1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright (c) 2022 Rockchip Electronics Co. Ltd.
4 */
5#ifndef _LINUX_DMA_BUF_CACHE_H
6#define _LINUX_DMA_BUF_CACHE_H
7
8#include <linux/dma-buf.h>
9
10extern void dma_buf_cache_detach(struct dma_buf *dmabuf, struct dma_buf_attachment *attach);
11
12extern void dma_buf_cache_unmap_attachment(struct dma_buf_attachment *attach, struct sg_table *sg_table,
13                                           enum dma_data_direction direction);
14
15extern struct dma_buf_attachment *dma_buf_cache_attach(struct dma_buf *dmabuf, struct device *dev);
16
17extern struct sg_table *dma_buf_cache_map_attachment(struct dma_buf_attachment *attach,
18                                                     enum dma_data_direction direction);
19
20#ifdef CONFIG_DMABUF_CACHE
21/* Replace dma-buf apis to cached apis */
22#define dma_buf_attach dma_buf_cache_attach
23#define dma_buf_detach dma_buf_cache_detach
24#define dma_buf_map_attachment dma_buf_cache_map_attachment
25#define dma_buf_unmap_attachment dma_buf_cache_unmap_attachment
26#endif
27
28#endif /* _LINUX_DMA_BUF_CACHE_H */
29