static unsigned long __init free_low_memory_core_early(void)
{
unsigned long count = 0;
phys_addr_t start, end;
u64 i;
memblock_clear_hotplug(0, -1);
for_each_reserved_mem_region(i, &start, &end)
reserve_bootmem_region(start, end);
for_each_free_mem_range(i, NUMA_NO_NODE, MEMBLOCK_NONE, &start, &end,
NULL)
count += __free_memory_core(start, end);
#ifdef CONFIG_ARCH_DISCARD_MEMBLOCK
{
phys_addr_t size;
/* Free memblock.reserved array if it was allocated */
size = get_allocated_memblock_reserved_regions_info(&start);
if (size)
count += __free_memory_core(start, start + size);
/* Free memblock.memory array if it was allocated */
size = get_allocated_memblock_memory_regions_info(&start);
if (size)
count += __free_memory_core(start, start + size);
}
#endif
return count;
}
static unsigned long __init free_low_memory_core_early(void)
{
unsigned long count = 0;
phys_addr_t start, end;
u64 i;
/* IAMROOT-12AB:
* -------------
* memblock 전체에서 MEMBLOCK_HOTPLUG 플래그를 제거한다.
*/
memblock_clear_hotplug(0, -1);
for_each_free_mem_range(i, NUMA_NO_NODE, &start, &end, NULL)
count += __free_memory_core(start, end);
/* IAMROOT-12AB:
* -------------
* memblock을 관리하는 구조체들이 버디시스템으로 전환 후에 필요 없어지므로
* 사용했던 구조체들을 삭제한다.
* (단 HOTPLUG 옵션이 사용되는 경우 memblock은 계속 필요하다)
*
*/
#ifdef CONFIG_ARCH_DISCARD_MEMBLOCK
{
phys_addr_t size;
/* Free memblock.reserved array if it was allocated */
size = get_allocated_memblock_reserved_regions_info(&start);
if (size)
count += __free_memory_core(start, start + size);
/* Free memblock.memory array if it was allocated */
size = get_allocated_memblock_memory_regions_info(&start);
if (size)
count += __free_memory_core(start, start + size);
}
#endif
return count;
}
static unsigned long __init free_low_memory_core_early(void)
{
unsigned long count = 0;
phys_addr_t start, end;
u64 i;
memblock_clear_hotplug(0, -1);
for_each_reserved_mem_region(i, &start, &end)
reserve_bootmem_region(start, end);
/*
* We need to use NUMA_NO_NODE instead of NODE_DATA(0)->node_id
* because in some case like Node0 doesn't have RAM installed
* low ram will be on Node1
*/
for_each_free_mem_range(i, NUMA_NO_NODE, MEMBLOCK_NONE, &start, &end,
NULL)
count += __free_memory_core(start, end);
return count;
}
