xref: /linux/Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon (revision 3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d)
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
23
24What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/energy1_input
25Date:		September 2023
26KernelVersion:	6.5
27Contact:	intel-xe@lists.freedesktop.org
28Description:	RO. Card energy input of device in microjoules.
29
30		Only supported for particular Intel Xe graphics platforms.
31
32What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power1_max_interval
33Date:		October 2023
34KernelVersion:	6.6
35Contact:	intel-xe@lists.freedesktop.org
36Description:	RW. Card sustained power limit interval (Tau in PL1/Tau) in
37		milliseconds over which sustained power is averaged.
38
39		Only supported for particular Intel Xe graphics platforms.
40
41What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power2_max
42Date:		February 2024
43KernelVersion:	6.8
44Contact:	intel-xe@lists.freedesktop.org
45Description:	RW. Package reactive sustained  (PL1) power limit in microwatts.
46
47		The power controller will throttle the operating frequency
48		if the power averaged over a window (typically seconds)
49		exceeds this limit. A read value of 0 means that the PL1
50		power limit is disabled, writing 0 disables the
51		limit. Writing values > 0 and <= TDP will enable the power limit.
52
53		Only supported for particular Intel Xe graphics platforms.
54
55What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power2_rated_max
56Date:		February 2024
57KernelVersion:	6.8
58Contact:	intel-xe@lists.freedesktop.org
59Description:	RO. Package default power limit (default TDP setting).
60
61		Only supported for particular Intel Xe graphics platforms.
62
63What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power1_crit
64Date:		May 2025
65KernelVersion:	6.15
66Contact:	intel-xe@lists.freedesktop.org
67Description:	RW. Card reactive critical (I1) power limit in microwatts.
68
69		Card reactive critical (I1) power limit in microwatts is exposed
70		for client products. The power controller will throttle the
71		operating frequency if the power averaged over a window exceeds
72		this limit.
73
74		Only supported for particular Intel Xe graphics platforms.
75
76What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/curr1_crit
77Date:		May 2025
78KernelVersion:	6.15
79Contact:	intel-xe@lists.freedesktop.org
80Description:	RW. Card reactive critical (I1) power limit in milliamperes.
81
82		Card reactive critical (I1) power limit in milliamperes is
83		exposed for server products. The power controller will throttle
84		the operating frequency if the power averaged over a window
85		exceeds this limit.
86
87What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/energy2_input
88Date:		February 2024
89KernelVersion:	6.8
90Contact:	intel-xe@lists.freedesktop.org
91Description:	RO. Package energy input of device in microjoules.
92
93		Only supported for particular Intel Xe graphics platforms.
94
95What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power2_max_interval
96Date:		February 2024
97KernelVersion:	6.8
98Contact:	intel-xe@lists.freedesktop.org
99Description:	RW. Package sustained power limit interval (Tau in PL1/Tau) in
100		milliseconds over which sustained power is averaged.
101
102		Only supported for particular Intel Xe graphics platforms.
103
104What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/in1_input
105Date:		February 2024
106KernelVersion:	6.8
107Contact:	intel-xe@lists.freedesktop.org
108Description:	RO. Package current voltage in millivolt.
109
110		Only supported for particular Intel Xe graphics platforms.
111
112What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp2_crit
113Date:		January 2026
114KernelVersion:	7.0
115Contact:	intel-xe@lists.freedesktop.org
116Description:	RO. Package critical temperature in millidegree Celsius.
117
118		Only supported for particular Intel Xe graphics platforms.
119
120What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp2_emergency
121Date:		January 2026
122KernelVersion:	7.0
123Contact:	intel-xe@lists.freedesktop.org
124Description:	RO. Package shutdown temperature in millidegree Celsius.
125
126		Only supported for particular Intel Xe graphics platforms.
127
128What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp2_input
129Date:		March 2025
130KernelVersion:	6.15
131Contact:	intel-xe@lists.freedesktop.org
132Description:	RO. Package temperature in millidegree Celsius.
133
134		Only supported for particular Intel Xe graphics platforms.
135
136What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp2_max
137Date:		January 2026
138KernelVersion:	7.0
139Contact:	intel-xe@lists.freedesktop.org
140Description:	RO. Package maximum temperature limit in millidegree Celsius.
141
142		Only supported for particular Intel Xe graphics platforms.
143
144What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp3_crit
145Date:		January 2026
146KernelVersion:	7.0
147Contact:	intel-xe@lists.freedesktop.org
148Description:	RO. VRAM critical temperature in millidegree Celsius.
149
150		Only supported for particular Intel Xe graphics platforms.
151
152What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp3_emergency
153Date:		January 2026
154KernelVersion:	7.0
155Contact:	intel-xe@lists.freedesktop.org
156Description:	RO. VRAM shutdown temperature in millidegree Celsius.
157
158		Only supported for particular Intel Xe graphics platforms.
159
160What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp3_input
161Date:		March 2025
162KernelVersion:	6.15
163Contact:	intel-xe@lists.freedesktop.org
164Description:	RO. VRAM temperature in millidegree Celsius.
165
166		Only supported for particular Intel Xe graphics platforms.
167
168What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp4_crit
169Date:		January 2026
170KernelVersion:	7.0
171Contact:	intel-xe@lists.freedesktop.org
172Description:	RO. Memory controller critical temperature in millidegree Celsius.
