From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AIpwx48GScgjRBrDetmyH2BMfL+PKa0oyNkmWSRdUljqeO1zFwYxSIG3mrE1RRwM9xo6YdygsSXT ARC-Seal: i=1; a=rsa-sha256; t=1523385183; cv=none; d=google.com; s=arc-20160816; b=jXAstXsbD/+GhUB19KeRaNr9nEfQbZrQ6fG91xhPGMczVxyHcUDUsvWoxHyAppN6Ho Yi0UF1AFIQL0+I1fFGxcixYKkRrR8PPG5bLP7DSnZhvk9PTg3TOBnISLVpml0iRdIUBR 0G41NI7xLKWPNtWKHsWMJyat+2PNWdy6KftTdO6K4MC0G0CRe3oiKRyEBwoZH6BN4wyO 2uCGO2c9GpizZjqgXJHSfqNMiKH8xOH/bfdahzvg49VWw5oHikUu8UM/ZH5htjgRjRrQ jyzvUx7w93E9jscHC+MQpY2fzzfcYUDSLsdHYla/0SnN+uw7Dc6PKgeuVbcOlPB5UerK kGyg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=references:in-reply-to:message-id:date:subject:cc:to:from :arc-authentication-results; bh=E1txUEkcB48EefOkw+2X736u8fKOOiLwfB+2vZzlI04=; b=MR/InROGbEBfKYOTAh/AzT2Sj9AIg5J3eZUIfKKI2Qe72p2oQXwNxISGkQcYguyZR+ BEmH/bDuF9LYdZuRfYph7E4ojFPupp1288oiRbsBvFRvljtJeuqx7ToP8/VHjPP4/uef ZI9Yvz4H0LARG+hPlYFRskAW6ioHoV+0c8H6JJAz82BGDZtb+35Ns9i67VyJefkfVepl VHMji3dcg8GShiSvx+T0IWaZSASAAORRztm5KorFpwaXR3e9NF+cv2F9dkcaVc4zVeuS uz4f5HmwhmfI5BzPwGQgE46dwx2IBoOjL6OqXBU0tvOka1ZTkYuyJzmPgFJGvvdkYqha qhPw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of jae.hyun.yoo@linux.intel.com designates 192.55.52.115 as permitted sender) smtp.mailfrom=jae.hyun.yoo@linux.intel.com Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of jae.hyun.yoo@linux.intel.com designates 192.55.52.115 as permitted sender) smtp.mailfrom=jae.hyun.yoo@linux.intel.com X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.48,433,1517904000"; d="scan'208";a="219323785" From: Jae Hyun Yoo To: Alan Cox , Andrew Jeffery , Andrew Lunn , Andy Shevchenko , Arnd Bergmann , Benjamin Herrenschmidt , Fengguang Wu , Greg KH , Guenter Roeck , Haiyue Wang , James Feist , Jason M Biils , Jean Delvare , Joel Stanley , Julia Cartwright , Miguel Ojeda , Milton Miller II , Pavel Machek , Randy Dunlap , Stef van Os , Sumeet R Pawnikar , Vernon Mauery Cc: linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, devicetree@vger.kernel.org, linux-hwmon@vger.kernel.org, linux-arm-kernel@lists.infradead.org, openbmc@lists.ozlabs.org, Jae Hyun Yoo Subject: [PATCH v3 08/10] Documentation: hwmon: Add documents for PECI hwmon client drivers Date: Tue, 10 Apr 2018 11:32:10 -0700 Message-Id: <20180410183212.16787-9-jae.hyun.yoo@linux.intel.com> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180410183212.16787-1-jae.hyun.yoo@linux.intel.com> References: <20180410183212.16787-1-jae.hyun.yoo@linux.intel.com> X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: =?utf-8?q?1597385142356118267?= X-GMAIL-MSGID: =?utf-8?q?1597385142356118267?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 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 Cc: Alan Cox Cc: Andrew Jeffery Cc: Andrew Lunn Cc: Andy Shevchenko Cc: Arnd Bergmann Cc: Benjamin Herrenschmidt Cc: Fengguang Wu Cc: Greg KH Cc: Guenter Roeck Cc: Jason M Biils Cc: Jean Delvare Cc: Joel Stanley Cc: Julia Cartwright Cc: Miguel Ojeda Cc: Milton Miller II Cc: Pavel Machek Cc: Randy Dunlap Cc: Stef van Os Cc: Sumeet R Pawnikar --- Documentation/hwmon/peci-cputemp | 88 +++++++++++++++++++++++++++++++++++++++ Documentation/hwmon/peci-dimmtemp | 50 ++++++++++++++++++++++ 2 files changed, 138 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..cdd5ea49a4a2 --- /dev/null +++ b/Documentation/hwmon/peci-cputemp @@ -0,0 +1,88 @@ +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 "DTS margin" +temp2_input Provides current DTS thermal margin to Tcontrol of the + CPU package. Value 0 means it reaches to Tcontrol + temperature. Sub-zero value means the die temperature + goes across Tconrtol to Tjmax. +temp2_min Provides the minimum DTS thermal margin to Tcontrol of + the CPU package. +temp2_lcrit Provides the value when the CPU package temperature + reaches to Tjmax. + +temp3_label "Tcontrol" +temp3_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. +temp3_crit Provides Tcontrol critical value of the CPU package + which is same to Tjmax. + +temp4_label "Tthrottle" +temp4_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. + +temp5_label "Tjmax" +temp5_input Provides the maximum junction temperature, Tjmax of the + CPU package. + +temp[6-*]_label Provides string "Core X", where X is resolved core + number. +temp[6-*]_input Provides current temperature of each core. +temp[6-*]_max Provides thermal control temperature of the core. +temp[6-*]_crit Provides shutdown temperature of the core. +temp[6-*]_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. -- 2.16.2