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
136
137
138
139
140
141
142
143
144
145
146
147
148
|
/******************************************************************************
*
* Name: aclinuxex.h - Extra OS specific defines, etc. for Linux
*
*****************************************************************************/
/*
* Copyright (C) 2000 - 2015, Intel Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*/
#ifndef __ACLINUXEX_H__
#define __ACLINUXEX_H__
#ifdef __KERNEL__
#ifndef ACPI_USE_NATIVE_DIVIDE
#ifndef ACPI_DIV_64_BY_32
#define ACPI_DIV_64_BY_32(n_hi, n_lo, d32, q32, r32) \
do { \
u64 (__n) = ((u64) n_hi) << 32 | (n_lo); \
(r32) = do_div ((__n), (d32)); \
(q32) = (u32) (__n); \
} while (0)
#endif
#ifndef ACPI_SHIFT_RIGHT_64
#define ACPI_SHIFT_RIGHT_64(n_hi, n_lo) \
do { \
(n_lo) >>= 1; \
(n_lo) |= (((n_hi) & 1) << 31); \
(n_hi) >>= 1; \
} while (0)
#endif
#endif
/*
* Overrides for in-kernel ACPICA
*/
acpi_status __init acpi_os_initialize(void);
acpi_status acpi_os_terminate(void);
/*
* The irqs_disabled() check is for resume from RAM.
* Interrupts are off during resume, just like they are for boot.
* However, boot has (system_state != SYSTEM_RUNNING)
* to quiet __might_sleep() in kmalloc() and resume does not.
*/
static inline void *acpi_os_allocate(acpi_size size)
{
return kmalloc(size, irqs_disabled()? GFP_ATOMIC : GFP_KERNEL);
}
static inline void *acpi_os_allocate_zeroed(acpi_size size)
{
return kzalloc(size, irqs_disabled()? GFP_ATOMIC : GFP_KERNEL);
}
static inline void acpi_os_free(void *memory)
{
kfree(memory);
}
static inline void *acpi_os_acquire_object(acpi_cache_t * cache)
{
return kmem_cache_zalloc(cache,
irqs_disabled()? GFP_ATOMIC : GFP_KERNEL);
}
static inline acpi_thread_id acpi_os_get_thread_id(void)
{
return (acpi_thread_id) (unsigned long)current;
}
/*
* When lockdep is enabled, the spin_lock_init() macro stringifies it's
* argument and uses that as a name for the lock in debugging.
* By executing spin_lock_init() in a macro the key changes from "lock" for
* all locks to the name of the argument of acpi_os_create_lock(), which
* prevents lockdep from reporting false positives for ACPICA locks.
*/
#define acpi_os_create_lock(__handle) \
({ \
spinlock_t *lock = ACPI_ALLOCATE(sizeof(*lock)); \
if (lock) { \
*(__handle) = lock; \
spin_lock_init(*(__handle)); \
} \
lock ? AE_OK : AE_NO_MEMORY; \
})
static inline u8 acpi_os_readable(void *pointer, acpi_size length)
{
return TRUE;
}
static inline acpi_status acpi_os_initialize_command_signals(void)
{
return AE_OK;
}
static inline void acpi_os_terminate_command_signals(void)
{
}
/*
* OSL interfaces added by Linux
*/
void early_acpi_os_unmap_memory(void __iomem * virt, acpi_size size);
#endif /* __KERNEL__ */
#endif /* __ACLINUXEX_H__ */
|
