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-rw-r--r--Documentation/ABI/testing/configfs-usb-gadget-uac110
-rw-r--r--Documentation/ABI/testing/configfs-usb-gadget-uac210
-rw-r--r--Documentation/ABI/testing/sysfs-block12
-rw-r--r--Documentation/ABI/testing/sysfs-block-device43
-rw-r--r--Documentation/ABI/testing/sysfs-bus-event_source-devices-uncore13
-rw-r--r--Documentation/ABI/testing/sysfs-bus-iio-chemical-sgp4031
-rw-r--r--Documentation/ABI/testing/sysfs-bus-platform14
-rw-r--r--Documentation/ABI/testing/sysfs-devices-system-cpu26
-rw-r--r--Documentation/ABI/testing/sysfs-driver-ge-achc15
-rw-r--r--Documentation/ABI/testing/sysfs-kernel-dmabuf-buffers24
-rw-r--r--Documentation/ABI/testing/sysfs-platform-dptf40
-rw-r--r--Documentation/ABI/testing/sysfs-platform_profile7
12 files changed, 242 insertions, 3 deletions
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-uac1 b/Documentation/ABI/testing/configfs-usb-gadget-uac1
index dc23fd776943..dd647d44d975 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget-uac1
+++ b/Documentation/ABI/testing/configfs-usb-gadget-uac1
@@ -8,9 +8,19 @@ Description:
c_chmask capture channel mask
c_srate capture sampling rate
c_ssize capture sample size (bytes)
+ c_mute_present capture mute control enable
+ c_volume_present capture volume control enable
+ c_volume_min capture volume control min value (in 1/256 dB)
+ c_volume_max capture volume control max value (in 1/256 dB)
+ c_volume_res capture volume control resolution (in 1/256 dB)
p_chmask playback channel mask
p_srate playback sampling rate
p_ssize playback sample size (bytes)
+ p_mute_present playback mute control enable
+ p_volume_present playback volume control enable
+ p_volume_min playback volume control min value (in 1/256 dB)
+ p_volume_max playback volume control max value (in 1/256 dB)
+ p_volume_res playback volume control resolution (in 1/256 dB)
req_number the number of pre-allocated request
for both capture and playback
========== ===================================
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-uac2 b/Documentation/ABI/testing/configfs-usb-gadget-uac2
index 26fb8e9b4e61..cfd160ff8b56 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget-uac2
+++ b/Documentation/ABI/testing/configfs-usb-gadget-uac2
@@ -9,8 +9,18 @@ Description:
c_srate capture sampling rate
c_ssize capture sample size (bytes)
c_sync capture synchronization type (async/adaptive)
+ c_mute_present capture mute control enable
+ c_volume_present capture volume control enable
+ c_volume_min capture volume control min value (in 1/256 dB)
+ c_volume_max capture volume control max value (in 1/256 dB)
+ c_volume_res capture volume control resolution (in 1/256 dB)
fb_max maximum extra bandwidth in async mode
p_chmask playback channel mask
p_srate playback sampling rate
p_ssize playback sample size (bytes)
+ p_mute_present playback mute control enable
+ p_volume_present playback volume control enable
+ p_volume_min playback volume control min value (in 1/256 dB)
+ p_volume_max playback volume control max value (in 1/256 dB)
+ p_volume_res playback volume control resolution (in 1/256 dB)
========= ============================
diff --git a/Documentation/ABI/testing/sysfs-block b/Documentation/ABI/testing/sysfs-block
index e34cdeeeb9d4..a0ed87386639 100644
--- a/Documentation/ABI/testing/sysfs-block
+++ b/Documentation/ABI/testing/sysfs-block
@@ -28,6 +28,18 @@ Description:
For more details refer Documentation/admin-guide/iostats.rst
+What: /sys/block/<disk>/diskseq
+Date: February 2021
+Contact: Matteo Croce <mcroce@microsoft.com>
+Description:
+ The /sys/block/<disk>/diskseq files reports the disk
+ sequence number, which is a monotonically increasing
+ number assigned to every drive.
+ Some devices, like the loop device, refresh such number
+ every time the backing file is changed.
+ The value type is 64 bit unsigned.
