projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
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 | ||
| 39c715b7 | 24 | #define raw_smp_processor_id() (current_thread_info()->cpu) |
| 1da177e4 | 25 | |
| 1da177e4 LT |
26 | /* |
| 27 | * at the moment, there's not a big penalty for changing CPUs | |
| 28 | * (the >big< penalty is running SMP in the first place) | |
| 29 | */ | |
| 30 | #define PROC_CHANGE_PENALTY 15 | |
| 31 | ||
| 32 | struct seq_file; | |
| 33 | ||
| 34 | /* | |
| 35 | * generate IPI list text | |
| 36 | */ | |
| 37 | extern void show_ipi_list(struct seq_file *p); | |
| 38 | ||
| 39 | /* | |
| 40 | * Move global data into per-processor storage. | |
| 41 | */ | |
| 42 | extern void smp_store_cpu_info(unsigned int cpuid); | |
| 43 | ||
| 44 | /* | |
| 45 | * Raise an IPI cross call on CPUs in callmap. | |
| 46 | */ | |
| 47 | extern void smp_cross_call(cpumask_t callmap); | |
| 48 | ||
| 49 | /* | |
| 50 | * Boot a secondary CPU, and assign it the specified idle task. | |
| 51 | * This also gives us the initial stack to use for this CPU. | |
| 52 | */ | |
| 53 | extern int boot_secondary(unsigned int cpu, struct task_struct *); | |
| 54 | ||
| e65f38ed RK |
55 | /* |
| 56 | * Perform platform specific initialisation of the specified CPU. | |
| 57 | */ | |
| 58 | extern void platform_secondary_init(unsigned int cpu); | |
| 59 | ||
| 60 | /* | |
| 61 | * Initial data for bringing up a secondary CPU. | |
| 62 | */ | |
| 63 | struct secondary_data { | |
| 64 | unsigned long pgdir; | |
| 65 | void *stack; | |
| 66 | }; | |
| 67 | extern struct secondary_data secondary_data; | |
| 68 | ||
| 1da177e4 | 69 | #endif /* ifndef __ASM_ARM_SMP_H */ |