1/******************************************************************************
2 *
3 * Name: aclinux.h - OS specific defines, etc.
4 *
5 *****************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2007, R. Byron Moore
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
50#ifdef __KERNEL__
51
52#include <linux/string.h>
53#include <linux/kernel.h>
54#include <linux/module.h>
55#include <linux/ctype.h>
56#include <asm/system.h>
57#include <asm/atomic.h>
58#include <asm/div64.h>
59#include <asm/acpi.h>
60#include <linux/slab.h>
61#include <linux/spinlock_types.h>
62#include <asm/current.h>
63
64/* Host-dependent types and defines */
65
66#define ACPI_MACHINE_WIDTH          BITS_PER_LONG
67#define acpi_cache_t                        struct kmem_cache
68#define acpi_spinlock                   spinlock_t *
69#define ACPI_EXPORT_SYMBOL(symbol)  EXPORT_SYMBOL(symbol);
70#define strtoul                     simple_strtoul
71
72/* Full namespace pathname length limit - arbitrary */
73#define ACPI_PATHNAME_MAX              256
74
75#else				/* !__KERNEL__ */
76
77#include <stdarg.h>
78#include <string.h>
79#include <stdlib.h>
80#include <ctype.h>
81#include <unistd.h>
82
83#if defined(__ia64__) || defined(__x86_64__)
84#define ACPI_MACHINE_WIDTH          64
85#define COMPILER_DEPENDENT_INT64    long
86#define COMPILER_DEPENDENT_UINT64   unsigned long
87#else
88#define ACPI_MACHINE_WIDTH          32
89#define COMPILER_DEPENDENT_INT64    long long
90#define COMPILER_DEPENDENT_UINT64   unsigned long long
91#define ACPI_USE_NATIVE_DIVIDE
92#endif
93
94#define __cdecl
95#define ACPI_FLUSH_CPU_CACHE()
96#endif				/* __KERNEL__ */
97
98/* Linux uses GCC */
99
100#include "acgcc.h"
101
102#define acpi_cpu_flags unsigned long
103
104#define acpi_thread_id struct task_struct *
105
106static inline acpi_thread_id acpi_os_get_thread_id(void)
107{
108	return current;
109}
110
111/*
112 * The irqs_disabled() check is for resume from RAM.
113 * Interrupts are off during resume, just like they are for boot.
114 * However, boot has  (system_state != SYSTEM_RUNNING)
115 * to quiet __might_sleep() in kmalloc() and resume does not.
116 */
117#include <acpi/actypes.h>
118static inline void *acpi_os_allocate(acpi_size size)
119{
120	return kmalloc(size, irqs_disabled()? GFP_ATOMIC : GFP_KERNEL);
121}
122static inline void *acpi_os_allocate_zeroed(acpi_size size)
123{
124	return kzalloc(size, irqs_disabled()? GFP_ATOMIC : GFP_KERNEL);
125}
126
127static inline void *acpi_os_acquire_object(acpi_cache_t * cache)
128{
129	return kmem_cache_zalloc(cache,
130				 irqs_disabled()? GFP_ATOMIC : GFP_KERNEL);
131}
132
133#define ACPI_ALLOCATE(a)	acpi_os_allocate(a)
134#define ACPI_ALLOCATE_ZEROED(a)	acpi_os_allocate_zeroed(a)
135#define ACPI_FREE(a)		kfree(a)
136
137#endif				/* __ACLINUX_H__ */
138