diff options
Diffstat (limited to 'arch/x86/mm/init_64.c')
-rw-r--r-- | arch/x86/mm/init_64.c | 112 |
1 files changed, 0 insertions, 112 deletions
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 306049edd553..ec37121f6709 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c | |||
@@ -517,118 +517,6 @@ static void __init init_gbpages(void) | |||
517 | direct_gbpages = 0; | 517 | direct_gbpages = 0; |
518 | } | 518 | } |
519 | 519 | ||
520 | #ifdef CONFIG_MEMTEST | ||
521 | |||
522 | static void __init memtest(unsigned long start_phys, unsigned long size, | ||
523 | unsigned pattern) | ||
524 | { | ||
525 | unsigned long i; | ||
526 | unsigned long *start; | ||
527 | unsigned long start_bad; | ||
528 | unsigned long last_bad; | ||
529 | unsigned long val; | ||
530 | unsigned long start_phys_aligned; | ||
531 | unsigned long count; | ||
532 | unsigned long incr; | ||
533 | |||
534 | switch (pattern) { | ||
535 | case 0: | ||
536 | val = 0UL; | ||
537 | break; | ||
538 | case 1: | ||
539 | val = -1UL; | ||
540 | break; | ||
541 | case 2: | ||
542 | val = 0x5555555555555555UL; | ||
543 | break; | ||
544 | case 3: | ||
545 | val = 0xaaaaaaaaaaaaaaaaUL; | ||
546 | break; | ||
547 | default: | ||
548 | return; | ||
549 | } | ||
550 | |||
551 | incr = sizeof(unsigned long); | ||
552 | start_phys_aligned = ALIGN(start_phys, incr); | ||
553 | count = (size - (start_phys_aligned - start_phys))/incr; | ||
554 | start = __va(start_phys_aligned); | ||
555 | start_bad = 0; | ||
556 | last_bad = 0; | ||
557 | |||
558 | for (i = 0; i < count; i++) | ||
559 | start[i] = val; | ||
560 | for (i = 0; i < count; i++, start++, start_phys_aligned += incr) { | ||
561 | if (*start != val) { | ||
562 | if (start_phys_aligned == last_bad + incr) { | ||
563 | last_bad += incr; | ||
564 | } else { | ||
565 | if (start_bad) { | ||
566 | printk(KERN_CONT "\n %016lx bad mem addr %016lx - %016lx reserved", | ||
567 | val, start_bad, last_bad + incr); | ||
568 | reserve_early(start_bad, last_bad - start_bad, "BAD RAM"); | ||
569 | } | ||
570 | start_bad = last_bad = start_phys_aligned; | ||
571 | } | ||
572 | } | ||
573 | } | ||
574 | if (start_bad) { | ||
575 | printk(KERN_CONT "\n %016lx bad mem addr %016lx - %016lx reserved", | ||
576 | val, start_bad, last_bad + incr); | ||
577 | reserve_early(start_bad, last_bad - start_bad, "BAD RAM"); | ||
578 | } | ||
579 | |||
580 | } | ||
581 | |||
582 | /* default is disabled */ | ||
583 | static int memtest_pattern __initdata; | ||
584 | |||
585 | static int __init parse_memtest(char *arg) | ||
586 | { | ||
587 | if (arg) | ||
588 | memtest_pattern = simple_strtoul(arg, NULL, 0); | ||
589 | return 0; | ||
590 | } | ||
591 | |||
592 | early_param("memtest", parse_memtest); | ||
593 | |||
594 | static void __init early_memtest(unsigned long start, unsigned long end) | ||
595 | { | ||
596 | u64 t_start, t_size; | ||
597 | unsigned pattern; | ||
598 | |||
599 | if (!memtest_pattern) | ||
600 | return; | ||
601 | |||
602 | printk(KERN_INFO "early_memtest: pattern num %d", memtest_pattern); | ||
603 | for (pattern = 0; pattern < memtest_pattern; pattern++) { | ||
604 | t_start = start; | ||
605 | t_size = 0; | ||
606 | while (t_start < end) { | ||
607 | t_start = find_e820_area_size(t_start, &t_size, 1); | ||
608 | |||
609 | /* done ? */ | ||
610 | if (t_start >= end) | ||
611 | break; | ||
612 | if (t_start + t_size > end) | ||
613 | t_size = end - t_start; | ||
614 | |||
615 | printk(KERN_CONT "\n %016llx - %016llx pattern %d", | ||
616 | (unsigned long long)t_start, | ||
617 | (unsigned long long)t_start + t_size, pattern); | ||
618 | |||
619 | memtest(t_start, t_size, pattern); | ||
620 | |||
621 | t_start += t_size; | ||
622 | } | ||
623 | } | ||
624 | printk(KERN_CONT "\n"); | ||
625 | } | ||
626 | #else | ||
627 | static void __init early_memtest(unsigned long start, unsigned long end) | ||
628 | { | ||
629 | } | ||
630 | #endif | ||
631 | |||
632 | static unsigned long __init kernel_physical_mapping_init(unsigned long start, | 520 | static unsigned long __init kernel_physical_mapping_init(unsigned long start, |
633 | unsigned long end, | 521 | unsigned long end, |
634 | unsigned long page_size_mask) | 522 | unsigned long page_size_mask) |