[PATCH 0/3] multicard revamp

[David Miller]

From: Tiago Vignatti <vignatti at freedesktop.org>
Date: Sun, 03 May 2009 23:09:35 -0300

> This set reintroduces the multicard functionality in post-pciaccess Xorg.
> 
> We're currently living in a completely mess regarding the resources
> access control. Some accesses are done by libpciaccess, other by Xorg
> and other simply don't exist yet (e.g. arbitration of legacy VGA). We
> can discuss about a beautiful redesign later. In this moment I just want
> to put back the multiple card, multiple head functionality.
> 
> This set is a way to solve the following:
>      https://bugs.freedesktop.org/show_bug.cgi?id=18160
>      https://bugs.freedesktop.org/show_bug.cgi?id=18839
>      https://bugs.freedesktop.org/show_bug.cgi?id=18321
>      https://bugs.freedesktop.org/show_bug.cgi?id=20849
>      https://bugzilla.redhat.com/show_bug.cgi?id=454864
> 
> DISCLAIMER: it was not extensively stressed on different environments.

I'm pretty sure this is going to hose sparc and possibly
powerpc too.

I'm going to try and find time to test your patches, however
I'm not optimistic and it would be a real shame to take some
steps backwards wrt. non-x86 just to get multihead back. :-/