diff options
| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2011-01-05 14:47:28 +0300 |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2011-01-05 14:47:25 +0300 |
| commit | 052ff461c8427629aee887ccc27478fc7373237c (patch) | |
| tree | 1b2cae2956cc94c5b32730d467e20ff447b8c072 /drivers/s390 | |
| parent | 545b288dcbdea58a2ce2afba5f6a8302d31ac459 (diff) | |
| download | linux-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')
| -rw-r--r-- | drivers/s390/block/dasd_diag.c | 2 | ||||
| -rw-r--r-- | drivers/s390/char/sclp.c | 6 | ||||
| -rw-r--r-- | drivers/s390/kvm/kvm_virtio.c | 3 |
3 files changed, 10 insertions, 1 deletions
diff --git a/drivers/s390/block/dasd_diag.c b/drivers/s390/block/dasd_diag.c index 266b34b55403..a3a5db58df18 100644 --- a/drivers/s390/block/dasd_diag.c +++ b/drivers/s390/block/dasd_diag.c @@ -10,6 +10,7 @@ #define KMSG_COMPONENT "dasd" +#include <linux/kernel_stat.h> #include <linux/stddef.h> #include <linux/kernel.h> #include <linux/slab.h> @@ -238,6 +239,7 @@ static void dasd_ext_handler(unsigned int ext_int_code, addr_t ip; int rc; + kstat_cpu(smp_processor_id()).irqs[EXTINT_DSD]++; switch (ext_int_code >> 24) { case DASD_DIAG_CODE_31BIT: ip = (addr_t) param32; 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) diff --git a/drivers/s390/kvm/kvm_virtio.c b/drivers/s390/kvm/kvm_virtio.c index 375aeeaf9ea5..414427d64a8f 100644 --- a/drivers/s390/kvm/kvm_virtio.c +++ b/drivers/s390/kvm/kvm_virtio.c @@ -10,6 +10,7 @@ * Author(s): Christian Borntraeger <borntraeger@de.ibm.com> */ +#include <linux/kernel_stat.h> #include <linux/init.h> #include <linux/bootmem.h> #include <linux/err.h> @@ -25,6 +26,7 @@ #include <asm/kvm_virtio.h> #include <asm/setup.h> #include <asm/s390_ext.h> +#include <asm/irq.h> #define VIRTIO_SUBCODE_64 0x0D00 @@ -379,6 +381,7 @@ static void kvm_extint_handler(unsigned int ext_int_code, u16 subcode; u32 param; + kstat_cpu(smp_processor_id()).irqs[EXTINT_VRT]++; subcode = ext_int_code >> 16; if ((subcode & 0xff00) != VIRTIO_SUBCODE_64) return; |