Subversion Repositories HelenOS-historic

Rev

Rev 22 | Rev 31 | Go to most recent revision | Blame | Compare with Previous | Last modification | View Log | Download | RSS feed

  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/interrupt.h>
  30. #include <print.h>
  31. #include <panic.h>
  32. #include <arch/i8259.h>
  33. #include <func.h>
  34. #include <cpu.h>
  35. #include <arch/asm.h>
  36. #include <mm/tlb.h>
  37. #include <arch.h>
  38.  
  39. /*
  40.  * Interrupt and exception dispatching.
  41.  */
  42.  
  43. static iroutine ivt[IVT_ITEMS];
  44.  
  45. void (* disable_irqs_function)(__u16 irqmask) = NULL;
  46. void (* enable_irqs_function)(__u16 irqmask) = NULL;
  47. void (* eoi_function)(void) = NULL;
  48.  
  49. iroutine trap_register(__u8 n, iroutine f)
  50. {
  51.     iroutine old;
  52.    
  53.     old = ivt[n];
  54.     ivt[n] = f;
  55.    
  56.         return old;
  57. }
  58.  
  59. /*
  60.  * Called directly from the assembler code.
  61.  * CPU is cpu_priority_high().
  62.  */
  63. void trap_dispatcher(__u8 n, __u32 stack[])
  64. {
  65.     ivt[n](n,stack);
  66. }
  67.  
  68. void null_interrupt(__u8 n, __u32 stack[])
  69. {
  70.     printf("int %d: null_interrupt\n", n);
  71.     printf("stack: %L, %L, %L, %L\n", stack[0], stack[1], stack[2], stack[3]);
  72.     panic("unserviced interrupt\n");
  73. }
  74.  
  75. void gp_fault(__u8 n, __u32 stack[])
  76. {
  77.     printf("stack[0]=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]);
  78.     printf("%%eax=%L, %%ebx=%L, %%ecx=%L, %%edx=%L,\n%%edi=%L, %%esi=%L, %%ebp=%L, %%esp=%L\n", stack[-2], stack[-5], stack[-3], stack[-4], stack[-9], stack[-8], stack[-1], stack);
  79.     printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]);
  80.     panic("general protection fault\n");
  81. }
  82.  
  83. void page_fault(__u8 n, __u32 stack[])
  84. {
  85.     printf("page fault address: %X\n", cpu_read_cr2());
  86.     printf("stack[0]=%X, %%eip=%X, %%cs=%X, flags=%X\n", stack[0], stack[1], stack[2], stack[3]);
  87.     printf("%%eax=%L, %%ebx=%L, %%ecx=%L, %%edx=%L,\n%%edi=%L, %%esi=%L, %%ebp=%L, %%esp=%L\n", stack[-2], stack[-5], stack[-3], stack[-4], stack[-9], stack[-8], stack[-1], stack);
  88.     printf("stack: %X, %X, %X, %X\n", stack[4], stack[5], stack[6], stack[7]);
  89.     panic("page fault\n");
  90. }
  91.  
  92. void syscall(__u8 n, __u32 stack[])
  93. {
  94.     printf("cpu%d: syscall\n", CPU->id);
  95.     thread_usleep(1000000);
  96. }
  97.  
  98. void tlb_shootdown_ipi(__u8 n, __u32 stack[])
  99. {
  100.     trap_virtual_eoi();
  101.     tlb_shootdown_ipi_recv();
  102. }
  103.  
  104. void wakeup_ipi(__u8 n, __u32 stack[])
  105. {
  106.     trap_virtual_eoi();
  107. }
  108.  
  109. void trap_virtual_enable_irqs(__u16 irqmask)
  110. {
  111.     if (enable_irqs_function)
  112.         enable_irqs_function(irqmask);
  113.     else
  114.         panic(PANIC "no enable_irqs_function\n");
  115. }
  116.  
  117. void trap_virtual_disable_irqs(__u16 irqmask)
  118. {
  119.     if (disable_irqs_function)
  120.         disable_irqs_function(irqmask);
  121.     else
  122.         panic(PANIC "no disable_irqs_function\n");
  123. }
  124.  
  125. void trap_virtual_eoi(void)
  126. {
  127.     if (eoi_function)
  128.         eoi_function();
  129.     else
  130.         panic(PANIC "no eoi_function\n");
  131.  
  132. }
  133.