linux-kernel - [PATCH v4 4/5] perf/tools: Pass pmu_event structure as a parameter for arch_get

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Message-Id: <20200720070127.109234-5-kjain@linux.ibm.com>
Date:   Mon, 20 Jul 2020 12:31:26 +0530
From:   Kajol Jain <kjain@...ux.ibm.com>
To:     acme@...nel.org
Cc:     peterz@...radead.org, mingo@...hat.com, mark.rutland@....com,
        alexander.shishkin@...ux.intel.com, pc@...ibm.com,
        jolsa@...hat.com, namhyung@...nel.org, ak@...ux.intel.com,
        yao.jin@...ux.intel.com, linux-kernel@...r.kernel.org,
        linux-perf-users@...r.kernel.org, irogers@...gle.com,
        maddy@...ux.ibm.com, ravi.bangoria@...ux.ibm.com,
        anju@...ux.vnet.ibm.com, kan.liang@...ux.intel.com,
        nasastry@...ibm.com, kjain@...ux.ibm.com
Subject: [PATCH v4 4/5] perf/tools: Pass pmu_event structure as a parameter for arch_get_runtimeparam

This patch adds passing of  pmu_event as a parameter in function
'arch_get_runtimeparam' which can be used to get details like
if the event is percore/perchip.

Signed-off-by: Kajol Jain <kjain@...ux.ibm.com>
Acked-by: Ian Rogers <irogers@...gle.com>
---
 tools/perf/arch/powerpc/util/header.c | 7 +++++--
 tools/perf/util/metricgroup.c         | 5 ++---
 tools/perf/util/metricgroup.h         | 3 ++-
 3 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/tools/perf/arch/powerpc/util/header.c b/tools/perf/arch/powerpc/util/header.c
index d4870074f14c..c8a33120a7a3 100644
--- a/tools/perf/arch/powerpc/util/header.c
+++ b/tools/perf/arch/powerpc/util/header.c
@@ -47,8 +47,11 @@ get_cpuid_str(struct perf_pmu *pmu __maybe_unused)
 	return bufp;
 }
 
-int arch_get_runtimeparam(void)
+int arch_get_runtimeparam(struct pmu_event *pe)
 {
 	int count;
-	return sysfs__read_int("/devices/hv_24x7/interface/sockets", &count) < 0 ? 1 : count;
+	char path[PATH_MAX] = "/devices/hv_24x7/interface/";
+
+	atoi(pe->aggr_mode) == PerChip ? strcat(path, "sockets") : strcat(path, "coresperchip");
+	return sysfs__read_int(path, &count) < 0 ? 1 : count;
 }
diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
index 82fecb5a302d..58054588f599 100644
--- a/tools/perf/util/metricgroup.c
+++ b/tools/perf/util/metricgroup.c
@@ -15,7 +15,6 @@
 #include "rblist.h"
 #include <string.h>
 #include <errno.h>
-#include "pmu-events/pmu-events.h"
 #include "strlist.h"
 #include <assert.h>
 #include <linux/ctype.h>
@@ -566,7 +565,7 @@ static bool metricgroup__has_constraint(struct pmu_event *pe)
 	return false;
 }
 
-int __weak arch_get_runtimeparam(void)
+int __weak arch_get_runtimeparam(struct pmu_event *pe __maybe_unused)
 {
 	return 1;
 }
@@ -650,7 +649,7 @@ static int metricgroup__add_metric(const char *metric, bool metric_no_group,
 			} else {
 				int j, count;
 
-				count = arch_get_runtimeparam();
+				count = arch_get_runtimeparam(pe);
 
 				/* This loop is added to create multiple
 				 * events depend on count value and add
diff --git a/tools/perf/util/metricgroup.h b/tools/perf/util/metricgroup.h
index 8315bd1a7da4..3917b5e43ebb 100644
--- a/tools/perf/util/metricgroup.h
+++ b/tools/perf/util/metricgroup.h
@@ -5,6 +5,7 @@
 #include <linux/list.h>
 #include <linux/rbtree.h>
 #include <stdbool.h>
+#include "pmu-events/pmu-events.h"
 
 struct evsel;
 struct evlist;
@@ -46,6 +47,6 @@ int metricgroup__parse_groups_test(struct evlist *evlist,
 void metricgroup__print(bool metrics, bool groups, char *filter,
 			bool raw, bool details);
 bool metricgroup__has_metric(const char *metric);
-int arch_get_runtimeparam(void);
+int arch_get_runtimeparam(struct pmu_event *pe __maybe_unused);
 void metricgroup__rblist_exit(struct rblist *metric_events);
 #endif
-- 
2.26.2