Commit 441d7f18 authored by Lorenzo "Palinuro" Faletra's avatar Lorenzo "Palinuro" Faletra
Browse files

Import Upstream version 4.18.6

parent 591effbd
......@@ -186,6 +186,9 @@ Uwe Kleine-König <ukleinek@informatik.uni-freiburg.de>
Uwe Kleine-König <ukl@pengutronix.de>
Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com>
Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Vinod Koul <vkoul@kernel.org> <vinod.koul@intel.com>
Vinod Koul <vkoul@kernel.org> <vinod.koul@linux.intel.com>
Vinod Koul <vkoul@kernel.org> <vkoul@infradead.org>
Viresh Kumar <vireshk@kernel.org> <viresh.kumar@st.com>
Viresh Kumar <vireshk@kernel.org> <viresh.linux@gmail.com>
Viresh Kumar <vireshk@kernel.org> <viresh.kumar2@arm.com>
......
......@@ -64,8 +64,6 @@ auxdisplay/
- misc. LCD driver documentation (cfag12864b, ks0108).
backlight/
- directory with info on controlling backlights in flat panel displays
bcache.txt
- Block-layer cache on fast SSDs to improve slow (raid) I/O performance.
block/
- info on the Block I/O (BIO) layer.
blockdev/
......@@ -78,18 +76,10 @@ bus-devices/
- directory with info on TI GPMC (General Purpose Memory Controller)
bus-virt-phys-mapping.txt
- how to access I/O mapped memory from within device drivers.
cachetlb.txt
- describes the cache/TLB flushing interfaces Linux uses.
cdrom/
- directory with information on the CD-ROM drivers that Linux has.
cgroup-v1/
- cgroups v1 features, including cpusets and memory controller.
cgroup-v2.txt
- cgroups v2 features, including cpusets and memory controller.
circular-buffers.txt
- how to make use of the existing circular buffer infrastructure
clk.txt
- info on the common clock framework
cma/
- Continuous Memory Area (CMA) debugfs interface.
conf.py
......
......@@ -11,7 +11,7 @@ Description:
Kernel code may export it for complete or partial access.
GPIOs are identified as they are inside the kernel, using integers in
the range 0..INT_MAX. See Documentation/gpio/gpio.txt for more information.
the range 0..INT_MAX. See Documentation/gpio for more information.
/sys/class/gpio
/export ... asks the kernel to export a GPIO to userspace
......
What: /sys/bus/nd/devices/regionX/nfit/ecc_unit_size
Date: Aug, 2017
KernelVersion: v4.14 (Removed v4.18)
Contact: linux-nvdimm@lists.01.org
Description:
(RO) Size of a write request to a DIMM that will not incur a
read-modify-write cycle at the memory controller.
When the nfit driver initializes it runs an ARS (Address Range
Scrub) operation across every pmem range. Part of that process
involves determining the ARS capabilities of a given address
range. One of the capabilities that is reported is the 'Clear
Uncorrectable Error Range Length Unit Size' (see: ACPI 6.2
section 9.20.7.4 Function Index 1 - Query ARS Capabilities).
This property indicates the boundary at which the NVDIMM may
need to perform read-modify-write cycles to maintain ECC (Error
Correcting Code) blocks.
......@@ -90,4 +90,4 @@ Date: December 2009
Contact: Lee Schermerhorn <lee.schermerhorn@hp.com>
Description:
The node's huge page size control/query attributes.
See Documentation/vm/hugetlbpage.txt
\ No newline at end of file
See Documentation/admin-guide/mm/hugetlbpage.rst
\ No newline at end of file
......@@ -57,3 +57,16 @@ Description:
dracut (via 97masterkey and 98integrity) and systemd (via
core/ima-setup) have support for loading keys at boot
time.
What: security/integrity/evm/evm_xattrs
Date: April 2018
Contact: Matthew Garrett <mjg59@google.com>
Description:
Shows the set of extended attributes used to calculate or
validate the EVM signature, and allows additional attributes
to be added at runtime. Any signatures generated after
additional attributes are added (and on files posessing those
additional attributes) will only be valid if the same
additional attributes are configured on system boot. Writing
a single period (.) will lock the xattr list from any further
modification.
