From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dave Airlie <airlied@gmail.com>
Subject: Re: [PATCH 12/13] drm/radeon: fix a bug with the ring syncing code
Date: Tue, 24 Apr 2012 15:04:42 +0100
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To: =?ISO-8859-1?Q?Christian_K=F6nig?= <deathsimple@vodafone.de>
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2012/4/19 Christian K=F6nig <deathsimple@vodafone.de>:
> Rings need to lock in order, otherwise
> the ring subsystem can deadlock.

No sure if its the commit or not but I was profiling on an r700 and
saw it create a semaphore for ring syncing.

surely the r700 would have no need?

Dave.