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-rw-r--r--tools/perf/tests/pmu-events.c1063
1 files changed, 1063 insertions, 0 deletions
diff --git a/tools/perf/tests/pmu-events.c b/tools/perf/tests/pmu-events.c
new file mode 100644
index 000000000..097e05c79
--- /dev/null
+++ b/tools/perf/tests/pmu-events.c
@@ -0,0 +1,1063 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "math.h"
+#include "parse-events.h"
+#include "pmu.h"
+#include "tests.h"
+#include <errno.h>
+#include <stdio.h>
+#include <linux/kernel.h>
+#include <linux/zalloc.h>
+#include "debug.h"
+#include "../pmu-events/pmu-events.h"
+#include <perf/evlist.h>
+#include "util/evlist.h"
+#include "util/expr.h"
+#include "util/parse-events.h"
+#include "metricgroup.h"
+#include "stat.h"
+
+struct perf_pmu_test_event {
+ /* used for matching against events from generated pmu-events.c */
+ struct pmu_event event;
+
+ /* used for matching against event aliases */
+ /* extra events for aliases */
+ const char *alias_str;
+
+ /*
+ * Note: For when PublicDescription does not exist in the JSON, we
+ * will have no long_desc in pmu_event.long_desc, but long_desc may
+ * be set in the alias.
+ */
+ const char *alias_long_desc;
+
+ /* PMU which we should match against */
+ const char *matching_pmu;
+};
+
+struct perf_pmu_test_pmu {
+ struct perf_pmu pmu;
+ struct perf_pmu_test_event const *aliases[10];
+};
+
+static const struct perf_pmu_test_event bp_l1_btb_correct = {
+ .event = {
+ .name = "bp_l1_btb_correct",
+ .event = "event=0x8a",
+ .desc = "L1 BTB Correction",
+ .topic = "branch",
+ },
+ .alias_str = "event=0x8a",
+ .alias_long_desc = "L1 BTB Correction",
+};
+
+static const struct perf_pmu_test_event bp_l2_btb_correct = {
+ .event = {
+ .name = "bp_l2_btb_correct",
+ .event = "event=0x8b",
+ .desc = "L2 BTB Correction",
+ .topic = "branch",
+ },
+ .alias_str = "event=0x8b",
+ .alias_long_desc = "L2 BTB Correction",
+};
+
+static const struct perf_pmu_test_event segment_reg_loads_any = {
+ .event = {
+ .name = "segment_reg_loads.any",
+ .event = "event=0x6,period=200000,umask=0x80",
+ .desc = "Number of segment register loads",
+ .topic = "other",
+ },
+ .alias_str = "event=0x6,period=0x30d40,umask=0x80",
+ .alias_long_desc = "Number of segment register loads",
+};
+
+static const struct perf_pmu_test_event dispatch_blocked_any = {
+ .event = {
+ .name = "dispatch_blocked.any",
+ .event = "event=0x9,period=200000,umask=0x20",
+ .desc = "Memory cluster signals to block micro-op dispatch for any reason",
+ .topic = "other",
+ },
+ .alias_str = "event=0x9,period=0x30d40,umask=0x20",
+ .alias_long_desc = "Memory cluster signals to block micro-op dispatch for any reason",
+};
+
+static const struct perf_pmu_test_event eist_trans = {
+ .event = {
+ .name = "eist_trans",
+ .event = "event=0x3a,period=200000,umask=0x0",
+ .desc = "Number of Enhanced Intel SpeedStep(R) Technology (EIST) transitions",
+ .topic = "other",
+ },
+ .alias_str = "event=0x3a,period=0x30d40,umask=0",
+ .alias_long_desc = "Number of Enhanced Intel SpeedStep(R) Technology (EIST) transitions",
+};
+
+static const struct perf_pmu_test_event l3_cache_rd = {
+ .event = {
+ .name = "l3_cache_rd",
+ .event = "event=0x40",
+ .desc = "L3 cache access, read",
+ .long_desc = "Attributable Level 3 cache access, read",
+ .topic = "cache",
+ },
+ .alias_str = "event=0x40",
+ .alias_long_desc = "Attributable Level 3 cache access, read",
+};
+
+static const struct perf_pmu_test_event *core_events[] = {
+ &bp_l1_btb_correct,
+ &bp_l2_btb_correct,
+ &segment_reg_loads_any,
+ &dispatch_blocked_any,
+ &eist_trans,
