drm/amdgpu: fix reboot failure issue for virtualization

Reboot process will call HW fini functions of IP blocks. For virt,
need to send event three before hw fini and send event four after
hw fini.

Signed-off-by: Xiangliang Yu <[email protected]>
Reviewed-by: Monk Liu <[email protected]>
Reviewed-by: Christian König <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index b408a54638a4e5fb01b206da50e2f4fac33b5899..786c3c3bb48de4b73b632c34f46d571fa452d780 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -1565,6 +1565,9 @@ int amdgpu_suspend(struct amdgpu_device *adev)
 {
        int i, r;
 
+       if (amdgpu_sriov_vf(adev))
+               amdgpu_virt_request_full_gpu(adev, false);
+
        /* ungate SMC block first */
        r = amdgpu_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_SMC,
                                         AMD_CG_STATE_UNGATE);
@@ -1593,6 +1596,9 @@ int amdgpu_suspend(struct amdgpu_device *adev)
                }
        }
 
+       if (amdgpu_sriov_vf(adev))
+               amdgpu_virt_release_full_gpu(adev, false);
+
        return 0;
 }