xref: /openbmc/linux/tools/perf/arch/x86/util/evlist.c (revision 234489ac)
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 #include "util/event.h"
7 #include "util/pmu-hybrid.h"
8 #include "topdown.h"
9 
10 static int ___evlist__add_default_attrs(struct evlist *evlist,
11 					struct perf_event_attr *attrs,
12 					size_t nr_attrs)
13 {
14 	struct perf_cpu_map *cpus;
15 	struct evsel *evsel, *n;
16 	struct perf_pmu *pmu;
17 	LIST_HEAD(head);
18 	size_t i = 0;
19 
20 	for (i = 0; i < nr_attrs; i++)
21 		event_attr_init(attrs + i);
22 
23 	if (!perf_pmu__has_hybrid())
24 		return evlist__add_attrs(evlist, attrs, nr_attrs);
25 
26 	for (i = 0; i < nr_attrs; i++) {
27 		if (attrs[i].type == PERF_TYPE_SOFTWARE) {
28 			evsel = evsel__new(attrs + i);
29 			if (evsel == NULL)
30 				goto out_delete_partial_list;
31 			list_add_tail(&evsel->core.node, &head);
32 			continue;
33 		}
34 
35 		perf_pmu__for_each_hybrid_pmu(pmu) {
36 			evsel = evsel__new(attrs + i);
37 			if (evsel == NULL)
38 				goto out_delete_partial_list;
39 			evsel->core.attr.config |= (__u64)pmu->type << PERF_PMU_TYPE_SHIFT;
40 			cpus = perf_cpu_map__get(pmu->cpus);
41 			evsel->core.cpus = cpus;
42 			evsel->core.own_cpus = perf_cpu_map__get(cpus);
43 			evsel->pmu_name = strdup(pmu->name);
44 			list_add_tail(&evsel->core.node, &head);
45 		}
46 	}
47 
48 	evlist__splice_list_tail(evlist, &head);
49 
50 	return 0;
51 
52 out_delete_partial_list:
53 	__evlist__for_each_entry_safe(&head, n, evsel)
54 		evsel__delete(evsel);
55 	return -1;
56 }
57 
58 int arch_evlist__add_default_attrs(struct evlist *evlist,
59 				   struct perf_event_attr *attrs,
60 				   size_t nr_attrs)
61 {
62 	if (!nr_attrs)
63 		return 0;
64 
65 	return ___evlist__add_default_attrs(evlist, attrs, nr_attrs);
66 }
67 
68 int arch_evlist__cmp(const struct evsel *lhs, const struct evsel *rhs)
69 {
70 	if (topdown_sys_has_perf_metrics() &&
71 	    (!lhs->pmu_name || !strncmp(lhs->pmu_name, "cpu", 3))) {
72 		/* Ensure the topdown slots comes first. */
73 		if (strcasestr(lhs->name, "slots"))
74 			return -1;
75 		if (strcasestr(rhs->name, "slots"))
76 			return 1;
77 		/* Followed by topdown events. */
78 		if (strcasestr(lhs->name, "topdown") && !strcasestr(rhs->name, "topdown"))
79 			return -1;
80 		if (!strcasestr(lhs->name, "topdown") && strcasestr(rhs->name, "topdown"))
81 			return 1;
82 	}
83 
84 	/* Default ordering by insertion index. */
85 	return lhs->core.idx - rhs->core.idx;
86 }
87