freebsd-dev/sys/contrib/dev/acpica/utalloc.c

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/******************************************************************************
*
* Module Name: utalloc - local memory allocation routines
* $Revision: 93 $
*
*****************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999, 2000, 2001, 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 "acparser.h"
#include "acinterp.h"
#include "acnamesp.h"
#include "acglobal.h"
#define _COMPONENT ACPI_UTILITIES
MODULE_NAME ("utalloc")
#ifdef ACPI_DBG_TRACK_ALLOCATIONS
/*
* This module is used for tracking memory leaks in the subsystem, and it
* gets compiled out when the ACPI_DBG_TRACK_ALLOCATIONS is not set.
*
* Each memory allocation is tracked via a doubly linked list. Each
* element contains the caller's component, module name, function name, and
* line number. AcpiUtAllocate and AcpiUtCallocate call
* AcpiUtAddElementToAllocList to add an element to the list; deletion
* occurs in the body of AcpiUtFree.
*/
/*******************************************************************************
*
* FUNCTION: AcpiUtSearchAllocList
*
* PARAMETERS: Address - Address of allocated memory
*
* RETURN: A list element if found; NULL otherwise.
*
* DESCRIPTION: Searches for an element in the global allocation tracking list.
*
******************************************************************************/
ACPI_ALLOCATION_INFO *
AcpiUtSearchAllocList (
void *Address)
{
ACPI_ALLOCATION_INFO *Element = AcpiGbl_HeadAllocPtr;
/* Search for the address. */
while (Element)
{
if (Element->Address == Address)
{
return (Element);
}
Element = Element->Next;
}
return (NULL);
}
/*******************************************************************************
*
* FUNCTION: AcpiUtAddElementToAllocList
*
* PARAMETERS: Address - Address of allocated memory
* Size - Size of the allocation
* AllocType - MEM_MALLOC or MEM_CALLOC
* Component - Component type of caller
* Module - Source file name of caller
* Line - Line number of caller
*
* RETURN: None.
*
* DESCRIPTION: Inserts an element into the global allocation tracking list.
*
******************************************************************************/
ACPI_STATUS
AcpiUtAddElementToAllocList (
void *Address,
UINT32 Size,
UINT8 AllocType,
UINT32 Component,
NATIVE_CHAR *Module,
UINT32 Line)
{
ACPI_ALLOCATION_INFO *Element;
ACPI_STATUS Status = AE_OK;
FUNCTION_TRACE_PTR ("UtAddElementToAllocList", Address);
AcpiUtAcquireMutex (ACPI_MTX_MEMORY);
/* Keep track of the running total of all allocations. */
AcpiGbl_CurrentAllocCount++;
AcpiGbl_RunningAllocCount++;
if (AcpiGbl_MaxConcurrentAllocCount < AcpiGbl_CurrentAllocCount)
{
AcpiGbl_MaxConcurrentAllocCount = AcpiGbl_CurrentAllocCount;
}
AcpiGbl_CurrentAllocSize += Size;
AcpiGbl_RunningAllocSize += Size;
if (AcpiGbl_MaxConcurrentAllocSize < AcpiGbl_CurrentAllocSize)
{
AcpiGbl_MaxConcurrentAllocSize = AcpiGbl_CurrentAllocSize;
}
/* If the head pointer is null, create the first element and fill it in. */
if (NULL == AcpiGbl_HeadAllocPtr)
{
AcpiGbl_HeadAllocPtr = AcpiOsCallocate (sizeof (ACPI_ALLOCATION_INFO));
if (!AcpiGbl_HeadAllocPtr)
{
DEBUG_PRINTP (ACPI_ERROR, ("Could not allocate mem info block\n"));
Status = AE_NO_MEMORY;
goto UnlockAndExit;
}
AcpiGbl_TailAllocPtr = AcpiGbl_HeadAllocPtr;
}
else
{
AcpiGbl_TailAllocPtr->Next = AcpiOsCallocate (sizeof (ACPI_ALLOCATION_INFO));
if (!AcpiGbl_TailAllocPtr->Next)
{
DEBUG_PRINTP (ACPI_ERROR, ("Could not allocate mem info block\n"));
Status = AE_NO_MEMORY;
goto UnlockAndExit;
}
/* error check */
AcpiGbl_TailAllocPtr->Next->Previous = AcpiGbl_TailAllocPtr;
AcpiGbl_TailAllocPtr = AcpiGbl_TailAllocPtr->Next;
}
/*
* Search list for this address to make sure it is not already on the list.
