| @@ -1,412 +1,412 @@ | | | @@ -1,412 +1,412 @@ |
1 | /* $NetBSD: ibm4xx_machdep.c,v 1.36 2021/03/30 01:33:50 rin Exp $ */ | | 1 | /* $NetBSD: ibm4xx_machdep.c,v 1.37 2021/03/30 14:33:10 rin Exp $ */ |
2 | /* Original: ibm40x_machdep.c,v 1.3 2005/01/17 17:19:36 shige Exp $ */ | | 2 | /* Original: ibm40x_machdep.c,v 1.3 2005/01/17 17:19:36 shige Exp $ */ |
3 | | | 3 | |
4 | /* | | 4 | /* |
5 | * Copyright 2001, 2002 Wasabi Systems, Inc. | | 5 | * Copyright 2001, 2002 Wasabi Systems, Inc. |
6 | * All rights reserved. | | 6 | * All rights reserved. |
7 | * | | 7 | * |
8 | * Written by Eduardo Horvath and Simon Burge for Wasabi Systems, Inc. | | 8 | * Written by Eduardo Horvath and Simon Burge for Wasabi Systems, Inc. |
9 | * | | 9 | * |
10 | * Redistribution and use in source and binary forms, with or without | | 10 | * Redistribution and use in source and binary forms, with or without |
11 | * modification, are permitted provided that the following conditions | | 11 | * modification, are permitted provided that the following conditions |
12 | * are met: | | 12 | * are met: |
13 | * 1. Redistributions of source code must retain the above copyright | | 13 | * 1. Redistributions of source code must retain the above copyright |
14 | * notice, this list of conditions and the following disclaimer. | | 14 | * notice, this list of conditions and the following disclaimer. |
15 | * 2. Redistributions in binary form must reproduce the above copyright | | 15 | * 2. Redistributions in binary form must reproduce the above copyright |
16 | * notice, this list of conditions and the following disclaimer in the | | 16 | * notice, this list of conditions and the following disclaimer in the |
17 | * documentation and/or other materials provided with the distribution. | | 17 | * documentation and/or other materials provided with the distribution. |
18 | * 3. All advertising materials mentioning features or use of this software | | 18 | * 3. All advertising materials mentioning features or use of this software |
19 | * must display the following acknowledgement: | | 19 | * must display the following acknowledgement: |
20 | * This product includes software developed for the NetBSD Project by | | 20 | * This product includes software developed for the NetBSD Project by |
21 | * Wasabi Systems, Inc. | | 21 | * Wasabi Systems, Inc. |
22 | * 4. The name of Wasabi Systems, Inc. may not be used to endorse | | 22 | * 4. The name of Wasabi Systems, Inc. may not be used to endorse |
23 | * or promote products derived from this software without specific prior | | 23 | * or promote products derived from this software without specific prior |
24 | * written permission. | | 24 | * written permission. |
25 | * | | 25 | * |
26 | * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND | | 26 | * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND |
27 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED | | 27 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
28 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | | 28 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
29 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC | | 29 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC |
30 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | | 30 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
31 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | | 31 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
