projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 08e875c1 CM |
1 | /* |
| 2 | * Copyright (C) 2012 ARM Ltd. | |
| 3 | * | |
| 4 | * This program is free software; you can redistribute it and/or modify | |
| 5 | * it under the terms of the GNU General Public License version 2 as | |
| 6 | * published by the Free Software Foundation. | |
| 7 | * | |
| 8 | * This program is distributed in the hope that it will be useful, | |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 11 | * GNU General Public License for more details. | |
| 12 | * | |
| 13 | * You should have received a copy of the GNU General Public License | |
| 14 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 15 | */ | |
| 16 | #ifndef __ASM_SMP_H | |
| 17 | #define __ASM_SMP_H | |
| 18 | ||
| 19 | #include <linux/threads.h> | |
| 20 | #include <linux/cpumask.h> | |
| 21 | #include <linux/thread_info.h> | |
| 22 | ||
| 23 | #ifndef CONFIG_SMP | |
| 24 | # error "<asm/smp.h> included in non-SMP build" | |
| 25 | #endif | |
| 26 | ||
| 27 | #define raw_smp_processor_id() (current_thread_info()->cpu) | |
| 28 | ||
| 29 | struct seq_file; | |
| 30 | ||
| 31 | /* | |
| 32 | * generate IPI list text | |
| 33 | */ | |
| 34 | extern void show_ipi_list(struct seq_file *p, int prec); | |
| 35 | ||
| 36 | /* | |
| 37 | * Called from C code, this handles an IPI. | |
| 38 | */ | |
| 39 | extern void handle_IPI(int ipinr, struct pt_regs *regs); | |
| 40 | ||
| 41 | /* | |
| 42 | * Setup the set of possible CPUs (via set_cpu_possible) | |
| 43 | */ | |
| 44 | extern void smp_init_cpus(void); | |
| 45 | ||
| 46 | /* | |
| 47 | * Provide a function to raise an IPI cross call on CPUs in callmap. | |
| 48 | */ | |
| 49 | extern void set_smp_cross_call(void (*)(const struct cpumask *, unsigned int)); | |
| 50 | ||
| 36310736 FW |
51 | extern void (*__smp_cross_call)(const struct cpumask *, unsigned int); |
| 52 | ||
| 08e875c1 CM |
53 | /* |
| 54 | * Called from the secondary holding pen, this is the secondary CPU entry point. | |
| 55 | */ | |
| 56 | asmlinkage void secondary_start_kernel(void); | |
| 57 | ||
| 58 | /* | |
| 59 | * Initial data for bringing up a secondary CPU. | |
| 60 | */ | |
| 61 | struct secondary_data { | |
| 62 | void *stack; | |
| 63 | }; | |
| 64 | extern struct secondary_data secondary_data; | |
| 652af899 | 65 | extern void secondary_entry(void); |
| 08e875c1 CM |
66 | |
| 67 | extern void arch_send_call_function_single_ipi(int cpu); | |
| 68 | extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); | |
| 69 | ||
| 9327e2c6 MR |
70 | extern int __cpu_disable(void); |
| 71 | ||
| 72 | extern void __cpu_die(unsigned int cpu); | |
| 73 | extern void cpu_die(void); | |
| 74 | ||
| 08e875c1 | 75 | #endif /* ifndef __ASM_SMP_H */ |