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)(cpumask_t 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 };
  30
  31 extern void register_smp_ops(struct plat_smp_ops *ops);
  32
  33 static inline void plat_smp_setup(void)
  34 {
  35         extern struct plat_smp_ops *mp_ops;     /* private */
  36
  37         mp_ops->smp_setup();
  38 }
  39
  40 #else /* !CONFIG_SMP */
  41
  42 struct plat_smp_ops;
  43
  44 static inline void plat_smp_setup(void)
  45 {
  46         /* UP, nothing to do ...  */
  47 }
  48
  49 static inline void register_smp_ops(struct plat_smp_ops *ops)
  50 {
  51 }
  52
  53 #endif /* !CONFIG_SMP */
  54
  55 extern struct plat_smp_ops up_smp_ops;
  56 extern struct plat_smp_ops cmp_smp_ops;
  57 extern struct plat_smp_ops vsmp_smp_ops;
  58
  59 #endif /* __ASM_SMP_OPS_H */