So this is only build tested as i am away from hardware right now. Idea is to provide reliable way to check if swiotlb is in use for a device or not. It seems swiotlb_nr_tbl() is no longer reliable for that. Please test. Cheers, Jérôme Glisse _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel