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