kernel/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/idle.h>
  10 #include <asm/mce.h>
  11 #include <asm/trace/irq_vectors.h>
  12
  13 static void default_threshold_interrupt(void)
  14 {
  15         printk(KERN_ERR "Unexpected threshold interrupt at vector %x\n",
  16                          THRESHOLD_APIC_VECTOR);
  17 }
  18
  19 void (*mce_threshold_vector)(void) = default_threshold_interrupt;
  20
  21 static inline void __smp_threshold_interrupt(void)
  22 {
  23         inc_irq_stat(irq_threshold_count);
  24         mce_threshold_vector();
  25 }
  26
  27 asmlinkage __visible void smp_threshold_interrupt(void)
  28 {
  29         entering_irq();
  30         __smp_threshold_interrupt();
  31         exiting_ack_irq();
  32 }
  33
  34 asmlinkage __visible void smp_trace_threshold_interrupt(void)
  35 {
  36         entering_irq();
  37         trace_threshold_apic_entry(THRESHOLD_APIC_VECTOR);
  38         __smp_threshold_interrupt();
  39         trace_threshold_apic_exit(THRESHOLD_APIC_VECTOR);
  40         exiting_ack_irq();
  41 }