1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
/*
* AGPGART backend specific includes. Not for userspace consumption.
*
* Copyright (C) 2002-2003 Dave Jones
* Copyright (C) 1999 Jeff Hartmann
* Copyright (C) 1999 Precision Insight, Inc.
* Copyright (C) 1999 Xi Graphics, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* JEFF HARTMANN, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#ifndef _AGP_BACKEND_H
#define _AGP_BACKEND_H 1
#ifdef __KERNEL__
#ifndef TRUE
#define TRUE 1
#endif
#ifndef FALSE
#define FALSE 0
#endif
enum chipset_type {
NOT_SUPPORTED,
SUPPORTED,
};
struct agp_version {
u16 major;
u16 minor;
};
struct agp_kern_info {
struct agp_version version;
struct pci_dev *device;
enum chipset_type chipset;
unsigned long mode;
off_t aper_base;
size_t aper_size;
int max_memory; /* In pages */
int current_memory;
int cant_use_aperture;
unsigned long page_mask;
struct vm_operations_struct *vm_ops;
};
/*
* The agp_memory structure has information about the block of agp memory
* allocated. A caller may manipulate the next and prev pointers to link
* each allocated item into a list. These pointers are ignored by the backend.
* Everything else should never be written to, but the caller may read any of
* the items to detrimine the status of this block of agp memory.
*/
struct agp_memory {
int key;
struct agp_memory *next;
struct agp_memory *prev;
size_t page_count;
int num_scratch_pages;
unsigned long *memory;
off_t pg_start;
u32 type;
u32 physical;
u8 is_bound;
u8 is_flushed;
};
#define AGP_NORMAL_MEMORY 0
extern void agp_free_memory(struct agp_memory *);
extern struct agp_memory *agp_allocate_memory(size_t, u32);
extern int agp_copy_info(struct agp_kern_info *);
extern int agp_bind_memory(struct agp_memory *, off_t);
extern int agp_unbind_memory(struct agp_memory *);
extern void agp_enable(u32);
extern int agp_backend_acquire(void);
extern void agp_backend_release(void);
/*
* Interface between drm and agp code. When agp initializes, it makes
* the below structure available via inter_module_register(), drm might
* use it. Keith Owens <kaos@ocs.com.au> 28 Oct 2000.
*/
typedef struct {
void (*free_memory)(struct agp_memory *);
struct agp_memory * (*allocate_memory)(size_t, u32);
int (*bind_memory)(struct agp_memory *, off_t);
int (*unbind_memory)(struct agp_memory *);
void (*enable)(u32);
int (*acquire)(void);
void (*release)(void);
int (*copy_info)(struct agp_kern_info *);
} drm_agp_t;
extern const drm_agp_t *drm_agp_p;
#endif /* __KERNEL__ */
#endif /* _AGP_BACKEND_H */
|
