include/asm-sh/smp.h

   1 /*
   2  * include/asm-sh/smp.h
   3  *
   4  * Copyright (C) 2002, 2003  Paul Mundt
   5  *
   6  * This file is subject to the terms and conditions of the GNU General Public
   7  * License.  See the file "COPYING" in the main directory of this archive for
   8  * more details.
   9  */
  10 #ifndef __ASM_SH_SMP_H
  11 #define __ASM_SH_SMP_H
  12
  13 #include <linux/config.h>
  14 #include <linux/bitops.h>
  15 #include <linux/cpumask.h>
  16
  17 #ifdef CONFIG_SMP
  18
  19 #include <asm/spinlock.h>
  20 #include <asm/atomic.h>
  21 #include <asm/current.h>
  22
  23 extern cpumask_t cpu_online_map;
  24 extern cpumask_t cpu_possible_map;
  25
  26 #define cpu_online(cpu)         cpu_isset(cpu, cpu_online_map)
  27
  28 #define smp_processor_id()      (current_thread_info()->cpu)
  29
  30 /* I've no idea what the real meaning of this is */
  31 #define PROC_CHANGE_PENALTY     20
  32
  33 #define NO_PROC_ID      (-1)
  34
  35 struct smp_fn_call_struct {
  36         spinlock_t lock;
  37         atomic_t   finished;
  38         void (*fn)(void *);
  39         void *data;
  40 };
  41
  42 extern struct smp_fn_call_struct smp_fn_call;
  43
  44 #define SMP_MSG_RESCHEDULE      0x0001
  45
  46 #endif /* CONFIG_SMP */
  47
  48 #endif /* __ASM_SH_SMP_H */