LXR uboot/include/asm-sh/cache.h

   1#ifndef __ASM_SH_CACHE_H
   2#define __ASM_SH_CACHE_H
   3
   4#if defined(CONFIG_SH4) || defined(CONFIG_SH4A)
   5
   6int cache_control(unsigned int cmd);
   7
   8#define L1_CACHE_BYTES 32
   9struct __large_struct { unsigned long buf[100]; };
  10#define __m(x) (*(struct __large_struct *)(x))
  11
  12void dcache_wback_range(u32 start, u32 end)
  13{
  14        u32 v;
  15
  16        start &= ~(L1_CACHE_BYTES - 1);
  17        for (v = start; v < end; v += L1_CACHE_BYTES) {
  18                asm volatile ("ocbwb     %0" :  /* no output */
  19                              : "m" (__m(v)));
  20        }
  21}
  22
  23void dcache_invalid_range(u32 start, u32 end)
  24{
  25        u32 v;
  26
  27        start &= ~(L1_CACHE_BYTES - 1);
  28        for (v = start; v < end; v += L1_CACHE_BYTES) {
  29                asm volatile ("ocbi     %0" :   /* no output */
  30                              : "m" (__m(v)));
  31        }
  32}
  33#endif /* CONFIG_SH4 || CONFIG_SH4A */
  34
  35#endif  /* __ASM_SH_CACHE_H */
  36