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2025cf9e | 1 | // SPDX-License-Identifier: GPL-2.0-only |
b18f3e36 AK |
2 | /* |
3 | * Copyright (c) 2017, Intel Corporation. | |
b18f3e36 AK |
4 | */ |
5 | ||
6 | /* Manage metrics and groups of metrics from JSON files */ | |
7 | ||
8 | #include "metricgroup.h" | |
b4209025 | 9 | #include "debug.h" |
b18f3e36 | 10 | #include "evlist.h" |
0b8026e8 | 11 | #include "evsel.h" |
b18f3e36 AK |
12 | #include "strbuf.h" |
13 | #include "pmu.h" | |
1eaf496e | 14 | #include "pmus.h" |
e5c6109f | 15 | #include "print-events.h" |
90053634 | 16 | #include "smt.h" |
b18f3e36 AK |
17 | #include "expr.h" |
18 | #include "rblist.h" | |
b18f3e36 | 19 | #include <string.h> |
b18f3e36 | 20 | #include <errno.h> |
b18f3e36 AK |
21 | #include "strlist.h" |
22 | #include <assert.h> | |
bd9860bf | 23 | #include <linux/ctype.h> |
80be6434 | 24 | #include <linux/list_sort.h> |
b4209025 | 25 | #include <linux/string.h> |
d8f9da24 | 26 | #include <linux/zalloc.h> |
1725e9cd | 27 | #include <perf/cpumap.h> |
0b8026e8 | 28 | #include <subcmd/parse-options.h> |
ab483d8b KL |
29 | #include <api/fs/fs.h> |
30 | #include "util.h" | |
f6fb0960 | 31 | #include <asm/bug.h> |
b214ba8c | 32 | #include "cgroup.h" |
bd560973 | 33 | #include "util/hashmap.h" |
b18f3e36 AK |
34 | |
35 | struct metric_event *metricgroup__lookup(struct rblist *metric_events, | |
32dcd021 | 36 | struct evsel *evsel, |
b18f3e36 AK |
37 | bool create) |
38 | { | |
39 | struct rb_node *nd; | |
40 | struct metric_event me = { | |
41 | .evsel = evsel | |
42 | }; | |
4bd1bef8 AK |
43 | |
44 | if (!metric_events) | |
45 | return NULL; | |
46 | ||
97b6b4ac | 47 | if (evsel && evsel->metric_leader) |
a59fb796 | 48 | me.evsel = evsel->metric_leader; |
b18f3e36 AK |
49 | nd = rblist__find(metric_events, &me); |
50 | if (nd) | |
51 | return container_of(nd, struct metric_event, nd); | |
52 | if (create) { | |
53 | rblist__add_node(metric_events, &me); | |
54 | nd = rblist__find(metric_events, &me); | |
55 | if (nd) | |
56 | return container_of(nd, struct metric_event, nd); | |
57 | } | |
58 | return NULL; | |
59 | } | |
60 | ||
61 | static int metric_event_cmp(struct rb_node *rb_node, const void *entry) | |
62 | { | |
63 | struct metric_event *a = container_of(rb_node, | |
64 | struct metric_event, | |
65 | nd); | |
66 | const struct metric_event *b = entry; | |
67 | ||
68 | if (a->evsel == b->evsel) | |
69 | return 0; | |
70 | if ((char *)a->evsel < (char *)b->evsel) | |
71 | return -1; | |
72 | return +1; | |
73 | } | |
74 | ||
75 | static struct rb_node *metric_event_new(struct rblist *rblist __maybe_unused, | |
76 | const void *entry) | |
77 | { | |
78 | struct metric_event *me = malloc(sizeof(struct metric_event)); | |
79 | ||
80 | if (!me) | |
81 | return NULL; | |
82 | memcpy(me, entry, sizeof(struct metric_event)); | |
83 | me->evsel = ((struct metric_event *)entry)->evsel; | |
1c0e4795 | 84 | me->is_default = false; |
b18f3e36 AK |
85 | INIT_LIST_HEAD(&me->head); |
86 | return &me->nd; | |
87 | } | |
88 | ||
9afe5658 JO |
89 | static void metric_event_delete(struct rblist *rblist __maybe_unused, |
90 | struct rb_node *rb_node) | |
91 | { | |
92 | struct metric_event *me = container_of(rb_node, struct metric_event, nd); | |
93 | struct metric_expr *expr, *tmp; | |
94 | ||
95 | list_for_each_entry_safe(expr, tmp, &me->head, nd) { | |
11ff9bcd ACM |
96 | zfree(&expr->metric_name); |
97 | zfree(&expr->metric_refs); | |
98 | zfree(&expr->metric_events); | |
9afe5658 JO |
99 | free(expr); |
100 | } | |
101 | ||
102 | free(me); | |
103 | } | |
104 | ||
b18f3e36 AK |
105 | static void metricgroup__rblist_init(struct rblist *metric_events) |
106 | { | |
107 | rblist__init(metric_events); | |
108 | metric_events->node_cmp = metric_event_cmp; | |
109 | metric_events->node_new = metric_event_new; | |
9afe5658 JO |
110 | metric_events->node_delete = metric_event_delete; |
111 | } | |
112 | ||
113 | void metricgroup__rblist_exit(struct rblist *metric_events) | |
114 | { | |
115 | rblist__exit(metric_events); | |
b18f3e36 AK |
116 | } |
117 | ||
485fcaed IR |
118 | /** |
119 | * The metric under construction. The data held here will be placed in a | |
120 | * metric_expr. | |
121 | */ | |
a0c05b36 | 122 | struct metric { |
b18f3e36 | 123 | struct list_head nd; |
485fcaed IR |
124 | /** |
125 | * The expression parse context importantly holding the IDs contained | |
126 | * within the expression. | |
127 | */ | |
cb94a02e | 128 | struct expr_parse_ctx *pctx; |
bd3846d0 | 129 | const char *pmu; |
485fcaed | 130 | /** The name of the metric such as "IPC". */ |
b18f3e36 | 131 | const char *metric_name; |
b85a4d61 IR |
132 | /** Modifier on the metric such as "u" or NULL for none. */ |
133 | const char *modifier; | |
485fcaed | 134 | /** The expression to parse, for example, "instructions/cycles". */ |
b18f3e36 | 135 | const char *metric_expr; |
d0a3052f IR |
136 | /** Optional threshold expression where zero value is green, otherwise red. */ |
137 | const char *metric_threshold; | |
485fcaed IR |
138 | /** |
139 | * The "ScaleUnit" that scales and adds a unit to the metric during | |
140 | * output. | |
141 | */ | |
287f2649 | 142 | const char *metric_unit; |
b0a9e8f8 KL |
143 | /** |
144 | * Optional name of the metric group reported | |
145 | * if the Default metric group is being processed. | |
146 | */ | |
147 | const char *default_metricgroup_name; | |
46bdc0bf IR |
148 | /** Optional null terminated array of referenced metrics. */ |
149 | struct metric_ref *metric_refs; | |
485fcaed | 150 | /** |
180a5013 | 151 | * Should events of the metric be grouped? |
485fcaed | 152 | */ |
180a5013 | 153 | bool group_events; |
5ecd5a0c IR |
154 | /** |
155 | * Parsed events for the metric. Optional as events may be taken from a | |
156 | * different metric whose group contains all the IDs necessary for this | |
157 | * one. | |
158 | */ | |
159 | struct evlist *evlist; | |
b18f3e36 AK |
160 | }; |
161 | ||
180a5013 | 162 | static void metric__watchdog_constraint_hint(const char *name, bool foot) |
3d81d761 IR |
163 | { |
164 | static bool violate_nmi_constraint; | |
165 | ||
166 | if (!foot) { | |
180a5013 | 167 | pr_warning("Not grouping metric %s's events.\n", name); |
3d81d761 IR |
168 | violate_nmi_constraint = true; |
169 | return; | |
170 | } | |
171 | ||
172 | if (!violate_nmi_constraint) | |
173 | return; | |
174 | ||
175 | pr_warning("Try disabling the NMI watchdog to comply NO_NMI_WATCHDOG metric constraint:\n" | |
176 | " echo 0 > /proc/sys/kernel/nmi_watchdog\n" | |
177 | " perf stat ...\n" | |
178 | " echo 1 > /proc/sys/kernel/nmi_watchdog\n"); | |
179 | } | |
180 | ||
180a5013 | 181 | static bool metric__group_events(const struct pmu_metric *pm) |
3d81d761 | 182 | { |
90053634 IR |
183 | switch (pm->event_grouping) { |
184 | case MetricNoGroupEvents: | |
185 | return false; | |
186 | case MetricNoGroupEventsNmi: | |
187 | if (!sysctl__nmi_watchdog_enabled()) | |
188 | return true; | |
180a5013 IR |
189 | metric__watchdog_constraint_hint(pm->metric_name, /*foot=*/false); |
190 | return false; | |
90053634 IR |
191 | case MetricNoGroupEventsSmt: |
192 | return !smt_on(); | |
193 | case MetricGroupEvents: | |
194 | default: | |
195 | return true; | |
3d81d761 | 196 | } |
3d81d761 IR |
197 | } |
198 | ||
1725e9cd IR |
199 | static void metric__free(struct metric *m) |
200 | { | |
201 | if (!m) | |
202 | return; | |
203 | ||
11ff9bcd | 204 | zfree(&m->metric_refs); |
1725e9cd | 205 | expr__ctx_free(m->pctx); |
11ff9bcd | 206 | zfree(&m->modifier); |
1725e9cd IR |
207 | evlist__delete(m->evlist); |
208 | free(m); | |
209 | } | |
210 | ||
db95818e | 211 | static struct metric *metric__new(const struct pmu_metric *pm, |
b85a4d61 | 212 | const char *modifier, |
3d81d761 | 213 | bool metric_no_group, |
1725e9cd IR |
214 | int runtime, |
215 | const char *user_requested_cpu_list, | |
216 | bool system_wide) | |
3d81d761 IR |
217 | { |
218 | struct metric *m; | |
219 | ||
220 | m = zalloc(sizeof(*m)); | |
221 | if (!m) | |
222 | return NULL; | |
223 | ||
224 | m->pctx = expr__ctx_new(); | |
1725e9cd IR |
225 | if (!m->pctx) |
226 | goto out_err; | |
3d81d761 | 227 | |
bd3846d0 | 228 | m->pmu = pm->pmu ?: "cpu"; |
db95818e | 229 | m->metric_name = pm->metric_name; |
e2b005d6 | 230 | m->default_metricgroup_name = pm->default_metricgroup_name ?: ""; |
1725e9cd IR |
231 | m->modifier = NULL; |
232 | if (modifier) { | |
233 | m->modifier = strdup(modifier); | |
234 | if (!m->modifier) | |
235 | goto out_err; | |
b85a4d61 | 236 | } |
db95818e | 237 | m->metric_expr = pm->metric_expr; |
d0a3052f | 238 | m->metric_threshold = pm->metric_threshold; |
db95818e | 239 | m->metric_unit = pm->unit; |
1725e9cd IR |
240 | m->pctx->sctx.user_requested_cpu_list = NULL; |
241 | if (user_requested_cpu_list) { | |
242 | m->pctx->sctx.user_requested_cpu_list = strdup(user_requested_cpu_list); | |
243 | if (!m->pctx->sctx.user_requested_cpu_list) | |
244 | goto out_err; | |
245 | } | |
1a6abdde | 246 | m->pctx->sctx.runtime = runtime; |
1725e9cd | 247 | m->pctx->sctx.system_wide = system_wide; |
180a5013 | 248 | m->group_events = !metric_no_group && metric__group_events(pm); |
