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/*

 * AGPGART module version 0.99

 * Copyright (C) 1999 Jeff Hartmann

 * Copyright (C) 1999 Precision Insight, Inc.

 * Copyright (C) 1999 Xi Graphics, Inc.

 *

 * Permission is hereby granted, free of charge, to any person obtaining a

 * copy of this software and associated documentation files (the "Software"),

 * to deal in the Software without restriction, including without limitation

 * the rights to use, copy, modify, merge, publish, distribute, sublicense,

 * and/or sell copies of the Software, and to permit persons to whom the

 * Software is furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included

 * in all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

 * JEFF HARTMANN, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM,

 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR

 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE

 * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

 *

 */

#ifndef _AGP_H

#define _AGP_H 1

#define AGPIOC_BASE       'A'

#define AGPIOC_INFO       _IOR (AGPIOC_BASE, 0, struct agp_info*)

#define AGPIOC_ACQUIRE    _IO  (AGPIOC_BASE, 1)

#define AGPIOC_RELEASE    _IO  (AGPIOC_BASE, 2)

#define AGPIOC_SETUP      _IOW (AGPIOC_BASE, 3, struct agp_setup*)

#define AGPIOC_RESERVE    _IOW (AGPIOC_BASE, 4, struct agp_region*)

#define AGPIOC_PROTECT    _IOW (AGPIOC_BASE, 5, struct agp_region*)

#define AGPIOC_ALLOCATE   _IOWR(AGPIOC_BASE, 6, struct agp_allocate*)

#define AGPIOC_DEALLOCATE _IOW (AGPIOC_BASE, 7, int)

#define AGPIOC_BIND       _IOW (AGPIOC_BASE, 8, struct agp_bind*)

#define AGPIOC_UNBIND     _IOW (AGPIOC_BASE, 9, struct agp_unbind*)

#define AGP_DEVICE      "/dev/agpgart"

#ifndef TRUE

#define TRUE 1

#endif

#ifndef FALSE

#define FALSE 0

#endif

#ifndef __KERNEL__

#include <linux/types.h>

#include <asm/types.h>

struct agp_version {

        __u16 major;

        __u16 minor;

};

typedef struct _agp_info {

        struct agp_version version;     /* version of the driver        */

        __u32 bridge_id;        /* bridge vendor/device         */

        __u32 agp_mode;         /* mode info of bridge          */

        unsigned long aper_base;/* base of aperture             */

        size_t aper_size;       /* size of aperture             */

        size_t pg_total;        /* max pages (swap + system)    */

        size_t pg_system;       /* max pages (system)           */

        size_t pg_used;         /* current pages used           */

} agp_info;

typedef struct _agp_setup {

        __u32 agp_mode;         /* mode info of bridge          */

} agp_setup;

/*

 * The "prot" down below needs still a "sleep" flag somehow ...

 */

typedef struct _agp_segment {

        off_t pg_start;         /* starting page to populate    */

        size_t pg_count;        /* number of pages              */

        int prot;               /* prot flags for mmap          */

} agp_segment;

typedef struct _agp_region {

        pid_t pid;              /* pid of process               */

        size_t seg_count;       /* number of segments           */

        struct _agp_segment *seg_list;

} agp_region;

typedef struct _agp_allocate {

        int key;                /* tag of allocation            */

        size_t pg_count;        /* number of pages              */

        __u32 type;             /* 0 == normal, other devspec   */

        __u32 physical;         /* device specific (some devices

                                 * need a phys address of the

                                 * actual page behind the gatt

                                 * table)                        */

} agp_allocate;

typedef struct _agp_bind {

        int key;                /* tag of allocation            */

        off_t pg_start;         /* starting page to populate    */

} agp_bind;

typedef struct _agp_unbind {

        int key;                /* tag of allocation            */

        __u32 priority;         /* priority for paging out      */

} agp_unbind;

#else                           /* __KERNEL__ */

#include <linux/mutex.h>

#include <linux/agp_backend.h>

#define AGPGART_MINOR 175

struct agp_info {

        struct agp_version version;     /* version of the driver        */

        u32 bridge_id;          /* bridge vendor/device         */

        u32 agp_mode;           /* mode info of bridge          */

        unsigned long aper_base;/* base of aperture             */

        size_t aper_size;       /* size of aperture             */

        size_t pg_total;        /* max pages (swap + system)    */

        size_t pg_system;       /* max pages (system)           */

        size_t pg_used;         /* current pages used           */

};

struct agp_setup {

        u32 agp_mode;           /* mode info of bridge          */

};

/*

 * The "prot" down below needs still a "sleep" flag somehow ...

 */

struct agp_segment {

        off_t pg_start;         /* starting page to populate    */

        size_t pg_count;        /* number of pages              */

        int prot;               /* prot flags for mmap          */

};

struct agp_segment_priv {

        off_t pg_start;

        size_t pg_count;

        pgprot_t prot;

};

struct agp_region {

        pid_t pid;              /* pid of process               */

        size_t seg_count;       /* number of segments           */

        struct agp_segment *seg_list;

};

struct agp_allocate {

        int key;                /* tag of allocation            */

        size_t pg_count;        /* number of pages              */

        u32 type;               /* 0 == normal, other devspec   */

        u32 physical;           /* device specific (some devices

                                 * need a phys address of the

                                 * actual page behind the gatt

                                 * table)                        */

};

struct agp_bind {

        int key;                /* tag of allocation            */

        off_t pg_start;         /* starting page to populate    */

};

struct agp_unbind {

        int key;                /* tag of allocation            */

        u32 priority;           /* priority for paging out      */

};

struct agp_client {

        struct agp_client *next;

        struct agp_client *prev;

        pid_t pid;

        int num_segments;

        struct agp_segment_priv **segments;

};

struct agp_controller {

        struct agp_controller *next;

        struct agp_controller *prev;

        pid_t pid;

        int num_clients;

        struct agp_memory *pool;

        struct agp_client *clients;

};

#define AGP_FF_ALLOW_CLIENT             0

#define AGP_FF_ALLOW_CONTROLLER         1

#define AGP_FF_IS_CLIENT                2

#define AGP_FF_IS_CONTROLLER            3

#define AGP_FF_IS_VALID                 4

struct agp_file_private {

        struct agp_file_private *next;

        struct agp_file_private *prev;

        pid_t my_pid;

        unsigned long access_flags;     /* long req'd for set_bit --RR */

};

struct agp_front_data {

        struct mutex agp_mutex;

        struct agp_controller *current_controller;

        struct agp_controller *controllers;

        struct agp_file_private *file_priv_list;

        u8 used_by_controller;

        u8 backend_acquired;

};

#endif                          /* __KERNEL__ */

#endif                          /* _AGP_H */