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 <[email protected]> wrote:
From: Michel Dänzer <[email protected]>
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.
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