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 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 */