dma-buf: Add support for mapping buffers with DMA attributes

REFERENCE:
https://git.seco.com/edgehog/bsp/rockchip/linux-seco-rk/-/commit/f57c5b53d9a29ac14a73d624b41c104c8141a444

include/linux/dma-buf.h

@@ -373,6 +373,8 @@ struct dma_buf_attach_ops {
  * @dir: direction of cached mapping.
  * @peer2peer: true if the importer can handle peer resources without pages.
  * @priv: exporter specific attachment data.
+ * @dma_map_attrs: DMA attributes to be used when the exporter maps the buffer
+ *                 through dma_buf_map_attachment.
  * @importer_ops: importer operations for this attachment, if provided
  * dma_buf_map/unmap_attachment() must be called with the dma_resv lock held.
  * @importer_priv: importer specific attachment data.
@@ -396,6 +398,7 @@ struct dma_buf_attachment {
 	const struct dma_buf_attach_ops *importer_ops;
 	void *importer_priv;
 	void *priv;
+	unsigned long dma_map_attrs;
 };
 
 /**