block: add helpers to run flush_dcache_page() against a bio and a request's pages
[GitHub/MotorolaMobilityLLC/kernel-slsi.git] / arch / score / include / asm / cacheflush.h
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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
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7extern void flush_cache_all(void);
8extern void flush_cache_mm(struct mm_struct *mm);
9extern void flush_cache_range(struct vm_area_struct *vma,
6bc9a396 10 unsigned long start, unsigned long end);
0402c91a 11extern void flush_cache_page(struct vm_area_struct *vma,
6bc9a396 12 unsigned long page, unsigned long pfn);
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13extern void flush_cache_sigtramp(unsigned long addr);
14extern void flush_icache_all(void);
15extern void flush_icache_range(unsigned long start, unsigned long end);
16extern void flush_dcache_range(unsigned long start, unsigned long end);
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17
18#define flush_cache_dup_mm(mm) do {} while (0)
2d4dc890 19#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
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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
26static 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 */