85 lines
1.8 KiB
C
85 lines
1.8 KiB
C
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/* 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/spinlock.h>
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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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