2005-04-17 00:20:36 +02:00
|
|
|
/*
|
|
|
|
* linux/include/asm-arm/smp.h
|
|
|
|
*
|
|
|
|
* Copyright (C) 2004-2005 ARM Ltd.
|
|
|
|
*
|
|
|
|
* This program is free software; you can redistribute it and/or modify
|
|
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
|
|
* published by the Free Software Foundation.
|
|
|
|
*/
|
|
|
|
#ifndef __ASM_ARM_SMP_H
|
|
|
|
#define __ASM_ARM_SMP_H
|
|
|
|
|
|
|
|
#include <linux/config.h>
|
|
|
|
#include <linux/threads.h>
|
|
|
|
#include <linux/cpumask.h>
|
|
|
|
#include <linux/thread_info.h>
|
|
|
|
|
|
|
|
#include <asm/arch/smp.h>
|
|
|
|
|
|
|
|
#ifndef CONFIG_SMP
|
|
|
|
# error "<asm-arm/smp.h> included in non-SMP build"
|
|
|
|
#endif
|
|
|
|
|
2005-06-22 02:14:34 +02:00
|
|
|
#define raw_smp_processor_id() (current_thread_info()->cpu)
|
2005-04-17 00:20:36 +02:00
|
|
|
|
|
|
|
/*
|
|
|
|
* at the moment, there's not a big penalty for changing CPUs
|
|
|
|
* (the >big< penalty is running SMP in the first place)
|
|
|
|
*/
|
|
|
|
#define PROC_CHANGE_PENALTY 15
|
|
|
|
|
|
|
|
struct seq_file;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* generate IPI list text
|
|
|
|
*/
|
|
|
|
extern void show_ipi_list(struct seq_file *p);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Move global data into per-processor storage.
|
|
|
|
*/
|
|
|
|
extern void smp_store_cpu_info(unsigned int cpuid);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Raise an IPI cross call on CPUs in callmap.
|
|
|
|
*/
|
|
|
|
extern void smp_cross_call(cpumask_t callmap);
|
|
|
|
|
2005-11-08 11:40:10 +01:00
|
|
|
/*
|
|
|
|
* Broadcast a timer interrupt to the other CPUs.
|
|
|
|
*/
|
|
|
|
extern void smp_send_timer(void);
|
|
|
|
|
2005-04-17 00:20:36 +02:00
|
|
|
/*
|
|
|
|
* Boot a secondary CPU, and assign it the specified idle task.
|
|
|
|
* This also gives us the initial stack to use for this CPU.
|
|
|
|
*/
|
|
|
|
extern int boot_secondary(unsigned int cpu, struct task_struct *);
|
|
|
|
|
2005-06-18 10:33:31 +02:00
|
|
|
/*
|
|
|
|
* Perform platform specific initialisation of the specified CPU.
|
|
|
|
*/
|
|
|
|
extern void platform_secondary_init(unsigned int cpu);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Initial data for bringing up a secondary CPU.
|
|
|
|
*/
|
|
|
|
struct secondary_data {
|
|
|
|
unsigned long pgdir;
|
|
|
|
void *stack;
|
|
|
|
};
|
|
|
|
extern struct secondary_data secondary_data;
|
|
|
|
|
2005-11-02 23:24:33 +01:00
|
|
|
extern int __cpu_disable(void);
|
|
|
|
extern int mach_cpu_disable(unsigned int cpu);
|
|
|
|
|
|
|
|
extern void __cpu_die(unsigned int cpu);
|
|
|
|
extern void cpu_die(void);
|
|
|
|
|
|
|
|
extern void platform_cpu_die(unsigned int cpu);
|
|
|
|
extern int platform_cpu_kill(unsigned int cpu);
|
|
|
|
extern void platform_cpu_enable(unsigned int cpu);
|
|
|
|
|
2005-04-17 00:20:36 +02:00
|
|
|
#endif /* ifndef __ASM_ARM_SMP_H */
|