From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed, 11 Apr 2012 20:12:55 +0000 (+0200)
Subject: drm/i915: don't enable the gen6 bsd ring tail write enable on gen7
X-Git-Tag: v3.5-rc1~83^2~81^2~56
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0fd2c201482e62492f2d7dc6c2798cf7f66c9570;p=pandora-kernel.git

drm/i915: don't enable the gen6 bsd ring tail write enable on gen7

HW engineers have fixed this issue for ivb. Again, a nice cleanup
possible thanks to the more flexible ring initialization.

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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