Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
36 lines
971 B
C
36 lines
971 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2020 Western Digital Corporation or its affiliates.
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* Based on arch/arm64/include/asm/cpu_ops.h
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*/
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#ifndef __ASM_CPU_OPS_H
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#define __ASM_CPU_OPS_H
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#include <linux/init.h>
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#include <linux/sched.h>
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#include <linux/threads.h>
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/**
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* struct cpu_operations - Callback operations for hotplugging CPUs.
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*
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* @cpu_start: Boots a cpu into the kernel.
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* @cpu_stop: Makes a cpu leave the kernel. Must not fail. Called from
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* the cpu being stopped.
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* @cpu_is_stopped: Ensures a cpu has left the kernel. Called from another
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* cpu.
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*/
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struct cpu_operations {
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int (*cpu_start)(unsigned int cpu,
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struct task_struct *tidle);
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#ifdef CONFIG_HOTPLUG_CPU
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void (*cpu_stop)(void);
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int (*cpu_is_stopped)(unsigned int cpu);
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#endif
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};
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extern const struct cpu_operations cpu_ops_spinwait;
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extern const struct cpu_operations *cpu_ops;
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void __init cpu_set_ops(void);
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#endif /* ifndef __ASM_CPU_OPS_H */
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