On Tue, 2009-02-17 at 23:25 -0500, Pavel Roskin wrote: > > Saw pci_bus_alloc_resource() allocated resource above 4G for a > > non-Prefetchable Memory Space BAR on 64-bit machine. This is not correct > > since the non-Prefetchable Memory Space and I/O Space are 32-bit width. > > Only Prefetchable Memory Space support 64-bit address. Sorry for follow-up. If we are allow prefetchable memory windows for CardBus bridges to have 64-bit addresses, then we need to program the upper part of those addresses in pci_setup_cardbus(). If it's impossible, then all CardBus memory windows should be limited to 32-bit addresses. We could introduce a new resource flag IORESOURCE_PCI_64BIT_ADDR that would be set only for resources actually allowing 64-bit addressing. -- Regards, Pavel Roskin -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
