rtl8211F_led_control

hc

2024-05-11 297b60346df8beafee954a0fd7c2d64f33f3b9bc

 kernel/arch/x86/kernel/cpu/aperfmperf.c
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@@ -1,18 +1,19 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * x86 APERF/MPERF KHz calculation for
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  * /sys/.../cpufreq/scaling_cur_freq
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  *
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  * Copyright (C) 2017 Intel Corp.
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  * Author: Len Brown <len.brown@intel.com>
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- *
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- * This file is licensed under GPLv2.
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  */
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 #include <linux/delay.h>
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 #include <linux/ktime.h>
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 #include <linux/math64.h>
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 #include <linux/percpu.h>
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+#include <linux/cpufreq.h>
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 #include <linux/smp.h>
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+#include <linux/sched/isolation.h>
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 #include "cpu.h"
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@@ -82,7 +83,10 @@
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 	if (!cpu_khz)
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 		return 0;
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-	if (!static_cpu_has(X86_FEATURE_APERFMPERF))
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+	if (!boot_cpu_has(X86_FEATURE_APERFMPERF))
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+		return 0;
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+
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+	if (!housekeeping_cpu(cpu, HK_FLAG_MISC))
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 		return 0;
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 	aperfmperf_snapshot_cpu(cpu, ktime_get(), true);
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@@ -98,12 +102,15 @@
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 	if (!cpu_khz)
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 		return;
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-	if (!static_cpu_has(X86_FEATURE_APERFMPERF))
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+	if (!boot_cpu_has(X86_FEATURE_APERFMPERF))
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 		return;
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-	for_each_online_cpu(cpu)
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+	for_each_online_cpu(cpu) {
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+		if (!housekeeping_cpu(cpu, HK_FLAG_MISC))
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+			continue;
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 		if (!aperfmperf_snapshot_cpu(cpu, now, false))
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 			wait = true;
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+	}
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 	if (wait)
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 		msleep(APERFMPERF_REFRESH_DELAY_MS);
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@@ -114,7 +121,10 @@
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 	if (!cpu_khz)
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 		return 0;
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-	if (!static_cpu_has(X86_FEATURE_APERFMPERF))
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+	if (!boot_cpu_has(X86_FEATURE_APERFMPERF))
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+		return 0;
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+
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+	if (!housekeeping_cpu(cpu, HK_FLAG_MISC))
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 		return 0;
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 	if (aperfmperf_snapshot_cpu(cpu, ktime_get(), true))