drm/i915: Remove superfluous posting reads after clear GGTT
authorChris Wilson <chris@chris-wilson.co.uk>
Wed, 15 Feb 2017 08:43:50 +0000 (08:43 +0000)
committerChris Wilson <chris@chris-wilson.co.uk>
Wed, 15 Feb 2017 10:07:29 +0000 (10:07 +0000)
commitec151f31cd81cc99b957d6b528709d6ecfb25801
tree738e5f33a2064c7e934f4ecbffce3d1cb1def0be
parentc5d092a4293fa33559d5464c5bd58a2e3a44d6d7
drm/i915: Remove superfluous posting reads after clear GGTT

The barrier here is not required - we apply the barrier before the range
is ever reused by the GPU instead.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170215084357.19977-16-chris@chris-wilson.co.uk
drivers/gpu/drm/i915/i915_gem_gtt.c