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1da177e4 LT |
1 | #ifndef _ASM_LOCAL_H |
2 | #define _ASM_LOCAL_H | |
3 | ||
1da177e4 LT |
4 | #include <linux/percpu.h> |
5 | #include <asm/atomic.h> | |
6 | ||
875d43e7 | 7 | #ifdef CONFIG_32BIT |
1da177e4 LT |
8 | |
9 | typedef atomic_t local_t; | |
10 | ||
11 | #define LOCAL_INIT(i) ATOMIC_INIT(i) | |
12 | #define local_read(v) atomic_read(v) | |
13 | #define local_set(v,i) atomic_set(v,i) | |
14 | ||
15 | #define local_inc(v) atomic_inc(v) | |
16 | #define local_dec(v) atomic_dec(v) | |
17 | #define local_add(i, v) atomic_add(i, v) | |
18 | #define local_sub(i, v) atomic_sub(i, v) | |
19 | ||
20 | #endif | |
21 | ||
875d43e7 | 22 | #ifdef CONFIG_64BIT |
1da177e4 LT |
23 | |
24 | typedef atomic64_t local_t; | |
25 | ||
26 | #define LOCAL_INIT(i) ATOMIC64_INIT(i) | |
27 | #define local_read(v) atomic64_read(v) | |
28 | #define local_set(v,i) atomic64_set(v,i) | |
29 | ||
30 | #define local_inc(v) atomic64_inc(v) | |
31 | #define local_dec(v) atomic64_dec(v) | |
32 | #define local_add(i, v) atomic64_add(i, v) | |
33 | #define local_sub(i, v) atomic64_sub(i, v) | |
34 | ||
35 | #endif | |
36 | ||
37 | #define __local_inc(v) ((v)->counter++) | |
38 | #define __local_dec(v) ((v)->counter--) | |
39 | #define __local_add(i,v) ((v)->counter+=(i)) | |
40 | #define __local_sub(i,v) ((v)->counter-=(i)) | |
41 | ||
42 | /* | |
43 | * Use these for per-cpu local_t variables: on some archs they are | |
44 | * much more efficient than these naive implementations. Note they take | |
45 | * a variable, not an address. | |
46 | */ | |
47 | #define cpu_local_read(v) local_read(&__get_cpu_var(v)) | |
48 | #define cpu_local_set(v, i) local_set(&__get_cpu_var(v), (i)) | |
49 | ||
50 | #define cpu_local_inc(v) local_inc(&__get_cpu_var(v)) | |
51 | #define cpu_local_dec(v) local_dec(&__get_cpu_var(v)) | |
52 | #define cpu_local_add(i, v) local_add((i), &__get_cpu_var(v)) | |
53 | #define cpu_local_sub(i, v) local_sub((i), &__get_cpu_var(v)) | |
54 | ||
55 | #define __cpu_local_inc(v) __local_inc(&__get_cpu_var(v)) | |
56 | #define __cpu_local_dec(v) __local_dec(&__get_cpu_var(v)) | |
57 | #define __cpu_local_add(i, v) __local_add((i), &__get_cpu_var(v)) | |
58 | #define __cpu_local_sub(i, v) __local_sub((i), &__get_cpu_var(v)) | |
59 | ||
60 | #endif /* _ASM_LOCAL_H */ |