|
1 |
| -/* |
2 |
| - * Copyright (c) 2015, Xilinx Inc. and Contributors. All rights reserved. |
3 |
| - * |
4 |
| - * SPDX-License-Identifier: BSD-3-Clause |
5 |
| - */ |
6 |
| - |
7 |
| -/* |
8 |
| - * @file gcc/atomic.h |
9 |
| - * @brief GCC specific atomic primitives for libmetal. |
10 |
| - */ |
11 |
| - |
12 |
| -#ifndef __METAL_GCC_ATOMIC__H__ |
13 |
| -#define __METAL_GCC_ATOMIC__H__ |
14 |
| - |
15 |
| -#ifdef __cplusplus |
16 |
| -extern "C" { |
17 |
| -#endif |
18 |
| - |
19 |
| -typedef int atomic_flag; |
20 |
| -typedef char atomic_char; |
21 |
| -typedef unsigned char atomic_uchar; |
22 |
| -typedef short atomic_short; |
23 |
| -typedef unsigned short atomic_ushort; |
24 |
| -typedef int atomic_int; |
25 |
| -typedef unsigned int atomic_uint; |
26 |
| -typedef long atomic_long; |
27 |
| -typedef unsigned long atomic_ulong; |
28 |
| -typedef long long atomic_llong; |
29 |
| -typedef unsigned long long atomic_ullong; |
30 |
| - |
31 |
| -#define ATOMIC_FLAG_INIT 0 |
32 |
| -#define ATOMIC_VAR_INIT(VAL) (VAL) |
33 |
| - |
34 |
| -typedef enum { |
35 |
| - memory_order_relaxed, |
36 |
| - memory_order_consume, |
37 |
| - memory_order_acquire, |
38 |
| - memory_order_release, |
39 |
| - memory_order_acq_rel, |
40 |
| - memory_order_seq_cst, |
41 |
| -} memory_order; |
42 |
| - |
43 |
| -#define atomic_flag_test_and_set(FLAG) \ |
44 |
| - __sync_lock_test_and_set((FLAG), 1) |
45 |
| -#define atomic_flag_test_and_set_explicit(FLAG, MO) \ |
46 |
| - atomic_flag_test_and_set(FLAG) |
47 |
| -#define atomic_flag_clear(FLAG) \ |
48 |
| - __sync_lock_release((FLAG)) |
49 |
| -#define atomic_flag_clear_explicit(FLAG, MO) \ |
50 |
| - atomic_flag_clear(FLAG) |
51 |
| -#define atomic_init(OBJ, VAL) \ |
52 |
| - do { *(OBJ) = (VAL); } while (0) |
53 |
| -#define atomic_is_lock_free(OBJ) \ |
54 |
| - (sizeof(*(OBJ)) <= sizeof(long)) |
55 |
| -#define atomic_store(OBJ, VAL) \ |
56 |
| - do { *(OBJ) = (VAL); __sync_synchronize(); } while (0) |
57 |
| -#define atomic_store_explicit(OBJ, VAL, MO) \ |
58 |
| - atomic_store((OBJ), (VAL)) |
59 |
| -#define atomic_load(OBJ) \ |
60 |
| - ({ __sync_synchronize(); *(OBJ); }) |
61 |
| -#define atomic_load_explicit(OBJ, MO) \ |
62 |
| - atomic_load(OBJ) |
63 |
| -#define atomic_exchange(OBJ, DES) \ |
64 |
| - ({ \ |
65 |
| - typeof(OBJ) obj = (OBJ); \ |
66 |
| - typeof(*obj) des = (DES); \ |
67 |
| - typeof(*obj) expval; \ |
68 |
| - typeof(*obj) oldval = atomic_load(obj); \ |
69 |
| - do { \ |
70 |
| - expval = oldval; \ |
71 |
| - oldval = __sync_val_compare_and_swap( \ |
72 |
| - obj, expval, des); \ |
73 |
| - } while (oldval != expval); \ |
74 |
| - oldval; \ |
75 |
| - }) |
76 |
| -#define atomic_exchange_explicit(OBJ, DES, MO) \ |
77 |
| - atomic_exchange((OBJ), (DES)) |
78 |
| -#define atomic_compare_exchange_strong(OBJ, EXP, DES) \ |
79 |
| - ({ \ |
80 |
| - typeof(OBJ) obj = (OBJ); \ |
81 |
| - typeof(EXP) exp = (EXP); \ |
82 |
| - typeof(*obj) expval = *exp; \ |
83 |
| - typeof(*obj) oldval = __sync_val_compare_and_swap( \ |
84 |
| - obj, expval, (DES)); \ |
85 |
| - *exp = oldval; \ |
86 |
| - oldval == expval; \ |
87 |
| - }) |
88 |
| -#define atomic_compare_exchange_strong_explicit(OBJ, EXP, DES, MO) \ |
89 |
| - atomic_compare_exchange_strong((OBJ), (EXP), (DES)) |
