1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Arch specific extensions to struct device 4 */ 5 #ifndef ASMARM_DEVICE_H 6 #define ASMARM_DEVICE_H 7 8 struct dev_archdata { 9 #ifdef CONFIG_DMABOUNCE 10 struct dmabounce_device_info *dmabounce; 11 #endif 12 #ifdef CONFIG_IOMMU_API 13 void *iommu; /* private IOMMU data */ 14 #endif 15 #ifdef CONFIG_ARM_DMA_USE_IOMMU 16 struct dma_iommu_mapping *mapping; 17 #endif 18 #ifdef CONFIG_XEN 19 const struct dma_map_ops *dev_dma_ops; 20 #endif 21 unsigned int dma_coherent:1; 22 unsigned int dma_ops_setup:1; 23 }; 24 25 struct omap_device; 26 27 struct pdev_archdata { 28 #ifdef CONFIG_ARCH_OMAP 29 struct omap_device *od; 30 #endif 31 }; 32 33 #ifdef CONFIG_ARM_DMA_USE_IOMMU 34 #define to_dma_iommu_mapping(dev) ((dev)->archdata.mapping) 35 #else 36 #define to_dma_iommu_mapping(dev) NULL 37 #endif 38 39 #endif 40