dart.h 1.5 KB

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  1. /* SPDX-License-Identifier: GPL-2.0-or-later */
  2. /*
  3. * Copyright (C) 2004 Olof Johansson <[email protected]>, IBM Corporation
  4. */
  5. #ifndef _POWERPC_SYSDEV_DART_H
  6. #define _POWERPC_SYSDEV_DART_H
  7. /* Offset from base to control register */
  8. #define DART_CNTL 0
  9. /* Offset from base to exception register */
  10. #define DART_EXCP_U3 0x10
  11. /* Offset from base to TLB tag registers */
  12. #define DART_TAGS_U3 0x1000
  13. /* U4 registers */
  14. #define DART_BASE_U4 0x10
  15. #define DART_SIZE_U4 0x20
  16. #define DART_EXCP_U4 0x30
  17. #define DART_TAGS_U4 0x1000
  18. /* Control Register fields */
  19. /* U3 registers */
  20. #define DART_CNTL_U3_BASE_MASK 0xfffff
  21. #define DART_CNTL_U3_BASE_SHIFT 12
  22. #define DART_CNTL_U3_FLUSHTLB 0x400
  23. #define DART_CNTL_U3_ENABLE 0x200
  24. #define DART_CNTL_U3_SIZE_MASK 0x1ff
  25. #define DART_CNTL_U3_SIZE_SHIFT 0
  26. /* U4 registers */
  27. #define DART_BASE_U4_BASE_MASK 0xffffff
  28. #define DART_BASE_U4_BASE_SHIFT 0
  29. #define DART_CNTL_U4_ENABLE 0x80000000
  30. #define DART_CNTL_U4_IONE 0x40000000
  31. #define DART_CNTL_U4_FLUSHTLB 0x20000000
  32. #define DART_CNTL_U4_IDLE 0x10000000
  33. #define DART_CNTL_U4_PAR_EN 0x08000000
  34. #define DART_CNTL_U4_IONE_MASK 0x07ffffff
  35. #define DART_SIZE_U4_SIZE_MASK 0x1fff
  36. #define DART_SIZE_U4_SIZE_SHIFT 0
  37. #define DART_REG(r) (dart + ((r) >> 2))
  38. #define DART_IN(r) (in_be32(DART_REG(r)))
  39. #define DART_OUT(r,v) (out_be32(DART_REG(r), (v)))
  40. /* size of table in pages */
  41. /* DART table fields */
  42. #define DARTMAP_VALID 0x80000000
  43. #define DARTMAP_RPNMASK 0x00ffffff
  44. #define DART_PAGE_SHIFT 12
  45. #define DART_PAGE_SIZE (1 << DART_PAGE_SHIFT)
  46. #endif /* _POWERPC_SYSDEV_DART_H */