/*******************************************************************************
*
* FUNCTION: acpi_unload_table
*
* PARAMETERS: table_type - Type of table to be unloaded
*
* RETURN: Status
*
* DESCRIPTION: This routine is used to force the unload of a table
*
******************************************************************************/
acpi_status acpi_unload_table(acpi_table_type table_type)
{
struct acpi_table_desc *table_desc;
ACPI_FUNCTION_TRACE(acpi_unload_table);
/* Parameter validation */
if (table_type > ACPI_TABLE_ID_MAX) {
return_ACPI_STATUS(AE_BAD_PARAMETER);
}
/* Find all tables of the requested type */
table_desc = acpi_gbl_table_lists[table_type].next;
if (!table_desc) {
return_ACPI_STATUS(AE_NOT_EXIST);
}
while (table_desc) {
/*
* Delete all namespace objects owned by this table. Note that these
* objects can appear anywhere in the namespace by virtue of the AML
* "Scope" operator. Thus, we need to track ownership by an ID, not
* simply a position within the hierarchy
*/
acpi_ns_delete_namespace_by_owner(table_desc->owner_id);
table_desc = table_desc->next;
}
/* Delete (or unmap) all tables of this type */
acpi_tb_delete_tables_by_type(table_type);
return_ACPI_STATUS(AE_OK);
}
void acpi_tb_delete_all_tables(void)
{
acpi_table_type type;
/*
* Free memory allocated for ACPI tables
* Memory can either be mapped or allocated
*/
for (type = 0; type < (ACPI_TABLE_ID_MAX + 1); type++) {
acpi_tb_delete_tables_by_type(type);
}
}
acpi_status
acpi_tb_get_required_tables (
void)
{
acpi_status status = AE_OK;
u32 i;
struct acpi_table_desc table_info;
struct acpi_pointer address;
ACPI_FUNCTION_TRACE ("tb_get_required_tables");
ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "%d ACPI tables in RSDT\n",
acpi_gbl_rsdt_table_count));
address.pointer_type = acpi_gbl_table_flags | ACPI_LOGICAL_ADDRESSING;
/*
* Loop through all table pointers found in RSDT.
* This will NOT include the FACS and DSDT - we must get
* them after the loop.
*
* The only tables we are interested in getting here is the FADT and
* any SSDTs.
*/
for (i = 0; i < acpi_gbl_rsdt_table_count; i++) {
/* Get the table address from the common internal XSDT */
address.pointer.value = acpi_gbl_XSDT->table_offset_entry[i];
/*
* Get the tables needed by this subsystem (FADT and any SSDTs).
* NOTE: All other tables are completely ignored at this time.
*/
status = acpi_tb_get_primary_table (&address, &table_info);
if ((status != AE_OK) && (status != AE_TABLE_NOT_SUPPORTED)) {
ACPI_REPORT_WARNING (("%s, while getting table at %8.8X%8.8X\n",
acpi_format_exception (status),
ACPI_FORMAT_UINT64 (address.pointer.value)));
}
}
/* We must have a FADT to continue */
if (!acpi_gbl_FADT) {
ACPI_REPORT_ERROR (("No FADT present in RSDT/XSDT\n"));
return_ACPI_STATUS (AE_NO_ACPI_TABLES);
}
/*
* Convert the FADT to a common format. This allows earlier revisions of the
* table to coexist with newer versions, using common access code.
*/
status = acpi_tb_convert_table_fadt ();
if (ACPI_FAILURE (status)) {
ACPI_REPORT_ERROR (("Could not convert FADT to internal common format\n"));
return_ACPI_STATUS (status);
}
/*
* Get the FACS (Pointed to by the FADT)
*/
address.pointer.value = acpi_gbl_FADT->xfirmware_ctrl;
status = acpi_tb_get_secondary_table (&address, FACS_SIG, &table_info);
if (ACPI_FAILURE (status)) {
ACPI_REPORT_ERROR (("Could not get/install the FACS, %s\n",
acpi_format_exception (status)));
return_ACPI_STATUS (status);
}
/*
* Create the common FACS pointer table
* (Contains pointers to the original table)
*/
status = acpi_tb_build_common_facs (&table_info);
if (ACPI_FAILURE (status)) {
return_ACPI_STATUS (status);
}
/*
* Get/install the DSDT (Pointed to by the FADT)
*/
address.pointer.value = acpi_gbl_FADT->Xdsdt;
status = acpi_tb_get_secondary_table (&address, DSDT_SIG, &table_info);
if (ACPI_FAILURE (status)) {
ACPI_REPORT_ERROR (("Could not get/install the DSDT\n"));
return_ACPI_STATUS (status);
}
/* Set Integer Width (32/64) based upon DSDT revision */
acpi_ut_set_integer_width (acpi_gbl_DSDT->revision);
/* Dump the entire DSDT */
ACPI_DEBUG_PRINT ((ACPI_DB_TABLES,
"Hex dump of entire DSDT, size %d (0x%X), Integer width = %d\n",
acpi_gbl_DSDT->length, acpi_gbl_DSDT->length, acpi_gbl_integer_bit_width));
ACPI_DUMP_BUFFER ((u8 *) acpi_gbl_DSDT, acpi_gbl_DSDT->length);
/* Always delete the RSDP mapping, we are done with it */
acpi_tb_delete_tables_by_type (ACPI_TABLE_RSDP);
return_ACPI_STATUS (status);
}
