[PATCH] drm/amdgpu: use VCN firmware offset for cache window

[Christian König]

Am 18.07.19 um 17:49 schrieb Liu, Leo:
> Since we are using the signed FW now, and also using PSP firmware loading,
> but it's still potential to break driver when loading FW directly
> instead of PSP, so we should add offset.
>
> Signed-off-by: Leo Liu <leo.liu at amd.com>

Acked-by: Christian König <christian.koenig at amd.com>

> ---
>   drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c | 3 ---
>   1 file changed, 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c
> index 3cb62e448a37..88e3dedcf926 100644
> --- a/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c
> @@ -379,11 +379,8 @@ static void vcn_v2_0_mc_resume(struct amdgpu_device *adev)
>   		WREG32_SOC15(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH,
>   			upper_32_bits(adev->vcn.inst->gpu_addr));
>   		offset = size;
> -		/* No signed header for now from firmware
>   		WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0,
>   			AMDGPU_UVD_FIRMWARE_OFFSET >> 3);
> -		*/
> -		WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0, 0);
>   	}
>   
>   	WREG32_SOC15(UVD, 0, mmUVD_VCPU_CACHE_SIZE0, size);