PCI domains?

[John Baldwin]

On 21-Oct-2003 Eric Anholt wrote:
> Is there any concept of PCI domains in the kernel?
> 
> This is for the DRM, while dealing with a complaint from Linus recently:

Alpha has support for hoses which sounds like the same thing, but that's
about it.

>> Please fix the fact that modern PCI is _not_ enumerated with just "bus,
>> slot, function". A lot of machines are starting to have a "domain number", 
>> which allows fro multiple independent PCI subsystems in the same machine.
>> 
>> On linux, you can use "pci_name(pdev)" to get a truly unique descriptor of
>> the device (within the PCI subsystem). It will look something like
>> 
>>      0000:00:02.0
>> 
>> for "domain 0, bus 0, device 2, function 0".
> 
> 
> -- 
> Eric Anholt                                eta at lclark.edu          
> http://people.freebsd.org/~anholt/         anholt at FreeBSD.org
> 
> 
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-- 

John Baldwin <jhb at FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/