linux/arch/x86/include/asm/iommu.h

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

#include <linux/acpi.h>

#include <asm/e820/api.h>

extern int force_iommu, no_iommu;
extern int iommu_detected;
extern int iommu_merge;
extern int panic_on_overflow;
extern bool amd_iommu_snp_en;

#ifdef CONFIG_SWIOTLB
extern bool x86_swiotlb_enable;
#else
#define x86_swiotlb_enable …
#endif

/* 10 seconds */
#define DMAR_OPERATION_TIMEOUT …

static inline int __init
arch_rmrr_sanity_check(struct acpi_dmar_reserved_memory *rmrr)
{ … }

#endif /* _ASM_X86_IOMMU_H */