drm/amdgpu: add a fence after the VM flush
This way we can track when the flush is done.
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
index 644336d..83973d0 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
@@ -155,10 +155,14 @@
if (vm) {
/* do context switch */
- amdgpu_vm_flush(ring, ib->vm_id, ib->vm_pd_addr,
- ib->gds_base, ib->gds_size,
- ib->gws_base, ib->gws_size,
- ib->oa_base, ib->oa_size);
+ r = amdgpu_vm_flush(ring, ib->vm_id, ib->vm_pd_addr,
+ ib->gds_base, ib->gds_size,
+ ib->gws_base, ib->gws_size,
+ ib->oa_base, ib->oa_size);
+ if (r) {
+ amdgpu_ring_undo(ring);
+ return r;
+ }
if (ring->funcs->emit_hdp_flush)
amdgpu_ring_emit_hdp_flush(ring);