+ &l3_cache_rd,
+ NULL
+};
+
+static const struct perf_pmu_test_event uncore_hisi_ddrc_flux_wcmd = {
+ .event = {
+ .name = "uncore_hisi_ddrc.flux_wcmd",
+ .event = "event=0x2",
+ .desc = "DDRC write commands. Unit: hisi_sccl,ddrc ",
+ .topic = "uncore",
+ .long_desc = "DDRC write commands",
+ .pmu = "hisi_sccl,ddrc",
+ },
+ .alias_str = "event=0x2",
+ .alias_long_desc = "DDRC write commands",
+ .matching_pmu = "hisi_sccl1_ddrc2",
+};
+
+static const struct perf_pmu_test_event unc_cbo_xsnp_response_miss_eviction = {
+ .event = {
+ .name = "unc_cbo_xsnp_response.miss_eviction",
+ .event = "event=0x22,umask=0x81",
+ .desc = "A cross-core snoop resulted from L3 Eviction which misses in some processor core. Unit: uncore_cbox ",
+ .topic = "uncore",
+ .long_desc = "A cross-core snoop resulted from L3 Eviction which misses in some processor core",
+ .pmu = "uncore_cbox",
+ },
+ .alias_str = "event=0x22,umask=0x81",
+ .alias_long_desc = "A cross-core snoop resulted from L3 Eviction which misses in some processor core",
+ .matching_pmu = "uncore_cbox_0",
+};
+
+static const struct perf_pmu_test_event uncore_hyphen = {
+ .event = {
+ .name = "event-hyphen",
+ .event = "event=0xe0,umask=0x00",
+ .desc = "UNC_CBO_HYPHEN. Unit: uncore_cbox ",
+ .topic = "uncore",
+ .long_desc = "UNC_CBO_HYPHEN",
+ .pmu = "uncore_cbox",
+ },
+ .alias_str = "event=0xe0,umask=0",
+ .alias_long_desc = "UNC_CBO_HYPHEN",
+ .matching_pmu = "uncore_cbox_0",
+};
+
+static const struct perf_pmu_test_event uncore_two_hyph = {
+ .event = {
+ .name = "event-two-hyph",
+ .event = "event=0xc0,umask=0x00",
+ .desc = "UNC_CBO_TWO_HYPH. Unit: uncore_cbox ",
+ .topic = "uncore",
+ .long_desc = "UNC_CBO_TWO_HYPH",
+ .pmu = "uncore_cbox",
+ },
+ .alias_str = "event=0xc0,umask=0",
+ .alias_long_desc = "UNC_CBO_TWO_HYPH",
+ .matching_pmu = "uncore_cbox_0",
+};
+
+static const struct perf_pmu_test_event uncore_hisi_l3c_rd_hit_cpipe = {
+ .event = {
+ .name = "uncore_hisi_l3c.rd_hit_cpipe",
+ .event = "event=0x7",
+ .desc = "Total read hits. Unit: hisi_sccl,l3c ",
+ .topic = "uncore",
+ .long_desc = "Total read hits",
+ .pmu = "hisi_sccl,l3c",
+ },
+ .alias_str = "event=0x7",
+ .alias_long_desc = "Total read hits",
+ .matching_pmu = "hisi_sccl3_l3c7",
+};
+
+static const struct perf_pmu_test_event uncore_imc_free_running_cache_miss = {
+ .event = {
+ .name = "uncore_imc_free_running.cache_miss",
+ .event = "event=0x12",
+ .desc = "Total cache misses. Unit: uncore_imc_free_running ",
+ .topic = "uncore",
+ .long_desc = "Total cache misses",
+ .pmu = "uncore_imc_free_running",
+ },
+ .alias_str = "event=0x12",
+ .alias_long_desc = "Total cache misses",
+ .matching_pmu = "uncore_imc_free_running_0",
+};
+
+static const struct perf_pmu_test_event uncore_imc_cache_hits = {
+ .event = {
+ .name = "uncore_imc.cache_hits",
+ .event = "event=0x34",
+ .desc = "Total cache hits. Unit: uncore_imc ",
+ .topic = "uncore",
+ .long_desc = "Total cache hits",
+ .pmu = "uncore_imc",
+ },
+ .alias_str = "event=0x34",
+ .alias_long_desc = "Total cache hits",
+ .matching_pmu = "uncore_imc_0",
+};
+
+static const struct perf_pmu_test_event *uncore_events[] = {
+ &uncore_hisi_ddrc_flux_wcmd,
+ &unc_cbo_xsnp_response_miss_eviction,
+ &uncore_hyphen,
+ &uncore_two_hyph,
+ &uncore_hisi_l3c_rd_hit_cpipe,
+ &uncore_imc_free_running_cache_miss,
+ &uncore_imc_cache_hits,
+ NULL
+};
+
+static const struct perf_pmu_test_event sys_ddr_pmu_write_cycles = {
+ .event = {
+ .name = "sys_ddr_pmu.write_cycles",
+ .event = "event=0x2b",
+ .desc = "ddr write-cycles event. Unit: uncore_sys_ddr_pmu ",
+ .topic = "uncore",
