From owner-freebsd-current@FreeBSD.ORG Tue Sep 23 06:58:46 2008 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 7736C1065673 for ; Tue, 23 Sep 2008 06:58:46 +0000 (UTC) (envelope-from annona2@gmail.com) Received: from wf-out-1314.google.com (wf-out-1314.google.com [209.85.200.175]) by mx1.freebsd.org (Postfix) with ESMTP id 3E2DE8FC1E for ; Tue, 23 Sep 2008 06:58:46 +0000 (UTC) (envelope-from annona2@gmail.com) Received: by wf-out-1314.google.com with SMTP id 24so2000476wfg.7 for ; Mon, 22 Sep 2008 23:58:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:received:message-id:date:from :to:cc:subject:in-reply-to:references:user-agent:mime-version :content-type:content-transfer-encoding; bh=Q34QtP7fMptl6tLXnNkm8AI/Lv7XKDswEhWjbd64WA0=; b=adX6SNeHsAOVhVSsDWJAgVYbA13Zwg9r3o7IZgBaHA8f2frRxwBUejKU7MVGbeW9wZ KnicIfTF2X3pt0dyMbkLcpU3sC7bcIdYPock99x/bHfYaQIPdvFNiSGjEn11bQCibEOj MPfVJ8ZCbqHiOsazkAqVgQEweHX6XAOAyL/ec= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:cc:subject:in-reply-to:references :user-agent:mime-version:content-type:content-transfer-encoding; b=xEosdRGm6P7fIpys8B36qEyU0IevYR/naKvsSPmJTVIVdzt9eQ16mlZBKs7sBw/Fk/ hdKQScnq8Geekw+j0djNmjxls012HPnjaLz+BYjjx31ObLfAQ82B1Xc4etbzJKijqGwr CZcPMzDZZ9CpoXi8DKf/MKvO1PuXE+J/3qvCQ= Received: by 10.142.132.2 with SMTP id f2mr1831015wfd.287.1222153125753; Mon, 22 Sep 2008 23:58:45 -0700 (PDT) Received: from softbank219001162114.bbtec.net ( [219.1.162.114]) by mx.google.com with ESMTPS id 22sm9496693wfi.14.2008.09.22.23.58.40 (version=TLSv1/SSLv3 cipher=RC4-MD5); Mon, 22 Sep 2008 23:58:45 -0700 (PDT) Received: from softbank219001162114.bbtec.net (localhost [127.0.0.1]) by softbank219001162114.bbtec.net (8.14.3/8.14.3) with ESMTP id m8N6wcxM002487; Tue, 23 Sep 2008 15:58:39 +0900 (JST) (envelope-from annona2@gmail.com) Message-Id: <200809230658.m8N6wcxM002487@softbank219001162114.bbtec.net> Date: Tue, 23 Sep 2008 15:58:38 +0900 From: "G .Otsuji" To: "fluffles.net" In-Reply-To: <48D85FC0.5050807@fluffles.net> References: <200809070036.m870a3NC001532@softbank219001162114.bbtec.net> <48D72F0E.7040501@fluffles.net> <200809222333.m8MNXiuS064364@softbank219001162114.bbtec.net> <48D85FC0.5050807@fluffles.net> User-Agent: Wanderlust/2.15.5 (Almost Unreal) SEMI/1.14.6 (Maruoka) FLIM/1.14.8 (=?ISO-8859-4?Q?Shij=F2?=) APEL/10.7 Emacs/22.2 (i386-portbld-freebsd7.1) MULE/5.0 (SAKAKI) MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Cc: "G.Otsuji" , FreeBSD Current Subject: Re: AMD Family 10h cpufreq driver X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Sep 2008 06:58:46 -0000 Hi Veronica, I haven't read yet much so mail again. > I want to mention i'm using amd64, do your intructions account for that? > Because i see a i386 directory, although if i see some stuff about amd64 > in the makefile that suggests it also uses that directory. Just want a > confirmation from you that this is not a problem. Yes! It's not a problem. > From: http://www.xbitlabs.com/articles/cpu/display/amd-phenom_3.html >=20 > Cool=E2=80=99nQuiet technology in Phenom processors got to a completely n= ew > level, too. Now they call it Cool=E2=80=99n=E2=80=99Quiet 2.0. It allows = to > independently adjust the power consumption and frequency of all four > processor cores and memory controller. Yes,too!. but ,FreeBSD has only one oid dev.cpu.0.freq_levels/dev.cpu.0.fre= q. I think it is possible that dev.cpu.1.freq=3D1000 and dev.cpu.2.freq=3D1200= or so. But freebsd is not yet enabled this feature. > Moreover, Phenom also supports C1E state that takes place for the > processor after a few milliseconds of idling. In this case the CPU not > only drops down its clock speed, but also reduces the HyperTransport and > system bus power consumption. >=20 > Another new and pretty interesting feature of the Cool=E2=80=99n=E2=80=99= Quiet 2.0 > technology is the ability of the CPU voltage regulator to receive data > on the current power-saving CPU mode. Theoretically, it allows adjusting > the voltage regulator circuitry parameters interactively depending on > the processor operational conditions. I believe that mainboard > developers will be able to implement corresponding algorithms in their > solutions. Yes.the voltage is dropping as the cpu clock-downs with pstate modules. boot -v will writes this message if goes well. > AMD CPUs with C1E support are currently excluded from high resolution > timers and NOHZ support. The reason is that C1E is a BIOS controlled > C3 power state which switches off TSC and the local APIC timer. The > ACPI C-State control manages the TSC/local APIC timer wreckage, but > this does not include the C1 based ("halt" instruction) C1E mode. The > BIOS/SMM controlled C1E state works on most systems even without > enabling ACPI C-State control. ACPI is not my knowing area, so rewriting is welcome! Cheers, G. Otsuji