[mirror_ubuntu-bionic-kernel.git] / arch / x86 / include / asm / iommu.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_IOMMU_H
#define _ASM_X86_IOMMU_H

extern const struct dma_map_ops nommu_dma_ops;
extern int force_iommu, no_iommu;
extern int iommu_detected;
extern int iommu_pass_through;

int x86_dma_supported(struct device *dev, u64 mask);

/* 10 seconds */
#define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000)

#endif /* _ASM_X86_IOMMU_H */
Commit	Line	Data
	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_khz101000)
	14
	15	#endif /* _ASM_X86_IOMMU_H */