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  1. /*
  2.  * Copyright (C) 2001-2004 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. #include <arch/mm/tlb.h>
  30. #include <arch/mm/asid.h>
  31. #include <mm/tlb.h>
  32. #include <arch/cp0.h>
  33. #include <panic.h>
  34. #include <arch.h>
  35.  
  36. #include <symtab.h>
  37.  
  38. void tlb_refill(void)
  39. {
  40.     panic("tlb_refill exception\n");
  41. }
  42.  
  43. void tlb_invalid(void)
  44. {
  45.     char *symbol = "";
  46.  
  47.     if (THREAD) {
  48.         char *s = get_symtab_entry(THREAD->saved_epc);
  49.         if (s)
  50.             symbol = s;
  51.     }
  52.     panic("%X: TLB exception at %X(%s)\n", cp0_badvaddr_read(),
  53.           THREAD ? THREAD->saved_epc : 0, symbol);
  54. }
  55.  
  56. void tlb_invalidate(int asid)
  57. {
  58.     pri_t pri;
  59.    
  60.     pri = cpu_priority_high();
  61.    
  62. //  asid_bitmap_reset();
  63.    
  64.     // TODO
  65.    
  66.     cpu_priority_restore(pri);
  67. }
  68.