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14#include <linux/sched.h>
15#include <linux/kernel.h>
16#include <linux/mm.h>
17#include <linux/stddef.h>
18#include <linux/unistd.h>
19#include <linux/ptrace.h>
20#include <linux/slab.h>
21#include <linux/user.h>
22#include <linux/screen_info.h>
23#include <linux/delay.h>
24#include <linux/mc146818rtc.h>
25#include <linux/console.h>
26#include <linux/cpu.h>
27#include <linux/errno.h>
28#include <linux/init.h>
29#include <linux/string.h>
30#include <linux/ioport.h>
31#include <linux/platform_device.h>
32#include <linux/memblock.h>
33#include <linux/pci.h>
34#include <linux/seq_file.h>
35#include <linux/root_dev.h>
36#include <linux/initrd.h>
37#include <linux/eisa.h>
38#include <linux/pfn.h>
39#ifdef CONFIG_MAGIC_SYSRQ
40#include <linux/sysrq.h>
41#include <linux/reboot.h>
42#endif
43#include <linux/notifier.h>
44#include <asm/setup.h>
45#include <asm/io.h>
46#include <linux/log2.h>
47#include <linux/export.h>
48
49extern struct atomic_notifier_head panic_notifier_list;
50static int alpha_panic_event(struct notifier_block *, unsigned long, void *);
51static struct notifier_block alpha_panic_block = {
52 alpha_panic_event,
53 NULL,
54 INT_MAX
55};
56
57#include <linux/uaccess.h>
58#include <asm/pgtable.h>
59#include <asm/hwrpb.h>
60#include <asm/dma.h>
61#include <asm/mmu_context.h>
62#include <asm/console.h>
63
64#include "proto.h"
65#include "pci_impl.h"
66
67
68struct hwrpb_struct *hwrpb;
69EXPORT_SYMBOL(hwrpb);
70unsigned long srm_hae;
71
72int alpha_l1i_cacheshape;
73int alpha_l1d_cacheshape;
74int alpha_l2_cacheshape;
75int alpha_l3_cacheshape;
76
77#ifdef CONFIG_VERBOSE_MCHECK
78
79
80unsigned long alpha_verbose_mcheck = CONFIG_VERBOSE_MCHECK_ON;
81#endif
82
83#ifdef CONFIG_NUMA
84struct cpumask node_to_cpumask_map[MAX_NUMNODES] __read_mostly;
85EXPORT_SYMBOL(node_to_cpumask_map);
86#endif
87
88
89int boot_cpuid;
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109int srmcons_output = 0;
110
111
112unsigned long mem_size_limit = 0;
113
114
115unsigned long alpha_agpgart_size = DEFAULT_AGP_APER_SIZE;
116
117#ifdef CONFIG_ALPHA_GENERIC
118struct alpha_machine_vector alpha_mv;
119EXPORT_SYMBOL(alpha_mv);
120#endif
121
122#ifndef alpha_using_srm
123int alpha_using_srm;
124EXPORT_SYMBOL(alpha_using_srm);
125#endif
126
127#ifndef alpha_using_qemu
128int alpha_using_qemu;
129#endif
130
131static struct alpha_machine_vector *get_sysvec(unsigned long, unsigned long,
132 unsigned long);
133static struct alpha_machine_vector *get_sysvec_byname(const char *);
134static void get_sysnames(unsigned long, unsigned long, unsigned long,
135 char **, char **);
136static void determine_cpu_caches (unsigned int);
137
138static char __initdata command_line[COMMAND_LINE_SIZE];
139
140
141
142
143
144
145
146struct screen_info screen_info = {
147 .orig_x = 0,
148 .orig_y = 25,
149 .orig_video_cols = 80,
150 .orig_video_lines = 25,
151 .orig_video_isVGA = 1,
152 .orig_video_points = 16
153};
154
155EXPORT_SYMBOL(screen_info);
156
157
158
159
160
161
162unsigned long __direct_map_base;
163unsigned long __direct_map_size;
164EXPORT_SYMBOL(__direct_map_base);
165EXPORT_SYMBOL(__direct_map_size);
166
167
168
169
170
171
172
173
174
175#define WEAK(X) \
176 extern struct alpha_machine_vector X; \
177 asm(".weak "#X)
178
179WEAK(alcor_mv);
180WEAK(alphabook1_mv);
181WEAK(avanti_mv);
182WEAK(cabriolet_mv);
183WEAK(clipper_mv);
184WEAK(dp264_mv);
185WEAK(eb164_mv);
186WEAK(eb64p_mv);
187WEAK(eb66_mv);
188WEAK(eb66p_mv);
189WEAK(eiger_mv);
190WEAK(jensen_mv);
191WEAK(lx164_mv);
192WEAK(lynx_mv);
193WEAK(marvel_ev7_mv);
194WEAK(miata_mv);
195WEAK(mikasa_mv);
196WEAK(mikasa_primo_mv);
197WEAK(monet_mv);
198WEAK(nautilus_mv);
199WEAK(noname_mv);
200WEAK(noritake_mv);
201WEAK(noritake_primo_mv);
202WEAK(p2k_mv);
203WEAK(pc164_mv);
204WEAK(privateer_mv);
205WEAK(rawhide_mv);
206WEAK(ruffian_mv);
207WEAK(rx164_mv);
208WEAK(sable_mv);
209WEAK(sable_gamma_mv);
210WEAK(shark_mv);
211WEAK(sx164_mv);
212WEAK(takara_mv);
213WEAK(titan_mv);
214WEAK(webbrick_mv);
215WEAK(wildfire_mv);
216WEAK(xl_mv);
217WEAK(xlt_mv);
218
219#undef WEAK
220
221
222
223
224
225
226
227
228
229static void __init
230reserve_std_resources(void)
231{
232 static struct resource standard_io_resources[] = {
233 { .name = "rtc", .start = -1, .end = -1 },
234 { .name = "dma1", .start = 0x00, .end = 0x1f },
235 { .name = "pic1", .start = 0x20, .end = 0x3f },
236 { .name = "timer", .start = 0x40, .end = 0x5f },
237 { .name = "keyboard", .start = 0x60, .end = 0x6f },
238 { .name = "dma page reg", .start = 0x80, .end = 0x8f },
239 { .name = "pic2", .start = 0xa0, .end = 0xbf },
240 { .name = "dma2", .start = 0xc0, .end = 0xdf },
241 };
242
243 struct resource *io = &ioport_resource;
244 size_t i;
245
246 if (hose_head) {
247 struct pci_controller *hose;
248 for (hose = hose_head; hose; hose = hose->next)
249 if (hose->index == 0) {
250 io = hose->io_space;
251 break;
252 }
253 }
254
255
256 standard_io_resources[0].start = RTC_PORT(0);
257 standard_io_resources[0].end = RTC_PORT(0) + 0x10;
258
259 for (i = 0; i < ARRAY_SIZE(standard_io_resources); ++i)
260 request_resource(io, standard_io_resources+i);
261}
262
263#define PFN_MAX PFN_DOWN(0x80000000)
264#define for_each_mem_cluster(memdesc, _cluster, i) \
265 for ((_cluster) = (memdesc)->cluster, (i) = 0; \
266 (i) < (memdesc)->numclusters; (i)++, (_cluster)++)
267
268static unsigned long __init
269get_mem_size_limit(char *s)
270{
271 unsigned long end = 0;
272 char *from = s;
273
274 end = simple_strtoul(from, &from, 0);
275 if ( *from == 'K' || *from == 'k' ) {
276 end = end << 10;
277 from++;
278 } else if ( *from == 'M' || *from == 'm' ) {
279 end = end << 20;
280 from++;
281 } else if ( *from == 'G' || *from == 'g' ) {
282 end = end << 30;
283 from++;
284 }
285 return end >> PAGE_SHIFT;
286}
287
288#ifdef CONFIG_BLK_DEV_INITRD
289void * __init
290move_initrd(unsigned long mem_limit)
291{
292 void *start;
293 unsigned long size;
294
295 size = initrd_end - initrd_start;
296 start = memblock_alloc_from(PAGE_ALIGN(size), PAGE_SIZE, 0);
297 if (!start || __pa(start) + size > mem_limit) {
298 initrd_start = initrd_end = 0;
299 return NULL;
300 }
301 memmove(start, (void *)initrd_start, size);
302 initrd_start = (unsigned long)start;
303 initrd_end = initrd_start + size;
304 printk("initrd moved to %p\n", start);
305 return start;
306}
307#endif
308
309#ifndef CONFIG_DISCONTIGMEM
310static void __init
311setup_memory(void *kernel_end)
312{
313 struct memclust_struct * cluster;
314 struct memdesc_struct * memdesc;
315 unsigned long start_kernel_pfn, end_kernel_pfn;
316 unsigned long bootmap_size, bootmap_pages, bootmap_start;
317 unsigned long start, end;
318 unsigned long i;
319
320
321 memdesc = (struct memdesc_struct *)
322 (hwrpb->mddt_offset + (unsigned long) hwrpb);
323
324 for_each_mem_cluster(memdesc, cluster, i) {
325 printk("memcluster %lu, usage %01lx, start %8lu, end %8lu\n",
326 i, cluster->usage, cluster->start_pfn,
327 cluster->start_pfn + cluster->numpages);
328
329
330
331
332 if (cluster->usage & 3)
333 continue;
334
335 end = cluster->start_pfn + cluster->numpages;
336 if (end > max_low_pfn)
337 max_low_pfn = end;
338 }
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355 if (!mem_size_limit)
356 mem_size_limit = (32ul * 1024 * 1024 * 1024) >> PAGE_SHIFT;
357
358 if (mem_size_limit && max_low_pfn >= mem_size_limit)
359 {
360 printk("setup: forcing memory size to %ldK (from %ldK).\n",
361 mem_size_limit << (PAGE_SHIFT - 10),
362 max_low_pfn << (PAGE_SHIFT - 10));
363 max_low_pfn = mem_size_limit;
364 }
365
366
367 start_kernel_pfn = PFN_DOWN(KERNEL_START_PHYS);
368 end_kernel_pfn = PFN_UP(virt_to_phys(kernel_end));
369 bootmap_start = -1;
370
371 try_again:
372 if (max_low_pfn <= end_kernel_pfn)
373 panic("not enough memory to boot");
374
375
376
377 bootmap_pages = bootmem_bootmap_pages(max_low_pfn);
378
379
380 for_each_mem_cluster(memdesc, cluster, i) {
381 if (cluster->usage & 3)
382 continue;
383
384 start = cluster->start_pfn;
385 end = start + cluster->numpages;
386 if (start >= max_low_pfn)
387 continue;
388 if (end > max_low_pfn)
389 end = max_low_pfn;
390 if (start < start_kernel_pfn) {
391 if (end > end_kernel_pfn
392 && end - end_kernel_pfn >= bootmap_pages) {
393 bootmap_start = end_kernel_pfn;
394 break;
395 } else if (end > start_kernel_pfn)
396 end = start_kernel_pfn;
397 } else if (start < end_kernel_pfn)
398 start = end_kernel_pfn;
399 if (end - start >= bootmap_pages) {
400 bootmap_start = start;
