void *
AcpiUtAcquireFromCache (
UINT32 ListId)
{
ACPI_MEMORY_LIST *CacheInfo;
void *Object;
PROC_NAME ("UtAcquireFromCache");
CacheInfo = &AcpiGbl_MemoryLists[ListId];
AcpiUtAcquireMutex (ACPI_MTX_CACHES);
ACPI_MEM_TRACKING (CacheInfo->CacheRequests++);
/* Check the cache first */
if (CacheInfo->ListHead)
{
/* There is an object available, use it */
Object = CacheInfo->ListHead;
CacheInfo->ListHead = * (char **) (((char *) Object) + CacheInfo->LinkOffset);
ACPI_MEM_TRACKING (CacheInfo->CacheHits++);
CacheInfo->CacheDepth--;
#ifdef ACPI_DBG_TRACK_ALLOCATIONS
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Object %p from %s\n",
Object, AcpiGbl_MemoryLists[ListId].ListName));
#endif
AcpiUtReleaseMutex (ACPI_MTX_CACHES);
/* Clear (zero) the previously used Object */
MEMSET (Object, 0, CacheInfo->ObjectSize);
}
else
{
/* The cache is empty, create a new object */
/* Avoid deadlock with ACPI_MEM_CALLOCATE */
AcpiUtReleaseMutex (ACPI_MTX_CACHES);
Object = ACPI_MEM_CALLOCATE (CacheInfo->ObjectSize);
ACPI_MEM_TRACKING (CacheInfo->TotalAllocated++);
}
return (Object);
}
void
acpi_ut_release_to_cache (
u32 list_id,
void *object)
{
struct acpi_memory_list *cache_info;
ACPI_FUNCTION_ENTRY ();
cache_info = &acpi_gbl_memory_lists[list_id];
#ifdef ACPI_ENABLE_OBJECT_CACHE
/* If walk cache is full, just free this wallkstate object */
if (cache_info->cache_depth >= cache_info->max_cache_depth) {
ACPI_MEM_FREE (object);
ACPI_MEM_TRACKING (cache_info->total_freed++);
}
/* Otherwise put this object back into the cache */
else {
if (ACPI_FAILURE (acpi_ut_acquire_mutex (ACPI_MTX_CACHES))) {
return;
}
/* Mark the object as cached */
ACPI_MEMSET (object, 0xCA, cache_info->object_size);
ACPI_SET_DESCRIPTOR_TYPE (object, ACPI_DESC_TYPE_CACHED);
/* Put the object at the head of the cache list */
* (ACPI_CAST_INDIRECT_PTR (char, &(((char *) object)[cache_info->link_offset]))) = cache_info->list_head;
cache_info->list_head = object;
cache_info->cache_depth++;
(void) acpi_ut_release_mutex (ACPI_MTX_CACHES);
}
#else
/* Object cache is disabled; just free the object */
ACPI_MEM_FREE (object);
ACPI_MEM_TRACKING (cache_info->total_freed++);
#endif
}
void *
AcpiOsAcquireObject (
ACPI_MEMORY_LIST *Cache)
{
ACPI_STATUS Status;
void *Object;
ACPI_FUNCTION_NAME (OsAcquireObject);
if (!Cache)
{
return (NULL);
}
Status = AcpiUtAcquireMutex (ACPI_MTX_CACHES);
if (ACPI_FAILURE (Status))
{
return (NULL);
}
ACPI_MEM_TRACKING (Cache->Requests++);
/* Check the cache first */
if (Cache->ListHead)
{
/* There is an object available, use it */
Object = Cache->ListHead;
Cache->ListHead = *(ACPI_CAST_INDIRECT_PTR (char,
&(((char *) Object)[Cache->LinkOffset])));
Cache->CurrentDepth--;
ACPI_MEM_TRACKING (Cache->Hits++);
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
"Object %p from %s cache\n", Object, Cache->ListName));
Status = AcpiUtReleaseMutex (ACPI_MTX_CACHES);
if (ACPI_FAILURE (Status))
{
return (NULL);
}
/* Clear (zero) the previously used Object */
ACPI_MEMSET (Object, 0, Cache->ObjectSize);
}
void acpi_ns_delete_node(struct acpi_namespace_node *node)
{
union acpi_operand_object *obj_desc;
ACPI_FUNCTION_NAME(ns_delete_node);
/* Detach an object if there is one */
acpi_ns_detach_object(node);
/*
* Delete an attached data object if present (an object that was created
* and attached via acpi_attach_data). Note: After any normal object is
* detached above, the only possible remaining object is a data object.
*/
obj_desc = node->object;
if (obj_desc && (obj_desc->common.type == ACPI_TYPE_LOCAL_DATA)) {
/* Invoke the attached data deletion handler if present */
if (obj_desc->data.handler) {
obj_desc->data.handler(node, obj_desc->data.pointer);
}
acpi_ut_remove_reference(obj_desc);
}
/* Now we can delete the node */
(void)acpi_os_release_object(acpi_gbl_namespace_cache, node);
ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_freed++);
ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "Node %p, Remaining %X\n",
node, acpi_gbl_current_node_count));
}
void
AcpiNsDeleteNode (
ACPI_NAMESPACE_NODE *Node)
{
ACPI_NAMESPACE_NODE *ParentNode;
ACPI_NAMESPACE_NODE *PrevNode;
ACPI_NAMESPACE_NODE *NextNode;
ACPI_FUNCTION_TRACE_PTR (NsDeleteNode, Node);
ParentNode = AcpiNsGetParentNode (Node);
PrevNode = NULL;
NextNode = ParentNode->Child;
/* Find the node that is the previous peer in the parent's child list */
while (NextNode != Node)
{
PrevNode = NextNode;
NextNode = PrevNode->Peer;
}
if (PrevNode)
{
/* Node is not first child, unlink it */
PrevNode->Peer = NextNode->Peer;
if (NextNode->Flags & ANOBJ_END_OF_PEER_LIST)
{
PrevNode->Flags |= ANOBJ_END_OF_PEER_LIST;
}
}
else
{
/* Node is first child (has no previous peer) */
if (NextNode->Flags & ANOBJ_END_OF_PEER_LIST)
{
/* No peers at all */
ParentNode->Child = NULL;
}
else
{ /* Link peer list to parent */
ParentNode->Child = NextNode->Peer;
}
}
ACPI_MEM_TRACKING (AcpiGbl_NsNodeList->TotalFreed++);
/* Detach an object if there is one, then delete the node */
AcpiNsDetachObject (Node);
(void) AcpiOsReleaseObject (AcpiGbl_NamespaceCache, Node);
return_VOID;
}
struct acpi_namespace_node *acpi_ns_create_node(u32 name)
{
struct acpi_namespace_node *node;
#ifdef ACPI_DBG_TRACK_ALLOCATIONS
u32 temp;
#endif
ACPI_FUNCTION_TRACE(ns_create_node);
node = acpi_os_acquire_object(acpi_gbl_namespace_cache);
if (!node) {
return_PTR(NULL);
}
ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_allocated++);
#ifdef ACPI_DBG_TRACK_ALLOCATIONS
temp = acpi_gbl_ns_node_list->total_allocated -
acpi_gbl_ns_node_list->total_freed;
if (temp > acpi_gbl_ns_node_list->max_occupied) {
acpi_gbl_ns_node_list->max_occupied = temp;
}
#endif
node->name.integer = name;
ACPI_SET_DESCRIPTOR_TYPE(node, ACPI_DESC_TYPE_NAMED);
