diff options
| author | Bob Moore <robert.moore@intel.com> | 2008-11-12 10:34:52 +0300 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2008-12-30 06:38:37 +0300 |
| commit | 009c4cbe99bea2da53f29ad685975a36f38c001c (patch) | |
| tree | 170887ee9986ae84792200abd3f3022df01630ce /drivers/acpi/utilities | |
| parent | c87609f31a8641009641fc1d19dac75e6de06fd4 (diff) | |
| download | linux-009c4cbe99bea2da53f29ad685975a36f38c001c.tar.xz | |
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/utilities')
| -rw-r--r-- | drivers/acpi/utilities/utglobal.c | 1 | ||||
| -rw-r--r-- | drivers/acpi/utilities/utxface.c | 11 |
2 files changed, 12 insertions, 0 deletions
diff --git a/drivers/acpi/utilities/utglobal.c b/drivers/acpi/utilities/utglobal.c index 3dc53114395b..211d621f42a9 100644 --- a/drivers/acpi/utilities/utglobal.c +++ b/drivers/acpi/utilities/utglobal.c @@ -771,6 +771,7 @@ acpi_status acpi_ut_init_globals(void) acpi_gbl_global_lock_mutex = NULL; acpi_gbl_global_lock_acquired = FALSE; acpi_gbl_global_lock_handle = 0; + acpi_gbl_global_lock_present = FALSE; /* Miscellaneous variables */ diff --git a/drivers/acpi/utilities/utxface.c b/drivers/acpi/utilities/utxface.c index c198a4d40583..7ca8952eb1b8 100644 --- a/drivers/acpi/utilities/utxface.c +++ b/drivers/acpi/utilities/utxface.c @@ -45,6 +45,7 @@ #include <acpi/acevents.h> #include <acpi/acnamesp.h> #include <acpi/acdebug.h> +#include <acpi/actables.h> #define _COMPONENT ACPI_UTILITIES ACPI_MODULE_NAME("utxface") @@ -148,6 +149,16 @@ acpi_status acpi_enable_subsystem(u32 flags) } /* + * Obtain a permanent mapping for the FACS. This is required for the + * Global Lock and the Firmware Waking Vector + */ + status = acpi_tb_initialize_facs(); + if (ACPI_FAILURE(status)) { + ACPI_WARNING((AE_INFO, "Could not map the FACS table")); + return_ACPI_STATUS(status); + } + + /* * Install the default op_region handlers. These are installed unless * other handlers have already been installed via the * install_address_space_handler interface. |