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/*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file "COPYING" in the main directory of this
* archive for more details.
*
* Copyright (C) 2000 - 2001 by Kanoj Sarcar ([email protected])
* Copyright (C) 2000 - 2001 by Silicon Graphics, Inc.
* Copyright (C) 2000, 2001, 2002 Ralf Baechle
* Copyright (C) 2000, 2001 Broadcom Corporation
*/
#ifndef __ASM_SMP_OPS_H
#define __ASM_SMP_OPS_H
#include <linux/errno.h>
#include <asm/mips-cps.h>
#ifdef CONFIG_SMP
#include <linux/cpumask.h>
struct task_struct;
struct plat_smp_ops {
void (*send_ipi_single)(int cpu, unsigned int action);
void (*send_ipi_mask)(const struct cpumask *mask, unsigned int action);
void (*init_secondary)(void);
void (*smp_finish)(void);
int (*boot_secondary)(int cpu, struct task_struct *idle);
void (*smp_setup)(void);
void (*prepare_cpus)(unsigned int max_cpus);
void (*prepare_boot_cpu)(void);
#ifdef CONFIG_HOTPLUG_CPU
int (*cpu_disable)(void);
void (*cpu_die)(unsigned int cpu);
#endif
#ifdef CONFIG_KEXEC
void (*kexec_nonboot_cpu)(void);
#endif
};
extern void register_smp_ops(const struct plat_smp_ops *ops);
static inline void plat_smp_setup(void)
{
extern const struct plat_smp_ops *mp_ops; /* private */
mp_ops->smp_setup();
}
extern void mips_smp_send_ipi_single(int cpu, unsigned int action);
extern void mips_smp_send_ipi_mask(const struct cpumask *mask,
unsigned int action);
#else /* !CONFIG_SMP */
struct plat_smp_ops;
static inline void plat_smp_setup(void)
{
/* UP, nothing to do ... */
}
static inline void register_smp_ops(const struct plat_smp_ops *ops)
{
}
#endif /* !CONFIG_SMP */
static inline int register_up_smp_ops(void)
{
#ifdef CONFIG_SMP_UP
extern const struct plat_smp_ops up_smp_ops;
register_smp_ops(&up_smp_ops);
return 0;
#else
return -ENODEV;
#endif
}
static inline int register_cmp_smp_ops(void)
{
#ifdef CONFIG_MIPS_CMP
extern const struct plat_smp_ops cmp_smp_ops;
if (!mips_cm_present())
return -ENODEV;
register_smp_ops(&cmp_smp_ops);
return 0;
#else
return -ENODEV;
#endif
}
static inline int register_vsmp_smp_ops(void)
{
#ifdef CONFIG_MIPS_MT_SMP
extern const struct plat_smp_ops vsmp_smp_ops;
register_smp_ops(&vsmp_smp_ops);
return 0;
#else
return -ENODEV;
#endif
}
#ifdef CONFIG_MIPS_CPS
extern int register_cps_smp_ops(void);
#else
static inline int register_cps_smp_ops(void)
{
return -ENODEV;
}
#endif
#endif /* __ASM_SMP_OPS_H */