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authorLinus Torvalds <torvalds@linux-foundation.org>2024-01-12 11:32:19 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2024-01-12 11:32:19 -0800
commitcf65598d5909acf5e7b7dc9e21786e386356bc81 (patch)
tree44745a47bfc24f7016ff3c3b1ee6d3b8abf517d7 /Documentation/ABI
parent70d201a40823acba23899342d62bc2644051ad2e (diff)
parentb76c01f1d950425924ee1c1377760de3c024ef78 (diff)
Merge tag 'drm-next-2024-01-10' of git://anongit.freedesktop.org/drm/drm
Pull drm updates from Dave Airlie: "This contains two major new drivers: - imagination is a first driver for Imagination Technologies devices, it only covers very specific devices, but there is hope to grow it - xe is a reboot of the i915 GPU (shares display) side using a more upstream focused development model, and trying to maximise code sharing. It's not enabled for any hw by default, and will hopefully get switched on for Intel's Lunarlake. This also drops a bunch of the old UMS ioctls. It's been dead long enough. amdgpu has a bunch of new color management code that is being used in the Steam Deck. amdgpu also has a new ACPI WBRF interaction to help avoid radio interference. Otherwise it's the usual lots of changes in lots of places. Detailed summary: new drivers: - imagination - new driver for Imagination Technologies GPU - xe - new driver for Intel GPUs using core drm concepts core: - add CLOSE_FB ioctl - remove old UMS ioctls - increase max objects to accomodate AMD color mgmt encoder: - create per-encoder debugfs directory edid: - split out drm_eld - SAD helpers - drop edid_firmware module parameter format-helper: - cache format conversion buffers sched: - move from kthread to workqueue - rename some internals - implement dynamic job-flow control gpuvm: - provide more features to handle GEM objects client: - don't acquire module reference displayport: - add mst path property documentation fdinfo: - alignment fix dma-buf: - add fence timestamp helper - add fence deadline support bridge: - transparent aux-bridge for DP/USB-C - lt8912b: add suspend/resume support and power regulator support panel: - edp: AUO B116XTN02, BOE NT116WHM-N21,836X2, NV116WHM-N49 - chromebook panel support - elida-kd35t133: rework pm - powkiddy RK2023 panel - himax-hx8394: drop prepare/unprepare and shutdown logic - BOE BP101WX1-100, Powkiddy X55, Ampire AM8001280G - Evervision VGG644804, SDC ATNA45AF01 - nv3052c: register docs, init sequence fixes, fascontek FS035VG158 - st7701: Anbernic RG-ARC support - r63353 panel controller - Ilitek ILI9805 panel controller - AUO G156HAN04.0 simplefb: - support memory regions - support power domains amdgpu: - add new 64-bit sequence number infrastructure - add AMD specific color management - ACPI WBRF support for RF interference handling - GPUVM updates - RAS updates - DCN 3.5 updates - Rework PCIe link speed handling - Document GPU reset types - DMUB fixes - eDP fixes - NBIO 7.9/7.11 updates - SubVP updates - XGMI PCIe state dumping for aqua vanjaram - GFX11 golden register updates - enable tunnelling on high pri compute amdkfd: - Migrate TLB flushing logic to amdgpu - Trap handler fixes - Fix restore workers handling on suspend/resume - Fix possible memory leak in pqm_uninit() - support import/export of dma-bufs using GEM handles radeon: - fix possible overflows in command buffer checking - check for errors in ring_lock i915: - reorg display code for reuse in xe driver - fdinfo memory stats printing - DP MST bandwidth mgmt improvements - DP panel replay enabling - MTL C20 phy state verification - MTL DP DSC fractional bpp support - Audio fastset support - use dma_fence interfaces instead of i915_sw_fence - Separate gem and display code - AUX register macro refactoring - Separate display module/device parameters - Move display capabilities debugfs under display - Makefile cleanups - Register cleanups - Move display lock inits under display/ - VLV/CHV DPIO PHY register and interface refactoring - DSI VBT sequence refactoring - C10/C20 PHY