drm/i915: enable lazy global-gtt binding

Now that everything is in place, only bind to the global gtt
when actually required. Patch split-up suggested by Chris Wilson.

Reviewed-and-tested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2012-02-15 23:50:24 +01:00
commit 0ebb982993