diff options
author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2011-01-05 06:47:28 -0500 |
---|---|---|
committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2011-01-05 06:47:25 -0500 |
commit | 052ff461c8427629aee887ccc27478fc7373237c (patch) | |
tree | 1b2cae2956cc94c5b32730d467e20ff447b8c072 /drivers/s390/char | |
parent | 545b288dcbdea58a2ce2afba5f6a8302d31ac459 (diff) |
[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.c | 6 |
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 @@ | |||
7 | * Martin Schwidefsky <schwidefsky@de.ibm.com> | 7 | * Martin Schwidefsky <schwidefsky@de.ibm.com> |
8 | */ | 8 | */ |
9 | 9 | ||
10 | #include <linux/kernel_stat.h> | ||
10 | #include <linux/module.h> | 11 | #include <linux/module.h> |
11 | #include <linux/err.h> | 12 | #include <linux/err.h> |
12 | #include <linux/spinlock.h> | 13 | #include <linux/spinlock.h> |
@@ -18,8 +19,9 @@ | |||
18 | #include <linux/suspend.h> | 19 | #include <linux/suspend.h> |
19 | #include <linux/completion.h> | 20 | #include <linux/completion.h> |
20 | #include <linux/platform_device.h> | 21 | #include <linux/platform_device.h> |
21 | #include <asm/types.h> | ||
22 | #include <asm/s390_ext.h> | 22 | #include <asm/s390_ext.h> |
23 | #include <asm/types.h> | ||
24 | #include <asm/irq.h> | ||
23 | 25 | ||
24 | #include "sclp.h" | 26 | #include "sclp.h" |
25 | 27 | ||
@@ -402,6 +404,7 @@ static void sclp_interrupt_handler(unsigned int ext_int_code, | |||
402 | u32 finished_sccb; | 404 | u32 finished_sccb; |
403 | u32 evbuf_pending; | 405 | u32 evbuf_pending; |
404 | 406 | ||
407 | kstat_cpu(smp_processor_id()).irqs[EXTINT_SCP]++; | ||
405 | spin_lock(&sclp_lock); | 408 | spin_lock(&sclp_lock); |
406 | finished_sccb = param32 & 0xfffffff8; | 409 | finished_sccb = param32 & 0xfffffff8; |
407 | evbuf_pending = param32 & 0x3; | 410 | evbuf_pending = param32 & 0x3; |
@@ -824,6 +827,7 @@ static void sclp_check_handler(unsigned int ext_int_code, | |||
824 | { | 827 | { |
825 | u32 finished_sccb; | 828 | u32 finished_sccb; |
826 | 829 | ||
830 | kstat_cpu(smp_processor_id()).irqs[EXTINT_SCP]++; | ||
827 | finished_sccb = param32 & 0xfffffff8; | 831 | finished_sccb = param32 & 0xfffffff8; |
828 | /* Is this the interrupt we are waiting for? */ | 832 | /* Is this the interrupt we are waiting for? */ |
829 | if (finished_sccb == 0) | 833 | if (finished_sccb == 0) |