46bdc0bf | 249 | m->metric_refs = NULL; |
5ecd5a0c | 250 | m->evlist = NULL; |
3d81d761 IR |
251 | |
252 | return m; | |
1725e9cd IR |
253 | out_err: |
254 | metric__free(m); | |
255 | return NULL; | |
3d81d761 IR |
256 | } |
257 | ||
ec5c5b3d IR |
258 | static bool contains_metric_id(struct evsel **metric_events, int num_events, |
259 | const char *metric_id) | |
dcc81be0 IR |
260 | { |
261 | int i; | |
262 | ||
263 | for (i = 0; i < num_events; i++) { | |
ec5c5b3d | 264 | if (!strcmp(evsel__metric_id(metric_events[i]), metric_id)) |
dcc81be0 IR |
265 | return true; |
266 | } | |
267 | return false; | |
268 | } | |
269 | ||
2440689d | 270 | /** |
5ecd5a0c IR |
271 | * setup_metric_events - Find a group of events in metric_evlist that correspond |
272 | * to the IDs from a parsed metric expression. | |
bd3846d0 | 273 | * @pmu: The PMU for the IDs. |
5ecd5a0c IR |
274 | * @ids: the metric IDs to match. |
275 | * @metric_evlist: the list of perf events. | |
276 | * @out_metric_events: holds the created metric events array. | |
2440689d | 277 | */ |
bd3846d0 | 278 | static int setup_metric_events(const char *pmu, struct hashmap *ids, |
5ecd5a0c | 279 | struct evlist *metric_evlist, |
17b3867d | 280 | struct evsel ***out_metric_events) |
b18f3e36 | 281 | { |
5ecd5a0c | 282 | struct evsel **metric_events; |
ec5c5b3d | 283 | const char *metric_id; |
5ecd5a0c IR |
284 | struct evsel *ev; |
285 | size_t ids_size, matched_events, i; | |
94f9eb95 | 286 | bool all_pmus = !strcmp(pmu, "all") || perf_pmus__num_core_pmus() == 1 || !is_pmu_core(pmu); |
2440689d | 287 | |
5ecd5a0c IR |
288 | *out_metric_events = NULL; |
289 | ids_size = hashmap__size(ids); | |
762a05c5 | 290 | |
7bbe8f00 | 291 | metric_events = calloc(ids_size + 1, sizeof(void *)); |
5ecd5a0c IR |
292 | if (!metric_events) |
293 | return -ENOMEM; | |
294 | ||
295 | matched_events = 0; | |
296 | evlist__for_each_entry(metric_evlist, ev) { | |
297 | struct expr_id_data *val_ptr; | |
762a05c5 | 298 | |
8a4859c5 | 299 | /* Don't match events for the wrong hybrid PMU. */ |
ec6a4a8b | 300 | if (!all_pmus && ev->pmu_name && evsel__is_hybrid(ev) && |
8a4859c5 | 301 | strcmp(ev->pmu_name, pmu)) |
bd3846d0 | 302 | continue; |
dcc81be0 | 303 | /* |
5ecd5a0c IR |
304 | * Check for duplicate events with the same name. For |
305 | * example, uncore_imc/cas_count_read/ will turn into 6 | |
306 | * events per socket on skylakex. Only the first such | |
307 | * event is placed in metric_events. | |
dcc81be0 | 308 | */ |
5ecd5a0c IR |
309 | metric_id = evsel__metric_id(ev); |
310 | if (contains_metric_id(metric_events, matched_events, metric_id)) | |
311 | continue; | |
312 | /* | |
313 | * Does this event belong to the parse context? For | |
314 | * combined or shared groups, this metric may not care | |
315 | * about this event. | |
316 | */ | |
c302378b | 317 | if (hashmap__find(ids, metric_id, &val_ptr)) { |
8a4859c5 | 318 | pr_debug("Matched metric-id %s to %s\n", metric_id, evsel__name(ev)); |
762a05c5 | 319 | metric_events[matched_events++] = ev; |
f01642e4 | 320 | |
5ecd5a0c IR |
321 | if (matched_events >= ids_size) |
322 | break; | |
323 | } | |
f01642e4 | 324 | } |
5ecd5a0c IR |
325 | if (matched_events < ids_size) { |
326 | free(metric_events); | |
327 | return -EINVAL; | |
328 | } | |
329 | for (i = 0; i < ids_size; i++) { | |
58fc90fd | 330 | ev = metric_events[i]; |
5ecd5a0c IR |
331 | ev->collect_stat = true; |
332 | ||
dcc81be0 | 333 | /* |
5ecd5a0c IR |
334 | * The metric leader points to the identically named |
335 | * event in metric_events. | |
dcc81be0 IR |
336 | */ |
337 | ev->metric_leader = ev; | |
338 | /* | |
5ecd5a0c IR |
339 | * Mark two events with identical names in the same |
340 | * group (or globally) as being in use as uncore events | |
341 | * may be duplicated for each pmu. Set the metric leader | |
342 | * of such events to be the event that appears in | |
343 | * metric_events. | |
dcc81be0 | 344 | */ |
ec5c5b3d | 345 | metric_id = evsel__metric_id(ev); |
5ecd5a0c | 346 | evlist__for_each_entry_continue(metric_evlist, ev) { |
d3e2bb43 | 347 | if (!strcmp(evsel__metric_id(ev), metric_id)) |
dcc81be0 | 348 | ev->metric_leader = metric_events[i]; |
dcc81be0 | 349 | } |
f01642e4 | 350 | } |
5ecd5a0c IR |
351 | *out_metric_events = metric_events; |
352 | return 0; | |
b18f3e36 AK |
353 | } |
354 | ||
d4be39ca | 355 | static bool match_metric(const char *metric_or_groups, const char *sought) |
b18f3e36 AK |
356 | { |
357 | int len; | |
358 | char *m; | |
359 | ||
d4be39ca | 360 | if (!sought) |
b18f3e36 | 361 | return false; |
d4be39ca | 362 | if (!strcmp(sought, "all")) |
b18f3e36 | 363 | return true; |
d4be39ca IR |
364 | if (!metric_or_groups) |
365 | return !strcasecmp(sought, "No_group"); | |
366 | len = strlen(sought); | |
367 | if (!strncasecmp(metric_or_groups, sought, len) && | |
368 | (metric_or_groups[len] == 0 || metric_or_groups[len] == ';')) | |
b18f3e36 | 369 | return true; |
d4be39ca IR |
370 | m = strchr(metric_or_groups, ';'); |
371 | return m && match_metric(m + 1, sought); | |
b18f3e36 AK |
372 | } |
373 | ||
bd3846d0 | 374 | static bool match_pm_metric(const struct pmu_metric *pm, const char *pmu, const char *metric) |
be335ec2 | 375 | { |
bd3846d0 IR |
376 | const char *pm_pmu = pm->pmu ?: "cpu"; |
377 | ||
378 | if (strcmp(pmu, "all") && strcmp(pm_pmu, pmu)) | |
379 | return false; | |
380 | ||
db95818e IR |
381 | return match_metric(pm->metric_group, metric) || |
382 | match_metric(pm->metric_name, metric); | |
be335ec2 JG |
383 | } |
384 | ||
e5c6109f | 385 | /** struct mep - RB-tree node for building printing information. */ |
71b0acce | 386 | struct mep { |
e5c6109f | 387 | /** nd - RB-tree element. */ |
71b0acce | 388 | struct rb_node nd; |
e5c6109f IR |
389 | /** @metric_group: Owned metric group name, separated others with ';'. */ |
390 | char *metric_group; | |
391 | const char *metric_name; | |
392 | const char *metric_desc; | |
393 | const char *metric_long_desc; | |
394 | const char *metric_expr; | |
c7551a2e | 395 | const char *metric_threshold; |
e5c6109f | 396 | const char *metric_unit; |
71b0acce AK |
397 | }; |
398 | ||
399 | static int mep_cmp(struct rb_node *rb_node, const void *entry) | |
400 | { | |
401 | struct mep *a = container_of(rb_node, struct mep, nd); | |
402 | struct mep *b = (struct mep *)entry; | |
e5c6109f IR |
403 | int ret; |
404 | ||
405 | ret = strcmp(a->metric_group, b->metric_group); | |
406 | if (ret) | |
407 | return ret; | |
71b0acce | 408 | |
e5c6109f | 409 | return strcmp(a->metric_name, b->metric_name); |
71b0acce AK |
410 | } |
411 | ||
e5c6109f | 412 | static struct rb_node *mep_new(struct rblist *rl __maybe_unused, const void *entry) |
71b0acce AK |
413 | { |
414 | struct mep *me = malloc(sizeof(struct mep)); | |
415 | ||
416 | if (!me) | |
417 | return NULL; | |
e5c6109f | 418 | |
71b0acce | 419 | memcpy(me, entry, sizeof(struct mep)); |
71b0acce | 420 | return &me->nd; |
e5c6109f IR |
421 | } |
422 | ||
423 | static void mep_delete(struct rblist *rl __maybe_unused, | |
424 | struct rb_node *nd) | |
425 | { | |
426 | struct mep *me = container_of(nd, struct mep, nd); | |
427 | ||
428 | zfree(&me->metric_group); | |
71b0acce | 429 | free(me); |
71b0acce AK |
430 | } |
431 | ||
e5c6109f IR |
432 | static struct mep *mep_lookup(struct rblist *groups, const char *metric_group, |
433 | const char *metric_name) | |
71b0acce AK |
434 | { |
435 | struct rb_node *nd; | |
436 | struct mep me = { | |
e5c6109f IR |
437 | .metric_group = strdup(metric_group), |
438 | .metric_name = metric_name, | |
71b0acce AK |
439 | }; |
440 | nd = rblist__find(groups, &me); | |
e5c6109f IR |
441 | if (nd) { |
442 | free(me.metric_group); | |
71b0acce | 443 | return container_of(nd, struct mep, nd); |
e5c6109f | 444 | } |
71b0acce AK |
445 | rblist__add_node(groups, &me); |
446 | nd = rblist__find(groups, &me); | |
447 | if (nd) | |
448 | return container_of(nd, struct mep, nd); | |
449 | return NULL; | |
450 | } | |
451 | ||
db95818e | 452 | static int metricgroup__add_to_mep_groups(const struct pmu_metric *pm, |
e5c6109f | 453 | struct rblist *groups) |
f6fe1e48 JG |
454 | { |
455 | const char *g; | |
456 | char *omg, *mg; | |
457 | ||
4b5ee6db | 458 | mg = strdup(pm->metric_group ?: pm->metric_name); |
f6fe1e48 JG |
459 | if (!mg) |
460 | return -ENOMEM; | |
461 | omg = mg; | |
462 | while ((g = strsep(&mg, ";")) != NULL) { | |
463 | struct mep *me; | |
f6fe1e48 JG |
464 | |
465 | g = skip_spaces(g); | |
e5c6109f | 466 | if (strlen(g)) |
db95818e | 467 | me = mep_lookup(groups, g, pm->metric_name); |
e5c6109f | 468 | else |
4b5ee6db | 469 | me = mep_lookup(groups, pm->metric_name, pm->metric_name); |
f6fe1e48 | 470 | |
e5c6109f | 471 | if (me) { |
db95818e IR |
472 | me->metric_desc = pm->desc; |
473 | me->metric_long_desc = pm->long_desc; | |
474 | me->metric_expr = pm->metric_expr; | |
c7551a2e | 475 | me->metric_threshold = pm->metric_threshold; |
db95818e | 476 | me->metric_unit = pm->unit; |
f6fe1e48 | 477 | } |
f6fe1e48 JG |
478 | } |
479 | free(omg); | |
480 | ||
481 | return 0; | |
482 | } | |
483 | ||
a36fadb1 | 484 | struct metricgroup_iter_data { |
db95818e | 485 | pmu_metric_iter_fn fn; |
a36fadb1 JG |
