1
2
3/* ******************************************
4 * SimOS SRM Console
5 *
6 * Derived from Lance Berc's SRM console
7 * for the SRC XXM�Machine
8 * ******************************************/
9
10
11/* from simos */
12typedef unsigned long long uint64;
13#include "machine_defs.h"
14#include "new_aouthdr.h"
15#include "alpha_access.h"
16#if 0
17#include "srcmax.h"
18#endif
19
20/* from ../h */
21#include "lib.h"
22#include "rpb.h"
23#include "cserve.h"
24
25
26#define CONS_INT_TX 0x01 /* interrupt enable / state bits */
27#define CONS_INT_RX 0x02
28
29#define KSEG 0xfffffc0000000000
30#define K1BASE 0xfffffc8000000000
31#define KSEG_TO_PHYS(x)(((ul)x) & ~KSEG)
32
33#define CDR ((volatile DevConsoleRegisters *) \
34 (__MAGIC_ZONE(0, 0, MAGIC_ZONE_BDOOR_DEV) + __MAGIC_BDOOR_CNSLE_OFFS))
35
36
37#define PHYS_TO_K1(_x) (K1BASE|(_x))
38
39#define AOUT_LOAD_ADDR (KSEG|0xf000)
40
41#define ROUNDUP8(x) ((ul)(((ul)x)+7) & ~7)
42#define ROUNDUP128(x) ((ul)(((ul)x)+127) & ~127)
43#define ROUNDUP8K(x) ((ul)(((ul)(x))+8191) & ~8191)
44
45#define FIRST(x) ((((ul)(x)) >> 33) & 0x3ff)
46#define SECOND(x) ((((ul)(x)) >> 23) & 0x3ff)
47#define THIRD(x) ((((ul)(x)) >> 13) & 0x3ff)
48#define THIRD_XXX(x) ((((ul)(x)) >> 13) & 0xfff)
49#define PFN(x) ((((ul)(x) & ~KSEG) >> 13))
50
51/* Kernel write | kernel read | valid */
52#define KPTE(x) ((ul)((((ul)(x)) << 32) | 0x1101))
53
54#define HWRPB_PAGES 4
55#define MDT_BITMAP_PAGES 4
56
57#define CSERVE_K_JTOKERN 0x18
58
59#define NUM_KERNEL_THIRD (4)
60
61
62static unixBoot(int go, int argc, char **argv);
63void jToPal(ul bootadr);
64void SlaveLoop(int cpu);
65
66
67AlphaAccess simosConf;
68
69/* **************************************************************
70 * Console callbacks use VMS calling conventions
71 * read AXP manual, 2-64.
72 * ***************************************************************/
73typedef struct OpenVMSFunc {
74 long dummy;
75 long func;
76}OpenVMSFunc;
77
78OpenVMSFunc callbackFunc, fixupFunc;
79
80
81
82
83ul theLock;
84
85
86extern void SpinLock(ul *lock);
87#define SpinUnlock(_x) *(_x) = 0;
88
89struct _kernel_params {
90 char *bootadr;
91 ul rpb_percpu;
92 ul free_pfn;
93 ul argc;
94 ul argv;
95 ul envp; /* NULL */
96};
97
98
99extern consoleCallback[];
100extern consoleFixup[];
101long CallBackDispatcher();
102long CallBackFixup();
103
104/*
105 * simos console output
106 */
107
108void InitConsole(void)
109{
110#if 0
111 CDR->intr_status =(DevRegister)(DEV_CNSLE_RX_INTR |DEV_CNSLE_TX_INTR);
112#endif
113}
114
115void PutChar(char c)
116{
117#if 0
118 CDR->data = c;
119#endif
120#if 0
121 *(int*) PHYS_TO_K1(SLOT_D_COM1<<5) = c;
122#endif
123 AlphaAccess *k1Conf = (AlphaAccess *)(__MAGIC_ZONE(0, 0, MAGIC_ZONE_EV5_ALIAS));
124 k1Conf->outputChar = c;
125
126}
127
128
129int passArgs(int argc)
130{
131 ;
132}
133
134
135main(int argc, char **argv)
136{
137 int x,i;
138 AlphaAccess *k1Conf = (AlphaAccess *)(__MAGIC_ZONE(0, 0, MAGIC_ZONE_EV5_ALIAS));
139 ui *k1ptr,*ksegptr;
140
141
142 InitConsole();
143 printf("SimOS console \n");
144 /*
145 * get configuration from backdoor
146 */
147 simosConf.last_offset = k1Conf->last_offset;
148 printf(" Got simosConfiguration %d \n",simosConf.last_offset);
149
150 for (i=1;i<=simosConf.last_offset/4;i++) {
151 ui *k1ptr = (ui*)k1Conf + i;
152 ui *ksegptr = (ui*)(&simosConf.last_offset)+i;
153 *ksegptr = *k1ptr;
154
155 }
156
157 if (simosConf.version != ALPHA_ACCESS_VERSION) {
158 panic("Console version mismatch. Console expects %d. SimOS has %d \n",
159 ALPHA_ACCESS_VERSION,simosConf.version);
160 }
161
162
163 /*
164 * setup arguments to kernel
165 */
166 unixBoot(1,argc,argv);
167
168 x = *(volatile int *)(K1BASE-4);
169 while(1) continue;
170 return x;
171}
172
173/*
174 * BOOTING
175 */
176struct rpb xxm_rpb = {
177 NULL, /* 000: physical self-reference */
178 'H'|('W'<<8)|('R'<<16)|('P'<<24)|('B'<<32), /* 008: contains string "HWRPB" */
179 6, /* 010: HWRPB version number */
180 /* the byte count is wrong, but who needs it? - lance */
181 0, /* 018: bytes in RPB perCPU CTB CRB MEDSC */
182 0, /* 020: primary cpu id */
183 8192, /* 028: page size in bytes */
184 43, /* 030: number of phys addr bits */
185 127, /* 038: max valid ASN */
186 {'0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '1'}, /* 040: system serial num: 10 ascii chars */
187#ifdef undef
188/* To be legitimate, the following system type and variation are correct for the XXM.
189 But there are too many #ifdefs etc to deal with in Unix, so we tell the kernel
190 that we're an Avanti, which is similar enough.
191 */
192 31, /* 050: system type - XXM is now in the Alpha SRM */
193 (1 << 10) | (2<<1),/* 058: system variation - XXM w/EV5 & embeded console */
194#endif
195#if 0
196 0x12, /* 050: system type - masquarade as some random 21064 */
197#endif
198 12, /* masquerade a DEC_3000_500 (bugnion) */
199 (2<<1), /* 058: system variation */
200 'c'|('o'<<8)|('o'<<16)|('l'<< 24), /* 060: system revision */
201 1024*4096, /* 068: scaled interval clock intr freq OVERRIDEN*/
202 0, /* 070: cycle counter frequency */
203 0x200000000, /* 078: virtual page table base */
204 0, /* 080: reserved */
205 0, /* 088: offset to translation buffer hint */
206 1, /* 090: number of processor slots OVERRIDDEN*/
207 sizeof(struct rpb_percpu), /* 098: per-cpu slot size. OVERRIDDEN */
208 0, /* 0A0: offset to per_cpu slots */
209 1, /* 0A8: number of CTBs */
210#ifdef bugnion_gone
211 sizeof(struct rpb_ctb), /* 0B0: bytes in largest CTB */
212#else
213 sizeof(struct ctb_tt),
214#endif
215 0, /* 0B8: offset to CTB (cons term block) */
216 0, /* 0C0: offset to CRB (cons routine block) */
217 0, /* 0C8: offset to memory descriptor table */
218 0, /* 0D0: offset to config data block */
219 0, /* 0D8: offset to FRU table */
220 0, /* 0E0: virt addr of save term routine */
221 0, /* 0E8: proc value for save term routine */
222 0, /* 0F0: virt addr of restore term routine */
223 0, /* 0F8: proc value for restore term routine */
224 0, /* 100: virt addr of CPU restart routine */
225 0, /* 108: proc value for CPU restart routine */
226 0, /* 110: used to determine presence of kdebug */
227 0, /* 118: reserved for hardware */
228/* the checksum is wrong, but who needs it? - lance */
229 0, /* 120: checksum of prior entries in rpb */
230 0, /* 128: receive ready bitmask */
231 0, /* 130: transmit ready bitmask */
232 0, /* 138: Dynamic System Recog. offset */
233};
234
235ul xxm_tbb[] = { 0x1e1e1e1e1e1e1e1e, 0x1e1e1e1e1e1e1e1e, 0x1e1e1e1e1e1e1e1e, 0x1e1e1e1e1e1e1e1e,
236 0x1e1e1e1e1e1e1e1e, 0x1e1e1e1e1e1e1e1e, 0x1e1e1e1e1e1e1e1e, 0x1e1e1e1e1e1e1e1e};
237
238struct rpb_percpu xxm_rpb_percpu = {
239 {0,0,0,0,0,0,0,{0,0},{0,0,0,0,0,0,0,0}}, /* 000: boot/restart HWPCB */
240 (STATE_PA | STATE_PP | STATE_CV | STATE_PV | STATE_PMV | STATE_PL), /* 080: per-cpu state bits */
241 0xc000, /* 088: palcode memory length */
242 0x2000, /* 090: palcode scratch length */
243 0x4000, /* 098: phys addr of palcode mem space */
244 0x2000, /* 0A0: phys addr of palcode scratch space */
245 (2 << 16) | (5 << 8) | 1, /* 0A8: PALcode rev required */
246 5|(2<<32), /* 0B0: processor type */
247 7, /* 0B8: processor variation */
248 'D'|('a'<<8)|('v'<<16)|('e'<<24), /* 0C0: processor revision */
249 {'D','a','v','e','C','o','n','r','o','y',0,0,0,0,0,0}, /* 0C8: proc serial num: 10 ascii chars */
250 0, /* 0D8: phys addr of logout area */
251 0, /* 0E0: length in bytes of logout area */
252 0, /* 0E8: halt pcb base */
253 0, /* 0F0: halt pc */
254 0, /* 0F8: halt ps */
255 0, /* 100: halt arg list (R25) */
256 0, /* 108: halt return address (R26) */
257 0, /* 110: halt procedure value (R27) */
258 0, /* 118: reason for halt */
259 0, /* 120: for software */
260 {0}, /* 128: inter-console communications buffer */
261 {1,0,5,0,0,0,0,0,0,0,0,0,0,0,0,0}, /* 1D0: PALcode revs available */
262 0 /* 250: reserved for arch use */
263/* the dump stack grows from the end of the rpb page not to reach here */
264};
265
266struct _xxm_rpb_mdt {
267 long rpb_checksum; /* 000: checksum of entire mem desc table */
268 long rpb_impaddr; /* 008: PA of implementation dep info */
269 long rpb_numcl; /* 010: number of clusters */
270 struct rpb_cluster rpb_cluster[3]; /* first instance of a cluster */
271};
272
273struct _xxm_rpb_mdt xxm_rpb_mdt = {
274 0, /* 000: checksum of entire mem desc table */
275 0, /* 008: PA of implementation dep info */
276 0, /* 010: number of clusters */
277 {{ 0, /* 000: starting PFN of this cluster */
278 0, /* 008: count of PFNs in this cluster */
279 0, /* 010: count of tested PFNs in cluster */
280 0, /* 018: va of bitmap */
281 0, /* 020: pa of bitmap */
282 0, /* 028: checksum of bitmap */
283 1 /* 030: usage of cluster */
284 },
285 { 0, /* 000: starting PFN of this cluster */
286 0, /* 008: count of PFNs in this cluster */
287 0, /* 010: count of tested PFNs in cluster */
