2 * Copyright IBM Corp. 1999, 2012
3 * Author(s): Denis Joseph Barrow,
14 #include <asm/lowcore.h>
16 #define raw_smp_processor_id() (S390_lowcore.cpu_nr)
18 extern struct mutex smp_cpu_state_mutex;
20 extern int __cpu_up(unsigned int cpu, struct task_struct *tidle);
22 extern void arch_send_call_function_single_ipi(int cpu);
23 extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
25 extern void smp_call_online_cpu(void (*func)(void *), void *);
26 extern void smp_call_ipl_cpu(void (*func)(void *), void *);
28 extern int smp_find_processor_id(u16 address);
29 extern int smp_store_status(int cpu);
30 extern int smp_vcpu_scheduled(int cpu);
31 extern void smp_yield_cpu(int cpu);
32 extern void smp_yield(void);
33 extern void smp_stop_cpu(void);
34 extern void smp_cpu_set_polarization(int cpu, int val);
35 extern int smp_cpu_get_polarization(int cpu);
36 extern void smp_fill_possible_mask(void);
38 #else /* CONFIG_SMP */
40 static inline void smp_call_ipl_cpu(void (*func)(void *), void *data)
45 static inline void smp_call_online_cpu(void (*func)(void *), void *data)
50 static inline int smp_find_processor_id(u16 address) { return 0; }
51 static inline int smp_store_status(int cpu) { return 0; }
52 static inline int smp_vcpu_scheduled(int cpu) { return 1; }
53 static inline void smp_yield_cpu(int cpu) { }
54 static inline void smp_yield(void) { }
55 static inline void smp_fill_possible_mask(void) { }
57 static inline void smp_stop_cpu(void)
62 __pcpu_sigp(pcpu, SIGP_STOP, 0, NULL);
67 #endif /* CONFIG_SMP */
69 #ifdef CONFIG_HOTPLUG_CPU
70 extern int smp_rescan_cpus(void);
71 extern void __noreturn cpu_die(void);
72 extern void __cpu_die(unsigned int cpu);
73 extern int __cpu_disable(void);
75 static inline int smp_rescan_cpus(void) { return 0; }
76 static inline void cpu_die(void) { }
79 #endif /* __ASM_SMP_H */