diff options
Diffstat (limited to 'arch/x86/mm/init_64.c')
| -rw-r--r-- | arch/x86/mm/init_64.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 97c2bc741e9..99a091ee5a6 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -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]; |