/* * This file is subject to the terms and conditions of the GNU General Public * License.  See the file "COPYING" in the main directory of this archive * for more details. * * Copyright (C) 1994 - 2001, 2003 by Ralf Baechle * Copyright (C) 1999, 2000, 2001 Silicon Graphics, Inc. */#ifndef _ASM_PGALLOC_H#define _ASM_PGALLOC_H #include <linux/highmem.h>#include <linux/mm.h>#include <linux/sched.h> #include <asm-generic/pgalloc.h>	/* for pte_{alloc,free}_one */ static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,	pte_t *pte){	set_pmd(pmd, __pmd((unsigned long)pte));} static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,	pgtable_t pte){	set_pmd(pmd, __pmd((unsigned long)page_address(pte)));}#define pmd_pgtable(pmd) pmd_page(pmd) /* * Initialize a new pmd table with invalid pointers. */extern void pmd_init(unsigned long page, unsigned long pagetable); #ifndef __PAGETABLE_PMD_FOLDED static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd){	set_pud(pud, __pud((unsigned long)pmd));}#endif /* * Initialize a new pgd / pmd table with invalid pointers. */extern void pgd_init(unsigned long page);extern pgd_t *pgd_alloc(struct mm_struct *mm); static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd){	free_pages((unsigned long)pgd, PGD_ORDER);} #define __pte_free_tlb(tlb,pte,address)			\do {							\	pgtable_page_dtor(pte);				\	tlb_remove_page((tlb), pte);			\} while (0) #ifndef __PAGETABLE_PMD_FOLDED static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address){	pmd_t *pmd; 	pmd = (pmd_t *) __get_free_pages(GFP_KERNEL, PMD_ORDER);	if (pmd)		pmd_init((unsigned long)pmd, (unsigned long)invalid_pte_table);	return pmd;} static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd){	free_pages((unsigned long)pmd, PMD_ORDER);} #define __pmd_free_tlb(tlb, x, addr)	pmd_free((tlb)->mm, x) #endif #ifndef __PAGETABLE_PUD_FOLDED static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long address){	pud_t *pud; 	pud = (pud_t *) __get_free_pages(GFP_KERNEL, PUD_ORDER);	if (pud)		pud_init((unsigned long)pud, (unsigned long)invalid_pmd_table);	return pud;} static inline void pud_free(struct mm_struct *mm, pud_t *pud){	free_pages((unsigned long)pud, PUD_ORDER);} static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud){	set_pgd(pgd, __pgd((unsigned long)pud));} #define __pud_free_tlb(tlb, x, addr)	pud_free((tlb)->mm, x) #endif /* __PAGETABLE_PUD_FOLDED */ #define check_pgt_cache()	do { } while (0) extern void pagetable_init(void); #endif /* _ASM_PGALLOC_H */