288 0, /* 018: va of bitmap */
289 0, /* 020: pa of bitmap */
290 0, /* 028: checksum of bitmap */
291 0 /* 030: usage of cluster */
292 },
293 { 0, /* 000: starting PFN of this cluster */
294 0, /* 008: count of PFNs in this cluster */
295 0, /* 010: count of tested PFNs in cluster */
296 0, /* 018: va of bitmap */
297 0, /* 020: pa of bitmap */
298 0, /* 028: checksum of bitmap */
299 0 /* 030: usage of cluster */
300 }}
301};
302
303/* constants for slotinfo bus_type subfield */
304#define SLOTINFO_TC 0
305#define SLOTINFO_ISA 1
306#define SLOTINFO_EISA 2
307#define SLOTINFO_PCI 3
308
309struct rpb_ctb xxm_rpb_ctb = {
310 CONS_DZ, /* 000: console type */
311 0, /* 008: console unit */
312 0, /* 010: reserved */
313 0 /* 018: byte length of device dep portion */
314};
315
316/* we don't do any fixup (aka relocate the console) - we hope */
317struct rpb_crb xxm_rpb_crb = {
318 0, /* va of call-back dispatch rtn */
319 0, /* pa of call-back dispatch rtn */
320 0, /* va of call-back fixup rtn */
321 0, /* pa of call-back fixup rtn */
322 0, /* number of entries in phys/virt map */
323 0 /* Number of pages to be mapped */
324};
325
326struct _rpb_name {
327 unsigned long length;
328 char name[16];
329};
330
331extern struct _rpb_name xxm_name;
332
333struct rpb_dsr xxm_rpb_dsr = {
334 0,
335 0,
336 0,
337};
338
339struct _rpb_name xxm_name = {
340 16,
341 {'D','E','C',' ','S','R','C',' ','X','X','M',' ','D','G','C',0},
342};
343
344/* XXM has one LURT entry - 1050 is for workstations, 1100 is servers (and is needed for CXX) */
345long xxm_lurt[10] = { 9, 12, -1, -1, -1, -1, -1, -1, 1100, 1100 };
346
347ul unix_boot_mem;
348unsigned long bootadr;
349#if 0
350unsigned long aout_bss_addr, aout_bss_size, aout_entry, aout_text_start, aout_data_addr;
351#endif
352char **kargv;
353int kargc;
354ul free_pfn;
355struct rpb_percpu *rpb_percpu;
356
357
358#define MAX_CPUS 32
359
360ul bootStrapImpure[MAX_CPUS];
361
362
363char *unix_boot_alloc(int pages)
364{
365 char *ret = (char *) unix_boot_mem;
366 unix_boot_mem += (pages * 8192);
367 return ret;
368}
369
370ul *first = 0;
371ul *third_rpb = 0;
372ul *reservedFixup = 0;
373
374struct rpb *rpb;
375
376unixBoot(int go, int argc, char **argv)
377{
378 ul *second, *third_kernel, ptr, *tbb, size, *percpu_logout;
379 unsigned char *mdt_bitmap;
380 long *lp1, *lp2, sum;
381 int i, cl;
382 int kern_first_page;
383 int mem_size = simosConf.mem_size;
384
385 int mem_pages = mem_size / 8192, cons_pages;
386 ul kernel_bytes, ksp, kernel_end, *unix_kernel_stack, bss, ksp_bottom, ksp_top;
387 struct rpb_ctb *rpb_ctb;
388 struct ctb_tt *ctb_tt;
389 struct rpb_dsr *rpb_dsr;
390 struct rpb_crb *rpb_crb;
391 struct _xxm_rpb_mdt *rpb_mdt;
392 int *rpb_lurt;
393 char *rpb_name;
394 ul nextPtr;
395
396 printf( "memsize %x pages %x \n",mem_size,mem_pages);
397
398
399
400#ifdef notnow
401 if (unixArgs()) return;
402#endif
403
404 /* Allocate:
405 * two pages for the HWRPB
406 * five page table pages:
407 * 1: First level page table
408 * 1: Second level page table
409 * 1: Third level page table for HWRPB
410 * 2: Third level page table for kernel (for up to 16MB)
411 * set up the page tables
412 * load the kernel at the physical address 0x230000
413 * build the HWRPB
414 * set up memory descriptor table to give up the
415 * physical memory between the end of the page
416 * tables and the start of the kernel
417 * enable kseg addressing
418 * jump to the kernel
419 */
420
421 unix_boot_mem = ROUNDUP8K(&_end);
422
423 printf("First free page after ROM 0x%x\n", unix_boot_mem);
424
425 rpb = (struct rpb *) unix_boot_alloc( HWRPB_PAGES);
426
427 mdt_bitmap = (unsigned char *) unix_boot_alloc(MDT_BITMAP_PAGES);
428 first = (ul *)unix_boot_alloc(1);
429 second = (ul *)unix_boot_alloc(1);
430 third_rpb = (ul *)unix_boot_alloc(1);
431 reservedFixup = (ul*) unix_boot_alloc(1);
432 third_kernel = (ul *)unix_boot_alloc(NUM_KERNEL_THIRD);
433 percpu_logout = (ul*)unix_boot_alloc(1);
434
435
436 cons_pages = KSEG_TO_PHYS(unix_boot_mem) / 8192;
437
438 /* Set up the page tables */
439 bzero((char *)first, 8192);
440 bzero((char *)second, 8192);
441 bzero((char *)reservedFixup,8192);
442 bzero((char *)third_rpb, HWRPB_PAGES * 8192);
443 bzero((char *)third_kernel, 8192 * NUM_KERNEL_THIRD);
444
445 first[0] = KPTE(PFN(second));
446 first[1] = KPTE(PFN(first)); /* Region 3 */
447
448 second[SECOND(0x10000000)] = KPTE(PFN(third_rpb)); /* Region 0 */
449 for (i=0;i<NUM_KERNEL_THIRD;i++) {
450 second[SECOND(0x20000000)+i] = KPTE(PFN(third_kernel)+i); /* Region 1 */
451 }
452 second[SECOND(0x40000000)] = KPTE(PFN(second)); /* Region 2 */
453
454
455 {
456
457 /* For some obscure reason, Dec Unix's database read
458 * from /etc/sysconfigtab is written to this fixed
459 * mapped memory location. Go figure, since it is
460 * not initialized by the console. Maybe it is
461 * to look at the database from the console
462 * after a boot/crash.
463 *
464 * Black magic to estimate the max size. SEGVs on overflow
465 * bugnion
466 */
467
468#define DATABASE_BASE 0x20000000
469#ifdef not_not
470#define DATABASE_END 0x20230000 /* don't need all that */
471#endif
472
473#define DATABASE_END 0x20020000
474
475 int i;
476 ul *dbPage = (ul*)unix_boot_alloc(1);
477 second[SECOND(DATABASE_BASE)] = KPTE(PFN(dbPage));
478 for (i=DATABASE_BASE; i <DATABASE_END ; i+= 8096) {
479 ul *db = (ul*)unix_boot_alloc(1);
480 dbPage[THIRD(i)] = KPTE(PFN(db));
481 }
482 }
483
484 /* Region 0 */
485 /* Map the HWRPB */
486 for (i = 0; i < HWRPB_PAGES; i++) third_rpb[i] = KPTE(PFN(rpb) + i);
487
488 /* Map the MDT bitmap table */
489 for (i=0;i<MDT_BITMAP_PAGES;i++) {
490 third_rpb[HWRPB_PAGES+i] = KPTE(PFN(mdt_bitmap)+i);
491 }
492
493 /* Protect the PAL pages */
494 for (i = 1; i < PFN(first); i++) third_rpb[HWRPB_PAGES + MDT_BITMAP_PAGES + i] = KPTE(i);
495
496 /* Set up third_kernel after it's loaded, when we know where it is */
497
498#ifdef original__xxm
499 if (unixLoadKernel(AOUT_LOAD_ADDR, argv[1]) == -1) return;
500 aoutfixup(AOUT_LOAD_ADDR);
501#else
502 /* aoutfixup(simosConf.kernelFileHdr); */
503#endif
504#if 0
505 bss = aout_bss_addr;
506
507 kern_first_page = (KSEG_TO_PHYS(aout_text_start) / 8192);
508 kernel_end = ksp_top = ROUNDUP8K(aout_bss_addr + aout_bss_size);
509 bootadr = aout_entry;
510#endif
511
512 kern_first_page = (KSEG_TO_PHYS(simosConf.kernStart)/8192);
513 kernel_end = ksp_top = ROUNDUP8K(simosConf.kernEnd);
514 bootadr = simosConf.entryPoint;
515
516
517 printf("HWRPB 0x%x l1pt 0x%x l2pt 0x%x l3pt_rpb 0x%x l3pt_kernel 0x%x l2reserv 0x%x\n",
518 rpb, first, second, third_rpb, third_kernel,reservedFixup);
519 if (kernel_end - simosConf.kernStart > (0x800000*NUM_KERNEL_THIRD)) {
520 printf("Kernel is more than 8MB 0x%x - 0x%x = 0x%x\n",
521 kernel_end, simosConf.kernStart,
522 kernel_end -simosConf.kernStart );
523 panic("kernel too big\n");
524
525 }
526 /* Map the kernel's pages into the third level of region 2 */
527
528 for (ptr = simosConf.kernStart; ptr < kernel_end; ptr += 8192) {
529
530 third_kernel[THIRD_XXX(ptr)] = KPTE(PFN(ptr));
531 }
532 /* blow 2 pages of phys mem for guards since it maintains 1-to-1 mapping */
533 ksp = ksp_top + (3 * 8192);
534 if (ksp - simosConf.kernStart > (0x800000*NUM_KERNEL_THIRD)) {
535 printf("Kernel stack pushd us over 8MB\n");
536 panic("ksp too big\n");
537 }
538 if (THIRD_XXX((ul)ksp_top) > NUM_KERNEL_THIRD * 1024) {
539 panic("increase NUM_KERNEL_THIRD, and change THIRD_XXX\n");
540 }
541 ptr = (ul) ksp_top;
542 bzero((char *)ptr, 8192 * 2);
543 third_kernel[THIRD_XXX(ptr)] = 0; /* Stack Guard Page */
544 ptr += 8192;
545 third_kernel[THIRD_XXX(ptr)] = KPTE(PFN(ptr)); /* Kernel Stack Pages */
546 ptr += 8192;
547 third_kernel[THIRD_XXX(ptr)] = KPTE(PFN(ptr));
548 ptr += 8192;
549 third_kernel[THIRD_XXX(ptr)] = 0; /* Stack Guard Page */
550
551 /* put argv into the bottom of the stack - argv starts at 1 because
552 * the command thatr got us here (i.e. "unixboot) is in argv[0].
553 */
554 ksp -= 8; /* Back up one longword */
555 ksp -= argc * sizeof(char *); /* Make room for argv */
556 kargv = (char **) ksp;
557 for (i = 1; i < argc; i++) { /* Copy arguments to stack */
558 ksp -= ((strlen(argv[i]) + 1) + 7) & ~0x7;
559 kargv[i-1] = (char *) ksp;
560 strcpy(kargv[i-1], argv[i]);
561 }
562 kargc = i - 1;
563 kargv[kargc] = NULL; /* just to be sure; doesn't seem to be used */
564 ksp -= sizeof(char *); /* point above last arg for no real reason */
565
566 free_pfn = PFN(ptr);
567
568 bcopy((char *)&xxm_rpb, (char *)rpb, sizeof(struct rpb));
569
570 rpb->rpb_selfref = (struct rpb *) KSEG_TO_PHYS(rpb);
571 rpb->rpb_string = 0x0000004250525748;
572
573 tbb = (ul *) (((char *) rpb) + ROUNDUP8(sizeof(struct rpb)));
574 rpb->rpb_trans_off = (ul)tbb - (ul)rpb;
575 bcopy((char *)xxm_tbb, (char *)tbb, sizeof(xxm_tbb));
576
577
578 /*
579 * rpb_counter. Use to determine timeouts in OS.
