/arch/ppc64/kernel/pacaData.c

https://bitbucket.org/evzijst/gittest · C · 224 lines · 195 code · 9 blank · 20 comment · 0 complexity · ac9b7c4615f683f20db6a280b51a5839 MD5 · raw file 

    

  1. /*
    2. 

  2.  * c 2001 PPC 64 Team, IBM Corp
    3. 

  3.  *
    4. 

  4.  *      This program is free software; you can redistribute it and/or
    5. 

  5.  *      modify it under the terms of the GNU General Public License
    6. 

  6.  *      as published by the Free Software Foundation; either version
    7. 

  7.  *      2 of the License, or (at your option) any later version.
    8. 

  8.  */
    9. 

  9. 

  10. #include <linux/config.h>
    11. 

  11. #include <linux/types.h>
    12. 

  12. #include <linux/threads.h>
    13. 

  13. #include <linux/module.h>
    14. 

  14. 

  15. #include <asm/processor.h>
    16. 

  16. #include <asm/ptrace.h>
    17. 

  17. #include <asm/page.h>
    18. 

  18. 

  19. #include <asm/lppaca.h>
    20. 

  20. #include <asm/iSeries/ItLpQueue.h>
    21. 

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

  22. 

  23. static union {
    24. 

  24. 	struct systemcfg	data;
    25. 

  25. 	u8			page[PAGE_SIZE];
    26. 

  26. } systemcfg_store __page_aligned;
    27. 

  27. struct systemcfg *systemcfg = &systemcfg_store.data;
    28. 

  28. EXPORT_SYMBOL(systemcfg);
    29. 

  29. 

  30. 

  31. /* This symbol is provided by the linker - let it fill in the paca
    32. 

  32.  * field correctly */
    33. 

  33. extern unsigned long __toc_start;
    34. 

  34. 

  35. /* The Paca is an array with one entry per processor.  Each contains an 
    36. 

  36.  * lppaca, which contains the information shared between the
    37. 

  37.  * hypervisor and Linux.  Each also contains an ItLpRegSave area which
    38. 

  38.  * is used by the hypervisor to save registers.
    39. 

  39.  * On systems with hardware multi-threading, there are two threads
    40. 

  40.  * per processor.  The Paca array must contain an entry for each thread.
    41. 

  41.  * The VPD Areas will give a max logical processors = 2 * max physical
    42. 

  42.  * processors.  The processor VPD array needs one entry per physical
    43. 

  43.  * processor (not thread).
    44. 

  44.  */
    45. 

  45. #ifdef CONFIG_PPC_ISERIES
    46. 

  46. #define EXTRA_INITS(number, lpq)					    \
    47. 

  47. 	.lppaca_ptr = &paca[number].lppaca,				    \
    48. 

  48. 	.lpqueue_ptr = (lpq),		/* &xItLpQueue, */		    \
    49. 

  49. 	.reg_save_ptr = &paca[number].reg_save,				    \
    50. 

  50. 	.reg_save = {							    \
    51. 

  51. 		.xDesc = 0xd397d9e2,	/* "LpRS" */			    \
    52. 

  52. 		.xSize = sizeof(struct ItLpRegSave)			    \
    53. 

  53. 	},
    54. 

  54. #else
    55. 

  55. #define EXTRA_INITS(number, lpq)
    56. 

  56. #endif
    57. 

  57. 

  58. #define PACAINITDATA(number,start,lpq,asrr,asrv)			    \
    59. 

  59. {									    \
    60. 

  60. 	.lock_token = 0x8000,						    \
    61. 

  61. 	.paca_index = (number),		/* Paca Index */		    \
    62. 

  62. 	.default_decr = 0x00ff0000,	/* Initial Decr */		    \
    63. 

  63. 	.kernel_toc = (unsigned long)(&__toc_start) + 0x8000UL,		    \
    64. 

  64. 	.stab_real = (asrr), 		/* Real pointer to segment table */ \
    65. 

  65. 	.stab_addr = (asrv),		/* Virt pointer to segment table */ \
    66. 

  66. 	.cpu_start = (start),		/* Processor start */		    \
    67. 

  67. 	.hw_cpu_id = 0xffff,						    \
    68. 

  68. 	.lppaca = {							    \
    69. 

