Documentation work keeps chugging along; stuff for 6.6 includes:

- Work from Carlos Bilbao to integrate rustdoc output into the generated
   HTML documentation.  This took some work to figure out how to do it
   without slowing the docs build and without creating people who don't have
   Rust installed, but Carlos got there.
 
 - Move the loongarch and mips architecture documentation under
   Documentation/arch/.
 
 - Some more maintainer documentation from Jakub
 
 ...plus the usual assortment of updates, translations, and fixes.
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Merge tag 'docs-6.6' of git://git.lwn.net/linux

Pull documentation updates from Jonathan Corbet:
 "Documentation work keeps chugging along; this includes:

   - Work from Carlos Bilbao to integrate rustdoc output into the
     generated HTML documentation. This took some work to figure out how
     to do it without slowing the docs build and without creating people
     who don't have Rust installed, but Carlos got there

   - Move the loongarch and mips architecture documentation under
     Documentation/arch/

   - Some more maintainer documentation from Jakub

  ... plus the usual assortment of updates, translations, and fixes"

* tag 'docs-6.6' of git://git.lwn.net/linux: (56 commits)
  Docu: genericirq.rst: fix irq-example
  input: docs: pxrc: remove reference to phoenix-sim
  Documentation: serial-console: Fix literal block marker
  docs/mm: remove references to hmm_mirror ops and clean typos
  docs/zh_CN: correct regi_chg(),regi_add() to region_chg(),region_add()
  Documentation: Fix typos
  Documentation/ABI: Fix typos
  scripts: kernel-doc: fix macro handling in enums
  scripts: kernel-doc: parse DEFINE_DMA_UNMAP_[ADDR|LEN]
  Documentation: riscv: Update boot image header since EFI stub is supported
  Documentation: riscv: Add early boot document
  Documentation: arm: Add bootargs to the table of added DT parameters
  docs: kernel-parameters: Refer to the correct bitmap function
  doc: update params of memhp_default_state=
  docs: Add book to process/kernel-docs.rst
  docs: sparse: fix invalid link addresses
  docs: vfs: clean up after the iterate() removal
  docs: Add a section on surveys to the researcher guidelines
  docs: move mips under arch
  docs: move loongarch under arch
  ...
This commit is contained in:
Linus Torvalds 2023-08-30 20:05:42 -07:00
commit cd99b9eb4b
295 changed files with 1609 additions and 663 deletions

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@ -295,7 +295,7 @@ Description:
capable of executing requests targeting different sector ranges capable of executing requests targeting different sector ranges
in parallel. For instance, single LUN multi-actuator hard-disks in parallel. For instance, single LUN multi-actuator hard-disks
will have an independent_access_ranges directory if the device will have an independent_access_ranges directory if the device
correctly advertizes the sector ranges of its actuators. correctly advertises the sector ranges of its actuators.
The independent_access_ranges directory contains one directory The independent_access_ranges directory contains one directory
per access range, with each range described using the sector per access range, with each range described using the sector

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@ -356,7 +356,7 @@ Description:
pkeys/<n>: (RO) Displays the contents of the physical pkeys/<n>: (RO) Displays the contents of the physical
key table n = 0..126 key table n = 0..126
mcgs/: (RO) Muticast group table mcgs/: (RO) Multicast group table
<m>/gid_idx/0: (RO) Display the GID mapping m = 1..2 <m>/gid_idx/0: (RO) Display the GID mapping m = 1..2

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@ -2,6 +2,6 @@ What: /sys/bus/wmi/devices/05901221-D566-11D1-B2F0-00A0C9062910[-X]/bmof
Date: Jun 2017 Date: Jun 2017
KernelVersion: 4.13 KernelVersion: 4.13
Description: Description:
Binary MOF metadata used to decribe the details of available ACPI WMI interfaces. Binary MOF metadata used to describe the details of available ACPI WMI interfaces.
See Documentation/wmi/devices/wmi-bmof.rst for details. See Documentation/wmi/devices/wmi-bmof.rst for details.

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@ -95,7 +95,7 @@ What: /sys/kernel/debug/habanalabs/hl<n>/device_release_watchdog_timeo
Date: Oct 2022 Date: Oct 2022
KernelVersion: 6.2 KernelVersion: 6.2
Contact: ttayar@habana.ai Contact: ttayar@habana.ai
Description: The watchdog timeout value in seconds for a device relese upon Description: The watchdog timeout value in seconds for a device release upon
certain error cases, after which the device is reset. certain error cases, after which the device is reset.
What: /sys/kernel/debug/habanalabs/hl<n>/dma_size What: /sys/kernel/debug/habanalabs/hl<n>/dma_size

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@ -8,7 +8,7 @@ Description:
== =================================== == ===================================
1 major number 1 major number
2 minor mumber 2 minor number
3 device name 3 device name
4 reads completed successfully 4 reads completed successfully
5 reads merged 5 reads merged

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@ -21,7 +21,7 @@ What: /sys/bus/coreboot/devices/cbmem-<id>/address
Date: August 2022 Date: August 2022
Contact: Jack Rosenthal <jrosenth@chromium.org> Contact: Jack Rosenthal <jrosenth@chromium.org>
Description: Description:
This is the pyhsical memory address that the CBMEM entry's data This is the physical memory address that the CBMEM entry's data
begins at, in hexadecimal (e.g., ``0x76ffe000``). begins at, in hexadecimal (e.g., ``0x76ffe000``).
What: /sys/bus/coreboot/devices/cbmem-<id>/size What: /sys/bus/coreboot/devices/cbmem-<id>/size

