From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio
---
kernel/arch/x86/kernel/topology.c | 25 ++++++++-----------------
1 files changed, 8 insertions(+), 17 deletions(-)
diff --git a/kernel/arch/x86/kernel/topology.c b/kernel/arch/x86/kernel/topology.c
index 738bf42..0a2ec80 100644
--- a/kernel/arch/x86/kernel/topology.c
+++ b/kernel/arch/x86/kernel/topology.c
@@ -31,6 +31,7 @@
#include <linux/init.h>
#include <linux/smp.h>
#include <linux/irq.h>
+#include <asm/io_apic.h>
#include <asm/cpu.h>
static DEFINE_PER_CPU(struct x86_cpu, cpu_devices);
@@ -59,38 +60,28 @@
*/
int _debug_hotplug_cpu(int cpu, int action)
{
- struct device *dev = get_cpu_device(cpu);
int ret;
if (!cpu_is_hotpluggable(cpu))
return -EINVAL;
- lock_device_hotplug();
-
switch (action) {
case 0:
- ret = cpu_down(cpu);
- if (!ret) {
- pr_info("CPU %u is now offline\n", cpu);
- dev->offline = true;
- kobject_uevent(&dev->kobj, KOBJ_OFFLINE);
- } else
+ ret = remove_cpu(cpu);
+ if (!ret)
+ pr_info("DEBUG_HOTPLUG_CPU0: CPU %u is now offline\n", cpu);
+ else
pr_debug("Can't offline CPU%d.\n", cpu);
break;
case 1:
- ret = cpu_up(cpu);
- if (!ret) {
- dev->offline = false;
- kobject_uevent(&dev->kobj, KOBJ_ONLINE);
- } else {
+ ret = add_cpu(cpu);
+ if (ret)
pr_debug("Can't online CPU%d.\n", cpu);
- }
+
break;
default:
ret = -EINVAL;
}
-
- unlock_device_hotplug();
return ret;
}
--
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