On Fri, 2012-06-08 at 14:38 -0400, Ben Collins wrote: > >> 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.
Something doesn't make sense. The bus address printed above are clearly not right, the .dts contains for the "ranges" entries for IO space of all 3 bridges: 0x01000000 0 0x00000000 0xf 0xf8000000 0x0 0x00010000 0x01000000 0 0x00000000 0xf 0xf8010000 0x0 0x00010000 0x01000000 0 0x00000000 0xf 0xf8020000 0x0 0x00010000 So something is wrong with the printing of the bus address, there's a stale top bit (overflow from the 64-bit substraction somewhere ?) Cheers, Ben. _______________________________________________ Linuxppc-dev mailing list [email protected] https://lists.ozlabs.org/listinfo/linuxppc-dev
