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| 1 | /* |
| 2 | * Copyright (C) 2012 Advanced Micro Devices, Inc. |
| 3 | * Author: Joerg Roedel <joerg.roedel@amd.com> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 as published |
| 7 | * by the Free Software Foundation. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write to the Free Software |
| 16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 17 | * |
| 18 | * This header file contains stuff that is shared between different interrupt |
| 19 | * remapping drivers but with no need to be visible outside of the IOMMU layer. |
| 20 | */ |
| 21 | |
| 22 | #ifndef __IRQ_REMAPPING_H |
| 23 | #define __IRQ_REMAPPING_H |
| 24 | |
| 25 | #ifdef CONFIG_IRQ_REMAP |
| 26 | |
| 27 | struct IO_APIC_route_entry; |
| 28 | struct io_apic_irq_attr; |
| 29 | struct irq_data; |
| 30 | struct cpumask; |
| 31 | struct pci_dev; |
| 32 | struct msi_msg; |
| 33 | |
| 34 | extern int disable_irq_remap; |
| 35 | extern int disable_sourceid_checking; |
| 36 | extern int no_x2apic_optout; |
| 37 | |
| 38 | struct irq_remap_ops { |
| 39 | /* Check whether Interrupt Remapping is supported */ |
| 40 | int (*supported)(void); |
| 41 | |
| 42 | /* Initializes hardware and makes it ready for remapping interrupts */ |
| 43 | int (*prepare)(void); |
| 44 | |
| 45 | /* Enables the remapping hardware */ |
| 46 | int (*enable)(void); |
| 47 | |
| 48 | /* Disables the remapping hardware */ |
| 49 | void (*disable)(void); |
| 50 | |
| 51 | /* Reenables the remapping hardware */ |
| 52 | int (*reenable)(int); |
| 53 | |
| 54 | /* Enable fault handling */ |
| 55 | int (*enable_faulting)(void); |
| 56 | |
| 57 | /* IO-APIC setup routine */ |
| 58 | int (*setup_ioapic_entry)(int irq, struct IO_APIC_route_entry *, |
| 59 | unsigned int, int, |
| 60 | struct io_apic_irq_attr *); |
| 61 | |
| 62 | /* Set the CPU affinity of a remapped interrupt */ |
| 63 | int (*set_affinity)(struct irq_data *data, const struct cpumask *mask, |
| 64 | bool force); |
| 65 | |
| 66 | /* Free an IRQ */ |
| 67 | int (*free_irq)(int); |
| 68 | |
| 69 | /* Create MSI msg to use for interrupt remapping */ |
| 70 | void (*compose_msi_msg)(struct pci_dev *, |
| 71 | unsigned int, unsigned int, |
| 72 | struct msi_msg *, u8); |
| 73 | |
| 74 | /* Allocate remapping resources for MSI */ |
| 75 | int (*msi_alloc_irq)(struct pci_dev *, int, int); |
| 76 | |
| 77 | /* Setup the remapped MSI irq */ |
| 78 | int (*msi_setup_irq)(struct pci_dev *, unsigned int, int, int); |
| 79 | |
| 80 | /* Setup interrupt remapping for an HPET MSI */ |
| 81 | int (*setup_hpet_msi)(unsigned int, unsigned int); |
| 82 | }; |
| 83 | |
| 84 | extern struct irq_remap_ops intel_irq_remap_ops; |
| 85 | |
| 86 | #endif /* CONFIG_IRQ_REMAP */ |
| 87 | |
| 88 | #endif /* __IRQ_REMAPPING_H */ |
| 89 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9
