From 009c4cbe99bea2da53f29ad685975a36f38c001c Mon Sep 17 00:00:00 2001 From: Bob Moore Date: Wed, 12 Nov 2008 15:34:52 +0800 Subject: ACPICA: Add global pointer for FACS table to simplify FACS access Use a global pointer instead of using AcpiGetTableByIndex for each FACS access. This simplifies the code for the Global Lock and the Firmware Waking Vector(s). Signed-off-by: Bob Moore Signed-off-by: Lin Ming Signed-off-by: Len Brown --- drivers/acpi/tables/tbutils.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'drivers/acpi/tables') diff --git a/drivers/acpi/tables/tbutils.c b/drivers/acpi/tables/tbutils.c index 0cc92ef5236f..50e677711e5b 100644 --- a/drivers/acpi/tables/tbutils.c +++ b/drivers/acpi/tables/tbutils.c @@ -111,6 +111,30 @@ acpi_tb_check_xsdt(acpi_physical_address address) return AE_OK; } +/******************************************************************************* + * + * FUNCTION: acpi_tb_initialize_facs + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Create a permanent mapping for the FADT and save it in a global + * for accessing the Global Lock and Firmware Waking Vector + * + ******************************************************************************/ + +acpi_status acpi_tb_initialize_facs(void) +{ + acpi_status status; + + status = acpi_get_table_by_index(ACPI_TABLE_INDEX_FACS, + ACPI_CAST_INDIRECT_PTR(struct + acpi_table_header, + &acpi_gbl_FACS)); + return status; +} + /******************************************************************************* * * FUNCTION: acpi_tb_tables_loaded -- cgit v1.2.3