1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1995 Bruce D. Evans.
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 * 3. Neither the name of the author nor the names of contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * $FreeBSD$
32 */
33
34#ifndef _MACHINE_MD_VAR_H_
35#define	_MACHINE_MD_VAR_H_
36
37#include <x86/x86_var.h>
38
39extern	u_int	cyrix_did;
40#if defined(I586_CPU) && !defined(NO_F00F_HACK)
41extern	int	has_f00f_bug;
42#endif
43#ifdef COMPAT_FREEBSD4
44extern	int	szfreebsd4_sigcode;
45#endif
46#ifdef COMPAT_43
47extern	int	szosigcode;
48extern	int	sz_lcall_tramp;
49#endif
50extern  vm_offset_t proc0kstack;
51extern	size_t setidt_disp;
52
53struct	segment_descriptor;
54union savefpu;
55
56int	cp_slow0(vm_offset_t uva, size_t len, bool write,
57	    void (*f)(vm_offset_t, void *), void *arg);
58void	cpu_switch_load_gs(void) __asm(__STRING(cpu_switch_load_gs));
59void	copyout_init_tramp(void);
60void	doreti_iret(void) __asm(__STRING(doreti_iret));
61void	doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault));
62void	doreti_popl_ds(void) __asm(__STRING(doreti_popl_ds));
63void	doreti_popl_ds_fault(void) __asm(__STRING(doreti_popl_ds_fault));
64void	doreti_popl_es(void) __asm(__STRING(doreti_popl_es));
65void	doreti_popl_es_fault(void) __asm(__STRING(doreti_popl_es_fault));
66void	doreti_popl_fs(void) __asm(__STRING(doreti_popl_fs));
67void	doreti_popl_fs_fault(void) __asm(__STRING(doreti_popl_fs_fault));
68void	fill_based_sd(struct segment_descriptor *sdp, uint32_t base);
69void	i686_pagezero(void *addr);
70void	sse2_pagezero(void *addr);
71int	minidumpsys_nopae(struct dumperinfo *);
72int	minidumpsys_pae(struct dumperinfo *);
73void	init_AMD_Elan_sc520(void);
74vm_paddr_t kvtop(void *addr);
75void	panicifcpuunsupported(void);
76void	ppro_reenable_apic(void);
77void	set_fsbase(struct thread *td, uint32_t base);
78void	set_gsbase(struct thread *td, uint32_t base);
79void	setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int selec);
80void	setidt_nodisp(int idx, uintptr_t func, int typ, int dpl, int selec);
81union savefpu *get_pcb_user_save_td(struct thread *td);
82union savefpu *get_pcb_user_save_pcb(struct pcb *pcb);
83
84#endif /* !_MACHINE_MD_VAR_H_ */
85