blob: 0f25d5fa86f3ea5304112e852337e4ba7b06713e [file] [log] [blame]
/* MN10300 Page and page table/directory allocation
* Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public Licence
* as published by the Free Software Foundation; either version
* 2 of the Licence, or (at your option) any later version.
#ifndef _ASM_PGALLOC_H
#define _ASM_PGALLOC_H
#include <asm/page.h>
#include <linux/threads.h>
#include <linux/mm.h> /* for struct page */
struct mm_struct;
struct page;
/* attach a page table to a PMD entry */
#define pmd_populate_kernel(mm, pmd, pte) \
set_pmd(pmd, __pmd(__pa(pte) | _PAGE_TABLE))
static inline
void pmd_populate(struct mm_struct *mm, pmd_t *pmd, struct page *pte)
set_pmd(pmd, __pmd((page_to_pfn(pte) << PAGE_SHIFT) | _PAGE_TABLE));
#define pmd_pgtable(pmd) pmd_page(pmd)
* Allocate and free page tables.
extern pgd_t *pgd_alloc(struct mm_struct *);
extern void pgd_free(struct mm_struct *, pgd_t *);
extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long);
extern struct page *pte_alloc_one(struct mm_struct *, unsigned long);
static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
free_page((unsigned long) pte);
static inline void pte_free(struct mm_struct *mm, struct page *pte)
#define __pte_free_tlb(tlb, pte, addr) tlb_remove_page((tlb), (pte))
#endif /* _ASM_PGALLOC_H */