diff options
Diffstat (limited to 'arch/s390/include/asm/smp.h')
| -rw-r--r-- | arch/s390/include/asm/smp.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/s390/include/asm/smp.h b/arch/s390/include/asm/smp.h index 0cc383b9be7f..3deb134587b7 100644 --- a/arch/s390/include/asm/smp.h +++ b/arch/s390/include/asm/smp.h @@ -36,6 +36,7 @@ extern void smp_yield_cpu(int cpu); extern void smp_cpu_set_polarization(int cpu, int val); extern int smp_cpu_get_polarization(int cpu); extern void smp_fill_possible_mask(void); +extern void smp_detect_cpus(void); #else /* CONFIG_SMP */ @@ -56,6 +57,7 @@ static inline int smp_store_status(int cpu) { return 0; } static inline int smp_vcpu_scheduled(int cpu) { return 1; } static inline void smp_yield_cpu(int cpu) { } static inline void smp_fill_possible_mask(void) { } +static inline void smp_detect_cpus(void) { } #endif /* CONFIG_SMP */ @@ -69,6 +71,12 @@ static inline void smp_stop_cpu(void) } } +/* Return thread 0 CPU number as base CPU */ +static inline int smp_get_base_cpu(int cpu) +{ + return cpu - (cpu % (smp_cpu_mtid + 1)); +} + #ifdef CONFIG_HOTPLUG_CPU extern int smp_rescan_cpus(void); extern void __noreturn cpu_die(void); |