Makes sure that all remaining jobs in an entity are killed before it is
218 static void drm_sched_entity_kill_jobs(struct drm_sched_entity *entity) in drm_sched_entity_kill_jobs() argument
223 while ((job = to_drm_sched_job(spsc_queue_pop(&entity->job_queue)))) { in drm_sched_entity_kill_jobs()
230 * When pipe is hanged by older entity, new entity might in drm_sched_entity_kill_jobs()
232 * and so entity->last_scheduled will remain NULL in drm_sched_entity_kill_jobs()
234 if (!entity->last_scheduled) { in drm_sched_entity_kill_jobs()
239 r = dma_fence_add_callback(entity->last_scheduled, in drm_sched_entity_kill_jobs()
250 * drm_sched_entity_cleanup - Destroy a context entity
252 * @entity: scheduler entity
255 * entity and signals all jobs with an error code if the process was killed.
258 void drm_sched_entity_fini(struct drm_sched_entity *entity) in drm_sched_entity_fini() argument
262 if (entity->rq) { in drm_sched_entity_fini()
263 sched = entity->rq->sched; in drm_sched_entity_fini()
264 drm_sched_rq_remove_entity(entity->rq, entity); in drm_sched_entity_fini()
270 if (spsc_queue_count(&entity->job_queue)) { in drm_sched_entity_fini()
274 * this entity. in drm_sched_entity_fini()
276 wait_for_completion(&entity->entity_idle); in drm_sched_entity_fini()
279 if (entity->dependency) { in drm_sched_entity_fini()
280 dma_fence_remove_callback(entity->dependency, in drm_sched_entity_fini()
281 &entity->cb); in drm_sched_entity_fini()
282 dma_fence_put(entity->dependency); in drm_sched_entity_fini()
283 entity->dependency = NULL; in drm_sched_entity_fini()
286 drm_sched_entity_kill_jobs(entity); in drm_sched_entity_fini()
289 dma_fence_put(entity->last_scheduled); in drm_sched_entity_fini()
290 entity->last_scheduled = NULL; in drm_sched_entity_fini()
295 * drm_sched_entity_fini - Destroy a context entity
297 * @entity: scheduler entity
301 void drm_sched_entity_destroy(struct drm_sched_entity *entity) in drm_sched_entity_destroy() argument
303 drm_sched_entity_flush(entity, MAX_WAIT_SCHED_ENTITY_Q_EMPTY); in drm_sched_entity_destroy()
304 drm_sched_entity_fini(entity); in drm_sched_entity_destroy()
314 struct drm_sched_entity *entity = in drm_sched_entity_clear_dep() local
317 entity->dependency = NULL; in drm_sched_entity_clear_dep()
328 struct drm_sched_entity *entity = in drm_sched_entity_wakeup() local
332 drm_sched_wakeup(entity->rq->sched); in drm_sched_entity_wakeup()
336 * drm_sched_entity_set_priority - Sets priority of the entity
338 * @entity: scheduler entity
341 * Update the priority of runqueus used for the entity.
343 void drm_sched_entity_set_priority(struct drm_sched_entity *entity, in drm_sched_entity_set_priority() argument
346 spin_lock(&entity->rq_lock); in drm_sched_entity_set_priority()
347 entity->priority = priority; in drm_sched_entity_set_priority()
348 spin_unlock(&entity->rq_lock); in drm_sched_entity_set_priority()
355 * @entity: entity with dependency
357 * Add a callback to the current dependency of the entity to wake up the
358 * scheduler when the entity becomes available.
