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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 | ||
237036de PB |
16 | #include <asm/mips-cm.h> |
17 | ||
87353d8a RB |
18 | #ifdef CONFIG_SMP |
19 | ||
20 | #include <linux/cpumask.h> | |
21 | ||
f5fd02a3 RB |
22 | struct task_struct; |
23 | ||
87353d8a RB |
24 | struct plat_smp_ops { |
25 | void (*send_ipi_single)(int cpu, unsigned int action); | |
48a048fe | 26 | void (*send_ipi_mask)(const struct cpumask *mask, unsigned int action); |
87353d8a RB |
27 | void (*init_secondary)(void); |
28 | void (*smp_finish)(void); | |
87353d8a RB |
29 | void (*boot_secondary)(int cpu, struct task_struct *idle); |
30 | void (*smp_setup)(void); | |
31 | void (*prepare_cpus)(unsigned int max_cpus); | |
1b2bc75c RB |
32 | #ifdef CONFIG_HOTPLUG_CPU |
33 | int (*cpu_disable)(void); | |
34 | void (*cpu_die)(unsigned int cpu); | |
35 | #endif | |
87353d8a RB |
36 | }; |
37 | ||
38 | extern void register_smp_ops(struct plat_smp_ops *ops); | |
39 | ||
40 | static inline void plat_smp_setup(void) | |
41 | { | |
42 | extern struct plat_smp_ops *mp_ops; /* private */ | |
43 | ||
44 | mp_ops->smp_setup(); | |
45 | } | |
46 | ||
b966087b PB |
47 | extern void gic_send_ipi_single(int cpu, unsigned int action); |
48 | extern void gic_send_ipi_mask(const struct cpumask *mask, unsigned int action); | |
49 | ||
87353d8a RB |
50 | #else /* !CONFIG_SMP */ |
51 | ||
52 | struct plat_smp_ops; | |
53 | ||
54 | static inline void plat_smp_setup(void) | |
55 | { | |
56 | /* UP, nothing to do ... */ | |
57 | } | |
58 | ||
59 | static inline void register_smp_ops(struct plat_smp_ops *ops) | |
60 | { | |
61 | } | |
62 | ||
63 | #endif /* !CONFIG_SMP */ | |
64 | ||
852fe310 RB |
65 | static inline int register_up_smp_ops(void) |
66 | { | |
67 | #ifdef CONFIG_SMP_UP | |
68 | extern struct plat_smp_ops up_smp_ops; | |
69 | ||
70 | register_smp_ops(&up_smp_ops); | |
71 | ||
72 | return 0; | |
73 | #else | |
74 | return -ENODEV; | |
75 | #endif | |
76 | } | |
77 | ||
78 | static inline int register_cmp_smp_ops(void) | |
79 | { | |
80 | #ifdef CONFIG_MIPS_CMP | |
81 | extern struct plat_smp_ops cmp_smp_ops; | |
82 | ||
237036de PB |
83 | if (!mips_cm_present()) |
84 | return -ENODEV; | |
85 | ||
852fe310 RB |
86 | register_smp_ops(&cmp_smp_ops); |
87 | ||
88 | return 0; | |
89 | #else | |
90 | return -ENODEV; | |
91 | #endif | |
92 | } | |
93 | ||
94 | static inline int register_vsmp_smp_ops(void) | |
95 | { | |
96 | #ifdef CONFIG_MIPS_MT_SMP | |
97 | extern struct plat_smp_ops vsmp_smp_ops; | |
98 | ||
99 | register_smp_ops(&vsmp_smp_ops); | |
100 | ||
101 | return 0; | |
102 | #else | |
103 | return -ENODEV; | |
104 | #endif | |
105 | } | |
87353d8a | 106 | |
0ee958e1 PB |
107 | #ifdef CONFIG_MIPS_CPS |
108 | extern int register_cps_smp_ops(void); | |
109 | #else | |
110 | static inline int register_cps_smp_ops(void) | |
111 | { | |
112 | return -ENODEV; | |
113 | } | |
114 | #endif | |
115 | ||
87353d8a | 116 | #endif /* __ASM_SMP_OPS_H */ |