[PATCH v5 13/27] drm/amdgpu: When filizing the fence driver. stop scheduler first.

[Andrey Grodzovsky]

No point calling amdgpu_fence_wait_empty before stopping the
SW scheduler otherwise there is always a chance another job sneaked
in after the wait.

Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
index 34d51e962799..fd9282637549 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
@@ -533,6 +533,12 @@ void amdgpu_fence_driver_fini_hw(struct amdgpu_device *adev)
 
 		if (!ring || !ring->fence_drv.initialized)
 			continue;
+
+		/* Stop any new job submissions from sched before flushing the ring */
+		/* TODO Handle amdgpu_job_submit_direct and amdgpu_amdkfd_submit_ib */
+		if (!ring->no_scheduler)
+			drm_sched_fini(&ring->sched);
+
 		r = amdgpu_fence_wait_empty(ring);
 		if (r) {
 			/* no need to trigger GPU reset as we are unloading */
@@ -541,8 +547,7 @@ void amdgpu_fence_driver_fini_hw(struct amdgpu_device *adev)
 		if (ring->fence_drv.irq_src)
 			amdgpu_irq_put(adev, ring->fence_drv.irq_src,
 				       ring->fence_drv.irq_type);
-		if (!ring->no_scheduler)
-			drm_sched_fini(&ring->sched);
+
 		del_timer_sync(&ring->fence_drv.fallback_timer);
 	}
 }
-- 
2.25.1