agpgart.h

  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
 56struct agp_version {
 57	__u16 major;
 58	__u16 minor;
 59};
 60
 61typedef struct _agp_info {
 62	struct agp_version version;	/* version of the driver        */
 63	__u32 bridge_id;	/* bridge vendor/device         */
 64	__u32 agp_mode;		/* mode info of bridge          */
 65	unsigned long aper_base;/* base of aperture             */
 66	__kernel_size_t aper_size;	/* size of aperture             */
 67	__kernel_size_t pg_total;	/* max pages (swap + system)    */
 68	__kernel_size_t pg_system;	/* max pages (system)           */
 69	__kernel_size_t pg_used;	/* current pages used           */
 70} agp_info;
 71
 72typedef struct _agp_setup {
 73	__u32 agp_mode;		/* mode info of bridge          */
 74} agp_setup;
 75
 76/*
 77 * The "prot" down below needs still a "sleep" flag somehow ...
 78 */
 79typedef struct _agp_segment {
 80	__kernel_off_t pg_start;	/* starting page to populate    */
 81	__kernel_size_t pg_count;	/* number of pages              */
 82	int prot;			/* prot flags for mmap          */
 83} agp_segment;
 84
 85typedef struct _agp_region {
 86	__kernel_pid_t pid;		/* pid of process       */
 87	__kernel_size_t seg_count;	/* number of segments   */
 88	struct _agp_segment *seg_list;
 89} agp_region;
 90
 91typedef struct _agp_allocate {
 92	int key;		/* tag of allocation            */
 93	__kernel_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    
 98				 * table)                        */
 99} agp_allocate;
100
101typedef struct _agp_bind {
102	int key;		/* tag of allocation            */
103	__kernel_off_t pg_start;/* starting page to populate    */
104} agp_bind;
105
106typedef struct _agp_unbind {
107	int key;		/* tag of allocation            */
108	__u32 priority;		/* priority for paging out      */
109} agp_unbind;
110
111#endif				/* __KERNEL__ */
112
113#endif /* _UAPI_AGP_H */