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SubjectRe: ohci1394 problem (MMIO broken) (was 2.6.25-rc6-git6: Reported regressions from 2.6.24)
FromBenjamin Herrenschmidt <>
DateWed, 26 Mar 2008 11:12:01 +1100
On Tue, 2008-03-25 at 17:03 -0700, Yinghai Lu wrote:
> >  The good news is that I have done a patch to fix it, which has been
> >  in -mm for about a month:
> iomap-fix-64-bits-resources-on-32-bits.patch
> 
> does it support if size is 4G above, like 256G?

The patch just fixes pci_iomap to use resource_size_t, which fixes bugs
with MMIO addresses/size being cropped. It doesn't fix some limitations
we still, I think, have in the PCI code with 64 bits BARs on 32 bits
platforms (that we could, in fact, probably remove when resource_size_t
is 64 bits but we haven't done it yet, at least as far as I remember).

Ben.


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