1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 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 * $FreeBSD$ 28 */ 29 30 31 #ifndef _SYS_ATOMIC64E_H_ 32 #define _SYS_ATOMIC64E_H_ 33 34 #ifndef _MACHINE_ATOMIC_H_ 35 #error "This should not be included directly. Include <machine/atomic.h>" 36 #endif 37 38 #ifdef _KERNEL 39 #define HAS_EMULATED_ATOMIC64 40 41 /* Emulated versions of 64-bit atomic operations. */ 42 43 void atomic_add_64(volatile u_int64_t *, u_int64_t); 44 #define atomic_add_acq_64 atomic_add_64 45 #define atomic_add_rel_64 atomic_add_64 46 47 int atomic_cmpset_64(volatile u_int64_t *, u_int64_t, u_int64_t); 48 #define atomic_cmpset_acq_64 atomic_cmpset_64 49 #define atomic_cmpset_rel_64 atomic_cmpset_64 50 51 void atomic_clear_64(volatile u_int64_t *, u_int64_t); 52 #define atomic_clear_acq_64 atomic_clear_64 53 #define atomic_clear_rel_64 atomic_clear_64 54 55 int atomic_fcmpset_64(volatile u_int64_t *, u_int64_t *, u_int64_t); 56 #define atomic_fcmpset_acq_64 atomic_fcmpset_64 57 #define atomic_fcmpset_rel_64 atomic_fcmpset_64 58 59 u_int64_t atomic_fetchadd_64(volatile u_int64_t *, u_int64_t); 60 61 u_int64_t atomic_load_64(volatile u_int64_t *); 62 #define atomic_load_acq_64 atomic_load_64 63 64 void atomic_readandclear_64(volatile u_int64_t *); 65 66 void atomic_set_64(volatile u_int64_t *, u_int64_t); 67 #define atomic_set_acq_64 atomic_set_64 68 #define atomic_set_rel_64 atomic_set_64 69 70 void atomic_subtract_64(volatile u_int64_t *, u_int64_t); 71 #define atomic_subtract_acq_64 atomic_subtract_64 72 #define atomic_subtract_rel_64 atomic_subtract_64 73 74 void atomic_store_64(volatile u_int64_t *, u_int64_t); 75 #define atomic_store_rel_64 atomic_store_64 76 77 u_int64_t atomic_swap_64(volatile u_int64_t *, u_int64_t); 78 79 #endif /* _KERNEL */ 80 #endif /* _SYS_ATOMIC64E_H_ */ 81