xref: /freebsd/sys/i386/include/md_var.h (revision 952364486a4b9d135e4b28f7f88a8703a74eae6f)
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;	/* PA of original top of base memory */
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	amd_pminfo;
48 extern	u_int	via_feature_rng;
49 extern	u_int	via_feature_xcrypt;
50 extern	u_int	cpu_clflush_line_size;
51 extern	u_int	cpu_stdext_feature;
52 extern	u_int	cpu_fxsr;
53 extern	u_int	cpu_high;
54 extern	u_int	cpu_id;
55 extern	u_int	cpu_max_ext_state_size;
56 extern	u_int	cpu_mxcsr_mask;
57 extern	u_int	cpu_procinfo;
58 extern	u_int	cpu_procinfo2;
59 extern	char	cpu_vendor[];
60 extern	u_int	cpu_vendor_id;
61 extern	u_int	cpu_mon_mwait_flags;
62 extern	u_int	cpu_mon_min_size;
63 extern	u_int	cpu_mon_max_size;
64 extern	u_int	cpu_maxphyaddr;
65 extern	u_int	cyrix_did;
66 #if defined(I586_CPU) && !defined(NO_F00F_HACK)
67 extern	int	has_f00f_bug;
68 #endif
69 extern	u_int	hv_high;
70 extern	char	hv_vendor[];
71 extern	char	kstack[];
72 extern	char	sigcode[];
73 extern	int	szsigcode;
74 #ifdef COMPAT_FREEBSD4
75 extern	int	szfreebsd4_sigcode;
76 #endif
77 #ifdef COMPAT_43
78 extern	int	szosigcode;
79 #endif
80 extern	uint32_t *vm_page_dump;
81 extern	int	vm_page_dump_size;
82 extern	int	workaround_erratum383;
83 extern	int	_udatasel;
84 extern	int	_ucodesel;
85 extern	int	use_xsave;
86 extern	uint64_t xsave_mask;
87 
88 typedef void alias_for_inthand_t(u_int cs, u_int ef, u_int esp, u_int ss);
89 struct	pcb;
90 union	savefpu;
91 struct	thread;
92 struct	reg;
93 struct	fpreg;
94 struct  dbreg;
95 struct	dumperinfo;
96 
97 void	*alloc_fpusave(int flags);
98 void	bcopyb(const void *from, void *to, size_t len);
99 void	busdma_swi(void);
100 void	cpu_probe_amdc1e(void);
101 void	cpu_setregs(void);
102 void	cpu_switch_load_gs(void) __asm(__STRING(cpu_switch_load_gs));
103 void	doreti_iret(void) __asm(__STRING(doreti_iret));
104 void	doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault));
105 void	doreti_popl_ds(void) __asm(__STRING(doreti_popl_ds));
106 void	doreti_popl_ds_fault(void) __asm(__STRING(doreti_popl_ds_fault));
107 void	doreti_popl_es(void) __asm(__STRING(doreti_popl_es));
108 void	doreti_popl_es_fault(void) __asm(__STRING(doreti_popl_es_fault));
109 void	doreti_popl_fs(void) __asm(__STRING(doreti_popl_fs));
110 void	doreti_popl_fs_fault(void) __asm(__STRING(doreti_popl_fs_fault));
111 void	dump_add_page(vm_paddr_t);
112 void	dump_drop_page(vm_paddr_t);
113 void	finishidentcpu(void);
114 void	fillw(int /*u_short*/ pat, void *base, size_t cnt);
115 void	initializecpu(void);
116 void	initializecpucache(void);
117 void	i686_pagezero(void *addr);
118 void	sse2_pagezero(void *addr);
119 void	init_AMD_Elan_sc520(void);
120 int	is_physical_memory(vm_paddr_t addr);
121 int	isa_nmi(int cd);
122 vm_paddr_t kvtop(void *addr);
123 void	panicifcpuunsupported(void);
124 void	ppro_reenable_apic(void);
125 void	printcpuinfo(void);
126 void	setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int selec);
127 int     user_dbreg_trap(void);
128 int	minidumpsys(struct dumperinfo *);
129 union savefpu *get_pcb_user_save_td(struct thread *td);
130 union savefpu *get_pcb_user_save_pcb(struct pcb *pcb);
131 struct pcb *get_pcb_td(struct thread *td);
132 
133 #endif /* !_MACHINE_MD_VAR_H_ */
134