diff options
| -rw-r--r-- | arch/arm64/Kconfig | 4 | ||||
| -rw-r--r-- | arch/arm64/include/asm/smp_plat.h | 2 | ||||
| -rw-r--r-- | arch/arm64/kernel/setup.c | 12 | ||||
| -rw-r--r-- | arch/arm64/kernel/smp.c | 2 |
4 files changed, 19 insertions, 1 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 1b8e97331ffb..0d46debbc9a7 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -470,6 +470,10 @@ config HOTPLUG_CPU source kernel/Kconfig.preempt +config UP_LATE_INIT + def_bool y + depends on !SMP + config HZ int default 100 diff --git a/arch/arm64/include/asm/smp_plat.h b/arch/arm64/include/asm/smp_plat.h index 59e282311b58..8dcd61e32176 100644 --- a/arch/arm64/include/asm/smp_plat.h +++ b/arch/arm64/include/asm/smp_plat.h @@ -40,4 +40,6 @@ static inline u32 mpidr_hash_size(void) extern u64 __cpu_logical_map[NR_CPUS]; #define cpu_logical_map(cpu) __cpu_logical_map[cpu] +void __init do_post_cpus_up_work(void); + #endif /* __ASM_SMP_PLAT_H */ diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index e8420f635bd4..781f4697dc26 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -207,6 +207,18 @@ static void __init smp_build_mpidr_hash(void) } #endif +void __init do_post_cpus_up_work(void) +{ + apply_alternatives_all(); +} + +#ifdef CONFIG_UP_LATE_INIT +void __init up_late_init(void) +{ + do_post_cpus_up_work(); +} +#endif /* CONFIG_UP_LATE_INIT */ + static void __init setup_processor(void) { struct cpu_info *cpu_info; diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index 328b8ce4b007..4257369341e4 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -309,7 +309,7 @@ void cpu_die(void) void __init smp_cpus_done(unsigned int max_cpus) { pr_info("SMP: Total of %d processors activated.\n", num_online_cpus()); - apply_alternatives_all(); + do_post_cpus_up_work(); } void __init smp_prepare_boot_cpu(void) |