* This will catch several kinds of problems.
*/
Element = AcpiUtSearchAllocList (Address);
if (Element)
{
REPORT_ERROR (("UtAddElementToAllocList: Address already present in list! (%p)\n",
Address));
DEBUG_PRINTP (ACPI_ERROR, ("Element %p Address %p\n", Element, Address));
BREAKPOINT3;
}
/* Fill in the instance data. */
AcpiGbl_TailAllocPtr->Address = Address;
AcpiGbl_TailAllocPtr->Size = Size;
AcpiGbl_TailAllocPtr->AllocType = AllocType;
AcpiGbl_TailAllocPtr->Component = Component;
AcpiGbl_TailAllocPtr->Line = Line;
STRNCPY (AcpiGbl_TailAllocPtr->Module, Module, MAX_MODULE_NAME);
UnlockAndExit:
AcpiUtReleaseMutex (ACPI_MTX_MEMORY);
return_ACPI_STATUS (Status);
}
/*******************************************************************************
*
* FUNCTION: AcpiUtDeleteElementFromAllocList
*
* PARAMETERS: Address - Address of allocated memory
* Component - Component type of caller
* Module - Source file name of caller
* Line - Line number of caller
*
* RETURN:
*
* DESCRIPTION: Deletes an element from the global allocation tracking list.
*
******************************************************************************/
void
AcpiUtDeleteElementFromAllocList (
void *Address,
UINT32 Component,
NATIVE_CHAR *Module,
UINT32 Line)
{
ACPI_ALLOCATION_INFO *Element;
UINT32 *DwordPtr;
UINT32 DwordLen;
UINT32 Size;
UINT32 i;
FUNCTION_TRACE ("UtDeleteElementFromAllocList");
if (NULL == AcpiGbl_HeadAllocPtr)
{
/* Boy we got problems. */
_REPORT_ERROR (Module, Line, Component,
("UtDeleteElementFromAllocList: Empty allocation list, nothing to free!\n"));
return_VOID;
}
AcpiUtAcquireMutex (ACPI_MTX_MEMORY);
/* Keep track of the amount of memory allocated. */
Size = 0;
AcpiGbl_CurrentAllocCount--;
if (AcpiGbl_HeadAllocPtr == AcpiGbl_TailAllocPtr)
{
if (Address != AcpiGbl_HeadAllocPtr->Address)
{
_REPORT_ERROR (Module, Line, Component,
("UtDeleteElementFromAllocList: Deleting non-allocated memory\n"));
goto Cleanup;
}
Size = AcpiGbl_HeadAllocPtr->Size;
AcpiOsFree (AcpiGbl_HeadAllocPtr);
AcpiGbl_HeadAllocPtr = NULL;
AcpiGbl_TailAllocPtr = NULL;
DEBUG_PRINTP (TRACE_ALLOCATIONS,
("Allocation list deleted. There are no outstanding allocations\n"));
goto Cleanup;
}
/* Search list for this address */
Element = AcpiUtSearchAllocList (Address);
if (Element)
{
/* cases: head, tail, other */
if (Element == AcpiGbl_HeadAllocPtr)
{
Element->Next->Previous = NULL;
AcpiGbl_HeadAllocPtr = Element->Next;
}
else
{
if (Element == AcpiGbl_TailAllocPtr)
{
Element->Previous->Next = NULL;
AcpiGbl_TailAllocPtr = Element->Previous;
}
else
{
Element->Previous->Next = Element->Next;
Element->Next->Previous = Element->Previous;
}
}
/* Mark the segment as deleted */
if (Element->Size >= 4)
{
DwordLen = DIV_4 (Element->Size);
DwordPtr = (UINT32 *) Element->Address;
for (i = 0; i < DwordLen; i++)
{
DwordPtr[i] = 0x00DEAD00;
}
/* Set obj type, desc, and ref count fields to all ones */
DwordPtr[0] = ACPI_UINT32_MAX;
if (Element->Size >= 8)
{
DwordPtr[1] = ACPI_UINT32_MAX;
}
}
Size = Element->Size;
MEMSET (Element, 0xEA, sizeof (ACPI_ALLOCATION_INFO));
if (Size == sizeof (ACPI_OPERAND_OBJECT))
{
DEBUG_PRINTP (TRACE_ALLOCATIONS,
("Freeing size %X (ACPI_OPERAND_OBJECT)\n", Size));
}
else
{
DEBUG_PRINTP (TRACE_ALLOCATIONS, ("Freeing size %X\n", Size));
}
AcpiOsFree (Element);
}
else
{
_REPORT_ERROR (Module, Line, Component,
("AcpiUtFree: Entry not found in list\n"));
DEBUG_PRINTP (ACPI_ERROR, ("Entry %p was not found in allocation list\n",
Address));
AcpiUtReleaseMutex (ACPI_MTX_MEMORY);
return_VOID;
}
Cleanup:
AcpiGbl_CurrentAllocSize -= Size;
AcpiUtReleaseMutex (ACPI_MTX_MEMORY);
return_VOID;
}
/*******************************************************************************
*
* FUNCTION: AcpiUtDumpAllocationInfo
*
* PARAMETERS:
*
* RETURN: None
*
* DESCRIPTION: Print some info about the outstanding allocations.
