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