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  1. /*
  2.  * Copyright (C) 2003-2004 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 mips32
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #ifndef __mips32_CONTEXT_H__
  36. #define __mips32_CONTEXT_H__
  37.  
  38. #include <align.h>
  39. #include <arch/stack.h>
  40.  
  41. /*
  42.  * Put one item onto the stack to support get_stack_base() and align it up.
  43.  */
  44. #define SP_DELTA    (0 + ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT))
  45.  
  46.  
  47. #ifndef __ASM__
  48.  
  49. #ifndef __mips32_TYPES_H__
  50. # include <arch/types.h>
  51. #endif
  52.  
  53. /*
  54.  * Only save registers that must be preserved across
  55.  * function calls.
  56.  */
  57. struct context {
  58.     __address sp;
  59.     __address pc;
  60.    
  61.     __u32 s0;
  62.     __u32 s1;
  63.     __u32 s2;
  64.     __u32 s3;
  65.     __u32 s4;
  66.     __u32 s5;
  67.     __u32 s6;
  68.     __u32 s7;
  69.     __u32 s8;
  70.     __u32 gp;
  71.  
  72.     ipl_t ipl;
  73. };
  74.  
  75. #endif /* __ASM__ */
  76.  
  77. #endif
  78.  
  79.  /** @}
  80.  */
  81.  
  82.