From: Zou Nan hai <nanhai.zou@intel.com>
Date: Tue, 2 Nov 2010 08:31:01 +0000 (+0800)
Subject: drm/i915: SNB BLT workaround
X-Git-Tag: v2.6.38-rc1~419^2~23^2~129
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8d19215be8254f4f75e9c5a0d28345947b0382db;p=pandora-kernel.git

drm/i915: SNB BLT workaround

On some stepping of SNB cpu, the first command to be parsed in BLT
command streamer should be MI_BATCHBUFFER_START otherwise the GPU
may hang.

Signed-off-by: Zou Nan hai <nanhai.zou@intel.com>
[ickle: rebased for -next]
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---

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