1// SPDX-License-Identifier: GPL-2.0
2
3#include <internal/cpumap.h>
4#include "../../../util/cpumap.h"
5#include "../../../util/header.h"
6#include "../../../util/pmu.h"
7#include "../../../util/pmus.h"
8#include <api/fs/fs.h>
9#include <math.h>
10
11const struct pmu_metrics_table *pmu_metrics_table__find(void)
12{
13	struct perf_pmu *pmu = pmu__find_core_pmu();
14
15	if (pmu)
16		return perf_pmu__find_metrics_table(pmu);
17
18	return NULL;
19}
20
21const struct pmu_events_table *pmu_events_table__find(void)
22{
23	struct perf_pmu *pmu = pmu__find_core_pmu();
24
25	if (pmu)
26		return perf_pmu__find_events_table(pmu);
27
28	return NULL;
29}
30
31double perf_pmu__cpu_slots_per_cycle(void)
32{
33	char path[PATH_MAX];
34	unsigned long long slots = 0;
35	struct perf_pmu *pmu = pmu__find_core_pmu();
36
37	if (pmu) {
38		perf_pmu__pathname_scnprintf(path, sizeof(path),
39					     pmu->name, "caps/slots");
40		/*
41		 * The value of slots is not greater than 32 bits, but
42		 * filename__read_int can't read value with 0x prefix,
43		 * so use filename__read_ull instead.
44		 */
45		filename__read_ull(path, &slots);
46	}
47
48	return slots ? (double)slots : NAN;
49}
50