From: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date: Thu, 14 Nov 2013 00:00:00 +0000 (+0200)
Subject: drm/i915: Fix GT wake FIFO free entries for VLV
X-Git-Tag: v3.14-rc1~47^2~90^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=46520e2baa861a02c14d3d590d5897092950c62a;p=pandora-kernel.git

drm/i915: Fix GT wake FIFO free entries for VLV

On VLV the GTFIFOCTL register has other bits besides the number of free
entries in the GT wake FIFO. Apply a mask when we read th register to
make sure we don't misinterpret the number of free FIFO entries.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[danvet: There's some unclarity about hsw, but brushed off as todays'
Bspec just acting up a bit.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

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