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

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/* smp.h: Sparc64 specific SMP stuff.
   3 *
   4 * Copyright (C) 1996, 2008 David S. Miller (davem@davemloft.net)
   5 */
   6
   7#ifndef _SPARC64_SMP_H
   8#define _SPARC64_SMP_H
   9
  10#include <linux/threads.h>
  11#include <asm/asi.h>
  12#include <asm/starfire.h>
  13#include <asm/spitfire.h>
  14
  15#ifndef __ASSEMBLY__
  16
  17#include <linux/cpumask.h>
  18#include <linux/cache.h>
  19
  20#endif /* !(__ASSEMBLY__) */
  21
  22#ifdef CONFIG_SMP
  23
  24#ifndef __ASSEMBLY__
  25
  26/*
  27 *      Private routines/data
  28 */
  29
  30#include <linux/bitops.h>
  31#include <linux/atomic.h>
  32#include <asm/percpu.h>
  33
  34DECLARE_PER_CPU(cpumask_t, cpu_sibling_map);
  35extern cpumask_t cpu_core_map[NR_CPUS];
  36
  37void smp_init_cpu_poke(void);
  38void scheduler_poke(void);
  39
  40void arch_send_call_function_single_ipi(int cpu);
  41void arch_send_call_function_ipi_mask(const struct cpumask *mask);
  42
  43/*
  44 *      General functions that each host system must provide.
  45 */
  46
  47int hard_smp_processor_id(void);
  48#define raw_smp_processor_id() (current_thread_info()->cpu)
  49
  50void smp_fill_in_cpu_possible_map(void);
  51void smp_fill_in_sib_core_maps(void);
  52void cpu_play_dead(void);
  53
  54void smp_fetch_global_regs(void);
  55void smp_fetch_global_pmu(void);
  56
  57struct seq_file;
  58void smp_bogo(struct seq_file *);
  59void smp_info(struct seq_file *);
  60
  61void smp_callin(void);
  62void cpu_panic(void);
  63void smp_synchronize_tick_client(void);
  64void smp_capture(void);
  65void smp_release(void);
  66
  67#ifdef CONFIG_HOTPLUG_CPU
  68int __cpu_disable(void);
  69void __cpu_die(unsigned int cpu);
  70#endif
  71
  72#endif /* !(__ASSEMBLY__) */
  73
  74#else
  75
  76#define hard_smp_processor_id()         0
  77#define smp_fill_in_sib_core_maps() do { } while (0)
  78#define smp_fetch_global_regs() do { } while (0)
  79#define smp_fetch_global_pmu() do { } while (0)
  80#define smp_fill_in_cpu_possible_map() do { } while (0)
  81#define smp_init_cpu_poke() do { } while (0)
  82#define scheduler_poke() do { } while (0)
  83
  84#endif /* !(CONFIG_SMP) */
  85
  86#endif /* !(_SPARC64_SMP_H) */
  87