sparc/PCI: register busn_res for root buses
Add the host bridge bus number aperture to the resource list. Like the MMIO and I/O port apertures, this is used when assigning resources to hot-added devices or in the case of conflicts. [bhelgaas: changelog, fix "pci_last_busn" typo] Acked-by: "David S. Miller" <davem@davemloft.net> CC: sparclinux@vger.kernel.org Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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@ -535,7 +535,7 @@ static void __devinit of_scan_pci_bridge(struct pci_pbm_info *pbm,
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}
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bus->primary = dev->bus->number;
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bus->busn_res.end = busrange[1];
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pci_bus_insert_busn_res(bus, busrange[0], busrange[1]);
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bus->bridge_ctl = 0;
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/* parse ranges property, or cook one up by hand for Simba */
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@ -685,6 +685,10 @@ struct pci_bus * __devinit pci_scan_one_pbm(struct pci_pbm_info *pbm,
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pbm->io_space.start);
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pci_add_resource_offset(&resources, &pbm->mem_space,
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pbm->mem_space.start);
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pbm->busn.start = pbm->pci_first_busno;
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pbm->busn.end = pbm->pci_last_busno;
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pbm->busn.flags = IORESOURCE_BUS;
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pci_add_resource(&resources, &pbm->busn);
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bus = pci_create_root_bus(parent, pbm->pci_first_busno, pbm->pci_ops,
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pbm, &resources);
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if (!bus) {
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@ -693,8 +697,6 @@ struct pci_bus * __devinit pci_scan_one_pbm(struct pci_pbm_info *pbm,
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pci_free_resource_list(&resources);
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return NULL;
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}
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bus->busn_res.start = pbm->pci_first_busno;
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bus->busn_res.end = pbm->pci_last_busno;
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pci_of_scan_bus(pbm, node, bus);
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pci_bus_add_devices(bus);
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@ -97,6 +97,7 @@ struct pci_pbm_info {
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/* PBM I/O and Memory space resources. */
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struct resource io_space;
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struct resource mem_space;
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struct resource busn;
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/* Base of PCI Config space, can be per-PBM or shared. */
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unsigned long config_space;
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