drm/amdgpu: move full access into amdgpu_device_ip_suspend

It will be more safe to make full-acess include both phase1 and phase2.
Then accessing special registeris wherever at phase1 or phase2 will not
block any shutdown and suspend process under virtualization.
Signed-off-by: Yintian Tao <yttao@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -1932,9 +1932,6 @@ static int amdgpu_device_ip_suspend_phase1(struct amdgpu_device *adev)
 {
 	int i, r;
 
-	if (amdgpu_sriov_vf(adev))
-		amdgpu_virt_request_full_gpu(adev, false);
-
 	amdgpu_device_set_pg_state(adev, AMD_PG_STATE_UNGATE);
 	amdgpu_device_set_cg_state(adev, AMD_CG_STATE_UNGATE);
 
@@ -1953,9 +1950,6 @@ static int amdgpu_device_ip_suspend_phase1(struct amdgpu_device *adev)
 		}
 	}
 
-	if (amdgpu_sriov_vf(adev))
-		amdgpu_virt_release_full_gpu(adev, false);
-
 	return 0;
 }
 
@@ -2007,11 +2001,17 @@ int amdgpu_device_ip_suspend(struct amdgpu_device *adev)
 {
 	int r;
 
+	if (amdgpu_sriov_vf(adev))
+		amdgpu_virt_request_full_gpu(adev, false);
+
 	r = amdgpu_device_ip_suspend_phase1(adev);
 	if (r)
 		return r;
 	r = amdgpu_device_ip_suspend_phase2(adev);
 
+	if (amdgpu_sriov_vf(adev))
+		amdgpu_virt_release_full_gpu(adev, false);
+
 	return r;
 }