[PATCH 3/8] drm/imagination: Skip check on paired job fence during job submission

Alessio Belle
2026-03-30T07:57:28Z

While submitting a paired fragment job, there is no need to manually
look for, and skip, the paired job fence, as the existing logic to
resolve dependencies to pvr_queue_fence objects will have failed to
resolve it already and continued with the next one.

Point this out where the fence is actually accessed and drop the related
check.

Signed-off-by: Alessio Belle <alessio.belle@imgtec.com>
---
drivers/gpu/drm/imagination/pvr_queue.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/imagination/pvr_queue.c b/drivers/gpu/drm/imagination/pvr_queue.c
index f1e54e6d940d..527eae1309d8 100644
--- a/drivers/gpu/drm/imagination/pvr_queue.c
+++ b/drivers/gpu/drm/imagination/pvr_queue.c
@@ -646,10 +646,6 @@ static void pvr_queue_submit_job_to_cccb(struct pvr_job *job)
if (!jfence)
continue;

- /* This fence will be placed last, as partial render fence. */
- if (is_paired_job_fence(fence, job))
- continue;
-
if (dma_fence_is_signaled(&jfence->base))
continue;

@@ -664,8 +660,13 @@ static void pvr_queue_submit_job_to_cccb(struct pvr_job *job)
}
}

- /* Partial render fence goes last. */
if (job->type == DRM_PVR_JOB_TYPE_FRAGMENT && job->paired_job) {
+ /*
+ * The loop above will only process dependencies backed by a UFO i.e. with
+ * a valid parent fence assigned, but the paired job dependency won't have
+ * one until both jobs have been submitted. Access the parent fence directly
+ * here instead, submitting it last as partial render fence.
+ */
jfence = to_pvr_queue_job_fence(job->paired_job->done_fence);
if (!WARN_ON(!jfence)) {
pvr_fw_object_get_fw_addr(jfence->queue->timeline_ufo.fw_obj,

--
2.43.0