131 lines
3.8 KiB
C
131 lines
3.8 KiB
C
/*
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* AGPGART module version 0.99
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* Copyright (C) 1999 Jeff Hartmann
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* Copyright (C) 1999 Precision Insight, Inc.
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* Copyright (C) 1999 Xi Graphics, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* JEFF HARTMANN, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#ifndef _AGP_H
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#define _AGP_H 1
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#include <linux/mutex.h>
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#include <linux/agp_backend.h>
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#include <uapi/linux/agpgart.h>
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#define AGPGART_MINOR 175
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struct agp_info {
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struct agp_version version; /* version of the driver */
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u32 bridge_id; /* bridge vendor/device */
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u32 agp_mode; /* mode info of bridge */
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unsigned long aper_base;/* base of aperture */
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size_t aper_size; /* size of aperture */
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size_t pg_total; /* max pages (swap + system) */
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size_t pg_system; /* max pages (system) */
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size_t pg_used; /* current pages used */
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};
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struct agp_setup {
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u32 agp_mode; /* mode info of bridge */
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};
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/*
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* The "prot" down below needs still a "sleep" flag somehow ...
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*/
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struct agp_segment {
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off_t pg_start; /* starting page to populate */
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size_t pg_count; /* number of pages */
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int prot; /* prot flags for mmap */
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};
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struct agp_segment_priv {
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off_t pg_start;
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size_t pg_count;
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pgprot_t prot;
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};
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struct agp_region {
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pid_t pid; /* pid of process */
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size_t seg_count; /* number of segments */
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struct agp_segment *seg_list;
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};
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struct agp_allocate {
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int key; /* tag of allocation */
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size_t pg_count; /* number of pages */
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u32 type; /* 0 == normal, other devspec */
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u32 physical; /* device specific (some devices
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* need a phys address of the
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* actual page behind the gatt
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* table) */
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};
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struct agp_bind {
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int key; /* tag of allocation */
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off_t pg_start; /* starting page to populate */
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};
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struct agp_unbind {
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int key; /* tag of allocation */
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u32 priority; /* priority for paging out */
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};
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struct agp_client {
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struct agp_client *next;
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struct agp_client *prev;
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pid_t pid;
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int num_segments;
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struct agp_segment_priv **segments;
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};
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struct agp_controller {
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struct agp_controller *next;
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struct agp_controller *prev;
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pid_t pid;
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int num_clients;
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struct agp_memory *pool;
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struct agp_client *clients;
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};
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#define AGP_FF_ALLOW_CLIENT 0
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#define AGP_FF_ALLOW_CONTROLLER 1
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#define AGP_FF_IS_CLIENT 2
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#define AGP_FF_IS_CONTROLLER 3
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#define AGP_FF_IS_VALID 4
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struct agp_file_private {
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struct agp_file_private *next;
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struct agp_file_private *prev;
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pid_t my_pid;
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unsigned long access_flags; /* long req'd for set_bit --RR */
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};
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struct agp_front_data {
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struct mutex agp_mutex;
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struct agp_controller *current_controller;
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struct agp_controller *controllers;
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struct agp_file_private *file_priv_list;
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bool used_by_controller;
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bool backend_acquired;
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};
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#endif /* _AGP_H */
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