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-um/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-um/pgalloc.h')
-rw-r--r-- | include/asm-um/pgalloc.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/include/asm-um/pgalloc.h b/include/asm-um/pgalloc.h new file mode 100644 index 000000000000..8fcb2fc0a892 --- /dev/null +++ b/include/asm-um/pgalloc.h | |||
@@ -0,0 +1,65 @@ | |||
1 | /* | ||
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 | ||
6 | */ | ||
7 | |||
8 | #ifndef __UM_PGALLOC_H | ||
9 | #define __UM_PGALLOC_H | ||
10 | |||
11 | #include "linux/config.h" | ||
12 | #include "linux/mm.h" | ||
13 | #include "asm/fixmap.h" | ||
14 | |||
15 | #define pmd_populate_kernel(mm, pmd, pte) \ | ||
16 | set_pmd(pmd, __pmd(_PAGE_TABLE + (unsigned long) __pa(pte))) | ||
17 | |||
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))) | ||
22 | |||
23 | /* | ||
24 | * Allocate and free page tables. | ||
25 | */ | ||
26 | extern pgd_t *pgd_alloc(struct mm_struct *); | ||
27 | extern void pgd_free(pgd_t *pgd); | ||
28 | |||
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); | ||
31 | |||
32 | static inline void pte_free_kernel(pte_t *pte) | ||
33 | { | ||
34 | free_page((unsigned long) pte); | ||
35 | } | ||
36 | |||
37 | static inline void pte_free(struct page *pte) | ||
38 | { | ||
39 | __free_page(pte); | ||
40 | } | ||
41 | |||
42 | #define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte)) | ||
43 | |||
44 | #ifdef CONFIG_3_LEVEL_PGTABLES | ||
45 | /* | ||
46 | * In the 3-level case we free the pmds as part of the pgd. | ||
47 | */ | ||
48 | #define pmd_free(x) do { } while (0) | ||
49 | #define __pmd_free_tlb(tlb,x) do { } while (0) | ||
50 | #endif | ||
51 | |||
52 | #define check_pgt_cache() do { } while (0) | ||
53 | |||
54 | #endif | ||
55 | |||
56 | /* | ||
57 | * Overrides for Emacs so that we follow Linus's tabbing style. | ||
58 | * Emacs will notice this stuff at the end of the file and automatically | ||
59 | * adjust the settings for this buffer only. This must remain at the end | ||
60 | * of the file. | ||
61 | * --------------------------------------------------------------------------- | ||
62 | * Local variables: | ||
63 | * c-file-style: "linux" | ||
64 | * End: | ||
65 | */ | ||