  69. 		.desc = 0xd397d781,	/* "LpPa" */			    \
    70. 

  70. 		.size = sizeof(struct lppaca),				    \
    71. 

  71. 		.dyn_proc_status = 2,					    \
    72. 

  72. 		.decr_val = 0x00ff0000,					    \
    73. 

  73. 		.fpregs_in_use = 1,					    \
    74. 

  74. 		.end_of_quantum = 0xfffffffffffffffful,			    \
    75. 

  75. 		.slb_count = 64,					    \
    76. 

  76. 	},								    \
    77. 

  77. 	EXTRA_INITS((number), (lpq))					    \
    78. 

  78. }
    79. 

  79. 

  80. struct paca_struct paca[] = {
    81. 

  81. #ifdef CONFIG_PPC_ISERIES
    82. 

  82. 	PACAINITDATA( 0, 1, &xItLpQueue, 0, STAB0_VIRT_ADDR),
    83. 

  83. #else
    84. 

  84. 	PACAINITDATA( 0, 1, NULL, STAB0_PHYS_ADDR, STAB0_VIRT_ADDR),
    85. 

  85. #endif
    86. 

  86. #if NR_CPUS > 1
    87. 

  87. 	PACAINITDATA( 1, 0, NULL, 0, 0),
    88. 

  88. 	PACAINITDATA( 2, 0, NULL, 0, 0),
    89. 

  89. 	PACAINITDATA( 3, 0, NULL, 0, 0),
    90. 

  90. #if NR_CPUS > 4
    91. 

  91. 	PACAINITDATA( 4, 0, NULL, 0, 0),
    92. 

  92. 	PACAINITDATA( 5, 0, NULL, 0, 0),
    93. 

  93. 	PACAINITDATA( 6, 0, NULL, 0, 0),
    94. 

  94. 	PACAINITDATA( 7, 0, NULL, 0, 0),
    95. 

  95. #if NR_CPUS > 8
    96. 

  96. 	PACAINITDATA( 8, 0, NULL, 0, 0),
    97. 

  97. 	PACAINITDATA( 9, 0, NULL, 0, 0),
    98. 

  98. 	PACAINITDATA(10, 0, NULL, 0, 0),
    99. 

  99. 	PACAINITDATA(11, 0, NULL, 0, 0),
    100. 

  100. 	PACAINITDATA(12, 0, NULL, 0, 0),
    101. 

  101. 	PACAINITDATA(13, 0, NULL, 0, 0),
    102. 

  102. 	PACAINITDATA(14, 0, NULL, 0, 0),
    103. 

  103. 	PACAINITDATA(15, 0, NULL, 0, 0),
    104. 

  104. 	PACAINITDATA(16, 0, NULL, 0, 0),
    105. 

  105. 	PACAINITDATA(17, 0, NULL, 0, 0),
    106. 

  106. 	PACAINITDATA(18, 0, NULL, 0, 0),
    107. 

  107. 	PACAINITDATA(19, 0, NULL, 0, 0),
    108. 

  108. 	PACAINITDATA(20, 0, NULL, 0, 0),
    109. 

  109. 	PACAINITDATA(21, 0, NULL, 0, 0),
    110. 

  110. 	PACAINITDATA(22, 0, NULL, 0, 0),
    111. 

  111. 	PACAINITDATA(23, 0, NULL, 0, 0),
    112. 

  112. 	PACAINITDATA(24, 0, NULL, 0, 0),
    113. 

  113. 	PACAINITDATA(25, 0, NULL, 0, 0),
    114. 

  114. 	PACAINITDATA(26, 0, NULL, 0, 0),
    115. 

  115. 	PACAINITDATA(27, 0, NULL, 0, 0),
    116. 

  116. 	PACAINITDATA(28, 0, NULL, 0, 0),
    117. 

  117. 	PACAINITDATA(29, 0, NULL, 0, 0),
    118. 

  118. 	PACAINITDATA(30, 0, NULL, 0, 0),
    119. 

  119. 	PACAINITDATA(31, 0, NULL, 0, 0),
    120. 

  120. #if NR_CPUS > 32
    121. 