return_PTR(node);
}
void acpi_ns_delete_node(struct acpi_namespace_node *node)
{
union acpi_operand_object *obj_desc;
ACPI_FUNCTION_NAME(ns_delete_node);
acpi_ns_detach_object(node);
obj_desc = node->object;
if (obj_desc && (obj_desc->common.type == ACPI_TYPE_LOCAL_DATA)) {
if (obj_desc->data.handler) {
obj_desc->data.handler(node, obj_desc->data.pointer);
}
acpi_ut_remove_reference(obj_desc);
}
(void)acpi_os_release_object(acpi_gbl_namespace_cache, node);
ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_freed++);
ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "Node %p, Remaining %X\n",
node, acpi_gbl_current_node_count));
}
ACPI_NAMESPACE_NODE *
AcpiNsCreateNode (
UINT32 Name)
{
ACPI_NAMESPACE_NODE *Node;
#ifdef ACPI_DBG_TRACK_ALLOCATIONS
UINT32 Temp;
#endif
ACPI_FUNCTION_TRACE (NsCreateNode);
Node = AcpiOsAcquireObject (AcpiGbl_NamespaceCache);
if (!Node)
{
return_PTR (NULL);
}
ACPI_MEM_TRACKING (AcpiGbl_NsNodeList->TotalAllocated++);
#ifdef ACPI_DBG_TRACK_ALLOCATIONS
Temp = AcpiGbl_NsNodeList->TotalAllocated -
AcpiGbl_NsNodeList->TotalFreed;
if (Temp > AcpiGbl_NsNodeList->MaxOccupied)
{
AcpiGbl_NsNodeList->MaxOccupied = Temp;
}
#endif
Node->Name.Integer = Name;
ACPI_SET_DESCRIPTOR_TYPE (Node, ACPI_DESC_TYPE_NAMED);
return_PTR (Node);
}
void *acpi_os_acquire_object(struct acpi_memory_list *cache)
{
acpi_status status;
void *object;
ACPI_FUNCTION_NAME(os_acquire_object);
if (!cache) {
return (NULL);
}
status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES);
if (ACPI_FAILURE(status)) {
return (NULL);
}
ACPI_MEM_TRACKING(cache->requests++);
/* Check the cache first */
if (cache->list_head) {
/* There is an object available, use it */
object = cache->list_head;
cache->list_head = *(ACPI_CAST_INDIRECT_PTR(char,
&(((char *)
object)[cache->
link_offset])));
cache->current_depth--;
ACPI_MEM_TRACKING(cache->hits++);
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
"Object %p from %s cache\n", object,
cache->list_name));
status = acpi_ut_release_mutex(ACPI_MTX_CACHES);
if (ACPI_FAILURE(status)) {
return (NULL);
}
/* Clear (zero) the previously used Object */
ACPI_MEMSET(object, 0, cache->object_size);
} else {
void *
acpi_ut_acquire_from_cache (
u32 list_id)
{
struct acpi_memory_list *cache_info;
void *object;
ACPI_FUNCTION_NAME ("ut_acquire_from_cache");
cache_info = &acpi_gbl_memory_lists[list_id];
#ifdef ACPI_ENABLE_OBJECT_CACHE
if (ACPI_FAILURE (acpi_ut_acquire_mutex (ACPI_MTX_CACHES))) {
return (NULL);
}
ACPI_MEM_TRACKING (cache_info->cache_requests++);
/* Check the cache first */
if (cache_info->list_head) {
/* There is an object available, use it */
object = cache_info->list_head;
cache_info->list_head = *(ACPI_CAST_INDIRECT_PTR (char, &(((char *) object)[cache_info->link_offset])));
ACPI_MEM_TRACKING (cache_info->cache_hits++);
cache_info->cache_depth--;
#ifdef ACPI_DBG_TRACK_ALLOCATIONS
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Object %p from %s\n",
object, acpi_gbl_memory_lists[list_id].list_name));
#endif
if (ACPI_FAILURE (acpi_ut_release_mutex (ACPI_MTX_CACHES))) {
return (NULL);
}
/* Clear (zero) the previously used Object */
ACPI_MEMSET (object, 0, cache_info->object_size);
}
void *
AcpiUtAcquireFromCache (
UINT32 ListId)
{
ACPI_MEMORY_LIST *CacheInfo;
void *Object;
ACPI_FUNCTION_NAME ("UtAcquireFromCache");
CacheInfo = &AcpiGbl_MemoryLists[ListId];
if (ACPI_FAILURE (AcpiUtAcquireMutex (ACPI_MTX_CACHES)))
{
return (NULL);
}
ACPI_MEM_TRACKING (CacheInfo->CacheRequests++);
/* Check the cache first */
if (CacheInfo->ListHead)
{
/* There is an object available, use it */
Object = CacheInfo->ListHead;
CacheInfo->ListHead = *(ACPI_CAST_INDIRECT_PTR (char, &(((char *) Object)[CacheInfo->LinkOffset])));
ACPI_MEM_TRACKING (CacheInfo->CacheHits++);
CacheInfo->CacheDepth--;
#ifdef ACPI_DBG_TRACK_ALLOCATIONS
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Object %p from %s\n",
Object, AcpiGbl_MemoryLists[ListId].ListName));
#endif
if (ACPI_FAILURE (AcpiUtReleaseMutex (ACPI_MTX_CACHES)))
{
return (NULL);
}
/* Clear (zero) the previously used Object */
ACPI_MEMSET (Object, 0, CacheInfo->ObjectSize);
}
void
acpi_ns_delete_node (
struct acpi_namespace_node *node)
{
struct acpi_namespace_node *parent_node;
struct acpi_namespace_node *prev_node;
struct acpi_namespace_node *next_node;
ACPI_FUNCTION_TRACE_PTR ("ns_delete_node", node);
parent_node = acpi_ns_get_parent_node (node);
prev_node = NULL;
next_node = parent_node->child;
/* Find the node that is the previous peer in the parent's child list */
while (next_node != node) {
prev_node = next_node;
next_node = prev_node->peer;
}
if (prev_node) {
/* Node is not first child, unlink it */
prev_node->peer = next_node->peer;
if (next_node->flags & ANOBJ_END_OF_PEER_LIST) {
prev_node->flags |= ANOBJ_END_OF_PEER_LIST;
}
}
else {
/* Node is first child (has no previous peer) */
if (next_node->flags & ANOBJ_END_OF_PEER_LIST) {
/* No peers at all */
parent_node->child = NULL;
}
else { /* Link peer list to parent */
parent_node->child = next_node->peer;
}
}
ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_NSNODE].total_freed++);
/*
* Detach an object if there is one then delete the node
*/
acpi_ns_detach_object (node);
ACPI_MEM_FREE (node);
return_VOID;
}
void
AcpiNsDeleteNode (
ACPI_NAMESPACE_NODE *Node)
{
ACPI_OPERAND_OBJECT *ObjDesc;
ACPI_OPERAND_OBJECT *NextDesc;
ACPI_FUNCTION_NAME (NsDeleteNode);
/* Detach an object if there is one */
AcpiNsDetachObject (Node);
/*
* Delete an attached data object list if present (objects that were
* attached via AcpiAttachData). Note: After any normal object is
* detached above, the only possible remaining object(s) are data
* objects, in a linked list.
