kernel-fxtec-pro1x/arch/x86_64
Venkatesh Pallipadi 991528d734 ACPI: Processor native C-states using MWAIT
Intel processors starting with the Core Duo support
support processor native C-state using the MWAIT instruction.
Refer: Intel Architecture Software Developer's Manual
http://www.intel.com/design/Pentium4/manuals/253668.htm

Platform firmware exports the support for Native C-state to OS using
ACPI _PDC and _CST methods.
Refer: Intel Processor Vendor-Specific ACPI: Interface Specification
http://www.intel.com/technology/iapc/acpi/downloads/302223.htm

With Processor Native C-state, we use 'MWAIT' instruction on the processor
to enter different C-states (C1, C2, C3).  We won't use the special IO
ports to enter C-state and no SMM mode etc required to enter C-state.
Overall this will mean better C-state support.

One major advantage of using MWAIT for all C-states is, with this and
"treat interrupt as break event" feature of MWAIT, we can now get accurate
timing for the time spent in C1, C2, ..  states.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-10-14 00:35:39 -04:00
..
boot Remove all inclusions of <linux/config.h> 2006-10-04 03:38:54 -04:00
crypto [CRYPTO] api: Get rid of flags argument to setkey 2006-09-21 11:41:02 +10:00
ia32 [PATCH] ptrace32 trivial __user annotations 2006-10-10 15:37:23 -07:00
kernel ACPI: Processor native C-states using MWAIT 2006-10-14 00:35:39 -04:00
lib Remove all inclusions of <linux/config.h> 2006-10-04 03:38:54 -04:00
mm [PATCH] mm: use symbolic names instead of indices for zone initialisation 2006-10-11 11:14:14 -07:00
oprofile
pci [PATCH] x86: Move direct PCI scanning functions out of line 2006-09-26 10:52:41 +02:00
defconfig [PATCH] x86-64: Update defconfig 2006-10-05 18:47:21 +02:00
Kconfig more misc typo fixes 2006-10-03 22:34:14 +02:00
Kconfig.debug [PATCH] lockdep: irqtrace subsystem, x86_64 support 2006-07-03 15:27:03 -07:00
Makefile [PATCH] i386/x86-64: Work around gcc bug with noreturn functions in unwinder 2006-09-26 10:52:41 +02:00