int __init pci_acpi_init(void) { struct pci_dev *dev = NULL; if (acpi_noirq) return -ENODEV; printk(KERN_INFO "PCI: Using ACPI for IRQ routing\n"); acpi_irq_penalty_init(); pcibios_enable_irq = acpi_pci_irq_enable; pcibios_disable_irq = acpi_pci_irq_disable; x86_init.pci.init_irq = x86_init_noop; if (pci_routeirq) { /* * PCI IRQ routing is set up by pci_enable_device(), but we * also do it here in case there are still broken drivers that * don't use pci_enable_device(). */ printk(KERN_INFO "PCI: Routing PCI interrupts for all devices because \"pci=routeirq\" specified\n"); for_each_pci_dev(dev) acpi_pci_irq_enable(dev); } return 0; }
static int __init pci_acpi_init(void) { struct pci_dev *dev = NULL; if (pcibios_scanned) return 0; if (acpi_noirq) return 0; printk(KERN_INFO "PCI: Using ACPI for IRQ routing\n"); acpi_irq_penalty_init(); pcibios_scanned++; pcibios_enable_irq = acpi_pci_irq_enable; pcibios_disable_irq = acpi_pci_irq_disable; if (pci_routeirq) { /* * PCI IRQ routing is set up by pci_enable_device(), but we * also do it here in case there are still broken drivers that * don't use pci_enable_device(). */ printk(KERN_INFO "PCI: Routing PCI interrupts for all devices because \"pci=routeirq\" specified\n"); while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) acpi_pci_irq_enable(dev); } else printk(KERN_INFO "PCI: If a device doesn't work, try \"pci=routeirq\". If it helps, post a report\n"); #ifdef CONFIG_X86_IO_APIC if (acpi_ioapic) print_IO_APIC(); #endif return 0; }