From 49798eb2fe7240900d0a22a4e8d2b8e2f2ea6684 Mon Sep 17 00:00:00 2001
From: Jesse Barnes <jbarnes@virtuousgeek.org>
Date: Thu, 26 Sep 2013 17:55:57 -0700
Subject: [PATCH] drm/i915/vlv: use lower precision RC6 counter

And add some reg defines while we're at it.  Since the units of the RC6
residency counter are actually in CZ clocks, we want to just use the
high bits or we'll overflow too frequently.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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