From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Langsdorf Subject: support for software direct frequency throttling? Date: Wed, 07 Aug 2013 14:38:55 -0500 Message-ID: <5202A24F.6040506@calxeda.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: Sender: cpufreq-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" To: "cpufreq@vger.kernel.org" Is there an easy way to dynamically limit the maximum or minimum frequencies available to a governor? I'm trying to support frequency throttling in response to a thermal event (or theoretically to allow a BMC to set a minimum frequency regardless of current load). I looked into doing this last year and it required some QoS patches that I don't think ever made it into the kernel. Is there a straightforward way to do this right now? If not, is anyone working on implementing this? If not, any preferences from the maintainers on how I should implement? Thanks, Mark Langsdorf Calxeda, Inc.