diff options
Diffstat (limited to 'include/asm-sh64/pgalloc.h')
-rw-r--r-- | include/asm-sh64/pgalloc.h | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/include/asm-sh64/pgalloc.h b/include/asm-sh64/pgalloc.h deleted file mode 100644 index 6eccab770a6d..000000000000 --- a/include/asm-sh64/pgalloc.h +++ /dev/null | |||
@@ -1,125 +0,0 @@ | |||
1 | #ifndef __ASM_SH64_PGALLOC_H | ||
2 | #define __ASM_SH64_PGALLOC_H | ||
3 | |||
4 | /* | ||
5 | * This file is subject to the terms and conditions of the GNU General Public | ||
6 | * License. See the file "COPYING" in the main directory of this archive | ||
7 | * for more details. | ||
8 | * | ||
9 | * include/asm-sh64/pgalloc.h | ||
10 | * | ||
11 | * Copyright (C) 2000, 2001 Paolo Alberelli | ||
12 | * Copyright (C) 2003, 2004 Paul Mundt | ||
13 | * Copyright (C) 2003, 2004 Richard Curnow | ||
14 | * | ||
15 | */ | ||
16 | |||
17 | #include <linux/mm.h> | ||
18 | #include <linux/quicklist.h> | ||
19 | #include <asm/page.h> | ||
20 | |||
21 | static inline void pgd_init(unsigned long page) | ||
22 | { | ||
23 | unsigned long *pgd = (unsigned long *)page; | ||
24 | extern pte_t empty_bad_pte_table[PTRS_PER_PTE]; | ||
25 | int i; | ||
26 | |||
27 | for (i = 0; i < USER_PTRS_PER_PGD; i++) | ||
28 | pgd[i] = (unsigned long)empty_bad_pte_table; | ||
29 | } | ||
30 | |||
31 | /* | ||
32 | * Allocate and free page tables. The xxx_kernel() versions are | ||
33 | * used to allocate a kernel page table - this turns on ASN bits | ||
34 | * if any. | ||
35 | */ | ||
36 | |||
37 | static inline pgd_t *get_pgd_slow(void) | ||
38 | { | ||
39 | unsigned int pgd_size = (USER_PTRS_PER_PGD * sizeof(pgd_t)); | ||
40 | pgd_t *ret = kmalloc(pgd_size, GFP_KERNEL); | ||
41 | return ret; | ||
42 | } | ||
43 | |||
44 | static inline pgd_t *pgd_alloc(struct mm_struct *mm) | ||
45 | { | ||
46 | return quicklist_alloc(0, GFP_KERNEL, NULL); | ||
47 | } | ||
48 | |||
49 | static inline void pgd_free(pgd_t *pgd) | ||
50 | { | ||
51 | quicklist_free(0, NULL, pgd); | ||
52 | } | ||
53 | |||
54 | static inline struct page *pte_alloc_one(struct mm_struct *mm, | ||
55 | unsigned long address) | ||
56 | { | ||
57 | void *pg = quicklist_alloc(0, GFP_KERNEL, NULL); | ||
58 | return pg ? virt_to_page(pg) : NULL; | ||
59 | } | ||
60 | |||
61 | static inline void pte_free_kernel(pte_t *pte) | ||
62 | { | ||
63 | quicklist_free(0, NULL, pte); | ||
64 | } | ||
65 | |||
66 | static inline void pte_free(struct page *pte) | ||
67 | { | ||
68 | quicklist_free_page(0, NULL, pte); | ||
69 | } | ||
70 | |||
71 | static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, | ||
72 | unsigned long address) | ||
73 | { | ||
74 | return quicklist_alloc(0, GFP_KERNEL, NULL); | ||
75 | } | ||
76 | |||
77 | #define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte)) | ||
78 | |||
79 | /* | ||
80 | * allocating and freeing a pmd is trivial: the 1-entry pmd is | ||
81 | * inside the pgd, so has no extra memory associated with it. | ||
82 | */ | ||
83 | |||
84 | #if defined(CONFIG_SH64_PGTABLE_2_LEVEL) | ||
85 | |||
86 | #define pmd_alloc_one(mm, addr) ({ BUG(); ((pmd_t *)2); }) | ||
87 | #define pmd_free(x) do { } while (0) | ||
88 | #define pgd_populate(mm, pmd, pte) BUG() | ||
89 | #define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte)) | ||
90 | #define __pmd_free_tlb(tlb,pmd) do { } while (0) | ||
91 | |||
92 | #elif defined(CONFIG_SH64_PGTABLE_3_LEVEL) | ||
93 | |||
94 | static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address) | ||
95 | { | ||
96 | return quicklist_alloc(0, GFP_KERNEL, NULL); | ||
97 | } | ||
98 | |||
99 | static inline void pmd_free(pmd_t *pmd) | ||
100 | { | ||
101 | quicklist_free(0, NULL, pmd); | ||
102 | } | ||
103 | |||
104 | #define pgd_populate(mm, pgd, pmd) pgd_set(pgd, pmd) | ||
105 | #define __pmd_free_tlb(tlb,pmd) pmd_free(pmd) | ||
106 | |||
107 | #else | ||
108 | #error "No defined page table size" | ||
109 | #endif | ||
110 | |||
111 | #define pmd_populate_kernel(mm, pmd, pte) \ | ||
112 | set_pmd(pmd, __pmd(_PAGE_TABLE + (unsigned long) (pte))) | ||
113 | |||
114 | static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, | ||
115 | struct page *pte) | ||
116 | { | ||
117 | set_pmd(pmd, __pmd(_PAGE_TABLE + (unsigned long) page_address (pte))); | ||
118 | } | ||
119 | |||
120 | static inline void check_pgt_cache(void) | ||
121 | { | ||
122 | quicklist_trim(0, NULL, 25, 16); | ||
123 | } | ||
124 | |||
125 | #endif /* __ASM_SH64_PGALLOC_H */ | ||