// SPDX-License-Identifier: GPL-2.0
#include "math.h"
#include "parse-events.h"
#include "pmu.h"
#include "pmus.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/hashmap.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 = {
.pmu = "default_core",
.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 = {
.pmu = "default_core",
.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 = {
.pmu = "default_core",
.name = "segment_reg_loads.any",
.event = "event=6,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 = {
.pmu = "default_core",
.name = "dispatch_blocked.any",
.event = "event=9,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 = {
.pmu = "default_core",
.name = "eist_trans",
.event = "event=0x3a,period=200000",
.desc = "Number of Enhanced Intel SpeedStep(R) Technology (EIST) transitions",
.topic = "other",
},
.alias_str = "event=0x3a,period=0x30d40",
.alias_long_desc = "Number of Enhanced Intel SpeedStep(R) Technology (EIST) transitions",
};
static const struct perf_pmu_test_event l3_cache_rd = {
.event = {
.pmu = "default_core",
.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=2",
.desc = "DDRC write commands",
.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",
.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",
.desc = "UNC_CBO_HYPHEN",
.topic = "uncore",
.long_desc = "UNC_CBO_HYPHEN",
.pmu = "uncore_cbox",
},
.alias_str = "event=0xe0",
.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",
.desc = "UNC_CBO_TWO_HYPH",
.topic = "uncore",
.long_desc = "UNC_CBO_TWO_HYPH",
.pmu = "uncore_cbox",
},
.alias_str = "event=0xc0",
.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=7",
.desc = "Total read hits",
.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",
.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",
.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",
.topic = "uncore",
.pmu = "uncore_sys_ddr_pmu",
.compat = "v8",
},
.alias_str = "event=0x2b",
.alias_long_desc = "ddr write-cycles event",
.matching_pmu = "uncore_sys_ddr_pmu0",
};
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",
.topic = "uncore",
.pmu = "uncore_sys_ccn_pmu",
.compat = "0x01",
},
.alias_str = "config=0x2c",
.alias_long_desc = "ccn read-cycles event",
.matching_pmu = "uncore_sys_ccn_pmu4",
};
static const struct perf_pmu_test_event sys_cmn_pmu_hnf_cache_miss = {
.event = {
.name = "sys_cmn_pmu.hnf_cache_miss",
.event = "eventid=1,type=5",
.desc = "Counts total cache misses in first lookup result (high priority)",
.topic = "uncore",
.pmu = "uncore_sys_cmn_pmu",
.compat = "(434|436|43c|43a).*",
},
.alias_str = "eventid=0x1,type=0x5",
.alias_long_desc = "Counts total cache misses in first lookup result (high priority)",
.matching_pmu = "uncore_sys_cmn_pmu0",
};
static const struct perf_pmu_test_event *sys_events[] = {
&sys_ddr_pmu_write_cycles,
&sys_ccn_pmu_read_cycles,
&sys_cmn_pmu_hnf_cache_miss,
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 (e1->perpkg != e2->perpkg) {
pr_debug2("testing event e1 %s: mismatched perpkg, %d vs %d\n",
e1->name, e1->perpkg, e2->perpkg);
return -1;
}
if (e1->deprecated != e2->deprecated) {
pr_debug2("testing event e1 %s: mismatched deprecated, %d vs %d\n",
e1->name, e1->deprecated, e2->deprecated);
return -1;
}
return 0;
}
static int compare_alias_to_test_event(struct pmu_event_info *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) &&
!is_same(alias->pmu_name, "default_core")) {
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 (strcmp(pe->pmu, "default_core"))
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("pmu_events__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, /*pmu=*/ NULL,
test__pmu_event_table_core_callback,
&map_events);
if (err)
return err;
err = pmu_events_table__for_each_event(sys_event_table, /*pmu=*/ NULL,
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;
}
struct test_core_pmu_event_aliases_cb_args {
struct perf_pmu_test_event const *test_event;
int *count;
};
static int test_core_pmu_event_aliases_cb(void *state, struct pmu_event_info *alias)
{
struct test_core_pmu_event_aliases_cb_args *args = state;
