diff options
Diffstat (limited to 'arch/s390/include')
-rw-r--r-- | arch/s390/include/asm/smp.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/s390/include/asm/smp.h b/arch/s390/include/asm/smp.h index 0cc383b9be7f..8116b7b63af3 100644 --- a/arch/s390/include/asm/smp.h +++ b/arch/s390/include/asm/smp.h @@ -69,6 +69,12 @@ 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); |