arch/powerpc/include/asm/device.h

   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 */