include/linux/platform_data/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  */
  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 */