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

From: Alan Cox (
Date: Sun Jun 08 2003 - 18:16:17 EST

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

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