1/*-
2 * Copyright (c) 1995 Bruce D. Evans.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the author nor the names of contributors
14 *    may be used to endorse or promote products derived from this software
15 *    without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 *	from: FreeBSD: src/sys/i386/include/md_var.h,v 1.40 2001/07/12
30 */
31
32#ifndef	_MACHINE_MD_VAR_H_
33#define	_MACHINE_MD_VAR_H_
34
35extern long Maxmem;
36extern char sigcode[];
37extern int szsigcode;
38extern u_long elf_hwcap;
39extern u_long elf_hwcap2;
40extern u_long linux_elf_hwcap;
41extern u_long linux_elf_hwcap2;
42#ifdef COMPAT_FREEBSD32
43extern u_long elf32_hwcap;
44extern u_long elf32_hwcap2;
45#endif
46
47struct dumperinfo;
48struct minidumpstate;
49
50int cpu_minidumpsys(struct dumperinfo *, const struct minidumpstate *);
51void generic_bs_fault(void) __asm(__STRING(generic_bs_fault));
52void generic_bs_peek_1(void) __asm(__STRING(generic_bs_peek_1));
53void generic_bs_peek_2(void) __asm(__STRING(generic_bs_peek_2));
54void generic_bs_peek_4(void) __asm(__STRING(generic_bs_peek_4));
55void generic_bs_peek_8(void) __asm(__STRING(generic_bs_peek_8));
56void generic_bs_poke_1(void) __asm(__STRING(generic_bs_poke_1));
57void generic_bs_poke_2(void) __asm(__STRING(generic_bs_poke_2));
58void generic_bs_poke_4(void) __asm(__STRING(generic_bs_poke_4));
59void generic_bs_poke_8(void) __asm(__STRING(generic_bs_poke_8));
60
61#ifdef _MD_WANT_SWAPWORD
62/*
63 * XXX These are implemented primarily for swp/swpb emulation at the moment, and
64 * should be used sparingly with consideration -- they aren't implemented for
65 * any other platform.  If we use them anywhere else, at a minimum they need
66 * KASAN/KMSAN interceptors added.
67 */
68int	swapueword8(volatile uint8_t *base, uint8_t *val);
69int	swapueword32(volatile uint32_t *base, uint32_t *val);
70#endif
71
72#endif /* !_MACHINE_MD_VAR_H_ */
73