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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acpi	ACPI: skip checking BM_STS if the BIOS doesn't ask for it	2010-07-22 16:54:27 -04:00
asm-generic	Merge branch 'for-35' of git://repo.or.cz/linux-kbuild	2010-06-01 08:55:52 -07:00
crypto
drm	drm/ttm: Allocate the page pool manager in the heap.	2010-07-07 12:14:11 +10:00
keys
linux	Merge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6	2010-07-20 18:29:25 -07:00
math-emu
media	V4L/DVB: tuner: Add a definition for the Philips FQ1236 MK5 NTSC tuner	2010-07-08 16:49:53 -03:00
mtd
net	net: fix problem in reading sock TX queue	2010-07-14 20:50:29 -07:00
pcmcia
rdma
rxrpc
scsi	SCSI: implement sd_unlock_native_capacity()	2010-06-02 13:50:04 -04:00
sound
trace	Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-06-10 09:30:09 -07:00
video
xen
Kbuild