drm/amdgpu: add VCE VM mode support

This adds VCE VM mode support from Stoney onwards. Session tracking
is an open issue, yet to be supported.

v2: Fixed warnings from checkpatch.pl

Signed-off-by: Maruthi Bayyavarapu <maruthi.bayyavarapu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/amd/amdgpu/vid.h b/drivers/gpu/drm/amd/amdgpu/vid.h
index 062ee16..f62b261 100644
--- a/drivers/gpu/drm/amd/amdgpu/vid.h
+++ b/drivers/gpu/drm/amd/amdgpu/vid.h
@@ -369,4 +369,8 @@
 #define VCE_CMD_IB_AUTO	0x00000005
 #define VCE_CMD_SEMAPHORE	0x00000006
 
+#define VCE_CMD_IB_VM           0x00000102
+#define VCE_CMD_WAIT_GE         0x00000106
+#define VCE_CMD_UPDATE_PTB      0x00000107
+#define VCE_CMD_FLUSH_TLB       0x00000108
 #endif