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Diffstat (limited to 'sys/contrib/dev/acpica/utcache.c')
| -rw-r--r-- | sys/contrib/dev/acpica/utcache.c | 425 |
1 files changed, 0 insertions, 425 deletions
diff --git a/sys/contrib/dev/acpica/utcache.c b/sys/contrib/dev/acpica/utcache.c deleted file mode 100644 index 56e88b3..0000000 --- a/sys/contrib/dev/acpica/utcache.c +++ /dev/null @@ -1,425 +0,0 @@ -/****************************************************************************** - * - * Module Name: utcache - local cache allocation routines - * $Revision: 1.8 $ - * - *****************************************************************************/ - -/****************************************************************************** - * - * 1. Copyright Notice - * - * Some or all of this work - Copyright (c) 1999 - 2007, Intel Corp. - * All rights reserved. - * - * 2. License - * - * 2.1. This is your license from Intel Corp. under its intellectual property - * rights. You may have additional license terms from the party that provided - * you this software, covering your right to use that party's intellectual - * property rights. - * - * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a - * copy of the source code appearing in this file ("Covered Code") an - * irrevocable, perpetual, worldwide license under Intel's copyrights in the - * base code distributed originally by Intel ("Original Intel Code") to copy, - * make derivatives, distribute, use and display any portion of the Covered - * Code in any form, with the right to sublicense such rights; and - * - * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent - * license (with the right to sublicense), under only those claims of Intel - * patents that are infringed by the Original Intel Code, to make, use, sell, - * offer to sell, and import the Covered Code and derivative works thereof - * solely to the minimum extent necessary to exercise the above copyright - * license, and in no event shall the patent license extend to any additions - * to or modifications of the Original Intel Code. No other license or right - * is granted directly or by implication, estoppel or otherwise; - * - * The above copyright and patent license is granted only if the following - * conditions are met: - * - * 3. Conditions - * - * 3.1. Redistribution of Source with Rights to Further Distribute Source. - * Redistribution of source code of any substantial portion of the Covered - * Code or modification with rights to further distribute source must include - * the above Copyright Notice, the above License, this list of Conditions, - * and the following Disclaimer and Export Compliance provision. In addition, - * Licensee must cause all Covered Code to which Licensee contributes to - * contain a file documenting the changes Licensee made to create that Covered - * Code and the date of any change. Licensee must include in that file the - * documentation of any changes made by any predecessor Licensee. Licensee - * must include a prominent statement that the modification is derived, - * directly or indirectly, from Original Intel Code. - * - * 3.2. Redistribution of Source with no Rights to Further Distribute Source. - * Redistribution of source code of any substantial portion of the Covered - * Code or modification without rights to further distribute source must - * include the following Disclaimer and Export Compliance provision in the - * documentation and/or other materials provided with distribution. In - * addition, Licensee may not authorize further sublicense of source of any - * portion of the Covered Code, and must include terms to the effect that the - * license from Licensee to its licensee is limited to the intellectual - * property embodied in the software Licensee provides to its licensee, and - * not to intellectual property embodied in modifications its licensee may - * make. - * - * 3.3. Redistribution of Executable. Redistribution in executable form of any - * substantial portion of the Covered Code or modification must reproduce the - * above Copyright Notice, and the following Disclaimer and Export Compliance - * provision in the documentation and/or other materials provided with the - * distribution. - * - * 