+ .pmu = "uncore_sys_ddr_pmu",
+ .compat = "v8",
+ },
+ .alias_str = "event=0x2b",
+ .alias_long_desc = "ddr write-cycles event. Unit: uncore_sys_ddr_pmu ",
+ .matching_pmu = "uncore_sys_ddr_pmu",
+};
+
+static const struct perf_pmu_test_event sys_ccn_pmu_read_cycles = {
+ .event = {
+ .name = "sys_ccn_pmu.read_cycles",
+ .event = "config=0x2c",
+ .desc = "ccn read-cycles event. Unit: uncore_sys_ccn_pmu ",
+ .topic = "uncore",
+ .pmu = "uncore_sys_ccn_pmu",
+ .compat = "0x01",
+ },
+ .alias_str = "config=0x2c",
+ .alias_long_desc = "ccn read-cycles event. Unit: uncore_sys_ccn_pmu ",
+ .matching_pmu = "uncore_sys_ccn_pmu",
+};
+
+static const struct perf_pmu_test_event *sys_events[] = {
+ &sys_ddr_pmu_write_cycles,
+ &sys_ccn_pmu_read_cycles,
+ NULL
+};
+
+static bool is_same(const char *reference, const char *test)
+{
+ if (!reference && !test)
+ return true;
+
+ if (reference && !test)
+ return false;
+
+ if (!reference && test)
+ return false;
+
+ return !strcmp(reference, test);
+}
+
+static int compare_pmu_events(const struct pmu_event *e1, const struct pmu_event *e2)
+{
+ if (!is_same(e1->name, e2->name)) {
+ pr_debug2("testing event e1 %s: mismatched name string, %s vs %s\n",
+ e1->name, e1->name, e2->name);
+ return -1;
+ }
+
+ if (!is_same(e1->compat, e2->compat)) {
+ pr_debug2("testing event e1 %s: mismatched compat string, %s vs %s\n",
+ e1->name, e1->compat, e2->compat);
+ return -1;
+ }
+
+ if (!is_same(e1->event, e2->event)) {
+ pr_debug2("testing event e1 %s: mismatched event, %s vs %s\n",
+ e1->name, e1->event, e2->event);
+ return -1;
+ }
+
+ if (!is_same(e1->desc, e2->desc)) {
+ pr_debug2("testing event e1 %s: mismatched desc, %s vs %s\n",
+ e1->name, e1->desc, e2->desc);
+ return -1;
+ }
+
+ if (!is_same(e1->topic, e2->topic)) {
+ pr_debug2("testing event e1 %s: mismatched topic, %s vs %s\n",
+ e1->name, e1->topic, e2->topic);
+ return -1;
+ }
+
+ if (!is_same(e1->long_desc, e2->long_desc)) {
+ pr_debug2("testing event e1 %s: mismatched long_desc, %s vs %s\n",
+ e1->name, e1->long_desc, e2->long_desc);
+ return -1;
+ }
+
+ if (!is_same(e1->pmu, e2->pmu)) {
+ pr_debug2("testing event e1 %s: mismatched pmu string, %s vs %s\n",
+ e1->name, e1->pmu, e2->pmu);
+ return -1;
+ }
+
+ if (!is_same(e1->unit, e2->unit)) {
+ pr_debug2("testing event e1 %s: mismatched unit, %s vs %s\n",
+ e1->name, e1->unit, e2->unit);
+ return -1;
+ }
+
+ if (!is_same(e1->perpkg, e2->perpkg)) {
+ pr_debug2("testing event e1 %s: mismatched perpkg, %s vs %s\n",
+ e1->name, e1->perpkg, e2->perpkg);
+ return -1;
+ }
+
+ if (!is_same(e1->aggr_mode, e2->aggr_mode)) {
+ pr_debug2("testing event e1 %s: mismatched aggr_mode, %s vs %s\n",
+ e1->name, e1->aggr_mode, e2->aggr_mode);
+ return -1;
+ }
+
+ if (!is_same(e1->metric_expr, e2->metric_expr)) {
+ pr_debug2("testing event e1 %s: mismatched metric_expr, %s vs %s\n",
+ e1->name, e1->metric_expr, e2->metric_expr);
+ return -1;
+ }
+
+ if (!is_same(e1->metric_name, e2->metric_name)) {
+ pr_debug2("testing event e1 %s: mismatched metric_name, %s vs %s\n",
+ e1->name, e1->metric_name, e2->metric_name);
+ return -1;
+ }
+
+ if (!is_same(e1->metric_group, e2->metric_group)) {
+ pr_debug2("testing event e1 %s: mismatched metric_group, %s vs %s\n",
+ e1->name, e1->metric_group, e2->metric_group);
+ return -1;
+ }
+
+ if (!is_same(e1->deprecated, e2->deprecated)) {
+ pr_debug2("testing event e1 %s: mismatched deprecated, %s vs %s\n",
+ e1->name, e1->deprecated, e2->deprecated);
+ return -1;
+ }
+
+ if (!is_same(e1->metric_constraint, e2->metric_constraint)) {
+ pr_debug2("testing event e1 %s: mismatched metric_constant, %s vs %s\n",
