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| author |   David S. Miller <davem@davemloft.net> | 2014-08-12 23:29:09 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-08-13 21:17:49 -0700 |
| commit | f1d25d37d316b8af202e51a4f82df01e12fe2661 (patch) | |
| tree | 59169536ef35250f2929cbf2bac5e430324ca619 /arch | |
| parent | sparc64: Skip bogus PCI bridge ranges. (diff) | |
| download | linux-dev-f1d25d37d316b8af202e51a4f82df01e12fe2661.tar.xz linux-dev-f1d25d37d316b8af202e51a4f82df01e12fe2661.zip | |
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 <davem@davemloft.net>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/sparc/kernel/pci.c | 32 |
1 files changed, 32 insertions, 0 deletions
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; } |