1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef __ASM_SH_SMP_OPS_H 3#define __ASM_SH_SMP_OPS_H 4 5struct plat_smp_ops { 6 void (*smp_setup)(void); 7 unsigned int (*smp_processor_id)(void); 8 void (*prepare_cpus)(unsigned int max_cpus); 9 void (*start_cpu)(unsigned int cpu, unsigned long entry_point); 10 void (*send_ipi)(unsigned int cpu, unsigned int message); 11 int (*cpu_disable)(unsigned int cpu); 12 void (*cpu_die)(unsigned int cpu); 13 void (*play_dead)(void); 14}; 15 16extern struct plat_smp_ops *mp_ops; 17extern struct plat_smp_ops shx3_smp_ops; 18 19#ifdef CONFIG_SMP 20 21static inline void plat_smp_setup(void) 22{ 23 BUG_ON(!mp_ops); 24 mp_ops->smp_setup(); 25} 26 27static inline void __noreturn play_dead(void) 28{ 29 mp_ops->play_dead(); 30 BUG(); 31} 32 33extern void register_smp_ops(struct plat_smp_ops *ops); 34 35#else 36 37static inline void plat_smp_setup(void) 38{ 39 /* UP, nothing to do ... */ 40} 41 42static inline void register_smp_ops(struct plat_smp_ops *ops) 43{ 44} 45 46static inline void __noreturn play_dead(void) 47{ 48 BUG(); 49} 50 51#endif /* CONFIG_SMP */ 52 53#endif /* __ASM_SH_SMP_OPS_H */ 54