Commit 12fae585 authored by Heiko Carstens's avatar Heiko Carstens Committed by Martin Schwidefsky
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[S390] 3215: add support for irq statistics 



Add support for 3215 I/O interrupt statistics in /proc/interrupts.

Signed-off-by: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 3283942b

arch/s390/include/asm/irq.h

+1 −0
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ enum interruption_class { 
	IOINT_QAI,

	IOINT_QDI,

	IOINT_DAS,

	IOINT_C15,

	NMI_NMI,

	NR_IRQS,

};

arch/s390/kernel/irq.c

+1 −0
Original line number Diff line number Diff line
@@ -35,6 +35,7 @@ static const struct irq_class intrclass_names[] = { 
	{.name = "QAI", .desc = "[I/O] QDIO Adapter Interrupt" },

	{.name = "QDI", .desc = "[I/O] QDIO Interrupt" },

	{.name = "DAS", .desc = "[I/O] DASD" },

	{.name = "C15", .desc = "[I/O] 3215" },

	{.name = "NMI", .desc = "[NMI] Machine Check" },

};

drivers/s390/char/con3215.c

+2 −0
Original line number Diff line number Diff line
@@ -9,6 +9,7 @@ 
 *	      Dan Morrison, IBM Corporation <dmorriso@cse.buffalo.edu>

 */



#include <linux/kernel_stat.h>

#include <linux/module.h>

#include <linux/types.h>

#include <linux/kdev_t.h>
@@ -361,6 +362,7 @@ static void raw3215_irq(struct ccw_device *cdev, unsigned long intparm, 
	int cstat, dstat;

	int count;



	kstat_cpu(smp_processor_id()).irqs[IOINT_C15]++;

	raw = dev_get_drvdata(&cdev->dev);

	req = (struct raw3215_req *) intparm;

	cstat = irb->scsw.cmd.cstat;