85 строки
1.8 KiB
C
85 строки
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef __ASM_SH_SMP_H
|
|
#define __ASM_SH_SMP_H
|
|
|
|
#include <linux/bitops.h>
|
|
#include <linux/cpumask.h>
|
|
#include <asm/smp-ops.h>
|
|
|
|
#ifdef CONFIG_SMP
|
|
|
|
#include <linux/spinlock.h>
|
|
#include <linux/atomic.h>
|
|
#include <asm/current.h>
|
|
#include <asm/percpu.h>
|
|
|
|
#define raw_smp_processor_id() (current_thread_info()->cpu)
|
|
|
|
/* 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 */
|
|
};
|
|
|
|
DECLARE_PER_CPU(int, cpu_state);
|
|
|
|
void smp_message_recv(unsigned int msg);
|
|
|
|
void arch_send_call_function_single_ipi(int cpu);
|
|
void arch_send_call_function_ipi_mask(const struct cpumask *mask);
|
|
|
|
void native_play_dead(void);
|
|
void native_cpu_die(unsigned int cpu);
|
|
int native_cpu_disable(unsigned int cpu);
|
|
|
|
#ifdef CONFIG_HOTPLUG_CPU
|
|
void play_dead_common(void);
|
|
extern int __cpu_disable(void);
|
|
|
|
static inline void __cpu_die(unsigned int cpu)
|
|
{
|
|
extern struct plat_smp_ops *mp_ops; /* private */
|
|
|
|
mp_ops->cpu_die(cpu);
|
|
}
|
|
#endif
|
|
|
|
static inline int hard_smp_processor_id(void)
|
|
{
|
|
extern struct plat_smp_ops *mp_ops; /* private */
|
|
|
|
if (!mp_ops)
|
|
return 0; /* boot CPU */
|
|
|
|
return mp_ops->smp_processor_id();
|
|
}
|
|
|
|
struct of_cpu_method {
|
|
const char *method;
|
|
struct plat_smp_ops *ops;
|
|
};
|
|
|
|
#define CPU_METHOD_OF_DECLARE(name, _method, _ops) \
|
|
static const struct of_cpu_method __cpu_method_of_table_##name \
|
|
__used __section(__cpu_method_of_table) \
|
|
= { .method = _method, .ops = _ops }
|
|
|
|
#else
|
|
|
|
#define hard_smp_processor_id() (0)
|
|
|
|
#endif /* CONFIG_SMP */
|
|
|
|
#endif /* __ASM_SH_SMP_H */
|