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| author | Sebastian Ott | 2011-10-30 15:16:54 +0100 |
|---|---|---|
| committer | Martin Schwidefsky | 2011-10-30 15:16:44 +0100 |
| commit | 65b4e403ac926f5196c2f28c4ec783d32dc322f0 (patch) | |
| tree | 65db1f414961da1794ac7dfc452ea00fda9b6503 | |
| parent | [S390] ccwgroup: cleanup (diff) | |
| download | kernel-qcow2-linux-65b4e403ac926f5196c2f28c4ec783d32dc322f0.tar.gz kernel-qcow2-linux-65b4e403ac926f5196c2f28c4ec783d32dc322f0.tar.xz kernel-qcow2-linux-65b4e403ac926f5196c2f28c4ec783d32dc322f0.zip | |
[S390] chsc_sch: add support for irq statistics
Add support for CHSC I/O interrupt statistics in /proc/interrupts.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| -rw-r--r-- | arch/s390/include/asm/irq.h | 1 | ||||
| -rw-r--r-- | arch/s390/kernel/irq.c | 1 | ||||
| -rw-r--r-- | drivers/s390/cio/chsc_sch.c | 5 |
3 files changed, 6 insertions, 1 deletions
diff --git a/arch/s390/include/asm/irq.h b/arch/s390/include/asm/irq.h index 1f686059f293..eadfa9fc03ba 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 d382f9db3df5..30faaef34457 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 e950f1ad4dd1..0c87b0fc7714 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", |