arch/m32r/include/asm/cachectl.h

   1 /*
   2  * cachectl.h -- defines for M32R cache control system calls
   3  *
   4  * Copyright (C) 2003 by Kazuhiro Inaoka
   5  */
   6 #ifndef __ASM_M32R_CACHECTL
   7 #define __ASM_M32R_CACHECTL
   8
   9 /*
  10  * Options for cacheflush system call
  11  *
  12  * cacheflush() is currently fluch_cache_all().
  13  */
  14 #define ICACHE  (1<<0)          /* flush instruction cache        */
  15 #define DCACHE  (1<<1)          /* writeback and flush data cache */
  16 #define BCACHE  (ICACHE|DCACHE) /* flush both caches              */
  17
  18 /*
  19  * Caching modes for the cachectl(2) call
  20  *
  21  * cachectl(2) is currently not supported and returns ENOSYS.
  22  */
  23 #define CACHEABLE       0       /* make pages cacheable */
  24 #define UNCACHEABLE     1       /* make pages uncacheable */
  25
  26 #endif  /* __ASM_M32R_CACHECTL */