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