_PAGE_WT           42 arch/sh/include/asm/pgtable_32.h #define	_PAGE_WT	0x001		/* WT-bit on SH-4, 0 on SH-3 */
_PAGE_WT          103 arch/sh/include/asm/pgtable_64.h #define _PAGE_WT	0x001  /* CB0: if cacheable, 1->write-thru, 0->write-back */