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Commit | Line | Data |
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1da177e4 LT |
1 | #include <linux/pci.h> |
2 | #include <linux/acpi.h> | |
3 | #include <linux/init.h> | |
4 | #include <linux/irq.h> | |
5 | #include <asm/hw_irq.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 | if (domain != 0) { | |
11 | printk(KERN_WARNING "PCI: Multiple domains not supported\n"); | |
12 | return NULL; | |
13 | } | |
14 | ||
15 | return pcibios_scan_root(busnum); | |
16 | } | |
17 | ||
18 | extern int pci_routeirq; | |
19 | static int __init pci_acpi_init(void) | |
20 | { | |
21 | struct pci_dev *dev = NULL; | |
22 | ||
23 | if (pcibios_scanned) | |
24 | return 0; | |
25 | ||
26 | if (acpi_noirq) | |
27 | return 0; | |
28 | ||
29 | printk(KERN_INFO "PCI: Using ACPI for IRQ routing\n"); | |
30 | acpi_irq_penalty_init(); | |
31 | pcibios_scanned++; | |
32 | pcibios_enable_irq = acpi_pci_irq_enable; | |
33 | ||
34 | if (pci_routeirq) { | |
35 | /* | |
36 | * PCI IRQ routing is set up by pci_enable_device(), but we | |
37 | * also do it here in case there are still broken drivers that | |
38 | * don't use pci_enable_device(). | |
39 | */ | |
40 | printk(KERN_INFO "PCI: Routing PCI interrupts for all devices because \"pci=routeirq\" specified\n"); | |
41 | while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) | |
42 | acpi_pci_irq_enable(dev); | |
43 | } else | |
44 | printk(KERN_INFO "PCI: If a device doesn't work, try \"pci=routeirq\". If it helps, post a report\n"); | |
45 | ||
46 | #ifdef CONFIG_X86_IO_APIC | |
47 | if (acpi_ioapic) | |
48 | print_IO_APIC(); | |
49 | #endif | |
50 | ||
51 | return 0; | |
52 | } | |
53 | subsys_initcall(pci_acpi_init); |