stubs.c revision 1.5.2.5 1 1.5.2.5 nathanw /* $NetBSD: stubs.c,v 1.5.2.5 2002/04/01 07:39:09 nathanw Exp $ */
2 1.5.2.2 nathanw
3 1.5.2.2 nathanw /*
4 1.5.2.2 nathanw * Copyright (c) 1994-1998 Mark Brinicombe.
5 1.5.2.2 nathanw * Copyright (c) 1994 Brini.
6 1.5.2.2 nathanw * All rights reserved.
7 1.5.2.2 nathanw *
8 1.5.2.2 nathanw * This code is derived from software written for Brini by Mark Brinicombe
9 1.5.2.2 nathanw *
10 1.5.2.2 nathanw * Redistribution and use in source and binary forms, with or without
11 1.5.2.2 nathanw * modification, are permitted provided that the following conditions
12 1.5.2.2 nathanw * are met:
13 1.5.2.2 nathanw * 1. Redistributions of source code must retain the above copyright
14 1.5.2.2 nathanw * notice, this list of conditions and the following disclaimer.
15 1.5.2.2 nathanw * 2. Redistributions in binary form must reproduce the above copyright
16 1.5.2.2 nathanw * notice, this list of conditions and the following disclaimer in the
17 1.5.2.2 nathanw * documentation and/or other materials provided with the distribution.
18 1.5.2.2 nathanw * 3. All advertising materials mentioning features or use of this software
19 1.5.2.2 nathanw * must display the following acknowledgement:
20 1.5.2.2 nathanw * This product includes software developed by Mark Brinicombe
21 1.5.2.2 nathanw * for the NetBSD Project.
22 1.5.2.2 nathanw * 4. The name of the company nor the name of the author may be used to
23 1.5.2.2 nathanw * endorse or promote products derived from this software without specific
24 1.5.2.2 nathanw * prior written permission.
25 1.5.2.2 nathanw *
26 1.5.2.2 nathanw * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
27 1.5.2.2 nathanw * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
28 1.5.2.2 nathanw * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
29 1.5.2.2 nathanw * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
30 1.5.2.2 nathanw * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
31 1.5.2.2 nathanw * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
32 1.5.2.2 nathanw * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 1.5.2.2 nathanw * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 1.5.2.2 nathanw * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 1.5.2.2 nathanw * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 1.5.2.2 nathanw * SUCH DAMAGE.
37 1.5.2.2 nathanw *
38 1.5.2.2 nathanw * Routines that are temporary or do not have a home yet.
39 1.5.2.2 nathanw *
40 1.5.2.2 nathanw * Created : 17/09/94
41 1.5.2.2 nathanw */
42 1.5.2.2 nathanw
43 1.5.2.2 nathanw #include <sys/param.h>
44 1.5.2.2 nathanw #include <sys/systm.h>
45 1.5.2.2 nathanw #include <sys/errno.h>
46 1.5.2.2 nathanw #include <sys/proc.h>
47 1.5.2.2 nathanw #include <sys/conf.h>
48 1.5.2.2 nathanw #include <sys/msgbuf.h>
49 1.5.2.2 nathanw #include <uvm/uvm_extern.h>
50 1.5.2.2 nathanw #include <machine/cpu.h>
51 1.5.2.2 nathanw #include <machine/intr.h>
52 1.5.2.2 nathanw #include <machine/bootconfig.h>
53 1.5.2.2 nathanw #include <machine/pcb.h>
54 1.5.2.3 nathanw #include <arm/arm32/machdep.h>
55 1.5.2.2 nathanw
56 1.5.2.2 nathanw extern dev_t dumpdev;
57 1.5.2.2 nathanw extern BootConfig bootconfig;
58 1.5.2.2 nathanw
59 1.5.2.2 nathanw /*
60 1.5.2.2 nathanw * These variables are needed by /sbin/savecore
61 1.5.2.2 nathanw */
62 1.5.2.5 nathanw u_int32_t dumpmag = 0x8fca0101; /* magic number */
63 1.5.2.2 nathanw int dumpsize = 0; /* pages */
64 1.5.2.2 nathanw long dumplo = 0; /* blocks */
65 1.5.2.2 nathanw
66 1.5.2.2 nathanw struct pcb dumppcb;
67 1.5.2.2 nathanw
68 1.5.2.2 nathanw /*
69 1.5.2.2 nathanw * This is called by main to set dumplo and dumpsize.
