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  1. /*
  2.  * Copyright (C) 2005 Jakub Jermar
  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. /** @addtogroup sparc64
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #ifndef KERN_sparc64_CONTEXT_H_
  36. #define KERN_sparc64_CONTEXT_H_
  37.  
  38. #ifndef KERN_sparc64_STACK_H_
  39. # include <arch/stack.h>
  40. #endif
  41.  
  42. #ifndef KERN_sparc64_TYPES_H_
  43. # include <arch/types.h>
  44. #endif
  45.  
  46. #ifndef KERN_ALIGN_H_
  47. # include <align.h>
  48. #endif
  49.  
  50. #define SP_DELTA    STACK_WINDOW_SAVE_AREA_SIZE
  51.  
  52. #ifdef context_set
  53. #undef context_set
  54. #endif
  55.  
  56. #define context_set(c, _pc, stack, size)                                \
  57.     (c)->pc = ((uintptr_t) _pc) - 8;                                \
  58.     (c)->sp = ((uintptr_t) stack) + ALIGN_UP((size), STACK_ALIGNMENT) - (STACK_BIAS + SP_DELTA);    \
  59.     (c)->fp = -STACK_BIAS;                                      \
  60.     (c)->cleanwin = 0
  61.    
  62.  
  63. /*
  64.  * Only save registers that must be preserved across
  65.  * function calls.
  66.  */
  67. struct context {
  68.     uintptr_t sp;       /* %o6 */
  69.     uintptr_t pc;       /* %o7 */
  70.     uint64_t i0;
  71.     uint64_t i1;
  72.     uint64_t i2;
  73.     uint64_t i3;
  74.     uint64_t i4;
  75.     uint64_t i5;
  76.     uintptr_t fp;       /* %i6 */
  77.     uintptr_t i7;
  78.     uint64_t l0;
  79.     uint64_t l1;
  80.     uint64_t l2;
  81.     uint64_t l3;
  82.     uint64_t l4;
  83.     uint64_t l5;
  84.     uint64_t l6;
  85.     uint64_t l7;
  86.     ipl_t ipl;
  87.     uint64_t cleanwin;
  88. };
  89.  
  90. #endif
  91.  
  92. /** @}
  93.  */
  94.