[Mesa-dev] [PATCH] radeonsi: Don't write to the PA_SC_RASTER_CONFIG register.

Michel Dänzer michel at daenzer.net
Mon Aug 27 05:46:19 PDT 2012


On Fre, 2012-08-24 at 12:18 -0400, Alex Deucher wrote: 
> On Fri, Aug 24, 2012 at 11:37 AM, Michel Dänzer <michel at daenzer.net> wrote:
> > From: Michel Dänzer <michel.daenzer at amd.com>
> >
> > It should be initialized by the kernel as necessary.
> 
> Does this patch work ok after powering off the system to make sure
> there is no state in the register from a previous run?

Yes. AFAICT the VBIOS initializes the register to the 'golden' value,
then the kernel to something else. We should probably fix the latter one
way or another, but meanwhile I really don't think it makes sense for
the radeonsi driver to write 0 to it. :)


-- 
Earthling Michel Dänzer           |                   http://www.amd.com
Libre software enthusiast         |          Debian, X and DRI developer


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