1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Arch specific extensions to struct device 4 */ 5 #ifndef _ASM_POWERPC_DEVICE_H 6 #define _ASM_POWERPC_DEVICE_H 7 8 struct device_node; 9 #ifdef CONFIG_PPC64 10 struct pci_dn; 11 struct iommu_table; 12 #endif 13 14 /* 15 * Arch extensions to struct device. 16 * 17 * When adding fields, consider macio_add_one_device in 18 * drivers/macintosh/macio_asic.c 19 */ 20 struct dev_archdata { 21 /* 22 * Set to %true if the dma_iommu_ops are requested to use a direct 23 * window instead of dynamically mapping memory. 24 */ 25 bool iommu_bypass : 1; 26 /* 27 * These two used to be a union. However, with the hybrid ops we need 28 * both so here we store both a DMA offset for direct mappings and 29 * an iommu_table for remapped DMA. 30 */ 31 dma_addr_t dma_offset; 32 33 #ifdef CONFIG_PPC64 34 struct iommu_table *iommu_table_base; 35 #endif 36 37 #ifdef CONFIG_IOMMU_API 38 void *iommu_domain; 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 #endif /* _ASM_POWERPC_DEVICE_H */ 59