1/* smp.h: Sparc64 specific SMP stuff. 2 * 3 * Copyright (C) 1996, 2008 David S. Miller (davem@davemloft.net) 4 */ 5 6#ifndef _SPARC64_SMP_H 7#define _SPARC64_SMP_H 8 9#include <linux/threads.h> 10#include <asm/asi.h> 11#include <asm/starfire.h> 12#include <asm/spitfire.h> 13 14#ifndef __ASSEMBLY__ 15 16#include <linux/cpumask.h> 17#include <linux/cache.h> 18 19#endif /* !(__ASSEMBLY__) */ 20 21#ifdef CONFIG_SMP 22 23#ifndef __ASSEMBLY__ 24 25/* 26 * Private routines/data 27 */ 28 29#include <linux/bitops.h> 30#include <asm/atomic.h> 31#include <asm/percpu.h> 32 33DECLARE_PER_CPU(cpumask_t, cpu_sibling_map); 34extern cpumask_t cpu_core_map[NR_CPUS]; 35extern int sparc64_multi_core; 36 37extern void arch_send_call_function_single_ipi(int cpu); 38extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); 39 40/* 41 * General functions that each host system must provide. 42 */ 43 44extern int hard_smp_processor_id(void); 45#define raw_smp_processor_id() (current_thread_info()->cpu) 46 47extern void smp_fill_in_sib_core_maps(void); 48extern void cpu_play_dead(void); 49 50extern void smp_fetch_global_regs(void); 51 52#ifdef CONFIG_HOTPLUG_CPU 53extern int __cpu_disable(void); 54extern void __cpu_die(unsigned int cpu); 55#endif 56 57#endif /* !(__ASSEMBLY__) */ 58 59#else 60 61#define hard_smp_processor_id() 0 62#define smp_fill_in_sib_core_maps() do { } while (0) 63#define smp_fetch_global_regs() do { } while (0) 64 65#endif /* !(CONFIG_SMP) */ 66 67#endif /* !(_SPARC64_SMP_H) */ 68