401 break;
402 }
403 }
404
405 if (bootmap_start == ~0UL) {
406 max_low_pfn >>= 1;
407 goto try_again;
408 }
409
410
411 bootmap_size = init_bootmem(bootmap_start, max_low_pfn);
412
413
414 for_each_mem_cluster(memdesc, cluster, i) {
415 if (cluster->usage & 3)
416 continue;
417
418 start = cluster->start_pfn;
419 end = cluster->start_pfn + cluster->numpages;
420 if (start >= max_low_pfn)
421 continue;
422 if (end > max_low_pfn)
423 end = max_low_pfn;
424 if (start < start_kernel_pfn) {
425 if (end > end_kernel_pfn) {
426 free_bootmem(PFN_PHYS(start),
427 (PFN_PHYS(start_kernel_pfn)
428 - PFN_PHYS(start)));
429 printk("freeing pages %ld:%ld\n",
430 start, start_kernel_pfn);
431 start = end_kernel_pfn;
432 } else if (end > start_kernel_pfn)
433 end = start_kernel_pfn;
434 } else if (start < end_kernel_pfn)
435 start = end_kernel_pfn;
436 if (start >= end)
437 continue;
438
439 free_bootmem(PFN_PHYS(start), PFN_PHYS(end) - PFN_PHYS(start));
440 printk("freeing pages %ld:%ld\n", start, end);
441 }
442
443
444 reserve_bootmem(PFN_PHYS(bootmap_start), bootmap_size,
445 BOOTMEM_DEFAULT);
446 printk("reserving pages %ld:%ld\n", bootmap_start, bootmap_start+PFN_UP(bootmap_size));
447
448#ifdef CONFIG_BLK_DEV_INITRD
449 initrd_start = INITRD_START;
450 if (initrd_start) {
451 initrd_end = initrd_start+INITRD_SIZE;
452 printk("Initial ramdisk at: 0x%p (%lu bytes)\n",
453 (void *) initrd_start, INITRD_SIZE);
454
455 if ((void *)initrd_end > phys_to_virt(PFN_PHYS(max_low_pfn))) {
456 if (!move_initrd(PFN_PHYS(max_low_pfn)))
457 printk("initrd extends beyond end of memory "
458 "(0x%08lx > 0x%p)\ndisabling initrd\n",
459 initrd_end,
460 phys_to_virt(PFN_PHYS(max_low_pfn)));
461 } else {
462 reserve_bootmem(virt_to_phys((void *)initrd_start),
463 INITRD_SIZE, BOOTMEM_DEFAULT);
464 }
465 }
466#endif
467}
468#else
469extern void setup_memory(void *);
470#endif
471
472int __init
473page_is_ram(unsigned long pfn)
474{
475 struct memclust_struct * cluster;
476 struct memdesc_struct * memdesc;
477 unsigned long i;
478
479 memdesc = (struct memdesc_struct *)
480 (hwrpb->mddt_offset + (unsigned long) hwrpb);
481 for_each_mem_cluster(memdesc, cluster, i)
482 {
483 if (pfn >= cluster->start_pfn &&
484 pfn < cluster->start_pfn + cluster->numpages) {
485 return (cluster->usage & 3) ? 0 : 1;
486 }
487 }
488
489 return 0;
490}
491
492static int __init
493register_cpus(void)
494{
495 int i;
496
497 for_each_possible_cpu(i) {
498 struct cpu *p = kzalloc(sizeof(*p), GFP_KERNEL);
499 if (!p)
500 return -ENOMEM;
501 register_cpu(p, i);
502 }
503 return 0;
504}
505
506arch_initcall(register_cpus);
507
508#ifdef CONFIG_MAGIC_SYSRQ
509static struct sysrq_key_op srm_sysrq_reboot_op = {
510 .handler = machine_halt,
511 .help_msg = "reboot(b)",
512 .action_msg = "Resetting",
513 .enable_mask = SYSRQ_ENABLE_BOOT,
514};
515#endif
516
517void __init
518setup_arch(char **cmdline_p)
519{
520 extern char _end[];
521
522 struct alpha_machine_vector *vec = NULL;
523 struct percpu_struct *cpu;
524 char *type_name, *var_name, *p;
525 void *kernel_end = _end;
526 char *args = command_line;
527
528 hwrpb = (struct hwrpb_struct*) __va(INIT_HWRPB->phys_addr);
529 boot_cpuid = hard_smp_processor_id();
530
531
532
533
534
535
536
537
538
539
540
541 if ((long)hwrpb->sys_type < 0) {
542 hwrpb->sys_type = -((long)hwrpb->sys_type);
543 hwrpb_update_checksum(hwrpb);
544 }
545
546
547 atomic_notifier_chain_register(&panic_notifier_list,
548 &alpha_panic_block);
549
550#ifndef alpha_using_srm
551
552
553 alpha_using_srm = strncmp((const char *)hwrpb->ssn, "MILO", 4) != 0;
554#endif
555#ifndef alpha_using_qemu
556
557 alpha_using_qemu = strstr((const char *)hwrpb->ssn, "QEMU") != 0;
558#endif
559
560
561
562
563
564 kernel_end = callback_init(kernel_end);
565
566
567
568
569
570
571
572 if (strcmp(COMMAND_LINE, "INSTALL") == 0) {
573 strlcpy(command_line, "root=/dev/fd0 load_ramdisk=1", sizeof command_line);
574 } else {
575 strlcpy(command_line, COMMAND_LINE, sizeof command_line);
576 }
577 strcpy(boot_command_line, command_line);
578 *cmdline_p = command_line;
579
580
581
582
583 while ((p = strsep(&args, " \t")) != NULL) {
584 if (!*p) continue;
585 if (strncmp(p, "alpha_mv=", 9) == 0) {
586 vec = get_sysvec_byname(p+9);
587 continue;
