1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __ASM_SH_PGTABLE_2LEVEL_H 3 #define __ASM_SH_PGTABLE_2LEVEL_H 4 5 #include <asm-generic/pgtable-nopmd.h> 6 7 /* 8 * traditional two-level paging structure 9 */ 10 #define PAGETABLE_LEVELS 2 11 12 /* PTE bits */ 13 #define PTE_MAGNITUDE 2 /* 32-bit PTEs */ 14 15 #define PTE_SHIFT PAGE_SHIFT 16 #define PTE_BITS (PTE_SHIFT - PTE_MAGNITUDE) 17 18 /* PGD bits */ 19 #define PGDIR_SHIFT (PTE_SHIFT + PTE_BITS) 20 21 #define PTRS_PER_PGD (PAGE_SIZE / (1 << PTE_MAGNITUDE)) 22 #define USER_PTRS_PER_PGD (TASK_SIZE/PGDIR_SIZE) 23 24 #endif /* __ASM_SH_PGTABLE_2LEVEL_H */ 25