2 * Copyright (c) 2022 The FreeBSD Foundation
4 * This software was developed by Andrew Turner under sponsorship from
5 * the FreeBSD Foundation.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #include <sys/cdefs.h>
31 #include <sys/param.h>
33 #include <machine/atomic.h>
34 #include <machine/ifunc.h>
35 #define _MD_WANT_SWAPWORD
36 #include <machine/md_var.h>
38 int casueword32_llsc(volatile uint32_t *, uint32_t, uint32_t *, uint32_t);
39 int casueword32_lse(volatile uint32_t *, uint32_t, uint32_t *, uint32_t);
41 int casueword_llsc(volatile u_long *, u_long, u_long *, u_long);
42 int casueword_lse(volatile u_long *, u_long, u_long *, u_long);
44 int swapueword8_llsc(volatile uint8_t *, uint8_t *);
45 int swapueword8_lse(volatile uint8_t *, uint8_t *);
47 int swapueword32_llsc(volatile uint32_t *, uint32_t *);
48 int swapueword32_lse(volatile uint32_t *, uint32_t *);
50 DEFINE_IFUNC(, int, casueword32, (volatile uint32_t *base, uint32_t oldval,
51 uint32_t *oldvalp, uint32_t newval))
54 return (casueword32_lse);
56 return (casueword32_llsc);
59 DEFINE_IFUNC(, int, casueword, (volatile u_long *base, u_long oldval,
60 u_long *oldvalp, u_long newval))
63 return (casueword_lse);
65 return (casueword_llsc);
68 DEFINE_IFUNC(, int, swapueword8, (volatile uint8_t *base, uint8_t *val))
71 return (swapueword8_lse);
73 return (swapueword8_llsc);
76 DEFINE_IFUNC(, int, swapueword32, (volatile uint32_t *base, uint32_t *val))
79 return (swapueword32_lse);
81 return (swapueword32_llsc);