[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
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
1965aae3 PA	2	#ifndef _ASM_X86_IOMMU_H
1965aae3 PA	3	#define _ASM_X86_IOMMU_H
f2cf8e08	4
5299709d	5	extern const struct dma_map_ops nommu_dma_ops;
f2cf8e08 YL	6	extern int force_iommu, no_iommu;
f2cf8e08 YL	7	extern int iommu_detected;
4ed0d3e6	8	extern int iommu_pass_through;
e93be88d	9
5860acc1 CH	10	int x86_dma_supported(struct device *dev, u64 mask);
5860acc1 CH	11
5b6985ce FY	12	/* 10 seconds */
	13	#define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz101000)
	14
1965aae3	15	#endif /* _ASM_X86_IOMMU_H */