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1da177e4 LT |
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 | ||
27 | #ifndef _AGP_H | |
28 | #define _AGP_H 1 | |
29 | ||
1da177e4 LT |
30 | #define AGPIOC_BASE 'A' |
31 | #define AGPIOC_INFO _IOR (AGPIOC_BASE, 0, struct agp_info*) | |
32 | #define AGPIOC_ACQUIRE _IO (AGPIOC_BASE, 1) | |
33 | #define AGPIOC_RELEASE _IO (AGPIOC_BASE, 2) | |
34 | #define AGPIOC_SETUP _IOW (AGPIOC_BASE, 3, struct agp_setup*) | |
35 | #define AGPIOC_RESERVE _IOW (AGPIOC_BASE, 4, struct agp_region*) | |
36 | #define AGPIOC_PROTECT _IOW (AGPIOC_BASE, 5, struct agp_region*) | |
37 | #define AGPIOC_ALLOCATE _IOWR(AGPIOC_BASE, 6, struct agp_allocate*) | |
38 | #define AGPIOC_DEALLOCATE _IOW (AGPIOC_BASE, 7, int) | |
39 | #define AGPIOC_BIND _IOW (AGPIOC_BASE, 8, struct agp_bind*) | |
40 | #define AGPIOC_UNBIND _IOW (AGPIOC_BASE, 9, struct agp_unbind*) | |
a13af4b4 | 41 | #define AGPIOC_CHIPSET_FLUSH _IO (AGPIOC_BASE, 10) |
1da177e4 LT |
42 | |
43 | #define AGP_DEVICE "/dev/agpgart" | |
44 | ||
45 | #ifndef TRUE | |
46 | #define TRUE 1 | |
47 | #endif | |
48 | ||
49 | #ifndef FALSE | |
50 | #define FALSE 0 | |
51 | #endif | |
52 | ||
53 | #ifndef __KERNEL__ | |
54 | #include <linux/types.h> | |
55 | #include <asm/types.h> | |
56 | ||
57 | struct agp_version { | |
58 | __u16 major; | |
59 | __u16 minor; | |
60 | }; | |
61 | ||
62 | typedef struct _agp_info { | |
63 | struct agp_version version; /* version of the driver */ | |
64 | __u32 bridge_id; /* bridge vendor/device */ | |
65 | __u32 agp_mode; /* mode info of bridge */ | |
66 | unsigned long aper_base;/* base of aperture */ | |
67 | size_t aper_size; /* size of aperture */ | |
68 | size_t pg_total; /* max pages (swap + system) */ | |
69 | size_t pg_system; /* max pages (system) */ | |
70 | size_t pg_used; /* current pages used */ | |
71 | } agp_info; | |
72 | ||
73 | typedef struct _agp_setup { | |
74 | __u32 agp_mode; /* mode info of bridge */ | |
75 | } agp_setup; | |
76 | ||
77 | /* | |
78 | * The "prot" down below needs still a "sleep" flag somehow ... | |
79 | */ | |
80 | typedef struct _agp_segment { | |
81 | off_t pg_start; /* starting page to populate */ | |
82 | size_t pg_count; /* number of pages */ | |
83 | int prot; /* prot flags for mmap */ | |
84 | } agp_segment; | |
85 | ||
86 | typedef struct _agp_region { | |
87 | pid_t pid; /* pid of process */ | |
88 | size_t seg_count; /* number of segments */ | |
89 | struct _agp_segment *seg_list; | |
90 | } agp_region; | |
91 | ||
92 | typedef struct _agp_allocate { | |
93 | int key; /* tag of allocation */ | |
94 | size_t pg_count; /* number of pages */ | |
95 | __u32 type; /* 0 == normal, other devspec */ | |
96 | __u32 physical; /* device specific (some devices | |
97 | * need a phys address of the | |
98 | * actual page behind the gatt | |
99 | * table) */ | |
100 | } agp_allocate; | |
101 | ||
102 | typedef struct _agp_bind { | |
103 | int key; /* tag of allocation */ | |
104 | off_t pg_start; /* starting page to populate */ | |
105 | } agp_bind; | |
106 | ||
107 | typedef struct _agp_unbind { | |
108 | int key; /* tag of allocation */ | |
109 | __u32 priority; /* priority for paging out */ | |
110 | } agp_unbind; | |
111 | ||
112 | #else /* __KERNEL__ */ | |
16867823 | 113 | #include <linux/mutex.h> |
