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-rw-r--r--include/asm-generic/cacheflush.h74
1 files changed, 60 insertions, 14 deletions
diff --git a/include/asm-generic/cacheflush.h b/include/asm-generic/cacheflush.h
index 0dd47a6db2cf..a950a22c4890 100644
--- a/include/asm-generic/cacheflush.h
+++ b/include/asm-generic/cacheflush.h
@@ -5,24 +5,70 @@
5/* Keep includes the same across arches. */ 5/* Keep includes the same across arches. */
6#include <linux/mm.h> 6#include <linux/mm.h>
7 7
8#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
9
8/* 10/*
9 * The cache doesn't need to be flushed when TLB entries change when 11 * The cache doesn't need to be flushed when TLB entries change when
10 * the cache is mapped to physical memory, not virtual memory 12 * the cache is mapped to physical memory, not virtual memory
11 */ 13 */
12#define flush_cache_all() do { } while (0) 14static inline void flush_cache_all(void)
13#define flush_cache_mm(mm) do { } while (0) 15{
14#define flush_cache_dup_mm(mm) do { } while (0) 16}
15#define flush_cache_range(vma, start, end) do { } while (0) 17
16#define flush_cache_page(vma, vmaddr, pfn) do { } while (0) 18static inline void flush_cache_mm(struct mm_struct *mm)
17#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0 19{
18#define flush_dcache_page(page) do { } while (0) 20}
19#define flush_dcache_mmap_lock(mapping) do { } while (0) 21
20#define flush_dcache_mmap_unlock(mapping) do { } while (0) 22static inline void flush_cache_dup_mm(struct mm_struct *mm)
21#define flush_icache_range(start, end) do { } while (0) 23{
22#define flush_icache_page(vma,pg) do { } while (0) 24}
23#define flush_icache_user_range(vma,pg,adr,len) do { } while (0) 25
24#define flush_cache_vmap(start, end) do { } while (0) 26static inline void flush_cache_range(struct vm_area_struct *vma,
25#define flush_cache_vunmap(start, end) do { } while (0) 27 unsigned long start,
28 unsigned long end)
29{
30}
31
32static inline void flush_cache_page(struct vm_area_struct *vma,
33 unsigned long vmaddr,
34 unsigned long pfn)
35{
36}
37
38static inline void flush_dcache_page(struct page *page)
39{
40}
41
42static inline void flush_dcache_mmap_lock(struct address_space *mapping)
43{
44}
45
46static inline void flush_dcache_mmap_unlock(struct address_space *mapping)
47{
48}
49
50static inline void flush_icache_range(unsigned long start, unsigned long end)
51{
52}
53
54static inline void flush_icache_page(struct vm_area_struct *vma,
55 struct page *page)
56{
57}
58
59static inline void flush_icache_user_range(struct vm_area_struct *vma,
60 struct page *page,
61 unsigned long addr, int len)
62{
63}
64
65static inline void flush_cache_vmap(unsigned long start, unsigned long end)
66{
67}
68
69static inline void flush_cache_vunmap(unsigned long start, unsigned long end)
70{
71}
26 72
27#define copy_to_user_page(vma, page, vaddr, dst, src, len) \ 73#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
28 do { \ 74 do { \