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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-08-07 13:11:27 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-08-07 13:11:27 +0000
commit34996e42f82bfd60bc2c191e5cae3c6ab233ec6c (patch)
tree62db60558cbf089714b48daeabca82bf2b20b20e /Documentation/ABI
parentAdding debian version 6.8.12-1. (diff)
downloadlinux-34996e42f82bfd60bc2c191e5cae3c6ab233ec6c.tar.xz
linux-34996e42f82bfd60bc2c191e5cae3c6ab233ec6c.zip
Merging upstream version 6.9.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/ABI')
-rw-r--r--Documentation/ABI/obsolete/sysfs-gpio4
-rw-r--r--Documentation/ABI/testing/configfs-usb-gadget-ffs12
-rw-r--r--Documentation/ABI/testing/debugfs-cxl34
-rw-r--r--Documentation/ABI/testing/debugfs-driver-qat26
-rw-r--r--Documentation/ABI/testing/debugfs-hisi-hpre22
-rw-r--r--Documentation/ABI/testing/debugfs-hisi-sec22
-rw-r--r--Documentation/ABI/testing/debugfs-hisi-zip22
-rw-r--r--Documentation/ABI/testing/debugfs-intel-iommu276
-rw-r--r--Documentation/ABI/testing/gpio-cdev9
-rw-r--r--Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm87
-rw-r--r--Documentation/ABI/testing/sysfs-bus-cxl34
-rw-r--r--Documentation/ABI/testing/sysfs-bus-dax153
-rw-r--r--Documentation/ABI/testing/sysfs-bus-iio-adc-pac19349
-rw-r--r--Documentation/ABI/testing/sysfs-bus-pci-devices-aer_stats18
-rw-r--r--Documentation/ABI/testing/sysfs-bus-pci-devices-avs8
-rw-r--r--Documentation/ABI/testing/sysfs-bus-usb10
-rw-r--r--Documentation/ABI/testing/sysfs-bus-vdpa10
-rw-r--r--Documentation/ABI/testing/sysfs-class-hwmon27
-rw-r--r--Documentation/ABI/testing/sysfs-class-led-trigger-netdev12
-rw-r--r--Documentation/ABI/testing/sysfs-class-led-trigger-tty14
-rw-r--r--Documentation/ABI/testing/sysfs-class-net-queues23
-rw-r--r--Documentation/ABI/testing/sysfs-class-usb_role6
-rw-r--r--Documentation/ABI/testing/sysfs-driver-qat20
-rw-r--r--Documentation/ABI/testing/sysfs-fs-f2fs52
-rw-r--r--Documentation/ABI/testing/sysfs-fs-virtiofs11
-rw-r--r--Documentation/ABI/testing/sysfs-kernel-mm-cma6
-rw-r--r--Documentation/ABI/testing/sysfs-kernel-mm-damon16
-rw-r--r--Documentation/ABI/testing/sysfs-kernel-mm-mempolicy4
-rw-r--r--Documentation/ABI/testing/sysfs-kernel-mm-mempolicy-weighted-interleave25
29 files changed, 917 insertions, 55 deletions
diff --git a/Documentation/ABI/obsolete/sysfs-gpio b/Documentation/ABI/obsolete/sysfs-gpio
index b8b0fd341c..da1345d854 100644
--- a/Documentation/ABI/obsolete/sysfs-gpio
+++ b/Documentation/ABI/obsolete/sysfs-gpio
@@ -28,5 +28,5 @@ Description:
/label ... (r/o) descriptive, not necessarily unique
/ngpio ... (r/o) number of GPIOs; numbered N to N + (ngpio - 1)
- This ABI is deprecated and will be removed after 2020. It is
- replaced with the GPIO character device.
+ This ABI is obsoleted by Documentation/ABI/testing/gpio-cdev and will be
+ removed after 2020.
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-ffs b/Documentation/ABI/testing/configfs-usb-gadget-ffs
index e39b27653c..bf8936ff6d 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget-ffs
+++ b/Documentation/ABI/testing/configfs-usb-gadget-ffs
@@ -4,6 +4,14 @@ KernelVersion: 3.13
Description: The purpose of this directory is to create and remove it.
A corresponding USB function instance is created/removed.
- There are no attributes here.
- All parameters are set through FunctionFS.
+ All attributes are read only:
+
+ ============= ============================================
+ ready 1 if the function is ready to be used, E.G.
+ if userspace has written descriptors and
+ strings to ep0, so the gadget can be
+ enabled - 0 otherwise.
+ ============= ============================================
+
+ All other parameters are set through FunctionFS.
diff --git a/Documentation/ABI/testing/debugfs-cxl b/Documentation/ABI/testing/debugfs-cxl
index fe61d372e3..c61f9b8139 100644
--- a/Documentation/ABI/testing/debugfs-cxl
+++ b/Documentation/ABI/testing/debugfs-cxl
@@ -33,3 +33,37 @@ Description:
device cannot clear poison from the address, -ENXIO is returned.
The clear_poison attribute is only visible for devices
supporting the capability.
+
+What: /sys/kernel/debug/cxl/einj_types
+Date: January, 2024
+KernelVersion: v6.9
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RO) Prints the CXL protocol error types made available by
+ the platform in the format:
+
+ 0x<error number> <error type>
+
+ The possible error types are (as of ACPI v6.5):
+
+ 0x1000 CXL.cache Protocol Correctable
+ 0x2000 CXL.cache Protocol Uncorrectable non-fatal
+ 0x4000 CXL.cache Protocol Uncorrectable fatal
+ 0x8000 CXL.mem Protocol Correctable
+ 0x10000 CXL.mem Protocol Uncorrectable non-fatal
+ 0x20000 CXL.mem Protocol Uncorrectable fatal
+
+ The <error number> can be written to einj_inject to inject
+ <error type> into a chosen dport.
+
+What: /sys/kernel/debug/cxl/$dport_dev/einj_inject
+Date: January, 2024
+KernelVersion: v6.9
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (WO) Writing an integer to this file injects the corresponding
+ CXL protocol error into $dport_dev ($dport_dev will be a device
+ name from /sys/bus/pci/devices). The integer to type mapping for
+ injection can be found by reading from einj_types. If the dport
+ was enumerated in RCH mode, a CXL 1.1 error is injected, otherwise
+ a CXL 2.0 error is injected.
diff --git a/Documentation/ABI/testing/debugfs-driver-qat b/Documentation/ABI/testing/debugfs-driver-qat
index b2db010d85..bd6793760f 100644
--- a/Documentation/ABI/testing/debugfs-driver-qat
+++ b/Documentation/ABI/testing/debugfs-driver-qat
@@ -81,3 +81,29 @@ Description: (RO) Read returns, for each Acceleration Engine (AE), the number
<N>: Number of Compress and Verify (CnV) errors and type
of the last CnV error detected by Acceleration
Engine N.
+
+What: /sys/kernel/debug/qat_<device>_<BDF>/heartbeat/inject_error
+Date: March 2024
+KernelVersion: 6.8
+Contact: qat-linux@intel.com
+Description: (WO) Write to inject an error that simulates an heartbeat
+ failure. This is to be used for testing purposes.
+
+ After writing this file, the driver stops arbitration on a
+ random engine and disables the fetching of heartbeat counters.
+ If a workload is running on the device, a job submitted to the
+ accelerator might not get a response and a read of the
+ `heartbeat/status` attribute might report -1, i.e. device
+ unresponsive.
+ The error is unrecoverable thus the device must be restarted to
+ restore its functionality.
+
+ This attribute is available only when the kernel is built with
+ CONFIG_CRYPTO_DEV_QAT_ERROR_INJECTION=y.
+
+ A write of 1 enables error injection.