173
174		Only supported for particular Intel Xe graphics platforms.
175
176What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp4_emergency
177Date:		January 2026
178KernelVersion:	7.0
179Contact:	intel-xe@lists.freedesktop.org
180Description:	RO. Memory controller shutdown temperature in millidegree Celsius.
181
182		Only supported for particular Intel Xe graphics platforms.
183
184What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp4_input
185Date:		January 2026
186KernelVersion:	7.0
187Contact:	intel-xe@lists.freedesktop.org
188Description:	RO. Memory controller average temperature in millidegree Celsius.
189
190		Only supported for particular Intel Xe graphics platforms.
191
192What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp5_crit
193Date:		January 2026
194KernelVersion:	7.0
195Contact:	intel-xe@lists.freedesktop.org
196Description:	RO. GPU PCIe critical temperature in millidegree Celsius.
197
198		Only supported for particular Intel Xe graphics platforms.
199
200What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp5_emergency
201Date:		January 2026
202KernelVersion:	7.0
203Contact:	intel-xe@lists.freedesktop.org
204Description:	RO. GPU PCIe shutdown temperature in millidegree Celsius.
205
206		Only supported for particular Intel Xe graphics platforms.
207
208What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp5_input
209Date:		January 2026
210KernelVersion:	7.0
211Contact:	intel-xe@lists.freedesktop.org
212Description:	RO. GPU PCIe temperature in millidegree Celsius.
213
214What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp[6-21]_crit
215Date:		January 2026
216KernelVersion:	7.0
217Contact:	intel-xe@lists.freedesktop.org
218Description:	RO. VRAM channel critical temperature in millidegree Celsius.
219
220		Only supported for particular Intel Xe graphics platforms.
221
222What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp[6-21]_emergency
223Date:		January 2026
224KernelVersion:	7.0
225Contact:	intel-xe@lists.freedesktop.org
226Description:	RO. VRAM channel shutdown temperature in millidegree Celsius.
227
228		Only supported for particular Intel Xe graphics platforms.
229
230What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp[6-21]_input
231Date:		January 2026
232KernelVersion:	7.0
233Contact:	intel-xe@lists.freedesktop.org
234Description:	RO. VRAM channel temperature in millidegree Celsius.
235
236		Only supported for particular Intel Xe graphics platforms.
237
238What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/fan1_input
239Date:		March 2025
240KernelVersion:	6.16
241Contact:	intel-xe@lists.freedesktop.org
242Description:	RO. Fan 1 speed in RPM.
243
244		Only supported for particular Intel Xe graphics platforms.
245
246What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/fan2_input
247Date:		March 2025
248KernelVersion:	6.16
249Contact:	intel-xe@lists.freedesktop.org
250Description:	RO. Fan 2 speed in RPM.
251
252		Only supported for particular Intel Xe graphics platforms.
253
254		On DG2 the driver always shows two fan channels, because the
255		FSC_READ_NUM_FANS command does not work on some cards. OEMs
256		decide how the fans map to tach channels, so two fans can share
257		one tach line. When that happens, the second channel
258		reads 0 RPM even though the fan is spinning. This is normal, not
259		a bug.
260
261What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/fan3_input
262Date:		March 2025
263KernelVersion:	6.16
264Contact:	intel-xe@lists.freedesktop.org
265Description:	RO. Fan 3 speed in RPM.
266
267		Only supported for particular Intel Xe graphics platforms.
268
269What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power1_cap
270Date:		May 2025
271KernelVersion:	6.15
272Contact:	intel-xe@lists.freedesktop.org
273Description:	RW. Card burst (PL2) power limit in microwatts.
274
275		The power controller will throttle the operating frequency
276		if the power averaged over a window (typically milli seconds)
277		exceeds this limit. A read value of 0 means that the PL2
278		power limit is disabled, writing 0 disables the	limit.
279		PL2 is greater than PL1 and its time window is lesser
280		compared to PL1.
281
282		Only supported for particular Intel Xe graphics platforms.
283
284What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power2_cap
285Date:		May 2025
286KernelVersion:	6.15
287Contact:	intel-xe@lists.freedesktop.org
288Description:	RW. Package burst (PL2) power limit in microwatts.
289
290		The power controller will throttle the operating frequency
291		if the power averaged over a window (typically milli seconds)
292		exceeds this limit. A read value of 0 means that the PL2
293		power limit is disabled, writing 0 disables the	limit.
294		PL2 is greater than PL1 and its time window is lesser
295		compared to PL1.
296
297		Only supported for particular Intel Xe graphics platforms.
298
299What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power1_cap_interval
300Date:		May 2025
301KernelVersion:	6.15
302Contact:	intel-xe@lists.freedesktop.org
303Description:	RW. Card burst power limit interval (Tau in PL2/Tau) in
304		milliseconds over which sustained power is averaged.
305
306		Only supported for particular Intel Xe graphics platforms.
307
308What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power2_cap_interval
309Date:		May 2025
310KernelVersion:	6.15
311Contact:	intel-xe@lists.freedesktop.org
312Description:	RW. Package burst power limit interval (Tau in PL2/Tau) in
313		milliseconds over which sustained power is averaged.
314
315		Only supported for particular Intel Xe graphics platforms.
316