PPC_PIN_SIZE
#ifdef PPC_PIN_SIZE
#define VMALLOC_START (((ALIGN((long)high_memory, PPC_PIN_SIZE) + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1)))
unsigned long memstart = memstart_addr & ~(PPC_PIN_SIZE - 1);
for (addr = memstart + PPC_PIN_SIZE; addr < lowmem_end_addr;
addr += PPC_PIN_SIZE) {
size = (min_t(u64, first_memblock_size, PPC_PIN_SIZE));
unsigned long memstart = memstart_addr & ~(PPC_PIN_SIZE - 1);
for (addr = memstart + PPC_PIN_SIZE; addr < lowmem_end_addr;
addr += PPC_PIN_SIZE) {