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-cris/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-cris/pgalloc.h')
-rw-r--r-- | include/asm-cris/pgalloc.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/include/asm-cris/pgalloc.h b/include/asm-cris/pgalloc.h new file mode 100644 index 000000000000..b202e62ed6e0 --- /dev/null +++ b/include/asm-cris/pgalloc.h | |||
@@ -0,0 +1,62 @@ | |||
1 | #ifndef _CRIS_PGALLOC_H | ||
2 | #define _CRIS_PGALLOC_H | ||
3 | |||
4 | #include <linux/threads.h> | ||
5 | #include <linux/mm.h> | ||
6 | |||
7 | #define pmd_populate_kernel(mm, pmd, pte) pmd_set(pmd, pte) | ||
8 | #define pmd_populate(mm, pmd, pte) pmd_set(pmd, page_address(pte)) | ||
9 | |||
10 | /* | ||
11 | * Allocate and free page tables. | ||
12 | */ | ||
13 | |||
14 | extern inline pgd_t *pgd_alloc (struct mm_struct *mm) | ||
15 | { | ||
16 | return (pgd_t *)get_zeroed_page(GFP_KERNEL); | ||
17 | } | ||
18 | |||
19 | extern inline void pgd_free (pgd_t *pgd) | ||
20 | { | ||
21 | free_page((unsigned long)pgd); | ||
22 | } | ||
23 | |||
24 | extern inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address) | ||
25 | { | ||
26 | pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO); | ||
27 | return pte; | ||
28 | } | ||
29 | |||
30 | extern inline struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address) | ||
31 | { | ||
32 | struct page *pte; | ||
33 | pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0); | ||
34 | return pte; | ||
35 | } | ||
36 | |||
37 | extern inline void pte_free_kernel(pte_t *pte) | ||
38 | { | ||
39 | free_page((unsigned long)pte); | ||
40 | } | ||
41 | |||
42 | extern inline void pte_free(struct page *pte) | ||
43 | { | ||
44 | __free_page(pte); | ||
45 | } | ||
46 | |||
47 | |||
48 | #define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte)) | ||
49 | |||
50 | /* | ||
51 | * We don't have any real pmd's, and this code never triggers because | ||
52 | * the pgd will always be present.. | ||
53 | */ | ||
54 | |||
55 | #define pmd_alloc_one(mm, addr) ({ BUG(); ((pmd_t *)2); }) | ||
56 | #define pmd_free(x) do { } while (0) | ||
57 | #define __pmd_free_tlb(tlb,x) do { } while (0) | ||
58 | #define pgd_populate(mm, pmd, pte) BUG() | ||
59 | |||
60 | #define check_pgt_cache() do { } while (0) | ||
61 | |||
62 | #endif | ||