drm/i915: Don't reserve compatibility fence regs in KMS mode.

The fence start is for compatibility with UMS X Servers before fence
management.  KMS X Servers only started doing tiling after fence
management appeared.

Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Eric Anholt 2010-01-26 09:43:10 -08:00
commit b397c836ef