arch/sh/include/asm/smp.h

#ifndef __ASM_SH_SMP_H
#define __ASM_SH_SMP_H

#include <linux/bitops.h>
#include <linux/cpumask.h>

#ifdef CONFIG_SMP

#include <linux/spinlock.h>
#include <asm/atomic.h>
#include <asm/current.h>

#define raw_smp_processor_id()	(current_thread_info()->cpu)
#define hard_smp_processor_id()	plat_smp_processor_id()

/* Map from cpu id to sequential logical cpu number. */
extern int __cpu_number_map[NR_CPUS];
#define cpu_number_map(cpu)  __cpu_number_map[cpu]

/* The reverse map from sequential logical cpu number to cpu id.  */
extern int __cpu_logical_map[NR_CPUS];
#define cpu_logical_map(cpu)  __cpu_logical_map[cpu]

enum {
	SMP_MSG_FUNCTION,
	SMP_MSG_RESCHEDULE,
	SMP_MSG_FUNCTION_SINGLE,
	SMP_MSG_TIMER,

	SMP_MSG_NR,	/* must be last */
};

void smp_message_recv(unsigned int msg);
void smp_timer_broadcast(const struct cpumask *mask);

void local_timer_interrupt(void);
void local_timer_setup(unsigned int cpu);

void plat_smp_setup(void);
void plat_prepare_cpus(unsigned int max_cpus);
int plat_smp_processor_id(void);
void plat_start_cpu(unsigned int cpu, unsigned long entry_point);
void plat_send_ipi(unsigned int cpu, unsigned int message);

void arch_send_call_function_single_ipi(int cpu);
extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);

#else

#define hard_smp_processor_id()	(0)

#endif /* CONFIG_SMP */

#endif /* __ASM_SH_SMP_H */