summaryrefslogtreecommitdiff
path: root/tools/perf/lib/include/internal/evsel.h
diff options
context:
space:
mode:
Diffstat (limited to 'tools/perf/lib/include/internal/evsel.h')
-rw-r--r--tools/perf/lib/include/internal/evsel.h27
1 files changed, 27 insertions, 0 deletions
diff --git a/tools/perf/lib/include/internal/evsel.h b/tools/perf/lib/include/internal/evsel.h
index 385766f06591..a69b8299c36f 100644
--- a/tools/perf/lib/include/internal/evsel.h
+++ b/tools/perf/lib/include/internal/evsel.h
@@ -5,11 +5,35 @@
#include <linux/types.h>
#include <linux/perf_event.h>
#include <stdbool.h>
+#include <sys/types.h>
struct perf_cpu_map;
struct perf_thread_map;
struct xyarray;
+/*
+ * Per fd, to map back from PERF_SAMPLE_ID to evsel, only used when there are
+ * more than one entry in the evlist.
+ */
+struct perf_sample_id {
+ struct hlist_node node;
+ u64 id;
+ struct perf_evsel *evsel;
+ /*
+ * 'idx' will be used for AUX area sampling. A sample will have AUX area
+ * data that will be queued for decoding, where there are separate
+ * queues for each CPU (per-cpu tracing) or task (per-thread tracing).
+ * The sample ID can be used to lookup 'idx' which is effectively the
+ * queue number.
+ */
+ int idx;
+ int cpu;
+ pid_t tid;
+
+ /* Holds total ID period value for PERF_SAMPLE_READ processing. */
+ u64 period;
+};
+
struct perf_evsel {
struct list_head node;
struct perf_event_attr attr;
@@ -32,4 +56,7 @@ void perf_evsel__free_fd(struct perf_evsel *evsel);
int perf_evsel__read_size(struct perf_evsel *evsel);
int perf_evsel__apply_filter(struct perf_evsel *evsel, const char *filter);
+int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
+void perf_evsel__free_id(struct perf_evsel *evsel);
+
#endif /* __LIBPERF_INTERNAL_EVSEL_H */