MIPS_MAAR_ADDR
BUG_ON(lower & (0xffff | ~(MIPS_MAAR_ADDR << 4)));
|| ((upper & ~0xffffull) & ~(MIPS_MAAR_ADDR << 4)));
write_c0_maar(((upper >> 4) & MIPS_MAAR_ADDR) | attrs);
lower = (lower & MIPS_MAAR_ADDR) << 4;
upper = ((upper & MIPS_MAAR_ADDR) << 4) | 0xffff;