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
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1991-1994 Sun Microsystems, Inc.
* Copyright 2016 Joyent, Inc.
*/
#ifndef _SYS_DDIMAPREQ_H
#define _SYS_DDIMAPREQ_H
#include <sys/mman.h>
#include <sys/dditypes.h>
#ifdef __cplusplus
extern "C" {
#endif
#ifdef _KERNEL
/*
* Mapping requests are for an rnumber or for a regspec.
*
* A regspec is a generic triple, usually representing
* type, offset, length
*
* And is interpreted privately between the child and parent.
* The triple should be sufficient for representing byte addressable devices.
*/
typedef union {
int rnumber;
struct regspec *rp;
} ddi_map_obj_t;
typedef enum {
DDI_MT_RNUMBER = 0,
DDI_MT_REGSPEC
} ddi_map_type_t;
/*
* Mapping operators:
*/
typedef enum {
DDI_MO_MAP_UNLOCKED = 0, /* Create mapping, do not lock down */
DDI_MO_MAP_LOCKED, /* Create locked down mapping */
DDI_MO_MAP_HANDLE, /* Create handle, do not map */
DDI_MO_UNMAP, /* Unmap (implies unlock, if locked) */
DDI_MO_UNLOCK /* Unlock mapping, do *not* unmap */
} ddi_map_op_t;
/*
* Mapping request structure...
*/
typedef struct {
ddi_map_op_t map_op;
ddi_map_type_t map_type;
ddi_map_obj_t map_obj;
uint_t map_flags; /* See below... */
int map_prot; /* Prot bits (see sys/mman.h) */
ddi_acc_hdl_t *map_handlep;
int map_vers;
} ddi_map_req_t;
/*
* version number
*/
#define DDI_MAP_VERSION 0x0001
/*
* Mappings subject to the following flags:
*/
/*
* Make mapping suitable for user program use.
*/
#define DDI_MF_USER_MAPPING 0x1
/*
* Make mapping suitable for kernel mapping.
*/
#define DDI_MF_KERNEL_MAPPING 0x2
#define DDI_MF_DEVICE_MAPPING 0x4
/*
* The upper bits of map_flags are reserved for platform-specific flags. These
* start with the highest bit and then work their way down. Currently only one
* bit is used, and only on x86.
*/
/*
* Indicates that there is an extended register
* specification (fully 64-bit aware) being used. This
* should only be used by children of the x86 root nexus
* driver.
*/
#define DDI_MF_EXT_REGSPEC 0x80000000
#endif /* _KERNEL */
/*
* Error (non-zero) return codes from DDI mapping functions...
*/
#define DDI_ME_GENERIC (-1) /* Generic un-enumerated error */
#define DDI_ME_UNIMPLEMENTED (-2) /* Unimplemented operator */
#define DDI_ME_NORESOURCES (-3) /* No resources, try later? */
#define DDI_ME_UNSUPPORTED (-4) /* Op is not supported in impl. */
#define DDI_ME_REGSPEC_RANGE (-5) /* Addressing range error */
#define DDI_ME_RNUMBER_RANGE (-6) /* Addressing range error */
#define DDI_ME_INVAL (-7) /* Invalid input parameter */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_DDIMAPREQ_H */
|
