On Thu, May 24, 2007 at 05:01:04PM -0400, Dave Jones wrote: > On Thu, May 24, 2007 at 01:55:13PM -0700, Andrew Morton wrote: > > On Wed, 23 May 2007 15:46:37 -0700 > > Venki Pallipadi <[EMAIL PROTECTED]> wrote: > > > > > Display Intel Dynamic Acceleration feature in /proc/cpuinfo. This feature > > > will be enabled automatically by current acpi-cpufreq driver and cpufreq. > > > > So you're saying that the cpufreq code in Linus's tree aleady supports IDA? > > If so, this is a 2.6.22 patch, isn't it? > > From my limited understanding[*], ida is the "We're single threaded, > disable the 2nd core, and clock the first core faster" magic. > It doesn't need code-changes, as its all done in hardware afaik.
IDA state will appear as a new highest freq P-state (P0) and when software requests that frequency, hardware can provide a higher frequency than that oppurtunistically and transparently. The current cpufreq code will detect this new state and enter that state when CPU is busy. > > identifying & exporting the flags on earlier kernels should be harmless, > but not really 'mustfix'. > Agree with Dave that it is not a mustfix. As the patch is pretty harmless would be nice to have in 2.6.22. Thanks, Venki - 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/