580 * XXX must be patched after a checkpoint restore (I guess)
581 */
582
583 printf("CPU Clock at %d MHz IntrClockFrequency=%d \n", simosConf.cpuClock,simosConf.intrClockFrequency);
584 rpb->rpb_counter = simosConf.cpuClock * 1000 * 1000;
585
586 /*
587 * By definition, the rpb_clock is scaled by 4096 (in hz)
588 */
589 rpb->rpb_clock = simosConf.intrClockFrequency * 4096;
590
591
592
593 /*
594 * Per CPU Slots. Multiprocessor support.
595 */
596 {
597 int i;
598 int size = ROUNDUP128(sizeof(struct rpb_percpu));
599
600 printf("Booting with %d processor(s) \n",simosConf.numCPUs);
601
602 rpb->rpb_numprocs = simosConf.numCPUs;
603 rpb->rpb_slotsize = size;
604 rpb_percpu = (struct rpb_percpu *)
605 ROUNDUP128(((ul) tbb) +(sizeof(xxm_tbb)));
606
607 rpb->rpb_percpu_off = (ul)rpb_percpu - (ul)rpb;
608
609 for (i=0;i<simosConf.numCPUs;i++) {
610 struct rpb_percpu *thisCPU = (struct rpb_percpu*)
611 ((ul)rpb_percpu + size*i);
612
613 bzero((char *)thisCPU, size);
614 bcopy((char *)&xxm_rpb_percpu,
615 (char *)thisCPU,
616 sizeof(struct rpb_percpu));
617
618 thisCPU->rpb_pcb.rpb_ksp = ksp;
619 thisCPU->rpb_pcb.rpb_ptbr = PFN(first);
620
621 thisCPU->rpb_logout = KSEG_TO_PHYS(percpu_logout);
622 thisCPU->rpb_logout_len = 8192;
623
624/* thisCPU->rpb_pcb.rpb_ptbr = PFN(second);*/
625
626 printf("KSP: 0x%x PTBR 0x%x\n", thisCPU->rpb_pcb.rpb_ksp, thisCPU->rpb_pcb.rpb_ptbr);
627
628 if (i) {
629 bootStrapImpure[i] = (ul)unix_boot_alloc(1);
630 }
631
632 }
633
634 nextPtr = (ul)rpb_percpu + size*simosConf.numCPUs;
635 }
636
637 /*
638 * Console Terminal Block
639 */
640
641
642 rpb_ctb = (struct rpb_ctb *) nextPtr;
643 ctb_tt = (struct ctb_tt*) rpb_ctb;
644
645 rpb->rpb_ctb_off = ((ul)rpb_ctb) - (ul)rpb;
646 rpb->rpb_ctb_size = sizeof(struct rpb_ctb);
647
648 bzero((char *)rpb_ctb, sizeof(struct ctb_tt));
649
650#ifdef original_xxm
651 if (tga_slot == -1)
652 rpb_ctb->rpb_type = CONS_DZ;
653 else {
654 rpb_ctb->rpb_type = CONS_GRPH;
655 rpb_ctb->rpb_unit = (SLOTINFO_PCI << 16) | (0 << 8) | tga_slot;
656 }
657#else
658 rpb_ctb->rpb_type = CONS_DZ;
659#endif
660
661 rpb_ctb->rpb_length = sizeof(ctb_tt)-sizeof(rpb_ctb);
662
663 /*
664 * uart initizliation
665 */
666 ctb_tt->ctb_csr = 0;
667 ctb_tt->ctb_tivec = 0x6c0; /* matches tlaser pal code */
668 ctb_tt->ctb_rivec = 0x680; /* matches tlaser pal code */
669 ctb_tt->ctb_baud = 9600;
670 ctb_tt->ctb_put_sts = 0;
671 ctb_tt->ctb_get_sts = 0;
672
673
674 rpb_crb = (struct rpb_crb *) (((ul)rpb_ctb) + sizeof(struct ctb_tt));
675 rpb->rpb_crb_off = ((ul)rpb_crb) - (ul)rpb;
676
677 bzero((char *)rpb_crb, sizeof(struct rpb_crb));
678 /*
679 * console callback stuff (simos)
680 */
681
682 rpb_crb->rpb_num = 1;
683 rpb_crb->rpb_mapped_pages = HWRPB_PAGES;
684 rpb_crb->rpb_map[0].rpb_virt = 0x10000000;
685 rpb_crb->rpb_map[0].rpb_phys = ((ul)rpb) & ~0x1fff;
686 rpb_crb->rpb_map[0].rpb_pgcount = HWRPB_PAGES;
687
688
689 printf("Console Callback at 0x%x, fixup at 0x%x \n",
690 rpb_crb->rpb_va_disp,
691 rpb_crb->rpb_va_fixup );
692
693 rpb_mdt = (struct _xxm_rpb_mdt *) (((ul)rpb_crb) + sizeof(struct rpb_crb));
694 rpb->rpb_mdt_off = (ul)rpb_mdt - (ul)rpb;
695 bcopy((char *)&xxm_rpb_mdt, (char *)rpb_mdt, sizeof(struct _xxm_rpb_mdt));
696
697
698 cl = 0;
699#ifdef undef
700 /* Until Digital Unix can handle it, account all pages below the kernel
701 * as "console" memory. */
702 rpb_mdt->rpb_cluster[cl].rpb_pfncount = cons_pages;
703#endif
704 rpb_mdt->rpb_cluster[cl].rpb_pfncount = kern_first_page;
705 cl++;
706
707 rpb_mdt->rpb_cluster[cl].rpb_pfn = kern_first_page;
708 rpb_mdt->rpb_cluster[cl].rpb_pfncount = mem_pages - kern_first_page;
709 rpb_mdt->rpb_cluster[cl].rpb_pfntested=rpb_mdt->rpb_cluster[cl].rpb_pfncount;
710 rpb_mdt->rpb_cluster[cl].rpb_pa = KSEG_TO_PHYS(mdt_bitmap);
711 rpb_mdt->rpb_cluster[cl].rpb_va = 0x10000000 + HWRPB_PAGES * 8192;
712 cl++;
713
714#ifdef undef
715 /* The stupid Unix kernel needs to have all mdt clusters in ascending
716 * order, and the last cluster is used to compute the top of memory.
717 * It can't make use of memory between the console and the kernel.
718 */
719 rpb_mdt->rpb_cluster[cl].rpb_pfn = cons_pages;
720 rpb_mdt->rpb_cluster[cl].rpb_pfncount = kern_first_page - cons_pages;
721 rpb_mdt->rpb_cluster[cl].rpb_pfntested=rpb_mdt->rpb_cluster[cl].rpb_pfncount;
722 rpb_mdt->rpb_cluster[cl].rpb_pa = KSEG_TO_PHYS(mdt_bitmap);
723 rpb_mdt->rpb_cluster[cl].rpb_va = 0x10000000 + HWRPB_PAGES * 8192;
724 cl++;
725#endif
726
727 rpb_mdt->rpb_numcl = cl;
728
729 for (i = 0; i < cl; i++)
730 printf("Memory cluster %d [%d - %d]\n", i, rpb_mdt->rpb_cluster[i].rpb_pfn, rpb_mdt->rpb_cluster[i].rpb_pfncount);
731
732
733
734 /* Checksum the rpb for good luck */
735 sum = 0;
736 lp1 = (long *)&rpb_mdt->rpb_impaddr;
737 lp2 = (long *)&rpb_mdt->rpb_cluster[cl];
738 while (lp1 < lp2) sum += *lp1++;
739 rpb_mdt->rpb_checksum = sum;
740
741 /* XXX should checksum the cluster descriptors */
742
743 bzero((char *)mdt_bitmap, MDT_BITMAP_PAGES * 8192);
744 for (i = 0; i < mem_pages/8; i++) ((unsigned char *)mdt_bitmap)[i] = 0xff;
745
746 printf("Initalizing mdt_bitmap addr 0x%x mem_pages %x \n",
747 (long)mdt_bitmap,(long)mem_pages);
748
749 xxm_rpb.rpb_config_off = 0;
750 xxm_rpb.rpb_fru_off = 0;
751
752 rpb_dsr = (struct rpb_dsr *) (((ul)rpb_mdt) + sizeof(struct _xxm_rpb_mdt));
753 rpb->rpb_dsr_off = ((ul)rpb_dsr) - (ul)rpb;
754 bzero((char *)rpb_dsr, sizeof(struct rpb_dsr));
755 rpb_dsr->rpb_smm = 1578; /* Official XXM SMM number as per SRM */
756 rpb_dsr->rpb_smm = 1089; /* Official Alcor SMM number as per SRM */
757
758 rpb_lurt = (int *) ROUNDUP8(((ul)rpb_dsr) + sizeof(struct rpb_dsr));
759 rpb_dsr->rpb_lurt_off = ((ul) rpb_lurt) - (ul) rpb_dsr;
760 bcopy((char *)xxm_lurt, (char *)rpb_lurt, sizeof(xxm_lurt));
761
762 rpb_name = (char *) ROUNDUP8(((ul)rpb_lurt) + sizeof(xxm_lurt));
763 rpb_dsr->rpb_sysname_off = ((ul) rpb_name) - (ul) rpb_dsr;
764#define THENAME " SimOS ALPHA/EV5"
765 sum = sizeof(THENAME);
766 bcopy(THENAME, rpb_name, sum);
767 *(ul *)rpb_name = sizeof(THENAME); /* put in length field */
768
769 /* calculate size of rpb */
770 rpb->rpb_size = ((ul) &rpb_name[sum]) - (ul)rpb;
771
772 if (rpb->rpb_size > 8192*HWRPB_PAGES) {
773 panic("HWRPB_PAGES=%d too small for HWRPB !!! \n");
774 }
775
776
777 {
778 ul *ptr = (ul*)((char*)rpb_dsr + sizeof(struct rpb_dsr ));
779 rpb_crb->rpb_pa_disp = KSEG_TO_PHYS(ptr);
780 rpb_crb->rpb_va_disp = 0x10000000 + ((ul)ptr&(0x2000*HWRPB_PAGES-1));
781 printf("ConsoleDispatch at virt %x phys %x val %x\n",
782 rpb_crb->rpb_va_disp,
783 rpb_crb->rpb_pa_disp,
784 consoleCallback);
785 *ptr++ = 0;
786 *ptr++ = (ul) consoleCallback;
787 rpb_crb->rpb_pa_fixup = KSEG_TO_PHYS(ptr);
788 rpb_crb->rpb_va_fixup = 0x10000000 + ((ul)ptr& (0x2000*HWRPB_PAGES-1));
789 *ptr++ = 0;
790 *ptr++ = (ul) consoleFixup;
791 }
792
793
794 /* Checksum the rpb for good luck */
795 sum = 0;
796 lp1 = (long *)rpb;
797 lp2 = &rpb->rpb_checksum;
798 while (lp1 < lp2)
799 sum += *lp1++;
800 *lp2 = sum;
801
802
803 /*
804 * MP bootstrap
805 */
806
807 {
808 int i;
809 for (i=1;i<simosConf.numCPUs;i++) {
810 volatile AlphaAccess *k1Conf = (volatile AlphaAccess *)
811 (__MAGIC_ZONE(0, 0, MAGIC_ZONE_EV5_ALIAS));
812 SpinLock(&theLock);
813 printf("Bootstraping CPU %d with sp=0x%x \n",
814 i,bootStrapImpure[i]);
815 SpinUnlock(&theLock);
816 k1Conf->bootStrapImpure = bootStrapImpure[i];
817 k1Conf->bootStrapCPU = i;
818 }
819 }
820
821 /*
822 * Make sure that we are not stepping on the kernel
823 */
824 if ((ul)unix_boot_mem >= (ul)simosConf.kernStart) {
825 panic("CONSOLE: too much memory. Smashing kernel \n");
826 } else {
827 SpinLock(&theLock);
828 printf("unix_boot_mem ends at %x \n",unix_boot_mem);
829 SpinUnlock(&theLock);
830 }
831
832
833#ifdef undef
834#define CSERVE_K_JTOKERN 0x18
835 cServe(bootadr, (ul) rpb_percpu, CSERVE_K_JTOKERN, free_pfn);
836#endif
837
838 if (go) JToKern(bootadr, rpb_percpu, free_pfn, kargc, kargv, NULL);
839}
840
841
842#if 0
843aoutfixup(char *p)
844{
845 int i;
846 unsigned long rem, len, off, dst;
847
848
849 struct new_aouthdr *ao = (struct new_aouthdr *) &p[NEW_FILHSZ];
850#if 0
851 struct scnhdr *s = (struct scnhdr *) &p[FILHSZ + AOUTHSZ];
852 struct scnhdr *t, *d, *b;
853 printf("aoutfixup: %d sections \n",fh->f_nscns);
854#endif
855
856
857 aout_text_start = ((ul)ao->text_start_hi<<32) + ao->text_start;
858 aout_data_addr = ((ul)ao->data_start_hi<<32) + ao->data_start;
859 aout_bss_addr = ((ul)ao->bss_start_hi<<32) + ao->bss_start;
860 aout_bss_size = ((ul)ao->bsize_hi<<32) + ao->bsize;