32 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | | 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 | | 33 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
34 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | | 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 | | 35 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
36 | * POSSIBILITY OF SUCH DAMAGE. | | 36 | * POSSIBILITY OF SUCH DAMAGE. |
37 | */ | | 37 | */ |
38 | | | 38 | |
39 | /* | | 39 | /* |
40 | * Copyright (C) 1995, 1996 Wolfgang Solfrank. | | 40 | * Copyright (C) 1995, 1996 Wolfgang Solfrank. |
41 | * Copyright (C) 1995, 1996 TooLs GmbH. | | 41 | * Copyright (C) 1995, 1996 TooLs GmbH. |
42 | * All rights reserved. | | 42 | * All rights reserved. |
43 | * | | 43 | * |
44 | * Redistribution and use in source and binary forms, with or without | | 44 | * Redistribution and use in source and binary forms, with or without |
45 | * modification, are permitted provided that the following conditions | | 45 | * modification, are permitted provided that the following conditions |
46 | * are met: | | 46 | * are met: |
47 | * 1. Redistributions of source code must retain the above copyright | | 47 | * 1. Redistributions of source code must retain the above copyright |
48 | * notice, this list of conditions and the following disclaimer. | | 48 | * notice, this list of conditions and the following disclaimer. |
49 | * 2. Redistributions in binary form must reproduce the above copyright | | 49 | * 2. Redistributions in binary form must reproduce the above copyright |
50 | * notice, this list of conditions and the following disclaimer in the | | 50 | * notice, this list of conditions and the following disclaimer in the |
51 | * documentation and/or other materials provided with the distribution. | | 51 | * documentation and/or other materials provided with the distribution. |
52 | * 3. All advertising materials mentioning features or use of this software | | 52 | * 3. All advertising materials mentioning features or use of this software |
53 | * must display the following acknowledgement: | | 53 | * must display the following acknowledgement: |
54 | * This product includes software developed by TooLs GmbH. | | 54 | * This product includes software developed by TooLs GmbH. |
55 | * 4. The name of TooLs GmbH may not be used to endorse or promote products | | 55 | * 4. The name of TooLs GmbH may not be used to endorse or promote products |
56 | * derived from this software without specific prior written permission. | | 56 | * derived from this software without specific prior written permission. |
57 | * | | 57 | * |
58 | * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR | | 58 | * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR |
59 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | | 59 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
60 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | | 60 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
61 | * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | | 61 | * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
62 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | | 62 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
63 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; | | 63 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
64 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | | 64 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
65 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR | | 65 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
