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736baef4 JR |
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 | ||
8a8f422d SS |
22 | #ifndef __X86_IRQ_REMAPPING_H |
23 | #define __X86_IRQ_REMAPPING_H | |
736baef4 | 24 | |
399988ee | 25 | #include <asm/io_apic.h> |
736baef4 | 26 | |
35d3d814 JR |
27 | struct IO_APIC_route_entry; |
28 | struct io_apic_irq_attr; | |
29 | struct irq_chip; | |
30 | struct msi_msg; | |
31 | struct pci_dev; | |
32 | struct irq_cfg; | |
33 | ||
399988ee | 34 | #ifdef CONFIG_IRQ_REMAP |
0c3f173a | 35 | |
03bbcb2e | 36 | extern void set_irq_remapping_broken(void); |
95a02e97 SS |
37 | extern int irq_remapping_prepare(void); |
38 | extern int irq_remapping_enable(void); | |
39 | extern void irq_remapping_disable(void); | |
40 | extern int irq_remapping_reenable(int); | |
41 | extern int irq_remap_enable_fault_handling(void); | |
42 | extern int setup_ioapic_remapped_entry(int irq, | |
43 | struct IO_APIC_route_entry *entry, | |
44 | unsigned int destination, | |
45 | int vector, | |
46 | struct io_apic_irq_attr *attr); | |
95a02e97 SS |
47 | extern void free_remapped_irq(int irq); |
48 | extern void compose_remapped_msi_msg(struct pci_dev *pdev, | |
49 | unsigned int irq, unsigned int dest, | |
50 | struct msi_msg *msg, u8 hpet_id); | |
95a02e97 | 51 | extern int setup_hpet_msi_remapped(unsigned int irq, unsigned int id); |
6a9f5de2 | 52 | extern void panic_if_irq_remap(const char *msg); |
2976fd84 JR |
53 | extern bool setup_remapped_irq(int irq, |
54 | struct irq_cfg *cfg, | |
55 | struct irq_chip *chip); | |
736baef4 | 56 | |
9b1b0e42 JR |
57 | void irq_remap_modify_chip_defaults(struct irq_chip *chip); |
58 | ||
736baef4 JR |
59 | #else /* CONFIG_IRQ_REMAP */ |
60 | ||
03bbcb2e | 61 | static inline void set_irq_remapping_broken(void) { } |
95a02e97 SS |
62 | static inline int irq_remapping_prepare(void) { return -ENODEV; } |
63 | static inline int irq_remapping_enable(void) { return -ENODEV; } | |
64 | static inline void irq_remapping_disable(void) { } | |
65 | static inline int irq_remapping_reenable(int eim) { return -ENODEV; } | |
66 | static inline int irq_remap_enable_fault_handling(void) { return -ENODEV; } | |
67 | static inline int setup_ioapic_remapped_entry(int irq, | |
68 | struct IO_APIC_route_entry *entry, | |
69 | unsigned int destination, | |
70 | int vector, | |
71 | struct io_apic_irq_attr *attr) | |
0c3f173a JR |
72 | { |
73 | return -ENODEV; | |
74 | } | |
95a02e97 SS |
75 | static inline void free_remapped_irq(int irq) { } |
76 | static inline void compose_remapped_msi_msg(struct pci_dev *pdev, | |
77 | unsigned int irq, unsigned int dest, | |
78 | struct msi_msg *msg, u8 hpet_id) | |
5e2b930b JR |
79 | { |
80 | } | |
95a02e97 | 81 | static inline int setup_hpet_msi_remapped(unsigned int irq, unsigned int id) |
5e2b930b JR |
82 | { |
83 | return -ENODEV; | |
84 | } | |
6a9f5de2 JR |
85 | |
86 | static inline void panic_if_irq_remap(const char *msg) | |
87 | { | |
88 | } | |
9b1b0e42 | 89 | |
9b1b0e42 JR |
90 | static inline void irq_remap_modify_chip_defaults(struct irq_chip *chip) |
91 | { | |
92 | } | |
93 | ||
2976fd84 JR |
94 | static inline bool setup_remapped_irq(int irq, |
95 | struct irq_cfg *cfg, | |
96 | struct irq_chip *chip) | |
97 | { | |
98 | return false; | |
99 | } | |
736baef4 JR |
100 | #endif /* CONFIG_IRQ_REMAP */ |
101 | ||
a553b142 TG |
102 | #define dmar_alloc_hwirq() irq_alloc_hwirq(-1) |
103 | #define dmar_free_hwirq irq_free_hwirq | |
104 | ||
8a8f422d | 105 | #endif /* __X86_IRQ_REMAPPING_H */ |