861 aout_entry = ((ul)ao->entry_hi<<32) + ao->entry;
862
863 printf("_text 0x%16x %8d @ %08d\n", aout_text_start, ao->tsize,0 /* t->s_scnptr*/);
864 printf("_data 0x%16x %8d @ %08d\n", aout_data_addr, ao->dsize,0/* d->s_scnptr*/);
865 printf("_bss 0x%16x %8d\n", aout_bss_addr, ao->bsize);
866 printf("entry 0x%16x\n", aout_entry);
867#if 0
868 for (i = 0; i < fh->f_nscns; i++) {
869 printf("section %d %s \n",i,s[i].s_name);
870 if (!strcmp(s[i].s_name, ".text")) t = &s[i];
871 else if (!strcmp(s[i].s_name, ".data")) d = &s[i];
872 else if (!strcmp(s[i].s_name, ".bss")) b = &s[i];
873 }
874 bcopy(&p[t->s_scnptr], (char *)ao->text_start, ao->tsize);
875 bcopy(&p[d->s_scnptr], (char *)ao->data_start, ao->dsize);
876#endif
877}
878#endif
879
880extern ui palJToKern[];
881
882JToKern(bootadr, rpb_percpu, free_pfn, k_argc, k_argv, envp)
883char * bootadr;
884ul rpb_percpu;
885ul free_pfn;
886ul k_argc;
887char **k_argv;
888char **envp;
889{
890 struct _kernel_params *kernel_params = (struct _kernel_params *) KSEG;
891 int i;
892
893 printf("k_argc = %d ", k_argc);
894 for (i = 0; i < k_argc; i++) {
895 printf("'%s' ", k_argv[i]);
896 }
897 printf("\n");
898
899/* rpb_percpu |= 0xfffffc0000000000;*/
900 kernel_params->bootadr = bootadr;
901 kernel_params->rpb_percpu = KSEG_TO_PHYS(rpb_percpu);
902 kernel_params->free_pfn = free_pfn;
903 kernel_params->argc = k_argc;
904 kernel_params->argv = (ul)k_argv;
905 kernel_params->envp = (ul)envp;
906 printf("jumping to kernel at 0x%x, (PCBB 0x%x pfn %d)\n", bootadr, rpb_percpu, free_pfn);
907 jToPal(KSEG_TO_PHYS((ul)palJToKern));
908 printf("returned from jToPal. Looping\n");
909 while(1) continue;
910}
911
912
913void jToPal(ul bootadr)
914{
915 cServe(bootadr, 0, CSERVE_K_JTOPAL);
916
917/*
918 * Make sure that floating point is enabled incase
919 * it was disabled by the user program.
920 */
921 wrfen(1);
922}
923
924
925int strcpy(char *dst, char *src)
926{
927 int i=0;
928 while(*src) {
929 *dst++ = *src++;
930 i++;
931 }
932 return i;
933}
934
935
936
937
938/* *****************************************
939 * Console I/O
940 * ******************************************/
941
942int numOpenDevices = 11;
943struct {
944 char name[128];
945} deviceState[32];
946
947#define BOOTDEVICE_NAME "SCSI 1 0 0 1 100"
948
949void DeviceOperation(long op,long channel, long count, long address, long block)
950{
951 AlphaAccess *k1Conf = (AlphaAccess *)
952 (__MAGIC_ZONE(0, 0, MAGIC_ZONE_EV5_ALIAS));
953
954 long pAddr;
955
956#if 0
957 printf("Console::DeviceRead count=0x%x address=0x%x block=0x%x\n",
958 count,address,block);
959#endif
960
961 if (strcmp(deviceState[channel].name, BOOTDEVICE_NAME )) {
962 panic("DeviceRead: only implemented for root disk \n");
963 }
964 pAddr = KSEG_TO_PHYS(address);
965 if (pAddr + count > simosConf.mem_size) {
966 panic("DeviceRead: request out of range \n");
967 }
968
969 k1Conf->diskCount = count;
970 k1Conf->diskPAddr = pAddr;
971 k1Conf->diskBlock = block;
972 k1Conf->diskOperation = op; /* launch */
973}
974
975
976
977/* *************************************************************************
978 * SimoS Console callbacks
979 * **************************************************/
980
981/* AXP manual 2-31 */
982#define CONSCB_GETC 0x1
983#define CONSCB_PUTS 0x2
984#define CONSCB_RESET_TERM 0x3
985#define CONSCB_SET_TERM_INT 0x4
986#define CONSCB_SET_TERM_CTL 0x5
987#define CONSCB_PROCESS_KEY 0x6
988
989#define CONSCB_OPEN 0x10
990#define CONSCB_CLOSE 0x11
991#define CONSCB_READ 0x13
992
993#define CONSCB_GETENV 0x22
994
995/* AXP manual 2-26 */
996
997#define ENV_BOOTED_DEV 0x4
998#define ENV_BOOTED_OSFLAGS 0x8
999
1000long CallBackDispatcher(long a0, long a1, long a2, long a3, long a4)
1001{
1002 int i;
1003 switch (a0) {
1004 case CONSCB_PUTS:
1005 for(i=0;i<a3;i++) {
1006 PutChar(*(char *)a2+i);
1007 }
1008 return a3;
1009 case CONSCB_GETENV:
1010 switch (a1) {
1011 case ENV_BOOTED_DEV:
1012 i = strcpy((char*)a2,BOOTDEVICE_NAME);
1013 break;
1014 case ENV_BOOTED_OSFLAGS:
1015 /*
1016 * 'c':ignores the sysconfigtab
1017 *
1018 * i= strcpy((char*)a2,"c");
1019 */
1020 i = strcpy((char*)a2,"");
1021 break;
1022 default:
1023 i = strcpy((char*)a2,"");
1024 printf ("GETENV unsupported option %d\n", a1);
1025 break;
1026 }
1027 if (i > a3) {
1028 panic("CONSCB_GETENV overwrote buffer \n");
1029 }
1030 return i;
1031 case CONSCB_OPEN:
1032 bcopy((char*)a1,deviceState[numOpenDevices].name,a2);
1033 deviceState[numOpenDevices].name[a2] = '\0';
1034 printf("CONSOLE OPEN : %s --> success \n",
1035 deviceState[numOpenDevices].name);
1036 return numOpenDevices++;
1037
1038 case CONSCB_READ:
1039 DeviceOperation(a0,a1,a2,a3,a4);
1040 break;
1041 case CONSCB_CLOSE:
1042 break;
1043 default:
1044 panic("cher (%x,%x,%x,%x) \n",
1045 a0,a1,a2,a3);
1046 }
1047 return 0;
1048}
1049
1050long CallBackFixup(int a0, int a1, int a2)
1051{
1052 printf("CallbackFixup %x %x \n",a0,a1);
1053
1054#if 0
1055 if (first[FIRST(a1)]==0) {
1056 first[FIRST(a1)] = KPTE(PFN(reservedFixup));
1057 } else {
1058 panic("CallBakcfixup\n");
1059 }
1060 second[SECOND(a1)] = KPTE(PFN(third_rpb)); /* Region 0 */
1061 printf("Fixup: FISRT(a1)=0x%x SECOND(a1)=0x%x THIRD(a1)=0x%x\n",
1062 FIRST(a1),SECOND(a1),THIRD(a1));
1063
1064#endif
1065 return 0;
1066}
1067
1068
1069
1070
1071
1072void SlaveCmd(int cpu, struct rpb_percpu *my_rpb)
1073{
1074/* extern void palJToSlave[]; */
1075 extern unsigned int palJToSlave[];
1076
1077
1078 my_rpb->rpb_state |= STATE_BIP;
1079 my_rpb->rpb_state &= ~STATE_RC;
1080
1081 SpinLock(&theLock);
1082 printf("SlaveCmd: restart %x %x vptb %x my_rpb %x my_rpb_phys %x\n",
1083 rpb->rpb_restart,
1084 rpb->rpb_restart_pv,
1085 rpb->rpb_vptb, my_rpb,
1086 KSEG_TO_PHYS(my_rpb));
1087 SpinUnlock(&theLock);
1088
1089 cServe(KSEG_TO_PHYS((ul)palJToSlave),
1090 (ul)rpb->rpb_restart,
1091 CSERVE_K_JTOPAL,
1092 rpb->rpb_restart_pv,
1093 rpb->rpb_vptb,
1094 KSEG_TO_PHYS(my_rpb));
1095}
1096
1097void SlaveLoop( int cpu)
1098{
1099 int size = ROUNDUP128(sizeof(struct rpb_percpu));
1100 struct rpb_percpu *my_rpb = (struct rpb_percpu*)
1101 ((ul)rpb_percpu + size*cpu);
1102
1103
1104 SpinLock(&theLock);
1105 if (cpu==0) {
1106 panic("CPU�0 entering slaveLoop. Reenetering the console. HOSED \n");
1107 } else {
1108 printf("Entering slaveloop for cpu %d my_rpb=%x \n",cpu,my_rpb);
1109 }
1110 SpinUnlock(&theLock);
1111 while(1) {
1112 int i;
1113 for (i=0; i < 1000000 ; i++) {
1114 if (my_rpb->rpb_iccb.iccb_rxlen) {
1115 SpinLock(&theLock);
1116 printf("Slave CPU %d console command %s",
1117 cpu,my_rpb->rpb_iccb.iccb_rxbuf);
1118 SpinUnlock(&theLock);
1119 SlaveCmd(cpu,my_rpb);
1120 panic("SlaveCmd returned \n");
1121 }
1122 }
1123 printf("*");
1124 }
1125}
1126
2
3/* ******************************************
4 * SimOS SRM Console
5 *
6 * Derived from Lance Berc's SRM console
7 * for the SRC XXM�Machine
8 * ******************************************/
9
10
11/* from simos */
12typedef unsigned long long uint64;
13#include "machine_defs.h"
14#include "new_aouthdr.h"
15#include "alpha_access.h"
16#if 0
17#include "srcmax.h"
18#endif
19
20/* from ../h */
21#include "lib.h"
22#include "rpb.h"
23#include "cserve.h"
24
25
26#define CONS_INT_TX 0x01 /* interrupt enable / state bits */
27#define CONS_INT_RX 0x02
28
29#define KSEG 0xfffffc0000000000
30#define K1BASE 0xfffffc8000000000
31#define KSEG_TO_PHYS(x)(((ul)x) & ~KSEG)
32
33#define CDR ((volatile DevConsoleRegisters *) \
34 (__MAGIC_ZONE(0, 0, MAGIC_ZONE_BDOOR_DEV) + __MAGIC_BDOOR_CNSLE_OFFS))
35
36
37#define PHYS_TO_K1(_x) (K1BASE|(_x))
38
39#define AOUT_LOAD_ADDR (KSEG|0xf000)
40
41#define ROUNDUP8(x) ((ul)(((ul)x)+7) & ~7)
42#define ROUNDUP128(x) ((ul)(((ul)x)+127) & ~127)
43#define ROUNDUP8K(x) ((ul)(((ul)(x))+8191) & ~8191)
44
45#define FIRST(x) ((((ul)(x)) >> 33) & 0x3ff)
46#define SECOND(x) ((((ul)(x)) >> 23) & 0x3ff)
47#define THIRD(x) ((((ul)(x)) >> 13) & 0x3ff)
48#define THIRD_XXX(x) ((((ul)(x)) >> 13) & 0xfff)
49#define PFN(x) ((((ul)(x) & ~KSEG) >> 13))
50
51/* Kernel write | kernel read | valid */
52#define KPTE(x) ((ul)((((ul)(x)) << 32) | 0x1101))
53
54#define HWRPB_PAGES 4
55#define MDT_BITMAP_PAGES 4
56
57#define CSERVE_K_JTOKERN 0x18
58
59#define NUM_KERNEL_THIRD (4)
60
61
62static unixBoot(int go, int argc, char **argv);
63void jToPal(ul bootadr);
64void SlaveLoop(int cpu);
65
66
67AlphaAccess simosConf;
68
69/* **************************************************************
70 * Console callbacks use VMS calling conventions
71 * read AXP manual, 2-64.