588 }
589 if (strncmp(p, "cycle=", 6) == 0) {
590 est_cycle_freq = simple_strtol(p+6, NULL, 0);
591 continue;
592 }
593 if (strncmp(p, "mem=", 4) == 0) {
594 mem_size_limit = get_mem_size_limit(p+4);
595 continue;
596 }
597 if (strncmp(p, "srmcons", 7) == 0) {
598 srmcons_output |= 1;
599 continue;
600 }
601 if (strncmp(p, "console=srm", 11) == 0) {
602 srmcons_output |= 2;
603 continue;
604 }
605 if (strncmp(p, "gartsize=", 9) == 0) {
606 alpha_agpgart_size =
607 get_mem_size_limit(p+9) << PAGE_SHIFT;
608 continue;
609 }
610#ifdef CONFIG_VERBOSE_MCHECK
611 if (strncmp(p, "verbose_mcheck=", 15) == 0) {
612 alpha_verbose_mcheck = simple_strtol(p+15, NULL, 0);
613 continue;
614 }
615#endif
616 }
617
618
619 strcpy(command_line, boot_command_line);
620
621
622 if (alpha_using_srm && srmcons_output) {
623 register_srm_console();
624
625
626
627
628
629 if (srmcons_output & 2)
630 srmcons_output = 0;
631 }
632
633#ifdef CONFIG_MAGIC_SYSRQ
634
635
636 if (alpha_using_srm) {
637 unregister_sysrq_key('b', __sysrq_reboot_op);
638 register_sysrq_key('b', &srm_sysrq_reboot_op);
639 }
640#endif
641
642
643
644
645 cpu = (struct percpu_struct*)((char*)hwrpb + hwrpb->processor_offset);
646
647 get_sysnames(hwrpb->sys_type, hwrpb->sys_variation,
648 cpu->type, &type_name, &var_name);
649 if (*var_name == '0')
650 var_name = "";
651
652 if (!vec) {
653 vec = get_sysvec(hwrpb->sys_type, hwrpb->sys_variation,
654 cpu->type);
655 }
656
657 if (!vec) {
658 panic("Unsupported system type: %s%s%s (%ld %ld)\n",
659 type_name, (*var_name ? " variation " : ""), var_name,
660 hwrpb->sys_type, hwrpb->sys_variation);
661 }
662 if (vec != &alpha_mv) {
663 alpha_mv = *vec;
664 }
665
666 printk("Booting "
667#ifdef CONFIG_ALPHA_GENERIC
668 "GENERIC "
669#endif
670 "on %s%s%s using machine vector %s from %s\n",
671 type_name, (*var_name ? " variation " : ""),
672 var_name, alpha_mv.vector_name,
673 (alpha_using_srm ? "SRM" : "MILO"));
674
675 printk("Major Options: "
676#ifdef CONFIG_SMP
677 "SMP "
678#endif
679#ifdef CONFIG_ALPHA_EV56
680 "EV56 "
681#endif
682#ifdef CONFIG_ALPHA_EV67
683 "EV67 "
684#endif
685#ifdef CONFIG_ALPHA_LEGACY_START_ADDRESS
686 "LEGACY_START "
687#endif
688#ifdef CONFIG_VERBOSE_MCHECK
689 "VERBOSE_MCHECK "
690#endif
691
692#ifdef CONFIG_DISCONTIGMEM
693 "DISCONTIGMEM "
694#ifdef CONFIG_NUMA
695 "NUMA "
696#endif
697#endif
698
699#ifdef CONFIG_DEBUG_SPINLOCK
700 "DEBUG_SPINLOCK "
701#endif
702#ifdef CONFIG_MAGIC_SYSRQ
703 "MAGIC_SYSRQ "
704#endif
705 "\n");
706
707 printk("Command line: %s\n", command_line);
708
709
710
711
712
713 srm_hae = *alpha_mv.hae_register;
714 __set_hae(alpha_mv.hae_cache);
715
716
717 wrmces(0x7);
718
719
720 setup_memory(kernel_end);
721
722
723 determine_cpu_caches(cpu->type);
724
725
726
727 if (alpha_mv.init_arch)
728 alpha_mv.init_arch();
729
730
731 reserve_std_resources();
732
733
734
735
736
737
738#ifdef CONFIG_VT
739#if defined(CONFIG_VGA_CONSOLE)
740 conswitchp = &vga_con;
741#elif defined(CONFIG_DUMMY_CONSOLE)
742 conswitchp = &dummy_con;
743#endif
744#endif
745
746
747 ROOT_DEV = Root_SDA2;
748
749#ifdef CONFIG_EISA
750
751 EISA_bus = 1;
752#endif
753
754
755
756
757
758
759
760 if (hwrpb->max_asn != MAX_ASN) {
761 printk("Max ASN from HWRPB is bad (0x%lx)\n", hwrpb->max_asn);
762 }
763
764
765
766
767
768#ifdef CONFIG_SMP
769 setup_smp();
770#endif
771 paging_init();
772}
773
774static char sys_unknown[] = "Unknown";
775static char systype_names[][16] = {
776 "0",
777 "ADU", "Cobra", "Ruby", "Flamingo", "Mannequin", "Jensen",
778 "Pelican", "Morgan", "Sable", "Medulla", "Noname",
779 "Turbolaser", "Avanti", "Mustang", "Alcor", "Tradewind",
780 "Mikasa", "EB64", "EB66", "EB64+", "AlphaBook1",
781 "Rawhide", "K2", "Lynx", "XL", "EB164", "Noritake",
782 "Cortex", "29", "Miata", "XXM", "Takara", "Yukon",
783 "Tsunami", "Wildfire", "CUSCO", "Eiger", "Titan", "Marvel"
784};
785
786static char unofficial_names[][8] = {"100", "Ruffian"};
787
788static char api_names[][16] = {"200", "Nautilus"};
789
790static char eb164_names[][8] = {"EB164", "PC164", "LX164", "SX164", "RX164"};
791static int eb164_indices[] = {0,0,0,1,1,1,1,1,2,2,2,2,3,3,3,3,4};
792
793static char alcor_names[][16] = {"Alcor", "Maverick", "Bret"};
794static int alcor_indices[] = {0,0,0,1,1,1,0,0,0,0,0,0,2,2,2,2,2,2};
