projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 87353d8a RB |
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 | ||
| 4f55fd75 RB |
14 | #include <linux/errno.h> |
| 15 | ||
| 87353d8a RB |
16 | #ifdef CONFIG_SMP |
| 17 | ||
| 18 | #include <linux/cpumask.h> | |
| 19 | ||
| f5fd02a3 RB |
20 | struct task_struct; |
| 21 | ||
| 87353d8a RB |
22 | struct plat_smp_ops { |
| 23 | void (*send_ipi_single)(int cpu, unsigned int action); | |
| 48a048fe | 24 | void (*send_ipi_mask)(const struct cpumask *mask, unsigned int action); |
| 87353d8a RB |
25 | void (*init_secondary)(void); |
| 26 | void (*smp_finish)(void); | |
| 27 | void (*cpus_done)(void); | |
| 28 | void (*boot_secondary)(int cpu, struct task_struct *idle); | |
| 29 | void (*smp_setup)(void); | |
| 30 | void (*prepare_cpus)(unsigned int max_cpus); | |
| 1b2bc75c RB |
31 | #ifdef CONFIG_HOTPLUG_CPU |
| 32 | int (*cpu_disable)(void); | |
| 33 | void (*cpu_die)(unsigned int cpu); | |
| 34 | #endif | |
| 87353d8a RB |
35 | }; |
| 36 | ||
| 37 | extern void register_smp_ops(struct plat_smp_ops *ops); | |
| 38 | ||
| 39 | static inline void plat_smp_setup(void) | |
| 40 | { | |
| 41 | extern struct plat_smp_ops *mp_ops; /* private */ | |
| 42 | ||
| 43 | mp_ops->smp_setup(); | |
| 44 | } | |
| 45 | ||
| 46 | #else /* !CONFIG_SMP */ | |
| 47 | ||
| 48 | struct plat_smp_ops; | |
| 49 | ||
| 50 | static inline void plat_smp_setup(void) | |
| 51 | { | |
| 52 | /* UP, nothing to do ... */ | |
| 53 | } | |
| 54 | ||
| 55 | static inline void register_smp_ops(struct plat_smp_ops *ops) | |
| 56 | { | |
| 57 | } | |
| 58 | ||
| 59 | #endif /* !CONFIG_SMP */ | |
| 60 | ||
| 852fe310 RB |
61 | static inline int register_up_smp_ops(void) |
| 62 | { | |
| 63 | #ifdef CONFIG_SMP_UP | |
| 64 | extern struct plat_smp_ops up_smp_ops; | |
| 65 | ||
| 66 | register_smp_ops(&up_smp_ops); | |
| 67 | ||
| 68 | return 0; | |
| 69 | #else | |
| 70 | return -ENODEV; | |
| 71 | #endif | |
| 72 | } | |
| 73 | ||
| 74 | static inline int register_cmp_smp_ops(void) | |
| 75 | { | |
| 76 | #ifdef CONFIG_MIPS_CMP | |
| 77 | extern struct plat_smp_ops cmp_smp_ops; | |
| 78 | ||
| 79 | register_smp_ops(&cmp_smp_ops); | |
| 80 | ||
| 81 | return 0; | |
| 82 | #else | |
| 83 | return -ENODEV; | |
| 84 | #endif | |
| 85 | } | |
| 86 | ||
| 87 | static inline int register_vsmp_smp_ops(void) | |
| 88 | { | |
| 89 | #ifdef CONFIG_MIPS_MT_SMP | |
| 90 | extern struct plat_smp_ops vsmp_smp_ops; | |
| 91 | ||
| 92 | register_smp_ops(&vsmp_smp_ops); | |
| 93 | ||
| 94 | return 0; | |
| 95 | #else | |
| 96 | return -ENODEV; | |
| 97 | #endif | |
| 98 | } | |
| 87353d8a RB |
99 | |
| 100 | #endif /* __ASM_SMP_OPS_H */ |