arch/x86/include/asm/iommu.h

   1 #ifndef _ASM_X86_IOMMU_H
   2 #define _ASM_X86_IOMMU_H
   3
   4 extern 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 /* 10 seconds */
  10 #define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000)
  11
  12 #endif /* _ASM_X86_IOMMU_H */