[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/acpi/acpica/tbdata.c b/src/kernel/linux/v4.14/drivers/acpi/acpica/tbdata.c
new file mode 100644
index 0000000..b19a2f0
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/acpi/acpica/tbdata.c
@@ -0,0 +1,1100 @@
+/******************************************************************************
+ *
+ * Module Name: tbdata - Table manager data structure functions
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2017, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acnamesp.h"
+#include "actables.h"
+#include "acevents.h"
+
+#define _COMPONENT ACPI_TABLES
+ACPI_MODULE_NAME("tbdata")
+
+/* Local prototypes */
+static acpi_status
+acpi_tb_check_duplication(struct acpi_table_desc *table_desc, u32 *table_index);
+
+static u8
+acpi_tb_compare_tables(struct acpi_table_desc *table_desc, u32 table_index);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_compare_tables
+ *
+ * PARAMETERS: table_desc - Table 1 descriptor to be compared
+ * table_index - Index of table 2 to be compared
+ *
+ * RETURN: TRUE if both tables are identical.
+ *
+ * DESCRIPTION: This function compares a table with another table that has
+ * already been installed in the root table list.
+ *
+ ******************************************************************************/
+
+static u8
+acpi_tb_compare_tables(struct acpi_table_desc *table_desc, u32 table_index)
+{
+ acpi_status status = AE_OK;
+ u8 is_identical;
+ struct acpi_table_header *table;
+ u32 table_length;
+ u8 table_flags;
+
+ status =
+ acpi_tb_acquire_table(&acpi_gbl_root_table_list.tables[table_index],
+ &table, &table_length, &table_flags);
+ if (ACPI_FAILURE(status)) {
+ return (FALSE);
+ }
+
+ /*
+ * Check for a table match on the entire table length,
+ * not just the header.
+ */
+ is_identical = (u8)((table_desc->length != table_length ||
+ memcmp(table_desc->pointer, table, table_length)) ?
+ FALSE : TRUE);
+
+ /* Release the acquired table */
+
+ acpi_tb_release_table(table, table_length, table_flags);
+ return (is_identical);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_init_table_descriptor
+ *
+ * PARAMETERS: table_desc - Table descriptor
+ * address - Physical address of the table
+ * flags - Allocation flags of the table
+ * table - Pointer to the table
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Initialize a new table descriptor
+ *
+ ******************************************************************************/
+
+void
+acpi_tb_init_table_descriptor(struct acpi_table_desc *table_desc,
+ acpi_physical_address address,
+ u8 flags, struct acpi_table_header *table)
+{
+
+ /*
+ * Initialize the table descriptor. Set the pointer to NULL, since the
+ * table is not fully mapped at this time.
+ */
+ memset(table_desc, 0, sizeof(struct acpi_table_desc));
+ table_desc->address = address;
+ table_desc->length = table->length;
+ table_desc->flags = flags;
+ ACPI_MOVE_32_TO_32(table_desc->signature.ascii, table->signature);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_acquire_table
+ *
+ * PARAMETERS: table_desc - Table descriptor
+ * table_ptr - Where table is returned
+ * table_length - Where table length is returned
+ * table_flags - Where table allocation flags are returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Acquire an ACPI table. It can be used for tables not
+ * maintained in the acpi_gbl_root_table_list.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_tb_acquire_table(struct acpi_table_desc *table_desc,
+ struct acpi_table_header **table_ptr,
+ u32 *table_length, u8 *table_flags)
+{
+ struct acpi_table_header *table = NULL;
+
+ switch (table_desc->flags & ACPI_TABLE_ORIGIN_MASK) {
+ case ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL:
+
+ table =
+ acpi_os_map_memory(table_desc->address, table_desc->length);
+ break;
+
+ case ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL:
+ case ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL:
+
+ table = ACPI_CAST_PTR(struct acpi_table_header,
+ ACPI_PHYSADDR_TO_PTR(table_desc->
+ address));
+ break;
+
+ default:
+
+ break;
+ }
+
+ /* Table is not valid yet */
+
+ if (!table) {
+ return (AE_NO_MEMORY);
+ }
+
+ /* Fill the return values */
+
+ *table_ptr = table;
+ *table_length = table_desc->length;
+ *table_flags = table_desc->flags;
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_release_table
+ *
+ * PARAMETERS: table - Pointer for the table
+ * table_length - Length for the table
+ * table_flags - Allocation flags for the table
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Release a table. The inverse of acpi_tb_acquire_table().
