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78 lines
2.2 KiB
78 lines
2.2 KiB
/* |
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* Copyright (C) 2012 Advanced Micro Devices, Inc. |
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* Author: Joerg Roedel <jroedel@suse.de> |
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* |
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* This program is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 as published |
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* by the Free Software Foundation. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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* |
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* This header file contains stuff that is shared between different interrupt |
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* remapping drivers but with no need to be visible outside of the IOMMU layer. |
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*/ |
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#ifndef __IRQ_REMAPPING_H |
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#define __IRQ_REMAPPING_H |
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#ifdef CONFIG_IRQ_REMAP |
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struct irq_data; |
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struct msi_msg; |
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struct irq_domain; |
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struct irq_alloc_info; |
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extern int irq_remap_broken; |
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extern int disable_sourceid_checking; |
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extern int no_x2apic_optout; |
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extern int irq_remapping_enabled; |
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extern int disable_irq_post; |
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struct irq_remap_ops { |
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/* The supported capabilities */ |
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int capability; |
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/* Initializes hardware and makes it ready for remapping interrupts */ |
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int (*prepare)(void); |
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/* Enables the remapping hardware */ |
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int (*enable)(void); |
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/* Disables the remapping hardware */ |
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void (*disable)(void); |
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/* Reenables the remapping hardware */ |
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int (*reenable)(int); |
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/* Enable fault handling */ |
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int (*enable_faulting)(void); |
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/* Get the irqdomain associated the IOMMU device */ |
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struct irq_domain *(*get_ir_irq_domain)(struct irq_alloc_info *); |
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/* Get the MSI irqdomain associated with the IOMMU device */ |
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struct irq_domain *(*get_irq_domain)(struct irq_alloc_info *); |
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}; |
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extern struct irq_remap_ops intel_irq_remap_ops; |
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extern struct irq_remap_ops amd_iommu_irq_ops; |
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extern void ir_ack_apic_edge(struct irq_data *data); |
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#else /* CONFIG_IRQ_REMAP */ |
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#define irq_remapping_enabled 0 |
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#define irq_remap_broken 0 |
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#define disable_irq_post 1 |
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#endif /* CONFIG_IRQ_REMAP */ |
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#endif /* __IRQ_REMAPPING_H */
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