From: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date: Thu, 21 Nov 2013 19:29:45 +0000 (+0200)
Subject: drm/i915: Don't set the fence number in DPFC_CTL on SNB
X-Git-Tag: v3.14-rc1~47^2~90^2~33
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d629336b6af9ff214e9d1e7224946a000fc8f70f;p=pandora-kernel.git

drm/i915: Don't set the fence number in DPFC_CTL on SNB

SNB has another register where the actual FBC CPU fence number is
stored. The documenation explicitly states that the fence number
in DPFC_CTL must be 0 on SNB. And in fact when it's not zero,
the GTT tracking simply doesn't work.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

Reading git-diff-tree failed