[PATCH 17/29] drm/amdgpu/sdma7: re-emit unprocessed state on ring reset

[Alex Deucher]

Re-emit the unprocessed state after resetting the queue.

Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/sdma_v7_0.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v7_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v7_0.c
index 76ae1a7849a56..318f446acce0e 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v7_0.c
@@ -821,6 +821,8 @@ static int sdma_v7_0_reset_queue(struct amdgpu_ring *ring,
 		return -EINVAL;
 	}
 
+	amdgpu_ring_backup_unprocessed_commands(ring, &job->hw_fence.base, true);
+
 	r = amdgpu_mes_reset_legacy_queue(adev, ring, job->vmid, true);
 	if (r)
 		return r;
@@ -828,9 +830,16 @@ static int sdma_v7_0_reset_queue(struct amdgpu_ring *ring,
 	r = sdma_v7_0_gfx_resume_instance(adev, i, true);
 	if (r)
 		return r;
+
 	dma_fence_set_error(&job->base.s_fence->finished, -ETIME);
-	amdgpu_fence_driver_force_completion(ring);
+	/* signal the fence of the bad job */
+	amdgpu_fence_driver_guilty_force_completion(&job->hw_fence.base);
 	atomic_inc(&ring->adev->gpu_reset_counter);
+	r = amdgpu_ring_reemit_unprocessed_commands(ring);
+	if (r)
+		/* if we fail to reemit, force complete all fences */
+		amdgpu_fence_driver_force_completion(ring);
+
 	return 0;
 }
 
-- 
2.49.0