*/
ObjDesc = Node->Object;
while (ObjDesc &&
(ObjDesc->Common.Type == ACPI_TYPE_LOCAL_DATA))
{
/* Invoke the attached data deletion handler if present */
if (ObjDesc->Data.Handler)
{
ObjDesc->Data.Handler (Node, ObjDesc->Data.Pointer);
}
NextDesc = ObjDesc->Common.NextObject;
AcpiUtRemoveReference (ObjDesc);
ObjDesc = NextDesc;
}
/* Special case for the statically allocated root node */
if (Node == AcpiGbl_RootNode)
{
return;
}
/* Now we can delete the node */
(void) AcpiOsReleaseObject (AcpiGbl_NamespaceCache, Node);
ACPI_MEM_TRACKING (AcpiGbl_NsNodeList->TotalFreed++);
ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "Node %p, Remaining %X\n",
Node, AcpiGbl_CurrentNodeCount));
}
ACPI_STATUS
AcpiOsReleaseObject (
ACPI_MEMORY_LIST *Cache,
void *Object)
{
ACPI_STATUS Status;
ACPI_FUNCTION_ENTRY ();
if (!Cache || !Object)
{
return (AE_BAD_PARAMETER);
}
/* If cache is full, just free this object */
if (Cache->CurrentDepth >= Cache->MaxDepth)
{
ACPI_FREE (Object);
ACPI_MEM_TRACKING (Cache->TotalFreed++);
}
/* Otherwise put this object back into the cache */
else
{
Status = AcpiUtAcquireMutex (ACPI_MTX_CACHES);
if (ACPI_FAILURE (Status))
{
return (Status);
}
/* Mark the object as cached */
ACPI_MEMSET (Object, 0xCA, Cache->ObjectSize);
ACPI_SET_DESCRIPTOR_TYPE (Object, ACPI_DESC_TYPE_CACHED);
/* Put the object at the head of the cache list */
* (ACPI_CAST_INDIRECT_PTR (char,
&(((char *) Object)[Cache->LinkOffset]))) = Cache->ListHead;
Cache->ListHead = Object;
Cache->CurrentDepth++;
(void) AcpiUtReleaseMutex (ACPI_MTX_CACHES);
}
return (AE_OK);
}
void acpi_ns_delete_node(struct acpi_namespace_node *node)
{
union acpi_operand_object *obj_desc;
union acpi_operand_object *next_desc;
ACPI_FUNCTION_NAME(ns_delete_node);
if (!node) {
return_VOID;
}
/* Detach an object if there is one */
acpi_ns_detach_object(node);
/*
* Delete an attached data object list if present (objects that were
* attached via acpi_attach_data). Note: After any normal object is
* detached above, the only possible remaining object(s) are data
* objects, in a linked list.
*/
obj_desc = node->object;
while (obj_desc && (obj_desc->common.type == ACPI_TYPE_LOCAL_DATA)) {
/* Invoke the attached data deletion handler if present */
if (obj_desc->data.handler) {
obj_desc->data.handler(node, obj_desc->data.pointer);
}
next_desc = obj_desc->common.next_object;
acpi_ut_remove_reference(obj_desc);
obj_desc = next_desc;
}
/* Special case for the statically allocated root node */
if (node == acpi_gbl_root_node) {
return;
}
/* Now we can delete the node */
(void)acpi_os_release_object(acpi_gbl_namespace_cache, node);
ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_freed++);
ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "Node %p, Remaining %X\n",
node, acpi_gbl_current_node_count));
}
/**ltl
* 功能: 创建命名空间对象
* 参数:
* 返回值:
* 说明: 为命名空间名字赋值，同时设定标志ACPI_DESC_TYPE_NAMED
*/
struct acpi_namespace_node *acpi_ns_create_node(u32 name)
{
struct acpi_namespace_node *node;
ACPI_FUNCTION_TRACE(ns_create_node);
node = acpi_os_acquire_object(acpi_gbl_namespace_cache);
if (!node) {
return_PTR(NULL);
}
ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_allocated++);
node->name.integer = name;
ACPI_SET_DESCRIPTOR_TYPE(node, ACPI_DESC_TYPE_NAMED);
return_PTR(node);
}
acpi_status
acpi_os_release_object(struct acpi_memory_list * cache, void *object)
{
acpi_status status;
ACPI_FUNCTION_ENTRY();
if (!cache || !object) {
return (AE_BAD_PARAMETER);
}
/* If cache is full, just free this object */
if (cache->current_depth >= cache->max_depth) {
ACPI_FREE(object);
ACPI_MEM_TRACKING(cache->total_freed++);
}
/* Otherwise put this object back into the cache */
else {
status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES);
if (ACPI_FAILURE(status)) {
return (status);
}
/* Mark the object as cached */
ACPI_MEMSET(object, 0xCA, cache->object_size);
ACPI_SET_DESCRIPTOR_TYPE(object, ACPI_DESC_TYPE_CACHED);
/* Put the object at the head of the cache list */
*(ACPI_CAST_INDIRECT_PTR(char,
&(((char *)object)[cache->
link_offset]))) =
cache->list_head;
cache->list_head = object;
cache->current_depth++;
(void)acpi_ut_release_mutex(ACPI_MTX_CACHES);
}
return (AE_OK);
}
void
AcpiUtReleaseToCache (
UINT32 ListId,
void *Object)
{
ACPI_MEMORY_LIST *CacheInfo;
ACPI_FUNCTION_ENTRY ();
/* If walk cache is full, just free this wallkstate object */
CacheInfo = &AcpiGbl_MemoryLists[ListId];
if (CacheInfo->CacheDepth >= CacheInfo->MaxCacheDepth)
{
ACPI_MEM_FREE (Object);
ACPI_MEM_TRACKING (CacheInfo->TotalFreed++);
}
/* Otherwise put this object back into the cache */
else
{
if (ACPI_FAILURE (AcpiUtAcquireMutex (ACPI_MTX_CACHES)))
{
return;
}
/* Mark the object as cached */
ACPI_MEMSET (Object, 0xCA, CacheInfo->ObjectSize);
ACPI_SET_DESCRIPTOR_TYPE (Object, ACPI_DESC_TYPE_CACHED);
/* Put the object at the head of the cache list */
* (ACPI_CAST_INDIRECT_PTR (char, &(((char *) Object)[CacheInfo->LinkOffset]))) = CacheInfo->ListHead;
CacheInfo->ListHead = Object;
CacheInfo->CacheDepth++;
(void) AcpiUtReleaseMutex (ACPI_MTX_CACHES);
}
}
void
AcpiNsDeleteNode (
ACPI_NAMESPACE_NODE *Node)
{
ACPI_OPERAND_OBJECT *ObjDesc;
ACPI_FUNCTION_NAME (NsDeleteNode);
/* Detach an object if there is one */
AcpiNsDetachObject (Node);
/*
* Delete an attached data object if present (an object that was created
* and attached via AcpiAttachData). Note: After any normal object is
* detached above, the only possible remaining object is a data object.
