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Diffstat (limited to 'include/asm-x86/cacheflush.h')
-rw-r--r-- | include/asm-x86/cacheflush.h | 118 |
1 files changed, 0 insertions, 118 deletions
diff --git a/include/asm-x86/cacheflush.h b/include/asm-x86/cacheflush.h deleted file mode 100644 index 68840ef1b35a..000000000000 --- a/include/asm-x86/cacheflush.h +++ /dev/null | |||
@@ -1,118 +0,0 @@ | |||
1 | #ifndef ASM_X86__CACHEFLUSH_H | ||
2 | #define ASM_X86__CACHEFLUSH_H | ||
3 | |||
4 | /* Keep includes the same across arches. */ | ||
5 | #include <linux/mm.h> | ||
6 | |||
7 | /* Caches aren't brain-dead on the intel. */ | ||
8 | #define flush_cache_all() do { } while (0) | ||
9 | #define flush_cache_mm(mm) do { } while (0) | ||
10 | #define flush_cache_dup_mm(mm) do { } while (0) | ||
11 | #define flush_cache_range(vma, start, end) do { } while (0) | ||
12 | #define flush_cache_page(vma, vmaddr, pfn) do { } while (0) | ||
13 | #define flush_dcache_page(page) do { } while (0) | ||
14 | #define flush_dcache_mmap_lock(mapping) do { } while (0) | ||
15 | #define flush_dcache_mmap_unlock(mapping) do { } while (0) | ||
16 | #define flush_icache_range(start, end) do { } while (0) | ||
17 | #define flush_icache_page(vma, pg) do { } while (0) | ||
18 | #define flush_icache_user_range(vma, pg, adr, len) do { } while (0) | ||
19 | #define flush_cache_vmap(start, end) do { } while (0) | ||
20 | #define flush_cache_vunmap(start, end) do { } while (0) | ||
21 | |||
22 | #define copy_to_user_page(vma, page, vaddr, dst, src, len) \ | ||
23 | memcpy((dst), (src), (len)) | ||
24 | #define copy_from_user_page(vma, page, vaddr, dst, src, len) \ | ||
25 | memcpy((dst), (src), (len)) | ||
26 | |||
27 | #define PG_non_WB PG_arch_1 | ||
28 | PAGEFLAG(NonWB, non_WB) | ||
29 | |||
30 | /* | ||
31 | * The set_memory_* API can be used to change various attributes of a virtual | ||
32 | * address range. The attributes include: | ||
33 | * Cachability : UnCached, WriteCombining, WriteBack | ||
34 | * Executability : eXeutable, NoteXecutable | ||
35 | * Read/Write : ReadOnly, ReadWrite | ||
36 | * Presence : NotPresent | ||
37 | * | ||
38 | * Within a catagory, the attributes are mutually exclusive. | ||
39 | * | ||
40 | * The implementation of this API will take care of various aspects that | ||
41 | * are associated with changing such attributes, such as: | ||
42 | * - Flushing TLBs | ||
43 | * - Flushing CPU caches | ||
44 | * - Making sure aliases of the memory behind the mapping don't violate | ||
45 | * coherency rules as defined by the CPU in the system. | ||
46 | * | ||
47 | * What this API does not do: | ||
48 | * - Provide exclusion between various callers - including callers that | ||
49 | * operation on other mappings of the same physical page | ||
50 | * - Restore default attributes when a page is freed | ||
51 | * - Guarantee that mappings other than the requested one are | ||
52 | * in any state, other than that these do not violate rules for | ||
53 | * the CPU you have. Do not depend on any effects on other mappings, | ||
54 | * CPUs other than the one you have may have more relaxed rules. | ||
55 | * The caller is required to take care of these. | ||
56 | */ | ||
57 | |||
58 | int _set_memory_uc(unsigned long addr, int numpages); | ||
59 | int _set_memory_wc(unsigned long addr, int numpages); | ||
60 | int _set_memory_wb(unsigned long addr, int numpages); | ||
61 | int set_memory_uc(unsigned long addr, int numpages); | ||
62 | int set_memory_wc(unsigned long addr, int numpages); | ||
63 | int set_memory_wb(unsigned long addr, int numpages); | ||
64 | int set_memory_x(unsigned long addr, int numpages); | ||
65 | int set_memory_nx(unsigned long addr, int numpages); | ||
66 | int set_memory_ro(unsigned long addr, int numpages); | ||
67 | int set_memory_rw(unsigned long addr, int numpages); | ||
68 | int set_memory_np(unsigned long addr, int numpages); | ||
69 | int set_memory_4k(unsigned long addr, int numpages); | ||
70 | |||
71 | int set_memory_array_uc(unsigned long *addr, int addrinarray); | ||
72 | int set_memory_array_wb(unsigned long *addr, int addrinarray); | ||
73 | |||
74 | /* | ||
75 | * For legacy compatibility with the old APIs, a few functions | ||
76 | * are provided that work on a "struct page". | ||
77 | * These functions operate ONLY on the 1:1 kernel mapping of the | ||
78 | * memory that the struct page represents, and internally just | ||
79 | * call the set_memory_* function. See the description of the | ||
80 | * set_memory_* function for more details on conventions. | ||
81 | * | ||
82 | * These APIs should be considered *deprecated* and are likely going to | ||
83 | * be removed in the future. | ||
84 | * The reason for this is the implicit operation on the 1:1 mapping only, | ||
85 | * making this not a generally useful API. | ||
86 | * | ||
87 | * Specifically, many users of the old APIs had a virtual address, | ||
88 | * called virt_to_page() or vmalloc_to_page() on that address to | ||
89 | * get a struct page* that the old API required. | ||
90 | * To convert these cases, use set_memory_*() on the original | ||
91 | * virtual address, do not use these functions. | ||
92 | */ | ||
93 | |||
94 | int set_pages_uc(struct page *page, int numpages); | ||
95 | int set_pages_wb(struct page *page, int numpages); | ||
96 | int set_pages_x(struct page *page, int numpages); | ||
97 | int set_pages_nx(struct page *page, int numpages); | ||
98 | int set_pages_ro(struct page *page, int numpages); | ||
99 | int set_pages_rw(struct page *page, int numpages); | ||
100 | |||
101 | |||
102 | void clflush_cache_range(void *addr, unsigned int size); | ||
103 | |||
104 | #ifdef CONFIG_DEBUG_RODATA | ||
105 | void mark_rodata_ro(void); | ||
106 | extern const int rodata_test_data; | ||
107 | #endif | ||
108 | |||
109 | #ifdef CONFIG_DEBUG_RODATA_TEST | ||
110 | int rodata_test(void); | ||
111 | #else | ||
112 | static inline int rodata_test(void) | ||
113 | { | ||
114 | return 0; | ||
115 | } | ||
116 | #endif | ||
117 | |||
118 | #endif /* ASM_X86__CACHEFLUSH_H */ | ||