/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright ( C ) 2012 Advanced Micro Devices , Inc .
* Author : Joerg Roedel < jroedel @ suse . de >
*
* This header file contains stuff that is shared between different interrupt
* remapping drivers but with no need to be visible outside of the IOMMU layer .
*/
#ifndef __IRQ_REMAPPING_H
#define __IRQ_REMAPPING_H
#ifdef CONFIG_IRQ_REMAP
struct irq_data;
struct msi_msg;
struct irq_domain;
struct irq_alloc_info;
extern int irq_remap_broken;
extern int disable_sourceid_checking;
extern int no_x2apic_optout;
extern int irq_remapping_enabled;
extern int disable_irq_post;
struct irq_remap_ops {
/* The supported capabilities */
int capability;
/* Initializes hardware and makes it ready for remapping interrupts */
int (*prepare)(void );
/* Enables the remapping hardware */
int (*enable)(void );
/* Disables the remapping hardware */
void (*disable)(void );
/* Reenables the remapping hardware */
int (*reenable)(int );
/* Enable fault handling */
int (*enable_faulting)(unsigned int );
};
extern struct irq_remap_ops intel_irq_remap_ops;
extern struct irq_remap_ops amd_iommu_irq_ops;
extern struct irq_remap_ops hyperv_irq_remap_ops;
#else /* CONFIG_IRQ_REMAP */
#define irq_remapping_enabled 0
#define irq_remap_broken 0
#define disable_irq_post 1
#endif /* CONFIG_IRQ_REMAP */
#endif /* __IRQ_REMAPPING_H */
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