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 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 */