diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c index d172e3158880..a48be16ab84f 100644 --- a/drivers/gpu/drm/scheduler/sched_main.c +++ b/drivers/gpu/drm/scheduler/sched_main.c @@ -984,6 +984,29 @@ int drm_sched_job_add_implicit_dependencies(struct drm_sched_job *job, } EXPORT_SYMBOL(drm_sched_job_add_implicit_dependencies); +/** + * drm_sched_job_has_dependency - check whether fence is the job's dependency + * @job: scheduler job to check + * @fence: fence to look for + * + * Returns: + * True if @fence is found within the job's dependencies, or otherwise false. + */ +bool drm_sched_job_has_dependency(struct drm_sched_job *job, + struct dma_fence *fence) +{ + struct dma_fence *f; + unsigned long index; + + xa_for_each(&job->dependencies, index, f) { + if (f == fence) + return true; + } + + return false; +} +EXPORT_SYMBOL(drm_sched_job_has_dependency); + /** * drm_sched_job_cleanup - clean up scheduler job resources * @job: scheduler job to clean up diff --git a/include/drm/gpu_scheduler.h b/include/drm/gpu_scheduler.h index 86b1814191a2..9a4f63469de5 100644 --- a/include/drm/gpu_scheduler.h +++ b/include/drm/gpu_scheduler.h @@ -562,7 +562,8 @@ int drm_sched_job_add_resv_dependencies(struct drm_sched_job *job, int drm_sched_job_add_implicit_dependencies(struct drm_sched_job *job, struct drm_gem_object *obj, bool write); - +bool drm_sched_job_has_dependency(struct drm_sched_job *job, + struct dma_fence *fence); void drm_sched_entity_modify_sched(struct drm_sched_entity *entity, struct drm_gpu_scheduler **sched_list,