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/6.0/sys/i386/include/md_var.h 147691 2005-06-30 06:44:34Z peter $
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 basemem; /* PA of original top of base memory */
46 extern int busdma_swi_pending;
47 extern u_int cpu_exthigh;
48 extern u_int cpu_feature;
49 extern u_int cpu_feature2;
50 extern u_int amd_feature;
51 extern u_int cpu_fxsr;
52 extern u_int cpu_high;
53 extern u_int cpu_id;
54 extern u_int cpu_procinfo;
55 extern char cpu_vendor[];
56 extern u_int cyrix_did;
57 extern char kstack[];
58 extern char sigcode[];
59 extern int szsigcode;
60 #ifdef COMPAT_FREEBSD4
61 extern int szfreebsd4_sigcode;
62 #endif
63 #ifdef COMPAT_43
64 extern int szosigcode;
65 #endif
66
67 typedef void alias_for_inthand_t(u_int cs, u_int ef, u_int esp, u_int ss);
68 struct thread;
69 struct reg;
70 struct fpreg;
71 struct dbreg;
72
73 void bcopyb(const void *from, void *to, size_t len);
74 void busdma_swi(void);
75 void cpu_setregs(void);
76 void cpu_switch_load_gs(void) __asm(__STRING(cpu_switch_load_gs));
77 void doreti_iret(void) __asm(__STRING(doreti_iret));
78 void doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault));
79 void doreti_popl_ds(void) __asm(__STRING(doreti_popl_ds));
80 void doreti_popl_ds_fault(void) __asm(__STRING(doreti_popl_ds_fault));
81 void doreti_popl_es(void) __asm(__STRING(doreti_popl_es));
82 void doreti_popl_es_fault(void) __asm(__STRING(doreti_popl_es_fault));
83 void doreti_popl_fs(void) __asm(__STRING(doreti_popl_fs));
84 void doreti_popl_fs_fault(void) __asm(__STRING(doreti_popl_fs_fault));
85 void enable_sse(void);
86 void fillw(int /*u_short*/ pat, void *base, size_t cnt);
87 void i486_bzero(void *buf, size_t len);
88 void i586_bcopy(const void *from, void *to, size_t len);
89 void i586_bzero(void *buf, size_t len);
90 int i586_copyin(const void *udaddr, void *kaddr, size_t len);
91 int i586_copyout(const void *kaddr, void *udaddr, size_t len);
92 void i686_pagezero(void *addr);
93 void sse2_pagezero(void *addr);
94 void init_AMD_Elan_sc520(void);
95 int is_physical_memory(vm_paddr_t addr);
96 int isa_nmi(int cd);
97 vm_paddr_t kvtop(void *addr);
98 void setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int selec);
99 int user_dbreg_trap(void);
100
101 #endif /* !_MACHINE_MD_VAR_H_ */
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