Panfrost IRQ handler may stuck for a long time, for example this happens
when there is a bad HDMI connection and HDMI handler takes a long time to
finish processing, holding Panfrost. Make Panfrost's job timeout handler
to sync IRQ before checking fence signal status in order to prevent
spurious job timeouts due to a slow IRQ processing.
Signed-off-by: Dmitry Osipenko <dmitry.osipe...@collabora.com>
---
drivers/gpu/drm/panfrost/panfrost_job.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/panfrost/panfrost_job.c
b/drivers/gpu/drm/panfrost/panfrost_job.c
index dbc597ab46fb..a356163da22d 100644
--- a/drivers/gpu/drm/panfrost/panfrost_job.c
+++ b/drivers/gpu/drm/panfrost/panfrost_job.c
@@ -713,6 +713,8 @@ static enum drm_gpu_sched_stat panfrost_job_timedout(struct
drm_sched_job
struct panfrost_device *pfdev = job->pfdev;
int js = panfrost_job_get_slot(job);
+ synchronize_irq(pfdev->js->irq);
+
/*
* If the GPU managed to complete this jobs fence, the timeout is
* spurious. Bail out.
--
2.41.0
