[PATCH 1/2] drm/amdgpu: fix reboot failure issue for virtualization

[Xiangliang Yu]

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 <Xiangliang.Yu at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 2868128..4b82081 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -1566,6 +1566,9 @@ 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);
@@ -1594,6 +1597,9 @@ int amdgpu_suspend(struct amdgpu_device *adev)
 		}
 	}
 
+	if (amdgpu_sriov_vf(adev))
+		amdgpu_virt_release_full_gpu(adev, false);
+
 	return 0;
 }
 
-- 
2.7.4