perf lock contention: Add lock_data.h for common data

Accessing BPF maps should use the same data types.  Add bpf_skel/lock_data.h
to define the common data structures.  No functional changes.

Committer notes:

Fixed contention_key.stack_id missing rename to contention_key.stack_or_task_id.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Blake Jones <blakejones@google.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20221209190727.759804-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 30 insertions, 0 deletions

diff --git a/tools/perf/util/bpf_skel/lock_data.h b/tools/perf/util/bpf_skel/lock_data.h
new file mode 100644
index 000000000000..dbdf4caedc4a
--- /dev/null
+++ b/tools/perf/util/bpf_skel/lock_data.h
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+/* Data structures shared between BPF and tools. */
+#ifndef UTIL_BPF_SKEL_LOCK_DATA_H
+#define UTIL_BPF_SKEL_LOCK_DATA_H
+
+struct contention_key {
+	s32 stack_or_task_id;
+};
+
+#define TASK_COMM_LEN  16
+
+struct contention_task_data {
+	char comm[TASK_COMM_LEN];
+};
+
+struct contention_data {
+	u64 total_time;
+	u64 min_time;
+	u64 max_time;
+	u32 count;
+	u32 flags;
+};
+
+enum lock_aggr_mode {
+	LOCK_AGGR_ADDR = 0,
+	LOCK_AGGR_TASK,
+	LOCK_AGGR_CALLER,
+};
+
+#endif /* UTIL_BPF_SKEL_LOCK_DATA_H */