drm/amdgpu: do not disable SMU on vm reboot

For passthrough device,  we do baco reset after 1st vm boot so
if we disable SMU on 1st VM shutdown baco reset will fail for
2nd vm boot.

Signed-off-by: Nirmoy Das <[email protected]>
Acked-by: Evan Quan <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

Author: Nirmoy Das

drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c

@@ -1186,7 +1186,8 @@ amdgpu_pci_shutdown(struct pci_dev *pdev)
 	 * unfortunately we can't detect certain
 	 * hypervisors so just do this all the time.
 	 */
-	adev->mp1_state = PP_MP1_STATE_UNLOAD;
+	if (!amdgpu_passthrough(adev))
+		adev->mp1_state = PP_MP1_STATE_UNLOAD;
 	amdgpu_device_ip_suspend(adev);
 	adev->mp1_state = PP_MP1_STATE_NONE;
 }