Initial import from FreeBSD RELENG_4:
[dragonfly.git] / sys / dev / agp / agppriv.h
CommitLineData
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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 *
26 * $FreeBSD: src/sys/pci/agppriv.h,v 1.3.2.1 2000/07/19 09:48:04 ru Exp $
27 */
28
29#ifndef _PCI_AGPPRIV_H_
30#define _PCI_AGPPRIV_H_
31
32/*
33 * This file *must not* be included by code outside the agp driver itself.
34 */
35
36#include <sys/agpio.h>
37#include <pci/agpvar.h>
38
39#define AGP_DEBUGxx
40
41#ifdef AGP_DEBUG
42#define AGP_DPF(x...) do { \
43 printf("agp: "); \
44 printf(##x); \
45} while (0)
46#else
47#define AGP_DPF(x...) do {} while (0)
48#endif
49
50#include "agp_if.h"
51
52/*
53 * Data structure to describe an AGP memory allocation.
54 */
55TAILQ_HEAD(agp_memory_list, agp_memory);
56struct agp_memory {
57 TAILQ_ENTRY(agp_memory) am_link; /* wiring for the tailq */
58 int am_id; /* unique id for block */
59 vm_size_t am_size; /* number of bytes allocated */
60 int am_type; /* chipset specific type */
61 struct vm_object *am_obj; /* VM object owning pages */
62 vm_offset_t am_physical; /* bogus hack for i810 */
63 vm_offset_t am_offset; /* page offset if bound */
64 int am_is_bound; /* non-zero if bound */
65};
66
67/*
68 * All chipset drivers must have this at the start of their softc.
69 */
70struct agp_softc {
71 struct resource *as_aperture; /* location of aperture */
72 u_int32_t as_maxmem; /* allocation upper bound */
73 u_int32_t as_allocated; /* amount allocated */
74 enum agp_acquire_state as_state;
75 struct agp_memory_list as_memory; /* list of allocated memory */
76 int as_nextid; /* next memory block id */
77 int as_isopen; /* user device is open */
78 dev_t as_devnode; /* from make_dev */
79 struct lock as_lock; /* lock for access to GATT */
80};
81
82struct agp_gatt {
83 u_int32_t ag_entries;
84 u_int32_t *ag_virtual;
85 vm_offset_t ag_physical;
86};
87
88void agp_flush_cache(void);
89u_int8_t agp_find_caps(device_t dev);
90struct agp_gatt *agp_alloc_gatt(device_t dev);
91void agp_free_gatt(struct agp_gatt *gatt);
92int agp_generic_attach(device_t dev);
93int agp_generic_detach(device_t dev);
94int agp_generic_enable(device_t dev, u_int32_t mode);
95struct agp_memory *agp_generic_alloc_memory(device_t dev, int type,
96 vm_size_t size);
97int agp_generic_free_memory(device_t dev,
98 struct agp_memory *mem);
99int agp_generic_bind_memory(device_t dev,
100 struct agp_memory *mem,
101 vm_offset_t offset);
102int agp_generic_unbind_memory(device_t dev,
103 struct agp_memory *mem);
104
105#endif /* !_PCI_AGPPRIV_H_ */