ia64/linux-2.6.18-xen.hg

view include/asm-arm/smp.h @ 452:c7ed6fe5dca0

kexec: dont initialise regions in reserve_memory()

There is no need to initialise efi_memmap_res and boot_param_res in
reserve_memory() for the initial xen domain as it is done in
machine_kexec_setup_resources() using values from the kexec hypercall.

Signed-off-by: Simon Horman <horms@verge.net.au>
author Keir Fraser <keir.fraser@citrix.com>
date Thu Feb 28 10:55:18 2008 +0000 (2008-02-28)
parents 831230e53067
children
line source
1 /*
2 * linux/include/asm-arm/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
13 #include <linux/threads.h>
14 #include <linux/cpumask.h>
15 #include <linux/thread_info.h>
17 #include <asm/arch/smp.h>
19 #ifndef CONFIG_SMP
20 # error "<asm-arm/smp.h> included in non-SMP build"
21 #endif
23 #define raw_smp_processor_id() (current_thread_info()->cpu)
25 /*
26 * at the moment, there's not a big penalty for changing CPUs
27 * (the >big< penalty is running SMP in the first place)
28 */
29 #define PROC_CHANGE_PENALTY 15
31 struct seq_file;
33 /*
34 * generate IPI list text
35 */
36 extern void show_ipi_list(struct seq_file *p);
38 /*
39 * Called from assembly code, this handles an IPI.
40 */
41 asmlinkage void do_IPI(struct pt_regs *regs);
43 /*
44 * Setup the SMP cpu_possible_map
45 */
46 extern void smp_init_cpus(void);
48 /*
49 * Move global data into per-processor storage.
50 */
51 extern void smp_store_cpu_info(unsigned int cpuid);
53 /*
54 * Raise an IPI cross call on CPUs in callmap.
55 */
56 extern void smp_cross_call(cpumask_t callmap);
58 /*
59 * Broadcast a timer interrupt to the other CPUs.
60 */
61 extern void smp_send_timer(void);
63 /*
64 * Boot a secondary CPU, and assign it the specified idle task.
65 * This also gives us the initial stack to use for this CPU.
66 */
67 extern int boot_secondary(unsigned int cpu, struct task_struct *);
69 /*
70 * Called from platform specific assembly code, this is the
71 * secondary CPU entry point.
72 */
73 asmlinkage void secondary_start_kernel(void);
75 /*
76 * Perform platform specific initialisation of the specified CPU.
77 */
78 extern void platform_secondary_init(unsigned int cpu);
80 /*
81 * Initial data for bringing up a secondary CPU.
82 */
83 struct secondary_data {
84 unsigned long pgdir;
85 void *stack;
86 };
87 extern struct secondary_data secondary_data;
89 extern int __cpu_disable(void);
90 extern int mach_cpu_disable(unsigned int cpu);
92 extern void __cpu_die(unsigned int cpu);
93 extern void cpu_die(void);
95 extern void platform_cpu_die(unsigned int cpu);
96 extern int platform_cpu_kill(unsigned int cpu);
97 extern void platform_cpu_enable(unsigned int cpu);
99 #ifdef CONFIG_LOCAL_TIMERS
100 /*
101 * Setup a local timer interrupt for a CPU.
102 */
103 extern void local_timer_setup(unsigned int cpu);
105 /*
106 * Stop a local timer interrupt.
107 */
108 extern void local_timer_stop(unsigned int cpu);
110 /*
111 * Platform provides this to acknowledge a local timer IRQ
112 */
113 extern int local_timer_ack(void);
115 #else
117 static inline void local_timer_setup(unsigned int cpu)
118 {
119 }
121 static inline void local_timer_stop(unsigned int cpu)
122 {
123 }
125 #endif
127 /*
128 * show local interrupt info
129 */
130 extern void show_local_irqs(struct seq_file *);
132 /*
133 * Called from assembly, this is the local timer IRQ handler
134 */
135 asmlinkage void do_local_timer(struct pt_regs *);
137 #endif /* ifndef __ASM_ARM_SMP_H */