/* * Copyright (C) 2012 Advanced Micro Devices, Inc. * Author: Joerg Roedel <jroedel@suse.de> * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published * by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * 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 the IOMMU device */ struct irq_domain *(*get_ir_irq_domain)(struct irq_alloc_info *); /* Get the MSI irqdomain associated with the 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 void ir_ack_apic_edge(struct irq_data *data); #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 */