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>

1 files changed, 1 insertions, 80 deletions

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 5e1ca3c58a7d..bcea52b90e0d 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);