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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 sparc64interrupt
  30.  * @{
  31.  */
  32. /** @file
  33.  *
  34.  */
  35.  
  36. #include <arch/trap/exception.h>
  37. #include <arch/interrupt.h>
  38. #include <interrupt.h>
  39. #include <arch/asm.h>
  40. #include <arch/register.h>
  41. #include <debug.h>
  42. #include <typedefs.h>
  43. #include <symtab.h>
  44. #include <print.h>
  45.  
  46. void dump_istate(istate_t *istate)
  47. {
  48.     printf("TSTATE=%#llx\n", istate->tstate);
  49.     printf("TPC=%#llx (%s)\n", istate->tpc, get_symtab_entry(istate->tpc));
  50.     printf("TNPC=%#llx (%s)\n", istate->tnpc, get_symtab_entry(istate->tnpc));
  51. }
  52.  
  53. /** Handle instruction_access_exception. (0x8) */
  54. void instruction_access_exception(int n, istate_t *istate)
  55. {
  56.     fault_if_from_uspace(istate, "%s\n", __FUNCTION__);
  57.     dump_istate(istate);
  58.     panic("%s\n", __FUNCTION__);
  59. }
  60.  
  61. /** Handle instruction_access_error. (0xa) */
  62. void instruction_access_error(int n, istate_t *istate)
  63. {
  64.     fault_if_from_uspace(istate, "%s\n", __FUNCTION__);
  65.     dump_istate(istate);
  66.     panic("%s\n", __FUNCTION__);
  67. }
  68.  
  69. /** Handle illegal_instruction. (0x10) */
  70. void illegal_instruction(int n, istate_t *istate)
  71. {
  72.     fault_if_from_uspace(istate, "%s\n", __FUNCTION__);
  73.     dump_istate(istate);
  74.     panic("%s\n", __FUNCTION__);
  75. }
  76.  
  77. /** Handle privileged_opcode. (0x11) */
  78. void privileged_opcode(int n, istate_t *istate)
  79. {
  80.     fault_if_from_uspace(istate, "%s\n", __FUNCTION__);
  81.     dump_istate(istate);
  82.     panic("%s\n", __FUNCTION__);
  83. }
  84.  
  85. /** Handle fp_disabled. (0x20) */
  86. void fp_disabled(int n, istate_t *istate)
  87. {
  88.     fprs_reg_t fprs;
  89.    
  90.     fprs.value = fprs_read();
  91.     if (!fprs.fef) {
  92.         fprs.fef = true;
  93.         fprs_write(fprs.value);
  94.         return;
  95.     }
  96.  
  97. #ifdef CONFIG_FPU_LAZY
  98.     scheduler_fpu_lazy_request();
  99. #else
  100.     fault_if_from_uspace(istate, "%s\n", __FUNCTION__);
  101.     dump_istate(istate);
  102.     panic("%s\n", __FUNCTION__);
  103. #endif
  104. }
  105.  
  106. /** Handle division_by_zero. (0x28) */
  107. void division_by_zero(int n, istate_t *istate)
  108. {
  109.     fault_if_from_uspace(istate, "%s\n", __FUNCTION__);
  110.     dump_istate(istate);
  111.     panic("%s\n", __FUNCTION__);
  112. }
  113.  
  114. /** Handle data_access_exception. (0x30) */
  115. void data_access_exception(int n, istate_t *istate)
  116. {
  117.     fault_if_from_uspace(istate, "%s\n", __FUNCTION__);
  118.     dump_istate(istate);
  119.     panic("%s\n", __FUNCTION__);
  120. }
  121.  
  122. /** Handle data_access_error. (0x32) */
  123. void data_access_error(int n, istate_t *istate)
  124. {
  125.     fault_if_from_uspace(istate, "%s\n", __FUNCTION__);
  126.     dump_istate(istate);
  127.     panic("%s\n", __FUNCTION__);
  128. }
  129.  
  130. /** Handle mem_address_not_aligned. (0x34) */
  131. void mem_address_not_aligned(int n, istate_t *istate)
  132. {
  133.     fault_if_from_uspace(istate, "%s\n", __FUNCTION__);
  134.     dump_istate(istate);
  135.     panic("%s\n", __FUNCTION__);
  136. }
  137.  
  138. /** Handle privileged_action. (0x37) */
  139. void privileged_action(int n, istate_t *istate)
  140. {
  141.     fault_if_from_uspace(istate, "%s\n", __FUNCTION__);
  142.     dump_istate(istate);
  143.     panic("%s\n", __FUNCTION__);
  144. }
  145.  
  146. /** @}
  147.  */
  148.