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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/mm/tlb.h>
  38. #include <arch/interrupt.h>
  39. #include <interrupt.h>
  40. #include <arch/asm.h>
  41. #include <arch/register.h>
  42. #include <debug.h>
  43. #include <symtab.h>
  44. #include <print.h>
  45.  
  46. void dump_istate(istate_t *istate)
  47. {
  48.     printf("TSTATE=%#" PRIx64 "\n", istate->tstate);
  49.     printf("TPC=%#" PRIx64 " (%s)\n", istate->tpc, get_symtab_entry(istate->tpc));
  50.     printf("TNPC=%#" PRIx64 " (%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", __func__);
  57.     dump_istate(istate);
  58.     panic("%s\n", __func__);
  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", __func__);
  65.     dump_istate(istate);
  66.     panic("%s\n", __func__);
  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", __func__);
  73.     dump_istate(istate);
  74.     panic("%s\n", __func__);
  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", __func__);
  81.     dump_istate(istate);
  82.     panic("%s\n", __func__);
  83. }
  84.  
  85. /** Handle unimplemented_LDD. (0x12) */
  86. void unimplemented_LDD(int n, istate_t *istate)
  87. {
  88.     fault_if_from_uspace(istate, "%s\n", __func__);
  89.     dump_istate(istate);
  90.     panic("%s\n", __func__);
  91. }
  92.  
  93. /** Handle unimplemented_STD. (0x13) */
  94. void unimplemented_STD(int n, istate_t *istate)
  95. {
  96.     fault_if_from_uspace(istate, "%s\n", __func__);
  97.     dump_istate(istate);
  98.     panic("%s\n", __func__);
  99. }
  100.  
  101. /** Handle fp_disabled. (0x20) */
  102. void fp_disabled(int n, istate_t *istate)
  103. {
  104.     fprs_reg_t fprs;
  105.    
  106.     fprs.value = fprs_read();
  107.     if (!fprs.fef) {
  108.         fprs.fef = true;
  109.         fprs_write(fprs.value);
  110.         return;
  111.     }
  112.  
  113. #ifdef CONFIG_FPU_LAZY
  114.     scheduler_fpu_lazy_request();
  115. #else
  116.     fault_if_from_uspace(istate, "%s\n", __func__);
  117.     dump_istate(istate);
  118.     panic("%s\n", __func__);
  119. #endif
  120. }
  121.  
  122. /** Handle fp_exception_ieee_754. (0x21) */
  123. void fp_exception_ieee_754(int n, istate_t *istate)
  124. {
  125.     fault_if_from_uspace(istate, "%s\n", __func__);
  126.     dump_istate(istate);
  127.     panic("%s\n", __func__);
  128. }
  129.  
  130. /** Handle fp_exception_other. (0x22) */
  131. void fp_exception_other(int n, istate_t *istate)
  132. {
  133.     fault_if_from_uspace(istate, "%s\n", __func__);
  134.     dump_istate(istate);
  135.     panic("%s\n", __func__);
  136. }
  137.  
  138. /** Handle tag_overflow. (0x23) */
  139. void tag_overflow(int n, istate_t *istate)
  140. {
  141.     fault_if_from_uspace(istate, "%s\n", __func__);
  142.     dump_istate(istate);
  143.     panic("%s\n", __func__);
  144. }
  145.  
  146. /** Handle division_by_zero. (0x28) */
  147. void division_by_zero(int n, istate_t *istate)
  148. {
  149.     fault_if_from_uspace(istate, "%s\n", __func__);
  150.     dump_istate(istate);
  151.     panic("%s\n", __func__);
  152. }
  153.  
  154. /** Handle data_access_exception. (0x30) */
  155. void data_access_exception(int n, istate_t *istate)
  156. {
  157.     fault_if_from_uspace(istate, "%s\n", __func__);
  158.     dump_istate(istate);
  159.     dump_sfsr_and_sfar();
  160.     panic("%s\n", __func__);
  161. }
  162.  
  163. /** Handle data_access_error. (0x32) */
  164. void data_access_error(int n, istate_t *istate)
  165. {
  166.     fault_if_from_uspace(istate, "%s\n", __func__);
  167.     dump_istate(istate);
  168.     panic("%s\n", __func__);
  169. }
  170.  
  171. /** Handle mem_address_not_aligned. (0x34) */
  172. void mem_address_not_aligned(int n, istate_t *istate)
  173. {
  174.     fault_if_from_uspace(istate, "%s\n", __func__);
  175.     dump_istate(istate);
  176.     panic("%s\n", __func__);
  177. }
  178.  
  179. /** Handle LDDF_mem_address_not_aligned. (0x35) */
  180. void LDDF_mem_address_not_aligned(int n, istate_t *istate)
  181. {
  182.     fault_if_from_uspace(istate, "%s\n", __func__);
  183.     dump_istate(istate);
  184.     panic("%s\n", __func__);
  185. }
  186.  
  187. /** Handle STDF_mem_address_not_aligned. (0x36) */
  188. void STDF_mem_address_not_aligned(int n, istate_t *istate)
  189. {
  190.     fault_if_from_uspace(istate, "%s\n", __func__);
  191.     dump_istate(istate);
  192.     panic("%s\n", __func__);
  193. }
  194.  
  195. /** Handle privileged_action. (0x37) */
  196. void privileged_action(int n, istate_t *istate)
  197. {
  198.     fault_if_from_uspace(istate, "%s\n", __func__);
  199.     dump_istate(istate);
  200.     panic("%s\n", __func__);
  201. }
  202.  
  203. /** Handle LDQF_mem_address_not_aligned. (0x38) */
  204. void LDQF_mem_address_not_aligned(int n, istate_t *istate)
  205. {
  206.     fault_if_from_uspace(istate, "%s\n", __func__);
  207.     dump_istate(istate);
  208.     panic("%s\n", __func__);
  209. }
  210.  
  211. /** Handle STQF_mem_address_not_aligned. (0x39) */
  212. void STQF_mem_address_not_aligned(int n, istate_t *istate)
  213. {
  214.     fault_if_from_uspace(istate, "%s\n", __func__);
  215.     dump_istate(istate);
  216.     panic("%s\n", __func__);
  217. }
  218.  
  219. /** @}
  220.  */
  221.