+ *
+ ******************************************************************************/
+
+void
+acpi_tb_release_table(struct acpi_table_header *table,
+ u32 table_length, u8 table_flags)
+{
+
+ switch (table_flags & ACPI_TABLE_ORIGIN_MASK) {
+ case ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL:
+
+ acpi_os_unmap_memory(table, table_length);
+ break;
+
+ case ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL:
+ case ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL:
+ default:
+
+ break;
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_acquire_temp_table
+ *
+ * PARAMETERS: table_desc - Table descriptor to be acquired
+ * address - Address of the table
+ * flags - Allocation flags of the table
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function validates the table header to obtain the length
+ * of a table and fills the table descriptor to make its state as
+ * "INSTALLED". Such a table descriptor is only used for verified
+ * installation.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_tb_acquire_temp_table(struct acpi_table_desc *table_desc,
+ acpi_physical_address address, u8 flags)
+{
+ struct acpi_table_header *table_header;
+
+ switch (flags & ACPI_TABLE_ORIGIN_MASK) {
+ case ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL:
+
+ /* Get the length of the full table from the header */
+
+ table_header =
+ acpi_os_map_memory(address,
+ sizeof(struct acpi_table_header));
+ if (!table_header) {
+ return (AE_NO_MEMORY);
+ }
+
+ acpi_tb_init_table_descriptor(table_desc, address, flags,
+ table_header);
+ acpi_os_unmap_memory(table_header,
+ sizeof(struct acpi_table_header));
+ return (AE_OK);
+
+ case ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL:
+ case ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL:
+
+ table_header = ACPI_CAST_PTR(struct acpi_table_header,
+ ACPI_PHYSADDR_TO_PTR(address));
+ if (!table_header) {
+ return (AE_NO_MEMORY);
+ }
+
+ acpi_tb_init_table_descriptor(table_desc, address, flags,
+ table_header);
+ return (AE_OK);
+
+ default:
+
+ break;
+ }
+
+ /* Table is not valid yet */
+
+ return (AE_NO_MEMORY);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_release_temp_table
+ *
+ * PARAMETERS: table_desc - Table descriptor to be released
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: The inverse of acpi_tb_acquire_temp_table().
+ *
+ *****************************************************************************/
+
+void acpi_tb_release_temp_table(struct acpi_table_desc *table_desc)
+{
+
+ /*
+ * Note that the .Address is maintained by the callers of
+ * acpi_tb_acquire_temp_table(), thus do not invoke acpi_tb_uninstall_table()
+ * where .Address will be freed.
+ */
+ acpi_tb_invalidate_table(table_desc);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_tb_validate_table
+ *
+ * PARAMETERS: table_desc - Table descriptor
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function is called to validate the table, the returned
+ * table descriptor is in "VALIDATED" state.
+ *
+ *****************************************************************************/
+
+acpi_status acpi_tb_validate_table(struct acpi_table_desc *table_desc)
+{
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE(tb_validate_table);
+
+ /* Validate the table if necessary */
+
+ if (!table_desc->pointer) {
+ status = acpi_tb_acquire_table(table_desc, &table_desc->pointer,
+ &table_desc->length,
+ &table_desc->flags);
+ if (!table_desc->pointer) {
+ status = AE_NO_MEMORY;
+ }
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_invalidate_table
+ *
+ * PARAMETERS: table_desc - Table descriptor
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Invalidate one internal ACPI table, this is the inverse of
+ * acpi_tb_validate_table().
+ *
+ ******************************************************************************/
+
+void acpi_tb_invalidate_table(struct acpi_table_desc *table_desc)
+{
+
+ ACPI_FUNCTION_TRACE(tb_invalidate_table);
+
+ /* Table must be validated */
+
+ if (!table_desc->pointer) {
+ return_VOID;
+ }
+
+ acpi_tb_release_table(table_desc->pointer, table_desc->length,
+ table_desc->flags);
+ table_desc->pointer = NULL;
+
+ return_VOID;
+}
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_tb_validate_temp_table
+ *
+ * PARAMETERS: table_desc - Table descriptor
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function is called to validate the table, the returned
+ * table descriptor is in "VALIDATED" state.