......@@ -21,7 +21,7 @@ Description:
audit | hash | dont_hash
condition:= base | lsm [option]
base: [[func=] [mask=] [fsmagic=] [fsuuid=] [uid=]
[euid=] [fowner=]]
[euid=] [fowner=] [fsname=]]
lsm: [[subj_user=] [subj_role=] [subj_type=]
[obj_user=] [obj_role=] [obj_type=]]
option: [[appraise_type=]] [permit_directio]
......
......@@ -190,6 +190,13 @@ Description:
but should match other such assignments on device).
Units after application of scale and offset are m/s^2.
What: /sys/bus/iio/devices/iio:deviceX/in_angl_raw
KernelVersion: 4.17
Contact: linux-iio@vger.kernel.org
Description:
Angle of rotation. Units after application of scale and offset
are radians.
What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_raw
What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_raw
What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_raw
......@@ -297,6 +304,7 @@ What: /sys/bus/iio/devices/iio:deviceX/in_pressure_offset
What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_offset
What: /sys/bus/iio/devices/iio:deviceX/in_magn_offset
What: /sys/bus/iio/devices/iio:deviceX/in_rot_offset
What: /sys/bus/iio/devices/iio:deviceX/in_angl_offset
KernelVersion: 2.6.35
Contact: linux-iio@vger.kernel.org
Description:
......@@ -350,6 +358,7 @@ What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_scale
What: /sys/bus/iio/devices/iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_scale
What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_scale
What: /sys/bus/iio/devices/iio:deviceX/in_countY_scale
What: /sys/bus/iio/devices/iio:deviceX/in_angl_scale
KernelVersion: 2.6.35
Contact: linux-iio@vger.kernel.org
Description:
......
......@@ -212,22 +212,3 @@ Description:
range. Used by NVDIMM Region Mapping Structure to uniquely refer
to this structure. Value of 0 is reserved and not used as an
index.
What: /sys/bus/nd/devices/regionX/nfit/ecc_unit_size
Date: Aug, 2017
KernelVersion: v4.14
Contact: linux-nvdimm@lists.01.org
Description:
(RO) Size of a write request to a DIMM that will not incur a
read-modify-write cycle at the memory controller.
When the nfit driver initializes it runs an ARS (Address Range
Scrub) operation across every pmem range. Part of that process
involves determining the ARS capabilities of a given address
range. One of the capabilities that is reported is the 'Clear
Uncorrectable Error Range Length Unit Size' (see: ACPI 6.2
section 9.20.7.4 Function Index 1 - Query ARS Capabilities).
This property indicates the boundary at which the NVDIMM may
need to perform read-modify-write cycles to maintain ECC (Error
Correcting Code) blocks.
......@@ -73,3 +73,23 @@ Description:
This sysfs entry tells us whether the channel is a local
server channel that is announced (values are either
true or false).
What: /sys/bus/rpmsg/devices/.../driver_override
Date: April 2018
KernelVersion: 4.18
Contact: Bjorn Andersson <bjorn.andersson@linaro.org>
Description:
Every rpmsg device is a communication channel with a remote
processor. Channels are identified by a textual name (see
/sys/bus/rpmsg/devices/.../name above) and have a local
("source") rpmsg address, and remote ("destination") rpmsg
address.
The listening entity (or client) which communicates with a
remote processor is referred as rpmsg driver. The rpmsg device
and rpmsg driver are matched based on rpmsg device name and
rpmsg driver ID table.
This sysfs entry allows the rpmsg driver for a rpmsg device
to be specified which will override standard OF, ID table
and name matching.
......@@ -189,6 +189,28 @@ Description:
The file will read "hotplug", "wired" and "not used" if the
information is available, and "unknown" otherwise.
What: /sys/bus/usb/devices/.../(hub interface)/portX/quirks
Date: May 2018
Contact: Nicolas Boichat <drinkcat@chromium.org>
Description:
In some cases, we care about time-to-active for devices
connected on a specific port (e.g. non-standard USB port like
pogo pins), where the device to be connected is known in
advance, and behaves well according to the specification.
This attribute is a bit-field that controls the behavior of
a specific port:
- Bit 0 of this field selects the "old" enumeration scheme,
as it is considerably faster (it only causes one USB reset
instead of 2).
The old enumeration scheme can also be selected globally
using /sys/module/usbcore/parameters/old_scheme_first, but
it is often not desirable as the new scheme was introduced to
increase compatibility with more devices.
- Bit 1 reduces TRSTRCY to the 10 ms that are required by the
USB 2.0 specification, instead of the 50 ms that are normally
used to help make enumeration work better on some high speed
devices.
