Testcase to ensure that using invalid event in generic
event for PERF_TYPE_HARDWARE will fail. Invalid generic
events in power10 are:
- PERF_COUNT_HW_BUS_CYCLES
- PERF_COUNT_HW_STALLED_CYCLES_FRONTEND
- PERF_COUNT_HW_STALLED_CYCLES_BACKEND
- PERF_COUNT_HW_REF_CPU_CYCLES
Invalid generic events in power9 are:
- PERF_COUNT_HW_BUS_CYCLES
- PERF_COUNT_HW_REF_CPU_CYCLES
Testcase does event open for valid and invalid generic
events to ensure event open works for all valid events
and fails for invalid events.
Signed-off-by: Athira Rajeev <atraj...@linux.vnet.ibm.com>
---
.../powerpc/pmu/event_code_tests/Makefile | 2 +-
.../generic_events_valid_test.c | 130 ++++++++++++++++++
2 files changed, 131 insertions(+), 1 deletion(-)
create mode 100644
tools/testing/selftests/powerpc/pmu/event_code_tests/generic_events_valid_test.c
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/Makefile
b/tools/testing/selftests/powerpc/pmu/event_code_tests/Makefile
index 50bcc036dddf..0d56f1ef530f 100644
--- a/tools/testing/selftests/powerpc/pmu/event_code_tests/Makefile
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/Makefile
@@ -4,7 +4,7 @@ CFLAGS += -m64
TEST_GEN_PROGS := group_constraint_pmc56_test
group_pmc56_exclude_constraints_test group_constraint_pmc_count_test \
group_constraint_repeat_test group_constraint_radix_scope_qual_test
reserved_bits_mmcra_sample_elig_mode_test \
group_constraint_mmcra_sample_test invalid_event_code_test
reserved_bits_mmcra_thresh_ctl_test \
- blacklisted_events_test event_alternatives_tests_p9
event_alternatives_tests_p10
+ blacklisted_events_test event_alternatives_tests_p9
event_alternatives_tests_p10 generic_events_valid_test
top_srcdir = ../../../../../..
include ../../../lib.mk
diff --git
a/tools/testing/selftests/powerpc/pmu/event_code_tests/generic_events_valid_test.c
b/tools/testing/selftests/powerpc/pmu/event_code_tests/generic_events_valid_test.c
new file mode 100644
index 000000000000..0d237c15d3f2
--- /dev/null
+++
b/tools/testing/selftests/powerpc/pmu/event_code_tests/generic_events_valid_test.c
@@ -0,0 +1,130 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Athira Rajeev, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <sys/prctl.h>
+#include <limits.h>
+#include "../event.h"
+#include "../sampling_tests/misc.h"
+
+/*
+ * Testcase to ensure that using invalid event in generic
+ * event for PERF_TYPE_HARDWARE should fail
+ */
+
+static int generic_events_valid_test(void)
+{
+ struct event event;
+
+ /* Check for platform support for the test */
+ SKIP_IF(platform_check_for_tests());
+
+ /* generic events is different in compat_mode */
+ SKIP_IF(check_for_generic_compat_pmu());
+
+ /*
+ * Invalid generic events in power10:
+ * - PERF_COUNT_HW_BUS_CYCLES
+ * - PERF_COUNT_HW_STALLED_CYCLES_FRONTEND
+ * - PERF_COUNT_HW_STALLED_CYCLES_BACKEND
+ * - PERF_COUNT_HW_REF_CPU_CYCLES
+ */
+ if (PVR_VER(mfspr(SPRN_PVR)) == POWER10) {
+ event_init_opts(&event, PERF_COUNT_HW_CPU_CYCLES,
PERF_TYPE_HARDWARE, "event");
