chipsets also, a new X 2D + 3D driver are needed to use this but they have
been integrated into at least the X.org tree at this point and I think the
XFree86 tree. There are probably a few cleanups necessary for this driver.

From: Keith Whitwell <keith@tungstengraphics.com>
Signed-off-by: Dave Airlie <airlied@linux.ie>