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   1 #ifndef _ASM_X86_DEVICE_H
   2 #define _ASM_X86_DEVICE_H
   3
   4 struct dev_archdata {
   5 #ifdef CONFIG_ACPI
   6         void    *acpi_handle;
   7 #endif
   8 #ifdef CONFIG_X86_64
   9 struct dma_mapping_ops *dma_ops;
  10 #endif
  11 #ifdef CONFIG_DMAR
  12         void *iommu; /* hook for IOMMU specific extension */
  13 #endif
  14 };
  15
  16 #endif /* _ASM_X86_DEVICE_H */