+ e1->name, e1->metric_constraint, e2->metric_constraint);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int compare_alias_to_test_event(struct perf_pmu_alias *alias,
+ struct perf_pmu_test_event const *test_event,
+ char const *pmu_name)
+{
+ struct pmu_event const *event = &test_event->event;
+
+ /* An alias was found, ensure everything is in order */
+ if (!is_same(alias->name, event->name)) {
+ pr_debug("testing aliases PMU %s: mismatched name, %s vs %s\n",
+ pmu_name, alias->name, event->name);
+ return -1;
+ }
+
+ if (!is_same(alias->desc, event->desc)) {
+ pr_debug("testing aliases PMU %s: mismatched desc, %s vs %s\n",
+ pmu_name, alias->desc, event->desc);
+ return -1;
+ }
+
+ if (!is_same(alias->long_desc, test_event->alias_long_desc)) {
+ pr_debug("testing aliases PMU %s: mismatched long_desc, %s vs %s\n",
+ pmu_name, alias->long_desc,
+ test_event->alias_long_desc);
+ return -1;
+ }
+
+ if (!is_same(alias->topic, event->topic)) {
+ pr_debug("testing aliases PMU %s: mismatched topic, %s vs %s\n",
+ pmu_name, alias->topic, event->topic);
+ return -1;
+ }
+
+ if (!is_same(alias->str, test_event->alias_str)) {
+ pr_debug("testing aliases PMU %s: mismatched str, %s vs %s\n",
+ pmu_name, alias->str, test_event->alias_str);
+ return -1;
+ }
+
+ if (!is_same(alias->long_desc, test_event->alias_long_desc)) {
+ pr_debug("testing aliases PMU %s: mismatched long desc, %s vs %s\n",
+ pmu_name, alias->str, test_event->alias_long_desc);
+ return -1;
+ }
+
+
+ if (!is_same(alias->pmu_name, test_event->event.pmu)) {
+ pr_debug("testing aliases PMU %s: mismatched pmu_name, %s vs %s\n",
+ pmu_name, alias->pmu_name, test_event->event.pmu);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int test__pmu_event_table_core_callback(const struct pmu_event *pe,
+ const struct pmu_events_table *table __maybe_unused,
+ void *data)
+{
+ int *map_events = data;
+ struct perf_pmu_test_event const **test_event_table;
+ bool found = false;
+
+ if (!pe->name)
+ return 0;
+
+ if (pe->pmu)
+ test_event_table = &uncore_events[0];
+ else
+ test_event_table = &core_events[0];
+
+ for (; *test_event_table; test_event_table++) {
+ struct perf_pmu_test_event const *test_event = *test_event_table;
+ struct pmu_event const *event = &test_event->event;
+
+ if (strcmp(pe->name, event->name))
+ continue;
+ found = true;
+ (*map_events)++;
+
+ if (compare_pmu_events(pe, event))
+ return -1;
+
+ pr_debug("testing event table %s: pass\n", pe->name);
+ }
+ if (!found) {
+ pr_err("testing event table: could not find event %s\n", pe->name);
+ return -1;
+ }
+ return 0;
+}
+
+static int test__pmu_event_table_sys_callback(const struct pmu_event *pe,
+ const struct pmu_events_table *table __maybe_unused,
+ void *data)
+{
+ int *map_events = data;
+ struct perf_pmu_test_event const **test_event_table;
+ bool found = false;
+
+ test_event_table = &sys_events[0];
+
+ for (; *test_event_table; test_event_table++) {
+ struct perf_pmu_test_event const *test_event = *test_event_table;
+ struct pmu_event const *event = &test_event->event;
+
+ if (strcmp(pe->name, event->name))
+ continue;
+ found = true;
+ (*map_events)++;
+
+ if (compare_pmu_events(pe, event))
+ return TEST_FAIL;
+
+ pr_debug("testing sys event table %s: pass\n", pe->name);
+ }
+ if (!found) {
+ pr_debug("testing sys event table: could not find event %s\n", pe->name);
+ return TEST_FAIL;
+ }
+ return TEST_OK;
+}
+
+/* Verify generated events from pmu-events.c are as expected */
+static int test__pmu_event_table(struct test_suite *test __maybe_unused,
+ int subtest __maybe_unused)
+{