486 | void *data; |
487 | }; | |
488 | ||
db95818e | 489 | static int metricgroup__sys_event_iter(const struct pmu_metric *pm, |
f8ea2c15 | 490 | const struct pmu_metrics_table *table, |
29be2fe0 | 491 | void *data) |
a36fadb1 JG |
492 | { |
493 | struct metricgroup_iter_data *d = data; | |
494 | struct perf_pmu *pmu = NULL; | |
495 | ||
db95818e | 496 | if (!pm->metric_expr || !pm->compat) |
a36fadb1 JG |
497 | return 0; |
498 | ||
1eaf496e | 499 | while ((pmu = perf_pmus__scan(pmu))) { |
a36fadb1 | 500 | |
54409997 | 501 | if (!pmu->id || !pmu_uncore_identifier_match(pm->compat, pmu->id)) |
a36fadb1 JG |
502 | continue; |
503 | ||
db95818e | 504 | return d->fn(pm, table, d->data); |
a36fadb1 | 505 | } |
a36fadb1 JG |
506 | return 0; |
507 | } | |
508 | ||
db95818e | 509 | static int metricgroup__add_to_mep_groups_callback(const struct pmu_metric *pm, |
f8ea2c15 IR |
510 | const struct pmu_metrics_table *table __maybe_unused, |
511 | void *vdata) | |
660842e4 | 512 | { |
e5c6109f | 513 | struct rblist *groups = vdata; |
660842e4 | 514 | |
db95818e | 515 | return metricgroup__add_to_mep_groups(pm, groups); |
660842e4 IR |
516 | } |
517 | ||
e5c6109f | 518 | void metricgroup__print(const struct print_callbacks *print_cb, void *print_state) |
71b0acce | 519 | { |
71b0acce | 520 | struct rblist groups; |
f8ea2c15 | 521 | const struct pmu_metrics_table *table; |
e5c6109f | 522 | struct rb_node *node, *next; |
71b0acce AK |
523 | |
524 | rblist__init(&groups); | |
525 | groups.node_new = mep_new; | |
526 | groups.node_cmp = mep_cmp; | |
527 | groups.node_delete = mep_delete; | |
f8ea2c15 | 528 | table = pmu_metrics_table__find(); |
660842e4 | 529 | if (table) { |
4000519e | 530 | pmu_metrics_table__for_each_metric(table, |
db95818e IR |
531 | metricgroup__add_to_mep_groups_callback, |
532 | &groups); | |
71b0acce | 533 | } |
a36fadb1 JG |
534 | { |
535 | struct metricgroup_iter_data data = { | |
e5c6109f IR |
536 | .fn = metricgroup__add_to_mep_groups_callback, |
537 | .data = &groups, | |
a36fadb1 | 538 | }; |
db95818e | 539 | pmu_for_each_sys_metric(metricgroup__sys_event_iter, &data); |
a36fadb1 JG |
540 | } |
541 | ||
ca227029 | 542 | for (node = rb_first_cached(&groups.entries); node; node = next) { |
71b0acce AK |
543 | struct mep *me = container_of(node, struct mep, nd); |
544 | ||
e5c6109f IR |
545 | print_cb->print_metric(print_state, |
546 | me->metric_group, | |
547 | me->metric_name, | |
548 | me->metric_desc, | |
549 | me->metric_long_desc, | |
550 | me->metric_expr, | |
c7551a2e | 551 | me->metric_threshold, |
e5c6109f | 552 | me->metric_unit); |
71b0acce AK |
553 | next = rb_next(node); |
554 | rblist__remove_node(&groups, node); | |
555 | } | |
71b0acce AK |
556 | } |
557 | ||
ec5c5b3d IR |
558 | static const char *code_characters = ",-=@"; |
559 | ||
560 | static int encode_metric_id(struct strbuf *sb, const char *x) | |
561 | { | |
562 | char *c; | |
563 | int ret = 0; | |
564 | ||
565 | for (; *x; x++) { | |
566 | c = strchr(code_characters, *x); | |
567 | if (c) { | |
568 | ret = strbuf_addch(sb, '!'); | |
569 | if (ret) | |
570 | break; | |
571 | ||
572 | ret = strbuf_addch(sb, '0' + (c - code_characters)); | |
573 | if (ret) | |
574 | break; | |
575 | } else { | |
576 | ret = strbuf_addch(sb, *x); | |
577 | if (ret) | |
578 | break; | |
579 | } | |
580 | } | |
581 | return ret; | |
582 | } | |
583 | ||
584 | static int decode_metric_id(struct strbuf *sb, const char *x) | |
585 | { | |
586 | const char *orig = x; | |
587 | size_t i; | |
588 | char c; | |
589 | int ret; | |
590 | ||
591 | for (; *x; x++) { | |
592 | c = *x; | |
593 | if (*x == '!') { | |
594 | x++; | |
595 | i = *x - '0'; | |
596 | if (i > strlen(code_characters)) { | |
597 | pr_err("Bad metric-id encoding in: '%s'", orig); | |
598 | return -1; | |
599 | } | |
600 | c = code_characters[i]; | |
601 | } | |
602 | ret = strbuf_addch(sb, c); | |
603 | if (ret) | |
604 | return ret; | |
605 | } | |
606 | return 0; | |
607 | } | |
608 | ||
b85a4d61 | 609 | static int decode_all_metric_ids(struct evlist *perf_evlist, const char *modifier) |
ec5c5b3d IR |
610 | { |
611 | struct evsel *ev; | |
612 | struct strbuf sb = STRBUF_INIT; | |
613 | char *cur; | |
614 | int ret = 0; | |
615 | ||
616 | evlist__for_each_entry(perf_evlist, ev) { | |
617 | if (!ev->metric_id) | |
618 | continue; | |
619 | ||
620 | ret = strbuf_setlen(&sb, 0); | |
621 | if (ret) | |
622 | break; | |
623 | ||
624 | ret = decode_metric_id(&sb, ev->metric_id); | |
625 | if (ret) | |
626 | break; | |
627 | ||
628 | free((char *)ev->metric_id); | |
629 | ev->metric_id = strdup(sb.buf); | |
630 | if (!ev->metric_id) { | |
631 | ret = -ENOMEM; | |
632 | break; | |
633 | } | |
634 | /* | |
635 | * If the name is just the parsed event, use the metric-id to | |
636 | * give a more friendly display version. | |
637 | */ | |
638 | if (strstr(ev->name, "metric-id=")) { | |
b85a4d61 IR |
639 | bool has_slash = false; |
640 | ||
11ff9bcd | 641 | zfree(&ev->name); |
b85a4d61 | 642 | for (cur = strchr(sb.buf, '@') ; cur; cur = strchr(++cur, '@')) { |
ec5c5b3d | 643 | *cur = '/'; |
b85a4d61 IR |
644 | has_slash = true; |
645 | } | |
ec5c5b3d | 646 | |
b85a4d61 IR |
647 | if (modifier) { |
648 | if (!has_slash && !strchr(sb.buf, ':')) { | |
649 | ret = strbuf_addch(&sb, ':'); | |
650 | if (ret) | |
651 | break; | |
652 | } | |
653 | ret = strbuf_addstr(&sb, modifier); | |
654 | if (ret) | |
655 | break; | |
656 | } | |
ec5c5b3d IR |
657 | ev->name = strdup(sb.buf); |
658 | if (!ev->name) { | |
659 | ret = -ENOMEM; | |
660 | break; | |
661 | } | |
662 | } | |
663 | } | |
664 | strbuf_release(&sb); | |
665 | return ret; | |
666 | } | |
667 | ||
668 | static int metricgroup__build_event_string(struct strbuf *events, | |
669 | const struct expr_parse_ctx *ctx, | |
b85a4d61 | 670 | const char *modifier, |
180a5013 | 671 | bool group_events) |
f742634a | 672 | { |
ded80bda | 673 | struct hashmap_entry *cur; |
4e21c13a | 674 | size_t bkt; |
9aa09230 IR |
675 | bool no_group = true, has_tool_events = false; |
676 | bool tool_events[PERF_TOOL_MAX] = {false}; | |
ec5c5b3d IR |
677 | int ret = 0; |
678 | ||
679 | #define RETURN_IF_NON_ZERO(x) do { if (x) return x; } while (0) | |
f742634a | 680 | |
cb94a02e | 681 | hashmap__for_each_entry(ctx->ids, cur, bkt) { |
c302378b | 682 | const char *sep, *rsep, *id = cur->pkey; |
9aa09230 | 683 | enum perf_tool_event ev; |
ec5c5b3d IR |
684 | |
685 | pr_debug("found event %s\n", id); | |
9aa09230 IR |
686 | |
687 | /* Always move tool events outside of the group. */ | |
688 | ev = perf_tool_event__from_str(id); | |
689 | if (ev != PERF_TOOL_NONE) { | |
690 | has_tool_events = true; | |
691 | tool_events[ev] = true; | |
f742634a KL |
692 | continue; |
693 | } | |
ec5c5b3d IR |
694 | /* Separate events with commas and open the group if necessary. */ |
695 | if (no_group) { | |
180a5013 | 696 | if (group_events) { |
ec5c5b3d IR |
697 | ret = strbuf_addch(events, '{'); |
698 | RETURN_IF_NON_ZERO(ret); | |
699 | } | |
ab483d8b | 700 | |
ec5c5b3d IR |
701 | no_group = false; |
702 | } else { | |
703 | ret = strbuf_addch(events, ','); | |
704 | RETURN_IF_NON_ZERO(ret); | |
705 | } | |
706 | /* | |
707 | * Encode the ID as an event string. Add a qualifier for | |
708 | * metric_id that is the original name except with characters | |
709 | * that parse-events can't parse replaced. For example, | |
710 | * 'msr@tsc@' gets added as msr/tsc,metric-id=msr!3tsc!3/ | |
711 | */ | |
712 | sep = strchr(id, '@'); | |
713 | if (sep != NULL) { | |
714 | ret = strbuf_add(events, id, sep - id); | |
715 | RETURN_IF_NON_ZERO(ret); | |
716 | ret = strbuf_addch(events, '/'); | |
717 | RETURN_IF_NON_ZERO(ret); | |
718 | rsep = strrchr(sep, '@'); | |
719 | ret = strbuf_add(events, sep + 1, rsep - sep - 1); | |
720 | RETURN_IF_NON_ZERO(ret); | |
721 | ret = strbuf_addstr(events, ",metric-id="); | |
722 | RETURN_IF_NON_ZERO(ret); | |
723 | sep = rsep; | |
724 | } else { | |
725 | sep = strchr(id, ':'); | |
726 | if (sep != NULL) { | |
727 | ret = strbuf_add(events, id, sep - id); | |
728 | RETURN_IF_NON_ZERO(ret); | |
729 | } else { | |
730 | ret = strbuf_addstr(events, id); | |
731 | RETURN_IF_NON_ZERO(ret); | |
732 | } | |
733 | ret = strbuf_addstr(events, "/metric-id="); | |
734 | RETURN_IF_NON_ZERO(ret); | |
735 | } | |
736 | ret = encode_metric_id(events, id); | |
737 | RETURN_IF_NON_ZERO(ret); | |
738 | ret = strbuf_addstr(events, "/"); | |
739 | RETURN_IF_NON_ZERO(ret); | |
740 | ||
741 | if (sep != NULL) { | |
742 | ret = strbuf_addstr(events, sep + 1); | |
743 | RETURN_IF_NON_ZERO(ret); | |
744 | } | |
b85a4d61 IR |
745 | if (modifier) { |
746 | ret = strbuf_addstr(events, modifier); | |
747 | RETURN_IF_NON_ZERO(ret); | |
748 | } | |
e2ce1059 | 749 | } |
180a5013 | 750 | if (!no_group && group_events) { |
ec5c5b3d | 751 | ret = strbuf_addf(events, "}:W"); |
9aa09230 IR |
752 | RETURN_IF_NON_ZERO(ret); |
753 | } | |
754 | if (has_tool_events) { | |
755 | int i; | |
756 | ||
757 | perf_tool_event__for_each_event(i) { | |
758 | if (tool_events[i]) { | |
759 | if (!no_group) { | |
760 | ret = strbuf_addch(events, ','); | |
761 | RETURN_IF_NON_ZERO(ret); | |
762 | } | |
763 | no_group = false; | |
