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__ */ 114 115 #define AGPGART_MINOR 175 116 117 struct agp_info { 118 struct agp_version version; /* version of the driver */ 119 u32 bridge_id; /* bridge vendor/device */ 120 u32 agp_mode; /* mode info of bridge */ 121 unsigned long aper_base;/* base of aperture */ 122 size_t aper_size; /* size of aperture */ 123 size_t pg_total; /* max pages (swap + system) */ 124 size_t pg_system; /* max pages (system) */ 125 size_t pg_used; /* current pages used */ 126 }; 127 128 struct agp_setup { 129 u32 agp_mode; /* mode info of bridge */ 130 }; 131 132 /* 133 * The "prot" down below needs still a "sleep" flag somehow ... 134 */ 135 struct agp_segment { 136 off_t pg_start; /* starting page to populate */ 137 size_t pg_count; /* number of pages */ 138 int prot; /* prot flags for mmap */ 139 }; 140 141 struct agp_segment_priv { 142 off_t pg_start; 143 size_t pg_count; 144 pgprot_t prot; 145 }; 146 147 struct agp_region { 148 pid_t pid; /* pid of process */ 149 size_t seg_count; /* number of segments */ 150 struct agp_segment *seg_list; 151 }; 152 153 struct agp_allocate { 154 int key; /* tag of allocation */ 155 size_t pg_count; /* number of pages */ 156 u32 type; /* 0 == normal, other devspec */ 157 u32 physical; /* device specific (some devices 158 * need a phys address of the 159 * actual page behind the gatt 160 * table) */ 161 }; 162 163 struct agp_bind { 164 int key; /* tag of allocation */ 165 off_t pg_start; /* starting page to populate */ 166 }; 167 168 struct agp_unbind { 169 int key; /* tag of allocation */ 170 u32 priority; /* priority for paging out */ 171 }; 172 173 struct agp_client { 174 struct agp_client *next; 175 struct agp_client *prev; 176 pid_t pid; 177 int num_segments; 178 struct agp_segment_priv **segments; 179 }; 180 181 struct agp_controller { 182 struct agp_controller *next; 183 struct agp_controller *prev; 184 pid_t pid; 185 int num_clients; 186 struct agp_memory *pool; 187 struct agp_client *clients; 188 }; 189 190 #define AGP_FF_ALLOW_CLIENT 0 191 #define AGP_FF_ALLOW_CONTROLLER 1 192 #define AGP_FF_IS_CLIENT 2 193 #define AGP_FF_IS_CONTROLLER 3 194 #define AGP_FF_IS_VALID 4 195 196 struct agp_file_private { 197 struct agp_file_private *next; 198 struct agp_file_private *prev; 199 pid_t my_pid; 200 long access_flags; /* long req'd for set_bit --RR */ 201 }; 202 203 struct agp_front_data { 204 struct semaphore agp_mutex; 205 struct agp_controller *current_controller; 206 struct agp_controller *controllers; 207 struct agp_file_private *file_priv_list; 208 u8 used_by_controller; 209 u8 backend_acquired; 210 }; 211 212 #endif /* __KERNEL__ */ 213 214 #endif /* _AGP_H */ 215