2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1995 Bruce D. Evans.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
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
34 #ifndef _MACHINE_MD_VAR_H_
35 #define _MACHINE_MD_VAR_H_
37 #include <x86/x86_var.h>
39 extern u_int cyrix_did;
40 #if defined(I586_CPU) && !defined(NO_F00F_HACK)
41 extern int has_f00f_bug;
43 #ifdef COMPAT_FREEBSD4
44 extern int szfreebsd4_sigcode;
47 extern int szosigcode;
49 extern uint32_t *vm_page_dump;
51 struct segment_descriptor;
54 void bcopyb(const void *from, void *to, size_t len);
55 void cpu_switch_load_gs(void) __asm(__STRING(cpu_switch_load_gs));
56 void doreti_iret(void) __asm(__STRING(doreti_iret));
57 void doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault));
58 void doreti_popl_ds(void) __asm(__STRING(doreti_popl_ds));
59 void doreti_popl_ds_fault(void) __asm(__STRING(doreti_popl_ds_fault));
60 void doreti_popl_es(void) __asm(__STRING(doreti_popl_es));
61 void doreti_popl_es_fault(void) __asm(__STRING(doreti_popl_es_fault));
62 void doreti_popl_fs(void) __asm(__STRING(doreti_popl_fs));
63 void doreti_popl_fs_fault(void) __asm(__STRING(doreti_popl_fs_fault));
64 void fill_based_sd(struct segment_descriptor *sdp, uint32_t base);
65 void i686_pagezero(void *addr);
66 void sse2_pagezero(void *addr);
67 void init_AMD_Elan_sc520(void);
68 vm_paddr_t kvtop(void *addr);
69 void panicifcpuunsupported(void);
70 void ppro_reenable_apic(void);
71 void set_fsbase(struct thread *td, uint32_t base);
72 void set_gsbase(struct thread *td, uint32_t base);
73 void setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int selec);
74 union savefpu *get_pcb_user_save_td(struct thread *td);
75 union savefpu *get_pcb_user_save_pcb(struct pcb *pcb);
77 #endif /* !_MACHINE_MD_VAR_H_ */