What: /sys/bus/usb/devices/.../(hub interface)/portX/over_current_count
Date: February 2018
Contact: Richard Leitner <richard.leitner@skidata.com>
......@@ -236,3 +258,21 @@ Description:
Supported values are 0 - 15.
More information on how besl values map to microseconds can be found in
USB 2.0 ECN Errata for Link Power Management, section 4.10)
What: /sys/bus/usb/devices/.../rx_lanes
Date: March 2018
Contact: Mathias Nyman <mathias.nyman@linux.intel.com>
Description:
Number of rx lanes the device is using.
USB 3.2 adds Dual-lane support, 2 rx and 2 tx lanes over Type-C.
Inter-Chip SSIC devices support asymmetric lanes up to 4 lanes per
direction. Devices before USB 3.2 are single lane (rx_lanes = 1)
What: /sys/bus/usb/devices/.../tx_lanes
Date: March 2018
Contact: Mathias Nyman <mathias.nyman@linux.intel.com>
Description:
Number of tx lanes the device is using.
USB 3.2 adds Dual-lane support, 2 rx and 2 tx -lanes over Type-C.
Inter-Chip SSIC devices support asymmetric lanes up to 4 lanes per
direction. Devices before USB 3.2 are single lane (tx_lanes = 1)
......@@ -232,3 +232,11 @@ Description:
of the parent (another partition or a flash device) in bytes.
This attribute is absent on flash devices, so it can be used
to distinguish them from partitions.
What: /sys/class/mtd/mtdX/oobavail
Date: April 2018
KernelVersion: 4.16
Contact: linux-mtd@lists.infradead.org
Description:
Number of bytes available for a client to place data into
the out of band area.
===== General Properties =====
What: /sys/class/power_supply/<supply_name>/manufacturer
Date: May 2007
Contact: linux-pm@vger.kernel.org
Description:
Reports the name of the device manufacturer.
Access: Read
Valid values: Represented as string
What: /sys/class/power_supply/<supply_name>/model_name
Date: May 2007
Contact: linux-pm@vger.kernel.org
Description:
Reports the name of the device model.
Access: Read
Valid values: Represented as string
What: /sys/class/power_supply/<supply_name>/serial_number
Date: January 2008
Contact: linux-pm@vger.kernel.org
Description:
Reports the serial number of the device.
Access: Read
Valid values: Represented as string
What: /sys/class/power_supply/<supply_name>/type
Date: May 2010
Contact: linux-pm@vger.kernel.org
Description:
Describes the main type of the supply.
Access: Read
Valid values: "Battery", "UPS", "Mains", "USB"
===== Battery Properties =====
What: /sys/class/power_supply/<supply_name>/capacity
Date: May 2007
Contact: linux-pm@vger.kernel.org
Description:
Fine grain representation of battery capacity.
Access: Read
Valid values: 0 - 100 (percent)
What: /sys/class/power_supply/<supply_name>/capacity_alert_max
Date: July 2012
Contact: linux-pm@vger.kernel.org
Description:
Maximum battery capacity trip-wire value where the supply will
notify user-space of the event. This is normally used for the
battery discharging scenario where user-space needs to know the
battery has dropped to an upper level so it can take
appropriate action (e.g. warning user that battery level is
low).
Access: Read, Write
Valid values: 0 - 100 (percent)
What: /sys/class/power_supply/<supply_name>/capacity_alert_min
Date: July 2012
Contact: linux-pm@vger.kernel.org
Description:
Minimum battery capacity trip-wire value where the supply will
notify user-space of the event. This is normally used for the
battery discharging scenario where user-space needs to know the
battery has dropped to a lower level so it can take
appropriate action (e.g. warning user that battery level is
critically low).
Access: Read, Write
Valid values: 0 - 100 (percent)
What: /sys/class/power_supply/<supply_name>/capacity_level
Date: June 2009
Contact: linux-pm@vger.kernel.org
Description:
Coarse representation of battery capacity.
Access: Read
Valid values: "Unknown", "Critical", "Low", "Normal", "High",
"Full"
What: /sys/class/power_supply/<supply_name>/current_avg
Date: May 2007
Contact: linux-pm@vger.kernel.org
Description:
Reports an average IBAT current reading for the battery, over a
fixed period. Normally devices will provide a fixed interval in
which they average readings to smooth out the reported value.