+
+ The following example shows how to enable error injection::
+
+ # cd /sys/kernel/debug/qat_<device>_<BDF>
+ # echo 1 > heartbeat/inject_error
diff --git a/Documentation/ABI/testing/debugfs-hisi-hpre b/Documentation/ABI/testing/debugfs-hisi-hpre
index 8e8de49c5c..d4e16ef9ac 100644
--- a/Documentation/ABI/testing/debugfs-hisi-hpre
+++ b/Documentation/ABI/testing/debugfs-hisi-hpre
@@ -111,6 +111,28 @@ Description: QM debug registers(regs) read hardware register value. This
node is used to show the change of the qm register values. This
node can be help users to check the change of register values.
+What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/qm_state
+Date: Jan 2024
+Contact: linux-crypto@vger.kernel.org
+Description: Dump the state of the device.
+ 0: busy, 1: idle.
+ Only available for PF, and take no other effect on HPRE.
+
+What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/dev_timeout
+Date: Feb 2024
+Contact: linux-crypto@vger.kernel.org
+Description: Set the wait time when stop queue fails. Available for both PF
+ and VF, and take no other effect on HPRE.
+ 0: not wait(default), others value: wait dev_timeout * 20 microsecond.
+
+What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/dev_state
+Date: Feb 2024
+Contact: linux-crypto@vger.kernel.org
+Description: Dump the stop queue status of the QM. The default value is 0,
+ if dev_timeout is set, when stop queue fails, the dev_state
+ will return non-zero value. Available for both PF and VF,
+ and take no other effect on HPRE.
+
What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/diff_regs
Date: Mar 2022
Contact: linux-crypto@vger.kernel.org
diff --git a/Documentation/ABI/testing/debugfs-hisi-sec b/Documentation/ABI/testing/debugfs-hisi-sec
index deeefe2c73..6c6c9a6e15 100644
--- a/Documentation/ABI/testing/debugfs-hisi-sec
+++ b/Documentation/ABI/testing/debugfs-hisi-sec
@@ -91,6 +91,28 @@ Description: QM debug registers(regs) read hardware register value. This
node is used to show the change of the qm register values. This
node can be help users to check the change of register values.
+What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/qm_state
+Date: Jan 2024
+Contact: linux-crypto@vger.kernel.org
+Description: Dump the state of the device.
+ 0: busy, 1: idle.
+ Only available for PF, and take no other effect on SEC.
+
+What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/dev_timeout
+Date: Feb 2024
+Contact: linux-crypto@vger.kernel.org
+Description: Set the wait time when stop queue fails. Available for both PF
+ and VF, and take no other effect on SEC.
+ 0: not wait(default), others value: wait dev_timeout * 20 microsecond.
+
+What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/dev_state
+Date: Feb 2024
+Contact: linux-crypto@vger.kernel.org
+Description: Dump the stop queue status of the QM. The default value is 0,
+ if dev_timeout is set, when stop queue fails, the dev_state
+ will return non-zero value. Available for both PF and VF,
+ and take no other effect on SEC.
+
What: /sys/kernel/debug/hisi_sec2/<bdf>/sec_dfx/diff_regs
Date: Mar 2022
Contact: linux-crypto@vger.kernel.org
diff --git a/Documentation/ABI/testing/debugfs-hisi-zip b/Documentation/ABI/testing/debugfs-hisi-zip
index 593714afae..a22dd69422 100644
--- a/Documentation/ABI/testing/debugfs-hisi-zip
+++ b/Documentation/ABI/testing/debugfs-hisi-zip
@@ -104,6 +104,28 @@ Description: QM debug registers(regs) read hardware register value. This
node is used to show the change of the qm registers value. This
node can be help users to check the change of register values.
+What: /sys/kernel/debug/hisi_zip/<bdf>/qm/qm_state
+Date: Jan 2024
+Contact: linux-crypto@vger.kernel.org
+Description: Dump the state of the device.
+ 0: busy, 1: idle.
+ Only available for PF, and take no other effect on ZIP.
+
+What: /sys/kernel/debug/hisi_zip/<bdf>/qm/dev_timeout
+Date: Feb 2024
+Contact: linux-crypto@vger.kernel.org
+Description: Set the wait time when stop queue fails. Available for both PF
+ and VF, and take no other effect on ZIP.
+ 0: not wait(default), others value: wait dev_timeout * 20 microsecond.
+
+What: /sys/kernel/debug/hisi_zip/<bdf>/qm/dev_state
+Date: Feb 2024
+Contact: linux-crypto@vger.kernel.org
+Description: Dump the stop queue status of the QM. The default value is 0,
+ if dev_timeout is set, when stop queue fails, the dev_state
+ will return non-zero value. Available for both PF and VF,
+ and take no other effect on ZIP.
+
What: /sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/diff_regs
Date: Mar 2022
Contact: linux-crypto@vger.kernel.org
diff --git a/Documentation/ABI/testing/debugfs-intel-iommu b/Documentation/ABI/testing/debugfs-intel-iommu
new file mode 100644
index 0000000000..2ab8464504
--- /dev/null
+++ b/Documentation/ABI/testing/debugfs-intel-iommu
@@ -0,0 +1,276 @@
+What: /sys/kernel/debug/iommu/intel/iommu_regset
+Date: December 2023
+Contact: Jingqi Liu <Jingqi.liu@intel.com>
+Description:
+ This file dumps all the register contents for each IOMMU device.
+
+ Example in Kabylake:
+
+ ::
+
+ $ sudo cat /sys/kernel/debug/iommu/intel/iommu_regset
+
+ IOMMU: dmar0 Register Base Address: 26be37000
+
+ Name Offset Contents
+ VER 0x00 0x0000000000000010
+ GCMD 0x18 0x0000000000000000
+ GSTS 0x1c 0x00000000c7000000
+ FSTS 0x34 0x0000000000000000
+ FECTL 0x38 0x0000000000000000
+
+ [...]
+
+ IOMMU: dmar1 Register Base Address: fed90000
+
+ Name Offset Contents
+ VER 0x00 0x0000000000000010
+ GCMD 0x18 0x0000000000000000
+ GSTS 0x1c 0x00000000c7000000
+ FSTS 0x34 0x0000000000000000
+ FECTL 0x38 0x0000000000000000
+
+ [...]
+
+ IOMMU: dmar2 Register Base Address: fed91000
+
+ Name Offset Contents
+ VER 0x00 0x0000000000000010
+ GCMD 0x18 0x0000000000000000
+ GSTS 0x1c 0x00000000c7000000
+ FSTS 0x34 0x0000000000000000
+ FECTL 0x38 0x0000000000000000
+
+ [...]
+
+What: /sys/kernel/debug/iommu/intel/ir_translation_struct
+Date: December 2023
+Contact: Jingqi Liu <Jingqi.liu@intel.com>
+Description:
+ This file dumps the table entries for Interrupt
+ remapping and Interrupt posting.
+
+ Example in Kabylake:
+
+ ::
+
+ $ sudo cat /sys/kernel/debug/iommu/intel/ir_translation_struct
+
+ Remapped Interrupt supported on IOMMU: dmar0
+ IR table address:100900000
+
+ Entry SrcID DstID Vct IRTE_high IRTE_low
+ 0 00:0a.0 00000080 24 0000000000040050 000000800024000d
+ 1 00:0a.0 00000001 ef 0000000000040050 0000000100ef000d
+
+ Remapped Interrupt supported on IOMMU: dmar1
+ IR table address:100300000
+ Entry SrcID DstID Vct IRTE_high IRTE_low
+ 0 00:02.0 00000002 26 0000000000040010 000000020026000d
+
+ [...]
