paca.c 4.8 KB

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  1. /*
  2. * c 2001 PPC 64 Team, IBM Corp
  3. *
  4. * This program is free software; you can redistribute it and/or
  5. * modify it under the terms of the GNU General Public License
  6. * as published by the Free Software Foundation; either version
  7. * 2 of the License, or (at your option) any later version.
  8. */
  9. #include <linux/config.h>
  10. #include <linux/types.h>
  11. #include <linux/threads.h>
  12. #include <linux/module.h>
  13. #include <asm/processor.h>
  14. #include <asm/ptrace.h>
  15. #include <asm/page.h>
  16. #include <asm/lppaca.h>
  17. #include <asm/iseries/it_lp_queue.h>
  18. #include <asm/iseries/it_lp_reg_save.h>
  19. #include <asm/paca.h>
  20. /* This symbol is provided by the linker - let it fill in the paca
  21. * field correctly */
  22. extern unsigned long __toc_start;
  23. /* The Paca is an array with one entry per processor. Each contains an
  24. * lppaca, which contains the information shared between the
  25. * hypervisor and Linux.
  26. * On systems with hardware multi-threading, there are two threads
  27. * per processor. The Paca array must contain an entry for each thread.
  28. * The VPD Areas will give a max logical processors = 2 * max physical
  29. * processors. The processor VPD array needs one entry per physical
  30. * processor (not thread).
  31. */
  32. #define PACA_INIT_COMMON(number, start, asrr, asrv) \
  33. .lock_token = 0x8000, \
  34. .paca_index = (number), /* Paca Index */ \
  35. .kernel_toc = (unsigned long)(&__toc_start) + 0x8000UL, \
  36. .stab_real = (asrr), /* Real pointer to segment table */ \
  37. .stab_addr = (asrv), /* Virt pointer to segment table */ \
  38. .cpu_start = (start), /* Processor start */ \
  39. .hw_cpu_id = 0xffff, \
  40. .lppaca = { \
  41. .desc = 0xd397d781, /* "LpPa" */ \
  42. .size = sizeof(struct lppaca), \
  43. .dyn_proc_status = 2, \
  44. .decr_val = 0x00ff0000, \
  45. .fpregs_in_use = 1, \
  46. .end_of_quantum = 0xfffffffffffffffful, \
  47. .slb_count = 64, \
  48. .vmxregs_in_use = 0, \
  49. }, \
  50. #ifdef CONFIG_PPC_ISERIES
  51. #define PACA_INIT_ISERIES(number) \
  52. .lppaca_ptr = &paca[number].lppaca, \
  53. .reg_save_ptr = &iseries_reg_save[number],
  54. #define PACA_INIT(number) \
  55. { \
  56. PACA_INIT_COMMON(number, 0, 0, 0) \
  57. PACA_INIT_ISERIES(number) \
  58. }
  59. #define BOOTCPU_PACA_INIT(number) \
  60. { \
  61. PACA_INIT_COMMON(number, 1, 0, (u64)&initial_stab) \
  62. PACA_INIT_ISERIES(number) \
  63. }
  64. #else
  65. #define PACA_INIT(number) \
  66. { \
  67. PACA_INIT_COMMON(number, 0, 0, 0) \
  68. }
  69. #define BOOTCPU_PACA_INIT(number) \
  70. { \
  71. PACA_INIT_COMMON(number, 1, STAB0_PHYS_ADDR, (u64)&initial_stab) \
  72. }
  73. #endif
  74. struct paca_struct paca[] = {
  75. BOOTCPU_PACA_INIT(0),
  76. #if NR_CPUS > 1
  77. PACA_INIT( 1), PACA_INIT( 2), PACA_INIT( 3),
  78. #if NR_CPUS > 4
  79. PACA_INIT( 4), PACA_INIT( 5), PACA_INIT( 6), PACA_INIT( 7),
  80. #if NR_CPUS > 8
  81. PACA_INIT( 8), PACA_INIT( 9), PACA_INIT( 10), PACA_INIT( 11),
  82. PACA_INIT( 12), PACA_INIT( 13), PACA_INIT( 14), PACA_INIT( 15),
  83. PACA_INIT( 16), PACA_INIT( 17), PACA_INIT( 18), PACA_INIT( 19),
  84. PACA_INIT( 20), PACA_INIT( 21), PACA_INIT( 22), PACA_INIT( 23),
  85. PACA_INIT( 24), PACA_INIT( 25), PACA_INIT( 26), PACA_INIT( 27),
  86. PACA_INIT( 28), PACA_INIT( 29), PACA_INIT( 30), PACA_INIT( 31),
  87. #if NR_CPUS > 32
  88. PACA_INIT( 32), PACA_INIT( 33), PACA_INIT( 34), PACA_INIT( 35),
  89. PACA_INIT( 36), PACA_INIT( 37), PACA_INIT( 38), PACA_INIT( 39),
  90. PACA_INIT( 40), PACA_INIT( 41), PACA_INIT( 42), PACA_INIT( 43),
  91. PACA_INIT( 44), PACA_INIT( 45), PACA_INIT( 46), PACA_INIT( 47),
  92. PACA_INIT( 48), PACA_INIT( 49), PACA_INIT( 50), PACA_INIT( 51),
  93. PACA_INIT( 52), PACA_INIT( 53), PACA_INIT( 54), PACA_INIT( 55),
  94. PACA_INIT( 56), PACA_INIT( 57), PACA_INIT( 58), PACA_INIT( 59),
  95. PACA_INIT( 60), PACA_INIT( 61), PACA_INIT( 62), PACA_INIT( 63),
  96. #if NR_CPUS > 64
  97. PACA_INIT( 64), PACA_INIT( 65), PACA_INIT( 66), PACA_INIT( 67),
  98. PACA_INIT( 68), PACA_INIT( 69), PACA_INIT( 70), PACA_INIT( 71),
  99. PACA_INIT( 72), PACA_INIT( 73), PACA_INIT( 74), PACA_INIT( 75),
  100. PACA_INIT( 76), PACA_INIT( 77), PACA_INIT( 78), PACA_INIT( 79),
  101. PACA_INIT( 80), PACA_INIT( 81), PACA_INIT( 82), PACA_INIT( 83),
  102. PACA_INIT( 84), PACA_INIT( 85), PACA_INIT( 86), PACA_INIT( 87),
  103. PACA_INIT( 88), PACA_INIT( 89), PACA_INIT( 90), PACA_INIT( 91),
  104. PACA_INIT( 92), PACA_INIT( 93), PACA_INIT( 94), PACA_INIT( 95),
  105. PACA_INIT( 96), PACA_INIT( 97), PACA_INIT( 98), PACA_INIT( 99),
  106. PACA_INIT(100), PACA_INIT(101), PACA_INIT(102), PACA_INIT(103),
  107. PACA_INIT(104), PACA_INIT(105), PACA_INIT(106), PACA_INIT(107),
  108. PACA_INIT(108), PACA_INIT(109), PACA_INIT(110), PACA_INIT(111),
  109. PACA_INIT(112), PACA_INIT(113), PACA_INIT(114), PACA_INIT(115),
  110. PACA_INIT(116), PACA_INIT(117), PACA_INIT(118), PACA_INIT(119),
  111. PACA_INIT(120), PACA_INIT(121), PACA_INIT(122), PACA_INIT(123),
  112. PACA_INIT(124), PACA_INIT(125), PACA_INIT(126), PACA_INIT(127),
  113. #endif
  114. #endif
  115. #endif
  116. #endif
  117. #endif
  118. };
  119. EXPORT_SYMBOL(paca);