/* * 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 #define raw_smp_processor_id() (current_thread_info()->cpu) /* * 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); /* * 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 *); /* * 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; #endif /* ifndef __ASM_ARM_SMP_H */