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[S390] ctc: add support for irq statistics
Add support for CTC I/O interrupt statistics in /proc/interrupts. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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3 changed files with 4 additions and 0 deletions
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@ -24,6 +24,7 @@ enum interruption_class {
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IOINT_VMR,
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IOINT_LCS,
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IOINT_CLW,
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IOINT_CTC,
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NMI_NMI,
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NR_IRQS,
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};
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@ -41,6 +41,7 @@ static const struct irq_class intrclass_names[] = {
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{.name = "VMR", .desc = "[I/O] Unit Record Devices" },
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{.name = "LCS", .desc = "[I/O] LCS" },
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{.name = "CLW", .desc = "[I/O] CLAW" },
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{.name = "CTC", .desc = "[I/O] CTC" },
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{.name = "NMI", .desc = "[NMI] Machine Check" },
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};
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@ -24,6 +24,7 @@
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#define KMSG_COMPONENT "ctcm"
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#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
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#include <linux/kernel_stat.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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@ -1204,6 +1205,7 @@ static void ctcm_irq_handler(struct ccw_device *cdev,
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int cstat;
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int dstat;
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kstat_cpu(smp_processor_id()).irqs[IOINT_CTC]++;
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CTCM_DBF_TEXT_(TRACE, CTC_DBF_DEBUG,
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"Enter %s(%s)", CTCM_FUNTAIL, dev_name(&cdev->dev));
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