764 | ret = strbuf_addstr(events, perf_tool_event__to_str(i)); | |
765 | RETURN_IF_NON_ZERO(ret); | |
766 | } | |
767 | } | |
768 | } | |
ec5c5b3d IR |
769 | |
770 | return ret; | |
771 | #undef RETURN_IF_NON_ZERO | |
ab483d8b KL |
772 | } |
773 | ||
db95818e | 774 | int __weak arch_get_runtimeparam(const struct pmu_metric *pm __maybe_unused) |
1e1a873d KJ |
775 | { |
776 | return 1; | |
777 | } | |
778 | ||
80be6434 IR |
779 | /* |
780 | * A singly linked list on the stack of the names of metrics being | |
781 | * processed. Used to identify recursion. | |
782 | */ | |
783 | struct visited_metric { | |
784 | const char *name; | |
785 | const struct visited_metric *parent; | |
786 | }; | |
787 | ||
be335ec2 JG |
788 | struct metricgroup_add_iter_data { |
789 | struct list_head *metric_list; | |
bd3846d0 | 790 | const char *pmu; |
68074811 | 791 | const char *metric_name; |
b85a4d61 | 792 | const char *modifier; |
be335ec2 JG |
793 | int *ret; |
794 | bool *has_match; | |
795 | bool metric_no_group; | |
1fd09e29 | 796 | bool metric_no_threshold; |
1725e9cd IR |
797 | const char *user_requested_cpu_list; |
798 | bool system_wide; | |
80be6434 IR |
799 | struct metric *root_metric; |
800 | const struct visited_metric *visited; | |
f8ea2c15 | 801 | const struct pmu_metrics_table *table; |
be335ec2 JG |
802 | }; |
803 | ||
bd3846d0 IR |
804 | static bool metricgroup__find_metric(const char *pmu, |
805 | const char *metric, | |
f8ea2c15 | 806 | const struct pmu_metrics_table *table, |
db95818e | 807 | struct pmu_metric *pm); |
d3abd7b8 | 808 | |
80be6434 | 809 | static int add_metric(struct list_head *metric_list, |
db95818e | 810 | const struct pmu_metric *pm, |
b85a4d61 | 811 | const char *modifier, |
80be6434 | 812 | bool metric_no_group, |
1fd09e29 | 813 | bool metric_no_threshold, |
1725e9cd IR |
814 | const char *user_requested_cpu_list, |
815 | bool system_wide, | |
80be6434 IR |
816 | struct metric *root_metric, |
817 | const struct visited_metric *visited, | |
f8ea2c15 | 818 | const struct pmu_metrics_table *table); |
80be6434 IR |
819 | |
820 | /** | |
821 | * resolve_metric - Locate metrics within the root metric and recursively add | |
822 | * references to them. | |
823 | * @metric_list: The list the metric is added to. | |
bd3846d0 | 824 | * @pmu: The PMU name to resolve metrics on, or "all" for all PMUs. |
b85a4d61 | 825 | * @modifier: if non-null event modifiers like "u". |
80be6434 IR |
826 | * @metric_no_group: Should events written to events be grouped "{}" or |
827 | * global. Grouping is the default but due to multiplexing the | |
828 | * user may override. | |
1725e9cd IR |
829 | * @user_requested_cpu_list: Command line specified CPUs to record on. |
830 | * @system_wide: Are events for all processes recorded. | |
80be6434 IR |
831 | * @root_metric: Metrics may reference other metrics to form a tree. In this |
832 | * case the root_metric holds all the IDs and a list of referenced | |
833 | * metrics. When adding a root this argument is NULL. | |
834 | * @visited: A singly linked list of metric names being added that is used to | |
835 | * detect recursion. | |
eeac7730 | 836 | * @table: The table that is searched for metrics, most commonly the table for the |
80be6434 IR |
837 | * architecture perf is running upon. |
838 | */ | |
839 | static int resolve_metric(struct list_head *metric_list, | |
bd3846d0 | 840 | const char *pmu, |
b85a4d61 | 841 | const char *modifier, |
80be6434 | 842 | bool metric_no_group, |
1fd09e29 | 843 | bool metric_no_threshold, |
1725e9cd IR |
844 | const char *user_requested_cpu_list, |
845 | bool system_wide, | |
80be6434 IR |
846 | struct metric *root_metric, |
847 | const struct visited_metric *visited, | |
f8ea2c15 | 848 | const struct pmu_metrics_table *table) |
80be6434 IR |
849 | { |
850 | struct hashmap_entry *cur; | |
851 | size_t bkt; | |
852 | struct to_resolve { | |
853 | /* The metric to resolve. */ | |
db95818e | 854 | struct pmu_metric pm; |
80be6434 IR |
855 | /* |
856 | * The key in the IDs map, this may differ from in case, | |
db95818e | 857 | * etc. from pm->metric_name. |
80be6434 IR |
858 | */ |
859 | const char *key; | |
860 | } *pending = NULL; | |
861 | int i, ret = 0, pending_cnt = 0; | |
862 | ||
863 | /* | |
864 | * Iterate all the parsed IDs and if there's a matching metric and it to | |
865 | * the pending array. | |
866 | */ | |
867 | hashmap__for_each_entry(root_metric->pctx->ids, cur, bkt) { | |
db95818e | 868 | struct pmu_metric pm; |
80be6434 | 869 | |
bd3846d0 | 870 | if (metricgroup__find_metric(pmu, cur->pkey, table, &pm)) { |
80be6434 IR |
871 | pending = realloc(pending, |
872 | (pending_cnt + 1) * sizeof(struct to_resolve)); | |
873 | if (!pending) | |
874 | return -ENOMEM; | |
875 | ||
db95818e | 876 | memcpy(&pending[pending_cnt].pm, &pm, sizeof(pm)); |
c302378b | 877 | pending[pending_cnt].key = cur->pkey; |
80be6434 IR |
878 | pending_cnt++; |
879 | } | |
880 | } | |
881 | ||
882 | /* Remove the metric IDs from the context. */ | |
883 | for (i = 0; i < pending_cnt; i++) | |
884 | expr__del_id(root_metric->pctx, pending[i].key); | |
885 | ||
886 | /* | |
887 | * Recursively add all the metrics, IDs are added to the root metric's | |
888 | * context. | |
889 | */ | |
890 | for (i = 0; i < pending_cnt; i++) { | |
db95818e | 891 | ret = add_metric(metric_list, &pending[i].pm, modifier, metric_no_group, |
1fd09e29 IR |
892 | metric_no_threshold, user_requested_cpu_list, system_wide, |
893 | root_metric, visited, table); | |
80be6434 IR |
894 | if (ret) |
895 | break; | |
896 | } | |
897 | ||
898 | free(pending); | |
899 | return ret; | |
900 | } | |
901 | ||
68074811 IR |
902 | /** |
903 | * __add_metric - Add a metric to metric_list. | |
904 | * @metric_list: The list the metric is added to. | |
db95818e | 905 | * @pm: The pmu_metric containing the metric to be added. |
b85a4d61 | 906 | * @modifier: if non-null event modifiers like "u". |
68074811 IR |
907 | * @metric_no_group: Should events written to events be grouped "{}" or |
908 | * global. Grouping is the default but due to multiplexing the | |
909 | * user may override. | |
1fd09e29 | 910 | * @metric_no_threshold: Should threshold expressions be ignored? |
68074811 | 911 | * @runtime: A special argument for the parser only known at runtime. |
1725e9cd IR |
912 | * @user_requested_cpu_list: Command line specified CPUs to record on. |
913 | * @system_wide: Are events for all processes recorded. | |
80be6434 IR |
914 | * @root_metric: Metrics may reference other metrics to form a tree. In this |
915 | * case the root_metric holds all the IDs and a list of referenced | |
916 | * metrics. When adding a root this argument is NULL. | |
917 | * @visited: A singly linked list of metric names being added that is used to | |
918 | * detect recursion. | |
eeac7730 | 919 | * @table: The table that is searched for metrics, most commonly the table for the |
80be6434 | 920 | * architecture perf is running upon. |
68074811 | 921 | */ |
119e521a | 922 | static int __add_metric(struct list_head *metric_list, |
db95818e | 923 | const struct pmu_metric *pm, |
b85a4d61 | 924 | const char *modifier, |
e7e1badd | 925 | bool metric_no_group, |
1fd09e29 | 926 | bool metric_no_threshold, |
83de0b7d | 927 | int runtime, |
1725e9cd IR |
928 | const char *user_requested_cpu_list, |
929 | bool system_wide, | |
80be6434 IR |
930 | struct metric *root_metric, |
931 | const struct visited_metric *visited, | |
f8ea2c15 | 932 | const struct pmu_metrics_table *table) |
47352aba | 933 | { |
80be6434 IR |
934 | const struct visited_metric *vm; |
935 | int ret; | |
936 | bool is_root = !root_metric; | |
d0a3052f | 937 | const char *expr; |
80be6434 | 938 | struct visited_metric visited_node = { |
db95818e | 939 | .name = pm->metric_name, |
80be6434 IR |
940 | .parent = visited, |
941 | }; | |
942 | ||
943 | for (vm = visited; vm; vm = vm->parent) { | |
db95818e IR |
944 | if (!strcmp(pm->metric_name, vm->name)) { |
945 | pr_err("failed: recursion detected for %s\n", pm->metric_name); | |
80be6434 IR |
946 | return -1; |
947 | } | |
948 | } | |
47352aba | 949 | |
80be6434 | 950 | if (is_root) { |
83de0b7d | 951 | /* |
80be6434 IR |
952 | * This metric is the root of a tree and may reference other |
953 | * metrics that are added recursively. | |
83de0b7d | 954 | */ |
db95818e | 955 | root_metric = metric__new(pm, modifier, metric_no_group, runtime, |
1725e9cd | 956 | user_requested_cpu_list, system_wide); |
80be6434 | 957 | if (!root_metric) |
83de0b7d JO |
958 | return -ENOMEM; |
959 | ||
83de0b7d | 960 | } else { |
46bdc0bf IR |
961 | int cnt = 0; |
962 | ||
83de0b7d | 963 | /* |
a3de7690 IR |
964 | * This metric was referenced in a metric higher in the |
965 | * tree. Check if the same metric is already resolved in the | |
966 | * metric_refs list. | |
83de0b7d | 967 | */ |
46bdc0bf IR |
968 | if (root_metric->metric_refs) { |
969 | for (; root_metric->metric_refs[cnt].metric_name; cnt++) { | |
db95818e | 970 | if (!strcmp(pm->metric_name, |
46bdc0bf IR |
971 | root_metric->metric_refs[cnt].metric_name)) |
972 | return 0; | |
973 | } | |
a3de7690 IR |
974 | } |
975 | ||
46bdc0bf IR |
