projects / urcu.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c64a40d MJ |
1 | // SPDX-FileCopyrightText: 2023 Olivier Dion <odion@efficios.com> |
| 2 | // | |
| 3 | // SPDX-License-Identifier: LGPL-2.1-or-later | |
| 4 | ||
| d1854484 OD |
5 | /* |
| 6 | * urcu/uatomic/builtins-generic.h | |
| d1854484 OD |
7 | */ |
| 8 | ||
| 9 | #ifndef _URCU_UATOMIC_BUILTINS_GENERIC_H | |
| 10 | #define _URCU_UATOMIC_BUILTINS_GENERIC_H | |
| 11 | ||
| 12 | #include <urcu/compiler.h> | |
| 13 | #include <urcu/system.h> | |
| 14 | ||
| 15 | #define uatomic_store(addr, v, mo) \ | |
| 16 | do { \ | |
| 17 | __atomic_store_n(cmm_cast_volatile(addr), v, \ | |
| 18 | cmm_to_c11(mo)); \ | |
| 19 | cmm_seq_cst_fence_after_atomic(mo); \ | |
| 20 | } while (0) | |
| 21 | ||
| 22 | #define uatomic_set(addr, v) \ | |
| 23 | do { \ | |
| 24 | uatomic_store(addr, v, CMM_RELAXED); \ | |
| 25 | } while (0) | |
| 26 | ||
| 27 | #define uatomic_load(addr, mo) \ | |
| 28 | __extension__ \ | |
| 29 | ({ \ | |
| 30 | __typeof__(*(addr)) _value = \ | |
| 31 | __atomic_load_n(cmm_cast_volatile(addr), \ | |
| 32 | cmm_to_c11(mo)); \ | |
| 33 | cmm_seq_cst_fence_after_atomic(mo); \ | |
| 34 | \ | |
| 35 | _value; \ | |
| 36 | }) | |
| 37 | ||
| 38 | #define uatomic_read(addr) \ | |
| 39 | uatomic_load(addr, CMM_RELAXED) | |
| 40 | ||
| 41 | #define uatomic_cmpxchg_mo(addr, old, new, mos, mof) \ | |
| 42 | __extension__ \ | |
| 43 | ({ \ | |
| 44 | __typeof__(*(addr)) _old = (__typeof__(*(addr)))old; \ | |
| 45 | \ | |
| 46 | if (__atomic_compare_exchange_n(cmm_cast_volatile(addr), \ | |
| 47 | &_old, new, 0, \ | |
| 48 | cmm_to_c11(mos), \ | |
| 49 | cmm_to_c11(mof))) { \ | |
| 50 | cmm_seq_cst_fence_after_atomic(mos); \ | |
| 51 | } else { \ | |
| 52 | cmm_seq_cst_fence_after_atomic(mof); \ | |
| 53 | } \ | |
| 54 | _old; \ | |
| 55 | }) | |
| 56 | ||
| 57 | #define uatomic_cmpxchg(addr, old, new) \ | |
| 58 | uatomic_cmpxchg_mo(addr, old, new, CMM_SEQ_CST_FENCE, CMM_RELAXED) | |
| 59 | ||
| 60 | #define uatomic_xchg_mo(addr, v, mo) \ | |
| 61 | __extension__ \ | |
| 62 | ({ \ | |
| 63 | __typeof__((*addr)) _old = \ | |
| 64 | __atomic_exchange_n(cmm_cast_volatile(addr), v, \ | |
| 65 | cmm_to_c11(mo)); \ | |
| 66 | cmm_seq_cst_fence_after_atomic(mo); \ | |
| 67 | _old; \ | |
| 68 | }) | |
| 69 | ||
| 70 | #define uatomic_xchg(addr, v) \ | |
| 71 | uatomic_xchg_mo(addr, v, CMM_SEQ_CST_FENCE) | |
| 72 | ||
| 73 | #define uatomic_add_return_mo(addr, v, mo) \ | |
| 74 | __extension__ \ | |
| 75 | ({ \ | |
| 76 | __typeof__(*(addr)) _old = \ | |
| 77 | __atomic_add_fetch(cmm_cast_volatile(addr), v, \ | |
| 78 | cmm_to_c11(mo)); \ | |
| 79 | cmm_seq_cst_fence_after_atomic(mo); \ | |
| 80 | _old; \ | |
| 81 | }) | |
| 82 | ||
| 83 | #define uatomic_add_return(addr, v) \ | |
| 84 | uatomic_add_return_mo(addr, v, CMM_SEQ_CST_FENCE) | |
| 85 | ||
