lunaix-os/arch/i386/exceptions/intr_routines.c

   1 #include <sys/interrupts.h>
   2
   3 #include <lunaix/isrm.h>
   4 #include <lunaix/lxconsole.h>
   5 #include <lunaix/process.h>
   6 #include <lunaix/sched.h>
   7 #include <lunaix/spike.h>
   8 #include <lunaix/syslog.h>
   9 #include <lunaix/trace.h>
  10 #include <lunaix/tty/tty.h>
  11
  12 #include <klibc/stdio.h>
  13
  14 #include <sys/apic.h>
  15 #include <sys/i386_intr.h>
  16
  17 LOG_MODULE("INTR")
  18
  19 extern void
  20 intr_routine_page_fault(const isr_param* param);
  21
  22 extern u32_t debug_resv;
  23
  24 void
  25 __print_panic_msg(const char* msg, const isr_param* param)
  26 {
  27     kprintf(KERROR "panic: %s\n", msg);
  28     trace_printstack_isr(param);
  29 }
  30
  31 void
  32 intr_routine_divide_zero(const isr_param* param)
  33 {
  34     __print_panic_msg("div zero", param);
  35
  36     console_flush();
  37     spin();
  38 }
  39
  40 void
  41 intr_routine_general_protection(const isr_param* param)
  42 {
  43     __print_panic_msg("general protection", param);
  44
  45     console_flush();
  46     spin();
  47 }
  48
  49 void
  50 intr_routine_sys_panic(const isr_param* param)
  51 {
  52     __print_panic_msg((char*)(param->registers.edi), param);
  53
  54     console_flush();
  55     spin();
  56 }
  57
  58 void
  59 intr_routine_fallback(const isr_param* param)
  60 {
  61     __print_panic_msg("unknown interrupt", param);
  62
  63     console_flush();
  64     spin();
  65 }
  66
  67 /**
  68  * @brief ISR for Spurious interrupt
  69  *
  70  * @param isr_param passed by CPU
  71  */
  72 void
  73 intr_routine_apic_spi(const isr_param* param)
  74 {
  75     // FUTURE: do nothing for now
  76 }
  77
  78 void
  79 intr_routine_apic_error(const isr_param* param)
  80 {
  81     u32_t error_reg = apic_read_reg(APIC_ESR);
  82     char buf[32];
  83     ksprintf(buf, "APIC error, ESR=0x%x", error_reg);
  84
  85     __print_panic_msg(buf, param);
  86
  87     console_flush();
  88     spin();
  89 }
  90
  91 void
  92 intr_routine_sched(const isr_param* param)
  93 {
  94     schedule();
  95 }
  96
  97 void
  98 intr_routine_init()
  99 {
 100     isrm_bindiv(FAULT_DIVISION_ERROR, intr_routine_divide_zero);
 101     isrm_bindiv(FAULT_GENERAL_PROTECTION, intr_routine_general_protection);
 102     isrm_bindiv(FAULT_PAGE_FAULT, intr_routine_page_fault);
 103     isrm_bindiv(FAULT_STACK_SEG_FAULT, intr_routine_page_fault);
 104
 105     isrm_bindiv(LUNAIX_SYS_PANIC, intr_routine_sys_panic);
 106     isrm_bindiv(LUNAIX_SCHED, intr_routine_sched);
 107
 108     isrm_bindiv(APIC_SPIV_IV, intr_routine_apic_spi);
 109     isrm_bindiv(APIC_ERROR_IV, intr_routine_apic_error);
 110 }