1/*	$NetBSD: atomic_add_64.S,v 1.2 2015/03/27 06:42:37 matt Exp $	*/
2
3/*-
4 * Copyright (c) 2014 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Matt Thomas of 3am Software Foundry.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include "atomic_op_asm.h"
33
34ENTRY_NP(_atomic_inc_64)
35	li		a1, 1
36ENTRY_NP(_atomic_add_64)
37	amoadd.d.aq	a0, a1, 0(a0)
38	ret
39END(_atomic_add_64)
40END(_atomic_inc_64)
41
42ATOMIC_OP_ALIAS(atomic_add_64,_atomic_add_64)
43ATOMIC_OP_ALIAS(atomic_add_long,_atomic_add_64)
44STRONG_ALIAS(_atomic_add_long,_atomic_add_64)
45ATOMIC_OP_ALIAS(atomic_add_ptr,_atomic_add_64)
46STRONG_ALIAS(_atomic_add_ptr,_atomic_add_64)
47CRT_ALIAS(__sync_fetch_and_add_8,_atomic_add_64)
48CRT_ALIAS(__atomic_fetch_add_8,_atomic_add_64)
49
50ATOMIC_OP_ALIAS(atomic_inc_64,_atomic_inc_64)
51ATOMIC_OP_ALIAS(atomic_inc_ulong,_atomic_inc_64)
52STRONG_ALIAS(_atomic_inc_ulong,_atomic_inc_64)
53ATOMIC_OP_ALIAS(atomic_inc_ptr,_atomic_inc_64)
54STRONG_ALIAS(_atomic_inc_ptr,_atomic_inc_64)
55
56ENTRY_NP(_atomic_inc_64_nv)
57	li		a1, 1
58ENTRY_NP(_atomic_add_64_nv)
59	amoadd.d.aq	t0, a1, 0(a0)	/* update memory and get old value */
60	LONG_ADD	a0, t0, a1	/* turn into new value */
61	ret
62END(_atomic_add_64_nv)
63END(_atomic_inc_64_nv)
64
65ATOMIC_OP_ALIAS(atomic_add_64_nv,_atomic_add_64_nv)
66ATOMIC_OP_ALIAS(atomic_add_long_nv,_atomic_add_64_nv)
67STRONG_ALIAS(_atomic_add_long_nv,_atomic_add_64_nv)
68ATOMIC_OP_ALIAS(atomic_add_ptr_nv,_atomic_add_64_nv)
69STRONG_ALIAS(_atomic_add_ptr_nv,_atomic_add_64_nv)
70CRT_ALIAS(__sync_add_and_fetch_8,_atomic_add_64_nv)
71CRT_ALIAS(__atomic_add_fetch_8,_atomic_add_64_nv)
72
73ATOMIC_OP_ALIAS(atomic_inc_64_nv,_atomic_inc_64_nv)
74ATOMIC_OP_ALIAS(atomic_inc_ulong_nv,_atomic_inc_64_nv)
75STRONG_ALIAS(_atomic_inc_ulong_nv,_atomic_inc_64_nv)
76ATOMIC_OP_ALIAS(atomic_inc_ptr_nv,_atomic_inc_64_nv)
77STRONG_ALIAS(_atomic_inc_ptr_nv,_atomic_inc_64_nv)
78