Commit | Line | Data |
---|---|---|
8ae0e4b4 KM |
1 | /* |
2 | * Copyright (c) 1982 Regents of the University of California. | |
3 | * All rights reserved. The Berkeley software License Agreement | |
4 | * specifies the terms and conditions for redistribution. | |
5 | * | |
5af1bd7a | 6 | * @(#)boot.c 6.4 (Berkeley) %G% |
8ae0e4b4 | 7 | */ |
b7e60356 BJ |
8 | |
9 | #include "../h/param.h" | |
b7e60356 | 10 | #include "../h/inode.h" |
06254255 | 11 | #include "../h/fs.h" |
b7e60356 BJ |
12 | #include "../h/vm.h" |
13 | #include <a.out.h> | |
14 | #include "saio.h" | |
06254255 | 15 | #include "../h/reboot.h" |
b7e60356 | 16 | |
8da76047 BJ |
17 | /* |
18 | * Boot program... arguments passed in r10 and r11 determine | |
19 | * whether boot stops to ask for system name and which device | |
20 | * boot comes from. | |
21 | */ | |
22 | ||
23 | /* Types in r10 specifying major device */ | |
24 | char devname[][2] = { | |
25 | 'h','p', /* 0 = hp */ | |
26 | 0,0, /* 1 = ht */ | |
27 | 'u','p', /* 2 = up */ | |
a0761322 | 28 | 'h','k', /* 3 = hk */ |
3486ee81 BJ |
29 | 0,0, /* 4 = sw */ |
30 | 0,0, /* 5 = tm */ | |
31 | 0,0, /* 6 = ts */ | |
32 | 0,0, /* 7 = mt */ | |
33 | 0,0, /* 8 = tu */ | |
34 | 'r','a', /* 9 = ra */ | |
1e549678 CL |
35 | 'u','t', /* 10 = ut */ |
36 | 'r','b', /* 11 = rb */ | |
c079fe19 SL |
37 | 0,0, /* 12 = uu */ |
38 | 0,0, /* 13 = rx */ | |
39 | 'r','l', /* 14 = rl */ | |
8da76047 BJ |
40 | }; |
41 | ||
5af1bd7a JB |
42 | /* |
43 | * constants for converting a "minor" device numbers to unit number | |
44 | * and partition number | |
45 | */ | |
46 | #define UNITSHIFT 16 | |
47 | #define UNITMASK 0x1ff | |
48 | #define PARTITIONMASK 0x7 | |
49 | #define PARTITIONSHIFT 3 | |
50 | ||
51 | char line[100] = "xx(00,0)vmunix"; | |
b7e60356 | 52 | |
a889f9b7 BJ |
53 | int retry = 0; |
54 | ||
b7e60356 BJ |
55 | main() |
56 | { | |
8da76047 | 57 | register howto, devtype; /* howto=r11, devtype=r10 */ |
a889f9b7 | 58 | int io; |
5af1bd7a | 59 | register type, part, unit; |
b7e60356 | 60 | |
610c6f01 BJ |
61 | #ifdef lint |
62 | howto = 0; devtype = 0; | |
63 | #endif | |
b7e60356 | 64 | printf("\nBoot\n"); |
0bd37f37 | 65 | #ifdef JUSTASK |
aaa709c3 | 66 | howto = RB_ASKNAME|RB_SINGLE; |
0bd37f37 | 67 | #else |
5af1bd7a JB |
68 | type = devtype & 0xff; |
69 | unit = (int)((unsigned)devtype >> UNITSHIFT) & UNITMASK; | |
70 | part = unit & PARTITIONMASK; | |
71 | unit = unit >> PARTITIONSHIFT; | |
8da76047 | 72 | if ((howto&RB_ASKNAME)==0) { |
5af1bd7a JB |
73 | if (type >= 0 && type < sizeof(devname) / 2 |
74 | && devname[type][0]) { | |
75 | line[0] = devname[type][0]; | |
76 | line[1] = devname[type][1]; | |
77 | line[3] = unit / 10 + '0'; | |
78 | line[4] = unit % 10 + '0'; | |
79 | line[6] = part + '0'; | |
a0761322 | 80 | } else |
8da76047 | 81 | howto = RB_SINGLE|RB_ASKNAME; |
8da76047 | 82 | } |
0bd37f37 | 83 | #endif |
8da76047 BJ |
84 | for (;;) { |
85 | if (howto & RB_ASKNAME) { | |
86 | printf(": "); | |
87 | gets(line); | |
88 | } else | |
89 | printf(": %s\n", line); | |
90 | io = open(line, 0); | |
e559a17c TF |
91 | if (io >= 0) { |
92 | loadpcs(); | |
a889f9b7 | 93 | copyunix(howto, io); |
e559a17c | 94 | } |
8da76047 BJ |
95 | if (++retry > 2) |
96 | howto = RB_SINGLE|RB_ASKNAME; | |
97 | } | |
b7e60356 BJ |
98 | } |
99 | ||
a889f9b7 BJ |
100 | /*ARGSUSED*/ |
101 | copyunix(howto, io) | |
102 | register howto, io; | |
b7e60356 BJ |
103 | { |
104 | struct exec x; | |
105 | register int i; | |
106 | char *addr; | |
107 | ||
108 | i = read(io, (char *)&x, sizeof x); | |
06254255 KM |
109 | if (i != sizeof x || |
110 | (x.a_magic != 0407 && x.a_magic != 0413 && x.a_magic != 0410)) | |
b7e60356 BJ |
111 | _stop("Bad format\n"); |
