tegrakernel/kernel/kernel-4.9/arch/x86/include/asm/iommu.h

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2022-02-16 09:13:02 -06:00
#ifndef _ASM_X86_IOMMU_H
#define _ASM_X86_IOMMU_H
extern struct dma_map_ops nommu_dma_ops;
extern int force_iommu, no_iommu;
extern int iommu_detected;
extern int iommu_pass_through;
/* 10 seconds */
#define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000)
#endif /* _ASM_X86_IOMMU_H */