blob: 65618ff1280c9687e0eeeb9aa14ac90311a88915 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
/*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file "COPYING" in the main directory of this
* archive for more details.
*
* Copyright (C) 2000 - 2001 by Kanoj Sarcar (kanoj@sgi.com)
* Copyright (C) 2000 - 2001 by Silicon Graphics, Inc.
* Copyright (C) 2000, 2001, 2002 Ralf Baechle
* Copyright (C) 2000, 2001 Broadcom Corporation
*/
#ifndef __ASM_SMP_OPS_H
#define __ASM_SMP_OPS_H
#include <linux/errno.h>
#include <asm/mips-cps.h>
#ifdef CONFIG_SMP
#include <linux/cpumask.h>
struct task_struct;
struct plat_smp_ops {
void (*send_ipi_single)(int cpu, unsigned int action);
void (*send_ipi_mask)(const struct cpumask *mask, unsigned int action);
void (*init_secondary)(void);
void (*smp_finish)(void);
int (*boot_secondary)(int cpu, struct task_struct *idle);
void (*smp_setup)(void);
void (*prepare_cpus)(unsigned int max_cpus);
void (*prepare_boot_cpu)(void);
#ifdef CONFIG_HOTPLUG_CPU
int (*cpu_disable)(void);
void (*cpu_die)(unsigned int cpu);
#endif
#ifdef CONFIG_KEXEC
void (*kexec_nonboot_cpu)(void);
#endif
};
extern void register_smp_ops(const struct plat_smp_ops *ops);
static inline void plat_smp_setup(void)
{
extern const struct plat_smp_ops *mp_ops; /* private */
mp_ops->smp_setup();
}
extern void mips_smp_send_ipi_single(int cpu, unsigned int action);
extern void mips_smp_send_ipi_mask(const struct cpumask *mask,
unsigned int action);
#else /* !CONFIG_SMP */
struct plat_smp_ops;
static inline void plat_smp_setup(void)
{
/* UP, nothing to do ... */
}
static inline void register_smp_ops(const struct plat_smp_ops *ops)
{
}
#endif /* !CONFIG_SMP */
static inline int register_up_smp_ops(void)
{
#ifdef CONFIG_SMP_UP
extern const struct plat_smp_ops up_smp_ops;
register_smp_ops(&up_smp_ops);
return 0;
#else
return -ENODEV;
#endif
}
static inline int register_cmp_smp_ops(void)
{
#ifdef CONFIG_MIPS_CMP
extern const struct plat_smp_ops cmp_smp_ops;
if (!mips_cm_present())
return -ENODEV;
register_smp_ops(&cmp_smp_ops);
return 0;
#else
return -ENODEV;
#endif
}
static inline int register_vsmp_smp_ops(void)
{
#ifdef CONFIG_MIPS_MT_SMP
extern const struct plat_smp_ops vsmp_smp_ops;
register_smp_ops(&vsmp_smp_ops);
return 0;
#else
return -ENODEV;
#endif
}
#ifdef CONFIG_MIPS_CPS
extern int register_cps_smp_ops(void);
#else
static inline int register_cps_smp_ops(void)
{
return -ENODEV;
}
#endif
#endif /* __ASM_SMP_OPS_H */
|