70 1.5.2.2 nathanw * Dumps always skip the first CLBYTES of disk space
71 1.5.2.2 nathanw * in case there might be a disk label stored there.
72 1.5.2.2 nathanw * If there is extra space, put dump at the end to
73 1.5.2.2 nathanw * reduce the chance that swapping trashes it.
74 1.5.2.2 nathanw */
75 1.5.2.2 nathanw
76 1.5.2.2 nathanw void
77 1.5.2.2 nathanw cpu_dumpconf()
78 1.5.2.2 nathanw {
79 1.5.2.2 nathanw int nblks; /* size of dump area */
80 1.5.2.2 nathanw int maj;
81 1.5.2.2 nathanw
82 1.5.2.2 nathanw if (dumpdev == NODEV)
83 1.5.2.2 nathanw return;
84 1.5.2.2 nathanw maj = major(dumpdev);
85 1.5.2.2 nathanw if (maj < 0 || maj >= nblkdev)
86 1.5.2.2 nathanw panic("dumpconf: bad dumpdev=0x%x", dumpdev);
87 1.5.2.2 nathanw if (bdevsw[maj].d_psize == NULL)
88 1.5.2.2 nathanw return;
89 1.5.2.2 nathanw nblks = (*bdevsw[maj].d_psize)(dumpdev);
90 1.5.2.2 nathanw if (nblks <= ctod(1))
91 1.5.2.2 nathanw return;
92 1.5.2.2 nathanw
93 1.5.2.2 nathanw dumpsize = physmem;
94 1.5.2.2 nathanw
95 1.5.2.2 nathanw /* Always skip the first CLBYTES, in case there is a label there. */
96 1.5.2.2 nathanw if (dumplo < ctod(1))
97 1.5.2.2 nathanw dumplo = ctod(1);
98 1.5.2.2 nathanw
99 1.5.2.2 nathanw /* Put dump at end of partition, and make it fit. */
100 1.5.2.2 nathanw if (dumpsize > dtoc(nblks - dumplo))
101 1.5.2.2 nathanw dumpsize = dtoc(nblks - dumplo);
102 1.5.2.2 nathanw if (dumplo < nblks - ctod(dumpsize))
103 1.5.2.2 nathanw dumplo = nblks - ctod(dumpsize);
104 1.5.2.2 nathanw }
105 1.5.2.2 nathanw
106 1.5.2.2 nathanw /* This should be moved to machdep.c */
107 1.5.2.2 nathanw
108 1.5.2.5 nathanw extern char *memhook; /* XXX */
109 1.5.2.2 nathanw
110 1.5.2.2 nathanw /*
111 1.5.2.2 nathanw * Doadump comes here after turning off memory management and
112 1.5.2.2 nathanw * getting on the dump stack, either when called above, or by
113 1.5.2.2 nathanw * the auto-restart code.
