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[S390] ap bus: add support for irq statistics

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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>
This commit is contained in:
Holger Dengler
2011-01-05 12:47:38 +01:00
committed by Martin Schwidefsky
parent 85b81cdd0b
commit 62d146ffe3
3 changed files with 4 additions and 0 deletions
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1
arch/s390/include/asm/irq.h
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@@ -25,6 +25,7 @@ enum interruption_class {
IOINT_LCS, IOINT_LCS,
IOINT_CLW, IOINT_CLW,
IOINT_CTC, IOINT_CTC,
IOINT_APB,
NMI_NMI, NMI_NMI,
NR_IRQS, NR_IRQS,
}; };

1
arch/s390/kernel/irq.c
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@@ -42,6 +42,7 @@ static const struct irq_class intrclass_names[] = {
{.name = "LCS", .desc = "[I/O] LCS" }, {.name = "LCS", .desc = "[I/O] LCS" },
{.name = "CLW", .desc = "[I/O] CLAW" }, {.name = "CLW", .desc = "[I/O] CLAW" },
{.name = "CTC", .desc = "[I/O] CTC" }, {.name = "CTC", .desc = "[I/O] CTC" },
{.name = "APB", .desc = "[I/O] AP Bus" },
{.name = "NMI", .desc = "[NMI] Machine Check" }, {.name = "NMI", .desc = "[NMI] Machine Check" },
}; };

2
drivers/s390/crypto/ap_bus.c
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@@ -27,6 +27,7 @@
#define KMSG_COMPONENT "ap" #define KMSG_COMPONENT "ap"
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
#include <linux/kernel_stat.h>
#include <linux/module.h> #include <linux/module.h>
#include <linux/init.h> #include <linux/init.h>
#include <linux/delay.h> #include <linux/delay.h>
@@ -1042,6 +1043,7 @@ out:
static void ap_interrupt_handler(void *unused1, void *unused2) static void ap_interrupt_handler(void *unused1, void *unused2)
{ {
kstat_cpu(smp_processor_id()).irqs[IOINT_APB]++;
tasklet_schedule(&ap_tasklet); tasklet_schedule(&ap_tasklet);
} }