[urcu.git] / include / urcu / uatomic / loongarch.h

#ifndef _URCU_UATOMIC_ARCH_LOONGARCH_H
#define _URCU_UATOMIC_ARCH_LOONGARCH_H

/*
 * Atomic exchange operations for the LoongArch architecture. Let GCC do it.
 *
 * Copyright (c) 2021 Wang Jing <wangjing@loongson.cn>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 */

#include <urcu/compiler.h>
#include <urcu/system.h>

#ifdef __cplusplus
extern "C" {
#endif

/*
 * LoongArch implements byte and short atomics with LL/SC instructions,
 * which retry if the cache line is modified concurrently between LL and
 * SC.
 */
#define UATOMIC_HAS_ATOMIC_BYTE
#define UATOMIC_HAS_ATOMIC_SHORT

#ifdef __cplusplus
}
#endif

#include <urcu/uatomic/generic.h>

#endif /* _URCU_UATOMIC_ARCH_LOONGARCH_H */
Commit	Line	Data
dc46a9c3 WJ	1	#ifndef _URCU_UATOMIC_ARCH_LOONGARCH_H
	2	#define _URCU_UATOMIC_ARCH_LOONGARCH_H
	3
	4	/*
	5	* Atomic exchange operations for the LoongArch architecture. Let GCC do it.
	6	*
	7	* Copyright (c) 2021 Wang Jing <wangjing@loongson.cn>
	8	*
	9	* Permission is hereby granted, free of charge, to any person obtaining a copy
	10	* of this software and associated documentation files (the "Software"), to
	11	* deal in the Software without restriction, including without limitation the
	12	* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
	13	* sell copies of the Software, and to permit persons to whom the Software is
	14	* furnished to do so, subject to the following conditions:
	15	*
	16	* The above copyright notice and this permission notice shall be included in
	17	* all copies or substantial portions of the Software.
	18	*
	19	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	20	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	21	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	22	* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	23	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
	24	* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
	25	* IN THE SOFTWARE.
	26	*/
	27
	28	#include <urcu/compiler.h>
	29	#include <urcu/system.h>
	30
	31	#ifdef __cplusplus
	32	extern "C" {
	33	#endif
	34
776b7d45 MD	35	/*
	36	* LoongArch implements byte and short atomics with LL/SC instructions,
	37	* which retry if the cache line is modified concurrently between LL and
	38	* SC.
	39	*/
dc46a9c3 WJ	40	#define UATOMIC_HAS_ATOMIC_BYTE
	41	#define UATOMIC_HAS_ATOMIC_SHORT
	42
	43	#ifdef __cplusplus
	44	}
	45	#endif
	46
	47	#include <urcu/uatomic/generic.h>
	48
	49	#endif /* _URCU_UATOMIC_ARCH_LOONGARCH_H */