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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 02:20:36 +0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 02:20:36 +0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-i386/pgalloc.h | |
download | linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-i386/pgalloc.h')
-rw-r--r-- | include/asm-i386/pgalloc.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/include/asm-i386/pgalloc.h b/include/asm-i386/pgalloc.h new file mode 100644 index 000000000000..0380c3dc1f7e --- /dev/null +++ b/include/asm-i386/pgalloc.h @@ -0,0 +1,50 @@ +#ifndef _I386_PGALLOC_H +#define _I386_PGALLOC_H + +#include <linux/config.h> +#include <asm/fixmap.h> +#include <linux/threads.h> +#include <linux/mm.h> /* for struct page */ + +#define pmd_populate_kernel(mm, pmd, pte) \ + set_pmd(pmd, __pmd(_PAGE_TABLE + __pa(pte))) + +#define pmd_populate(mm, pmd, pte) \ + set_pmd(pmd, __pmd(_PAGE_TABLE + \ + ((unsigned long long)page_to_pfn(pte) << \ + (unsigned long long) PAGE_SHIFT))) +/* + * Allocate and free page tables. + */ +extern pgd_t *pgd_alloc(struct mm_struct *); +extern void pgd_free(pgd_t *pgd); + +extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long); +extern struct page *pte_alloc_one(struct mm_struct *, unsigned long); + +static inline void pte_free_kernel(pte_t *pte) +{ + free_page((unsigned long)pte); +} + +static inline void pte_free(struct page *pte) +{ + __free_page(pte); +} + + +#define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte)) + +#ifdef CONFIG_X86_PAE +/* + * In the PAE case we free the pmds as part of the pgd. + */ +#define pmd_alloc_one(mm, addr) ({ BUG(); ((pmd_t *)2); }) +#define pmd_free(x) do { } while (0) +#define __pmd_free_tlb(tlb,x) do { } while (0) +#define pud_populate(mm, pmd, pte) BUG() +#endif + +#define check_pgt_cache() do { } while (0) + +#endif /* _I386_PGALLOC_H */ |