freebsd-dev/sys/sys/_atomic64e.h
2020-09-01 22:12:58 +00:00

80 lines
2.9 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2019 Justin Hibbits
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _SYS_ATOMIC64E_H_
#define _SYS_ATOMIC64E_H_
#ifndef _MACHINE_ATOMIC_H_
#error "This should not be included directly. Include <machine/atomic.h>"
#endif
#ifdef _KERNEL
#define HAS_EMULATED_ATOMIC64
/* Emulated versions of 64-bit atomic operations. */
void atomic_add_64(volatile u_int64_t *, u_int64_t);
#define atomic_add_acq_64 atomic_add_64
#define atomic_add_rel_64 atomic_add_64
int atomic_cmpset_64(volatile u_int64_t *, u_int64_t, u_int64_t);
#define atomic_cmpset_acq_64 atomic_cmpset_64
#define atomic_cmpset_rel_64 atomic_cmpset_64
void atomic_clear_64(volatile u_int64_t *, u_int64_t);
#define atomic_clear_acq_64 atomic_clear_64
#define atomic_clear_rel_64 atomic_clear_64
int atomic_fcmpset_64(volatile u_int64_t *, u_int64_t *, u_int64_t);
#define atomic_fcmpset_acq_64 atomic_fcmpset_64
#define atomic_fcmpset_rel_64 atomic_fcmpset_64
u_int64_t atomic_fetchadd_64(volatile u_int64_t *, u_int64_t);
u_int64_t atomic_load_64(volatile u_int64_t *);
#define atomic_load_acq_64 atomic_load_64
void atomic_readandclear_64(volatile u_int64_t *);
void atomic_set_64(volatile u_int64_t *, u_int64_t);
#define atomic_set_acq_64 atomic_set_64
#define atomic_set_rel_64 atomic_set_64
void atomic_subtract_64(volatile u_int64_t *, u_int64_t);
#define atomic_subtract_acq_64 atomic_subtract_64
#define atomic_subtract_rel_64 atomic_subtract_64
void atomic_store_64(volatile u_int64_t *, u_int64_t);
#define atomic_store_rel_64 atomic_store_64
u_int64_t atomic_swap_64(volatile u_int64_t *, u_int64_t);
#endif /* _KERNEL */
#endif /* _SYS_ATOMIC64E_H_ */