/* SPDX-License-Identifier: GPL-2.0 *//* * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com) * Copyright 2003 PathScale, Inc. * Derived from include/asm-i386/pgtable.h */ #ifndef __UM_PGTABLE_2LEVEL_H#define __UM_PGTABLE_2LEVEL_H #include <asm-generic/pgtable-nopmd.h> /* PGDIR_SHIFT determines what a third-level page table entry can map */ #define PGDIR_SHIFT	22#define PGDIR_SIZE	(1UL << PGDIR_SHIFT)#define PGDIR_MASK	(~(PGDIR_SIZE-1)) /* * entries per page directory level: the i386 is two-level, so * we don't really have any PMD directory physically. */#define PTRS_PER_PTE	1024#define USER_PTRS_PER_PGD ((TASK_SIZE + (PGDIR_SIZE - 1)) / PGDIR_SIZE)#define PTRS_PER_PGD	1024 #define pte_ERROR(e) \        printk("%s:%d: bad pte %p(%08lx).\n", __FILE__, __LINE__, &(e), \	       pte_val(e))#define pgd_ERROR(e) \        printk("%s:%d: bad pgd %p(%08lx).\n", __FILE__, __LINE__, &(e), \	       pgd_val(e)) static inline int pgd_needsync(pgd_t pgd)	{ return 0; }static inline void pgd_mkuptodate(pgd_t pgd)	{ } #define set_pmd(pmdptr, pmdval) (*(pmdptr) = (pmdval)) #define pte_pfn(x) phys_to_pfn(pte_val(x))#define pfn_pmd(pfn, prot) __pmd(pfn_to_phys(pfn) | pgprot_val(prot)) #endif