*/
ObjDesc = Node->Object;
if (ObjDesc &&
(ObjDesc->Common.Type == ACPI_TYPE_LOCAL_DATA))
{
/* Invoke the attached data deletion handler if present */
if (ObjDesc->Data.Handler)
{
ObjDesc->Data.Handler (Node, ObjDesc->Data.Pointer);
}
AcpiUtRemoveReference (ObjDesc);
}
/* Now we can delete the node */
(void) AcpiOsReleaseObject (AcpiGbl_NamespaceCache, Node);
ACPI_MEM_TRACKING (AcpiGbl_NsNodeList->TotalFreed++);
ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "Node %p, Remaining %X\n",
Node, AcpiGbl_CurrentNodeCount));
}
ACPI_NAMESPACE_NODE *
AcpiNsCreateNode (
UINT32 Name)
{
ACPI_NAMESPACE_NODE *Node;
ACPI_FUNCTION_TRACE (NsCreateNode);
Node = AcpiOsAcquireObject (AcpiGbl_NamespaceCache);
if (!Node)
{
return_PTR (NULL);
}
ACPI_MEM_TRACKING (AcpiGbl_NsNodeList->TotalAllocated++);
Node->Name.Integer = Name;
ACPI_SET_DESCRIPTOR_TYPE (Node, ACPI_DESC_TYPE_NAMED);
return_PTR (Node);
}
void
AcpiUtReleaseToCache (
UINT32 ListId,
void *Object)
{
ACPI_MEMORY_LIST *CacheInfo;
FUNCTION_ENTRY ();
/* If walk cache is full, just free this wallkstate object */
CacheInfo = &AcpiGbl_MemoryLists[ListId];
if (CacheInfo->CacheDepth >= CacheInfo->MaxCacheDepth)
{
ACPI_MEM_FREE (Object);
ACPI_MEM_TRACKING (CacheInfo->TotalFreed++);
}
/* Otherwise put this object back into the cache */
else
{
AcpiUtAcquireMutex (ACPI_MTX_CACHES);
/* Mark the object as cached */
MEMSET (Object, 0xCA, CacheInfo->ObjectSize);
/* Put the object at the head of the cache list */
* (char **) (((char *) Object) + CacheInfo->LinkOffset) = CacheInfo->ListHead;
CacheInfo->ListHead = Object;
CacheInfo->CacheDepth++;
AcpiUtReleaseMutex (ACPI_MTX_CACHES);
}
}
struct acpi_namespace_node *
acpi_ns_create_node (
u32 name)
{
struct acpi_namespace_node *node;
ACPI_FUNCTION_TRACE ("ns_create_node");
node = ACPI_MEM_CALLOCATE (sizeof (struct acpi_namespace_node));
if (!node) {
return_PTR (NULL);
}
ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_NSNODE].total_allocated++);
node->name.integer = name;
node->reference_count = 1;
ACPI_SET_DESCRIPTOR_TYPE (node, ACPI_DESC_TYPE_NAMED);
return_PTR (node);
}
void
AcpiNsDeleteChildren (
ACPI_NAMESPACE_NODE *ParentNode)
{
ACPI_NAMESPACE_NODE *ChildNode;
ACPI_NAMESPACE_NODE *NextNode;
UINT8 Flags;
ACPI_FUNCTION_TRACE_PTR (NsDeleteChildren, ParentNode);
if (!ParentNode)
{
return_VOID;
}
/* If no children, all done! */
ChildNode = ParentNode->Child;
if (!ChildNode)
{
return_VOID;
}
/*
* Deallocate all children at this level
*/
do
{
/* Get the things we need */
NextNode = ChildNode->Peer;
Flags = ChildNode->Flags;
/* Grandchildren should have all been deleted already */
if (ChildNode->Child)
{
ACPI_ERROR ((AE_INFO, "Found a grandchild! P=%p C=%p",
ParentNode, ChildNode));
}
/* Now we can free this child object */
ACPI_MEM_TRACKING (AcpiGbl_NsNodeList->TotalFreed++);
ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "Object %p, Remaining %X\n",
ChildNode, AcpiGbl_CurrentNodeCount));
/*
* Detach an object if there is one, then free the child node
*/
AcpiNsDetachObject (ChildNode);
/* Now we can delete the node */
(void) AcpiOsReleaseObject (AcpiGbl_NamespaceCache, ChildNode);
/* And move on to the next child in the list */
ChildNode = NextNode;
} while (!(Flags & ANOBJ_END_OF_PEER_LIST));
/* Clear the parent's child pointer */
ParentNode->Child = NULL;
return_VOID;
}
void *acpi_os_acquire_object(struct acpi_memory_list *cache)
{
acpi_status status;
void *object;
ACPI_FUNCTION_NAME(os_acquire_object);
if (!cache) {
return_PTR(NULL);
}
status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES);
if (ACPI_FAILURE(status)) {
return_PTR(NULL);
}
ACPI_MEM_TRACKING(cache->requests++);
/* Check the cache first */
if (cache->list_head) {
/* There is an object available, use it */
object = cache->list_head;
cache->list_head = ACPI_GET_DESCRIPTOR_PTR(object);
cache->current_depth--;
ACPI_MEM_TRACKING(cache->hits++);
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
"Object %p from %s cache\n", object,
cache->list_name));
status = acpi_ut_release_mutex(ACPI_MTX_CACHES);
if (ACPI_FAILURE(status)) {
return_PTR(NULL);
}
/* Clear (zero) the previously used Object */
ACPI_MEMSET(object, 0, cache->object_size);
} else {
/* The cache is empty, create a new object */
ACPI_MEM_TRACKING(cache->total_allocated++);
#ifdef ACPI_DBG_TRACK_ALLOCATIONS
if ((cache->total_allocated - cache->total_freed) >
cache->max_occupied) {
cache->max_occupied =
cache->total_allocated - cache->total_freed;
}
#endif
/* Avoid deadlock with ACPI_ALLOCATE_ZEROED */
status = acpi_ut_release_mutex(ACPI_MTX_CACHES);
if (ACPI_FAILURE(status)) {
return_PTR(NULL);
}
object = ACPI_ALLOCATE_ZEROED(cache->object_size);
