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Date:   Wed, 26 Apr 2023 00:00:38 -0700
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Subject: [PATCH v1 28/40] perf test: Add cputype testing to perf stat
From:   Ian Rogers <irogers@google.com>
To:     Arnaldo Carvalho de Melo <acme@kernel.org>,
        Kan Liang <kan.liang@linux.intel.com>,
        Ahmad Yasin <ahmad.yasin@intel.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Ingo Molnar <mingo@redhat.com>,
        Stephane Eranian <eranian@google.com>,
        Andi Kleen <ak@linux.intel.com>,
        Perry Taylor <perry.taylor@intel.com>,
        Samantha Alt <samantha.alt@intel.com>,
        Caleb Biggers <caleb.biggers@intel.com>,
        Weilin Wang <weilin.wang@intel.com>,
        Edward Baker <edward.baker@intel.com>,
        Mark Rutland <mark.rutland@arm.com>,
        Alexander Shishkin <alexander.shishkin@linux.intel.com>,
        Jiri Olsa <jolsa@kernel.org>,
        Namhyung Kim <namhyung@kernel.org>,
        Adrian Hunter <adrian.hunter@intel.com>,
        Florian Fischer <florian.fischer@muhq.space>,
        Rob Herring <robh@kernel.org>,
        Zhengjun Xing <zhengjun.xing@linux.intel.com>,
        John Garry <john.g.garry@oracle.com>,
        Kajol Jain <kjain@linux.ibm.com>,
        Sumanth Korikkar <sumanthk@linux.ibm.com>,
        Thomas Richter <tmricht@linux.ibm.com>,
        Tiezhu Yang <yangtiezhu@loongson.cn>,
        Ravi Bangoria <ravi.bangoria@amd.com>,
        Leo Yan <leo.yan@linaro.org>,
        Yang Jihong <yangjihong1@huawei.com>,
        James Clark <james.clark@arm.com>,
        Suzuki Poulouse <suzuki.poulose@arm.com>,
        Kang Minchul <tegongkang@gmail.com>,
        Athira Rajeev <atrajeev@linux.vnet.ibm.com>,
        linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org
Cc:     Ian Rogers <irogers@google.com>
Content-Type: text/plain; charset="UTF-8"
Precedence: bulk

Check a bogus PMU fails and that a known PMU succeeds. Limit to PMUs
known cpu, cpu_atom and armv8_pmuv3_0 ones.

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/tests/shell/stat.sh | 44 ++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/tools/perf/tests/shell/stat.sh b/tools/perf/tests/shell/stat.sh
index 2c1d3f704995..fe1283ca39d1 100755
--- a/tools/perf/tests/shell/stat.sh
+++ b/tools/perf/tests/shell/stat.sh
@@ -91,9 +91,53 @@ test_topdown_weak_groups() {
   echo "Topdown weak groups test [Success]"
 }
 
+test_cputype() {
+  # Test --cputype argument.
+  echo "cputype test"
+
+  # Bogus PMU should fail.
+  if perf stat --cputype="123" -e instructions true > /dev/null 2>&1
+  then
+    echo "cputype test [Bogus PMU didn't fail]"
+    err=1
+    return
+  fi
+
+  # Find a known PMU for cputype.
+  pmu=""
+  for i in cpu cpu_atom armv8_pmuv3_0
+  do
+    if test -d "/sys/devices/$i"
+    then
+      pmu="$i"
+      break
+    fi
+    if perf stat -e "$i/instructions/" true > /dev/null 2>&1
+    then
+      pmu="$i"
+      break
+    fi
+  done
+  if test "x$pmu" = "x"
+  then
+    echo "cputype test [Skipped known PMU not found]"
+    return
+  fi
+
+  # Test running with cputype produces output.
+  if ! perf stat --cputype="$pmu" -e instructions true 2>&1 | grep -E -q "instructions"
+  then
+    echo "cputype test [Failed count missed with given filter]"
+    err=1
+    return
+  fi
+  echo "cputype test [Success]"
+}
+
 test_default_stat
 test_stat_record_report
 test_stat_repeat_weak_groups
 test_topdown_groups
 test_topdown_weak_groups
+test_cputype
 exit $err
-- 
2.40.1.495.gc816e09b53d-goog