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  1. /*
  2.  * Copyright (c) 2005 Martin Decky
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. #ifndef KERN_ppc64_CONTEXT_OFFSET_H_
  30. #define KERN_ppc64_CONTEXT_OFFSET_H_
  31.  
  32. #define OFFSET_SP    0x0
  33. #define OFFSET_PC    0x8
  34. #define OFFSET_R2    0x10
  35. #define OFFSET_R13   0x18
  36. #define OFFSET_R14   0x20
  37. #define OFFSET_R15   0x28
  38. #define OFFSET_R16   0x30
  39. #define OFFSET_R17   0x38
  40. #define OFFSET_R18   0x40
  41. #define OFFSET_R19   0x48
  42. #define OFFSET_R20   0x50
  43. #define OFFSET_R21   0x58
  44. #define OFFSET_R22   0x60
  45. #define OFFSET_R23   0x68
  46. #define OFFSET_R24   0x70
  47. #define OFFSET_R25   0x78
  48. #define OFFSET_R26   0x80
  49. #define OFFSET_R27   0x88
  50. #define OFFSET_R28   0x90
  51. #define OFFSET_R29   0x98
  52. #define OFFSET_R30   0xa0
  53. #define OFFSET_R31   0xa8
  54. #define OFFSET_CR    0xb0
  55.  
  56. #define OFFSET_FR14  0x0
  57. #define OFFSET_FR15  0x8
  58. #define OFFSET_FR16  0x10
  59. #define OFFSET_FR17  0x18
  60. #define OFFSET_FR18  0x20
  61. #define OFFSET_FR19  0x28
  62. #define OFFSET_FR20  0x30
  63. #define OFFSET_FR21  0x38
  64. #define OFFSET_FR22  0x40
  65. #define OFFSET_FR23  0x48
  66. #define OFFSET_FR24  0x50
  67. #define OFFSET_FR25  0x58
  68. #define OFFSET_FR26  0x60
  69. #define OFFSET_FR27  0x68
  70. #define OFFSET_FR28  0x70
  71. #define OFFSET_FR29  0x78
  72. #define OFFSET_FR30  0x80
  73. #define OFFSET_FR31  0x88
  74. #define OFFSET_FPSCR 0x90
  75.  
  76.  
  77. #ifdef __ASM__
  78. # include <arch/asm/regname.h>
  79.  
  80. # ctx: address of the structure with saved context
  81. .macro CONTEXT_SAVE_ARCH_CORE ctx:req
  82.     stw sp, OFFSET_SP(\ctx)
  83.     stw r2, OFFSET_R2(\ctx)
  84.     stw r13, OFFSET_R13(\ctx)
  85.     stw r14, OFFSET_R14(\ctx)
  86.     stw r15, OFFSET_R15(\ctx)
  87.     stw r16, OFFSET_R16(\ctx)
  88.     stw r17, OFFSET_R17(\ctx)
  89.     stw r18, OFFSET_R18(\ctx)
  90.     stw r19, OFFSET_R19(\ctx)
  91.     stw r20, OFFSET_R20(\ctx)
  92.     stw r21, OFFSET_R21(\ctx)
  93.     stw r22, OFFSET_R22(\ctx)
  94.     stw r23, OFFSET_R23(\ctx)
  95.     stw r24, OFFSET_R24(\ctx)
  96.     stw r25, OFFSET_R25(\ctx)
  97.     stw r26, OFFSET_R26(\ctx)
  98.     stw r27, OFFSET_R27(\ctx)
  99.     stw r28, OFFSET_R28(\ctx)
  100.     stw r29, OFFSET_R29(\ctx)
  101.     stw r30, OFFSET_R30(\ctx)
  102.     stw r31, OFFSET_R31(\ctx)
  103. .endm
  104.  
  105. # ctx: address of the structure with saved context
  106. .macro CONTEXT_RESTORE_ARCH_CORE ctx:req
  107.     lwz sp, OFFSET_SP(\ctx)
  108.     lwz r2, OFFSET_R2(\ctx)
  109.     lwz r13, OFFSET_R13(\ctx)
  110.     lwz r14, OFFSET_R14(\ctx)
  111.     lwz r15, OFFSET_R15(\ctx)
  112.     lwz r16, OFFSET_R16(\ctx)
  113.     lwz r17, OFFSET_R17(\ctx)
  114.     lwz r18, OFFSET_R18(\ctx)
  115.     lwz r19, OFFSET_R19(\ctx)
  116.     lwz r20, OFFSET_R20(\ctx)
  117.     lwz r21, OFFSET_R21(\ctx)
  118.     lwz r22, OFFSET_R22(\ctx)
  119.     lwz r23, OFFSET_R23(\ctx)
  120.     lwz r24, OFFSET_R24(\ctx)
  121.     lwz r25, OFFSET_R25(\ctx)
  122.     lwz r26, OFFSET_R26(\ctx)
  123.     lwz r27, OFFSET_R27(\ctx)
  124.     lwz r28, OFFSET_R28(\ctx)
  125.     lwz r29, OFFSET_R29(\ctx)
  126.     lwz r30, OFFSET_R30(\ctx)
  127.     lwz r31, OFFSET_R31(\ctx)
  128. .endm
  129.  
  130. #endif /* __ASM__ */
  131.  
  132. #endif
  133.