From owner-cvs-all@FreeBSD.ORG Mon Jan 19 02:09:10 2004 Return-Path: Delivered-To: cvs-all@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 20D5D16A4CE; Mon, 19 Jan 2004 02:09:10 -0800 (PST) Received: from gwoffice.united.net.ua (office-l6-gw.united.net.ua [193.111.8.74]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4AA4543D54; Mon, 19 Jan 2004 02:09:07 -0800 (PST) (envelope-from sobomax@portaone.com) Received: from portaone.com (localhost [127.0.0.1])i0JA90uc036029; Mon, 19 Jan 2004 12:09:02 +0200 (EET) (envelope-from sobomax@portaone.com) Message-ID: <400BACBC.9090506@portaone.com> Date: Mon, 19 Jan 2004 12:09:00 +0200 From: Maxim Sobolev User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax) X-Accept-Language: en-us, en, ru, uk MIME-Version: 1.0 To: Nate Lawson References: <20040118210712.2B8C616A528@hub.freebsd.org> <20040118220400.M89515@root.org> In-Reply-To: <20040118220400.M89515@root.org> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit cc: cvs-src@FreeBSD.ORG cc: src-committers@FreeBSD.ORG cc: cvs-all@FreeBSD.ORG Subject: Re: cvs commit: src/sys/i386/i386 p4tcc.c src/sys/conf files.i386 options.i386 src/sys/i386/conf NOTES X-BeenThere: cvs-all@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: CVS commit messages for the entire tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 19 Jan 2004 10:09:10 -0000 Nate Lawson wrote: > On Sun, 18 Jan 2004, Maxim Sobolev wrote: > >> FreeBSD src repository >> >> Modified files: >> sys/conf options.i386 files.i386 >> sys/i386/conf NOTES >> Added files: >> sys/i386/i386 p4tcc.c >> Log: >> Add new CPU_ENABLE_TCC option, from NOTES: >> >> CPU_ENABLE_TCC enables Thermal Control Circuitry (TCC) found in some >> Pentium(tm) 4 and (possibly) later CPUs. When enabled and detected, >> TCC allows to restrict power consumption by using machdep.cpuperf* >> sysctls. This operates independently of SpeedStep and is useful on >> systems where other mechanisms such as apm(4) or acpi(4) don't work. >> >> Given the fact that many, even modern, notebooks don't work properly >> with Intel ACPI, this is indeed very useful option for notebook owners. >> >> Obtained from: OpenBSD >> MFC after: 2 weeks > > > I can't seem to see where this was posted before committing. Please > coordinate power/thermal management code with me. I have an upcoming > cpufreq driver that will encapsulate all of these machdep CPU control > drivers, including SpeedStep and LongRun. It's not dependent on ACPI > although ACPI can use it for passive cooling. Also, your driver should > use /etc/power_profile to set a sysctl, not proliferate > performance/economy sysctls. Drop me a private email and we can figure > out how to coordinate. Sorry, I did not know that you are working on this. Please feel free to take p4tcc support and integrate it into your framework. -Maxim