FreeBSD/Linux Kernel Cross Reference
sys/contrib/dev/acpica/compiler/aslcache.c

     /******************************************************************************
      *
      * Module Name: aslcache -- Local cache support for iASL
      *
      *****************************************************************************/
     
     /******************************************************************************
      *
      * 1. Copyright Notice
     *
     * Some or all of this work - Copyright (c) 1999 - 2022, 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.
    *
    *****************************************************************************
    *
    * Alternatively, you may choose to be licensed under the terms of the
    * following license:
    *
    * Redistribution and use in source and binary forms, with or without
    * modification, are permitted provided that the following conditions
    * are met:
    * 1. Redistributions of source code must retain the above copyright
    *    notice, this list of conditions, and the following disclaimer,
    *    without modification.
    * 2. Redistributions in binary form must reproduce at minimum a disclaimer
    *    substantially similar to the "NO WARRANTY" disclaimer below
    *    ("Disclaimer") and any redistribution must be conditioned upon
    *    including a substantially similar Disclaimer requirement for further
    *    binary redistribution.
    * 3. Neither the names of the above-listed copyright holders nor the names
    *    of any contributors may be used to endorse or promote products derived
    *    from this software without specific prior written permission.
    *
    * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
    * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    *
    * Alternatively, you may choose to be licensed under the terms of the
    * GNU General Public License ("GPL") version 2 as published by the Free
    * Software Foundation.
    *
    *****************************************************************************/
   
   #include <contrib/dev/acpica/compiler/aslcompiler.h>
   
   /*
    * Local caches. The caches are fully deleted after the compilation/disassembly
    * of each individual input file. Thus, individual allocations from the cache
    * memory do not need to be freed or even released back into the cache.
    *
    * See aslallocate.c for standard heap allocations.
    */
   
   
   /*******************************************************************************
    *
    * FUNCTION:    UtLocalCacheCalloc
    *
    * PARAMETERS:  Length              - Size of buffer requested
    *
    * RETURN:      Pointer to the buffer. Aborts compiler on allocation failure
    *
    * DESCRIPTION: Allocate a string buffer. Bypass the local
    *              dynamic memory manager for performance reasons (This has a
    *              major impact on the speed of the compiler.)
    *
    ******************************************************************************/
   
   char *
   UtLocalCacheCalloc (
       UINT32                  Length)
   {
       char                    *Buffer;
       ASL_CACHE_INFO          *Cache;
       UINT32                  CacheSize = ASL_STRING_CACHE_SIZE;
   
   
   #ifdef ACPI_MISALIGNMENT_NOT_SUPPORTED
       /* Used for objects other than strings, so keep allocations aligned */
       Length = ACPI_ROUND_UP_TO_NATIVE_WORD (Length);
   #endif
   
       if (Length > CacheSize)
       {
           CacheSize = Length;
   
           if (AslGbl_StringCacheList)
           {
               Cache = UtLocalCalloc (sizeof (Cache->Next) + CacheSize);
   
               /* Link new cache buffer just following head of list */
   
               Cache->Next = AslGbl_StringCacheList->Next;
               AslGbl_StringCacheList->Next = Cache;
   
               /* Leave cache management pointers alone as they pertain to head */
   
               AslGbl_StringCount++;
               AslGbl_StringSize += Length;
   
               return (Cache->Buffer);
           }
       }
   
       if ((AslGbl_StringCacheNext + Length) >= AslGbl_StringCacheLast)
       {
           /* Allocate a new buffer */
   
           Cache = UtLocalCalloc (sizeof (Cache->Next) + CacheSize);
   
           /* Link new cache buffer to head of list */
   
           Cache->Next = AslGbl_StringCacheList;
           AslGbl_StringCacheList = Cache;
   
           /* Setup cache management pointers */
   
           AslGbl_StringCacheNext = Cache->Buffer;
           AslGbl_StringCacheLast = AslGbl_StringCacheNext + CacheSize;
       }
   
       AslGbl_StringCount++;
       AslGbl_StringSize += Length;
   
