From: Ben Skeggs <bskeggs@redhat.com>
Date: Wed, 29 Sep 2010 23:09:42 +0000 (+1000)
Subject: drm/nv50: prevent (IB_PUT == IB_GET) for occurring unless idle
X-Git-Tag: v2.6.37-rc1~92^2~25^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=62841ab726def838472dfaaee571a0d30a2ce1e0;p=pandora-kernel.git

drm/nv50: prevent (IB_PUT == IB_GET) for occurring unless idle

Should fix a DMA race condition I've never seen myself, but could be
the culprit in some random hangs that have been reported.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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