xref: /openbmc/linux/tools/perf/tests/cpumap.c (revision 4da722ca)
1 #include "tests.h"
2 #include <stdio.h>
3 #include "cpumap.h"
4 #include "event.h"
5 #include <string.h>
6 #include <linux/bitops.h>
7 #include "debug.h"
8 
9 struct machine;
10 
11 static int process_event_mask(struct perf_tool *tool __maybe_unused,
12 			 union perf_event *event,
13 			 struct perf_sample *sample __maybe_unused,
14 			 struct machine *machine __maybe_unused)
15 {
16 	struct cpu_map_event *map_event = &event->cpu_map;
17 	struct cpu_map_mask *mask;
18 	struct cpu_map_data *data;
19 	struct cpu_map *map;
20 	int i;
21 
22 	data = &map_event->data;
23 
24 	TEST_ASSERT_VAL("wrong type", data->type == PERF_CPU_MAP__MASK);
25 
26 	mask = (struct cpu_map_mask *)data->data;
27 
28 	TEST_ASSERT_VAL("wrong nr",   mask->nr == 1);
29 
30 	for (i = 0; i < 20; i++) {
31 		TEST_ASSERT_VAL("wrong cpu", test_bit(i, mask->mask));
32 	}
33 
34 	map = cpu_map__new_data(data);
35 	TEST_ASSERT_VAL("wrong nr",  map->nr == 20);
36 
37 	for (i = 0; i < 20; i++) {
38 		TEST_ASSERT_VAL("wrong cpu", map->map[i] == i);
39 	}
40 
41 	cpu_map__put(map);
42 	return 0;
43 }
44 
45 static int process_event_cpus(struct perf_tool *tool __maybe_unused,
46 			 union perf_event *event,
47 			 struct perf_sample *sample __maybe_unused,
48 			 struct machine *machine __maybe_unused)
49 {
50 	struct cpu_map_event *map_event = &event->cpu_map;
51 	struct cpu_map_entries *cpus;
52 	struct cpu_map_data *data;
53 	struct cpu_map *map;
54 
55 	data = &map_event->data;
56 
57 	TEST_ASSERT_VAL("wrong type", data->type == PERF_CPU_MAP__CPUS);
58 
59 	cpus = (struct cpu_map_entries *)data->data;
60 
61 	TEST_ASSERT_VAL("wrong nr",   cpus->nr == 2);
62 	TEST_ASSERT_VAL("wrong cpu",  cpus->cpu[0] == 1);
63 	TEST_ASSERT_VAL("wrong cpu",  cpus->cpu[1] == 256);
64 
65 	map = cpu_map__new_data(data);
66 	TEST_ASSERT_VAL("wrong nr",  map->nr == 2);
67 	TEST_ASSERT_VAL("wrong cpu", map->map[0] == 1);
68 	TEST_ASSERT_VAL("wrong cpu", map->map[1] == 256);
69 	TEST_ASSERT_VAL("wrong refcnt", refcount_read(&map->refcnt) == 1);
70 	cpu_map__put(map);
71 	return 0;
72 }
73 
74 
75 int test__cpu_map_synthesize(int subtest __maybe_unused)
76 {
77 	struct cpu_map *cpus;
78 
79 	/* This one is better stores in mask. */
80 	cpus = cpu_map__new("0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19");
81 
82 	TEST_ASSERT_VAL("failed to synthesize map",
83 		!perf_event__synthesize_cpu_map(NULL, cpus, process_event_mask, NULL));
84 
85 	cpu_map__put(cpus);
86 
87 	/* This one is better stores in cpu values. */
88 	cpus = cpu_map__new("1,256");
89 
90 	TEST_ASSERT_VAL("failed to synthesize map",
91 		!perf_event__synthesize_cpu_map(NULL, cpus, process_event_cpus, NULL));
92 
93 	cpu_map__put(cpus);
94 	return 0;
95 }
96 
97 static int cpu_map_print(const char *str)
98 {
99 	struct cpu_map *map = cpu_map__new(str);
100 	char buf[100];
101 
102 	if (!map)
103 		return -1;
104 
105 	cpu_map__snprint(map, buf, sizeof(buf));
106 	return !strcmp(buf, str);
107 }
108 
109 int test__cpu_map_print(int subtest __maybe_unused)
110 {
111 	TEST_ASSERT_VAL("failed to convert map", cpu_map_print("1"));
112 	TEST_ASSERT_VAL("failed to convert map", cpu_map_print("1,5"));
113 	TEST_ASSERT_VAL("failed to convert map", cpu_map_print("1,3,5,7,9,11,13,15,17,19,21-40"));
114 	TEST_ASSERT_VAL("failed to convert map", cpu_map_print("2-5"));
115 	TEST_ASSERT_VAL("failed to convert map", cpu_map_print("1,3-6,8-10,24,35-37"));
116 	TEST_ASSERT_VAL("failed to convert map", cpu_map_print("1,3-6,8-10,24,35-37"));
117 	TEST_ASSERT_VAL("failed to convert map", cpu_map_print("1-10,12-20,22-30,32-40"));
118 	return 0;
119 }
120