Date: Wed, 21 Sep 2016 07:49:52 -0300 (ADT) From: Jared McNeill <jmcneill@invisible.ca> To: Daniel Braniss <danny@cs.huji.ac.il> Cc: arm@freebsd.org Subject: Re: ALL WINNER high temp. stop Message-ID: <alpine.DEB.2.11.1609210745050.641@dis.invisible.ca> In-Reply-To: <01D85517-15ED-46FF-8C11-5A774EC1262F@cs.huji.ac.il> References: <B11041B2-0EDD-4E20-8684-CB471C17D81B@cs.huji.ac.il> <20160917171911.a2ec80da747ba373ba3d1b4a@bidouilliste.com> <5ADFE16E-FD60-45B1-8CF1-6FFC10BABBDE@cs.huji.ac.il> <20160917195544.a2a8bbdb113029700fa7642d@bidouilliste.com> <588E44BB-40BF-40B8-9C5A-BA025AB87E00@cs.huji.ac.il> <alpine.DEB.2.11.1609180930230.641@dis.invisible.ca> <4F7891B0-FBD7-451C-BA42-50F872804C95@cs.huji.ac.il> <08E5651B-A28E-4BE8-803B-650CD2434979@cs.huji.ac.il> <01D85517-15ED-46FF-8C11-5A774EC1262F@cs.huji.ac.il>
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CPU frequency scaling is supported now. Have you added operating points to the dts? Without a heatsink or fan, you need to set a reasonable set of operating points. 64C does seem quite low, the thermal driver uses the power-on default temperature for the shutdown temperature though (which should be > 100C). Are you sure you are using the correct compat string for the thermal driver in your dts? Different SoCs use a different formula for reading the temperature. Cheers, Jared On Wed, 21 Sep 2016, Daniel Braniss wrote: > hi all, > now that there is thermal control, trying to compile e.g. from ports > portmaster, heats up the cpu, which somewhere around 64C > decides to halt. > Now, I remember some weeks ago, with a kernel version > without the thermal stuff compiling python and all went ok, > so > Q: what is the thermal high water mark? > Q: are the latest changes overheating the cpu, or is the thermal driver over > cautious? > > danny > > >
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