       Buffer = AslGbl_StringCacheNext;
       AslGbl_StringCacheNext += Length;
       return (Buffer);
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    UtParseOpCacheCalloc
    *
    * PARAMETERS:  None
    *
    * RETURN:      New parse op. Aborts on allocation failure
    *
    * DESCRIPTION: Allocate a new parse op for the parse tree. Bypass the local
    *              dynamic memory manager for performance reasons (This has a
    *              major impact on the speed of the compiler.)
    *
    ******************************************************************************/
   
   ACPI_PARSE_OBJECT *
   UtParseOpCacheCalloc (
       void)
   {
       ASL_CACHE_INFO          *Cache;
   
   
       if (AslGbl_ParseOpCacheNext >= AslGbl_ParseOpCacheLast)
       {
           /* Allocate a new buffer */
   
           Cache = UtLocalCalloc (sizeof (Cache->Next) +
               (sizeof (ACPI_PARSE_OBJECT) * ASL_PARSEOP_CACHE_SIZE));
   
           /* Link new cache buffer to head of list */
   
           Cache->Next = AslGbl_ParseOpCacheList;
           AslGbl_ParseOpCacheList = Cache;
   
           /* Setup cache management pointers */
   
           AslGbl_ParseOpCacheNext = ACPI_CAST_PTR (ACPI_PARSE_OBJECT, Cache->Buffer);
           AslGbl_ParseOpCacheLast = AslGbl_ParseOpCacheNext + ASL_PARSEOP_CACHE_SIZE;
       }
   
       AslGbl_ParseOpCount++;
       return (AslGbl_ParseOpCacheNext++);
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    UtSubtableCacheCalloc - Data Table compiler
    *
    * PARAMETERS:  None
    *
    * RETURN:      Pointer to the buffer. Aborts on allocation failure
    *
    * DESCRIPTION: Allocate a subtable object buffer. Bypass the local
    *              dynamic memory manager for performance reasons (This has a
    *              major impact on the speed of the compiler.)
    *
    ******************************************************************************/
   
   DT_SUBTABLE *
   UtSubtableCacheCalloc (
       void)
   {
       ASL_CACHE_INFO          *Cache;
   
   
       if (AslGbl_SubtableCacheNext >= AslGbl_SubtableCacheLast)
       {
           /* Allocate a new buffer */
   
           Cache = UtLocalCalloc (sizeof (Cache->Next) +
               (sizeof (DT_SUBTABLE) * ASL_SUBTABLE_CACHE_SIZE));
   
           /* Link new cache buffer to head of list */
   
           Cache->Next = AslGbl_SubtableCacheList;
           AslGbl_SubtableCacheList = Cache;
   
           /* Setup cache management pointers */
   
           AslGbl_SubtableCacheNext = ACPI_CAST_PTR (DT_SUBTABLE, Cache->Buffer);
           AslGbl_SubtableCacheLast = AslGbl_SubtableCacheNext + ASL_SUBTABLE_CACHE_SIZE;
       }
   
       AslGbl_SubtableCount++;
       return (AslGbl_SubtableCacheNext++);
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    UtFieldCacheCalloc - Data Table compiler
    *
    * PARAMETERS:  None
    *
    * RETURN:      Pointer to the buffer. Aborts on allocation failure
    *
    * DESCRIPTION: Allocate a field object buffer. Bypass the local
    *              dynamic memory manager for performance reasons (This has a
    *              major impact on the speed of the compiler.)
    *
    ******************************************************************************/
   
   DT_FIELD *
   UtFieldCacheCalloc (
       void)
   {
       ASL_CACHE_INFO          *Cache;
   
   
       if (AslGbl_FieldCacheNext >= AslGbl_FieldCacheLast)
       {
           /* Allocate a new buffer */
   
           Cache = UtLocalCalloc (sizeof (Cache->Next) +
               (sizeof (DT_FIELD) * ASL_FIELD_CACHE_SIZE));
   
           /* Link new cache buffer to head of list */
   
           Cache->Next = AslGbl_FieldCacheList;
           AslGbl_FieldCacheList = Cache;
   
           /* Setup cache management pointers */
   
           AslGbl_FieldCacheNext = ACPI_CAST_PTR (DT_FIELD, Cache->Buffer);
           AslGbl_FieldCacheLast =AslGbl_FieldCacheNext + ASL_FIELD_CACHE_SIZE;
       }
   
