drm/i915: add MMIO debug output

Useful for capturing register read/write traces to send to the hw guys.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Jesse Barnes 2010-08-13 15:50:28 -07:00 • committed by Chris Wilson
commit be282fd48e