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Diffstat (limited to 'sys/contrib/dev/acpica/utilities/utalloc.c')
| -rw-r--r-- | sys/contrib/dev/acpica/utilities/utalloc.c | 488 |
1 files changed, 488 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/utilities/utalloc.c b/sys/contrib/dev/acpica/utilities/utalloc.c new file mode 100644 index 0000000..aff2e1c --- /dev/null +++ b/sys/contrib/dev/acpica/utilities/utalloc.c @@ -0,0 +1,488 @@ +/****************************************************************************** + * + * 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 <contrib/dev/acpica/include/acpi.h> +#include <contrib/dev/acpica/include/accommon.h> +#include <contrib/dev/acpica/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); +} + |
