Re: [PATCH] [3/3] PCI segment support

[Alan Cox]

On Sul, 2003-06-08 at 22:33, Russell King wrote:
> On Sun, Jun 08, 2003 at 05:43:51PM +0100, Matthew Wilcox wrote:
> > I envisage ia64 will always turn on CONFIG_PCI_DOMAINS but x86 might
> > well have it as a user question.  I suspect most architectures would
> > never turn it on (yeah, I'm going to design an embedded ARM box with
> > multiple PCI domains.  sure.)
> 
> Don't be so sure.  There's already ARM implementations where there are
> multiple PCI buses hanging off the host bridge - mostly stuff from Intel
> though.

And x86 also, although its normally multiple pci host bridges hanging
off an internal faster bus with a large collection of magic hardware
wizardry to make it look like one