cache.h 1.2 KB

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  1. /* $Id: cache.h,v 1.6 2004/03/11 18:08:05 lethal Exp $
  2. *
  3. * include/asm-sh/cache.h
  4. *
  5. * Copyright 1999 (C) Niibe Yutaka
  6. * Copyright 2002, 2003 (C) Paul Mundt
  7. */
  8. #ifndef __ASM_SH_CACHE_H
  9. #define __ASM_SH_CACHE_H
  10. #ifdef __KERNEL__
  11. #include <linux/init.h>
  12. #include <cpu/cache.h>
  13. #define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
  14. #define __read_mostly __attribute__((__section__(".data..read_mostly")))
  15. #ifndef __ASSEMBLY__
  16. struct cache_info {
  17. unsigned int ways; /* Number of cache ways */
  18. unsigned int sets; /* Number of cache sets */
  19. unsigned int linesz; /* Cache line size (bytes) */
  20. unsigned int way_size; /* sets * line size */
  21. /*
  22. * way_incr is the address offset for accessing the next way
  23. * in memory mapped cache array ops.
  24. */
  25. unsigned int way_incr;
  26. unsigned int entry_shift;
  27. unsigned int entry_mask;
  28. /*
  29. * Compute a mask which selects the address bits which overlap between
  30. * 1. those used to select the cache set during indexing
  31. * 2. those in the physical page number.
  32. */
  33. unsigned int alias_mask;
  34. unsigned int n_aliases; /* Number of aliases */
  35. unsigned long flags;
  36. };
  37. #endif /* __ASSEMBLY__ */
  38. #endif /* __KERNEL__ */
  39. #endif /* __ASM_SH_CACHE_H */