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author | Yinghai Lu <yinghai@kernel.org> | 2012-04-02 18:31:53 -0700 |
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committer | Bjorn Helgaas <bhelgaas@google.com> | 2012-04-30 13:36:14 -0600 |
commit | 610929e119b2166167f4f8fce85408472e77a16a (patch) | |
tree | a9d178fade610b5eacf5fa534d578f29afaab888 /drivers/pci/probe.c | |
parent | 66f75a5d028beaf67c931435fdc3e7823125730c (diff) | |
download | op-kernel-dev-610929e119b2166167f4f8fce85408472e77a16a.zip op-kernel-dev-610929e119b2166167f4f8fce85408472e77a16a.tar.gz |
PCI: move host bridge-related code to host-bridge.c
Move host bridge-related code from probe.c to a new host-bridge.c.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/probe.c')
-rw-r--r-- | drivers/pci/probe.c | 81 |
1 files changed, 1 insertions, 80 deletions
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 5e1ca3c..bcea52b 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -15,13 +15,10 @@ #define CARDBUS_LATENCY_TIMER 176 /* secondary latency timer */ #define CARDBUS_RESERVE_BUSNR 3 -static LIST_HEAD(pci_host_bridges); - /* Ugh. Need to stop exporting this to modules. */ LIST_HEAD(pci_root_buses); EXPORT_SYMBOL(pci_root_buses); - static int find_anything(struct device *dev, void *data) { return 1; @@ -44,82 +41,6 @@ int no_pci_devices(void) } EXPORT_SYMBOL(no_pci_devices); -static struct pci_host_bridge *pci_host_bridge(struct pci_dev *dev) -{ - struct pci_bus *bus; - struct pci_host_bridge *bridge; - - bus = dev->bus; - while (bus->parent) - bus = bus->parent; - - list_for_each_entry(bridge, &pci_host_bridges, list) { - if (bridge->bus == bus) - return bridge; - } - - return NULL; -} - -static bool resource_contains(struct resource *res1, struct resource *res2) -{ - return res1->start <= res2->start && res1->end >= res2->end; -} - -void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, - struct resource *res) -{ - struct pci_host_bridge *bridge = pci_host_bridge(dev); - struct pci_host_bridge_window *window; - resource_size_t offset = 0; - - list_for_each_entry(window, &bridge->windows, list) { - if (resource_type(res) != resource_type(window->res)) - continue; - - if (resource_contains(window->res, res)) { - offset = window->offset; - break; - } - } - - region->start = res->start - offset; - region->end = res->end - offset; -} -EXPORT_SYMBOL(pcibios_resource_to_bus); - -static bool region_contains(struct pci_bus_region *region1, - struct pci_bus_region *region2) -{ - return region1->start <= region2->start && region1->end >= region2->end; -} - -void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res, - struct pci_bus_region *region) -{ - struct pci_host_bridge *bridge = pci_host_bridge(dev); - struct pci_host_bridge_window *window; - struct pci_bus_region bus_region; - resource_size_t offset = 0; - - list_for_each_entry(window, &bridge->windows, list) { - if (resource_type(res) != resource_type(window->res)) - continue; - - bus_region.start = window->res->start - window->offset; - bus_region.end = window->res->end - window->offset; - - if (region_contains(&bus_region, region)) { - offset = window->offset; - break; - } - } - - res->start = region->start + offset; - res->end = region->end + offset; -} -EXPORT_SYMBOL(pcibios_bus_to_resource); - /* * PCI Bus Class */ @@ -1732,7 +1653,7 @@ struct pci_bus *pci_create_root_bus(struct device *parent, int bus, } down_write(&pci_bus_sem); - list_add_tail(&bridge->list, &pci_host_bridges); + add_to_pci_host_bridges(bridge); list_add_tail(&b->node, &pci_root_buses); up_write(&pci_bus_sem); |