[PATCH] i386: fix get_segment_eip() with vm86 segments
[linux-2.6.git] / arch / i386 / pci / acpi.c
1 #include <linux/pci.h>
2 #include <linux/acpi.h>
3 #include <linux/init.h>
4 #include <linux/irq.h>
5 #include <asm/numa.h>
6 #include "pci.h"
7
8 struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int domain, int busnum)
9 {
10         struct pci_bus *bus;
11
12         if (domain != 0) {
13                 printk(KERN_WARNING "PCI: Multiple domains not supported\n");
14                 return NULL;
15         }
16
17         bus = pcibios_scan_root(busnum);
18 #ifdef CONFIG_ACPI_NUMA
19         if (bus != NULL) {
20                 int pxm = acpi_get_pxm(device->handle);
21                 if (pxm >= 0) {
22                         bus->sysdata = (void *)(unsigned long)pxm_to_node(pxm);
23                         printk("bus %d -> pxm %d -> node %ld\n",
24                                 busnum, pxm, (long)(bus->sysdata));
25                 }
26         }
27 #endif
28         
29         return bus;
30 }
31
32 extern int pci_routeirq;
33 static int __init pci_acpi_init(void)
34 {
35         struct pci_dev *dev = NULL;
36
37         if (pcibios_scanned)
38                 return 0;
39
40         if (acpi_noirq)
41                 return 0;
42
43         printk(KERN_INFO "PCI: Using ACPI for IRQ routing\n");
44         acpi_irq_penalty_init();
45         pcibios_scanned++;
46         pcibios_enable_irq = acpi_pci_irq_enable;
47         pcibios_disable_irq = acpi_pci_irq_disable;
48
49         if (pci_routeirq) {
50                 /*
51                  * PCI IRQ routing is set up by pci_enable_device(), but we
52                  * also do it here in case there are still broken drivers that
53                  * don't use pci_enable_device().
54                  */
55                 printk(KERN_INFO "PCI: Routing PCI interrupts for all devices because \"pci=routeirq\" specified\n");
56                 for_each_pci_dev(dev)
57                         acpi_pci_irq_enable(dev);
58         } else
59                 printk(KERN_INFO "PCI: If a device doesn't work, try \"pci=routeirq\".  If it helps, post a report\n");
60
61 #ifdef CONFIG_X86_IO_APIC
62         if (acpi_ioapic)
63                 print_IO_APIC();
64 #endif
65
66         return 0;
67 }
68 subsys_initcall(pci_acpi_init);