1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * This file is subject to the terms and conditions of the GNU General
3*4882a593Smuzhiyun * Public License. See the file "COPYING" in the main directory of this
4*4882a593Smuzhiyun * archive for more details.
5*4882a593Smuzhiyun *
6*4882a593Smuzhiyun * Copyright (C) 2000 - 2001 by Kanoj Sarcar (kanoj@sgi.com)
7*4882a593Smuzhiyun * Copyright (C) 2000 - 2001 by Silicon Graphics, Inc.
8*4882a593Smuzhiyun * Copyright (C) 2000, 2001, 2002 Ralf Baechle
9*4882a593Smuzhiyun * Copyright (C) 2000, 2001 Broadcom Corporation
10*4882a593Smuzhiyun */
11*4882a593Smuzhiyun #ifndef __ASM_SMP_OPS_H
12*4882a593Smuzhiyun #define __ASM_SMP_OPS_H
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun #include <linux/errno.h>
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun #include <asm/mips-cps.h>
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun #ifdef CONFIG_SMP
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun #include <linux/cpumask.h>
21*4882a593Smuzhiyun
22*4882a593Smuzhiyun struct task_struct;
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun struct plat_smp_ops {
25*4882a593Smuzhiyun void (*send_ipi_single)(int cpu, unsigned int action);
26*4882a593Smuzhiyun void (*send_ipi_mask)(const struct cpumask *mask, unsigned int action);
27*4882a593Smuzhiyun void (*init_secondary)(void);
28*4882a593Smuzhiyun void (*smp_finish)(void);
29*4882a593Smuzhiyun int (*boot_secondary)(int cpu, struct task_struct *idle);
30*4882a593Smuzhiyun void (*smp_setup)(void);
31*4882a593Smuzhiyun void (*prepare_cpus)(unsigned int max_cpus);
32*4882a593Smuzhiyun void (*prepare_boot_cpu)(void);
33*4882a593Smuzhiyun #ifdef CONFIG_HOTPLUG_CPU
34*4882a593Smuzhiyun int (*cpu_disable)(void);
35*4882a593Smuzhiyun void (*cpu_die)(unsigned int cpu);
36*4882a593Smuzhiyun #endif
37*4882a593Smuzhiyun #ifdef CONFIG_KEXEC
38*4882a593Smuzhiyun void (*kexec_nonboot_cpu)(void);
39*4882a593Smuzhiyun #endif
40*4882a593Smuzhiyun };
41*4882a593Smuzhiyun
42*4882a593Smuzhiyun extern void register_smp_ops(const struct plat_smp_ops *ops);
43*4882a593Smuzhiyun
plat_smp_setup(void)44*4882a593Smuzhiyun static inline void plat_smp_setup(void)
45*4882a593Smuzhiyun {
46*4882a593Smuzhiyun extern const struct plat_smp_ops *mp_ops; /* private */
47*4882a593Smuzhiyun
48*4882a593Smuzhiyun mp_ops->smp_setup();
49*4882a593Smuzhiyun }
50*4882a593Smuzhiyun
51*4882a593Smuzhiyun extern void mips_smp_send_ipi_single(int cpu, unsigned int action);
52*4882a593Smuzhiyun extern void mips_smp_send_ipi_mask(const struct cpumask *mask,
53*4882a593Smuzhiyun unsigned int action);
54*4882a593Smuzhiyun
55*4882a593Smuzhiyun #else /* !CONFIG_SMP */
56*4882a593Smuzhiyun
57*4882a593Smuzhiyun struct plat_smp_ops;
58*4882a593Smuzhiyun
plat_smp_setup(void)59*4882a593Smuzhiyun static inline void plat_smp_setup(void)
60*4882a593Smuzhiyun {
61*4882a593Smuzhiyun /* UP, nothing to do ... */
62*4882a593Smuzhiyun }
63*4882a593Smuzhiyun
register_smp_ops(const struct plat_smp_ops * ops)64*4882a593Smuzhiyun static inline void register_smp_ops(const struct plat_smp_ops *ops)
65*4882a593Smuzhiyun {
66*4882a593Smuzhiyun }
67*4882a593Smuzhiyun
68*4882a593Smuzhiyun #endif /* !CONFIG_SMP */
69*4882a593Smuzhiyun
register_up_smp_ops(void)70*4882a593Smuzhiyun static inline int register_up_smp_ops(void)
71*4882a593Smuzhiyun {
72*4882a593Smuzhiyun #ifdef CONFIG_SMP_UP
73*4882a593Smuzhiyun extern const struct plat_smp_ops up_smp_ops;
74*4882a593Smuzhiyun
75*4882a593Smuzhiyun register_smp_ops(&up_smp_ops);
76*4882a593Smuzhiyun
77*4882a593Smuzhiyun return 0;
78*4882a593Smuzhiyun #else
79*4882a593Smuzhiyun return -ENODEV;
80*4882a593Smuzhiyun #endif
81*4882a593Smuzhiyun }
82*4882a593Smuzhiyun
register_cmp_smp_ops(void)83*4882a593Smuzhiyun static inline int register_cmp_smp_ops(void)
84*4882a593Smuzhiyun {
85*4882a593Smuzhiyun #ifdef CONFIG_MIPS_CMP
86*4882a593Smuzhiyun extern const struct plat_smp_ops cmp_smp_ops;
87*4882a593Smuzhiyun
88*4882a593Smuzhiyun if (!mips_cm_present())
89*4882a593Smuzhiyun return -ENODEV;
90*4882a593Smuzhiyun
91*4882a593Smuzhiyun register_smp_ops(&cmp_smp_ops);
92*4882a593Smuzhiyun
93*4882a593Smuzhiyun return 0;
94*4882a593Smuzhiyun #else
95*4882a593Smuzhiyun return -ENODEV;
96*4882a593Smuzhiyun #endif
97*4882a593Smuzhiyun }
98*4882a593Smuzhiyun
register_vsmp_smp_ops(void)99*4882a593Smuzhiyun static inline int register_vsmp_smp_ops(void)
100*4882a593Smuzhiyun {
101*4882a593Smuzhiyun #ifdef CONFIG_MIPS_MT_SMP
102*4882a593Smuzhiyun extern const struct plat_smp_ops vsmp_smp_ops;
103*4882a593Smuzhiyun
104*4882a593Smuzhiyun register_smp_ops(&vsmp_smp_ops);
105*4882a593Smuzhiyun
106*4882a593Smuzhiyun return 0;
107*4882a593Smuzhiyun #else
108*4882a593Smuzhiyun return -ENODEV;
109*4882a593Smuzhiyun #endif
110*4882a593Smuzhiyun }
111*4882a593Smuzhiyun
112*4882a593Smuzhiyun #ifdef CONFIG_MIPS_CPS
113*4882a593Smuzhiyun extern int register_cps_smp_ops(void);
114*4882a593Smuzhiyun #else
register_cps_smp_ops(void)115*4882a593Smuzhiyun static inline int register_cps_smp_ops(void)
116*4882a593Smuzhiyun {
117*4882a593Smuzhiyun return -ENODEV;
118*4882a593Smuzhiyun }
119*4882a593Smuzhiyun #endif
120*4882a593Smuzhiyun
121*4882a593Smuzhiyun #endif /* __ASM_SMP_OPS_H */
122