Re: Prefered method to map PCI memory into userspace.

[Andi Kleen]

"David S. Miller" <davem@xxxxxxxxxx> writes:

> If someone is looking for something to do, it would be incredibly
> value to make it so that all arches support this, and in particular
> get right the case of mmap()'ing the PCI host bridge.
> 
> If this were done, the PCI domain code in xfree86 could be enabled
> for all Linux platforms, not just the ones that have this implemented
> properly.

What semantics would it have? Can the "seek offset" just be the 
bus address?

If yes then it would be trivial to implement for x86/x86-64

-andi
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