Re: ohci1394 problem (MMIO broken) (was 2.6.25-rc6-git6: Reportedregressions from 2.6.24)
From: H. Peter Anvin
Date: Sat Mar 22 2008 - 18:02:20 EST
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".
-hpa
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