linux/arch/sh/include/asm/pgtable-2level.h
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   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef __ASM_SH_PGTABLE_2LEVEL_H
   3#define __ASM_SH_PGTABLE_2LEVEL_H
   4
   5#define __ARCH_USE_5LEVEL_HACK
   6#include <asm-generic/pgtable-nopmd.h>
   7
   8/*
   9 * traditional two-level paging structure
  10 */
  11#define PAGETABLE_LEVELS        2
  12
  13/* PTE bits */
  14#define PTE_MAGNITUDE           2       /* 32-bit PTEs */
  15
  16#define PTE_SHIFT               PAGE_SHIFT
  17#define PTE_BITS                (PTE_SHIFT - PTE_MAGNITUDE)
  18
  19/* PGD bits */
  20#define PGDIR_SHIFT             (PTE_SHIFT + PTE_BITS)
  21
  22#define PTRS_PER_PGD            (PAGE_SIZE / (1 << PTE_MAGNITUDE))
  23#define USER_PTRS_PER_PGD       (TASK_SIZE/PGDIR_SIZE)
  24
  25#endif /* __ASM_SH_PGTABLE_2LEVEL_H */
  26