__MEMORY_START
#define PHYSICAL_OFFSET (CONFIG_PHYSICAL_START - __MEMORY_START)
#define ___pa(x) ((x)-PAGE_OFFSET+__MEMORY_START)
#define ___va(x) ((x)+PAGE_OFFSET-__MEMORY_START)
#define PFN_START (__MEMORY_START >> PAGE_SHIFT)
start = INITRD_START + __MEMORY_START;
if (unlikely(start < __MEMORY_START)) {
start, __MEMORY_START);
u32 zero_base = (u32)__MEMORY_START + (u32)PHYSICAL_OFFSET;
min_low_pfn = __MEMORY_START >> PAGE_SHIFT;
memory_start = (unsigned long)__va(__MEMORY_START);
memblock_add(__MEMORY_START, __MEMORY_SIZE);
if (addr < __MEMORY_START)