[PATCH] PPC: PCI: Fix pcibios_io_space_offset() so it works for 32-bit ptr/64-bit rsrcs

Ben Collins bcollins at ubuntu.com
Sat Jun 9 04:38:43 EST 2012

On Jun 7, 2012, at 5:32 PM, Benjamin Herrenschmidt wrote:

> On Thu, 2012-06-07 at 11:38 -0400, Ben Collins wrote:
>>> Note that oddly, the second range of bus addresses looks -more-
>> correct
>>> than the first one...
>> Except that the first one is exactly the same bus address as my bare
>> metal system:
>> pci_bus 0000:00: root bus resource [io  0xffbeb000-0xffbfafff] (bus
>> address [0x100000000-0x10000ffff])
>> I only have one PCIe RAID card on the bare metal system. Not
>> surprising I never noticed the problem on it directly.
> Can you show me the device-tree node for that PCI host bridge ?

It's a p4080ds, so it's in arch/powerpc/boot/

And that means that this bug affects a real hardware platform, so I think it makes it more valid to include it. The only reason it didn't affect me directly is because my only PCIe card doesn't have io, just mem BARs.

Bluecherry: http://www.bluecherrydvr.com/
SwissDisk : http://www.swissdisk.com/
Ubuntu    : http://www.ubuntu.com/
My Blog   : http://ben-collins.blogspot.com/

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