Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel
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linux
1/******************************************************************************
2 *
3 * Name: aclinux.h - OS specific defines, etc.
4 *
5 *****************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2008, Intel Corp.
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions, and the following disclaimer,
16 * without modification.
17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18 * substantially similar to the "NO WARRANTY" disclaimer below
19 * ("Disclaimer") and any redistribution must be conditioned upon
20 * including a substantially similar Disclaimer requirement for further
21 * binary redistribution.
22 * 3. Neither the names of the above-listed copyright holders nor the names
23 * of any contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * Alternatively, this software may be distributed under the terms of the
27 * GNU General Public License ("GPL") version 2 as published by the Free
28 * Software Foundation.
29 *
30 * NO WARRANTY
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41 * POSSIBILITY OF SUCH DAMAGES.
42 */
43
44#ifndef __ACLINUX_H__
45#define __ACLINUX_H__
46
47#define ACPI_USE_SYSTEM_CLIBRARY
48#define ACPI_USE_DO_WHILE_0
49#define ACPI_MUTEX_TYPE ACPI_BINARY_SEMAPHORE
50
51#ifdef __KERNEL__
52
53#include <linux/string.h>
54#include <linux/kernel.h>
55#include <linux/module.h>
56#include <linux/ctype.h>
57#include <linux/sched.h>
58#include <asm/system.h>
59#include <asm/atomic.h>
60#include <asm/div64.h>
61#include <asm/acpi.h>
62#include <linux/slab.h>
63#include <linux/spinlock_types.h>
64#include <asm/current.h>
65
66/* Host-dependent types and defines */
67
68#define ACPI_MACHINE_WIDTH BITS_PER_LONG
69#define acpi_cache_t struct kmem_cache
70#define acpi_spinlock spinlock_t *
71#define ACPI_EXPORT_SYMBOL(symbol) EXPORT_SYMBOL(symbol);
72#define strtoul simple_strtoul
73
74#else /* !__KERNEL__ */
75
76#include <stdarg.h>
77#include <string.h>
78#include <stdlib.h>
79#include <ctype.h>
80#include <unistd.h>
81
82#if defined(__ia64__) || defined(__x86_64__)
83#define ACPI_MACHINE_WIDTH 64
84#define COMPILER_DEPENDENT_INT64 long
85#define COMPILER_DEPENDENT_UINT64 unsigned long
86#else
87#define ACPI_MACHINE_WIDTH 32
88#define COMPILER_DEPENDENT_INT64 long long
89#define COMPILER_DEPENDENT_UINT64 unsigned long long
90#define ACPI_USE_NATIVE_DIVIDE
91#endif
92
93#ifndef __cdecl
94#define __cdecl
95#endif
96
97#define ACPI_FLUSH_CPU_CACHE()
98#endif /* __KERNEL__ */
99
100/* Linux uses GCC */
101
102#include "acgcc.h"
103
104#define acpi_cpu_flags unsigned long
105
106#define acpi_thread_id struct task_struct *
107
108static inline acpi_thread_id acpi_os_get_thread_id(void)
109{
110 return current;
111}
112
113/*
114 * The irqs_disabled() check is for resume from RAM.
115 * Interrupts are off during resume, just like they are for boot.
116 * However, boot has (system_state != SYSTEM_RUNNING)
117 * to quiet __might_sleep() in kmalloc() and resume does not.
118 */
119#include <acpi/actypes.h>
120static inline void *acpi_os_allocate(acpi_size size)
121{
122 return kmalloc(size, irqs_disabled()? GFP_ATOMIC : GFP_KERNEL);
123}
124static inline void *acpi_os_allocate_zeroed(acpi_size size)
125{
126 return kzalloc(size, irqs_disabled()? GFP_ATOMIC : GFP_KERNEL);
127}
128
129static inline void *acpi_os_acquire_object(acpi_cache_t * cache)
130{
131 return kmem_cache_zalloc(cache,
132 irqs_disabled()? GFP_ATOMIC : GFP_KERNEL);
133}
134
135#define ACPI_ALLOCATE(a) acpi_os_allocate(a)
136#define ACPI_ALLOCATE_ZEROED(a) acpi_os_allocate_zeroed(a)
137#define ACPI_FREE(a) kfree(a)
138
139/*
140 * We need to show where it is safe to preempt execution of ACPICA
141 */
142#define ACPI_PREEMPTION_POINT() \
143 do { \
144 if (!irqs_disabled()) \
145 cond_resched(); \
146 } while (0)
147
148#endif /* __ACLINUX_H__ */