1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_X86_IOMMU_H
3 #define _ASM_X86_IOMMU_H
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
;
10 int x86_dma_supported(struct device
*dev
, u64 mask
);
13 #define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000)
15 #endif /* _ASM_X86_IOMMU_H */