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@ -31,7 +31,7 @@ Date: November 2014
KernelVersion: 3.19 KernelVersion: 3.19
Contact: Mathieu Poirier <mathieu.poirier@linaro.org> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Used in conjunction with @addr_idx. Specifies the range of Description: (RW) Used in conjunction with @addr_idx. Specifies the range of
addresses to trigger on. Inclusion or exclusion is specificed addresses to trigger on. Inclusion or exclusion is specified
in the corresponding access type register. in the corresponding access type register.
What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/addr_single What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/addr_single
@ -304,19 +304,19 @@ What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/mgmt/etmtsscr
Date: September 2015 Date: September 2015
KernelVersion: 4.4 KernelVersion: 4.4
Contact: Mathieu Poirier <mathieu.poirier@linaro.org> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RO) Print the content of the ETM Trace Start/Stop Conrol Description: (RO) Print the content of the ETM Trace Start/Stop Control
register (0x018). The value is read directly from the HW. register (0x018). The value is read directly from the HW.
What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/mgmt/etmtecr1 What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/mgmt/etmtecr1
Date: September 2015 Date: September 2015
KernelVersion: 4.4 KernelVersion: 4.4
Contact: Mathieu Poirier <mathieu.poirier@linaro.org> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RO) Print the content of the ETM Enable Conrol #1 Description: (RO) Print the content of the ETM Enable Control #1
register (0x024). The value is read directly from the HW. register (0x024). The value is read directly from the HW.
What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/mgmt/etmtecr2 What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/mgmt/etmtecr2
Date: September 2015 Date: September 2015
KernelVersion: 4.4 KernelVersion: 4.4
Contact: Mathieu Poirier <mathieu.poirier@linaro.org> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RO) Print the content of the ETM Enable Conrol #2 Description: (RO) Print the content of the ETM Enable Control #2
register (0x01c). The value is read directly from the HW. register (0x01c). The value is read directly from the HW.

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@ -446,7 +446,7 @@ Date: April 2015
KernelVersion: 4.01 KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org> Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Returns the maximum size of the data value, data address, Description: (Read) Returns the maximum size of the data value, data address,
VMID, context ID and instuction address in the trace unit VMID, context ID and instruction address in the trace unit
(0x1E8). The value is taken directly from the HW. (0x1E8). The value is taken directly from the HW.
What: /sys/bus/coresight/devices/etm<N>/trcidr/trcidr3 What: /sys/bus/coresight/devices/etm<N>/trcidr/trcidr3

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@ -47,7 +47,7 @@ Description: Per-pmu performance monitoring events specific to the running syste
If a <term> is specified alone (without an assigned value), it If a <term> is specified alone (without an assigned value), it
is implied that 0x1 is assigned to that <term>. is implied that 0x1 is assigned to that <term>.
Examples (each of these lines would be in a seperate file): Examples (each of these lines would be in a separate file):
event=0x2abc event=0x2abc
event=0x423,inv,cmask=0x3 event=0x423,inv,cmask=0x3
@ -83,7 +83,7 @@ Description: Perf event scaling factors
A string representing a floating point value expressed in A string representing a floating point value expressed in
scientific notation to be multiplied by the event count scientific notation to be multiplied by the event count
recieved from the kernel to match the unit specified in the received from the kernel to match the unit specified in the
<event>.unit file. <event>.unit file.
Example: Example:

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@ -5,6 +5,6 @@ Description:
Indicates whether or not this SBE device has experienced a Indicates whether or not this SBE device has experienced a
timeout; i.e. the SBE did not respond within the time allotted timeout; i.e. the SBE did not respond within the time allotted
by the driver. A value of 1 indicates that a timeout has by the driver. A value of 1 indicates that a timeout has
ocurred and no transfers have completed since the timeout. A occurred and no transfers have completed since the timeout. A
value of 0 indicates that no timeout has ocurred, or if one value of 0 indicates that no timeout has occurred, or if one
has, more recent transfers have completed successful. has, more recent transfers have completed successful.

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@ -8,7 +8,7 @@ Description:
NONE no device NONE no device
USB USB device is attached USB USB device is attached
UART UART is attached UART UART is attached
CHARGER Charger is attaced CHARGER Charger is attached
JIG JIG is attached JIG JIG is attached
======= ====================== ======= ======================

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@ -121,7 +121,7 @@ KernelVersion: v4.7
Contact: nvdimm@lists.linux.dev Contact: nvdimm@lists.linux.dev
Description: Description:
(RO) ACPI specification 6.2 section 5.2.25.9, defines an (RO) ACPI specification 6.2 section 5.2.25.9, defines an
identifier for an NVDIMM, which refelects the id attribute. identifier for an NVDIMM, which reflects the id attribute.
What: /sys/bus/nd/devices/nmemX/nfit/subsystem_vendor What: /sys/bus/nd/devices/nmemX/nfit/subsystem_vendor

View File

@ -18,9 +18,11 @@ Description: (RO) Attribute group to describe the magic bits
Each attribute under this group defines a bit range of the Each attribute under this group defines a bit range of the
perf_event_attr.config. Supported attribute is listed perf_event_attr.config. Supported attribute is listed
below:: below::
event = "config:0-4" - event ID event = "config:0-4" - event ID
For example:: For example::
ctl_res_cnt = "event=0x1" ctl_res_cnt = "event=0x1"
What: /sys/bus/event_source/devices/nmemX/events What: /sys/bus/event_source/devices/nmemX/events

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@ -30,7 +30,7 @@ Description:
Indicating that contents of the Indicating that contents of the
NVDIMM have been scrubbed. NVDIMM have been scrubbed.
* "locked" * "locked"
Indicating that NVDIMM contents cant Indicating that NVDIMM contents can't
be modified until next power cycle. be modified until next power cycle.
What: /sys/bus/nd/devices/nmemX/papr/perf_stats What: /sys/bus/nd/devices/nmemX/papr/perf_stats

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@ -9,7 +9,7 @@ Description:
Controller (UMC). Controller (UMC).
The umc bus presents each of the individual The umc bus presents each of the individual
capabilties as a device. capabilities as a device.
What: /sys/bus/umc/devices/.../capability_id What: /sys/bus/umc/devices/.../capability_id
Date: July 2008 Date: July 2008

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@ -1,5 +1,5 @@
What: /sys/class/ What: /sys/class/
Date: Febuary 2006 Date: February 2006
Contact: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Contact: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Description: Description:
The /sys/class directory will consist of a group of The /sys/class directory will consist of a group of

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@ -42,7 +42,7 @@ What: /sys/class/cxl/<afu>/mmio_size
Date: September 2014 Date: September 2014
Contact: linuxppc-dev@lists.ozlabs.org Contact: linuxppc-dev@lists.ozlabs.org
Description: read only Description: read only
Decimal value of the size of the MMIO space that may be mmaped Decimal value of the size of the MMIO space that may be mmapped
by userspace. by userspace.
Users: https://github.com/ibm-capi/libcxl Users: https://github.com/ibm-capi/libcxl
@ -155,7 +155,7 @@ What: /sys/class/cxl/<afu>m/mmio_size
Date: September 2014 Date: September 2014
Contact: linuxppc-dev@lists.ozlabs.org Contact: linuxppc-dev@lists.ozlabs.org
Description: read only Description: read only
Decimal value of the size of the MMIO space that may be mmaped Decimal value of the size of the MMIO space that may be mmapped
by userspace. This includes all slave contexts space also. by userspace. This includes all slave contexts space also.
Users: https://github.com/ibm-capi/libcxl Users: https://github.com/ibm-capi/libcxl

