void
acpi_tb_free_acpi_tables_of_type (
acpi_table_desc *list_head)
{
acpi_table_desc *table_desc;
u32 count;
u32 i;
FUNCTION_TRACE_PTR ("Tb_free_acpi_tables_of_type", list_head);
/* Get the head of the list */
table_desc = list_head;
count = list_head->count;
/*
* Walk the entire list, deleting both the allocated tables
* and the table descriptors
*/
for (i = 0; i < count; i++) {
table_desc = acpi_tb_uninstall_table (table_desc);
}
return_VOID;
}
/*******************************************************************************
*
* FUNCTION: acpi_reallocate_root_table
*
* PARAMETERS: None
*
* RETURN: Status
*
* DESCRIPTION: Reallocate Root Table List into dynamic memory. Copies the
* root list from the previously provided scratch area. Should
* be called once dynamic memory allocation is available in the
* kernel.
*
******************************************************************************/
acpi_status ACPI_INIT_FUNCTION acpi_reallocate_root_table(void)
{
acpi_status status;
struct acpi_table_desc *table_desc;
u32 i, j;
ACPI_FUNCTION_TRACE(acpi_reallocate_root_table);
/*
* Only reallocate the root table if the host provided a static buffer
* for the table array in the call to acpi_initialize_tables.
*/
if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) {
return_ACPI_STATUS(AE_SUPPORT);
}
(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
/*
* Ensure OS early boot logic, which is required by some hosts. If the
* table state is reported to be wrong, developers should fix the
* issue by invoking acpi_put_table() for the reported table during the
* early stage.
*/
for (i = 0; i < acpi_gbl_root_table_list.current_table_count; ++i) {
table_desc = &acpi_gbl_root_table_list.tables[i];
if (table_desc->pointer) {
ACPI_ERROR((AE_INFO,
"Table [%4.4s] is not invalidated during early boot stage",
table_desc->signature.ascii));
}
}
if (!acpi_gbl_enable_table_validation) {
/*
* Now it's safe to do full table validation. We can do deferred
* table initilization here once the flag is set.
*/
acpi_gbl_enable_table_validation = TRUE;
for (i = 0; i < acpi_gbl_root_table_list.current_table_count;
++i) {
table_desc = &acpi_gbl_root_table_list.tables[i];
if (!(table_desc->flags & ACPI_TABLE_IS_VERIFIED)) {
status =
acpi_tb_verify_temp_table(table_desc, NULL,
&j);
if (ACPI_FAILURE(status)) {
acpi_tb_uninstall_table(table_desc);
}
}
}
}
acpi_gbl_root_table_list.flags |= ACPI_ROOT_ALLOW_RESIZE;
status = acpi_tb_resize_root_table_list();
acpi_gbl_root_table_list.flags |= ACPI_ROOT_ORIGIN_ALLOCATED;
(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
return_ACPI_STATUS(status);
}
void acpi_tb_terminate(void)
{
u32 i;
ACPI_FUNCTION_TRACE(tb_terminate);
(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
/* Delete the individual tables */
for (i = 0; i < acpi_gbl_root_table_list.current_table_count; i++) {
acpi_tb_uninstall_table(&acpi_gbl_root_table_list.tables[i]);
}
/*
* Delete the root table array if allocated locally. Array cannot be
* mapped, so we don't need to check for that flag.
*/
if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) {
ACPI_FREE(acpi_gbl_root_table_list.tables);
}
acpi_gbl_root_table_list.tables = NULL;
acpi_gbl_root_table_list.flags = 0;
acpi_gbl_root_table_list.current_table_count = 0;
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "ACPI Tables freed\n"));
(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
return_VOID;
}
acpi_status
acpi_load_table (
acpi_table_header *table_ptr)
{
acpi_status status;
acpi_table_desc table_info;
FUNCTION_TRACE ("Acpi_load_table");
if (!table_ptr) {
return_ACPI_STATUS (AE_BAD_PARAMETER);
}
/* Copy the table to a local buffer */
status = acpi_tb_get_table (0, table_ptr, &table_info);
if (ACPI_FAILURE (status)) {
return_ACPI_STATUS (status);
}
/* Install the new table into the local data structures */
status = acpi_tb_install_table (NULL, &table_info);
if (ACPI_FAILURE (status)) {
/* Free table allocated by Acpi_tb_get_table */
acpi_tb_delete_single_table (&table_info);
return_ACPI_STATUS (status);
}
status = acpi_ns_load_table (table_info.installed_desc, acpi_gbl_root_node);
if (ACPI_FAILURE (status)) {
/* Uninstall table and free the buffer */
acpi_tb_uninstall_table (table_info.installed_desc);
return_ACPI_STATUS (status);
}
return_ACPI_STATUS (status);
}
acpi_status acpi_ex_unload_table(union acpi_operand_object *ddb_handle)
{
acpi_status status = AE_OK;
union acpi_operand_object *table_desc = ddb_handle;
struct acpi_table_desc *table_info;
ACPI_FUNCTION_TRACE("ex_unload_table");
/*
* Validate the handle
* Although the handle is partially validated in acpi_ex_reconfiguration(),
* when it calls acpi_ex_resolve_operands(), the handle is more completely
* validated here.
