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-rw-r--r--arch/s390/include/asm/irq.h1
-rw-r--r--arch/s390/kernel/irq.c1
-rw-r--r--drivers/s390/cio/chsc_sch.c5
3 files changed, 6 insertions, 1 deletions
diff --git a/arch/s390/include/asm/irq.h b/arch/s390/include/asm/irq.h
index 1f686059f29..eadfa9fc03b 100644
--- a/arch/s390/include/asm/irq.h
+++ b/arch/s390/include/asm/irq.h
@@ -28,6 +28,7 @@ enum interruption_class {
IOINT_CLW,
IOINT_CTC,
IOINT_APB,
+ IOINT_CSC,
NMI_NMI,
NR_IRQS,
};
diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index d382f9db3df..30faaef3445 100644
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c
@@ -53,6 +53,7 @@ static const struct irq_class intrclass_names[] = {
{.name = "CLW", .desc = "[I/O] CLAW" },
{.name = "CTC", .desc = "[I/O] CTC" },
{.name = "APB", .desc = "[I/O] AP Bus" },
+ {.name = "CSC", .desc = "[I/O] CHSC Subchannel" },
{.name = "NMI", .desc = "[NMI] Machine Check" },
};
diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c
index e950f1ad4dd..0c87b0fc771 100644
--- a/drivers/s390/cio/chsc_sch.c
+++ b/drivers/s390/cio/chsc_sch.c
@@ -1,7 +1,7 @@
/*
* Driver for s390 chsc subchannels
*
- * Copyright IBM Corp. 2008, 2009
+ * Copyright IBM Corp. 2008, 2011
*
* Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
*
@@ -12,6 +12,7 @@
#include <linux/module.h>
#include <linux/uaccess.h>
#include <linux/miscdevice.h>
+#include <linux/kernel_stat.h>
#include <asm/compat.h>
#include <asm/cio.h>
@@ -56,6 +57,8 @@ static void chsc_subchannel_irq(struct subchannel *sch)
CHSC_LOG(4, "irb");
CHSC_LOG_HEX(4, irb, sizeof(*irb));
+ kstat_cpu(smp_processor_id()).irqs[IOINT_CSC]++;
+
/* Copy irb to provided request and set done. */
if (!request) {
CHSC_MSG(0, "Interrupt on sch 0.%x.%04x with no request\n",