agp/intel-gtt: export the scratch page dma address
authorDaniel Vetter <daniel.vetter@ffwll.ch>
Thu, 9 Feb 2012 16:15:44 +0000 (17:15 +0100)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Thu, 9 Feb 2012 20:23:18 +0000 (21:23 +0100)
commit50a4c4a94d24fe13167e3ab1dc1486623369c31a
tree6499c1453002d9b61dd5ab9d9d33ab2cb648111f
parent7e3b8737e719c4de7dd79b096b80ece444b2f0ba
agp/intel-gtt: export the scratch page dma address

To implement a PPGTT for drm/i915 that fully aliases the GTT, we also
need to properly alias the scratch page.

Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Tested-by: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/char/agp/intel-gtt.c
include/drm/intel-gtt.h