PMD_SECT_WBWA      46 arch/arm/include/asm/pgtable-2level-hwdef.h #define PMD_SECT_WBWA		(PMD_SECT_TEX(1) | PMD_SECT_CACHEABLE | PMD_SECT_BUFFERABLE)
PMD_SECT_WBWA      52 arch/arm/include/asm/pgtable-3level-hwdef.h #define PMD_SECT_WBWA		(_AT(pmdval_t, 7) << 2)	/* normal inner write-alloc */