From: Todd P. <tp...@mv...> - 2005-08-09 18:56:56
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A new effort to interest the Linux power management communities in a portion of the capabilities offered by Dynamic Power Management (DPM) has begun. Patches to add the concept of "power parameters" (integer valued things that the machine-dependent backend knows how to interpret, clock values, dividers, voltages, etc.) and "operating points" (collections of power parameters with mutually agreeable values) are proposed. The working title of the patches is the "PowerOP" subsystem. PowerOP could be a new layer beneath cpufreq (which manages a "cpu frequency" abstraction that maps onto a subset of the power parameters), but the topic of integrating directly into cpufreq will also be discussed. If nothing else, this would allow for the lowest-level DPM interfaces, and more importantly the machine-dependent code for setting the various power parameters, to gain acceptance in the community and be shared among DPM and cpufreq. If you have any interest in how this shapes up, either to better support hardware that you produce or to better manage the power/performance levels of platforms from your software, then please do join in the discussion on LKML, cpufreq, and linux-pm lists. The threads have "PowerOP" in the title. Thanks, -- Todd |