112 | printf("%d", x.a_text); | |
b5d17f4d | 113 | if (x.a_magic == 0413 && lseek(io, 0x400, 0) == -1) |
06254255 | 114 | goto shread; |
b7e60356 BJ |
115 | if (read(io, (char *)0, x.a_text) != x.a_text) |
116 | goto shread; | |
117 | addr = (char *)x.a_text; | |
06254255 KM |
118 | if (x.a_magic == 0413 || x.a_magic == 0410) |
119 | while ((int)addr & CLOFSET) | |
120 | *addr++ = 0; | |
b7e60356 BJ |
121 | printf("+%d", x.a_data); |
122 | if (read(io, addr, x.a_data) != x.a_data) | |
123 | goto shread; | |
124 | addr += x.a_data; | |
125 | printf("+%d", x.a_bss); | |
126 | x.a_bss += 128*512; /* slop */ | |
127 | for (i = 0; i < x.a_bss; i++) | |
128 | *addr++ = 0; | |
129 | x.a_entry &= 0x7fffffff; | |
130 | printf(" start 0x%x\n", x.a_entry); | |
131 | (*((int (*)()) x.a_entry))(); | |
132 | _exit(); | |
133 | shread: | |
134 | _stop("Short read\n"); | |
135 | } | |
e559a17c TF |
136 | |
137 | /* 750 Patchable Control Store magic */ | |
138 | ||
139 | #include "../vax/mtpr.h" | |
140 | #include "../vax/cpu.h" | |
141 | #define PCS_BITCNT 0x2000 /* number of patchbits */ | |
142 | #define PCS_MICRONUM 0x400 /* number of ucode locs */ | |
143 | #define PCS_PATCHADDR 0xf00000 /* start addr of patchbits */ | |
144 | #define PCS_PCSADDR (PCS_PATCHADDR+0x8000) /* start addr of pcs */ | |
145 | #define PCS_PATCHBIT (PCS_PATCHADDR+0xc000) /* patchbits enable reg */ | |
146 | #define PCS_ENABLE 0xfff00000 /* enable bits for pcs */ | |
147 | ||
148 | loadpcs() | |
149 | { | |
150 | register int *ip; /* known to be r11 below */ | |
151 | register int i; /* known to be r10 below */ | |
152 | register int *jp; /* known to be r9 below */ | |
153 | register int j; | |
154 | static int pcsdone = 0; | |
155 | union cpusid sid; | |
156 | char pcs[100]; | |
5af1bd7a JB |
157 | char *closeparen; |
158 | char *index(); | |
e559a17c TF |
159 | |
160 | sid.cpusid = mfpr(SID); | |
161 | if (sid.cpuany.cp_type!=VAX_750 || sid.cpu750.cp_urev<95 || pcsdone) | |
162 | return; | |
163 | printf("Updating 11/750 microcode: "); | |
5af1bd7a JB |
164 | strncpy(pcs, line, 99); |
165 | pcs[99] = 0; | |
166 | closeparen = index(pcs, ')'); | |
167 | if (closeparen) | |
168 | *(++closeparen) = 0; | |
169 | else | |
170 | return; | |
e559a17c TF |
171 | strcat(pcs, "pcs750.bin"); |
172 | i = open(pcs, 0); | |
173 | if (i < 0) | |
174 | return; | |
175 | /* | |
176 | * We ask for more than we need to be sure we get only what we expect. | |
177 | * After read: | |
178 | * locs 0 - 1023 packed patchbits | |
179 | * 1024 - 11264 packed microcode | |
180 | */ | |
181 | if (read(i, (char *)0, 23*512) != 22*512) { | |
182 | printf("Error reading %s\n", pcs); | |
183 | close(i); | |
184 | return; | |
185 | } | |
186 | close(i); | |
187 | ||
188 | /* | |
189 | * Enable patchbit loading and load the bits one at a time. | |
190 | */ | |
191 | *((int *)PCS_PATCHBIT) = 1; | |
192 | ip = (int *)PCS_PATCHADDR; | |
193 | jp = (int *)0; | |
194 | for (i=0; i < PCS_BITCNT; i++) { | |
195 | asm(" extzv r10,$1,(r9),(r11)+"); | |
196 | } | |
197 | *((int *)PCS_PATCHBIT) = 0; | |
198 | ||
199 | /* | |
200 | * Load PCS microcode 20 bits at a time. | |
201 | */ | |
202 | ip = (int *)PCS_PCSADDR; | |
203 | jp = (int *)1024; | |
204 | for (i=j=0; j < PCS_MICRONUM * 4; i+=20, j++) { | |
205 | asm(" extzv r10,$20,(r9),(r11)+"); | |
206 | } | |
207 | ||
208 | /* | |
209 | * Enable PCS. | |
210 | */ | |
211 | i = *jp; /* get 1st 20 bits of microcode again */ | |
212 | i &= 0xfffff; | |
213 | i |= PCS_ENABLE; /* reload these bits with PCS enable set */ | |
214 | *((int *)PCS_PCSADDR) = i; | |
215 | ||
216 | sid.cpusid = mfpr(SID); | |
217 | printf("new rev level=%d\n", sid.cpu750.cp_urev); | |
218 | pcsdone = 1; | |
219 | } |