master
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
29
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*)
41#define AGPIOC_CHIPSET_FLUSH _IO (AGPIOC_BASE, 10)
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#include <linux/types.h>
54
55struct agp_version {
56 __u16 major;
57 __u16 minor;
58};
59
60typedef struct _agp_info {
61 struct agp_version version; /* version of the driver */
62 __u32 bridge_id; /* bridge vendor/device */
63 __u32 agp_mode; /* mode info of bridge */
64 unsigned long aper_base;/* base of aperture */
65 __kernel_size_t aper_size; /* size of aperture */
66 __kernel_size_t pg_total; /* max pages (swap + system) */
67 __kernel_size_t pg_system; /* max pages (system) */
68 __kernel_size_t pg_used; /* current pages used */
69} agp_info;
70
71typedef struct _agp_setup {
72 __u32 agp_mode; /* mode info of bridge */
73} agp_setup;
74
75/*
76 * The "prot" down below needs still a "sleep" flag somehow ...
77 */
78typedef struct _agp_segment {
79 __kernel_off_t pg_start; /* starting page to populate */
80 __kernel_size_t pg_count; /* number of pages */
81 int prot; /* prot flags for mmap */
82} agp_segment;
83
84typedef struct _agp_region {
85 __kernel_pid_t pid; /* pid of process */
86 __kernel_size_t seg_count; /* number of segments */
87 struct _agp_segment *seg_list;
88} agp_region;
89
90typedef struct _agp_allocate {
91 int key; /* tag of allocation */
92 __kernel_size_t pg_count;/* number of pages */
93 __u32 type; /* 0 == normal, other devspec */
94 __u32 physical; /* device specific (some devices
95 * need a phys address of the
96 * actual page behind the gatt
97 * table) */
98} agp_allocate;
99
100typedef struct _agp_bind {
101 int key; /* tag of allocation */
102 __kernel_off_t pg_start;/* starting page to populate */
103} agp_bind;
104
105typedef struct _agp_unbind {
106 int key; /* tag of allocation */
107 __u32 priority; /* priority for paging out */
108} agp_unbind;
109
110
111#endif /* _AGP_H */