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

[Christian König]

Am 18.01.2017 um 06:00 schrieb 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>

Reviewed-by: Christian König <christian.koenig at amd.com> for both patches.

> ---
>   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;
>   }
>