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

[Christian König]

On 27.08.2012 14:46, Michel Dänzer wrote:
> 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. :)

I also played around with that a bit. One interesting thing we should 
keep in mind is that writing 0 actually does seem to work.

The correct golden values do work also, so I think it is a good idea to 
use them.

Christian.