+++ /dev/null
-/******************************************************************************
- *
- * Module Name: utalloc - local memory allocation routines
- *
- *****************************************************************************/
-
-/******************************************************************************
- *
- * 1. Copyright Notice
- *
- * Some or all of this work - Copyright (c) 1999 - 2009, 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 __UTALLOC_C__
-
-#include "acpi.h"
-#include "accommon.h"
-#include "acdebug.h"
-
-#define _COMPONENT ACPI_UTILITIES
- ACPI_MODULE_NAME ("utalloc")
-
-
-/*******************************************************************************
- *
- * FUNCTION: AcpiUtCreateCaches
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create all local caches
- *
- ******************************************************************************/
-
-ACPI_STATUS
-AcpiUtCreateCaches (
- void)
-{
- ACPI_STATUS Status;
-
-
- /* Object Caches, for frequently used objects */
-
- Status = AcpiOsCreateCache ("Acpi-Namespace", sizeof (ACPI_NAMESPACE_NODE),
- ACPI_MAX_NAMESPACE_CACHE_DEPTH, &AcpiGbl_NamespaceCache);
- if (ACPI_FAILURE (Status))
- {
- return (Status);
- }
-
- Status = AcpiOsCreateCache ("Acpi-State", sizeof (ACPI_GENERIC_STATE),
- ACPI_MAX_STATE_CACHE_DEPTH, &AcpiGbl_StateCache);
- if (ACPI_FAILURE (Status))
- {
- return (Status);
- }
-
- Status = AcpiOsCreateCache ("Acpi-Parse", sizeof (ACPI_PARSE_OBJ_COMMON),
- ACPI_MAX_PARSE_CACHE_DEPTH, &AcpiGbl_PsNodeCache);
- if (ACPI_FAILURE (Status))
- {
- return (Status);
- }
-
- Status = AcpiOsCreateCache ("Acpi-ParseExt", sizeof (ACPI_PARSE_OBJ_NAMED),
- ACPI_MAX_EXTPARSE_CACHE_DEPTH, &AcpiGbl_PsNodeExtCache);
- if (ACPI_FAILURE (Status))
- {
- return (Status);
- }
-
- Status = AcpiOsCreateCache ("Acpi-Operand", sizeof (ACPI_OPERAND_OBJECT),
- ACPI_MAX_OBJECT_CACHE_DEPTH, &AcpiGbl_OperandCache);
- if (ACPI_FAILURE (Status))
- {
- return (Status);
- }
-
-
-#ifdef ACPI_DBG_TRACK_ALLOCATIONS
-
- /* Memory allocation lists */
-
- Status = AcpiUtCreateList ("Acpi-Global", 0,
- &AcpiGbl_GlobalList);
- if (ACPI_FAILURE (Status))
- {
- return (Status);
- }
-
- Status = AcpiUtCreateList ("Acpi-Namespace", sizeof (ACPI_NAMESPACE_NODE),
- &AcpiGbl_NsNodeList);
- if (ACPI_FAILURE (Status))
- {
- return (Status);
- }
-#endif
-
- return (AE_OK);
-}
-
-
-/*******************************************************************************
- *
- * FUNCTION: AcpiUtDeleteCaches
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Purge and delete all local caches
- *
- ******************************************************************************/
-
-ACPI_STATUS
-AcpiUtDeleteCaches (
- void)
-{
-#ifdef ACPI_DBG_TRACK_ALLOCATIONS
- char Buffer[7];
-
- if (AcpiGbl_DisplayFinalMemStats)
- {
- ACPI_STRCPY (Buffer, "MEMORY");
- (void) AcpiDbDisplayStatistics (Buffer);
- }
-#endif
-
- (void) AcpiOsDeleteCache (AcpiGbl_NamespaceCache);
- AcpiGbl_NamespaceCache = NULL;
-
- (void) AcpiOsDeleteCache (AcpiGbl_StateCache);
- AcpiGbl_StateCache = NULL;
-
- (void) AcpiOsDeleteCache (AcpiGbl_OperandCache);
- AcpiGbl_OperandCache = NULL;
-
- (void) AcpiOsDeleteCache (AcpiGbl_PsNodeCache);
- AcpiGbl_PsNodeCache = NULL;
-
- (void) AcpiOsDeleteCache (AcpiGbl_PsNodeExtCache);
- AcpiGbl_PsNodeExtCache = NULL;
-
-
-#ifdef ACPI_DBG_TRACK_ALLOCATIONS
-
- /* Debug only - display leftover memory allocation, if any */
-
- AcpiUtDumpAllocations (ACPI_UINT32_MAX, NULL);
-
- /* Free memory lists */
-
- AcpiOsFree (AcpiGbl_GlobalList);
- AcpiGbl_GlobalList = NULL;
-
- AcpiOsFree (AcpiGbl_NsNodeList);
- AcpiGbl_NsNodeList = NULL;
-#endif
-
- return (AE_OK);
-}
-
-
-/*******************************************************************************
- *
- * FUNCTION: AcpiUtValidateBuffer
- *
- * PARAMETERS: Buffer - Buffer descriptor to be validated
- *
- * RETURN: Status
- *
- * DESCRIPTION: Perform parameter validation checks on an ACPI_BUFFER
- *
- ******************************************************************************/
-
-ACPI_STATUS
-AcpiUtValidateBuffer (
- ACPI_BUFFER *Buffer)
-{
-
- /* Obviously, the structure pointer must be valid */
-
- if (!Buffer)
- {
- return (AE_BAD_PARAMETER);
- }
-
- /* Special semantics for the length */
-
- if ((Buffer->Length == ACPI_NO_BUFFER) ||
- (Buffer->Length == ACPI_ALLOCATE_BUFFER) ||
- (Buffer->Length == ACPI_ALLOCATE_LOCAL_BUFFER))
- {
- return (AE_OK);
- }
-
- /* Length is valid, the buffer pointer must be also */
-
- if (!Buffer->Pointer)
- {
- return (AE_BAD_PARAMETER);
- }
-
- return (AE_OK);
-}
-
-
-/*******************************************************************************
- *
- * FUNCTION: AcpiUtInitializeBuffer
- *
- * PARAMETERS: Buffer - Buffer to be validated
- * RequiredLength - Length needed
- *
- * RETURN: Status
- *
- * DESCRIPTION: Validate that the buffer is of the required length or
- * allocate a new buffer. Returned buffer is always zeroed.
