[RFC v2] Revive the work on render-nodes branch

[Ilija Hadzic]

The following set of patches is the reword of the series
sent two weeks ago [2] that will revive the drm-render-nodes [1]
branch. Details of the original series are described in [2].

Patches in this series have been reworked (and a few prep patches
have been added) to address the comment about the planes support
(planes can now be included in the resource list for the render
node).

Consequently, the ioctls have changed to include plane support
so the libdrm side is also affected (patches for libdrm will be sent
in the series following this one).

regards,
-- Ilija

----
[1] http://airlied.livejournal.com/72187.html

[2] http://lists.freedesktop.org/archives/dri-devel/2012-March/020765.html