66 | * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF | | 66 | * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
67 | * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | | 67 | * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
68 | */ | | 68 | */ |
69 | | | 69 | |
70 | #include <sys/cdefs.h> | | 70 | #include <sys/cdefs.h> |
71 | __KERNEL_RCSID(0, "$NetBSD: ibm4xx_machdep.c,v 1.36 2021/03/30 01:33:50 rin Exp $"); | | 71 | __KERNEL_RCSID(0, "$NetBSD: ibm4xx_machdep.c,v 1.37 2021/03/30 14:33:10 rin Exp $"); |
72 | | | 72 | |
73 | #include "ksyms.h" | | 73 | #include "ksyms.h" |
74 | | | 74 | |
75 | #ifdef _KERNEL_OPT | | 75 | #ifdef _KERNEL_OPT |
76 | #include "opt_ddb.h" | | 76 | #include "opt_ddb.h" |
77 | #include "opt_kgdb.h" | | 77 | #include "opt_kgdb.h" |
78 | #include "opt_modular.h" | | 78 | #include "opt_modular.h" |
79 | #endif | | 79 | #endif |
80 | | | 80 | |
81 | #include <sys/param.h> | | 81 | #include <sys/param.h> |
82 | #include <sys/cpu.h> | | 82 | #include <sys/cpu.h> |
83 | #include <sys/ksyms.h> | | 83 | #include <sys/ksyms.h> |
84 | #include <sys/mount.h> | | 84 | #include <sys/mount.h> |
85 | #include <sys/msgbuf.h> | | 85 | #include <sys/msgbuf.h> |
86 | #include <sys/pmf.h> | | 86 | #include <sys/pmf.h> |
87 | #include <sys/proc.h> | | 87 | #include <sys/proc.h> |
88 | #include <sys/reboot.h> | | 88 | #include <sys/reboot.h> |
89 | #include <sys/systm.h> | | 89 | #include <sys/systm.h> |
90 | | | 90 | |
91 | #include <dev/cons.h> | | 91 | #include <dev/cons.h> |
92 | | | 92 | |
93 | #include <uvm/uvm_extern.h> | | 93 | #include <uvm/uvm_extern.h> |
94 | | | 94 | |
95 | #if defined(DDB) | | 95 | #if defined(DDB) |
96 | #include <machine/db_machdep.h> | | 96 | #include <machine/db_machdep.h> |
97 | #include <ddb/db_extern.h> | | 97 | #include <ddb/db_extern.h> |
98 | #endif | | 98 | #endif |
99 | | | 99 | |
100 | #if defined(KGDB) | | 100 | #if defined(KGDB) |
101 | #include <sys/kgdb.h> | | 101 | #include <sys/kgdb.h> |
102 | #endif | | 102 | #endif |
103 | | | 103 | |
104 | #include <machine/powerpc.h> | | 104 | #include <machine/powerpc.h> |
105 | #include <machine/trap.h> | | 105 | #include <machine/trap.h> |
106 | | | 106 | |
107 | #include <powerpc/pcb.h> | | 107 | #include <powerpc/pcb.h> |
108 | #include <powerpc/spr.h> | | 108 | #include <powerpc/spr.h> |
109 | | | 109 | |
110 | #include <powerpc/ibm4xx/cpu.h> | | 110 | #include <powerpc/ibm4xx/cpu.h> |
111 | #include <powerpc/ibm4xx/spr.h> | | 111 | #include <powerpc/ibm4xx/spr.h> |
112 | | | 112 | |
113 | /* | | 113 | /* |
114 | * Global variables used here and there | | 114 | * Global variables used here and there |
115 | */ | | 115 | */ |
116 | paddr_t msgbuf_paddr; | | 116 | paddr_t msgbuf_paddr; |
117 | vaddr_t msgbuf_vaddr; | | 117 | vaddr_t msgbuf_vaddr; |
118 | char msgbuf[MSGBUFSIZE]; | | 118 | char msgbuf[MSGBUFSIZE]; |
119 | | | 119 | |
120 | #if NKSYMS || defined(DDB) || defined(MODULAR) | | 120 | #if NKSYMS || defined(DDB) || defined(MODULAR) |
121 | void *startsym, *endsym; | | 121 | void *startsym, *endsym; |
122 | #endif | | 122 | #endif |
123 | | | 123 | |
124 | #ifdef MODULAR | | 124 | #ifdef MODULAR |
125 | register_t cpu_psluserset = PSL_USERSET; | | 125 | register_t cpu_psluserset = PSL_USERSET; |
126 | register_t cpu_pslusermod = PSL_USERMOD; | | 126 | register_t cpu_pslusermod = PSL_USERMOD; |
127 | register_t cpu_pslusermask = PSL_USERMASK; | | 127 | register_t cpu_pslusermask = PSL_USERMASK; |
128 | #endif | | 128 | #endif |
129 | | | 129 | |