976 | /* Create reference. Need space for the entry and the terminator. */ |
977 | root_metric->metric_refs = realloc(root_metric->metric_refs, | |
978 | (cnt + 2) * sizeof(struct metric_ref)); | |
979 | if (!root_metric->metric_refs) | |
83de0b7d JO |
980 | return -ENOMEM; |
981 | ||
982 | /* | |
983 | * Intentionally passing just const char pointers, | |
984 | * from 'pe' object, so they never go away. We don't | |
985 | * need to change them, so there's no need to create | |
986 | * our own copy. | |
987 | */ | |
db95818e IR |
988 | root_metric->metric_refs[cnt].metric_name = pm->metric_name; |
989 | root_metric->metric_refs[cnt].metric_expr = pm->metric_expr; | |
47352aba | 990 | |
46bdc0bf IR |
991 | /* Null terminate array. */ |
992 | root_metric->metric_refs[cnt+1].metric_name = NULL; | |
993 | root_metric->metric_refs[cnt+1].metric_expr = NULL; | |
83de0b7d | 994 | } |
ded80bda | 995 | |
83de0b7d JO |
996 | /* |
997 | * For both the parent and referenced metrics, we parse | |
80be6434 | 998 | * all the metric's IDs and add it to the root context. |
83de0b7d | 999 | */ |
d0a3052f IR |
1000 | ret = 0; |
1001 | expr = pm->metric_expr; | |
1002 | if (is_root && pm->metric_threshold) { | |
1003 | /* | |
1004 | * Threshold expressions are built off the actual metric. Switch | |
1005 | * to use that in case of additional necessary events. Change | |
1006 | * the visited node name to avoid this being flagged as | |
1fd09e29 IR |
1007 | * recursion. If the threshold events are disabled, just use the |
1008 | * metric's name as a reference. This allows metric threshold | |
1009 | * computation if there are sufficient events. | |
d0a3052f IR |
1010 | */ |
1011 | assert(strstr(pm->metric_threshold, pm->metric_name)); | |
1fd09e29 | 1012 | expr = metric_no_threshold ? pm->metric_name : pm->metric_threshold; |
d0a3052f IR |
1013 | visited_node.name = "__threshold__"; |
1014 | } | |
1015 | if (expr__find_ids(expr, NULL, root_metric->pctx) < 0) { | |
80be6434 IR |
1016 | /* Broken metric. */ |
1017 | ret = -EINVAL; | |
d0a3052f IR |
1018 | } |
1019 | if (!ret) { | |
80be6434 | 1020 | /* Resolve referenced metrics. */ |
bd3846d0 IR |
1021 | const char *pmu = pm->pmu ?: "cpu"; |
1022 | ||
1023 | ret = resolve_metric(metric_list, pmu, modifier, metric_no_group, | |
1fd09e29 | 1024 | metric_no_threshold, user_requested_cpu_list, |
bd3846d0 IR |
1025 | system_wide, root_metric, &visited_node, |
1026 | table); | |
ded80bda | 1027 | } |
80be6434 IR |
1028 | if (ret) { |
1029 | if (is_root) | |
1030 | metric__free(root_metric); | |
6bf2102b | 1031 | |
80be6434 IR |
1032 | } else if (is_root) |
1033 | list_add(&root_metric->nd, metric_list); | |
47352aba | 1034 | |
80be6434 | 1035 | return ret; |
47352aba KJ |
1036 | } |
1037 | ||
660842e4 | 1038 | struct metricgroup__find_metric_data { |
bd3846d0 | 1039 | const char *pmu; |
660842e4 | 1040 | const char *metric; |
db95818e | 1041 | struct pmu_metric *pm; |
660842e4 IR |
1042 | }; |
1043 | ||
db95818e | 1044 | static int metricgroup__find_metric_callback(const struct pmu_metric *pm, |
f8ea2c15 | 1045 | const struct pmu_metrics_table *table __maybe_unused, |
660842e4 IR |
1046 | void *vdata) |
1047 | { | |
1048 | struct metricgroup__find_metric_data *data = vdata; | |
bd3846d0 IR |
1049 | const char *pm_pmu = pm->pmu ?: "cpu"; |
1050 | ||
1051 | if (strcmp(data->pmu, "all") && strcmp(pm_pmu, data->pmu)) | |
1052 | return 0; | |
660842e4 | 1053 | |
db95818e | 1054 | if (!match_metric(pm->metric_name, data->metric)) |
660842e4 | 1055 | return 0; |
ce391940 | 1056 | |
db95818e | 1057 | memcpy(data->pm, pm, sizeof(*pm)); |
d3abd7b8 | 1058 | return 1; |
660842e4 | 1059 | } |
ce391940 | 1060 | |
bd3846d0 IR |
1061 | static bool metricgroup__find_metric(const char *pmu, |
1062 | const char *metric, | |
f8ea2c15 | 1063 | const struct pmu_metrics_table *table, |
db95818e | 1064 | struct pmu_metric *pm) |
83de0b7d | 1065 | { |
660842e4 | 1066 | struct metricgroup__find_metric_data data = { |
bd3846d0 | 1067 | .pmu = pmu, |
660842e4 | 1068 | .metric = metric, |
db95818e | 1069 | .pm = pm, |
660842e4 | 1070 | }; |
83de0b7d | 1071 | |
4000519e | 1072 | return pmu_metrics_table__for_each_metric(table, metricgroup__find_metric_callback, &data) |
d3abd7b8 | 1073 | ? true : false; |
83de0b7d JO |
1074 | } |
1075 | ||
119e521a | 1076 | static int add_metric(struct list_head *metric_list, |
db95818e | 1077 | const struct pmu_metric *pm, |
b85a4d61 | 1078 | const char *modifier, |
83de0b7d | 1079 | bool metric_no_group, |
1fd09e29 | 1080 | bool metric_no_threshold, |
1725e9cd IR |
1081 | const char *user_requested_cpu_list, |
1082 | bool system_wide, | |
80be6434 IR |
1083 | struct metric *root_metric, |
1084 | const struct visited_metric *visited, | |
f8ea2c15 | 1085 | const struct pmu_metrics_table *table) |
83de0b7d | 1086 | { |
a29c164a JO |
1087 | int ret = 0; |
1088 | ||
db95818e | 1089 | pr_debug("metric expr %s for %s\n", pm->metric_expr, pm->metric_name); |
a29c164a | 1090 | |
db95818e | 1091 | if (!strstr(pm->metric_expr, "?")) { |
1fd09e29 IR |
1092 | ret = __add_metric(metric_list, pm, modifier, metric_no_group, |
1093 | metric_no_threshold, 0, user_requested_cpu_list, | |
1094 | system_wide, root_metric, visited, table); | |
a29c164a JO |
1095 | } else { |
1096 | int j, count; | |
1097 | ||
db95818e | 1098 | count = arch_get_runtimeparam(pm); |
a29c164a JO |
1099 | |
1100 | /* This loop is added to create multiple | |
1101 | * events depend on count value and add | |
119e521a | 1102 | * those events to metric_list. |
a29c164a JO |
1103 | */ |
1104 | ||
80be6434 | 1105 | for (j = 0; j < count && !ret; j++) |
1fd09e29 IR |
1106 | ret = __add_metric(metric_list, pm, modifier, metric_no_group, |
1107 | metric_no_threshold, j, user_requested_cpu_list, | |
1108 | system_wide, root_metric, visited, table); | |
a29c164a JO |
1109 | } |
1110 | ||
1111 | return ret; | |
1112 | } | |
1113 | ||
db95818e | 1114 | static int metricgroup__add_metric_sys_event_iter(const struct pmu_metric *pm, |
f8ea2c15 IR |
1115 | const struct pmu_metrics_table *table __maybe_unused, |
1116 | void *data) | |
be335ec2 JG |
1117 | { |
1118 | struct metricgroup_add_iter_data *d = data; | |
1119 | int ret; | |
1120 | ||
bd3846d0 | 1121 | if (!match_pm_metric(pm, d->pmu, d->metric_name)) |
be335ec2 JG |
1122 | return 0; |
1123 | ||
db95818e | 1124 | ret = add_metric(d->metric_list, pm, d->modifier, d->metric_no_group, |
1fd09e29 IR |
1125 | d->metric_no_threshold, d->user_requested_cpu_list, |
1126 | d->system_wide, d->root_metric, d->visited, d->table); | |
be335ec2 | 1127 | if (ret) |
fe7a98b9 | 1128 | goto out; |
be335ec2 JG |
1129 | |
1130 | *(d->has_match) = true; | |
1131 | ||
fe7a98b9 JG |
1132 | out: |
1133 | *(d->ret) = ret; | |
1134 | return ret; | |
be335ec2 JG |
1135 | } |
1136 | ||
6b6b16b3 IR |
1137 | /** |
1138 | * metric_list_cmp - list_sort comparator that sorts metrics with more events to | |
9aa09230 | 1139 | * the front. tool events are excluded from the count. |
6b6b16b3 | 1140 | */ |
80be6434 IR |
1141 | static int metric_list_cmp(void *priv __maybe_unused, const struct list_head *l, |
1142 | const struct list_head *r) | |
1143 | { | |
1144 | const struct metric *left = container_of(l, struct metric, nd); | |
1145 | const struct metric *right = container_of(r, struct metric, nd); | |
6b6b16b3 | 1146 | struct expr_id_data *data; |
9aa09230 | 1147 | int i, left_count, right_count; |
6b6b16b3 IR |
1148 | |
1149 | left_count = hashmap__size(left->pctx->ids); | |
9aa09230 IR |
1150 | perf_tool_event__for_each_event(i) { |
1151 | if (!expr__get_id(left->pctx, perf_tool_event__to_str(i), &data)) | |
1152 | left_count--; | |
1153 | } | |
6b6b16b3 IR |
1154 | |
1155 | right_count = hashmap__size(right->pctx->ids); | |
9aa09230 IR |
1156 | perf_tool_event__for_each_event(i) { |
1157 | if (!expr__get_id(right->pctx, perf_tool_event__to_str(i), &data)) | |
1158 | right_count--; | |
1159 | } | |
80be6434 | 1160 | |
6b6b16b3 | 1161 | return right_count - left_count; |
80be6434 IR |
1162 | } |
1163 | ||
1c0e4795 KL |
1164 | /** |
1165 | * default_metricgroup_cmp - Implements complex key for the Default metricgroup | |
1166 | * that first sorts by default_metricgroup_name, then | |
1167 | * metric_name. | |
1168 | */ | |
1169 | static int default_metricgroup_cmp(void *priv __maybe_unused, | |
1170 | const struct list_head *l, | |
1171 | const struct list_head *r) | |
1172 | { | |
1173 | const struct metric *left = container_of(l, struct metric, nd); | |
1174 | const struct metric *right = container_of(r, struct metric, nd); | |
1175 | int diff = strcmp(right->default_metricgroup_name, left->default_metricgroup_name); | |
1176 | ||
1177 | if (diff) | |
1178 | return diff; | |
1179 | ||
1180 | return strcmp(right->metric_name, left->metric_name); | |
1181 | } | |
1182 | ||
660842e4 IR |
1183 | struct metricgroup__add_metric_data { |
1184 | struct list_head *list; | |
bd3846d0 | 1185 | const char *pmu; |
660842e4 IR |
1186 | const char *metric_name; |
1187 | const char *modifier; | |
1725e9cd | 1188 | const char *user_requested_cpu_list; |
660842e4 | 1189 | bool metric_no_group; |
1fd09e29 | 1190 | bool metric_no_threshold; |
1725e9cd | 1191 | bool system_wide; |
