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authorDapeng Mi <dapeng1.mi@linux.intel.com>2026-09-17 09:52:33 +0800
committerIngo Molnar <mingo@kernel.org>2026-09-22 11:37:46 +0200
commit0102c8c7fdfc4bd700971daff2b94470f4eafae4 (patch)
tree531306c2299f9a269f0a986e29f17ba972180104 /Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon
downloadlinux-stable-0102c8c7fdfc4bd700971daff2b94470f4eafae4.tar.gz
linux-stable-0102c8c7fdfc4bd700971daff2b94470f4eafae4.zip
perf/x86/intel: Rename DMR offcore_rsp attribute to offmodule_rspgrafted
DMR introduces Offmodule Response events in place of the legacy Offcore Response events, but it still exposes the inherited offcore_rsp PMU attribute for programming the corresponding MSR data. Rename the DMR PMU attribute to offmodule_rsp so the sysfs interface matches the underlying event name and avoids user & tooling confusion. Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://patch.msgid.link/20260917015234.981153-12-dapeng1.mi@linux.intel.com
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+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power1_max
+Date: September 2023
+KernelVersion: 6.5
+Contact: intel-xe@lists.freedesktop.org
+Description: RW. Card reactive sustained (PL1) power limit in microwatts.
+
+ The power controller will throttle the operating frequency
+ if the power averaged over a window (typically seconds)
+ exceeds this limit. A read value of 0 means that the PL1
+ power limit is disabled, writing 0 disables the
+ limit. Writing values > 0 and <= TDP will enable the power limit.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power1_rated_max
+Date: September 2023
+KernelVersion: 6.5
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. Card default power limit (default TDP setting).
+
+ Only supported for particular Intel Xe graphics platforms.
+
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/energy1_input
+Date: September 2023
+KernelVersion: 6.5
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. Card energy input of device in microjoules.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power1_max_interval
+Date: October 2023
+KernelVersion: 6.6
+Contact: intel-xe@lists.freedesktop.org
+Description: RW. Card sustained power limit interval (Tau in PL1/Tau) in
+ milliseconds over which sustained power is averaged.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power2_max
+Date: February 2024
+KernelVersion: 6.8
+Contact: intel-xe@lists.freedesktop.org
+Description: RW. Package reactive sustained (PL1) power limit in microwatts.
+
+ The power controller will throttle the operating frequency
+ if the power averaged over a window (typically seconds)
+ exceeds this limit. A read value of 0 means that the PL1
+ power limit is disabled, writing 0 disables the
+ limit. Writing values > 0 and <= TDP will enable the power limit.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power2_rated_max
+Date: February 2024
+KernelVersion: 6.8
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. Package default power limit (default TDP setting).
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power1_crit
+Date: May 2025
+KernelVersion: 6.15
+Contact: intel-xe@lists.freedesktop.org
+Description: RW. Card reactive critical (I1) power limit in microwatts.
+
+ Card reactive critical (I1) power limit in microwatts is exposed
+ for client products. The power controller will throttle the
+ operating frequency if the power averaged over a window exceeds
+ this limit.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/curr1_crit
+Date: May 2025
+KernelVersion: 6.15
+Contact: intel-xe@lists.freedesktop.org
+Description: RW. Card reactive critical (I1) power limit in milliamperes.