+
+
What: /sys/block/<disk>/<part>/stat
Date: February 2008
Contact: Jerome Marchand <jmarchan@redhat.com>
diff --git a/Documentation/ABI/testing/sysfs-block-device b/Documentation/ABI/testing/sysfs-block-device
index aa0fb500e3c9..7ac7b19b2f72 100644
--- a/Documentation/ABI/testing/sysfs-block-device
+++ b/Documentation/ABI/testing/sysfs-block-device
@@ -55,6 +55,43 @@ Date: Oct, 2016
KernelVersion: v4.10
Contact: linux-ide@vger.kernel.org
Description:
- (RW) Write to the file to turn on or off the SATA ncq (native
- command queueing) support. By default this feature is turned
- off.
+ (RW) Write to the file to turn on or off the SATA NCQ (native
+ command queueing) priority support. By default this feature is
+ turned off. If the device does not support the SATA NCQ
+ priority feature, writing "1" to this file results in an error
+ (see ncq_prio_supported).
+
+
+What: /sys/block/*/device/sas_ncq_prio_enable
+Date: Oct, 2016
+KernelVersion: v4.10
+Contact: linux-ide@vger.kernel.org
+Description:
+ (RW) This is the equivalent of the ncq_prio_enable attribute
+ file for SATA devices connected to a SAS host-bus-adapter
+ (HBA) implementing support for the SATA NCQ priority feature.
+ This file does not exist if the HBA driver does not implement
+ support for the SATA NCQ priority feature, regardless of the
+ device support for this feature (see sas_ncq_prio_supported).
+
+
+What: /sys/block/*/device/ncq_prio_supported
+Date: Aug, 2021
+KernelVersion: v5.15
+Contact: linux-ide@vger.kernel.org
+Description:
+ (RO) Indicates if the device supports the SATA NCQ (native
+ command queueing) priority feature.
+
+
+What: /sys/block/*/device/sas_ncq_prio_supported
+Date: Aug, 2021
+KernelVersion: v5.15
+Contact: linux-ide@vger.kernel.org
+Description:
+ (RO) This is the equivalent of the ncq_prio_supported attribute
+ file for SATA devices connected to a SAS host-bus-adapter
+ (HBA) implementing support for the SATA NCQ priority feature.
+ This file does not exist if the HBA driver does not implement
+ support for the SATA NCQ priority feature, regardless of the
+ device support for this feature.
diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-uncore b/Documentation/ABI/testing/sysfs-bus-event_source-devices-uncore
new file mode 100644
index 000000000000..b56e8f019fd4
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-uncore
@@ -0,0 +1,13 @@
+What: /sys/bus/event_source/devices/uncore_*/alias
+Date: June 2021
+KernelVersion: 5.15
+Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
+Description: Read-only. An attribute to describe the alias name of
+ the uncore PMU if an alias exists on some platforms.
+ The 'perf(1)' tool should treat both names the same.
+ They both can be used to access the uncore PMU.
+
+ Example:
+
+ $ cat /sys/devices/uncore_cha_2/alias
+ uncore_type_0_2
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-chemical-sgp40 b/Documentation/ABI/testing/sysfs-bus-iio-chemical-sgp40
new file mode 100644
index 000000000000..469a7c00fad4
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-chemical-sgp40
@@ -0,0 +1,31 @@
+What: /sys/bus/iio/devices/iio:deviceX/out_temp_raw
+Date: August 2021
+KernelVersion: 5.15
+Contact: Andreas Klinger <ak@it-klinger.de>
+Description:
+ Set the temperature. This value is sent to the sensor for
+ temperature compensation.
+ Default value: 25000 (25 °C)
+
+What: /sys/bus/iio/devices/iio:deviceX/out_humidityrelative_raw
+Date: August 2021
+KernelVersion: 5.15
+Contact: Andreas Klinger <ak@it-klinger.de>
+Description:
+ Set the relative humidity. This value is sent to the sensor for
+ humidity compensation.