130 | /* | | 130 | /* |
131 | * Trap vectors | | 131 | * Trap vectors |
132 | */ | | 132 | */ |
133 | extern const uint32_t defaulttrap[], defaultsize; | | 133 | extern const uint32_t defaulttrap[], defaultsize; |
134 | extern const uint32_t sctrap[], scsize; | | 134 | extern const uint32_t sctrap[], scsize; |
135 | extern const uint32_t accesstrap[], accesssize; | | 135 | extern const uint32_t accesstrap[], accesssize; |
136 | extern const uint32_t criticaltrap[], criticalsize; | | 136 | extern const uint32_t criticaltrap[], criticalsize; |
137 | extern const uint32_t tlbimiss4xx[], tlbim4size; | | 137 | extern const uint32_t tlbimiss4xx[], tlbim4size; |
138 | extern const uint32_t tlbdmiss4xx[], tlbdm4size; | | 138 | extern const uint32_t tlbdmiss4xx[], tlbdm4size; |
139 | extern const uint32_t pitfitwdog[], pitfitwdogsize; | | 139 | extern const uint32_t pitfitwdog[], pitfitwdogsize; |
140 | extern const uint32_t errata51handler[], errata51size; | | 140 | extern const uint32_t errata51handler[], errata51size; |
141 | #if defined(DDB) | | 141 | #if defined(DDB) |
142 | extern const uint32_t ddblow[], ddbsize; | | 142 | extern const uint32_t ddblow[], ddbsize; |
143 | #endif | | 143 | #endif |
144 | static const struct exc_info trap_table[] = { | | 144 | static const struct exc_info trap_table[] = { |
145 | { EXC_SC, sctrap, (uintptr_t)&scsize }, | | 145 | { EXC_SC, sctrap, (uintptr_t)&scsize }, |
146 | { EXC_ALI, accesstrap, (uintptr_t)&accesssize }, | | 146 | { EXC_ALI, accesstrap, (uintptr_t)&accesssize }, |
147 | { EXC_DSI, accesstrap, (uintptr_t)&accesssize }, | | 147 | { EXC_DSI, accesstrap, (uintptr_t)&accesssize }, |
148 | { EXC_MCHK, criticaltrap, (uintptr_t)&criticalsize }, | | 148 | { EXC_MCHK, criticaltrap, (uintptr_t)&criticalsize }, |
149 | { EXC_ITMISS, tlbimiss4xx, (uintptr_t)&tlbim4size }, | | 149 | { EXC_ITMISS, tlbimiss4xx, (uintptr_t)&tlbim4size }, |
150 | { EXC_DTMISS, tlbdmiss4xx, (uintptr_t)&tlbdm4size }, | | 150 | { EXC_DTMISS, tlbdmiss4xx, (uintptr_t)&tlbdm4size }, |
151 | { EXC_PIT, pitfitwdog, (uintptr_t)&pitfitwdogsize }, | | 151 | { EXC_PIT, pitfitwdog, (uintptr_t)&pitfitwdogsize }, |
152 | { EXC_DEBUG, criticaltrap, (uintptr_t)&criticalsize }, | | 152 | { EXC_DEBUG, criticaltrap, (uintptr_t)&criticalsize }, |
153 | { (EXC_DTMISS|EXC_ALI), | | 153 | { (EXC_DTMISS|EXC_ALI), |
154 | errata51handler, (uintptr_t)&errata51size }, | | 154 | errata51handler, (uintptr_t)&errata51size }, |
155 | #if defined(DDB) | | 155 | #if defined(DDB) |
156 | { EXC_PGM, ddblow, (uintptr_t)&ddbsize }, | | 156 | { EXC_PGM, ddblow, (uintptr_t)&ddbsize }, |
157 | #else | | 157 | #else |
158 | { EXC_PGM, accesstrap, (uintptr_t)&accesssize }, | | 158 | { EXC_PGM, accesstrap, (uintptr_t)&accesssize }, |
159 | #endif | | 159 | #endif |
160 | }; | | 160 | }; |
161 | | | 161 | |
162 | void | | 162 | void |
163 | cpu_reboot(int howto, char *what) | | 163 | cpu_reboot(int howto, char *what) |
164 | { | | 164 | { |
165 | static int syncing; | | 165 | static int syncing; |
166 | static char str[256]; | | 166 | static char str[256]; |
167 | char *ap = str, *ap1 = ap; | | 167 | char *ap = str, *ap1 = ap; |
168 | | | 168 | |
169 | boothowto = howto; | | 169 | boothowto = howto; |
170 | if (!cold && !(howto & RB_NOSYNC) && !syncing) { | | 170 | if (!cold && !(howto & RB_NOSYNC) && !syncing) { |
171 | syncing = 1; | | 171 | syncing = 1; |
172 | vfs_shutdown(); /* sync */ | | 172 | vfs_shutdown(); /* sync */ |
173 | resettodr(); /* set wall clock */ | | 173 | resettodr(); /* set wall clock */ |
