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SubjectRe: ohci1394 problem (MMIO broken) (was 2.6.25-rc6-git6: Reported regressions from 2.6.24)
Linus Torvalds wrote:
> Ingo/Thomas - should ioremap*() perhaps take "resource_size_t" or a "u64"
> for the address (and then "__ioremap()" should probably take a PFN, not a
> physical address, and that one can remain just a "unsigned long"?)

resource_size_t seems to make sense here. In the case when we have
64-bit resources but no PAE support we should error our when the
resource is out of range rather than silently fail.

> Has anybody ever had a working 64-bit BAR on x86? Ivan? Maybe I'm missing
> something..

64-bit BAR, certainly. 64-bit BAR with a value beyond 4 GB I would find
questionable at best... I suspect the answer is "no".


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