795
796static char eb64p_names[][16] = {"EB64+", "Cabriolet", "AlphaPCI64"};
797static int eb64p_indices[] = {0,0,1,2};
798
799static char eb66_names[][8] = {"EB66", "EB66+"};
800static int eb66_indices[] = {0,0,1};
801
802static char marvel_names[][16] = {
803 "Marvel/EV7"
804};
805static int marvel_indices[] = { 0 };
806
807static char rawhide_names[][16] = {
808 "Dodge", "Wrangler", "Durango", "Tincup", "DaVinci"
809};
810static int rawhide_indices[] = {0,0,0,1,1,2,2,3,3,4,4};
811
812static char titan_names[][16] = {
813 "DEFAULT", "Privateer", "Falcon", "Granite"
814};
815static int titan_indices[] = {0,1,2,2,3};
816
817static char tsunami_names[][16] = {
818 "0", "DP264", "Warhol", "Windjammer", "Monet", "Clipper",
819 "Goldrush", "Webbrick", "Catamaran", "Brisbane", "Melbourne",
820 "Flying Clipper", "Shark"
821};
822static int tsunami_indices[] = {0,1,2,3,4,5,6,7,8,9,10,11,12};
823
824static struct alpha_machine_vector * __init
825get_sysvec(unsigned long type, unsigned long variation, unsigned long cpu)
826{
827 static struct alpha_machine_vector *systype_vecs[] __initdata =
828 {
829 NULL,
830 NULL,
831 NULL,
832 NULL,
833 NULL,
834 NULL,
835 &jensen_mv,
836 NULL,
837 NULL,
838 NULL,
839 NULL,
840 &noname_mv,
841 NULL,
842 &avanti_mv,
843 NULL,
844 NULL,
845 NULL,
846 NULL,
847 NULL,
848 NULL,
849 NULL,
850 &alphabook1_mv,
851 &rawhide_mv,
852 NULL,
853 &lynx_mv,
854 &xl_mv,
855 NULL,
856 NULL,
857 NULL,
858 NULL,
859 &miata_mv,
860 NULL,
861 &takara_mv,
862 NULL,
863 NULL,
864 &wildfire_mv,
865 NULL,
866 &eiger_mv,
867 NULL,
868 NULL,
869 };
870
871 static struct alpha_machine_vector *unofficial_vecs[] __initdata =
872 {
873 NULL,
874 &ruffian_mv,
875 };
876
877 static struct alpha_machine_vector *api_vecs[] __initdata =
878 {
879 NULL,
880 &nautilus_mv,
881 };
882
883 static struct alpha_machine_vector *alcor_vecs[] __initdata =
884 {
885 &alcor_mv, &xlt_mv, &xlt_mv
886 };
887
888 static struct alpha_machine_vector *eb164_vecs[] __initdata =
889 {
890 &eb164_mv, &pc164_mv, &lx164_mv, &sx164_mv, &rx164_mv
891 };
892
893 static struct alpha_machine_vector *eb64p_vecs[] __initdata =
894 {
895 &eb64p_mv,
896 &cabriolet_mv,
897 &cabriolet_mv
898 };
899
900 static struct alpha_machine_vector *eb66_vecs[] __initdata =
901 {
902 &eb66_mv,
903 &eb66p_mv
904 };
905
906 static struct alpha_machine_vector *marvel_vecs[] __initdata =
907 {
908 &marvel_ev7_mv,
909 };
910
911 static struct alpha_machine_vector *titan_vecs[] __initdata =
912 {
913 &titan_mv,
914 &privateer_mv,
915 &titan_mv,
916 &privateer_mv,
917 };
918
919 static struct alpha_machine_vector *tsunami_vecs[] __initdata =
920 {
921 NULL,
922 &dp264_mv,
923 &dp264_mv,
924 &dp264_mv,
925 &monet_mv,
926 &clipper_mv,
927 &dp264_mv,
928 &webbrick_mv,
929 &dp264_mv,
930 NULL,
931 NULL,
932 NULL,
933 &shark_mv,
934 };
935
936
937
938 struct alpha_machine_vector *vec;
939
940
941 vec = NULL;
942 if (type < ARRAY_SIZE(systype_vecs)) {
943 vec = systype_vecs[type];
944 } else if ((type > ST_API_BIAS) &&
945 (type - ST_API_BIAS) < ARRAY_SIZE(api_vecs)) {
946 vec = api_vecs[type - ST_API_BIAS];
947 } else if ((type > ST_UNOFFICIAL_BIAS) &&
948 (type - ST_UNOFFICIAL_BIAS) < ARRAY_SIZE(unofficial_vecs)) {
949 vec = unofficial_vecs[type - ST_UNOFFICIAL_BIAS];
950 }
951
952
953
954 if (!vec) {
955
956 unsigned long member = (variation >> 10) & 0x3f;
957
958 cpu &= 0xffffffff;
959
960 switch (type) {
961 case ST_DEC_ALCOR:
962 if (member < ARRAY_SIZE(alcor_indices))
963 vec = alcor_vecs[alcor_indices[member]];
964 break;
965 case ST_DEC_EB164:
966 if (member < ARRAY_SIZE(eb164_indices))
967 vec = eb164_vecs[eb164_indices[member]];
968
969
970 if (vec == &eb164_mv && cpu == EV56_CPU)
971 vec = &pc164_mv;
972 break;
973 case ST_DEC_EB64P:
974 if (member < ARRAY_SIZE(eb64p_indices))
975 vec = eb64p_vecs[eb64p_indices[member]];
976 break;
977 case ST_DEC_EB66:
978 if (member < ARRAY_SIZE(eb66_indices))
979 vec = eb66_vecs[eb66_indices[member]];
980 break;
981 case ST_DEC_MARVEL:
982 if (member < ARRAY_SIZE(marvel_indices))
983 vec = marvel_vecs[marvel_indices[member]];
984 break;
985 case ST_DEC_TITAN:
986 vec = titan_vecs[0];
987 if (member < ARRAY_SIZE(titan_indices))
988 vec = titan_vecs[titan_indices[member]];
