|
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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