[PATCH] drm/amdgpu: Correct the ndw of bo update mapping.

[Christian König]

Am 08.06.2018 um 07:34 schrieb Emily Deng:
> For buffer object that has shadow buffer, need twice commands.
>
> Signed-off-by: Emily Deng <Emily.Deng at amd.com>

Good catch, Reviewed-by: Christian König <christian.koenig at amd.com>.

> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 5 ++++-
>   1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> index b0eb2f5..d88687b 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> @@ -1324,7 +1324,10 @@ static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev,
>   		ndw += ncmds * 10;
>   
>   		/* extra commands for begin/end fragments */
> -		ndw += 2 * 10 * adev->vm_manager.fragment_size;
> +		if (vm->root.base.bo->shadow)
> +		        ndw += 2 * 10 * adev->vm_manager.fragment_size * 2;
> +		else
> +		        ndw += 2 * 10 * adev->vm_manager.fragment_size;
>   
>   		params.func = amdgpu_vm_do_set_ptes;
>   	}