arch/sparc/include/asm/smp_64.h

   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
  33 DECLARE_PER_CPU(cpumask_t, cpu_sibling_map);
  34 extern cpumask_t cpu_core_map[NR_CPUS];
  35 extern int sparc64_multi_core;
  36
  37 extern void arch_send_call_function_single_ipi(int cpu);
  38 extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
  39 #define arch_send_call_function_ipi_mask arch_send_call_function_ipi_mask
  40
  41 /*
  42  *      General functions that each host system must provide.
  43  */
  44
  45 extern int hard_smp_processor_id(void);
  46 #define raw_smp_processor_id() (current_thread_info()->cpu)
  47
  48 extern void smp_fill_in_sib_core_maps(void);
  49 extern void cpu_play_dead(void);
  50
  51 extern void smp_fetch_global_regs(void);
  52
  53 #ifdef CONFIG_HOTPLUG_CPU
  54 extern int __cpu_disable(void);
  55 extern void __cpu_die(unsigned int cpu);
  56 #endif
  57
  58 #endif /* !(__ASSEMBLY__) */
  59
  60 #else
  61
  62 #define hard_smp_processor_id()         0
  63 #define smp_fill_in_sib_core_maps() do { } while (0)
  64 #define smp_fetch_global_regs() do { } while (0)
  65
  66 #endif /* !(CONFIG_SMP) */
  67
  68 #endif /* !(_SPARC64_SMP_H) */