1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_lockdep.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_lockdep.h
new file mode 100644
index 000000000000..04adb58665bf
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_lockdep.h
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright 2024 Advanced Micro Devices, Inc.
+ *
+ * Lockdep annotation interface for AMDGPU
+ */
+
+#ifndef __AMDGPU_LOCKDEP_H__
+#define __AMDGPU_LOCKDEP_H__
+
+#include <linux/lockdep.h>
+
+struct amdgpu_device;
+
+#ifdef CONFIG_LOCKDEP
+
+/**
+ * amdgpu_lockdep_init - Train lockdep on correct lock ordering
+ *
+ * Call once during module init to establish the lock dependency chain.
+ */
+int amdgpu_lockdep_init(void);
+
+/**
+ * amdgpu_lockdep_set_class - Associate lock class keys with real locks
+ * @adev: AMDGPU device
+ *
+ * Call during device init to associate lock classes with actual locks.
+ */
+void amdgpu_lockdep_set_class(struct amdgpu_device *adev);
+
+#else /* !CONFIG_LOCKDEP */
+
+static inline int amdgpu_lockdep_init(void) { return 0; }
+static inline void amdgpu_lockdep_set_class(struct amdgpu_device *adev) {}
+
+#endif /* CONFIG_LOCKDEP */
+
+#endif /* __AMDGPU_LOCKDEP_H__ */