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drm/imagination: Don't timeout job if its fence has been signaled

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Verify the job’s fence in the timeout handler; if the firmware has since
signaled completion, then report NO HANG.

Signed-off-by: Brajesh Gupta <brajesh.gupta@imgtec.com>
Reviewed-by: Matt Coster <matt.coster@imgtec.com>
Link: https://patch.msgid.link/20260519-b4-context_reset-v2-2-931018a7131d@imgtec.com
Signed-off-by: Matt Coster <matt.coster@imgtec.com>
This commit is contained in:
Brajesh Gupta 2026-05-19 13:55:27 +05:30 committed by Matt Coster
parent de1e8a590f
commit ee7cb74253
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GPG Key ID: 79BC19F3D9DE6AB0
1 changed files with 6 additions and 1 deletions
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7
drivers/gpu/drm/imagination/pvr_queue.c
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@ -851,7 +851,9 @@ static void pvr_queue_start(struct pvr_queue *queue)
* the scheduler, and re-assign parent fences in the middle.
*
* Return:
* * DRM_GPU_SCHED_STAT_RESET.
* *%DRM_GPU_SCHED_STAT_NO_HANG if the job fence has already been
* signaled, or
* *%DRM_GPU_SCHED_STAT_RESET otherwise.
*/
static enum drm_gpu_sched_stat
pvr_queue_timedout_job(struct drm_sched_job *s_job)
@ -862,6 +864,9 @@ pvr_queue_timedout_job(struct drm_sched_job *s_job)
struct pvr_job *job;
u32 job_count = 0;
if (dma_fence_is_signaled(s_job->s_fence->parent))
return DRM_GPU_SCHED_STAT_NO_HANG;
dev_err(sched->dev, "Job timeout\n");
/* Before we stop the scheduler, make sure the queue is out of any list, so