Current File : //usr/src/linux-headers-5.15.0-125-generic/include/linux/agpgart.h
/*
* 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>
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 */
Mini Shell