[Nouveau] GM206 support?

[Andy Lutomirski]

On Fri, Feb 13, 2015 at 9:52 PM, Ilia Mirkin <imirkin at alum.mit.edu> wrote:
> On Fri, Feb 13, 2015 at 8:59 PM, Andy Lutomirski <luto at amacapital.net> wrote:
>> My new GTX 960 (GM206, I think) says:
>>
>> [   10.329351] nouveau ![  DEVICE][0000:09:00.0] unknown Maxwell chipset
>> [   10.329355] nouveau E[  DEVICE][0000:09:00.0] unknown chipset, 0x126010a1
>> [   10.329356] nouveau E[     DRM] failed to create 0x00000080, -22
>> [   10.330129] nouveau: probe of 0000:09:00.0 failed with error -22
>>
>> Hacking up nouveau so that it treats it like a GM204 doesn't work.
>
> What happens if you just drop the 0x126 next to the 0x124 in
> engine/device/gm100.c ?
>
>> Are there any near-term plans to support this card?
>
> I don't know of anyone with the hw... maybe Ben got one? If you're
> interested in helping, the kernel logs from the above experiment + an
> mmiotrace of the blob drivers (see
> https://wiki.ubuntu.com/X/MMIOTracing) + vbios (see
> http://nouveau.freedesktop.org/wiki/DumpingVideoBios/).
>
> I assume you're on a recent kernel? You need 3.19 for the GM204 stuff
> to work in the first place.

Neither 3.19 nor 4.0-rcsomething works.

I put an mmio trace (X startup and glxgears) and a vbios dump here:

http://web.mit.edu/luto/www/GM206/

Thanks,
Andy