On Thu, Jul 18, 2024 at 11:22 AM Zack Rusin wrote:
> +bool vmw_user_object_is_mapped(struct vmw_user_object *uo)
> +{
> + struct vmw_bo *bo;
> +
> + if (!uo || vmw_user_object_is_null(uo))
> + return false;
> +
> + bo = vmw_user_object_buffer(uo);
> + WARN_ON
Dumb buffers can be used in kms but also through prime with gallium's
resource_from_handle. In the second case the dumb buffers can be
rendered by the GPU where with the regular DRM kms interfaces they
are mapped and written to by the CPU. Because the same buffer can
be written to by the GPU and CP
