| 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
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| 2 | /* |
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| 3 | * Copyright (C) 2022, Advanced Micro Devices, Inc. |
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| 4 | */ |
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| 5 | |
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| 6 | #ifndef _PLATDATA_AMD_XDMA_H |
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| 7 | #define _PLATDATA_AMD_XDMA_H |
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| 8 | |
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| 9 | #include <linux/dmaengine.h> |
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| 10 | |
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| 11 | /** |
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| 12 | * struct xdma_chan_info - DMA channel information |
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| 13 | * This information is used to match channel when request dma channel |
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| 14 | * @dir: Channel transfer direction |
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| 15 | */ |
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| 16 | struct xdma_chan_info { |
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| 17 | enum dma_transfer_direction dir; |
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| 18 | }; |
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| 19 | |
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| 20 | #define XDMA_FILTER_PARAM(chan_info) ((void *)(chan_info)) |
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| 21 | |
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| 22 | struct dma_slave_map; |
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| 23 | |
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| 24 | /** |
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| 25 | * struct xdma_platdata - platform specific data for XDMA engine |
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| 26 | * @max_dma_channels: Maximum dma channels in each direction |
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| 27 | */ |
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| 28 | struct xdma_platdata { |
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| 29 | u32 max_dma_channels; |
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| 30 | u32 device_map_cnt; |
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| 31 | struct dma_slave_map *device_map; |
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| 32 | }; |
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| 33 | |
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| 34 | #endif /* _PLATDATA_AMD_XDMA_H */ |
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| 35 | |
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