Palacios Public Git Repository

To checkout Palacios execute

  git clone http://v3vee.org/palacios/palacios.web/palacios.git
This will give you the master branch. You probably want the devel branch or one of the release branches. To switch to the devel branch, simply execute
  cd palacios
  git checkout --track -b devel origin/devel
The other branches are similar.


Merge branch 'devel'
[palacios.git] / kitten / include / arch-generic / atomic.h
1 #ifndef _ASM_GENERIC_ATOMIC_H
2 #define _ASM_GENERIC_ATOMIC_H
3 /*
4  * Copyright (C) 2005 Silicon Graphics, Inc.
5  *      Christoph Lameter <clameter@sgi.com>
6  *
7  * Allows to provide arch independent atomic definitions without the need to
8  * edit all arch specific atomic.h files.
9  */
10
11 #include <arch/types.h>
12
13 /*
14  * Suppport for atomic_long_t
15  *
16  * Casts for parameters are avoided for existing atomic functions in order to
17  * avoid issues with cast-as-lval under gcc 4.x and other limitations that the
18  * macros of a platform may have.
19  */
20
21 #if BITS_PER_LONG == 64
22
23 typedef atomic64_t atomic_long_t;
24
25 #define ATOMIC_LONG_INIT(i)     ATOMIC64_INIT(i)
26
27 static inline long atomic_long_read(atomic_long_t *l)
28 {
29         atomic64_t *v = (atomic64_t *)l;
30
31         return (long)atomic64_read(v);
32 }
33
34 static inline void atomic_long_set(atomic_long_t *l, long i)
35 {
36         atomic64_t *v = (atomic64_t *)l;
37
38         atomic64_set(v, i);
39 }
40
41 static inline void atomic_long_inc(atomic_long_t *l)
42 {
43         atomic64_t *v = (atomic64_t *)l;
44
45         atomic64_inc(v);
46 }
47
48 static inline void atomic_long_dec(atomic_long_t *l)
49 {
50         atomic64_t *v = (atomic64_t *)l;
51
52         atomic64_dec(v);
53 }
54
55 static inline void atomic_long_add(long i, atomic_long_t *l)
56 {
57         atomic64_t *v = (atomic64_t *)l;
58
59         atomic64_add(i, v);
60 }
61
62 static inline void atomic_long_sub(long i, atomic_long_t *l)
63 {
64         atomic64_t *v = (atomic64_t *)l;
65
66         atomic64_sub(i, v);
67 }
68
69 #else
70
71 typedef atomic_t atomic_long_t;
72
73 #define ATOMIC_LONG_INIT(i)     ATOMIC_INIT(i)
74 static inline long atomic_long_read(atomic_long_t *l)
75 {
76         atomic_t *v = (atomic_t *)l;
77
78         return (long)atomic_read(v);
79 }
80
81 static inline void atomic_long_set(atomic_long_t *l, long i)
82 {
83         atomic_t *v = (atomic_t *)l;
84
85         atomic_set(v, i);
86 }
87
88 static inline void atomic_long_inc(atomic_long_t *l)
89 {
90         atomic_t *v = (atomic_t *)l;
91
92         atomic_inc(v);
93 }
94
95 static inline void atomic_long_dec(atomic_long_t *l)
96 {
97         atomic_t *v = (atomic_t *)l;
98
99         atomic_dec(v);
100 }
101
102 static inline void atomic_long_add(long i, atomic_long_t *l)
103 {
104         atomic_t *v = (atomic_t *)l;
105
106         atomic_add(i, v);
107 }
108
109 static inline void atomic_long_sub(long i, atomic_long_t *l)
110 {
111         atomic_t *v = (atomic_t *)l;
112
113         atomic_sub(i, v);
114 }
115
116 #endif
117 #endif