360 static bool drm_sched_entity_add_dependency_cb(struct drm_sched_entity *entity) in drm_sched_entity_add_dependency_cb() argument
362 struct drm_gpu_scheduler *sched = entity->rq->sched; in drm_sched_entity_add_dependency_cb()
363 struct dma_fence *fence = entity->dependency; in drm_sched_entity_add_dependency_cb()
366 if (fence->context == entity->fence_context || in drm_sched_entity_add_dependency_cb()
367 fence->context == entity->fence_context + 1) { in drm_sched_entity_add_dependency_cb()
370 * which belongs to the same entity, we can ignore in drm_sched_entity_add_dependency_cb()
373 dma_fence_put(entity->dependency); in drm_sched_entity_add_dependency_cb()
385 dma_fence_put(entity->dependency); in drm_sched_entity_add_dependency_cb()
386 entity->dependency = fence; in drm_sched_entity_add_dependency_cb()
387 if (!dma_fence_add_callback(fence, &entity->cb, in drm_sched_entity_add_dependency_cb()
396 if (!dma_fence_add_callback(entity->dependency, &entity->cb, in drm_sched_entity_add_dependency_cb()
400 dma_fence_put(entity->dependency); in drm_sched_entity_add_dependency_cb()
405 * drm_sched_entity_pop_job - get a ready to be scheduled job from the entity
407 * @entity: entity to get the job from
411 struct drm_sched_job *drm_sched_entity_pop_job(struct drm_sched_entity *entity) in drm_sched_entity_pop_job() argument
413 struct drm_gpu_scheduler *sched = entity->rq->sched; in drm_sched_entity_pop_job()
416 sched_job = to_drm_sched_job(spsc_queue_peek(&entity->job_queue)); in drm_sched_entity_pop_job()
420 while ((entity->dependency = in drm_sched_entity_pop_job()
421 sched->ops->dependency(sched_job, entity))) { in drm_sched_entity_pop_job()
422 trace_drm_sched_job_wait_dep(sched_job, entity->dependency); in drm_sched_entity_pop_job()
424 if (drm_sched_entity_add_dependency_cb(entity)) in drm_sched_entity_pop_job()
428 /* skip jobs from entity that marked guilty */ in drm_sched_entity_pop_job()
429 if (entity->guilty && atomic_read(entity->guilty)) in drm_sched_entity_pop_job()
432 dma_fence_put(entity->last_scheduled); in drm_sched_entity_pop_job()
433 entity->last_scheduled = dma_fence_get(&sched_job->s_fence->finished); in drm_sched_entity_pop_job()
435 spsc_queue_pop(&entity->job_queue); in drm_sched_entity_pop_job()
440 * drm_sched_entity_select_rq - select a new rq for the entity
442 * @entity: scheduler entity
444 * Check all prerequisites and select a new rq for the entity for load
447 void drm_sched_entity_select_rq(struct drm_sched_entity *entity) in drm_sched_entity_select_rq() argument
453 if (spsc_queue_count(&entity->job_queue) || entity->num_sched_list <= 1) in drm_sched_entity_select_rq()
456 fence = READ_ONCE(entity->last_scheduled); in drm_sched_entity_select_rq()
460 spin_lock(&entity->rq_lock); in drm_sched_entity_select_rq()
461 sched = drm_sched_pick_best(entity->sched_list, entity->num_sched_list); in drm_sched_entity_select_rq()
462 rq = sched ? &sched->sched_rq[entity->priority] : NULL; in drm_sched_entity_select_rq()
463 if (rq != entity->rq) { in drm_sched_entity_select_rq()
464 drm_sched_rq_remove_entity(entity->rq, entity); in drm_sched_entity_select_rq()
465 entity->rq = rq; in drm_sched_entity_select_rq()
468 spin_unlock(&entity->rq_lock); in drm_sched_entity_select_rq()
472 * drm_sched_entity_push_job - Submit a job to the entity's job queue
475 * @entity: scheduler entity
484 struct drm_sched_entity *entity) in drm_sched_entity_push_job() argument
488 trace_drm_sched_job(sched_job, entity); in drm_sched_entity_push_job()
489 atomic_inc(&entity->rq->sched->score); in drm_sched_entity_push_job()
490 WRITE_ONCE(entity->last_user, current->group_leader); in drm_sched_entity_push_job()
491 first = spsc_queue_push(&entity->job_queue, &sched_job->queue_node); in drm_sched_entity_push_job()
495 /* Add the entity to the run queue */ in drm_sched_entity_push_job()
496 spin_lock(&entity->rq_lock); in drm_sched_entity_push_job()
497 if (entity->stopped) { in drm_sched_entity_push_job()
498 spin_unlock(&entity->rq_lock); in drm_sched_entity_push_job()
500 DRM_ERROR("Trying to push to a killed entity\n"); in drm_sched_entity_push_job()
503 drm_sched_rq_add_entity(entity->rq, entity); in drm_sched_entity_push_job()
504 spin_unlock(&entity->rq_lock); in drm_sched_entity_push_job()
505 drm_sched_wakeup(entity->rq->sched); in drm_sched_entity_push_job()