From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755076AbbCLWuZ (ORCPT ); Thu, 12 Mar 2015 18:50:25 -0400 Received: from mail-qg0-f49.google.com ([209.85.192.49]:43799 "EHLO mail-qg0-f49.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751509AbbCLWuX (ORCPT ); Thu, 12 Mar 2015 18:50:23 -0400 Message-ID: <5502182C.90304@gmail.com> Date: Thu, 12 Mar 2015 17:50:20 -0500 From: kazutomo User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 MIME-Version: 1.0 To: Jacob Pan CC: Linux PM , LKML , Rafael Wysocki , Srinivas Pandruvada , Len Brown Subject: Re: [PATCH] powercap/rapl: handle domain energy unit References: <1426078509-3767-1-git-send-email-jacob.jun.pan@linux.intel.com> <5500B2E0.9000107@gmail.com> <20150312142413.7bd42863@icelake> <55020C4F.3010406@gmail.com> <20150312150536.630c0644@icelake> In-Reply-To: <20150312150536.630c0644@icelake> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 03/12/2015 05:05 PM, Jacob Pan wrote: > On Thu, 12 Mar 2015 16:59:43 -0500 > kazutomo wrote: > >>> according to the document, future DRAM energy unit will always be >>> hardcoded to 15.3uJ, no enumeration since there is no domain >>> specific MSR for energy unit. >> Which document are you referring to? > Intel DocID:330784-001 Sept 2014 > Intel Xeon Processor E5-1600 and E5-2600 V2 of 2. I think V2 is Ivy Bridge. Is this typo? By googling, I found a datasheet titled: "Intel Xeon Processor E5-1600 and E5-2600 v3 Product Families, Volume 2 of 2. Datasheet, September 2014, Reference Number: 330784-001 " It clearly says "ENERGY_UNIT for DRAM domain is 15.3uJ." - kaz