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);