cachectl.h 737 B

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  1. /*
  2. * This file is subject to the terms and conditions of the GNU General Public
  3. * License. See the file "COPYING" in the main directory of this archive
  4. * for more details.
  5. *
  6. * Copyright (C) 1994, 1995, 1996 by Ralf Baechle
  7. */
  8. #ifndef _ASM_CACHECTL
  9. #define _ASM_CACHECTL
  10. /*
  11. * Options for cacheflush system call
  12. */
  13. #define ICACHE (1<<0) /* flush instruction cache */
  14. #define DCACHE (1<<1) /* writeback and flush data cache */
  15. #define BCACHE (ICACHE|DCACHE) /* flush both caches */
  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. #endif /* _ASM_CACHECTL */