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Linux/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 
  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 extern void flush_dcache_page(struct page *page);
 18 
 19 #define PG_dcache_dirty         PG_arch_1
 20 
 21 #define flush_cache_dup_mm(mm)                  do {} while (0)
 22 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
 23 #define flush_dcache_mmap_lock(mapping)         do {} while (0)
 24 #define flush_dcache_mmap_unlock(mapping)       do {} while (0)
 25 #define flush_cache_vmap(start, end)            do {} while (0)
 26 #define flush_cache_vunmap(start, end)          do {} while (0)
 27 
 28 static inline void flush_icache_page(struct vm_area_struct *vma,
 29         struct page *page)
 30 {
 31         if (vma->vm_flags & VM_EXEC) {
 32                 void *v = page_address(page);
 33                 flush_icache_range((unsigned long) v,
 34                                 (unsigned long) v + PAGE_SIZE);
 35         }
 36 }
 37 
 38 #define copy_from_user_page(vma, page, vaddr, dst, src, len) \
 39         memcpy(dst, src, len)
 40 
 41 #define copy_to_user_page(vma, page, vaddr, dst, src, len)      \
 42         do {                                                    \
 43                 memcpy(dst, src, len);                          \
 44                 if ((vma->vm_flags & VM_EXEC))                  \
 45                         flush_cache_page(vma, vaddr, page_to_pfn(page));\
 46         } while (0)
 47 
 48 #endif /* _ASM_SCORE_CACHEFLUSH_H */
 49 

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