*/
if ((!ddb_handle) ||
(ACPI_GET_DESCRIPTOR_TYPE(ddb_handle) != ACPI_DESC_TYPE_OPERAND) ||
(ACPI_GET_OBJECT_TYPE(ddb_handle) != ACPI_TYPE_LOCAL_REFERENCE)) {
return_ACPI_STATUS(AE_BAD_PARAMETER);
}
/* Get the actual table descriptor from the ddb_handle */
table_info = (struct acpi_table_desc *)table_desc->reference.object;
/*
* Delete the entire namespace under this table Node
* (Offset contains the table_id)
*/
acpi_ns_delete_namespace_by_owner(table_info->owner_id);
acpi_ut_release_owner_id(&table_info->owner_id);
/* Delete the table itself */
(void)acpi_tb_uninstall_table(table_info->installed_desc);
/* Delete the table descriptor (ddb_handle) */
acpi_ut_remove_reference(table_desc);
return_ACPI_STATUS(status);
}
acpi_status
acpi_load_table (
struct acpi_table_header *table_ptr)
{
acpi_status status;
struct acpi_table_desc table_info;
struct acpi_pointer address;
ACPI_FUNCTION_TRACE ("acpi_load_table");
if (!table_ptr) {
return_ACPI_STATUS (AE_BAD_PARAMETER);
}
/* Copy the table to a local buffer */
address.pointer_type = ACPI_LOGICAL_POINTER | ACPI_LOGICAL_ADDRESSING;
address.pointer.logical = table_ptr;
status = acpi_tb_get_table_body (&address, table_ptr, &table_info);
if (ACPI_FAILURE (status)) {
return_ACPI_STATUS (status);
}
/* Install the new table into the local data structures */
status = acpi_tb_install_table (&table_info);
if (ACPI_FAILURE (status)) {
/* Free table allocated by acpi_tb_get_table_body */
acpi_tb_delete_single_table (&table_info);
return_ACPI_STATUS (status);
}
/* Convert the table to common format if necessary */
switch (table_info.type) {
case ACPI_TABLE_FADT:
status = acpi_tb_convert_table_fadt ();
break;
case ACPI_TABLE_FACS:
status = acpi_tb_build_common_facs (&table_info);
break;
default:
/* Load table into namespace if it contains executable AML */
status = acpi_ns_load_table (table_info.installed_desc, acpi_gbl_root_node);
break;
}
if (ACPI_FAILURE (status)) {
/* Uninstall table and free the buffer */
(void) acpi_tb_uninstall_table (table_info.installed_desc);
}
return_ACPI_STATUS (status);
}
static acpi_status
acpi_ex_add_table(struct acpi_table_header *table,
struct acpi_namespace_node *parent_node,
union acpi_operand_object **ddb_handle)
{
acpi_status status;
struct acpi_table_desc table_info;
union acpi_operand_object *obj_desc;
ACPI_FUNCTION_TRACE(ex_add_table);
/* Create an object to be the table handle */
obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_REFERENCE);
if (!obj_desc) {
return_ACPI_STATUS(AE_NO_MEMORY);
}
/* Init the table handle */
obj_desc->reference.opcode = AML_LOAD_OP;
*ddb_handle = obj_desc;
/* Install the new table into the local data structures */
ACPI_MEMSET(&table_info, 0, sizeof(struct acpi_table_desc));
table_info.type = ACPI_TABLE_ID_SSDT;
table_info.pointer = table;
table_info.length = (acpi_size) table->length;
table_info.allocation = ACPI_MEM_ALLOCATED;
status = acpi_tb_install_table(&table_info);
obj_desc->reference.object = table_info.installed_desc;
if (ACPI_FAILURE(status)) {
if (status == AE_ALREADY_EXISTS) {
/* Table already exists, just return the handle */
return_ACPI_STATUS(AE_OK);
}
goto cleanup;
}
/* Add the table to the namespace */
status = acpi_ns_load_table(table_info.installed_desc, parent_node);
if (ACPI_FAILURE(status)) {
/* Uninstall table on error */
(void)acpi_tb_uninstall_table(table_info.installed_desc);
goto cleanup;
}
return_ACPI_STATUS(AE_OK);
cleanup:
acpi_ut_remove_reference(obj_desc);
*ddb_handle = NULL;
return_ACPI_STATUS(status);
}
void acpi_tb_delete_tables_by_type(acpi_table_type type)
{
struct acpi_table_desc *table_desc;
u32 count;
u32 i;
ACPI_FUNCTION_TRACE_U32(tb_delete_tables_by_type, type);
if (type > ACPI_TABLE_ID_MAX) {
return_VOID;
}
if (ACPI_FAILURE(acpi_ut_acquire_mutex(ACPI_MTX_TABLES))) {
return;
}
/* Clear the appropriate "typed" global table pointer */
switch (type) {
case ACPI_TABLE_ID_RSDP:
acpi_gbl_RSDP = NULL;
break;
case ACPI_TABLE_ID_DSDT:
acpi_gbl_DSDT = NULL;
break;
case ACPI_TABLE_ID_FADT:
acpi_gbl_FADT = NULL;
break;
case ACPI_TABLE_ID_FACS:
acpi_gbl_FACS = NULL;
break;
case ACPI_TABLE_ID_XSDT:
acpi_gbl_XSDT = NULL;
break;
case ACPI_TABLE_ID_SSDT:
case ACPI_TABLE_ID_PSDT:
default:
break;
}
/*
* Free the table
* 1) Get the head of the list
*/
table_desc = acpi_gbl_table_lists[type].next;
count = acpi_gbl_table_lists[type].count;
/*
* 2) Walk the entire list, deleting both the allocated tables
* and the table descriptors
*/
for (i = 0; i < count; i++) {
table_desc = acpi_tb_uninstall_table(table_desc);
}
(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
return_VOID;
}
