| 1 |
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| 2 | |
| 3 | * Copyright (C) 2000, 2001, 2002 Jeff Dike ([email protected])
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| 4 | * Copyright 2003 PathScale, Inc.
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| 5 | * Derived from include/asm-i386/pgalloc.h and include/asm-i386/pgtable.h
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| 6 |
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| 7 |
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| 8 | #ifndef __UM_PGALLOC_H
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| 9 | #define __UM_PGALLOC_H
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| 10 |
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| 11 | #include <linux/mm.h>
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| 12 |
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| 13 | #include <asm-generic/pgalloc.h>
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| 14 |
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| 15 | #define pmd_populate_kernel(mm, pmd, pte) \
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| 16 | set_pmd(pmd, __pmd(_PAGE_TABLE + (unsigned long) __pa(pte)))
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| 17 |
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| 18 | #define pmd_populate(mm, pmd, pte) \
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| 19 | set_pmd(pmd, __pmd(_PAGE_TABLE + \
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| 20 | ((unsigned long long)page_to_pfn(pte) << \
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| 21 | (unsigned long long) PAGE_SHIFT)))
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| 22 |
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| 23 | |
| 24 | * Allocate and free page tables.
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| 25 |
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| 26 | extern pgd_t *pgd_alloc(struct mm_struct *);
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| 27 |
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| 28 | #define __pte_free_tlb(tlb, pte, address) \
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| 29 | tlb_remove_ptdesc((tlb), page_ptdesc(pte))
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| 30 |
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| 31 | #if CONFIG_PGTABLE_LEVELS > 2
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| 32 |
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| 33 | #define __pmd_free_tlb(tlb, pmd, address) \
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| 34 | tlb_remove_ptdesc((tlb), virt_to_ptdesc(pmd))
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| 35 |
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| 36 | #if CONFIG_PGTABLE_LEVELS > 3
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| 37 |
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| 38 | #define __pud_free_tlb(tlb, pud, address) \
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| 39 | tlb_remove_ptdesc((tlb), virt_to_ptdesc(pud))
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| 40 |
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| 41 | #endif
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| 42 | #endif
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| 43 |
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| 44 | #endif
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| 45 |
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