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1da177e4 LT |
1 | #include <linux/pci.h> |
2 | #include <linux/acpi.h> | |
3 | #include <linux/init.h> | |
b33fa1f3 | 4 | #include <linux/irq.h> |
69e1a33f | 5 | #include <asm/numa.h> |
1da177e4 LT |
6 | #include "pci.h" |
7 | ||
8 | struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int domain, int busnum) | |
9 | { | |
69e1a33f AK |
10 | struct pci_bus *bus; |
11 | ||
1da177e4 LT |
12 | if (domain != 0) { |
13 | printk(KERN_WARNING "PCI: Multiple domains not supported\n"); | |
14 | return NULL; | |
15 | } | |
16 | ||
69e1a33f AK |
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; | |
1da177e4 LT |
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; | |
87bec66b | 47 | pcibios_disable_irq = acpi_pci_irq_disable; |
1da177e4 LT |
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 | while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) | |
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); |