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1 | /* |
2 | * AGPGART module version 0.99 |
3 | * Copyright (C) 1999 Jeff Hartmann |
4 | * Copyright (C) 1999 Precision Insight, Inc. |
5 | * Copyright (C) 1999 Xi Graphics, Inc. |
6 | * |
7 | * Permission is hereby granted, free of charge, to any person obtaining a |
8 | * copy of this software and associated documentation files (the "Software"), |
9 | * to deal in the Software without restriction, including without limitation |
10 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
11 | * and/or sell copies of the Software, and to permit persons to whom the |
12 | * Software is furnished to do so, subject to the following conditions: |
13 | * |
14 | * The above copyright notice and this permission notice shall be included |
15 | * in all copies or substantial portions of the Software. |
16 | * |
17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
18 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
20 | * JEFF HARTMANN, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM, |
21 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
22 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE |
23 | * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
24 | * |
25 | */ |
26 | #ifndef _AGP_H |
27 | #define _AGP_H 1 |
28 | |
29 | #include <linux/mutex.h> |
30 | #include <linux/agp_backend.h> |
31 | #include <uapi/linux/agpgart.h> |
32 | |
33 | #define AGPGART_MINOR 175 |
34 | |
35 | struct agp_info { |
36 | struct agp_version version; /* version of the driver */ |
37 | u32 bridge_id; /* bridge vendor/device */ |
38 | u32 agp_mode; /* mode info of bridge */ |
39 | unsigned long aper_base;/* base of aperture */ |
40 | size_t aper_size; /* size of aperture */ |
41 | size_t pg_total; /* max pages (swap + system) */ |
42 | size_t pg_system; /* max pages (system) */ |
43 | size_t pg_used; /* current pages used */ |
44 | }; |
45 | |
46 | struct agp_setup { |
47 | u32 agp_mode; /* mode info of bridge */ |
48 | }; |
49 | |
50 | /* |
51 | * The "prot" down below needs still a "sleep" flag somehow ... |
52 | */ |
53 | struct agp_segment { |
54 | off_t pg_start; /* starting page to populate */ |
55 | size_t pg_count; /* number of pages */ |
56 | int prot; /* prot flags for mmap */ |
57 | }; |
58 | |
59 | struct agp_segment_priv { |
60 | off_t pg_start; |
61 | size_t pg_count; |
62 | pgprot_t prot; |
63 | }; |
64 | |
65 | struct agp_region { |
66 | pid_t pid; /* pid of process */ |
67 | size_t seg_count; /* number of segments */ |
68 | struct agp_segment *seg_list; |
69 | }; |
70 | |
71 | struct agp_allocate { |
72 | int key; /* tag of allocation */ |
73 | size_t pg_count; /* number of pages */ |
74 | u32 type; /* 0 == normal, other devspec */ |
75 | u32 physical; /* device specific (some devices |
76 | * need a phys address of the |
77 | * actual page behind the gatt |
78 | * table) */ |
79 | }; |
80 | |
81 | struct agp_bind { |
82 | int key; /* tag of allocation */ |
83 | off_t pg_start; /* starting page to populate */ |
84 | }; |
85 | |
86 | struct agp_unbind { |
87 | int key; /* tag of allocation */ |
88 | u32 priority; /* priority for paging out */ |
89 | }; |
90 | |
91 | struct agp_client { |
92 | struct agp_client *next; |
93 | struct agp_client *prev; |
94 | pid_t pid; |
95 | int num_segments; |
96 | struct agp_segment_priv **segments; |
97 | }; |
98 | |
99 | struct agp_controller { |
100 | struct agp_controller *next; |
101 | struct agp_controller *prev; |
102 | pid_t pid; |
103 | int num_clients; |
104 | struct agp_memory *pool; |
105 | struct agp_client *clients; |
106 | }; |
107 | |
108 | #define AGP_FF_ALLOW_CLIENT 0 |
109 | #define AGP_FF_ALLOW_CONTROLLER 1 |
110 | #define AGP_FF_IS_CLIENT 2 |
111 | #define AGP_FF_IS_CONTROLLER 3 |
112 | #define AGP_FF_IS_VALID 4 |
113 | |
114 | struct agp_file_private { |
115 | struct agp_file_private *next; |
116 | struct agp_file_private *prev; |
117 | pid_t my_pid; |
118 | unsigned long access_flags; /* long req'd for set_bit --RR */ |
119 | }; |
120 | |
121 | struct agp_front_data { |
122 | struct mutex agp_mutex; |
123 | struct agp_controller *current_controller; |
124 | struct agp_controller *controllers; |
125 | struct agp_file_private *file_priv_list; |
126 | bool used_by_controller; |
127 | bool backend_acquired; |
128 | }; |
129 | |
130 | #endif /* _AGP_H */ |
131 |
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