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