+ *
+ *****************************************************************************/
+
+acpi_status acpi_tb_validate_temp_table(struct acpi_table_desc *table_desc)
+{
+
+ if (!table_desc->pointer && !acpi_gbl_enable_table_validation) {
+ /*
+ * Only validates the header of the table.
+ * Note that Length contains the size of the mapping after invoking
+ * this work around, this value is required by
+ * acpi_tb_release_temp_table().
+ * We can do this because in acpi_init_table_descriptor(), the Length
+ * field of the installed descriptor is filled with the actual
+ * table length obtaining from the table header.
+ */
+ table_desc->length = sizeof(struct acpi_table_header);
+ }
+
+ return (acpi_tb_validate_table(table_desc));
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_check_duplication
+ *
+ * PARAMETERS: table_desc - Table descriptor
+ * table_index - Where the table index is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Avoid installing duplicated tables. However table override and
+ * user aided dynamic table load is allowed, thus comparing the
+ * address of the table is not sufficient, and checking the entire
+ * table content is required.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_tb_check_duplication(struct acpi_table_desc *table_desc, u32 *table_index)
+{
+ u32 i;
+
+ ACPI_FUNCTION_TRACE(tb_check_duplication);
+
+ /* Check if table is already registered */
+
+ for (i = 0; i < acpi_gbl_root_table_list.current_table_count; ++i) {
+
+ /* Do not compare with unverified tables */
+
+ if (!
+ (acpi_gbl_root_table_list.tables[i].
+ flags & ACPI_TABLE_IS_VERIFIED)) {
+ continue;
+ }
+
+ /*
+ * Check for a table match on the entire table length,
+ * not just the header.
+ */
+ if (!acpi_tb_compare_tables(table_desc, i)) {
+ continue;
+ }
+
+ /*
+ * Note: the current mechanism does not unregister a table if it is
+ * dynamically unloaded. The related namespace entries are deleted,
+ * but the table remains in the root table list.
+ *
+ * The assumption here is that the number of different tables that
+ * will be loaded is actually small, and there is minimal overhead
+ * in just keeping the table in case it is needed again.
+ *
+ * If this assumption changes in the future (perhaps on large
+ * machines with many table load/unload operations), tables will
+ * need to be unregistered when they are unloaded, and slots in the
+ * root table list should be reused when empty.
+ */
+ if (acpi_gbl_root_table_list.tables[i].flags &
+ ACPI_TABLE_IS_LOADED) {
+
+ /* Table is still loaded, this is an error */
+
+ return_ACPI_STATUS(AE_ALREADY_EXISTS);
+ } else {
+ *table_index = i;
+ return_ACPI_STATUS(AE_CTRL_TERMINATE);
+ }
+ }
+
+ /* Indicate no duplication to the caller */
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_tb_verify_temp_table
+ *
+ * PARAMETERS: table_desc - Table descriptor
+ * signature - Table signature to verify
+ * table_index - Where the table index is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function is called to validate and verify the table, the
+ * returned table descriptor is in "VALIDATED" state.
+ * Note that 'TableIndex' is required to be set to !NULL to
+ * enable duplication check.
+ *
+ *****************************************************************************/
+
+acpi_status
+acpi_tb_verify_temp_table(struct acpi_table_desc *table_desc,
+ char *signature, u32 *table_index)
+{
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE(tb_verify_temp_table);
+
+ /* Validate the table */
+
+ status = acpi_tb_validate_temp_table(table_desc);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /* If a particular signature is expected (DSDT/FACS), it must match */
+
+ if (signature && !ACPI_COMPARE_NAME(&table_desc->signature, signature)) {
+ ACPI_BIOS_ERROR((AE_INFO,
+ "Invalid signature 0x%X for ACPI table, expected [%s]",
+ table_desc->signature.integer, signature));
+ status = AE_BAD_SIGNATURE;
+ goto invalidate_and_exit;
+ }
+
+ if (acpi_gbl_enable_table_validation) {
+
+ /* Verify the checksum */
+
+ status =
+ acpi_tb_verify_checksum(table_desc->pointer,
+ table_desc->length);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, AE_NO_MEMORY,
+ "%4.4s 0x%8.8X%8.8X"
+ " Attempted table install failed",
+ acpi_ut_valid_nameseg(table_desc->
+ signature.
