]>
Commit | Line | Data |
---|---|---|
f6e2e6b6 JR |
1 | /* |
2 | * Copyright (C) 2007-2008 Advanced Micro Devices, Inc. | |
3 | * Author: Joerg Roedel <joerg.roedel@amd.com> | |
4 | * Leo Duran <leo.duran@amd.com> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License version 2 as published | |
8 | * by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
18 | */ | |
19 | ||
20 | #include <linux/pci.h> | |
21 | #include <linux/acpi.h> | |
22 | #include <linux/gfp.h> | |
23 | #include <linux/list.h> | |
24 | #include <asm/pci-direct.h> | |
25 | #include <asm/amd_iommu_types.h> | |
26 | #include <asm/gart.h> | |
27 | ||
28 | /* | |
29 | * definitions for the ACPI scanning code | |
30 | */ | |
31 | #define UPDATE_LAST_BDF(x) do {\ | |
32 | if ((x) > amd_iommu_last_bdf) \ | |
33 | amd_iommu_last_bdf = (x); \ | |
34 | } while (0); | |
35 | ||
36 | #define DEVID(bus, devfn) (((bus) << 8) | (devfn)) | |
37 | #define PCI_BUS(x) (((x) >> 8) & 0xff) | |
38 | #define IVRS_HEADER_LENGTH 48 | |
39 | #define TBL_SIZE(x) (1 << (PAGE_SHIFT + get_order(amd_iommu_last_bdf * (x)))) | |
40 | ||
41 | #define ACPI_IVHD_TYPE 0x10 | |
42 | #define ACPI_IVMD_TYPE_ALL 0x20 | |
43 | #define ACPI_IVMD_TYPE 0x21 | |
44 | #define ACPI_IVMD_TYPE_RANGE 0x22 | |
45 | ||
46 | #define IVHD_DEV_ALL 0x01 | |
47 | #define IVHD_DEV_SELECT 0x02 | |
48 | #define IVHD_DEV_SELECT_RANGE_START 0x03 | |
49 | #define IVHD_DEV_RANGE_END 0x04 | |
50 | #define IVHD_DEV_ALIAS 0x42 | |
51 | #define IVHD_DEV_ALIAS_RANGE 0x43 | |
52 | #define IVHD_DEV_EXT_SELECT 0x46 | |
53 | #define IVHD_DEV_EXT_SELECT_RANGE 0x47 | |
54 | ||
55 | #define IVHD_FLAG_HT_TUN_EN 0x00 | |
56 | #define IVHD_FLAG_PASSPW_EN 0x01 | |
57 | #define IVHD_FLAG_RESPASSPW_EN 0x02 | |
58 | #define IVHD_FLAG_ISOC_EN 0x03 | |
59 | ||
60 | #define IVMD_FLAG_EXCL_RANGE 0x08 | |
61 | #define IVMD_FLAG_UNITY_MAP 0x01 | |
62 | ||
63 | #define ACPI_DEVFLAG_INITPASS 0x01 | |
64 | #define ACPI_DEVFLAG_EXTINT 0x02 | |
65 | #define ACPI_DEVFLAG_NMI 0x04 | |
66 | #define ACPI_DEVFLAG_SYSMGT1 0x10 | |
67 | #define ACPI_DEVFLAG_SYSMGT2 0x20 | |
68 | #define ACPI_DEVFLAG_LINT0 0x40 | |
69 | #define ACPI_DEVFLAG_LINT1 0x80 | |
70 | #define ACPI_DEVFLAG_ATSDIS 0x10000000 | |
71 | ||
72 | struct ivhd_header { | |
73 | u8 type; | |
74 | u8 flags; | |
75 | u16 length; | |
76 | u16 devid; | |
77 | u16 cap_ptr; | |
78 | u64 mmio_phys; | |
79 | u16 pci_seg; | |
80 | u16 info; | |
81 | u32 reserved; | |
82 | } __attribute__((packed)); | |
83 | ||
84 | struct ivhd_entry { | |
85 | u8 type; | |
86 | u16 devid; | |
87 | u8 flags; | |
88 | u32 ext; | |
89 | } __attribute__((packed)); | |
90 | ||
91 | struct ivmd_header { | |
92 | u8 type; | |
93 | u8 flags; | |
94 | u16 length; | |
95 | u16 devid; | |
96 | u16 aux; | |
97 | u64 resv; | |
98 | u64 range_start; | |
99 | u64 range_length; | |
100 | } __attribute__((packed)); | |
101 | ||
928abd25 JR |
102 | static int __initdata amd_iommu_disable; |
103 | ||
104 | u16 amd_iommu_last_bdf; | |
105 | struct list_head amd_iommu_unity_map; | |
106 | unsigned amd_iommu_aperture_order = 26; | |
107 | int amd_iommu_isolate; | |
108 | ||
109 | struct list_head amd_iommu_list; | |
110 | struct dev_table_entry *amd_iommu_dev_table; | |
111 | u16 *amd_iommu_alias_table; | |
112 | struct amd_iommu **amd_iommu_rlookup_table; | |
113 | struct protection_domain **amd_iommu_pd_table; | |
114 | unsigned long *amd_iommu_pd_alloc_bitmap; | |
115 | ||
116 | static u32 dev_table_size; | |
117 | static u32 alias_table_size; | |
118 | static u32 rlookup_table_size; |