72b9760b | 114 | #include <linux/agp_backend.h> |
1da177e4 LT |
115 | |
116 | #define AGPGART_MINOR 175 | |
117 | ||
118 | struct agp_info { | |
119 | struct agp_version version; /* version of the driver */ | |
120 | u32 bridge_id; /* bridge vendor/device */ | |
121 | u32 agp_mode; /* mode info of bridge */ | |
122 | unsigned long aper_base;/* base of aperture */ | |
123 | size_t aper_size; /* size of aperture */ | |
124 | size_t pg_total; /* max pages (swap + system) */ | |
125 | size_t pg_system; /* max pages (system) */ | |
126 | size_t pg_used; /* current pages used */ | |
127 | }; | |
128 | ||
129 | struct agp_setup { | |
130 | u32 agp_mode; /* mode info of bridge */ | |
131 | }; | |
132 | ||
133 | /* | |
134 | * The "prot" down below needs still a "sleep" flag somehow ... | |
135 | */ | |
136 | struct agp_segment { | |
137 | off_t pg_start; /* starting page to populate */ | |
138 | size_t pg_count; /* number of pages */ | |
139 | int prot; /* prot flags for mmap */ | |
140 | }; | |
141 | ||
142 | struct agp_segment_priv { | |
143 | off_t pg_start; | |
144 | size_t pg_count; | |
145 | pgprot_t prot; | |
146 | }; | |
147 | ||
148 | struct agp_region { | |
149 | pid_t pid; /* pid of process */ | |
150 | size_t seg_count; /* number of segments */ | |
151 | struct agp_segment *seg_list; | |
152 | }; | |
153 | ||
154 | struct agp_allocate { | |
155 | int key; /* tag of allocation */ | |
156 | size_t pg_count; /* number of pages */ | |
157 | u32 type; /* 0 == normal, other devspec */ | |
158 | u32 physical; /* device specific (some devices | |
159 | * need a phys address of the | |
160 | * actual page behind the gatt | |
161 | * table) */ | |
162 | }; | |
163 | ||
164 | struct agp_bind { | |
165 | int key; /* tag of allocation */ | |
166 | off_t pg_start; /* starting page to populate */ | |
167 | }; | |
168 | ||
169 | struct agp_unbind { | |
170 | int key; /* tag of allocation */ | |
171 | u32 priority; /* priority for paging out */ | |
172 | }; | |
173 | ||
174 | struct agp_client { | |
175 | struct agp_client *next; | |
176 | struct agp_client *prev; | |
177 | pid_t pid; | |
178 | int num_segments; | |
179 | struct agp_segment_priv **segments; | |
180 | }; | |
181 | ||
182 | struct agp_controller { | |
183 | struct agp_controller *next; | |
184 | struct agp_controller *prev; | |
185 | pid_t pid; | |
186 | int num_clients; | |
187 | struct agp_memory *pool; | |
188 | struct agp_client *clients; | |
189 | }; | |
190 | ||
191 | #define AGP_FF_ALLOW_CLIENT 0 | |
192 | #define AGP_FF_ALLOW_CONTROLLER 1 | |
193 | #define AGP_FF_IS_CLIENT 2 | |
194 | #define AGP_FF_IS_CONTROLLER 3 | |
195 | #define AGP_FF_IS_VALID 4 | |
196 | ||
197 | struct agp_file_private { | |
198 | struct agp_file_private *next; | |
199 | struct agp_file_private *prev; | |
200 | pid_t my_pid; | |
64b33619 | 201 | unsigned long access_flags; /* long req'd for set_bit --RR */ |
1da177e4 LT |
202 | }; |
203 | ||
204 | struct agp_front_data { | |
16867823 | 205 | struct mutex agp_mutex; |
1da177e4 LT |
206 | struct agp_controller *current_controller; |
207 | struct agp_controller *controllers; | |
208 | struct agp_file_private *file_priv_list; | |
209 | u8 used_by_controller; | |
210 | u8 backend_acquired; | |
211 | }; | |
212 | ||
213 | #endif /* __KERNEL__ */ | |
214 | ||
215 | #endif /* _AGP_H */ |