xref: /freebsd/sys/amd64/include/md_var.h (revision e39e854e27f53a784c3982cbeb68f4ad1cfd9162)
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	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_fxsr;
52 extern	u_int	cpu_high;
53 extern	u_int	cpu_id;
54 extern	u_int	cpu_max_ext_state_size;
55 extern	u_int	cpu_mxcsr_mask;
56 extern	u_int	cpu_procinfo;
57 extern	u_int	cpu_procinfo2;
58 extern	char	cpu_vendor[];
59 extern	u_int	cpu_vendor_id;
60 extern	char	kstack[];
61 extern	char	sigcode[];
62 extern	int	szsigcode;
63 extern	uint64_t *vm_page_dump;
64 extern	int	vm_page_dump_size;
65 extern	int	workaround_erratum383;
66 extern	int	_udatasel;
67 extern	int	_ucodesel;
68 extern	int	_ucode32sel;
69 extern	int	_ufssel;
70 extern	int	_ugssel;
71 extern	int	use_xsave;
72 extern	uint64_t xsave_mask;
73 
74 typedef void alias_for_inthand_t(u_int cs, u_int ef, u_int esp, u_int ss);
75 struct	pcb;
76 struct	savefpu;
77 struct	thread;
78 struct	reg;
79 struct	fpreg;
80 struct  dbreg;
81 struct	dumperinfo;
82 
83 void	*alloc_fpusave(int flags);
84 void	amd64_syscall(struct thread *td, int traced);
85 void	busdma_swi(void);
86 void	cpu_setregs(void);
87 void	ctx_fpusave(void *);
88 void	doreti_iret(void) __asm(__STRING(doreti_iret));
89 void	doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault));
90 void	ld_ds(void) __asm(__STRING(ld_ds));
91 void	ld_es(void) __asm(__STRING(ld_es));
92 void	ld_fs(void) __asm(__STRING(ld_fs));
93 void	ld_gs(void) __asm(__STRING(ld_gs));
94 void	ld_fsbase(void) __asm(__STRING(ld_fsbase));
95 void	ld_gsbase(void) __asm(__STRING(ld_gsbase));
96 void	ds_load_fault(void) __asm(__STRING(ds_load_fault));
97 void	es_load_fault(void) __asm(__STRING(es_load_fault));
98 void	fs_load_fault(void) __asm(__STRING(fs_load_fault));
99 void	gs_load_fault(void) __asm(__STRING(gs_load_fault));
100 void	fsbase_load_fault(void) __asm(__STRING(fsbase_load_fault));
101 void	gsbase_load_fault(void) __asm(__STRING(gsbase_load_fault));
102 void	dump_add_page(vm_paddr_t);
103 void	dump_drop_page(vm_paddr_t);
104 void	initializecpu(void);
105 void	initializecpucache(void);
106 void	fillw(int /*u_short*/ pat, void *base, size_t cnt);
107 void	fpstate_drop(struct thread *td);
108 int	is_physical_memory(vm_paddr_t addr);
109 int	isa_nmi(int cd);
110 void	pagecopy(void *from, void *to);
111 void	pagezero(void *addr);
112 void	setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int ist);
113 int	user_dbreg_trap(void);
114 void	minidumpsys(struct dumperinfo *);
115 struct savefpu *get_pcb_user_save_td(struct thread *td);
116 struct savefpu *get_pcb_user_save_pcb(struct pcb *pcb);
117 struct pcb *get_pcb_td(struct thread *td);
118 
119 #endif /* !_MACHINE_MD_VAR_H_ */
120