s390/eadm_sch: add support for irq statistics
Add support for EADM interrupt statistics in /proc/interrupts.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/arch/s390/include/asm/irq.h b/arch/s390/include/asm/irq.h
index 2b9d418..33cc590 100644
--- a/arch/s390/include/asm/irq.h
+++ b/arch/s390/include/asm/irq.h
@@ -30,6 +30,7 @@
IOINT_CLW,
IOINT_CTC,
IOINT_APB,
+ IOINT_ADM,
IOINT_CSC,
NMI_NMI,
NR_IRQS,
diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index dd7630d..a22fdca 100644
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c
@@ -55,6 +55,7 @@
{.name = "CLW", .desc = "[I/O] CLAW" },
{.name = "CTC", .desc = "[I/O] CTC" },
{.name = "APB", .desc = "[I/O] AP Bus" },
+ {.name = "ADM", .desc = "[I/O] EADM Subchannel" },
{.name = "CSC", .desc = "[I/O] CHSC Subchannel" },
{.name = "NMI", .desc = "[NMI] Machine Check" },
};
diff --git a/drivers/s390/cio/eadm_sch.c b/drivers/s390/cio/eadm_sch.c
index 3fc882f..6c96734 100644
--- a/drivers/s390/cio/eadm_sch.c
+++ b/drivers/s390/cio/eadm_sch.c
@@ -5,6 +5,7 @@
* Author(s): Sebastian Ott <sebott@linux.vnet.ibm.com>
*/
+#include <linux/kernel_stat.h>
#include <linux/workqueue.h>
#include <linux/spinlock.h>
#include <linux/device.h>
@@ -138,6 +139,8 @@
EADM_LOG(6, "irq");
EADM_LOG_HEX(6, irb, sizeof(*irb));
+ kstat_cpu(smp_processor_id()).irqs[IOINT_ADM]++;
+
if ((scsw->stctl & (SCSW_STCTL_ALERT_STATUS | SCSW_STCTL_STATUS_PEND))
&& scsw->eswf == 1 && irb->esw.eadm.erw.r)
error = -EIO;