[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.

Ok, with these applied (by hand) my sparc64 workstation seems to still
be working with the radeon driver.

But I'm still not comfortable enabling this stuff on non-X86.

There have been Xorg bugs in the past that ate people's disks because
parts of Xorg disabled the IDE controller device and I do not want a
repeat performance.