+ const struct pmu_events_table *sys_event_table = find_sys_events_table("pme_test_soc_sys");
+ const struct pmu_events_table *table = find_core_events_table("testarch", "testcpu");
+ int map_events = 0, expected_events, err;
+
+ /* ignore 3x sentinels */
+ expected_events = ARRAY_SIZE(core_events) +
+ ARRAY_SIZE(uncore_events) +
+ ARRAY_SIZE(sys_events) - 3;
+
+ if (!table || !sys_event_table)
+ return -1;
+
+ err = pmu_events_table_for_each_event(table, test__pmu_event_table_core_callback,
+ &map_events);
+ if (err)
+ return err;
+
+ err = pmu_events_table_for_each_event(sys_event_table, test__pmu_event_table_sys_callback,
+ &map_events);
+ if (err)
+ return err;
+
+ if (map_events != expected_events) {
+ pr_err("testing event table: found %d, but expected %d\n",
+ map_events, expected_events);
+ return TEST_FAIL;
+ }
+
+ return 0;
+}
+
+static struct perf_pmu_alias *find_alias(const char *test_event, struct list_head *aliases)
+{
+ struct perf_pmu_alias *alias;
+
+ list_for_each_entry(alias, aliases, list)
+ if (!strcmp(test_event, alias->name))
+ return alias;
+
+ return NULL;
+}
+
+/* Verify aliases are as expected */
+static int __test_core_pmu_event_aliases(char *pmu_name, int *count)
+{
+ struct perf_pmu_test_event const **test_event_table;
+ struct perf_pmu *pmu;
+ LIST_HEAD(aliases);
+ int res = 0;
+ const struct pmu_events_table *table = find_core_events_table("testarch", "testcpu");
+ struct perf_pmu_alias *a, *tmp;
+
+ if (!table)
+ return -1;
+
+ test_event_table = &core_events[0];
+
+ pmu = zalloc(sizeof(*pmu));
+ if (!pmu)
+ return -1;
+
+ pmu->name = pmu_name;
+
+ pmu_add_cpu_aliases_table(&aliases, pmu, table);
+
+ for (; *test_event_table; test_event_table++) {
+ struct perf_pmu_test_event const *test_event = *test_event_table;
+ struct pmu_event const *event = &test_event->event;
+ struct perf_pmu_alias *alias = find_alias(event->name, &aliases);
+
+ if (!alias) {
+ pr_debug("testing aliases core PMU %s: no alias, alias_table->name=%s\n",
+ pmu_name, event->name);
+ res = -1;
+ break;
+ }
+
+ if (compare_alias_to_test_event(alias, test_event, pmu_name)) {
+ res = -1;
+ break;
+ }
+
+ (*count)++;
+ pr_debug2("testing aliases core PMU %s: matched event %s\n",
+ pmu_name, alias->name);
+ }
+
+ list_for_each_entry_safe(a, tmp, &aliases, list) {
+ list_del(&a->list);
+ perf_pmu_free_alias(a);
+ }
+ free(pmu);
+ return res;
+}
+
+static int __test_uncore_pmu_event_aliases(struct perf_pmu_test_pmu *test_pmu)
+{
+ int alias_count = 0, to_match_count = 0, matched_count = 0;
+ struct perf_pmu_test_event const **table;
+ struct perf_pmu *pmu = &test_pmu->pmu;
+ const char *pmu_name = pmu->name;
+ struct perf_pmu_alias *a, *tmp, *alias;
+ const struct pmu_events_table *events_table;
+ LIST_HEAD(aliases);
+ int res = 0;
+
+ events_table = find_core_events_table("testarch", "testcpu");
+ if (!events_table)
+ return -1;
+ pmu_add_cpu_aliases_table(&aliases, pmu, events_table);
+ pmu_add_sys_aliases(&aliases, pmu);
+
+ /* Count how many aliases we generated */
+ list_for_each_entry(alias, &aliases, list)
+ alias_count++;
+
+ /* Count how many aliases we expect from the known table */
+ for (table = &test_pmu->aliases[0]; *table; table++)
+ to_match_count++;
+
+ if (alias_count != to_match_count) {
+ pr_debug("testing aliases uncore PMU %s: mismatch expected aliases (%d) vs found (%d)\n",
+ pmu_name, to_match_count, alias_count);
+ res = -1;
+ goto out;
+ }
+
+ list_for_each_entry(alias, &aliases, list) {
+ bool matched = false;
+
+ for (table = &test_pmu->aliases[0]; *table; table++) {
+ struct perf_pmu_test_event const *test_event = *table;
