Joerg Roedel | 736baef | 2012-03-30 11:47:00 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2012 Advanced Micro Devices, Inc. |
Joerg Roedel | 63ce3ae | 2015-02-04 16:12:55 +0100 | [diff] [blame] | 3 | * Author: Joerg Roedel <jroedel@suse.de> |
Joerg Roedel | 736baef | 2012-03-30 11:47:00 -0700 | [diff] [blame] | 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 | |
Suresh Siddha | 8a8f422 | 2012-03-30 11:47:08 -0700 | [diff] [blame] | 22 | #ifndef __IRQ_REMAPPING_H |
| 23 | #define __IRQ_REMAPPING_H |
Joerg Roedel | 736baef | 2012-03-30 11:47:00 -0700 | [diff] [blame] | 24 | |
| 25 | #ifdef CONFIG_IRQ_REMAP |
| 26 | |
Joerg Roedel | 0c3f173 | 2012-03-30 11:47:02 -0700 | [diff] [blame] | 27 | struct IO_APIC_route_entry; |
| 28 | struct io_apic_irq_attr; |
Joerg Roedel | 4c1bad6 | 2012-03-30 11:47:03 -0700 | [diff] [blame] | 29 | struct irq_data; |
| 30 | struct cpumask; |
Joerg Roedel | 5e2b930 | 2012-03-30 11:47:05 -0700 | [diff] [blame] | 31 | struct pci_dev; |
| 32 | struct msi_msg; |
Joerg Roedel | 0c3f173 | 2012-03-30 11:47:02 -0700 | [diff] [blame] | 33 | |
Neil Horman | 03bbcb2 | 2013-04-16 16:38:32 -0400 | [diff] [blame] | 34 | extern int irq_remap_broken; |
Joerg Roedel | 736baef | 2012-03-30 11:47:00 -0700 | [diff] [blame] | 35 | extern int disable_sourceid_checking; |
| 36 | extern int no_x2apic_optout; |
Joerg Roedel | 078e1ee | 2012-09-26 12:44:43 +0200 | [diff] [blame] | 37 | extern int irq_remapping_enabled; |
Joerg Roedel | 736baef | 2012-03-30 11:47:00 -0700 | [diff] [blame] | 38 | |
| 39 | struct irq_remap_ops { |
Joerg Roedel | 736baef | 2012-03-30 11:47:00 -0700 | [diff] [blame] | 40 | /* Initializes hardware and makes it ready for remapping interrupts */ |
Suresh Siddha | 95a02e9 | 2012-03-30 11:47:07 -0700 | [diff] [blame] | 41 | int (*prepare)(void); |
Joerg Roedel | 736baef | 2012-03-30 11:47:00 -0700 | [diff] [blame] | 42 | |
| 43 | /* Enables the remapping hardware */ |
Suresh Siddha | 95a02e9 | 2012-03-30 11:47:07 -0700 | [diff] [blame] | 44 | int (*enable)(void); |
Joerg Roedel | 4f3d8b6 | 2012-03-30 11:47:01 -0700 | [diff] [blame] | 45 | |
| 46 | /* Disables the remapping hardware */ |
Suresh Siddha | 95a02e9 | 2012-03-30 11:47:07 -0700 | [diff] [blame] | 47 | void (*disable)(void); |
Joerg Roedel | 4f3d8b6 | 2012-03-30 11:47:01 -0700 | [diff] [blame] | 48 | |
| 49 | /* Reenables the remapping hardware */ |
Suresh Siddha | 95a02e9 | 2012-03-30 11:47:07 -0700 | [diff] [blame] | 50 | int (*reenable)(int); |
Joerg Roedel | 4f3d8b6 | 2012-03-30 11:47:01 -0700 | [diff] [blame] | 51 | |
| 52 | /* Enable fault handling */ |
| 53 | int (*enable_faulting)(void); |
Joerg Roedel | 0c3f173 | 2012-03-30 11:47:02 -0700 | [diff] [blame] | 54 | |
| 55 | /* IO-APIC setup routine */ |
| 56 | int (*setup_ioapic_entry)(int irq, struct IO_APIC_route_entry *, |
| 57 | unsigned int, int, |
| 58 | struct io_apic_irq_attr *); |
Joerg Roedel | 4c1bad6 | 2012-03-30 11:47:03 -0700 | [diff] [blame] | 59 | |
| 60 | /* Set the CPU affinity of a remapped interrupt */ |
| 61 | int (*set_affinity)(struct irq_data *data, const struct cpumask *mask, |
| 62 | bool force); |
Joerg Roedel | 9d619f6 | 2012-03-30 11:47:04 -0700 | [diff] [blame] | 63 | |
| 64 | /* Free an IRQ */ |
| 65 | int (*free_irq)(int); |
Joerg Roedel | 5e2b930 | 2012-03-30 11:47:05 -0700 | [diff] [blame] | 66 | |
| 67 | /* Create MSI msg to use for interrupt remapping */ |
| 68 | void (*compose_msi_msg)(struct pci_dev *, |
| 69 | unsigned int, unsigned int, |
| 70 | struct msi_msg *, u8); |
| 71 | |
| 72 | /* Allocate remapping resources for MSI */ |
| 73 | int (*msi_alloc_irq)(struct pci_dev *, int, int); |
| 74 | |
| 75 | /* Setup the remapped MSI irq */ |
| 76 | int (*msi_setup_irq)(struct pci_dev *, unsigned int, int, int); |
| 77 | |
| 78 | /* Setup interrupt remapping for an HPET MSI */ |
Yijing Wang | 5fc24d8 | 2014-09-17 17:32:19 +0800 | [diff] [blame] | 79 | int (*alloc_hpet_msi)(unsigned int, unsigned int); |
Joerg Roedel | 736baef | 2012-03-30 11:47:00 -0700 | [diff] [blame] | 80 | }; |
| 81 | |
| 82 | extern struct irq_remap_ops intel_irq_remap_ops; |
Joerg Roedel | 6b474b8 | 2012-06-26 16:46:04 +0200 | [diff] [blame] | 83 | extern struct irq_remap_ops amd_iommu_irq_ops; |
Joerg Roedel | 736baef | 2012-03-30 11:47:00 -0700 | [diff] [blame] | 84 | |
Joerg Roedel | 05152a0 | 2012-06-15 16:53:51 +0200 | [diff] [blame] | 85 | #else /* CONFIG_IRQ_REMAP */ |
| 86 | |
| 87 | #define irq_remapping_enabled 0 |
Neil Horman | 03bbcb2 | 2013-04-16 16:38:32 -0400 | [diff] [blame] | 88 | #define irq_remap_broken 0 |
Joerg Roedel | 05152a0 | 2012-06-15 16:53:51 +0200 | [diff] [blame] | 89 | |
Joerg Roedel | 736baef | 2012-03-30 11:47:00 -0700 | [diff] [blame] | 90 | #endif /* CONFIG_IRQ_REMAP */ |
| 91 | |
Suresh Siddha | 8a8f422 | 2012-03-30 11:47:08 -0700 | [diff] [blame] | 92 | #endif /* __IRQ_REMAPPING_H */ |