- *
- ******************************************************************************/
-
-ACPI_STATUS
-AcpiUtInitializeBuffer (
- ACPI_BUFFER *Buffer,
- ACPI_SIZE RequiredLength)
-{
- ACPI_SIZE InputBufferLength;
-
-
- /* Parameter validation */
-
- if (!Buffer || !RequiredLength)
- {
- return (AE_BAD_PARAMETER);
- }
-
- /*
- * Buffer->Length is used as both an input and output parameter. Get the
- * input actual length and set the output required buffer length.
- */
- InputBufferLength = Buffer->Length;
- Buffer->Length = RequiredLength;
-
- /*
- * The input buffer length contains the actual buffer length, or the type
- * of buffer to be allocated by this routine.
- */
- switch (InputBufferLength)
- {
- case ACPI_NO_BUFFER:
-
- /* Return the exception (and the required buffer length) */
-
- return (AE_BUFFER_OVERFLOW);
-
- case ACPI_ALLOCATE_BUFFER:
-
- /* Allocate a new buffer */
-
- Buffer->Pointer = AcpiOsAllocate (RequiredLength);
- break;
-
- case ACPI_ALLOCATE_LOCAL_BUFFER:
-
- /* Allocate a new buffer with local interface to allow tracking */
-
- Buffer->Pointer = ACPI_ALLOCATE (RequiredLength);
- break;
-
- default:
-
- /* Existing buffer: Validate the size of the buffer */
-
- if (InputBufferLength < RequiredLength)
- {
- return (AE_BUFFER_OVERFLOW);
- }
- break;
- }
-
- /* Validate allocation from above or input buffer pointer */
-
- if (!Buffer->Pointer)
- {
- return (AE_NO_MEMORY);
- }
-
- /* Have a valid buffer, clear it */
-
- ACPI_MEMSET (Buffer->Pointer, 0, RequiredLength);
- return (AE_OK);
-}
-
-
-/*******************************************************************************
- *
- * FUNCTION: AcpiUtAllocate
- *
- * PARAMETERS: Size - Size of the allocation
- * Component - Component type of caller
- * Module - Source file name of caller
- * Line - Line number of caller
- *
- * RETURN: Address of the allocated memory on success, NULL on failure.
- *
- * DESCRIPTION: Subsystem equivalent of malloc.
- *
- ******************************************************************************/
-
-void *
-AcpiUtAllocate (
- ACPI_SIZE Size,
- UINT32 Component,
- const char *Module,
- UINT32 Line)
-{
- void *Allocation;
-
-
- ACPI_FUNCTION_TRACE_U32 (UtAllocate, Size);
-
-
- /* Check for an inadvertent size of zero bytes */
-
- if (!Size)
- {
- ACPI_WARNING ((Module, Line,
- "Attempt to allocate zero bytes, allocating 1 byte"));
- Size = 1;
- }
-
- Allocation = AcpiOsAllocate (Size);
- if (!Allocation)
- {
- /* Report allocation error */
-
- ACPI_WARNING ((Module, Line,
- "Could not allocate size %X", (UINT32) Size));
-
- return_PTR (NULL);
- }
-
- return_PTR (Allocation);
-}
-
-
-/*******************************************************************************
- *
- * FUNCTION: AcpiUtAllocateZeroed
- *
- * PARAMETERS: Size - Size of the allocation
- * Component - Component type of caller
- * Module - Source file name of caller
- * Line - Line number of caller
- *
- * RETURN: Address of the allocated memory on success, NULL on failure.
- *
- * DESCRIPTION: Subsystem equivalent of calloc. Allocate and zero memory.
- *
- ******************************************************************************/
-
-void *
-AcpiUtAllocateZeroed (
- ACPI_SIZE Size,
- UINT32 Component,
- const char *Module,
- UINT32 Line)
-{
- void *Allocation;
-
-
- ACPI_FUNCTION_ENTRY ();
-
-
- Allocation = AcpiUtAllocate (Size, Component, Module, Line);
- if (Allocation)
- {
- /* Clear the memory block */
-
- ACPI_MEMSET (Allocation, 0, Size);
- }
-
- return (Allocation);
-}
-
projects / l4.git / blobdiff