projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | #ifndef __ASM_SH_SMP_H |
| 2 | #define __ASM_SH_SMP_H | |
| 3 | ||
| 1da177e4 LT |
4 | #include <linux/bitops.h> |
| 5 | #include <linux/cpumask.h> | |
| 3366e358 | 6 | #include <asm/smp-ops.h> |
| 1da177e4 LT |
7 | |
| 8 | #ifdef CONFIG_SMP | |
| 9 | ||
| 66c5227e | 10 | #include <linux/spinlock.h> |
| 60063497 | 11 | #include <linux/atomic.h> |
| 1da177e4 | 12 | #include <asm/current.h> |
| 9715b8c7 | 13 | #include <asm/percpu.h> |
| 1da177e4 | 14 | |
| 39c715b7 | 15 | #define raw_smp_processor_id() (current_thread_info()->cpu) |
| aba1030a PM |
16 | |
| 17 | /* Map from cpu id to sequential logical cpu number. */ | |
| 18 | extern int __cpu_number_map[NR_CPUS]; | |
| 19 | #define cpu_number_map(cpu) __cpu_number_map[cpu] | |
| 20 | ||
| 21 | /* The reverse map from sequential logical cpu number to cpu id. */ | |
| 22 | extern int __cpu_logical_map[NR_CPUS]; | |
| 23 | #define cpu_logical_map(cpu) __cpu_logical_map[cpu] | |
| 1da177e4 | 24 | |
| 6f52707e PM |
25 | enum { |
| 26 | SMP_MSG_FUNCTION, | |
| 27 | SMP_MSG_RESCHEDULE, | |
| 28 | SMP_MSG_FUNCTION_SINGLE, | |
| 29 | SMP_MSG_TIMER, | |
| 30 | ||
| 31 | SMP_MSG_NR, /* must be last */ | |
| 32 | }; | |
| 1da177e4 | 33 | |
| 9715b8c7 PM |
34 | DECLARE_PER_CPU(int, cpu_state); |
| 35 | ||
| 173a44dd | 36 | void smp_message_recv(unsigned int msg); |
| 8c24594d | 37 | |
| 6f52707e | 38 | void arch_send_call_function_single_ipi(int cpu); |
| 763142d1 PM |
39 | void arch_send_call_function_ipi_mask(const struct cpumask *mask); |
| 40 | ||
| 41 | void native_play_dead(void); | |
| 42 | void native_cpu_die(unsigned int cpu); | |
| 43 | int native_cpu_disable(unsigned int cpu); | |
| 44 | ||
| 45 | #ifdef CONFIG_HOTPLUG_CPU | |
| 46 | void play_dead_common(void); | |
| 47 | extern int __cpu_disable(void); | |
| 48 | ||
| 49 | static inline void __cpu_die(unsigned int cpu) | |
| 50 | { | |
| 51 | extern struct plat_smp_ops *mp_ops; /* private */ | |
| 52 | ||
| 53 | mp_ops->cpu_die(cpu); | |
| 54 | } | |
| 55 | #endif | |
| aba1030a | 56 | |
| 3366e358 PM |
57 | static inline int hard_smp_processor_id(void) |
| 58 | { | |
| 59 | extern struct plat_smp_ops *mp_ops; /* private */ | |
| 60 | ||
| 61 | if (!mp_ops) | |
| 62 | return 0; /* boot CPU */ | |
| 63 | ||
| 64 | return mp_ops->smp_processor_id(); | |
| 65 | } | |
| 66 | ||
| 044b81f8 RF |
67 | struct of_cpu_method { |
| 68 | const char *method; | |
| 69 | struct plat_smp_ops *ops; | |
| 70 | }; | |
| 71 | ||
| 72 | #define CPU_METHOD_OF_DECLARE(name, _method, _ops) \ | |
| 73 | static const struct of_cpu_method __cpu_method_of_table_##name \ | |
| 74 | __used __section(__cpu_method_of_table) \ | |
| 75 | = { .method = _method, .ops = _ops } | |
| 76 | ||
| aba1030a | 77 | #else |
| 1da177e4 | 78 | |
| 027e56e6 PM |
79 | #define hard_smp_processor_id() (0) |
| 80 | ||
| aba1030a PM |
81 | #endif /* CONFIG_SMP */ |
| 82 | ||
| 1da177e4 | 83 | #endif /* __ASM_SH_SMP_H */ |