cachectl.h 800 B

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  1. /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
  2. /*
  3. * This file is subject to the terms and conditions of the GNU General Public
  4. * License. See the file "COPYING" in the main directory of this archive
  5. * for more details.
  6. *
  7. * Copyright (C) 1994, 1995, 1996 by Ralf Baechle
  8. */
  9. #ifndef _ASM_CACHECTL
  10. #define _ASM_CACHECTL
  11. /*
  12. * Options for cacheflush system call
  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. * Caching modes for the cachectl(2) call
  19. *
  20. * cachectl(2) is currently not supported and returns ENOSYS.
  21. */
  22. #define CACHEABLE 0 /* make pages cacheable */
  23. #define UNCACHEABLE 1 /* make pages uncacheable */
  24. #endif /* _ASM_CACHECTL */