PLL hardware readout - DPLL code cleanups - Cleanup PXP plane protection checks - Improve display debug msgs - PSR selective fetch fixes/improvements - DP MST fixes - Xe2LPD FBC restrictions removed - DGFX uses direct VBT pin mapping - more MTL WAs - fix MTL eDP bug - eliminate use of kmap_atomic habanalabs: - sysfs entry to identify a device minor id with debugfs path - sysfs entry to expose device module id - add signed device info retrieval through INFO ioctl - add Gaudi2C device support - pcie reset prepare/done hooks msm: - Add support for SDM670, SM8650 - Handle the CFG interconnect to fix the obscure hangs / timeouts - Kconfig fix for QMP dependency - use managed allocators - DPU: SDM670, SM8650 support - DPU: Enable SmartDMA on SM8350 and SM8450 - DP: enable runtime PM support - GPU: add metadata UAPI - GPU: move devcoredumps to GPU device - GPU: convert to drm_exec ivpu: - update FW API - new debugfs file - a new NOP job submission test mode - improve suspend/resume - PM improvements - MMU PT optimizations - firmware profile frequency support - support for uncached buffers - switch to gem shmem helpers - replace kthread with threaded irqs rockchip: - rk3066_hdmi: convert to atomic - vop2: support nv20 and nv30 - rk3588 support mediatek: - use devm_platform_ioremap_resource - stop using iommu_present - MT8188 VDOSYS1 display support panfrost: - PM improvements - improve interrupt handling as poweroff qaic: - allow to run with single MSI - support host/device time sync - switch to persistent DRM devices exynos: - fix potential error pointer dereference - fix wrong error checking - add missing call to drm_atomic_helper_shutdown omapdrm: - dma-fence lockdep annotation fix tidss: - dma-fence lockdep annotation fix - support for AM62A7 v3d: - BCM2712 - rpi5 support - fdinfo + gputop support - uapi for CPU job handling virtio-gpu: - add context debug name" * tag 'drm-next-2024-01-10' of git://anongit.freedesktop.org/drm/drm: (2340 commits) drm/amd/display: Allow z8/z10 from driver drm/amd/display: fix bandwidth validation failure on DCN 2.1 drm/amdgpu: apply the RV2 system aperture fix to RN/CZN as well drm/amd/display: Move fixpt_from_s3132 to amdgpu_dm drm/amd/display: Fix recent checkpatch errors in amdgpu_dm Revert "drm/amdkfd: Relocate TBA/TMA to opposite side of VM hole" drm/amd/display: avoid stringop-overflow warnings for dp_decide_lane_settings() drm/amd/display: Fix power_helpers.c codestyle drm/amd/display: Fix hdcp_log.h codestyle drm/amd/display: Fix hdcp2_execution.c codestyle drm/amd/display: Fix hdcp_psp.h codestyle drm/amd/display: Fix freesync.c codestyle drm/amd/display: Fix hdcp_psp.c codestyle drm/amd/display: Fix hdcp1_execution.c codestyle drm/amd/pm/smu7: fix a memleak in smu7_hwmgr_backend_init drm/amdkfd: Fix iterator used outside loop in 'kfd_add_peer_prop()' drm/amdgpu: Drop 'fence' check in 'to_amdgpu_amdkfd_fence()' drm/amdkfd: Confirm list is non-empty before utilizing list_first_entry in kfd_topology.c drm/amdgpu: Fix '*fw' from request_firmware() not released in 'amdgpu_ucode_request()' drm/amdgpu: Fix variable 'mca_funcs' dereferenced before NULL check in 'amdgpu_mca_smu_get_mca_entry()' ...
Diffstat (limited to 'Documentation/ABI')
-rw-r--r--Documentation/ABI/testing/debugfs-driver-habanalabs72
-rw-r--r--Documentation/ABI/testing/sysfs-driver-habanalabs12
-rw-r--r--Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon70
3 files changed, 118 insertions, 36 deletions
diff --git a/Documentation/ABI/testing/debugfs-driver-habanalabs b/Documentation/ABI/testing/debugfs-driver-habanalabs
index 042fd125fbc9..a7a432dc4015 100644
--- a/Documentation/ABI/testing/debugfs-driver-habanalabs
+++ b/Documentation/ABI/testing/debugfs-driver-habanalabs
@@ -1,4 +1,4 @@
-What: /sys/kernel/debug/accel/<n>/addr
+What: /sys/kernel/debug/accel/<parent_device>/addr
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
@@ -8,34 +8,34 @@ Description: Sets the device address to be used for read or write through
only when the IOMMU is disabled.
