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xor_64.h

xor_64.h 2.5 KB
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  1. /*
    2. 

  2.  * include/asm/xor.h
    3. 

  3.  *
    4. 

  4.  * High speed xor_block operation for RAID4/5 utilizing the
    5. 

  5.  * UltraSparc Visual Instruction Set and Niagara block-init
    6. 

  6.  * twin-load instructions.
    7. 

  7.  *
    8. 

  8.  * Copyright (C) 1997, 1999 Jakub Jelinek (jj@ultra.linux.cz)
    9. 

  9.  * Copyright (C) 2006 David S. Miller <davem@davemloft.net>
    10. 

  10.  *
    11. 

  11.  * This program is free software; you can redistribute it and/or modify
    12. 

  12.  * it under the terms of the GNU General Public License as published by
    13. 

  13.  * the Free Software Foundation; either version 2, or (at your option)
    14. 

  14.  * any later version.
    15. 

  15.  *
    16. 

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

  17.  * (for example /usr/src/linux/COPYING); if not, write to the Free
    18. 

  18.  * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
    19. 

  19.  */
    20. 

  20. 

  21. #include <asm/spitfire.h>
    22. 

  22. 

  23. void xor_vis_2(unsigned long, unsigned long *, unsigned long *);
    24. 

  24. void xor_vis_3(unsigned long, unsigned long *, unsigned long *,
    25. 

  25. 	       unsigned long *);
    26. 

  26. void xor_vis_4(unsigned long, unsigned long *, unsigned long *,
    27. 

  27. 	       unsigned long *, unsigned long *);
    28. 

  28. void xor_vis_5(unsigned long, unsigned long *, unsigned long *,
    29. 

  29. 	       unsigned long *, unsigned long *, unsigned long *);
    30. 

  30. 

  31. /* XXX Ugh, write cheetah versions... -DaveM */
    32. 

  32. 

  33. static struct xor_block_template xor_block_VIS = {
    34. 

  34.         .name	= "VIS",
    35. 

  35.         .do_2	= xor_vis_2,
    36. 

  36.         .do_3	= xor_vis_3,
    37. 

  37.         .do_4	= xor_vis_4,
    38. 

  38.         .do_5	= xor_vis_5,
    39. 

  39. };
    40. 

  40. 

  41. void xor_niagara_2(unsigned long, unsigned long *, unsigned long *);
    42. 

  42. void xor_niagara_3(unsigned long, unsigned long *, unsigned long *,
    43. 

  43. 		   unsigned long *);
    44. 

  44. void xor_niagara_4(unsigned long, unsigned long *, unsigned long *,
    45. 

  45. 		   unsigned long *, unsigned long *);
    46. 

  46. void xor_niagara_5(unsigned long, unsigned long *, unsigned long *,
    47. 

  47. 		   unsigned long *, unsigned long *, unsigned long *);
    48. 

  48. 

  49. static struct xor_block_template xor_block_niagara = {
    50. 

  50.         .name	= "Niagara",
    51. 

  51.         .do_2	= xor_niagara_2,
    52. 

  52.         .do_3	= xor_niagara_3,
    53. 

  53.         .do_4	= xor_niagara_4,
    54. 

  54.         .do_5	= xor_niagara_5,
    55. 

  55. };
    56. 

  56. 

  57. #undef XOR_TRY_TEMPLATES
    58. 

  58. #define XOR_TRY_TEMPLATES				\
    59. 

  59. 	do {						\
    60. 

  60. 		xor_speed(&xor_block_VIS);		\
    61. 

  61. 		xor_speed(&xor_block_niagara);		\
    62. 

  62. 	} while (0)
    63. 

  63. 

  64. /* For VIS for everything except Niagara.  */
    65. 

  65. #define XOR_SELECT_TEMPLATE(FASTEST) \
    66. 

  66. 	((tlb_type == hypervisor && \
    67. 

  67. 	  (sun4v_chip_type == SUN4V_CHIP_NIAGARA1 || \
    68. 

  68. 	   sun4v_chip_type == SUN4V_CHIP_NIAGARA2 || \
    69. 

  69. 	   sun4v_chip_type == SUN4V_CHIP_NIAGARA3 || \
    70. 

  70. 	   sun4v_chip_type == SUN4V_CHIP_NIAGARA4 || \
    71. 

  71. 	   sun4v_chip_type == SUN4V_CHIP_NIAGARA5)) ? \
    72. 

  72. 	 &xor_block_niagara : \
    73. 

  73. 	 &xor_block_VIS)
    74. 

  74.