1 What: /sys/bus/pci/drivers/i915/.../ 1 What: /sys/bus/pci/drivers/i915/.../hwmon/hwmon<i>/in0_input
2 Date: February 2023 2 Date: February 2023
3 KernelVersion: 6.2 3 KernelVersion: 6.2
4 Contact: intel-gfx@lists.freedesktop.or 4 Contact: intel-gfx@lists.freedesktop.org
5 Description: RO. Current Voltage in millivo 5 Description: RO. Current Voltage in millivolt.
6 6
7 Only supported for particular 7 Only supported for particular Intel i915 graphics platforms.
8 8
9 What: /sys/bus/pci/drivers/i915/.../ 9 What: /sys/bus/pci/drivers/i915/.../hwmon/hwmon<i>/power1_max
10 Date: February 2023 10 Date: February 2023
11 KernelVersion: 6.2 11 KernelVersion: 6.2
12 Contact: intel-gfx@lists.freedesktop.or 12 Contact: intel-gfx@lists.freedesktop.org
13 Description: RW. Card reactive sustained ( 13 Description: RW. Card reactive sustained (PL1/Tau) power limit in microwatts.
14 14
15 The power controller will thro 15 The power controller will throttle the operating frequency
16 if the power averaged over a w 16 if the power averaged over a window (typically seconds)
17 exceeds this limit. A read val 17 exceeds this limit. A read value of 0 means that the PL1
18 power limit is disabled, writi 18 power limit is disabled, writing 0 disables the
19 limit. Writing values > 0 will 19 limit. Writing values > 0 will enable the power limit.
20 20
21 Only supported for particular 21 Only supported for particular Intel i915 graphics platforms.
22 22
23 What: /sys/bus/pci/drivers/i915/.../ 23 What: /sys/bus/pci/drivers/i915/.../hwmon/hwmon<i>/power1_rated_max
24 Date: February 2023 24 Date: February 2023
25 KernelVersion: 6.2 25 KernelVersion: 6.2
26 Contact: intel-gfx@lists.freedesktop.or 26 Contact: intel-gfx@lists.freedesktop.org
27 Description: RO. Card default power limit ( 27 Description: RO. Card default power limit (default TDP setting).
28 28
29 Only supported for particular 29 Only supported for particular Intel i915 graphics platforms.
30 30
31 What: /sys/bus/pci/drivers/i915/.../ 31 What: /sys/bus/pci/drivers/i915/.../hwmon/hwmon<i>/power1_max_interval
32 Date: February 2023 32 Date: February 2023
33 KernelVersion: 6.2 33 KernelVersion: 6.2
34 Contact: intel-gfx@lists.freedesktop.or 34 Contact: intel-gfx@lists.freedesktop.org
35 Description: RW. Sustained power limit inte 35 Description: RW. Sustained power limit interval (Tau in PL1/Tau) in
36 milliseconds over which sustai 36 milliseconds over which sustained power is averaged.
37 37
38 Only supported for particular 38 Only supported for particular Intel i915 graphics platforms.
39 39
40 What: /sys/bus/pci/drivers/i915/.../ 40 What: /sys/bus/pci/drivers/i915/.../hwmon/hwmon<i>/power1_crit
41 Date: February 2023 41 Date: February 2023
42 KernelVersion: 6.2 42 KernelVersion: 6.2
43 Contact: intel-gfx@lists.freedesktop.or 43 Contact: intel-gfx@lists.freedesktop.org
44 Description: RW. Card reactive critical (I1 44 Description: RW. Card reactive critical (I1) power limit in microwatts.
45 45
46 Card reactive critical (I1) po 46 Card reactive critical (I1) power limit in microwatts is exposed
47 for client products. The power 47 for client products. The power controller will throttle the
48 operating frequency if the pow 48 operating frequency if the power averaged over a window exceeds
49 this limit. 49 this limit.
50 50
51 Only supported for particular 51 Only supported for particular Intel i915 graphics platforms.
52 52
53 What: /sys/bus/pci/drivers/i915/.../ 53 What: /sys/bus/pci/drivers/i915/.../hwmon/hwmon<i>/curr1_crit
54 Date: February 2023 54 Date: February 2023
55 KernelVersion: 6.2 55 KernelVersion: 6.2
56 Contact: intel-gfx@lists.freedesktop.or 56 Contact: intel-gfx@lists.freedesktop.org
57 Description: RW. Card reactive critical (I1 57 Description: RW. Card reactive critical (I1) power limit in milliamperes.
58 58
59 Card reactive critical (I1) po 59 Card reactive critical (I1) power limit in milliamperes is
60 exposed for server products. T 60 exposed for server products. The power controller will throttle
61 the operating frequency if the 61 the operating frequency if the power averaged over a window
62 exceeds this limit. 62 exceeds this limit.
63 63
64 Only supported for particular 64 Only supported for particular Intel i915 graphics platforms.
65 65
66 What: /sys/bus/pci/drivers/i915/.../ 66 What: /sys/bus/pci/drivers/i915/.../hwmon/hwmon<i>/energy1_input
67 Date: February 2023 67 Date: February 2023
68 KernelVersion: 6.2 68 KernelVersion: 6.2
69 Contact: intel-gfx@lists.freedesktop.or 69 Contact: intel-gfx@lists.freedesktop.org
70 Description: RO. Energy input of device or 70 Description: RO. Energy input of device or gt in microjoules.
71 71
72 For i915 device level hwmon de 72 For i915 device level hwmon devices (name "i915") this
73 reflects energy input for the 73 reflects energy input for the entire device. For gt level
74 hwmon devices (name "i915_gtN" 74 hwmon devices (name "i915_gtN") this reflects energy input
75 for the gt. 75 for the gt.
76 76
77 Only supported for particular 77 Only supported for particular Intel i915 graphics platforms.
78 78
79 What: /sys/bus/pci/drivers/i915/.../ 79 What: /sys/bus/pci/drivers/i915/.../hwmon/hwmon<i>/fan1_input
80 Date: November 2024 80 Date: November 2024
81 KernelVersion: 6.12 81 KernelVersion: 6.12
82 Contact: intel-gfx@lists.freedesktop.or 82 Contact: intel-gfx@lists.freedesktop.org
83 Description: RO. Fan speed of device in RPM 83 Description: RO. Fan speed of device in RPM.
84 84
85 Only supported for particular 85 Only supported for particular Intel i915 graphics platforms.
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