The acceptable value is a string that starts with "0x"
-What: /sys/kernel/debug/accel/<n>/clk_gate
+What: /sys/kernel/debug/accel/<parent_device>/clk_gate
Date: May 2020
KernelVersion: 5.8
Contact: ogabbay@kernel.org
Description: This setting is now deprecated as clock gating is handled solely by the f/w
-What: /sys/kernel/debug/accel/<n>/command_buffers
+What: /sys/kernel/debug/accel/<parent_device>/command_buffers
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Displays a list with information about the currently allocated
command buffers
-What: /sys/kernel/debug/accel/<n>/command_submission
+What: /sys/kernel/debug/accel/<parent_device>/command_submission
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Displays a list with information about the currently active
command submissions
-What: /sys/kernel/debug/accel/<n>/command_submission_jobs
+What: /sys/kernel/debug/accel/<parent_device>/command_submission_jobs
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Displays a list with detailed information about each JOB (CB) of
each active command submission
-What: /sys/kernel/debug/accel/<n>/data32
+What: /sys/kernel/debug/accel/<parent_device>/data32
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
@@ -50,7 +50,7 @@ Description: Allows the root user to read or write directly through the
If the IOMMU is disabled, it also allows the root user to read
or write from the host a device VA of a host mapped memory
-What: /sys/kernel/debug/accel/<n>/data64
+What: /sys/kernel/debug/accel/<parent_device>/data64
Date: Jan 2020
KernelVersion: 5.6
Contact: ogabbay@kernel.org
@@ -65,7 +65,7 @@ Description: Allows the root user to read or write 64 bit data directly
If the IOMMU is disabled, it also allows the root user to read
or write from the host a device VA of a host mapped memory
-What: /sys/kernel/debug/accel/<n>/data_dma
+What: /sys/kernel/debug/accel/<parent_device>/data_dma
Date: Apr 2021
KernelVersion: 5.13
Contact: ogabbay@kernel.org
@@ -83,7 +83,7 @@ Description: Allows the root user to read from the device's internal
workloads.
Only supported on GAUDI at this stage.
-What: /sys/kernel/debug/accel/<n>/device
+What: /sys/kernel/debug/accel/<parent_device>/device
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
@@ -91,14 +91,14 @@ Description: Enables the root user to set the device to specific state.
Valid values are "disable", "enable", "suspend", "resume".
User can read this property to see the valid values
-What: /sys/kernel/debug/accel/<n>/device_release_watchdog_timeout
+What: /sys/kernel/debug/accel/<parent_device>/device_release_watchdog_timeout
Date: Oct 2022
KernelVersion: 6.2
Contact: ttayar@habana.ai
Description: The watchdog timeout value in seconds for a device release upon
certain error cases, after which the device is reset.
-What: /sys/kernel/debug/accel/<n>/dma_size
+What: /sys/kernel/debug/accel/<parent_device>/dma_size
Date: Apr 2021
KernelVersion: 5.13
Contact: ogabbay@kernel.org
@@ -108,7 +108,7 @@ Description: Specify the size of the DMA transaction when using DMA to read
When the write is finished, the user can read the "data_dma"
blob
-What: /sys/kernel/debug/accel/<n>/dump_razwi_events
+What: /sys/kernel/debug/accel/<parent_device>/dump_razwi_events
Date: Aug 2022
KernelVersion: 5.20
Contact: fkassabri@habana.ai
@@ -117,7 +117,7 @@ Description: Dumps all razwi events to dmesg if exist.
the routine will clear the status register.
Usage: cat dump_razwi_events
-What: /sys/kernel/debug/accel/<n>/dump_security_violations
+What: /sys/kernel/debug/accel/<parent_device>/dump_security_violations
Date: Jan 2021
KernelVersion: 5.12
Contact: ogabbay@kernel.org
@@ -125,14 +125,14 @@ Description: Dumps all security violations to dmesg. This will also ack
all security violations meanings those violations will not be
dumped next time user calls this API
-What: /sys/kernel/debug/accel/<n>/engines
+What: /sys/kernel/debug/accel/<parent_device>/engines
Date: Jul 2019
KernelVersion: 5.3
Contact: ogabbay@kernel.org
Description: Displays the status registers values of the device engines and
their derived idle status
-What: /sys/kernel/debug/accel/<n>/i2c_addr
+What: /sys/kernel/debug/accel/<parent_device>/i2c_addr
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
@@ -140,7 +140,7 @@ Description: Sets I2C device address for I2C transaction that is generated
by the device's CPU, Not available when device is loaded with secured
firmware
-What: /sys/kernel/debug/accel/<n>/i2c_bus
+What: /sys/kernel/debug/accel/<parent_device>/i2c_bus
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
