| /* |
| * Copyright IBM Corp. 1999, 2012 |
| * Author(s): Denis Joseph Barrow, |
| * Martin Schwidefsky <schwidefsky@de.ibm.com>, |
| * Heiko Carstens <heiko.carstens@de.ibm.com>, |
| */ |
| #ifndef __ASM_SMP_H |
| #define __ASM_SMP_H |
| |
| #ifdef CONFIG_SMP |
| |
| #include <asm/lowcore.h> |
| |
| #define raw_smp_processor_id() (S390_lowcore.cpu_nr) |
| |
| extern struct mutex smp_cpu_state_mutex; |
| extern struct save_area *zfcpdump_save_areas[NR_CPUS + 1]; |
| |
| extern int __cpu_up(unsigned int cpu, struct task_struct *tidle); |
| |
| extern void arch_send_call_function_single_ipi(int cpu); |
| extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); |
| |
| extern void smp_call_online_cpu(void (*func)(void *), void *); |
| extern void smp_call_ipl_cpu(void (*func)(void *), void *); |
| |
| extern int smp_find_processor_id(u16 address); |
| extern int smp_store_status(int cpu); |
| extern int smp_vcpu_scheduled(int cpu); |
| extern void smp_yield_cpu(int cpu); |
| extern void smp_yield(void); |
| extern void smp_stop_cpu(void); |
| |
| #else /* CONFIG_SMP */ |
| |
| static inline void smp_call_ipl_cpu(void (*func)(void *), void *data) |
| { |
| func(data); |
| } |
| |
| static inline void smp_call_online_cpu(void (*func)(void *), void *data) |
| { |
| func(data); |
| } |
| |
| static inline int smp_find_processor_id(int address) { return 0; } |
| 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_yield(void) { } |
| static inline void smp_stop_cpu(void) { } |
| |
| #endif /* CONFIG_SMP */ |
| |
| #ifdef CONFIG_HOTPLUG_CPU |
| extern int smp_rescan_cpus(void); |
| extern void __noreturn cpu_die(void); |
| extern void __cpu_die(unsigned int cpu); |
| extern int __cpu_disable(void); |
| #else |
| static inline int smp_rescan_cpus(void) { return 0; } |
| static inline void cpu_die(void) { } |
| #endif |
| |
| #endif /* __ASM_SMP_H */ |
