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* Copyright (C) 2012 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.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <>.
#ifndef __ASM_SMP_H
#define __ASM_SMP_H
#include <linux/threads.h>
#include <linux/cpumask.h>
#include <linux/thread_info.h>
#ifndef CONFIG_SMP
# error "<asm/smp.h> included in non-SMP build"
#define raw_smp_processor_id() (current_thread_info()->cpu)
struct seq_file;
* generate IPI list text
extern void show_ipi_list(struct seq_file *p, int prec);
* Called from C code, this handles an IPI.
extern void handle_IPI(int ipinr, struct pt_regs *regs);
* Discover the set of possible CPUs and determine their
* SMP operations.
extern void of_smp_init_cpus(void);
* Provide a function to raise an IPI cross call on CPUs in callmap.
extern void set_smp_cross_call(void (*)(const struct cpumask *, unsigned int));
extern void (*__smp_cross_call)(const struct cpumask *, unsigned int);
* Called from the secondary holding pen, this is the secondary CPU entry point.
asmlinkage void secondary_start_kernel(void);
* Initial data for bringing up a secondary CPU.
struct secondary_data {
void *stack;
extern struct secondary_data secondary_data;
extern void secondary_entry(void);
extern void arch_send_call_function_single_ipi(int cpu);
extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
extern int __cpu_disable(void);
extern void __cpu_die(unsigned int cpu);
extern void cpu_die(void);
#endif /* ifndef __ASM_SMP_H */