On 31 May 2018 at 12:35, Chris Wilson <[email protected]> wrote: > From: Jon Bloomfield <[email protected]> > > We can set a bit inside the ppGTT PTE to indicate a page is read-only; > writes from the GPU will be discarded. We can use this to protect pages > and in particular support read-only userptr mappings (necessary for > importing PROT_READ vma). > > Signed-off-by: Jon Bloomfield <[email protected]> > Signed-off-by: Chris Wilson <[email protected]> > Cc: Joonas Lahtinen <[email protected]> > Cc: Matthew Auld <[email protected]> > Reviewed-by: Joonas Lahtinen <[email protected]>
fwiw I didn't see any surprises with ro 2M/64K PTEs when testing locally. For the series: Reviewed-by: Matthew Auld <[email protected]> _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
