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 #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 42 #define AGP_DEVICE "/dev/agpgart" 43 44 #ifndef TRUE 45 #define TRUE 1 46 #endif 47 48 #ifndef FALSE 49 #define FALSE 0 50 #endif 51 52 #include <linux/types.h> 53 #include <asm/types.h> 54 55 struct agp_version { 56 __u16 major; 57 __u16 minor; 58 }; 59 60 typedef 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 size_t aper_size; /* size of aperture */ 66 size_t pg_total; /* max pages (swap + system) */ 67 size_t pg_system; /* max pages (system) */ 68 size_t pg_used; /* current pages used */ 69 } agp_info; 70 71 typedef 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 */ 78 typedef struct _agp_segment { 79 off_t pg_start; /* starting page to populate */ 80 size_t pg_count; /* number of pages */ 81 int prot; /* prot flags for mmap */ 82 } agp_segment; 83 84 typedef struct _agp_region { 85 pid_t pid; /* pid of process */ 86 size_t seg_count; /* number of segments */ 87 struct _agp_segment *seg_list; 88 } agp_region; 89 90 typedef struct _agp_allocate { 91 int key; /* tag of allocation */ 92 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; 99 100 typedef struct _agp_bind { 101 int key; /* tag of allocation */ 102 off_t pg_start; /* starting page to populate */ 103 } agp_bind; 104 105 typedef 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 */ 112
