Hi I am trying to write a PCIe linux device driver to handle PCIe switches and endpoints that show up after the Redhat 6.4 linux is already up and running. If I try to allocate the resources of the PCIe switches & endpoints between 0xF4000000 and 0xF47FFFFF everything works fine .. But this range is quite full with other devices, so I tried to extend this range to start from 0xF0000000, or from 0xD0000000 the allocation works fine, but I am unable to access devices in the extended range Anybody has idea why I am unable to use the complete 3G - 4G address range ? Is it related to some ACPI boot configuration that need to be changed, I can see in my dmesg pci_root PNP0A08:00: host bridge window [mem 0xf4000000-0xf7ffffff] pci_root PNP0A08:00: host bridge window [io 0x1000-0x7fff] pci_root PNP0A08:00: host bridge window [io 0x0000-0x03af] pci_root PNP0A08:00: host bridge window [io 0x03e0-0x0cf7] pci_root PNP0A08:00: host bridge window [io 0x0d00-0x0fff] pci_root PNP0A08:00: host bridge window [mem 0xfed00000-0xfed03fff] pci_root PNP0A08:00: host bridge window [mem 0xfed40000-0xfed44fff] pci_root PNP0A08:00: host bridge window [io 0x03b0-0x03bb] pci_root PNP0A08:00: host bridge window [io 0x03c0-0x03df] pci_root PNP0A08:00: host bridge window [mem 0x000a0000-0x000bffff] pci_root PNP0A08:01: host bridge window [mem 0xf8000000-0xfbffffff] pci_root PNP0A08:01: host bridge window [io 0x8000-0xffff] Is there a reason for this limited range ? Is it processor dependant ? Thanks -- 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