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@ -39,7 +39,7 @@ KernelVersion: 2.6.29
Contact: linux-mtd@lists.infradead.org Contact: linux-mtd@lists.infradead.org
Description: Description:
Major and minor numbers of the character device corresponding Major and minor numbers of the character device corresponding
to the read-only variant of thie MTD device (in to the read-only variant of the MTD device (in
<major>:<minor> format). In this case <minor> will be odd. <major>:<minor> format). In this case <minor> will be odd.
What: /sys/class/mtd/mtdX/erasesize What: /sys/class/mtd/mtdX/erasesize

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@ -82,7 +82,7 @@ KernelVersion: 2.6.12
Contact: netdev@vger.kernel.org Contact: netdev@vger.kernel.org
Description: Description:
Indicates the current physical link state of the interface. Indicates the current physical link state of the interface.
Posssible values are: Possible values are:
== ===================== == =====================
0 physical link is down 0 physical link is down

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@ -39,7 +39,7 @@ Contact: netdev@vger.kernel.org
Description: Description:
Mask of the CPU(s) currently enabled to participate into the Mask of the CPU(s) currently enabled to participate into the
Transmit Packet Steering packet processing flow for this Transmit Packet Steering packet processing flow for this
network device transmit queue. Possible vaules depend on the network device transmit queue. Possible values depend on the
number of available CPU(s) in the system. number of available CPU(s) in the system.
What: /sys/class/<iface>/queues/tx-<queue>/xps_rxqs What: /sys/class/<iface>/queues/tx-<queue>/xps_rxqs

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@ -22,7 +22,7 @@ Description:
Long Life: Long Life:
Customized charge rate for last longer battery life. Customized charge rate for last longer battery life.
On Wilco device this mode is pre-configured in the factory On Wilco device this mode is pre-configured in the factory
through EC's private PID. Swiching to a different mode will through EC's private PID. Switching to a different mode will
be denied by Wilco EC when Long Life mode is enabled. be denied by Wilco EC when Long Life mode is enabled.
What: /sys/class/power_supply/wilco-charger/charge_control_start_threshold What: /sys/class/power_supply/wilco-charger/charge_control_start_threshold

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@ -81,7 +81,7 @@ Description: Remote processor coredump configuration
collected userspace will directly read from the remote collected userspace will directly read from the remote
processor's device memory. Extra buffer will not be used to processor's device memory. Extra buffer will not be used to
copy the dump. Also recovery process will not proceed until copy the dump. Also recovery process will not proceed until
all data is read by usersapce. all data is read by userspace.
What: /sys/class/remoteproc/.../recovery What: /sys/class/remoteproc/.../recovery
Date: July 2020 Date: July 2020

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@ -42,7 +42,7 @@ Date: June 2013
KernelVersion: 3.11 KernelVersion: 3.11
Contact: Thomas Pugliese <thomas.pugliese@gmail.com> Contact: Thomas Pugliese <thomas.pugliese@gmail.com>
Description: Description:
The device notification time slot (DNTS) count and inverval in The device notification time slot (DNTS) count and interval in
milliseconds that the WUSB host should use. This controls how milliseconds that the WUSB host should use. This controls how
often the devices will have the opportunity to send often the devices will have the opportunity to send
notifications to the host. notifications to the host.

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@ -17,4 +17,4 @@ Description:
After a successful execution of the bus type's .offline() After a successful execution of the bus type's .offline()
callback the device cannot be used for any purpose until either callback the device cannot be used for any purpose until either
it is removed (i.e. device_del() is called for it), or its bus it is removed (i.e. device_del() is called for it), or its bus
type's .online() is exeucted successfully. type's .online() is executed successfully.

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@ -5,7 +5,7 @@ Description: Write 1 to this file to update the ACHC microcontroller
firmware via the EzPort interface. For this the kernel firmware via the EzPort interface. For this the kernel
will load "achc.bin" via the firmware API (so usually will load "achc.bin" via the firmware API (so usually
from /lib/firmware). The write will block until the FW from /lib/firmware). The write will block until the FW
has either been flashed successfully or an error occured. has either been flashed successfully or an error occurred.
What: /sys/bus/spi/<dev>/reset What: /sys/bus/spi/<dev>/reset
Date: Jul 2021 Date: Jul 2021

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@ -3,7 +3,7 @@ Date: February 2014
Contact: Peter De Schrijver <pdeschrijver@nvidia.com> Contact: Peter De Schrijver <pdeschrijver@nvidia.com>
Description: read-only access to the efuses on Tegra20, Tegra30, Tegra114 Description: read-only access to the efuses on Tegra20, Tegra30, Tegra114
and Tegra124 SoC's from NVIDIA. The efuses contain write once and Tegra124 SoC's from NVIDIA. The efuses contain write once
data programmed at the factory. The data is layed out in 32bit data programmed at the factory. The data is laid out in 32bit
words in LSB first format. Each bit represents a single value words in LSB first format. Each bit represents a single value
as decoded from the fuse registers. Bits order/assignment as decoded from the fuse registers. Bits order/assignment
exactly matches the HW registers, including any unused bits. exactly matches the HW registers, including any unused bits.

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@ -84,7 +84,7 @@ Description:
hotplug events associated with the given class of hotplug events associated with the given class of
devices and will allow those devices to be ejected with devices and will allow those devices to be ejected with
the help of the _EJ0 control method. Unsetting it the help of the _EJ0 control method. Unsetting it
effectively disables hotplug for the correspoinding effectively disables hotplug for the corresponding
class of devices. class of devices.
======== ======================================================= ======== =======================================================

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@ -102,12 +102,12 @@ Description:
conn_port conn_port
The conn_hub entry contains a value representing the unique The conn_hub entry contains a value representing the unique
oridinal value of the hub on the other end of the fabric ordinal value of the hub on the other end of the fabric
cable plugged into the port. If the port is disconnected, cable plugged into the port. If the port is disconnected,
the value returned will be -1. the value returned will be -1.
The conn_port entry contains a value representing the unique The conn_port entry contains a value representing the unique
oridinal value of the port on the other end of the fabric cable ordinal value of the port on the other end of the fabric cable
plugged into the port. If the port is disconnected, the value plugged into the port. If the port is disconnected, the value
returned will be -1. returned will be -1.

