xref: /linux/Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon (revision 07749061b837a1268146dc8a620a522253cea877)
1What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power1_max
2Date:		September 2023
3KernelVersion:	6.5
4Contact:	intel-xe@lists.freedesktop.org
5Description:	RW. Card reactive sustained  (PL1) power limit in microwatts.
6
7		The power controller will throttle the operating frequency
8		if the power averaged over a window (typically seconds)
9		exceeds this limit. A read value of 0 means that the PL1
10		power limit is disabled, writing 0 disables the
11		limit. Writing values > 0 and <= TDP will enable the power limit.
12
13		Only supported for particular Intel xe graphics platforms.
14
15What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power1_rated_max
16Date:		September 2023
17KernelVersion:	6.5
18Contact:	intel-xe@lists.freedesktop.org
19Description:	RO. Card default power limit (default TDP setting).
20
21		Only supported for particular Intel xe graphics platforms.
22
23What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power1_crit
24Date:		September 2023
25KernelVersion:	6.5
26Contact:	intel-xe@lists.freedesktop.org
27Description:	RW. Card reactive critical (I1) power limit in microwatts.
28
29		Card reactive critical (I1) power limit in microwatts is exposed
30		for client products. The power controller will throttle the
31		operating frequency if the power averaged over a window exceeds
32		this limit.
33
34		Only supported for particular Intel xe graphics platforms.
35
36What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/curr1_crit
37Date:		September 2023
38KernelVersion:	6.5
39Contact:	intel-xe@lists.freedesktop.org
40Description:	RW. Card reactive critical (I1) power limit in milliamperes.
41
42		Card reactive critical (I1) power limit in milliamperes is
43		exposed for server products. The power controller will throttle
44		the operating frequency if the power averaged over a window
45		exceeds this limit.
46
47What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/in0_input
48Date:		September 2023
49KernelVersion:	6.5
50Contact:	intel-xe@lists.freedesktop.org
51Description:	RO. Current Voltage in millivolt.
52
53		Only supported for particular Intel xe graphics platforms.
54
55What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/energy1_input
56Date:		September 2023
57KernelVersion:	6.5
58Contact:	intel-xe@lists.freedesktop.org
59Description:	RO. Energy input of device in microjoules.
60
61		Only supported for particular Intel xe graphics platforms.
62
63What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power1_max_interval
64Date:		October 2023
65KernelVersion:	6.6
66Contact:	intel-xe@lists.freedesktop.org
67Description:	RW. Sustained power limit interval (Tau in PL1/Tau) in
68		milliseconds over which sustained power is averaged.
69
70		Only supported for particular Intel xe graphics platforms.
71