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

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