TTBR_ASID_MASK 17 arch/arm64/include/asm/asm-uaccess.h bic \tmp1, \tmp1, #TTBR_ASID_MASK TTBR_ASID_MASK 114 arch/arm64/include/asm/uaccess.h ttbr &= ~TTBR_ASID_MASK; TTBR_ASID_MASK 138 arch/arm64/include/asm/uaccess.h ttbr1 &= ~TTBR_ASID_MASK; /* safety measure */ TTBR_ASID_MASK 139 arch/arm64/include/asm/uaccess.h ttbr1 |= ttbr0 & TTBR_ASID_MASK;