114 1.5.2.2 nathanw */
115 1.5.2.2 nathanw
116 1.5.2.2 nathanw void
117 1.5.2.2 nathanw dumpsys()
118 1.5.2.2 nathanw {
119 1.5.2.2 nathanw daddr_t blkno;
120 1.5.2.2 nathanw int psize;
121 1.5.2.2 nathanw int error;
122 1.5.2.2 nathanw int addr;
123 1.5.2.2 nathanw int block;
124 1.5.2.2 nathanw int len;
125 1.5.2.2 nathanw vaddr_t dumpspace;
126 1.5.2.2 nathanw
127 1.5.2.2 nathanw /* Save registers. */
128 1.5.2.2 nathanw savectx(&dumppcb);
129 1.5.2.2 nathanw
130 1.5.2.2 nathanw if (dumpdev == NODEV)
131 1.5.2.2 nathanw return;
132 1.5.2.2 nathanw if (dumpsize == 0) {
133 1.5.2.2 nathanw cpu_dumpconf();
134 1.5.2.2 nathanw if (dumpsize == 0)
135 1.5.2.2 nathanw return;
136 1.5.2.2 nathanw }
137 1.5.2.2 nathanw if (dumplo <= 0) {
138 1.5.2.2 nathanw printf("\ndump to dev %u,%u not possible\n", major(dumpdev),
139 1.5.2.2 nathanw minor(dumpdev));
140 1.5.2.2 nathanw return;
141 1.5.2.2 nathanw }
142 1.5.2.2 nathanw printf("\ndumping to dev %u,%u offset %ld\n", major(dumpdev),
143 1.5.2.2 nathanw minor(dumpdev), dumplo);
144 1.5.2.2 nathanw
145 1.5.2.2 nathanw blkno = dumplo;
146 1.5.2.5 nathanw dumpspace = (vaddr_t) memhook;
147 1.5.2.2 nathanw
148 1.5.2.2 nathanw psize = (*bdevsw[major(dumpdev)].d_psize)(dumpdev);
149 1.5.2.2 nathanw printf("dump ");
150 1.5.2.2 nathanw if (psize == -1) {
151 1.5.2.2 nathanw printf("area unavailable\n");
152 1.5.2.2 nathanw return;
153 1.5.2.2 nathanw }
154 1.5.2.2 nathanw
155 1.5.2.2 nathanw error = 0;
156 1.5.2.2 nathanw len = 0;
157 1.5.2.2 nathanw
158 1.5.2.2 nathanw for (block = 0; block < bootconfig.dramblocks && error == 0; ++block) {
159 1.5.2.2 nathanw addr = bootconfig.dram[block].address;
160 1.5.2.2 nathanw for (;addr < (bootconfig.dram[block].address
161 1.5.2.2 nathanw + (bootconfig.dram[block].pages * NBPG)); addr += NBPG) {
162 1.5.2.2 nathanw if ((len % (1024*1024)) == 0)
163 1.5.2.2 nathanw printf("%d ", len / (1024*1024));
164 1.5.2.2 nathanw pmap_map(dumpspace, addr, addr + NBPG, VM_PROT_READ);
165 1.5.2.2 nathanw error = (*bdevsw[major(dumpdev)].d_dump)(dumpdev,
166 1.5.2.2 nathanw blkno, (caddr_t) dumpspace, NBPG);
167 1.5.2.2 nathanw if (error) break;
168 1.5.2.2 nathanw blkno += btodb(NBPG);
169 1.5.2.2 nathanw len += NBPG;
170 1.5.2.2 nathanw }
171 1.5.2.2 nathanw }
172 1.5.2.2 nathanw
173 1.5.2.2 nathanw switch (error) {
174 1.5.2.2 nathanw case ENXIO:
175 1.5.2.2 nathanw printf("device bad\n");
176 1.5.2.2 nathanw break;
177 1.5.2.2 nathanw
178 1.5.2.2 nathanw case EFAULT:
179 1.5.2.2 nathanw printf("device not ready\n");
180 1.5.2.2 nathanw break;
181 1.5.2.2 nathanw
182 1.5.2.2 nathanw case EINVAL:
183 1.5.2.2 nathanw printf("area improper\n");
184 1.5.2.2 nathanw break;
185 1.5.2.2 nathanw
186 1.5.2.2 nathanw case EIO:
187 1.5.2.2 nathanw printf("i/o error\n");
188 1.5.2.2 nathanw break;
189 1.5.2.2 nathanw
190 1.5.2.2 nathanw case EINTR:
191 1.5.2.2 nathanw printf("aborted from console\n");
192 1.5.2.2 nathanw break;
193 1.5.2.2 nathanw
194 1.5.2.2 nathanw default:
195 1.5.2.2 nathanw printf("succeeded\n");
196 1.5.2.2 nathanw break;
197 1.5.2.2 nathanw }
198 1.5.2.2 nathanw printf("\n\n");
199 1.5.2.2 nathanw delay(1000000);
200 1.5.2.2 nathanw }
201 1.5.2.2 nathanw
202 1.5.2.2 nathanw /* End of stubs.c */
203