660842e4 IR |
1192 | bool has_match; |
1193 | }; | |
1194 | ||
db95818e | 1195 | static int metricgroup__add_metric_callback(const struct pmu_metric *pm, |
f8ea2c15 | 1196 | const struct pmu_metrics_table *table, |
660842e4 IR |
1197 | void *vdata) |
1198 | { | |
1199 | struct metricgroup__add_metric_data *data = vdata; | |
1200 | int ret = 0; | |
1201 | ||
bd3846d0 | 1202 | if (pm->metric_expr && match_pm_metric(pm, data->pmu, data->metric_name)) { |
ccc66c60 | 1203 | bool metric_no_group = data->metric_no_group || |
e4c4e8a5 | 1204 | match_metric(pm->metricgroup_no_group, data->metric_name); |
660842e4 IR |
1205 | |
1206 | data->has_match = true; | |
ccc66c60 | 1207 | ret = add_metric(data->list, pm, data->modifier, metric_no_group, |
1fd09e29 IR |
1208 | data->metric_no_threshold, data->user_requested_cpu_list, |
1209 | data->system_wide, /*root_metric=*/NULL, | |
1210 | /*visited_metrics=*/NULL, table); | |
660842e4 IR |
1211 | } |
1212 | return ret; | |
1213 | } | |
1214 | ||
68074811 IR |
1215 | /** |
1216 | * metricgroup__add_metric - Find and add a metric, or a metric group. | |
bd3846d0 | 1217 | * @pmu: The PMU name to search for metrics on, or "all" for all PMUs. |
68074811 IR |
1218 | * @metric_name: The name of the metric or metric group. For example, "IPC" |
1219 | * could be the name of a metric and "TopDownL1" the name of a | |
1220 | * metric group. | |
b85a4d61 | 1221 | * @modifier: if non-null event modifiers like "u". |
68074811 IR |
1222 | * @metric_no_group: Should events written to events be grouped "{}" or |
1223 | * global. Grouping is the default but due to multiplexing the | |
1224 | * user may override. | |
1725e9cd IR |
1225 | * @user_requested_cpu_list: Command line specified CPUs to record on. |
1226 | * @system_wide: Are events for all processes recorded. | |
68074811 | 1227 | * @metric_list: The list that the metric or metric group are added to. |
eeac7730 | 1228 | * @table: The table that is searched for metrics, most commonly the table for the |
68074811 IR |
1229 | * architecture perf is running upon. |
1230 | */ | |
bd3846d0 | 1231 | static int metricgroup__add_metric(const char *pmu, const char *metric_name, const char *modifier, |
1fd09e29 | 1232 | bool metric_no_group, bool metric_no_threshold, |
1725e9cd IR |
1233 | const char *user_requested_cpu_list, |
1234 | bool system_wide, | |
119e521a | 1235 | struct list_head *metric_list, |
f8ea2c15 | 1236 | const struct pmu_metrics_table *table) |
b18f3e36 | 1237 | { |
98461d9d | 1238 | LIST_HEAD(list); |
660842e4 | 1239 | int ret; |
90810399 | 1240 | bool has_match = false; |
b18f3e36 | 1241 | |
660842e4 IR |
1242 | { |
1243 | struct metricgroup__add_metric_data data = { | |
1244 | .list = &list, | |
bd3846d0 | 1245 | .pmu = pmu, |
660842e4 IR |
1246 | .metric_name = metric_name, |
1247 | .modifier = modifier, | |
1248 | .metric_no_group = metric_no_group, | |
1fd09e29 | 1249 | .metric_no_threshold = metric_no_threshold, |
1725e9cd IR |
1250 | .user_requested_cpu_list = user_requested_cpu_list, |
1251 | .system_wide = system_wide, | |
660842e4 IR |
1252 | .has_match = false, |
1253 | }; | |
1254 | /* | |
1255 | * Iterate over all metrics seeing if metric matches either the | |
1256 | * name or group. When it does add the metric to the list. | |
1257 | */ | |
4000519e | 1258 | ret = pmu_metrics_table__for_each_metric(table, metricgroup__add_metric_callback, |
db95818e | 1259 | &data); |
a29c164a | 1260 | if (ret) |
27adafcd | 1261 | goto out; |
ce391940 | 1262 | |
660842e4 IR |
1263 | has_match = data.has_match; |
1264 | } | |
be335ec2 JG |
1265 | { |
1266 | struct metricgroup_iter_data data = { | |
1267 | .fn = metricgroup__add_metric_sys_event_iter, | |
1268 | .data = (void *) &(struct metricgroup_add_iter_data) { | |
1269 | .metric_list = &list, | |
bd3846d0 | 1270 | .pmu = pmu, |
68074811 | 1271 | .metric_name = metric_name, |
b85a4d61 | 1272 | .modifier = modifier, |
be335ec2 | 1273 | .metric_no_group = metric_no_group, |
1725e9cd IR |
1274 | .user_requested_cpu_list = user_requested_cpu_list, |
1275 | .system_wide = system_wide, | |
be335ec2 JG |
1276 | .has_match = &has_match, |
1277 | .ret = &ret, | |
eeac7730 | 1278 | .table = table, |
be335ec2 JG |
1279 | }, |
1280 | }; | |
1281 | ||
db95818e | 1282 | pmu_for_each_sys_metric(metricgroup__sys_event_iter, &data); |
be335ec2 | 1283 | } |
ce391940 | 1284 | /* End of pmu events. */ |
5ecd5a0c | 1285 | if (!has_match) |
27adafcd | 1286 | ret = -EINVAL; |
98461d9d | 1287 | |
27adafcd NK |
1288 | out: |
1289 | /* | |
1290 | * add to metric_list so that they can be released | |
1291 | * even if it's failed | |
1292 | */ | |
119e521a | 1293 | list_splice(&list, metric_list); |
27adafcd | 1294 | return ret; |
b18f3e36 AK |
1295 | } |
1296 | ||
68074811 IR |
1297 | /** |
1298 | * metricgroup__add_metric_list - Find and add metrics, or metric groups, | |
1299 | * specified in a list. | |
bd3846d0 | 1300 | * @pmu: A pmu to restrict the metrics to, or "all" for all PMUS. |
68074811 IR |
1301 | * @list: the list of metrics or metric groups. For example, "IPC,CPI,TopDownL1" |
1302 | * would match the IPC and CPI metrics, and TopDownL1 would match all | |
1303 | * the metrics in the TopDownL1 group. | |
1304 | * @metric_no_group: Should events written to events be grouped "{}" or | |
1305 | * global. Grouping is the default but due to multiplexing the | |
1306 | * user may override. | |
1725e9cd IR |
1307 | * @user_requested_cpu_list: Command line specified CPUs to record on. |
1308 | * @system_wide: Are events for all processes recorded. | |
68074811 | 1309 | * @metric_list: The list that metrics are added to. |
eeac7730 | 1310 | * @table: The table that is searched for metrics, most commonly the table for the |
68074811 IR |
1311 | * architecture perf is running upon. |
1312 | */ | |
bd3846d0 IR |
1313 | static int metricgroup__add_metric_list(const char *pmu, const char *list, |
1314 | bool metric_no_group, | |
1fd09e29 | 1315 | bool metric_no_threshold, |
1725e9cd IR |
1316 | const char *user_requested_cpu_list, |
1317 | bool system_wide, struct list_head *metric_list, | |
f8ea2c15 | 1318 | const struct pmu_metrics_table *table) |
b18f3e36 | 1319 | { |
b85a4d61 | 1320 | char *list_itr, *list_copy, *metric_name, *modifier; |
ec5c5b3d | 1321 | int ret, count = 0; |
b18f3e36 | 1322 | |
b85a4d61 IR |
1323 | list_copy = strdup(list); |
1324 | if (!list_copy) | |
b18f3e36 | 1325 | return -ENOMEM; |
b85a4d61 | 1326 | list_itr = list_copy; |
411bc316 | 1327 | |
b85a4d61 IR |
1328 | while ((metric_name = strsep(&list_itr, ",")) != NULL) { |
1329 | modifier = strchr(metric_name, ':'); | |
1330 | if (modifier) | |
1331 | *modifier++ = '\0'; | |
1332 | ||
bd3846d0 | 1333 | ret = metricgroup__add_metric(pmu, metric_name, modifier, |
1fd09e29 IR |
1334 | metric_no_group, metric_no_threshold, |
1335 | user_requested_cpu_list, | |
1725e9cd | 1336 | system_wide, metric_list, table); |
ec5c5b3d | 1337 | if (ret == -EINVAL) |
b85a4d61 | 1338 | pr_err("Cannot find metric or group `%s'\n", metric_name); |
ec5c5b3d IR |
1339 | |
1340 | if (ret) | |
b18f3e36 | 1341 | break; |
ec5c5b3d IR |
1342 | |
1343 | count++; | |
b18f3e36 | 1344 | } |
b85a4d61 | 1345 | free(list_copy); |
ab483d8b | 1346 | |
ec5c5b3d IR |
1347 | if (!ret) { |
1348 | /* | |
1349 | * Warn about nmi_watchdog if any parsed metrics had the | |
1350 | * NO_NMI_WATCHDOG constraint. | |
1351 | */ | |
180a5013 | 1352 | metric__watchdog_constraint_hint(NULL, /*foot=*/true); |
ec5c5b3d IR |
1353 | /* No metrics. */ |
1354 | if (count == 0) | |
1355 | return -EINVAL; | |
1356 | } | |
b18f3e36 AK |
1357 | return ret; |
1358 | } | |
1359 | ||
119e521a | 1360 | static void metricgroup__free_metrics(struct list_head *metric_list) |
b18f3e36 | 1361 | { |
a0c05b36 | 1362 | struct metric *m, *tmp; |
b18f3e36 | 1363 | |
119e521a | 1364 | list_for_each_entry_safe (m, tmp, metric_list, nd) { |
a0c05b36 | 1365 | list_del_init(&m->nd); |
3d81d761 | 1366 | metric__free(m); |
b18f3e36 AK |
1367 | } |
1368 | } | |
1369 | ||
8586d274 IR |
1370 | /** |
1371 | * find_tool_events - Search for the pressence of tool events in metric_list. | |
1372 | * @metric_list: List to take metrics from. | |
1373 | * @tool_events: Array of false values, indices corresponding to tool events set | |
1374 | * to true if tool event is found. | |
1375 | */ | |
1376 | static void find_tool_events(const struct list_head *metric_list, | |
1377 | bool tool_events[PERF_TOOL_MAX]) | |
1378 | { | |
1379 | struct metric *m; | |
1380 | ||
1381 | list_for_each_entry(m, metric_list, nd) { | |
1382 | int i; | |
1383 | ||
1384 | perf_tool_event__for_each_event(i) { | |
1385 | struct expr_id_data *data; | |
1386 | ||
1387 | if (!tool_events[i] && | |
1388 | !expr__get_id(m->pctx, perf_tool_event__to_str(i), &data)) | |
1389 | tool_events[i] = true; | |
1390 | } | |
1391 | } | |
1392 | } | |
1393 | ||
5ecd5a0c | 1394 | /** |
180a5013 | 1395 | * build_combined_expr_ctx - Make an expr_parse_ctx with all !group_events |
5ecd5a0c IR |
1396 | * metric IDs, as the IDs are held in a set, |
1397 | * duplicates will be removed. | |
1398 | * @metric_list: List to take metrics from. | |
1399 | * @combined: Out argument for result. | |
