2 * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
3 * Copyright 2003 PathScale, Inc.
4 * Derived from include/asm-i386/pgalloc.h and include/asm-i386/pgtable.h
5 * Licensed under the GPL
11 #include "linux/config.h"
13 #include "asm/fixmap.h"
15 #define pmd_populate_kernel(mm, pmd, pte) \
16 set_pmd(pmd, __pmd(_PAGE_TABLE + (unsigned long) __pa(pte)))
18 #define pmd_populate(mm, pmd, pte) \
19 set_pmd(pmd, __pmd(_PAGE_TABLE + \
20 ((unsigned long long)page_to_pfn(pte) << \
21 (unsigned long long) PAGE_SHIFT)))
24 * Allocate and free page tables.
26 extern pgd_t *pgd_alloc(struct mm_struct *);
27 extern void pgd_free(pgd_t *pgd);
29 extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long);
30 extern struct page *pte_alloc_one(struct mm_struct *, unsigned long);
32 static inline void pte_free_kernel(pte_t *pte)
34 free_page((unsigned long) pte);
37 static inline void pte_free(struct page *pte)
42 #define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte))
44 #ifdef CONFIG_3_LEVEL_PGTABLES
46 extern __inline__ void pmd_free(pmd_t *pmd)
48 free_page((unsigned long)pmd);
51 #define __pmd_free_tlb(tlb,x) tlb_remove_page((tlb),virt_to_page(x))
54 #define check_pgt_cache() do { } while (0)
59 * Overrides for Emacs so that we follow Linus's tabbing style.
60 * Emacs will notice this stuff at the end of the file and automatically
61 * adjust the settings for this buffer only. This must remain at the end
63 * ---------------------------------------------------------------------------
65 * c-file-style: "linux"