projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 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); |