+ struct pmu_event const *event = &test_event->event;
+
+ if (!strcmp(event->name, alias->name)) {
+ if (compare_alias_to_test_event(alias,
+ test_event,
+ pmu_name)) {
+ continue;
+ }
+ matched = true;
+ matched_count++;
+ }
+ }
+
+ if (matched == false) {
+ pr_debug("testing aliases uncore PMU %s: could not match alias %s\n",
+ pmu_name, alias->name);
+ res = -1;
+ goto out;
+ }
+ }
+
+ if (alias_count != matched_count) {
+ pr_debug("testing aliases uncore PMU %s: mismatch found aliases (%d) vs matched (%d)\n",
+ pmu_name, matched_count, alias_count);
+ res = -1;
+ }
+
+out:
+ list_for_each_entry_safe(a, tmp, &aliases, list) {
+ list_del(&a->list);
+ perf_pmu_free_alias(a);
+ }
+ return res;
+}
+
+static struct perf_pmu_test_pmu test_pmus[] = {
+ {
+ .pmu = {
+ .name = (char *)"hisi_sccl1_ddrc2",
+ .is_uncore = 1,
+ },
+ .aliases = {
+ &uncore_hisi_ddrc_flux_wcmd,
+ },
+ },
+ {
+ .pmu = {
+ .name = (char *)"uncore_cbox_0",
+ .is_uncore = 1,
+ },
+ .aliases = {
+ &unc_cbo_xsnp_response_miss_eviction,
+ &uncore_hyphen,
+ &uncore_two_hyph,
+ },
+ },
+ {
+ .pmu = {
+ .name = (char *)"hisi_sccl3_l3c7",
+ .is_uncore = 1,
+ },
+ .aliases = {
+ &uncore_hisi_l3c_rd_hit_cpipe,
+ },
+ },
+ {
+ .pmu = {
+ .name = (char *)"uncore_imc_free_running_0",
+ .is_uncore = 1,
+ },
+ .aliases = {
+ &uncore_imc_free_running_cache_miss,
+ },
+ },
+ {
+ .pmu = {
+ .name = (char *)"uncore_imc_0",
+ .is_uncore = 1,
+ },
+ .aliases = {
+ &uncore_imc_cache_hits,
+ },
+ },
+ {
+ .pmu = {
+ .name = (char *)"uncore_sys_ddr_pmu0",
+ .is_uncore = 1,
+ .id = (char *)"v8",
+ },
+ .aliases = {
+ &sys_ddr_pmu_write_cycles,
+ },
+ },
+ {
+ .pmu = {
+ .name = (char *)"uncore_sys_ccn_pmu4",
+ .is_uncore = 1,
+ .id = (char *)"0x01",
+ },
+ .aliases = {
+ &sys_ccn_pmu_read_cycles,
+ },
+ },
+};
+
+/* Test that aliases generated are as expected */
+static int test__aliases(struct test_suite *test __maybe_unused,
+ int subtest __maybe_unused)
+{
+ struct perf_pmu *pmu = NULL;
+ unsigned long i;
+
+ while ((pmu = perf_pmu__scan(pmu)) != NULL) {
+ int count = 0;
+
+ if (!is_pmu_core(pmu->name))
+ continue;
+
+ if (list_empty(&pmu->format)) {
+ pr_debug2("skipping testing core PMU %s\n", pmu->name);
+ continue;
+ }
+
+ if (__test_core_pmu_event_aliases(pmu->name, &count)) {
+ pr_debug("testing core PMU %s aliases: failed\n", pmu->name);
+ return -1;
+ }
+
+ if (count == 0) {
+ pr_debug("testing core PMU %s aliases: no events to match\n",
+ pmu->name);
+ return -1;
+ }
+
+ pr_debug("testing core PMU %s aliases: pass\n", pmu->name);
+ }
+
+ for (i = 0; i < ARRAY_SIZE(test_pmus); i++) {
+ int res = __test_uncore_pmu_event_aliases(&test_pmus[i]);
+
+ if (res)
+ return res;
+ }
+
+ return 0;
+}
+
+static bool is_number(const char *str)
+{
+ char *end_ptr;
+ double v;
+
+ errno = 0;
+ v = strtod(str, &end_ptr);
+ (void)v; // We're not interested in this value, only if it is valid
+ return errno == 0 && end_ptr != str;
+}
+
+static int check_parse_id(const char *id, struct parse_events_error *error,
+ struct perf_pmu *fake_pmu)
+{
+ struct evlist *evlist;
+ int ret;
+ char *dup, *cur;
+
+ /* Numbers are always valid. */
+ if (is_number(id))
+ return 0;
+
+ evlist = evlist__new();
+ if (!evlist)
+ return -ENOMEM;
+
+ dup = strdup(id);
+ if (!dup)
+ return -ENOMEM;
+
+ for (cur = strchr(dup, '@') ; cur; cur = strchr(++cur, '@'))
+ *cur = '/';
+
+ if (fake_pmu) {
+ /*
+ * Every call to __parse_events will try to initialize the PMU
+ * state from sysfs and then clean it up at the end. Reset the
+ * PMU events to the test state so that we don't pick up
+ * erroneous prefixes and suffixes.
