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Commit f1d25d37 authored by David S. Miller's avatar David S. Miller
Browse files

sparc64: Properly claim resources as each PCI bus is probed. 



Perform a pci_claim_resource() on all valid resources discovered
during the OF device tree scan.

Based almost entirely upon the PCI OF bus probing code which does
the same thing there.

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4afba24e

arch/sparc/kernel/pci.c

+32 −0
Original line number Diff line number Diff line
@@ -617,6 +617,36 @@ static void pci_bus_register_of_sysfs(struct pci_bus *bus) 
		pci_bus_register_of_sysfs(child_bus);

}



static void pci_claim_bus_resources(struct pci_bus *bus)

{

	struct pci_bus *child_bus;

	struct pci_dev *dev;



	list_for_each_entry(dev, &bus->devices, bus_list) {

		int i;



		for (i = 0; i < PCI_NUM_RESOURCES; i++) {

			struct resource *r = &dev->resource[i];



			if (r->parent || !r->start || !r->flags)

				continue;



			if (ofpci_verbose)

				printk("PCI: Claiming %s: "

				       "Resource %d: %016llx..%016llx [%x]\n",

				       pci_name(dev), i,

				       (unsigned long long)r->start,

				       (unsigned long long)r->end,

				       (unsigned int)r->flags);



			pci_claim_resource(dev, i);

		}

	}



	list_for_each_entry(child_bus, &bus->children, node)

		pci_claim_bus_resources(child_bus);

}



struct pci_bus *pci_scan_one_pbm(struct pci_pbm_info *pbm,

				 struct device *parent)

{
@@ -647,6 +677,8 @@ struct pci_bus *pci_scan_one_pbm(struct pci_pbm_info *pbm, 
	pci_bus_add_devices(bus);

	pci_bus_register_of_sysfs(bus);



	pci_claim_bus_resources(bus);



	return bus;

}