From 51678bb9a7fb25e44f38a4f0b1bd283fec809917 Mon Sep 17 00:00:00 2001 From: Tvrtko Ursulin Date: Mon, 13 Jan 2025 10:33:40 +0000 Subject: drm/sched: Add helper to check job dependencies MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Lets isolate scheduler internals from drivers such as pvr which currently walks the dependency array to look for fences. Signed-off-by: Tvrtko Ursulin Cc: Christian König Cc: Danilo Krummrich Cc: Matthew Brost Cc: Philipp Stanner Reviewed-by: Matt Coster Acked-by: Danilo Krummrich Signed-off-by: Philipp Stanner Link: https://patchwork.freedesktop.org/patch/msgid/20250113103341.43914-1-tvrtko.ursulin@igalia.com --- drivers/gpu/drm/scheduler/sched_main.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'drivers/gpu/drm/scheduler') 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 -- cgit