1 /* 2 * Copyright IBM Corp. 1999,2009 3 * Author(s): Denis Joseph Barrow, 4 * Martin Schwidefsky <schwidefsky@de.ibm.com>, 5 * Heiko Carstens <heiko.carstens@de.ibm.com>, 6 */ 7 #ifndef __ASM_SMP_H 8 #define __ASM_SMP_H 9 10 #ifdef CONFIG_SMP 11 12 #include <asm/system.h> 13 #include <asm/sigp.h> 14 15 extern void machine_restart_smp(char *); 16 extern void machine_halt_smp(void); 17 extern void machine_power_off_smp(void); 18 19 #define raw_smp_processor_id() (S390_lowcore.cpu_nr) 20 21 extern int __cpu_disable (void); 22 extern void __cpu_die (unsigned int cpu); 23 extern void cpu_die (void) __attribute__ ((noreturn)); 24 extern int __cpu_up (unsigned int cpu); 25 26 extern struct mutex smp_cpu_state_mutex; 27 extern int smp_cpu_polarization[]; 28 29 extern void arch_send_call_function_single_ipi(int cpu); 30 extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); 31 32 extern union save_area *zfcpdump_save_areas[NR_CPUS + 1]; 33 34 #endif /* CONFIG_SMP */ 35 36 #ifdef CONFIG_HOTPLUG_CPU 37 extern int smp_rescan_cpus(void); 38 #else 39 static inline int smp_rescan_cpus(void) { return 0; } 40 #endif 41 42 #endif /* __ASM_SMP_H */ 43