md_var.h revision 276070 
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: stable/10/sys/i386/include/md_var.h 276070 2014-12-22 18:40:59Z jhb $
30 */
31
32#ifndef _MACHINE_MD_VAR_H_
33#define	_MACHINE_MD_VAR_H_
34
35/*
36 * Miscellaneous machine-dependent declarations.
37 */
38
39extern	long	Maxmem;
40extern	u_int	basemem;	/* PA of original top of base memory */
41extern	int	busdma_swi_pending;
42extern	u_int	cpu_exthigh;
43extern	u_int	cpu_feature;
44extern	u_int	cpu_feature2;
45extern	u_int	amd_feature;
46extern	u_int	amd_feature2;
47extern	u_int	amd_pminfo;
48extern	u_int	via_feature_rng;
49extern	u_int	via_feature_xcrypt;
50extern	u_int	cpu_clflush_line_size;
51extern	u_int	cpu_stdext_feature;
52extern	u_int	cpu_fxsr;
53extern	u_int	cpu_high;
54extern	u_int	cpu_id;
55extern	u_int	cpu_mxcsr_mask;
56extern	u_int	cpu_procinfo;
57extern	u_int	cpu_procinfo2;
58extern	char	cpu_vendor[];
59extern	u_int	cpu_vendor_id;
60extern	u_int	cpu_mon_mwait_flags;
61extern	u_int	cpu_mon_min_size;
62extern	u_int	cpu_mon_max_size;
63extern	u_int	cyrix_did;
64#if defined(I586_CPU) && !defined(NO_F00F_HACK)
65extern	int	has_f00f_bug;
66#endif
67extern	char	kstack[];
68extern	char	sigcode[];
69extern	int	szsigcode;
70#ifdef COMPAT_FREEBSD4
71extern	int	szfreebsd4_sigcode;
72#endif
73#ifdef COMPAT_43
74extern	int	szosigcode;
75#endif
76extern	uint32_t *vm_page_dump;
77extern	int	vm_page_dump_size;
78extern	int	workaround_erratum383;
79
80typedef void alias_for_inthand_t(u_int cs, u_int ef, u_int esp, u_int ss);
81struct	thread;
82struct	reg;
83struct	fpreg;
84struct  dbreg;
85struct	dumperinfo;
86
87void	bcopyb(const void *from, void *to, size_t len);
88void	busdma_swi(void);
89void	cpu_setregs(void);
90void	cpu_switch_load_gs(void) __asm(__STRING(cpu_switch_load_gs));
91void	doreti_iret(void) __asm(__STRING(doreti_iret));
92void	doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault));
93void	doreti_popl_ds(void) __asm(__STRING(doreti_popl_ds));
94void	doreti_popl_ds_fault(void) __asm(__STRING(doreti_popl_ds_fault));
95void	doreti_popl_es(void) __asm(__STRING(doreti_popl_es));
96void	doreti_popl_es_fault(void) __asm(__STRING(doreti_popl_es_fault));
97void	doreti_popl_fs(void) __asm(__STRING(doreti_popl_fs));
98void	doreti_popl_fs_fault(void) __asm(__STRING(doreti_popl_fs_fault));
99void	dump_add_page(vm_paddr_t);
100void	dump_drop_page(vm_paddr_t);
101void	finishidentcpu(void);
102#if defined(I586_CPU) && defined(CPU_WT_ALLOC)
103void	enable_K5_wt_alloc(void);
104void	enable_K6_wt_alloc(void);
105void	enable_K6_2_wt_alloc(void);
106#endif
107void	enable_sse(void);
108void	fillw(int /*u_short*/ pat, void *base, size_t cnt);
109void	initializecpu(void);
110void	i686_pagezero(void *addr);
111void	sse2_pagezero(void *addr);
112void	init_AMD_Elan_sc520(void);
113int	is_physical_memory(vm_paddr_t addr);
114int	isa_nmi(int cd);
115vm_paddr_t kvtop(void *addr);
116void	panicifcpuunsupported(void);
117void	printcpuinfo(void);
118void	setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int selec);
119int     user_dbreg_trap(void);
120void	minidumpsys(struct dumperinfo *);
121
122#endif /* !_MACHINE_MD_VAR_H_ */
123