xref: /freebsd/sys/amd64/include/md_var.h (revision 1e413cf93298b5b97441a21d9a50fdcd0ee9945e)
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  * $FreeBSD$
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	long	Maxmem;
40 extern	u_int	basemem;
41 extern	int	busdma_swi_pending;
42 extern	u_int	cpu_exthigh;
43 extern	u_int	cpu_feature;
44 extern	u_int	cpu_feature2;
45 extern	u_int	amd_feature;
46 extern	u_int	amd_feature2;
47 extern	u_int	cpu_fxsr;
48 extern	u_int	cpu_high;
49 extern	u_int	cpu_id;
50 extern	u_int	cpu_mxcsr_mask;
51 extern	u_int	cpu_procinfo;
52 extern	u_int	cpu_procinfo2;
53 extern	char	cpu_vendor[];
54 extern	char	kstack[];
55 extern	char	sigcode[];
56 extern	int	szsigcode;
57 extern	uint64_t *vm_page_dump;
58 extern	int	vm_page_dump_size;
59 
60 typedef void alias_for_inthand_t(u_int cs, u_int ef, u_int esp, u_int ss);
61 struct	thread;
62 struct	reg;
63 struct	fpreg;
64 struct  dbreg;
65 struct	dumperinfo;
66 
67 void	busdma_swi(void);
68 void	cpu_setregs(void);
69 void	doreti_iret(void) __asm(__STRING(doreti_iret));
70 void	doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault));
71 void	dump_add_page(vm_paddr_t);
72 void	dump_drop_page(vm_paddr_t);
73 void	initializecpu(void);
74 void	fillw(int /*u_short*/ pat, void *base, size_t cnt);
75 void	fpstate_drop(struct thread *td);
76 int	is_physical_memory(vm_paddr_t addr);
77 int	isa_nmi(int cd);
78 void	pagecopy(void *from, void *to);
79 void	pagezero(void *addr);
80 void	setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int ist);
81 int	user_dbreg_trap(void);
82 void	minidumpsys(struct dumperinfo *);
83 
84 #endif /* !_MACHINE_MD_VAR_H_ */
85