arch/m32r/include/asm/cachectl.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * cachectl.h -- defines for M32R cache control system calls
   4  *
   5  * Copyright (C) 2003 by Kazuhiro Inaoka
   6  */
   7 #ifndef __ASM_M32R_CACHECTL
   8 #define __ASM_M32R_CACHECTL
   9
  10 /*
  11  * Options for cacheflush system call
  12  *
  13  * cacheflush() is currently fluch_cache_all().
  14  */
  15 #define ICACHE  (1<<0)          /* flush instruction cache        */
  16 #define DCACHE  (1<<1)          /* writeback and flush data cache */
  17 #define BCACHE  (ICACHE|DCACHE) /* flush both caches              */
  18
  19 /*
  20  * Caching modes for the cachectl(2) call
  21  *
  22  * cachectl(2) is currently not supported and returns ENOSYS.
  23  */
  24 #define CACHEABLE       0       /* make pages cacheable */
  25 #define UNCACHEABLE     1       /* make pages uncacheable */
  26
  27 #endif  /* __ASM_M32R_CACHECTL */