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83 lines
1.8 KiB
83 lines
1.8 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef __ASM_SH_SMP_H |
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#define __ASM_SH_SMP_H |
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#include <linux/bitops.h> |
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#include <linux/cpumask.h> |
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#include <asm/smp-ops.h> |
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#ifdef CONFIG_SMP |
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#include <linux/atomic.h> |
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#include <asm/current.h> |
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#include <asm/percpu.h> |
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#define raw_smp_processor_id() (current_thread_info()->cpu) |
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/* Map from cpu id to sequential logical cpu number. */ |
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extern int __cpu_number_map[NR_CPUS]; |
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#define cpu_number_map(cpu) __cpu_number_map[cpu] |
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/* The reverse map from sequential logical cpu number to cpu id. */ |
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extern int __cpu_logical_map[NR_CPUS]; |
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#define cpu_logical_map(cpu) __cpu_logical_map[cpu] |
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enum { |
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SMP_MSG_FUNCTION, |
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SMP_MSG_RESCHEDULE, |
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SMP_MSG_FUNCTION_SINGLE, |
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SMP_MSG_TIMER, |
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SMP_MSG_NR, /* must be last */ |
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}; |
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DECLARE_PER_CPU(int, cpu_state); |
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void smp_message_recv(unsigned int msg); |
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void arch_send_call_function_single_ipi(int cpu); |
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void arch_send_call_function_ipi_mask(const struct cpumask *mask); |
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void native_play_dead(void); |
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void native_cpu_die(unsigned int cpu); |
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int native_cpu_disable(unsigned int cpu); |
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#ifdef CONFIG_HOTPLUG_CPU |
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void play_dead_common(void); |
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extern int __cpu_disable(void); |
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static inline void __cpu_die(unsigned int cpu) |
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{ |
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extern struct plat_smp_ops *mp_ops; /* private */ |
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mp_ops->cpu_die(cpu); |
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} |
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#endif |
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static inline int hard_smp_processor_id(void) |
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{ |
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extern struct plat_smp_ops *mp_ops; /* private */ |
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if (!mp_ops) |
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return 0; /* boot CPU */ |
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return mp_ops->smp_processor_id(); |
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} |
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struct of_cpu_method { |
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const char *method; |
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struct plat_smp_ops *ops; |
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}; |
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#define CPU_METHOD_OF_DECLARE(name, _method, _ops) \ |
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static const struct of_cpu_method __cpu_method_of_table_##name \ |
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__used __section("__cpu_method_of_table") \ |
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= { .method = _method, .ops = _ops } |
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#else |
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#define hard_smp_processor_id() (0) |
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#endif /* CONFIG_SMP */ |
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#endif /* __ASM_SH_SMP_H */
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