diff options
| author | Bjorn Helgaas <bhelgaas@google.com> | 2011-10-28 16:26:46 -0600 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2012-01-06 12:11:01 -0800 |
| commit | 58de74b805312c7f5757cb654e9829bd9c1f3c69 (patch) | |
| tree | d7d502fc06c7d5d937751fe3205f7d47da467b3f /arch | |
| parent | ce78fc6b284c4ece498f6b322b020268c7f0c0e9 (diff) | |
microblaze/PCI: convert to pci_create_root_bus() for correct root bus resources
Convert from pci_create_bus() to pci_create_root_bus(). This way the root
bus resources are correct immediately. This patch doesn't fix a problem
because microblaze fixed the resources before scanning the bus, but it makes
microblaze more consistent with other architectures. It also allows us to
use the pci_scan_root_bus() path safely.
CC: Michal Simek <monstr@monstr.eu>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/microblaze/pci/pci-common.c | 30 |
1 files changed, 15 insertions, 15 deletions
diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c index 8989773ff300..e0fdab323ec5 100644 --- a/arch/microblaze/pci/pci-common.c +++ b/arch/microblaze/pci/pci-common.c @@ -1513,14 +1513,18 @@ int pcibios_enable_device(struct pci_dev *dev, int mask) return pci_enable_resources(dev, mask); } -static void __devinit pcibios_setup_phb_resources(struct pci_controller *hose) +static void __devinit pcibios_setup_phb_resources(struct pci_controller *hose, struct list_head *resources) { - struct pci_bus *bus = hose->bus; struct resource *res; int i; /* Hookup PHB IO resource */ - bus->resource[0] = res = &hose->io_resource; + res = &hose->io_resource; + + /* Fixup IO space offset */ + io_offset = (unsigned long)hose->io_base_virt - isa_io_base; + res->start = (res->start + io_offset) & 0xffffffffu; + res->end = (res->end + io_offset) & 0xffffffffu; if (!res->flags) { printk(KERN_WARNING "PCI: I/O resource not set for host" @@ -1531,6 +1535,7 @@ static void __devinit pcibios_setup_phb_resources(struct pci_controller *hose) res->end = res->start + IO_SPACE_LIMIT; res->flags = IORESOURCE_IO; } + pci_add_resource(resources, res); pr_debug("PCI: PHB IO resource = %016llx-%016llx [%lx]\n", (unsigned long long)res->start, @@ -1553,7 +1558,7 @@ static void __devinit pcibios_setup_phb_resources(struct pci_controller *hose) res->flags = IORESOURCE_MEM; } - bus->resource[i+1] = res; + pci_add_resource(resources, res); pr_debug("PCI: PHB MEM resource %d = %016llx-%016llx [%lx]\n", i, (unsigned long long)res->start, @@ -1576,32 +1581,27 @@ struct device_node *pcibios_get_phb_of_node(struct pci_bus *bus) static void __devinit pcibios_scan_phb(struct pci_controller *hose) { + LIST_HEAD(resources); struct pci_bus *bus; struct device_node *node = hose->dn; - unsigned long io_offset; - struct resource *res = &hose->io_resource; pr_debug("PCI: Scanning PHB %s\n", node ? node->full_name : "<NO NAME>"); + pcibios_setup_phb_resources(hose, &resources); + /* Create an empty bus for the toplevel */ - bus = pci_create_bus(hose->parent, hose->first_busno, hose->ops, hose); + bus = pci_create_root_bus(hose->parent, hose->first_busno, hose->ops, + hose, &resources); if (bus == NULL) { printk(KERN_ERR "Failed to create bus for PCI domain %04x\n", hose->global_number); + pci_free_resource_list(&resources); return; } bus->secondary = hose->first_busno; hose->bus = bus; - /* Fixup IO space offset */ - io_offset = (unsigned long)hose->io_base_virt - isa_io_base; - res->start = (res->start + io_offset) & 0xffffffffu; - res->end = (res->end + io_offset) & 0xffffffffu; - - /* Wire up PHB bus resources */ - pcibios_setup_phb_resources(hose); - /* Scan children */ hose->last_busno = bus->subordinate = pci_scan_child_bus(bus); } |