pci_enable_device for pciaccess?

[Dave Airlie]

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.

Dave.