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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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
30#include <linux/agp_backend.h>
31
32#define AGPIOC_BASE 'A'
33#define AGPIOC_INFO _IOR (AGPIOC_BASE, 0, struct agp_info*)
34#define AGPIOC_ACQUIRE _IO (AGPIOC_BASE, 1)
35#define AGPIOC_RELEASE _IO (AGPIOC_BASE, 2)
36#define AGPIOC_SETUP _IOW (AGPIOC_BASE, 3, struct agp_setup*)
37#define AGPIOC_RESERVE _IOW (AGPIOC_BASE, 4, struct agp_region*)
38#define AGPIOC_PROTECT _IOW (AGPIOC_BASE, 5, struct agp_region*)
39#define AGPIOC_ALLOCATE _IOWR(AGPIOC_BASE, 6, struct agp_allocate*)
40#define AGPIOC_DEALLOCATE _IOW (AGPIOC_BASE, 7, int)
41#define AGPIOC_BIND _IOW (AGPIOC_BASE, 8, struct agp_bind*)
42#define AGPIOC_UNBIND _IOW (AGPIOC_BASE, 9, struct agp_unbind*)
43
44#define AGP_DEVICE "/dev/agpgart"
45
46#ifndef TRUE
47#define TRUE 1
48#endif
49
50#ifndef FALSE
51#define FALSE 0
52#endif
53
54#ifndef __KERNEL__
55#include <linux/types.h>
56#include <asm/types.h>
57
58struct agp_version {
59 __u16 major;
60 __u16 minor;
61};
62
63typedef struct _agp_info {
64 struct agp_version version; /* version of the driver */
65 __u32 bridge_id; /* bridge vendor/device */
66 __u32 agp_mode; /* mode info of bridge */
67 unsigned long aper_base;/* base of aperture */
68 size_t aper_size; /* size of aperture */
69 size_t pg_total; /* max pages (swap + system) */
70 size_t pg_system; /* max pages (system) */
71 size_t pg_used; /* current pages used */
72} agp_info;
73
74typedef struct _agp_setup {
75 __u32 agp_mode; /* mode info of bridge */
76} agp_setup;
77
78/*
79 * The "prot" down below needs still a "sleep" flag somehow ...
80 */
81typedef struct _agp_segment {
82 off_t pg_start; /* starting page to populate */
83 size_t pg_count; /* number of pages */
84 int prot; /* prot flags for mmap */
85} agp_segment;
86
87typedef struct _agp_region {
88 pid_t pid; /* pid of process */
89 size_t seg_count; /* number of segments */
90 struct _agp_segment *seg_list;
91} agp_region;
92
93typedef struct _agp_allocate {
94 int key; /* tag of allocation */
95 size_t pg_count; /* number of pages */
96 __u32 type; /* 0 == normal, other devspec */
97 __u32 physical; /* device specific (some devices
98 * need a phys address of the
99 * actual page behind the gatt
100 * table) */
101} agp_allocate;
102
103typedef struct _agp_bind {
104 int key; /* tag of allocation */
105 off_t pg_start; /* starting page to populate */
106} agp_bind;
107
108typedef struct _agp_unbind {
109 int key; /* tag of allocation */
110 __u32 priority; /* priority for paging out */
111} agp_unbind;
112
113#else /* __KERNEL__ */
akpm@osdl.org16867822006-01-13 15:51:02 -0800114#include <linux/mutex.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700115
116#define AGPGART_MINOR 175
117
118struct 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
129struct 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 */
136struct 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
142struct agp_segment_priv {
143 off_t pg_start;
144 size_t pg_count;
145 pgprot_t prot;
146};
147
148struct 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
154struct 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
164struct agp_bind {
165 int key; /* tag of allocation */
166 off_t pg_start; /* starting page to populate */
167};
168
169struct agp_unbind {
170 int key; /* tag of allocation */
171 u32 priority; /* priority for paging out */
172};
173
174struct 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
182struct 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
197struct agp_file_private {
198 struct agp_file_private *next;
199 struct agp_file_private *prev;
200 pid_t my_pid;
201 long access_flags; /* long req'd for set_bit --RR */
202};
203
204struct agp_front_data {
akpm@osdl.org16867822006-01-13 15:51:02 -0800205 struct mutex agp_mutex;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700206 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 */