1 #ifndef __ASM_SH_SMP_H 2 #define __ASM_SH_SMP_H 3 4 #include <linux/bitops.h> 5 #include <linux/cpumask.h> 6 7 #ifdef CONFIG_SMP 8 9 #include <linux/spinlock.h> 10 #include <asm/atomic.h> 11 #include <asm/current.h> 12 13 #define raw_smp_processor_id() (current_thread_info()->cpu) 14 #define hard_smp_processor_id() plat_smp_processor_id() 15 16 /* Map from cpu id to sequential logical cpu number. */ 17 extern int __cpu_number_map[NR_CPUS]; 18 #define cpu_number_map(cpu) __cpu_number_map[cpu] 19 20 /* The reverse map from sequential logical cpu number to cpu id. */ 21 extern int __cpu_logical_map[NR_CPUS]; 22 #define cpu_logical_map(cpu) __cpu_logical_map[cpu] 23 24 /* I've no idea what the real meaning of this is */ 25 #define PROC_CHANGE_PENALTY 20 26 27 #define NO_PROC_ID (-1) 28 29 #define SMP_MSG_FUNCTION 0 30 #define SMP_MSG_RESCHEDULE 1 31 #define SMP_MSG_FUNCTION_SINGLE 2 32 #define SMP_MSG_NR 3 33 34 void plat_smp_setup(void); 35 void plat_prepare_cpus(unsigned int max_cpus); 36 int plat_smp_processor_id(void); 37 void plat_start_cpu(unsigned int cpu, unsigned long entry_point); 38 void plat_send_ipi(unsigned int cpu, unsigned int message); 39 int plat_register_ipi_handler(unsigned int message, 40 void (*handler)(void *), void *arg); 41 extern void arch_send_call_function_single_ipi(int cpu); 42 extern void arch_send_call_function_ipi(cpumask_t mask); 43 44 #else 45 46 #define hard_smp_processor_id() (0) 47 48 #endif /* CONFIG_SMP */ 49 50 #endif /* __ASM_SH_SMP_H */ 51