blob: 100bf241340b92373bba3787a27272c795034283 (
plain)
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
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_SH_SMP_H
#define __ASM_SH_SMP_H
#include <linux/bitops.h>
#include <linux/cpumask.h>
#include <asm/smp-ops.h>
#ifdef CONFIG_SMP
#include <linux/atomic.h>
#include <asm/current.h>
#include <asm/percpu.h>
#define raw_smp_processor_id() (current_thread_info()->cpu)
/* Map from cpu id to sequential logical cpu number. */
extern int __cpu_number_map[NR_CPUS];
#define cpu_number_map(cpu) __cpu_number_map[cpu]
/* The reverse map from sequential logical cpu number to cpu id. */
extern int __cpu_logical_map[NR_CPUS];
#define cpu_logical_map(cpu) __cpu_logical_map[cpu]
enum {
SMP_MSG_FUNCTION,
SMP_MSG_RESCHEDULE,
SMP_MSG_FUNCTION_SINGLE,
SMP_MSG_TIMER,
SMP_MSG_NR, /* must be last */
};
DECLARE_PER_CPU(int, cpu_state);
void smp_message_recv(unsigned int msg);
void arch_send_call_function_single_ipi(int cpu);
void arch_send_call_function_ipi_mask(const struct cpumask *mask);
void native_play_dead(void);
void native_cpu_die(unsigned int cpu);
int native_cpu_disable(unsigned int cpu);
#ifdef CONFIG_HOTPLUG_CPU
void play_dead_common(void);
extern int __cpu_disable(void);
static inline void __cpu_die(unsigned int cpu)
{
extern struct plat_smp_ops *mp_ops; /* private */
mp_ops->cpu_die(cpu);
}
#endif
static inline int hard_smp_processor_id(void)
{
extern struct plat_smp_ops *mp_ops; /* private */
if (!mp_ops)
return 0; /* boot CPU */
return mp_ops->smp_processor_id();
}
struct of_cpu_method {
const char *method;
struct plat_smp_ops *ops;
};
#define CPU_METHOD_OF_DECLARE(name, _method, _ops) \
static const struct of_cpu_method __cpu_method_of_table_##name \
__used __section(__cpu_method_of_table) \
= { .method = _method, .ops = _ops }
#else
#define hard_smp_processor_id() (0)
#endif /* CONFIG_SMP */
#endif /* __ASM_SH_SMP_H */
|