@@ -148,7 +148,7 @@ Description: Sets I2C bus address for I2C transaction that is generated by
the device's CPU, Not available when device is loaded with secured
firmware
-What: /sys/kernel/debug/accel/<n>/i2c_data
+What: /sys/kernel/debug/accel/<parent_device>/i2c_data
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
@@ -157,7 +157,7 @@ Description: Triggers an I2C transaction that is generated by the device's
reading from the file generates a read transaction, Not available
when device is loaded with secured firmware
-What: /sys/kernel/debug/accel/<n>/i2c_len
+What: /sys/kernel/debug/accel/<parent_device>/i2c_len
Date: Dec 2021
KernelVersion: 5.17
Contact: obitton@habana.ai
@@ -165,7 +165,7 @@ Description: Sets I2C length in bytes for I2C transaction that is generated b
the device's CPU, Not available when device is loaded with secured
firmware
-What: /sys/kernel/debug/accel/<n>/i2c_reg
+What: /sys/kernel/debug/accel/<parent_device>/i2c_reg
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
@@ -173,35 +173,35 @@ Description: Sets I2C register id for I2C transaction that is generated by
the device's CPU, Not available when device is loaded with secured
firmware
-What: /sys/kernel/debug/accel/<n>/led0
+What: /sys/kernel/debug/accel/<parent_device>/led0
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Sets the state of the first S/W led on the device, Not available
when device is loaded with secured firmware
-What: /sys/kernel/debug/accel/<n>/led1
+What: /sys/kernel/debug/accel/<parent_device>/led1
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Sets the state of the second S/W led on the device, Not available
when device is loaded with secured firmware
-What: /sys/kernel/debug/accel/<n>/led2
+What: /sys/kernel/debug/accel/<parent_device>/led2
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Sets the state of the third S/W led on the device, Not available
when device is loaded with secured firmware
-What: /sys/kernel/debug/accel/<n>/memory_scrub
+What: /sys/kernel/debug/accel/<parent_device>/memory_scrub
Date: May 2022
KernelVersion: 5.19
Contact: dhirschfeld@habana.ai
Description: Allows the root user to scrub the dram memory. The scrubbing
value can be set using the debugfs file memory_scrub_val.
-What: /sys/kernel/debug/accel/<n>/memory_scrub_val
+What: /sys/kernel/debug/accel/<parent_device>/memory_scrub_val
Date: May 2022
KernelVersion: 5.19
Contact: dhirschfeld@habana.ai
@@ -209,7 +209,7 @@ Description: The value to which the dram will be set to when the user
scrubs the dram using 'memory_scrub' debugfs file and
the scrubbing value when using module param 'memory_scrub'
-What: /sys/kernel/debug/accel/<n>/mmu
+What: /sys/kernel/debug/accel/<parent_device>/mmu
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
@@ -219,7 +219,7 @@ Description: Displays the hop values and physical address for a given ASID
e.g. to display info about VA 0x1000 for ASID 1 you need to do:
echo "1 0x1000" > /sys/kernel/debug/accel/0/mmu
-What: /sys/kernel/debug/accel/<n>/mmu_error
+What: /sys/kernel/debug/accel/<parent_device>/mmu_error
Date: Mar 2021
KernelVersion: 5.12
Contact: fkassabri@habana.ai
@@ -229,7 +229,7 @@ Description: Check and display page fault or access violation mmu errors for
echo "0x200" > /sys/kernel/debug/accel/0/mmu_error
cat /sys/kernel/debug/accel/0/mmu_error
-What: /sys/kernel/debug/accel/<n>/monitor_dump
+What: /sys/kernel/debug/accel/<parent_device>/monitor_dump
Date: Mar 2022
KernelVersion: 5.19
Contact: osharabi@habana.ai
@@ -243,7 +243,7 @@ Description: Allows the root user to dump monitors status from the device's
This interface doesn't support concurrency in the same device.
Only supported on GAUDI.
-What: /sys/kernel/debug/accel/<n>/monitor_dump_trig
+What: /sys/kernel/debug/accel/<parent_device>/monitor_dump_trig
Date: Mar 2022
KernelVersion: 5.19
Contact: osharabi@habana.ai
@@ -253,14 +253,14 @@ Description: Triggers dump of monitor data. The value to trigger the operatio
When the write is finished, the user can read the "monitor_dump"
blob
-What: /sys/kernel/debug/accel/<n>/set_power_state
+What: /sys/kernel/debug/accel/<parent_device>/set_power_state
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Sets the PCI power state. Valid values are "1" for D0 and "2"
for D3Hot
-What: /sys/kernel/debug/accel/<n>/skip_reset_on_timeout
+What: /sys/kernel/debug/accel/<parent_device>/skip_reset_on_timeout
Date: Jun 2021
KernelVersion: 5.13
Contact: ynudelman@habana.ai
@@ -268,7 +268,7 @@ Description: Sets the skip reset on timeout option for the device. Value of
"0" means device will be reset in case some CS has timed out,
otherwise it will not be reset.
