Introduce a new interface for inactive table management.
needed by the next patch, which creates sysfs I/F for inactive tables.
Signed-off-by: Zhang Rui <rui.zhang@xxxxxxxxx>
---
drivers/acpi/tables/tbxface.c | 47 ++++++++++++++++++++++++++++++++++++++++++
include/acpi/acpixf.h | 4 +++
2 files changed, 51 insertions(+)
Index: linux-acpi-2.6/drivers/acpi/tables/tbxface.c
===================================================================
--- linux-acpi-2.6.orig/drivers/acpi/tables/tbxface.c
+++ linux-acpi-2.6/drivers/acpi/tables/tbxface.c
@@ -608,6 +608,53 @@ ACPI_EXPORT_SYMBOL(acpi_get_table_by_ind
/*******************************************************************************
*
+ * FUNCTION: acpi_get_inactive_table_by_index
+ *
+ * PARAMETERS: table_index - Table index
+ * Table - Where the pointer to the table is returned
+ *
+ * RETURN: Status and pointer to the table
+ *
+ * DESCRIPTION: Obtain a table by an index into the global inactive table list.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_get_inactive_table_by_index(u32 table_index,
+ struct acpi_table_header **table)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_get_inactive_table_by_index);
+
+ /* Parameter validation */
+
+ if (!table)
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+
+ /* Validate index */
+ if (table_index >= acpi_gbl_inactive_root_table_list.count)
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+
+ if (!acpi_gbl_inactive_root_table_list.tables[table_index].flags)
+ return_ACPI_STATUS(AE_TABLE_NOT_SUPPORTED);
+
+ if (!acpi_gbl_inactive_root_table_list.tables[table_index].pointer) {
+
+ /* Table is not mapped, map it */
+
+ status =
+ acpi_tb_verify_table(&acpi_gbl_inactive_root_table_list.
+ tables[table_index]);
+ if (ACPI_FAILURE(status))
+ return_ACPI_STATUS(status);
+ }
+
+ *table = acpi_gbl_inactive_root_table_list.tables[table_index].pointer;
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
* FUNCTION: acpi_tb_load_namespace
*
* PARAMETERS: None
Index: linux-acpi-2.6/include/acpi/acpixf.h
===================================================================
--- linux-acpi-2.6.orig/include/acpi/acpixf.h
+++ linux-acpi-2.6/include/acpi/acpixf.h
@@ -122,6 +122,10 @@ acpi_get_table_by_index(u32 table_index,
struct acpi_table_header **out_table);
acpi_status
+acpi_get_inactive_table_by_index(u32 table_index,
+ struct acpi_table_header **out_table);
+
+acpi_status
acpi_install_table_handler(acpi_tbl_handler handler, void *context);
acpi_status acpi_remove_table_handler(acpi_tbl_handler handler);
--
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