Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0-only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * Copyright (C) 2012 Advanced Micro Devices, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  * Author: Joerg Roedel <jroedel@suse.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  * This header file contains stuff that is shared between different interrupt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  * remapping drivers but with no need to be visible outside of the IOMMU layer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #ifndef __IRQ_REMAPPING_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #define __IRQ_REMAPPING_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #ifdef CONFIG_IRQ_REMAP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) struct irq_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) struct msi_msg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) struct irq_domain;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) struct irq_alloc_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) extern int irq_remap_broken;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) extern int disable_sourceid_checking;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) extern int no_x2apic_optout;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) extern int irq_remapping_enabled;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) extern int disable_irq_post;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) struct irq_remap_ops {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	/* The supported capabilities */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	int capability;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	/* Initializes hardware and makes it ready for remapping interrupts */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	int  (*prepare)(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	/* Enables the remapping hardware */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	int  (*enable)(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	/* Disables the remapping hardware */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	void (*disable)(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	/* Reenables the remapping hardware */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	int  (*reenable)(int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	/* Enable fault handling */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	int  (*enable_faulting)(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 	/* Get the irqdomain associated to IOMMU device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 	struct irq_domain *(*get_irq_domain)(struct irq_alloc_info *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) extern struct irq_remap_ops intel_irq_remap_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) extern struct irq_remap_ops amd_iommu_irq_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) extern struct irq_remap_ops hyperv_irq_remap_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #else  /* CONFIG_IRQ_REMAP */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) #define irq_remapping_enabled 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) #define irq_remap_broken      0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) #define disable_irq_post      1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) #endif /* CONFIG_IRQ_REMAP */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) #endif /* __IRQ_REMAPPING_H */