LXR linux/arch/sparc/include/asm/smp

   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 <linux/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
  52struct seq_file;
  53void smp_bogo(struct seq_file *);
  54void smp_info(struct seq_file *);
  55
  56#ifdef CONFIG_HOTPLUG_CPU
  57extern int __cpu_disable(void);
  58extern void __cpu_die(unsigned int cpu);
  59#endif
  60
  61#endif /* !(__ASSEMBLY__) */
  62
  63#else
  64
  65#define hard_smp_processor_id()         0
  66#define smp_fill_in_sib_core_maps() do { } while (0)
  67#define smp_fetch_global_regs() do { } while (0)
  68
  69#endif /* !(CONFIG_SMP) */
  70
  71#endif /* !(_SPARC64_SMP_H) */
  72