1What: /sys/devices/.../hwmon/hwmon<i>/in0_input 2Date: February 2023 3KernelVersion: 6.2 4Contact: intel-gfx@lists.freedesktop.org 5Description: RO. Current Voltage in millivolt. 6 7 Only supported for particular Intel i915 graphics platforms. 8 9What: /sys/devices/.../hwmon/hwmon<i>/power1_max 10Date: February 2023 11KernelVersion: 6.2 12Contact: intel-gfx@lists.freedesktop.org 13Description: RW. Card reactive sustained (PL1/Tau) power limit in microwatts. 14 15 The power controller will throttle the operating frequency 16 if the power averaged over a window (typically seconds) 17 exceeds this limit. A read value of 0 means that the PL1 18 power limit is disabled, writing 0 disables the 19 limit. Writing values > 0 will enable the power limit. 20 21 Only supported for particular Intel i915 graphics platforms. 22 23What: /sys/devices/.../hwmon/hwmon<i>/power1_rated_max 24Date: February 2023 25KernelVersion: 6.2 26Contact: intel-gfx@lists.freedesktop.org 27Description: RO. Card default power limit (default TDP setting). 28 29 Only supported for particular Intel i915 graphics platforms. 30 31What: /sys/devices/.../hwmon/hwmon<i>/power1_max_interval 32Date: February 2023 33KernelVersion: 6.2 34Contact: intel-gfx@lists.freedesktop.org 35Description: RW. Sustained power limit interval (Tau in PL1/Tau) in 36 milliseconds over which sustained power is averaged. 37 38 Only supported for particular Intel i915 graphics platforms. 39 40What: /sys/devices/.../hwmon/hwmon<i>/power1_crit 41Date: February 2023 42KernelVersion: 6.2 43Contact: intel-gfx@lists.freedesktop.org 44Description: RW. Card reactive critical (I1) power limit in microwatts. 45 46 Card reactive critical (I1) power limit in microwatts is exposed 47 for client products. The power controller will throttle the 48 operating frequency if the power averaged over a window exceeds 49 this limit. 50 51 Only supported for particular Intel i915 graphics platforms. 52 53What: /sys/devices/.../hwmon/hwmon<i>/curr1_crit 54Date: February 2023 55KernelVersion: 6.2 56Contact: intel-gfx@lists.freedesktop.org 57Description: RW. Card reactive critical (I1) power limit in milliamperes. 58 59 Card reactive critical (I1) power limit in milliamperes is 60 exposed for server products. The power controller will throttle 61 the operating frequency if the power averaged over a window 62 exceeds this limit. 63 64 Only supported for particular Intel i915 graphics platforms. 65 66What: /sys/devices/.../hwmon/hwmon<i>/energy1_input 67Date: February 2023 68KernelVersion: 6.2 69Contact: intel-gfx@lists.freedesktop.org 70Description: RO. Energy input of device or gt in microjoules. 71 72 For i915 device level hwmon devices (name "i915") this 73 reflects energy input for the entire device. For gt level 74 hwmon devices (name "i915_gtN") this reflects energy input 75 for the gt. 76 77 Only supported for particular Intel i915 graphics platforms. 78
