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 9struct dma_map_ops; 10struct device_node; 11#ifdef CONFIG_PPC64 12struct pci_dn; 13struct iommu_table; 14#endif 15 16/* 17 * Arch extensions to struct device. 18 * 19 * When adding fields, consider macio_add_one_device in 20 * drivers/macintosh/macio_asic.c 21 */ 22struct dev_archdata { 23 /* DMA operations on that device */ 24 struct dma_map_ops *dma_ops; 25 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_SWIOTLB 41 dma_addr_t max_direct_dma_addr; 42#endif 43#ifdef CONFIG_PPC64 44 struct pci_dn *pci_data; 45#endif 46#ifdef CONFIG_EEH 47 struct eeh_dev *edev; 48#endif 49#ifdef CONFIG_FAIL_IOMMU 50 int fail_iommu; 51#endif 52#ifdef CONFIG_CXL_BASE 53 struct cxl_context *cxl_ctx; 54#endif 55}; 56 57struct pdev_archdata { 58 u64 dma_mask; 59}; 60 61#define ARCH_HAS_DMA_GET_REQUIRED_MASK 62 63#endif /* _ASM_POWERPC_DEVICE_H */ 64