Viewing file:  smp.h (1.36 KB) -rw-r--r--
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#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]
/* I've no idea what the real meaning of this is */
#define PROC_CHANGE_PENALTY 20
#define NO_PROC_ID (-1)
struct smp_fn_call_struct {
spinlock_t lock;
atomic_t finished;
void (*fn)(void *);
void *data;
};
extern struct smp_fn_call_struct smp_fn_call;
#define SMP_MSG_FUNCTION 0
#define SMP_MSG_RESCHEDULE 1
#define SMP_MSG_NR 2
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);
int plat_register_ipi_handler(unsigned int message,
void (*handler)(void *), void *arg);
#else
#define hard_smp_processor_id() (0)
#endif /* CONFIG_SMP */
#endif /* __ASM_SH_SMP_H */
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