include/asm-m32r/cacheflush.h

   1 #ifndef _ASM_M32R_CACHEFLUSH_H
   2 #define _ASM_M32R_CACHEFLUSH_H
   3
   4 #include <linux/config.h>
   5 #include <linux/mm.h>
   6
   7 extern void _flush_cache_all(void);
   8 extern void _flush_cache_copyback_all(void);
   9
  10 #if defined(CONFIG_CHIP_M32700) || defined(CONFIG_CHIP_OPSP) || defined(CONFIG_CHIP_M32104)
  11 #define flush_cache_all()                       do { } while (0)
  12 #define flush_cache_mm(mm)                      do { } while (0)
  13 #define flush_cache_range(vma, start, end)      do { } while (0)
  14 #define flush_cache_page(vma, vmaddr, pfn)      do { } while (0)
  15 #define flush_dcache_page(page)                 do { } while (0)
  16 #define flush_dcache_mmap_lock(mapping)         do { } while (0)
  17 #define flush_dcache_mmap_unlock(mapping)       do { } while (0)
  18 #ifndef CONFIG_SMP
  19 #define flush_icache_range(start, end)          _flush_cache_copyback_all()
  20 #define flush_icache_page(vma,pg)               _flush_cache_copyback_all()
  21 #define flush_icache_user_range(vma,pg,adr,len) _flush_cache_copyback_all()
  22 #define flush_cache_sigtramp(addr)              _flush_cache_copyback_all()
  23 #else   /* CONFIG_SMP */
  24 extern void smp_flush_cache_all(void);
  25 #define flush_icache_range(start, end)          smp_flush_cache_all()
  26 #define flush_icache_page(vma,pg)               smp_flush_cache_all()
  27 #define flush_icache_user_range(vma,pg,adr,len) smp_flush_cache_all()
  28 #define flush_cache_sigtramp(addr)              _flush_cache_copyback_all()
  29 #endif  /* CONFIG_SMP */
  30 #elif defined(CONFIG_CHIP_M32102)
  31 #define flush_cache_all()                       do { } while (0)
  32 #define flush_cache_mm(mm)                      do { } while (0)
  33 #define flush_cache_range(vma, start, end)      do { } while (0)
  34 #define flush_cache_page(vma, vmaddr, pfn)      do { } while (0)
  35 #define flush_dcache_page(page)                 do { } while (0)
  36 #define flush_dcache_mmap_lock(mapping)         do { } while (0)
  37 #define flush_dcache_mmap_unlock(mapping)       do { } while (0)
  38 #define flush_icache_range(start, end)          _flush_cache_all()
  39 #define flush_icache_page(vma,pg)               _flush_cache_all()
  40 #define flush_icache_user_range(vma,pg,adr,len) _flush_cache_all()
  41 #define flush_cache_sigtramp(addr)              _flush_cache_all()
  42 #else
  43 #define flush_cache_all()                       do { } while (0)
  44 #define flush_cache_mm(mm)                      do { } while (0)
  45 #define flush_cache_range(vma, start, end)      do { } while (0)
  46 #define flush_cache_page(vma, vmaddr, pfn)      do { } while (0)
  47 #define flush_dcache_page(page)                 do { } while (0)
  48 #define flush_dcache_mmap_lock(mapping)         do { } while (0)
  49 #define flush_dcache_mmap_unlock(mapping)       do { } while (0)
  50 #define flush_icache_range(start, end)          do { } while (0)
  51 #define flush_icache_page(vma,pg)               do { } while (0)
  52 #define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
  53 #define flush_cache_sigtramp(addr)              do { } while (0)
  54 #endif  /* CONFIG_CHIP_* */
  55
  56 #define flush_cache_vmap(start, end)    do { } while (0)
  57 #define flush_cache_vunmap(start, end)  do { } while (0)
  58
  59 #define copy_to_user_page(vma, page, vaddr, dst, src, len)      \
  60 do {                                                            \
  61         memcpy(dst, src, len);                                  \
  62         flush_icache_user_range(vma, page, vaddr, len);         \
  63 } while (0)
  64 #define copy_from_user_page(vma, page, vaddr, dst, src, len)    \
  65         memcpy(dst, src, len)
  66
  67 #endif /* _ASM_M32R_CACHEFLUSH_H */
  68