989 break;
990 case ST_DEC_TSUNAMI:
991 if (member < ARRAY_SIZE(tsunami_indices))
992 vec = tsunami_vecs[tsunami_indices[member]];
993 break;
994 case ST_DEC_1000:
995 if (cpu == EV5_CPU || cpu == EV56_CPU)
996 vec = &mikasa_primo_mv;
997 else
998 vec = &mikasa_mv;
999 break;
1000 case ST_DEC_NORITAKE:
1001 if (cpu == EV5_CPU || cpu == EV56_CPU)
1002 vec = &noritake_primo_mv;
1003 else
1004 vec = &noritake_mv;
1005 break;
1006 case ST_DEC_2100_A500:
1007 if (cpu == EV5_CPU || cpu == EV56_CPU)
1008 vec = &sable_gamma_mv;
1009 else
1010 vec = &sable_mv;
1011 break;
1012 }
1013 }
1014 return vec;
1015}
1016
1017static struct alpha_machine_vector * __init
1018get_sysvec_byname(const char *name)
1019{
1020 static struct alpha_machine_vector *all_vecs[] __initdata =
1021 {
1022 &alcor_mv,
1023 &alphabook1_mv,
1024 &avanti_mv,
1025 &cabriolet_mv,
1026 &clipper_mv,
1027 &dp264_mv,
1028 &eb164_mv,
1029 &eb64p_mv,
1030 &eb66_mv,
1031 &eb66p_mv,
1032 &eiger_mv,
1033 &jensen_mv,
1034 &lx164_mv,
1035 &lynx_mv,
1036 &miata_mv,
1037 &mikasa_mv,
1038 &mikasa_primo_mv,
1039 &monet_mv,
1040 &nautilus_mv,
1041 &noname_mv,
1042 &noritake_mv,
1043 &noritake_primo_mv,
1044 &p2k_mv,
1045 &pc164_mv,
1046 &privateer_mv,
1047 &rawhide_mv,
1048 &ruffian_mv,
1049 &rx164_mv,
1050 &sable_mv,
1051 &sable_gamma_mv,
1052 &shark_mv,
1053 &sx164_mv,
1054 &takara_mv,
1055 &webbrick_mv,
1056 &wildfire_mv,
1057 &xl_mv,
1058 &xlt_mv
1059 };
1060
1061 size_t i;
1062
1063 for (i = 0; i < ARRAY_SIZE(all_vecs); ++i) {
1064 struct alpha_machine_vector *mv = all_vecs[i];
1065 if (strcasecmp(mv->vector_name, name) == 0)
1066 return mv;
1067 }
1068 return NULL;
1069}
1070
1071static void
1072get_sysnames(unsigned long type, unsigned long variation, unsigned long cpu,
1073 char **type_name, char **variation_name)
1074{
1075 unsigned long member;
1076
1077
1078
1079 if (type < ARRAY_SIZE(systype_names)) {
1080 *type_name = systype_names[type];
1081 } else if ((type > ST_API_BIAS) &&
1082 (type - ST_API_BIAS) < ARRAY_SIZE(api_names)) {
1083 *type_name = api_names[type - ST_API_BIAS];
1084 } else if ((type > ST_UNOFFICIAL_BIAS) &&
1085 (type - ST_UNOFFICIAL_BIAS) < ARRAY_SIZE(unofficial_names)) {
1086 *type_name = unofficial_names[type - ST_UNOFFICIAL_BIAS];
1087 } else {
1088 *type_name = sys_unknown;
1089 *variation_name = sys_unknown;
1090 return;
1091 }
1092
1093
1094 *variation_name = systype_names[0];
1095 if (variation == 0) {
1096 return;
1097 }
1098
1099 member = (variation >> 10) & 0x3f;
1100
1101 cpu &= 0xffffffff;
1102
1103 switch (type) {
1104 default:
1105 break;
1106 case ST_DEC_EB164:
1107 if (member >= ARRAY_SIZE(eb164_indices))
1108 break;
1109 *variation_name = eb164_names[eb164_indices[member]];
1110
1111
1112 if (eb164_indices[member] == 0 && cpu == EV56_CPU)
1113 *variation_name = eb164_names[1];
1114 break;
1115 case ST_DEC_ALCOR:
1116 if (member < ARRAY_SIZE(alcor_indices))
1117 *variation_name = alcor_names[alcor_indices[member]];
1118 break;
1119 case ST_DEC_EB64P:
1120 if (member < ARRAY_SIZE(eb64p_indices))
1121 *variation_name = eb64p_names[eb64p_indices[member]];
1122 break;
1123 case ST_DEC_EB66:
1124 if (member < ARRAY_SIZE(eb66_indices))
1125 *variation_name = eb66_names[eb66_indices[member]];
1126 break;
1127 case ST_DEC_MARVEL:
1128 if (member < ARRAY_SIZE(marvel_indices))
1129 *variation_name = marvel_names[marvel_indices[member]];
1130 break;
1131 case ST_DEC_RAWHIDE:
1132 if (member < ARRAY_SIZE(rawhide_indices))
1133 *variation_name = rawhide_names[rawhide_indices[member]];
1134 break;
1135 case ST_DEC_TITAN:
1136 *variation_name = titan_names[0];
1137 if (member < ARRAY_SIZE(titan_indices))
1138 *variation_name = titan_names[titan_indices[member]];
1139 break;
1140 case ST_DEC_TSUNAMI:
1141 if (member < ARRAY_SIZE(tsunami_indices))
1142 *variation_name = tsunami_names[tsunami_indices[member]];
1143 break;
1144 }
1145}
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161static char *
1162platform_string(void)
1163{
1164 struct dsr_struct *dsr;
1165 static char unk_system_string[] = "N/A";
1166
1167
1168
1169
1170
1171 if (hwrpb->revision < 5)
1172 return (unk_system_string);
1173 else {
1174
1175
1176
1177
1178 dsr = ((struct dsr_struct *)
1179 ((char *)hwrpb + hwrpb->dsr_offset));
