arch/x86/kernel/cpu/mcheck/threshold.c

   1 /*
   2  * Common corrected MCE threshold handler code:
   3  */
   4 #include <linux/interrupt.h>
   5 #include <linux/kernel.h>
   6
   7 #include <asm/irq_vectors.h>
   8 #include <asm/apic.h>
   9 #include <asm/mce.h>
  10 #include <asm/trace/irq_vectors.h>
  11
  12 static void default_threshold_interrupt(void)
  13 {
  14         pr_err("Unexpected threshold interrupt at vector %x\n",
  15                 THRESHOLD_APIC_VECTOR);
  16 }
  17
  18 void (*mce_threshold_vector)(void) = default_threshold_interrupt;
  19
  20 static inline void __smp_threshold_interrupt(void)
  21 {
  22         inc_irq_stat(irq_threshold_count);
  23         mce_threshold_vector();
  24 }
  25
  26 asmlinkage __visible void __irq_entry smp_threshold_interrupt(void)
  27 {
  28         entering_irq();
  29         __smp_threshold_interrupt();
  30         exiting_ack_irq();
  31 }
  32
  33 asmlinkage __visible void __irq_entry smp_trace_threshold_interrupt(void)
  34 {
  35         entering_irq();
  36         trace_threshold_apic_entry(THRESHOLD_APIC_VECTOR);
  37         __smp_threshold_interrupt();
  38         trace_threshold_apic_exit(THRESHOLD_APIC_VECTOR);
  39         exiting_ack_irq();
  40 }