1/*        $NetBSD: atomic_or.S,v 1.6 2020/08/06 10:00:21 skrll Exp $  */
2
3/*-
4 * Copyright (c) 2008 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include <machine/asm.h>
30#include "atomic_op_asm.h"
31
32          .text
33          .set      noreorder
34#ifdef _KERNEL_OPT
35#include "opt_cputype.h"
36#ifndef MIPS3_LOONGSON2F
37          .set      noat
38          .set      nomacro
39#endif
40#else /* _KERNEL_OPT */
41          .set      noat
42          .set      nomacro
43#endif /* _KERNEL_OPT */
44
45LEAF(_atomic_or_32)
46          LLSCSYNC
471:        INT_LL              t0, 0(a0)
48           nop
49          or                  t0, a1
50          INT_SC              t0, 0(a0)
51          beq                 t0, zero, 1b
52           nop
53          j                   ra
54           nop
55END(_atomic_or_32)
56ATOMIC_OP_ALIAS(atomic_or_32, _atomic_or_32)
57
58LEAF(_atomic_or_32_nv)
59          LLSCSYNC
601:        INT_LL              v0, 0(a0)
61           nop
62          or                  v0, a1
63          move                t0, v0
64          INT_SC              t0, 0(a0)
65          beq                 t0, zero, 1b
66           nop
67          j                   ra
68           nop
69END(_atomic_or_32_nv)
70ATOMIC_OP_ALIAS(atomic_or_32_nv, _atomic_or_32_nv)
71
72#if !defined(__mips_o32)
73LEAF(_atomic_or_64)
74          LLSCSYNC
751:        REG_LL              t0, 0(a0)
76           nop
77          or                  t0, a1
78          REG_SC              t0, 0(a0)
79          beq                 t0, zero, 1b
80           nop
81          j                   ra
82           nop
83END(_atomic_or_64)
84ATOMIC_OP_ALIAS(atomic_or_64, _atomic_or_64)
85
86LEAF(_atomic_or_64_nv)
87          LLSCSYNC
881:        REG_LL              v0, 0(a0)
89           nop
90          or                  v0, a1
91          move                t0, v0
92          REG_SC              t0, 0(a0)
93          beq                 t0, zero, 1b
94           nop
95          j                   ra
96           nop
97END(_atomic_or_64_nv)
98ATOMIC_OP_ALIAS(atomic_or_64_nv, _atomic_or_64_nv)
99#endif
100
101#ifdef _LP64
102STRONG_ALIAS(_atomic_or_ulong,                    _atomic_or_64)
103STRONG_ALIAS(_atomic_or_ulong_nv,       _atomic_or_64_nv)
104#else
105STRONG_ALIAS(_atomic_or_ulong,                    _atomic_or_32)
106STRONG_ALIAS(_atomic_or_ulong_nv,       _atomic_or_32_nv)
107#endif
108STRONG_ALIAS(_atomic_or_uint,           _atomic_or_32)
109STRONG_ALIAS(_atomic_or_uint_nv,        _atomic_or_32_nv)
110
111ATOMIC_OP_ALIAS(atomic_or_uint,                   _atomic_or_uint)
112ATOMIC_OP_ALIAS(atomic_or_uint_nv,      _atomic_or_uint_nv)
113ATOMIC_OP_ALIAS(atomic_or_ulong,        _atomic_or_ulong)
114ATOMIC_OP_ALIAS(atomic_or_ulong_nv,     _atomic_or_ulong_nv)
115