https://github.com/torvalds/linux
Revision d96f94c604453f87fe24154b87e1e9a3a72511f8 authored by Pallipadi, Venkatesh on 02 February 2009, 19:57:18 UTC, committed by Len Brown on 07 February 2009, 05:41:14 UTC
Bit 11 in intel PDC definitions is meant for OS capability to handle
hardware coordination of P-states. In Linux we have always supported
hwardware coordination of P-states. Just let the BIOSes know that we
support it, by setting this bit.

Some BIOSes use this bit to choose between hardware or software coordination
and without this change below, BIOSes switch to software coordination, which
is not very optimal in terms of power consumption and extra wakeups from idle.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
1 parent db1461a
History
Tip revision: d96f94c604453f87fe24154b87e1e9a3a72511f8 authored by Pallipadi, Venkatesh on 02 February 2009, 19:57:18 UTC
ACPI: Enable bit 11 in _PDC to advertise hw coord
Tip revision: d96f94c
File Mode Size
.gitignore -rw-r--r-- 102 bytes
Kconfig -rw-r--r-- 1.6 KB
Makefile -rw-r--r-- 1.8 KB
gen_init_cpio.c -rw-r--r-- 12.2 KB
initramfs_data.S -rw-r--r-- 1.0 KB

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