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 */
16 struct qdma_queue_info {
17 enum dma_transfer_direction dir;
18 };
19
20 #define QDMA_FILTER_PARAM(qinfo) ((void *)(qinfo))
21
22 struct 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 */
30 struct qdma_platdata {
31 u32 max_mm_channels;
32 u32 irq_index;
33 struct dma_slave_map *device_map;
34 };
35
36 #endif /* _PLATDATA_AMD_QDMA_H */
37
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