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-rw-r--r--Documentation/ABI/testing/sysfs-platform-dfl-fme132
1 files changed, 132 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-platform-dfl-fme b/Documentation/ABI/testing/sysfs-platform-dfl-fme
index 72634d3ae4f4..3683cb1cdc3d 100644
--- a/Documentation/ABI/testing/sysfs-platform-dfl-fme
+++ b/Documentation/ABI/testing/sysfs-platform-dfl-fme
@@ -106,3 +106,135 @@ KernelVersion: 5.4
Contact: Wu Hao <hao.wu@intel.com>
Description: Read-only. Read this file to get the second error detected by
hardware.
+
+What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/name
+Date: October 2019
+KernelVersion: 5.5
+Contact: Wu Hao <hao.wu@intel.com>
+Description: Read-Only. Read this file to get the name of hwmon device, it
+ supports values:
+ 'dfl_fme_thermal' - thermal hwmon device name
+ 'dfl_fme_power' - power hwmon device name
+
+What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/temp1_input
+Date: October 2019
+KernelVersion: 5.5
+Contact: Wu Hao <hao.wu@intel.com>
+Description: Read-Only. It returns FPGA device temperature in millidegrees
+ Celsius.
+
+What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/temp1_max
+Date: October 2019
+KernelVersion: 5.5
+Contact: Wu Hao <hao.wu@intel.com>
+Description: Read-Only. It returns hardware threshold1 temperature in
+ millidegrees Celsius. If temperature rises at or above this
+ threshold, hardware starts 50% or 90% throttling (see
+ 'temp1_max_policy').
+
+What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/temp1_crit
+Date: October 2019
+KernelVersion: 5.5
+Contact: Wu Hao <hao.wu@intel.com>
+Description: Read-Only. It returns hardware threshold2 temperature in
+ millidegrees Celsius. If temperature rises at or above this
+ threshold, hardware starts 100% throttling.
+
+What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/temp1_emergency
+Date: October 2019
+KernelVersion: 5.5
+Contact: Wu Hao <hao.wu@intel.com>
+Description: Read-Only. It returns hardware trip threshold temperature in
+ millidegrees Celsius. If temperature rises at or above this
+ threshold, a fatal event will be triggered to board management
+ controller (BMC) to shutdown FPGA.
+
+What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/temp1_max_alarm
+Date: October 2019
+KernelVersion: 5.5
+Contact: Wu Hao <hao.wu@intel.com>
+Description: Read-only. It returns 1 if temperature is currently at or above
+ hardware threshold1 (see 'temp1_max'), otherwise 0.
+
+What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/temp1_crit_alarm
+Date: October 2019
+KernelVersion: 5.5
+Contact: Wu Hao <hao.wu@intel.com>
+Description: Read-only. It returns 1 if temperature is currently at or above
+ hardware threshold2 (see 'temp1_crit'), otherwise 0.
+
+What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/temp1_max_policy
+Date: October 2019
+KernelVersion: 5.5
+Contact: Wu Hao <hao.wu@intel.com>
+Description: Read-Only. Read this file to get the policy of hardware threshold1
+ (see 'temp1_max'). It only supports two values (policies):
+ 0 - AP2 state (90% throttling)
+ 1 - AP1 state (50% throttling)
+
+What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/power1_input
+Date: October 2019
+KernelVersion: 5.5
+Contact: Wu Hao <hao.wu@intel.com>
+Description: Read-Only. It returns current FPGA power consumption in uW.
+
+What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/power1_max
+Date: October 2019
+KernelVersion: 5.5
+Contact: Wu Hao <hao.wu@intel.com>
+Description: Read-Write. Read this file to get current hardware power
+ threshold1 in uW. If power consumption rises at or above
+ this threshold, hardware starts 50% throttling.
+ Write this file to set current hardware power threshold1 in uW.
+ As hardware only accepts values in Watts, so input value will
+ be round down per Watts (< 1 watts part will be discarded) and
+ clamped within the range from 0 to 127 Watts. Write fails with
+ -EINVAL if input parsing fails.
+
+What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/power1_crit
+Date: October 2019
+KernelVersion: 5.5
+Contact: Wu Hao <hao.wu@intel.com>
+Description: Read-Write. Read this file to get current hardware power
+ threshold2 in uW. If power consumption rises at or above
+ this threshold, hardware starts 90% throttling.
+ Write this file to set current hardware power threshold2 in uW.
+ As hardware only accepts values in Watts, so input value will
+ be round down per Watts (< 1 watts part will be discarded) and
+ clamped within the range from 0 to 127 Watts. Write fails with
+ -EINVAL if input parsing fails.
+
+What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/power1_max_alarm
+Date: October 2019
+KernelVersion: 5.5
+Contact: Wu Hao <hao.wu@intel.com>
+Description: Read-only. It returns 1 if power consumption is currently at or
+ above hardware threshold1 (see 'power1_max'), otherwise 0.
+
+What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/power1_crit_alarm
+Date: October 2019
+KernelVersion: 5.5
+Contact: Wu Hao <hao.wu@intel.com>
+Description: Read-only. It returns 1 if power consumption is currently at or
+ above hardware threshold2 (see 'power1_crit'), otherwise 0.
+
+What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/power1_xeon_limit
+Date: October 2019
+KernelVersion: 5.5
+Contact: Wu Hao <hao.wu@intel.com>
+Description: Read-Only. It returns power limit for XEON in uW.
+
+What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/power1_fpga_limit
+Date: October 2019
+KernelVersion: 5.5
+Contact: Wu Hao <hao.wu@intel.com>
+Description: Read-Only. It returns power limit for FPGA in uW.
+
+What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/power1_ltr
+Date: October 2019
+KernelVersion: 5.5
+Contact: Wu Hao <hao.wu@intel.com>
+Description: Read-only. Read this file to get current Latency Tolerance
+ Reporting (ltr) value. It returns 1 if all Accelerated
+ Function Units (AFUs) can tolerate latency >= 40us for memory
+ access or 0 if any AFU is latency sensitive (< 40us).