console.c (7983:fffe5c0f6707) console.c (7985:3e932649220c)
1
2
3/* ******************************************
4 * SimOS SRM Console
5 *
6 * Derived from Lance Berc's SRM console
7 * for the SRC XXM�Machine
8 * ******************************************/

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22#include "srcmax.h"
23#endif
24
25/* from ../h */
26#include "lib.h"
27#include "rpb.h"
28#include "cserve.h"
29
1
2
3/* ******************************************
4 * SimOS SRM Console
5 *
6 * Derived from Lance Berc's SRM console
7 * for the SRC XXM�Machine
8 * ******************************************/

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22#include "srcmax.h"
23#endif
24
25/* from ../h */
26#include "lib.h"
27#include "rpb.h"
28#include "cserve.h"
29
30
31#define CONS_INT_TX 0x01 /* interrupt enable / state bits */
32#define CONS_INT_RX 0x02
33
34#define KSEG 0xfffffc0000000000
35#define K1BASE 0xfffffc8000000000
36#define KSEG_TO_PHYS(x)(((ul)x) & ~KSEG)
37
38#define CDR ((volatile DevConsoleRegisters *) \

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201 that we're an Avanti, which is similar enough.
202 */
203 31, /* 050: system type - XXM is now in the Alpha SRM */
204 (1 << 10) | (2<<1),/* 058: system variation - XXM w/EV5 & embeded console */
205#endif
206#if 0
207 0x12, /* 050: system type - masquarade as some random 21064 */
208#endif
30#define CONS_INT_TX 0x01 /* interrupt enable / state bits */
31#define CONS_INT_RX 0x02
32
33#define KSEG 0xfffffc0000000000
34#define K1BASE 0xfffffc8000000000
35#define KSEG_TO_PHYS(x)(((ul)x) & ~KSEG)
36
37#define CDR ((volatile DevConsoleRegisters *) \

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200 that we're an Avanti, which is similar enough.
201 */
202 31, /* 050: system type - XXM is now in the Alpha SRM */
203 (1 << 10) | (2<<1),/* 058: system variation - XXM w/EV5 & embeded console */
204#endif
205#if 0
206 0x12, /* 050: system type - masquarade as some random 21064 */
207#endif
209 12, /* masquerade a DEC_3000_500 (bugnion) */
210 (2<<1), /* 058: system variation */
208 34, /* masquerade a Tsunami RGD */
209 (1<<10), /* 058: system variation */
211 'c'|('o'<<8)|('o'<<16)|('l'<< 24), /* 060: system revision */
212 1024*4096, /* 068: scaled interval clock intr freq OVERRIDEN*/
213 0, /* 070: cycle counter frequency */
214 0x200000000, /* 078: virtual page table base */
215 0, /* 080: reserved */
216 0, /* 088: offset to translation buffer hint */
217 1, /* 090: number of processor slots OVERRIDDEN*/
218 sizeof(struct rpb_percpu), /* 098: per-cpu slot size. OVERRIDDEN */

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1179 panic("cher (%x,%x,%x,%x)\n", a0, a1, a2, a3);
1180 }
1181
1182 return 0;
1183}
1184
1185long CallBackFixup(int a0, int a1, int a2)
1186{
210 'c'|('o'<<8)|('o'<<16)|('l'<< 24), /* 060: system revision */
211 1024*4096, /* 068: scaled interval clock intr freq OVERRIDEN*/
212 0, /* 070: cycle counter frequency */
213 0x200000000, /* 078: virtual page table base */
214 0, /* 080: reserved */
215 0, /* 088: offset to translation buffer hint */
216 1, /* 090: number of processor slots OVERRIDDEN*/
217 sizeof(struct rpb_percpu), /* 098: per-cpu slot size. OVERRIDDEN */

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1178 panic("cher (%x,%x,%x,%x)\n", a0, a1, a2, a3);
1179 }
1180
1181 return 0;
1182}
1183
1184long CallBackFixup(int a0, int a1, int a2)
1185{
1187 printf("CallbackFixup %x %x \n",a0,a1);
1186 long temp;
1187 /* Linux uses r8 for the current pointer (pointer to data structure
1188 contating info about currently running process). It is set when the
1189 kernel starts and is expected to remain there... Problem is that the
1190 unlike the kernel, the console does not prevent the assembler from
1191 using r8. So here is a work around. So far this has only been a problem
1192 in CallBackFixup() but any other call back functions could cause a problem
1193 at some point */
1188
1194
1195 /* save off the current pointer to a temp variable */
1196 asm("bis $8, $31, %0" : "=r" (temp));
1197
1198 /* call original code */
1199 printf("CallbackFixup %x %x, t7=%x\n",a0,a1,temp);
1200
1201 /* restore the current pointer */
1202 asm("bis %0, $31, $8" : : "r" (temp) : "$8");
1203
1189#if 0
1190 if (first[FIRST(a1)]==0) {
1191 first[FIRST(a1)] = KPTE(PFN(reservedFixup));
1192 } else {
1193 panic("CallBakcfixup\n");
1194 }
1195 second[SECOND(a1)] = KPTE(PFN(third_rpb)); /* Region 0 */
1196 printf("Fixup: FISRT(a1)=0x%x SECOND(a1)=0x%x THIRD(a1)=0x%x\n",

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1205 if (first[FIRST(a1)]==0) {
1206 first[FIRST(a1)] = KPTE(PFN(reservedFixup));
1207 } else {
1208 panic("CallBakcfixup\n");
1209 }
1210 second[SECOND(a1)] = KPTE(PFN(third_rpb)); /* Region 0 */
1211 printf("Fixup: FISRT(a1)=0x%x SECOND(a1)=0x%x THIRD(a1)=0x%x\n",

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