72 * ***************************************************************/
73typedef struct OpenVMSFunc {
74 long dummy;
75 long func;
76}OpenVMSFunc;
77
78OpenVMSFunc callbackFunc, fixupFunc;
79
80
81
82
83ul theLock;
84
85
86extern void SpinLock(ul *lock);
87#define SpinUnlock(_x) *(_x) = 0;
88
89struct _kernel_params {
90 char *bootadr;
91 ul rpb_percpu;
92 ul free_pfn;
93 ul argc;
94 ul argv;
95 ul envp; /* NULL */
96};
97
98
99extern consoleCallback[];
100extern consoleFixup[];
101long CallBackDispatcher();
102long CallBackFixup();
103
104/*
105 * simos console output
106 */
107
108void InitConsole(void)
109{
110#if 0
111 CDR->intr_status =(DevRegister)(DEV_CNSLE_RX_INTR |DEV_CNSLE_TX_INTR);
112#endif
113}
114
115void PutChar(char c)
116{
117#if 0
118 CDR->data = c;
119#endif
120#if 0
121 *(int*) PHYS_TO_K1(SLOT_D_COM1<<5) = c;
122#endif
123 AlphaAccess *k1Conf = (AlphaAccess *)(__MAGIC_ZONE(0, 0, MAGIC_ZONE_EV5_ALIAS));
124 k1Conf->outputChar = c;
125
126}
127
128
129int passArgs(int argc)
130{
131 ;
132}
133
134
135main(int argc, char **argv)
136{
137 int x,i;
138 AlphaAccess *k1Conf = (AlphaAccess *)(__MAGIC_ZONE(0, 0, MAGIC_ZONE_EV5_ALIAS));
139 ui *k1ptr,*ksegptr;
140
141
142 InitConsole();
143 printf("SimOS console \n");
144 /*
145 * get configuration from backdoor
146 */
147 simosConf.last_offset = k1Conf->last_offset;
148 printf(" Got simosConfiguration %d \n",simosConf.last_offset);
149
150 for (i=1;i<=simosConf.last_offset/4;i++) {
151 ui *k1ptr = (ui*)k1Conf + i;
152 ui *ksegptr = (ui*)(&simosConf.last_offset)+i;
153 *ksegptr = *k1ptr;
154
155 }
156
157 if (simosConf.version != ALPHA_ACCESS_VERSION) {
158 panic("Console version mismatch. Console expects %d. SimOS has %d \n",
159 ALPHA_ACCESS_VERSION,simosConf.version);
160 }
161
162
163 /*
164 * setup arguments to kernel
165 */
166 unixBoot(1,argc,argv);
167
168 x = *(volatile int *)(K1BASE-4);
169 while(1) continue;
170 return x;
171}
172
173/*
174 * BOOTING
175 */
176struct rpb xxm_rpb = {
177 NULL, /* 000: physical self-reference */
178 'H'|('W'<<8)|('R'<<16)|('P'<<24)|('B'<<32), /* 008: contains string "HWRPB" */
179 6, /* 010: HWRPB version number */
180 /* the byte count is wrong, but who needs it? - lance */
181 0, /* 018: bytes in RPB perCPU CTB CRB MEDSC */
182 0, /* 020: primary cpu id */
183 8192, /* 028: page size in bytes */
184 43, /* 030: number of phys addr bits */
185 127, /* 038: max valid ASN */
186 {'0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '1'}, /* 040: system serial num: 10 ascii chars */
187#ifdef undef
188/* To be legitimate, the following system type and variation are correct for the XXM.
189 But there are too many #ifdefs etc to deal with in Unix, so we tell the kernel
190 that we're an Avanti, which is similar enough.
191 */
192 31, /* 050: system type - XXM is now in the Alpha SRM */
193 (1 << 10) | (2<<1),/* 058: system variation - XXM w/EV5 & embeded console */
194#endif
195#if 0
196 0x12, /* 050: system type - masquarade as some random 21064 */
197#endif
198 12, /* masquerade a DEC_3000_500 (bugnion) */
199 (2<<1), /* 058: system variation */
200 'c'|('o'<<8)|('o'<<16)|('l'<< 24), /* 060: system revision */
201 1024*4096, /* 068: scaled interval clock intr freq OVERRIDEN*/
202 0, /* 070: cycle counter frequency */
203 0x200000000, /* 078: virtual page table base */
204 0, /* 080: reserved */
205 0, /* 088: offset to translation buffer hint */
206 1, /* 090: number of processor slots OVERRIDDEN*/
207 sizeof(struct rpb_percpu), /* 098: per-cpu slot size. OVERRIDDEN */
208 0, /* 0A0: offset to per_cpu slots */
209 1, /* 0A8: number of CTBs */
210#ifdef bugnion_gone
211 sizeof(struct rpb_ctb), /* 0B0: bytes in largest CTB */
212#else
213 sizeof(struct ctb_tt),
214#endif
215 0, /* 0B8: offset to CTB (cons term block) */
216 0, /* 0C0: offset to CRB (cons routine block) */
217 0, /* 0C8: offset to memory descriptor table */
218 0, /* 0D0: offset to config data block */
219 0, /* 0D8: offset to FRU table */
220 0, /* 0E0: virt addr of save term routine */
221 0, /* 0E8: proc value for save term routine */
222 0, /* 0F0: virt addr of restore term routine */
223 0, /* 0F8: proc value for restore term routine */
224 0, /* 100: virt addr of CPU restart routine */
225 0, /* 108: proc value for CPU restart routine */
226 0, /* 110: used to determine presence of kdebug */
227 0, /* 118: reserved for hardware */
228/* the checksum is wrong, but who needs it? - lance */
229 0, /* 120: checksum of prior entries in rpb */
230 0, /* 128: receive ready bitmask */
231 0, /* 130: transmit ready bitmask */
232 0, /* 138: Dynamic System Recog. offset */
233};
234
235ul xxm_tbb[] = { 0x1e1e1e1e1e1e1e1e, 0x1e1e1e1e1e1e1e1e, 0x1e1e1e1e1e1e1e1e, 0x1e1e1e1e1e1e1e1e,
236 0x1e1e1e1e1e1e1e1e, 0x1e1e1e1e1e1e1e1e, 0x1e1e1e1e1e1e1e1e, 0x1e1e1e1e1e1e1e1e};
237
238struct rpb_percpu xxm_rpb_percpu = {
239 {0,0,0,0,0,0,0,{0,0},{0,0,0,0,0,0,0,0}}, /* 000: boot/restart HWPCB */
240 (STATE_PA | STATE_PP | STATE_CV | STATE_PV | STATE_PMV | STATE_PL), /* 080: per-cpu state bits */
241 0xc000, /* 088: palcode memory length */
242 0x2000, /* 090: palcode scratch length */
243 0x4000, /* 098: phys addr of palcode mem space */
244 0x2000, /* 0A0: phys addr of palcode scratch space */
245 (2 << 16) | (5 << 8) | 1, /* 0A8: PALcode rev required */
246 5|(2<<32), /* 0B0: processor type */
247 7, /* 0B8: processor variation */
248 'D'|('a'<<8)|('v'<<16)|('e'<<24), /* 0C0: processor revision */
249 {'D','a','v','e','C','o','n','r','o','y',0,0,0,0,0,0}, /* 0C8: proc serial num: 10 ascii chars */
250 0, /* 0D8: phys addr of logout area */
251 0, /* 0E0: length in bytes of logout area */
252 0, /* 0E8: halt pcb base */
253 0, /* 0F0: halt pc */
254 0, /* 0F8: halt ps */
255 0, /* 100: halt arg list (R25) */
256 0, /* 108: halt return address (R26) */
257 0, /* 110: halt procedure value (R27) */
258 0, /* 118: reason for halt */
259 0, /* 120: for software */
260 {0}, /* 128: inter-console communications buffer */
261 {1,0,5,0,0,0,0,0,0,0,0,0,0,0,0,0}, /* 1D0: PALcode revs available */
262 0 /* 250: reserved for arch use */
263/* the dump stack grows from the end of the rpb page not to reach here */
264};
265
266struct _xxm_rpb_mdt {
267 long rpb_checksum; /* 000: checksum of entire mem desc table */
268 long rpb_impaddr; /* 008: PA of implementation dep info */
269 long rpb_numcl; /* 010: number of clusters */
270 struct rpb_cluster rpb_cluster[3]; /* first instance of a cluster */
271};
272
273struct _xxm_rpb_mdt xxm_rpb_mdt = {
274 0, /* 000: checksum of entire mem desc table */
275 0, /* 008: PA of implementation dep info */
276 0, /* 010: number of clusters */
277 {{ 0, /* 000: starting PFN of this cluster */
278 0, /* 008: count of PFNs in this cluster */
279 0, /* 010: count of tested PFNs in cluster */
280 0, /* 018: va of bitmap */
281 0, /* 020: pa of bitmap */
282 0, /* 028: checksum of bitmap */
283 1 /* 030: usage of cluster */
284 },
285 { 0, /* 000: starting PFN of this cluster */
286 0, /* 008: count of PFNs in this cluster */
287 0, /* 010: count of tested PFNs in cluster */
288 0, /* 018: va of bitmap */
289 0, /* 020: pa of bitmap */
290 0, /* 028: checksum of bitmap */
291 0 /* 030: usage of cluster */
292 },
293 { 0, /* 000: starting PFN of this cluster */
294 0, /* 008: count of PFNs in this cluster */
295 0, /* 010: count of tested PFNs in cluster */
296 0, /* 018: va of bitmap */
297 0, /* 020: pa of bitmap */
298 0, /* 028: checksum of bitmap */
299 0 /* 030: usage of cluster */
300 }}
301};
302
303/* constants for slotinfo bus_type subfield */
304#define SLOTINFO_TC 0
305#define SLOTINFO_ISA 1
306#define SLOTINFO_EISA 2
307#define SLOTINFO_PCI 3
308
309struct rpb_ctb xxm_rpb_ctb = {
310 CONS_DZ, /* 000: console type */
311 0, /* 008: console unit */
312 0, /* 010: reserved */
313 0 /* 018: byte length of device dep portion */
314};
315
316/* we don't do any fixup (aka relocate the console) - we hope */
317struct rpb_crb xxm_rpb_crb = {