+
+ ****
+
+ Posted Interrupt supported on IOMMU: dmar0
+ IR table address:100900000
+ Entry SrcID PDA_high PDA_low Vct IRTE_high IRTE_low
+
+What: /sys/kernel/debug/iommu/intel/dmar_translation_struct
+Date: December 2023
+Contact: Jingqi Liu <Jingqi.liu@intel.com>
+Description:
+ This file dumps Intel IOMMU DMA remapping tables, such
+ as root table, context table, PASID directory and PASID
+ table entries in debugfs. For legacy mode, it doesn't
+ support PASID, and hence PASID field is defaulted to
+ '-1' and other PASID related fields are invalid.
+
+ Example in Kabylake:
+
+ ::
+
+ $ sudo cat /sys/kernel/debug/iommu/intel/dmar_translation_struct
+
+ IOMMU dmar1: Root Table Address: 0x103027000
+ B.D.F Root_entry
+ 00:02.0 0x0000000000000000:0x000000010303e001
+
+ Context_entry
+ 0x0000000000000102:0x000000010303f005
+
+ PASID PASID_table_entry
+ -1 0x0000000000000000:0x0000000000000000:0x0000000000000000
+
+ IOMMU dmar0: Root Table Address: 0x103028000
+ B.D.F Root_entry
+ 00:0a.0 0x0000000000000000:0x00000001038a7001
+
+ Context_entry
+ 0x0000000000000000:0x0000000103220e7d
+
+ PASID PASID_table_entry
+ 0 0x0000000000000000:0x0000000000800002:0x00000001038a5089
+
+ [...]
+
+What: /sys/kernel/debug/iommu/intel/invalidation_queue
+Date: December 2023
+Contact: Jingqi Liu <Jingqi.liu@intel.com>
+Description:
+ This file exports invalidation queue internals of each
+ IOMMU device.
+
+ Example in Kabylake:
+
+ ::
+
+ $ sudo cat /sys/kernel/debug/iommu/intel/invalidation_queue
+
+ Invalidation queue on IOMMU: dmar0
+ Base: 0x10022e000 Head: 20 Tail: 20
+ Index qw0 qw1 qw2
+ 0 0000000000000014 0000000000000000 0000000000000000
+ 1 0000000200000025 0000000100059c04 0000000000000000
+ 2 0000000000000014 0000000000000000 0000000000000000
+
+ qw3 status
+ 0000000000000000 0000000000000000
+ 0000000000000000 0000000000000000
+ 0000000000000000 0000000000000000
+
+ [...]
+
+ Invalidation queue on IOMMU: dmar1
+ Base: 0x10026e000 Head: 32 Tail: 32
+ Index qw0 qw1 status
+ 0 0000000000000004 0000000000000000 0000000000000000
+ 1 0000000200000025 0000000100059804 0000000000000000
+ 2 0000000000000011 0000000000000000 0000000000000000
+
+ [...]
+
+What: /sys/kernel/debug/iommu/intel/dmar_perf_latency
+Date: December 2023
+Contact: Jingqi Liu <Jingqi.liu@intel.com>
+Description:
+ This file is used to control and show counts of
+ execution time ranges for various types per DMAR.
+
+ Firstly, write a value to
+ /sys/kernel/debug/iommu/intel/dmar_perf_latency
+ to enable sampling.
+
+ The possible values are as follows:
+
+ * 0 - disable sampling all latency data
+
+ * 1 - enable sampling IOTLB invalidation latency data
+
+ * 2 - enable sampling devTLB invalidation latency data
+
+ * 3 - enable sampling intr entry cache invalidation latency data
+
+ Next, read /sys/kernel/debug/iommu/intel/dmar_perf_latency gives
+ a snapshot of sampling result of all enabled monitors.
+
+ Examples in Kabylake:
+
+ ::
+
+ 1) Disable sampling all latency data:
+
+ $ sudo echo 0 > /sys/kernel/debug/iommu/intel/dmar_perf_latency
+
+ 2) Enable sampling IOTLB invalidation latency data
+
+ $ sudo echo 1 > /sys/kernel/debug/iommu/intel/dmar_perf_latency
+
+ $ sudo cat /sys/kernel/debug/iommu/intel/dmar_perf_latency
+
+ IOMMU: dmar0 Register Base Address: 26be37000
+ <0.1us 0.1us-1us 1us-10us 10us-100us 100us-1ms
+ inv_iotlb 0 0 0 0 0
+
+ 1ms-10ms >=10ms min(us) max(us) average(us)
+ inv_iotlb 0 0 0 0 0
+
+ [...]
+
+ IOMMU: dmar2 Register Base Address: fed91000
+ <0.1us 0.1us-1us 1us-10us 10us-100us 100us-1ms
+ inv_iotlb 0 0 18 0 0
+
+ 1ms-10ms >=10ms min(us) max(us) average(us)
+ inv_iotlb 0 0 2 2 2
+
+ 3) Enable sampling devTLB invalidation latency data
+
+ $ sudo echo 2 > /sys/kernel/debug/iommu/intel/dmar_perf_latency
+
+ $ sudo cat /sys/kernel/debug/iommu/intel/dmar_perf_latency
+
+ IOMMU: dmar0 Register Base Address: 26be37000
+ <0.1us 0.1us-1us 1us-10us 10us-100us 100us-1ms
+ inv_devtlb 0 0 0 0 0
+
+ >=10ms min(us) max(us) average(us)
+ inv_devtlb 0 0 0 0
+
+ [...]
+
+What: /sys/kernel/debug/iommu/intel/<bdf>/domain_translation_struct
+Date: December 2023
+Contact: Jingqi Liu <Jingqi.liu@intel.com>
+Description:
+ This file dumps a specified page table of Intel IOMMU
+ in legacy mode or scalable mode.
+
+ For a device that only supports legacy mode, dump its
+ page table by the debugfs file in the debugfs device
+ directory. e.g.
+ /sys/kernel/debug/iommu/intel/0000:00:02.0/domain_translation_struct.
+
+ For a device that supports scalable mode, dump the
+ page table of specified pasid by the debugfs file in
+ the debugfs pasid directory. e.g.
+ /sys/kernel/debug/iommu/intel/0000:00:02.0/1/domain_translation_struct.
+
+ Examples in Kabylake:
+
+ ::
+
+ 1) Dump the page table of device "0000:00:02.0" that only supports legacy mode.
+
+ $ sudo cat /sys/kernel/debug/iommu/intel/0000:00:02.0/domain_translation_struct
+
+ Device 0000:00:02.0 @0x1017f8000
+ IOVA_PFN PML5E PML4E
+ 0x000000008d800 | 0x0000000000000000 0x00000001017f9003
+ 0x000000008d801 | 0x0000000000000000 0x00000001017f9003
+ 0x000000008d802 | 0x0000000000000000 0x00000001017f9003
+
+ PDPE PDE PTE
+ 0x00000001017fa003 0x00000001017fb003 0x000000008d800003
+ 0x00000001017fa003 0x00000001017fb003 0x000000008d801003
+ 0x00000001017fa003 0x00000001017fb003 0x000000008d802003
+
+ [...]
+
+ 2) Dump the page table of device "0000:00:0a.0" with PASID "1" that
+ supports scalable mode.
+
+ $ sudo cat /sys/kernel/debug/iommu/intel/0000:00:0a.0/1/domain_translation_struct
+
+ Device 0000:00:0a.0 with pasid 1 @0x10c112000
+ IOVA_PFN PML5E PML4E
+ 0x0000000000000 | 0x0000000000000000 0x000000010df93003
+ 0x0000000000001 | 0x0000000000000000 0x000000010df93003
+ 0x0000000000002 | 0x0000000000000000 0x000000010df93003
+
+ PDPE PDE PTE
+ 0x0000000106ae6003 0x0000000104b38003 0x0000000147c00803
+ 0x0000000106ae6003 0x0000000104b38003 0x0000000147c01803
+ 0x0000000106ae6003 0x0000000104b38003 0x0000000147c02803
+
+ [...]
diff --git a/Documentation/ABI/testing/gpio-cdev b/Documentation/ABI/testing/gpio-cdev
index 66bdcd188b..c9689b2a6f 100644
--- a/Documentation/ABI/testing/gpio-cdev
+++ b/Documentation/ABI/testing/gpio-cdev
@@ -6,8 +6,9 @@ Description:
The character device files /dev/gpiochip* are the interface
between GPIO chips and userspace.