if (!object) {
return_PTR(NULL);
}
}
return_PTR(object);
}
void
acpi_ns_delete_children (
struct acpi_namespace_node *parent_node)
{
struct acpi_namespace_node *child_node;
struct acpi_namespace_node *next_node;
struct acpi_namespace_node *node;
u8 flags;
ACPI_FUNCTION_TRACE_PTR ("ns_delete_children", parent_node);
if (!parent_node) {
return_VOID;
}
/* If no children, all done! */
child_node = parent_node->child;
if (!child_node) {
return_VOID;
}
/*
* Deallocate all children at this level
*/
do {
/* Get the things we need */
next_node = child_node->peer;
flags = child_node->flags;
/* Grandchildren should have all been deleted already */
if (child_node->child) {
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Found a grandchild! P=%p C=%p\n",
parent_node, child_node));
}
/* Now we can free this child object */
ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_NSNODE].total_freed++);
ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "Object %p, Remaining %X\n",
child_node, acpi_gbl_current_node_count));
/*
* Detach an object if there is one, then free the child node
*/
acpi_ns_detach_object (child_node);
/*
* Decrement the reference count(s) of all parents up to
* the root! (counts were incremented when the node was created)
*/
node = child_node;
while ((node = acpi_ns_get_parent_node (node)) != NULL) {
node->reference_count--;
}
/* There should be only one reference remaining on this node */
if (child_node->reference_count != 1) {
ACPI_REPORT_WARNING (("Existing references (%d) on node being deleted (%p)\n",
child_node->reference_count, child_node));
}
/* Now we can delete the node */
ACPI_MEM_FREE (child_node);
/* And move on to the next child in the list */
child_node = next_node;
} while (!(flags & ANOBJ_END_OF_PEER_LIST));
/* Clear the parent's child pointer */
parent_node->child = NULL;
return_VOID;
}
void
AcpiUtInitGlobals (
void)
{
UINT32 i;
ACPI_FUNCTION_TRACE ("UtInitGlobals");
/* Memory allocation and cache lists */
ACPI_MEMSET (AcpiGbl_MemoryLists, 0, sizeof (ACPI_MEMORY_LIST) * ACPI_NUM_MEM_LISTS);
AcpiGbl_MemoryLists[ACPI_MEM_LIST_STATE].LinkOffset = (UINT16) ACPI_PTR_DIFF (&(((ACPI_GENERIC_STATE *) NULL)->Common.Next), NULL);
AcpiGbl_MemoryLists[ACPI_MEM_LIST_PSNODE].LinkOffset = (UINT16) ACPI_PTR_DIFF (&(((ACPI_PARSE_OBJECT *) NULL)->Common.Next), NULL);
AcpiGbl_MemoryLists[ACPI_MEM_LIST_PSNODE_EXT].LinkOffset = (UINT16) ACPI_PTR_DIFF (&(((ACPI_PARSE_OBJECT *) NULL)->Common.Next), NULL);
AcpiGbl_MemoryLists[ACPI_MEM_LIST_OPERAND].LinkOffset = (UINT16) ACPI_PTR_DIFF (&(((ACPI_OPERAND_OBJECT *) NULL)->Cache.Next), NULL);
AcpiGbl_MemoryLists[ACPI_MEM_LIST_WALK].LinkOffset = (UINT16) ACPI_PTR_DIFF (&(((ACPI_WALK_STATE *) NULL)->Next), NULL);
AcpiGbl_MemoryLists[ACPI_MEM_LIST_NSNODE].ObjectSize = sizeof (ACPI_NAMESPACE_NODE);
AcpiGbl_MemoryLists[ACPI_MEM_LIST_STATE].ObjectSize = sizeof (ACPI_GENERIC_STATE);
AcpiGbl_MemoryLists[ACPI_MEM_LIST_PSNODE].ObjectSize = sizeof (ACPI_PARSE_OBJ_COMMON);
AcpiGbl_MemoryLists[ACPI_MEM_LIST_PSNODE_EXT].ObjectSize = sizeof (ACPI_PARSE_OBJ_NAMED);
AcpiGbl_MemoryLists[ACPI_MEM_LIST_OPERAND].ObjectSize = sizeof (ACPI_OPERAND_OBJECT);
AcpiGbl_MemoryLists[ACPI_MEM_LIST_WALK].ObjectSize = sizeof (ACPI_WALK_STATE);
AcpiGbl_MemoryLists[ACPI_MEM_LIST_STATE].MaxCacheDepth = ACPI_MAX_STATE_CACHE_DEPTH;
AcpiGbl_MemoryLists[ACPI_MEM_LIST_PSNODE].MaxCacheDepth = ACPI_MAX_PARSE_CACHE_DEPTH;
AcpiGbl_MemoryLists[ACPI_MEM_LIST_PSNODE_EXT].MaxCacheDepth = ACPI_MAX_EXTPARSE_CACHE_DEPTH;
AcpiGbl_MemoryLists[ACPI_MEM_LIST_OPERAND].MaxCacheDepth = ACPI_MAX_OBJECT_CACHE_DEPTH;
AcpiGbl_MemoryLists[ACPI_MEM_LIST_WALK].MaxCacheDepth = ACPI_MAX_WALK_CACHE_DEPTH;
ACPI_MEM_TRACKING (AcpiGbl_MemoryLists[ACPI_MEM_LIST_GLOBAL].ListName = "Global Memory Allocation");
ACPI_MEM_TRACKING (AcpiGbl_MemoryLists[ACPI_MEM_LIST_NSNODE].ListName = "Namespace Nodes");
ACPI_MEM_TRACKING (AcpiGbl_MemoryLists[ACPI_MEM_LIST_STATE].ListName = "State Object Cache");
ACPI_MEM_TRACKING (AcpiGbl_MemoryLists[ACPI_MEM_LIST_PSNODE].ListName = "Parse Node Cache");
ACPI_MEM_TRACKING (AcpiGbl_MemoryLists[ACPI_MEM_LIST_PSNODE_EXT].ListName = "Extended Parse Node Cache");
ACPI_MEM_TRACKING (AcpiGbl_MemoryLists[ACPI_MEM_LIST_OPERAND].ListName = "Operand Object Cache");
ACPI_MEM_TRACKING (AcpiGbl_MemoryLists[ACPI_MEM_LIST_WALK].ListName = "Tree Walk Node Cache");
/* ACPI table structure */
for (i = 0; i < NUM_ACPI_TABLES; i++)
{
AcpiGbl_AcpiTables[i].Prev = &AcpiGbl_AcpiTables[i];
AcpiGbl_AcpiTables[i].Next = &AcpiGbl_AcpiTables[i];
AcpiGbl_AcpiTables[i].Pointer = NULL;
AcpiGbl_AcpiTables[i].Length = 0;
