33 lines
1007 B
C
33 lines
1007 B
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Copyright (c) 2021 Rockchip Electronics Co. Ltd.
|
|
*/
|
|
#ifndef _LINUX_DMA_BUF_CACHE_H
|
|
#define _LINUX_DMA_BUF_CACHE_H
|
|
|
|
#include <linux/dma-buf.h>
|
|
|
|
extern void dma_buf_cache_detach(struct dma_buf *dmabuf,
|
|
struct dma_buf_attachment *attach);
|
|
|
|
extern void dma_buf_cache_unmap_attachment(struct dma_buf_attachment *attach,
|
|
struct sg_table *sg_table,
|
|
enum dma_data_direction direction);
|
|
|
|
extern struct dma_buf_attachment *
|
|
dma_buf_cache_attach(struct dma_buf *dmabuf, struct device *dev);
|
|
|
|
extern struct sg_table *
|
|
dma_buf_cache_map_attachment(struct dma_buf_attachment *attach,
|
|
enum dma_data_direction direction);
|
|
|
|
#ifdef CONFIG_DMABUF_CACHE
|
|
/* Replace dma-buf apis to cached apis */
|
|
#define dma_buf_attach dma_buf_cache_attach
|
|
#define dma_buf_detach dma_buf_cache_detach
|
|
#define dma_buf_map_attachment dma_buf_cache_map_attachment
|
|
#define dma_buf_unmap_attachment dma_buf_cache_unmap_attachment
|
|
#endif
|
|
|
|
#endif /* _LINUX_DMA_BUF_CACHE_H */
|