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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, agp_info*)
#define AGPIOC_ACQUIRE _IO (AGPIOC_BASE, 1)
#define AGPIOC_RELEASE _IO (AGPIOC_BASE, 2)
#define AGPIOC_SETUP _IOW (AGPIOC_BASE, 3, agp_setup*)
#define AGPIOC_RESERVE _IOW (AGPIOC_BASE, 4, agp_region*)
#define AGPIOC_PROTECT _IOW (AGPIOC_BASE, 5, agp_region*)
#define AGPIOC_ALLOCATE _IOWR(AGPIOC_BASE, 6, agp_allocate*)
#define AGPIOC_DEALLOCATE _IOW (AGPIOC_BASE, 7, int)
#define AGPIOC_BIND _IOW (AGPIOC_BASE, 8, agp_bind*)
#define AGPIOC_UNBIND _IOW (AGPIOC_BASE, 9, 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>
typedef struct _agp_version {
__u16 major;
__u16 minor;
} agp_version;
typedef struct _agp_info {
agp_version version; /* version of the driver */
__u32 bridge_id; /* bridge vendor/device */
__u32 agp_mode; /* mode info of bridge */
off_t 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__ */
#define AGPGART_MINOR 175
#define AGP_UNLOCK() up(&(agp_fe.agp_mutex));
#define AGP_LOCK() down(&(agp_fe.agp_mutex));
#define AGP_LOCK_INIT() sema_init(&(agp_fe.agp_mutex), 1)
#ifndef _AGP_BACKEND_H
typedef struct _agp_version {
u16 major;
u16 minor;
} agp_version;
#endif
typedef struct _agp_info {
agp_version version; /* version of the driver */
u32 bridge_id; /* bridge vendor/device */
u32 agp_mode; /* mode info of bridge */
off_t 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_segment_priv {
off_t pg_start;
size_t pg_count;
pgprot_t prot;
} agp_segment_priv;
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;
typedef struct _agp_client {
struct _agp_client *next;
struct _agp_client *prev;
pid_t pid;
int num_segments;
agp_segment_priv **segments;
} agp_client;
typedef struct _agp_controller {
struct _agp_controller *next;
struct _agp_controller *prev;
pid_t pid;
int num_clients;
agp_memory *pool;
agp_client *clients;
} agp_controller;
#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
typedef struct _agp_file_private {
struct _agp_file_private *next;
struct _agp_file_private *prev;
pid_t my_pid;
long access_flags; /* long req'd for set_bit --RR */
} agp_file_private;
struct agp_front_data {
struct semaphore agp_mutex;
agp_controller *current_controller;
agp_controller *controllers;
agp_file_private *file_priv_list;
u8 used_by_controller;
u8 backend_acquired;
};
#endif /* __KERNEL__ */
#endif /* _AGP_H */
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