From 870e86ddc2d110124812b277643ed0f2767148ee Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Mon, 2 Aug 2010 16:29:44 +0200
Subject: [PATCH] drm/i915: use new macros to access the ring tail register

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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Reading git-format-patch failed