Defined in 4 files as a macro:
- arch/s390/include/asm/pgtable.h, line 343 (as a macro)
- arch/x86/include/asm/pgtable_64_types.h, line 63 (as a macro)
- include/asm-generic/5level-fixup.h, line 12 (as a macro)
- include/asm-generic/pgtable-nop4d.h, line 13 (as a macro)