1 /* $NetBSD: aarch64_reboot.c,v 1.6 2025/12/19 13:03:51 nia 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 * 108 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 109 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 110 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 111 * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTERS BE LIABLE FOR ANY DIRECT, 112 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 113 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 114 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 115 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 116 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 117 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 118 * SUCH DAMAGE. 119 */ 120 121 #include <sys/cdefs.h> 122 __KERNEL_RCSID(0, "$NetBSD: aarch64_reboot.c,v 1.6 2025/12/19 13:03:51 nia Exp $"); 123 124 #include <sys/param.h> 125 #include <sys/device.h> 126 #include <sys/kernel.h> 127 #include <sys/reboot.h> 128 #include <sys/mount.h> 129 130 #include <dev/cons.h> 131 #include <uvm/uvm_extern.h> 132 133 #include <aarch64/machdep.h> 134 #include <aarch64/armreg.h> 135 #include <aarch64/locore.h> 136 137 #include <arm/cpufunc.h> 138 139 void (*cpu_reset_address0)(void); 140 void (*cpu_reset_address)(void); 141 void (*cpu_powerdown_address)(void); 142 143 static void 144 docpureset(int howto) 145 { 146 if ((howto & RB_POWERDOWN) == RB_POWERDOWN) { 147 if (cpu_powerdown_address) { 148 (*cpu_powerdown_address)(); 149 printf("WARNING: powerdown failed\r\n"); 150 } else { 151 printf("WARNING: powerdown not supported\r\n"); 152 } 153 } 154 155 if (howto & RB_HALT) { 156 printf("The operating system has halted.\r\n"); 157 printf("Please press any key to reboot.\r\n"); 158 cnpollc(true); /* for proper keyboard command handling */ 159 /* If there is no keyboard, cngetc() returns 0, so loop */ 160 while (cngetc() == 0) 161 delay(100000); 162 cnpollc(false); 163 } 164 165 printf("rebooting...\r\n"); 166 167 /* make sure to write to memory (msgbuf) */ 168 aarch64_dcache_wb_all(); 169 170 /* console output delay */ 171 delay(1000); 172 173 if (cpu_reset_address != NULL) 174 (*cpu_reset_address)(); 175 if (cpu_reset_address0 != NULL) 176 (*cpu_reset_address0)(); 177 178 for (;;) 179 asm("wfi"); 180 181 /*NOTREACHED*/ 182 } 183 184 /* Sync the discs, unmount the filesystems, and adjust the todr */ 185 static void 186 bootsync(void) 187 { 188 static bool bootsyncdone = false; 189 190 if (bootsyncdone) 191 return; 192 bootsyncdone = true; 193 194 /* Make sure we can still manage to do things */ 195 if ((reg_daif_read() & DAIF_I) != 0) { 196 /* 197 * If we get here then boot has been called without RB_NOSYNC 198 * and interrupts were disabled. This means the boot() call 199 * did not come from a user process e.g. shutdown, but must 200 * have come from somewhere in the kernel. 201 */ 202 ENABLE_INTERRUPT(); 203 printf("Warning IRQ's disabled during boot()\n"); 204 } 205 206 vfs_shutdown(); 207 } 208 209 void 210 cpu_reboot(int howto, char *bootstr) 211 { 212 213 /* 214 * If we are still cold then hit the air brakes 215 * and crash to earth fast 216 */ 217 if (cold) { 218 doshutdownhooks(); 219 docpureset(RB_HALT | howto); 220 } 221 222 /* 223 * If RB_NOSYNC was not specified sync the discs. 224 * Note: Unless cold is set to 1 here, syslogd will die during the 225 * unmount. It looks like syslogd is getting woken up only to find 226 * that it cannot page part of the binary in as the filesystem has 227 * been unmounted. 228 */ 229 if ((howto & RB_NOSYNC) == 0) 230 bootsync(); 231 232 /* Say NO to interrupts for the duration of the dump */ 233 int s = splhigh(); 234 235 /* Do a dump if requested. */ 236 if ((howto & (RB_DUMP | RB_HALT)) == RB_DUMP) 237 dumpsys(); 238 239 splx(s); 240 241 pmf_system_shutdown(boothowto); 242 243 /* Say NO to interrupts for good */ 244 splhigh(); 245 246 /* Run any shutdown hooks */ 247 doshutdownhooks(); 248 249 /* Make sure IRQ's are disabled */ 250 DISABLE_INTERRUPT(); 251 252 docpureset(howto); 253 __unreachable(); 254 } 255
Indexes created Sun Oct 25 00:26:45 UTC 2026