arch/x86/include/asm/iommu.h

   1 #ifndef _ASM_X86_IOMMU_H
   2 #define _ASM_X86_IOMMU_H
   3
   4 extern const struct dma_map_ops nommu_dma_ops;
   5 extern int force_iommu, no_iommu;
   6 extern int iommu_detected;
   7 extern int iommu_pass_through;
   8
   9 int x86_dma_supported(struct device *dev, u64 mask);
  10
  11 /* 10 seconds */
  12 #define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000)
  13
  14 #endif /* _ASM_X86_IOMMU_H */