318 0, /* va of call-back dispatch rtn */
319 0, /* pa of call-back dispatch rtn */
320 0, /* va of call-back fixup rtn */
321 0, /* pa of call-back fixup rtn */
322 0, /* number of entries in phys/virt map */
323 0 /* Number of pages to be mapped */
324};
325
326struct _rpb_name {
327 unsigned long length;
328 char name[16];
329};
330
331extern struct _rpb_name xxm_name;
332
333struct rpb_dsr xxm_rpb_dsr = {
334 0,
335 0,
336 0,
337};
338
339struct _rpb_name xxm_name = {
340 16,
341 {'D','E','C',' ','S','R','C',' ','X','X','M',' ','D','G','C',0},
342};
343
344/* XXM has one LURT entry - 1050 is for workstations, 1100 is servers (and is needed for CXX) */
345long xxm_lurt[10] = { 9, 12, -1, -1, -1, -1, -1, -1, 1100, 1100 };
346
347ul unix_boot_mem;
348unsigned long bootadr;
349#if 0
350unsigned long aout_bss_addr, aout_bss_size, aout_entry, aout_text_start, aout_data_addr;
351#endif
352char **kargv;
353int kargc;
354ul free_pfn;
355struct rpb_percpu *rpb_percpu;
356
357
358#define MAX_CPUS 32
359
360ul bootStrapImpure[MAX_CPUS];
361
362
363char *unix_boot_alloc(int pages)
364{
365 char *ret = (char *) unix_boot_mem;
366 unix_boot_mem += (pages * 8192);
367 return ret;
368}
369
370ul *first = 0;
371ul *third_rpb = 0;
372ul *reservedFixup = 0;
373
374struct rpb *rpb;
375
376unixBoot(int go, int argc, char **argv)
377{
378 ul *second, *third_kernel, ptr, *tbb, size, *percpu_logout;
379 unsigned char *mdt_bitmap;
380 long *lp1, *lp2, sum;
381 int i, cl;
382 int kern_first_page;
383 int mem_size = simosConf.mem_size;
384
385 int mem_pages = mem_size / 8192, cons_pages;
386 ul kernel_bytes, ksp, kernel_end, *unix_kernel_stack, bss, ksp_bottom, ksp_top;
387 struct rpb_ctb *rpb_ctb;
388 struct ctb_tt *ctb_tt;
389 struct rpb_dsr *rpb_dsr;
390 struct rpb_crb *rpb_crb;
391 struct _xxm_rpb_mdt *rpb_mdt;
392 int *rpb_lurt;
393 char *rpb_name;
394 ul nextPtr;
395
396 printf( "memsize %x pages %x \n",mem_size,mem_pages);
397
398
399
400#ifdef notnow
401 if (unixArgs()) return;
402#endif
403
404 /* Allocate:
405 * two pages for the HWRPB
406 * five page table pages:
407 * 1: First level page table
408 * 1: Second level page table
409 * 1: Third level page table for HWRPB
410 * 2: Third level page table for kernel (for up to 16MB)
411 * set up the page tables
412 * load the kernel at the physical address 0x230000
413 * build the HWRPB
414 * set up memory descriptor table to give up the
415 * physical memory between the end of the page
416 * tables and the start of the kernel
417 * enable kseg addressing
418 * jump to the kernel
419 */
420
421 unix_boot_mem = ROUNDUP8K(&_end);
422
423 printf("First free page after ROM 0x%x\n", unix_boot_mem);
424
425 rpb = (struct rpb *) unix_boot_alloc( HWRPB_PAGES);
426
427 mdt_bitmap = (unsigned char *) unix_boot_alloc(MDT_BITMAP_PAGES);
428 first = (ul *)unix_boot_alloc(1);
429 second = (ul *)unix_boot_alloc(1);
430 third_rpb = (ul *)unix_boot_alloc(1);
431 reservedFixup = (ul*) unix_boot_alloc(1);
432 third_kernel = (ul *)unix_boot_alloc(NUM_KERNEL_THIRD);
433 percpu_logout = (ul*)unix_boot_alloc(1);
434
435
436 cons_pages = KSEG_TO_PHYS(unix_boot_mem) / 8192;
437
438 /* Set up the page tables */
439 bzero((char *)first, 8192);
440 bzero((char *)second, 8192);
441 bzero((char *)reservedFixup,8192);
442 bzero((char *)third_rpb, HWRPB_PAGES * 8192);
443 bzero((char *)third_kernel, 8192 * NUM_KERNEL_THIRD);
444
445 first[0] = KPTE(PFN(second));
446 first[1] = KPTE(PFN(first)); /* Region 3 */
447
448 second[SECOND(0x10000000)] = KPTE(PFN(third_rpb)); /* Region 0 */
449 for (i=0;i<NUM_KERNEL_THIRD;i++) {
450 second[SECOND(0x20000000)+i] = KPTE(PFN(third_kernel)+i); /* Region 1 */
451 }
452 second[SECOND(0x40000000)] = KPTE(PFN(second)); /* Region 2 */
453
454
455 {
456
457 /* For some obscure reason, Dec Unix's database read
458 * from /etc/sysconfigtab is written to this fixed
459 * mapped memory location. Go figure, since it is
460 * not initialized by the console. Maybe it is
461 * to look at the database from the console
462 * after a boot/crash.
463 *
464 * Black magic to estimate the max size. SEGVs on overflow
465 * bugnion
466 */
467
468#define DATABASE_BASE 0x20000000
469#ifdef not_not
470#define DATABASE_END 0x20230000 /* don't need all that */
471#endif
472
473#define DATABASE_END 0x20020000
474
475 int i;
476 ul *dbPage = (ul*)unix_boot_alloc(1);
477 second[SECOND(DATABASE_BASE)] = KPTE(PFN(dbPage));
478 for (i=DATABASE_BASE; i <DATABASE_END ; i+= 8096) {
479 ul *db = (ul*)unix_boot_alloc(1);
480 dbPage[THIRD(i)] = KPTE(PFN(db));
481 }
482 }
483
484 /* Region 0 */
485 /* Map the HWRPB */
486 for (i = 0; i < HWRPB_PAGES; i++) third_rpb[i] = KPTE(PFN(rpb) + i);
487
488 /* Map the MDT bitmap table */
489 for (i=0;i<MDT_BITMAP_PAGES;i++) {
490 third_rpb[HWRPB_PAGES+i] = KPTE(PFN(mdt_bitmap)+i);
491 }
492
493 /* Protect the PAL pages */
494 for (i = 1; i < PFN(first); i++) third_rpb[HWRPB_PAGES + MDT_BITMAP_PAGES + i] = KPTE(i);
495
496 /* Set up third_kernel after it's loaded, when we know where it is */
497
498#ifdef original__xxm
499 if (unixLoadKernel(AOUT_LOAD_ADDR, argv[1]) == -1) return;
500 aoutfixup(AOUT_LOAD_ADDR);
501#else
502 /* aoutfixup(simosConf.kernelFileHdr); */
503#endif
504#if 0
505 bss = aout_bss_addr;
506
507 kern_first_page = (KSEG_TO_PHYS(aout_text_start) / 8192);
508 kernel_end = ksp_top = ROUNDUP8K(aout_bss_addr + aout_bss_size);
509 bootadr = aout_entry;
510#endif
511
512 kern_first_page = (KSEG_TO_PHYS(simosConf.kernStart)/8192);
513 kernel_end = ksp_top = ROUNDUP8K(simosConf.kernEnd);
514 bootadr = simosConf.entryPoint;
515
516
517 printf("HWRPB 0x%x l1pt 0x%x l2pt 0x%x l3pt_rpb 0x%x l3pt_kernel 0x%x l2reserv 0x%x\n",
518 rpb, first, second, third_rpb, third_kernel,reservedFixup);
519 if (kernel_end - simosConf.kernStart > (0x800000*NUM_KERNEL_THIRD)) {
520 printf("Kernel is more than 8MB 0x%x - 0x%x = 0x%x\n",
521 kernel_end, simosConf.kernStart,
522 kernel_end -simosConf.kernStart );
523 panic("kernel too big\n");
524
525 }
526 /* Map the kernel's pages into the third level of region 2 */
527
528 for (ptr = simosConf.kernStart; ptr < kernel_end; ptr += 8192) {
529
530 third_kernel[THIRD_XXX(ptr)] = KPTE(PFN(ptr));
531 }
532 /* blow 2 pages of phys mem for guards since it maintains 1-to-1 mapping */
533 ksp = ksp_top + (3 * 8192);
534 if (ksp - simosConf.kernStart > (0x800000*NUM_KERNEL_THIRD)) {
535 printf("Kernel stack pushd us over 8MB\n");
536 panic("ksp too big\n");
537 }
538 if (THIRD_XXX((ul)ksp_top) > NUM_KERNEL_THIRD * 1024) {
539 panic("increase NUM_KERNEL_THIRD, and change THIRD_XXX\n");
540 }
541 ptr = (ul) ksp_top;
542 bzero((char *)ptr, 8192 * 2);
543 third_kernel[THIRD_XXX(ptr)] = 0; /* Stack Guard Page */
544 ptr += 8192;
545 third_kernel[THIRD_XXX(ptr)] = KPTE(PFN(ptr)); /* Kernel Stack Pages */
546 ptr += 8192;
547 third_kernel[THIRD_XXX(ptr)] = KPTE(PFN(ptr));
548 ptr += 8192;
549 third_kernel[THIRD_XXX(ptr)] = 0; /* Stack Guard Page */
550
551 /* put argv into the bottom of the stack - argv starts at 1 because
552 * the command thatr got us here (i.e. "unixboot) is in argv[0].
553 */
554 ksp -= 8; /* Back up one longword */
555 ksp -= argc * sizeof(char *); /* Make room for argv */
556 kargv = (char **) ksp;
557 for (i = 1; i < argc; i++) { /* Copy arguments to stack */
558 ksp -= ((strlen(argv[i]) + 1) + 7) & ~0x7;
559 kargv[i-1] = (char *) ksp;
560 strcpy(kargv[i-1], argv[i]);
561 }
562 kargc = i - 1;
563 kargv[kargc] = NULL; /* just to be sure; doesn't seem to be used */
564 ksp -= sizeof(char *); /* point above last arg for no real reason */
565
566 free_pfn = PFN(ptr);
567
568 bcopy((char *)&xxm_rpb, (char *)rpb, sizeof(struct rpb));
569
570 rpb->rpb_selfref = (struct rpb *) KSEG_TO_PHYS(rpb);
571 rpb->rpb_string = 0x0000004250525748;
572
573 tbb = (ul *) (((char *) rpb) + ROUNDUP8(sizeof(struct rpb)));
574 rpb->rpb_trans_off = (ul)tbb - (ul)rpb;
575 bcopy((char *)xxm_tbb, (char *)tbb, sizeof(xxm_tbb));
576
577
578 /*
579 * rpb_counter. Use to determine timeouts in OS.
