Len Brown 718be4aaf3 ACPI: skip checking BM_STS if the BIOS doesn't ask for it ... It turns out that there is a bit in the _CST for Intel FFH C3 that tells the OS if we should be checking BM_STS or not. Linux has been unconditionally checking BM_STS. If the chip-set is configured to enable BM_STS, it can retard or completely prevent entry into deep C-states -- as illustrated by turbostat: http://userweb.kernel.org/~lenb/acpi/utils/pmtools/turbostat/ ref: Intel Processor Vendor-Specific ACPI Interface Specification table 4 "_CST FFH GAS Field Encoding" Bit 1: Set to 1 if OSPM should use Bus Master avoidance for this C-state https://bugzilla.kernel.org/show_bug.cgi?id=15886 Signed-off-by: Len Brown <len.brown@intel.com>		2010-07-22 16:54:27 -04:00
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platform
acexcep.h	ACPICA: Fix namestring associated with AE_NO_HANDLER exception	2010-06-12 00:54:36 -04:00
acnames.h
acoutput.h	ACPICA: Enhance configuration for output of AML Debug Object	2010-04-20 10:42:49 -04:00
acpi_bus.h	ACPI: pci_root: save downstream bus range	2010-04-04 00:29:41 -04:00
acpi_drivers.h	ACPI: pci_root: pass acpi_pci_root to arch-specific scan	2010-04-04 00:29:53 -04:00
acpi_numa.h
acpi.h
acpiosxf.h	ACPICA: Update/clarify some parameter names associated with acpi_handle	2010-05-06 03:05:54 -04:00
acpixf.h	ACPICA: Truncate I/O addresses to 16 bits for Windows compatibility	2010-06-12 00:55:50 -04:00
acrestyp.h
actbl1.h
actbl2.h	ACPICA: Add support for MCHI table	2010-04-20 10:42:50 -04:00
actbl.h
actypes.h	Merge branch 'gpe-regression-fixes' into release	2010-06-12 00:51:49 -04:00
apei.h	ACPI, APEI, Error Record Serialization Table (ERST) support	2010-05-19 22:41:31 -04:00
atomicio.h	ACPI, IO memory pre-mapping and atomic accessing	2010-05-19 11:40:03 -04:00
button.h
container.h
hed.h	ACPI Hardware Error Device (PNP0C33) support	2010-05-19 22:40:24 -04:00
pdc_intel.h
processor.h	ACPI: skip checking BM_STS if the BIOS doesn't ask for it	2010-07-22 16:54:27 -04:00
reboot.h
video.h	ACPI: Export EDID blocks to the kernel	2010-04-19 15:56:32 -04:00