ae933ecfd8f0e9a4f0a74d7936bd62a8bab117c5
[platform/adaptation/renesas_rcar/renesas_kernel.git] / arch / x86 / include / asm / intr_remapping.h
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
27 struct IO_APIC_route_entry;
28 struct io_apic_irq_attr;
29
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);
36 extern void intr_hardware_disable(void);
37 extern int intr_hardware_reenable(int);
38 extern int intr_enable_fault_handling(void);
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);
43 extern int intr_set_affinity(struct irq_data *data,
44                              const struct cpumask *mask,
45                              bool force);
46
47 #else  /* CONFIG_IRQ_REMAP */
48
49 #define intr_remapping_enabled  0
50
51 static inline void setup_intr_remapping(void) { }
52 static inline int intr_remapping_supported(void) { return 0; }
53 static inline int intr_hardware_init(void) { return -ENODEV; }
54 static inline int intr_hardware_enable(void) { return -ENODEV; }
55 static inline void intr_hardware_disable(void) { }
56 static inline int intr_hardware_reenable(int eim) { return -ENODEV; }
57 static inline int intr_enable_fault_handling(void) { return -ENODEV; }
58 static inline int intr_setup_ioapic_entry(int irq,
59                                           struct IO_APIC_route_entry *entry,
60                                           unsigned int destination, int vector,
61                                           struct io_apic_irq_attr *attr)
62 {
63         return -ENODEV;
64 }
65 static inline int intr_set_affinity(struct irq_data *data,
66                                     const struct cpumask *mask,
67                                     bool force)
68 {
69         return 0;
70 }
71 #endif /* CONFIG_IRQ_REMAP */
72
73 #endif /* __X86_INTR_REMAPPING_H */