block: add helpers to run flush_dcache_page() against a bio and a request's pages
[linux-2.6.git] / arch / score / include / asm / cacheflush.h
1 #ifndef _ASM_SCORE_CACHEFLUSH_H
2 #define _ASM_SCORE_CACHEFLUSH_H
3
4 /* Keep includes the same across arches. */
5 #include <linux/mm.h>
6
7 extern void flush_cache_all(void);
8 extern void flush_cache_mm(struct mm_struct *mm);
9 extern void flush_cache_range(struct vm_area_struct *vma,
10                                 unsigned long start, unsigned long end);
11 extern void flush_cache_page(struct vm_area_struct *vma,
12                                 unsigned long page, unsigned long pfn);
13 extern void flush_cache_sigtramp(unsigned long addr);
14 extern void flush_icache_all(void);
15 extern void flush_icache_range(unsigned long start, unsigned long end);
16 extern void flush_dcache_range(unsigned long start, unsigned long end);
17
18 #define flush_cache_dup_mm(mm)                  do {} while (0)
19 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
20 #define flush_dcache_page(page)                 do {} while (0)
21 #define flush_dcache_mmap_lock(mapping)         do {} while (0)
22 #define flush_dcache_mmap_unlock(mapping)       do {} while (0)
23 #define flush_cache_vmap(start, end)            do {} while (0)
24 #define flush_cache_vunmap(start, end)          do {} while (0)
25
26 static inline void flush_icache_page(struct vm_area_struct *vma,
27         struct page *page)
28 {
29         if (vma->vm_flags & VM_EXEC) {
30                 void *v = page_address(page);
31                 flush_icache_range((unsigned long) v,
32                                 (unsigned long) v + PAGE_SIZE);
33         }
34 }
35
36 #define copy_from_user_page(vma, page, vaddr, dst, src, len) \
37         memcpy(dst, src, len)
38
39 #define copy_to_user_page(vma, page, vaddr, dst, src, len)      \
40         do {                                                    \
41                 memcpy(dst, src, len);                          \
42                 if ((vma->vm_flags & VM_EXEC))                  \
43                         flush_cache_page(vma, vaddr, page_to_pfn(page));\
44         } while (0)
45
46 #endif /* _ASM_SCORE_CACHEFLUSH_H */