+ Default value: 50000 (50 % relative humidity)
+
+What: /sys/bus/iio/devices/iio:deviceX/in_resistance_calibbias
+Date: August 2021
+KernelVersion: 5.15
+Contact: Andreas Klinger <ak@it-klinger.de>
+Description:
+ Set the bias value for the resistance which is used for
+ calculation of in_concentration_input as follows:
+
+ x = (in_resistance_raw - in_resistance_calibbias) * 0.65
+
+ in_concentration_input = 500 / (1 + e^x)
+
+ Default value: 30000
diff --git a/Documentation/ABI/testing/sysfs-bus-platform b/Documentation/ABI/testing/sysfs-bus-platform
index 194ca700e962..ff30728595ef 100644
--- a/Documentation/ABI/testing/sysfs-bus-platform
+++ b/Documentation/ABI/testing/sysfs-bus-platform
@@ -28,3 +28,17 @@ Description:
value comes from an ACPI _PXM method or a similar firmware
source. Initial users for this file would be devices like
arm smmu which are populated by arm64 acpi_iort.
+
+What: /sys/bus/platform/devices/.../msi_irqs/
+Date: August 2021
+Contact: Barry Song <song.bao.hua@hisilicon.com>
+Description:
+ The /sys/devices/.../msi_irqs directory contains a variable set
+ of files, with each file being named after a corresponding msi
+ irq vector allocated to that device.
+
+What: /sys/bus/platform/devices/.../msi_irqs/<N>
+Date: August 2021
+Contact: Barry Song <song.bao.hua@hisilicon.com>
+Description:
+ This attribute will show "msi" if <N> is a valid msi irq
diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu
index 160b10c029c0..b46ef147616a 100644
--- a/Documentation/ABI/testing/sysfs-devices-system-cpu
+++ b/Documentation/ABI/testing/sysfs-devices-system-cpu
@@ -494,6 +494,15 @@ Description: AArch64 CPU registers
'identification' directory exposes the CPU ID registers for
identifying model and revision of the CPU.
+What: /sys/devices/system/cpu/aarch32_el0
+Date: May 2021
+Contact: Linux ARM Kernel Mailing list <linux-arm-kernel@lists.infradead.org>
+Description: Identifies the subset of CPUs in the system that can execute
+ AArch32 (32-bit ARM) applications. If present, the same format as
+ /sys/devices/system/cpu/{offline,online,possible,present} is used.
+ If absent, then all or none of the CPUs can execute AArch32
+ applications and execve() will behave accordingly.
+
What: /sys/devices/system/cpu/cpu#/cpu_capacity
Date: December 2016
Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
@@ -640,3 +649,20 @@ Description: SPURR ticks for cpuX when it was idle.
This sysfs interface exposes the number of SPURR ticks
for cpuX when it was idle.
+
+What: /sys/devices/system/cpu/cpuX/mte_tcf_preferred
+Date: July 2021
+Contact: Linux ARM Kernel Mailing list <linux-arm-kernel@lists.infradead.org>
+Description: Preferred MTE tag checking mode
+
+ When a user program specifies more than one MTE tag checking
+ mode, this sysfs node is used to specify which mode should
+ be preferred when scheduling a task on that CPU. Possible
+ values:
+
+ ================ ==============================================
+ "sync" Prefer synchronous mode
+ "async" Prefer asynchronous mode
+ ================ ==============================================
+
+ See also: Documentation/arm64/memory-tagging-extension.rst
diff --git a/Documentation/ABI/testing/sysfs-driver-ge-achc b/Documentation/ABI/testing/sysfs-driver-ge-achc
new file mode 100644
index 000000000000..a9e7a079190c
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-ge-achc
@@ -0,0 +1,15 @@
+What: /sys/bus/spi/<dev>/update_firmware
+Date: Jul 2021
+Contact: sebastian.reichel@collabora.com
+Description: Write 1 to this file to update the ACHC microcontroller
+ firmware via the EzPort interface. For this the kernel
+ will load "achc.bin" via the firmware API (so usually
+ from /lib/firmware). The write will block until the FW
+ has either been flashed successfully or an error occured.
+
+What: /sys/bus/spi/<dev>/reset
+Date: Jul 2021
+Contact: sebastian.reichel@collabora.com
+Description: This file represents the microcontroller's reset line.
+ 1 means the reset line is asserted, 0 means it's not
+ asserted. The file is read and writable.
diff --git a/Documentation/ABI/testing/sysfs-kernel-dmabuf-buffers b/Documentation/ABI/testing/sysfs-kernel-dmabuf-buffers
new file mode 100644
index 000000000000..5d3bc997dc64
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-kernel-dmabuf-buffers
@@ -0,0 +1,24 @@
+What: /sys/kernel/dmabuf/buffers
+Date: May 2021
+KernelVersion: v5.13
+Contact: Hridya Valsaraju <hridya@google.com>
+Description: The /sys/kernel/dmabuf/buffers directory contains a
+ snapshot of the internal state of every DMA-BUF.
