Re: [0/4] NUMA-Q: remove PCI bus number mangling

From: William Lee Irwin III (
Date: Tue Nov 12 2002 - 16:39:06 EST

On Tue, Nov 12, 2002 at 01:29:28PM -0800, Matthew Dobson wrote:
>> I know I just sent this to you, but I've been meaning to repost this
>> to lkml anyway. Here's something I wanted to add to the generic topology
>> infrastructure for a while. pcibus_to_node()
>> Have a look at this patch, and see if it might be useful to you, ok?
>> Cheers!
>> -Matt

On Tue, Nov 12, 2002 at 01:35:04PM -0800, William Lee Irwin III wrote:
> I'll remove the bus number mangling from it so it uses ->sysdata
> instead, make it an additional stage of the patch series and convert
> arch/i386/pci/numa.c to use it instead.
> Bus number mangling has been vetoed numerous times; the agreed-upon
> method of dealing with this is stuffing arch-private information in
> ->sysdata and dispatching on that within PCI config access routines.

Also, every PCI bridge in my box has a bus number of 3 so the lookup
table will produce wrong answers every time.

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