From: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com>
Create a sysfs entry, '/sys/bus/event_source/devices/cpu/format/event'
which describes the format of the POWER7 PMU events.
This code is based on corresponding code in x86.
Changelog[v4]: [Michael Ellerman, Paul Mckerras] The event format is different
for other POWER cpus. So move the code to POWER7-specific,
power7-pmu.c Also, the POWER7 format uses bits 0-19 not 0-20.
Changelog[v2]: [Jiri Osla] Use PMU_FORMAT_ATTR rather than duplicating code.
Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com>
Acked-by: Paul Mackerras <pau...@samba.org>
Tested-by: Michael Ellerman <mich...@ellerman.id.au>
Cc: Andi Kleen <a...@linux.intel.com>
Cc: Anton Blanchard <an...@au1.ibm.com>
Cc: Ingo Molnar <mi...@redhat.com>
Cc: Jiri Olsa <jo...@redhat.com>
Cc: Michael Ellerman <mich...@ellerman.id.au>
Cc: Paul Mackerras <pau...@samba.org>
Cc: Peter Zijlstra <a.p.zijls...@chello.nl>
Cc: Robert Richter <robert.rich...@amd.com>
Cc: Stephane Eranian <eran...@google.com>
Cc: b...@kernel.crashing.org
Cc: linuxppc-...@ozlabs.org
Link: http://lkml.kernel.org/r/20130306054826.ga14...@us.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com>
---
arch/powerpc/perf/power7-pmu.c | 13 +++++++++++++
1 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/perf/power7-pmu.c b/arch/powerpc/perf/power7-pmu.c
index b554879..3c475d6 100644
--- a/arch/powerpc/perf/power7-pmu.c
+++ b/arch/powerpc/perf/power7-pmu.c
@@ -420,7 +420,20 @@ static struct attribute_group power7_pmu_events_group = {
.attrs = power7_events_attr,
};
+PMU_FORMAT_ATTR(event, "config:0-19");
+
+static struct attribute *power7_pmu_format_attr[] = {
+ &format_attr_event.attr,
+ NULL,
+};
+
+struct attribute_group power7_pmu_format_group = {
+ .name = "format",
+ .attrs = power7_pmu_format_attr,
+};
+
static const struct attribute_group *power7_pmu_attr_groups[] = {
+ &power7_pmu_format_group,
&power7_pmu_events_group,
NULL,
};
--
1.7.1
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