Since
commit bcf9dcc1e6
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Sun Jul 15 09:42:38 2012 +0100
drm/i915: Workaround hang with BSD and forcewake on SandyBridge
and
commit 0cc2764cc4
Author: Ben Widawsky <ben@bwidawsk.net>
Date: Sat Sep 1 22:59:48 2012 -0700
drm/i915: use cpu_relax() in wait_for_atomic
these two macros are essentially the same, so unify them. We keep the
_us version since it's a nice documentation for smaller timeouts.
v2: Fixup time unit conversion, _wait_for takes ms (Ville).
Cc: Jack Winter <jbh@alchemy.lu>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
6effa33b73