1400 | */ | |
1401 | static int build_combined_expr_ctx(const struct list_head *metric_list, | |
1402 | struct expr_parse_ctx **combined) | |
1403 | { | |
1404 | struct hashmap_entry *cur; | |
1405 | size_t bkt; | |
1406 | struct metric *m; | |
1407 | char *dup; | |
1408 | int ret; | |
1409 | ||
1410 | *combined = expr__ctx_new(); | |
1411 | if (!*combined) | |
1412 | return -ENOMEM; | |
1413 | ||
1414 | list_for_each_entry(m, metric_list, nd) { | |
180a5013 | 1415 | if (!m->group_events && !m->modifier) { |
5ecd5a0c | 1416 | hashmap__for_each_entry(m->pctx->ids, cur, bkt) { |
c302378b | 1417 | dup = strdup(cur->pkey); |
5ecd5a0c IR |
1418 | if (!dup) { |
1419 | ret = -ENOMEM; | |
1420 | goto err_out; | |
1421 | } | |
1422 | ret = expr__add_id(*combined, dup); | |
1423 | if (ret) | |
1424 | goto err_out; | |
1425 | } | |
1426 | } | |
1427 | } | |
1428 | return 0; | |
1429 | err_out: | |
1430 | expr__ctx_free(*combined); | |
1431 | *combined = NULL; | |
1432 | return ret; | |
1433 | } | |
1434 | ||
1435 | /** | |
1436 | * parse_ids - Build the event string for the ids and parse them creating an | |
1437 | * evlist. The encoded metric_ids are decoded. | |
6b6b16b3 | 1438 | * @metric_no_merge: is metric sharing explicitly disabled. |
92532073 | 1439 | * @fake_pmu: use a fake PMU when testing metrics not supported by the current CPU. |
5ecd5a0c | 1440 | * @ids: the event identifiers parsed from a metric. |
b85a4d61 | 1441 | * @modifier: any modifiers added to the events. |
180a5013 | 1442 | * @group_events: should events be placed in a weak group. |
8586d274 IR |
1443 | * @tool_events: entries set true if the tool event of index could be present in |
1444 | * the overall list of metrics. | |
5ecd5a0c IR |
1445 | * @out_evlist: the created list of events. |
1446 | */ | |
92532073 | 1447 | static int parse_ids(bool metric_no_merge, bool fake_pmu, |
6b6b16b3 | 1448 | struct expr_parse_ctx *ids, const char *modifier, |
180a5013 | 1449 | bool group_events, const bool tool_events[PERF_TOOL_MAX], |
8586d274 | 1450 | struct evlist **out_evlist) |
5ecd5a0c IR |
1451 | { |
1452 | struct parse_events_error parse_error; | |
1453 | struct evlist *parsed_evlist; | |
1454 | struct strbuf events = STRBUF_INIT; | |
1455 | int ret; | |
1456 | ||
1457 | *out_evlist = NULL; | |
6b6b16b3 | 1458 | if (!metric_no_merge || hashmap__size(ids->ids) == 0) { |
c788ef61 | 1459 | bool added_event = false; |
9aa09230 | 1460 | int i; |
5ecd5a0c | 1461 | /* |
9aa09230 IR |
1462 | * We may fail to share events between metrics because a tool |
1463 | * event isn't present in one metric. For example, a ratio of | |
1464 | * cache misses doesn't need duration_time but the same events | |
1465 | * may be used for a misses per second. Events without sharing | |
1466 | * implies multiplexing, that is best avoided, so place | |
1467 | * all tool events in every group. | |
6b6b16b3 IR |
1468 | * |
1469 | * Also, there may be no ids/events in the expression parsing | |
1470 | * context because of constant evaluation, e.g.: | |
1471 | * event1 if #smt_on else 0 | |
9aa09230 | 1472 | * Add a tool event to avoid a parse error on an empty string. |
5ecd5a0c | 1473 | */ |
9aa09230 | 1474 | perf_tool_event__for_each_event(i) { |
8586d274 IR |
1475 | if (tool_events[i]) { |
1476 | char *tmp = strdup(perf_tool_event__to_str(i)); | |
5ecd5a0c | 1477 | |
8586d274 IR |
1478 | if (!tmp) |
1479 | return -ENOMEM; | |
1480 | ids__insert(ids->ids, tmp); | |
c788ef61 | 1481 | added_event = true; |
8586d274 | 1482 | } |
9aa09230 | 1483 | } |
c788ef61 IR |
1484 | if (!added_event && hashmap__size(ids->ids) == 0) { |
1485 | char *tmp = strdup("duration_time"); | |
1486 | ||
1487 | if (!tmp) | |
1488 | return -ENOMEM; | |
1489 | ids__insert(ids->ids, tmp); | |
1490 | } | |
5ecd5a0c | 1491 | } |
b85a4d61 | 1492 | ret = metricgroup__build_event_string(&events, ids, modifier, |
180a5013 | 1493 | group_events); |
5ecd5a0c IR |
1494 | if (ret) |
1495 | return ret; | |
1496 | ||
1497 | parsed_evlist = evlist__new(); | |
1498 | if (!parsed_evlist) { | |
1499 | ret = -ENOMEM; | |
1500 | goto err_out; | |
1501 | } | |
1502 | pr_debug("Parsing metric events '%s'\n", events.buf); | |
07eafd4e | 1503 | parse_events_error__init(&parse_error); |
411ad22e | 1504 | ret = __parse_events(parsed_evlist, events.buf, /*pmu_filter=*/NULL, |
a2a6604e DM |
1505 | &parse_error, fake_pmu, /*warn_if_reordered=*/false, |
1506 | /*fake_tp=*/false); | |
5ecd5a0c | 1507 | if (ret) { |
6c191289 | 1508 | parse_events_error__print(&parse_error, events.buf); |
5ecd5a0c IR |
1509 | goto err_out; |
1510 | } | |
b85a4d61 | 1511 | ret = decode_all_metric_ids(parsed_evlist, modifier); |
5ecd5a0c IR |
1512 | if (ret) |
1513 | goto err_out; | |
1514 | ||
1515 | *out_evlist = parsed_evlist; | |
1516 | parsed_evlist = NULL; | |
1517 | err_out: | |
07eafd4e | 1518 | parse_events_error__exit(&parse_error); |
5ecd5a0c IR |
1519 | evlist__delete(parsed_evlist); |
1520 | strbuf_release(&events); | |
1521 | return ret; | |
1522 | } | |
1523 | ||
bd3846d0 IR |
1524 | static int parse_groups(struct evlist *perf_evlist, |
1525 | const char *pmu, const char *str, | |
8b4468a2 JO |
1526 | bool metric_no_group, |
1527 | bool metric_no_merge, | |
1fd09e29 | 1528 | bool metric_no_threshold, |
1725e9cd IR |
1529 | const char *user_requested_cpu_list, |
1530 | bool system_wide, | |
92532073 | 1531 | bool fake_pmu, |
5ecd5a0c | 1532 | struct rblist *metric_events_list, |
f8ea2c15 | 1533 | const struct pmu_metrics_table *table) |
b18f3e36 | 1534 | { |
5ecd5a0c | 1535 | struct evlist *combined_evlist = NULL; |
119e521a | 1536 | LIST_HEAD(metric_list); |
5ecd5a0c | 1537 | struct metric *m; |
8586d274 | 1538 | bool tool_events[PERF_TOOL_MAX] = {false}; |
1c0e4795 | 1539 | bool is_default = !strcmp(str, "Default"); |
b18f3e36 AK |
1540 | int ret; |
1541 | ||
5ecd5a0c IR |
1542 | if (metric_events_list->nr_entries == 0) |
1543 | metricgroup__rblist_init(metric_events_list); | |
bd3846d0 | 1544 | ret = metricgroup__add_metric_list(pmu, str, metric_no_group, metric_no_threshold, |
1725e9cd IR |
1545 | user_requested_cpu_list, |
1546 | system_wide, &metric_list, table); | |
b18f3e36 | 1547 | if (ret) |
4f57a1ed | 1548 | goto out; |
5ecd5a0c IR |
1549 | |
1550 | /* Sort metrics from largest to smallest. */ | |
1551 | list_sort(NULL, &metric_list, metric_list_cmp); | |
1552 | ||
1553 | if (!metric_no_merge) { | |
1554 | struct expr_parse_ctx *combined = NULL; | |
1555 | ||
8586d274 IR |
1556 | find_tool_events(&metric_list, tool_events); |
1557 | ||
5ecd5a0c IR |
1558 | ret = build_combined_expr_ctx(&metric_list, &combined); |
1559 | ||
1560 | if (!ret && combined && hashmap__size(combined->ids)) { | |
6b6b16b3 IR |
1561 | ret = parse_ids(metric_no_merge, fake_pmu, combined, |
1562 | /*modifier=*/NULL, | |
180a5013 | 1563 | /*group_events=*/false, |
8586d274 | 1564 | tool_events, |
17b3867d | 1565 | &combined_evlist); |
5ecd5a0c IR |
1566 | } |
1567 | if (combined) | |
1568 | expr__ctx_free(combined); | |
1569 | ||
1570 | if (ret) | |
1571 | goto out; | |
1572 | } | |
1573 | ||
1c0e4795 KL |
1574 | if (is_default) |
1575 | list_sort(NULL, &metric_list, default_metricgroup_cmp); | |
1576 | ||
5ecd5a0c IR |
1577 | list_for_each_entry(m, &metric_list, nd) { |
1578 | struct metric_event *me; | |
1579 | struct evsel **metric_events; | |
1580 | struct evlist *metric_evlist = NULL; | |
1581 | struct metric *n; | |
1582 | struct metric_expr *expr; | |
1583 | ||
180a5013 | 1584 | if (combined_evlist && !m->group_events) { |
5ecd5a0c IR |
1585 | metric_evlist = combined_evlist; |
1586 | } else if (!metric_no_merge) { | |
1587 | /* | |
1588 | * See if the IDs for this metric are a subset of an | |
1589 | * earlier metric. | |
1590 | */ | |
1591 | list_for_each_entry(n, &metric_list, nd) { | |
1592 | if (m == n) | |
1593 | break; | |
1594 | ||
1595 | if (n->evlist == NULL) | |
1596 | continue; | |
1597 | ||
b85a4d61 IR |
1598 | if ((!m->modifier && n->modifier) || |
1599 | (m->modifier && !n->modifier) || | |
1600 | (m->modifier && n->modifier && | |
1601 | strcmp(m->modifier, n->modifier))) | |
1602 | continue; | |
1603 | ||
bd3846d0 IR |
1604 | if ((!m->pmu && n->pmu) || |
1605 | (m->pmu && !n->pmu) || | |
1606 | (m->pmu && n->pmu && strcmp(m->pmu, n->pmu))) | |
1607 | continue; | |
1608 | ||
5ecd5a0c IR |
1609 | if (expr__subset_of_ids(n->pctx, m->pctx)) { |
1610 | pr_debug("Events in '%s' fully contained within '%s'\n", | |
1611 | m->metric_name, n->metric_name); | |
1612 | metric_evlist = n->evlist; | |
1613 | break; | |
1614 | } | |
1615 | ||
1616 | } | |
1617 | } | |
1618 | if (!metric_evlist) { | |
17b3867d | 1619 | ret = parse_ids(metric_no_merge, fake_pmu, m->pctx, m->modifier, |
180a5013 | 1620 | m->group_events, tool_events, &m->evlist); |
5ecd5a0c IR |
1621 | if (ret) |
1622 | goto out; | |
1623 | ||
1624 | metric_evlist = m->evlist; | |
1625 | } | |
bd3846d0 IR |
1626 | ret = setup_metric_events(fake_pmu ? "all" : m->pmu, m->pctx->ids, |
1627 | metric_evlist, &metric_events); | |
5ecd5a0c | 1628 | if (ret) { |
8a4859c5 | 1629 | pr_err("Cannot resolve IDs for %s: %s\n", |
5ecd5a0c IR |
1630 | m->metric_name, m->metric_expr); |
1631 | goto out; | |