| 86 | #define uatomic_sub_return_mo(addr, v, mo) \ | |
| 87 | __extension__ \ | |
| 88 | ({ \ | |
| 89 | __typeof__(*(addr)) _old = \ | |
| 90 | __atomic_sub_fetch(cmm_cast_volatile(addr), v, \ | |
| 91 | cmm_to_c11(mo)); \ | |
| 92 | cmm_seq_cst_fence_after_atomic(mo); \ | |
| 93 | _old; \ | |
| 94 | }) | |
| 95 | ||
| 96 | #define uatomic_sub_return(addr, v) \ | |
| 97 | uatomic_sub_return_mo(addr, v, CMM_SEQ_CST_FENCE) | |
| 98 | ||
| 99 | #define uatomic_and_mo(addr, mask, mo) \ | |
| 100 | do { \ | |
| 101 | (void) __atomic_and_fetch(cmm_cast_volatile(addr), mask, \ | |
| 102 | cmm_to_c11(mo)); \ | |
| 103 | cmm_seq_cst_fence_after_atomic(mo); \ | |
| 104 | } while (0) | |
| 105 | ||
| 106 | #define uatomic_and(addr, mask) \ | |
| 107 | uatomic_and_mo(addr, mask, CMM_SEQ_CST) | |
| 108 | ||
| 109 | #define uatomic_or_mo(addr, mask, mo) \ | |
| 110 | do { \ | |
| 111 | (void) __atomic_or_fetch(cmm_cast_volatile(addr), mask, \ | |
| 112 | cmm_to_c11(mo)); \ | |
| 113 | cmm_seq_cst_fence_after_atomic(mo); \ | |
| 114 | } while (0) | |
| 115 | ||
| 116 | ||
| 117 | #define uatomic_or(addr, mask) \ | |
| 118 | uatomic_or_mo(addr, mask, CMM_RELAXED) | |
| 119 | ||
| 120 | #define uatomic_add_mo(addr, v, mo) \ | |
| 121 | (void) uatomic_add_return_mo(addr, v, mo) | |
| 122 | ||
| 123 | #define uatomic_add(addr, v) \ | |
| 124 | uatomic_add_mo(addr, v, CMM_RELAXED) | |
| 125 | ||
| 126 | #define uatomic_sub_mo(addr, v, mo) \ | |
| 127 | (void) uatomic_sub_return_mo(addr, v, mo) | |
| 128 | ||
| 129 | #define uatomic_sub(addr, v) \ | |
| 130 | uatomic_sub_mo(addr, v, CMM_RELAXED) | |
| 131 | ||
| 132 | #define uatomic_inc_mo(addr, mo) \ | |
| 133 | uatomic_add_mo(addr, 1, mo) | |
| 134 | ||
| 135 | #define uatomic_inc(addr) \ | |
| 136 | uatomic_inc_mo(addr, CMM_RELAXED) | |
| 137 | ||
| 138 | #define uatomic_dec_mo(addr, mo) \ | |
| 139 | uatomic_sub_mo(addr, 1, mo) | |
| 140 | ||
| 141 | #define uatomic_dec(addr) \ | |
| 142 | uatomic_dec_mo(addr, CMM_RELAXED) | |
| 143 | ||
| 144 | #define cmm_smp_mb__before_uatomic_and() cmm_smp_mb() | |
| 145 | #define cmm_smp_mb__after_uatomic_and() cmm_smp_mb() | |
| 146 | ||
| 147 | #define cmm_smp_mb__before_uatomic_or() cmm_smp_mb() | |
| 148 | #define cmm_smp_mb__after_uatomic_or() cmm_smp_mb() | |
| 149 | ||
| 150 | #define cmm_smp_mb__before_uatomic_add() cmm_smp_mb() | |
| 151 | #define cmm_smp_mb__after_uatomic_add() cmm_smp_mb() | |
| 152 | ||
| 153 | #define cmm_smp_mb__before_uatomic_sub() cmm_smp_mb() | |
| 154 | #define cmm_smp_mb__after_uatomic_sub() cmm_smp_mb() | |
| 155 | ||
| 156 | #define cmm_smp_mb__before_uatomic_inc() cmm_smp_mb() | |
| 157 | #define cmm_smp_mb__after_uatomic_inc() cmm_smp_mb() | |
| 158 | ||
| 159 | #define cmm_smp_mb__before_uatomic_dec() cmm_smp_mb() | |
| 160 | #define cmm_smp_mb__after_uatomic_dec() cmm_smp_mb() | |
| 161 | ||
| 162 | #endif /* _URCU_UATOMIC_BUILTINS_X86_H */ |