include/urcu/uatomic/loongarch.h

   1 // SPDX-FileCopyrightText: 2021 Wang Jing <wangjing@loongson.cn>
   2 //
   3 // SPDX-License-Identifier: MIT
   4
   5 #ifndef _URCU_UATOMIC_ARCH_LOONGARCH_H
   6 #define _URCU_UATOMIC_ARCH_LOONGARCH_H
   7
   8 /*
   9  * Atomic exchange operations for the LoongArch architecture. Let GCC do it.
  10  */
  11
  12 #include <urcu/compiler.h>
  13 #include <urcu/system.h>
  14
  15 #ifdef __cplusplus
  16 extern "C" {
  17 #endif
  18
  19 /*
  20  * LoongArch implements byte and short atomics with LL/SC instructions,
  21  * which retry if the cache line is modified concurrently between LL and
  22  * SC.
  23  */
  24 #define UATOMIC_HAS_ATOMIC_BYTE
  25 #define UATOMIC_HAS_ATOMIC_SHORT
  26
  27 #ifdef __cplusplus
  28 }
  29 #endif
  30
  31 #include <urcu/uatomic/generic.h>
  32
  33 #endif /* _URCU_UATOMIC_ARCH_LOONGARCH_H */