drivers/acpi/include/platform/aclinux.h

   1 /******************************************************************************
   2  *
   3  * Name: aclinux.h - OS specific defines, etc. for Linux
   4  *
   5  *****************************************************************************/
   6
   7 /******************************************************************************
   8  *
   9  * 1. Copyright Notice
  10  *
  11  * Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp.
  12  * All rights reserved.
  13  *
  14  * 2. License
  15  *
  16  * 2.1. This is your license from Intel Corp. under its intellectual property
  17  * rights.  You may have additional license terms from the party that provided
  18  * you this software, covering your right to use that party's intellectual
  19  * property rights.
  20  *
  21  * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
  22  * copy of the source code appearing in this file ("Covered Code") an
  23  * irrevocable, perpetual, worldwide license under Intel's copyrights in the
  24  * base code distributed originally by Intel ("Original Intel Code") to copy,
  25  * make derivatives, distribute, use and display any portion of the Covered
  26  * Code in any form, with the right to sublicense such rights; and
  27  *
  28  * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
  29  * license (with the right to sublicense), under only those claims of Intel
  30  * patents that are infringed by the Original Intel Code, to make, use, sell,
  31  * offer to sell, and import the Covered Code and derivative works thereof
  32  * solely to the minimum extent necessary to exercise the above copyright
  33  * license, and in no event shall the patent license extend to any additions
  34  * to or modifications of the Original Intel Code.  No other license or right
  35  * is granted directly or by implication, estoppel or otherwise;
  36  *
  37  * The above copyright and patent license is granted only if the following
  38  * conditions are met:
  39  *
  40  * 3. Conditions
  41  *
  42  * 3.1. Redistribution of Source with Rights to Further Distribute Source.
  43  * Redistribution of source code of any substantial portion of the Covered
  44  * Code or modification with rights to further distribute source must include
  45  * the above Copyright Notice, the above License, this list of Conditions,
  46  * and the following Disclaimer and Export Compliance provision.  In addition,
  47  * Licensee must cause all Covered Code to which Licensee contributes to
  48  * contain a file documenting the changes Licensee made to create that Covered
  49  * Code and the date of any change.  Licensee must include in that file the
  50  * documentation of any changes made by any predecessor Licensee.  Licensee
  51  * must include a prominent statement that the modification is derived,
  52  * directly or indirectly, from Original Intel Code.
  53  *
  54  * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
  55  * Redistribution of source code of any substantial portion of the Covered
  56  * Code or modification without rights to further distribute source must
  57  * include the following Disclaimer and Export Compliance provision in the
  58  * documentation and/or other materials provided with distribution.  In
  59  * addition, Licensee may not authorize further sublicense of source of any
  60  * portion of the Covered Code, and must include terms to the effect that the
  61  * license from Licensee to its licensee is limited to the intellectual
  62  * property embodied in the software Licensee provides to its licensee, and
  63  * not to intellectual property embodied in modifications its licensee may
  64  * make.
  65  *
  66  * 3.3. Redistribution of Executable. Redistribution in executable form of any
  67  * substantial portion of the Covered Code or modification must reproduce the
  68  * above Copyright Notice, and the following Disclaimer and Export Compliance
  69  * provision in the documentation and/or other materials provided with the
  70  * distribution.
  71  *
  72  * 3.4. Intel retains all right, title, and interest in and to the Original
  73  * Intel Code.
  74  *
  75  * 3.5. Neither the name Intel nor any other trademark owned or controlled by
  76  * Intel shall be used in advertising or otherwise to promote the sale, use or
  77  * other dealings in products derived from or relating to the Covered Code
  78  * without prior written authorization from Intel.
  79  *
  80  * 4. Disclaimer and Export Compliance
  81  *
  82  * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
  83  * HERE.  ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
  84  * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT,  ASSISTANCE,
  85  * INSTALLATION, TRAINING OR OTHER SERVICES.  INTEL WILL NOT PROVIDE ANY
  86  * UPDATES, ENHANCEMENTS OR EXTENSIONS.  INTEL SPECIFICALLY DISCLAIMS ANY
  87  * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
  88  * PARTICULAR PURPOSE.
  89  *
  90  * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
  91  * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
  92  * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
  93  * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
  94  * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
  95  * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.  THESE LIMITATIONS
  96  * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
  97  * LIMITED REMEDY.
  98  *
  99  * 4.3. Licensee shall not export, either directly or indirectly, any of this
 100  * software or system incorporating such software without first obtaining any
 101  * required license or other approval from the U. S. Department of Commerce or
 102  * any other agency or department of the United States Government.  In the
 103  * event Licensee exports any such software from the United States or
 104  * re-exports any such software from a foreign destination, Licensee shall
 105  * ensure that the distribution and export/re-export of the software is in
 106  * compliance with all laws, regulations, orders, or other restrictions of the
 107  * U.S. Export Administration Regulations. Licensee agrees that neither it nor
 108  * any of its subsidiaries will export/re-export any technical data, process,
 109  * software, or service, directly or indirectly, to any country for which the
 110  * United States government or any agency thereof requires an export license,
 111  * other governmental approval, or letter of assurance, without first obtaining
 112  * such license, approval or letter.
