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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/******************************************************************************
2 *
Bob Mooree0c437b2009-04-22 13:39:47 +08003 * Name: aclinux.h - OS specific defines, etc. for Linux
Linus Torvalds1da177e2005-04-16 15:20:36 -07004 *
5 *****************************************************************************/
6
7/*
Bob Mooreb4e104e2011-01-17 11:05:40 +08008 * Copyright (C) 2000 - 2011, Intel Corp.
Linus Torvalds1da177e2005-04-16 15:20:36 -07009 * 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
Bob Mooree0c437b2009-04-22 13:39:47 +080047/* Common (in-kernel/user-space) ACPICA configuration */
48
Linus Torvalds1da177e2005-04-16 15:20:36 -070049#define ACPI_USE_SYSTEM_CLIBRARY
50#define ACPI_USE_DO_WHILE_0
Bob Moore1685bd42008-12-31 03:03:29 +080051#define ACPI_MUTEX_TYPE ACPI_BINARY_SEMAPHORE
Linus Torvalds1da177e2005-04-16 15:20:36 -070052
Bob Mooree0c437b2009-04-22 13:39:47 +080053
Linus Torvalds1da177e2005-04-16 15:20:36 -070054#ifdef __KERNEL__
55
Linus Torvalds1da177e2005-04-16 15:20:36 -070056#include <linux/string.h>
57#include <linux/kernel.h>
58#include <linux/ctype.h>
Alexey Starikovskiy8bd108d2008-09-25 21:40:30 +040059#include <linux/sched.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070060#include <asm/system.h>
Arun Sharma60063492011-07-26 16:09:06 -070061#include <linux/atomic.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070062#include <asm/div64.h>
63#include <asm/acpi.h>
Robert Moore73459f72005-06-24 00:00:00 -040064#include <linux/slab.h>
Bob Moore967440e2006-06-23 17:04:00 -040065#include <linux/spinlock_types.h>
Len Brownab8aa062006-07-07 20:11:07 -040066#include <asm/current.h>
Bob Moore83135242006-10-03 00:00:00 -040067
Bob Mooree0c437b2009-04-22 13:39:47 +080068/* Host-dependent types and defines for in-kernel ACPICA */
Bob Moore83135242006-10-03 00:00:00 -040069
70#define ACPI_MACHINE_WIDTH BITS_PER_LONG
Bob Moore83135242006-10-03 00:00:00 -040071#define ACPI_EXPORT_SYMBOL(symbol) EXPORT_SYMBOL(symbol);
72#define strtoul simple_strtoul
Robert Moore73459f72005-06-24 00:00:00 -040073
Bob Mooree0c437b2009-04-22 13:39:47 +080074#define acpi_cache_t struct kmem_cache
75#define acpi_spinlock spinlock_t *
76#define acpi_cpu_flags unsigned long
Bob Mooree0c437b2009-04-22 13:39:47 +080077
78#else /* !__KERNEL__ */
Linus Torvalds1da177e2005-04-16 15:20:36 -070079
80#include <stdarg.h>
81#include <string.h>
82#include <stdlib.h>
83#include <ctype.h>
84#include <unistd.h>
85
Bob Mooree0c437b2009-04-22 13:39:47 +080086/* Host-dependent types and defines for user-space ACPICA */
87
88#define ACPI_FLUSH_CPU_CACHE()
Lin Ming28eb3fc2010-09-15 13:55:13 +080089#define ACPI_CAST_PTHREAD_T(pthread) ((acpi_thread_id) (pthread))
Bob Mooree0c437b2009-04-22 13:39:47 +080090
Linus Torvalds1da177e2005-04-16 15:20:36 -070091#if defined(__ia64__) || defined(__x86_64__)
92#define ACPI_MACHINE_WIDTH 64
93#define COMPILER_DEPENDENT_INT64 long
94#define COMPILER_DEPENDENT_UINT64 unsigned long
95#else
96#define ACPI_MACHINE_WIDTH 32
97#define COMPILER_DEPENDENT_INT64 long long
98#define COMPILER_DEPENDENT_UINT64 unsigned long long
99#define ACPI_USE_NATIVE_DIVIDE
100#endif
101
Bob Moorea0a3f6c2007-03-27 20:25:46 -0400102#ifndef __cdecl
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103#define __cdecl
Bob Moorea0a3f6c2007-03-27 20:25:46 -0400104#endif
105
Bob Mooree0c437b2009-04-22 13:39:47 +0800106#endif /* __KERNEL__ */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107
108/* Linux uses GCC */
109
110#include "acgcc.h"
111
Bob Mooreb8e4d892006-01-27 16:43:00 -0500112
Bob Mooree0c437b2009-04-22 13:39:47 +0800113#ifdef __KERNEL__
Lin Ming28eb3fc2010-09-15 13:55:13 +0800114#include <acpi/actypes.h>
Bob Mooree0c437b2009-04-22 13:39:47 +0800115/*
116 * Overrides for in-kernel ACPICA
117 */
Len Brownfd350942007-05-09 23:34:35 -0400118static inline acpi_thread_id acpi_os_get_thread_id(void)
119{
Lin Ming28eb3fc2010-09-15 13:55:13 +0800120 return (acpi_thread_id)(unsigned long)current;
Len Brownfd350942007-05-09 23:34:35 -0400121}
Len Brownec7381d2006-04-01 05:12:23 -0500122
Len Browne21c1ca2006-07-10 01:35:51 -0400123/*
124 * The irqs_disabled() check is for resume from RAM.
