[Intel-gfx] [PATCH 3/4] drm/i915/gtt: Reuse the read-only 64KiB scratch page and directories

[Matthew Auld]

On Mon, 29 Oct 2018 at 11:00, Chris Wilson <chris at chris-wilson.co.uk> wrote:
>
> If we can prevent stray writes from landing in the scratch page, we can
> reuse the same page and same scratch PT for all contexts without fear of
> information leaks and side-channels.
>
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Matthew Auld <matthew.auld at intel.com>
Reviewed-by: Matthew Auld <matthew.auld at intel.com>