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SubjectRe: [PATCH 0/4] PCI legacy I/O port free driver (take 3)
Andi Kleen wrote:
> On Monday 27 February 2006 23:23, Jeff Garzik wrote:
>>Or do you have another way of avoiding unused resource allocation?
>>Fix the [firmware | device load order] to allocate I/O ports first to
>>the hardware that only supports IO port accesses.
> How should the firmware know what hardware needs io ports and what hardware
> doesn't? I don't think it will scale well to put long lists of PCI-IDs into
> their firmware.

Its trivial to detect PCI hardware that doesn't support MMIO, the
"IO-only" hardware Grant mentioned...


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