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| author | Bob Moore <robert.moore@intel.com> | 2011-11-16 10:57:28 +0800 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2012-01-17 03:36:28 -0500 |
| commit | 22e5b40ab21fcac21db0ff25fbb844ffecc73a4a (patch) | |
| tree | 6fe339a8c410d2f8f2a0f844c976046d3be47e17 /drivers/acpi/acpica/acglobal.h | |
| parent | 2355e10f07b2c550c671f98b68aedf323c299aeb (diff) | |
| download | linux-22e5b40ab21fcac21db0ff25fbb844ffecc73a4a.tar.gz linux-22e5b40ab21fcac21db0ff25fbb844ffecc73a4a.tar.bz2 linux-22e5b40ab21fcac21db0ff25fbb844ffecc73a4a.zip | |
ACPI 5.0: Implement hardware-reduced option
If HW-reduced flag is set in the FADT, do not attempt to access
or initialize any ACPI hardware, including SCI and global lock.
No FACS will be present.
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/acpica/acglobal.h')
| -rw-r--r-- | drivers/acpi/acpica/acglobal.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h index 76dc02f15574..25912a93dea7 100644 --- a/drivers/acpi/acpica/acglobal.h +++ b/drivers/acpi/acpica/acglobal.h @@ -140,8 +140,19 @@ u32 acpi_gbl_trace_flags; acpi_name acpi_gbl_trace_method_name; u8 acpi_gbl_system_awake_and_running; +/* + * ACPI 5.0 introduces the concept of a "reduced hardware platform", meaning + * that the ACPI hardware is no longer required. A flag in the FADT indicates + * a reduced HW machine, and that flag is duplicated here for convenience. + */ +u8 acpi_gbl_reduced_hardware; + #endif +/* Do not disassemble buffers to resource descriptors */ + +ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_no_resource_disassembly, FALSE); + /***************************************************************************** * * Debug support @@ -207,7 +218,7 @@ ACPI_EXTERN struct acpi_rw_lock acpi_gbl_namespace_rw_lock; /***************************************************************************** * - * Mutual exlusion within ACPICA subsystem + * Mutual exclusion within ACPICA subsystem * ****************************************************************************/ |