125 * Interrupts are off during resume, just like they are for boot.
126 * However, boot has (system_state != SYSTEM_RUNNING)
127 * to quiet __might_sleep() in kmalloc() and resume does not.
128 */
Len Brownfd350942007-05-09 23:34:35 -0400129static inline void *acpi_os_allocate(acpi_size size)
130{
Bob Mooree0c437b2009-04-22 13:39:47 +0800131 return kmalloc(size, irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL);
Len Browne21c1ca2006-07-10 01:35:51 -0400132}
Bob Mooree0c437b2009-04-22 13:39:47 +0800133
Len Brownfd350942007-05-09 23:34:35 -0400134static inline void *acpi_os_allocate_zeroed(acpi_size size)
135{
Bob Mooree0c437b2009-04-22 13:39:47 +0800136 return kzalloc(size, irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL);
Len Browne21c1ca2006-07-10 01:35:51 -0400137}
138
Len Brownfd350942007-05-09 23:34:35 -0400139static inline void *acpi_os_acquire_object(acpi_cache_t * cache)
140{
141 return kmem_cache_zalloc(cache,
Bob Mooree0c437b2009-04-22 13:39:47 +0800142 irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL);
Len Browne21c1ca2006-07-10 01:35:51 -0400143}
144
Bob Mooree0c437b2009-04-22 13:39:47 +0800145#define ACPI_ALLOCATE(a) acpi_os_allocate(a)
146#define ACPI_ALLOCATE_ZEROED(a) acpi_os_allocate_zeroed(a)
147#define ACPI_FREE(a) kfree(a)
Len Browne21c1ca2006-07-10 01:35:51 -0400148
Thomas Gleixner0a7992c2010-08-11 14:17:29 -0700149#ifndef CONFIG_PREEMPT
150/*
151 * Used within ACPICA to show where it is safe to preempt execution
152 * when CONFIG_PREEMPT=n
153 */
Bob Mooree0c437b2009-04-22 13:39:47 +0800154#define ACPI_PREEMPTION_POINT() \
155 do { \
Thomas Gleixner0a7992c2010-08-11 14:17:29 -0700156 if (!irqs_disabled()) \
Bob Mooree0c437b2009-04-22 13:39:47 +0800157 cond_resched(); \
Wu Fengguangabe1dfa2008-11-26 14:35:22 +0800158 } while (0)
Thomas Gleixner0a7992c2010-08-11 14:17:29 -0700159#endif
Alexey Starikovskiy8bd108d2008-09-25 21:40:30 +0400160
Rafael J. Wysocki07e49a72011-07-06 20:44:25 +0200161/*
162 * When lockdep is enabled, the spin_lock_init() macro stringifies it's
163 * argument and uses that as a name for the lock in debugging.
164 * By executing spin_lock_init() in a macro the key changes from "lock" for
165 * all locks to the name of the argument of acpi_os_create_lock(), which
166 * prevents lockdep from reporting false positives for ACPICA locks.
167 */
168#define acpi_os_create_lock(__handle) \
169({ \
170 spinlock_t *lock = ACPI_ALLOCATE(sizeof(*lock)); \
171 \
172 if (lock) { \
173 *(__handle) = lock; \
174 spin_lock_init(*(__handle)); \
175 } \
176 lock ? AE_OK : AE_NO_MEMORY; \
177})
178
Bob Mooree0c437b2009-04-22 13:39:47 +0800179#endif /* __KERNEL__ */
180
181#endif /* __ACLINUX_H__ */