[S390] ap bus: add support for irq statistics

Add support for AP Bus I/O interrupt statistics in /proc/interrupts.

Signed-off-by: Holger Dengler <hd@linux.vnet.ibm.com>
Signed-off-by: Felix Beck <felix.beck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

2 files changed, 2 insertions, 0 deletions

diff --git a/arch/s390/include/asm/irq.h b/arch/s390/include/asm/irq.h
index 8c79f9400a36..db14a311f1d2 100644
--- a/arch/s390/include/asm/irq.h
+++ b/arch/s390/include/asm/irq.h
@@ -25,6 +25,7 @@ enum interruption_class {
         IOINT_LCS,
         IOINT_CLW,
         IOINT_CTC,
+        IOINT_APB,
         NMI_NMI,
         NR_IRQS,
 };
diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index 57ed2b55c2a1..ea5099c9709c 100644
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c
@@ -42,6 +42,7 @@ static const struct irq_class intrclass_names[] = {
         {.name = "LCS", .desc = "[I/O] LCS" },
         {.name = "CLW", .desc = "[I/O] CLAW" },
         {.name = "CTC", .desc = "[I/O] CTC" },
+        {.name = "APB", .desc = "[I/O] AP Bus" },
         {.name = "NMI", .desc = "[NMI] Machine Check" },
 };