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Diffstat (limited to 'sys/contrib/dev/acpica/utdelete.c')
| -rw-r--r-- | sys/contrib/dev/acpica/utdelete.c | 756 |
1 files changed, 0 insertions, 756 deletions
diff --git a/sys/contrib/dev/acpica/utdelete.c b/sys/contrib/dev/acpica/utdelete.c deleted file mode 100644 index 890973eccb99..000000000000 --- a/sys/contrib/dev/acpica/utdelete.c +++ /dev/null @@ -1,756 +0,0 @@ -/******************************************************************************* - * - * Module Name: utdelete - object deletion and reference count utilities - * $Revision: 95 $ - * - ******************************************************************************/ - -/****************************************************************************** - * - * 1. Copyright Notice - * - * Some or all of this work - Copyright (c) 1999 - 2003, 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 __UTDELETE_C__ - -#include "acpi.h" -#include "acinterp.h" -#include "acnamesp.h" - -#define _COMPONENT ACPI_UTILITIES - ACPI_MODULE_NAME ("utdelete") - - -/******************************************************************************* - * - * FUNCTION: AcpiUtDeleteInternalObj - * - * PARAMETERS: *Object - Pointer to the list to be deleted - * - * RETURN: None - * - * DESCRIPTION: Low level object deletion, after reference counts have been - * updated (All reference counts, including sub-objects!) - * - ******************************************************************************/ - -void -AcpiUtDeleteInternalObj ( - ACPI_OPERAND_OBJECT *Object) -{ - void *ObjPointer = NULL; - ACPI_OPERAND_OBJECT *HandlerDesc; - ACPI_OPERAND_OBJECT *SecondDesc; - - - ACPI_FUNCTION_TRACE_PTR ("UtDeleteInternalObj", Object); - - - if (!Object) - { - return_VOID; - } - - /* - * Must delete or free any pointers within the object that are not - * actual ACPI objects (for example, a raw buffer pointer). - */ - switch (ACPI_GET_OBJECT_TYPE (Object)) - { - case ACPI_TYPE_STRING: - - ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "**** String %p, ptr %p\n", - Object, Object->String.Pointer)); - - /* Free the actual string buffer */ - - if (!(Object->Common.Flags & AOPOBJ_STATIC_POINTER)) - { - /* But only if it is NOT a pointer into an ACPI table */ - - ObjPointer = Object->String.Pointer; - } - break; - - - case ACPI_TYPE_BUFFER: - - ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "**** Buffer %p, ptr %p\n", - Object, Object->Buffer.Pointer)); - - /* Free the actual buffer */ - - if (!(Object->Common.Flags & AOPOBJ_STATIC_POINTER)) - { - /* But only if it is NOT a pointer into an ACPI table */ - - ObjPointer = Object->Buffer.Pointer; - } - break; - - - case ACPI_TYPE_PACKAGE: - - ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, " **** Package of count %X\n", - Object->Package.Count)); - - /* - * Elements of the package are not handled here, they are deleted - * separately - */ - - /* Free the (variable length) element pointer array */ - - ObjPointer = Object->Package.Elements; - break; - - - case ACPI_TYPE_MUTEX: - - ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "***** Mutex %p, Semaphore %p\n", - Object, Object->Mutex.Semaphore)); - - AcpiExUnlinkMutex (Object); - (void) AcpiOsDeleteSemaphore (Object->Mutex.Semaphore); - break; - - - case ACPI_TYPE_EVENT: - - ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "***** Event %p, Semaphore %p\n", - Object, Object->Event.Semaphore)); - - (void) AcpiOsDeleteSemaphore (Object->Event.Semaphore); - Object->Event.Semaphore = NULL; - break; - - - case ACPI_TYPE_METHOD: - - ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "***** Method %p\n", Object)); - - /* Delete the method semaphore if it exists */ - - if (Object->Method.Semaphore) - { - (void) AcpiOsDeleteSemaphore (Object->Method.Semaphore); - Object->Method.Semaphore = NULL; - } - break; - - - case ACPI_TYPE_REGION: - - ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "***** Region %p\n", Object)); - - SecondDesc = AcpiNsGetSecondaryObject (Object); - if (SecondDesc) - { - /* - * Free the RegionContext if and only if the handler is one of the - * default handlers -- and therefore, we created the context object - * locally, it was not created by an external caller. - */ - HandlerDesc = Object->Region.AddrHandler; - if ((HandlerDesc) && - (HandlerDesc->AddrHandler.Hflags == ACPI_ADDR_HANDLER_DEFAULT_INSTALLED)) - { - ObjPointer = SecondDesc->Extra.RegionContext; - } - - /* Now we can free the Extra object */ - - AcpiUtDeleteObjectDesc (SecondDesc); - } - break; - - - case ACPI_TYPE_BUFFER_FIELD: - - ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "***** Buffer Field %p\n", Object)); - - SecondDesc = AcpiNsGetSecondaryObject (Object); - if (SecondDesc) - { - AcpiUtDeleteObjectDesc (SecondDesc); - } - break; - - - default: - break; - } - - - /* Free any allocated memory (pointer within the object) found above */ - - if (ObjPointer) - { - ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "Deleting Object Subptr %p\n", - ObjPointer)); - ACPI_MEM_FREE (ObjPointer); - } - - /* Now the object can be safely deleted */ - - ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "Deleting Object %p [%s]\n", - Object, AcpiUtGetObjectTypeName (Object))); - - AcpiUtDeleteObjectDesc (Object); - return_VOID; -} - - -/******************************************************************************* - * - * FUNCTION: AcpiUtDeleteInternalObjectList - * - * PARAMETERS: *ObjList - Pointer to the list to be deleted - * - * RETURN: None - * - * DESCRIPTION: This function deletes an internal object list, including both - * simple objects and package objects - * - ******************************************************************************/ - -void -AcpiUtDeleteInternalObjectList ( - ACPI_OPERAND_OBJECT **ObjList) -{ - ACPI_OPERAND_OBJECT **InternalObj; - - - ACPI_FUNCTION_TRACE ("UtDeleteInternalObjectList"); - - - /* Walk the null-terminated internal list */ - - for (InternalObj = ObjList; *InternalObj; InternalObj++) - { - AcpiUtRemoveReference (*InternalObj); - } - - /* Free the combined parameter pointer list and object array */ - - ACPI_MEM_FREE (ObjList); - return_VOID; -} - - -/******************************************************************************* - * - * FUNCTION: AcpiUtUpdateRefCount - * - * PARAMETERS: *Object - Object whose ref count is to be updated - * Action - What to do - * - * RETURN: New ref count - * - * DESCRIPTION: Modify the ref count and return it. - * - ******************************************************************************/ - -static void -AcpiUtUpdateRefCount ( - ACPI_OPERAND_OBJECT *Object, - UINT32 Action) -{ - UINT16 Count; - UINT16 NewCount; - - - ACPI_FUNCTION_NAME ("UtUpdateRefCount"); - - - if (!Object) - { - return; - } - - Count = Object->Common.ReferenceCount; - NewCount = Count; - - /* - * Reference count action (increment, decrement, or force delete) - */ - switch (Action) - { - - case REF_INCREMENT: - - NewCount++; - Object->Common.ReferenceCount = NewCount; - - ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "Obj %p Refs=%X, [Incremented]\n", - Object, NewCount)); - break; - - - case REF_DECREMENT: - - if (Count < 1) - { - ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "Obj %p Refs=%X, can't decrement! (Set to 0)\n", - Object, NewCount)); - - NewCount = 0; - } - else - { - NewCount--; - - ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "Obj %p Refs=%X, [Decremented]\n", - Object, NewCount)); - } - - if (ACPI_GET_OBJECT_TYPE (Object) == ACPI_TYPE_METHOD) - { - ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "Method Obj %p Refs=%X, [Decremented]\n", - Object, NewCount)); - } - - Object->Common.ReferenceCount = NewCount; - if (NewCount == 0) - { - AcpiUtDeleteInternalObj (Object); - } - - break; - - - case REF_FORCE_DELETE: - - ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "Obj %p Refs=%X, Force delete! (Set to 0)\n", - Object, Count)); - - NewCount = 0; - Object->Common.ReferenceCount = NewCount; - AcpiUtDeleteInternalObj (Object); - break; - - - default: - - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unknown action (%X)\n", Action)); - break; - } - - /* - * Sanity check the reference count, for debug purposes only. - * (A deleted object will have a huge reference count) - */ - if (Count > ACPI_MAX_REFERENCE_COUNT) - { - - ACPI_DEBUG_PRINT ((ACPI_DB_WARN, - "**** Warning **** Large Reference Count (%X) in object %p\n\n", - Count, Object)); - } - - return; -} - - -/******************************************************************************* - * - * FUNCTION: AcpiUtUpdateObjectReference - * - * PARAMETERS: *Object - Increment ref count for this object - * and all sub-objects - * Action - Either REF_INCREMENT or REF_DECREMENT or - * REF_FORCE_DELETE - * - * RETURN: Status - * - * DESCRIPTION: Increment the object reference count - * - * Object references are incremented when: - * 1) An object is attached to a Node (namespace object) - * 2) An object is copied (all subobjects must be incremented) - * - * Object references are decremented when: - * 1) An object is detached from an Node - * - ******************************************************************************/ - -ACPI_STATUS -AcpiUtUpdateObjectReference ( - ACPI_OPERAND_OBJECT *Object, - UINT16 Action) -{ - ACPI_STATUS Status; - UINT32 i; - ACPI_OPERAND_OBJECT *Next; - ACPI_OPERAND_OBJECT *New; - ACPI_GENERIC_STATE *StateList = NULL; - ACPI_GENERIC_STATE *State; - - - ACPI_FUNCTION_TRACE_PTR ("UtUpdateObjectReference", Object); - - - /* Ignore a null object ptr */ - - if (!Object) - { - return_ACPI_STATUS (AE_OK); - } - - /* - * Make sure that this isn't a namespace handle - */ - if (ACPI_GET_DESCRIPTOR_TYPE (Object) == ACPI_DESC_TYPE_NAMED) - { - ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "Object %p is NS handle\n", Object)); - return_ACPI_STATUS (AE_OK); - } - - State = AcpiUtCreateUpdateState (Object, Action); - - while (State) - { - Object = State->Update.Object; - Action = State->Update.Value; - AcpiUtDeleteGenericState (State); - - /* - * All sub-objects must have their reference count incremented also. - * Different object types have different subobjects. - */ - switch (ACPI_GET_OBJECT_TYPE (Object)) - { - case ACPI_TYPE_DEVICE: - - Status = AcpiUtCreateUpdateStateAndPush (Object->Device.AddrHandler, - Action, &StateList); - if (ACPI_FAILURE (Status)) - { - goto ErrorExit; - } - - AcpiUtUpdateRefCount (Object->Device.SysHandler, Action); - AcpiUtUpdateRefCount (Object->Device.DrvHandler, Action); - break; - - - case ACPI_TYPE_LOCAL_ADDRESS_HANDLER: - - /* Must walk list of address handlers */ - - Next = Object->AddrHandler.Next; - while (Next) - { - New = Next->AddrHandler.Next; - AcpiUtUpdateRefCount (Next, Action); - - Next = New; - } - break; - - - case ACPI_TYPE_PACKAGE: - - /* - * We must update all the sub-objects of the package - * (Each of whom may have their own sub-objects, etc. - */ - for (i = 0; i < Object->Package.Count; i++) - { - /* - * Push each element onto the stack for later processing. - * Note: There can be null elements within the package, - * these are simply ignored - */ - Status = AcpiUtCreateUpdateStateAndPush ( - Object->Package.Elements[i], Action, &StateList); - if (ACPI_FAILURE (Status)) - { - goto ErrorExit; - } - } - break; - - - case ACPI_TYPE_BUFFER_FIELD: - - Status = AcpiUtCreateUpdateStateAndPush ( - Object->BufferField.BufferObj, Action, &StateList); - if (ACPI_FAILURE (Status)) - { - goto ErrorExit; - } - break; - - - case ACPI_TYPE_LOCAL_REGION_FIELD: - - Status = AcpiUtCreateUpdateStateAndPush ( - Object->Field.RegionObj, Action, &StateList); - if (ACPI_FAILURE (Status)) - { - goto ErrorExit; - } - break; - - - case ACPI_TYPE_LOCAL_BANK_FIELD: - - Status = AcpiUtCreateUpdateStateAndPush ( - Object->BankField.BankObj, Action, &StateList); - if (ACPI_FAILURE (Status)) - { - goto ErrorExit; - } - - Status = AcpiUtCreateUpdateStateAndPush ( - Object->BankField.RegionObj, Action, &StateList); - if (ACPI_FAILURE (Status)) - { - goto ErrorExit; - } - break; - - - case ACPI_TYPE_LOCAL_INDEX_FIELD: - - Status = AcpiUtCreateUpdateStateAndPush ( - Object->IndexField.IndexObj, Action, &StateList); - if (ACPI_FAILURE (Status)) - { - goto ErrorExit; - } - - Status = AcpiUtCreateUpdateStateAndPush ( - Object->IndexField.DataObj, Action, &StateList); - if (ACPI_FAILURE (Status)) - { - goto ErrorExit; - } - break; - - - case ACPI_TYPE_REGION: - case ACPI_TYPE_LOCAL_REFERENCE: - default: - - /* No subobjects */ - break; - } - - /* - * Now we can update the count in the main object. This can only - * happen after we update the sub-objects in case this causes the - * main object to be deleted. - */ - AcpiUtUpdateRefCount (Object, Action); - - /* Move on to the next object to be updated */ - - State = AcpiUtPopGenericState (&StateList); - } - - return_ACPI_STATUS (AE_OK); - - -ErrorExit: - - ACPI_REPORT_ERROR (("Could not update object reference count, %s\n", - AcpiFormatException (Status))); - - return_ACPI_STATUS (Status); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiUtAddReference - * - * PARAMETERS: *Object - Object whose reference count is to be - * incremented - * - * RETURN: None - * - * DESCRIPTION: Add one reference to an ACPI object - * - ******************************************************************************/ - -void -AcpiUtAddReference ( - ACPI_OPERAND_OBJECT *Object) -{ - - ACPI_FUNCTION_TRACE_PTR ("UtAddReference", Object); - - - /* - * Ensure that we have a valid object - */ - if (!AcpiUtValidInternalObject (Object)) - { - return_VOID; - } - - /* - * We have a valid ACPI internal object, now increment the reference count - */ - (void) AcpiUtUpdateObjectReference (Object, REF_INCREMENT); - return_VOID; -} - - -/******************************************************************************* - * - * FUNCTION: AcpiUtRemoveReference - * - * PARAMETERS: *Object - Object whose ref count will be decremented - * - * RETURN: None - * - * DESCRIPTION: Decrement the reference count of an ACPI internal object - * - ******************************************************************************/ - -void -AcpiUtRemoveReference ( - ACPI_OPERAND_OBJECT *Object) -{ - - ACPI_FUNCTION_TRACE_PTR ("UtRemoveReference", Object); - - /* - * Allow a NULL pointer to be passed in, just ignore it. This saves - * each caller from having to check. Also, ignore NS nodes. - * - */ - if (!Object || - (ACPI_GET_DESCRIPTOR_TYPE (Object) == ACPI_DESC_TYPE_NAMED)) - - { - return_VOID; - } - - /* - * Ensure that we have a valid object - */ - if (!AcpiUtValidInternalObject (Object)) - { - return_VOID; - } - - ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "Obj %p Refs=%X\n", - Object, Object->Common.ReferenceCount)); - - /* - * Decrement the reference count, and only actually delete the object - * if the reference count becomes 0. (Must also decrement the ref count - * of all subobjects!) - */ - (void) AcpiUtUpdateObjectReference (Object, REF_DECREMENT); - return_VOID; -} - - |