Cregit: Linux 5.2: pgtable-2level.h

Contributors: 4
Author	Tokens	Token Proportion	Commits	Commit Proportion
Matt Fleming	37	77.08%	1	20.00%
Paul Mundt	7	14.58%	2	40.00%
Kirill A. Shutemov	3	6.25%	1	20.00%
Greg Kroah-Hartman	1	2.08%	1	20.00%
Total	48		5

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_SH_PGTABLE_2LEVEL_H
#define __ASM_SH_PGTABLE_2LEVEL_H

#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopmd.h>

/*
 * traditional two-level paging structure
 */
#define PAGETABLE_LEVELS	2

/* PTE bits */
#define PTE_MAGNITUDE		2	/* 32-bit PTEs */

#define PTE_SHIFT		PAGE_SHIFT
#define PTE_BITS		(PTE_SHIFT - PTE_MAGNITUDE)

/* PGD bits */
#define PGDIR_SHIFT		(PTE_SHIFT + PTE_BITS)

#define PTRS_PER_PGD		(PAGE_SIZE / (1 << PTE_MAGNITUDE))
#define USER_PTRS_PER_PGD	(TASK_SIZE/PGDIR_SIZE)

#endif /* __ASM_SH_PGTABLE_2LEVEL_H */