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: releng/12.0/sys/i386/include/md_var.h 333445 2018-05-10 02:31:54Z imp $
32 */
33
34 #ifndef _MACHINE_MD_VAR_H_
35 #define _MACHINE_MD_VAR_H_
36
37 #include <x86/x86_var.h>
38
39 extern u_int cyrix_did;
40 #if defined(I586_CPU) && !defined(NO_F00F_HACK)
41 extern int has_f00f_bug;
42 #endif
43 #ifdef COMPAT_FREEBSD4
44 extern int szfreebsd4_sigcode;
45 #endif
46 #ifdef COMPAT_43
47 extern int szosigcode;
48 extern int sz_lcall_tramp;
49 #endif
50 extern uint32_t *vm_page_dump;
51 extern vm_offset_t proc0kstack;
52 extern uintptr_t setidt_disp;
53
54 struct segment_descriptor;
55 union savefpu;
56
57 int cp_slow0(vm_offset_t uva, size_t len, bool write,
58 void (*f)(vm_offset_t, void *), void *arg);
59 void cpu_switch_load_gs(void) __asm(__STRING(cpu_switch_load_gs));
60 void copyout_init_tramp(void);
61 void doreti_iret(void) __asm(__STRING(doreti_iret));
62 void doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault));
63 void doreti_popl_ds(void) __asm(__STRING(doreti_popl_ds));
64 void doreti_popl_ds_fault(void) __asm(__STRING(doreti_popl_ds_fault));
65 void doreti_popl_es(void) __asm(__STRING(doreti_popl_es));
66 void doreti_popl_es_fault(void) __asm(__STRING(doreti_popl_es_fault));
67 void doreti_popl_fs(void) __asm(__STRING(doreti_popl_fs));
68 void doreti_popl_fs_fault(void) __asm(__STRING(doreti_popl_fs_fault));
69 void fill_based_sd(struct segment_descriptor *sdp, uint32_t base);
70 void i686_pagezero(void *addr);
71 void sse2_pagezero(void *addr);
72 void init_AMD_Elan_sc520(void);
73 vm_paddr_t kvtop(void *addr);
74 void panicifcpuunsupported(void);
75 void ppro_reenable_apic(void);
76 void set_fsbase(struct thread *td, uint32_t base);
77 void set_gsbase(struct thread *td, uint32_t base);
78 void setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int selec);
79 void setidt_nodisp(int idx, uintptr_t func, int typ, int dpl, int selec);
80 union savefpu *get_pcb_user_save_td(struct thread *td);
81 union savefpu *get_pcb_user_save_pcb(struct pcb *pcb);
82
83 #endif /* !_MACHINE_MD_VAR_H_ */
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