1 /* $NetBSD: linux_machdep.h,v 1.10 2008/11/12 12:36:10 ad Exp $ */
2 
3 /*-
4  * Copyright (c) 1995, 2000, 2001 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Frank van der Linden and Emmanuel Dreyfus.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 #ifndef _MIPS_LINUX_MACHDEP_H
33 #define _MIPS_LINUX_MACHDEP_H
34 
35 #include <compat/linux/common/linux_types.h>
36 #include <compat/linux/common/linux_signal.h>
37 #include <compat/linux/common/linux_siginfo.h>
38 
39 #if defined(ELFSIZE) && (ELFSIZE == 64)
40 /*
41  * From Linux's include/asm-mips64/sigcontext.h
42  */
43 struct linux_sigcontext {
44 	unsigned long long sc_regs[32];
45 	unsigned long long sc_fpregs[32];
46 	unsigned long long sc_mdhi;
47 	unsigned long long sc_mdlo;
48 	unsigned long long sc_pc;
49 	unsigned int sc_status;
50 	unsigned int sc_ownedfp;
51 	unsigned int sc_fpc_csr;
52 	unsigned int sc_fpc_eir;
53 	unsigned int sc_cause;
54 	unsigned int sc_badvaddr;
55 }
56 #else
57 /*
58  * From Linux's include/asm-mips/sigcontext.h
59  */
60 struct linux_sigcontext {
61 	unsigned int lsc_regmask;		/* Unused */
62 	unsigned int lsc_status;
63 	unsigned long long lsc_pc;
64 	unsigned long long lsc_regs[32];
65 	unsigned long long lsc_fpregs[32];	/* Unused */
66 	unsigned int lsc_ownedfp;
67 	unsigned int lsc_fpc_csr;		/* Unused */
68 	unsigned int lsc_fpc_eir;		/* Unused */
69 	unsigned int lsc_ssflags;		/* Unused */
70 	unsigned long long lsc_mdhi;
71 	unsigned long long lsc_mdlo;
72 	unsigned int lsc_cause;	  		/* Unused */
73 	unsigned int lsc_badvaddr;	  	/* Unused */
74 	unsigned long lsc_sigset[4]; 		/* kernel's sigset_t */
75 };
76 #endif
77 
78 /*
79  * From Linux's include/asm-mips/elf.h
80  */
81 #define LINUX_ELF_NGREG 45
82 #define LINUX_ELF_NFPREG 33
83 typedef unsigned long linux_elf_greg_t;
84 typedef linux_elf_greg_t linux_elf_gregset_t[LINUX_ELF_NGREG];
85 
86 /*
87  * From Linux's arch/mips/kernel/signal.c
88  */
89 struct linux_sigframe {
90 	unsigned int lsf_ass[4];
91 	unsigned int lsf_code[2];
92 	struct linux_sigcontext lsf_sc;
93 	linux_sigset_t lsf_mask;
94 };
95 
96 /*
97  * From Linux's include/asm-mips/ucontext.h
98  */
99 struct linux_ucontext {
100 	unsigned long luc_flags;
101 	struct linux_ucontext *luc_link;
102 	linux_stack_t luc_stack;
103 	struct linux_sigcontext luc_mcontext;
104 	linux_sigset_t luc_sigmask;
105 };
106 
107 /*
108  * From Linux's arch/mips/kernel/signal.c
109  */
110 struct linux_rt_sigframe
111 {
112 	unsigned int lrs_ass[4];
113 	unsigned int lrs_code[2];
114 	struct linux_siginfo lrs_info;
115 	struct linux_ucontext lrs_uc;
116 };
117 
118 /*
119  * From Linux's include/asm-mips/sysmips.h
120  */
121 #define LINUX_SETNAME		1	/* set hostname                  */
122 #define LINUX_FLUSH_CACHE	3	/* writeback and invalidate caches */
123 #define LINUX_MIPS_FIXADE	7	/* control address error fixing  */
124 #define LINUX_MIPS_RDNVRAM	10	/* read NVRAM */
125 #define LINUX_MIPS_ATOMIC_SET	2001	/* atomically set variable       */
126 
127 /*
128  * From Linux's include/linux/utsname.h
129  */
130 #define LINUX___NEW_UTS_LEN	64
131 
132 /*
133  * Major device numbers of VT device on both Linux and NetBSD. Used in
134  * ugly patch to fake device numbers.
135  *
136  * LINUX_CONS_MAJOR is from Linux's include/linux/major.h
137  */
138 #define LINUX_CONS_MAJOR 4
139 #define NETBSD_WSCONS_MAJOR 47 /* XXX */
140 
141 /*
142  * Linux ioctl calls for the keyboard.
143  *
144  * From Linux's include/linux/kd.h
145  */
146 #define LINUX_KDGKBMODE	0x4b44
147 #define LINUX_KDSKBMODE	0x4b45
148 #define LINUX_KDMKTONE	0x4b30
149 #define LINUX_KDSETMODE	0x4b3a
150 #define LINUX_KDENABIO	0x4b36
151 #define LINUX_KDDISABIO	0x4b37
152 #define LINUX_KDGETLED	0x4b31
153 #define LINUX_KDSETLED	0x4b32
154 #define LINUX_KDGKBTYPE	0x4B33
155 #define LINUX_KDGKBENT	0x4B46
156 
157 /*
158  * Mode for KDSKBMODE which we don't have (we just use plain mode for this)
159  *
160  * From Linux's include/linux/kd.h
161  */
162 #define LINUX_K_MEDIUMRAW 2
163 
164 /*
165  * VT ioctl calls in Linux (the ones that the pcvt emulation in
166  * wscons can handle)
167  *
168  * From Linux's include/linux/vt.h
169  */
170 #define LINUX_VT_OPENQRY	0x5600
171 #define LINUX_VT_GETMODE	0x5601
172 #define LINUX_VT_SETMODE	0x5602
173 #define LINUX_VT_GETSTATE	0x5603
174 #define LINUX_VT_RELDISP	0x5605
175 #define LINUX_VT_ACTIVATE	0x5606
176 #define LINUX_VT_WAITACTIVE 	0x5607
177 #define LINUX_VT_DISALLOCATE	0x5608
178 
179 /*
180  * This range used by VMWare (XXX)
181  *
182  * From Linux's include/linux/vt.h
183  * XXX not needed for mips
184  */
185 #define LINUX_VMWARE_NONE 200
186 #define LINUX_VMWARE_LAST 237
187 
188 /*
189  * Range of ioctls to just pass on, so that modules (like VMWare) can
190  * handle them.
191  *
192  * From Linux's include/linux/vt.h
193  */
194 #define LINUX_IOCTL_MIN_PASS LINUX_VMWARE_NONE
195 #define LINUX_IOCTL_MAX_PASS (LINUX_VMWARE_LAST+8)
196 
197 #ifdef _KERNEL
198 __BEGIN_DECLS /* XXX from NetBSD/i386. Not arch dependent? */
199 void linux_syscall_intern(struct proc *);
200 __END_DECLS
201 #endif /* !_KERNEL */
202 
203 #endif /* _MIPS_LINUX_MACHDEP_H */
204