On Mon, 2012-08-27 at 14:54 +0200, Christian König wrote: > 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.
Yeah, AFAICT this register can only affect performance, not correctness. -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Debian, X and DRI developer _______________________________________________ mesa-dev mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-dev
