[PATCH] drm/amdgpu: fix the wrong value of UVD bo size

[Christian König]

Am 23.08.2016 um 08:20 schrieb jimqu:
> Driver allocate bo for restore UVD fw ,cache, stack , etc.
> the firmware size is not only ucode size but the ucode and header.

Nope that isn't correct. Only the firmware is copied to the BO, not the 
header. See amdgpu_uvd_resume().

Saying this we should probably use the length from the header instead of 
calculating it manually again in amdgpu_uvd_resume().

Christian.

>
> Change-Id: I886c099fa123c4814de9b7db3559c30e7b41fd1b
> Signed-off-by: JimQu <Jim.Qu at amd.com>
> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
> index 533d702..13ad44e 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
> @@ -198,7 +198,7 @@ int amdgpu_uvd_sw_init(struct amdgpu_device *adev)
>   		DRM_ERROR("POLARIS10/11 UVD firmware version %hu.%hu is too old.\n",
>   			  version_major, version_minor);
>   
> -	bo_size = AMDGPU_GPU_PAGE_ALIGN(le32_to_cpu(hdr->ucode_size_bytes) + 8)
> +	bo_size = AMDGPU_GPU_PAGE_ALIGN(le32_to_cpu(adev->uvd.fw->size) + 8)
>   		  +  AMDGPU_UVD_STACK_SIZE + AMDGPU_UVD_HEAP_SIZE
>   		  +  AMDGPU_UVD_SESSION_SIZE * adev->uvd.max_handles;
>   	r = amdgpu_bo_create_kernel(adev, bo_size, PAGE_SIZE,