From 9220434a8768902cd9cf248709972678b74aa8c1 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Sat, 18 Sep 2010 11:02:01 +0100
Subject: [PATCH] drm/i915: Only emit a flush request on the active ring.

When flushing the GPU domains,we emit a flush on *both* rings, even
though they share a unified cache. Only emit the flush on the currently
active ring.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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