amd_qdma.h

 1/* SPDX-License-Identifier: GPL-2.0-or-later */
 2/*
 3 * Copyright (C) 2023-2024, Advanced Micro Devices, Inc.
 4 */
 5
 6#ifndef _PLATDATA_AMD_QDMA_H
 7#define _PLATDATA_AMD_QDMA_H
 8
 9#include <linux/dmaengine.h>
10
11/**
12 * struct qdma_queue_info - DMA queue information. This information is used to
13 *			    match queue when DMA channel is requested
14 * @dir: Channel transfer direction
15 */
16struct qdma_queue_info {
17	enum dma_transfer_direction dir;
18};
19
20#define QDMA_FILTER_PARAM(qinfo)	((void *)(qinfo))
21
22struct dma_slave_map;
23
24/**
25 * struct qdma_platdata - Platform specific data for QDMA engine
26 * @max_mm_channels: Maximum number of MM DMA channels in each direction
27 * @device_map: DMA slave map
28 * @irq_index: The index of first IRQ
29 * @dma_dev: The device pointer for dma operations
30 */
31struct qdma_platdata {
32	u32			max_mm_channels;
33	u32			irq_index;
34	struct dma_slave_map	*device_map;
35	struct device		*dma_dev;
36};
37
38#endif /* _PLATDATA_AMD_QDMA_H */