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[PATCH] x86_64: Revert k8-bus.c northbridge access change 

As Travis Betak points out it accesses the wrong northbridge subfunction
now. Switch back to the old code.

Cc: "Travis Betak" <betak@mpdtxmail.amd.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Andi Kleen 2006-07-29 21:42:46 +02:00 committed by Linus Torvalds
parent d2105b10fe
commit 355540f333
1 changed files with 5 additions and 5 deletions
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10
arch/x86_64/pci/k8-bus.c
View File

@ -2,7 +2,6 @@
#include <linux/pci.h>
#include <asm/mpspec.h>
#include <linux/cpumask.h>
#include <asm/k8.h>
/*
* This discovers the pcibus <-> node mapping on AMD K8.
@ -19,6 +18,7 @@
#define NR_LDT_BUS_NUMBER_REGISTERS 3
#define SECONDARY_LDT_BUS_NUMBER(dword) ((dword >> 8) & 0xFF)
#define SUBORDINATE_LDT_BUS_NUMBER(dword) ((dword >> 16) & 0xFF)
#define PCI_DEVICE_ID_K8HTCONFIG 0x1100
/**
* fill_mp_bus_to_cpumask()
@ -28,7 +28,8 @@
__init static int
fill_mp_bus_to_cpumask(void)
{
int i, j, k;
struct pci_dev *nb_dev = NULL;
int i, j;
u32 ldtbus, nid;
static int lbnr[3] = {
LDT_BUS_NUMBER_REGISTER_0,
@ -36,9 +37,8 @@ fill_mp_bus_to_cpumask(void)
LDT_BUS_NUMBER_REGISTER_2
};
cache_k8_northbridges();
for (k = 0; k < num_k8_northbridges; k++) {
struct pci_dev *nb_dev = k8_northbridges[k];
while ((nb_dev = pci_get_device(PCI_VENDOR_ID_AMD,
PCI_DEVICE_ID_K8HTCONFIG, nb_dev))) {
pci_read_config_dword(nb_dev, NODE_ID_REGISTER, &nid);
for (i = 0; i < NR_LDT_BUS_NUMBER_REGISTERS; i++) {