lunaix-os/kernel/asm/x86/intr_routines.c

   1 #include <arch/x86/interrupts.h>
   2 #include <lunaix/tty/tty.h>
   3 #include <lunaix/spike.h>
   4 #include <lunaix/syslog.h>
   5
   6 #include <klibc/stdio.h>
   7
   8 #include <hal/apic.h>
   9
  10 LOG_MODULE("INTR")
  11
  12 extern void
  13 intr_routine_page_fault (const isr_param* param);
  14
  15 void
  16 __print_panic_msg(const char* msg, const isr_param* param)
  17 {
  18     kprint_panic("  INT %u: (%x) [%p: %p] %s",
  19             param->vector,
  20             param->err_code,
  21             param->cs,
  22             param->eip,
  23             msg);
  24 }
  25
  26 void
  27 intr_routine_divide_zero (const isr_param* param)
  28 {
  29     __print_panic_msg("Divide by zero!", param);
  30     spin();
  31 }
  32
  33 void
  34 intr_routine_general_protection (const isr_param* param)
  35 {
  36     __print_panic_msg("General Protection", param);
  37     spin();
  38 }
  39
  40 void
  41 intr_routine_sys_panic (const isr_param* param)
  42 {
  43     __print_panic_msg((char*)(param->registers.edi), param);
  44     spin();
  45 }
  46
  47 void
  48 intr_routine_fallback (const isr_param* param)
  49 {
  50     __print_panic_msg("Unknown Interrupt", param);
  51     spin();
  52 }
  53
  54 /**
  55  * @brief ISR for Spurious interrupt
  56  *
  57  * @param isr_param passed by CPU
  58  */
  59 void
  60 intr_routine_apic_spi (const isr_param* param)
  61 {
  62     // FUTURE: do nothing for now
  63 }
  64
  65 void
  66 intr_routine_apic_error (const isr_param* param)
  67 {
  68     uint32_t error_reg = apic_read_reg(APIC_ESR);
  69     char buf[32];
  70     sprintf(buf, "APIC error, ESR=0x%x", error_reg);
  71     __print_panic_msg(buf, param);
  72     spin();
  73 }
  74
  75 void
  76 intr_routine_init()
  77 {
  78     intr_subscribe(FAULT_DIVISION_ERROR,     intr_routine_divide_zero);
  79     intr_subscribe(FAULT_GENERAL_PROTECTION, intr_routine_general_protection);
  80     intr_subscribe(FAULT_PAGE_FAULT,         intr_routine_page_fault);
  81     intr_subscribe(LUNAIX_SYS_PANIC,         intr_routine_sys_panic);
  82     intr_subscribe(APIC_SPIV_IV,             intr_routine_apic_spi);
  83     intr_subscribe(APIC_ERROR_IV,            intr_routine_apic_error);
  84
  85     intr_set_fallback_handler(intr_set_fallback_handler);
  86 }