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97 lines
2.3 KiB
97 lines
2.3 KiB
/* |
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* This file is subject to the terms and conditions of the GNU General Public |
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* License. See the file "COPYING" in the main directory of this archive |
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* for more details. |
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* |
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* Copyright (C) 1994 - 2001, 2003 by Ralf Baechle |
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* Copyright (C) 1999, 2000, 2001 Silicon Graphics, Inc. |
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*/ |
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#ifndef _ASM_PGALLOC_H |
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#define _ASM_PGALLOC_H |
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#include <linux/highmem.h> |
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#include <linux/mm.h> |
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#include <linux/sched.h> |
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#define __HAVE_ARCH_PMD_ALLOC_ONE |
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#define __HAVE_ARCH_PUD_ALLOC_ONE |
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#include <asm-generic/pgalloc.h> |
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static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, |
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pte_t *pte) |
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{ |
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set_pmd(pmd, __pmd((unsigned long)pte)); |
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} |
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static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, |
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pgtable_t pte) |
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{ |
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set_pmd(pmd, __pmd((unsigned long)page_address(pte))); |
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} |
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#define pmd_pgtable(pmd) pmd_page(pmd) |
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/* |
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* Initialize a new pmd table with invalid pointers. |
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*/ |
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extern void pmd_init(unsigned long page, unsigned long pagetable); |
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#ifndef __PAGETABLE_PMD_FOLDED |
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static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) |
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{ |
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set_pud(pud, __pud((unsigned long)pmd)); |
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} |
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#endif |
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/* |
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* Initialize a new pgd / pmd table with invalid pointers. |
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*/ |
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extern void pgd_init(unsigned long page); |
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extern pgd_t *pgd_alloc(struct mm_struct *mm); |
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#define __pte_free_tlb(tlb,pte,address) \ |
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do { \ |
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pgtable_pte_page_dtor(pte); \ |
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tlb_remove_page((tlb), pte); \ |
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} while (0) |
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#ifndef __PAGETABLE_PMD_FOLDED |
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static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address) |
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{ |
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pmd_t *pmd; |
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pmd = (pmd_t *) __get_free_pages(GFP_KERNEL, PMD_ORDER); |
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if (pmd) |
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pmd_init((unsigned long)pmd, (unsigned long)invalid_pte_table); |
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return pmd; |
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} |
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#define __pmd_free_tlb(tlb, x, addr) pmd_free((tlb)->mm, x) |
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#endif |
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#ifndef __PAGETABLE_PUD_FOLDED |
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static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long address) |
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{ |
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pud_t *pud; |
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pud = (pud_t *) __get_free_pages(GFP_KERNEL, PUD_ORDER); |
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if (pud) |
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pud_init((unsigned long)pud, (unsigned long)invalid_pmd_table); |
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return pud; |
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} |
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static inline void p4d_populate(struct mm_struct *mm, p4d_t *p4d, pud_t *pud) |
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{ |
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set_p4d(p4d, __p4d((unsigned long)pud)); |
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} |
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#define __pud_free_tlb(tlb, x, addr) pud_free((tlb)->mm, x) |
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#endif /* __PAGETABLE_PUD_FOLDED */ |
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extern void pagetable_init(void); |
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#endif /* _ASM_PGALLOC_H */
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