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67 lines
1.8 KiB
67 lines
1.8 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* Copyright IBM Corp. 1999, 2012 |
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* Author(s): Denis Joseph Barrow, |
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* Martin Schwidefsky <[email protected]>, |
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* Heiko Carstens <[email protected]>, |
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*/ |
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#ifndef __ASM_SMP_H |
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#define __ASM_SMP_H |
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#include <asm/sigp.h> |
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#include <asm/lowcore.h> |
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#include <asm/processor.h> |
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#define raw_smp_processor_id() (S390_lowcore.cpu_nr) |
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extern struct mutex smp_cpu_state_mutex; |
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extern unsigned int smp_cpu_mt_shift; |
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extern unsigned int smp_cpu_mtid; |
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extern __vector128 __initdata boot_cpu_vector_save_area[__NUM_VXRS]; |
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extern int __cpu_up(unsigned int cpu, struct task_struct *tidle); |
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extern void arch_send_call_function_single_ipi(int cpu); |
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extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); |
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extern void smp_call_online_cpu(void (*func)(void *), void *); |
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extern void smp_call_ipl_cpu(void (*func)(void *), void *); |
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extern void smp_emergency_stop(void); |
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extern int smp_find_processor_id(u16 address); |
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extern int smp_store_status(int cpu); |
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extern void smp_save_dump_cpus(void); |
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extern void smp_yield_cpu(int cpu); |
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extern void smp_cpu_set_polarization(int cpu, int val); |
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extern int smp_cpu_get_polarization(int cpu); |
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extern int smp_cpu_get_cpu_address(int cpu); |
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extern void smp_fill_possible_mask(void); |
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extern void smp_detect_cpus(void); |
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static inline void smp_stop_cpu(void) |
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{ |
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u16 pcpu = stap(); |
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for (;;) { |
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__pcpu_sigp(pcpu, SIGP_STOP, 0, NULL); |
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cpu_relax(); |
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} |
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} |
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/* Return thread 0 CPU number as base CPU */ |
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static inline int smp_get_base_cpu(int cpu) |
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{ |
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return cpu - (cpu % (smp_cpu_mtid + 1)); |
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} |
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static inline void smp_cpus_done(unsigned int max_cpus) |
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{ |
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} |
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extern int smp_rescan_cpus(void); |
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extern void __noreturn cpu_die(void); |
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extern void __cpu_die(unsigned int cpu); |
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extern int __cpu_disable(void); |
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extern void schedule_mcck_handler(void); |
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#endif /* __ASM_SMP_H */
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