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05a11784 PM |
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 | */ | |
7a302a96 PM |
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 | |
17 | static DEFINE_PER_CPU(struct cpu, cpu_devices); | |
18 | ||
19 | static 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", | |
32 | __FUNCTION__, i, ret); | |
33 | } | |
34 | ||
05a11784 PM |
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 | ||
7a302a96 PM |
47 | return 0; |
48 | } | |
49 | subsys_initcall(topology_init); |