1 files changed, 78 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..28c5e5aced7f
--- /dev/null
+++ b/tools/perf/util/bpf_skel/lock_data.h
@@ -0,0 +1,78 @@
+// 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 owner_tracing_data {
+	u32 pid; // Who has the lock.
+	u32 count; // How many waiters for this lock.
+	u64 timestamp; // The time while the owner acquires lock and contention is going on.
+	s32 stack_id; // Identifier for `owner_stat`, which stores as value in `owner_stacks`
+};
+
+struct tstamp_data {
+	u64 timestamp;
+	u64 lock;
+	u32 flags;
+	s32 stack_id;
+};
+
+struct contention_key {
+	s32 stack_id;
+	u32 pid;
+	u64 lock_addr_or_cgroup;
+};
+
+#define TASK_COMM_LEN  16
+
+struct contention_task_data {
+	char comm[TASK_COMM_LEN];
+};
+
+/* default buffer size */
+#define MAX_ENTRIES  16384
+
+/*
+ * Upper bits of the flags in the contention_data are used to identify
+ * some well-known locks which do not have symbols (non-global locks).
+ */
+#define LCD_F_MMAP_LOCK		(1U << 31)
+#define LCD_F_SIGHAND_LOCK	(1U << 30)
+
+#define LCB_F_SLAB_ID_SHIFT	16
+#define LCB_F_SLAB_ID_START	(1U << 16)
+#define LCB_F_SLAB_ID_END	(1U << 26)
+#define LCB_F_SLAB_ID_MASK	0x03FF0000U
+
+#define LCB_F_TYPE_MAX		(1U << 7)
+#define LCB_F_TYPE_MASK		0x0000007FU
+
+#define SLAB_NAME_MAX  28
+
+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,
+	LOCK_AGGR_CGROUP,
+};
+
+enum lock_class_sym {
+	LOCK_CLASS_NONE,
+	LOCK_CLASS_RQLOCK,
+	LOCK_CLASS_ZONE_LOCK,
+};
+
+struct slab_cache_data {
+	u32 id;
+	char name[SLAB_NAME_MAX];
+};
+
+#endif /* UTIL_BPF_SKEL_LOCK_DATA_H */