       AslGbl_FieldCount++;
       return (AslGbl_FieldCacheNext++);
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    UtDeleteLocalCaches
    *
    * PARAMETERS:  None
    *
    * RETURN:      None
    *
    * DESCRIPTION: Delete all local cache buffer blocks
    *
    ******************************************************************************/
   
   void
   UtDeleteLocalCaches (
       void)
   {
       UINT32                  BufferCount;
       ASL_CACHE_INFO          *Next;
   
   
       /*
        * Generic cache, arbitrary size allocations
        */
       BufferCount = 0;
       while (AslGbl_StringCacheList)
       {
           Next = AslGbl_StringCacheList->Next;
           ACPI_FREE (AslGbl_StringCacheList);
           AslGbl_StringCacheList = Next;
           BufferCount++;
       }
   
       DbgPrint (ASL_DEBUG_OUTPUT,
           "%u Strings (%u bytes), Buffer size: %u bytes, %u Buffers\n",
           AslGbl_StringCount, AslGbl_StringSize, ASL_STRING_CACHE_SIZE, BufferCount);
   
       /* Reset cache globals */
   
       AslGbl_StringSize = 0;
       AslGbl_StringCount = 0;
       AslGbl_StringCacheNext = NULL;
       AslGbl_StringCacheLast = NULL;
   
       /*
        * Parse Op cache
        */
       BufferCount = 0;
       while (AslGbl_ParseOpCacheList)
       {
           Next = AslGbl_ParseOpCacheList->Next;
           ACPI_FREE (AslGbl_ParseOpCacheList);
           AslGbl_ParseOpCacheList = Next;
           BufferCount++;
       }
   
       DbgPrint (ASL_DEBUG_OUTPUT,
           "%u ParseOps, Buffer size: %u ops (%u bytes), %u Buffers\n",
           AslGbl_ParseOpCount, ASL_PARSEOP_CACHE_SIZE,
           ((UINT32) sizeof (ACPI_PARSE_OBJECT) * ASL_PARSEOP_CACHE_SIZE), BufferCount);
   
       /* Reset cache globals */
   
       AslGbl_ParseOpCount = 0;
       AslGbl_ParseOpCacheNext = NULL;
       AslGbl_ParseOpCacheLast = NULL;
       AslGbl_ParseTreeRoot = NULL;
   
       /*
        * Table Compiler - Field cache
        */
       BufferCount = 0;
       while (AslGbl_FieldCacheList)
       {
           Next = AslGbl_FieldCacheList->Next;
           ACPI_FREE (AslGbl_FieldCacheList);
           AslGbl_FieldCacheList = Next;
           BufferCount++;
       }
   
       DbgPrint (ASL_DEBUG_OUTPUT,
           "%u Fields, Buffer size: %u fields (%u bytes), %u Buffers\n",
           AslGbl_FieldCount, ASL_FIELD_CACHE_SIZE,
           ((UINT32) sizeof (DT_FIELD) * ASL_FIELD_CACHE_SIZE), BufferCount);
   
       /* Reset cache globals */
   
       AslGbl_FieldCount = 0;
       AslGbl_FieldCacheNext = NULL;
       AslGbl_FieldCacheLast = NULL;
   
       /*
        * Table Compiler - Subtable cache
        */
       BufferCount = 0;
       while (AslGbl_SubtableCacheList)
       {
           Next = AslGbl_SubtableCacheList->Next;
           ACPI_FREE (AslGbl_SubtableCacheList);
           AslGbl_SubtableCacheList = Next;
           BufferCount++;
       }
   
       DbgPrint (ASL_DEBUG_OUTPUT,
           "%u Subtables, Buffer size: %u subtables (%u bytes), %u Buffers\n",
           AslGbl_SubtableCount, ASL_SUBTABLE_CACHE_SIZE,
           ((UINT32) sizeof (DT_SUBTABLE) * ASL_SUBTABLE_CACHE_SIZE), BufferCount);
   
       /* Reset cache globals */
   
       AslGbl_SubtableCount = 0;
       AslGbl_SubtableCacheNext = NULL;
       AslGbl_SubtableCacheLast = NULL;
   }

Cache object: 44a9ccbd5232699d00a64636f0095994