arch/x86/include/asm/iommu.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_X86_IOMMU_H
   3 #define _ASM_X86_IOMMU_H
   4
   5 extern const struct dma_map_ops nommu_dma_ops;
   6 extern int force_iommu, no_iommu;
   7 extern int iommu_detected;
   8 extern int iommu_pass_through;
   9
  10 int x86_dma_supported(struct device *dev, u64 mask);
  11
  12 /* 10 seconds */
  13 #define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000)
  14
  15 #endif /* _ASM_X86_IOMMU_H */