+ */
+ perf_pmu__test_parse_init();
+ }
+ ret = __parse_events(evlist, dup, error, fake_pmu);
+ free(dup);
+
+ evlist__delete(evlist);
+ return ret;
+}
+
+static int check_parse_fake(const char *id)
+{
+ struct parse_events_error error;
+ int ret;
+
+ parse_events_error__init(&error);
+ ret = check_parse_id(id, &error, &perf_pmu__fake);
+ parse_events_error__exit(&error);
+ return ret;
+}
+
+struct metric {
+ struct list_head list;
+ struct metric_ref metric_ref;
+};
+
+static int test__parsing_callback(const struct pmu_event *pe, const struct pmu_events_table *table,
+ void *data)
+{
+ int *failures = data;
+ int k;
+ struct evlist *evlist;
+ struct perf_cpu_map *cpus;
+ struct runtime_stat st;
+ struct evsel *evsel;
+ struct rblist metric_events = {
+ .nr_entries = 0,
+ };
+ int err = 0;
+
+ if (!pe->metric_expr)
+ return 0;
+
+ pr_debug("Found metric '%s'\n", pe->metric_name);
+ (*failures)++;
+
+ /*
+ * We need to prepare evlist for stat mode running on CPU 0
+ * because that's where all the stats are going to be created.
+ */
+ evlist = evlist__new();
+ if (!evlist)
+ return -ENOMEM;
+
+ cpus = perf_cpu_map__new("0");
+ if (!cpus) {
+ evlist__delete(evlist);
+ return -ENOMEM;
+ }
+
+ perf_evlist__set_maps(&evlist->core, cpus, NULL);
+ runtime_stat__init(&st);
+
+ err = metricgroup__parse_groups_test(evlist, table, pe->metric_name,
+ false, false,
+ &metric_events);
+ if (err) {
+ if (!strcmp(pe->metric_name, "M1") || !strcmp(pe->metric_name, "M2") ||
+ !strcmp(pe->metric_name, "M3")) {
+ (*failures)--;
+ pr_debug("Expected broken metric %s skipping\n", pe->metric_name);
+ err = 0;
+ }
+ goto out_err;
+ }
+
+ err = evlist__alloc_stats(evlist, false);
+ if (err)
+ goto out_err;
+ /*
+ * Add all ids with a made up value. The value may trigger divide by
+ * zero when subtracted and so try to make them unique.
