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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2011-10-30 15:17:19 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2011-10-30 15:16:47 +0100 |
| commit | 2a3a2d66aa4e5abaf8f9222d21735321f02a00dc (patch) | |
| tree | 92606986642a9cee1561f532c53f4b7ca956ef2f /arch/s390 | |
| parent | e1c4d0142d32f97706b752d94c9e20c3f21901f8 (diff) | |
| download | lwn-2a3a2d66aa4e5abaf8f9222d21735321f02a00dc.tar.gz lwn-2a3a2d66aa4e5abaf8f9222d21735321f02a00dc.zip | |
[S390] irqstats: split IPI interrupt accounting
We use both the external call and emergency call IPIs to signal remote
cpus. Therefore it makes sense to account them differently withing
/proc/irqstats so we actually know what happened.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/include/asm/irq.h | 3 | ||||
| -rw-r--r-- | arch/s390/kernel/irq.c | 3 | ||||
| -rw-r--r-- | arch/s390/kernel/smp.c | 5 |
3 files changed, 8 insertions, 3 deletions
diff --git a/arch/s390/include/asm/irq.h b/arch/s390/include/asm/irq.h index eadfa9fc03ba..ba6d85f88d50 100644 --- a/arch/s390/include/asm/irq.h +++ b/arch/s390/include/asm/irq.h @@ -8,7 +8,8 @@ enum interruption_class { EXTERNAL_INTERRUPT, IO_INTERRUPT, EXTINT_CLK, - EXTINT_IPI, + EXTINT_EXC, + EXTINT_EMS, EXTINT_TMR, EXTINT_TLA, EXTINT_PFL, diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c index 30faaef34457..b9a7fdd9c814 100644 --- a/arch/s390/kernel/irq.c +++ b/arch/s390/kernel/irq.c @@ -33,7 +33,8 @@ static const struct irq_class intrclass_names[] = { {.name = "EXT" }, {.name = "I/O" }, {.name = "CLK", .desc = "[EXT] Clock Comparator" }, - {.name = "IPI", .desc = "[EXT] Signal Processor" }, + {.name = "EXC", .desc = "[EXT] External Call" }, + {.name = "EMS", .desc = "[EXT] Emergency Signal" }, {.name = "TMR", .desc = "[EXT] CPU Timer" }, {.name = "TAL", .desc = "[EXT] Timing Alert" }, {.name = "PFL", .desc = "[EXT] Pseudo Page Fault" }, diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 3bde5688ceb5..3ea872890da2 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -187,7 +187,10 @@ static void do_ext_call_interrupt(unsigned int ext_int_code, { unsigned long bits; - kstat_cpu(smp_processor_id()).irqs[EXTINT_IPI]++; + if (ext_int_code == 0x1202) + kstat_cpu(smp_processor_id()).irqs[EXTINT_EXC]++; + else + kstat_cpu(smp_processor_id()).irqs[EXTINT_EMS]++; /* * handle bit signal external calls */ |