1180 return ((char *)dsr + (dsr->sysname_off +
1181 sizeof(long)));
1182 }
1183}
1184
1185static int
1186get_nr_processors(struct percpu_struct *cpubase, unsigned long num)
1187{
1188 struct percpu_struct *cpu;
1189 unsigned long i;
1190 int count = 0;
1191
1192 for (i = 0; i < num; i++) {
1193 cpu = (struct percpu_struct *)
1194 ((char *)cpubase + i*hwrpb->processor_size);
1195 if ((cpu->flags & 0x1cc) == 0x1cc)
1196 count++;
1197 }
1198 return count;
1199}
1200
1201static void
1202show_cache_size (struct seq_file *f, const char *which, int shape)
1203{
1204 if (shape == -1)
1205 seq_printf (f, "%s\t\t: n/a\n", which);
1206 else if (shape == 0)
1207 seq_printf (f, "%s\t\t: unknown\n", which);
1208 else
1209 seq_printf (f, "%s\t\t: %dK, %d-way, %db line\n",
1210 which, shape >> 10, shape & 15,
1211 1 << ((shape >> 4) & 15));
1212}
1213
1214static int
1215show_cpuinfo(struct seq_file *f, void *slot)
1216{
1217 extern struct unaligned_stat {
1218 unsigned long count, va, pc;
1219 } unaligned[2];
1220
1221 static char cpu_names[][8] = {
1222 "EV3", "EV4", "Simulate", "LCA4", "EV5", "EV45", "EV56",
1223 "EV6", "PCA56", "PCA57", "EV67", "EV68CB", "EV68AL",
1224 "EV68CX", "EV7", "EV79", "EV69"
1225 };
1226
1227 struct percpu_struct *cpu = slot;
1228 unsigned int cpu_index;
1229 char *cpu_name;
1230 char *systype_name;
1231 char *sysvariation_name;
1232 int nr_processors;
1233 unsigned long timer_freq;
1234
1235 cpu_index = (unsigned) (cpu->type - 1);
1236 cpu_name = "Unknown";
1237 if (cpu_index < ARRAY_SIZE(cpu_names))
1238 cpu_name = cpu_names[cpu_index];
1239
1240 get_sysnames(hwrpb->sys_type, hwrpb->sys_variation,
1241 cpu->type, &systype_name, &sysvariation_name);
1242
1243 nr_processors = get_nr_processors(cpu, hwrpb->nr_processors);
1244
1245#if CONFIG_HZ == 1024 || CONFIG_HZ == 1200
1246 timer_freq = (100UL * hwrpb->intr_freq) / 4096;
1247#else
1248 timer_freq = 100UL * CONFIG_HZ;
1249#endif
1250
1251 seq_printf(f, "cpu\t\t\t: Alpha\n"
1252 "cpu model\t\t: %s\n"
1253 "cpu variation\t\t: %ld\n"
1254 "cpu revision\t\t: %ld\n"
1255 "cpu serial number\t: %s\n"
1256 "system type\t\t: %s\n"
1257 "system variation\t: %s\n"
1258 "system revision\t\t: %ld\n"
1259 "system serial number\t: %s\n"
1260 "cycle frequency [Hz]\t: %lu %s\n"
1261 "timer frequency [Hz]\t: %lu.%02lu\n"
1262 "page size [bytes]\t: %ld\n"
1263 "phys. address bits\t: %ld\n"
1264 "max. addr. space #\t: %ld\n"
1265 "BogoMIPS\t\t: %lu.%02lu\n"
1266 "kernel unaligned acc\t: %ld (pc=%lx,va=%lx)\n"
1267 "user unaligned acc\t: %ld (pc=%lx,va=%lx)\n"
1268 "platform string\t\t: %s\n"
1269 "cpus detected\t\t: %d\n",
1270 cpu_name, cpu->variation, cpu->revision,
1271 (char*)cpu->serial_no,
1272 systype_name, sysvariation_name, hwrpb->sys_revision,
1273 (char*)hwrpb->ssn,
1274 est_cycle_freq ? : hwrpb->cycle_freq,
1275 est_cycle_freq ? "est." : "",
1276 timer_freq / 100, timer_freq % 100,
1277 hwrpb->pagesize,
1278 hwrpb->pa_bits,
1279 hwrpb->max_asn,
1280 loops_per_jiffy / (500000/HZ),
1281 (loops_per_jiffy / (5000/HZ)) % 100,
1282 unaligned[0].count, unaligned[0].pc, unaligned[0].va,
1283 unaligned[1].count, unaligned[1].pc, unaligned[1].va,
1284 platform_string(), nr_processors);
1285
1286#ifdef CONFIG_SMP
1287 seq_printf(f, "cpus active\t\t: %u\n"
1288 "cpu active mask\t\t: %016lx\n",
1289 num_online_cpus(), cpumask_bits(cpu_possible_mask)[0]);
1290#endif
1291
1292 show_cache_size (f, "L1 Icache", alpha_l1i_cacheshape);
1293 show_cache_size (f, "L1 Dcache", alpha_l1d_cacheshape);
1294 show_cache_size (f, "L2 cache", alpha_l2_cacheshape);
1295 show_cache_size (f, "L3 cache", alpha_l3_cacheshape);
1296
1297 return 0;
1298}
1299
1300static int __init
1301read_mem_block(int *addr, int stride, int size)
1302{
1303 long nloads = size / stride, cnt, tmp;
1304
1305 __asm__ __volatile__(
1306 " rpcc %0\n"
1307 "1: ldl %3,0(%2)\n"
1308 " subq %1,1,%1\n"
1309
1310
1311
1312 " xor %3,%2,%2\n"
1313 " xor %3,%2,%2\n"
1314 " addq %2,%4,%2\n"
1315 " bne %1,1b\n"
1316 " rpcc %3\n"
1317 " subl %3,%0,%0\n"
1318 : "=&r" (cnt), "=&r" (nloads), "=&r" (addr), "=&r" (tmp)
1319 : "r" (stride), "1" (nloads), "2" (addr));
1320
1321 return cnt / (size / stride);
1322}
1323
1324#define CSHAPE(totalsize, linesize, assoc) \
1325 ((totalsize & ~0xff) | (linesize << 4) | assoc)
