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| author | Jiaxun Yang <jiaxun.yang@flygoat.com> | 2024-07-16 22:14:58 +0800 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2024-08-02 16:06:36 +0200 |
| commit | c0e81a455e23f77683178b8ae32651df5841f065 (patch) | |
| tree | cd7e05fe71ff2b1527931c7a261b454c742125fd /kernel/cpu.c | |
| parent | 8400291e289ee6b2bf9779ff1c83a291501f017b (diff) | |
| download | lwn-c0e81a455e23f77683178b8ae32651df5841f065.tar.gz lwn-c0e81a455e23f77683178b8ae32651df5841f065.zip | |
cpu/hotplug: Make HOTPLUG_PARALLEL independent of HOTPLUG_SMT
Provide stub functions for SMT related parallel bring up functions so that
HOTPLUG_PARALLEL can work without HOTPLUG_SMT.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20240716-loongarch-hotplug-v3-1-af59b3bb35c8@flygoat.com
Diffstat (limited to 'kernel/cpu.c')
| -rw-r--r-- | kernel/cpu.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/kernel/cpu.c b/kernel/cpu.c index 1209ddaec026..c89e0e91379a 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -1808,6 +1808,7 @@ static int __init parallel_bringup_parse_param(char *arg) } early_param("cpuhp.parallel", parallel_bringup_parse_param); +#ifdef CONFIG_HOTPLUG_SMT static inline bool cpuhp_smt_aware(void) { return cpu_smt_max_threads > 1; @@ -1817,6 +1818,16 @@ static inline const struct cpumask *cpuhp_get_primary_thread_mask(void) { return cpu_primary_thread_mask; } +#else +static inline bool cpuhp_smt_aware(void) +{ + return false; +} +static inline const struct cpumask *cpuhp_get_primary_thread_mask(void) +{ + return cpu_none_mask; +} +#endif /* * On architectures which have enabled parallel bringup this invokes all BP |