if (compare_alias_to_test_event(alias, args->test_event, alias->pmu->name))
return -1;
(*args->count)++;
pr_debug2("testing aliases core PMU %s: matched event %s\n",
alias->pmu_name, alias->name);
return 0;
}
/* Verify aliases are as expected */
static int __test_core_pmu_event_aliases(const char *pmu_name, int *count)
{
struct perf_pmu_test_event const **test_event_table;
struct perf_pmu *pmu;
int res = 0;
const struct pmu_events_table *table = find_core_events_table("testarch", "testcpu");
if (!table)
return -1;
test_event_table = &core_events[0];
pmu = zalloc(sizeof(*pmu));
if (!pmu)
return -1;
INIT_LIST_HEAD(&pmu->format);
INIT_LIST_HEAD(&pmu->aliases);
INIT_LIST_HEAD(&pmu->caps);
INIT_LIST_HEAD(&pmu->list);
pmu->name = strdup(pmu_name);
pmu->is_core = true;
pmu->events_table = table;
pmu_add_cpu_aliases_table(pmu, table);
pmu->cpu_aliases_added = true;
pmu->sysfs_aliases_loaded = true;
res = pmu_events_table__find_event(table, pmu, "bp_l1_btb_correct", NULL, NULL);
if (res != 0) {
pr_debug("Missing test event in test architecture");
return res;
}
for (; *test_event_table; test_event_table++) {
struct perf_pmu_test_event test_event = **test_event_table;
struct pmu_event const *event = &test_event.event;
struct test_core_pmu_event_aliases_cb_args args = {
.test_event = &test_event,
.count = count,
};
int err;
test_event.event.pmu = pmu_name;
err = perf_pmu__find_event(pmu, event->name, &args,
test_core_pmu_event_aliases_cb);
if (err)
res = err;
}
perf_pmu__delete(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;
const struct pmu_events_table *events_table;
int res = 0;
events_table = find_core_events_table("testarch", "testcpu");
if (!events_table)
return -1;
pmu->events_table = events_table;
pmu_add_cpu_aliases_table(pmu, events_table);
pmu->cpu_aliases_added = true;
pmu->sysfs_aliases_loaded = true;
pmu_add_sys_aliases(pmu);
/* Count how many aliases we generated */
alias_count = perf_pmu__num_events(pmu);
/* 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);
return -1;
}
for (table = &test_pmu->aliases[0]; *table; table++) {
struct perf_pmu_test_event test_event = **table;
struct pmu_event const *event = &test_event.event;
int err;
struct test_core_pmu_event_aliases_cb_args args = {
.test_event = &test_event,
.count = &matched_count,
};
if (strcmp(pmu_name, test_event.matching_pmu)) {
pr_debug("testing aliases uncore PMU %s: mismatched matching_pmu, %s vs %s\n",
pmu_name, test_event.matching_pmu, pmu_name);
return -1;
}
err = perf_pmu__find_event(pmu, event->name, &args,
test_core_pmu_event_aliases_cb);
if (err) {
res = err;
pr_debug("testing aliases uncore PMU %s: could not match alias %s\n",
pmu_name, event->name);
return -1;
}
}
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;
}
return res;
}
static struct perf_pmu_test_pmu test_pmus[] = {
{
.pmu = {
.name = "hisi_sccl1_ddrc2",
.is_uncore = 1,
},
.aliases = {
&uncore_hisi_ddrc_flux_wcmd,
},
},
{
.pmu = {
.name = "uncore_cbox_0",
.is_uncore = 1,
},
.aliases = {
&unc_cbo_xsnp_response_miss_eviction,
&uncore_hyphen,
&uncore_two_hyph,
},
},
{
.pmu = {
.name = "hisi_sccl3_l3c7",
.is_uncore = 1,
},
.aliases = {
&uncore_hisi_l3c_rd_hit_cpipe,
},
},
{
.pmu = {
.name = "uncore_imc_free_running_0",
.is_uncore = 1,
},
.aliases = {
&uncore_imc_free_running_cache_miss,
},
},
{
.pmu = {
.name = "uncore_imc_0",
.is_uncore = 1,
},
.aliases = {
&uncore_imc_cache_hits,
},
},
{
.pmu = {
.name = "uncore_sys_ddr_pmu0",
.is_uncore = 1,
.id = "v8",
},
.aliases = {
&sys_ddr_pmu_write_cycles,
},
},
{
.pmu = {
.name = "uncore_sys_ccn_pmu4",
.is_uncore = 1,
.id = "0x01",
},
.aliases = {
&sys_ccn_pmu_read_cycles,
},
},
{
.pmu = {
.name = (char *)"uncore_sys_cmn_pmu0",
.is_uncore = 1,
.id = (char *)"43401",
},
.aliases = {
&sys_cmn_pmu_hnf_cache_miss,
},
},
{
.pmu = {
.name = (char *)"uncore_sys_cmn_pmu0",
.is_uncore = 1,
.id = (char *)"43602",
},
.aliases = {
&sys_cmn_pmu_hnf_cache_miss,
},
},
{
.pmu = {
.name = (char *)"uncore_sys_cmn_pmu0",
.is_uncore = 1,
.id = (char *)"43c03",
},
.aliases = {
&sys_cmn_pmu_hnf_cache_miss,
},
},
{
.pmu = {
.name = (char *)"uncore_sys_cmn_pmu0",
.is_uncore = 1,
.id = (char *)"43a01",
},
.aliases = {
