static void __init
contig_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);
if (bootmap == -1L)
panic("Cannot find bootmem map of size %ld\n",bootmap_size);
bootmap_size = init_bootmem(bootmap >> PAGE_SHIFT, end_pfn);
#ifdef CONFIG_XEN
e820_bootmem_free(NODE_DATA(0), 0, xen_start_info->nr_pages<<PAGE_SHIFT);
#else
e820_bootmem_free(NODE_DATA(0), 0, end_pfn << PAGE_SHIFT);
#endif
reserve_bootmem(bootmap, bootmap_size);
}
static void __init contig_initmem_init(void)
{
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);
if (bootmap == -1L)
panic("Cannot find bootmem map of size %ld\n",bootmap_size);
bootmap_size = init_bootmem(bootmap >> PAGE_SHIFT, end_pfn);
e820_bootmem_free(&contig_page_data, 0, end_pfn << PAGE_SHIFT);
reserve_bootmem(bootmap, bootmap_size);
}
static void __init
contig_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);
if (bootmap == -1L)
panic("Cannot find bootmem map of size %ld\n",bootmap_size);
bootmap_size = init_bootmem(bootmap >> PAGE_SHIFT, end_pfn);
e820_bootmem_free(NODE_DATA(0), 0, end_pfn << PAGE_SHIFT);
reserve_bootmem(bootmap, bootmap_size, BOOTMEM_DEFAULT);
}
/**
* This sets up the bootstrap memory allocator. It is a simple
* bitmap based allocator that tracks memory at a page granularity.
* Once the bootstrap process is complete, each unallocated page
* is added to the real memory allocator's free pool. Memory allocated
* during bootstrap remains allocated forever, unless explicitly
* freed before turning things over to the real memory allocator.
*/
static void __init
setup_bootmem_allocator(
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_bootmem_free(0, end_pfn << PAGE_SHIFT);
reserve_bootmem(bootmap, bootmap_size);
}