- The ioctl(2)-based ABI is defined and documented in
- [include/uapi]<linux/gpio.h>.
+ The ioctl(2)-based ABI is defined in
+ [include/uapi]<linux/gpio.h> and documented in
+ Documentation/userspace-api/gpio/chardev.rst.
The following file operations are supported:
@@ -17,8 +18,8 @@ Description:
ioctl(2)
Initiate various actions.
- See the inline documentation in [include/uapi]<linux/gpio.h>
- for descriptions of all ioctls.
+ See Documentation/userspace-api/gpio/chardev.rst
+ for a description of all ioctls.
close(2)
Stops and free up the I/O contexts that was associated
diff --git a/Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm b/Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm
index 4dd49b1595..b4d0fc8d31 100644
--- a/Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm
+++ b/Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm
@@ -170,3 +170,90 @@ Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_t
Description:
(RW) Set/Get the MSR(mux select register) for the DSB subunit
TPDM.
+
+What: /sys/bus/coresight/devices/<tpdm-name>/cmb_mode
+Date: January 2024
+KernelVersion 6.9
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description: (Write) Set the data collection mode of CMB tpdm. Continuous
+ change creates CMB data set elements on every CMBCLK edge.
+ Trace-on-change creates CMB data set elements only when a new
+ data set element differs in value from the previous element
+ in a CMB data set.
+
+ Accepts only one of the 2 values - 0 or 1.
+ 0 : Continuous CMB collection mode.
+ 1 : Trace-on-change CMB collection mode.
+
+What: /sys/bus/coresight/devices/<tpdm-name>/cmb_trig_patt/xpr[0:1]
+Date: January 2024
+KernelVersion 6.9
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ (RW) Set/Get the value of the trigger pattern for the CMB
+ subunit TPDM.
+
+What: /sys/bus/coresight/devices/<tpdm-name>/cmb_trig_patt/xpmr[0:1]
+Date: January 2024
+KernelVersion 6.9
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ (RW) Set/Get the mask of the trigger pattern for the CMB
+ subunit TPDM.
+
+What: /sys/bus/coresight/devices/<tpdm-name>/dsb_patt/tpr[0:1]
+Date: January 2024
+KernelVersion 6.9
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ (RW) Set/Get the value of the pattern for the CMB subunit TPDM.
+
+What: /sys/bus/coresight/devices/<tpdm-name>/dsb_patt/tpmr[0:1]
+Date: January 2024
+KernelVersion 6.9
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ (RW) Set/Get the mask of the pattern for the CMB subunit TPDM.
+
+What: /sys/bus/coresight/devices/<tpdm-name>/cmb_patt/enable_ts
+Date: January 2024
+KernelVersion 6.9
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ (Write) Set the pattern timestamp of CMB tpdm. Read
+ the pattern timestamp of CMB tpdm.
+
+ Accepts only one of the 2 values - 0 or 1.
+ 0 : Disable CMB pattern timestamp.
+ 1 : Enable CMB pattern timestamp.
+
+What: /sys/bus/coresight/devices/<tpdm-name>/cmb_trig_ts
+Date: January 2024
+KernelVersion 6.9
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ (RW) Set/Get the trigger timestamp of the CMB for tpdm.
+
+ Accepts only one of the 2 values - 0 or 1.
+ 0 : Set the CMB trigger type to false
+ 1 : Set the CMB trigger type to true
+
+What: /sys/bus/coresight/devices/<tpdm-name>/cmb_ts_all
+Date: January 2024
+KernelVersion 6.9
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ (RW) Read or write the status of timestamp upon all interface.
+ Only value 0 and 1 can be written to this node. Set this node to 1 to requeset
+ timestamp to all trace packet.
+ Accepts only one of the 2 values - 0 or 1.
+ 0 : Disable the timestamp of all trace packets.
+ 1 : Enable the timestamp of all trace packets.
+
+What: /sys/bus/coresight/devices/<tpdm-name>/cmb_msr/msr[0:31]
+Date: January 2024
+KernelVersion 6.9
+Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
+Description:
+ (RW) Set/Get the MSR(mux select register) for the CMB subunit
+ TPDM.
diff --git a/Documentation/ABI/testing/sysfs-bus-cxl b/Documentation/ABI/testing/sysfs-bus-cxl
index fff2581b80..3f5627a121 100644
--- a/Documentation/ABI/testing/sysfs-bus-cxl
+++ b/Documentation/ABI/testing/sysfs-bus-cxl
@@ -552,3 +552,37 @@ Description:
attribute is only visible for devices supporting the
capability. The retrieved errors are logged as kernel
events when cxl_poison event tracing is enabled.
+
+
+What: /sys/bus/cxl/devices/regionZ/accessY/read_bandwidth
+ /sys/bus/cxl/devices/regionZ/accessY/write_banwidth
+Date: Jan, 2024
+KernelVersion: v6.9
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RO) The aggregated read or write bandwidth of the region. The
+ number is the accumulated read or write bandwidth of all CXL memory
+ devices that contributes to the region in MB/s. It is
+ identical data that should appear in
+ /sys/devices/system/node/nodeX/accessY/initiators/read_bandwidth or
+ /sys/devices/system/node/nodeX/accessY/initiators/write_bandwidth.
+ See Documentation/ABI/stable/sysfs-devices-node. access0 provides
+ the number to the closest initiator and access1 provides the
+ number to the closest CPU.
+
+
+What: /sys/bus/cxl/devices/regionZ/accessY/read_latency
+ /sys/bus/cxl/devices/regionZ/accessY/write_latency
+Date: Jan, 2024
+KernelVersion: v6.9
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RO) The read or write latency of the region. The number is
+ the worst read or write latency of all CXL memory devices that
+ contributes to the region in nanoseconds. It is identical data
+ that should appear in
+ /sys/devices/system/node/nodeX/accessY/initiators/read_latency or
+ /sys/devices/system/node/nodeX/accessY/initiators/write_latency.
+ See Documentation/ABI/stable/sysfs-devices-node. access0 provides
+ the number to the closest initiator and access1 provides the
+ number to the closest CPU.
diff --git a/Documentation/ABI/testing/sysfs-bus-dax b/Documentation/ABI/testing/sysfs-bus-dax
new file mode 100644
index 0000000000..b34266bfae
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-dax
@@ -0,0 +1,153 @@
+What: /sys/bus/dax/devices/daxX.Y/align
+Date: October, 2020
+KernelVersion: v5.10
+Contact: nvdimm@lists.linux.dev
+Description:
+ (RW) Provides a way to specify an alignment for a dax device.
+ Values allowed are constrained by the physical address ranges
+ that back the dax device, and also by arch requirements.
+
+What: /sys/bus/dax/devices/daxX.Y/mapping
+Date: October, 2020
+KernelVersion: v5.10
+Contact: nvdimm@lists.linux.dev
+Description:
+ (WO) Provides a way to allocate a mapping range under a dax
+ device. Specified in the format <start>-<end>.