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@ -54,9 +54,9 @@ Description: Controls the in-place-update policy.
0x00 DISABLE disable IPU(=default option in LFS mode) 0x00 DISABLE disable IPU(=default option in LFS mode)
0x01 FORCE all the time 0x01 FORCE all the time
0x02 SSR if SSR mode is activated 0x02 SSR if SSR mode is activated
0x04 UTIL if FS utilization is over threashold 0x04 UTIL if FS utilization is over threshold
0x08 SSR_UTIL if SSR mode is activated and FS utilization is over 0x08 SSR_UTIL if SSR mode is activated and FS utilization is over
threashold threshold
0x10 FSYNC activated in fsync path only for high performance 0x10 FSYNC activated in fsync path only for high performance
flash storages. IPU will be triggered only if the flash storages. IPU will be triggered only if the
# of dirty pages over min_fsync_blocks. # of dirty pages over min_fsync_blocks.
@ -117,7 +117,7 @@ Date: December 2021
Contact: "Konstantin Vyshetsky" <vkon@google.com> Contact: "Konstantin Vyshetsky" <vkon@google.com>
Description: Controls the number of discards a thread will issue at a time. Description: Controls the number of discards a thread will issue at a time.
Higher number will allow the discard thread to finish its work Higher number will allow the discard thread to finish its work
faster, at the cost of higher latency for incomming I/O. faster, at the cost of higher latency for incoming I/O.
What: /sys/fs/f2fs/<disk>/min_discard_issue_time What: /sys/fs/f2fs/<disk>/min_discard_issue_time
Date: December 2021 Date: December 2021
@ -334,7 +334,7 @@ Description: This indicates how many GC can be failed for the pinned
state. 2048 trials is set by default. state. 2048 trials is set by default.
What: /sys/fs/f2fs/<disk>/extension_list What: /sys/fs/f2fs/<disk>/extension_list
Date: Feburary 2018 Date: February 2018
Contact: "Chao Yu" <yuchao0@huawei.com> Contact: "Chao Yu" <yuchao0@huawei.com>
Description: Used to control configure extension list: Description: Used to control configure extension list:
- Query: cat /sys/fs/f2fs/<disk>/extension_list - Query: cat /sys/fs/f2fs/<disk>/extension_list

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@ -154,7 +154,7 @@ Description: Writing to and reading from this file sets and gets the action
What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/access_pattern/sz/min What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/access_pattern/sz/min
Date: Mar 2022 Date: Mar 2022
Contact: SeongJae Park <sj@kernel.org> Contact: SeongJae Park <sj@kernel.org>
Description: Writing to and reading from this file sets and gets the mimimum Description: Writing to and reading from this file sets and gets the minimum
size of the scheme's target regions in bytes. size of the scheme's target regions in bytes.
What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/access_pattern/sz/max What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/access_pattern/sz/max

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@ -15,7 +15,7 @@ KernelVersion: 3.19
Contact: Gabriele Mazzotta <gabriele.mzt@gmail.com>, Contact: Gabriele Mazzotta <gabriele.mzt@gmail.com>,
Pali Rohár <pali@kernel.org> Pali Rohár <pali@kernel.org>
Description: Description:
This file allows to specifiy the on/off threshold value, This file allows to specify the on/off threshold value,
as reported by the ambient light sensor. as reported by the ambient light sensor.
What: /sys/class/leds/dell::kbd_backlight/start_triggers What: /sys/class/leds/dell::kbd_backlight/start_triggers

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@ -90,7 +90,7 @@ KernelVersion: 5.4
Contact: Wu Hao <hao.wu@intel.com> Contact: Wu Hao <hao.wu@intel.com>
Description: Read-Write. Read this file to get errors detected on FME. Description: Read-Write. Read this file to get errors detected on FME.
Write this file to clear errors logged in fme_errors. Write Write this file to clear errors logged in fme_errors. Write
fials with -EINVAL if input parsing fails or input error code fails with -EINVAL if input parsing fails or input error code
doesn't match. doesn't match.
What: /sys/bus/platform/devices/dfl-fme.0/errors/first_error What: /sys/bus/platform/devices/dfl-fme.0/errors/first_error

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@ -9,7 +9,7 @@ Description:
The device name flows down to architecture specific board The device name flows down to architecture specific board
initialization file from the ATAGS bootloader initialization file from the ATAGS bootloader
firmware. The name exposed is read from the user-space firmware. The name exposed is read from the user-space
dameon and opens the device when install is requested. daemon and opens the device when install is requested.
What: /sys/devices/platform/kim/baud_rate What: /sys/devices/platform/kim/baud_rate
Date: January 2010 Date: January 2010

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@ -4,7 +4,7 @@ KernelVersion: 4.10
Contact: "Sebastien Guiriec" <sebastien.guiriec@intel.com> Contact: "Sebastien Guiriec" <sebastien.guiriec@intel.com>
Description: Description:
LPE Firmware version for SST driver on all atom LPE Firmware version for SST driver on all atom
plaforms (BYT/CHT/Merrifield/BSW). platforms (BYT/CHT/Merrifield/BSW).
If the FW has never been loaded it will display:: If the FW has never been loaded it will display::
"FW not yet loaded" "FW not yet loaded"

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@ -59,6 +59,12 @@ PAPEROPT_letter = -D latex_paper_size=letter
KERNELDOC = $(srctree)/scripts/kernel-doc KERNELDOC = $(srctree)/scripts/kernel-doc
KERNELDOC_CONF = -D kerneldoc_srctree=$(srctree) -D kerneldoc_bin=$(KERNELDOC) KERNELDOC_CONF = -D kerneldoc_srctree=$(srctree) -D kerneldoc_bin=$(KERNELDOC)
ALLSPHINXOPTS = $(KERNELDOC_CONF) $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) ALLSPHINXOPTS = $(KERNELDOC_CONF) $(PAPEROPT_$(PAPER)) $(SPHINXOPTS)
ifneq ($(wildcard $(srctree)/.config),)
ifeq ($(CONFIG_RUST),y)
# Let Sphinx know we will include rustdoc
ALLSPHINXOPTS += -t rustdoc
endif
endif
# the i18n builder cannot share the environment and doctrees with the others # the i18n builder cannot share the environment and doctrees with the others
I18NSPHINXOPTS = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) . I18NSPHINXOPTS = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
@ -95,6 +101,16 @@ htmldocs:
@$(srctree)/scripts/sphinx-pre-install --version-check @$(srctree)/scripts/sphinx-pre-install --version-check
@+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,html,$(var),,$(var))) @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,html,$(var),,$(var)))
# If Rust support is available and .config exists, add rustdoc generated contents.
# If there are any, the errors from this make rustdoc will be displayed but
# won't stop the execution of htmldocs
ifneq ($(wildcard $(srctree)/.config),)
ifeq ($(CONFIG_RUST),y)
$(Q)$(MAKE) rustdoc || true
endif
endif
texinfodocs: texinfodocs:
@$(srctree)/scripts/sphinx-pre-install --version-check @$(srctree)/scripts/sphinx-pre-install --version-check
@+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,texinfo,$(var),texinfo,$(var))) @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,texinfo,$(var),texinfo,$(var)))

