spaces.h 1.1 KB

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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) 1996, 99 Ralf Baechle
  7. * Copyright (C) 2000, 2002 Maciej W. Rozycki
  8. * Copyright (C) 1990, 1999 by Silicon Graphics, Inc.
  9. */
  10. #ifndef _ASM_MACH_IP27_SPACES_H
  11. #define _ASM_MACH_IP27_SPACES_H
  12. /*
  13. * IP27 uses the R10000's uncached attribute feature. Attribute 3 selects
  14. * uncached memory addressing.
  15. */
  16. #define CAC_BASE 0xa800000000000000
  17. #define HSPEC_BASE 0x9000000000000000
  18. #define IO_BASE 0x9200000000000000
  19. #define MSPEC_BASE 0x9400000000000000
  20. #define UNCAC_BASE 0x9600000000000000
  21. #define MAP_BASE 0xc000000000000000
  22. #define TO_PHYS(x) ( ((x) & TO_PHYS_MASK))
  23. #define TO_CAC(x) (CAC_BASE | ((x) & TO_PHYS_MASK))
  24. #define TO_UNCAC(x) (UNCAC_BASE | ((x) & TO_PHYS_MASK))
  25. #define TO_MSPEC(x) (MSPEC_BASE | ((x) & TO_PHYS_MASK))
  26. #define TO_HSPEC(x) (HSPEC_BASE | ((x) & TO_PHYS_MASK))
  27. #define PAGE_OFFSET CAC_BASE
  28. #define HIGHMEM_START (~0UL)
  29. #endif /* _ASM_MACH_IP27_SPACES_H */