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

   1 #include <sys/hart.h>
   2
   3 #include <lunaix/generic/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 #include <lunaix/failsafe.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 struct hart_state* state);
  20
  21 extern u32_t debug_resv;
  22
  23 void
  24 __print_panic_msg(const char* msg, const struct hart_state* state)
  25 {
  26     ERROR("panic: %s", msg);
  27     failsafe_diagnostic();
  28 }
  29
  30 void
  31 intr_routine_divide_zero(const struct hart_state* state)
  32 {
  33     __print_panic_msg("div zero", state);
  34 }
  35
  36 void
  37 intr_routine_general_protection(const struct hart_state* state)
  38 {
  39     __print_panic_msg("general protection", state);
  40 }
  41
  42 void
  43 intr_routine_sys_panic(const struct hart_state* state)
  44 {
  45     __print_panic_msg((char*)(state->registers.edi), state);
  46 }
  47
  48 void
  49 intr_routine_fallback(const struct hart_state* state)
  50 {
  51     __print_panic_msg("unknown interrupt", state);
  52 }
  53
  54 /**
  55  * @brief ISR for Spurious interrupt
  56  *
  57  * @param struct hart_state passed by CPU
  58  */
  59 void
  60 intr_routine_apic_spi(const struct hart_state* state)
  61 {
  62     // FUTURE: do nothing for now
  63 }
  64
  65 void
  66 intr_routine_apic_error(const struct hart_state* state)
  67 {
  68     u32_t error_reg = apic_read_reg(APIC_ESR);
  69     char buf[32];
  70     ksprintf(buf, "APIC error, ESR=0x%x", error_reg);
  71
  72     failsafe_diagnostic();
  73 }
  74
  75 void
  76 intr_routine_sched(const struct hart_state* state)
  77 {
  78     schedule();
  79 }
  80
  81 void
  82 intr_routine_init()
  83 {
  84     isrm_bindiv(FAULT_DIVISION_ERROR, intr_routine_divide_zero);
  85     isrm_bindiv(FAULT_GENERAL_PROTECTION, intr_routine_general_protection);
  86     isrm_bindiv(FAULT_PAGE_FAULT, intr_routine_page_fault);
  87     isrm_bindiv(FAULT_STACK_SEG_FAULT, intr_routine_page_fault);
  88
  89     isrm_bindiv(LUNAIX_SYS_PANIC, intr_routine_sys_panic);
  90     isrm_bindiv(LUNAIX_SCHED, intr_routine_sched);
  91
  92     isrm_bindiv(APIC_SPIV_IV, intr_routine_apic_spi);
  93     isrm_bindiv(APIC_ERROR_IV, intr_routine_apic_error);
  94 }