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Diffstat (limited to 'arch/x86/pci/common.c')
-rw-r--r--arch/x86/pci/common.c128
1 files changed, 16 insertions, 112 deletions
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 981c2dbd72cc..d491deddebae 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -456,19 +456,25 @@ void __init dmi_check_pciprobe(void)
dmi_check_system(pciprobe_dmi_table);
}
-struct pci_bus *pcibios_scan_root(int busnum)
+void pcibios_scan_root(int busnum)
{
- struct pci_bus *bus = NULL;
+ struct pci_bus *bus;
+ struct pci_sysdata *sd;
+ LIST_HEAD(resources);
- while ((bus = pci_find_next_bus(bus)) != NULL) {
- if (bus->number == busnum) {
- /* Already scanned */
- return bus;
- }
+ sd = kzalloc(sizeof(*sd), GFP_KERNEL);
+ if (!sd) {
+ printk(KERN_ERR "PCI: OOM, skipping PCI bus %02x\n", busnum);
+ return;
+ }
+ sd->node = x86_pci_root_bus_node(busnum);
+ x86_pci_root_bus_resources(busnum, &resources);
+ printk(KERN_DEBUG "PCI: Probing PCI hardware (bus %02x)\n", busnum);
+ bus = pci_scan_root_bus(NULL, busnum, &pci_root_ops, sd, &resources);
+ if (!bus) {
+ pci_free_resource_list(&resources);
+ kfree(sd);
}
-
- return pci_scan_bus_on_node(busnum, &pci_root_ops,
- get_mp_bus_to_node(busnum));
}
void __init pcibios_set_cache_line_size(void)
@@ -677,105 +683,3 @@ int pci_ext_cfg_avail(void)
else
return 0;
}
-
-struct pci_bus *pci_scan_bus_on_node(int busno, struct pci_ops *ops, int node)
-{
- LIST_HEAD(resources);
- struct pci_bus *bus = NULL;
- struct pci_sysdata *sd;
-
- /*
- * Allocate per-root-bus (not per bus) arch-specific data.
- * TODO: leak; this memory is never freed.
- * It's arguable whether it's worth the trouble to care.
- */
- sd = kzalloc(sizeof(*sd), GFP_KERNEL);
- if (!sd) {
- printk(KERN_ERR "PCI: OOM, skipping PCI bus %02x\n", busno);
- return NULL;
- }
- sd->node = node;
- x86_pci_root_bus_resources(busno, &resources);
- printk(KERN_DEBUG "PCI: Probing PCI hardware (bus %02x)\n", busno);
- bus = pci_scan_root_bus(NULL, busno, ops, sd, &resources);
- if (!bus) {
- pci_free_resource_list(&resources);
- kfree(sd);
- }
-
- return bus;
-}
-
-struct pci_bus *pci_scan_bus_with_sysdata(int busno)
-{
- return pci_scan_bus_on_node(busno, &pci_root_ops, -1);
-}
-
-/*
- * NUMA info for PCI busses
- *
- * Early arch code is responsible for filling in reasonable values here.
- * A node id of "-1" means "use current node". In other words, if a bus
- * has a -1 node id, it's not tightly coupled to any particular chunk
- * of memory (as is the case on some Nehalem systems).
- */
-#ifdef CONFIG_NUMA
-
-#define BUS_NR 256
-
-#ifdef CONFIG_X86_64
-
-static int mp_bus_to_node[BUS_NR] = {
- [0 ... BUS_NR - 1] = -1
-};
-
-void set_mp_bus_to_node(int busnum, int node)
-{
- if (busnum >= 0 && busnum < BUS_NR)
- mp_bus_to_node[busnum] = node;
-}
-
-int get_mp_bus_to_node(int busnum)
-{
- int node = -1;
-
- if (busnum < 0 || busnum > (BUS_NR - 1))
- return node;
-
- node = mp_bus_to_node[busnum];
-
- /*
- * let numa_node_id to decide it later in dma_alloc_pages
- * if there is no ram on that node
- */
- if (node != -1 && !node_online(node))
- node = -1;
-
- return node;
-}
-
-#else /* CONFIG_X86_32 */
-
-static int mp_bus_to_node[BUS_NR] = {
- [0 ... BUS_NR - 1] = -1
-};
-
-void set_mp_bus_to_node(int busnum, int node)
-{
- if (busnum >= 0 && busnum < BUS_NR)
- mp_bus_to_node[busnum] = (unsigned char) node;
-}
-
-int get_mp_bus_to_node(int busnum)
-{
- int node;
-
- if (busnum < 0 || busnum > (BUS_NR - 1))
- return 0;
- node = mp_bus_to_node[busnum];
- return node;
-}
-
-#endif /* CONFIG_X86_32 */
-
-#endif /* CONFIG_NUMA */