xref: /netbsd/sys/arch/sun3/sun3/db_machdep.c (revision bf9ec67e)
1 /*	$NetBSD: db_machdep.c,v 1.17 2001/05/28 22:00:12 chs Exp $	*/
2 
3 /*-
4  * Copyright (c) 1996 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Gordon W. Ross.
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  * 3. All advertising materials mentioning features or use of this software
19  *    must display the following acknowledgement:
20  *        This product includes software developed by the NetBSD
21  *        Foundation, Inc. and its contributors.
22  * 4. Neither the name of The NetBSD Foundation nor the names of its
23  *    contributors may be used to endorse or promote products derived
24  *    from this software without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36  * POSSIBILITY OF SUCH DAMAGE.
37  */
38 
39 /*
40  * Machine-dependent functions used by ddb
41  */
42 
43 #include <sys/param.h>
44 #include <sys/proc.h>
45 
46 #include <machine/db_machdep.h>
47 #include <machine/pte.h>
48 
49 #include <sun3/sun3/machdep.h>
50 #ifdef	_SUN3_
51 #include <sun3/sun3/control.h>
52 #endif	/* SUN3 */
53 
54 #include <ddb/db_command.h>
55 #include <ddb/db_output.h>
56 #include <ddb/db_interface.h>
57 
58 static void db_mach_abort   __P((db_expr_t, int, db_expr_t, char *));
59 static void db_mach_halt    __P((db_expr_t, int, db_expr_t, char *));
60 static void db_mach_reboot  __P((db_expr_t, int, db_expr_t, char *));
61 static void db_mach_pagemap __P((db_expr_t, int, db_expr_t, char *));
62 
63 const struct db_command db_machine_command_table[] = {
64 	{ "abort",	db_mach_abort,	0,	0 },
65 	{ "halt",	db_mach_halt,	0,	0 },
66 	{ "pgmap",	db_mach_pagemap, 	CS_SET_DOT, 0 },
67 	{ "reboot",	db_mach_reboot,	0,	0 },
68 	{ NULL }
69 };
70 
71 /*
72  * Machine-specific ddb commands for the sun3:
73  *    abort:	Drop into monitor via abort (allows continue)
74  *    halt: 	Exit to monitor as in halt(8)
75  *    reboot:	Reboot the machine as in reboot(8)
76  *    pgmap:	Given addr, Print addr, segmap, pagemap, pte
77  */
78 
79 static void
80 db_mach_abort(addr, have_addr, count, modif)
81 	db_expr_t	addr;
82 	int		have_addr;
83 	db_expr_t	count;
84 	char *		modif;
85 {
86 	sunmon_abort();
87 }
88 
89 static void
90 db_mach_halt(addr, have_addr, count, modif)
91 	db_expr_t	addr;
92 	int		have_addr;
93 	db_expr_t	count;
94 	char *		modif;
95 {
96 	sunmon_halt();
97 }
98 
99 static void
100 db_mach_reboot(addr, have_addr, count, modif)
101 	db_expr_t	addr;
102 	int		have_addr;
103 	db_expr_t	count;
104 	char *		modif;
105 {
106 	sunmon_reboot("");
107 }
108 
109 
110 static void pte_print __P((int));
111 
112 static void
113 db_mach_pagemap(addr, have_addr, count, modif)
114 	db_expr_t	addr;
115 	int		have_addr;
116 	db_expr_t	count;
117 	char *		modif;
118 {
119 	u_long va = m68k_trunc_page((u_long)addr);
120 	int pte;
121 #ifdef	_SUN3_
122 	int sme;
123 
124 	sme = get_segmap(va);
125 	if (sme == 0xFF) {
126 		pte = 0;
127 	} else {
128 		pte = get_pte(va);
129 	}
130 	db_printf("0x%08lx [%02x] 0x%08x", va, sme, pte);
131 #endif /* SUN3 */
132 #ifdef	_SUN3X_
133 	pte = get_pte(va);
134 	db_printf("0x%08lx 0x%08x", va, pte);
135 #endif /* SUN3X */
136 
137 	pte_print(pte);
138 	db_next = va + NBPG;
139 }
140 
141 #ifdef	_SUN3_
142 static void
143 pte_print(pte)
144 	int pte;
145 {
146 	int t;
147 	static const char *pgt_names[] = {
148 		"MEM", "OBIO", "VMES", "VMEL",
149 	};
150 
151 	if (pte & PG_VALID) {
152 		db_printf(" V");
153 		if (pte & PG_WRITE)
154 			db_printf(" W");
155 		if (pte & PG_SYSTEM)
156 			db_printf(" S");
157 		if (pte & PG_NC)
158 			db_printf(" NC");
159 		if (pte & PG_REF)
160 			db_printf(" Ref");
161 		if (pte & PG_MOD)
162 			db_printf(" Mod");
163 
164 		t = (pte >> PG_TYPE_SHIFT) & 3;
165 		db_printf(" %s", pgt_names[t]);
166 		db_printf(" PA=0x%x\n", PG_PA(pte));
167 	} else
168 		db_printf(" INVALID\n");
169 }
170 #endif	/* SUN3 */
171 
172 #ifdef	_SUN3X_
173 static void
174 pte_print(pte)
175 	int pte;
176 {
177 
178 	if (pte & MMU_SHORT_PTE_DT) {
179 		if (pte & MMU_SHORT_PTE_CI)
180 			db_printf(" CI");
181 		if (pte & MMU_SHORT_PTE_M)
182 			db_printf(" Mod");
183 		if (pte & MMU_SHORT_PTE_USED)
184 			db_printf(" Ref");
185 		if (pte & MMU_SHORT_PTE_WP)
186 			db_printf(" WP");
187 		db_printf(" DT%d\n", pte & MMU_SHORT_PTE_DT);
188 	} else
189 		db_printf(" INVALID\n");
190 }
191 #endif	/* SUN3X */
192