diff options
author | David Howells <dhowells@redhat.com> | 2009-04-09 20:48:06 -0400 |
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committer | David Howells <dhowells@redhat.com> | 2009-04-09 20:48:06 -0400 |
commit | e69cc9278831139660cb99bde52908f145338d77 (patch) | |
tree | fdc1f002b6036a2220d73c86a253886fa76015dc /arch/frv/include/asm/pgalloc.h | |
parent | 187934655fa0637d4ef3967d4543c6dcccf33058 (diff) |
FRV: Move to arch/frv/include/asm/
Move arch headers from include/asm-frv/ to arch/frv/include/asm/.
Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'arch/frv/include/asm/pgalloc.h')
-rw-r--r-- | arch/frv/include/asm/pgalloc.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/arch/frv/include/asm/pgalloc.h b/arch/frv/include/asm/pgalloc.h new file mode 100644 index 000000000000..971e6addb009 --- /dev/null +++ b/arch/frv/include/asm/pgalloc.h | |||
@@ -0,0 +1,69 @@ | |||
1 | /* pgalloc.h: Page allocation routines for FRV | ||
2 | * | ||
3 | * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved. | ||
4 | * Written by David Howells (dhowells@redhat.com) | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or | ||
7 | * modify it under the terms of the GNU General Public License | ||
8 | * as published by the Free Software Foundation; either version | ||
9 | * 2 of the License, or (at your option) any later version. | ||
10 | * | ||
11 | * Derived from: | ||
12 | * include/asm-m68knommu/pgalloc.h | ||
13 | * include/asm-i386/pgalloc.h | ||
14 | */ | ||
15 | #ifndef _ASM_PGALLOC_H | ||
16 | #define _ASM_PGALLOC_H | ||
17 | |||
18 | #include <asm/setup.h> | ||
19 | #include <asm/virtconvert.h> | ||
20 | |||
21 | #ifdef CONFIG_MMU | ||
22 | |||
23 | #define pmd_populate_kernel(mm, pmd, pte) __set_pmd(pmd, __pa(pte) | _PAGE_TABLE) | ||
24 | #define pmd_populate(MM, PMD, PAGE) \ | ||
25 | do { \ | ||
26 | __set_pmd((PMD), page_to_pfn(PAGE) << PAGE_SHIFT | _PAGE_TABLE); \ | ||
27 | } while(0) | ||
28 | #define pmd_pgtable(pmd) pmd_page(pmd) | ||
29 | |||
30 | /* | ||
31 | * Allocate and free page tables. | ||
32 | */ | ||
33 | |||
34 | extern pgd_t *pgd_alloc(struct mm_struct *); | ||
35 | extern void pgd_free(struct mm_struct *mm, pgd_t *); | ||
36 | |||
37 | extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long); | ||
38 | |||
39 | extern pgtable_t pte_alloc_one(struct mm_struct *, unsigned long); | ||
40 | |||
41 | static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) | ||
42 | { | ||
43 | free_page((unsigned long)pte); | ||
44 | } | ||
45 | |||
46 | static inline void pte_free(struct mm_struct *mm, pgtable_t pte) | ||
47 | { | ||
48 | pgtable_page_dtor(pte); | ||
49 | __free_page(pte); | ||
50 | } | ||
51 | |||
52 | #define __pte_free_tlb(tlb,pte) \ | ||
53 | do { \ | ||
54 | pgtable_page_dtor(pte); \ | ||
55 | tlb_remove_page((tlb),(pte)); \ | ||
56 | } while (0) | ||
57 | |||
58 | /* | ||
59 | * allocating and freeing a pmd is trivial: the 1-entry pmd is | ||
60 | * inside the pgd, so has no extra memory associated with it. | ||
61 | * (In the PAE case we free the pmds as part of the pgd.) | ||
62 | */ | ||
63 | #define pmd_alloc_one(mm, addr) ({ BUG(); ((pmd_t *) 2); }) | ||
64 | #define pmd_free(mm, x) do { } while (0) | ||
65 | #define __pmd_free_tlb(tlb,x) do { } while (0) | ||
66 | |||
67 | #endif /* CONFIG_MMU */ | ||
68 | |||
69 | #endif /* _ASM_PGALLOC_H */ | ||