init.c (47ea3c15498154f634c304e08dee284efdd7dceb) init.c (d0e775afb94d9b61ba6c63299169ef7a87b68189)
1/*
2 * linux/arch/arm/mm/init.c
3 *
4 * Copyright (C) 1995-2005 Russell King
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.

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431 * Align up here since the VM subsystem insists that the
432 * memmap entries are valid from the bank end aligned to
433 * MAX_ORDER_NR_PAGES.
434 */
435 prev_bank_end = ALIGN(bank_pfn_end(bank), MAX_ORDER_NR_PAGES);
436 }
437}
438
1/*
2 * linux/arch/arm/mm/init.c
3 *
4 * Copyright (C) 1995-2005 Russell King
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.

--- 422 unchanged lines hidden (view full) ---

431 * Align up here since the VM subsystem insists that the
432 * memmap entries are valid from the bank end aligned to
433 * MAX_ORDER_NR_PAGES.
434 */
435 prev_bank_end = ALIGN(bank_pfn_end(bank), MAX_ORDER_NR_PAGES);
436 }
437}
438
439static void __init free_highpages(void)
440{
441#ifdef CONFIG_HIGHMEM
442 int i;
443
444 /* set highmem page free */
445 for_each_bank (i, &meminfo) {
446 unsigned long start = bank_pfn_start(&meminfo.bank[i]);
447 unsigned long end = bank_pfn_end(&meminfo.bank[i]);
448 if (start >= max_low_pfn + PHYS_PFN_OFFSET)
449 totalhigh_pages += free_area(start, end, NULL);
450 }
451 totalram_pages += totalhigh_pages;
452#endif
453}
454
439/*
440 * mem_init() marks the free areas in the mem_map and tells us how much
441 * memory is free. This is done after various parts of the system have
442 * claimed their memory after the kernel image.
443 */
444void __init mem_init(void)
445{
446 unsigned long reserved_pages, free_pages;

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460 totalram_pages += free_all_bootmem();
461
462#ifdef CONFIG_SA1111
463 /* now that our DMA memory is actually so designated, we can free it */
464 totalram_pages += free_area(PHYS_PFN_OFFSET,
465 __phys_to_pfn(__pa(swapper_pg_dir)), NULL);
466#endif
467
455/*
456 * mem_init() marks the free areas in the mem_map and tells us how much
457 * memory is free. This is done after various parts of the system have
458 * claimed their memory after the kernel image.
459 */
460void __init mem_init(void)
461{
462 unsigned long reserved_pages, free_pages;

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476 totalram_pages += free_all_bootmem();
477
478#ifdef CONFIG_SA1111
479 /* now that our DMA memory is actually so designated, we can free it */
480 totalram_pages += free_area(PHYS_PFN_OFFSET,
481 __phys_to_pfn(__pa(swapper_pg_dir)), NULL);
482#endif
483
468#ifdef CONFIG_HIGHMEM
469 /* set highmem page free */
470 for_each_bank (i, &meminfo) {
471 unsigned long start = bank_pfn_start(&meminfo.bank[i]);
472 unsigned long end = bank_pfn_end(&meminfo.bank[i]);
473 if (start >= max_low_pfn + PHYS_PFN_OFFSET)
474 totalhigh_pages += free_area(start, end, NULL);
475 }
476 totalram_pages += totalhigh_pages;
477#endif
484 free_highpages();
478
479 reserved_pages = free_pages = 0;
480
481 for_each_bank(i, &meminfo) {
482 struct membank *bank = &meminfo.bank[i];
483 unsigned int pfn1, pfn2;
484 struct page *page, *end;
485

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486 reserved_pages = free_pages = 0;
487
488 for_each_bank(i, &meminfo) {
489 struct membank *bank = &meminfo.bank[i];
490 unsigned int pfn1, pfn2;
491 struct page *page, *end;
492

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