FreeBSD/Linux Kernel Cross Reference
sys/pci/agppriv.h
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: releng/6.4/sys/pci/agppriv.h 173478 2007-11-08 20:50:13Z jhb $
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 */
55 TAILQ_HEAD(agp_memory_list, agp_memory);
56 struct 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 */
70 struct 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 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 void agp_flush_cache(void);
89 u_int8_t agp_find_caps(device_t dev);
90 struct agp_gatt *agp_alloc_gatt(device_t dev);
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 int agp_generic_enable(device_t dev, u_int32_t mode);
97 struct agp_memory *agp_generic_alloc_memory(device_t dev, int type,
98 vm_size_t size);
99 int agp_generic_free_memory(device_t dev,
100 struct agp_memory *mem);
101 int agp_generic_bind_memory(device_t dev,
102 struct agp_memory *mem,
103 vm_offset_t offset);
104 int agp_generic_unbind_memory(device_t dev,
105 struct agp_memory *mem);
106
107 #endif /* !_PCI_AGPPRIV_H_ */
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