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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980/* SPDX-License-Identifier: GPL-2.0-only *//* * Copyright (C) 2007-2010 Advanced Micro Devices, Inc. * Author: Joerg Roedel <joerg.roedel@amd.com> * Leo Duran <leo.duran@amd.com> */
#ifndef _ASM_X86_AMD_IOMMU_H#define _ASM_X86_AMD_IOMMU_H
#include <linux/types.h>
struct amd_iommu;
#ifdef CONFIG_AMD_IOMMU
struct task_struct;struct pci_dev;
extern void amd_iommu_detect(void);
#else /* CONFIG_AMD_IOMMU */
static inline void amd_iommu_detect(void) { }
#endif /* CONFIG_AMD_IOMMU */
#if defined(CONFIG_AMD_IOMMU) && defined(CONFIG_IRQ_REMAP)
/* IOMMU AVIC Function */extern int amd_iommu_register_ga_log_notifier(int (*notifier)(u32));
extern int amd_iommu_update_ga(void *data, int cpu, bool ga_log_intr);extern int amd_iommu_activate_guest_mode(void *data, int cpu, bool ga_log_intr);extern int amd_iommu_deactivate_guest_mode(void *data);
#else /* defined(CONFIG_AMD_IOMMU) && defined(CONFIG_IRQ_REMAP) */
static inline intamd_iommu_register_ga_log_notifier(int (*notifier)(u32)){ return 0;}
static inline int amd_iommu_update_ga(void *data, int cpu, bool ga_log_intr){ return 0;}
static inline int amd_iommu_activate_guest_mode(void *data, int cpu, bool ga_log_intr){ return 0;}
static inline int amd_iommu_deactivate_guest_mode(void *data){ return 0;}#endif /* defined(CONFIG_AMD_IOMMU) && defined(CONFIG_IRQ_REMAP) */
int amd_iommu_get_num_iommus(void);bool amd_iommu_pc_supported(void);u8 amd_iommu_pc_get_max_banks(unsigned int idx);u8 amd_iommu_pc_get_max_counters(unsigned int idx);int amd_iommu_pc_set_reg(struct amd_iommu *iommu, u8 bank, u8 cntr, u8 fxn, u64 *value);int amd_iommu_pc_get_reg(struct amd_iommu *iommu, u8 bank, u8 cntr, u8 fxn, u64 *value);struct amd_iommu *get_amd_iommu(unsigned int idx);
#ifdef CONFIG_KVM_AMD_SEVint amd_iommu_snp_disable(void);extern bool amd_iommu_sev_tio_supported(void);#elsestatic inline int amd_iommu_snp_disable(void) { return 0; }static inline bool amd_iommu_sev_tio_supported(void) { return false; }#endif
#endif /* _ASM_X86_AMD_IOMMU_H */