projects / linux.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> | |
| 6 | ||
| 7 | #ifdef CONFIG_SMP | |
| 8 | ||
| 66c5227e | 9 | #include <linux/spinlock.h> |
| 1da177e4 LT |
10 | #include <asm/atomic.h> |
| 11 | #include <asm/current.h> | |
| 12 | ||
| 39c715b7 | 13 | #define raw_smp_processor_id() (current_thread_info()->cpu) |
| aba1030a PM |
14 | #define hard_smp_processor_id() plat_smp_processor_id() |
| 15 | ||
| 16 | /* Map from cpu id to sequential logical cpu number. */ | |
| 17 | extern int __cpu_number_map[NR_CPUS]; | |
| 18 | #define cpu_number_map(cpu) __cpu_number_map[cpu] | |
| 19 | ||
| 20 | /* The reverse map from sequential logical cpu number to cpu id. */ | |
| 21 | extern int __cpu_logical_map[NR_CPUS]; | |
| 22 | #define cpu_logical_map(cpu) __cpu_logical_map[cpu] | |
| 1da177e4 LT |
23 | |
| 24 | /* I've no idea what the real meaning of this is */ | |
| 25 | #define PROC_CHANGE_PENALTY 20 | |
| 26 | ||
| 27 | #define NO_PROC_ID (-1) | |
| 28 | ||
| 29 | struct smp_fn_call_struct { | |
| 30 | spinlock_t lock; | |
| 31 | atomic_t finished; | |
| 32 | void (*fn)(void *); | |
| 33 | void *data; | |
| 34 | }; | |
| 35 | ||
| 36 | extern struct smp_fn_call_struct smp_fn_call; | |
| 37 | ||
| aba1030a PM |
38 | #define SMP_MSG_FUNCTION 0 |
| 39 | #define SMP_MSG_RESCHEDULE 1 | |
| 40 | #define SMP_MSG_NR 2 | |
| 1da177e4 | 41 | |
| aba1030a PM |
42 | void plat_smp_setup(void); |
| 43 | void plat_prepare_cpus(unsigned int max_cpus); | |
| 44 | int plat_smp_processor_id(void); | |
| 45 | void plat_start_cpu(unsigned int cpu, unsigned long entry_point); | |
| 46 | void plat_send_ipi(unsigned int cpu, unsigned int message); | |
| 47 | int plat_register_ipi_handler(unsigned int message, | |
| 48 | void (*handler)(void *), void *arg); | |
| 49 | ||
| 50 | #else | |
| 1da177e4 | 51 | |
| 027e56e6 PM |
52 | #define hard_smp_processor_id() (0) |
| 53 | ||
| aba1030a PM |
54 | #endif /* CONFIG_SMP */ |
| 55 | ||
| 1da177e4 | 56 | #endif /* __ASM_SH_SMP_H */ |