1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Common corrected MCE threshold handler code:
4  */
5 #include <linux/interrupt.h>
6 #include <linux/kernel.h>
7 
8 #include <asm/irq_vectors.h>
9 #include <asm/apic.h>
10 #include <asm/mce.h>
11 #include <asm/trace/irq_vectors.h>
12 
default_threshold_interrupt(void)13 static void default_threshold_interrupt(void)
14 {
15 	pr_err("Unexpected threshold interrupt at vector %x\n",
16 		THRESHOLD_APIC_VECTOR);
17 }
18 
19 void (*mce_threshold_vector)(void) = default_threshold_interrupt;
20 
smp_threshold_interrupt(void)21 asmlinkage __visible void __irq_entry smp_threshold_interrupt(void)
22 {
23 	entering_irq();
24 	trace_threshold_apic_entry(THRESHOLD_APIC_VECTOR);
25 	inc_irq_stat(irq_threshold_count);
26 	mce_threshold_vector();
27 	trace_threshold_apic_exit(THRESHOLD_APIC_VECTOR);
28 	exiting_ack_irq();
29 }
30