&sys_cmn_pmu_hnf_cache_miss,
},
}
};
/* 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_pmus__scan_core(pmu)) != NULL) {
int count = 0;
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;
INIT_LIST_HEAD(&test_pmus[i].pmu.format);
INIT_LIST_HEAD(&test_pmus[i].pmu.aliases);
INIT_LIST_HEAD(&test_pmus[i].pmu.caps);
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 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 = '/';
ret = __parse_events(evlist, dup, /*pmu_filter=*/NULL, error, /*fake_pmu=*/true,
/*warn_if_reordered=*/true, /*fake_tp=*/false);
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);
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_metric *pm,
const struct pmu_metrics_table *table,
void *data)
{
int *failures = data;
int k;
struct evlist *evlist;
struct perf_cpu_map *cpus;
struct evsel *evsel;
struct rblist metric_events = {
.nr_entries = 0,
};
int err = 0;
if (!pm->metric_expr)
return 0;
pr_debug("Found metric '%s'\n", pm->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);
err = metricgroup__parse_groups_test(evlist, table, pm->metric_name, &metric_events);
if (err) {
if (!strcmp(pm->metric_name, "M1") || !strcmp(pm->metric_name, "M2") ||
!strcmp(pm->metric_name, "M3")) {
(*failures)--;
pr_debug("Expected broken metric %s skipping\n", pm->metric_name);
err = 0;
}
goto out_err;
}
err = evlist__alloc_stats(/*config=*/NULL, evlist, /*alloc_raw=*/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;
evlist__alloc_aggr_stats(evlist, 1);
evlist__for_each_entry(evlist, evsel) {
evsel->stats->aggr->counts.val = k;
if (evsel__name_is(evsel, "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, pm->metric_name))
continue;
pr_debug("Result %f\n", test_generic_metric(mexp, 0));
err = 0;
(*failures)--;
goto out_err;
}
}
}
pr_debug("Didn't find parsed metric %s", pm->metric_name);
err = 1;
out_err:
if (err)
pr_debug("Broken metric %s\n", pm->metric_name);
/* ... cleanup. */
metricgroup__rblist_exit(&metric_events);
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_metric(test__parsing_callback, &failures);
pmu_for_each_sys_metric(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 *metric_name, 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': '%s'\n", metric_name, str);
ctx = expr__ctx_new();
if (!ctx) {
pr_debug("expr__ctx_new failed");
return TEST_FAIL;
}
ctx->sctx.is_test = true;
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->pkey), i++);
hashmap__for_each_entry(ctx->ids, cur, bkt) {
if (check_parse_fake(cur->pkey)) {
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->pkey), i--);
if (expr__parse(&result, ctx, str)) {
pr_err("expr__parse failed for %s\n", metric_name);
/* The following have hard to avoid divide by zero. */
if (!strcmp(metric_name, "tma_clears_resteers") ||
!strcmp(metric_name, "tma_mispredicts_resteers"))
ret = 0;
else
ret = -1;
}
}
out:
expr__ctx_free(ctx);
return ret;
}
static int test__parsing_fake_callback(const struct pmu_metric *pm,
const struct pmu_metrics_table *table __maybe_unused,
void *data __maybe_unused)
{
return metric_parse_fake(pm->metric_name, pm->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_metric(test__parsing_fake_callback, NULL);
if (err)
return err;
return pmu_for_each_sys_metric(test__parsing_fake_callback, NULL);
}
static int test__parsing_threshold_callback(const struct pmu_metric *pm,
const struct pmu_metrics_table *table __maybe_unused,
void *data __maybe_unused)
{
if (!pm->metric_threshold)
return 0;
return metric_parse_fake(pm->metric_name, pm->metric_threshold);
}
static int test__parsing_threshold(struct test_suite *test __maybe_unused,
int subtest __maybe_unused)
{
int err = 0;
err = pmu_for_each_core_metric(test__parsing_threshold_callback, NULL);
if (err)
return err;
return pmu_for_each_sys_metric(test__parsing_threshold_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),
TEST_CASE("Parsing of metric thresholds with fake PMUs", parsing_threshold),
{ .name = NULL, }
};
struct test_suite suite__pmu_events = {
.desc = "PMU JSON event tests",
.test_cases = pmu_events_tests,
};
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