cachectl.h 615 B

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  1. /*
  2. * Copyright (C) 1994, 1995, 1996 by Ralf Baechle
  3. *
  4. * SPDX-License-Identifier: GPL-2.0
  5. */
  6. #ifndef _ASM_CACHECTL
  7. #define _ASM_CACHECTL
  8. /*
  9. * Options for cacheflush system call
  10. */
  11. #define ICACHE (1<<0) /* flush instruction cache */
  12. #define DCACHE (1<<1) /* writeback and flush data cache */
  13. #define BCACHE (ICACHE|DCACHE) /* flush both caches */
  14. /*
  15. * Caching modes for the cachectl(2) call
  16. *
  17. * cachectl(2) is currently not supported and returns ENOSYS.
  18. */
  19. #define CACHEABLE 0 /* make pages cacheable */
  20. #define UNCACHEABLE 1 /* make pages uncacheable */
  21. #endif /* _ASM_CACHECTL */