amd_xdma.h

 1/* SPDX-License-Identifier: GPL-2.0-or-later */
 2/*
 3 * Copyright (C) 2022, Advanced Micro Devices, Inc.
 4 */
 5
 6#ifndef _PLATDATA_AMD_XDMA_H
 7#define _PLATDATA_AMD_XDMA_H
 8
 9#include <linux/dmaengine.h>
10
11/**
12 * struct xdma_chan_info - DMA channel information
13 *	This information is used to match channel when request dma channel
14 * @dir: Channel transfer direction
15 */
16struct xdma_chan_info {
17	enum dma_transfer_direction dir;
18};
19
20#define XDMA_FILTER_PARAM(chan_info)	((void *)(chan_info))
21
22struct dma_slave_map;
23
24/**
25 * struct xdma_platdata - platform specific data for XDMA engine
26 * @max_dma_channels: Maximum dma channels in each direction
27 */
28struct xdma_platdata {
29	u32 max_dma_channels;
30	u32 device_map_cnt;
31	struct dma_slave_map *device_map;
32};
33
34#endif /* _PLATDATA_AMD_XDMA_H */