| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 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 |
| 12 | |
| 13 | #include <linux/config.h> |
| 14 | #include <linux/threads.h> |
| 15 | #include <linux/cpumask.h> |
| 16 | #include <linux/thread_info.h> |
| 17 | |
| 18 | #include <asm/arch/smp.h> |
| 19 | |
| 20 | #ifndef CONFIG_SMP |
| 21 | # error "<asm-arm/smp.h> included in non-SMP build" |
| 22 | #endif |
| 23 | |
| 24 | #define smp_processor_id() (current_thread_info()->cpu) |
| 25 | |
| 26 | extern cpumask_t cpu_present_mask; |
| 27 | #define cpu_possible_map cpu_present_mask |
| 28 | |
| 29 | /* |
| 30 | * at the moment, there's not a big penalty for changing CPUs |
| 31 | * (the >big< penalty is running SMP in the first place) |
| 32 | */ |
| 33 | #define PROC_CHANGE_PENALTY 15 |
| 34 | |
| 35 | struct seq_file; |
| 36 | |
| 37 | /* |
| 38 | * generate IPI list text |
| 39 | */ |
| 40 | extern void show_ipi_list(struct seq_file *p); |
| 41 | |
| 42 | /* |
| 43 | * Move global data into per-processor storage. |
| 44 | */ |
| 45 | extern void smp_store_cpu_info(unsigned int cpuid); |
| 46 | |
| 47 | /* |
| 48 | * Raise an IPI cross call on CPUs in callmap. |
| 49 | */ |
| 50 | extern void smp_cross_call(cpumask_t callmap); |
| 51 | |
| 52 | /* |
| 53 | * Boot a secondary CPU, and assign it the specified idle task. |
| 54 | * This also gives us the initial stack to use for this CPU. |
| 55 | */ |
| 56 | extern int boot_secondary(unsigned int cpu, struct task_struct *); |
| 57 | |
| 58 | #endif /* ifndef __ASM_ARM_SMP_H */ |