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@ -178,7 +178,7 @@ Userspace monitor usage example
Cgroup2 interface Cgroup2 interface
================= =================
In a system with a CONFIG_CGROUP=y kernel and the cgroup2 filesystem In a system with a CONFIG_CGROUPS=y kernel and the cgroup2 filesystem
mounted, pressure stall information is also tracked for tasks grouped mounted, pressure stall information is also tracked for tasks grouped
into cgroups. Each subdirectory in the cgroupfs mountpoint contains into cgroups. Each subdirectory in the cgroupfs mountpoint contains
cpu.pressure, memory.pressure, and io.pressure files; the format is cpu.pressure, memory.pressure, and io.pressure files; the format is

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@ -62,7 +62,7 @@ Please note that implementation details can be changed.
At cancel(), simply usage -= PAGE_SIZE. At cancel(), simply usage -= PAGE_SIZE.
Under below explanation, we assume CONFIG_MEM_RES_CTRL_SWAP=y. Under below explanation, we assume CONFIG_SWAP=y.
4. Anonymous 4. Anonymous
============ ============

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@ -80,7 +80,7 @@ The special case-tolerant group name "all" has a meaning of selecting all CPUs,
so that "nohz_full=all" is the equivalent of "nohz_full=0-N". so that "nohz_full=all" is the equivalent of "nohz_full=0-N".
The semantics of "N" and "all" is supported on a level of bitmaps and holds for The semantics of "N" and "all" is supported on a level of bitmaps and holds for
all users of bitmap_parse(). all users of bitmap_parselist().
This document may not be entirely up to date and comprehensive. The command This document may not be entirely up to date and comprehensive. The command
"modinfo -p ${modulename}" shows a current list of all parameters of a loadable "modinfo -p ${modulename}" shows a current list of all parameters of a loadable
@ -89,10 +89,11 @@ reveal their parameters in /sys/module/${modulename}/parameters/. Some of these
parameters may be changed at runtime by the command parameters may be changed at runtime by the command
``echo -n ${value} > /sys/module/${modulename}/parameters/${parm}``. ``echo -n ${value} > /sys/module/${modulename}/parameters/${parm}``.
The parameters listed below are only valid if certain kernel build options were The parameters listed below are only valid if certain kernel build options
enabled and if respective hardware is present. The text in square brackets at were enabled and if respective hardware is present. This list should be kept
the beginning of each description states the restrictions within which a in alphabetical order. The text in square brackets at the beginning
parameter is applicable:: of each description states the restrictions within which a parameter
is applicable::
ACPI ACPI support is enabled. ACPI ACPI support is enabled.
AGP AGP (Accelerated Graphics Port) is enabled. AGP AGP (Accelerated Graphics Port) is enabled.
@ -127,9 +128,9 @@ parameter is applicable::
KGDB Kernel debugger support is enabled. KGDB Kernel debugger support is enabled.
KVM Kernel Virtual Machine support is enabled. KVM Kernel Virtual Machine support is enabled.
LIBATA Libata driver is enabled LIBATA Libata driver is enabled
LP Printer support is enabled.
LOONGARCH LoongArch architecture is enabled. LOONGARCH LoongArch architecture is enabled.
LOOP Loopback device support is enabled. LOOP Loopback device support is enabled.
LP Printer support is enabled.
M68k M68k architecture is enabled. M68k M68k architecture is enabled.
These options have more detailed description inside of These options have more detailed description inside of
Documentation/arch/m68k/kernel-options.rst. Documentation/arch/m68k/kernel-options.rst.
@ -139,10 +140,9 @@ parameter is applicable::
MSI Message Signaled Interrupts (PCI). MSI Message Signaled Interrupts (PCI).
MTD MTD (Memory Technology Device) support is enabled. MTD MTD (Memory Technology Device) support is enabled.
NET Appropriate network support is enabled. NET Appropriate network support is enabled.
NUMA NUMA support is enabled.
NFS Appropriate NFS support is enabled. NFS Appropriate NFS support is enabled.
NUMA NUMA support is enabled.
OF Devicetree is enabled. OF Devicetree is enabled.
PV_OPS A paravirtualized kernel is enabled.
PARISC The PA-RISC architecture is enabled. PARISC The PA-RISC architecture is enabled.
PCI PCI bus support is enabled. PCI PCI bus support is enabled.
PCIE PCI Express support is enabled. PCIE PCI Express support is enabled.
@ -151,9 +151,10 @@ parameter is applicable::
PPC PowerPC architecture is enabled. PPC PowerPC architecture is enabled.
PPT Parallel port support is enabled. PPT Parallel port support is enabled.
PS2 Appropriate PS/2 support is enabled. PS2 Appropriate PS/2 support is enabled.
PV_OPS A paravirtualized kernel is enabled.
RAM RAM disk support is enabled. RAM RAM disk support is enabled.
RISCV RISCV architecture is enabled.
RDT Intel Resource Director Technology. RDT Intel Resource Director Technology.
RISCV RISCV architecture is enabled.
S390 S390 architecture is enabled. S390 S390 architecture is enabled.
SCSI Appropriate SCSI support is enabled. SCSI Appropriate SCSI support is enabled.
A lot of drivers have their options described inside A lot of drivers have their options described inside
@ -164,15 +165,15 @@ parameter is applicable::
SH SuperH architecture is enabled. SH SuperH architecture is enabled.
SMP The kernel is an SMP kernel. SMP The kernel is an SMP kernel.
SPARC Sparc architecture is enabled. SPARC Sparc architecture is enabled.
SWSUSP Software suspend (hibernation) is enabled.
SUSPEND System suspend states are enabled. SUSPEND System suspend states are enabled.
SWSUSP Software suspend (hibernation) is enabled.
TPM TPM drivers are enabled. TPM TPM drivers are enabled.
UMS USB Mass Storage support is enabled. UMS USB Mass Storage support is enabled.
USB USB support is enabled. USB USB support is enabled.
USBHID USB Human Interface Device support is enabled. USBHID USB Human Interface Device support is enabled.
V4L Video For Linux support is enabled. V4L Video For Linux support is enabled.
VMMIO Driver for memory mapped virtio devices is enabled.
VGA The VGA console has been enabled. VGA The VGA console has been enabled.
VMMIO Driver for memory mapped virtio devices is enabled.
VT Virtual terminal support is enabled. VT Virtual terminal support is enabled.
WDT Watchdog support is enabled. WDT Watchdog support is enabled.
X86-32 X86-32, aka i386 architecture is enabled. X86-32 X86-32, aka i386 architecture is enabled.
@ -186,9 +187,9 @@ parameter is applicable::
In addition, the following text indicates that the option:: In addition, the following text indicates that the option::
BOOT Is a boot loader parameter.
BUGS= Relates to possible processor bugs on the said processor. BUGS= Relates to possible processor bugs on the said processor.
KNL Is a kernel start-up parameter. KNL Is a kernel start-up parameter.
BOOT Is a boot loader parameter.
Parameters denoted with BOOT are actually interpreted by the boot Parameters denoted with BOOT are actually interpreted by the boot
loader, and have no meaning to the kernel directly. loader, and have no meaning to the kernel directly.

