1 /* $NetBSD: arm32_reboot.c,v 1.13 2020/06/20 07:10:36 skrll Exp $ */
2
3 /*
4 * Copyright (c) 2002, 2003, 2005 Genetec Corporation. All rights reserved.
5 * Written by Hiroyuki Bessho for Genetec Corporation.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. The name of Genetec Corporation may not be used to endorse or
16 * promote products derived from this software without specific prior
17 * written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY GENETEC CORPORATION ``AS IS'' AND
20 * 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 GENETEC CORPORATION
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 * Copyright (c) 2001 Wasabi Systems, Inc.
32 * All rights reserved.
33 *
34 * Written by Jason R. Thorpe for Wasabi Systems, Inc.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in the
43 * documentation and/or other materials provided with the distribution.
44 * 3. All advertising materials mentioning features or use of this software
45 * must display the following acknowledgement:
46 * This product includes software developed for the NetBSD Project by
47 * Wasabi Systems, Inc.
48 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
49 * or promote products derived from this software without specific prior
50 * written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
54 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
55 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
56 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
57 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
58 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
59 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
60 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
61 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
62 * POSSIBILITY OF SUCH DAMAGE.
63 *
64 * Copyright (c) 1997,1998 Mark Brinicombe.
65 * Copyright (c) 1997,1998 Causality Limited.
66 * All rights reserved.
67 *
68 * Redistribution and use in source and binary forms, with or without
69 * modification, are permitted provided that the following conditions
70 * are met:
71 * 1. Redistributions of source code must retain the above copyright
72 * notice, this list of conditions and the following disclaimer.
73 * 2. Redistributions in binary form must reproduce the above copyright
74 * notice, this list of conditions and the following disclaimer in the
75 * documentation and/or other materials provided with the distribution.
76 * 3. All advertising materials mentioning features or use of this software
77 * must display the following acknowledgement:
78 * This product includes software developed by Mark Brinicombe
79 * for the NetBSD Project.
80 * 4. The name of the company nor the name of the author may be used to
81 * endorse or promote products derived from this software without specific
82 * prior written permission.
83 *
84 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
85 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
86 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
87 * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
88 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
89 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
90 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
91 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
92 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
93 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
94 * SUCH DAMAGE.
95 *
96 * Copyright (c) 2007 Microsoft
97 * All rights reserved.
98 *
99 * Redistribution and use in source and binary forms, with or without
100 * modification, are permitted provided that the following conditions
101 * are met:
102 * 1. Redistributions of source code must retain the above copyright
103 * notice, this list of conditions and the following disclaimer.
104 * 2. Redistributions in binary form must reproduce the above copyright
105 * notice, this list of conditions and the following disclaimer in the
106 * documentation and/or other materials provided with the distribution.
107 * 3. All advertising materials mentioning features or use of this software
108 * must display the following acknowledgement:
109 * This product includes software developed by Microsoft
110 *
111 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
112 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
113 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
114 * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTERS BE LIABLE FOR ANY DIRECT,
115 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
116 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
117 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
118 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
119 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
120 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
121 * SUCH DAMAGE.
122 */
123
124 #include <sys/cdefs.h>
125 __KERNEL_RCSID(0, "$NetBSD: arm32_reboot.c,v 1.13 2020/06/20 07:10:36 skrll Exp $");
126
127 #include <sys/param.h>
128
129 #include <dev/cons.h>
130 #include <sys/device.h>
131 #include <sys/kernel.h>
132 #include <sys/reboot.h>
133
134 #include <uvm/uvm_extern.h>
135
136 #include <arm/locore.h>
137 #include <arm/arm32/machdep.h>
138
139 void (*cpu_powerdown_address)(void);
140
141 static void
docpureset(int howto)142 docpureset(int howto)
143 {
144 if ((howto & RB_POWERDOWN) == RB_POWERDOWN) {
145 if (cpu_powerdown_address) {
146 cpu_powerdown_address();
147 printf("WARNING: powerdown failed\r\n");
148 } else {
149 printf("WARNING: powerdown not supported\r\n");
150 }
151 }
152
153 if (howto & RB_HALT) {
154 printf("The operating system has halted.\r\n");
155 printf("Please press any key to reboot.\r\n");
156 cnpollc(true); /* for proper keyboard command handling */
157 /* If there is no keyboard, cngetc() returns 0, so loop */
158 while (cngetc() == 0)
159 delay(100000);
160 cnpollc(false);
161 }
162
163 printf("rebooting...\r\n");
164 if (cpu_reset_address)
165 (*cpu_reset_address)();
166 cpu_reset();
167 /*NOTREACHED*/
168 }
169
170 void
cpu_reboot(int howto,char * bootstr)171 cpu_reboot(int howto, char *bootstr)
172 {
173
174 /*
175 * If we are still cold then hit the air brakes
176 * and crash to earth fast
177 */
178 if (cold) {
179 doshutdownhooks();
180 docpureset(RB_HALT | howto);
181 }
182
183 /*
184 * If RB_NOSYNC was not specified sync the discs.
185 * Note: Unless cold is set to 1 here, syslogd will die during the
186 * unmount. It looks like syslogd is getting woken up only to find
187 * that it cannot page part of the binary in as the filesystem has
188 * been unmounted.
189 */
190 if (!(howto & RB_NOSYNC))
191 bootsync();
192
193 /* Say NO to interrupts for the duration of the dump */
194 int s = splhigh();
195
196 /* Do a dump if requested. */
197 if ((howto & (RB_DUMP | RB_HALT)) == RB_DUMP)
198 dumpsys();
199
200 splx(s);
201
202 pmf_system_shutdown(boothowto);
203
204 /* Say NO to interrupts for good */
205 splhigh();
206
207 /* Run any shutdown hooks */
208 doshutdownhooks();
209
210 /* Make sure IRQ's are disabled */
211 IRQdisable;
212
213 docpureset(howto);
214 __unreachable();
215 }
216