1 /* 2 * Copyright 2014-2015 iXsystems, Inc. 3 * All rights reserved 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted providing that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 22 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 23 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 24 * POSSIBILITY OF SUCH DAMAGE. 25 * 26 */ 27 28 #include <sys/types.h> 29 #include <machine/atomic.h> 30 31 typedef int OSSpinLock; 32 33 #define OSAtomicIncrement32Barrier(v) atomic_fetchadd_int((volatile int *)v, 1) 34 #define OSAtomicDecrement32Barrier(v) atomic_fetchadd_int((volatile int *)v, -1) 35 #define OSAtomicTestAndSetBarrier(i, v) atomic_testandset_int((volatile int *)v, i) 36 #define OSAtomicAdd64(i, v) atomic_add_64((volatile int *)v, i) 37 #define OSAtomicIncrement32(v) atomic_fetchadd_32((volatile int *)v, 1) 38 #define OSAtomicDecrement32(v) atomic_fetchadd_32((volatile int *)v, -1) 39 #define OSAtomicCompareAndSwapLongBarrier(o, i, v) atomic_cmpset_long(v, o, i) 40 #define OSAtomicCompareAndSwap32Barrier(o, i, v) atomic_cmpset_32(v, o, i) 41 #define OSSpinLockLock(l) while (atomic_testandset_int((volatile int *)l, 1) == 1) 42 #define OSSpinLockUnlock(l) atomic_clear_int((volatile int *)l, 1) 43