1/****************************************************************************** 2 * 3 * Name: aclinux.h - OS specific defines, etc. for Linux 4 * 5 *****************************************************************************/ 6 7/* 8 * Copyright (C) 2000 - 2010, 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/* Common (in-kernel/user-space) ACPICA configuration */ 48 49#define ACPI_USE_SYSTEM_CLIBRARY 50#define ACPI_USE_DO_WHILE_0 51#define ACPI_MUTEX_TYPE ACPI_BINARY_SEMAPHORE 52 53 54#ifdef __KERNEL__ 55 56#include <linux/string.h> 57#include <linux/kernel.h> 58#include <linux/module.h> 59#include <linux/ctype.h> 60#include <linux/sched.h> 61#include <asm/system.h> 62#include <asm/atomic.h> 63#include <asm/div64.h> 64#include <asm/acpi.h> 65#include <linux/slab.h> 66#include <linux/spinlock_types.h> 67#include <asm/current.h> 68 69/* Host-dependent types and defines for in-kernel ACPICA */ 70 71#define ACPI_MACHINE_WIDTH BITS_PER_LONG 72#define ACPI_EXPORT_SYMBOL(symbol) EXPORT_SYMBOL(symbol); 73#define strtoul simple_strtoul 74 75#define acpi_cache_t struct kmem_cache 76#define acpi_spinlock spinlock_t * 77#define acpi_cpu_flags unsigned long 78#define acpi_thread_id struct task_struct * 79 80#else /* !__KERNEL__ */ 81 82#include <stdarg.h> 83#include <string.h> 84#include <stdlib.h> 85#include <ctype.h> 86#include <unistd.h> 87 88/* Host-dependent types and defines for user-space ACPICA */ 89 90#define ACPI_FLUSH_CPU_CACHE() 91#define acpi_thread_id pthread_t 92 93#if defined(__ia64__) || defined(__x86_64__) 94#define ACPI_MACHINE_WIDTH 64 95#define COMPILER_DEPENDENT_INT64 long 96#define COMPILER_DEPENDENT_UINT64 unsigned long 97#else 98#define ACPI_MACHINE_WIDTH 32 99#define COMPILER_DEPENDENT_INT64 long long 100#define COMPILER_DEPENDENT_UINT64 unsigned long long 101#define ACPI_USE_NATIVE_DIVIDE 102#endif 103 104#ifndef __cdecl 105#define __cdecl 106#endif 107 108#endif /* __KERNEL__ */ 109 110/* Linux uses GCC */ 111 112#include "acgcc.h" 113 114 115#ifdef __KERNEL__ 116/* 117 * Overrides for in-kernel ACPICA 118 */ 119static inline acpi_thread_id acpi_os_get_thread_id(void) 120{ 121 return current; 122} 123 124/* 125 * The irqs_disabled() check is for resume from RAM. 126 * Interrupts are off during resume, just like they are for boot. 127 * However, boot has (system_state != SYSTEM_RUNNING) 128 * to quiet __might_sleep() in kmalloc() and resume does not. 129 */ 130#include <acpi/actypes.h> 131static inline void *acpi_os_allocate(acpi_size size) 132{ 133 return kmalloc(size, irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL); 134} 135 136static inline void *acpi_os_allocate_zeroed(acpi_size size) 137{ 138 return kzalloc(size, irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL); 139} 140 141static inline void *acpi_os_acquire_object(acpi_cache_t * cache) 142{ 143 return kmem_cache_zalloc(cache, 144 irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL); 145} 146 147#define ACPI_ALLOCATE(a) acpi_os_allocate(a) 148#define ACPI_ALLOCATE_ZEROED(a) acpi_os_allocate_zeroed(a) 149#define ACPI_FREE(a) kfree(a) 150 151#ifndef CONFIG_PREEMPT 152/* 153 * Used within ACPICA to show where it is safe to preempt execution 154 * when CONFIG_PREEMPT=n 155 */ 156#define ACPI_PREEMPTION_POINT() \ 157 do { \ 158 if (!irqs_disabled()) \ 159 cond_resched(); \ 160 } while (0) 161#endif 162 163#endif /* __KERNEL__ */ 164 165#endif /* __ACLINUX_H__ */ 166