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| author | Sebastian Ott <sebott@linux.vnet.ibm.com> | 2012-08-28 14:48:47 (GMT) |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2012-09-26 13:45:00 (GMT) |
| commit | 2e73c2cf78f797f3ff299ca39b210bceb40ab804 (patch) | |
| tree | 22d4751c236bb57d0cff1f2cf5d5734f82e9afc5 | |
| parent | eadb86ab80545d04a0ee576e92ba4447621cdb02 (diff) | |
| download | linux-fsl-qoriq-2e73c2cf78f797f3ff299ca39b210bceb40ab804.tar.xz | |
s390/eadm_sch: add support for irq statistics
Add support for EADM interrupt statistics in /proc/interrupts.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| -rw-r--r-- | arch/s390/include/asm/irq.h | 1 | ||||
| -rw-r--r-- | arch/s390/kernel/irq.c | 1 | ||||
| -rw-r--r-- | drivers/s390/cio/eadm_sch.c | 3 |
3 files changed, 5 insertions, 0 deletions
diff --git a/arch/s390/include/asm/irq.h b/arch/s390/include/asm/irq.h index 2b9d418..33cc590 100644 --- a/arch/s390/include/asm/irq.h +++ b/arch/s390/include/asm/irq.h @@ -30,6 +30,7 @@ enum interruption_class { IOINT_CLW, IOINT_CTC, IOINT_APB, + IOINT_ADM, IOINT_CSC, NMI_NMI, NR_IRQS, diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c index dd7630d..a22fdca 100644 --- a/arch/s390/kernel/irq.c +++ b/arch/s390/kernel/irq.c @@ -55,6 +55,7 @@ static const struct irq_class intrclass_names[] = { {.name = "CLW", .desc = "[I/O] CLAW" }, {.name = "CTC", .desc = "[I/O] CTC" }, {.name = "APB", .desc = "[I/O] AP Bus" }, + {.name = "ADM", .desc = "[I/O] EADM Subchannel" }, {.name = "CSC", .desc = "[I/O] CHSC Subchannel" }, {.name = "NMI", .desc = "[NMI] Machine Check" }, }; diff --git a/drivers/s390/cio/eadm_sch.c b/drivers/s390/cio/eadm_sch.c index 3fc882f..6c96734 100644 --- a/drivers/s390/cio/eadm_sch.c +++ b/drivers/s390/cio/eadm_sch.c @@ -5,6 +5,7 @@ * Author(s): Sebastian Ott <sebott@linux.vnet.ibm.com> */ +#include <linux/kernel_stat.h> #include <linux/workqueue.h> #include <linux/spinlock.h> #include <linux/device.h> @@ -138,6 +139,8 @@ static void eadm_subchannel_irq(struct subchannel *sch) EADM_LOG(6, "irq"); EADM_LOG_HEX(6, irb, sizeof(*irb)); + kstat_cpu(smp_processor_id()).irqs[IOINT_ADM]++; + if ((scsw->stctl & (SCSW_STCTL_ALERT_STATUS | SCSW_STCTL_STATUS_PEND)) && scsw->eswf == 1 && irb->esw.eadm.erw.r) error = -EIO; |