Commit b37aced3 authored by Nirmoy Das's avatar Nirmoy Das Committed by Alex Deucher
Browse files

drm/scheduler: implement a function to modify sched list 



Implement drm_sched_entity_modify_sched() which modifies existing
sched_list with a different one. This is going to be helpful when
userspace changes priority of a ctx/entity then the driver can switch
to the corresponding HW scheduler list for that priority.

Signed-off-by: default avatarNirmoy Das <nirmoy.das@amd.com>
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 33abcb1f

drivers/gpu/drm/scheduler/sched_entity.c

+18 −0
Original line number Diff line number Diff line
@@ -83,6 +83,24 @@ int drm_sched_entity_init(struct drm_sched_entity *entity, 
}

EXPORT_SYMBOL(drm_sched_entity_init);



/**

 * drm_sched_entity_modify_sched - Modify sched of an entity

 * @entity: scheduler entity to init

 * @sched_list: the list of new drm scheds which will replace

 *		 existing entity->sched_list

 * @num_sched_list: number of drm sched in sched_list

 */

void drm_sched_entity_modify_sched(struct drm_sched_entity *entity,

				    struct drm_gpu_scheduler **sched_list,

				    unsigned int num_sched_list)

{

	WARN_ON(!num_sched_list || !sched_list);



	entity->sched_list = sched_list;

	entity->num_sched_list = num_sched_list;

}

EXPORT_SYMBOL(drm_sched_entity_modify_sched);



/**

 * drm_sched_entity_is_idle - Check if entity is idle

 *

include/drm/gpu_scheduler.h

+4 −0
Original line number Diff line number Diff line
@@ -297,6 +297,10 @@ void drm_sched_fini(struct drm_gpu_scheduler *sched); 
int drm_sched_job_init(struct drm_sched_job *job,

		       struct drm_sched_entity *entity,

		       void *owner);

void drm_sched_entity_modify_sched(struct drm_sched_entity *entity,

				    struct drm_gpu_scheduler **sched_list,

                                   unsigned int num_sched_list);



void drm_sched_job_cleanup(struct drm_sched_job *job);

void drm_sched_wakeup(struct drm_gpu_scheduler *sched);

void drm_sched_stop(struct drm_gpu_scheduler *sched, struct drm_sched_job *bad);

CRA Git | Maintained and supported by SUSTech CRA and CCSE