*
******************************************************************************/
void
AcpiUtDumpAllocationInfo (
void)
{
FUNCTION_TRACE ("UtDumpAllocationInfo");
DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
("%30s: %4d (%3d Kb)\n", "Current allocations",
AcpiGbl_CurrentAllocCount,
ROUND_UP_TO_1K (AcpiGbl_CurrentAllocSize)));
DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
("%30s: %4d (%3d Kb)\n", "Max concurrent allocations",
AcpiGbl_MaxConcurrentAllocCount,
ROUND_UP_TO_1K (AcpiGbl_MaxConcurrentAllocSize)));
DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
("%30s: %4d (%3d Kb)\n", "Current Internal objects",
AcpiGbl_CurrentObjectCount,
ROUND_UP_TO_1K (AcpiGbl_CurrentObjectSize)));
DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
("%30s: %4d (%3d Kb)\n", "Max internal objects",
AcpiGbl_MaxConcurrentObjectCount,
ROUND_UP_TO_1K (AcpiGbl_MaxConcurrentObjectSize)));
DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
("%30s: %4d (%3d Kb)\n", "Current Nodes",
AcpiGbl_CurrentNodeCount,
ROUND_UP_TO_1K (AcpiGbl_CurrentNodeSize)));
DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
("%30s: %4d (%3d Kb)\n", "Max Nodes",
AcpiGbl_MaxConcurrentNodeCount,
ROUND_UP_TO_1K ((AcpiGbl_MaxConcurrentNodeCount * sizeof (ACPI_NAMESPACE_NODE)))));
DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
("%30s: %4d (%3d Kb)\n", "Total (all) internal objects",
AcpiGbl_RunningObjectCount,
ROUND_UP_TO_1K (AcpiGbl_RunningObjectSize)));
DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
("%30s: %4d (%3d Kb)\n", "Total (all) allocations",
AcpiGbl_RunningAllocCount,
ROUND_UP_TO_1K (AcpiGbl_RunningAllocSize)));
return_VOID;
}
/*******************************************************************************
*
* FUNCTION: AcpiUtDumpCurrentAllocations
*
* PARAMETERS: Component - Component(s) to dump info for.
* Module - Module to dump info for. NULL means all.
*
* RETURN: None
*
* DESCRIPTION: Print a list of all outstanding allocations.
*
******************************************************************************/
void
AcpiUtDumpCurrentAllocations (
UINT32 Component,
NATIVE_CHAR *Module)
{
ACPI_ALLOCATION_INFO *Element = AcpiGbl_HeadAllocPtr;
UINT32 i;
FUNCTION_TRACE ("UtDumpCurrentAllocations");
if (Element == NULL)
{
DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
("No outstanding allocations.\n"));
return_VOID;
}
/*
* Walk the allocation list.
