diff options
author | Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> | 2007-05-08 03:34:46 -0400 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-08 14:15:20 -0400 |
commit | 4431f46f5fe0e3b740dfaf09ba34f0b14688185e (patch) | |
tree | d60c7604c82a02da61a8638891b21606c635146b /include/asm-ia64/local.h | |
parent | a075227948636e10aa2cc2d8725fbbab27681d4a (diff) |
local_t: ia64 extension
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-ia64/local.h')
-rw-r--r-- | include/asm-ia64/local.h | 51 |
1 files changed, 1 insertions, 50 deletions
diff --git a/include/asm-ia64/local.h b/include/asm-ia64/local.h index dc519092ef4d..c11c530f74d0 100644 --- a/include/asm-ia64/local.h +++ b/include/asm-ia64/local.h | |||
@@ -1,50 +1 @@ | |||
1 | #ifndef _ASM_IA64_LOCAL_H | #include <asm-generic/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) | ||
20 | #define local_add(i, l) atomic64_add((i), &(l)->val) | ||
21 | #define local_sub(i, l) atomic64_sub((i), &(l)->val) | ||
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 */ | ||