From patchwork Tue Sep 18 21:51:21 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: 10604933 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6971813AD for ; Tue, 18 Sep 2018 21:57:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 56B312C04A for ; Tue, 18 Sep 2018 21:57:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 49C9C2C053; Tue, 18 Sep 2018 21:57:29 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.3 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE,URIBL_SBL autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 852E22C050 for ; Tue, 18 Sep 2018 21:57:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=yjcfI+ggtB21N0ifsT1tFOGxd1/+MRilCEdrGvmyDFM=; b=eO3eK9Ejezd3K5/WJtJAE0tFPV iyhgJt3AlUXd2L7WR7vCQLiJI1yjy0tYycQuPZw6sFL+U+UEEII0KmXgLqC8ZVjlrQiWPpGvI2ELj iXCA8yEv2dEkPt3jyZrsLgJZRjDpsAMRO3Lk1RHaXZyFce6FPZDJ0R4fVKWSUH219ofcrRHX83Xn4 oz0yzX8N4/0YpV60B3q2vMb4Tb/M92W7zNpQHuLqk/yALXBQBLc2vWoJz9Uc0oJ6Ay4MRwMogq+XU AiJFCATftTknaRtMXQ9YlAONOGCgp2RnlP8/8zQyBayoV4ER24vN6H6uYDXLGyZYYAVtvdcDS+nUa nBBA3RuA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1g2Nzb-00009W-Iw; Tue, 18 Sep 2018 21:57:11 +0000 Received: from mga17.intel.com ([192.55.52.151]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1g2NvF-0005VD-K1 for linux-arm-kernel@lists.infradead.org; Tue, 18 Sep 2018 21:53:27 +0000 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga107.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 18 Sep 2018 14:52:30 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.53,391,1531810800"; d="scan'208";a="87270428" Received: from maru.jf.intel.com ([10.54.51.77]) by fmsmga002.fm.intel.com with ESMTP; 18 Sep 2018 14:52:00 -0700 From: Jae Hyun Yoo To: Lee Jones , Rob Herring , Jean Delvare , Guenter Roeck , Mark Rutland , 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 v8 09/12] Documentation: hwmon: Add documents for PECI hwmon client drivers Date: Tue, 18 Sep 2018 14:51:21 -0700 Message-Id: <20180918215124.14003-10-jae.hyun.yoo@linux.intel.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20180918215124.14003-1-jae.hyun.yoo@linux.intel.com> References: <20180918215124.14003-1-jae.hyun.yoo@linux.intel.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180918_145241_698051_C4EBB0A6 X-CRM114-Status: GOOD ( 17.01 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-hwmon@vger.kernel.org, devicetree@vger.kernel.org, Jae Hyun Yoo , 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 MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP This commit adds hwmon documents for PECI cputemp and dimmtemp drivers. Cc: Jean Delvare Cc: Jonathan Corbet Cc: Jason M Biils Cc: Randy Dunlap Signed-off-by: Jae Hyun Yoo Reviewed-by: Haiyue Wang Reviewed-by: James Feist Reviewed-by: Vernon Mauery Acked-by: Guenter Roeck --- 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.