[Nouveau] SLI support for 8800 GTX?

[Pekka Paalanen]

On Wed, 8 Jul 2009 21:43:51 +0400
Alexey Dobriyan <adobriyan at gmail.com> wrote:

> On Mon, Jun 22, 2009 at 11:35:46PM +0300, Pekka Paalanen wrote:
> > To get SLI support, we would need to have a developer with SLI hardware.
> > I do not think there is a developer even with any two cards, since the bug
> > https://bugs.freedesktop.org/show_bug.cgi?id=16897
> > is still open. Someone with interest in multicard or SLI support should
> > join the project and write the code.
> > 
> > The current status is "not implemented" and as you found out, multicard
> > really does not work at all. SLI is another story after multicard
> > support.
> 
> What can be a first first "milestone" for multicard setup?

I got some comments on what's needed in irc:
- POSTing cards (i.e. cold boot without executing the x86 BIOS code)
- maybe not VGA arbiter, maybe yes...

< airlied> the only thing nouveau needs t oworry about vgaarb is if
           you can't disable VGA decodes
< airlied> or can't discover how to disable them
< airlied> in that case you need to provide a callback to disable IRQs or
           have a very resilient IRQ handler
< airlied> that can deal with memory/io space disappearing

< darktama_> the BIOS parser can cope with earlier cards apparently,
             I started looking at making G8x work today
< marcheu> yeah it works for resume, which is virtually the same
< marcheu> but since we have other bugs, we can't have multi-card support ATM :)

Since I'm not familiar with this topic, I leave the interpretation for you.
You can poke these guys on irc :-)

-- 
Pekka Paalanen
http://www.iki.fi/pq/