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#include <linux/errno.h>
15
16#include <asm/mips-cm.h>
17
18#ifdef CONFIG_SMP
19
20#include <linux/cpumask.h>
21
22struct task_struct;
23
24struct plat_smp_ops {
25	void (*send_ipi_single)(int cpu, unsigned int action);
26	void (*send_ipi_mask)(const struct cpumask *mask, unsigned int action);
27	void (*init_secondary)(void);
28	void (*smp_finish)(void);
29	void (*boot_secondary)(int cpu, struct task_struct *idle);
30	void (*smp_setup)(void);
31	void (*prepare_cpus)(unsigned int max_cpus);
32#ifdef CONFIG_HOTPLUG_CPU
33	int (*cpu_disable)(void);
34	void (*cpu_die)(unsigned int cpu);
35#endif
36};
37
38extern void register_smp_ops(struct plat_smp_ops *ops);
39
40static inline void plat_smp_setup(void)
41{
42	extern struct plat_smp_ops *mp_ops;	/* private */
43
44	mp_ops->smp_setup();
45}
46
47extern void gic_send_ipi_single(int cpu, unsigned int action);
48extern void gic_send_ipi_mask(const struct cpumask *mask, unsigned int action);
49
50#else /* !CONFIG_SMP */
51
52struct plat_smp_ops;
53
54static inline void plat_smp_setup(void)
55{
56	/* UP, nothing to do ...  */
57}
58
59static inline void register_smp_ops(struct plat_smp_ops *ops)
60{
61}
62
63#endif /* !CONFIG_SMP */
64
65static 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
78static inline int register_cmp_smp_ops(void)
79{
80#ifdef CONFIG_MIPS_CMP
81	extern struct plat_smp_ops cmp_smp_ops;
82
83	if (!mips_cm_present())
84		return -ENODEV;
85
86	register_smp_ops(&cmp_smp_ops);
87
88	return 0;
89#else
90	return -ENODEV;
91#endif
92}
93
94static 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}
106
107#ifdef CONFIG_MIPS_CPS
108extern int register_cps_smp_ops(void);
109#else
110static inline int register_cps_smp_ops(void)
111{
112	return -ENODEV;
113}
114#endif
115
116#endif /* __ASM_SMP_OPS_H */
117