FreeBSD/Linux Kernel Cross Reference
sys/dev/agp/agppriv.h
1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2000 Doug Rabson
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD: releng/12.0/sys/dev/agp/agppriv.h 326255 2017-11-27 14:52:40Z pfg $
29 */
30
31 #ifndef _PCI_AGPPRIV_H_
32 #define _PCI_AGPPRIV_H_
33
34 /*
35 * This file *must not* be included by code outside the agp driver itself.
36 */
37
38 #include <sys/agpio.h>
39 #include <dev/agp/agpvar.h>
40
41 #ifdef AGP_DEBUG
42 #define AGP_DPF(fmt, ...) do { \
43 printf("agp: " fmt, ##__VA_ARGS__); \
44 } while (0)
45 #else
46 #define AGP_DPF(fmt, ...) do {} while (0)
47 #endif
48
49 #include "agp_if.h"
50
51 /*
52 * Data structure to describe an AGP memory allocation.
53 */
54 TAILQ_HEAD(agp_memory_list, agp_memory);
55 struct agp_memory {
56 TAILQ_ENTRY(agp_memory) am_link; /* wiring for the tailq */
57 int am_id; /* unique id for block */
58 vm_size_t am_size; /* number of bytes allocated */
59 int am_type; /* chipset specific type */
60 struct vm_object *am_obj; /* VM object owning pages */
61 vm_offset_t am_physical; /* bogus hack for i810 */
62 vm_offset_t am_offset; /* page offset if bound */
63 int am_is_bound; /* non-zero if bound */
64 };
65
66 /*
67 * All chipset drivers must have this at the start of their softc.
68 */
69 struct agp_softc {
70 struct resource *as_aperture; /* location of aperture */
71 int as_aperture_rid;
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 struct cdev *as_devnode; /* from make_dev */
79 struct mtx as_lock; /* lock for access to GATT */
80 };
81
82 struct agp_gatt {
83 u_int32_t ag_entries;
84 u_int32_t *ag_virtual;
85 vm_offset_t ag_physical;
86 };
87
88 u_int8_t agp_find_caps(device_t dev);
89 struct agp_gatt *agp_alloc_gatt(device_t dev);
90 void agp_set_aperture_resource(device_t dev, int rid);
91 void agp_free_cdev(device_t dev);
92 void agp_free_gatt(struct agp_gatt *gatt);
93 void agp_free_res(device_t dev);
94 int agp_generic_attach(device_t dev);
95 int agp_generic_detach(device_t dev);
96 u_int32_t agp_generic_get_aperture(device_t dev);
97 int agp_generic_set_aperture(device_t dev,
98 u_int32_t aperture);
99 int agp_generic_enable(device_t dev, u_int32_t mode);
100 struct agp_memory *agp_generic_alloc_memory(device_t dev, int type,
101 vm_size_t size);
102 int agp_generic_free_memory(device_t dev,
103 struct agp_memory *mem);
104 int agp_generic_bind_memory(device_t dev,
105 struct agp_memory *mem,
106 vm_offset_t offset);
107 int agp_generic_unbind_memory(device_t dev,
108 struct agp_memory *mem);
109
110 #endif /* !_PCI_AGPPRIV_H_ */
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