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@ -418,20 +418,20 @@
arm64.nobti [ARM64] Unconditionally disable Branch Target arm64.nobti [ARM64] Unconditionally disable Branch Target
Identification support Identification support
arm64.nopauth [ARM64] Unconditionally disable Pointer Authentication arm64.nomops [ARM64] Unconditionally disable Memory Copy and Memory
support Set instructions support
arm64.nomte [ARM64] Unconditionally disable Memory Tagging Extension arm64.nomte [ARM64] Unconditionally disable Memory Tagging Extension
support support
arm64.nosve [ARM64] Unconditionally disable Scalable Vector arm64.nopauth [ARM64] Unconditionally disable Pointer Authentication
Extension support support
arm64.nosme [ARM64] Unconditionally disable Scalable Matrix arm64.nosme [ARM64] Unconditionally disable Scalable Matrix
Extension support Extension support
arm64.nomops [ARM64] Unconditionally disable Memory Copy and Memory arm64.nosve [ARM64] Unconditionally disable Scalable Vector
Set instructions support Extension support
ataflop= [HW,M68k] ataflop= [HW,M68k]
@ -2655,7 +2655,7 @@
kvm-intel.flexpriority= kvm-intel.flexpriority=
[KVM,Intel] Control KVM's use of FlexPriority feature [KVM,Intel] Control KVM's use of FlexPriority feature
(TPR shadow). Default is 1 (enabled). Disalbe by KVM if (TPR shadow). Default is 1 (enabled). Disable by KVM if
hardware lacks support for it. hardware lacks support for it.
kvm-intel.nested= kvm-intel.nested=
@ -3140,7 +3140,7 @@
[KNL,SH] Allow user to override the default size for [KNL,SH] Allow user to override the default size for
per-device physically contiguous DMA buffers. per-device physically contiguous DMA buffers.
memhp_default_state=online/offline memhp_default_state=online/offline/online_kernel/online_movable
[KNL] Set the initial state for the memory hotplug [KNL] Set the initial state for the memory hotplug
onlining policy. If not specified, the default value is onlining policy. If not specified, the default value is
set according to the set according to the
@ -4073,20 +4073,6 @@
timeout < 0: reboot immediately timeout < 0: reboot immediately
Format: <timeout> Format: <timeout>
panic_print= Bitmask for printing system info when panic happens.
User can chose combination of the following bits:
bit 0: print all tasks info
bit 1: print system memory info
bit 2: print timer info
bit 3: print locks info if CONFIG_LOCKDEP is on
bit 4: print ftrace buffer
bit 5: print all printk messages in buffer
bit 6: print all CPUs backtrace (if available in the arch)
*Be aware* that this option may print a _lot_ of lines,
so there are risks of losing older messages in the log.
Use this option carefully, maybe worth to setup a
bigger log buffer with "log_buf_len" along with this.
panic_on_taint= Bitmask for conditionally calling panic() in add_taint() panic_on_taint= Bitmask for conditionally calling panic() in add_taint()
Format: <hex>[,nousertaint] Format: <hex>[,nousertaint]
Hexadecimal bitmask representing the set of TAINT flags Hexadecimal bitmask representing the set of TAINT flags
@ -4103,6 +4089,20 @@
panic_on_warn=1 panic() instead of WARN(). Useful to cause kdump panic_on_warn=1 panic() instead of WARN(). Useful to cause kdump
on a WARN(). on a WARN().
panic_print= Bitmask for printing system info when panic happens.
User can chose combination of the following bits:
bit 0: print all tasks info
bit 1: print system memory info
bit 2: print timer info
bit 3: print locks info if CONFIG_LOCKDEP is on
bit 4: print ftrace buffer
bit 5: print all printk messages in buffer
bit 6: print all CPUs backtrace (if available in the arch)
*Be aware* that this option may print a _lot_ of lines,
so there are risks of losing older messages in the log.
Use this option carefully, maybe worth to setup a
bigger log buffer with "log_buf_len" along with this.
parkbd.port= [HW] Parallel port number the keyboard adapter is parkbd.port= [HW] Parallel port number the keyboard adapter is
connected to, default is 0. connected to, default is 0.
Format: <parport#> Format: <parport#>
@ -4222,7 +4222,7 @@
mode 0, bit 1 is for mode 1, and so on. Mode 0 only mode 0, bit 1 is for mode 1, and so on. Mode 0 only
allowed by default. allowed by default.
pause_on_oops= pause_on_oops=<int>
Halt all CPUs after the first oops has been printed for Halt all CPUs after the first oops has been printed for
the specified number of seconds. This is to be used if the specified number of seconds. This is to be used if
your oopses keep scrolling off the screen. your oopses keep scrolling off the screen.