+ /sys/kernel/dmabuf/buffers/<inode_number> will contain the
+ statistics for the DMA-BUF with the unique inode number
+ <inode_number>
+Users: kernel memory tuning/debugging tools
+
+What: /sys/kernel/dmabuf/buffers/<inode_number>/exporter_name
+Date: May 2021
+KernelVersion: v5.13
+Contact: Hridya Valsaraju <hridya@google.com>
+Description: This file is read-only and contains the name of the exporter of
+ the DMA-BUF.
+
+What: /sys/kernel/dmabuf/buffers/<inode_number>/size
+Date: May 2021
+KernelVersion: v5.13
+Contact: Hridya Valsaraju <hridya@google.com>
+Description: This file is read-only and specifies the size of the DMA-BUF in
+ bytes.
diff --git a/Documentation/ABI/testing/sysfs-platform-dptf b/Documentation/ABI/testing/sysfs-platform-dptf
index 141834342a4d..53c6b1000320 100644
--- a/Documentation/ABI/testing/sysfs-platform-dptf
+++ b/Documentation/ABI/testing/sysfs-platform-dptf
@@ -111,3 +111,43 @@ Contact: linux-acpi@vger.kernel.org
Description:
(RW) The PCH FIVR (Fully Integrated Voltage Regulator) switching frequency in MHz,
when FIVR clock is 38.4MHz.
+
+What: /sys/bus/platform/devices/INTC1045:00/pch_fivr_switch_frequency/fivr_switching_freq_mhz
+Date: September, 2021
+KernelVersion: v5.15
+Contact: linux-acpi@vger.kernel.org
+Description:
+ (RO) Get the FIVR switching control frequency in MHz.
+
+What: /sys/bus/platform/devices/INTC1045:00/pch_fivr_switch_frequency/fivr_switching_fault_status
+Date: September, 2021
+KernelVersion: v5.15
+Contact: linux-acpi@vger.kernel.org
+Description:
+ (RO) Read the FIVR switching frequency control fault status.
+
+What: /sys/bus/platform/devices/INTC1045:00/pch_fivr_switch_frequency/ssc_clock_info
+Date: September, 2021
+KernelVersion: v5.15
+Contact: linux-acpi@vger.kernel.org
+Description:
+ (RO) Presents SSC (spread spectrum clock) information for EMI
+ (Electro magnetic interference) control. This is a bit mask.
+ Bits Description
+ [7:0] Sets clock spectrum spread percentage:
+ 0x00=0.2% , 0x3F=10%
+ 1 LSB = 0.1% increase in spread (for
+ settings 0x01 thru 0x1C)
+ 1 LSB = 0.2% increase in spread (for
+ settings 0x1E thru 0x3F)
+ [8] When set to 1, enables spread
+ spectrum clock
+ [9] 0: Triangle mode. FFC frequency
+ walks around the Fcenter in a linear
+ fashion
+ 1: Random walk mode. FFC frequency
+ changes randomly within the SSC
+ (Spread spectrum clock) range
+ [10] 0: No white noise. 1: Add white noise
+ to spread waveform
+ [11] When 1, future writes are ignored.
diff --git a/Documentation/ABI/testing/sysfs-platform_profile b/Documentation/ABI/testing/sysfs-platform_profile
index dae9c8941905..baf1d125f9f8 100644
--- a/Documentation/ABI/testing/sysfs-platform_profile
+++ b/Documentation/ABI/testing/sysfs-platform_profile
@@ -26,3 +26,10 @@ Contact: Hans de Goede <hdegoede@redhat.com>
Description: Reading this file gives the current selected profile for this
device. Writing this file with one of the strings from
platform_profile_choices changes the profile to the new value.
+
+ This file can be monitored for changes by polling for POLLPRI,
+ POLLPRI will be signalled on any changes, independent of those
+ changes coming from a userspace write; or coming from another
+ source such as e.g. a hotkey triggered profile change handled
+ either directly by the embedded-controller or fully handled
+ inside the kernel.
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-03 18:52:37 +0100