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 * $FreeBSD$ 31 */ 32 33 #ifndef _MACHINE_MD_VAR_H_ 34 #define _MACHINE_MD_VAR_H_ 35 36 extern long Maxmem; 37 extern char sigcode[]; 38 extern int szsigcode; 39 extern u_long elf_hwcap; 40 extern u_long elf_hwcap2; 41 #ifdef COMPAT_FREEBSD32 42 extern u_long elf32_hwcap; 43 extern u_long elf32_hwcap2; 44 #endif 45 46 struct dumperinfo; 47 struct minidumpstate; 48 49 int cpu_minidumpsys(struct dumperinfo *, const struct minidumpstate *); 50 void generic_bs_fault(void) __asm(__STRING(generic_bs_fault)); 51 void generic_bs_peek_1(void) __asm(__STRING(generic_bs_peek_1)); 52 void generic_bs_peek_2(void) __asm(__STRING(generic_bs_peek_2)); 53 void generic_bs_peek_4(void) __asm(__STRING(generic_bs_peek_4)); 54 void generic_bs_peek_8(void) __asm(__STRING(generic_bs_peek_8)); 55 void generic_bs_poke_1(void) __asm(__STRING(generic_bs_poke_1)); 56 void generic_bs_poke_2(void) __asm(__STRING(generic_bs_poke_2)); 57 void generic_bs_poke_4(void) __asm(__STRING(generic_bs_poke_4)); 58 void generic_bs_poke_8(void) __asm(__STRING(generic_bs_poke_8)); 59 60 #ifdef _MD_WANT_SWAPWORD 61 /* 62 * XXX These are implemented primarily for swp/swpb emulation at the moment, and 63 * should be used sparingly with consideration -- they aren't implemented for 64 * any other platform. If we use them anywhere else, at a minimum they need 65 * KASAN/KMSAN interceptors added. 66 */ 67 int swapueword8(volatile uint8_t *base, uint8_t *val); 68 int swapueword32(volatile uint32_t *base, uint32_t *val); 69 #endif 70 71 #endif /* !_MACHINE_MD_VAR_H_ */ 72