memblock_region_memory_base_pfn
res->start = __pfn_to_phys(memblock_region_memory_base_pfn(region));
res->start = __pfn_to_phys(memblock_region_memory_base_pfn(region));
res->start = __pfn_to_phys(memblock_region_memory_base_pfn(region));
start_pfn = clamp(memblock_region_memory_base_pfn(r),
usable_startpfn = memblock_region_memory_base_pfn(r);
usable_startpfn = memblock_region_memory_base_pfn(r);
if (*pfn >= memblock_region_memory_base_pfn(r) &&