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 device_node; 10 #ifdef CONFIG_PPC64 11 struct pci_dn; 12 struct iommu_table; 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 /* 23 * These two used to be a union. However, with the hybrid ops we need 24 * both so here we store both a DMA offset for direct mappings and 25 * an iommu_table for remapped DMA. 26 */ 27 dma_addr_t dma_offset; 28 29 #ifdef CONFIG_PPC64 30 struct iommu_table *iommu_table_base; 31 #endif 32 33 #ifdef CONFIG_IOMMU_API 34 void *iommu_domain; 35 #endif 36 #ifdef CONFIG_SWIOTLB 37 dma_addr_t max_direct_dma_addr; 38 #endif 39 #ifdef CONFIG_PPC64 40 struct pci_dn *pci_data; 41 #endif 42 #ifdef CONFIG_EEH 43 struct eeh_dev *edev; 44 #endif 45 #ifdef CONFIG_FAIL_IOMMU 46 int fail_iommu; 47 #endif 48 #ifdef CONFIG_CXL_BASE 49 struct cxl_context *cxl_ctx; 50 #endif 51 }; 52 53 struct pdev_archdata { 54 u64 dma_mask; 55 }; 56 57 #define ARCH_HAS_DMA_GET_REQUIRED_MASK 58 59 #endif /* _ASM_POWERPC_DEVICE_H */ 60