PXSEG 290 arch/sh/include/asm/io.h if (likely(PXSEG(offset) < P3SEG && PXSEG(last_addr) < P3SEG)) { PXSEG 99 arch/sh/mm/ioremap.c if (PXSEG(offset) < P3SEG || offset >= P3_ADDR_MAX)