[RFC v2 1/5] perf/pmu-events/jevents: Add enum to store aggregation like PerPkg

From: Kajol Jain
Date: Tue Jul 07 2020 - 08:23:45 EST

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Initially, every time we want to add new terms like chip, core, thread
etc, we need to create corrsponding fields in pmu_events and event
struct.
This patch adds an enum called 'aggr_mode_class' which store all these
aggregation like perpkg/percore. It also adds new field 'aggr_mode'
to capture these terms.
Now, if user wants to add any new term, they just need to add it in
the enum defined.

Signed-off-by: Kajol Jain <kjain@xxxxxxxxxxxxx>
---
tools/perf/pmu-events/jevents.c | 39 +++++++++++++++++++-----------
tools/perf/pmu-events/jevents.h | 2 +-
tools/perf/pmu-events/pmu-events.h | 6 ++++-
tools/perf/tests/pmu-events.c | 8 +++---
tools/perf/util/pmu.c | 6 ++---
5 files changed, 38 insertions(+), 23 deletions(-)

diff --git a/tools/perf/pmu-events/jevents.c b/tools/perf/pmu-events/jevents.c
index fa86c5f997cc..b2f59f0af63d 100644
--- a/tools/perf/pmu-events/jevents.c
+++ b/tools/perf/pmu-events/jevents.c
@@ -53,6 +53,17 @@
int verbose;
char *prog;

+enum aggr_mode_class {
+ PerPkg = 1
+};
+
+enum aggr_mode_class convert(const char *aggr_mode)
+{
+ if (!strcmp(aggr_mode, "PerPkg"))
+ return PerPkg;
+ return -1;
+}
+
int eprintf(int level, int var, const char *fmt, ...)
{

@@ -320,7 +331,7 @@ static void print_events_table_prefix(FILE *fp, const char *tblname)

static int print_events_table_entry(void *data, char *name, char *event,
char *desc, char *long_desc,
- char *pmu, char *unit, char *perpkg,
+ char *pmu, char *unit, char *aggr_mode,
char *metric_expr,
char *metric_name, char *metric_group,
char *deprecated, char *metric_constraint)
@@ -345,10 +356,10 @@ static int print_events_table_entry(void *data, char *name, char *event,
fprintf(outfp, "\t.long_desc = \"%s\",\n", long_desc);
if (pmu)
fprintf(outfp, "\t.pmu = \"%s\",\n", pmu);
+ if (aggr_mode)
+ fprintf(outfp, "\t.aggr_mode = \"%d\",\n", convert(aggr_mode));
if (unit)
fprintf(outfp, "\t.unit = \"%s\",\n", unit);
- if (perpkg)
- fprintf(outfp, "\t.perpkg = \"%s\",\n", perpkg);
if (metric_expr)
fprintf(outfp, "\t.metric_expr = \"%s\",\n", metric_expr);
if (metric_name)
@@ -372,7 +383,7 @@ struct event_struct {
char *long_desc;
char *pmu;
char *unit;
- char *perpkg;
+ char *aggr_mode;
char *metric_expr;
char *metric_name;
char *metric_group;
@@ -401,7 +412,7 @@ struct event_struct {
op(long_desc); \
op(pmu); \
op(unit); \
- op(perpkg); \
+ op(aggr_mode); \
op(metric_expr); \
op(metric_name); \
op(metric_group); \
@@ -423,7 +434,7 @@ static void free_arch_std_events(void)

