| /* SPDX-License-Identifier: GPL-2.0 */ | |
| /* | |
| * Copyright IBM Corp. 1999, 2012 | |
| * Author(s): Denis Joseph Barrow, | |
| * Martin Schwidefsky <schwidefsky@de.ibm.com>, | |
| */ | |
| #ifndef __ASM_SMP_H | |
| #define __ASM_SMP_H | |
| #include <asm/sigp.h> | |
| #include <asm/lowcore.h> | |
| #include <asm/processor.h> | |
| #define raw_smp_processor_id() (get_lowcore()->cpu_nr) | |
| #define arch_scale_cpu_capacity smp_cpu_get_capacity | |
| extern struct mutex smp_cpu_state_mutex; | |
| extern unsigned int smp_cpu_mt_shift; | |
| extern unsigned int smp_cpu_mtid; | |
| extern __vector128 __initdata boot_cpu_vector_save_area[__NUM_VXRS]; | |
| extern cpumask_t cpu_setup_mask; | |
| 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_ipl_cpu(void (*func)(void *), void *); | |
| extern void smp_emergency_stop(void); | |
| extern int smp_find_processor_id(u16 address); | |
| extern int smp_store_status(int cpu); | |
| extern void smp_save_dump_ipl_cpu(void); | |
| extern void smp_save_dump_secondary_cpus(void); | |
| extern void smp_yield_cpu(int cpu); | |
| extern void smp_cpu_set_polarization(int cpu, int val); | |
| extern int smp_cpu_get_polarization(int cpu); | |
| extern void smp_cpu_set_capacity(int cpu, unsigned long val); | |
| extern void smp_set_core_capacity(int cpu, unsigned long val); | |
| extern unsigned long smp_cpu_get_capacity(int cpu); | |
| extern int smp_cpu_get_cpu_address(int cpu); | |
| extern void smp_fill_possible_mask(void); | |
| extern void smp_detect_cpus(void); | |
| static inline void smp_stop_cpu(void) | |
| { | |
| u16 pcpu = stap(); | |
| for (;;) { | |
| __pcpu_sigp(pcpu, SIGP_STOP, 0, NULL); | |
| cpu_relax(); | |
| } | |
| } | |
| /* Return thread 0 CPU number as base CPU */ | |
| static inline int smp_get_base_cpu(int cpu) | |
| { | |
| return cpu - (cpu % (smp_cpu_mtid + 1)); | |
| } | |
| static inline void smp_cpus_done(unsigned int max_cpus) | |
| { | |
| } | |
| extern int smp_rescan_cpus(bool early); | |
| extern void __noreturn cpu_die(void); | |
| extern void __cpu_die(unsigned int cpu); | |
| extern int __cpu_disable(void); | |
| extern void schedule_mcck_handler(void); | |
| void notrace smp_yield_cpu(int cpu); | |
| #endif /* __ASM_SMP_H */ |