AcpiGbl_AcpiTables[i].Allocation = ACPI_MEM_NOT_ALLOCATED;
AcpiGbl_AcpiTables[i].Count = 0;
}
/* Mutex locked flags */
for (i = 0; i < NUM_MTX; i++)
{
AcpiGbl_AcpiMutexInfo[i].Mutex = NULL;
AcpiGbl_AcpiMutexInfo[i].OwnerId = ACPI_MUTEX_NOT_ACQUIRED;
AcpiGbl_AcpiMutexInfo[i].UseCount = 0;
}
/* GPE support */
AcpiGbl_GpeBlockListHead = NULL;
/* Global notify handlers */
AcpiGbl_SysNotify.Handler = NULL;
AcpiGbl_DrvNotify.Handler = NULL;
AcpiGbl_InitHandler = NULL;
/* Global "typed" ACPI table pointers */
AcpiGbl_RSDP = NULL;
AcpiGbl_XSDT = NULL;
AcpiGbl_FACS = NULL;
AcpiGbl_FADT = NULL;
AcpiGbl_DSDT = NULL;
/* Global Lock support */
AcpiGbl_GlobalLockAcquired = FALSE;
AcpiGbl_GlobalLockThreadCount = 0;
AcpiGbl_GlobalLockHandle = 0;
/* Miscellaneous variables */
AcpiGbl_TableFlags = ACPI_PHYSICAL_POINTER;
AcpiGbl_RsdpOriginalLocation = 0;
AcpiGbl_CmSingleStep = FALSE;
AcpiGbl_DbTerminateThreads = FALSE;
AcpiGbl_Shutdown = FALSE;
AcpiGbl_NsLookupCount = 0;
AcpiGbl_PsFindCount = 0;
AcpiGbl_AcpiHardwarePresent = TRUE;
AcpiGbl_NextTableOwnerId = ACPI_FIRST_TABLE_ID;
AcpiGbl_NextMethodOwnerId = ACPI_FIRST_METHOD_ID;
AcpiGbl_DebuggerConfiguration = DEBUGGER_THREADING;
AcpiGbl_DbOutputFlags = ACPI_DB_CONSOLE_OUTPUT;
/* Hardware oriented */
AcpiGbl_EventsInitialized = FALSE;
/* Namespace */
AcpiGbl_RootNode = NULL;
AcpiGbl_RootNodeStruct.Name.Integer = ACPI_ROOT_NAME;
AcpiGbl_RootNodeStruct.Descriptor = ACPI_DESC_TYPE_NAMED;
AcpiGbl_RootNodeStruct.Type = ACPI_TYPE_DEVICE;
AcpiGbl_RootNodeStruct.Child = NULL;
AcpiGbl_RootNodeStruct.Peer = NULL;
AcpiGbl_RootNodeStruct.Object = NULL;
AcpiGbl_RootNodeStruct.Flags = ANOBJ_END_OF_PEER_LIST;
#ifdef ACPI_DEBUG_OUTPUT
AcpiGbl_LowestStackPointer = ACPI_SIZE_MAX;
#endif
return_VOID;
}
void
acpi_ut_init_globals (
void)
{
u32 i;
FUNCTION_TRACE ("Ut_init_globals");
/* Memory allocation and cache lists */
MEMSET (acpi_gbl_memory_lists, 0, sizeof (ACPI_MEMORY_LIST) * ACPI_NUM_MEM_LISTS);
acpi_gbl_memory_lists[ACPI_MEM_LIST_STATE].link_offset = (u16) (NATIVE_UINT) &(((acpi_generic_state *) NULL)->common.next);
acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE].link_offset = (u16) (NATIVE_UINT) &(((acpi_parse_object *) NULL)->next);
acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE_EXT].link_offset = (u16) (NATIVE_UINT) &(((acpi_parse2_object *) NULL)->next);
acpi_gbl_memory_lists[ACPI_MEM_LIST_OPERAND].link_offset = (u16) (NATIVE_UINT) &(((acpi_operand_object *) NULL)->cache.next);
acpi_gbl_memory_lists[ACPI_MEM_LIST_WALK].link_offset = (u16) (NATIVE_UINT) &(((acpi_walk_state *) NULL)->next);
acpi_gbl_memory_lists[ACPI_MEM_LIST_NSNODE].object_size = sizeof (acpi_namespace_node);
acpi_gbl_memory_lists[ACPI_MEM_LIST_STATE].object_size = sizeof (acpi_generic_state);
acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE].object_size = sizeof (acpi_parse_object);
acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE_EXT].object_size = sizeof (acpi_parse2_object);
acpi_gbl_memory_lists[ACPI_MEM_LIST_OPERAND].object_size = sizeof (acpi_operand_object);
acpi_gbl_memory_lists[ACPI_MEM_LIST_WALK].object_size = sizeof (acpi_walk_state);
acpi_gbl_memory_lists[ACPI_MEM_LIST_STATE].max_cache_depth = MAX_STATE_CACHE_DEPTH;
acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE].max_cache_depth = MAX_PARSE_CACHE_DEPTH;
acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE_EXT].max_cache_depth = MAX_EXTPARSE_CACHE_DEPTH;
acpi_gbl_memory_lists[ACPI_MEM_LIST_OPERAND].max_cache_depth = MAX_OBJECT_CACHE_DEPTH;
acpi_gbl_memory_lists[ACPI_MEM_LIST_WALK].max_cache_depth = MAX_WALK_CACHE_DEPTH;
ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_GLOBAL].list_name = "Global Memory Allocation");
ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_NSNODE].list_name = "Namespace Nodes");
ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_STATE].list_name = "State Object Cache");
ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE].list_name = "Parse Node Cache");
ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE_EXT].list_name = "Extended Parse Node Cache");
ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_OPERAND].list_name = "Operand Object Cache");
ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_WALK].list_name = "Tree Walk Node Cache");
/* ACPI table structure */
for (i = 0; i < NUM_ACPI_TABLES; i++)
{
acpi_gbl_acpi_tables[i].prev = &acpi_gbl_acpi_tables[i];
acpi_gbl_acpi_tables[i].next = &acpi_gbl_acpi_tables[i];
acpi_gbl_acpi_tables[i].pointer = NULL;
acpi_gbl_acpi_tables[i].length = 0;
acpi_gbl_acpi_tables[i].allocation = ACPI_MEM_NOT_ALLOCATED;
acpi_gbl_acpi_tables[i].count = 0;
}
/* Address Space handler array */
