Commit 229f4578 authored by Boris Brezillon's avatar Boris Brezillon
Browse files

drm/panfrost: Expose a helper to trigger a GPU reset 



Expose a helper to trigger a GPU reset so we can easily trigger reset
operations outside the job timeout handler.

Signed-off-by: default avatarBoris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: default avatarSteven Price <steven.price@arm.com>
Reviewed-by: default avatarAlyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210630062751.2832545-8-boris.brezillon@collabora.com
parent 7319965f

drivers/gpu/drm/panfrost/panfrost_device.h

+8 −0
Original line number Diff line number Diff line
@@ -244,4 +244,12 @@ enum drm_panfrost_exception_type { 


const char *panfrost_exception_name(u32 exception_code);



static inline void

panfrost_device_schedule_reset(struct panfrost_device *pfdev)

{

	/* Schedule a reset if there's no reset in progress. */

	if (!atomic_xchg(&pfdev->reset.pending, 1))

		schedule_work(&pfdev->reset.work);

}



#endif

drivers/gpu/drm/panfrost/panfrost_job.c

+1 −3
Original line number Diff line number Diff line
@@ -447,9 +447,7 @@ static enum drm_gpu_sched_stat panfrost_job_timedout(struct drm_sched_job 
	if (!panfrost_scheduler_stop(&pfdev->js->queue[js], sched_job))

		return DRM_GPU_SCHED_STAT_NOMINAL;



	/* Schedule a reset if there's no reset in progress. */

	if (!atomic_xchg(&pfdev->reset.pending, 1))

		schedule_work(&pfdev->reset.work);

	panfrost_device_schedule_reset(pfdev);



	return DRM_GPU_SCHED_STAT_NOMINAL;

}