x86_64: prepare shared pci/k8-bus.c

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 0 insertions, 83 deletions

diff --git a/arch/x86_64/pci/k8-bus.c b/arch/x86_64/pci/k8-bus.c
deleted file mode 100644
index 9cc813e29706..000000000000
--- a/arch/x86_64/pci/k8-bus.c
+++ /dev/null
@@ -1,83 +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;
-                                        struct pci_sysdata *sd;
-
-                                        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;
-
-                                        sd = bus->sysdata;
-                                        sd->node = node;
-                                }               
-                        }
-                }
-        }
-
-        return 0;
-}
-
-fs_initcall(fill_mp_bus_to_cpumask);