11.8Sriastrad/*	$NetBSD: atomic_cas.S,v 1.8 2022/04/06 22:47:57 riastradh Exp $	*/
21.2Sad
31.2Sad/*-
41.4Sad * Copyright (c) 2007, 2008 The NetBSD Foundation, Inc.
51.2Sad * All rights reserved.
61.2Sad *
71.2Sad * This code is derived from software contributed to The NetBSD Foundation
81.2Sad * by Jason R. Thorpe.
91.2Sad *
101.2Sad * Redistribution and use in source and binary forms, with or without
111.2Sad * modification, are permitted provided that the following conditions
121.2Sad * are met:
131.2Sad * 1. Redistributions of source code must retain the above copyright
141.2Sad *    notice, this list of conditions and the following disclaimer.
151.2Sad * 2. Redistributions in binary form must reproduce the above copyright
161.2Sad *    notice, this list of conditions and the following disclaimer in the
171.2Sad *    documentation and/or other materials provided with the distribution.
181.8Sriastrad *
191.2Sad * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
201.2Sad * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
211.2Sad * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
221.2Sad * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
231.2Sad * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
241.2Sad * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
251.2Sad * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
261.2Sad * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
271.2Sad * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
281.2Sad * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
291.2Sad * POSSIBILITY OF SUCH DAMAGE.
301.2Sad */
311.2Sad
321.2Sad#include "atomic_op_asm.h"
331.2Sad
341.2Sad	.text
351.2Sad
361.6SchsENTRY(_atomic_cas_32)
371.2Sad	cas	[%o0], %o1, %o2
381.2Sad	retl
391.2Sad	 mov	%o2, %o0
401.4Sad
411.2SadATOMIC_OP_ALIAS(atomic_cas_32,_atomic_cas_32)
421.2SadATOMIC_OP_ALIAS(atomic_cas_uint,_atomic_cas_32)
431.2SadSTRONG_ALIAS(_atomic_cas_uint,_atomic_cas_32)
441.2Sad
451.4SadATOMIC_OP_ALIAS(atomic_cas_32_ni,_atomic_cas_32)
461.4SadSTRONG_ALIAS(_atomic_cas_32_ni,_atomic_cas_32)
471.4SadATOMIC_OP_ALIAS(atomic_cas_uint_ni,_atomic_cas_32)
481.4SadSTRONG_ALIAS(_atomic_cas_uint_ni,_atomic_cas_32)
491.4Sad
501.6SchsENTRY(_atomic_cas_64)
511.7Snakayama#ifndef __arch64__
521.7Snakayama	COMBINE(%o1, %o2, %o1)
531.7Snakayama	COMBINE(%o3, %o4, %o2)
541.7Snakayama#endif
551.2Sad	casx	[%o0], %o1, %o2
561.7Snakayama#ifdef __arch64__
571.2Sad	retl
581.2Sad	 mov	%o2, %o0
591.7Snakayama#else
601.7Snakayama	SPLIT_RETL(%o2, %o0, %o1)
611.7Snakayama#endif
621.4Sad
631.2SadATOMIC_OP_ALIAS(atomic_cas_64,_atomic_cas_64)
641.3SmrgATOMIC_OP_ALIAS_SIZE(atomic_cas_ulong,_atomic_cas)
651.3SmrgSTRONG_ALIAS_SIZE(_atomic_cas_ulong,_atomic_cas)
661.3SmrgATOMIC_OP_ALIAS_SIZE(atomic_cas_ptr,_atomic_cas)
671.3SmrgSTRONG_ALIAS_SIZE(_atomic_cas_ptr,_atomic_cas)
681.4Sad
691.4SadATOMIC_OP_ALIAS(atomic_cas_64_ni,_atomic_cas_64)
701.4SadSTRONG_ALIAS_SIZE(_atomic_cas_64_ni,_atomic_cas)
711.4SadATOMIC_OP_ALIAS_SIZE(atomic_cas_ulong_ni,_atomic_cas)
721.4SadSTRONG_ALIAS_SIZE(_atomic_cas_ulong_ni,_atomic_cas)
731.4SadATOMIC_OP_ALIAS_SIZE(atomic_cas_ptr_ni,_atomic_cas)
741.4SadSTRONG_ALIAS_SIZE(_atomic_cas_ptr_ni,_atomic_cas)
751.7Snakayama
761.7Snakayama#if !defined(__arch64__) && defined(CRT_ALIAS)
771.7SnakayamaCRT_ALIAS(__sync_val_compare_and_swap_8,_atomic_cas_64)
781.7Snakayama#endif
79