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1 | /* |
2 | * Copyright (c) 2006, Intel Corporation. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms and conditions of the GNU General Public License, | |
6 | * version 2, as published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope it will be useful, but WITHOUT | |
9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
11 | * more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License along with | |
14 | * this program; if not, write to the Free Software Foundation, Inc., 59 Temple | |
15 | * Place - Suite 330, Boston, MA 02111-1307 USA. | |
16 | * | |
17 | * Copyright (C) Ashok Raj <ashok.raj@intel.com> | |
18 | * Copyright (C) Shaohua Li <shaohua.li@intel.com> | |
19 | */ | |
20 | ||
21 | #ifndef __DMAR_H__ | |
22 | #define __DMAR_H__ | |
23 | ||
24 | #include <linux/acpi.h> | |
25 | #include <linux/types.h> | |
ba395927 | 26 | #include <linux/msi.h> |
10e5247f | 27 | |
ba395927 KA |
28 | #ifdef CONFIG_DMAR |
29 | struct intel_iommu; | |
30 | ||
31 | /* Intel IOMMU detection and initialization functions */ | |
32 | extern void detect_intel_iommu(void); | |
33 | extern int intel_iommu_init(void); | |
10e5247f KA |
34 | |
35 | extern int dmar_table_init(void); | |
36 | extern int early_dmar_detect(void); | |
37 | ||
38 | extern struct list_head dmar_drhd_units; | |
39 | extern struct list_head dmar_rmrr_units; | |
40 | ||
41 | struct dmar_drhd_unit { | |
42 | struct list_head list; /* list of drhd units */ | |
43 | u64 reg_base_addr; /* register base address*/ | |
44 | struct pci_dev **devices; /* target device array */ | |
45 | int devices_cnt; /* target device count */ | |
46 | u8 ignored:1; /* ignore drhd */ | |
47 | u8 include_all:1; | |
48 | struct intel_iommu *iommu; | |
49 | }; | |
50 | ||
51 | struct dmar_rmrr_unit { | |
52 | struct list_head list; /* list of rmrr units */ | |
53 | u64 base_address; /* reserved base address*/ | |
54 | u64 end_address; /* reserved end address */ | |
55 | struct pci_dev **devices; /* target devices */ | |
56 | int devices_cnt; /* target device count */ | |
57 | }; | |
58 | ||
ba395927 KA |
59 | #define for_each_drhd_unit(drhd) \ |
60 | list_for_each_entry(drhd, &dmar_drhd_units, list) | |
61 | #define for_each_rmrr_units(rmrr) \ | |
62 | list_for_each_entry(rmrr, &dmar_rmrr_units, list) | |
63 | #else | |
64 | static inline void detect_intel_iommu(void) | |
65 | { | |
66 | return; | |
67 | } | |
68 | static inline int intel_iommu_init(void) | |
69 | { | |
70 | return -ENODEV; | |
71 | } | |
72 | ||
73 | #endif /* !CONFIG_DMAR */ | |
10e5247f | 74 | #endif /* __DMAR_H__ */ |