+ ascii) ?
+ table_desc->signature.ascii : "????",
+ ACPI_FORMAT_UINT64(table_desc->
+ address)));
+
+ goto invalidate_and_exit;
+ }
+
+ /* Avoid duplications */
+
+ if (table_index) {
+ status =
+ acpi_tb_check_duplication(table_desc, table_index);
+ if (ACPI_FAILURE(status)) {
+ if (status != AE_CTRL_TERMINATE) {
+ ACPI_EXCEPTION((AE_INFO, AE_NO_MEMORY,
+ "%4.4s 0x%8.8X%8.8X"
+ " Table is duplicated",
+ acpi_ut_valid_nameseg
+ (table_desc->signature.
+ ascii) ? table_desc->
+ signature.
+ ascii : "????",
+ ACPI_FORMAT_UINT64
+ (table_desc->address)));
+ }
+
+ goto invalidate_and_exit;
+ }
+ }
+
+ table_desc->flags |= ACPI_TABLE_IS_VERIFIED;
+ }
+
+ return_ACPI_STATUS(status);
+
+invalidate_and_exit:
+ acpi_tb_invalidate_table(table_desc);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_resize_root_table_list
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Expand the size of global table array
+ *
+ ******************************************************************************/
+
+acpi_status acpi_tb_resize_root_table_list(void)
+{
+ struct acpi_table_desc *tables;
+ u32 table_count;
+ u32 current_table_count, max_table_count;
+ u32 i;
+
+ ACPI_FUNCTION_TRACE(tb_resize_root_table_list);
+
+ /* allow_resize flag is a parameter to acpi_initialize_tables */
+
+ if (!(acpi_gbl_root_table_list.flags & ACPI_ROOT_ALLOW_RESIZE)) {
+ ACPI_ERROR((AE_INFO,
+ "Resize of Root Table Array is not allowed"));
+ return_ACPI_STATUS(AE_SUPPORT);
+ }
+
+ /* Increase the Table Array size */
+
+ if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) {
+ table_count = acpi_gbl_root_table_list.max_table_count;
+ } else {
+ table_count = acpi_gbl_root_table_list.current_table_count;
+ }
+
+ max_table_count = table_count + ACPI_ROOT_TABLE_SIZE_INCREMENT;
+ tables = ACPI_ALLOCATE_ZEROED(((acpi_size)max_table_count) *
+ sizeof(struct acpi_table_desc));
+ if (!tables) {
+ ACPI_ERROR((AE_INFO,
+ "Could not allocate new root table array"));
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /* Copy and free the previous table array */
+
+ current_table_count = 0;
+ if (acpi_gbl_root_table_list.tables) {
+ for (i = 0; i < table_count; i++) {
+ if (acpi_gbl_root_table_list.tables[i].address) {
+ memcpy(tables + current_table_count,
+ acpi_gbl_root_table_list.tables + i,
+ sizeof(struct acpi_table_desc));
+ current_table_count++;
+ }
+ }
+
+ 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 = tables;
+ acpi_gbl_root_table_list.max_table_count = max_table_count;
+ acpi_gbl_root_table_list.current_table_count = current_table_count;
+ acpi_gbl_root_table_list.flags |= ACPI_ROOT_ORIGIN_ALLOCATED;
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_get_next_table_descriptor
+ *
+ * PARAMETERS: table_index - Where table index is returned
+ * table_desc - Where table descriptor is returned
+ *
+ * RETURN: Status and table index/descriptor.
