1/*
 2 *  arch/arm/include/asm/smp.h
 3 *
 4 *  Copyright (C) 2004-2005 ARM Ltd.
 5 *
 6 * This program is free software; you can redistribute it and/or modify
 7 * it under the terms of the GNU General Public License version 2 as
 8 * published by the Free Software Foundation.
 9 */
10#ifndef __ASM_ARM_SMP_H
11#define __ASM_ARM_SMP_H
12
13#include <linux/threads.h>
14#include <linux/cpumask.h>
15#include <linux/thread_info.h>
16
17#ifndef CONFIG_SMP
18# error "<asm/smp.h> included in non-SMP build"
19#endif
20
21#define raw_smp_processor_id() (current_thread_info()->cpu)
22
23struct seq_file;
24
25/*
26 * generate IPI list text
27 */
28extern void show_ipi_list(struct seq_file *, int);
29
30/*
31 * Called from assembly code, this handles an IPI.
32 */
33asmlinkage void do_IPI(int ipinr, struct pt_regs *regs);
34
35/*
 
 
 
 
 
36 * Setup the set of possible CPUs (via set_cpu_possible)
37 */
38extern void smp_init_cpus(void);
39
40
41/*
42 * Provide a function to raise an IPI cross call on CPUs in callmap.
43 */
44extern void set_smp_cross_call(void (*)(const struct cpumask *, unsigned int));
45
46/*
47 * Boot a secondary CPU, and assign it the specified idle task.
48 * This also gives us the initial stack to use for this CPU.
49 */
50extern int boot_secondary(unsigned int cpu, struct task_struct *);
51
52/*
53 * Called from platform specific assembly code, this is the
54 * secondary CPU entry point.
55 */
56asmlinkage void secondary_start_kernel(void);
57
58/*
59 * Perform platform specific initialisation of the specified CPU.
60 */
61extern void platform_secondary_init(unsigned int cpu);
62
63/*
64 * Initialize cpu_possible map, and enable coherency
65 */
66extern void platform_smp_prepare_cpus(unsigned int);
67
68/*
69 * Initial data for bringing up a secondary CPU.
70 */
71struct secondary_data {
72	unsigned long pgdir;
73	unsigned long swapper_pg_dir;
74	void *stack;
75};
76extern struct secondary_data secondary_data;
77
78extern int __cpu_disable(void);
79extern int platform_cpu_disable(unsigned int cpu);
80
81extern void __cpu_die(unsigned int cpu);
82extern void cpu_die(void);
83
84extern void platform_cpu_die(unsigned int cpu);
85extern int platform_cpu_kill(unsigned int cpu);
86extern void platform_cpu_enable(unsigned int cpu);
87
88extern void arch_send_call_function_single_ipi(int cpu);
89extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
90
91/*
92 * show local interrupt info
93 */
94extern void show_local_irqs(struct seq_file *, int);
95
96#endif /* ifndef __ASM_ARM_SMP_H */

 1/*
 2 *  arch/arm/include/asm/smp.h
 3 *
 4 *  Copyright (C) 2004-2005 ARM Ltd.
 5 *
 6 * This program is free software; you can redistribute it and/or modify
 7 * it under the terms of the GNU General Public License version 2 as
 8 * published by the Free Software Foundation.
 9 */
10#ifndef __ASM_ARM_SMP_H
11#define __ASM_ARM_SMP_H
12
13#include <linux/threads.h>
14#include <linux/cpumask.h>
15#include <linux/thread_info.h>
16
17#ifndef CONFIG_SMP
18# error "<asm/smp.h> included in non-SMP build"
19#endif
20
21#define raw_smp_processor_id() (current_thread_info()->cpu)
22
23struct seq_file;
24
25/*
26 * generate IPI list text
27 */
28extern void show_ipi_list(struct seq_file *, int);
29
30/*
31 * Called from assembly code, this handles an IPI.
32 */
33asmlinkage void do_IPI(int ipinr, struct pt_regs *regs);
34
35/*
36 * Called from C code, this handles an IPI.
37 */
38void handle_IPI(int ipinr, struct pt_regs *regs);
39
40/*
41 * Setup the set of possible CPUs (via set_cpu_possible)
42 */
43extern void smp_init_cpus(void);
44
45
46/*
47 * Provide a function to raise an IPI cross call on CPUs in callmap.
48 */
49extern void set_smp_cross_call(void (*)(const struct cpumask *, unsigned int));
50
51/*
52 * Boot a secondary CPU, and assign it the specified idle task.
53 * This also gives us the initial stack to use for this CPU.
54 */
55extern int boot_secondary(unsigned int cpu, struct task_struct *);
56
57/*
58 * Called from platform specific assembly code, this is the
59 * secondary CPU entry point.
60 */
61asmlinkage void secondary_start_kernel(void);
62
63/*
64 * Perform platform specific initialisation of the specified CPU.
65 */
66extern void platform_secondary_init(unsigned int cpu);
67
68/*
69 * Initialize cpu_possible map, and enable coherency
70 */
71extern void platform_smp_prepare_cpus(unsigned int);
72
73/*
74 * Initial data for bringing up a secondary CPU.
75 */
76struct secondary_data {
77	unsigned long pgdir;
78	unsigned long swapper_pg_dir;
79	void *stack;
80};
81extern struct secondary_data secondary_data;
82
83extern int __cpu_disable(void);
84extern int platform_cpu_disable(unsigned int cpu);
85
86extern void __cpu_die(unsigned int cpu);
87extern void cpu_die(void);
88
89extern void platform_cpu_die(unsigned int cpu);
90extern int platform_cpu_kill(unsigned int cpu);
91extern void platform_cpu_enable(unsigned int cpu);
92
93extern void arch_send_call_function_single_ipi(int cpu);
94extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
 
 
 
 
 
95
96#endif /* ifndef __ASM_ARM_SMP_H */