Import ACPICA 20170929.vendor/acpica/20170929

1 files changed, 481 insertions, 0 deletions

diff --git a/source/compiler/aslcache.c b/source/compiler/aslcache.c
new file mode 100644
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+/******************************************************************************
+ *
+ * Module Name: aslcache -- Local cache support for iASL
+ *
+ *****************************************************************************/
+
+/******************************************************************************
+ *
+ * 1. Copyright Notice
+ *
+ * Some or all of this work - Copyright (c) 1999 - 2017, 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 "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;
+
+
+    if (Length > CacheSize)
+    {
+        CacheSize = Length;
+
+        if (Gbl_StringCacheList)
+        {
+            Cache = UtLocalCalloc (sizeof (Cache->Next) + CacheSize);
+
+            /* Link new cache buffer just following head of list */
+
+            Cache->Next = Gbl_StringCacheList->Next;
+            Gbl_StringCacheList->Next = Cache;
+
+            /* Leave cache management pointers alone as they pertain to head */
+
+            Gbl_StringCount++;
+            Gbl_StringSize += Length;
+
+            return (Cache->Buffer);
+        }
+    }
+
+    if ((Gbl_StringCacheNext + Length) >= Gbl_StringCacheLast)
+    {
+        /* Allocate a new buffer */
+
+        Cache = UtLocalCalloc (sizeof (Cache->Next) + CacheSize);
+
+        /* Link new cache buffer to head of list */
+
+        Cache->Next = Gbl_StringCacheList;
+        Gbl_StringCacheList = Cache;
+
+        /* Setup cache management pointers */
+
+        Gbl_StringCacheNext = Cache->Buffer;
+        Gbl_StringCacheLast = Gbl_StringCacheNext + CacheSize;
+    }
+
+    Gbl_StringCount++;
+    Gbl_StringSize += Length;
+
+    Buffer = Gbl_StringCacheNext;
+    Gbl_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 (Gbl_ParseOpCacheNext >= Gbl_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 = Gbl_ParseOpCacheList;
+        Gbl_ParseOpCacheList = Cache;
+
+        /* Setup cache management pointers */
+
+        Gbl_ParseOpCacheNext = ACPI_CAST_PTR (ACPI_PARSE_OBJECT, Cache->Buffer);
+        Gbl_ParseOpCacheLast = Gbl_ParseOpCacheNext + ASL_PARSEOP_CACHE_SIZE;
+    }
+
+    Gbl_ParseOpCount++;
+    return (Gbl_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 (Gbl_SubtableCacheNext >= Gbl_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 = Gbl_SubtableCacheList;
+        Gbl_SubtableCacheList = Cache;
+
+        /* Setup cache management pointers */
+
+        Gbl_SubtableCacheNext = ACPI_CAST_PTR (DT_SUBTABLE, Cache->Buffer);
+        Gbl_SubtableCacheLast = Gbl_SubtableCacheNext + ASL_SUBTABLE_CACHE_SIZE;
+    }
+
+    Gbl_SubtableCount++;
+    return (Gbl_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 (Gbl_FieldCacheNext >= Gbl_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 = Gbl_FieldCacheList;
+        Gbl_FieldCacheList = Cache;
+
+        /* Setup cache management pointers */
+
+        Gbl_FieldCacheNext = ACPI_CAST_PTR (DT_FIELD, Cache->Buffer);
+        Gbl_FieldCacheLast = Gbl_FieldCacheNext + ASL_FIELD_CACHE_SIZE;
+    }
+
+    Gbl_FieldCount++;
+    return (Gbl_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 (Gbl_StringCacheList)
+    {
+        Next = Gbl_StringCacheList->Next;
+        ACPI_FREE (Gbl_StringCacheList);
+        Gbl_StringCacheList = Next;
+        BufferCount++;
+    }
+
+    DbgPrint (ASL_DEBUG_OUTPUT,
+        "%u Strings (%u bytes), Buffer size: %u bytes, %u Buffers\n",
+        Gbl_StringCount, Gbl_StringSize, ASL_STRING_CACHE_SIZE, BufferCount);
+
+    /* Reset cache globals */
+
+    Gbl_StringSize = 0;
+    Gbl_StringCount = 0;
+    Gbl_StringCacheNext = NULL;
+    Gbl_StringCacheLast = NULL;
+
+
+    /*
+     * Parse Op cache
+     */
+    BufferCount = 0;
+    while (Gbl_ParseOpCacheList)
+    {
+        Next = Gbl_ParseOpCacheList->Next;
+        ACPI_FREE (Gbl_ParseOpCacheList);
+        Gbl_ParseOpCacheList = Next;
+        BufferCount++;
+    }
+
+    DbgPrint (ASL_DEBUG_OUTPUT,
+        "%u ParseOps, Buffer size: %u ops (%u bytes), %u Buffers\n",
+        Gbl_ParseOpCount, ASL_PARSEOP_CACHE_SIZE,
+        (sizeof (ACPI_PARSE_OBJECT) * ASL_PARSEOP_CACHE_SIZE), BufferCount);
+
+    /* Reset cache globals */
+
+    Gbl_ParseOpCount = 0;
+    Gbl_ParseOpCacheNext = NULL;
+    Gbl_ParseOpCacheLast = NULL;
+    Gbl_ParseTreeRoot = NULL;
+
+
+    /*
+     * Table Compiler - Field cache
+     */
+    BufferCount = 0;
+    while (Gbl_FieldCacheList)
+    {
+        Next = Gbl_FieldCacheList->Next;
+        ACPI_FREE (Gbl_FieldCacheList);
+        Gbl_FieldCacheList = Next;
+        BufferCount++;
+    }
+
+    DbgPrint (ASL_DEBUG_OUTPUT,
+        "%u Fields, Buffer size: %u fields (%u bytes), %u Buffers\n",
+        Gbl_FieldCount, ASL_FIELD_CACHE_SIZE,
+        (sizeof (DT_FIELD) * ASL_FIELD_CACHE_SIZE), BufferCount);
+
+    /* Reset cache globals */
+
+    Gbl_FieldCount = 0;
+    Gbl_FieldCacheNext = NULL;
+    Gbl_FieldCacheLast = NULL;
+
+
+    /*
+     * Table Compiler - Subtable cache
+     */
+    BufferCount = 0;
+    while (Gbl_SubtableCacheList)
+    {
+        Next = Gbl_SubtableCacheList->Next;
+        ACPI_FREE (Gbl_SubtableCacheList);
+        Gbl_SubtableCacheList = Next;
+        BufferCount++;
+    }
+
+    DbgPrint (ASL_DEBUG_OUTPUT,
+        "%u Subtables, Buffer size: %u subtables (%u bytes), %u Buffers\n",
+        Gbl_SubtableCount, ASL_SUBTABLE_CACHE_SIZE,
+        (sizeof (DT_SUBTABLE) * ASL_SUBTABLE_CACHE_SIZE), BufferCount);
+
+    /* Reset cache globals */
+
+    Gbl_SubtableCount = 0;
+    Gbl_SubtableCacheNext = NULL;
+    Gbl_SubtableCacheLast = NULL;
+}