Access: Read
Valid values: Represented in microamps
What: /sys/class/power_supply/<supply_name>/current_max
Date: October 2010
Contact: linux-pm@vger.kernel.org
Description:
Reports the maximum IBAT current allowed into the battery.
Access: Read
Valid values: Represented in microamps
What: /sys/class/power_supply/<supply_name>/current_now
Date: May 2007
Contact: linux-pm@vger.kernel.org
Description:
Reports an instant, single IBAT current reading for the battery.
This value is not averaged/smoothed.
Access: Read
Valid values: Represented in microamps
What: /sys/class/power_supply/<supply_name>/charge_type
Date: July 2009
Contact: linux-pm@vger.kernel.org
Description:
Represents the type of charging currently being applied to the
battery.
Access: Read
Valid values: "Unknown", "N/A", "Trickle", "Fast"
What: /sys/class/power_supply/<supply_name>/charge_term_current
Date: July 2014
Contact: linux-pm@vger.kernel.org
Description:
Reports the charging current value which is used to determine
when the battery is considered full and charging should end.
Access: Read
Valid values: Represented in microamps
What: /sys/class/power_supply/<supply_name>/health
Date: May 2007
Contact: linux-pm@vger.kernel.org
Description:
Reports the health of the battery or battery side of charger
functionality.
Access: Read
Valid values: "Unknown", "Good", "Overheat", "Dead",
"Over voltage", "Unspecified failure", "Cold",
"Watchdog timer expire", "Safety timer expire"
What: /sys/class/power_supply/<supply_name>/precharge_current
Date: June 2017
Contact: linux-pm@vger.kernel.org
Description:
Reports the charging current applied during pre-charging phase
for a battery charge cycle.
Access: Read
Valid values: Represented in microamps
What: /sys/class/power_supply/<supply_name>/present
Date: May 2007
Contact: linux-pm@vger.kernel.org
Description:
Reports whether a battery is present or not in the system.
Access: Read
Valid values:
0: Absent
1: Present
What: /sys/class/power_supply/<supply_name>/status
Date: May 2007
Contact: linux-pm@vger.kernel.org
Description:
Represents the charging status of the battery. Normally this
is read-only reporting although for some supplies this can be
used to enable/disable charging to the battery.
Access: Read, Write
Valid values: "Unknown", "Charging", "Discharging",
"Not charging", "Full"
What: /sys/class/power_supply/<supply_name>/technology
Date: May 2007
Contact: linux-pm@vger.kernel.org
Description:
Describes the battery technology supported by the supply.
Access: Read
Valid values: "Unknown", "NiMH", "Li-ion", "Li-poly", "LiFe",
"NiCd", "LiMn"
What: /sys/class/power_supply/<supply_name>/temp
Date: May 2007
Contact: linux-pm@vger.kernel.org
Description:
Reports the current TBAT battery temperature reading.
Access: Read
Valid values: Represented in 1/10 Degrees Celsius
What: /sys/class/power_supply/<supply_name>/temp_alert_max
Date: July 2012
Contact: linux-pm@vger.kernel.org
Description:
Maximum TBAT temperature trip-wire value where the supply will
notify user-space of the event. This is normally used for the
battery charging scenario where user-space needs to know the
battery temperature has crossed an upper threshold so it can
take appropriate action (e.g. warning user that battery level is
critically high, and charging has stopped).
Access: Read
Valid values: Represented in 1/10 Degrees Celsius
What: /sys/class/power_supply/<supply_name>/temp_alert_min
Date: July 2012
Contact: linux-pm@vger.kernel.org
Description:
Minimum TBAT temperature trip-wire value where the supply will
notify user-space of the event. This is normally used for the
battery charging scenario where user-space needs to know the
battery temperature has crossed a lower threshold so it can take
appropriate action (e.g. warning user that battery level is
high, and charging current has been reduced accordingly to
remedy the situation).
Access: Read
Valid values: Represented in 1/10 Degrees Celsius
What: /sys/class/power_supply/<supply_name>/temp_max
Date: July 2014
Contact: linux-pm@vger.kernel.org
Description:
Reports the maximum allowed TBAT battery temperature for
charging.
Access: Read
Valid values: Represented in 1/10 Degrees Celsius
What: /sys/class/power_supply/<supply_name>/temp_min
Date: July 2014
Contact: linux-pm@vger.kernel.org
Description:
Reports the minimum allowed TBAT battery temperature for
charging.
