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xtensa-config.h

xtensa-config.h 2.0 KB
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  1. /* Xtensa configuration settings.
    2. 

  2.    Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
    3. 

  3.    Free Software Foundation, Inc.
    4. 

  4.    Contributed by Bob Wilson (bwilson@tensilica.com) at Tensilica.
    5. 

  5. 

  6.    The GNU C Library is free software; you can redistribute it and/or
    7. 

  7.    modify it under the terms of the GNU Lesser General Public
    8. 

  8.    License as published by the Free Software Foundation; either
    9. 

  9.    version 2.1 of the License, or (at your option) any later version.
    10. 

  10. 

  11.    The GNU C Library is distributed in the hope that it will be useful,
    12. 

  12.    but WITHOUT ANY WARRANTY; without even the implied warranty of
    13. 

  13.    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    14. 

  14.    Lesser General Public License for more details.
    15. 

  15. 

  16.    You should have received a copy of the GNU Lesser General Public
    17. 

  17.    License along with the GNU C Library; if not, write to the Free
    18. 

  18.    Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
    19. 

  19.    Boston, MA 02110-1301, USA.  */
    20. 

  20. 

  21. #ifndef XTENSA_CONFIG_H
    22. 

  22. #define XTENSA_CONFIG_H
    23. 

  23. 

  24. /* The macros defined here match those with the same names in the Xtensa
    25. 

  25.    compile-time HAL (Hardware Abstraction Layer).  Please refer to the
    26. 

  26.    Xtensa System Software Reference Manual for documentation of these
    27. 

  27.    macros.  */
    28. 

  28. 

  29. /* The following macros reflect the default expectations for Xtensa
    30. 

  30.    processor configurations that can run glibc.  If you want to try
    31. 

  31.    building glibc for an Xtensa configuration that is missing these
    32. 

  32.    options, you will at least need to change the values of these
    33. 

  33.    macros.  */
    34. 

  34. 

  35. #undef XCHAL_HAVE_NSA
    36. 

  36. #define XCHAL_HAVE_NSA			1
    37. 

  37. 

  38. #undef XCHAL_HAVE_LOOPS
    39. 

  39. #define XCHAL_HAVE_LOOPS		1
    40. 

  40. 

  41. /* Assume the maximum number of AR registers.  This currently only affects
    42. 

  42.    the __window_spill function, and it is always safe to flush extra.  */
    43. 

  43. 

  44. #undef XCHAL_NUM_AREGS
    45. 

  45. #define XCHAL_NUM_AREGS			64
    46. 

  46. 

  47. /* Set a default page size.  This is currently needed when bootstrapping
    48. 

  48.    the runtime linker.  See comments in dl-machine.h where this is used.  */
    49. 

  49. 

  50. #undef XCHAL_MMU_MIN_PTE_PAGE_SIZE
    51. 

  51. #define XCHAL_MMU_MIN_PTE_PAGE_SIZE	12
    52. 

  52. 

  53. #endif /* !XTENSA_CONFIG_H */
    54.