arch/powerpc/include/asm/device.h

   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 struct 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  */
  22 struct 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
  57 struct pdev_archdata {
  58         u64 dma_mask;
  59 };
  60
  61 #define ARCH_HAS_DMA_GET_REQUIRED_MASK
  62
  63 #endif /* _ASM_POWERPC_DEVICE_H */