md_var.h revision 277374 
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 277374 2015-01-19 10:52:55Z kib $
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_max_ext_state_size;
56extern	u_int	cpu_mxcsr_mask;
57extern	u_int	cpu_procinfo;
58extern	u_int	cpu_procinfo2;
59extern	char	cpu_vendor[];
60extern	u_int	cpu_vendor_id;
61extern	u_int	cpu_mon_mwait_flags;
62extern	u_int	cpu_mon_min_size;
63extern	u_int	cpu_mon_max_size;
64extern	u_int	cpu_maxphyaddr;
65extern	u_int	cyrix_did;
66#if defined(I586_CPU) && !defined(NO_F00F_HACK)
67extern	int	has_f00f_bug;
68#endif
69extern	char	kstack[];
70extern	char	sigcode[];
71extern	int	szsigcode;
72#ifdef COMPAT_FREEBSD4
73extern	int	szfreebsd4_sigcode;
74#endif
75#ifdef COMPAT_43
76extern	int	szosigcode;
77#endif
78extern	uint32_t *vm_page_dump;
79extern	int	vm_page_dump_size;
80extern	int	workaround_erratum383;
81extern	int	_udatasel;
82extern	int	_ucodesel;
83extern	int	use_xsave;
84extern	uint64_t xsave_mask;
85
86typedef void alias_for_inthand_t(u_int cs, u_int ef, u_int esp, u_int ss);
87struct	pcb;
88union	savefpu;
89struct	thread;
90struct	reg;
91struct	fpreg;
92struct  dbreg;
93struct	dumperinfo;
94
95void	*alloc_fpusave(int flags);
96void	bcopyb(const void *from, void *to, size_t len);
97void	busdma_swi(void);
98void	cpu_setregs(void);
99void	cpu_switch_load_gs(void) __asm(__STRING(cpu_switch_load_gs));
100void	doreti_iret(void) __asm(__STRING(doreti_iret));
101void	doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault));
102void	doreti_popl_ds(void) __asm(__STRING(doreti_popl_ds));
103void	doreti_popl_ds_fault(void) __asm(__STRING(doreti_popl_ds_fault));
104void	doreti_popl_es(void) __asm(__STRING(doreti_popl_es));
105void	doreti_popl_es_fault(void) __asm(__STRING(doreti_popl_es_fault));
106void	doreti_popl_fs(void) __asm(__STRING(doreti_popl_fs));
107void	doreti_popl_fs_fault(void) __asm(__STRING(doreti_popl_fs_fault));
108void	dump_add_page(vm_paddr_t);
109void	dump_drop_page(vm_paddr_t);
110void	finishidentcpu(void);
111void	fillw(int /*u_short*/ pat, void *base, size_t cnt);
112void	initializecpu(void);
113void	initializecpucache(void);
114void	i686_pagezero(void *addr);
115void	sse2_pagezero(void *addr);
116void	init_AMD_Elan_sc520(void);
117int	is_physical_memory(vm_paddr_t addr);
118int	isa_nmi(int cd);
119vm_paddr_t kvtop(void *addr);
120void	panicifcpuunsupported(void);
121void	ppro_reenable_apic(void);
122void	printcpuinfo(void);
123void	setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int selec);
124int     user_dbreg_trap(void);
125void	minidumpsys(struct dumperinfo *);
126union savefpu *get_pcb_user_save_td(struct thread *td);
127union savefpu *get_pcb_user_save_pcb(struct pcb *pcb);
128struct pcb *get_pcb_td(struct thread *td);
129
130#endif /* !_MACHINE_MD_VAR_H_ */
131