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x86: introduce initmem_init for 64 bit

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Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Yinghai Lu
2008-06-22 02:44:49 -07:00
committed by Ingo Molnar
parent 17b4cceb1f
commit 1f75d7e32e
4 changed files with 18 additions and 2 deletions
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16
arch/x86/mm/init_64.c
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@ -611,6 +611,22 @@ unsigned long __init_refok init_memory_mapping(unsigned long start, unsigned lon
}
#ifndef CONFIG_NUMA
void __init initmem_init(unsigned long start_pfn, unsigned long end_pfn)
{
unsigned long bootmap_size, bootmap;
bootmap_size = bootmem_bootmap_pages(end_pfn)<<PAGE_SHIFT;
bootmap = find_e820_area(0, end_pfn<<PAGE_SHIFT, bootmap_size,
PAGE_SIZE);
if (bootmap == -1L)
panic("Cannot find bootmem map of size %ld\n", bootmap_size);
bootmap_size = init_bootmem(bootmap >> PAGE_SHIFT, end_pfn);
e820_register_active_regions(0, start_pfn, end_pfn);
free_bootmem_with_active_regions(0, end_pfn);
early_res_to_bootmem(0, end_pfn<<PAGE_SHIFT);
reserve_bootmem(bootmap, bootmap_size, BOOTMEM_DEFAULT);
}
void __init paging_init(void)
{
unsigned long max_zone_pfns[MAX_NR_ZONES];