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  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 - 2011, 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.  
  151. #else /* !__KERNEL__ */
  152.  
  153. #include <stdarg.h>
  154. #include <string.h>
  155. #include <stdlib.h>
  156. #include <ctype.h>
  157. #include <unistd.h>
  158.  
  159. /* Host-dependent types and defines for user-space ACPICA */
  160.  
  161. #define ACPI_FLUSH_CPU_CACHE()
  162.  
  163. #if defined(__ia64__) || defined(__x86_64__)
  164. #define ACPI_MACHINE_WIDTH          64
  165. #define COMPILER_DEPENDENT_INT64    long
  166. #define COMPILER_DEPENDENT_UINT64   unsigned long
  167. #define ACPI_CAST_PTHREAD_T(pthread) ((ACPI_THREAD_ID) (pthread))
  168. #else
  169. #define ACPI_MACHINE_WIDTH          32
  170. #define COMPILER_DEPENDENT_INT64    long long
  171. #define COMPILER_DEPENDENT_UINT64   unsigned long long
  172. #define ACPI_USE_NATIVE_DIVIDE
  173. #define ACPI_CAST_PTHREAD_T(pthread) ((ACPI_THREAD_ID) (UINT32) (void *) (pthread))
  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__ */
  234.