drm/scheduler/sched_main.c

27  * The GPU scheduler provides entities which allow userspace to push jobs
29  * The software queues have a priority among them. The scheduler selects the entities
30  * from the run queue using a FIFO. The scheduler provides dependency handling
32  * backend operations to the scheduler like submitting a job to hardware run queue,
35  * The organisation of the scheduler is the following:
37  * 1. Each hw run queue has one scheduler
38  * 2. Each scheduler has multiple run queues with different priorities
40  * 3. Each scheduler run queue has a queue of entities to schedule
68  * @rq: scheduler run queue
70  * Initializes a scheduler runqueue.
84  * @rq: scheduler run queue
85  * @entity: scheduler entity
87  * Adds a scheduler entity to the run queue.
103  * @rq: scheduler run queue
104  * @entity: scheduler entity
106  * Removes a scheduler entity from the run queue.
124  * @rq: scheduler run queue to check.
194  * @sched: scheduler instance to start the worker for
196  * Start the timeout for the given scheduler.
208  * @sched: scheduler where the timeout handling should be started.
219  * drm_sched_suspend_timeout - Suspend scheduler job timeout
221  * @sched: scheduler instance for which to suspend the timeout
223  * Suspend the delayed work timeout for the scheduler. This is done by
249  * drm_sched_resume_timeout - Resume scheduler job timeout
251  * @sched: scheduler instance for which to resume the timeout
254  * Resume the delayed work timeout for the scheduler.
326   * limit of the scheduler then the respective sched entity is marked guilty and
366  * drm_sched_stop - stop the scheduler
368  * @sched: scheduler instance
371  * Stop the scheduler and also removes and frees all completed jobs.
388 	 * now until the scheduler thread is unparked.  in drm_sched_stop()
451  * @sched: scheduler instance
498  * @sched: scheduler instance
537  * drm_sched_job_init - init a scheduler job
539  * @job: scheduler job to init
540  * @entity: scheduler entity to use
575  * drm_sched_job_cleanup - clean up scheduler job resources
577  * @job: scheduler job to clean up
587  * drm_sched_ready - is the scheduler ready
589  * @sched: scheduler instance
600  * drm_sched_wakeup - Wake up the scheduler when it is ready
602  * @sched: scheduler instance
614  * @sched: scheduler instance
665  * @sched: scheduler instance
723 			DRM_WARN("scheduler %s is not ready, skipping",  in drm_sched_pick_best()
740  * drm_sched_blocked - check if the scheduler is blocked
742  * @sched: scheduler instance
757  * drm_sched_main - main scheduler thread
759  * @param: scheduler instance
831  * drm_sched_init - Init a gpu scheduler instance
833  * @sched: scheduler instance
834  * @ops: backend operations for this scheduler
837  * @timeout: timeout value in jiffies for the scheduler
867 	/* Each scheduler will run on a seperate kernel thread */  in drm_sched_init()
872 		DRM_ERROR("Failed to create scheduler for %s.\n", name);  in drm_sched_init()
882  * drm_sched_fini - Destroy a gpu scheduler
884  * @sched: scheduler instance
886  * Tears down and cleans up the scheduler.