1632 | } | |
1633 | ||
1634 | me = metricgroup__lookup(metric_events_list, metric_events[0], true); | |
1635 | ||
1636 | expr = malloc(sizeof(struct metric_expr)); | |
1637 | if (!expr) { | |
1638 | ret = -ENOMEM; | |
1639 | free(metric_events); | |
1640 | goto out; | |
1641 | } | |
1642 | ||
1643 | expr->metric_refs = m->metric_refs; | |
1644 | m->metric_refs = NULL; | |
1645 | expr->metric_expr = m->metric_expr; | |
b85a4d61 IR |
1646 | if (m->modifier) { |
1647 | char *tmp; | |
1648 | ||
1649 | if (asprintf(&tmp, "%s:%s", m->metric_name, m->modifier) < 0) | |
1650 | expr->metric_name = NULL; | |
1651 | else | |
1652 | expr->metric_name = tmp; | |
1653 | } else | |
1654 | expr->metric_name = strdup(m->metric_name); | |
1655 | ||
1656 | if (!expr->metric_name) { | |
1657 | ret = -ENOMEM; | |
1658 | free(metric_events); | |
1659 | goto out; | |
1660 | } | |
d0a3052f | 1661 | expr->metric_threshold = m->metric_threshold; |
5ecd5a0c IR |
1662 | expr->metric_unit = m->metric_unit; |
1663 | expr->metric_events = metric_events; | |
1a6abdde | 1664 | expr->runtime = m->pctx->sctx.runtime; |
1c0e4795 KL |
1665 | expr->default_metricgroup_name = m->default_metricgroup_name; |
1666 | me->is_default = is_default; | |
5ecd5a0c IR |
1667 | list_add(&expr->nd, &me->head); |
1668 | } | |
1669 | ||
1670 | ||
aba8c5e3 | 1671 | if (combined_evlist) { |
5ecd5a0c | 1672 | evlist__splice_list_tail(perf_evlist, &combined_evlist->core.entries); |
aba8c5e3 IR |
1673 | evlist__delete(combined_evlist); |
1674 | } | |
5ecd5a0c IR |
1675 | |
1676 | list_for_each_entry(m, &metric_list, nd) { | |
1677 | if (m->evlist) | |
1678 | evlist__splice_list_tail(perf_evlist, &m->evlist->core.entries); | |
b18f3e36 | 1679 | } |
ec5c5b3d | 1680 | |
b18f3e36 | 1681 | out: |
119e521a | 1682 | metricgroup__free_metrics(&metric_list); |
b18f3e36 AK |
1683 | return ret; |
1684 | } | |
742d92ff | 1685 | |
a4b8cfca | 1686 | int metricgroup__parse_groups(struct evlist *perf_evlist, |
dae47d39 | 1687 | const char *pmu, |
8b4468a2 JO |
1688 | const char *str, |
1689 | bool metric_no_group, | |
1690 | bool metric_no_merge, | |
1fd09e29 | 1691 | bool metric_no_threshold, |
1725e9cd IR |
1692 | const char *user_requested_cpu_list, |
1693 | bool system_wide, | |
03f23570 | 1694 | bool hardware_aware_grouping, |
8b4468a2 JO |
1695 | struct rblist *metric_events) |
1696 | { | |
f8ea2c15 | 1697 | const struct pmu_metrics_table *table = pmu_metrics_table__find(); |
8b4468a2 | 1698 | |
3f5df3ac IR |
1699 | if (!table) |
1700 | return -EINVAL; | |
03f23570 WW |
1701 | if (hardware_aware_grouping) |
1702 | pr_debug("Use hardware aware grouping instead of traditional metric grouping method\n"); | |
3f5df3ac | 1703 | |
dae47d39 | 1704 | return parse_groups(perf_evlist, pmu, str, metric_no_group, metric_no_merge, |
1fd09e29 | 1705 | metric_no_threshold, user_requested_cpu_list, system_wide, |
92532073 | 1706 | /*fake_pmu=*/false, metric_events, table); |
8b4468a2 JO |
1707 | } |
1708 | ||
f78ac00a | 1709 | int metricgroup__parse_groups_test(struct evlist *evlist, |
f8ea2c15 | 1710 | const struct pmu_metrics_table *table, |
f78ac00a | 1711 | const char *str, |
f78ac00a JO |
1712 | struct rblist *metric_events) |
1713 | { | |
bd3846d0 | 1714 | return parse_groups(evlist, "all", str, |
1fd09e29 IR |
1715 | /*metric_no_group=*/false, |
1716 | /*metric_no_merge=*/false, | |
1717 | /*metric_no_threshold=*/false, | |
1725e9cd IR |
1718 | /*user_requested_cpu_list=*/NULL, |
1719 | /*system_wide=*/false, | |
92532073 | 1720 | /*fake_pmu=*/true, metric_events, table); |
f78ac00a JO |
1721 | } |
1722 | ||
bd3846d0 IR |
1723 | struct metricgroup__has_metric_data { |
1724 | const char *pmu; | |
1725 | const char *metric; | |
1726 | }; | |
db95818e | 1727 | static int metricgroup__has_metric_callback(const struct pmu_metric *pm, |
f8ea2c15 | 1728 | const struct pmu_metrics_table *table __maybe_unused, |
660842e4 IR |
1729 | void *vdata) |
1730 | { | |
bd3846d0 | 1731 | struct metricgroup__has_metric_data *data = vdata; |
660842e4 | 1732 | |
bd3846d0 | 1733 | return match_pm_metric(pm, data->pmu, data->metric) ? 1 : 0; |
660842e4 IR |
1734 | } |
1735 | ||
bd3846d0 | 1736 | bool metricgroup__has_metric(const char *pmu, const char *metric) |
742d92ff | 1737 | { |
f8ea2c15 | 1738 | const struct pmu_metrics_table *table = pmu_metrics_table__find(); |
bd3846d0 IR |
1739 | struct metricgroup__has_metric_data data = { |
1740 | .pmu = pmu, | |
1741 | .metric = metric, | |
1742 | }; | |
742d92ff | 1743 | |
eeac7730 | 1744 | if (!table) |
742d92ff TR |
1745 | return false; |
1746 | ||
4000519e | 1747 | return pmu_metrics_table__for_each_metric(table, metricgroup__has_metric_callback, &data) |
bd3846d0 | 1748 | ? true : false; |
742d92ff | 1749 | } |
b214ba8c | 1750 | |
1647cd5b IR |
1751 | static int metricgroup__topdown_max_level_callback(const struct pmu_metric *pm, |
1752 | const struct pmu_metrics_table *table __maybe_unused, | |
1753 | void *data) | |
1754 | { | |
1755 | unsigned int *max_level = data; | |
1756 | unsigned int level; | |
9dde1276 | 1757 | const char *p = strstr(pm->metric_group ?: "", "TopdownL"); |
1647cd5b IR |
1758 | |
1759 | if (!p || p[8] == '\0') | |
1760 | return 0; | |
1761 | ||
1762 | level = p[8] - '0'; | |
1763 | if (level > *max_level) | |
1764 | *max_level = level; | |
1765 | ||
1766 | return 0; | |
1767 | } | |
1768 | ||
1769 | unsigned int metricgroups__topdown_max_level(void) | |
1770 | { | |
1771 | unsigned int max_level = 0; | |
1772 | const struct pmu_metrics_table *table = pmu_metrics_table__find(); | |
1773 | ||
1774 | if (!table) | |
1775 | return false; | |
1776 | ||
4000519e | 1777 | pmu_metrics_table__for_each_metric(table, metricgroup__topdown_max_level_callback, |
1647cd5b IR |
1778 | &max_level); |
1779 | return max_level; | |
1780 | } | |
1781 | ||
b214ba8c NK |
1782 | int metricgroup__copy_metric_events(struct evlist *evlist, struct cgroup *cgrp, |
1783 | struct rblist *new_metric_events, | |
1784 | struct rblist *old_metric_events) | |
1785 | { | |
84f879c5 | 1786 | unsigned int i; |
b214ba8c NK |
1787 | |
1788 | for (i = 0; i < rblist__nr_entries(old_metric_events); i++) { | |
1789 | struct rb_node *nd; | |
1790 | struct metric_event *old_me, *new_me; | |
1791 | struct metric_expr *old_expr, *new_expr; | |
1792 | struct evsel *evsel; | |
1793 | size_t alloc_size; | |
1794 | int idx, nr; | |
1795 | ||
1796 | nd = rblist__entry(old_metric_events, i); | |
1797 | old_me = container_of(nd, struct metric_event, nd); | |
1798 | ||
38fe0e01 | 1799 | evsel = evlist__find_evsel(evlist, old_me->evsel->core.idx); |
b214ba8c NK |
1800 | if (!evsel) |
1801 | return -EINVAL; | |
1802 | new_me = metricgroup__lookup(new_metric_events, evsel, true); | |
1803 | if (!new_me) | |
1804 | return -ENOMEM; | |
1805 | ||
1806 | pr_debug("copying metric event for cgroup '%s': %s (idx=%d)\n", | |
38fe0e01 | 1807 | cgrp ? cgrp->name : "root", evsel->name, evsel->core.idx); |
b214ba8c NK |
1808 | |
1809 | list_for_each_entry(old_expr, &old_me->head, nd) { | |
1810 | new_expr = malloc(sizeof(*new_expr)); | |
1811 | if (!new_expr) | |
1812 | return -ENOMEM; | |
1813 | ||
1814 | new_expr->metric_expr = old_expr->metric_expr; | |
6c73f819 | 1815 | new_expr->metric_threshold = old_expr->metric_threshold; |
b85a4d61 IR |
1816 | new_expr->metric_name = strdup(old_expr->metric_name); |
1817 | if (!new_expr->metric_name) | |
1818 | return -ENOMEM; | |
1819 | ||
b214ba8c NK |
1820 | new_expr->metric_unit = old_expr->metric_unit; |
1821 | new_expr->runtime = old_expr->runtime; | |
1822 | ||
1823 | if (old_expr->metric_refs) { | |
1824 | /* calculate number of metric_events */ | |
1825 | for (nr = 0; old_expr->metric_refs[nr].metric_name; nr++) | |
1826 | continue; | |
1827 | alloc_size = sizeof(*new_expr->metric_refs); | |
1828 | new_expr->metric_refs = calloc(nr + 1, alloc_size); | |
1829 | if (!new_expr->metric_refs) { | |
1830 | free(new_expr); | |
1831 | return -ENOMEM; | |
1832 | } | |
1833 | ||
1834 | memcpy(new_expr->metric_refs, old_expr->metric_refs, | |
1835 | nr * alloc_size); | |
1836 | } else { | |
1837 | new_expr->metric_refs = NULL; | |
1838 | } | |
1839 | ||
1840 | /* calculate number of metric_events */ | |
1841 | for (nr = 0; old_expr->metric_events[nr]; nr++) | |
1842 | continue; | |
1843 | alloc_size = sizeof(*new_expr->metric_events); | |
1844 | new_expr->metric_events = calloc(nr + 1, alloc_size); | |
1845 | if (!new_expr->metric_events) { | |
11ff9bcd | 1846 | zfree(&new_expr->metric_refs); |
b214ba8c NK |
1847 | free(new_expr); |
1848 | return -ENOMEM; | |
1849 | } | |
1850 | ||
1851 | /* copy evsel in the same position */ | |
1852 | for (idx = 0; idx < nr; idx++) { | |
1853 | evsel = old_expr->metric_events[idx]; | |
38fe0e01 | 1854 | evsel = evlist__find_evsel(evlist, evsel->core.idx); |
b214ba8c | 1855 | if (evsel == NULL) { |
11ff9bcd ACM |
1856 | zfree(&new_expr->metric_events); |
1857 | zfree(&new_expr->metric_refs); | |
b214ba8c NK |
1858 | free(new_expr); |
1859 | return -EINVAL; | |
1860 | } | |
1861 | new_expr->metric_events[idx] = evsel; | |
1862 | } | |
1863 | ||
1864 | list_add(&new_expr->nd, &new_me->head); | |
1865 | } | |
1866 | } | |
1867 | return 0; | |
1868 | } |