Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

/*

 * Populate sysfs 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 <linux/mmzone.h>

#include <asm/cpu.h>

static struct i386_cpu cpu_devices[NR_CPUS];

int __cpuinit arch_register_cpu(int num)

{

        /*

         * CPU0 cannot be offlined due to several

         * restrictions and assumptions in kernel. This basically

         * doesnt add a control file, one cannot attempt to offline

         * BSP.

         *

         * Also certain PCI quirks require not to enable hotplug control

         * for all CPU's.

         */

#ifdef CONFIG_HOTPLUG_CPU

        if (num)

                cpu_devices[num].cpu.hotpluggable = 1;

#endif

        return register_cpu(&cpu_devices[num].cpu, num);

}

#ifdef CONFIG_HOTPLUG_CPU

void arch_unregister_cpu(int num)

{

        return unregister_cpu(&cpu_devices[num].cpu);

}

EXPORT_SYMBOL(arch_register_cpu);

EXPORT_SYMBOL(arch_unregister_cpu);

#endif /*CONFIG_HOTPLUG_CPU*/

static int __init topology_init(void)

{

        int i;

#ifdef CONFIG_NUMA

        for_each_online_node(i)

                register_one_node(i);

#endif /* CONFIG_NUMA */

        for_each_present_cpu(i)

                arch_register_cpu(i);

        return 0;

}

subsys_initcall(topology_init);