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authorHeiko Carstens <heiko.carstens@de.ibm.com>2011-01-05 14:47:28 +0300
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>2011-01-05 14:47:25 +0300
commit052ff461c8427629aee887ccc27478fc7373237c (patch)
tree1b2cae2956cc94c5b32730d467e20ff447b8c072 /drivers/s390/char
parent545b288dcbdea58a2ce2afba5f6a8302d31ac459 (diff)
downloadlinux-052ff461c8427629aee887ccc27478fc7373237c.tar.xz
[S390] irq: have detailed statistics for interrupt types
Up to now /proc/interrupts only has statistics for external and i/o interrupts but doesn't split up them any further. This patch adds a line for every single interrupt source so that it is possible to easier tell what the machine is/was doing. Part of the output now looks like this; CPU0 CPU2 CPU4 EXT: 3898 4232 2305 I/O: 782 315 245 CLK: 1029 1964 727 [EXT] Clock Comparator IPI: 2868 2267 1577 [EXT] Signal Processor TMR: 0 0 0 [EXT] CPU Timer TAL: 0 0 0 [EXT] Timing Alert PFL: 0 0 0 [EXT] Pseudo Page Fault [...] NMI: 0 1 1 [NMI] Machine Checks Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/char')
-rw-r--r--drivers/s390/char/sclp.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/s390/char/sclp.c b/drivers/s390/char/sclp.c
index 35cc4686b99b..e65572e504ba 100644
--- a/drivers/s390/char/sclp.c
+++ b/drivers/s390/char/sclp.c
@@ -7,6 +7,7 @@
* Martin Schwidefsky <schwidefsky@de.ibm.com>
*/
+#include <linux/kernel_stat.h>
#include <linux/module.h>
#include <linux/err.h>
#include <linux/spinlock.h>
@@ -18,8 +19,9 @@
#include <linux/suspend.h>
#include <linux/completion.h>
#include <linux/platform_device.h>
-#include <asm/types.h>
#include <asm/s390_ext.h>
+#include <asm/types.h>
+#include <asm/irq.h>
#include "sclp.h"
@@ -402,6 +404,7 @@ static void sclp_interrupt_handler(unsigned int ext_int_code,
u32 finished_sccb;
u32 evbuf_pending;
+ kstat_cpu(smp_processor_id()).irqs[EXTINT_SCP]++;
spin_lock(&sclp_lock);
finished_sccb = param32 & 0xfffffff8;
evbuf_pending = param32 & 0x3;
@@ -824,6 +827,7 @@ static void sclp_check_handler(unsigned int ext_int_code,
{
u32 finished_sccb;
+ kstat_cpu(smp_processor_id()).irqs[EXTINT_SCP]++;
finished_sccb = param32 & 0xfffffff8;
/* Is this the interrupt we are waiting for? */
if (finished_sccb == 0)