Merge branch 'cpus4096-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / sh / kernel / topology.c
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1/*
2 * arch/sh/kernel/topology.c
3 *
4 * Copyright (C) 2007 Paul Mundt
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file "COPYING" in the main directory of this archive
8 * for more details.
9 */
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10#include <linux/cpu.h>
11#include <linux/cpumask.h>
12#include <linux/init.h>
13#include <linux/percpu.h>
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14#include <linux/node.h>
15#include <linux/nodemask.h>
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16
17static DEFINE_PER_CPU(struct cpu, cpu_devices);
18
19static int __init topology_init(void)
20{
21 int i, ret;
22
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23#ifdef CONFIG_NEED_MULTIPLE_NODES
24 for_each_online_node(i)
25 register_one_node(i);
26#endif
27
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28 for_each_present_cpu(i) {
29 ret = register_cpu(&per_cpu(cpu_devices, i), i);
30 if (unlikely(ret))
31 printk(KERN_WARNING "%s: register_cpu %d failed (%d)\n",
866e6b9e 32 __func__, i, ret);
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33 }
34
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35#if defined(CONFIG_NUMA) && !defined(CONFIG_SMP)
36 /*
37 * In the UP case, make sure the CPU association is still
38 * registered under each node. Without this, sysfs fails
39 * to make the connection between nodes other than node0
40 * and cpu0.
41 */
42 for_each_online_node(i)
43 if (i != numa_node_id())
44 register_cpu_under_node(raw_smp_processor_id(), i);
45#endif
46
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47 return 0;
48}
49subsys_initcall(topology_init);