[Intel-gfx] [PATCH 21/21] drm/i915: enable platform support for 2M pages

[Chris Wilson]

Quoting Matthew Auld (2017-09-22 18:32:52)
> For gen8+ platforms which support the 48b PPGTT, enable platform level
> support for 2M pages. Also enable for mock testing.
> 
> Signed-off-by: Matthew Auld <matthew.auld at intel.com>
> Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
> Cc: Chris Wilson <chris at chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
-Chris