Access: Read
Valid values: Represented in 1/10 Degrees Celsius
What: /sys/class/power_supply/<supply_name>/voltage_avg,
Date: May 2007
Contact: linux-pm@vger.kernel.org
Description:
Reports an average VBAT voltage reading for the battery, over a
fixed period. Normally devices will provide a fixed interval in
which they average readings to smooth out the reported value.
Access: Read
Valid values: Represented in microvolts
What: /sys/class/power_supply/<supply_name>/voltage_max,
Date: January 2008
Contact: linux-pm@vger.kernel.org
Description:
Reports the maximum safe VBAT voltage permitted for the battery,
during charging.
Access: Read
Valid values: Represented in microvolts
What: /sys/class/power_supply/<supply_name>/voltage_min,
Date: January 2008
Contact: linux-pm@vger.kernel.org
Description:
Reports the minimum safe VBAT voltage permitted for the battery,
during discharging.
Access: Read
Valid values: Represented in microvolts
What: /sys/class/power_supply/<supply_name>/voltage_now,
Date: May 2007
Contact: linux-pm@vger.kernel.org
Description:
Reports an instant, single VBAT voltage reading for the battery.
This value is not averaged/smoothed.
Access: Read
Valid values: Represented in microvolts
===== USB Properties =====
What: /sys/class/power_supply/<supply_name>/current_avg
Date: May 2007
Contact: linux-pm@vger.kernel.org
Description:
Reports an average IBUS current reading over a fixed period.
Normally devices will provide a fixed interval in which they
average readings to smooth out the reported value.
Access: Read
Valid values: Represented in microamps
What: /sys/class/power_supply/<supply_name>/current_max
Date: October 2010
Contact: linux-pm@vger.kernel.org
Description:
Reports the maximum IBUS current the supply can support.
Access: Read
Valid values: Represented in microamps
What: /sys/class/power_supply/<supply_name>/current_now
Date: May 2007
Contact: linux-pm@vger.kernel.org
Description:
Reports the IBUS current supplied now. This value is generally
read-only reporting, unless the 'online' state of the supply
is set to be programmable, in which case this value can be set
within the reported min/max range.
Access: Read, Write
Valid values: Represented in microamps
What: /sys/class/power_supply/<supply_name>/input_current_limit
Date: July 2014
Contact: linux-pm@vger.kernel.org
Description:
Details the incoming IBUS current limit currently set in the
supply. Normally this is configured based on the type of
connection made (e.g. A configured SDP should output a maximum
of 500mA so the input current limit is set to the same value).
Access: Read, Write
Valid values: Represented in microamps
What: /sys/class/power_supply/<supply_name>/online,
Date: May 2007
Contact: linux-pm@vger.kernel.org
Description:
Indicates if VBUS is present for the supply. When the supply is
online, and the supply allows it, then it's possible to switch
between online states (e.g. Fixed -> Programmable for a PD_PPS
USB supply so voltage and current can be controlled).
Access: Read, Write
Valid values:
0: Offline
1: Online Fixed - Fixed Voltage Supply
2: Online Programmable - Programmable Voltage Supply
What: /sys/class/power_supply/<supply_name>/temp
Date: May 2007
Contact: linux-pm@vger.kernel.org
Description:
Reports the current supply temperature reading. This would
normally be the internal temperature of the device itself (e.g
TJUNC temperature of an IC)
Access: Read
Valid values: Represented in 1/10 Degrees Celsius
What: /sys/class/power_supply/<supply_name>/temp_alert_max
Date: July 2012
Contact: linux-pm@vger.kernel.org
Description:
Maximum supply temperature trip-wire value where the supply will
notify user-space of the event. This is normally used for the
charging scenario where user-space needs to know the supply
temperature has crossed an upper threshold so it can take
appropriate action (e.g. warning user that the supply
temperature is critically high, and charging has stopped to
remedy the situation).
Access: Read
Valid values: Represented in 1/10 Degrees Celsius
What: /sys/class/power_supply/<supply_name>/temp_alert_min
Date: July 2012
Contact: linux-pm@vger.kernel.org
Description:
Minimum supply temperature trip-wire value where the supply will
notify user-space of the event. This is normally used for the
charging scenario where user-space needs to know the supply
temperature has crossed a lower threshold so it can take
appropriate action (e.g. warning user that the supply
temperature is high, and charging current has been reduced
accordingly to remedy the situation).