drm/amdgpu: add PASID mapping for GMC v8

This way we can see the PASID in VM faults.

Signed-off-by: Christian König <christian.koenig@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/vi.h b/drivers/gpu/drm/amd/amdgpu/vi.h
index 6cc2bee..0429fe3 100644
--- a/drivers/gpu/drm/amd/amdgpu/vi.h
+++ b/drivers/gpu/drm/amd/amdgpu/vi.h
@@ -24,7 +24,7 @@
 #ifndef __VI_H__
 #define __VI_H__
 
-#define VI_FLUSH_GPU_TLB_NUM_WREG	2
+#define VI_FLUSH_GPU_TLB_NUM_WREG	3
 
 void vi_srbm_select(struct amdgpu_device *adev,
 		    u32 me, u32 pipe, u32 queue, u32 vmid);