From owner-freebsd-hardware@freebsd.org Wed Oct 18 11:42:46 2017 Return-Path: Delivered-To: freebsd-hardware@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id D21AAE359C1; Wed, 18 Oct 2017 11:42:46 +0000 (UTC) (envelope-from tech-lists@zyxst.net) Received: from out4-smtp.messagingengine.com (out4-smtp.messagingengine.com [66.111.4.28]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id A06297565A; Wed, 18 Oct 2017 11:42:46 +0000 (UTC) (envelope-from tech-lists@zyxst.net) Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailout.nyi.internal (Postfix) with ESMTP id 988612103B; Wed, 18 Oct 2017 07:42:44 -0400 (EDT) Received: from frontend1 ([10.202.2.160]) by compute4.internal (MEProxy); Wed, 18 Oct 2017 07:42:44 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=zyxst.net; h= content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-me-sender :x-me-sender:x-sasl-enc; s=fm1; bh=sNEw9aFfdtJms6gpR5FM/fSAsfQ3K aaCfuHQeTPPGqY=; b=omQepHV8I+2OdJ5cJ5TOEMsJDXSKVDQaz+AXb8uUOR8dw HRkqkBeAlx+T7dll3otYSwjQxywaT9w+IShIJIYOtLqYp5wQoDYyOlCHA9/F0Cog oY99P/rUI0MjYQxdl4cir/HRgW6WdA5ZcpuBOaw8MxS98uKZUxFk9ov8BiQ6sbN0 gaVl2HthimrkNsjtBpLi+py6QPj/TusHPEeKsc9NjiN5briMDwr+HHwSbG+eV5/C SU/UGj7wvQ+bta+ufj4zObRSAX2GdGO84GtdfkF/StET2PhgwYKcqRbRX3hI+qq1 y8X3ivyxiIyFmAXkzxK0FnaMIsCe59DfLg3eClSZQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=content-transfer-encoding:content-type :date:from:in-reply-to:message-id:mime-version:references :subject:to:x-me-sender:x-me-sender:x-sasl-enc; s=fm1; bh=sNEw9a FfdtJms6gpR5FM/fSAsfQ3KaaCfuHQeTPPGqY=; b=OFpdfxrbRoi9h37lFGtMgy qY4j0McjLGSS+kdFActFZAG/Leev8P16omzR1NQbMIkSjxic2YbjDosYIe8U57CA yZEptLtmjqNyR7/TivaeVKw+Gk3vsUdveKyx8cfx8h9kyZJCVn3/LV0j9imTn7zQ cXbg4sfWhbe3y6gliIvW28hlQ4dBeRGeSc0KBQIsbonuSvGddaJm2uGFShkngwz1 HgdHXBVaAYwvBJCmJnIqCaURWkJd9aIeUwvCw7eG+HYfILdN6OR7aNpCVXgIS8ql 2DhjhlosYIARD3rpmPzs05c7HyDEYDgkpTEo57qrvftyhZK2xtvVOR5VzFkc1/Gw == X-ME-Sender: Received: from desktop.parsley.growveg.org (parsley.growveg.org [82.70.91.97]) by mail.messagingengine.com (Postfix) with ESMTPA id 1CEC97F3AB; Wed, 18 Oct 2017 07:42:44 -0400 (EDT) Date: Wed, 18 Oct 2017 12:42:42 +0100 From: tech-lists To: freebsd-hardware@freebsd.org, freebsd-mobile@freebsd.org Subject: Re: problems getting AMD C-70 APU working with powerd/cpufreq Message-ID: <20171018114241.GA991@desktop.parsley.growveg.org> Mail-Followup-To: freebsd-hardware@freebsd.org, freebsd-mobile@freebsd.org References: <20171013123721.GA27736@acer.zyxst.net> <20171014215317.K34192@sola.nimnet.asn.au> <20171014212602.GB92751@acer.zyxst.net> <20171016013155.I34192@sola.nimnet.asn.au> <20171016121735.GA73795@acer.zyxst.net> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.9.1 (2017-09-22) X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 18 Oct 2017 11:42:46 -0000 On Tue, Oct 17, 2017 at 06:23:06PM -0400, Anthony Jenkins wrote: >cpufreq(4) does not support AMD processor family 0x14 (20), which I >believe your dmesg showed your processor to be. aha! >I had added support for controlling the frequency on some later AMD >families last year, but the AMD documentation for the 0x14 family is >pretty complicated for my tiny brain.  The other families control >processor frequency with a single register, but AFACT you use P-states >on family 0x14.  You can have up to 8 P-states, each of which specifies >a power/frequency configuration.  If someone could point me to a >reference for controlling the frequency for this family, I could submit >something for review...no idea what Linux does for this family. Would it help if I were to get hardware output from booting temporarily to linux mint? many thanks, -- J.