*/
AcpiUtAcquireMutex (ACPI_MTX_MEMORY);
DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
("Outstanding allocations:\n"));
for (i = 1; ; i++) /* Just a counter */
{
if ((Element->Component & Component) &&
((Module == NULL) || (0 == STRCMP (Module, Element->Module))))
{
DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
("%p Len %04lX %9.9s-%ld",
Element->Address, Element->Size, Element->Module,
Element->Line));
/* Most of the elements will be internal objects. */
switch (((ACPI_OPERAND_OBJECT *)
(Element->Address))->Common.DataType)
{
case ACPI_DESC_TYPE_INTERNAL:
DEBUG_PRINT_RAW (TRACE_ALLOCATIONS | TRACE_TABLES,
(" ObjType %s",
AcpiUtGetTypeName (((ACPI_OPERAND_OBJECT *)(Element->Address))->Common.Type)));
break;
case ACPI_DESC_TYPE_PARSER:
DEBUG_PRINT_RAW (TRACE_ALLOCATIONS | TRACE_TABLES,
(" ParseObj Opcode %04X",
((ACPI_PARSE_OBJECT *)(Element->Address))->Opcode));
break;
case ACPI_DESC_TYPE_NAMED:
DEBUG_PRINT_RAW (TRACE_ALLOCATIONS | TRACE_TABLES,
(" Node %4.4s",
&((ACPI_NAMESPACE_NODE *)(Element->Address))->Name));
break;
case ACPI_DESC_TYPE_STATE:
DEBUG_PRINT_RAW (TRACE_ALLOCATIONS | TRACE_TABLES,
(" StateObj"));
break;
}
DEBUG_PRINT_RAW (TRACE_ALLOCATIONS | TRACE_TABLES, ("\n"));
}
if (Element->Next == NULL)
{
break;
}
Element = Element->Next;
}
AcpiUtReleaseMutex (ACPI_MTX_MEMORY);
DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES,
("Total number of unfreed allocations = %d(%X)\n", i,i));
return_VOID;
}
/*******************************************************************************
*
* 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: The subsystem's equivalent of malloc.
*
******************************************************************************/
void *
AcpiUtAllocate (
UINT32 Size,
UINT32 Component,
NATIVE_CHAR *Module,
UINT32 Line)
{
void *Address = NULL;
FUNCTION_TRACE_U32 ("AcpiUtAllocate", Size);
/* Check for an inadvertent size of zero bytes */
if (!Size)
{
_REPORT_ERROR (Module, Line, Component,
("UtAllocate: Attempt to allocate zero bytes\n"));
Size = 1;
}
Address = AcpiOsAllocate (Size);
if (!Address)
{
/* Report allocation error */
_REPORT_ERROR (Module, Line, Component,
("UtAllocate: Could not allocate size %X\n", Size));
return_PTR (NULL);
}
if (ACPI_FAILURE (AcpiUtAddElementToAllocList (Address, Size, MEM_MALLOC,
Component, Module, Line)))
{
AcpiOsFree (Address);
return_PTR (NULL);
}
DEBUG_PRINTP (TRACE_ALLOCATIONS, ("%p Size %X\n", Address, Size));
return_PTR (Address);
}
/*******************************************************************************
*
* FUNCTION: AcpiUtCallocate
*
* 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.
*
******************************************************************************/
void *
AcpiUtCallocate (
UINT32 Size,
UINT32 Component,
NATIVE_CHAR *Module,
UINT32 Line)
{
void *Address = NULL;
FUNCTION_TRACE_U32 ("AcpiUtCallocate", Size);
/* Check for an inadvertent size of zero bytes */
if (!Size)
{
_REPORT_ERROR (Module, Line, Component,
("UtCallocate: Attempt to allocate zero bytes\n"));
return_PTR (NULL);
}
Address = AcpiOsCallocate (Size);
if (!Address)
{
/* Report allocation error */
_REPORT_ERROR (Module, Line, Component,
("UtCallocate: Could not allocate size %X\n", Size));
return_PTR (NULL);
}
if (ACPI_FAILURE (AcpiUtAddElementToAllocList (Address, Size, MEM_CALLOC,
Component,Module, Line)))
{
AcpiOsFree (Address);
return_PTR (NULL);
}
DEBUG_PRINTP (TRACE_ALLOCATIONS, ("%p Size %X\n", Address, Size));
return_PTR (Address);
}
/*******************************************************************************
*
* FUNCTION: AcpiUtFree
*
* PARAMETERS: Address - Address of the memory to deallocate
* Component - Component type of caller
* Module - Source file name of caller
* Line - Line number of caller
*
* RETURN: None
*
* DESCRIPTION: Frees the memory at Address
*
******************************************************************************/
void
AcpiUtFree (
void *Address,
UINT32 Component,
NATIVE_CHAR *Module,
UINT32 Line)
{
FUNCTION_TRACE_PTR ("AcpiUtFree", Address);
if (NULL == Address)
{
_REPORT_ERROR (Module, Line, Component,
("AcpiUtFree: Trying to delete a NULL address\n"));
return_VOID;
}
AcpiUtDeleteElementFromAllocList (Address, Component, Module, Line);
AcpiOsFree (Address);
DEBUG_PRINTP (TRACE_ALLOCATIONS, ("%p freed\n", Address));
return_VOID;
}
#endif /* #ifdef ACPI_DBG_TRACK_ALLOCATIONS */