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@ -99,7 +99,7 @@ Root
The root of the DAMON sysfs interface is ``<sysfs>/kernel/mm/damon/``, and it The root of the DAMON sysfs interface is ``<sysfs>/kernel/mm/damon/``, and it
has one directory named ``admin``. The directory contains the files for has one directory named ``admin``. The directory contains the files for
privileged user space programs' control of DAMON. User space tools or deamons privileged user space programs' control of DAMON. User space tools or daemons
having the root permission could use this directory. having the root permission could use this directory.
kdamonds/ kdamonds/
@ -413,7 +413,7 @@ be used for online analysis or tuning of the schemes.
The statistics can be retrieved by reading the files under ``stats`` directory The statistics can be retrieved by reading the files under ``stats`` directory
(``nr_tried``, ``sz_tried``, ``nr_applied``, ``sz_applied``, and (``nr_tried``, ``sz_tried``, ``nr_applied``, ``sz_applied``, and
``qt_exceeds``), respectively. The files are not updated in real time, so you ``qt_exceeds``), respectively. The files are not updated in real time, so you
should ask DAMON sysfs interface to updte the content of the files for the should ask DAMON sysfs interface to update the content of the files for the
stats by writing a special keyword, ``update_schemes_stats`` to the relevant stats by writing a special keyword, ``update_schemes_stats`` to the relevant
``kdamonds/<N>/state`` file. ``kdamonds/<N>/state`` file.

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@ -109,7 +109,7 @@ VMA Policy
* A task may install a new VMA policy on a sub-range of a * A task may install a new VMA policy on a sub-range of a
previously mmap()ed region. When this happens, Linux splits previously mmap()ed region. When this happens, Linux splits
the existing virtual memory area into 2 or 3 VMAs, each with the existing virtual memory area into 2 or 3 VMAs, each with
it's own policy. its own policy.
* By default, VMA policy applies only to pages allocated after * By default, VMA policy applies only to pages allocated after
the policy is installed. Any pages already faulted into the the policy is installed. Any pages already faulted into the

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@ -266,7 +266,7 @@ for which it has a public key. Otherwise, it will also load modules that are
unsigned. Any module for which the kernel has a key, but which proves to have unsigned. Any module for which the kernel has a key, but which proves to have
a signature mismatch will not be permitted to load. a signature mismatch will not be permitted to load.
Any module that has an unparseable signature will be rejected. Any module that has an unparsable signature will be rejected.
========================================= =========================================

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@ -59,7 +59,7 @@ times. In this case, there are the following two rules:
the hardware is not available. the hardware is not available.
The result might be surprising. For example, the following two command The result might be surprising. For example, the following two command
lines have the same result: lines have the same result::
console=ttyS1,9600 console=tty0 console=tty1 console=ttyS1,9600 console=tty0 console=tty1
console=tty0 console=ttyS1,9600 console=tty1 console=tty0 console=ttyS1,9600 console=tty1

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@ -192,7 +192,7 @@ When mounting an XFS filesystem, the following options are accepted.
are any integer multiple of a valid ``sunit`` value. are any integer multiple of a valid ``sunit`` value.
Typically the only time these mount options are necessary if Typically the only time these mount options are necessary if
after an underlying RAID device has had it's geometry after an underlying RAID device has had its geometry
modified, such as adding a new disk to a RAID5 lun and modified, such as adding a new disk to a RAID5 lun and
reshaping it. reshaping it.

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@ -141,7 +141,7 @@ ST506 hard drives
`*configure` harddrive set to 2). I've got an internal 20MB and a great `*configure` harddrive set to 2). I've got an internal 20MB and a great
big external 5.25" FH 64MB drive (who could ever want more :-) ). big external 5.25" FH 64MB drive (who could ever want more :-) ).
I've just got 240K/s off it (a dd with bs=128k); thats about half of what I've just got 240K/s off it (a dd with bs=128k); that's about half of what
RiscOS gets; but it's a heck of a lot better than the 50K/s I was getting RiscOS gets; but it's a heck of a lot better than the 50K/s I was getting
last week :-) last week :-)

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@ -78,9 +78,9 @@ IXP4xx provides two methods of accessing PCI memory space:
1) A direct mapped window from 0x48000000 to 0x4bffffff (64MB). 1) A direct mapped window from 0x48000000 to 0x4bffffff (64MB).
To access PCI via this space, we simply ioremap() the BAR To access PCI via this space, we simply ioremap() the BAR
into the kernel and we can use the standard read[bwl]/write[bwl] into the kernel and we can use the standard read[bwl]/write[bwl]
macros. This is the preffered method due to speed but it macros. This is the preferred method due to speed but it
limits the system to just 64MB of PCI memory. This can be limits the system to just 64MB of PCI memory. This can be
problamatic if using video cards and other memory-heavy devices. problematic if using video cards and other memory-heavy devices.
2) If > 64MB of memory space is required, the IXP4xx can be 2) If > 64MB of memory space is required, the IXP4xx can be
configured to use indirect registers to access PCI This allows configured to use indirect registers to access PCI This allows

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@ -5,7 +5,7 @@ Frequently asked questions about the sunxi clock system
This document contains useful bits of information that people tend to ask This document contains useful bits of information that people tend to ask
about the sunxi clock system, as well as accompanying ASCII art when adequate. about the sunxi clock system, as well as accompanying ASCII art when adequate.
Q: Why is the main 24MHz oscillator gatable? Wouldn't that break the Q: Why is the main 24MHz oscillator gateable? Wouldn't that break the
system? system?
A: The 24MHz oscillator allows gating to save power. Indeed, if gated A: The 24MHz oscillator allows gating to save power. Indeed, if gated

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@ -1,7 +1,7 @@
Software emulation of deprecated SWP instruction (CONFIG_SWP_EMULATE) Software emulation of deprecated SWP instruction (CONFIG_SWP_EMULATE)
--------------------------------------------------------------------- ---------------------------------------------------------------------
ARMv6 architecture deprecates use of the SWP/SWPB instructions, and recommeds ARMv6 architecture deprecates use of the SWP/SWPB instructions, and recommends
moving to the load-locked/store-conditional instructions LDREX and STREX. moving to the load-locked/store-conditional instructions LDREX and STREX.
ARMv7 multiprocessing extensions introduce the ability to disable these ARMv7 multiprocessing extensions introduce the ability to disable these

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@ -71,7 +71,7 @@ in <asm/tcm.h>. Using this interface it is possible to:
- Have the remaining TCM RAM added to a special - Have the remaining TCM RAM added to a special
allocation pool with gen_pool_create() and gen_pool_add() allocation pool with gen_pool_create() and gen_pool_add()
and provice tcm_alloc() and tcm_free() for this and provide tcm_alloc() and tcm_free() for this
memory. Such a heap is great for things like saving memory. Such a heap is great for things like saving
device state when shutting off device power domains. device state when shutting off device power domains.

