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.
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:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
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.
30 #define AGPIOC_BASE 'A'
31 #define AGPIOC_INFO _IOR (AGPIOC_BASE, 0, 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, agp_setup*)
35 #define AGPIOC_RESERVE _IOW (AGPIOC_BASE, 4, agp_region*)
36 #define AGPIOC_PROTECT _IOW (AGPIOC_BASE, 5, agp_region*)
37 #define AGPIOC_ALLOCATE _IOWR(AGPIOC_BASE, 6, agp_allocate*)
38 #define AGPIOC_DEALLOCATE _IOW (AGPIOC_BASE, 7, int)
39 #define AGPIOC_BIND _IOW (AGPIOC_BASE, 8, agp_bind*)
40 #define AGPIOC_UNBIND _IOW (AGPIOC_BASE, 9, agp_unbind*)
42 #define AGP_DEVICE "/dev/agpgart"
53 #include <linux/types.h>
54 #include <asm/types.h>
56 typedef struct _agp_version
{
61 typedef struct _agp_info
{
62 agp_version version
; /* version of the driver */
63 __u32 bridge_id
; /* bridge vendor/device */
64 __u32 agp_mode
; /* mode info of bridge */
65 off_t aper_base
; /* base of aperture */
66 size_t aper_size
; /* size of aperture */
67 size_t pg_total
; /* max pages (swap + system) */
68 size_t pg_system
; /* max pages (system) */
69 size_t pg_used
; /* current pages used */
72 typedef struct _agp_setup
{
73 __u32 agp_mode
; /* mode info of bridge */
77 * The "prot" down below needs still a "sleep" flag somehow ...
79 typedef struct _agp_segment
{
80 off_t pg_start
; /* starting page to populate */
81 size_t pg_count
; /* number of pages */
82 int prot
; /* prot flags for mmap */
85 typedef struct _agp_region
{
86 pid_t pid
; /* pid of process */
87 size_t seg_count
; /* number of segments */
88 struct _agp_segment
*seg_list
;
91 typedef struct _agp_allocate
{
92 int key
; /* tag of allocation */
93 size_t pg_count
; /* number of pages */
94 __u32 type
; /* 0 == normal, other devspec */
95 __u32 physical
; /* device specific (some devices
96 * need a phys address of the
97 * actual page behind the gatt
101 typedef struct _agp_bind
{
102 int key
; /* tag of allocation */
103 off_t pg_start
; /* starting page to populate */
106 typedef struct _agp_unbind
{
107 int key
; /* tag of allocation */
108 __u32 priority
; /* priority for paging out */
111 #else /* __KERNEL__ */
113 #define AGPGART_MINOR 175
115 #define AGP_UNLOCK() up(&(agp_fe.agp_mutex));
116 #define AGP_LOCK() down(&(agp_fe.agp_mutex));
117 #define AGP_LOCK_INIT() sema_init(&(agp_fe.agp_mutex), 1)
119 #ifndef _AGP_BACKEND_H
120 typedef struct _agp_version
{
127 typedef struct _agp_info
{
128 agp_version version
; /* version of the driver */
129 u32 bridge_id
; /* bridge vendor/device */
130 u32 agp_mode
; /* mode info of bridge */
131 off_t aper_base
; /* base of aperture */
132 size_t aper_size
; /* size of aperture */
133 size_t pg_total
; /* max pages (swap + system) */
134 size_t pg_system
; /* max pages (system) */
135 size_t pg_used
; /* current pages used */
138 typedef struct _agp_setup
{
139 u32 agp_mode
; /* mode info of bridge */
143 * The "prot" down below needs still a "sleep" flag somehow ...
145 typedef struct _agp_segment
{
146 off_t pg_start
; /* starting page to populate */
147 size_t pg_count
; /* number of pages */
148 int prot
; /* prot flags for mmap */
151 typedef struct _agp_segment_priv
{
157 typedef struct _agp_region
{
158 pid_t pid
; /* pid of process */
159 size_t seg_count
; /* number of segments */
160 struct _agp_segment
*seg_list
;
163 typedef struct _agp_allocate
{
164 int key
; /* tag of allocation */
165 size_t pg_count
; /* number of pages */
166 u32 type
; /* 0 == normal, other devspec */
167 u32 physical
; /* device specific (some devices
168 * need a phys address of the
169 * actual page behind the gatt
173 typedef struct _agp_bind
{
174 int key
; /* tag of allocation */
175 off_t pg_start
; /* starting page to populate */
178 typedef struct _agp_unbind
{
179 int key
; /* tag of allocation */
180 u32 priority
; /* priority for paging out */
183 typedef struct _agp_client
{
184 struct _agp_client
*next
;
185 struct _agp_client
*prev
;
188 agp_segment_priv
**segments
;
191 typedef struct _agp_controller
{
192 struct _agp_controller
*next
;
193 struct _agp_controller
*prev
;
200 #define AGP_FF_ALLOW_CLIENT 0
201 #define AGP_FF_ALLOW_CONTROLLER 1
202 #define AGP_FF_IS_CLIENT 2
203 #define AGP_FF_IS_CONTROLLER 3
204 #define AGP_FF_IS_VALID 4
206 typedef struct _agp_file_private
{
207 struct _agp_file_private
*next
;
208 struct _agp_file_private
*prev
;
210 long access_flags
; /* long req'd for set_bit --RR */
213 struct agp_front_data
{
214 struct semaphore agp_mutex
;
215 agp_controller
*current_controller
;
216 agp_controller
*controllers
;
217 agp_file_private
*file_priv_list
;
218 u8 used_by_controller
;
222 #endif /* __KERNEL__ */