Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751841Ab0HUKDM (ORCPT ); Sat, 21 Aug 2010 06:03:12 -0400 Received: from zone0.gcu-squad.org ([212.85.147.21]:39018 "EHLO services.gcu-squad.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751751Ab0HUKDJ (ORCPT ); Sat, 21 Aug 2010 06:03:09 -0400 Date: Sat, 21 Aug 2010 12:02:50 +0200 From: Jean Delvare To: Fenghua Yu Cc: Guenter Roeck , Ingo Molnar , Thomas Gleixner , "H. Peter Anvin" , "Brown, Len" , Chen Gong , "Wan, Huaxu" , lkml , "lm-sensors@lm-sensors.org" Subject: Re: [PATCH 5/5] Package Level Thermal Control and Power Limit Notification: pkgtemp doc Message-ID: <20100821120250.1a992b7d@hyperion.delvare> In-Reply-To: <20100819205120.GA22602@linux-os.sc.intel.com> References: <94E56C79ECC49A4B87113985F1FEBA8D03F8AE2A4B@bgsmsx502.gar.corp.intel.com> <4C485DF1.5050407@linux.intel.com> <20100722162222.GA22450@linux-os.sc.intel.com> <20100722172726.GA4914@ericsson.com> <20100722175225.GB22450@linux-os.sc.intel.com> <20100722185814.GA5235@ericsson.com> <20100722212111.GC22450@linux-os.sc.intel.com> <20100819174632.239aed93@hyperion.delvare> <20100819162719.GB4160@ericsson.com> <20100819205120.GA22602@linux-os.sc.intel.com> X-Mailer: Claws Mail 3.5.0 (GTK+ 2.14.4; i586-suse-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1252 Lines: 27 One more thing... On Thu, 19 Aug 2010 13:51:20 -0700, Fenghua Yu wrote: > The pkgtemp reports thermal status for a set of sensors in a package. Please > note the sensors in a package are not limited to processor sensors which are > handled by coretemp. The sensors in a package also include gfx sensors, cache > sensors, memory controllor sensors which are not handled by any hwmon drivers. By "package" you mean CPU package, right? So by "gfx sensors" and "memory controllor sensors", you refer to features possibly embedded into the CPU package, not sensors outside the CPU, right? > OS gets maximum package thermal status only from MSR PACKAGE_THERM_STATUS. > There is no detailed thermal info for each sensor in a package. User-space > can't compute a maximum by itself. So a piece of kernel driver code, whether > a seperate driver or a integrated driver, is necessary if user-space wants to > know thermal status of a package. OK, now I understand, thanks for the clarification. -- Jean Delvare -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/