+
+What: /sys/bus/dax/devices/daxX.Y/mapping[0..N]/start
+What: /sys/bus/dax/devices/daxX.Y/mapping[0..N]/end
+What: /sys/bus/dax/devices/daxX.Y/mapping[0..N]/page_offset
+Date: October, 2020
+KernelVersion: v5.10
+Contact: nvdimm@lists.linux.dev
+Description:
+ (RO) A dax device may have multiple constituent discontiguous
+ address ranges. These are represented by the different
+ 'mappingX' subdirectories. The 'start' attribute indicates the
+ start physical address for the given range. The 'end' attribute
+ indicates the end physical address for the given range. The
+ 'page_offset' attribute indicates the offset of the current
+ range in the dax device.
+
+What: /sys/bus/dax/devices/daxX.Y/resource
+Date: June, 2019
+KernelVersion: v5.3
+Contact: nvdimm@lists.linux.dev
+Description:
+ (RO) The resource attribute indicates the starting physical
+ address of a dax device. In case of a device with multiple
+ constituent ranges, it indicates the starting address of the
+ first range.
+
+What: /sys/bus/dax/devices/daxX.Y/size
+Date: October, 2020
+KernelVersion: v5.10
+Contact: nvdimm@lists.linux.dev
+Description:
+ (RW) The size attribute indicates the total size of a dax
+ device. For creating subdivided dax devices, or for resizing
+ an existing device, the new size can be written to this as
+ part of the reconfiguration process.
+
+What: /sys/bus/dax/devices/daxX.Y/numa_node
+Date: November, 2019
+KernelVersion: v5.5
+Contact: nvdimm@lists.linux.dev
+Description:
+ (RO) If NUMA is enabled and the platform has affinitized the
+ backing device for this dax device, emit the CPU node
+ affinity for this device.
+
+What: /sys/bus/dax/devices/daxX.Y/target_node
+Date: February, 2019
+KernelVersion: v5.1
+Contact: nvdimm@lists.linux.dev
+Description:
+ (RO) The target-node attribute is the Linux numa-node that a
+ device-dax instance may create when it is online. Prior to
+ being online the device's 'numa_node' property reflects the
+ closest online cpu node which is the typical expectation of a
+ device 'numa_node'. Once it is online it becomes its own
+ distinct numa node.
+
+What: $(readlink -f /sys/bus/dax/devices/daxX.Y)/../dax_region/available_size
+Date: October, 2020
+KernelVersion: v5.10
+Contact: nvdimm@lists.linux.dev
+Description:
+ (RO) The available_size attribute tracks available dax region
+ capacity. This only applies to volatile hmem devices, not pmem
+ devices, since pmem devices are defined by nvdimm namespace
+ boundaries.
+
+What: $(readlink -f /sys/bus/dax/devices/daxX.Y)/../dax_region/size
+Date: July, 2017
+KernelVersion: v5.1
+Contact: nvdimm@lists.linux.dev
+Description:
+ (RO) The size attribute indicates the size of a given dax region
+ in bytes.
+
+What: $(readlink -f /sys/bus/dax/devices/daxX.Y)/../dax_region/align
+Date: October, 2020
+KernelVersion: v5.10
+Contact: nvdimm@lists.linux.dev
+Description:
+ (RO) The align attribute indicates alignment of the dax region.
+ Changes on align may not always be valid, when say certain
+ mappings were created with 2M and then we switch to 1G. This
+ validates all ranges against the new value being attempted, post
+ resizing.
+
+What: $(readlink -f /sys/bus/dax/devices/daxX.Y)/../dax_region/seed
+Date: October, 2020
+KernelVersion: v5.10
+Contact: nvdimm@lists.linux.dev
+Description:
+ (RO) The seed device is a concept for dynamic dax regions to be
+ able to split the region amongst multiple sub-instances. The
+ seed device, similar to libnvdimm seed devices, is a device
+ that starts with zero capacity allocated and unbound to a
+ driver.
+
+What: $(readlink -f /sys/bus/dax/devices/daxX.Y)/../dax_region/create
+Date: October, 2020
+KernelVersion: v5.10
+Contact: nvdimm@lists.linux.dev
+Description:
+ (RW) The create interface to the dax region provides a way to
+ create a new unconfigured dax device under the given region, which
+ can then be configured (with a size etc.) and then probed.
+
+What: $(readlink -f /sys/bus/dax/devices/daxX.Y)/../dax_region/delete
+Date: October, 2020
+KernelVersion: v5.10
+Contact: nvdimm@lists.linux.dev
+Description:
+ (WO) The delete interface for a dax region provides for deletion
+ of any 0-sized and idle dax devices.
+
+What: $(readlink -f /sys/bus/dax/devices/daxX.Y)/../dax_region/id
+Date: July, 2017
+KernelVersion: v5.1
+Contact: nvdimm@lists.linux.dev
+Description:
+ (RO) The id attribute indicates the region id of a dax region.
+
+What: /sys/bus/dax/devices/daxX.Y/memmap_on_memory
+Date: January, 2024
+KernelVersion: v6.8
+Contact: nvdimm@lists.linux.dev
+Description:
+ (RW) Control the memmap_on_memory setting if the dax device
+ were to be hotplugged as system memory. This determines whether
+ the 'altmap' for the hotplugged memory will be placed on the
+ device being hotplugged (memmap_on_memory=1) or if it will be
+ placed on regular memory (memmap_on_memory=0). This attribute
+ must be set before the device is handed over to the 'kmem'
+ driver (i.e. hotplugged into system-ram). Additionally, this
+ depends on CONFIG_MHP_MEMMAP_ON_MEMORY, and a globally enabled
+ memmap_on_memory parameter for memory_hotplug. This is
+ typically set on the kernel command line -
+ memory_hotplug.memmap_on_memory set to 'true' or 'force'."
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-adc-pac1934 b/Documentation/ABI/testing/sysfs-bus-iio-adc-pac1934
new file mode 100644
index 0000000000..625b7f8678
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-adc-pac1934
@@ -0,0 +1,9 @@
+What: /sys/bus/iio/devices/iio:deviceX/in_shunt_resistorY
+KernelVersion: 6.7
+Contact: linux-iio@vger.kernel.org
+Description:
+ The value of the shunt resistor may be known only at runtime
+ and set by a client application. This attribute allows to
+ set its value in micro-ohms. X is the IIO index of the device.
+ Y is the channel number. The value is used to calculate
+ current, power and accumulated energy.
diff --git a/Documentation/ABI/testing/sysfs-bus-pci-devices-aer_stats b/Documentation/ABI/testing/sysfs-bus-pci-devices-aer_stats
index 860db53037..d1f67bb81d 100644
--- a/Documentation/ABI/testing/sysfs-bus-pci-devices-aer_stats
+++ b/Documentation/ABI/testing/sysfs-bus-pci-devices-aer_stats
@@ -11,7 +11,7 @@ saw any problems).
What: /sys/bus/pci/devices/<dev>/aer_dev_correctable
Date: July 2018
-KernelVersion: 4.19.0
+KernelVersion: 4.19.0
Contact: linux-pci@vger.kernel.org, rajatja@google.com
Description: List of correctable errors seen and reported by this
PCI device using ERR_COR. Note that since multiple errors may
@@ -32,7 +32,7 @@ Description: List of correctable errors seen and reported by this
What: /sys/bus/pci/devices/<dev>/aer_dev_fatal
Date: July 2018
-KernelVersion: 4.19.0
+KernelVersion: 4.19.0
Contact: linux-pci@vger.kernel.org, rajatja@google.com
Description: List of uncorrectable fatal errors seen and reported by this
PCI device using ERR_FATAL. Note that since multiple errors may
@@ -62,7 +62,7 @@ Description: List of uncorrectable fatal errors seen and reported by this
What: /sys/bus/pci/devices/<dev>/aer_dev_nonfatal
Date: July 2018
-KernelVersion: 4.19.0
+KernelVersion: 4.19.0
Contact: linux-pci@vger.kernel.org, rajatja@google.com
Description: List of uncorrectable nonfatal errors seen and reported by this
PCI device using ERR_NONFATAL. Note that since multiple errors
@@ -100,20 +100,20 @@ collectors) that are AER capable. These indicate the number of error messages as
device, so these counters include them and are thus cumulative of all the error
messages on the PCI hierarchy originating at that root port.