 113  *
 114  *****************************************************************************/
 115
 116 #ifndef __ACLINUX_H__
 117 #define __ACLINUX_H__
 118
 119 /* Common (in-kernel/user-space) ACPICA configuration */
 120
 121 #define ACPI_USE_SYSTEM_CLIBRARY
 122 #define ACPI_USE_DO_WHILE_0
 123 #define ACPI_MUTEX_TYPE             ACPI_BINARY_SEMAPHORE
 124
 125
 126 #ifdef __KERNEL__
 127
 128 #include <linux/string.h>
 129 #include <linux/kernel.h>
 130 #include <linux/module.h>
 131 #include <linux/ctype.h>
 132 #include <linux/sched.h>
 133 #include <asm/system.h>
 134 #include <asm/atomic.h>
 135 #include <asm/div64.h>
 136 #include <asm/acpi.h>
 137 #include <linux/slab.h>
 138 #include <linux/spinlock_types.h>
 139 #include <asm/current.h>
 140
 141 /* Host-dependent types and defines for in-kernel ACPICA */
 142
 143 #define ACPI_MACHINE_WIDTH          BITS_PER_LONG
 144 #define ACPI_EXPORT_SYMBOL(symbol)  EXPORT_SYMBOL(symbol);
 145 #define strtoul                     simple_strtoul
 146
 147 #define ACPI_CACHE_T                struct kmem_cache
 148 #define ACPI_SPINLOCK               spinlock_t *
 149 #define ACPI_CPU_FLAGS              unsigned long
 150 #define ACPI_THREAD_ID              struct task_struct *
 151
 152 #else /* !__KERNEL__ */
 153
 154 #include <stdarg.h>
 155 #include <string.h>
 156 #include <stdlib.h>
 157 #include <ctype.h>
 158 #include <unistd.h>
 159
 160 /* Host-dependent types and defines for user-space ACPICA */
 161
 162 #define ACPI_FLUSH_CPU_CACHE()
 163 #define ACPI_THREAD_ID              pthread_t
 164
 165 #if defined(__ia64__) || defined(__x86_64__)
 166 #define ACPI_MACHINE_WIDTH          64
 167 #define COMPILER_DEPENDENT_INT64    long
 168 #define COMPILER_DEPENDENT_UINT64   unsigned long
 169 #else
 170 #define ACPI_MACHINE_WIDTH          32
 171 #define COMPILER_DEPENDENT_INT64    long long
 172 #define COMPILER_DEPENDENT_UINT64   unsigned long long
 173 #define ACPI_USE_NATIVE_DIVIDE
 174 #endif
 175
 176 #ifndef __cdecl
 177 #define __cdecl
 178 #endif
 179
 180 #endif /* __KERNEL__ */
 181
 182 /* Linux uses GCC */
 183
 184 #include "acgcc.h"
 185
 186
 187 #ifdef __KERNEL__
 188 /*
 189  * Overrides for in-kernel ACPICA
 190  */
 191 static inline acpi_thread_id acpi_os_get_thread_id(void)
 192 {
 193     return current;
 194 }
 195
 196 /*
 197  * The irqs_disabled() check is for resume from RAM.
 198  * Interrupts are off during resume, just like they are for boot.
 199  * However, boot has  (system_state != SYSTEM_RUNNING)
 200  * to quiet __might_sleep() in kmalloc() and resume does not.
 201  */
 202 #include <acpi/actypes.h>
 203 static inline void *acpi_os_allocate(acpi_size size)
 204 {
 205     return kmalloc(size, irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL);
 206 }
 207
 208 static inline void *acpi_os_allocate_zeroed(acpi_size size)
 209 {
 210     return kzalloc(size, irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL);
 211 }
 212
 213 static inline void *acpi_os_acquire_object(acpi_cache_t * cache)
 214 {
 215     return kmem_cache_zalloc(cache,
 216         irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL);
 217 }
 218
 219 #define ACPI_ALLOCATE(a)        acpi_os_allocate(a)
 220 #define ACPI_ALLOCATE_ZEROED(a) acpi_os_allocate_zeroed(a)
 221 #define ACPI_FREE(a)            kfree(a)
 222
 223 /* Used within ACPICA to show where it is safe to preempt execution */
 224
 225 #define ACPI_PREEMPTION_POINT() \
 226     do { \
 227         if (!irqs_disabled()) \
 228             cond_resched(); \
 229     } while (0)
 230
 231 #endif /* __KERNEL__ */
 232
 233 #endif /* __ACLINUX_H__ */