static int save_arch_std_events(void *data, char *name, char *event,
char *desc, char *long_desc, char *pmu,
- char *unit, char *perpkg, char *metric_expr,
+ char *unit, char *aggr_mode, char *metric_expr,
char *metric_name, char *metric_group,
char *deprecated, char *metric_constraint)
{
@@ -487,7 +498,7 @@ static char *real_event(const char *name, char *event)
static int
try_fixup(const char *fn, char *arch_std, char **event, char **desc,
char **name, char **long_desc, char **pmu, char **filter,
- char **perpkg, char **unit, char **metric_expr, char **metric_name,
+ char **aggr_mode, char **unit, char **metric_expr, char **metric_name,
char **metric_group, unsigned long long eventcode,
char **deprecated, char **metric_constraint)
{
@@ -515,7 +526,7 @@ try_fixup(const char *fn, char *arch_std, char **event, char **desc,
int json_events(const char *fn,
int (*func)(void *data, char *name, char *event, char *desc,
char *long_desc,
- char *pmu, char *unit, char *perpkg,
+ char *pmu, char *unit, char *aggr_mode,
char *metric_expr,
char *metric_name, char *metric_group,
char *deprecated, char *metric_constraint),
@@ -542,7 +553,7 @@ int json_events(const char *fn,
char *extra_desc = NULL;
char *pmu = NULL;
char *filter = NULL;
- char *perpkg = NULL;
+ char *aggr_mode = NULL;
char *unit = NULL;
char *metric_expr = NULL;
char *metric_name = NULL;
@@ -625,8 +636,8 @@ int json_events(const char *fn,
addfield(map, &filter, "", "", val);
} else if (json_streq(map, field, "ScaleUnit")) {
addfield(map, &unit, "", "", val);
- } else if (json_streq(map, field, "PerPkg")) {
- addfield(map, &perpkg, "", "", val);
+ } else if (json_streq(map, field, "AggregationMode")) {
+ addfield(map, &aggr_mode, "", "", val);
} else if (json_streq(map, field, "Deprecated")) {
addfield(map, &deprecated, "", "", val);
} else if (json_streq(map, field, "MetricName")) {
@@ -673,7 +684,7 @@ int json_events(const char *fn,
* fixup any unassigned values.
*/
err = try_fixup(fn, arch_std, &event, &desc, &name,
- &long_desc, &pmu, &filter, &perpkg,
+ &long_desc, &pmu, &filter, &aggr_mode,
&unit, &metric_expr, &metric_name,
&metric_group, eventcode,
&deprecated, &metric_constraint);
@@ -681,7 +692,7 @@ int json_events(const char *fn,
goto free_strings;
}
err = func(data, name, real_event(name, event), desc, long_desc,
- pmu, unit, perpkg, metric_expr, metric_name,
+ pmu, unit, aggr_mode, metric_expr, metric_name,
metric_group, deprecated, metric_constraint);
free_strings:
free(event);
@@ -691,7 +702,7 @@ int json_events(const char *fn,
free(extra_desc);
free(pmu);
free(filter);
- free(perpkg);
+ free(aggr_mode);
free(deprecated);
free(unit);
free(metric_expr);
diff --git a/tools/perf/pmu-events/jevents.h b/tools/perf/pmu-events/jevents.h
index 2afc8304529e..63e72c0c312f 100644
--- a/tools/perf/pmu-events/jevents.h
+++ b/tools/perf/pmu-events/jevents.h
@@ -6,7 +6,7 @@ int json_events(const char *fn,
int (*func)(void *data, char *name, char *event, char *desc,
char *long_desc,
char *pmu,
- char *unit, char *perpkg, char *metric_expr,
+ char *unit, char *aggr_mode, char *metric_expr,
char *metric_name, char *metric_group,
char *deprecated, char *metric_constraint),
void *data);
diff --git a/tools/perf/pmu-events/pmu-events.h b/tools/perf/pmu-events/pmu-events.h
index c8f306b572f4..71b7aa6278d0 100644
--- a/tools/perf/pmu-events/pmu-events.h
+++ b/tools/perf/pmu-events/pmu-events.h
@@ -2,6 +2,10 @@
#ifndef PMU_EVENTS_H
#define PMU_EVENTS_H

+enum aggr_mode_class {
+ PerPkg = 1
+};
+
/*
* Describe each PMU event. Each CPU has a table of PMU events.
*/
@@ -13,7 +17,7 @@ struct pmu_event {
const char *long_desc;
const char *pmu;
const char *unit;
- const char *perpkg;
+ const char *aggr_mode;
const char *metric_expr;
const char *metric_name;
const char *metric_group;
diff --git a/tools/perf/tests/pmu-events.c b/tools/perf/tests/pmu-events.c
index ab64b4a4e284..51b9c0399611 100644
--- a/tools/perf/tests/pmu-events.c
+++ b/tools/perf/tests/pmu-events.c
@@ -206,10 +206,10 @@ static int test_pmu_event_table(void)
return -1;
}

- if (!is_same(table->perpkg, te->perpkg)) {
- pr_debug2("testing event table %s: mismatched perpkg, %s vs %s\n",
- table->name, table->perpkg,
- te->perpkg);
+ if (!is_same(table->aggr_mode, te->aggr_mode)) {
+ pr_debug2("testing event table %s: mismatched aggr_mode, %s vs %s\n",
+ table->name, table->aggr_mode,
+ te->aggr_mode);
return -1;
}

diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 93fe72a9dc0b..3cafbb320d68 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -306,7 +306,7 @@ static bool perf_pmu_merge_alias(struct perf_pmu_alias *newalias,
static int __perf_pmu__new_alias(struct list_head *list, char *dir, char *name,
char *desc, char *val,
char *long_desc, char *topic,
- char *unit, char *perpkg,
+ char *unit, char *aggr_mode,
char *metric_expr,
char *metric_name,
char *deprecated)
@@ -378,7 +378,7 @@ static int __perf_pmu__new_alias(struct list_head *list, char *dir, char *name,
return -1;
snprintf(alias->unit, sizeof(alias->unit), "%s", unit);
}
- alias->per_pkg = perpkg && sscanf(perpkg, "%d", &num) == 1 && num == 1;
+ alias->per_pkg = aggr_mode && sscanf(aggr_mode, "%d", &num) == 1 && num == 1;
alias->str = strdup(newval);

if (deprecated)
@@ -776,7 +776,7 @@ void pmu_add_cpu_aliases_map(struct list_head *head, struct perf_pmu *pmu,
__perf_pmu__new_alias(head, NULL, (char *)pe->name,
(char *)pe->desc, (char *)pe->event,
(char *)pe->long_desc, (char *)pe->topic,
- (char *)pe->unit, (char *)pe->perpkg,
+ (char *)pe->unit, (char *)pe->aggr_mode,
(char *)pe->metric_expr,
(char *)pe->metric_name,
(char *)pe->deprecated);
--
2.26.2

Next message: Kajol Jain: "[RFC v2 0/5] tools/perf/pmu-events/jevents.c"
Previous message: Linus Walleij: "Re: [PATCH 1/2] pinctrl: ingenic: Enhance support for IRQ_TYPE_EDGE_BOTH"
In reply to: Kajol Jain: "[RFC v2 0/5] tools/perf/pmu-events/jevents.c"
Next in thread: Kajol Jain: "[RFC v2 3/5] perf jevents: Add support for parsing perchip/percore events"
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