90 |
| -#define atomic_compare_exchange_weak(OBJ, EXP, DES) \ |
91 |
| - atomic_compare_exchange_strong((OBJ), (EXP), (DES)) |
92 |
| -#define atomic_compare_exchange_weak_explicit(OBJ, EXP, DES, MO) \ |
93 |
| - atomic_compare_exchange_weak((OBJ), (EXP), (DES)) |
94 |
| -#define atomic_fetch_add(OBJ, VAL) \ |
95 |
| - __sync_fetch_and_add((OBJ), (VAL)) |
96 |
| -#define atomic_fetch_add_explicit(OBJ, VAL, MO) \ |
97 |
| - atomic_fetch_add((OBJ), (VAL)) |
98 |
| -#define atomic_fetch_sub(OBJ, VAL) \ |
99 |
| - __sync_fetch_and_sub((OBJ), (VAL)) |
100 |
| -#define atomic_fetch_sub_explicit(OBJ, VAL, MO) \ |
101 |
| - atomic_fetch_sub((OBJ), (VAL)) |
102 |
| -#define atomic_fetch_or(OBJ, VAL) \ |
103 |
| - __sync_fetch_and_or((OBJ), (VAL)) |
104 |
| -#define atomic_fetch_or_explicit(OBJ, VAL, MO) \ |
105 |
| - atomic_fetch_or((OBJ), (VAL)) |
106 |
| -#define atomic_fetch_xor(OBJ, VAL) \ |
107 |
| - __sync_fetch_and_xor((OBJ), (VAL)) |
108 |
| -#define atomic_fetch_xor_explicit(OBJ, VAL, MO) \ |
109 |
| - atomic_fetch_xor((OBJ), (VAL)) |
110 |
| -#define atomic_fetch_and(OBJ, VAL) \ |
111 |
| - __sync_fetch_and_and((OBJ), (VAL)) |
112 |
| -#define atomic_fetch_and_explicit(OBJ, VAL, MO) \ |
113 |
| - atomic_fetch_and((OBJ), (VAL)) |
114 |
| -#define atomic_thread_fence(MO) \ |
115 |
| - __sync_synchronize() |
116 |
| -#define atomic_signal_fence(MO) \ |
117 |
| - __sync_synchronize() |
118 |
| - |
119 |
| -#ifdef __cplusplus |
120 |
| -} |
121 |
| -#endif |
122 |
| - |
123 |
| -#endif /* __METAL_GCC_ATOMIC__H__ */ |
| 1 | +/* |
| 2 | + * Copyright (c) 2015, Xilinx Inc. and Contributors. All rights reserved. |
| 3 | + * |
| 4 | + * SPDX-License-Identifier: BSD-3-Clause |
| 5 | + */ |
| 6 | + |
| 7 | +/* |
| 8 | + * @file gcc/atomic.h |
| 9 | + * @brief GCC specific atomic primitives for libmetal. |
| 10 | + */ |
| 11 | + |
| 12 | +#ifndef __METAL_GCC_ATOMIC__H__ |
| 13 | +#define __METAL_GCC_ATOMIC__H__ |
| 14 | + |
| 15 | +#ifdef __cplusplus |
| 16 | +extern "C" { |
| 17 | +#endif |
| 18 | + |
| 19 | +typedef int atomic_flag; |
| 20 | +typedef char atomic_char; |
| 21 | +typedef unsigned char atomic_uchar; |
| 22 | +typedef short atomic_short; |
| 23 | +typedef unsigned short atomic_ushort; |
| 24 | +typedef int atomic_int; |
| 25 | +typedef unsigned int atomic_uint; |
| 26 | +typedef atomic_uint atomic_uintptr_t; |
| 27 | +typedef long atomic_long; |
| 28 | +typedef unsigned long atomic_ulong; |
| 29 | +typedef long long atomic_llong; |
| 30 | +typedef unsigned long long atomic_ullong; |
| 31 | + |
| 32 | +#define ATOMIC_FLAG_INIT 0 |
| 33 | +#define ATOMIC_VAR_INIT(VAL) (VAL) |
| 34 | + |
| 35 | +typedef enum { |
| 36 | + memory_order_relaxed, |
| 37 | + memory_order_consume, |
| 38 | + memory_order_acquire, |
| 39 | + memory_order_release, |
| 40 | + memory_order_acq_rel, |
| 41 | + memory_order_seq_cst, |
| 42 | +} memory_order; |
| 43 | + |
| 44 | +#define atomic_flag_test_and_set(FLAG) \ |
| 45 | + __sync_lock_test_and_set((FLAG), 1) |
| 46 | +#define atomic_flag_test_and_set_explicit(FLAG, MO) \ |
| 47 | + atomic_flag_test_and_set(FLAG) |
| 48 | +#define atomic_flag_clear(FLAG) \ |
| 49 | + __sync_lock_release((FLAG)) |
| 50 | +#define atomic_flag_clear_explicit(FLAG, MO) \ |
