On Sun, Oct 28, 2012 at 10:04 AM, Chris Wilson <chris at chris-wilson.co.uk> wrote: > We do. However, we don't catch userspace changing the tiling on an > existing fb (unless actually pinned)... The extra level of defense is > certainly welcome, and provides documentation at all levels on the known > capabilities of the hw. (The only downside is that we have more guards to > fixup if those ever change, but unlikely ;) I've sent a new version of this one then, turns out it be useful to catch cases where one changes the tiling mode after the creation of the fb. -- Damien