| 1 | // SPDX-License-Identifier: GPL-2.0 |
|---|---|
| 2 | #include <linux/cpu.h> |
| 3 | #include <linux/cpumask.h> |
| 4 | #include <linux/init.h> |
| 5 | #include <linux/node.h> |
| 6 | #include <linux/nodemask.h> |
| 7 | #include <linux/percpu.h> |
| 8 | |
| 9 | static DEFINE_PER_CPU(struct cpu, cpu_devices); |
| 10 | |
| 11 | static int __init topology_init(void) |
| 12 | { |
| 13 | int i, ret; |
| 14 | |
| 15 | for_each_present_cpu(i) { |
| 16 | struct cpu *c = &per_cpu(cpu_devices, i); |
| 17 | |
| 18 | c->hotpluggable = !!i; |
| 19 | ret = register_cpu(cpu: c, num: i); |
| 20 | if (ret) |
| 21 | printk(KERN_WARNING "topology_init: register_cpu %d " |
| 22 | "failed (%d)\n", i, ret); |
| 23 | } |
| 24 | |
| 25 | return 0; |
| 26 | } |
| 27 | |
| 28 | subsys_initcall(topology_init); |
| 29 |