-What: /sys/kernel/debug/accel/<n>/state_dump
+What: /sys/kernel/debug/accel/<parent_device>/state_dump
Date: Oct 2021
KernelVersion: 5.15
Contact: ynudelman@habana.ai
@@ -279,7 +279,7 @@ Description: Gets the state dump occurring on a CS timeout or failure.
Writing an integer X discards X state dumps, so that the
next read would return X+1-st newest state dump.
-What: /sys/kernel/debug/accel/<n>/stop_on_err
+What: /sys/kernel/debug/accel/<parent_device>/stop_on_err
Date: Mar 2020
KernelVersion: 5.6
Contact: ogabbay@kernel.org
@@ -287,13 +287,13 @@ Description: Sets the stop-on_error option for the device engines. Value of
"0" is for disable, otherwise enable.
Relevant only for GOYA and GAUDI.
-What: /sys/kernel/debug/accel/<n>/timeout_locked
+What: /sys/kernel/debug/accel/<parent_device>/timeout_locked
Date: Sep 2021
KernelVersion: 5.16
Contact: obitton@habana.ai
Description: Sets the command submission timeout value in seconds.
-What: /sys/kernel/debug/accel/<n>/userptr
+What: /sys/kernel/debug/accel/<parent_device>/userptr
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
@@ -301,7 +301,7 @@ Description: Displays a list with information about the current user
pointers (user virtual addresses) that are pinned and mapped
to DMA addresses
-What: /sys/kernel/debug/accel/<n>/userptr_lookup
+What: /sys/kernel/debug/accel/<parent_device>/userptr_lookup
Date: Oct 2021
KernelVersion: 5.15
Contact: ogabbay@kernel.org
@@ -309,7 +309,7 @@ Description: Allows to search for specific user pointers (user virtual
addresses) that are pinned and mapped to DMA addresses, and see
their resolution to the specific dma address.
-What: /sys/kernel/debug/accel/<n>/vm
+What: /sys/kernel/debug/accel/<parent_device>/vm
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
diff --git a/Documentation/ABI/testing/sysfs-driver-habanalabs b/Documentation/ABI/testing/sysfs-driver-habanalabs
index c63ca1ad500d..4244f5af4b54 100644
--- a/Documentation/ABI/testing/sysfs-driver-habanalabs
+++ b/Documentation/ABI/testing/sysfs-driver-habanalabs
@@ -149,6 +149,18 @@ Contact: ogabbay@kernel.org
Description: Displays the current clock frequency, in Hz, of the MME compute
engine. This property is valid only for the Goya ASIC family
+What: /sys/class/accel/accel<n>/device/module_id
+Date: Nov 2023
+KernelVersion: not yet upstreamed
+Contact: ogabbay@kernel.org
+Description: Displays the device's module id
+
+What: /sys/class/accel/accel<n>/device/parent_device
+Date: Nov 2023
+KernelVersion: 6.8
+Contact: ttayar@habana.ai
+Description: Displays the name of the parent device of the accel device
+
What: /sys/class/accel/accel<n>/device/pci_addr
Date: Jan 2019
KernelVersion: 5.1
diff --git a/Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon b/Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon
new file mode 100644
index 000000000000..8c321bc9dc04
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon
@@ -0,0 +1,70 @@
+What: /sys/devices/.../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/devices/.../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/devices/.../hwmon/hwmon<i>/power1_crit
+Date: September 2023
+KernelVersion: 6.5
+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/devices/.../hwmon/hwmon<i>/curr1_crit
+Date: September 2023
+KernelVersion: 6.5
+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/devices/.../hwmon/hwmon<i>/in0_input
+Date: September 2023
+KernelVersion: 6.5
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. Current Voltage in millivolt.
+
+ Only supported for particular Intel xe graphics platforms.
+
+What: /sys/devices/.../hwmon/hwmon<i>/energy1_input
+Date: September 2023
+KernelVersion: 6.5
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. Energy input of device in microjoules.
+
+ Only supported for particular Intel xe graphics platforms.
+
+What: /sys/devices/.../hwmon/hwmon<i>/power1_max_interval
+Date: October 2023
+KernelVersion: 6.6
+Contact: intel-xe@lists.freedesktop.org
+Description: RW. Sustained power limit interval (Tau in PL1/Tau) in
+ milliseconds over which sustained power is averaged.
+
+ Only supported for particular Intel xe graphics platforms.