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 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 58 struct agp_version { 59 __u16 major; 60 __u16 minor; 61 }; 62 63 typedef 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 74 typedef 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 */ 81 typedef 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 87 typedef 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 93 typedef 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; 102 103 typedef struct _agp_bind { 104 int key; /* tag of allocation */ 105 off_t pg_start; /* starting page to populate */ 106 } agp_bind; 107 108 typedef struct _agp_unbind { 109 int key; /* tag of allocation */ 110 __u32 priority; /* priority for paging out */ 111 } agp_unbind; 112 113 #else /* __KERNEL__ */ 114 #include <linux/mutex.h> 115 116 #define AGPGART_MINOR 175 117 118 struct 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 }; 128 129 struct 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 */ 136 struct 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 }; 141 142 struct agp_segment_priv { 143 off_t pg_start; 144 size_t pg_count; 145 pgprot_t prot; 146 }; 147 148 struct agp_region { 149 pid_t pid; /* pid of process */ 150 size_t seg_count; /* number of segments */ 151 struct agp_segment *seg_list; 152 }; 153 154 struct 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 }; 163 164 struct agp_bind { 165 int key; /* tag of allocation */ 166 off_t pg_start; /* starting page to populate */ 167 }; 168 169 struct agp_unbind { 170 int key; /* tag of allocation */ 171 u32 priority; /* priority for paging out */ 172 }; 173 174 struct 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 }; 181 182 struct 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 4 196 197 struct 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 }; 203 204 struct agp_front_data { 205 struct mutex agp_mutex; 206 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 */ 216