pci_enable_device for pciaccess?

Dave Airlie airlied at gmail.com
Mon May 19 20:39:26 PDT 2008

On Tue, May 20, 2008 at 1:36 PM, Tiago Vignatti <vignatti at c3sl.ufpr.br> wrote:
> Dave Airlie escreveu:
>> Okay I've been playing with getting posting working again in master,
> Yay!
>> I can make it work on Linux if I use the OS to enable the device in
>> /sys before trying to POST it.
>> However I really think this should be pciaccess functionality, so I'd
>> like to add a pci_enable_device function to libpciaccess and call it
>> from the server before trying to POST secondary cards.
> +1
>> Long term the posting should be done before X starts but I want to fix
>> the regression for Fedora.
> Before X starts? I'd imagine a situation where someone insert a new display
> or that fancy usb video cards while the X is running. So in this case a hook
> inside the server is also needed.

No in this case I would expect the kernel to set the device up before
handing it to X via d-bus or whatever,
including posting it.

> Yes, this is what I initially thought as well. So I started nuking int10
> module inside the server and transformed in a library (which differs from
> mjg56's version which is not updated and synchronized with last xorg
> modifications). Maybe we could link it against the libpciaccess to do the
> POST/setup. I don't know, you can say it better.
>    http://cgit.freedesktop.org/~vignatti/libx86/
> (The X server side modification to use this library is trivial. Just link it
> against the library and git-rm hw/xfree/int10 basically)

Yeah ideally we could do something like that inside pciaccess, but
posting really requires VGA arbitration so we can route
the buses correctly before POST.


More information about the xorg mailing list