mk-rootfs.sh

hc

2023-12-11 072de836f53be56a70cecf70b43ae43b7ce17376

 kernel/arch/arm/mach-qcom/platsmp.c
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@@ -1,12 +1,9 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  *  Copyright (C) 2002 ARM Ltd.
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  *  All Rights Reserved
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  *  Copyright (c) 2010, Code Aurora Forum. All rights reserved.
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  *  Copyright (c) 2014 The Linux Foundation. All rights reserved.
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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  */
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 #include <linux/init.h>
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@@ -46,23 +43,12 @@
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 extern void secondary_startup_arm(void);
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-static DEFINE_RAW_SPINLOCK(boot_lock);
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-
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 #ifdef CONFIG_HOTPLUG_CPU
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 static void qcom_cpu_die(unsigned int cpu)
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 {
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 	wfi();
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 }
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 #endif
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-
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-static void qcom_secondary_init(unsigned int cpu)
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-{
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-	/*
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-	 * Synchronise with the boot thread.
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-	 */
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-	raw_spin_lock(&boot_lock);
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-	raw_spin_unlock(&boot_lock);
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-}
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 static int scss_release_secondary(unsigned int cpu)
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 {
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@@ -281,23 +267,11 @@
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 	}
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 	/*
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-	 * set synchronisation state between this boot processor
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-	 * and the secondary one
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-	 */
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-	raw_spin_lock(&boot_lock);
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-
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-	/*
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 	 * Send the secondary CPU a soft interrupt, thereby causing
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 	 * the boot monitor to read the system wide flags register,
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 	 * and branch to the address found there.
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 	 */
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 	arch_send_wakeup_ipi_mask(cpumask_of(cpu));
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-
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-	/*
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-	 * now the secondary core is starting up let it run its
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-	 * calibrations, then wait for it to finish
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-	 */
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-	raw_spin_unlock(&boot_lock);
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 	return ret;
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 }
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@@ -334,7 +308,6 @@
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 static const struct smp_operations smp_msm8660_ops __initconst = {
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 	.smp_prepare_cpus	= qcom_smp_prepare_cpus,
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-	.smp_secondary_init	= qcom_secondary_init,
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 	.smp_boot_secondary	= msm8660_boot_secondary,
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 #ifdef CONFIG_HOTPLUG_CPU
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 	.cpu_die		= qcom_cpu_die,
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@@ -344,7 +317,6 @@
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 static const struct smp_operations qcom_smp_kpssv1_ops __initconst = {
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 	.smp_prepare_cpus	= qcom_smp_prepare_cpus,
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-	.smp_secondary_init	= qcom_secondary_init,
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 	.smp_boot_secondary	= kpssv1_boot_secondary,
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 #ifdef CONFIG_HOTPLUG_CPU
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 	.cpu_die		= qcom_cpu_die,
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@@ -354,7 +326,6 @@
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 static const struct smp_operations qcom_smp_kpssv2_ops __initconst = {
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 	.smp_prepare_cpus	= qcom_smp_prepare_cpus,
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-	.smp_secondary_init	= qcom_secondary_init,
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 	.smp_boot_secondary	= kpssv2_boot_secondary,
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 #ifdef CONFIG_HOTPLUG_CPU
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 	.cpu_die		= qcom_cpu_die,