| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 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 | |
| 8 | #ifndef __s390x__ |
| 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 | #else |
| 22 | |
| 23 | typedef atomic64_t local_t; |
| 24 | |
| 25 | #define LOCAL_INIT(i) ATOMIC64_INIT(i) |
| 26 | #define local_read(v) atomic64_read(v) |
| 27 | #define local_set(v,i) atomic64_set(v,i) |
| 28 | |
| 29 | #define local_inc(v) atomic64_inc(v) |
| 30 | #define local_dec(v) atomic64_dec(v) |
| 31 | #define local_add(i, v) atomic64_add(i, v) |
| 32 | #define local_sub(i, v) atomic64_sub(i, v) |
| 33 | |
| 34 | #endif |
| 35 | |
| 36 | #define __local_inc(v) ((v)->counter++) |
| 37 | #define __local_dec(v) ((v)->counter--) |
| 38 | #define __local_add(i,v) ((v)->counter+=(i)) |
| 39 | #define __local_sub(i,v) ((v)->counter-=(i)) |
| 40 | |
| 41 | /* |
| 42 | * Use these for per-cpu local_t variables: on some archs they are |
| 43 | * much more efficient than these naive implementations. Note they take |
| 44 | * a variable, not an address. |
| 45 | */ |
| 46 | #define cpu_local_read(v) local_read(&__get_cpu_var(v)) |
| 47 | #define cpu_local_set(v, i) local_set(&__get_cpu_var(v), (i)) |
| 48 | |
| 49 | #define cpu_local_inc(v) local_inc(&__get_cpu_var(v)) |
| 50 | #define cpu_local_dec(v) local_dec(&__get_cpu_var(v)) |
| 51 | #define cpu_local_add(i, v) local_add((i), &__get_cpu_var(v)) |
| 52 | #define cpu_local_sub(i, v) local_sub((i), &__get_cpu_var(v)) |
| 53 | |
| 54 | #define __cpu_local_inc(v) __local_inc(&__get_cpu_var(v)) |
| 55 | #define __cpu_local_dec(v) __local_dec(&__get_cpu_var(v)) |
| 56 | #define __cpu_local_add(i, v) __local_add((i), &__get_cpu_var(v)) |
| 57 | #define __cpu_local_sub(i, v) __local_sub((i), &__get_cpu_var(v)) |
| 58 | |
| 59 | #endif /* _ASM_LOCAL_H */ |