tools/perf/tests/cpumap.c

   1 #include "tests.h"
   2 #include "cpumap.h"
   3
   4 static int process_event_mask(struct perf_tool *tool __maybe_unused,
   5                          union perf_event *event,
   6                          struct perf_sample *sample __maybe_unused,
   7                          struct machine *machine __maybe_unused)
   8 {
   9         struct cpu_map_event *map_event = &event->cpu_map;
  10         struct cpu_map_mask *mask;
  11         struct cpu_map_data *data;
  12         struct cpu_map *map;
  13         int i;
  14
  15         data = &map_event->data;
  16
  17         TEST_ASSERT_VAL("wrong type", data->type == PERF_CPU_MAP__MASK);
  18
  19         mask = (struct cpu_map_mask *)data->data;
  20
  21         TEST_ASSERT_VAL("wrong nr",   mask->nr == 1);
  22
  23         for (i = 0; i < 20; i++) {
  24                 TEST_ASSERT_VAL("wrong cpu", test_bit(i, mask->mask));
  25         }
  26
  27         map = cpu_map__new_data(data);
  28         TEST_ASSERT_VAL("wrong nr",  map->nr == 20);
  29
  30         for (i = 0; i < 20; i++) {
  31                 TEST_ASSERT_VAL("wrong cpu", map->map[i] == i);
  32         }
  33
  34         cpu_map__put(map);
  35         return 0;
  36 }
  37
  38 static int process_event_cpus(struct perf_tool *tool __maybe_unused,
  39                          union perf_event *event,
  40                          struct perf_sample *sample __maybe_unused,
  41                          struct machine *machine __maybe_unused)
  42 {
  43         struct cpu_map_event *map_event = &event->cpu_map;
  44         struct cpu_map_entries *cpus;
  45         struct cpu_map_data *data;
  46         struct cpu_map *map;
  47
  48         data = &map_event->data;
  49
  50         TEST_ASSERT_VAL("wrong type", data->type == PERF_CPU_MAP__CPUS);
  51
  52         cpus = (struct cpu_map_entries *)data->data;
  53
  54         TEST_ASSERT_VAL("wrong nr",   cpus->nr == 2);
  55         TEST_ASSERT_VAL("wrong cpu",  cpus->cpu[0] == 1);
  56         TEST_ASSERT_VAL("wrong cpu",  cpus->cpu[1] == 256);
  57
  58         map = cpu_map__new_data(data);
  59         TEST_ASSERT_VAL("wrong nr",  map->nr == 2);
  60         TEST_ASSERT_VAL("wrong cpu", map->map[0] == 1);
  61         TEST_ASSERT_VAL("wrong cpu", map->map[1] == 256);
  62         TEST_ASSERT_VAL("wrong refcnt", atomic_read(&map->refcnt) == 1);
  63         cpu_map__put(map);
  64         return 0;
  65 }
  66
  67
  68 int test__cpu_map_synthesize(int subtest __maybe_unused)
  69 {
  70         struct cpu_map *cpus;
  71
  72         /* This one is better stores in mask. */
  73         cpus = cpu_map__new("0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19");
  74
  75         TEST_ASSERT_VAL("failed to synthesize map",
  76                 !perf_event__synthesize_cpu_map(NULL, cpus, process_event_mask, NULL));
  77
  78         cpu_map__put(cpus);
  79
  80         /* This one is better stores in cpu values. */
  81         cpus = cpu_map__new("1,256");
  82
  83         TEST_ASSERT_VAL("failed to synthesize map",
  84                 !perf_event__synthesize_cpu_map(NULL, cpus, process_event_cpus, NULL));
  85
  86         cpu_map__put(cpus);
  87         return 0;
  88 }