174 | } | | 174 | } |
175 | | | 175 | |
176 | splhigh(); | | 176 | splhigh(); |
177 | | | 177 | |
178 | if (!cold && (howto & RB_DUMP)) | | 178 | if (!cold && (howto & RB_DUMP)) |
179 | ibm4xx_dumpsys(); | | 179 | ibm4xx_dumpsys(); |
180 | | | 180 | |
181 | doshutdownhooks(); | | 181 | doshutdownhooks(); |
182 | | | 182 | |
183 | pmf_system_shutdown(boothowto); | | 183 | pmf_system_shutdown(boothowto); |
184 | | | 184 | |
185 | if ((howto & RB_POWERDOWN) == RB_POWERDOWN) { | | 185 | if ((howto & RB_POWERDOWN) == RB_POWERDOWN) { |
186 | /* Power off here if we know how... */ | | 186 | /* Power off here if we know how... */ |
187 | } | | 187 | } |
188 | | | 188 | |
189 | if (howto & RB_HALT) { | | 189 | if (howto & RB_HALT) { |
190 | printf("The operating system has halted.\n" | | 190 | printf("The operating system has halted.\n" |
191 | "Press any key to reboot.\n\n"); | | 191 | "Press any key to reboot.\n\n"); |
192 | | | 192 | |
193 | cnpollc(1); | | 193 | cnpollc(1); |
194 | cngetc(); | | 194 | cngetc(); |
195 | cnpollc(0); | | 195 | cnpollc(0); |
196 | } | | 196 | } |
197 | | | 197 | |
198 | printf("rebooting...\n\n"); | | 198 | printf("rebooting...\n\n"); |
199 | if (what && *what) { | | 199 | if (what && *what) { |
200 | if (strlen(what) > sizeof(str) - 5) | | 200 | if (strlen(what) > sizeof(str) - 5) |
201 | printf("boot string too large, ignored\n"); | | 201 | printf("boot string too large, ignored\n"); |
202 | else { | | 202 | else { |
203 | strcpy(str, what); | | 203 | strcpy(str, what); |
204 | ap1 = ap = str + strlen(str); | | 204 | ap1 = ap = str + strlen(str); |
205 | *ap++ = ' '; | | 205 | *ap++ = ' '; |
206 | } | | 206 | } |
207 | } | | 207 | } |
208 | *ap++ = '-'; | | 208 | *ap++ = '-'; |
209 | if (howto & RB_SINGLE) | | 209 | if (howto & RB_SINGLE) |
210 | *ap++ = 's'; | | 210 | *ap++ = 's'; |
211 | if (howto & RB_KDB) | | 211 | if (howto & RB_KDB) |
212 | *ap++ = 'd'; | | 212 | *ap++ = 'd'; |
213 | *ap++ = '\0'; | | 213 | *ap++ = '\0'; |
214 | if (ap[-2] == '-') | | 214 | if (ap[-2] == '-') |
215 | *ap1 = '\0'; | | 215 | *ap1 = '\0'; |
216 | | | 216 | |
217 | /* flush cache for msgbuf */ | | 217 | /* flush cache for msgbuf */ |
218 | __syncicache((void *)msgbuf_paddr, round_page(MSGBUFSIZE)); | | 218 | __syncicache((void *)msgbuf_paddr, round_page(MSGBUFSIZE)); |
219 | | | 219 | |
220 | ppc4xx_reset(); | | 220 | ppc4xx_reset(); |
221 | | | 221 | |
222 | printf("ppc4xx_reset() failed!\n"); | | 222 | printf("ppc4xx_reset() failed!\n"); |
223 | | | 223 | |
224 | while (1 /* CONSTCOND */) { | | 224 | for (;;) { |
225 | #if defined(DDB) | | 225 | #if defined(DDB) |
226 | Debugger(); | | 226 | Debugger(); |
227 | #elif defined(KGDB) | | 227 | #elif defined(KGDB) |
228 | kgdb_connect(1); | | 228 | kgdb_connect(1); |
229 | #else | | 229 | #else |
230 | continue; | | 230 | continue; |
231 | #endif | | 231 | #endif |
232 | } | | 232 | } |
233 | } | | 233 | } |
234 | | | 234 | |
235 | /* | | 235 | /* |
236 | * Install a trap vector. We cannot use memcpy because the | | 236 | * Install a trap vector. We cannot use memcpy because the |
237 | * destination may be zero. | | 237 | * destination may be zero. |
238 | */ | | 238 | */ |
239 | static void | | 239 | static void |
240 | trap_copy(const uint32_t *src, vaddr_t dest, size_t len) | | 240 | trap_copy(const uint32_t *src, vaddr_t dest, size_t len) |
241 | { | | 241 | { |
242 | uint32_t *dest_p = (void *)dest; | | 242 | uint32_t *dest_p = (void *)dest; |
243 | | | 243 | |
244 | while (len > 0) { | | 244 | while (len > 0) { |
