From 116f2b6da868dec7539103574d0421cd6221e931 Mon Sep 17 00:00:00 2001
From: Chia-I Wu <olv@lunarg.com>
Date: Tue, 28 Jan 2014 13:29:34 +0800
Subject: [PATCH] drm/i915: enable HiZ Raw Stall Optimization on IVB
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The optimization helps IVB too.  No piglit regression.

Signed-off-by: Chia-I Wu <olv@lunarg.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Reading git-format-patch failed