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 * $FreeBSD: releng/5.2/sys/i386/include/md_var.h 121999 2003-11-03 22:37:28Z jhb $
30 */
31
32 #ifndef _MACHINE_MD_VAR_H_
33 #define _MACHINE_MD_VAR_H_
34
35 /*
36 * Miscellaneous machine-dependent declarations.
37 */
38
39 extern void (*bcopy_vector)(const void *from, void *to, size_t len);
40 extern void (*bzero_vector)(void *buf, size_t len);
41 extern int (*copyin_vector)(const void *udaddr, void *kaddr, size_t len);
42 extern int (*copyout_vector)(const void *kaddr, void *udaddr, size_t len);
43
44 extern long Maxmem;
45 extern u_int atdevbase; /* offset in virtual memory of ISA io mem */
46 extern u_int basemem; /* PA of original top of base memory */
47 extern int busdma_swi_pending;
48 extern u_int cpu_exthigh;
49 extern u_int cpu_feature;
50 extern u_int cpu_fxsr;
51 extern u_int cpu_high;
52 extern u_int cpu_id;
53 extern u_int cpu_procinfo;
54 extern char cpu_vendor[];
55 extern u_int cyrix_did;
56 extern uint16_t *elan_mmcr;
57 extern char kstack[];
58 #ifdef PC98
59 extern int need_pre_dma_flush;
60 extern int need_post_dma_flush;
61 #endif
62 extern char sigcode[];
63 extern int szsigcode;
64 #ifdef COMPAT_FREEBSD4
65 extern int szfreebsd4_sigcode;
66 #endif
67 #ifdef COMPAT_43
68 extern int szosigcode;
69 #endif
70
71 typedef void alias_for_inthand_t(u_int cs, u_int ef, u_int esp, u_int ss);
72 struct thread;
73 struct reg;
74 struct fpreg;
75 struct dbreg;
76
77 void bcopyb(const void *from, void *to, size_t len);
78 void busdma_swi(void);
79 void cpu_setregs(void);
80 void cpu_switch_load_gs(void) __asm(__STRING(cpu_switch_load_gs));
81 void doreti_iret(void) __asm(__STRING(doreti_iret));
82 void doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault));
83 void doreti_popl_ds(void) __asm(__STRING(doreti_popl_ds));
84 void doreti_popl_ds_fault(void) __asm(__STRING(doreti_popl_ds_fault));
85 void doreti_popl_es(void) __asm(__STRING(doreti_popl_es));
86 void doreti_popl_es_fault(void) __asm(__STRING(doreti_popl_es_fault));
87 void doreti_popl_fs(void) __asm(__STRING(doreti_popl_fs));
88 void doreti_popl_fs_fault(void) __asm(__STRING(doreti_popl_fs_fault));
89 void enable_sse(void);
90 void fillw(int /*u_short*/ pat, void *base, size_t cnt);
91 void i486_bzero(void *buf, size_t len);
92 void i586_bcopy(const void *from, void *to, size_t len);
93 void i586_bzero(void *buf, size_t len);
94 int i586_copyin(const void *udaddr, void *kaddr, size_t len);
95 int i586_copyout(const void *kaddr, void *udaddr, size_t len);
96 void i686_pagezero(void *addr);
97 void sse2_pagezero(void *addr);
98 void init_AMD_Elan_sc520(void);
99 int is_physical_memory(vm_offset_t addr);
100 int isa_nmi(int cd);
101 vm_paddr_t kvtop(void *addr);
102 void setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int selec);
103 int user_dbreg_trap(void);
104
105 #endif /* !_MACHINE_MD_VAR_H_ */
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