-What: /sys/bus/pci/devices/<dev>/aer_stats/aer_rootport_total_err_cor
+What: /sys/bus/pci/devices/<dev>/aer_rootport_total_err_cor
Date: July 2018
-KernelVersion: 4.19.0
+KernelVersion: 4.19.0
Contact: linux-pci@vger.kernel.org, rajatja@google.com
Description: Total number of ERR_COR messages reported to rootport.
-What: /sys/bus/pci/devices/<dev>/aer_stats/aer_rootport_total_err_fatal
+What: /sys/bus/pci/devices/<dev>/aer_rootport_total_err_fatal
Date: July 2018
-KernelVersion: 4.19.0
+KernelVersion: 4.19.0
Contact: linux-pci@vger.kernel.org, rajatja@google.com
Description: Total number of ERR_FATAL messages reported to rootport.
-What: /sys/bus/pci/devices/<dev>/aer_stats/aer_rootport_total_err_nonfatal
+What: /sys/bus/pci/devices/<dev>/aer_rootport_total_err_nonfatal
Date: July 2018
-KernelVersion: 4.19.0
+KernelVersion: 4.19.0
Contact: linux-pci@vger.kernel.org, rajatja@google.com
Description: Total number of ERR_NONFATAL messages reported to rootport.
diff --git a/Documentation/ABI/testing/sysfs-bus-pci-devices-avs b/Documentation/ABI/testing/sysfs-bus-pci-devices-avs
new file mode 100644
index 0000000000..ebff3fa120
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-pci-devices-avs
@@ -0,0 +1,8 @@
+What: /sys/devices/pci0000:00/<dev>/avs/fw_version
+Date: February 2024
+Contact: Cezary Rojewski <cezary.rojewski@intel.com>
+Description:
+ Version of AudioDSP firmware ASoC avs driver is communicating
+ with.
+
+ Format: %d.%d.%d.%d, type:major:minor:build.
diff --git a/Documentation/ABI/testing/sysfs-bus-usb b/Documentation/ABI/testing/sysfs-bus-usb
index 2b7108e219..af9b653422 100644
--- a/Documentation/ABI/testing/sysfs-bus-usb
+++ b/Documentation/ABI/testing/sysfs-bus-usb
@@ -442,6 +442,16 @@ What: /sys/bus/usb/devices/usbX/descriptors
Description:
Contains the interface descriptors, in binary.
+What: /sys/bus/usb/devices/usbX/bos_descriptors
+Date: March 2024
+Contact: Elbert Mai <code@elbertmai.com>
+Description:
+ Binary file containing the cached binary device object store (BOS)
+ of the device. This consists of the BOS descriptor followed by the
+ set of device capability descriptors. All descriptors read from
+ this file are in bus-endian format. Note that the kernel will not
+ request the BOS from a device if its bcdUSB is less than 0x0201.
+
What: /sys/bus/usb/devices/usbX/idProduct
Description:
Product ID, in hexadecimal.
diff --git a/Documentation/ABI/testing/sysfs-bus-vdpa b/Documentation/ABI/testing/sysfs-bus-vdpa
index 4da53878bf..2c833b5163 100644
--- a/Documentation/ABI/testing/sysfs-bus-vdpa
+++ b/Documentation/ABI/testing/sysfs-bus-vdpa
@@ -1,6 +1,6 @@
What: /sys/bus/vdpa/drivers_autoprobe
Date: March 2020
-Contact: virtualization@lists.linux-foundation.org
+Contact: virtualization@lists.linux.dev
Description:
This file determines whether new devices are immediately bound
to a driver after the creation. It initially contains 1, which
@@ -12,7 +12,7 @@ Description:
What: /sys/bus/vdpa/driver_probe
Date: March 2020
-Contact: virtualization@lists.linux-foundation.org
+Contact: virtualization@lists.linux.dev
Description:
Writing a device name to this file will cause the kernel binds
devices to a compatible driver.
@@ -22,7 +22,7 @@ Description:
What: /sys/bus/vdpa/drivers/.../bind
Date: March 2020
-Contact: virtualization@lists.linux-foundation.org
+Contact: virtualization@lists.linux.dev
Description:
Writing a device name to this file will cause the driver to
attempt to bind to the device. This is useful for overriding
@@ -30,7 +30,7 @@ Description:
What: /sys/bus/vdpa/drivers/.../unbind
Date: March 2020
-Contact: virtualization@lists.linux-foundation.org
+Contact: virtualization@lists.linux.dev
Description:
Writing a device name to this file will cause the driver to
attempt to unbind from the device. This may be useful when
@@ -38,7 +38,7 @@ Description:
What: /sys/bus/vdpa/devices/.../driver_override
Date: November 2021
-Contact: virtualization@lists.linux-foundation.org
+Contact: virtualization@lists.linux.dev
Description:
This file allows the driver for a device to be specified.
When specified, only a driver with a name matching the value
diff --git a/Documentation/ABI/testing/sysfs-class-hwmon b/Documentation/ABI/testing/sysfs-class-hwmon
index 3dac923c9b..cfd0d0bab4 100644
--- a/Documentation/ABI/testing/sysfs-class-hwmon
+++ b/Documentation/ABI/testing/sysfs-class-hwmon
@@ -149,6 +149,15 @@ Description:
RW
+What: /sys/class/hwmon/hwmonX/inY_fault
+Description:
+ Reports a voltage hard failure (eg: shorted component)
+
+ - 1: Failed
+ - 0: Ok
+
+ RO
+
What: /sys/class/hwmon/hwmonX/cpuY_vid
Description:
CPU core reference voltage.
@@ -968,6 +977,15 @@ Description:
RW
+What: /sys/class/hwmon/hwmonX/humidityY_max_alarm
+Description:
+ Maximum humidity detection
+
+ - 0: OK
+ - 1: Maximum humidity detected
+
+ RO
+
What: /sys/class/hwmon/hwmonX/humidityY_max_hyst
Description:
Humidity hysteresis value for max limit.
@@ -987,6 +1005,15 @@ Description:
RW
+What: /sys/class/hwmon/hwmonX/humidityY_min_alarm
+Description:
+ Minimum humidity detection
+
+ - 0: OK
+ - 1: Minimum humidity detected
+
+ RO
+
What: /sys/class/hwmon/hwmonX/humidityY_min_hyst
Description:
Humidity hysteresis value for min limit.
diff --git a/Documentation/ABI/testing/sysfs-class-led-trigger-netdev b/Documentation/ABI/testing/sysfs-class-led-trigger-netdev
index a6c307c4be..ed46b37ab8 100644
--- a/Documentation/ABI/testing/sysfs-class-led-trigger-netdev
+++ b/Documentation/ABI/testing/sysfs-class-led-trigger-netdev
@@ -88,6 +88,8 @@ Description:
speed of 10MBps of the named network device.
Setting this value also immediately changes the LED state.
+ Present only if the named network device supports 10Mbps link speed.
+
What: /sys/class/leds/<led>/link_100
Date: Jun 2023
KernelVersion: 6.5
@@ -101,6 +103,8 @@ Description:
speed of 100Mbps of the named network device.
Setting this value also immediately changes the LED state.
+ Present only if the named network device supports 100Mbps link speed.
+
What: /sys/class/leds/<led>/link_1000
Date: Jun 2023
KernelVersion: 6.5
@@ -114,6 +118,8 @@ Description:
speed of 1000Mbps of the named network device.
Setting this value also immediately changes the LED state.
