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 unsigned int dma_coherent:1; 19 unsigned int dma_ops_setup:1; 20 }; 21 22 struct omap_device; 23 24 struct pdev_archdata { 25 #ifdef CONFIG_ARCH_OMAP 26 struct omap_device *od; 27 #endif 28 }; 29 30 #ifdef CONFIG_ARM_DMA_USE_IOMMU 31 #define to_dma_iommu_mapping(dev) ((dev)->archdata.mapping) 32 #else 33 #define to_dma_iommu_mapping(dev) NULL 34 #endif 35 36 #endif 37