580 * XXX must be patched after a checkpoint restore (I guess)
581 */
582
583 printf("CPU Clock at %d MHz IntrClockFrequency=%d \n", simosConf.cpuClock,simosConf.intrClockFrequency);
584 rpb->rpb_counter = simosConf.cpuClock * 1000 * 1000;
585
586 /*
587 * By definition, the rpb_clock is scaled by 4096 (in hz)
588 */
589 rpb->rpb_clock = simosConf.intrClockFrequency * 4096;
590
591
592
593 /*
594 * Per CPU Slots. Multiprocessor support.
595 */
596 {
597 int i;
598 int size = ROUNDUP128(sizeof(struct rpb_percpu));
599
600 printf("Booting with %d processor(s) \n",simosConf.numCPUs);
601
602 rpb->rpb_numprocs = simosConf.numCPUs;
603 rpb->rpb_slotsize = size;
604 rpb_percpu = (struct rpb_percpu *)
605 ROUNDUP128(((ul) tbb) +(sizeof(xxm_tbb)));
606
607 rpb->rpb_percpu_off = (ul)rpb_percpu - (ul)rpb;
608
609 for (i=0;i<simosConf.numCPUs;i++) {
610 struct rpb_percpu *thisCPU = (struct rpb_percpu*)
611 ((ul)rpb_percpu + size*i);
612
613 bzero((char *)thisCPU, size);
614 bcopy((char *)&xxm_rpb_percpu,
615 (char *)thisCPU,
616 sizeof(struct rpb_percpu));
617
618 thisCPU->rpb_pcb.rpb_ksp = ksp;
619 thisCPU->rpb_pcb.rpb_ptbr = PFN(first);
620
621 thisCPU->rpb_logout = KSEG_TO_PHYS(percpu_logout);
622 thisCPU->rpb_logout_len = 8192;
623
624/* thisCPU->rpb_pcb.rpb_ptbr = PFN(second);*/
625
626 printf("KSP: 0x%x PTBR 0x%x\n", thisCPU->rpb_pcb.rpb_ksp, thisCPU->rpb_pcb.rpb_ptbr);
627
628 if (i) {
629 bootStrapImpure[i] = (ul)unix_boot_alloc(1);
630 }
631
632 }
633
634 nextPtr = (ul)rpb_percpu + size*simosConf.numCPUs;
635 }
636
637 /*
638 * Console Terminal Block
639 */
640
641
642 rpb_ctb = (struct rpb_ctb *) nextPtr;
643 ctb_tt = (struct ctb_tt*) rpb_ctb;
644
645 rpb->rpb_ctb_off = ((ul)rpb_ctb) - (ul)rpb;
646 rpb->rpb_ctb_size = sizeof(struct rpb_ctb);
647
648 bzero((char *)rpb_ctb, sizeof(struct ctb_tt));
649
650#ifdef original_xxm
651 if (tga_slot == -1)
652 rpb_ctb->rpb_type = CONS_DZ;
653 else {
654 rpb_ctb->rpb_type = CONS_GRPH;
655 rpb_ctb->rpb_unit = (SLOTINFO_PCI << 16) | (0 << 8) | tga_slot;
656 }
657#else
658 rpb_ctb->rpb_type = CONS_DZ;
659#endif
660
661 rpb_ctb->rpb_length = sizeof(ctb_tt)-sizeof(rpb_ctb);
662
663 /*
664 * uart initizliation
665 */
666 ctb_tt->ctb_csr = 0;
667 ctb_tt->ctb_tivec = 0x6c0; /* matches tlaser pal code */
668 ctb_tt->ctb_rivec = 0x680; /* matches tlaser pal code */
669 ctb_tt->ctb_baud = 9600;
670 ctb_tt->ctb_put_sts = 0;
671 ctb_tt->ctb_get_sts = 0;
672
673
674 rpb_crb = (struct rpb_crb *) (((ul)rpb_ctb) + sizeof(struct ctb_tt));
675 rpb->rpb_crb_off = ((ul)rpb_crb) - (ul)rpb;
676
677 bzero((char *)rpb_crb, sizeof(struct rpb_crb));
678 /*
679 * console callback stuff (simos)
680 */
681
682 rpb_crb->rpb_num = 1;
683 rpb_crb->rpb_mapped_pages = HWRPB_PAGES;
684 rpb_crb->rpb_map[0].rpb_virt = 0x10000000;
685 rpb_crb->rpb_map[0].rpb_phys = ((ul)rpb) & ~0x1fff;
686 rpb_crb->rpb_map[0].rpb_pgcount = HWRPB_PAGES;
687
688
689 printf("Console Callback at 0x%x, fixup at 0x%x \n",
690 rpb_crb->rpb_va_disp,
691 rpb_crb->rpb_va_fixup );
692
693 rpb_mdt = (struct _xxm_rpb_mdt *) (((ul)rpb_crb) + sizeof(struct rpb_crb));
694 rpb->rpb_mdt_off = (ul)rpb_mdt - (ul)rpb;
695 bcopy((char *)&xxm_rpb_mdt, (char *)rpb_mdt, sizeof(struct _xxm_rpb_mdt));
696
697
698 cl = 0;
699#ifdef undef
700 /* Until Digital Unix can handle it, account all pages below the kernel
701 * as "console" memory. */
702 rpb_mdt->rpb_cluster[cl].rpb_pfncount = cons_pages;
703#endif
704 rpb_mdt->rpb_cluster[cl].rpb_pfncount = kern_first_page;
705 cl++;
706
707 rpb_mdt->rpb_cluster[cl].rpb_pfn = kern_first_page;
708 rpb_mdt->rpb_cluster[cl].rpb_pfncount = mem_pages - kern_first_page;
709 rpb_mdt->rpb_cluster[cl].rpb_pfntested=rpb_mdt->rpb_cluster[cl].rpb_pfncount;
710 rpb_mdt->rpb_cluster[cl].rpb_pa = KSEG_TO_PHYS(mdt_bitmap);
711 rpb_mdt->rpb_cluster[cl].rpb_va = 0x10000000 + HWRPB_PAGES * 8192;
712 cl++;
713
714#ifdef undef
715 /* The stupid Unix kernel needs to have all mdt clusters in ascending
716 * order, and the last cluster is used to compute the top of memory.
717 * It can't make use of memory between the console and the kernel.
718 */
719 rpb_mdt->rpb_cluster[cl].rpb_pfn = cons_pages;
720 rpb_mdt->rpb_cluster[cl].rpb_pfncount = kern_first_page - cons_pages;
721 rpb_mdt->rpb_cluster[cl].rpb_pfntested=rpb_mdt->rpb_cluster[cl].rpb_pfncount;
722 rpb_mdt->rpb_cluster[cl].rpb_pa = KSEG_TO_PHYS(mdt_bitmap);
723 rpb_mdt->rpb_cluster[cl].rpb_va = 0x10000000 + HWRPB_PAGES * 8192;
724 cl++;
725#endif
726
727 rpb_mdt->rpb_numcl = cl;
728
729 for (i = 0; i < cl; i++)
730 printf("Memory cluster %d [%d - %d]\n", i, rpb_mdt->rpb_cluster[i].rpb_pfn, rpb_mdt->rpb_cluster[i].rpb_pfncount);
731
732
733
734 /* Checksum the rpb for good luck */
735 sum = 0;
736 lp1 = (long *)&rpb_mdt->rpb_impaddr;
737 lp2 = (long *)&rpb_mdt->rpb_cluster[cl];
738 while (lp1 < lp2) sum += *lp1++;
739 rpb_mdt->rpb_checksum = sum;
740
741 /* XXX should checksum the cluster descriptors */
742
743 bzero((char *)mdt_bitmap, MDT_BITMAP_PAGES * 8192);
744 for (i = 0; i < mem_pages/8; i++) ((unsigned char *)mdt_bitmap)[i] = 0xff;
745
746 printf("Initalizing mdt_bitmap addr 0x%x mem_pages %x \n",
747 (long)mdt_bitmap,(long)mem_pages);
748
749 xxm_rpb.rpb_config_off = 0;
750 xxm_rpb.rpb_fru_off = 0;
751
752 rpb_dsr = (struct rpb_dsr *) (((ul)rpb_mdt) + sizeof(struct _xxm_rpb_mdt));
753 rpb->rpb_dsr_off = ((ul)rpb_dsr) - (ul)rpb;
754 bzero((char *)rpb_dsr, sizeof(struct rpb_dsr));
755 rpb_dsr->rpb_smm = 1578; /* Official XXM SMM number as per SRM */
756 rpb_dsr->rpb_smm = 1089; /* Official Alcor SMM number as per SRM */
757
758 rpb_lurt = (int *) ROUNDUP8(((ul)rpb_dsr) + sizeof(struct rpb_dsr));
759 rpb_dsr->rpb_lurt_off = ((ul) rpb_lurt) - (ul) rpb_dsr;
760 bcopy((char *)xxm_lurt, (char *)rpb_lurt, sizeof(xxm_lurt));
761
762 rpb_name = (char *) ROUNDUP8(((ul)rpb_lurt) + sizeof(xxm_lurt));
763 rpb_dsr->rpb_sysname_off = ((ul) rpb_name) - (ul) rpb_dsr;
764#define THENAME " SimOS ALPHA/EV5"
765 sum = sizeof(THENAME);
766 bcopy(THENAME, rpb_name, sum);
767 *(ul *)rpb_name = sizeof(THENAME); /* put in length field */
768
769 /* calculate size of rpb */
770 rpb->rpb_size = ((ul) &rpb_name[sum]) - (ul)rpb;
771
772 if (rpb->rpb_size > 8192*HWRPB_PAGES) {
773 panic("HWRPB_PAGES=%d too small for HWRPB !!! \n");
774 }
775
776
777 {
778 ul *ptr = (ul*)((char*)rpb_dsr + sizeof(struct rpb_dsr ));
779 rpb_crb->rpb_pa_disp = KSEG_TO_PHYS(ptr);
780 rpb_crb->rpb_va_disp = 0x10000000 + ((ul)ptr&(0x2000*HWRPB_PAGES-1));
781 printf("ConsoleDispatch at virt %x phys %x val %x\n",
782 rpb_crb->rpb_va_disp,
783 rpb_crb->rpb_pa_disp,
784 consoleCallback);
785 *ptr++ = 0;
786 *ptr++ = (ul) consoleCallback;
787 rpb_crb->rpb_pa_fixup = KSEG_TO_PHYS(ptr);
788 rpb_crb->rpb_va_fixup = 0x10000000 + ((ul)ptr& (0x2000*HWRPB_PAGES-1));
789 *ptr++ = 0;
790 *ptr++ = (ul) consoleFixup;
791 }
792
793
794 /* Checksum the rpb for good luck */
795 sum = 0;
796 lp1 = (long *)rpb;
797 lp2 = &rpb->rpb_checksum;
798 while (lp1 < lp2)
799 sum += *lp1++;
800 *lp2 = sum;
801
802
803 /*
804 * MP bootstrap
805 */
806
807 {
808 int i;
809 for (i=1;i<simosConf.numCPUs;i++) {
810 volatile AlphaAccess *k1Conf = (volatile AlphaAccess *)
811 (__MAGIC_ZONE(0, 0, MAGIC_ZONE_EV5_ALIAS));
812 SpinLock(&theLock);
813 printf("Bootstraping CPU %d with sp=0x%x \n",
814 i,bootStrapImpure[i]);
815 SpinUnlock(&theLock);
816 k1Conf->bootStrapImpure = bootStrapImpure[i];
817 k1Conf->bootStrapCPU = i;
818 }
819 }
820
821 /*
822 * Make sure that we are not stepping on the kernel
823 */
824 if ((ul)unix_boot_mem >= (ul)simosConf.kernStart) {
825 panic("CONSOLE: too much memory. Smashing kernel \n");
826 } else {
