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authorJeff Garzik <jeff@garzik.org>2007-10-11 16:58:30 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2007-10-12 15:03:19 -0700
commita79e4198d1effbba040e9bf407a95fc9b3418789 (patch)
treebbfeed15db3a03c3e7f50ae36f18c017fb940b9e /arch/x86/pci/acpi.c
parent32a2eea795643929a43cbbba00d8c4a176b309bf (diff)
downloadop-kernel-dev-a79e4198d1effbba040e9bf407a95fc9b3418789.zip
op-kernel-dev-a79e4198d1effbba040e9bf407a95fc9b3418789.tar.gz
PCI: X86: Introduce and enable PCI domain support
* fix bug in pci_read() and pci_write() which prevented PCI domain support from working (hardcoded domain 0). * unconditionally enable CONFIG_PCI_DOMAINS * implement pci_domain_nr() and pci_proc_domain(), as required of all arches when CONFIG_PCI_DOMAINS is enabled. * store domain in struct pci_sysdata, as assigned by ACPI * support "pci=nodomains" Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch/x86/pci/acpi.c')
-rw-r--r--arch/x86/pci/acpi.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index c6fd3a6..27a391d 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -189,6 +189,12 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int do
dmi_check_system(acpi_pciprobe_dmi_table);
+ if (domain && !pci_domains_supported) {
+ printk(KERN_WARNING "PCI: Multiple domains not supported "
+ "(dom %d, bus %d)\n", domain, busnum);
+ return NULL;
+ }
+
/* Allocate per-root-bus (not per bus) arch-specific data.
* TODO: leak; this memory is never freed.
* It's arguable whether it's worth the trouble to care.
@@ -199,12 +205,7 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int do
return NULL;
}
- if (domain != 0) {
- printk(KERN_WARNING "PCI: Multiple domains not supported\n");
- kfree(sd);
- return NULL;
- }
-
+ sd->domain = domain;
sd->node = -1;
pxm = acpi_get_pxm(device->handle);
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