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#ifndef _ASM_X86_IOMMU_H #define _ASM_X86_IOMMU_H extern struct dma_map_ops nommu_dma_ops; extern int force_iommu, no_iommu; extern int iommu_detected; extern int iommu_pass_through; /* 10 seconds */ #define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000) #endif /* _ASM_X86_IOMMU_H */