1/*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2019 Justin Hibbits 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28#ifndef _SYS_ATOMIC64E_H_ 29#define _SYS_ATOMIC64E_H_ 30 31#ifndef _MACHINE_ATOMIC_H_ 32#error "This should not be included directly. Include <machine/atomic.h>" 33#endif 34 35#ifdef _KERNEL 36#define HAS_EMULATED_ATOMIC64 37 38/* Emulated versions of 64-bit atomic operations. */ 39 40void atomic_add_64(volatile u_int64_t *, u_int64_t); 41#define atomic_add_acq_64 atomic_add_64 42#define atomic_add_rel_64 atomic_add_64 43 44int atomic_cmpset_64(volatile u_int64_t *, u_int64_t, u_int64_t); 45#define atomic_cmpset_acq_64 atomic_cmpset_64 46#define atomic_cmpset_rel_64 atomic_cmpset_64 47 48void atomic_clear_64(volatile u_int64_t *, u_int64_t); 49#define atomic_clear_acq_64 atomic_clear_64 50#define atomic_clear_rel_64 atomic_clear_64 51 52int atomic_fcmpset_64(volatile u_int64_t *, u_int64_t *, u_int64_t); 53#define atomic_fcmpset_acq_64 atomic_fcmpset_64 54#define atomic_fcmpset_rel_64 atomic_fcmpset_64 55 56u_int64_t atomic_fetchadd_64(volatile u_int64_t *, u_int64_t); 57 58u_int64_t atomic_load_64(volatile u_int64_t *); 59#define atomic_load_acq_64 atomic_load_64 60 61void atomic_readandclear_64(volatile u_int64_t *); 62 63void atomic_set_64(volatile u_int64_t *, u_int64_t); 64#define atomic_set_acq_64 atomic_set_64 65#define atomic_set_rel_64 atomic_set_64 66 67void atomic_subtract_64(volatile u_int64_t *, u_int64_t); 68#define atomic_subtract_acq_64 atomic_subtract_64 69#define atomic_subtract_rel_64 atomic_subtract_64 70 71void atomic_store_64(volatile u_int64_t *, u_int64_t); 72#define atomic_store_rel_64 atomic_store_64 73 74u_int64_t atomic_swap_64(volatile u_int64_t *, u_int64_t); 75 76#endif /* _KERNEL */ 77#endif /* _SYS_ATOMIC64E_H_ */ 78