+ *
+ * DESCRIPTION: Allocate a new ACPI table entry to the global table list
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_tb_get_next_table_descriptor(u32 *table_index,
+ struct acpi_table_desc **table_desc)
+{
+ acpi_status status;
+ u32 i;
+
+ /* Ensure that there is room for the table in the Root Table List */
+
+ if (acpi_gbl_root_table_list.current_table_count >=
+ acpi_gbl_root_table_list.max_table_count) {
+ status = acpi_tb_resize_root_table_list();
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+ }
+
+ i = acpi_gbl_root_table_list.current_table_count;
+ acpi_gbl_root_table_list.current_table_count++;
+
+ if (table_index) {
+ *table_index = i;
+ }
+ if (table_desc) {
+ *table_desc = &acpi_gbl_root_table_list.tables[i];
+ }
+
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_terminate
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Delete all internal ACPI tables
+ *
+ ******************************************************************************/
+
+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;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_delete_namespace_by_owner
+ *
+ * PARAMETERS: table_index - Table index
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Delete all namespace objects created when this table was loaded.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_tb_delete_namespace_by_owner(u32 table_index)
+{
+ acpi_owner_id owner_id;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(tb_delete_namespace_by_owner);
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ if (table_index >= acpi_gbl_root_table_list.current_table_count) {
+
+ /* The table index does not exist */
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+ return_ACPI_STATUS(AE_NOT_EXIST);
+ }
+
+ /* Get the owner ID for this table, used to delete namespace nodes */
+
+ owner_id = acpi_gbl_root_table_list.tables[table_index].owner_id;
+ (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+
+ /*
+ * Need to acquire the namespace writer lock to prevent interference
+ * with any concurrent namespace walks. The interpreter must be
+ * released during the deletion since the acquisition of the deletion
+ * lock may block, and also since the execution of a namespace walk
+ * must be allowed to use the interpreter.
+ */
+ status = acpi_ut_acquire_write_lock(&acpi_gbl_namespace_rw_lock);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ acpi_ns_delete_namespace_by_owner(owner_id);
+ acpi_ut_release_write_lock(&acpi_gbl_namespace_rw_lock);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_allocate_owner_id
+ *
+ * PARAMETERS: table_index - Table index
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Allocates owner_id in table_desc
+ *
+ ******************************************************************************/
+
+acpi_status acpi_tb_allocate_owner_id(u32 table_index)
+{
+ acpi_status status = AE_BAD_PARAMETER;
+
+ ACPI_FUNCTION_TRACE(tb_allocate_owner_id);
+
+ (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+ if (table_index < acpi_gbl_root_table_list.current_table_count) {
+ status =
+ acpi_ut_allocate_owner_id(&
+ (acpi_gbl_root_table_list.
+ tables[table_index].owner_id));
+ }
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_release_owner_id
+ *
+ * PARAMETERS: table_index - Table index
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Releases owner_id in table_desc
+ *
+ ******************************************************************************/
+
+acpi_status acpi_tb_release_owner_id(u32 table_index)
+{
+ acpi_status status = AE_BAD_PARAMETER;
+
+ ACPI_FUNCTION_TRACE(tb_release_owner_id);
+
+ (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+ if (table_index < acpi_gbl_root_table_list.current_table_count) {
+ acpi_ut_release_owner_id(&
+ (acpi_gbl_root_table_list.
+ tables[table_index].owner_id));
+ status = AE_OK;
+ }
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_get_owner_id
+ *
+ * PARAMETERS: table_index - Table index
+ * owner_id - Where the table owner_id is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: returns owner_id for the ACPI table
+ *
+ ******************************************************************************/
+
+acpi_status acpi_tb_get_owner_id(u32 table_index, acpi_owner_id *owner_id)
+{
+ acpi_status status = AE_BAD_PARAMETER;
+
+ ACPI_FUNCTION_TRACE(tb_get_owner_id);
+
+ (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+ if (table_index < acpi_gbl_root_table_list.current_table_count) {
+ *owner_id =
+ acpi_gbl_root_table_list.tables[table_index].owner_id;
+ status = AE_OK;
+ }
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_is_table_loaded
+ *
+ * PARAMETERS: table_index - Index into the root table
+ *
+ * RETURN: Table Loaded Flag
+ *
+ ******************************************************************************/
+
+u8 acpi_tb_is_table_loaded(u32 table_index)
+{
+ u8 is_loaded = FALSE;
+
+ (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+ if (table_index < acpi_gbl_root_table_list.current_table_count) {
+ is_loaded = (u8)
+ (acpi_gbl_root_table_list.tables[table_index].flags &
+ ACPI_TABLE_IS_LOADED);
+ }
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+ return (is_loaded);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_set_table_loaded_flag
+ *
+ * PARAMETERS: table_index - Table index
+ * is_loaded - TRUE if table is loaded, FALSE otherwise
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Sets the table loaded flag to either TRUE or FALSE.