for (i = 0; i < ACPI_NUM_ADDRESS_SPACES; i++)
{
acpi_gbl_address_spaces[i].handler = NULL;
acpi_gbl_address_spaces[i].context = NULL;
}
/* Mutex locked flags */
for (i = 0; i < NUM_MTX; i++)
{
acpi_gbl_acpi_mutex_info[i].mutex = NULL;
acpi_gbl_acpi_mutex_info[i].owner_id = ACPI_MUTEX_NOT_ACQUIRED;
acpi_gbl_acpi_mutex_info[i].use_count = 0;
}
/* Global notify handlers */
acpi_gbl_sys_notify.handler = NULL;
acpi_gbl_drv_notify.handler = NULL;
/* Global "typed" ACPI table pointers */
acpi_gbl_RSDP = NULL;
acpi_gbl_XSDT = NULL;
acpi_gbl_FACS = NULL;
acpi_gbl_FADT = NULL;
acpi_gbl_DSDT = NULL;
/* Global Lock support */
acpi_gbl_global_lock_acquired = FALSE;
acpi_gbl_global_lock_thread_count = 0;
/* Miscellaneous variables */
acpi_gbl_system_flags = 0;
acpi_gbl_startup_flags = 0;
acpi_gbl_rsdp_original_location = 0;
acpi_gbl_cm_single_step = FALSE;
acpi_gbl_db_terminate_threads = FALSE;
acpi_gbl_shutdown = FALSE;
acpi_gbl_ns_lookup_count = 0;
acpi_gbl_ps_find_count = 0;
acpi_gbl_acpi_hardware_present = TRUE;
acpi_gbl_next_table_owner_id = FIRST_TABLE_ID;
acpi_gbl_next_method_owner_id = FIRST_METHOD_ID;
acpi_gbl_debugger_configuration = DEBUGGER_THREADING;
/* Hardware oriented */
acpi_gbl_gpe0enable_register_save = NULL;
acpi_gbl_gpe1_enable_register_save = NULL;
acpi_gbl_original_mode = SYS_MODE_UNKNOWN; /* original ACPI/legacy mode */
acpi_gbl_gpe_registers = NULL;
acpi_gbl_gpe_info = NULL;
/* Namespace */
acpi_gbl_root_node = NULL;
acpi_gbl_root_node_struct.name = ACPI_ROOT_NAME;
acpi_gbl_root_node_struct.data_type = ACPI_DESC_TYPE_NAMED;
acpi_gbl_root_node_struct.type = ACPI_TYPE_ANY;
acpi_gbl_root_node_struct.child = NULL;
acpi_gbl_root_node_struct.peer = NULL;
acpi_gbl_root_node_struct.object = NULL;
acpi_gbl_root_node_struct.flags = ANOBJ_END_OF_PEER_LIST;
#ifdef ACPI_DEBUG
acpi_gbl_lowest_stack_pointer = ACPI_UINT32_MAX;
#endif
return_VOID;
}
void *
AcpiOsAcquireObject (
ACPI_MEMORY_LIST *Cache)
{
ACPI_STATUS Status;
void *Object;
ACPI_FUNCTION_NAME (OsAcquireObject);
if (!Cache)
{
return_PTR (NULL);
}
Status = AcpiUtAcquireMutex (ACPI_MTX_CACHES);
if (ACPI_FAILURE (Status))
{
return_PTR (NULL);
}
ACPI_MEM_TRACKING (Cache->Requests++);
/* Check the cache first */
if (Cache->ListHead)
{
/* There is an object available, use it */
Object = Cache->ListHead;
Cache->ListHead = ACPI_GET_DESCRIPTOR_PTR (Object);
Cache->CurrentDepth--;
ACPI_MEM_TRACKING (Cache->Hits++);
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
"Object %p from %s cache\n", Object, Cache->ListName));
Status = AcpiUtReleaseMutex (ACPI_MTX_CACHES);
if (ACPI_FAILURE (Status))
{
return_PTR (NULL);
}
/* Clear (zero) the previously used Object */
ACPI_MEMSET (Object, 0, Cache->ObjectSize);
}
else
{
/* The cache is empty, create a new object */
ACPI_MEM_TRACKING (Cache->TotalAllocated++);
#ifdef ACPI_DBG_TRACK_ALLOCATIONS
if ((Cache->TotalAllocated - Cache->TotalFreed) > Cache->MaxOccupied)
{
Cache->MaxOccupied = Cache->TotalAllocated - Cache->TotalFreed;
}
#endif
/* Avoid deadlock with ACPI_ALLOCATE_ZEROED */
Status = AcpiUtReleaseMutex (ACPI_MTX_CACHES);
if (ACPI_FAILURE (Status))
{
return_PTR (NULL);
}
Object = ACPI_ALLOCATE_ZEROED (Cache->ObjectSize);
if (!Object)
{
return_PTR (NULL);
}
}
return_PTR (Object);
}
void
acpi_ut_init_globals (
void)
{
u32 i;
ACPI_FUNCTION_TRACE ("ut_init_globals");
/* Memory allocation and cache lists */
ACPI_MEMSET (acpi_gbl_memory_lists, 0, sizeof (struct acpi_memory_list) * ACPI_NUM_MEM_LISTS);
acpi_gbl_memory_lists[ACPI_MEM_LIST_STATE].link_offset = (u16) ACPI_PTR_DIFF (&(((union acpi_generic_state *) NULL)->common.next), NULL);
acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE].link_offset = (u16) ACPI_PTR_DIFF (&(((union acpi_parse_object *) NULL)->common.next), NULL);
acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE_EXT].link_offset = (u16) ACPI_PTR_DIFF (&(((union acpi_parse_object *) NULL)->common.next), NULL);
acpi_gbl_memory_lists[ACPI_MEM_LIST_OPERAND].link_offset = (u16) ACPI_PTR_DIFF (&(((union acpi_operand_object *) NULL)->cache.next), NULL);
acpi_gbl_memory_lists[ACPI_MEM_LIST_WALK].link_offset = (u16) ACPI_PTR_DIFF (&(((struct acpi_walk_state *) NULL)->next), NULL);
acpi_gbl_memory_lists[ACPI_MEM_LIST_NSNODE].object_size = sizeof (struct acpi_namespace_node);
acpi_gbl_memory_lists[ACPI_MEM_LIST_STATE].object_size = sizeof (union acpi_generic_state);
acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE].object_size = sizeof (struct acpi_parse_obj_common);
acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE_EXT].object_size = sizeof (struct acpi_parse_obj_named);