245 | *dest_p++ = *src++; | | 245 | *dest_p++ = *src++; |
246 | len -= sizeof(uint32_t); | | 246 | len -= sizeof(uint32_t); |
247 | } | | 247 | } |
248 | } | | 248 | } |
249 | | | 249 | |
250 | /* | | 250 | /* |
251 | * ibm4xx_init: | | 251 | * ibm4xx_init: |
252 | */ | | 252 | */ |
253 | void | | 253 | void |
254 | ibm4xx_init(vaddr_t startkernel, vaddr_t endkernel, void (*handler)(void)) | | 254 | ibm4xx_init(vaddr_t startkernel, vaddr_t endkernel, void (*handler)(void)) |
255 | { | | 255 | { |
256 | /* Initialize cache info for memcpy, etc. */ | | 256 | /* Initialize cache info for memcpy, etc. */ |
257 | cpu_probe_cache(); | | 257 | cpu_probe_cache(); |
258 | | | 258 | |
259 | /* | | 259 | /* |
260 | * Initialize current pcb and pmap pointers. | | 260 | * Initialize current pcb and pmap pointers. |
261 | */ | | 261 | */ |
262 | KASSERT(curcpu() == &cpu_info[0]); | | 262 | KASSERT(curcpu() == &cpu_info[0]); |
263 | KASSERT(lwp0.l_cpu == curcpu()); | | 263 | KASSERT(lwp0.l_cpu == curcpu()); |
264 | KASSERT(curlwp == &lwp0); | | 264 | KASSERT(curlwp == &lwp0); |
265 | | | 265 | |
266 | curpcb = lwp_getpcb(curlwp); | | 266 | curpcb = lwp_getpcb(curlwp); |
267 | memset(curpcb, 0, sizeof(struct pcb)); | | 267 | memset(curpcb, 0, sizeof(struct pcb)); |
268 | | | 268 | |
269 | curpcb->pcb_pm = pmap_kernel(); | | 269 | curpcb->pcb_pm = pmap_kernel(); |
270 | | | 270 | |
271 | for (uintptr_t exc = EXC_RSVD; exc <= EXC_LAST; exc += 0x100) { | | 271 | for (uintptr_t exc = EXC_RSVD; exc <= EXC_LAST; exc += 0x100) { |
272 | trap_copy(defaulttrap, exc, (uintptr_t)&defaultsize); | | 272 | trap_copy(defaulttrap, exc, (uintptr_t)&defaultsize); |
273 | } | | 273 | } |
274 | | | 274 | |
275 | for (size_t i = 0; i < __arraycount(trap_table); i++) { | | 275 | for (size_t i = 0; i < __arraycount(trap_table); i++) { |
276 | KASSERT(trap_table[i].exc_size <= 0x100); | | 276 | KASSERT(trap_table[i].exc_size <= 0x100); |
277 | trap_copy(trap_table[i].exc_addr, trap_table[i].exc_vector, | | 277 | trap_copy(trap_table[i].exc_addr, trap_table[i].exc_vector, |
278 | trap_table[i].exc_size); | | 278 | trap_table[i].exc_size); |
279 | } | | 279 | } |
280 | | | 280 | |
281 | __syncicache((void *)EXC_RST, EXC_LAST - EXC_RST + 0x100); | | 281 | __syncicache((void *)EXC_RST, EXC_LAST - EXC_RST + 0x100); |
282 | | | 282 | |
283 | mtspr(SPR_EVPR, 0); /* Set Exception vector base */ | | 283 | mtspr(SPR_EVPR, 0); /* Set Exception vector base */ |
284 | | | 284 | |
285 | /* Handle trap instruction as PGM exception */ | | 285 | /* Handle trap instruction as PGM exception */ |
286 | mtspr(SPR_DBCR0, mfspr(SPR_DBCR0) & ~DBCR0_TDE); | | 286 | mtspr(SPR_DBCR0, mfspr(SPR_DBCR0) & ~DBCR0_TDE); |
287 | | | 287 | |
288 | /* | | 288 | /* |
289 | * external interrupt handler install | | 289 | * external interrupt handler install |
290 | */ | | 290 | */ |
291 | if (handler) | | 291 | if (handler) |
292 | ibm4xx_install_extint(handler); | | 292 | ibm4xx_install_extint(handler); |
293 | | | 293 | |
294 | /* | | 294 | /* |
295 | * Now enable translation (and machine checks/recoverable interrupts). | | 295 | * Now enable translation (and machine checks/recoverable interrupts). |
296 | */ | | 296 | */ |
297 | __asm volatile ("mfmsr %0; ori %0,%0,%1; mtmsr %0; isync" | | 297 | __asm volatile ("mfmsr %0; ori %0,%0,%1; mtmsr %0; isync" |
298 | : : "r"(0), "K"(PSL_IR|PSL_DR)); | | 298 | : : "r"(0), "K"(PSL_IR|PSL_DR)); |
299 | /* XXXX PSL_ME - With ME set kernel gets stuck... */ | | 299 | /* XXXX PSL_ME - With ME set kernel gets stuck... */ |
