drm/imagination: Use the drm_sched_job_has_dependency helper

Instead of manually peeking into the DRM scheduler implementation details
lets use the previously added helper.

Signed-off-by: Tvrtko Ursulin <[email protected]>
Cc: Christian König <[email protected]>
Cc: Danilo Krummrich <[email protected]>
Cc: Matthew Brost <[email protected]>
Cc: Philipp Stanner <[email protected]>
Cc: Frank Binns <[email protected]>
Cc: Matt Coster <[email protected]>
Reviewed-by: Matt Coster <[email protected]>
Signed-off-by: Philipp Stanner <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

Author: Tvrtko Ursulin

drivers/gpu/drm/imagination/pvr_job.c

@@ -597,8 +597,6 @@ update_job_resvs_for_each(struct pvr_job_data *job_data, u32 job_count)
 static bool can_combine_jobs(struct pvr_job *a, struct pvr_job *b)
 {
 	struct pvr_job *geom_job = a, *frag_job = b;
-	struct dma_fence *fence;
-	unsigned long index;
 
 	/* Geometry and fragment jobs can be combined if they are queued to the
 	 * same context and targeting the same HWRT.
@@ -609,13 +607,9 @@ static bool can_combine_jobs(struct pvr_job *a, struct pvr_job *b)
 	    a->hwrt != b->hwrt)
 		return false;
 
-	xa_for_each(&frag_job->base.dependencies, index, fence) {
-		/* We combine when we see an explicit geom -> frag dep. */
-		if (&geom_job->base.s_fence->scheduled == fence)
-			return true;
-	}
-
-	return false;
+	/* We combine when we see an explicit geom -> frag dep. */
+	return drm_sched_job_has_dependency(&frag_job->base,
+					    &geom_job->base.s_fence->scheduled);
 }
 
 static struct dma_fence *