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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. #include <arch/stack.h>
  39. #include <arch/types.h>
  40. #include <align.h>
  41.  
  42. #define SP_DELTA    STACK_WINDOW_SAVE_AREA_SIZE
  43.  
  44. #ifdef context_set
  45. #undef context_set
  46. #endif
  47.  
  48. #define context_set(c, _pc, stack, size)                                \
  49.     (c)->pc = ((uintptr_t) _pc) - 8;                                \
  50.     (c)->sp = ((uintptr_t) stack) + ALIGN_UP((size), STACK_ALIGNMENT) - (STACK_BIAS + SP_DELTA);    \
  51.     (c)->fp = -STACK_BIAS
  52.    
  53.  
  54. /*
  55.  * Only save registers that must be preserved across
  56.  * function calls.
  57.  */
  58. struct context {
  59.     uintptr_t sp;       /* %o6 */
  60.     uintptr_t pc;       /* %o7 */
  61.     uint64_t i0;
  62.     uint64_t i1;
  63.     uint64_t i2;
  64.     uint64_t i3;
  65.     uint64_t i4;
  66.     uint64_t i5;
  67.     uintptr_t fp;       /* %i6 */
  68.     uintptr_t i7;
  69.     uint64_t l0;
  70.     uint64_t l1;
  71.     uint64_t l2;
  72.     uint64_t l3;
  73.     uint64_t l4;
  74.     uint64_t l5;
  75.     uint64_t l6;
  76.     uint64_t l7;
  77.     ipl_t ipl;
  78. };
  79.  
  80. #endif
  81.  
  82. /** @}
  83.  */
  84.