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Diffstat (limited to 'arch/x86_64/pci/k8-bus.c')
-rw-r--r--arch/x86_64/pci/k8-bus.c79
1 files changed, 0 insertions, 79 deletions
diff --git a/arch/x86_64/pci/k8-bus.c b/arch/x86_64/pci/k8-bus.c
deleted file mode 100644
index 3acf60ded2a..00000000000
--- a/arch/x86_64/pci/k8-bus.c
+++ /dev/null
@@ -1,79 +0,0 @@
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <asm/mpspec.h>
-#include <linux/cpumask.h>
-
-/*
- * This discovers the pcibus <-> node mapping on AMD K8.
- *
- * RED-PEN need to call this again on PCI hotplug
- * RED-PEN empty cpus get reported wrong
- */
-
-#define NODE_ID_REGISTER 0x60
-#define NODE_ID(dword) (dword & 0x07)
-#define LDT_BUS_NUMBER_REGISTER_0 0x94
-#define LDT_BUS_NUMBER_REGISTER_1 0xB4
-#define LDT_BUS_NUMBER_REGISTER_2 0xD4
-#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()
- * fills the mp_bus_to_cpumask array based according to the LDT Bus Number
- * Registers found in the K8 northbridge
- */
-__init static int
-fill_mp_bus_to_cpumask(void)
-{
- struct pci_dev *nb_dev = NULL;
- int i, j;
- u32 ldtbus, nid;
- static int lbnr[3] = {
- LDT_BUS_NUMBER_REGISTER_0,
- LDT_BUS_NUMBER_REGISTER_1,
- LDT_BUS_NUMBER_REGISTER_2
- };
-
- 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++) {
- pci_read_config_dword(nb_dev, lbnr[i], &ldtbus);
- /*
- * if there are no busses hanging off of the current
- * ldt link then both the secondary and subordinate
- * bus number fields are set to 0.
- *
- * RED-PEN
- * This is slightly broken because it assumes
- * HT node IDs == Linux node ids, which is not always
- * true. However it is probably mostly true.
- */
- if (!(SECONDARY_LDT_BUS_NUMBER(ldtbus) == 0
- && SUBORDINATE_LDT_BUS_NUMBER(ldtbus) == 0)) {
- for (j = SECONDARY_LDT_BUS_NUMBER(ldtbus);
- j <= SUBORDINATE_LDT_BUS_NUMBER(ldtbus);
- j++) {
- struct pci_bus *bus;
- long node = NODE_ID(nid);
- /* Algorithm a bit dumb, but
- it shouldn't matter here */
- bus = pci_find_bus(0, j);
- if (!bus)
- continue;
- if (!node_online(node))
- node = 0;
- bus->sysdata = (void *)node;
- }
- }
- }
- }
-
- return 0;
-}
-
-fs_initcall(fill_mp_bus_to_cpumask);