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.osipenko@xxxxxxxxxxxxx> --- 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
