1 files changed, 93 insertions, 0 deletions
diff --git a/tools/perf/arch/x86/util/evlist.c b/tools/perf/arch/x86/util/evlist.c
new file mode 100644
index 000000000..cb59ce9b9
--- /dev/null
+++ b/tools/perf/arch/x86/util/evlist.c
@@ -0,0 +1,93 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <stdio.h>
+#include "util/pmu.h"
+#include "util/evlist.h"
+#include "util/parse-events.h"
+#include "util/event.h"
+#include "util/pmu-hybrid.h"
+#include "topdown.h"
+
+static int ___evlist__add_default_attrs(struct evlist *evlist,
+					struct perf_event_attr *attrs,
+					size_t nr_attrs)
+{
+	struct perf_cpu_map *cpus;
+	struct evsel *evsel, *n;
+	struct perf_pmu *pmu;
+	LIST_HEAD(head);
+	size_t i = 0;
+
+	for (i = 0; i < nr_attrs; i++)
+		event_attr_init(attrs + i);
+
+	if (!perf_pmu__has_hybrid())
+		return evlist__add_attrs(evlist, attrs, nr_attrs);
+
+	for (i = 0; i < nr_attrs; i++) {
+		if (attrs[i].type == PERF_TYPE_SOFTWARE) {
+			evsel = evsel__new(attrs + i);
+			if (evsel == NULL)
+				goto out_delete_partial_list;
+			list_add_tail(&evsel->core.node, &head);
+			continue;
+		}
+
+		perf_pmu__for_each_hybrid_pmu(pmu) {
+			evsel = evsel__new(attrs + i);
+			if (evsel == NULL)
+				goto out_delete_partial_list;
+			evsel->core.attr.config |= (__u64)pmu->type << PERF_PMU_TYPE_SHIFT;
+			cpus = perf_cpu_map__get(pmu->cpus);
+			evsel->core.cpus = cpus;
+			evsel->core.own_cpus = perf_cpu_map__get(cpus);
+			evsel->pmu_name = strdup(pmu->name);
+			list_add_tail(&evsel->core.node, &head);
+		}
+	}
+
+	evlist__splice_list_tail(evlist, &head);
+
+	return 0;
+
+out_delete_partial_list:
+	__evlist__for_each_entry_safe(&head, n, evsel)
+		evsel__delete(evsel);
+	return -1;
+}
+
+int arch_evlist__add_default_attrs(struct evlist *evlist,
+				   struct perf_event_attr *attrs,
+				   size_t nr_attrs)
+{
+	if (nr_attrs)
+		return ___evlist__add_default_attrs(evlist, attrs, nr_attrs);
+
+	return topdown_parse_events(evlist);
+}
+
+struct evsel *arch_evlist__leader(struct list_head *list)
+{
+	struct evsel *evsel, *first, *slots = NULL;
+	bool has_topdown = false;
+
+	first = list_first_entry(list, struct evsel, core.node);
+
+	if (!topdown_sys_has_perf_metrics())
+		return first;
+
+	/* If there is a slots event and a topdown event then the slots event comes first. */
+	__evlist__for_each_entry(list, evsel) {
+		if (evsel->pmu_name && !strncmp(evsel->pmu_name, "cpu", 3) && evsel->name) {
+			if (strcasestr(evsel->name, "slots")) {
+				slots = evsel;
+				if (slots == first)
+					return first;
+			}
+			if (strcasestr(evsel->name, "topdown"))
+				has_topdown = true;
+			if (slots && has_topdown)
+				return slots;
+		}
+	}
+	return first;
+}