+
+ Card reactive critical (I1) power limit in milliamperes is
+ exposed for server products. The power controller will throttle
+ the operating frequency if the power averaged over a window
+ exceeds this limit.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/energy2_input
+Date: February 2024
+KernelVersion: 6.8
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. Package energy input of device in microjoules.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power2_max_interval
+Date: February 2024
+KernelVersion: 6.8
+Contact: intel-xe@lists.freedesktop.org
+Description: RW. Package sustained power limit interval (Tau in PL1/Tau) in
+ milliseconds over which sustained power is averaged.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/in1_input
+Date: February 2024
+KernelVersion: 6.8
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. Package current voltage in millivolt.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp2_crit
+Date: January 2026
+KernelVersion: 7.0
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. Package critical temperature in millidegree Celsius.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp2_emergency
+Date: January 2026
+KernelVersion: 7.0
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. Package shutdown temperature in millidegree Celsius.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp2_input
+Date: March 2025
+KernelVersion: 6.15
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. Package temperature in millidegree Celsius.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp2_max
+Date: January 2026
+KernelVersion: 7.0
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. Package maximum temperature limit in millidegree Celsius.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp3_crit
+Date: January 2026
+KernelVersion: 7.0
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. VRAM critical temperature in millidegree Celsius.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp3_emergency
+Date: January 2026
+KernelVersion: 7.0
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. VRAM shutdown temperature in millidegree Celsius.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp3_input
+Date: March 2025
+KernelVersion: 6.15
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. VRAM temperature in millidegree Celsius.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp4_crit
+Date: January 2026
+KernelVersion: 7.0
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. Memory controller critical temperature in millidegree Celsius.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp4_emergency
+Date: January 2026
+KernelVersion: 7.0
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. Memory controller shutdown temperature in millidegree Celsius.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp4_input
+Date: January 2026
+KernelVersion: 7.0
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. Memory controller average temperature in millidegree Celsius.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp5_crit
+Date: January 2026
+KernelVersion: 7.0
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. GPU PCIe critical temperature in millidegree Celsius.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp5_emergency
+Date: January 2026
+KernelVersion: 7.0
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. GPU PCIe shutdown temperature in millidegree Celsius.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp5_input
+Date: January 2026
+KernelVersion: 7.0
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. GPU PCIe temperature in millidegree Celsius.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp[6-21]_crit
+Date: January 2026
+KernelVersion: 7.0
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. VRAM channel critical temperature in millidegree Celsius.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp[6-21]_emergency
+Date: January 2026
+KernelVersion: 7.0
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. VRAM channel shutdown temperature in millidegree Celsius.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/temp[6-21]_input
+Date: January 2026
+KernelVersion: 7.0
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. VRAM channel temperature in millidegree Celsius.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/fan1_input
+Date: March 2025
+KernelVersion: 6.16
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. Fan 1 speed in RPM.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/fan2_input
+Date: March 2025
+KernelVersion: 6.16
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. Fan 2 speed in RPM.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+ On DG2 the driver always shows two fan channels, because the
+ FSC_READ_NUM_FANS command does not work on some cards. OEMs
+ decide how the fans map to tach channels, so two fans can share
+ one tach line. When that happens, the second channel
+ reads 0 RPM even though the fan is spinning. This is normal, not
+ a bug.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/fan3_input
+Date: March 2025
+KernelVersion: 6.16
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. Fan 3 speed in RPM.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power1_cap
+Date: May 2025
+KernelVersion: 6.15
+Contact: intel-xe@lists.freedesktop.org
+Description: RW. Card burst (PL2) power limit in microwatts.
+
+ The power controller will throttle the operating frequency
+ if the power averaged over a window (typically milli seconds)
+ exceeds this limit. A read value of 0 means that the PL2
+ power limit is disabled, writing 0 disables the limit.
+ PL2 is greater than PL1 and its time window is lesser
+ compared to PL1.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power2_cap
+Date: May 2025
+KernelVersion: 6.15
+Contact: intel-xe@lists.freedesktop.org
+Description: RW. Package burst (PL2) power limit in microwatts.
+
+ The power controller will throttle the operating frequency
+ if the power averaged over a window (typically milli seconds)
+ exceeds this limit. A read value of 0 means that the PL2
+ power limit is disabled, writing 0 disables the limit.
+ PL2 is greater than PL1 and its time window is lesser
+ compared to PL1.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power1_cap_interval
+Date: May 2025
+KernelVersion: 6.15
+Contact: intel-xe@lists.freedesktop.org
+Description: RW. Card burst power limit interval (Tau in PL2/Tau) in
+ milliseconds over which sustained power is averaged.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power2_cap_interval
+Date: May 2025
+KernelVersion: 6.15
+Contact: intel-xe@lists.freedesktop.org
+Description: RW. Package burst power limit interval (Tau in PL2/Tau) in
+ milliseconds over which sustained power is averaged.
+
+ Only supported for particular Intel Xe graphics platforms.