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1#ifndef _ASM_X86_DEVICE_H 2#define _ASM_X86_DEVICE_H 3 4struct dev_archdata { 5#ifdef CONFIG_ACPI 6 void *acpi_handle; 7#endif 8#ifdef CONFIG_X86_64 9struct 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 */