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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 the interface of the interrupt remapping code to | |
19 | * the x86 interrupt management code. | |
20 | */ | |
21 | ||
22 | #ifndef __X86_INTR_REMAPPING_H | |
23 | #define __X86_INTR_REMAPPING_H | |
24 | ||
25 | #ifdef CONFIG_IRQ_REMAP | |
26 | ||
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27 | struct IO_APIC_route_entry; |
28 | struct io_apic_irq_attr; | |
29 | ||
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30 | extern int intr_remapping_enabled; |
31 | ||
32 | extern void setup_intr_remapping(void); | |
33 | extern int intr_remapping_supported(void); | |
34 | extern int intr_hardware_init(void); | |
35 | extern int intr_hardware_enable(void); | |
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36 | extern void intr_hardware_disable(void); |
37 | extern int intr_hardware_reenable(int); | |
38 | extern int intr_enable_fault_handling(void); | |
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39 | extern int intr_setup_ioapic_entry(int irq, |
40 | struct IO_APIC_route_entry *entry, | |
41 | unsigned int destination, int vector, | |
42 | struct io_apic_irq_attr *attr); | |
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43 | |
44 | #else /* CONFIG_IRQ_REMAP */ | |
45 | ||
46 | #define intr_remapping_enabled 0 | |
47 | ||
48 | static inline void setup_intr_remapping(void) { } | |
49 | static inline int intr_remapping_supported(void) { return 0; } | |
50 | static inline int intr_hardware_init(void) { return -ENODEV; } | |
51 | static inline int intr_hardware_enable(void) { return -ENODEV; } | |
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52 | static inline void intr_hardware_disable(void) { } |
53 | static inline int intr_hardware_reenable(int eim) { return -ENODEV; } | |
54 | static inline int intr_enable_fault_handling(void) { return -ENODEV; } | |
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55 | static inline int intr_setup_ioapic_entry(int irq, |
56 | struct IO_APIC_route_entry *entry, | |
57 | unsigned int destination, int vector, | |
58 | struct io_apic_irq_attr *attr) | |
59 | { | |
60 | return -ENODEV; | |
61 | } | |
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62 | #endif /* CONFIG_IRQ_REMAP */ |
63 | ||
64 | #endif /* __X86_INTR_REMAPPING_H */ |