On 01/09/06 05:12 +0100, Matthew Garrett wrote:
> On Thu, Aug 31, 2006 at 11:53:04PM -0400, Len Brown wrote:
>
> > The Geode doesn't suport any C-states -- so ACPI wouldn't help them there anyway.
>
> Are you sure of that? The docs I have here suggest C1 and C2, but it's
> possible that that's just the companion chip and they aren't implemented
> in the CPU.
C1 is essentially suspend on hlt. We have something called Automatic Hardware
Clock Gating that kicks in when the blocks go unused, so that saves a bit
more power (especially in the south bridge) then we would with just a simple
hlt. In any event, this already happens without the assistance of ACPI.
The 5536 has support for a C2 state as well, but I don't know if that
has any effect on the GX or not.
Jordan
--
Jordan Crouse
Senior Linux Engineer
Advanced Micro Devices, Inc.
<www.amd.com/embeddedprocessors>
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