827 SpinLock(&theLock);
828 printf("unix_boot_mem ends at %x \n",unix_boot_mem);
829 SpinUnlock(&theLock);
830 }
831
832
833#ifdef undef
834#define CSERVE_K_JTOKERN 0x18
835 cServe(bootadr, (ul) rpb_percpu, CSERVE_K_JTOKERN, free_pfn);
836#endif
837
838 if (go) JToKern(bootadr, rpb_percpu, free_pfn, kargc, kargv, NULL);
839}
840
841
842#if 0
843aoutfixup(char *p)
844{
845 int i;
846 unsigned long rem, len, off, dst;
847
848
849 struct new_aouthdr *ao = (struct new_aouthdr *) &p[NEW_FILHSZ];
850#if 0
851 struct scnhdr *s = (struct scnhdr *) &p[FILHSZ + AOUTHSZ];
852 struct scnhdr *t, *d, *b;
853 printf("aoutfixup: %d sections \n",fh->f_nscns);
854#endif
855
856
857 aout_text_start = ((ul)ao->text_start_hi<<32) + ao->text_start;
858 aout_data_addr = ((ul)ao->data_start_hi<<32) + ao->data_start;
859 aout_bss_addr = ((ul)ao->bss_start_hi<<32) + ao->bss_start;
860 aout_bss_size = ((ul)ao->bsize_hi<<32) + ao->bsize;
861 aout_entry = ((ul)ao->entry_hi<<32) + ao->entry;
862
863 printf("_text 0x%16x %8d @ %08d\n", aout_text_start, ao->tsize,0 /* t->s_scnptr*/);
864 printf("_data 0x%16x %8d @ %08d\n", aout_data_addr, ao->dsize,0/* d->s_scnptr*/);
865 printf("_bss 0x%16x %8d\n", aout_bss_addr, ao->bsize);
866 printf("entry 0x%16x\n", aout_entry);
867#if 0
868 for (i = 0; i < fh->f_nscns; i++) {
869 printf("section %d %s \n",i,s[i].s_name);
870 if (!strcmp(s[i].s_name, ".text")) t = &s[i];
871 else if (!strcmp(s[i].s_name, ".data")) d = &s[i];
872 else if (!strcmp(s[i].s_name, ".bss")) b = &s[i];
873 }
874 bcopy(&p[t->s_scnptr], (char *)ao->text_start, ao->tsize);
875 bcopy(&p[d->s_scnptr], (char *)ao->data_start, ao->dsize);
876#endif
877}
878#endif
879
880extern ui palJToKern[];
881
882JToKern(bootadr, rpb_percpu, free_pfn, k_argc, k_argv, envp)
883char * bootadr;
884ul rpb_percpu;
885ul free_pfn;
886ul k_argc;
887char **k_argv;
888char **envp;
889{
890 struct _kernel_params *kernel_params = (struct _kernel_params *) KSEG;
891 int i;
892
893 printf("k_argc = %d ", k_argc);
894 for (i = 0; i < k_argc; i++) {
895 printf("'%s' ", k_argv[i]);
896 }
897 printf("\n");
898
899/* rpb_percpu |= 0xfffffc0000000000;*/
900 kernel_params->bootadr = bootadr;
901 kernel_params->rpb_percpu = KSEG_TO_PHYS(rpb_percpu);
902 kernel_params->free_pfn = free_pfn;
903 kernel_params->argc = k_argc;
904 kernel_params->argv = (ul)k_argv;
905 kernel_params->envp = (ul)envp;
906 printf("jumping to kernel at 0x%x, (PCBB 0x%x pfn %d)\n", bootadr, rpb_percpu, free_pfn);
907 jToPal(KSEG_TO_PHYS((ul)palJToKern));
908 printf("returned from jToPal. Looping\n");
909 while(1) continue;
910}
911
912
913void jToPal(ul bootadr)
914{
915 cServe(bootadr, 0, CSERVE_K_JTOPAL);
916
917/*
918 * Make sure that floating point is enabled incase
919 * it was disabled by the user program.
920 */
921 wrfen(1);
922}
923
924
925int strcpy(char *dst, char *src)
926{
927 int i=0;
928 while(*src) {
929 *dst++ = *src++;
930 i++;
931 }
932 return i;
933}
934
935
936
937
938/* *****************************************
939 * Console I/O
940 * ******************************************/
941
942int numOpenDevices = 11;
943struct {
944 char name[128];
945} deviceState[32];
946
947#define BOOTDEVICE_NAME "SCSI 1 0 0 1 100"
948
949void DeviceOperation(long op,long channel, long count, long address, long block)
950{
951 AlphaAccess *k1Conf = (AlphaAccess *)
952 (__MAGIC_ZONE(0, 0, MAGIC_ZONE_EV5_ALIAS));
953
954 long pAddr;
955
956#if 0
957 printf("Console::DeviceRead count=0x%x address=0x%x block=0x%x\n",
958 count,address,block);
959#endif
960
961 if (strcmp(deviceState[channel].name, BOOTDEVICE_NAME )) {
962 panic("DeviceRead: only implemented for root disk \n");
963 }
964 pAddr = KSEG_TO_PHYS(address);
965 if (pAddr + count > simosConf.mem_size) {
966 panic("DeviceRead: request out of range \n");
967 }
968
969 k1Conf->diskCount = count;
970 k1Conf->diskPAddr = pAddr;
971 k1Conf->diskBlock = block;
972 k1Conf->diskOperation = op; /* launch */
973}
974
975
976
977/* *************************************************************************
978 * SimoS Console callbacks
979 * **************************************************/
980
981/* AXP manual 2-31 */
982#define CONSCB_GETC 0x1
983#define CONSCB_PUTS 0x2
984#define CONSCB_RESET_TERM 0x3
985#define CONSCB_SET_TERM_INT 0x4
986#define CONSCB_SET_TERM_CTL 0x5
987#define CONSCB_PROCESS_KEY 0x6
988
989#define CONSCB_OPEN 0x10
990#define CONSCB_CLOSE 0x11
991#define CONSCB_READ 0x13
992
993#define CONSCB_GETENV 0x22
994
995/* AXP manual 2-26 */
996
997#define ENV_BOOTED_DEV 0x4
998#define ENV_BOOTED_OSFLAGS 0x8
999
1000long CallBackDispatcher(long a0, long a1, long a2, long a3, long a4)
1001{
1002 int i;
1003 switch (a0) {
1004 case CONSCB_PUTS:
1005 for(i=0;i<a3;i++) {
1006 PutChar(*(char *)a2+i);
1007 }
1008 return a3;
1009 case CONSCB_GETENV:
1010 switch (a1) {
1011 case ENV_BOOTED_DEV:
1012 i = strcpy((char*)a2,BOOTDEVICE_NAME);
1013 break;
1014 case ENV_BOOTED_OSFLAGS:
1015 /*
1016 * 'c':ignores the sysconfigtab
1017 *
1018 * i= strcpy((char*)a2,"c");
1019 */
1020 i = strcpy((char*)a2,"");
1021 break;
1022 default:
1023 i = strcpy((char*)a2,"");
1024 printf ("GETENV unsupported option %d\n", a1);
1025 break;
1026 }
1027 if (i > a3) {
1028 panic("CONSCB_GETENV overwrote buffer \n");
1029 }
1030 return i;
1031 case CONSCB_OPEN:
1032 bcopy((char*)a1,deviceState[numOpenDevices].name,a2);
1033 deviceState[numOpenDevices].name[a2] = '\0';
1034 printf("CONSOLE OPEN : %s --> success \n",
1035 deviceState[numOpenDevices].name);
1036 return numOpenDevices++;
1037
1038 case CONSCB_READ:
1039 DeviceOperation(a0,a1,a2,a3,a4);
1040 break;
1041 case CONSCB_CLOSE:
1042 break;
1043 default:
1044 panic("cher (%x,%x,%x,%x) \n",
1045 a0,a1,a2,a3);
1046 }
1047 return 0;
1048}
1049
1050long CallBackFixup(int a0, int a1, int a2)
1051{
1052 printf("CallbackFixup %x %x \n",a0,a1);
1053
1054#if 0
1055 if (first[FIRST(a1)]==0) {
1056 first[FIRST(a1)] = KPTE(PFN(reservedFixup));
1057 } else {
1058 panic("CallBakcfixup\n");
1059 }
1060 second[SECOND(a1)] = KPTE(PFN(third_rpb)); /* Region 0 */
1061 printf("Fixup: FISRT(a1)=0x%x SECOND(a1)=0x%x THIRD(a1)=0x%x\n",
1062 FIRST(a1),SECOND(a1),THIRD(a1));
1063
1064#endif
1065 return 0;
1066}
1067
1068
1069
1070
1071
1072void SlaveCmd(int cpu, struct rpb_percpu *my_rpb)
1073{
1074/* extern void palJToSlave[]; */
1075 extern unsigned int palJToSlave[];
1076
1077
1078 my_rpb->rpb_state |= STATE_BIP;
1079 my_rpb->rpb_state &= ~STATE_RC;
1080
1081 SpinLock(&theLock);
1082 printf("SlaveCmd: restart %x %x vptb %x my_rpb %x my_rpb_phys %x\n",
1083 rpb->rpb_restart,
1084 rpb->rpb_restart_pv,
1085 rpb->rpb_vptb, my_rpb,
1086 KSEG_TO_PHYS(my_rpb));
1087 SpinUnlock(&theLock);
1088
1089 cServe(KSEG_TO_PHYS((ul)palJToSlave),
1090 (ul)rpb->rpb_restart,
1091 CSERVE_K_JTOPAL,
1092 rpb->rpb_restart_pv,
1093 rpb->rpb_vptb,
1094 KSEG_TO_PHYS(my_rpb));
1095}
1096
1097void SlaveLoop( int cpu)
1098{
1099 int size = ROUNDUP128(sizeof(struct rpb_percpu));
1100 struct rpb_percpu *my_rpb = (struct rpb_percpu*)
1101 ((ul)rpb_percpu + size*cpu);
1102
1103
1104 SpinLock(&theLock);
1105 if (cpu==0) {
1106 panic("CPU�0 entering slaveLoop. Reenetering the console. HOSED \n");
1107 } else {
1108 printf("Entering slaveloop for cpu %d my_rpb=%x \n",cpu,my_rpb);
1109 }
1110 SpinUnlock(&theLock);
1111 while(1) {
1112 int i;
1113 for (i=0; i < 1000000 ; i++) {
1114 if (my_rpb->rpb_iccb.iccb_rxlen) {
1115 SpinLock(&theLock);
1116 printf("Slave CPU %d console command %s",
1117 cpu,my_rpb->rpb_iccb.iccb_rxbuf);
1118 SpinUnlock(&theLock);
1119 SlaveCmd(cpu,my_rpb);
1120 panic("SlaveCmd returned \n");
1121 }
1122 }
1123 printf("*");
1124 }
1125}
1126