#ifndef _ASM_X86_DEVICE_H
  #define _ASM_X86_DEVICE_H
  
  struct dev_archdata {
  #ifdef CONFIG_X86_DEV_DMA_OPS
  	struct dma_map_ops *dma_ops;
  #endif
  #if defined(CONFIG_INTEL_IOMMU) || defined(CONFIG_AMD_IOMMU)
  	void *iommu; /* hook for IOMMU specific extension */
  #endif
  };
  
  struct pdev_archdata {
  };
  
  #endif /* _ASM_X86_DEVICE_H */