blob: 4c4522b43be5e9a6951e0b4cb7252f2ee67b73e9 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
#include <linux/pci.h>
#include <linux/acpi.h>
#include <linux/init.h>
#include <linux/irq.h>
#include <asm/numa.h>
#include "pci.h"
struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int domain, int busnum)
{
struct pci_bus *bus;
if (domain != 0) {
printk(KERN_WARNING "PCI: Multiple domains not supported\n");
return NULL;
}
bus = pcibios_scan_root(busnum);
#ifdef CONFIG_ACPI_NUMA
if (bus != NULL) {
int pxm = acpi_get_pxm(device->handle);
if (pxm >= 0) {
bus->sysdata = (void *)(unsigned long)pxm_to_node(pxm);
printk("bus %d -> pxm %d -> node %ld\n",
busnum, pxm, (long)(bus->sysdata));
}
}
#endif
return bus;
}
extern int pci_routeirq;
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;
}
subsys_initcall(pci_acpi_init);
|
