diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-i386/pgalloc.h |
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 @@ | |||
1 | #ifndef _I386_PGALLOC_H | ||
2 | #define _I386_PGALLOC_H | ||
3 | |||
4 | #include <linux/config.h> | ||
5 | #include <asm/fixmap.h> | ||
6 | #include <linux/threads.h> | ||
7 | #include <linux/mm.h> /* for struct page */ | ||
8 | |||
9 | #define pmd_populate_kernel(mm, pmd, pte) \ | ||
10 | set_pmd(pmd, __pmd(_PAGE_TABLE + __pa(pte))) | ||
11 | |||
12 | #define pmd_populate(mm, pmd, pte) \ | ||
13 | set_pmd(pmd, __pmd(_PAGE_TABLE + \ | ||
14 | ((unsigned long long)page_to_pfn(pte) << \ | ||
15 | (unsigned long long) PAGE_SHIFT))) | ||
16 | /* | ||
17 | * Allocate and free page tables. | ||
18 | */ | ||
19 | extern pgd_t *pgd_alloc(struct mm_struct *); | ||
20 | extern void pgd_free(pgd_t *pgd); | ||
21 | |||
22 | extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long); | ||
23 | extern struct page *pte_alloc_one(struct mm_struct *, unsigned long); | ||
24 | |||
25 | static inline void pte_free_kernel(pte_t *pte) | ||
26 | { | ||
27 | free_page((unsigned long)pte); | ||
28 | } | ||
29 | |||
30 | static inline void pte_free(struct page *pte) | ||
31 | { | ||
32 | __free_page(pte); | ||
33 | } | ||
34 | |||
35 | |||
36 | #define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte)) | ||
37 | |||
38 | #ifdef CONFIG_X86_PAE | ||
39 | /* | ||
40 | * In the PAE case we free the pmds as part of the pgd. | ||
41 | */ | ||
42 | #define pmd_alloc_one(mm, addr) ({ BUG(); ((pmd_t *)2); }) | ||
43 | #define pmd_free(x) do { } while (0) | ||
44 | #define __pmd_free_tlb(tlb,x) do { } while (0) | ||
45 | #define pud_populate(mm, pmd, pte) BUG() | ||
46 | #endif | ||
47 | |||
48 | #define check_pgt_cache() do { } while (0) | ||
49 | |||
50 | #endif /* _I386_PGALLOC_H */ | ||