2 * Copyright (C) 2004-2006 Atmel Corporation
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
8 #ifndef __ASM_AVR32_PGALLOC_H
9 #define __ASM_AVR32_PGALLOC_H
13 static inline void pmd_populate_kernel(struct mm_struct *mm,
14 pmd_t *pmd, pte_t *pte)
16 set_pmd(pmd, __pmd((unsigned long)pte));
19 static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
22 set_pmd(pmd, __pmd((unsigned long)page_address(pte)));
24 #define pmd_pgtable(pmd) pmd_page(pmd)
27 * Allocate and free page tables
29 static inline pgd_t *pgd_alloc(struct mm_struct *mm)
33 pgd = (pgd_t *)get_zeroed_page(GFP_KERNEL | __GFP_REPEAT);
35 memcpy(pgd + USER_PTRS_PER_PGD,
36 swapper_pg_dir + USER_PTRS_PER_PGD,
37 (PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
42 static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
44 free_page((unsigned long)pgd);
47 static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
48 unsigned long address)
52 pte = (pte_t *)get_zeroed_page(GFP_KERNEL | __GFP_REPEAT);
57 static inline struct page *pte_alloc_one(struct mm_struct *mm,
58 unsigned long address)
62 pte = alloc_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO);
65 pgtable_page_ctor(pte);
69 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
71 free_page((unsigned long)pte);
74 static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
76 pgtable_page_dtor(pte);
80 #define __pte_free_tlb(tlb,pte) \
82 pgtable_page_dtor(pte); \
83 tlb_remove_page((tlb), pte); \
86 #define check_pgt_cache() do { } while(0)
88 #endif /* __ASM_AVR32_PGALLOC_H */