byteorder.h 828 B

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  1. /*
  2. * linux/include/asm-arm/byteorder.h
  3. *
  4. * ARM Endian-ness. In little endian mode, the data bus is connected such
  5. * that byte accesses appear as:
  6. * 0 = d0...d7, 1 = d8...d15, 2 = d16...d23, 3 = d24...d31
  7. * and word accesses (data or instruction) appear as:
  8. * d0...d31
  9. *
  10. * When in big endian mode, byte accesses appear as:
  11. * 0 = d24...d31, 1 = d16...d23, 2 = d8...d15, 3 = d0...d7
  12. * and word accesses (data or instruction) appear as:
  13. * d0...d31
  14. */
  15. #ifndef __ASM_ARM_BYTEORDER_H
  16. #define __ASM_ARM_BYTEORDER_H
  17. #include <asm/types.h>
  18. #if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
  19. # define __BYTEORDER_HAS_U64__
  20. # define __SWAB_64_THRU_32__
  21. #endif
  22. #if defined(__ARMEB__) || defined(__AARCH64EB__)
  23. #include <linux/byteorder/big_endian.h>
  24. #else
  25. #include <linux/byteorder/little_endian.h>
  26. #endif
  27. #endif