drm/i915: Fix updating FBC

We need to track different state on each generation in order to detect
when we need to refresh the FBC registers.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2010-09-11 10:47:47 +01:00
commit bed4a6734b
3 changed files with 90 additions and 68 deletions