11.1Smatt/*-
21.1Smatt * Copyright (c) 2013 The NetBSD Foundation, Inc.
31.1Smatt * All rights reserved.
41.1Smatt *
51.1Smatt * This code is derived from software contributed to The NetBSD Foundation
61.1Smatt * by Matt Thomas of 3am Software Foundry.
71.1Smatt *
81.1Smatt * Redistribution and use in source and binary forms, with or without
91.1Smatt * modification, are permitted provided that the following conditions
101.1Smatt * are met:
111.1Smatt * 1. Redistributions of source code must retain the above copyright
121.1Smatt *    notice, this list of conditions and the following disclaimer.
131.1Smatt * 2. Redistributions in binary form must reproduce the above copyright
141.1Smatt *    notice, this list of conditions and the following disclaimer in the
151.1Smatt *    documentation and/or other materials provided with the distribution.
161.1Smatt *
171.1Smatt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
181.1Smatt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
191.1Smatt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
201.1Smatt * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
211.1Smatt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
221.1Smatt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
231.1Smatt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
241.1Smatt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
251.1Smatt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
261.1Smatt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
271.1Smatt * POSSIBILITY OF SUCH DAMAGE.
281.1Smatt */
291.1Smatt
301.1Smatt#include <sys/cdefs.h>
311.2Smatt__RCSID("$NetBSD: atomic_simplelock.c,v 1.2 2013/08/16 01:47:41 matt Exp $");
321.1Smatt
331.1Smatt#include <sys/types.h>
341.2Smatt
351.2Smatt#if !defined(_ARM_ARCH_T2)
361.1Smatt/*
371.1Smatt * We need to use the inlines so redefine out of the way.
381.1Smatt */
391.1Smatt#define	__cpu_simple_lock	__arm_simple_lock
401.1Smatt#define	__cpu_simple_lock_try	__arm_simple_lock_try
411.1Smatt#include <arm/lock.h>
421.1Smatt/*
431.1Smatt * Now get rid of them.
441.1Smatt */
451.1Smatt#undef __cpu_simple_lock
461.1Smatt#undef __cpu_simple_lock_try
471.1Smatt
481.1Smatt/*
491.1Smatt * Since we overrode lock.h we have to provide these ourselves.
501.1Smatt */
511.2Smatt#ifdef __LIBPTHREAD_SOURCE__
521.1Smatt__dso_hidden void __cpu_simple_lock(__cpu_simple_lock_t *);
531.1Smatt__dso_hidden int __cpu_simple_lock_try(__cpu_simple_lock_t *);
541.2Smatt#else
551.2Smattvoid __cpu_simple_lock(__cpu_simple_lock_t *);
561.2Smattint __cpu_simple_lock_try(__cpu_simple_lock_t *);
571.2Smatt#endif
581.1Smatt
591.1Smattvoid
601.1Smatt__cpu_simple_lock(__cpu_simple_lock_t *alp)
611.1Smatt{
621.1Smatt
631.1Smatt	__arm_simple_lock(alp);
641.1Smatt}
651.1Smatt
661.1Smattint
671.1Smatt__cpu_simple_lock_try(__cpu_simple_lock_t *alp)
681.1Smatt{
691.1Smatt
701.1Smatt	return __arm_simple_lock_try(alp);
711.1Smatt}
721.1Smatt#endif
73