From 4b584369c6d6b75c9dbfeeb0896853874d031897 Mon Sep 17 00:00:00 2001
From: Damien Lespiau <damien.lespiau@intel.com>
Date: Tue, 15 Oct 2013 18:55:33 +0100
Subject: [PATCH] drm/i915: Empty the circular buffer when asked for a new
 source

So we don't read out stale CRCs from a previous run left in the buffer.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Reading git-format-patch failed