300 | | | 300 | |
301 | /* | | 301 | /* |
302 | * turn on console after enable translation | | 302 | * turn on console after enable translation |
303 | */ | | 303 | */ |
304 | consinit(); | | 304 | consinit(); |
305 | | | 305 | |
306 | uvm_md_init(); | | 306 | uvm_md_init(); |
307 | | | 307 | |
308 | /* | | 308 | /* |
309 | * Initialize pmap module. | | 309 | * Initialize pmap module. |
310 | */ | | 310 | */ |
311 | pmap_bootstrap(startkernel, endkernel); | | 311 | pmap_bootstrap(startkernel, endkernel); |
312 | | | 312 | |
313 | /* | | 313 | /* |
314 | * Let's take all the indirect calls via our stubs and patch | | 314 | * Let's take all the indirect calls via our stubs and patch |
315 | * them to be direct calls. | | 315 | * them to be direct calls. |
316 | */ | | 316 | */ |
317 | cpu_fixup_stubs(); | | 317 | cpu_fixup_stubs(); |
318 | | | 318 | |
319 | #if NKSYMS || defined(DDB) || defined(MODULAR) | | 319 | #if NKSYMS || defined(DDB) || defined(MODULAR) |
320 | ksyms_addsyms_elf((uintptr_t)endsym - (uintptr_t)startsym, | | 320 | ksyms_addsyms_elf((uintptr_t)endsym - (uintptr_t)startsym, |
321 | startsym, endsym); | | 321 | startsym, endsym); |
322 | #endif | | 322 | #endif |
323 | } | | 323 | } |
324 | | | 324 | |
325 | void | | 325 | void |
326 | ibm4xx_install_extint(void (*handler)(void)) | | 326 | ibm4xx_install_extint(void (*handler)(void)) |
327 | { | | 327 | { |
328 | extern int extint, extsize; | | 328 | extern int extint, extsize; |
329 | extern u_long extint_call; | | 329 | extern u_long extint_call; |
330 | u_long offset = (u_long)handler - (u_long)&extint_call; | | 330 | u_long offset = (u_long)handler - (u_long)&extint_call; |
331 | int msr; | | 331 | int msr; |
332 | | | 332 | |
333 | #ifdef DIAGNOSTIC | | 333 | #ifdef DIAGNOSTIC |
334 | if (offset > 0x1ffffff) | | 334 | if (offset > 0x1ffffff) |
335 | panic("install_extint: too far away"); | | 335 | panic("install_extint: too far away"); |
336 | #endif | | 336 | #endif |
337 | __asm volatile ("mfmsr %0; wrteei 0" : "=r"(msr)); | | 337 | __asm volatile ("mfmsr %0; wrteei 0" : "=r"(msr)); |
338 | extint_call = (extint_call & 0xfc000003) | offset; | | 338 | extint_call = (extint_call & 0xfc000003) | offset; |
339 | memcpy((void *)EXC_EXI, &extint, (size_t)&extsize); | | 339 | memcpy((void *)EXC_EXI, &extint, (size_t)&extsize); |
340 | __syncicache((void *)&extint_call, sizeof extint_call); | | 340 | __syncicache((void *)&extint_call, sizeof extint_call); |
341 | __syncicache((void *)EXC_EXI, (int)&extsize); | | 341 | __syncicache((void *)EXC_EXI, (int)&extsize); |
342 | __asm volatile ("mtmsr %0" :: "r"(msr)); | | 342 | __asm volatile ("mtmsr %0" :: "r"(msr)); |
343 | } | | 343 | } |
344 | | | 344 | |
345 | /* | | 345 | /* |
346 | * ibm4xx_cpu_startup: | | 346 | * ibm4xx_cpu_startup: |
347 | * Machine dependent startup code. | | 347 | * Machine dependent startup code. |
348 | */ | | 348 | */ |
349 | void | | 349 | void |
350 | ibm4xx_cpu_startup(const char *model) | | 350 | ibm4xx_cpu_startup(const char *model) |
351 | { | | 351 | { |
352 | vaddr_t minaddr, maxaddr; | | 352 | vaddr_t minaddr, maxaddr; |
353 | char pbuf[9]; | | 353 | char pbuf[9]; |
354 | | | 354 | |
355 | KASSERT(curcpu() != NULL); | | 355 | KASSERT(curcpu() != NULL); |
356 | KASSERT(lwp0.l_cpu != NULL); | | 356 | KASSERT(lwp0.l_cpu != NULL); |
357 | KASSERT(curcpu()->ci_intstk != 0); | | 357 | KASSERT(curcpu()->ci_intstk != 0); |
358 | KASSERT(curcpu()->ci_idepth == -1); | | 358 | KASSERT(curcpu()->ci_idepth == -1); |
