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1da177e4 LT |
1 | #ifndef _ASM_IA64_LOCAL_H |
2 | #define _ASM_IA64_LOCAL_H | |
3 | ||
4 | /* | |
5 | * Copyright (C) 2003 Hewlett-Packard Co | |
6 | * David Mosberger-Tang <davidm@hpl.hp.com> | |
7 | */ | |
8 | ||
9 | #include <linux/percpu.h> | |
10 | ||
11 | typedef struct { | |
12 | atomic64_t val; | |
13 | } local_t; | |
14 | ||
15 | #define LOCAL_INIT(i) ((local_t) { { (i) } }) | |
16 | #define local_read(l) atomic64_read(&(l)->val) | |
17 | #define local_set(l, i) atomic64_set(&(l)->val, i) | |
18 | #define local_inc(l) atomic64_inc(&(l)->val) | |
19 | #define local_dec(l) atomic64_dec(&(l)->val) | |
f64fa677 CL |
20 | #define local_add(i, l) atomic64_add((i), &(l)->val) |
21 | #define local_sub(i, l) atomic64_sub((i), &(l)->val) | |
1da177e4 LT |
22 | |
23 | /* Non-atomic variants, i.e., preemption disabled and won't be touched in interrupt, etc. */ | |
24 | ||
25 | #define __local_inc(l) (++(l)->val.counter) | |
26 | #define __local_dec(l) (--(l)->val.counter) | |
27 | #define __local_add(i,l) ((l)->val.counter += (i)) | |
28 | #define __local_sub(i,l) ((l)->val.counter -= (i)) | |
29 | ||
30 | /* | |
31 | * Use these for per-cpu local_t variables. Note they take a variable (eg. mystruct.foo), | |
32 | * not an address. | |
33 | */ | |
34 | #define cpu_local_read(v) local_read(&__ia64_per_cpu_var(v)) | |
35 | #define cpu_local_set(v, i) local_set(&__ia64_per_cpu_var(v), (i)) | |
36 | #define cpu_local_inc(v) local_inc(&__ia64_per_cpu_var(v)) | |
37 | #define cpu_local_dec(v) local_dec(&__ia64_per_cpu_var(v)) | |
38 | #define cpu_local_add(i, v) local_add((i), &__ia64_per_cpu_var(v)) | |
39 | #define cpu_local_sub(i, v) local_sub((i), &__ia64_per_cpu_var(v)) | |
40 | ||
41 | /* | |
42 | * Non-atomic increments, i.e., preemption disabled and won't be touched in interrupt, | |
43 | * etc. | |
44 | */ | |
45 | #define __cpu_local_inc(v) __local_inc(&__ia64_per_cpu_var(v)) | |
46 | #define __cpu_local_dec(v) __local_dec(&__ia64_per_cpu_var(v)) | |
47 | #define __cpu_local_add(i, v) __local_add((i), &__ia64_per_cpu_var(v)) | |
48 | #define __cpu_local_sub(i, v) __local_sub((i), &__ia64_per_cpu_var(v)) | |
49 | ||
50 | #endif /* _ASM_IA64_LOCAL_H */ |