[Intel-gfx] [PATCH v2 21/22] drm/i915: Only preallocate the aliasing GTT to the extents of the global GTT

[Matthew Auld]

On 10 February 2017 at 19:38, Chris Wilson <chris at chris-wilson.co.uk> wrote:
> As the aliasing GTT is only accessed via the global GTT, we will never
> use more of it than we expose via the Global GTT and so we only need to
> preallocate sufficient space within the ppgtt for the full GTT. Equally,
> if the aliasing GTT is smaller than the global GTT, we have a serious
> issue and must bail.
>
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld at intel.com>