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
32#ifndef _MACHINE_MD_VAR_H_
33#define _MACHINE_MD_VAR_H_
34
35#include <x86/x86_var.h>
36
37extern u_int cpu_fxsr;
38extern u_int cyrix_did;
39#if defined(I586_CPU) && !defined(NO_F00F_HACK)
40extern int has_f00f_bug;
41#endif
42#ifdef COMPAT_FREEBSD4
43extern int szfreebsd4_sigcode;
44#endif
45#ifdef COMPAT_43
46extern int szosigcode;
47extern int sz_lcall_tramp;
48#endif
49extern vm_offset_t proc0kstack;
50extern size_t setidt_disp;
51
52struct segment_descriptor;
53union savefpu;
54
55int cp_slow0(vm_offset_t uva, size_t len, bool write,
56 void (*f)(vm_offset_t, void *), void *arg);
57void cpu_switch_load_gs(void) __asm(__STRING(cpu_switch_load_gs));
58void copyout_init_tramp(void);
59void doreti_iret(void) __asm(__STRING(doreti_iret));
60void doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault));
61void doreti_popl_ds(void) __asm(__STRING(doreti_popl_ds));
62void doreti_popl_ds_fault(void) __asm(__STRING(doreti_popl_ds_fault));
63void doreti_popl_es(void) __asm(__STRING(doreti_popl_es));
64void doreti_popl_es_fault(void) __asm(__STRING(doreti_popl_es_fault));
65void doreti_popl_fs(void) __asm(__STRING(doreti_popl_fs));
66void doreti_popl_fs_fault(void) __asm(__STRING(doreti_popl_fs_fault));
67void fill_based_sd(struct segment_descriptor *sdp, uint32_t base);
68void i686_pagezero(void *addr);
69void sse2_pagezero(void *addr);
70int cpu_minidumpsys_nopae(struct dumperinfo *, const struct minidumpstate *);
71int cpu_minidumpsys_pae(struct dumperinfo *, const struct minidumpstate *);
72void init_AMD_Elan_sc520(void);
73vm_paddr_t kvtop(void *addr);
74void panicifcpuunsupported(void);
75void ppro_reenable_apic(void);
76void set_fsbase(struct thread *td, uint32_t base);
77void set_gsbase(struct thread *td, uint32_t base);
78void setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int selec);
79void setidt_nodisp(int idx, uintptr_t func, int typ, int dpl, int selec);
80union savefpu *get_pcb_user_save_td(struct thread *td);
81union savefpu *get_pcb_user_save_pcb(struct pcb *pcb);
82
83#endif /* !_MACHINE_MD_VAR_H_ */