projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | #ifndef _ASM_LOCAL_H |
| 2 | #define _ASM_LOCAL_H | |
| 3 | ||
| 4 | #include <linux/config.h> | |
| 5 | #include <linux/percpu.h> | |
| 6 | #include <asm/atomic.h> | |
| 7 | ||
| 875d43e7 | 8 | #ifdef CONFIG_32BIT |
| 1da177e4 LT |
9 | |
| 10 | typedef atomic_t local_t; | |
| 11 | ||
| 12 | #define LOCAL_INIT(i) ATOMIC_INIT(i) | |
| 13 | #define local_read(v) atomic_read(v) | |
| 14 | #define local_set(v,i) atomic_set(v,i) | |
| 15 | ||
| 16 | #define local_inc(v) atomic_inc(v) | |
| 17 | #define local_dec(v) atomic_dec(v) | |
| 18 | #define local_add(i, v) atomic_add(i, v) | |
| 19 | #define local_sub(i, v) atomic_sub(i, v) | |
| 20 | ||
| 21 | #endif | |
| 22 | ||
| 875d43e7 | 23 | #ifdef CONFIG_64BIT |
| 1da177e4 LT |
24 | |
| 25 | typedef atomic64_t local_t; | |
| 26 | ||
| 27 | #define LOCAL_INIT(i) ATOMIC64_INIT(i) | |
| 28 | #define local_read(v) atomic64_read(v) | |
| 29 | #define local_set(v,i) atomic64_set(v,i) | |
| 30 | ||
| 31 | #define local_inc(v) atomic64_inc(v) | |
| 32 | #define local_dec(v) atomic64_dec(v) | |
| 33 | #define local_add(i, v) atomic64_add(i, v) | |
| 34 | #define local_sub(i, v) atomic64_sub(i, v) | |
| 35 | ||
| 36 | #endif | |
| 37 | ||
| 38 | #define __local_inc(v) ((v)->counter++) | |
| 39 | #define __local_dec(v) ((v)->counter--) | |
| 40 | #define __local_add(i,v) ((v)->counter+=(i)) | |
| 41 | #define __local_sub(i,v) ((v)->counter-=(i)) | |
| 42 | ||
| 43 | /* | |
| 44 | * Use these for per-cpu local_t variables: on some archs they are | |
| 45 | * much more efficient than these naive implementations. Note they take | |
| 46 | * a variable, not an address. | |
| 47 | */ | |
| 48 | #define cpu_local_read(v) local_read(&__get_cpu_var(v)) | |
| 49 | #define cpu_local_set(v, i) local_set(&__get_cpu_var(v), (i)) | |
| 50 | ||
| 51 | #define cpu_local_inc(v) local_inc(&__get_cpu_var(v)) | |
| 52 | #define cpu_local_dec(v) local_dec(&__get_cpu_var(v)) | |
| 53 | #define cpu_local_add(i, v) local_add((i), &__get_cpu_var(v)) | |
| 54 | #define cpu_local_sub(i, v) local_sub((i), &__get_cpu_var(v)) | |
| 55 | ||
| 56 | #define __cpu_local_inc(v) __local_inc(&__get_cpu_var(v)) | |
| 57 | #define __cpu_local_dec(v) __local_dec(&__get_cpu_var(v)) | |
| 58 | #define __cpu_local_add(i, v) __local_add((i), &__get_cpu_var(v)) | |
| 59 | #define __cpu_local_sub(i, v) __local_sub((i), &__get_cpu_var(v)) | |
| 60 | ||
| 61 | #endif /* _ASM_LOCAL_H */ |