USER_PGD_PTRS     152 include/asm-frv/pgtable.h #define KERNEL_PGD_PTRS		(PTRS_PER_PGD - USER_PGD_PTRS)
USER_PGD_PTRS      71 include/asm-mn10300/pgtable.h #define KERNEL_PGD_PTRS		(PTRS_PER_PGD - USER_PGD_PTRS)