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 _UAPI_AGP_H
28 #define _UAPI_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 #ifndef __KERNEL__
54 #include <linux/types.h>
55 #include <stdlib.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 	__kernel_off_t pg_start;	/* starting page to populate    */
82 	__kernel_size_t pg_count;	/* number of pages              */
83 	int prot;			/* prot flags for mmap          */
84 } agp_segment;
85 
86 typedef struct _agp_region {
87 	__kernel_pid_t pid;		/* pid of process       */
88 	__kernel_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 	__kernel_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 	__kernel_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 #endif				/* __KERNEL__ */
113 
114 #endif /* _UAPI_AGP_H */
115