Contributors: 2
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Huacai Chen |
204 |
97.14% |
3 |
75.00% |
| Tiezhu Yang |
6 |
2.86% |
1 |
25.00% |
| Total |
210 |
|
4 |
|
// SPDX-License-Identifier: GPL-2.0
#include <linux/cpu.h>
#include <linux/cpumask.h>
#include <linux/init.h>
#include <linux/node.h>
#include <linux/nodemask.h>
#include <linux/percpu.h>
#include <asm/bootinfo.h>
static DEFINE_PER_CPU(struct cpu, cpu_devices);
#ifdef CONFIG_HOTPLUG_CPU
int arch_register_cpu(int cpu)
{
int ret;
struct cpu *c = &per_cpu(cpu_devices, cpu);
c->hotpluggable = 1;
ret = register_cpu(c, cpu);
if (ret < 0)
pr_warn("register_cpu %d failed (%d)\n", cpu, ret);
return ret;
}
EXPORT_SYMBOL(arch_register_cpu);
void arch_unregister_cpu(int cpu)
{
struct cpu *c = &per_cpu(cpu_devices, cpu);
c->hotpluggable = 0;
unregister_cpu(c);
}
EXPORT_SYMBOL(arch_unregister_cpu);
#endif
static int __init topology_init(void)
{
int i, ret;
for_each_present_cpu(i) {
struct cpu *c = &per_cpu(cpu_devices, i);
c->hotpluggable = !io_master(i);
ret = register_cpu(c, i);
if (ret < 0)
pr_warn("topology_init: register_cpu %d failed (%d)\n", i, ret);
}
return 0;
}
subsys_initcall(topology_init);