From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- tools/perf/tests/pfm.c | 194 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 194 insertions(+) create mode 100644 tools/perf/tests/pfm.c (limited to 'tools/perf/tests/pfm.c') diff --git a/tools/perf/tests/pfm.c b/tools/perf/tests/pfm.c new file mode 100644 index 000000000..71b76deb1 --- /dev/null +++ b/tools/perf/tests/pfm.c @@ -0,0 +1,194 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Test support for libpfm4 event encodings. + * + * Copyright 2020 Google LLC. + */ +#include "tests.h" +#include "util/debug.h" +#include "util/evlist.h" +#include "util/pfm.h" + +#include + +#ifdef HAVE_LIBPFM +static int count_pfm_events(struct perf_evlist *evlist) +{ + struct perf_evsel *evsel; + int count = 0; + + perf_evlist__for_each_entry(evlist, evsel) { + count++; + } + return count; +} + +static int test__pfm_events(struct test_suite *test __maybe_unused, + int subtest __maybe_unused) +{ + struct evlist *evlist; + struct option opt; + size_t i; + const struct { + const char *events; + int nr_events; + } table[] = { + { + .events = "", + .nr_events = 0, + }, + { + .events = "instructions", + .nr_events = 1, + }, + { + .events = "instructions,cycles", + .nr_events = 2, + }, + { + .events = "stereolab", + .nr_events = 0, + }, + { + .events = "instructions,instructions", + .nr_events = 2, + }, + { + .events = "stereolab,instructions", + .nr_events = 0, + }, + { + .events = "instructions,stereolab", + .nr_events = 1, + }, + }; + + for (i = 0; i < ARRAY_SIZE(table); i++) { + evlist = evlist__new(); + if (evlist == NULL) + return -ENOMEM; + + opt.value = evlist; + parse_libpfm_events_option(&opt, + table[i].events, + 0); + TEST_ASSERT_EQUAL(table[i].events, + count_pfm_events(&evlist->core), + table[i].nr_events); + TEST_ASSERT_EQUAL(table[i].events, + evlist->core.nr_groups, + 0); + + evlist__delete(evlist); + } + return 0; +} + +static int test__pfm_group(struct test_suite *test __maybe_unused, + int subtest __maybe_unused) +{ + struct evlist *evlist; + struct option opt; + size_t i; + const struct { + const char *events; + int nr_events; + int nr_groups; + } table[] = { + { + .events = "{},", + .nr_events = 0, + .nr_groups = 0, + }, + { + .events = "{instructions}", + .nr_events = 1, + .nr_groups = 1, + }, + { + .events = "{instructions},{}", + .nr_events = 1, + .nr_groups = 1, + }, + { + .events = "{},{instructions}", + .nr_events = 1, + .nr_groups = 1, + }, + { + .events = "{instructions},{instructions}", + .nr_events = 2, + .nr_groups = 2, + }, + { + .events = "{instructions,cycles},{instructions,cycles}", + .nr_events = 4, + .nr_groups = 2, + }, + { + .events = "{stereolab}", + .nr_events = 0, + .nr_groups = 0, + }, + { + .events = + "{instructions,cycles},{instructions,stereolab}", + .nr_events = 3, + .nr_groups = 1, + }, + { + .events = "instructions}", + .nr_events = 1, + .nr_groups = 0, + }, + { + .events = "{{instructions}}", + .nr_events = 0, + .nr_groups = 0, + }, + }; + + for (i = 0; i < ARRAY_SIZE(table); i++) { + evlist = evlist__new(); + if (evlist == NULL) + return -ENOMEM; + + opt.value = evlist; + parse_libpfm_events_option(&opt, + table[i].events, + 0); + TEST_ASSERT_EQUAL(table[i].events, + count_pfm_events(&evlist->core), + table[i].nr_events); + TEST_ASSERT_EQUAL(table[i].events, + evlist->core.nr_groups, + table[i].nr_groups); + + evlist__delete(evlist); + } + return 0; +} +#else +static int test__pfm_events(struct test_suite *test __maybe_unused, + int subtest __maybe_unused) +{ + return TEST_SKIP; +} + +static int test__pfm_group(struct test_suite *test __maybe_unused, + int subtest __maybe_unused) +{ + return TEST_SKIP; +} +#endif + +static struct test_case pfm_tests[] = { + TEST_CASE_REASON("test of individual --pfm-events", pfm_events, "not compiled in"), + TEST_CASE_REASON("test groups of --pfm-events", pfm_group, "not compiled in"), + { .name = NULL, } +}; + +struct test_suite suite__pfm = { + .desc = "Test libpfm4 support", + .test_cases = pfm_tests, +}; -- cgit v1.2.3