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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 | ||
aba1030a PM |
29 | #define SMP_MSG_FUNCTION 0 |
30 | #define SMP_MSG_RESCHEDULE 1 | |
490f5de5 JA |
31 | #define SMP_MSG_FUNCTION_SINGLE 2 |
32 | #define SMP_MSG_NR 3 | |
1da177e4 | 33 | |
aba1030a PM |
34 | void plat_smp_setup(void); |
35 | void plat_prepare_cpus(unsigned int max_cpus); | |
36 | int plat_smp_processor_id(void); | |
37 | void plat_start_cpu(unsigned int cpu, unsigned long entry_point); | |
38 | void plat_send_ipi(unsigned int cpu, unsigned int message); | |
39 | int plat_register_ipi_handler(unsigned int message, | |
40 | void (*handler)(void *), void *arg); | |
490f5de5 JA |
41 | extern void arch_send_call_function_single_ipi(int cpu); |
42 | extern void arch_send_call_function_ipi(cpumask_t mask); | |
aba1030a PM |
43 | |
44 | #else | |
1da177e4 | 45 | |
027e56e6 PM |
46 | #define hard_smp_processor_id() (0) |
47 | ||
aba1030a PM |
48 | #endif /* CONFIG_SMP */ |
49 | ||
1da177e4 | 50 | #endif /* __ASM_SH_SMP_H */ |