[Intel-gfx] [PATCH 1/4] drm/i915/selftests: Test vm isolation

[Matthew Auld]

On Mon, 29 Oct 2018 at 10:59, Chris Wilson <chris at chris-wilson.co.uk> wrote:
>
> The vm of two contexts are supposed to be independent, such that a stray
> write by one cannot be detected by another. Normally the GTT is filled
> explicitly by userspace, but the space in between objects is filled with
> a scratch page -- and that scratch page should be able to form an
> inter-context backchannel.
>
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Matthew Auld <matthew.auld at intel.com>
> Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
Reviewed-by: Matthew Auld <matthew.auld at intel.com>