2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
6 * Copyright (C) 1994 - 2001, 2003 by Ralf Baechle
7 * Copyright (C) 1999, 2000, 2001 Silicon Graphics, Inc.
10 #ifndef _ASM_NIOS2_PGALLOC_H
11 #define _ASM_NIOS2_PGALLOC_H
15 static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
18 set_pmd(pmd, __pmd((unsigned long)pte));
21 static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
24 set_pmd(pmd, __pmd((unsigned long)page_address(pte)));
26 #define pmd_pgtable(pmd) pmd_page(pmd)
29 * Initialize a new pmd table with invalid pointers.
31 extern void pmd_init(unsigned long page, unsigned long pagetable);
33 extern pgd_t *pgd_alloc(struct mm_struct *mm);
35 static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
37 free_pages((unsigned long)pgd, PGD_ORDER);
40 static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
41 unsigned long address)
45 pte = (pte_t *) __get_free_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO,
51 static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
52 unsigned long address)
56 pte = alloc_pages(GFP_KERNEL | __GFP_REPEAT, PTE_ORDER);
58 if (!pgtable_page_ctor(pte)) {
67 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
69 free_pages((unsigned long)pte, PTE_ORDER);
72 static inline void pte_free(struct mm_struct *mm, struct page *pte)
74 pgtable_page_dtor(pte);
75 __free_pages(pte, PTE_ORDER);
78 #define __pte_free_tlb(tlb, pte, addr) \
80 pgtable_page_dtor(pte); \
81 tlb_remove_page((tlb), (pte)); \
84 #define check_pgt_cache() do { } while (0)
86 #endif /* _ASM_NIOS2_PGALLOC_H */