From b37aced31eb08757875306137a0ac00004f2f783 Mon Sep 17 00:00:00 2001 From: Nirmoy Das Date: Thu, 27 Feb 2020 15:34:15 +0100 Subject: drm/scheduler: implement a function to modify sched list MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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: Nirmoy Das Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/scheduler/sched_entity.c | 18 ++++++++++++++++++ include/drm/gpu_scheduler.h | 4 ++++ 2 files changed, 22 insertions(+) diff --git a/drivers/gpu/drm/scheduler/sched_entity.c b/drivers/gpu/drm/scheduler/sched_entity.c index 63bccd201b97..90fd9c30ae5a 100644 --- a/drivers/gpu/drm/scheduler/sched_entity.c +++ b/drivers/gpu/drm/scheduler/sched_entity.c @@ -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 * diff --git a/include/drm/gpu_scheduler.h b/include/drm/gpu_scheduler.h index 589be851f8a1..d8972836d248 100644 --- a/include/drm/gpu_scheduler.h +++ b/include/drm/gpu_scheduler.h @@ -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); -- cgit v1.2.3