drm/i915: Add untraced register read/write interface

This will be used later to hide the frequently written registers
from debug traces in order to increase the signal-to-noise.

Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Yuanhan Liu 2010-11-08 09:56:37 +00:00 • committed by Chris Wilson
commit 65e5ecb066