arch/mips/include/asm/smp-ops.h

   1 /*
   2  * This file is subject to the terms and conditions of the GNU General
   3  * Public License.  See the file "COPYING" in the main directory of this
   4  * archive for more details.
   5  *
   6  * Copyright (C) 2000 - 2001 by Kanoj Sarcar (kanoj@sgi.com)
   7  * Copyright (C) 2000 - 2001 by Silicon Graphics, Inc.
   8  * Copyright (C) 2000, 2001, 2002 Ralf Baechle
   9  * Copyright (C) 2000, 2001 Broadcom Corporation
  10  */
  11 #ifndef __ASM_SMP_OPS_H
  12 #define __ASM_SMP_OPS_H
  13
  14 #ifdef CONFIG_SMP
  15
  16 #include <linux/cpumask.h>
  17
  18 struct task_struct;
  19
  20 struct plat_smp_ops {
  21         void (*send_ipi_single)(int cpu, unsigned int action);
  22         void (*send_ipi_mask)(const struct cpumask *mask, unsigned int action);
  23         void (*init_secondary)(void);
  24         void (*smp_finish)(void);
  25         void (*cpus_done)(void);
  26         void (*boot_secondary)(int cpu, struct task_struct *idle);
  27         void (*smp_setup)(void);
  28         void (*prepare_cpus)(unsigned int max_cpus);
  29 #ifdef CONFIG_HOTPLUG_CPU
  30         int (*cpu_disable)(void);
  31         void (*cpu_die)(unsigned int cpu);
  32 #endif
  33 };
  34
  35 extern void register_smp_ops(struct plat_smp_ops *ops);
  36
  37 static inline void plat_smp_setup(void)
  38 {
  39         extern struct plat_smp_ops *mp_ops;     /* private */
  40
  41         mp_ops->smp_setup();
  42 }
  43
  44 #else /* !CONFIG_SMP */
  45
  46 struct plat_smp_ops;
  47
  48 static inline void plat_smp_setup(void)
  49 {
  50         /* UP, nothing to do ...  */
  51 }
  52
  53 static inline void register_smp_ops(struct plat_smp_ops *ops)
  54 {
  55 }
  56
  57 #endif /* !CONFIG_SMP */
  58
  59 extern struct plat_smp_ops up_smp_ops;
  60 extern struct plat_smp_ops cmp_smp_ops;
  61 extern struct plat_smp_ops vsmp_smp_ops;
  62
  63 #endif /* __ASM_SMP_OPS_H */