read_iamr 234 arch/powerpc/mm/book3s64/pkeys.c u64 old_iamr = read_iamr() & ~((u64)(0x1ul) << pkeyshift(pkey)); read_iamr 278 arch/powerpc/mm/book3s64/pkeys.c thread->iamr = read_iamr(); read_iamr 370 arch/powerpc/mm/book3s64/pkeys.c if (execute && !(read_iamr() & (IAMR_EX_BIT << pkey_shift)))