1#ifndef _ASM_X86_IOMMU_H 2#define _ASM_X86_IOMMU_H 3 4extern struct dma_map_ops nommu_dma_ops; 5extern int force_iommu, no_iommu; 6extern int iommu_detected; 7extern int iommu_pass_through; 8 9/* 10 seconds */ 10#define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000) 11 12#endif /* _ASM_X86_IOMMU_H */ 13