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