Re: [Patch v2] Make PCI extended config space (MMCONFIG) a driver opt-in

Arjan van de Ven
2008-01-14T01:34:17Z

On Mon, 14 Jan 2008 00:54:34 +0000
Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:

> On Sun, 13 Jan 2008 16:28:08 -0500
> Tony Camuso <tcamuso@redhat.com> wrote:
>
> > Arjan van de Ven wrote:
> >
> > >> The PCI spec provides for conf1 as an architected solution. It's
> > >> not going away, and especially not in x86 land where Port IO is
> > >> built-in to the CPU.
>

>
> I suspect Arjan is wrong. It might be some Intel agenda but I still
> see fairly new driver reference code that is hardcoding port accesses
> even when designed for Redmond products.

I find it hard to believe that even they have their drivers do PCI config access via ports directly from the drivers,
and especially in driver reference code...

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