Orange Pi5 kernel

/* 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)(void);
 
<------>/* Get the irqdomain associated to IOMMU device */
<------>struct irq_domain *(*get_irq_domain)(struct irq_alloc_info *);
};
 
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 */