1*84d9c625SLionel Sambuc /*-
2*84d9c625SLionel Sambuc * Copyright (c) 2013 The NetBSD Foundation, Inc.
3*84d9c625SLionel Sambuc * All rights reserved.
4*84d9c625SLionel Sambuc *
5*84d9c625SLionel Sambuc * This code is derived from software contributed to The NetBSD Foundation
6*84d9c625SLionel Sambuc * by Matt Thomas of 3am Software Foundry.
7*84d9c625SLionel Sambuc *
8*84d9c625SLionel Sambuc * Redistribution and use in source and binary forms, with or without
9*84d9c625SLionel Sambuc * modification, are permitted provided that the following conditions
10*84d9c625SLionel Sambuc * are met:
11*84d9c625SLionel Sambuc * 1. Redistributions of source code must retain the above copyright
12*84d9c625SLionel Sambuc * notice, this list of conditions and the following disclaimer.
13*84d9c625SLionel Sambuc * 2. Redistributions in binary form must reproduce the above copyright
14*84d9c625SLionel Sambuc * notice, this list of conditions and the following disclaimer in the
15*84d9c625SLionel Sambuc * documentation and/or other materials provided with the distribution.
16*84d9c625SLionel Sambuc *
17*84d9c625SLionel Sambuc * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
18*84d9c625SLionel Sambuc * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
19*84d9c625SLionel Sambuc * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20*84d9c625SLionel Sambuc * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
21*84d9c625SLionel Sambuc * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22*84d9c625SLionel Sambuc * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23*84d9c625SLionel Sambuc * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24*84d9c625SLionel Sambuc * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25*84d9c625SLionel Sambuc * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26*84d9c625SLionel Sambuc * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27*84d9c625SLionel Sambuc * POSSIBILITY OF SUCH DAMAGE.
28*84d9c625SLionel Sambuc */
29*84d9c625SLionel Sambuc
30*84d9c625SLionel Sambuc #include <sys/cdefs.h>
31*84d9c625SLionel Sambuc __RCSID("$NetBSD: atomic_simplelock.c,v 1.2 2013/08/16 01:47:41 matt Exp $");
32*84d9c625SLionel Sambuc
33*84d9c625SLionel Sambuc #include <sys/types.h>
34*84d9c625SLionel Sambuc
35*84d9c625SLionel Sambuc #if !defined(_ARM_ARCH_T2)
36*84d9c625SLionel Sambuc /*
37*84d9c625SLionel Sambuc * We need to use the inlines so redefine out of the way.
38*84d9c625SLionel Sambuc */
39*84d9c625SLionel Sambuc #define __cpu_simple_lock __arm_simple_lock
40*84d9c625SLionel Sambuc #define __cpu_simple_lock_try __arm_simple_lock_try
41*84d9c625SLionel Sambuc #include <arm/lock.h>
42*84d9c625SLionel Sambuc /*
43*84d9c625SLionel Sambuc * Now get rid of them.
44*84d9c625SLionel Sambuc */
45*84d9c625SLionel Sambuc #undef __cpu_simple_lock
46*84d9c625SLionel Sambuc #undef __cpu_simple_lock_try
47*84d9c625SLionel Sambuc
48*84d9c625SLionel Sambuc /*
49*84d9c625SLionel Sambuc * Since we overrode lock.h we have to provide these ourselves.
50*84d9c625SLionel Sambuc */
51*84d9c625SLionel Sambuc #ifdef __LIBPTHREAD_SOURCE__
52*84d9c625SLionel Sambuc __dso_hidden void __cpu_simple_lock(__cpu_simple_lock_t *);
53*84d9c625SLionel Sambuc __dso_hidden int __cpu_simple_lock_try(__cpu_simple_lock_t *);
54*84d9c625SLionel Sambuc #else
55*84d9c625SLionel Sambuc void __cpu_simple_lock(__cpu_simple_lock_t *);
56*84d9c625SLionel Sambuc int __cpu_simple_lock_try(__cpu_simple_lock_t *);
57*84d9c625SLionel Sambuc #endif
58*84d9c625SLionel Sambuc
59*84d9c625SLionel Sambuc void
__cpu_simple_lock(__cpu_simple_lock_t * alp)60*84d9c625SLionel Sambuc __cpu_simple_lock(__cpu_simple_lock_t *alp)
61*84d9c625SLionel Sambuc {
62*84d9c625SLionel Sambuc
63*84d9c625SLionel Sambuc __arm_simple_lock(alp);
64*84d9c625SLionel Sambuc }
65*84d9c625SLionel Sambuc
66*84d9c625SLionel Sambuc int
__cpu_simple_lock_try(__cpu_simple_lock_t * alp)67*84d9c625SLionel Sambuc __cpu_simple_lock_try(__cpu_simple_lock_t *alp)
68*84d9c625SLionel Sambuc {
69*84d9c625SLionel Sambuc
70*84d9c625SLionel Sambuc return __arm_simple_lock_try(alp);
71*84d9c625SLionel Sambuc }
72*84d9c625SLionel Sambuc #endif
73