From patchwork Mon Jul 23 21:47:48 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jae Hyun Yoo X-Patchwork-Id: 951344 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 41fcJ01mWCz9ryn for ; Tue, 31 Jul 2018 10:09:36 +1000 (AEST) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.intel.com Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 41fcJ00RYpzF14s for ; Tue, 31 Jul 2018 10:09:36 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.intel.com X-Original-To: linux-aspeed@lists.ozlabs.org Delivered-To: linux-aspeed@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=none (mailfrom) smtp.mailfrom=linux.intel.com (client-ip=134.134.136.126; helo=mga18.intel.com; envelope-from=jae.hyun.yoo@linux.intel.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.intel.com Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 41ZFVy6KwNzDr0d; Tue, 24 Jul 2018 07:48:58 +1000 (AEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga106.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 23 Jul 2018 14:48:56 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.51,394,1526367600"; d="scan'208";a="66923156" Received: from maru.jf.intel.com ([10.54.51.80]) by FMSMGA003.fm.intel.com with ESMTP; 23 Jul 2018 14:48:55 -0700 From: Jae Hyun Yoo To: Jean Delvare , Guenter Roeck , Rob Herring , Mark Rutland , Lee Jones , Joel Stanley , Andrew Jeffery , Jonathan Corbet , Greg Kroah-Hartman , Gustavo Pimentel , Kishon Vijay Abraham I , Lorenzo Pieralisi , "Darrick J . Wong" , Eric Sandeen , Arnd Bergmann , Wu Hao , Tomohiro Kusumi , "Bryant G . Ly" , Frederic Barrat , "David S . Miller" , Mauro Carvalho Chehab , Andrew Morton , Randy Dunlap , Philippe Ombredanne , Vinod Koul , Stephen Boyd , David Kershner , Uwe Kleine-Konig , Sagar Dharia , Johan Hovold , Thomas Gleixner , Juergen Gross , Cyrille Pitchen Subject: [PATCH v7 09/12] Documentation: hwmon: Add documents for PECI hwmon client drivers Date: Mon, 23 Jul 2018 14:47:48 -0700 Message-Id: <20180723214751.1733-10-jae.hyun.yoo@linux.intel.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20180723214751.1733-1-jae.hyun.yoo@linux.intel.com> References: <20180723214751.1733-1-jae.hyun.yoo@linux.intel.com> X-Mailman-Approved-At: Tue, 31 Jul 2018 10:09:14 +1000 X-BeenThere: linux-aspeed@lists.ozlabs.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: Linux ASPEED SoC development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-hwmon@vger.kernel.org, devicetree@vger.kernel.org, linux-aspeed@lists.ozlabs.org, linux-doc@vger.kernel.org, openbmc@lists.ozlabs.org, linux-kernel@vger.kernel.org, Jason M Biils , linux-arm-kernel@lists.infradead.org Errors-To: linux-aspeed-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linux-aspeed" This commit adds hwmon documents for PECI cputemp and dimmtemp drivers. Signed-off-by: Jae Hyun Yoo Reviewed-by: Haiyue Wang Reviewed-by: James Feist Reviewed-by: Vernon Mauery Acked-by: Guenter Roeck Cc: Jean Delvare Cc: Jonathan Corbet Cc: Jason M Biils Cc: Randy Dunlap --- Documentation/hwmon/peci-cputemp | 78 +++++++++++++++++++++++++++++++ Documentation/hwmon/peci-dimmtemp | 50 ++++++++++++++++++++ 2 files changed, 128 insertions(+) create mode 100644 Documentation/hwmon/peci-cputemp create mode 100644 Documentation/hwmon/peci-dimmtemp diff --git a/Documentation/hwmon/peci-cputemp b/Documentation/hwmon/peci-cputemp new file mode 100644 index 000000000000..821a9258f2e6 --- /dev/null +++ b/Documentation/hwmon/peci-cputemp @@ -0,0 +1,78 @@ +Kernel driver peci-cputemp +========================== + +Supported chips: + One of Intel server CPUs listed below which is connected to a PECI bus. + * Intel Xeon E5/E7 v3 server processors + Intel Xeon E5-14xx v3 family + Intel Xeon E5-24xx v3 family + Intel Xeon E5-16xx v3 family + Intel Xeon E5-26xx v3 family + Intel Xeon E5-46xx v3 family + Intel Xeon E7-48xx v3 family + Intel Xeon E7-88xx v3 family + * Intel Xeon E5/E7 v4 server processors + Intel Xeon E5-16xx v4 family + Intel Xeon E5-26xx v4 family + Intel Xeon E5-46xx v4 family + Intel Xeon E7-48xx v4 family + Intel Xeon E7-88xx v4 family + * Intel Xeon Scalable server processors + Intel Xeon Bronze family + Intel Xeon Silver family + Intel Xeon Gold family + Intel Xeon Platinum family + Addresses scanned: PECI client address 0x30 - 0x37 + Datasheet: Available from http://www.intel.com/design/literature.htm + +Author: + Jae Hyun Yoo + +Description +----------- + +This driver implements a generic PECI hwmon feature which provides Digital +Thermal Sensor (DTS) thermal readings of the CPU package and CPU cores that are +accessible using the PECI Client Command Suite via the processor PECI client. + +All temperature values are given in millidegree Celsius and will be measurable +only when the target CPU is powered on. + +sysfs attributes +---------------- + +temp1_label "Die" +temp1_input Provides current die temperature of the CPU package. +temp1_max Provides thermal control temperature of the CPU package + which is also known as Tcontrol. +temp1_crit Provides shutdown temperature of the CPU package which + is also known as the maximum processor junction + temperature, Tjmax or Tprochot. +temp1_crit_hyst Provides the hysteresis value from Tcontrol to Tjmax of + the CPU package. + +temp2_label "Tcontrol" +temp2_input Provides current Tcontrol temperature of the CPU + package which is also known as Fan Temperature target. + Indicates the relative value from thermal monitor trip + temperature at which fans should be engaged. +temp2_crit Provides Tcontrol critical value of the CPU package + which is same to Tjmax. + +temp3_label "Tthrottle" +temp3_input Provides current Tthrottle temperature of the CPU + package. Used for throttling temperature. If this value + is allowed and lower than Tjmax - the throttle will + occur and reported at lower than Tjmax. + +temp4_label "Tjmax" +temp4_input Provides the maximum junction temperature, Tjmax of the + CPU package. + +temp[5-*]_label Provides string "Core X", where X is resolved core + number. +temp[5-*]_input Provides current temperature of each core. +temp[5-*]_max Provides thermal control temperature of the core. +temp[5-*]_crit Provides shutdown temperature of the core. +temp[5-*]_crit_hyst Provides the hysteresis value from Tcontrol to Tjmax of + the core. diff --git a/Documentation/hwmon/peci-dimmtemp b/Documentation/hwmon/peci-dimmtemp new file mode 100644 index 000000000000..c54f2526188c --- /dev/null +++ b/Documentation/hwmon/peci-dimmtemp @@ -0,0 +1,50 @@ +Kernel driver peci-dimmtemp +=========================== + +Supported chips: + One of Intel server CPUs listed below which is connected to a PECI bus. + * Intel Xeon E5/E7 v3 server processors + Intel Xeon E5-14xx v3 family + Intel Xeon E5-24xx v3 family + Intel Xeon E5-16xx v3 family + Intel Xeon E5-26xx v3 family + Intel Xeon E5-46xx v3 family + Intel Xeon E7-48xx v3 family + Intel Xeon E7-88xx v3 family + * Intel Xeon E5/E7 v4 server processors + Intel Xeon E5-16xx v4 family + Intel Xeon E5-26xx v4 family + Intel Xeon E5-46xx v4 family + Intel Xeon E7-48xx v4 family + Intel Xeon E7-88xx v4 family + * Intel Xeon Scalable server processors + Intel Xeon Bronze family + Intel Xeon Silver family + Intel Xeon Gold family + Intel Xeon Platinum family + Addresses scanned: PECI client address 0x30 - 0x37 + Datasheet: Available from http://www.intel.com/design/literature.htm + +Author: + Jae Hyun Yoo + +Description +----------- + +This driver implements a generic PECI hwmon feature which provides Digital +Thermal Sensor (DTS) thermal readings of DIMM components that are accessible +using the PECI Client Command Suite via the processor PECI client. + +All temperature values are given in millidegree Celsius and will be measurable +only when the target CPU is powered on. + +sysfs attributes +---------------- + +temp[N]_label Provides string "DIMM CI", where C is DIMM channel and + I is DIMM index of the populated DIMM. +temp[N]_input Provides current temperature of the populated DIMM. + +Note: + DIMM temperature attributes will appear when the client CPU's BIOS + completes memory training and testing.