| 51 | + atomic_flag_clear(FLAG) |
| 52 | +#define atomic_init(OBJ, VAL) \ |
| 53 | + do { *(OBJ) = (VAL); } while (0) |
| 54 | +#define atomic_is_lock_free(OBJ) \ |
| 55 | + (sizeof(*(OBJ)) <= sizeof(long)) |
| 56 | +#define atomic_store(OBJ, VAL) \ |
| 57 | + do { *(OBJ) = (VAL); __sync_synchronize(); } while (0) |
| 58 | +#define atomic_store_explicit(OBJ, VAL, MO) \ |
| 59 | + atomic_store((OBJ), (VAL)) |
| 60 | +#define atomic_load(OBJ) \ |
| 61 | + ({ __sync_synchronize(); *(OBJ); }) |
| 62 | +#define atomic_load_explicit(OBJ, MO) \ |
| 63 | + atomic_load(OBJ) |
| 64 | +#define atomic_exchange(OBJ, DES) \ |
| 65 | + ({ \ |
| 66 | + __typeof__(OBJ) obj = (OBJ); \ |
| 67 | + __typeof__(*obj) des = (DES); \ |
| 68 | + __typeof__(*obj) expval; \ |
| 69 | + __typeof__(*obj) oldval = atomic_load(obj); \ |
| 70 | + do { \ |
| 71 | + expval = oldval; \ |
| 72 | + oldval = __sync_val_compare_and_swap( \ |
| 73 | + obj, expval, des); \ |
| 74 | + } while (oldval != expval); \ |
| 75 | + oldval; \ |
| 76 | + }) |
| 77 | +#define atomic_exchange_explicit(OBJ, DES, MO) \ |
| 78 | + atomic_exchange((OBJ), (DES)) |
| 79 | +#define atomic_compare_exchange_strong(OBJ, EXP, DES) \ |
| 80 | + ({ \ |
| 81 | + __typeof__(OBJ) obj = (OBJ); \ |
| 82 | + __typeof__(EXP) exp = (EXP); \ |
| 83 | + __typeof__(*obj) expval = *exp; \ |
| 84 | + __typeof__(*obj) oldval = __sync_val_compare_and_swap( \ |
| 85 | + obj, expval, (DES)); \ |
| 86 | + *exp = oldval; \ |
| 87 | + oldval == expval; \ |
| 88 | + }) |
| 89 | +#define atomic_compare_exchange_strong_explicit(OBJ, EXP, DES, MO) \ |
| 90 | + atomic_compare_exchange_strong((OBJ), (EXP), (DES)) |
| 91 | +#define atomic_compare_exchange_weak(OBJ, EXP, DES) \ |
| 92 | + atomic_compare_exchange_strong((OBJ), (EXP), (DES)) |
| 93 | +#define atomic_compare_exchange_weak_explicit(OBJ, EXP, DES, MO) \ |
| 94 | + atomic_compare_exchange_weak((OBJ), (EXP), (DES)) |
| 95 | +#define atomic_fetch_add(OBJ, VAL) \ |
| 96 | + __sync_fetch_and_add((OBJ), (VAL)) |
| 97 | +#define atomic_fetch_add_explicit(OBJ, VAL, MO) \ |
| 98 | + atomic_fetch_add((OBJ), (VAL)) |
| 99 | +#define atomic_fetch_sub(OBJ, VAL) \ |
| 100 | + __sync_fetch_and_sub((OBJ), (VAL)) |
| 101 | +#define atomic_fetch_sub_explicit(OBJ, VAL, MO) \ |
| 102 | + atomic_fetch_sub((OBJ), (VAL)) |
| 103 | +#define atomic_fetch_or(OBJ, VAL) \ |
| 104 | + __sync_fetch_and_or((OBJ), (VAL)) |
| 105 | +#define atomic_fetch_or_explicit(OBJ, VAL, MO) \ |
| 106 | + atomic_fetch_or((OBJ), (VAL)) |
| 107 | +#define atomic_fetch_xor(OBJ, VAL) \ |
| 108 | + __sync_fetch_and_xor((OBJ), (VAL)) |
| 109 | +#define atomic_fetch_xor_explicit(OBJ, VAL, MO) \ |
| 110 | + atomic_fetch_xor((OBJ), (VAL)) |
| 111 | +#define atomic_fetch_and(OBJ, VAL) \ |
| 112 | + __sync_fetch_and_and((OBJ), (VAL)) |
| 113 | +#define atomic_fetch_and_explicit(OBJ, VAL, MO) \ |
| 114 | + atomic_fetch_and((OBJ), (VAL)) |
| 115 | +#define atomic_thread_fence(MO) \ |
| 116 | + __sync_synchronize() |
| 117 | +#define atomic_signal_fence(MO) \ |
| 118 | + __sync_synchronize() |
| 119 | + |
| 120 | +#ifdef __cplusplus |
| 121 | +} |
| 122 | +#endif |
| 123 | + |
| 124 | +#endif /* __METAL_GCC_ATOMIC__H__ */ |
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