  121. 	PACAINITDATA(32, 0, NULL, 0, 0),
    122. 

  122. 	PACAINITDATA(33, 0, NULL, 0, 0),
    123. 

  123. 	PACAINITDATA(34, 0, NULL, 0, 0),
    124. 

  124. 	PACAINITDATA(35, 0, NULL, 0, 0),
    125. 

  125. 	PACAINITDATA(36, 0, NULL, 0, 0),
    126. 

  126. 	PACAINITDATA(37, 0, NULL, 0, 0),
    127. 

  127. 	PACAINITDATA(38, 0, NULL, 0, 0),
    128. 

  128. 	PACAINITDATA(39, 0, NULL, 0, 0),
    129. 

  129. 	PACAINITDATA(40, 0, NULL, 0, 0),
    130. 

  130. 	PACAINITDATA(41, 0, NULL, 0, 0),
    131. 

  131. 	PACAINITDATA(42, 0, NULL, 0, 0),
    132. 

  132. 	PACAINITDATA(43, 0, NULL, 0, 0),
    133. 

  133. 	PACAINITDATA(44, 0, NULL, 0, 0),
    134. 

  134. 	PACAINITDATA(45, 0, NULL, 0, 0),
    135. 

  135. 	PACAINITDATA(46, 0, NULL, 0, 0),
    136. 

  136. 	PACAINITDATA(47, 0, NULL, 0, 0),
    137. 

  137. 	PACAINITDATA(48, 0, NULL, 0, 0),
    138. 

  138. 	PACAINITDATA(49, 0, NULL, 0, 0),
    139. 

  139. 	PACAINITDATA(50, 0, NULL, 0, 0),
    140. 

  140. 	PACAINITDATA(51, 0, NULL, 0, 0),
    141. 

  141. 	PACAINITDATA(52, 0, NULL, 0, 0),
    142. 

  142. 	PACAINITDATA(53, 0, NULL, 0, 0),
    143. 

  143. 	PACAINITDATA(54, 0, NULL, 0, 0),
    144. 

  144. 	PACAINITDATA(55, 0, NULL, 0, 0),
    145. 

  145. 	PACAINITDATA(56, 0, NULL, 0, 0),
    146. 

  146. 	PACAINITDATA(57, 0, NULL, 0, 0),
    147. 

  147. 	PACAINITDATA(58, 0, NULL, 0, 0),
    148. 

  148. 	PACAINITDATA(59, 0, NULL, 0, 0),
    149. 

  149. 	PACAINITDATA(60, 0, NULL, 0, 0),
    150. 

  150. 	PACAINITDATA(61, 0, NULL, 0, 0),
    151. 

  151. 	PACAINITDATA(62, 0, NULL, 0, 0),
    152. 

  152. 	PACAINITDATA(63, 0, NULL, 0, 0),
    153. 

  153. #if NR_CPUS > 64
    154. 

