From 6d50b0650fb46050d883d1b439a8681178cb2326 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Tue, 19 May 2015 20:32:57 +0300 Subject: [PATCH] drm/i915: Enable GTT caching on gen8 MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit GTT caching was disabled by default on gen8 due to not working with big pages. Some information suggests that it got fixed, but still GTT caching has been left disabled by default. Or could be it just meant that the default was changed to off, and hence the problem got solved. Enable GTT caching in the hopes of some performance increase. Whether or not the big pages issue has been fixed is irrelevant at this stage since we don't use big pages. This gives me a 1-2% improvement in xonotic on my BSW. Haven't tried BDW, but supposedly it has larger TLBs so might not benefit as much. On HSW GTT caching is enabled by default. Signed-off-by: Ville Syrjälä Reviewed-by: Jesse Barnes Signed-off-by: Daniel Vetter --- Reading git-format-patch failed