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| author | Bob Moore <robert.moore@intel.com> | 2008-11-12 15:34:52 +0800 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2008-12-29 22:38:37 -0500 |
| commit | 009c4cbe99bea2da53f29ad685975a36f38c001c (patch) | |
| tree | 170887ee9986ae84792200abd3f3022df01630ce /drivers/acpi/tables | |
| parent | c87609f31a8641009641fc1d19dac75e6de06fd4 (diff) | |
| download | linux-3.10-009c4cbe99bea2da53f29ad685975a36f38c001c.tar.gz linux-3.10-009c4cbe99bea2da53f29ad685975a36f38c001c.tar.bz2 linux-3.10-009c4cbe99bea2da53f29ad685975a36f38c001c.zip | |
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 <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/tables')
| -rw-r--r-- | drivers/acpi/tables/tbutils.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/acpi/tables/tbutils.c b/drivers/acpi/tables/tbutils.c index 0cc92ef5236..50e677711e5 100644 --- a/drivers/acpi/tables/tbutils.c +++ b/drivers/acpi/tables/tbutils.c @@ -113,6 +113,30 @@ acpi_tb_check_xsdt(acpi_physical_address address) /******************************************************************************* * + * 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 * * PARAMETERS: None |