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 */ 16 struct xdma_chan_info { 17 enum dma_transfer_direction dir; 18 }; 19 20 #define XDMA_FILTER_PARAM(chan_info) ((void *)(chan_info)) 21 22 struct 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 */ 28 struct 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 */ 35