(In reply to comment #5)
> The result of the bisect is
> d4788db30a1a66255b592dd12613dda80c1443f7 is the first bad commit
> commit d4788db30a1a66255b592dd12613dda80c1443f7
> Author: Alex Deucher
> Date:   Thu Feb 28 14:40:09 2013 -0500
> 
>     drm/radeon/evergreen: add support for golden register init
>     
>     Signed-off-by: Alex Deucher

Do you think you could go through the golden register arrays for cedar and
narrow down which register(s) are problematic?