3.4. Intel retains all right, title, and interest in and to the Original - * Intel Code. - * - * 3.5. Neither the name Intel nor any other trademark owned or controlled by - * Intel shall be used in advertising or otherwise to promote the sale, use or - * other dealings in products derived from or relating to the Covered Code - * without prior written authorization from Intel. - * - * 4. Disclaimer and Export Compliance - * - * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED - * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE - * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, - * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY - * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY - * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A - * PARTICULAR PURPOSE. - * - * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES - * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR - * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, - * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY - * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL - * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS - * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY - * LIMITED REMEDY. - * - * 4.3. Licensee shall not export, either directly or indirectly, any of this - * software or system incorporating such software without first obtaining any - * required license or other approval from the U. S. Department of Commerce or - * any other agency or department of the United States Government. In the - * event Licensee exports any such software from the United States or - * re-exports any such software from a foreign destination, Licensee shall - * ensure that the distribution and export/re-export of the software is in - * compliance with all laws, regulations, orders, or other restrictions of the - * U.S. Export Administration Regulations. Licensee agrees that neither it nor - * any of its subsidiaries will export/re-export any technical data, process, - * software, or service, directly or indirectly, to any country for which the - * United States government or any agency thereof requires an export license, - * other governmental approval, or letter of assurance, without first obtaining - * such license, approval or letter. - * - *****************************************************************************/ - -#define __UTCACHE_C__ - -#include <contrib/dev/acpica/acpi.h> - -#define _COMPONENT ACPI_UTILITIES - ACPI_MODULE_NAME ("utcache") - - -#ifdef ACPI_USE_LOCAL_CACHE -/******************************************************************************* - * - * FUNCTION: AcpiOsCreateCache - * - * PARAMETERS: CacheName - Ascii name for the cache - * ObjectSize - Size of each cached object - * MaxDepth - Maximum depth of the cache (in objects) - * ReturnCache - Where the new cache object is returned - * - * RETURN: Status - * - * DESCRIPTION: Create a cache object - * - ******************************************************************************/ - -ACPI_STATUS -AcpiOsCreateCache ( - char *CacheName, - UINT16 ObjectSize, - UINT16 MaxDepth, - ACPI_MEMORY_LIST **ReturnCache) -{ - ACPI_MEMORY_LIST *Cache; - - - ACPI_FUNCTION_ENTRY (); - - - if (!CacheName || !ReturnCache || (ObjectSize < 16)) - { - return (AE_BAD_PARAMETER); - } - - /* Create the cache object */ - - Cache = AcpiOsAllocate (sizeof (ACPI_MEMORY_LIST)); - if (!Cache) - { - return (AE_NO_MEMORY); - } - - /* Populate the cache object and return it */ - - ACPI_MEMSET (Cache, 0, sizeof (ACPI_MEMORY_LIST)); - Cache->LinkOffset = 8; - Cache->ListName = CacheName; - Cache->ObjectSize = ObjectSize; - Cache->MaxDepth = MaxDepth; - - *ReturnCache = Cache; - return (AE_OK); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiOsPurgeCache - * - * PARAMETERS: Cache - Handle to cache object - * - * RETURN: Status - * - * DESCRIPTION: Free all objects within the requested cache. - * - ******************************************************************************/ - -ACPI_STATUS -AcpiOsPurgeCache ( - ACPI_MEMORY_LIST *Cache) -{ - char *Next; - - - ACPI_FUNCTION_ENTRY (); - - - if (!Cache) - { - return (AE_BAD_PARAMETER); - } - - /* Walk the list of objects in this cache */ - - while (Cache->ListHead) - { - /* Delete and unlink one cached state object */ - - Next = *(ACPI_CAST_INDIRECT_PTR (char, - &(((char *) Cache->ListHead)[Cache->LinkOffset]))); - ACPI_FREE (Cache->ListHead); - - Cache->ListHead = Next; - Cache->CurrentDepth--; - } - - return (AE_OK); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiOsDeleteCache - * - * PARAMETERS: Cache - Handle to cache object - * - * RETURN: Status - * - * DESCRIPTION: Free all objects within the requested cache and delete the - * cache object. - * - ******************************************************************************/ - -ACPI_STATUS -AcpiOsDeleteCache ( - ACPI_MEMORY_LIST *Cache) -{ - ACPI_STATUS Status; - - - ACPI_FUNCTION_ENTRY (); - - - /* Purge all objects in the cache */ - - Status = AcpiOsPurgeCache (Cache); - if (ACPI_FAILURE (Status)) - { - return (Status); - } - - /* Now we can delete the cache object */ - - AcpiOsFree (Cache); - return (AE_OK); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiOsReleaseObject - * - * PARAMETERS: Cache - Handle to cache object - * Object - The object to be released - * - * RETURN: None - * - * DESCRIPTION: Release an object to the specified cache. If cache is full, - * the object is deleted. - * - ******************************************************************************/ - -ACPI_STATUS -AcpiOsReleaseObject ( - ACPI_MEMORY_LIST *Cache, - void *Object) -{ - ACPI_STATUS Status; - - - ACPI_FUNCTION_ENTRY (); - - - if (!Cache || !Object) - { - return (AE_BAD_PARAMETER); - } - - /* If cache is full, just free this object */ - - if (Cache->CurrentDepth >= Cache->MaxDepth) - { - ACPI_FREE (Object); - ACPI_MEM_TRACKING (Cache->TotalFreed++); - } - - /* Otherwise put this object back into the cache */ - - else - { - Status = AcpiUtAcquireMutex (ACPI_MTX_CACHES); - if (ACPI_FAILURE (Status)) - { - return (Status); - } - - /* Mark the object as cached */ - - ACPI_MEMSET (Object, 0xCA, Cache->ObjectSize); - ACPI_SET_DESCRIPTOR_TYPE (Object, ACPI_DESC_TYPE_CACHED); - - /* Put the object at the head of the cache list */ - - * (ACPI_CAST_INDIRECT_PTR (char, - &(((char *) Object)[Cache->LinkOffset]))) = Cache->ListHead; - Cache->ListHead = Object; - Cache->CurrentDepth++; - - (void) AcpiUtReleaseMutex (ACPI_MTX_CACHES); - } - - return (AE_OK); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiOsAcquireObject - * - * PARAMETERS: Cache - Handle to cache object - * - * RETURN: the acquired object. NULL on error - * - * DESCRIPTION: Get an object from the specified cache. If cache is empty, - * the object is allocated. - * - ******************************************************************************/ - -void * -AcpiOsAcquireObject ( - ACPI_MEMORY_LIST *Cache) -{ - ACPI_STATUS Status; - void *Object; - - - ACPI_FUNCTION_NAME (OsAcquireObject); - - - if (!Cache) - { - return (NULL); - } - - Status = AcpiUtAcquireMutex (ACPI_MTX_CACHES); - if (ACPI_FAILURE (Status)) - { - return (NULL); - } - - ACPI_MEM_TRACKING (Cache->Requests++); - - /* Check the cache first */ - - if (Cache->ListHead) - { - /* There is an object available, use it */ - - Object = Cache->ListHead; - Cache->ListHead = *(ACPI_CAST_INDIRECT_PTR (char, - &(((char *) Object)[Cache->LinkOffset]))); - - Cache->CurrentDepth--; - - ACPI_MEM_TRACKING (Cache->Hits++); - ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, - "Object %p from %s cache\n", Object, Cache->ListName)); - - Status = AcpiUtReleaseMutex (ACPI_MTX_CACHES); - if (ACPI_FAILURE (Status)) - { - return (NULL); - } - - /* Clear (zero) the previously used Object */ - - ACPI_MEMSET (Object, 0, Cache->ObjectSize); - } - else - { - /* The cache is empty, create a new object */ - - ACPI_MEM_TRACKING (Cache->TotalAllocated++); - -#ifdef ACPI_DBG_TRACK_ALLOCATIONS - if ((Cache->TotalAllocated - Cache->TotalFreed) > Cache->MaxOccupied) - { - Cache->MaxOccupied = Cache->TotalAllocated - Cache->TotalFreed; - } -#endif - - /* Avoid deadlock with ACPI_ALLOCATE_ZEROED */ - - Status = AcpiUtReleaseMutex (ACPI_MTX_CACHES); - if (ACPI_FAILURE (Status)) - { - return (NULL); - } - - Object = ACPI_ALLOCATE_ZEROED (Cache->ObjectSize); - if (!Object) - { - return (NULL); - } - } - - return (Object); -} -#endif /* ACPI_USE_LOCAL_CACHE */ - - |
