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/*
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 * AGPGART module version 0.99
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 * Copyright (C) 1999 Jeff Hartmann
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 * Copyright (C) 1999 Precision Insight, Inc.
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 * Copyright (C) 1999 Xi Graphics, Inc.
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a
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 * copy of this software and associated documentation files (the "Software"),
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 * to deal in the Software without restriction, including without limitation
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 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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 * and/or sell copies of the Software, and to permit persons to whom the
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 * Software is furnished to do so, subject to the following conditions:
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 *
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 * The above copyright notice and this permission notice shall be included
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 * in all copies or substantial portions of the Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
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 * JEFF HARTMANN, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM,
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 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
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 * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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 *
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 */
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#ifndef _AGP_H
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#define _AGP_H 1
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#include <linux/agp_backend.h>
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#define AGPIOC_BASE       'A'
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#define AGPIOC_INFO       _IOR (AGPIOC_BASE, 0, struct agp_info*)
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#define AGPIOC_ACQUIRE    _IO  (AGPIOC_BASE, 1)
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#define AGPIOC_RELEASE    _IO  (AGPIOC_BASE, 2)
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#define AGPIOC_SETUP      _IOW (AGPIOC_BASE, 3, struct agp_setup*)
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#define AGPIOC_RESERVE    _IOW (AGPIOC_BASE, 4, struct agp_region*)
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#define AGPIOC_PROTECT    _IOW (AGPIOC_BASE, 5, struct agp_region*)
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#define AGPIOC_ALLOCATE   _IOWR(AGPIOC_BASE, 6, struct agp_allocate*)
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#define AGPIOC_DEALLOCATE _IOW (AGPIOC_BASE, 7, int)
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#define AGPIOC_BIND       _IOW (AGPIOC_BASE, 8, struct agp_bind*)
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#define AGPIOC_UNBIND     _IOW (AGPIOC_BASE, 9, struct agp_unbind*)
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#define AGP_DEVICE      "/dev/agpgart"
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#ifndef TRUE
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#define TRUE 1
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#endif
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#ifndef FALSE
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#define FALSE 0
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#endif
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#ifndef __KERNEL__
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#include <linux/types.h>
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#include <asm/types.h>
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struct agp_version {
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        __u16 major;
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        __u16 minor;
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};
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typedef struct _agp_info {
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        struct agp_version version;     /* version of the driver        */
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        __u32 bridge_id;        /* bridge vendor/device         */
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        __u32 agp_mode;         /* mode info of bridge          */
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        off_t aper_base;        /* base of aperture             */
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        size_t aper_size;       /* size of aperture             */
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        size_t pg_total;        /* max pages (swap + system)    */
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        size_t pg_system;       /* max pages (system)           */
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        size_t pg_used;         /* current pages used           */
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} agp_info;
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typedef struct _agp_setup {
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        __u32 agp_mode;         /* mode info of bridge          */
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} agp_setup;
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/*
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 * The "prot" down below needs still a "sleep" flag somehow ...
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 */
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typedef struct _agp_segment {
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        off_t pg_start;         /* starting page to populate    */
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        size_t pg_count;        /* number of pages              */
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        int prot;               /* prot flags for mmap          */
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} agp_segment;
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typedef struct _agp_region {
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        pid_t pid;              /* pid of process               */
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        size_t seg_count;       /* number of segments           */
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        struct _agp_segment *seg_list;
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} agp_region;
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typedef struct _agp_allocate {
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        int key;                /* tag of allocation            */
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        size_t pg_count;        /* number of pages              */
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        __u32 type;             /* 0 == normal, other devspec   */
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        __u32 physical;         /* device specific (some devices  
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                                 * need a phys address of the    
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                                 * actual page behind the gatt    
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                                 * table)                        */
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} agp_allocate;
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typedef struct _agp_bind {
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        int key;                /* tag of allocation            */
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        off_t pg_start;         /* starting page to populate    */
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} agp_bind;
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typedef struct _agp_unbind {
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        int key;                /* tag of allocation            */
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        __u32 priority;         /* priority for paging out      */
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} agp_unbind;
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#else                           /* __KERNEL__ */
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#define AGPGART_MINOR 175
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struct agp_info {
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        struct agp_version version;     /* version of the driver        */
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        u32 bridge_id;          /* bridge vendor/device         */
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        u32 agp_mode;           /* mode info of bridge          */
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        off_t aper_base;        /* base of aperture             */
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        size_t aper_size;       /* size of aperture             */
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        size_t pg_total;        /* max pages (swap + system)    */
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        size_t pg_system;       /* max pages (system)           */
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        size_t pg_used;         /* current pages used           */
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};
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struct agp_setup {
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        u32 agp_mode;           /* mode info of bridge          */
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};
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/*
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 * The "prot" down below needs still a "sleep" flag somehow ...
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 */
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struct agp_segment {
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        off_t pg_start;         /* starting page to populate    */
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        size_t pg_count;        /* number of pages              */
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        int prot;               /* prot flags for mmap          */
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};
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struct agp_segment_priv {
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        off_t pg_start;
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        size_t pg_count;
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        pgprot_t prot;
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};
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struct agp_region {
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        pid_t pid;              /* pid of process               */
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        size_t seg_count;       /* number of segments           */
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        struct agp_segment *seg_list;
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};
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struct agp_allocate {
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        int key;                /* tag of allocation            */
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        size_t pg_count;        /* number of pages              */
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        u32 type;               /* 0 == normal, other devspec   */
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        u32 physical;           /* device specific (some devices  
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                                 * need a phys address of the    
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                                 * actual page behind the gatt    
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                                 * table)                        */
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};
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struct agp_bind {
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        int key;                /* tag of allocation            */
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        off_t pg_start;         /* starting page to populate    */
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};
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struct agp_unbind {
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        int key;                /* tag of allocation            */
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        u32 priority;           /* priority for paging out      */
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};
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struct agp_client {
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        struct agp_client *next;
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        struct agp_client *prev;
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        pid_t pid;
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        int num_segments;
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        struct agp_segment_priv **segments;
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};
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struct agp_controller {
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        struct agp_controller *next;
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        struct agp_controller *prev;
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        pid_t pid;
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        int num_clients;
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        struct agp_memory *pool;
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        struct agp_client *clients;
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};
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#define AGP_FF_ALLOW_CLIENT             0
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#define AGP_FF_ALLOW_CONTROLLER         1
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#define AGP_FF_IS_CLIENT                2
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#define AGP_FF_IS_CONTROLLER            3
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#define AGP_FF_IS_VALID                 4
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struct agp_file_private {
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        struct agp_file_private *next;
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        struct agp_file_private *prev;
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        pid_t my_pid;
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        long access_flags;      /* long req'd for set_bit --RR */
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};
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struct agp_front_data {
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        struct semaphore agp_mutex;
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        struct agp_controller *current_controller;
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        struct agp_controller *controllers;
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        struct agp_file_private *file_priv_list;
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        u8 used_by_controller;
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        u8 backend_acquired;
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};
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#endif                          /* __KERNEL__ */
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#endif                          /* _AGP_H */