/* * arch/i386/mach-generic/topology.c - Populate driverfs with topology information * * Written by: Matthew Dobson, IBM Corporation * Original Code: Paul Dorwin, IBM Corporation, Patrick Mochel, OSDL * * Copyright (C) 2002, IBM Corp. * * All rights reserved.           * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or * NON INFRINGEMENT.  See the GNU General Public License for more * details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * * Send feedback to <colpatch@us.ibm.com> */#include <linux/init.h>#include <linux/smp.h>#include <linux/nodemask.h>#include <asm/cpu.h>static struct i386_cpu cpu_devices[NR_CPUS];int arch_register_cpu(int num){	struct node *parent = NULL;	#ifdef CONFIG_NUMA	int node = cpu_to_node(num);	if (node_online(node))		parent = &node_devices[node].node;#endif /* CONFIG_NUMA */	return register_cpu(&cpu_devices[num].cpu, num, parent);}#ifdef CONFIG_HOTPLUG_CPUvoid arch_unregister_cpu(int num) {	struct node *parent = NULL;#ifdef CONFIG_NUMA	int node = cpu_to_node(num);	if (node_online(node))		parent = &node_devices[node].node;#endif /* CONFIG_NUMA */	return unregister_cpu(&cpu_devices[num].cpu, parent);}EXPORT_SYMBOL(arch_register_cpu);EXPORT_SYMBOL(arch_unregister_cpu);#endif /*CONFIG_HOTPLUG_CPU*/#ifdef CONFIG_NUMA#include <linux/mmzone.h>#include <asm/node.h>struct i386_node node_devices[MAX_NUMNODES];static int __init topology_init(void){	int i;	for_each_online_node(i)		arch_register_node(i);	for_each_present_cpu(i)		arch_register_cpu(i);	return 0;}#else /* !CONFIG_NUMA */static int __init topology_init(void){	int i;	for_each_present_cpu(i)		arch_register_cpu(i);	return 0;}#endif /* CONFIG_NUMA */subsys_initcall(topology_init);