Update the agp(4) code to the latest one from FreeBSD HEAD. This brings in
[dragonfly.git] / sys / dev / agp / agppriv.h
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1/*-
2 * Copyright (c) 2000 Doug Rabson
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
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26 * $FreeBSD: src/sys/pci/agppriv.h,v 1.6 2007/07/13 16:28:12 anholt Exp $
27 * $DragonFly: src/sys/dev/agp/agppriv.h,v 1.6 2007/09/12 08:31:43 hasso Exp $
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28 */
29
30#ifndef _PCI_AGPPRIV_H_
31#define _PCI_AGPPRIV_H_
32
33/*
34 * This file *must not* be included by code outside the agp driver itself.
35 */
36
37#include <sys/agpio.h>
1f2de5d4 38#include "agpvar.h"
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39
40#define AGP_DEBUGxx
41
42#ifdef AGP_DEBUG
43#define AGP_DPF(x...) do { \
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44 printf("agp: "); \
45 printf(##x); \
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46} while (0)
47#else
48#define AGP_DPF(x...) do {} while (0)
49#endif
50
51#include "agp_if.h"
52
53/*
54 * Data structure to describe an AGP memory allocation.
55 */
56TAILQ_HEAD(agp_memory_list, agp_memory);
57struct agp_memory {
58 TAILQ_ENTRY(agp_memory) am_link; /* wiring for the tailq */
59 int am_id; /* unique id for block */
60 vm_size_t am_size; /* number of bytes allocated */
61 int am_type; /* chipset specific type */
62 struct vm_object *am_obj; /* VM object owning pages */
63 vm_offset_t am_physical; /* bogus hack for i810 */
64 vm_offset_t am_offset; /* page offset if bound */
65 int am_is_bound; /* non-zero if bound */
66};
67
68/*
69 * All chipset drivers must have this at the start of their softc.
70 */
71struct agp_softc {
72 struct resource *as_aperture; /* location of aperture */
fdc3c5be 73 int as_aperture_rid;
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74 u_int32_t as_maxmem; /* allocation upper bound */
75 u_int32_t as_allocated; /* amount allocated */
76 enum agp_acquire_state as_state;
77 struct agp_memory_list as_memory; /* list of allocated memory */
78 int as_nextid; /* next memory block id */
79 int as_isopen; /* user device is open */
fdc3c5be 80 struct cdev *as_devnode; /* from make_dev */
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81 struct lock as_lock; /* lock for access to GATT */
82};
83
84struct agp_gatt {
85 u_int32_t ag_entries;
86 u_int32_t *ag_virtual;
87 vm_offset_t ag_physical;
88};
89
90void agp_flush_cache(void);
91u_int8_t agp_find_caps(device_t dev);
92struct agp_gatt *agp_alloc_gatt(device_t dev);
fdc3c5be 93void agp_set_aperture_resource(device_t dev, int rid);
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94void agp_free_gatt(struct agp_gatt *gatt);
95int agp_generic_attach(device_t dev);
96int agp_generic_detach(device_t dev);
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97int agp_generic_get_aperture(device_t dev);
98int agp_generic_set_aperture(device_t dev,
99 u_int32_t aperture);
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100int agp_generic_enable(device_t dev, u_int32_t mode);
101struct agp_memory *agp_generic_alloc_memory(device_t dev, int type,
102 vm_size_t size);
103int agp_generic_free_memory(device_t dev,
104 struct agp_memory *mem);
105int agp_generic_bind_memory(device_t dev,
106 struct agp_memory *mem,
107 vm_offset_t offset);
108int agp_generic_unbind_memory(device_t dev,
109 struct agp_memory *mem);
110
111#endif /* !_PCI_AGPPRIV_H_ */