+ *
+ ******************************************************************************/
+
+void acpi_tb_set_table_loaded_flag(u32 table_index, u8 is_loaded)
+{
+
+ (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+ if (table_index < acpi_gbl_root_table_list.current_table_count) {
+ if (is_loaded) {
+ acpi_gbl_root_table_list.tables[table_index].flags |=
+ ACPI_TABLE_IS_LOADED;
+ } else {
+ acpi_gbl_root_table_list.tables[table_index].flags &=
+ ~ACPI_TABLE_IS_LOADED;
+ }
+ }
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_load_table
+ *
+ * PARAMETERS: table_index - Table index
+ * parent_node - Where table index is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Load an ACPI table
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_tb_load_table(u32 table_index, struct acpi_namespace_node *parent_node)
+{
+ struct acpi_table_header *table;
+ acpi_status status;
+ acpi_owner_id owner_id;
+
+ ACPI_FUNCTION_TRACE(tb_load_table);
+
+ /*
+ * Note: Now table is "INSTALLED", it must be validated before
+ * using.
+ */
+ status = acpi_get_table_by_index(table_index, &table);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ status = acpi_ns_load_table(table_index, parent_node);
+
+ /* Execute any module-level code that was found in the table */
+
+ if (!acpi_gbl_parse_table_as_term_list
+ && acpi_gbl_group_module_level_code) {
+ acpi_ns_exec_module_code_list();
+ }
+
+ /*
+ * Update GPEs for any new _Lxx/_Exx methods. Ignore errors. The host is
+ * responsible for discovering any new wake GPEs by running _PRW methods
+ * that may have been loaded by this table.
+ */
+ status = acpi_tb_get_owner_id(table_index, &owner_id);
+ if (ACPI_SUCCESS(status)) {
+ acpi_ev_update_gpes(owner_id);
+ }
+
+ /* Invoke table handler */
+
+ acpi_tb_notify_table(ACPI_TABLE_EVENT_LOAD, table);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_install_and_load_table
+ *
+ * PARAMETERS: address - Physical address of the table
+ * flags - Allocation flags of the table
+ * override - Whether override should be performed
+ * table_index - Where table index is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Install and load an ACPI table
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_tb_install_and_load_table(acpi_physical_address address,
+ u8 flags, u8 override, u32 *table_index)
+{
+ acpi_status status;
+ u32 i;
+
+ ACPI_FUNCTION_TRACE(tb_install_and_load_table);
+
+ /* Install the table and load it into the namespace */
+
+ status = acpi_tb_install_standard_table(address, flags, TRUE,
+ override, &i);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+
+ status = acpi_tb_load_table(i, acpi_gbl_root_node);
+
+exit:
+ *table_index = i;
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_tb_install_and_load_table)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_unload_table
+ *
+ * PARAMETERS: table_index - Table index
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Unload an ACPI table
+ *
+ ******************************************************************************/
+
+acpi_status acpi_tb_unload_table(u32 table_index)
+{
+ acpi_status status = AE_OK;
+ struct acpi_table_header *table;
+
+ ACPI_FUNCTION_TRACE(tb_unload_table);
+
+ /* Ensure the table is still loaded */
+
+ if (!acpi_tb_is_table_loaded(table_index)) {
+ return_ACPI_STATUS(AE_NOT_EXIST);
+ }
+
+ /* Invoke table handler */
+
+ status = acpi_get_table_by_index(table_index, &table);
+ if (ACPI_SUCCESS(status)) {
+ acpi_tb_notify_table(ACPI_TABLE_EVENT_UNLOAD, table);
+ }
+
+ /* Delete the portion of the namespace owned by this table */
+
+ status = acpi_tb_delete_namespace_by_owner(table_index);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ (void)acpi_tb_release_owner_id(table_index);
+ acpi_tb_set_table_loaded_flag(table_index, FALSE);
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_tb_unload_table)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_notify_table
+ *
+ * PARAMETERS: event - Table event
+ * table - Validated table pointer
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Notify a table event to the users.
+ *
+ ******************************************************************************/
+
+void acpi_tb_notify_table(u32 event, void *table)
+{
+ /* Invoke table handler if present */
+
+ if (acpi_gbl_table_handler) {
+ (void)acpi_gbl_table_handler(event, table,
+ acpi_gbl_table_handler_context);
+ }
+}