From f1d25d37d316b8af202e51a4f82df01e12fe2661 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 12 Aug 2014 23:29:09 -0700 Subject: 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: David S. Miller --- arch/sparc/kernel/pci.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) (limited to 'arch') diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c index cc4c31e5185e..b36365f49478 100644 --- a/arch/sparc/kernel/pci.c +++ b/arch/sparc/kernel/pci.c @@ -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; } -- cgit v1.2.3-59-g8ed1b