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    Subject[PATCH 14/24] PCI, powerpc: Register busn_res for root buses
    Date
    Signed-off-by: Yinghai Lu <yinghai@kernel.org>
    Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
    Cc: Paul Mackerras <paulus@samba.org>
    Cc: linuxppc-dev@lists.ozlabs.org
    ---
    arch/powerpc/include/asm/pci-bridge.h | 1 +
    arch/powerpc/kernel/pci-common.c | 10 +++++++++-
    2 files changed, 10 insertions(+), 1 deletions(-)

    diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h
    index 5d48765..11cebf0 100644
    --- a/arch/powerpc/include/asm/pci-bridge.h
    +++ b/arch/powerpc/include/asm/pci-bridge.h
    @@ -30,6 +30,7 @@ struct pci_controller {
    int first_busno;
    int last_busno;
    int self_busno;
    + struct resource busn;

    void __iomem *io_base_virt;
    #ifdef CONFIG_PPC64
    diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
    index 910b9de..ee8c0c9 100644
    --- a/arch/powerpc/kernel/pci-common.c
    +++ b/arch/powerpc/kernel/pci-common.c
    @@ -1648,6 +1648,11 @@ void __devinit pcibios_scan_phb(struct pci_controller *hose)
    /* Wire up PHB bus resources */
    pcibios_setup_phb_resources(hose, &resources);

    + hose->busn.start = hose->first_busno;
    + hose->busn.end = hose->last_busno;
    + hose->busn.flags = IORESOURCE_BUS;
    + pci_add_resource(&resources, &hose->busn);
    +
    /* Create an empty bus for the toplevel */
    bus = pci_create_root_bus(hose->parent, hose->first_busno,
    hose->ops, hose, &resources);
    @@ -1670,8 +1675,11 @@ void __devinit pcibios_scan_phb(struct pci_controller *hose)
    of_scan_bus(node, bus);
    }

    - if (mode == PCI_PROBE_NORMAL)
    + if (mode == PCI_PROBE_NORMAL) {
    + pci_bus_update_busn_res_end(bus, 255);
    hose->last_busno = bus->subordinate = pci_scan_child_bus(bus);
    + pci_bus_update_busn_res_end(bus, bus->subordinate);
    + }

    /* Platform gets a chance to do some global fixups before
    * we proceed to resource allocation
    --
    1.7.7


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