1326
1327
1328
1329#define MAX_BCACHE_SIZE 16*1024*1024
1330
1331
1332static int __init
1333external_cache_probe(int minsize, int width)
1334{
1335 int cycles, prev_cycles = 1000000;
1336 int stride = 1 << width;
1337 long size = minsize, maxsize = MAX_BCACHE_SIZE * 2;
1338
1339 if (maxsize > (max_low_pfn + 1) << PAGE_SHIFT)
1340 maxsize = 1 << (ilog2(max_low_pfn + 1) + PAGE_SHIFT);
1341
1342
1343 read_mem_block(__va(0), stride, size);
1344
1345 while (size < maxsize) {
1346
1347 cycles = read_mem_block(__va(0), stride, size);
1348 if (cycles > prev_cycles * 2) {
1349
1350 printk("%ldK Bcache detected; load hit latency %d "
1351 "cycles, load miss latency %d cycles\n",
1352 size >> 11, prev_cycles, cycles);
1353 return CSHAPE(size >> 1, width, 1);
1354 }
1355
1356 read_mem_block(__va(size), stride, size);
1357 prev_cycles = cycles;
1358 size <<= 1;
1359 }
1360 return -1;
1361}
1362
1363static void __init
1364determine_cpu_caches (unsigned int cpu_type)
1365{
1366 int L1I, L1D, L2, L3;
1367
1368 switch (cpu_type) {
1369 case EV4_CPU:
1370 case EV45_CPU:
1371 {
1372 if (cpu_type == EV4_CPU)
1373 L1I = CSHAPE(8*1024, 5, 1);
1374 else
1375 L1I = CSHAPE(16*1024, 5, 1);
1376 L1D = L1I;
1377 L3 = -1;
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389 L2 = external_cache_probe(128*1024, 5);
1390 break;
1391 }
1392
1393 case LCA4_CPU:
1394 {
1395 unsigned long car, size;
1396
1397 L1I = L1D = CSHAPE(8*1024, 5, 1);
1398 L3 = -1;
1399
1400 car = *(vuip) phys_to_virt (0x120000078UL);
1401 size = 64*1024 * (1 << ((car >> 5) & 7));
1402
1403 L2 = (car & 1 ? CSHAPE (size, 3, 1) : -1);
1404 break;
1405 }
1406
1407 case EV5_CPU:
1408 case EV56_CPU:
1409 {
1410 unsigned long sc_ctl, width;
1411
1412 L1I = L1D = CSHAPE(8*1024, 5, 1);
1413
1414
1415 sc_ctl = *(vulp) phys_to_virt (0xfffff000a8UL);
1416 width = sc_ctl & 0x1000 ? 6 : 5;
1417 L2 = CSHAPE (96*1024, width, 3);
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429 L3 = external_cache_probe(1024*1024, width);
1430 break;
1431 }
1432
1433 case PCA56_CPU:
1434 case PCA57_CPU:
1435 {
1436 if (cpu_type == PCA56_CPU) {
1437 L1I = CSHAPE(16*1024, 6, 1);
1438 L1D = CSHAPE(8*1024, 5, 1);
1439 } else {
1440 L1I = CSHAPE(32*1024, 6, 2);
1441 L1D = CSHAPE(16*1024, 5, 1);
1442 }
1443 L3 = -1;
1444
1445#if 0
1446 unsigned long cbox_config, size;
1447
1448 cbox_config = *(vulp) phys_to_virt (0xfffff00008UL);
1449 size = 512*1024 * (1 << ((cbox_config >> 12) & 3));
1450
1451 L2 = ((cbox_config >> 31) & 1 ? CSHAPE (size, 6, 1) : -1);
1452#else
1453 L2 = external_cache_probe(512*1024, 6);
1454#endif
1455 break;
1456 }
1457
1458 case EV6_CPU:
1459 case EV67_CPU:
1460 case EV68CB_CPU:
1461 case EV68AL_CPU:
1462 case EV68CX_CPU:
1463 case EV69_CPU:
1464 L1I = L1D = CSHAPE(64*1024, 6, 2);
1465 L2 = external_cache_probe(1024*1024, 6);
1466 L3 = -1;
1467 break;
1468
1469 case EV7_CPU:
1470 case EV79_CPU:
1471 L1I = L1D = CSHAPE(64*1024, 6, 2);
1472 L2 = CSHAPE(7*1024*1024/4, 6, 7);
1473 L3 = -1;
1474 break;
1475
1476 default:
1477
1478 L1I = L1D = L2 = L3 = 0;
1479 break;
1480 }
1481
1482 alpha_l1i_cacheshape = L1I;
1483 alpha_l1d_cacheshape = L1D;
1484 alpha_l2_cacheshape = L2;
1485 alpha_l3_cacheshape = L3;
1486}
1487
1488
1489
1490
1491static void *
1492c_start(struct seq_file *f, loff_t *pos)
1493{
1494 return *pos ? NULL : (char *)hwrpb + hwrpb->processor_offset;
1495}
1496
1497static void *
1498c_next(struct seq_file *f, void *v, loff_t *pos)
1499{
1500 return NULL;
1501}
1502
1503static void
1504c_stop(struct seq_file *f, void *v)
1505{
1506}
1507
1508const struct seq_operations cpuinfo_op = {
1509 .start = c_start,
1510 .next = c_next,
1511 .stop = c_stop,
1512 .show = show_cpuinfo,
1513};
1514
1515
1516static int
1517alpha_panic_event(struct notifier_block *this, unsigned long event, void *ptr)
1518{
1519#if 1
1520
1521
1522 if (alpha_using_srm && srmcons_output)
1523 __halt();
1524#endif
1525 return NOTIFY_DONE;
1526}
1527
1528static __init int add_pcspkr(void)
1529{
1530 struct platform_device *pd;
1531 int ret;
1532
1533 pd = platform_device_alloc("pcspkr", -1);
1534 if (!pd)
1535 return -ENOMEM;
1536
1537 ret = platform_device_add(pd);
1538 if (ret)
1539 platform_device_put(pd);
1540
1541 return ret;
1542}
1543device_initcall(add_pcspkr);
1544