blob: bf22650b1a782738275b63cdf8e59fc33450c4ca (
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
|
/*
* Copyright (C) 2012 ARM Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __ASM_SMP_H
#define __ASM_SMP_H
#include <linux/threads.h>
#include <linux/cpumask.h>
#include <linux/thread_info.h>
#ifndef CONFIG_SMP
# error "<asm/smp.h> included in non-SMP build"
#endif
#define raw_smp_processor_id() (current_thread_info()->cpu)
struct seq_file;
/*
* generate IPI list text
*/
extern void show_ipi_list(struct seq_file *p, int prec);
/*
* Called from C code, this handles an IPI.
*/
extern void handle_IPI(int ipinr, struct pt_regs *regs);
/*
* Discover the set of possible CPUs and determine their
* SMP operations.
*/
extern void of_smp_init_cpus(void);
/*
* Provide a function to raise an IPI cross call on CPUs in callmap.
*/
extern void set_smp_cross_call(void (*)(const struct cpumask *, unsigned int));
extern void (*__smp_cross_call)(const struct cpumask *, unsigned int);
/*
* Called from the secondary holding pen, this is the secondary CPU entry point.
*/
asmlinkage void secondary_start_kernel(void);
/*
* Initial data for bringing up a secondary CPU.
*/
struct secondary_data {
void *stack;
};
extern struct secondary_data secondary_data;
extern void secondary_entry(void);
extern void arch_send_call_function_single_ipi(int cpu);
extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
extern int __cpu_disable(void);
extern void __cpu_die(unsigned int cpu);
extern void cpu_die(void);
#endif /* ifndef __ASM_SMP_H */
|