+ */
+ k = 1;
+ perf_stat__reset_shadow_stats();
+ evlist__for_each_entry(evlist, evsel) {
+ perf_stat__update_shadow_stats(evsel, k, 0, &st);
+ if (!strcmp(evsel->name, "duration_time"))
+ update_stats(&walltime_nsecs_stats, k);
+ k++;
+ }
+ evlist__for_each_entry(evlist, evsel) {
+ struct metric_event *me = metricgroup__lookup(&metric_events, evsel, false);
+
+ if (me != NULL) {
+ struct metric_expr *mexp;
+
+ list_for_each_entry (mexp, &me->head, nd) {
+ if (strcmp(mexp->metric_name, pe->metric_name))
+ continue;
+ pr_debug("Result %f\n", test_generic_metric(mexp, 0, &st));
+ err = 0;
+ (*failures)--;
+ goto out_err;
+ }
+ }
+ }
+ pr_debug("Didn't find parsed metric %s", pe->metric_name);
+ err = 1;
+out_err:
+ if (err)
+ pr_debug("Broken metric %s\n", pe->metric_name);
+
+ /* ... cleanup. */
+ metricgroup__rblist_exit(&metric_events);
+ runtime_stat__exit(&st);
+ evlist__free_stats(evlist);
+ perf_cpu_map__put(cpus);
+ evlist__delete(evlist);
+ return err;
+}
+
+static int test__parsing(struct test_suite *test __maybe_unused,
+ int subtest __maybe_unused)
+{
+ int failures = 0;
+
+ pmu_for_each_core_event(test__parsing_callback, &failures);
+ pmu_for_each_sys_event(test__parsing_callback, &failures);
+
+ return failures == 0 ? TEST_OK : TEST_FAIL;
+}
+
+struct test_metric {
+ const char *str;
+};
+
+static struct test_metric metrics[] = {
+ { "(unc_p_power_state_occupancy.cores_c0 / unc_p_clockticks) * 100." },
+ { "imx8_ddr0@read\\-cycles@ * 4 * 4", },
+ { "imx8_ddr0@axid\\-read\\,axi_mask\\=0xffff\\,axi_id\\=0x0000@ * 4", },
+ { "(cstate_pkg@c2\\-residency@ / msr@tsc@) * 100", },
+ { "(imx8_ddr0@read\\-cycles@ + imx8_ddr0@write\\-cycles@)", },
+};
+
+static int metric_parse_fake(const char *str)
+{
+ struct expr_parse_ctx *ctx;
+ struct hashmap_entry *cur;
+ double result;
+ int ret = -1;
+ size_t bkt;
+ int i;
+
+ pr_debug("parsing '%s'\n", str);
+
+ ctx = expr__ctx_new();
+ if (!ctx) {
+ pr_debug("expr__ctx_new failed");
+ return TEST_FAIL;
+ }
+ if (expr__find_ids(str, NULL, ctx) < 0) {
+ pr_err("expr__find_ids failed\n");
+ return -1;
+ }
+
+ /*
+ * Add all ids with a made up value. The value may
+ * trigger divide by zero when subtracted and so try to
+ * make them unique.
+ */
+ i = 1;
+ hashmap__for_each_entry(ctx->ids, cur, bkt)
+ expr__add_id_val(ctx, strdup(cur->key), i++);
+
+ hashmap__for_each_entry(ctx->ids, cur, bkt) {
+ if (check_parse_fake(cur->key)) {
+ pr_err("check_parse_fake failed\n");
+ goto out;
+ }
+ }
+
+ ret = 0;
+ if (expr__parse(&result, ctx, str)) {
+ /*
+ * Parsing failed, make numbers go from large to small which can
+ * resolve divide by zero issues.
+ */
+ i = 1024;
+ hashmap__for_each_entry(ctx->ids, cur, bkt)
+ expr__add_id_val(ctx, strdup(cur->key), i--);
+ if (expr__parse(&result, ctx, str)) {
+ pr_err("expr__parse failed\n");
+ ret = -1;
+ }
+ }
+
+out:
+ expr__ctx_free(ctx);
+ return ret;
+}
+
+static int test__parsing_fake_callback(const struct pmu_event *pe,
+ const struct pmu_events_table *table __maybe_unused,
+ void *data __maybe_unused)
+{
+ if (!pe->metric_expr)
+ return 0;
+
+ return metric_parse_fake(pe->metric_expr);
+}
+
+/*
+ * Parse all the metrics for current architecture,
+ * or all defined cpus via the 'fake_pmu'
+ * in parse_events.
+ */
+static int test__parsing_fake(struct test_suite *test __maybe_unused,
+ int subtest __maybe_unused)
+{
+ int err = 0;
+
+ for (size_t i = 0; i < ARRAY_SIZE(metrics); i++) {
+ err = metric_parse_fake(metrics[i].str);
+ if (err)
+ return err;
+ }
+
+ err = pmu_for_each_core_event(test__parsing_fake_callback, NULL);
+ if (err)
+ return err;
+
+ return pmu_for_each_sys_event(test__parsing_fake_callback, NULL);
+}
+
+static struct test_case pmu_events_tests[] = {
+ TEST_CASE("PMU event table sanity", pmu_event_table),
+ TEST_CASE("PMU event map aliases", aliases),
+ TEST_CASE_REASON("Parsing of PMU event table metrics", parsing,
+ "some metrics failed"),
+ TEST_CASE("Parsing of PMU event table metrics with fake PMUs", parsing_fake),
+ { .name = NULL, }
+};
+
+struct test_suite suite__pmu_events = {
+ .desc = "PMU events",
+ .test_cases = pmu_events_tests,
+};
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-04 13:12:20 +0000