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1/*2 * AGPGART module version 0.993 * Copyright (C) 1999 Jeff Hartmann4 * Copyright (C) 1999 Precision Insight, Inc.5 * Copyright (C) 1999 Xi Graphics, Inc.6 *7 * Permission is hereby granted, free of charge, to any person obtaining a8 * copy of this software and associated documentation files (the "Software"),9 * to deal in the Software without restriction, including without limitation10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,11 * and/or sell copies of the Software, and to permit persons to whom the12 * Software is furnished to do so, subject to the following conditions:13 *14 * The above copyright notice and this permission notice shall be included15 * in all copies or substantial portions of the Software.16 *17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL20 * JEFF HARTMANN, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM, 21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE 23 * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.24 *25 */26#ifndef _AGP_H27#define _AGP_H 128 29#include <linux/mutex.h>30#include <linux/agp_backend.h>31#include <uapi/linux/agpgart.h>32 33struct agp_info {34 struct agp_version version; /* version of the driver */35 u32 bridge_id; /* bridge vendor/device */36 u32 agp_mode; /* mode info of bridge */37 unsigned long aper_base;/* base of aperture */38 size_t aper_size; /* size of aperture */39 size_t pg_total; /* max pages (swap + system) */40 size_t pg_system; /* max pages (system) */41 size_t pg_used; /* current pages used */42};43 44struct agp_setup {45 u32 agp_mode; /* mode info of bridge */46};47 48/*49 * The "prot" down below needs still a "sleep" flag somehow ...50 */51struct agp_segment {52 off_t pg_start; /* starting page to populate */53 size_t pg_count; /* number of pages */54 int prot; /* prot flags for mmap */55};56 57struct agp_segment_priv {58 off_t pg_start;59 size_t pg_count;60 pgprot_t prot;61};62 63struct agp_region {64 pid_t pid; /* pid of process */65 size_t seg_count; /* number of segments */66 struct agp_segment *seg_list;67};68 69struct agp_allocate {70 int key; /* tag of allocation */71 size_t pg_count; /* number of pages */72 u32 type; /* 0 == normal, other devspec */73 u32 physical; /* device specific (some devices 74 * need a phys address of the 75 * actual page behind the gatt 76 * table) */77};78 79struct agp_bind {80 int key; /* tag of allocation */81 off_t pg_start; /* starting page to populate */82};83 84struct agp_unbind {85 int key; /* tag of allocation */86 u32 priority; /* priority for paging out */87};88 89struct agp_client {90 struct agp_client *next;91 struct agp_client *prev;92 pid_t pid;93 int num_segments;94 struct agp_segment_priv **segments;95};96 97struct agp_controller {98 struct agp_controller *next;99 struct agp_controller *prev;100 pid_t pid;101 int num_clients;102 struct agp_memory *pool;103 struct agp_client *clients;104};105 106#define AGP_FF_ALLOW_CLIENT 0107#define AGP_FF_ALLOW_CONTROLLER 1108#define AGP_FF_IS_CLIENT 2109#define AGP_FF_IS_CONTROLLER 3110#define AGP_FF_IS_VALID 4111 112struct agp_file_private {113 struct agp_file_private *next;114 struct agp_file_private *prev;115 pid_t my_pid;116 unsigned long access_flags; /* long req'd for set_bit --RR */117};118 119struct agp_front_data {120 struct mutex agp_mutex;121 struct agp_controller *current_controller;122 struct agp_controller *controllers;123 struct agp_file_private *file_priv_list;124 bool used_by_controller;125 bool backend_acquired;126};127 128#endif /* _AGP_H */129