acpi_gbl_memory_lists[ACPI_MEM_LIST_OPERAND].object_size = sizeof (union acpi_operand_object);
acpi_gbl_memory_lists[ACPI_MEM_LIST_WALK].object_size = sizeof (struct acpi_walk_state);
acpi_gbl_memory_lists[ACPI_MEM_LIST_STATE].max_cache_depth = ACPI_MAX_STATE_CACHE_DEPTH;
acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE].max_cache_depth = ACPI_MAX_PARSE_CACHE_DEPTH;
acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE_EXT].max_cache_depth = ACPI_MAX_EXTPARSE_CACHE_DEPTH;
acpi_gbl_memory_lists[ACPI_MEM_LIST_OPERAND].max_cache_depth = ACPI_MAX_OBJECT_CACHE_DEPTH;
acpi_gbl_memory_lists[ACPI_MEM_LIST_WALK].max_cache_depth = ACPI_MAX_WALK_CACHE_DEPTH;
ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_GLOBAL].list_name = "Global Memory Allocation");
ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_NSNODE].list_name = "Namespace Nodes");
ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_STATE].list_name = "State Object Cache");
ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE].list_name = "Parse Node Cache");
ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE_EXT].list_name = "Extended Parse Node Cache");
ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_OPERAND].list_name = "Operand Object Cache");
ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_WALK].list_name = "Tree Walk Node Cache");
/* ACPI table structure */
for (i = 0; i < NUM_ACPI_TABLE_TYPES; i++)
{
acpi_gbl_table_lists[i].next = NULL;
acpi_gbl_table_lists[i].count = 0;
}
/* Mutex locked flags */
for (i = 0; i < NUM_MUTEX; i++)
{
acpi_gbl_mutex_info[i].mutex = NULL;
acpi_gbl_mutex_info[i].owner_id = ACPI_MUTEX_NOT_ACQUIRED;
acpi_gbl_mutex_info[i].use_count = 0;
}
/* GPE support */
acpi_gbl_gpe_xrupt_list_head = NULL;
acpi_gbl_gpe_fadt_blocks[0] = NULL;
acpi_gbl_gpe_fadt_blocks[1] = NULL;
/* Global notify handlers */
acpi_gbl_system_notify.handler = NULL;
acpi_gbl_device_notify.handler = NULL;
acpi_gbl_exception_handler = NULL;
acpi_gbl_init_handler = NULL;
/* Global "typed" ACPI table pointers */
acpi_gbl_RSDP = NULL;
acpi_gbl_XSDT = NULL;
acpi_gbl_FACS = NULL;
acpi_gbl_FADT = NULL;
acpi_gbl_DSDT = NULL;
/* Global Lock support */
acpi_gbl_global_lock_acquired = FALSE;
acpi_gbl_global_lock_thread_count = 0;
acpi_gbl_global_lock_handle = 0;
/* Miscellaneous variables */
acpi_gbl_table_flags = ACPI_PHYSICAL_POINTER;
acpi_gbl_rsdp_original_location = 0;
acpi_gbl_cm_single_step = FALSE;
acpi_gbl_db_terminate_threads = FALSE;
acpi_gbl_shutdown = FALSE;
acpi_gbl_ns_lookup_count = 0;
acpi_gbl_ps_find_count = 0;
acpi_gbl_acpi_hardware_present = TRUE;
acpi_gbl_next_table_owner_id = ACPI_FIRST_TABLE_ID;
acpi_gbl_next_method_owner_id = ACPI_FIRST_METHOD_ID;
acpi_gbl_debugger_configuration = DEBUGGER_THREADING;
acpi_gbl_db_output_flags = ACPI_DB_CONSOLE_OUTPUT;
/* Hardware oriented */
acpi_gbl_events_initialized = FALSE;
acpi_gbl_system_awake_and_running = TRUE;
/* Namespace */
acpi_gbl_root_node = NULL;
acpi_gbl_root_node_struct.name.integer = ACPI_ROOT_NAME;
acpi_gbl_root_node_struct.descriptor = ACPI_DESC_TYPE_NAMED;
acpi_gbl_root_node_struct.type = ACPI_TYPE_DEVICE;
acpi_gbl_root_node_struct.child = NULL;
acpi_gbl_root_node_struct.peer = NULL;
acpi_gbl_root_node_struct.object = NULL;
acpi_gbl_root_node_struct.flags = ANOBJ_END_OF_PEER_LIST;
#ifdef ACPI_DEBUG_OUTPUT
acpi_gbl_lowest_stack_pointer = ACPI_SIZE_MAX;
#endif
return_VOID;
}
void acpi_ns_delete_children(struct acpi_namespace_node *parent_node)
{
struct acpi_namespace_node *child_node;
struct acpi_namespace_node *next_node;
u8 flags;
ACPI_FUNCTION_TRACE_PTR(ns_delete_children, parent_node);
if (!parent_node) {
return_VOID;
}
/* If no children, all done! */
child_node = parent_node->child;
if (!child_node) {
return_VOID;
}
/*
* Deallocate all children at this level
*/
do {
/* Get the things we need */
next_node = child_node->peer;
flags = child_node->flags;
/* Grandchildren should have all been deleted already */
if (child_node->child) {
ACPI_ERROR((AE_INFO, "Found a grandchild! P=%p C=%p",
parent_node, child_node));
}
/* Now we can free this child object */
ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_freed++);
ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
"Object %p, Remaining %X\n", child_node,
acpi_gbl_current_node_count));
/*
* Detach an object if there is one, then free the child node
*/
acpi_ns_detach_object(child_node);
/* Now we can delete the node */
(void)acpi_os_release_object(acpi_gbl_namespace_cache,
child_node);
/* And move on to the next child in the list */
child_node = next_node;
} while (!(flags & ANOBJ_END_OF_PEER_LIST));
/* Clear the parent's child pointer */
parent_node->child = NULL;
return_VOID;
}
