xref: /openbmc/linux/tools/perf/arch/x86/util/evlist.c (revision aadaeca4)
1 // SPDX-License-Identifier: GPL-2.0
2 #include <stdio.h>
3 #include "util/pmu.h"
4 #include "util/evlist.h"
5 #include "util/parse-events.h"
6 
7 #define TOPDOWN_L1_EVENTS	"{slots,topdown-retiring,topdown-bad-spec,topdown-fe-bound,topdown-be-bound}"
8 #define TOPDOWN_L2_EVENTS	"{slots,topdown-retiring,topdown-bad-spec,topdown-fe-bound,topdown-be-bound,topdown-heavy-ops,topdown-br-mispredict,topdown-fetch-lat,topdown-mem-bound}"
9 
10 int arch_evlist__add_default_attrs(struct evlist *evlist)
11 {
12 	if (!pmu_have_event("cpu", "slots"))
13 		return 0;
14 
15 	if (pmu_have_event("cpu", "topdown-heavy-ops"))
16 		return parse_events(evlist, TOPDOWN_L2_EVENTS, NULL);
17 	else
18 		return parse_events(evlist, TOPDOWN_L1_EVENTS, NULL);
19 }
20 
21 struct evsel *arch_evlist__leader(struct list_head *list)
22 {
23 	struct evsel *evsel, *first, *slots = NULL;
24 	bool has_topdown = false;
25 
26 	first = list_first_entry(list, struct evsel, core.node);
27 
28 	if (!pmu_have_event("cpu", "slots"))
29 		return first;
30 
31 	/* If there is a slots event and a topdown event then the slots event comes first. */
32 	__evlist__for_each_entry(list, evsel) {
33 		if (evsel->pmu_name && !strcmp(evsel->pmu_name, "cpu") && evsel->name) {
34 			if (strcasestr(evsel->name, "slots")) {
35 				slots = evsel;
36 				if (slots == first)
37 					return first;
38 			}
39 			if (!strncasecmp(evsel->name, "topdown", 7))
40 				has_topdown = true;
41 			if (slots && has_topdown)
42 				return slots;
43 		}
44 	}
45 	return first;
46 }
47