  154. 	PACAINITDATA(64, 0, NULL, 0, 0),
    155. 

  155. 	PACAINITDATA(65, 0, NULL, 0, 0),
    156. 

  156. 	PACAINITDATA(66, 0, NULL, 0, 0),
    157. 

  157. 	PACAINITDATA(67, 0, NULL, 0, 0),
    158. 

  158. 	PACAINITDATA(68, 0, NULL, 0, 0),
    159. 

  159. 	PACAINITDATA(69, 0, NULL, 0, 0),
    160. 

  160. 	PACAINITDATA(70, 0, NULL, 0, 0),
    161. 

  161. 	PACAINITDATA(71, 0, NULL, 0, 0),
    162. 

  162. 	PACAINITDATA(72, 0, NULL, 0, 0),
    163. 

  163. 	PACAINITDATA(73, 0, NULL, 0, 0),
    164. 

  164. 	PACAINITDATA(74, 0, NULL, 0, 0),
    165. 

  165. 	PACAINITDATA(75, 0, NULL, 0, 0),
    166. 

  166. 	PACAINITDATA(76, 0, NULL, 0, 0),
    167. 

  167. 	PACAINITDATA(77, 0, NULL, 0, 0),
    168. 

  168. 	PACAINITDATA(78, 0, NULL, 0, 0),
    169. 

  169. 	PACAINITDATA(79, 0, NULL, 0, 0),
    170. 

  170. 	PACAINITDATA(80, 0, NULL, 0, 0),
    171. 

  171. 	PACAINITDATA(81, 0, NULL, 0, 0),
    172. 

  172. 	PACAINITDATA(82, 0, NULL, 0, 0),
    173. 

  173. 	PACAINITDATA(83, 0, NULL, 0, 0),
    174. 

  174. 	PACAINITDATA(84, 0, NULL, 0, 0),
    175. 

  175. 	PACAINITDATA(85, 0, NULL, 0, 0),
    176. 

  176. 	PACAINITDATA(86, 0, NULL, 0, 0),
    177. 

  177. 	PACAINITDATA(87, 0, NULL, 0, 0),
    178. 

  178. 	PACAINITDATA(88, 0, NULL, 0, 0),
    179. 

  179. 	PACAINITDATA(89, 0, NULL, 0, 0),
    180. 

  180. 	PACAINITDATA(90, 0, NULL, 0, 0),
    181. 

  181. 	PACAINITDATA(91, 0, NULL, 0, 0),
    182. 

  182. 	PACAINITDATA(92, 0, NULL, 0, 0),
    183. 

  183. 	PACAINITDATA(93, 0, NULL, 0, 0),
    184. 

  184. 	PACAINITDATA(94, 0, NULL, 0, 0),
    185. 

  185. 	PACAINITDATA(95, 0, NULL, 0, 0),
    186. 

  186. 	PACAINITDATA(96, 0, NULL, 0, 0),
    187. 

  187. 	PACAINITDATA(97, 0, NULL, 0, 0),
    188. 

  188. 	PACAINITDATA(98, 0, NULL, 0, 0),
    189. 

  189. 	PACAINITDATA(99, 0, NULL, 0, 0),
    190. 

  190. 	PACAINITDATA(100, 0, NULL, 0, 0),
    191. 

  191. 	PACAINITDATA(101, 0, NULL, 0, 0),
    192. 

  192. 	PACAINITDATA(102, 0, NULL, 0, 0),
    193. 

  193. 	PACAINITDATA(103, 0, NULL, 0, 0),
    194. 

  194. 	PACAINITDATA(104, 0, NULL, 0, 0),
    195. 

  195. 	PACAINITDATA(105, 0, NULL, 0, 0),
    196. 

  196. 	PACAINITDATA(106, 0, NULL, 0, 0),
    197. 

  197. 	PACAINITDATA(107, 0, NULL, 0, 0),
    198. 

  198. 	PACAINITDATA(108, 0, NULL, 0, 0),
    199. 

  199. 	PACAINITDATA(109, 0, NULL, 0, 0),
    200. 

  200. 	PACAINITDATA(110, 0, NULL, 0, 0),
    201. 

  201. 	PACAINITDATA(111, 0, NULL, 0, 0),
    202. 

  202. 	PACAINITDATA(112, 0, NULL, 0, 0),
    203. 

  203. 	PACAINITDATA(113, 0, NULL, 0, 0),
    204. 

  204. 	PACAINITDATA(114, 0, NULL, 0, 0),
    205. 

  205. 	PACAINITDATA(115, 0, NULL, 0, 0),
    206. 

  206. 	PACAINITDATA(116, 0, NULL, 0, 0),
    207. 

  207. 	PACAINITDATA(117, 0, NULL, 0, 0),
    208. 

  208. 	PACAINITDATA(118, 0, NULL, 0, 0),
    209. 

  209. 	PACAINITDATA(119, 0, NULL, 0, 0),
    210. 

  210. 	PACAINITDATA(120, 0, NULL, 0, 0),
    211. 

  211. 	PACAINITDATA(121, 0, NULL, 0, 0),
    212. 

  212. 	PACAINITDATA(122, 0, NULL, 0, 0),
    213. 

  213. 	PACAINITDATA(123, 0, NULL, 0, 0),
    214. 

  214. 	PACAINITDATA(124, 0, NULL, 0, 0),
    215. 

  215. 	PACAINITDATA(125, 0, NULL, 0, 0),
    216. 

  216. 	PACAINITDATA(126, 0, NULL, 0, 0),
    217. 

  217. 	PACAINITDATA(127, 0, NULL, 0, 0),
    218. 

  218. #endif
    219. 

  219. #endif
    220. 

  220. #endif
    221. 

  221. #endif
    222. 

  222. #endif
    223. 

  223. };
    224. 

  224. EXPORT_SYMBOL(paca);
    225.