arch/sparc/include/asm/smp_64.h

   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
  34 DECLARE_PER_CPU(cpumask_t, cpu_sibling_map);
  35 extern cpumask_t cpu_core_map[NR_CPUS];
  36
  37 void smp_init_cpu_poke(void);
  38 void scheduler_poke(void);
  39
  40 void arch_send_call_function_single_ipi(int cpu);
  41 void arch_send_call_function_ipi_mask(const struct cpumask *mask);
  42
  43 /*
  44  *      General functions that each host system must provide.
  45  */
  46
  47 int hard_smp_processor_id(void);
  48 #define raw_smp_processor_id() (current_thread_info()->cpu)
  49
  50 void smp_fill_in_sib_core_maps(void);
  51 void __noreturn cpu_play_dead(void);
  52
  53 void smp_fetch_global_regs(void);
  54 void smp_fetch_global_pmu(void);
  55
  56 struct seq_file;
  57 void smp_bogo(struct seq_file *);
  58 void smp_info(struct seq_file *);
  59
  60 void smp_callin(void);
  61 void cpu_panic(void);
  62 void smp_synchronize_tick_client(void);
  63 void smp_capture(void);
  64 void smp_release(void);
  65
  66 #ifdef CONFIG_HOTPLUG_CPU
  67 int __cpu_disable(void);
  68 void __cpu_die(unsigned int cpu);
  69 #endif
  70
  71 #endif /* !(__ASSEMBLY__) */
  72
  73 #else
  74
  75 #define hard_smp_processor_id()         0
  76 #define smp_fill_in_sib_core_maps() do { } while (0)
  77 #define smp_fetch_global_regs() do { } while (0)
  78 #define smp_fetch_global_pmu() do { } while (0)
  79 #define smp_init_cpu_poke() do { } while (0)
  80 #define scheduler_poke() do { } while (0)
  81
  82 #endif /* !(CONFIG_SMP) */
  83
  84 #endif /* !(_SPARC64_SMP_H) */