131 lines
3.8 KiB
C
Executable File
131 lines
3.8 KiB
C
Executable File
/*
|
|
* 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
|
|
|
|
#include <linux/mutex.h>
|
|
#include <linux/agp_backend.h>
|
|
#include <uapi/linux/agpgart.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;
|
|
bool used_by_controller;
|
|
bool backend_acquired;
|
|
};
|
|
|
|
#endif /* _AGP_H */
|