From cb3576fa34e36907e292f408cb6c258f4fd112ad Mon Sep 17 00:00:00 2001
From: Gary Hade <garyhade@us.ibm.com>
Date: Fri, 8 Feb 2008 14:00:52 -0800
Subject: [PATCH] PCI: Include PCI domain in PCI bus names on x86/x86_64
The PCI bus names included in /proc/iomem and /proc/ioports are
of the form 'PCI Bus #XX' where XX is the bus number. This patch
changes the naming to 'PCI Bus XXXX:YY' where XXXX is the domain
number and YY is the bus number. For example, PCI bus 14 in
domain 0 will show as 'PCI Bus 0000:14' instead of 'PCI Bus #14'.
This change makes the naming consistent with other architectures
such as ia64 where multiple PCI domain support has been around
longer.
Signed-off-by: Gary Hade <garyhade@us.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
arch/x86/pci/acpi.c | 8 ++++----
drivers/pci/probe.c | 4 +++-
2 files changed, 7 insertions(+), 5 deletions(-)
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index 378136fb50447..8e0e7238370eb 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -151,7 +151,7 @@ adjust_transparent_bridge_resources(struct pci_bus *bus)
static void
get_current_resources(struct acpi_device *device, int busnum,
- struct pci_bus *bus)
+ int domain, struct pci_bus *bus)
{
struct pci_root_info info;
size_t size;
@@ -168,10 +168,10 @@ get_current_resources(struct acpi_device *device, int busnum,
if (!info.res)
goto res_alloc_fail;
- info.name = kmalloc(12, GFP_KERNEL);
+ info.name = kmalloc(16, GFP_KERNEL);
if (!info.name)
goto name_alloc_fail;
- sprintf(info.name, "PCI Bus #%02x", busnum);
+ sprintf(info.name, "PCI Bus %04x:%02x", domain, busnum);
info.res_num = 0;
acpi_walk_resources(device->handle, METHOD_NAME__CRS, setup_resource,
@@ -247,7 +247,7 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int do
#endif
if (bus && (pci_probe & PCI_USE__CRS))
- get_current_resources(device, busnum, bus);
+ get_current_resources(device, busnum, domain, bus);
return bus;
}
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 504f19b2af458..07d5c7424b019 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -631,7 +631,9 @@ int __devinit pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max,
pci_write_config_byte(dev, PCI_SUBORDINATE_BUS, max);
}
- sprintf(child->name, (is_cardbus ? "PCI CardBus #%02x" : "PCI Bus #%02x"), child->number);
+ sprintf(child->name,
+ (is_cardbus ? "PCI CardBus %04x:%02x" : "PCI Bus %04x:%02x"),
+ pci_domain_nr(bus), child->number);
/* Has only triggered on CardBus, fixup is in yenta_socket */
while (bus->parent) {
--
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