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/*
* Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
* Copyright 2003 PathScale, Inc.
* Derived from include/asm-i386/pgtable.h
* Licensed under the GPL
*/
#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 FIRST_USER_ADDRESS 0UL
#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_newpage(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_pte(pfn, prot) __pte(pfn_to_phys(pfn) | pgprot_val(prot))
#define pfn_pmd(pfn, prot) __pmd(pfn_to_phys(pfn) | pgprot_val(prot))
#endif