[PATCH v2 18/20] perf tools: Add support for the SPF perf event

From: Laurent Dufour
Date: Thu Aug 17 2017 - 18:06:47 EST


Add support for the new speculative faults event.

Signed-off-by: Laurent Dufour <ldufour@xxxxxxxxxxxxxxxxxx>
---
tools/include/uapi/linux/perf_event.h | 1 +
tools/perf/util/evsel.c | 1 +
tools/perf/util/parse-events.c | 4 ++++
tools/perf/util/parse-events.l | 1 +
tools/perf/util/python.c | 1 +
5 files changed, 8 insertions(+)

diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h
index b1c0b187acfe..3043ec0988e9 100644
--- a/tools/include/uapi/linux/perf_event.h
+++ b/tools/include/uapi/linux/perf_event.h
@@ -111,6 +111,7 @@ enum perf_sw_ids {
PERF_COUNT_SW_EMULATION_FAULTS = 8,
PERF_COUNT_SW_DUMMY = 9,
PERF_COUNT_SW_BPF_OUTPUT = 10,
+ PERF_COUNT_SW_SPF_DONE = 11,

PERF_COUNT_SW_MAX, /* non-ABI */
};
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 413f74df08de..660a7038198b 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -426,6 +426,7 @@ const char *perf_evsel__sw_names[PERF_COUNT_SW_MAX] = {
"alignment-faults",
"emulation-faults",
"dummy",
+ "speculative-faults",
};

static const char *__perf_evsel__sw_name(u64 config)
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 01e779b91c8e..ef8ef30d39c3 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -135,6 +135,10 @@ struct event_symbol event_symbols_sw[PERF_COUNT_SW_MAX] = {
.symbol = "bpf-output",
.alias = "",
},
+ [PERF_COUNT_SW_SPF_DONE] = {
+ .symbol = "speculative-faults",
+ .alias = "spf",
+ },
};

#define __PERF_EVENT_FIELD(config, name) \
diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
index 660fca05bc93..5cb78f004737 100644
--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -274,6 +274,7 @@ alignment-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_AL
emulation-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_EMULATION_FAULTS); }
dummy { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_DUMMY); }
bpf-output { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_BPF_OUTPUT); }
+speculative-faults|spf { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_SPF_DONE); }

/*
* We have to handle the kernel PMU event cycles-ct/cycles-t/mem-loads/mem-stores separately.
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index c129e99114ae..1ee06e47d9dc 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -1141,6 +1141,7 @@ static struct {
PERF_CONST(COUNT_SW_ALIGNMENT_FAULTS),
PERF_CONST(COUNT_SW_EMULATION_FAULTS),
PERF_CONST(COUNT_SW_DUMMY),
+ PERF_CONST(COUNT_SW_SPF_DONE),

PERF_CONST(SAMPLE_IP),
PERF_CONST(SAMPLE_TID),
--
2.7.4