1 files changed, 56 insertions, 0 deletions
diff --git a/drivers/dma/debug.h b/drivers/dma/debug.h
new file mode 100644
index 0000000000..020bb5c196
--- /dev/null
+++ b/drivers/dma/debug.h
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2008 Advanced Micro Devices, Inc.
+ *
+ * Author: Joerg Roedel <joerg.roedel@amd.com>
+ */
+
+#ifndef _KERNEL_DMA_DEBUG_H
+#define _KERNEL_DMA_DEBUG_H
+
+#include <linux/types.h>
+
+struct device;
+
+#ifdef CONFIG_DMA_API_DEBUG
+extern void debug_dma_map(struct device *dev, void *addr,
+			  size_t size,
+			  int direction, dma_addr_t dma_addr);
+
+extern void debug_dma_unmap(struct device *dev, dma_addr_t addr,
+			    size_t size, int direction);
+
+extern void debug_dma_sync_single_for_cpu(struct device *dev,
+					  dma_addr_t dma_handle, size_t size,
+					  int direction);
+
+extern void debug_dma_sync_single_for_device(struct device *dev,
+					     dma_addr_t dma_handle,
+					     size_t size, int direction);
+
+#else /* CONFIG_DMA_API_DEBUG */
+static inline void debug_dma_map(struct device *dev, void *addr,
+				 size_t size,
+				 int direction, dma_addr_t dma_addr)
+{
+}
+
+static inline void debug_dma_unmap(struct device *dev, dma_addr_t addr,
+				   size_t size, int direction)
+{
+}
+
+static inline void debug_dma_sync_single_for_cpu(struct device *dev,
+						 dma_addr_t dma_handle,
+						 size_t size, int direction)
+{
+}
+
+static inline void debug_dma_sync_single_for_device(struct device *dev,
+						    dma_addr_t dma_handle,
+						    size_t size, int direction)
+{
+}
+
+#endif /* CONFIG_DMA_API_DEBUG */
+#endif /* _KERNEL_DMA_DEBUG_H */