+ FAIL_IF(event_open(&event));
+ event_close(&event);
+
+ event_init_opts(&event, PERF_COUNT_HW_INSTRUCTIONS,
+ PERF_TYPE_HARDWARE, "event");
+ FAIL_IF(event_open(&event));
+ event_close(&event);
+
+ event_init_opts(&event, PERF_COUNT_HW_CACHE_REFERENCES,
+ PERF_TYPE_HARDWARE, "event");
+ FAIL_IF(event_open(&event));
+ event_close(&event);
+
+ event_init_opts(&event, PERF_COUNT_HW_CACHE_MISSES,
PERF_TYPE_HARDWARE, "event");
+ FAIL_IF(event_open(&event));
+ event_close(&event);
+
+ event_init_opts(&event, PERF_COUNT_HW_BRANCH_INSTRUCTIONS,
+ PERF_TYPE_HARDWARE, "event");
+ FAIL_IF(event_open(&event));
+ event_close(&event);
+
+ event_init_opts(&event, PERF_COUNT_HW_BRANCH_MISSES,
PERF_TYPE_HARDWARE, "event");
+ FAIL_IF(event_open(&event));
+ event_close(&event);
+
+ event_init_opts(&event, PERF_COUNT_HW_BUS_CYCLES,
PERF_TYPE_HARDWARE, "event");
+ FAIL_IF(!event_open(&event));
+
+ event_init_opts(&event, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND,
+ PERF_TYPE_HARDWARE, "event");
+ FAIL_IF(!event_open(&event));
+
+ event_init_opts(&event, PERF_COUNT_HW_STALLED_CYCLES_BACKEND,
+ PERF_TYPE_HARDWARE, "event");
+ FAIL_IF(!event_open(&event));
+
+ event_init_opts(&event, PERF_COUNT_HW_REF_CPU_CYCLES,
PERF_TYPE_HARDWARE, "event");
+ FAIL_IF(!event_open(&event));
+ } else if (PVR_VER(mfspr(SPRN_PVR)) == POWER9) {
+ /*
+ * Invalid generic events in power9:
+ * - PERF_COUNT_HW_BUS_CYCLES
+ * - PERF_COUNT_HW_REF_CPU_CYCLES
+ */
+ event_init_opts(&event, PERF_COUNT_HW_CPU_CYCLES,
PERF_TYPE_HARDWARE, "event");
+ FAIL_IF(event_open(&event));
+ event_close(&event);
+
+ event_init_opts(&event, PERF_COUNT_HW_INSTRUCTIONS,
PERF_TYPE_HARDWARE, "event");
+ FAIL_IF(event_open(&event));
+ event_close(&event);
+
+ event_init_opts(&event, PERF_COUNT_HW_CACHE_REFERENCES,
+ PERF_TYPE_HARDWARE, "event");
+ FAIL_IF(event_open(&event));
+ event_close(&event);
+
+ event_init_opts(&event, PERF_COUNT_HW_CACHE_MISSES,
PERF_TYPE_HARDWARE, "event");
+ FAIL_IF(event_open(&event));
+ event_close(&event);
+
+ event_init_opts(&event, PERF_COUNT_HW_BRANCH_INSTRUCTIONS,
+ PERF_TYPE_HARDWARE, "event");
+ FAIL_IF(event_open(&event));
+ event_close(&event);
+
+ event_init_opts(&event, PERF_COUNT_HW_BRANCH_MISSES,
PERF_TYPE_HARDWARE, "event");
+ FAIL_IF(event_open(&event));
+ event_close(&event);
+
+ event_init_opts(&event, PERF_COUNT_HW_BUS_CYCLES,
PERF_TYPE_HARDWARE, "event");
+ FAIL_IF(!event_open(&event));
+
+ event_init_opts(&event, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND,
+ PERF_TYPE_HARDWARE, "event");
+ FAIL_IF(event_open(&event));
+ event_close(&event);
+
+ event_init_opts(&event, PERF_COUNT_HW_STALLED_CYCLES_BACKEND,
+ PERF_TYPE_HARDWARE, "event");
+ FAIL_IF(event_open(&event));
+ event_close(&event);
+
+ event_init_opts(&event, PERF_COUNT_HW_REF_CPU_CYCLES,
PERF_TYPE_HARDWARE, "event");
+ FAIL_IF(!event_open(&event));
+ }
+
+ return 0;
+}
+
+int main(void)
+{
+ return test_harness(generic_events_valid_test,
"generic_events_valid_test");
+}
--
2.35.1
