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_data_cache_page)(unsigned long addr);
  17
  18 extern void s7_flush_cache_all(void);
  19
  20 #define flush_cache_dup_mm(mm)                  do {} while (0)
  21 #define flush_dcache_page(page)                 do {} while (0)
  22 #define flush_dcache_mmap_lock(mapping)         do {} while (0)
  23 #define flush_dcache_mmap_unlock(mapping)       do {} while (0)
  24 #define flush_cache_vmap(start, end)            do {} while (0)
  25 #define flush_cache_vunmap(start, end)          do {} while (0)
  26
  27 static inline void flush_icache_page(struct vm_area_struct *vma,
  28         struct page *page)
  29 {
  30         if (vma->vm_flags & VM_EXEC) {
  31                 void *v = page_address(page);
  32                 flush_icache_range((unsigned long) v,
  33                                 (unsigned long) v + PAGE_SIZE);
  34         }
  35 }
  36
  37 #define copy_from_user_page(vma, page, vaddr, dst, src, len) \
  38         memcpy(dst, src, len)
  39
  40 #define copy_to_user_page(vma, page, vaddr, dst, src, len)      \
  41         do {                                                    \
  42                 memcpy(dst, src, len);                          \
  43                 if ((vma->vm_flags & VM_EXEC))                  \
  44                         flush_cache_page(vma, vaddr, page_to_pfn(page));\
  45         } while (0)
  46
  47 #endif /* _ASM_SCORE_CACHEFLUSH_H */