1 /* 2 * Arch specific extensions to struct device 3 * 4 * This file is released under the GPLv2 5 */ 6 #ifndef _ASM_POWERPC_DEVICE_H 7 #define _ASM_POWERPC_DEVICE_H 8 9 struct dma_map_ops; 10 struct device_node; 11 #ifdef CONFIG_PPC64 12 struct pci_dn; 13 #endif 14 15 /* 16 * Arch extensions to struct device. 17 * 18 * When adding fields, consider macio_add_one_device in 19 * drivers/macintosh/macio_asic.c 20 */ 21 struct dev_archdata { 22 /* DMA operations on that device */ 23 struct dma_map_ops *dma_ops; 24 25 /* 26 * When an iommu is in use, dma_data is used as a ptr to the base of the 27 * iommu_table. Otherwise, it is a simple numerical offset. 28 */ 29 union { 30 dma_addr_t dma_offset; 31 void *iommu_table_base; 32 } dma_data; 33 34 #ifdef CONFIG_IOMMU_API 35 void *iommu_domain; 36 #endif 37 #ifdef CONFIG_SWIOTLB 38 dma_addr_t max_direct_dma_addr; 39 #endif 40 #ifdef CONFIG_PPC64 41 struct pci_dn *pci_data; 42 #endif 43 #ifdef CONFIG_EEH 44 struct eeh_dev *edev; 45 #endif 46 #ifdef CONFIG_FAIL_IOMMU 47 int fail_iommu; 48 #endif 49 #ifdef CONFIG_CXL_BASE 50 struct cxl_context *cxl_ctx; 51 #endif 52 }; 53 54 struct pdev_archdata { 55 u64 dma_mask; 56 }; 57 58 #define ARCH_HAS_DMA_GET_REQUIRED_MASK 59 60 #endif /* _ASM_POWERPC_DEVICE_H */ 61