LXR linux-old/include/asm-mips/cachectl.h

   1/*
   2 * cachectl.h -- defines for MIPS cache control system calls
   3 *
   4 * Copyright (C) 1994, 1995, 1996 by Ralf Baechle
   5 */
   6#ifndef __ASM_MIPS_CACHECTL
   7#define __ASM_MIPS_CACHECTL
   8
   9/*
  10 * Options for cacheflush system call
  11 */
  12#define ICACHE  (1<<0)          /* flush instruction cache        */
  13#define DCACHE  (1<<1)          /* writeback and flush data cache */
  14#define BCACHE  (ICACHE|DCACHE) /* flush both caches              */
  15
  16/*
  17 * Caching modes for the cachectl(2) call
  18 *
  19 * cachectl(2) is currently not supported and returns ENOSYS.
  20 */
  21#define CACHEABLE       0       /* make pages cacheable */
  22#define UNCACHEABLE     1       /* make pages uncacheable */
  23
  24#endif  /* __ASM_MIPS_CACHECTL */
  25