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>
34 lines
1.1 KiB
C
34 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_CPU_SMT_H_
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#define _LINUX_CPU_SMT_H_
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enum cpuhp_smt_control {
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CPU_SMT_ENABLED,
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CPU_SMT_DISABLED,
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CPU_SMT_FORCE_DISABLED,
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CPU_SMT_NOT_SUPPORTED,
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CPU_SMT_NOT_IMPLEMENTED,
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};
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#if defined(CONFIG_SMP) && defined(CONFIG_HOTPLUG_SMT)
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extern enum cpuhp_smt_control cpu_smt_control;
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extern unsigned int cpu_smt_num_threads;
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extern void cpu_smt_disable(bool force);
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extern void cpu_smt_set_num_threads(unsigned int num_threads,
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unsigned int max_threads);
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extern bool cpu_smt_possible(void);
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extern int cpuhp_smt_enable(void);
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extern int cpuhp_smt_disable(enum cpuhp_smt_control ctrlval);
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#else
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# define cpu_smt_control (CPU_SMT_NOT_IMPLEMENTED)
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# define cpu_smt_num_threads 1
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static inline void cpu_smt_disable(bool force) { }
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static inline void cpu_smt_set_num_threads(unsigned int num_threads,
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unsigned int max_threads) { }
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static inline bool cpu_smt_possible(void) { return false; }
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static inline int cpuhp_smt_enable(void) { return 0; }
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static inline int cpuhp_smt_disable(enum cpuhp_smt_control ctrlval) { return 0; }
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#endif
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#endif /* _LINUX_CPU_SMT_H_ */
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