359 | | | 359 | |
360 | /* | | 360 | /* |
361 | * Initialize error message buffer (at end of core). | | 361 | * Initialize error message buffer (at end of core). |
362 | */ | | 362 | */ |
363 | #if 0 /* For some reason this fails... --Artem | | 363 | #if 0 /* For some reason this fails... --Artem |
364 | * Besides, do we really have to put it at the end of core? | | 364 | * Besides, do we really have to put it at the end of core? |
365 | * Let's use static buffer for now | | 365 | * Let's use static buffer for now |
366 | */ | | 366 | */ |
367 | if (!(msgbuf_vaddr = uvm_km_alloc(kernel_map, round_page(MSGBUFSIZE), | | 367 | if (!(msgbuf_vaddr = uvm_km_alloc(kernel_map, round_page(MSGBUFSIZE), |
368 | 0, UVM_KMF_VAONLY))) | | 368 | 0, UVM_KMF_VAONLY))) |
369 | panic("startup: no room for message buffer"); | | 369 | panic("startup: no room for message buffer"); |
370 | for (i = 0; i < btoc(MSGBUFSIZE); i++) | | 370 | for (i = 0; i < btoc(MSGBUFSIZE); i++) |
371 | pmap_kenter_pa(msgbuf_vaddr + i * PAGE_SIZE, | | 371 | pmap_kenter_pa(msgbuf_vaddr + i * PAGE_SIZE, |
372 | msgbuf_paddr + i * PAGE_SIZE, | | 372 | msgbuf_paddr + i * PAGE_SIZE, |
373 | VM_PROT_READ|VM_PROT_WRITE, 0); | | 373 | VM_PROT_READ|VM_PROT_WRITE, 0); |
374 | initmsgbuf((void *)msgbuf_vaddr, round_page(MSGBUFSIZE)); | | 374 | initmsgbuf((void *)msgbuf_vaddr, round_page(MSGBUFSIZE)); |
375 | #else | | 375 | #else |
376 | initmsgbuf((void *)msgbuf, round_page(MSGBUFSIZE)); | | 376 | initmsgbuf((void *)msgbuf, round_page(MSGBUFSIZE)); |
377 | #endif | | 377 | #endif |
378 | | | 378 | |
379 | printf("%s%s", copyright, version); | | 379 | printf("%s%s", copyright, version); |
380 | if (model != NULL) | | 380 | if (model != NULL) |
381 | printf("Model: %s\n", model); | | 381 | printf("Model: %s\n", model); |
382 | | | 382 | |
383 | format_bytes(pbuf, sizeof(pbuf), ctob(physmem)); | | 383 | format_bytes(pbuf, sizeof(pbuf), ctob(physmem)); |
384 | printf("total memory = %s\n", pbuf); | | 384 | printf("total memory = %s\n", pbuf); |
385 | | | 385 | |
386 | minaddr = 0; | | 386 | minaddr = 0; |
387 | /* | | 387 | /* |
388 | * Allocate a submap for physio | | 388 | * Allocate a submap for physio |
389 | */ | | 389 | */ |
390 | phys_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr, | | 390 | phys_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr, |
391 | VM_PHYS_SIZE, 0, false, NULL); | | 391 | VM_PHYS_SIZE, 0, false, NULL); |
392 | | | 392 | |
393 | /* | | 393 | /* |
394 | * No need to allocate an mbuf cluster submap. Mbuf clusters | | 394 | * No need to allocate an mbuf cluster submap. Mbuf clusters |
395 | * are allocated via the pool allocator, and we use direct-mapped | | 395 | * are allocated via the pool allocator, and we use direct-mapped |
396 | * pool pages. | | 396 | * pool pages. |
397 | */ | | 397 | */ |
398 | | | 398 | |
399 | format_bytes(pbuf, sizeof(pbuf), ptoa(uvm_availmem(false))); | | 399 | format_bytes(pbuf, sizeof(pbuf), ptoa(uvm_availmem(false))); |
400 | printf("avail memory = %s\n", pbuf); | | 400 | printf("avail memory = %s\n", pbuf); |
401 | } | | 401 | } |
402 | | | 402 | |
403 | /* | | 403 | /* |
404 | * ibm4xx_dumpsys: | | 404 | * ibm4xx_dumpsys: |
405 | * Crash dump handling. | | 405 | * Crash dump handling. |
406 | */ | | 406 | */ |
407 | void | | 407 | void |
408 | ibm4xx_dumpsys(void) | | 408 | ibm4xx_dumpsys(void) |
409 | { | | 409 | { |
410 | | | 410 | |
411 | printf("dumpsys: TBD\n"); | | 411 | printf("dumpsys: TBD\n"); |
412 | } | | 412 | } |