To the lists too.. On 02/27/2012 04:49 PM, Kevin Hilman wrote: > mark gross <markgross@xxxxxxxxxxx> writes: > > >> Current QoS settings could be thought of as performance constraints > >> too. It's just that they determine minimum performance. Adding > >> constraints for maxium performance is not a big stretch in my mind. > > > > Its not a big stretch to me either. I just think its a bit of a hack > > and there is a bigger more interesting issue getting overlooked. > > > > Lastly why not simply make cpufreq thermal aware and talk directly to > > it if you even need too? > > In fact, making a thermal framework "cooling device" that talks directly > to CPUfreq is already what's being done by the Linaro PMWG folks. > > The problem is that CPUfreq only controls the CPU frequency. > > There are other devices that could be scaled back to reduce heat as well > (DSP, and especially GPU), so having a more generic per-device > constraint interface that can cap the frequency for *any* scalable > device is a better framework IMO. > > It just so happens that pm_qos is already a good per-device constraint > framework and can easily modified to cap performance as well as request > a minimum performance. > > Kevin > _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/linux-pm