+ Present only if the named network device supports 1000Mbps link speed.
+
What: /sys/class/leds/<led>/link_2500
Date: Nov 2023
KernelVersion: 6.8
@@ -127,6 +133,8 @@ Description:
speed of 2500Mbps of the named network device.
Setting this value also immediately changes the LED state.
+ Present only if the named network device supports 2500Mbps link speed.
+
What: /sys/class/leds/<led>/link_5000
Date: Nov 2023
KernelVersion: 6.8
@@ -140,6 +148,8 @@ Description:
speed of 5000Mbps of the named network device.
Setting this value also immediately changes the LED state.
+ Present only if the named network device supports 5000Mbps link speed.
+
What: /sys/class/leds/<led>/link_10000
Date: Nov 2023
KernelVersion: 6.8
@@ -153,6 +163,8 @@ Description:
speed of 10000Mbps of the named network device.
Setting this value also immediately changes the LED state.
+ Present only if the named network device supports 10000Mbps link speed.
+
What: /sys/class/leds/<led>/half_duplex
Date: Jun 2023
KernelVersion: 6.5
diff --git a/Documentation/ABI/testing/sysfs-class-led-trigger-tty b/Documentation/ABI/testing/sysfs-class-led-trigger-tty
index 30cef9ac0f..308fbc3627 100644
--- a/Documentation/ABI/testing/sysfs-class-led-trigger-tty
+++ b/Documentation/ABI/testing/sysfs-class-led-trigger-tty
@@ -1,11 +1,11 @@
-What: /sys/class/leds/<led>/ttyname
+What: /sys/class/leds/<tty_led>/ttyname
Date: Dec 2020
KernelVersion: 5.10
Contact: linux-leds@vger.kernel.org
Description:
Specifies the tty device name of the triggering tty
-What: /sys/class/leds/<led>/rx
+What: /sys/class/leds/<tty_led>/rx
Date: February 2024
KernelVersion: 6.8
Description:
@@ -13,7 +13,7 @@ Description:
If set to 0, the LED will not blink on reception.
If set to 1 (default), the LED will blink on reception.
-What: /sys/class/leds/<led>/tx
+What: /sys/class/leds/<tty_led>/tx
Date: February 2024
KernelVersion: 6.8
Description:
@@ -21,7 +21,7 @@ Description:
If set to 0, the LED will not blink on transmission.
If set to 1 (default), the LED will blink on transmission.
-What: /sys/class/leds/<led>/cts
+What: /sys/class/leds/<tty_led>/cts
Date: February 2024
KernelVersion: 6.8
Description:
@@ -31,7 +31,7 @@ Description:
If set to 0 (default), the LED will not evaluate CTS.
If set to 1, the LED will evaluate CTS.
-What: /sys/class/leds/<led>/dsr
+What: /sys/class/leds/<tty_led>/dsr
Date: February 2024
KernelVersion: 6.8
Description:
@@ -41,7 +41,7 @@ Description:
If set to 0 (default), the LED will not evaluate DSR.
If set to 1, the LED will evaluate DSR.
-What: /sys/class/leds/<led>/dcd
+What: /sys/class/leds/<tty_led>/dcd
Date: February 2024
KernelVersion: 6.8
Description:
@@ -51,7 +51,7 @@ Description:
If set to 0 (default), the LED will not evaluate CAR (DCD).
If set to 1, the LED will evaluate CAR (DCD).
-What: /sys/class/leds/<led>/rng
+What: /sys/class/leds/<tty_led>/rng
Date: February 2024
KernelVersion: 6.8
Description:
diff --git a/Documentation/ABI/testing/sysfs-class-net-queues b/Documentation/ABI/testing/sysfs-class-net-queues
index 5bff64d256..84aa25e0d1 100644
--- a/Documentation/ABI/testing/sysfs-class-net-queues
+++ b/Documentation/ABI/testing/sysfs-class-net-queues
@@ -96,3 +96,26 @@ Description:
Indicates the absolute minimum limit of bytes allowed to be
queued on this network device transmit queue. Default value is
0.
+
+What: /sys/class/net/<iface>/queues/tx-<queue>/byte_queue_limits/stall_thrs
+Date: Jan 2024
+KernelVersion: 6.9
+Contact: netdev@vger.kernel.org
+Description:
+ Tx completion stall detection threshold in ms. Kernel will
+ guarantee to detect all stalls longer than this threshold but
+ may also detect stalls longer than half of the threshold.
+
+What: /sys/class/net/<iface>/queues/tx-<queue>/byte_queue_limits/stall_cnt
+Date: Jan 2024
+KernelVersion: 6.9
+Contact: netdev@vger.kernel.org
+Description:
+ Number of detected Tx completion stalls.
+
+What: /sys/class/net/<iface>/queues/tx-<queue>/byte_queue_limits/stall_max
+Date: Jan 2024
+KernelVersion: 6.9
+Contact: netdev@vger.kernel.org
+Description:
+ Longest detected Tx completion stall. Write 0 to clear.
diff --git a/Documentation/ABI/testing/sysfs-class-usb_role b/Documentation/ABI/testing/sysfs-class-usb_role
index 3b810a425a..9fab3f0667 100644
--- a/Documentation/ABI/testing/sysfs-class-usb_role
+++ b/Documentation/ABI/testing/sysfs-class-usb_role
@@ -19,3 +19,9 @@ Description:
- none
- host
- device
+
+What: /sys/class/usb_role/<switch>/connector
+Date: Feb 2024
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ Optional symlink to the USB Type-C connector.
diff --git a/Documentation/ABI/testing/sysfs-driver-qat b/Documentation/ABI/testing/sysfs-driver-qat
index bbf329cf0d..96020fb051 100644
--- a/Documentation/ABI/testing/sysfs-driver-qat
+++ b/Documentation/ABI/testing/sysfs-driver-qat
@@ -141,3 +141,23 @@ Description:
64
This attribute is only available for qat_4xxx devices.
+
+What: /sys/bus/pci/devices/<BDF>/qat/auto_reset
+Date: March 2024
+KernelVersion: 6.8
+Contact: qat-linux@intel.com
+Description: (RW) Reports the current state of the autoreset feature
+ for a QAT device
+
+ Write to the attribute to enable or disable device auto reset.
+
+ Device auto reset is disabled by default.
+
+ The values are:
+
+ * 1/Yy/on: auto reset enabled. If the device encounters an
+ unrecoverable error, it will be reset automatically.
+ * 0/Nn/off: auto reset disabled. If the device encounters an
+ unrecoverable error, it will not be reset.
+
+ This attribute is only available for qat_4xxx devices.
diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs
index 99fa87a439..1a4d839533 100644
--- a/Documentation/ABI/testing/sysfs-fs-f2fs
+++ b/Documentation/ABI/testing/sysfs-fs-f2fs
@@ -205,7 +205,7 @@ Description: Controls the idle timing of system, if there is no FS operation
What: /sys/fs/f2fs/<disk>/discard_idle_interval
Date: September 2018
Contact: "Chao Yu" <yuchao0@huawei.com>
-Contact: "Sahitya Tummala" <stummala@codeaurora.org>
+Contact: "Sahitya Tummala" <quic_stummala@quicinc.com>
Description: Controls the idle timing of discard thread given
this time interval.
Default is 5 secs.
@@ -213,7 +213,7 @@ Description: Controls the idle timing of discard thread given
What: /sys/fs/f2fs/<disk>/gc_idle_interval
Date: September 2018
Contact: "Chao Yu" <yuchao0@huawei.com>
-Contact: "Sahitya Tummala" <stummala@codeaurora.org>
+Contact: "Sahitya Tummala" <quic_stummala@quicinc.com>
Description: Controls the idle timing for gc path. Set to 5 seconds by default.
