mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 23:25:11 +07:00
9cce844abf
Now CPU#0 is not hotpluggable on MIPS, so prevent to create /sys/devices /system/cpu/cpu0/online which confuses some user-space tools. Cc: stable@vger.kernel.org Signed-off-by: Huacai Chen <chenhc@lemote.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
34 lines
665 B
C
34 lines
665 B
C
// 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>
|
|
|
|
static DEFINE_PER_CPU(struct cpu, cpu_devices);
|
|
|
|
static int __init topology_init(void)
|
|
{
|
|
int i, ret;
|
|
|
|
#ifdef CONFIG_NUMA
|
|
for_each_online_node(i)
|
|
register_one_node(i);
|
|
#endif /* CONFIG_NUMA */
|
|
|
|
for_each_present_cpu(i) {
|
|
struct cpu *c = &per_cpu(cpu_devices, i);
|
|
|
|
c->hotpluggable = !!i;
|
|
ret = register_cpu(c, i);
|
|
if (ret)
|
|
printk(KERN_WARNING "topology_init: register_cpu %d "
|
|
"failed (%d)\n", i, ret);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
subsys_initcall(topology_init);
|