What: /sys/fs/f2fs/<disk>/iostat_enable
@@ -701,29 +701,31 @@ Description: Support configuring fault injection type, should be
enabled with fault_injection option, fault type value
is shown below, it supports single or combined type.
- =================== ===========
- Type_Name Type_Value
- =================== ===========
- FAULT_KMALLOC 0x000000001
- FAULT_KVMALLOC 0x000000002
- FAULT_PAGE_ALLOC 0x000000004
- FAULT_PAGE_GET 0x000000008
- FAULT_ALLOC_BIO 0x000000010 (obsolete)
- FAULT_ALLOC_NID 0x000000020
- FAULT_ORPHAN 0x000000040
- FAULT_BLOCK 0x000000080
- FAULT_DIR_DEPTH 0x000000100
- FAULT_EVICT_INODE 0x000000200
- FAULT_TRUNCATE 0x000000400
- FAULT_READ_IO 0x000000800
- FAULT_CHECKPOINT 0x000001000
- FAULT_DISCARD 0x000002000
- FAULT_WRITE_IO 0x000004000
- FAULT_SLAB_ALLOC 0x000008000
- FAULT_DQUOT_INIT 0x000010000
- FAULT_LOCK_OP 0x000020000
- FAULT_BLKADDR 0x000040000
- =================== ===========
+ =========================== ===========
+ Type_Name Type_Value
+ =========================== ===========
+ FAULT_KMALLOC 0x000000001
+ FAULT_KVMALLOC 0x000000002
+ FAULT_PAGE_ALLOC 0x000000004
+ FAULT_PAGE_GET 0x000000008
+ FAULT_ALLOC_BIO 0x000000010 (obsolete)
+ FAULT_ALLOC_NID 0x000000020
+ FAULT_ORPHAN 0x000000040
+ FAULT_BLOCK 0x000000080
+ FAULT_DIR_DEPTH 0x000000100
+ FAULT_EVICT_INODE 0x000000200
+ FAULT_TRUNCATE 0x000000400
+ FAULT_READ_IO 0x000000800
+ FAULT_CHECKPOINT 0x000001000
+ FAULT_DISCARD 0x000002000
+ FAULT_WRITE_IO 0x000004000
+ FAULT_SLAB_ALLOC 0x000008000
+ FAULT_DQUOT_INIT 0x000010000
+ FAULT_LOCK_OP 0x000020000
+ FAULT_BLKADDR_VALIDITY 0x000040000
+ FAULT_BLKADDR_CONSISTENCE 0x000080000
+ FAULT_NO_SEGMENT 0x000100000
+ =========================== ===========
What: /sys/fs/f2fs/<disk>/discard_io_aware_gran
Date: January 2023
diff --git a/Documentation/ABI/testing/sysfs-fs-virtiofs b/Documentation/ABI/testing/sysfs-fs-virtiofs
new file mode 100644
index 0000000000..4839dbce99
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-fs-virtiofs
@@ -0,0 +1,11 @@
+What: /sys/fs/virtiofs/<n>/tag
+Date: Feb 2024
+Contact: virtio-fs@lists.linux.dev
+Description:
+ [RO] The mount "tag" that can be used to mount this filesystem.
+
+What: /sys/fs/virtiofs/<n>/device
+Date: Feb 2024
+Contact: virtio-fs@lists.linux.dev
+Description:
+ Symlink to the virtio device that exports this filesystem.
diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-cma b/Documentation/ABI/testing/sysfs-kernel-mm-cma
index 02b2bb60c2..dfd7552011 100644
--- a/Documentation/ABI/testing/sysfs-kernel-mm-cma
+++ b/Documentation/ABI/testing/sysfs-kernel-mm-cma
@@ -23,3 +23,9 @@ Date: Feb 2021
Contact: Minchan Kim <minchan@kernel.org>
Description:
the number of pages CMA API failed to allocate
+
+What: /sys/kernel/mm/cma/<cma-heap-name>/release_pages_success
+Date: Feb 2024
+Contact: Anshuman Khandual <anshuman.khandual@arm.com>
+Description:
+ the number of pages CMA API succeeded to release
diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-damon b/Documentation/ABI/testing/sysfs-kernel-mm-damon
index bfa5b8288d..dad4d5ffd7 100644
--- a/Documentation/ABI/testing/sysfs-kernel-mm-damon
+++ b/Documentation/ABI/testing/sysfs-kernel-mm-damon
@@ -34,7 +34,9 @@ Description: Writing 'on' or 'off' to this file makes the kdamond starts or
kdamond. Writing 'update_schemes_tried_bytes' to the file
updates only '.../tried_regions/total_bytes' files of this
kdamond. Writing 'clear_schemes_tried_regions' to the file
- removes contents of the 'tried_regions' directory.
+ removes contents of the 'tried_regions' directory. Writing
+ 'update_schemes_effective_quotas' to the file updates
+ '.../quotas/effective_bytes' files of this kdamond.
What: /sys/kernel/mm/damon/admin/kdamonds/<K>/pid
Date: Mar 2022
@@ -208,6 +210,12 @@ Contact: SeongJae Park <sj@kernel.org>
Description: Writing to and reading from this file sets and gets the size
quota of the scheme in bytes.
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/effective_bytes
+Date: Feb 2024
+Contact: SeongJae Park <sj@kernel.org>
+Description: Reading from this file gets the effective size quota of the
+ scheme in bytes, which adjusted for the time quota and goals.
+
What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/reset_interval_ms
Date: Mar 2022
Contact: SeongJae Park <sj@kernel.org>
@@ -221,6 +229,12 @@ Description: Writing a number 'N' to this file creates the number of
directories for setting automatic tuning of the scheme's
aggressiveness named '0' to 'N-1' under the goals/ directory.
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/goals/<G>/target_metric
+Date: Feb 2024
+Contact: SeongJae Park <sj@kernel.org>
+Description: Writing to and reading from this file sets and gets the quota
+ auto-tuning goal metric.
+
What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/goals/<G>/target_value
Date: Nov 2023
Contact: SeongJae Park <sj@kernel.org>
diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-mempolicy b/Documentation/ABI/testing/sysfs-kernel-mm-mempolicy
new file mode 100644
index 0000000000..8ac327fd7f
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-kernel-mm-mempolicy
@@ -0,0 +1,4 @@
+What: /sys/kernel/mm/mempolicy/
+Date: January 2024
+Contact: Linux memory management mailing list <linux-mm@kvack.org>
+Description: Interface for Mempolicy
diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-mempolicy-weighted-interleave b/Documentation/ABI/testing/sysfs-kernel-mm-mempolicy-weighted-interleave
new file mode 100644
index 0000000000..0b7972de04
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-kernel-mm-mempolicy-weighted-interleave
@@ -0,0 +1,25 @@
+What: /sys/kernel/mm/mempolicy/weighted_interleave/
+Date: January 2024
+Contact: Linux memory management mailing list <linux-mm@kvack.org>
+Description: Configuration Interface for the Weighted Interleave policy
+
+What: /sys/kernel/mm/mempolicy/weighted_interleave/nodeN
+Date: January 2024
+Contact: Linux memory management mailing list <linux-mm@kvack.org>
+Description: Weight configuration interface for nodeN
+
+ The interleave weight for a memory node (N). These weights are
+ utilized by tasks which have set their mempolicy to
+ MPOL_WEIGHTED_INTERLEAVE.
+
+ These weights only affect new allocations, and changes at runtime
+ will not cause migrations on already allocated pages.
+
+ The minimum weight for a node is always 1.
+
+ Minimum weight: 1
+ Maximum weight: 255
+
+ Writing an empty string or `0` will reset the weight to the
+ system default. The system default may be set by the kernel
+ or drivers at boot or during hotplug events.