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@ -50,7 +50,7 @@ The stub populates the FDT /chosen node with (and the kernel scans for) the
following parameters: following parameters:
========================== ====== =========================================== ========================== ====== ===========================================
Name Size Description Name Type Description
========================== ====== =========================================== ========================== ====== ===========================================
linux,uefi-system-table 64-bit Physical address of the UEFI System Table. linux,uefi-system-table 64-bit Physical address of the UEFI System Table.
@ -67,4 +67,6 @@ linux,uefi-mmap-desc-ver 32-bit Version of the mmap descriptor format.
kaslr-seed 64-bit Entropy used to randomize the kernel image kaslr-seed 64-bit Entropy used to randomize the kernel image
base address location. base address location.
bootargs String Kernel command line
========================== ====== =========================================== ========================== ====== ===========================================

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@ -155,7 +155,7 @@ the basic algorithm:
optimisation. optimisation.
If there are too many CPUs to read the currently_voting array in If there are too many CPUs to read the currently_voting array in
one transaction then multiple transations are still required. The one transaction then multiple transactions are still required. The
implementation uses a simple loop of word-sized loads for this implementation uses a simple loop of word-sized loads for this
case. The number of transactions is still fewer than would be case. The number of transactions is still fewer than would be
required if bytes were loaded individually. required if bytes were loaded individually.

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@ -45,7 +45,7 @@ APMT Signature Reserved (signature == "APMT")
**Arm Performance Monitoring Table** **Arm Performance Monitoring Table**
This table describes the properties of PMU support implmented by This table describes the properties of PMU support implemented by
components in the system. components in the system.
BERT Section 18.3 (signature == "BERT") BERT Section 18.3 (signature == "BERT")

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@ -99,7 +99,7 @@ to replace the kernel.
When a Linux driver or subsystem is first implemented using ACPI, it by When a Linux driver or subsystem is first implemented using ACPI, it by
definition ends up requiring a specific version of the ACPI specification definition ends up requiring a specific version of the ACPI specification
-- it's baseline. ACPI firmware must continue to work, even though it may -- its baseline. ACPI firmware must continue to work, even though it may
not be optimal, with the earliest kernel version that first provides support not be optimal, with the earliest kernel version that first provides support
for that baseline version of ACPI. There may be a need for additional drivers, for that baseline version of ACPI. There may be a need for additional drivers,
but adding new functionality (e.g., CPU power management) should not break but adding new functionality (e.g., CPU power management) should not break

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@ -13,9 +13,9 @@ implementation.
arm/index arm/index
arm64/index arm64/index
ia64/index ia64/index
../loongarch/index loongarch/index
m68k/index m68k/index
../mips/index mips/index
nios2/index nios2/index
openrisc/index openrisc/index
parisc/index parisc/index

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@ -114,7 +114,7 @@ History
port to 2.6.x port to 2.6.x
30-11-2004 Matjaz Breskvar (phoenix@bsemi.com) 30-11-2004 Matjaz Breskvar (phoenix@bsemi.com)
lots of bugfixes and enhancments. lots of bugfixes and enhancements.
added opencores framebuffer driver. added opencores framebuffer driver.
09-10-2010 Jonas Bonn (jonas@southpole.se) 09-10-2010 Jonas Bonn (jonas@southpole.se)

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@ -422,7 +422,7 @@ Configure the guest's AP resources
Configuring the AP resources for a KVM guest will be performed when the Configuring the AP resources for a KVM guest will be performed when the
VFIO_GROUP_NOTIFY_SET_KVM notifier callback is invoked. The notifier VFIO_GROUP_NOTIFY_SET_KVM notifier callback is invoked. The notifier
function is called when userspace connects to KVM. The guest's AP resources are function is called when userspace connects to KVM. The guest's AP resources are
configured via it's APCB by: configured via its APCB by:
* Setting the bits in the APM corresponding to the APIDs assigned to the * Setting the bits in the APM corresponding to the APIDs assigned to the
vfio_ap mediated device via its 'assign_adapter' interface. vfio_ap mediated device via its 'assign_adapter' interface.

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@ -1105,7 +1105,7 @@ The kernel command line should not be located below the real-mode
code, nor should it be located in high memory. code, nor should it be located in high memory.
Sample Boot Configuartion Sample Boot Configuration
========================= =========================
As a sample configuration, assume the following layout of the real As a sample configuration, assume the following layout of the real

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@ -32,7 +32,7 @@ mechanisms to detect split locks and bus locks.
-------------------------------------- --------------------------------------
Beginning with the Tremont Atom CPU split lock operations may raise an Beginning with the Tremont Atom CPU split lock operations may raise an
Alignment Check (#AC) exception when a split lock operation is attemped. Alignment Check (#AC) exception when a split lock operation is attempted.
#DB exception for bus lock detection #DB exception for bus lock detection
------------------------------------ ------------------------------------

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@ -60,7 +60,7 @@ needed for exploiting MDS requires:
data data
The existence of such a construct in the kernel cannot be excluded with The existence of such a construct in the kernel cannot be excluded with
100% certainty, but the complexity involved makes it extremly unlikely. 100% certainty, but the complexity involved makes it extremely unlikely.
There is one exception, which is untrusted BPF. The functionality of There is one exception, which is untrusted BPF. The functionality of
untrusted BPF is limited, but it needs to be thoroughly investigated untrusted BPF is limited, but it needs to be thoroughly investigated

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@ -245,7 +245,7 @@ SGX will likely become unusable because the memory available to SGX is
limited. However, while this may be fatal to SGX, the rest of the kernel limited. However, while this may be fatal to SGX, the rest of the kernel
is unlikely to be impacted and should continue to work. is unlikely to be impacted and should continue to work.
As a result, when this happpens, user should stop running any new As a result, when this happens, user should stop running any new
SGX workloads, (or just any new workloads), and migrate all valuable SGX workloads, (or just any new workloads), and migrate all valuable
workloads. Although a machine reboot can recover all EPC memory, the bug workloads. Although a machine reboot can recover all EPC memory, the bug
should be reported to Linux developers. should be reported to Linux developers.

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@ -23,7 +23,7 @@ doing a Cached (WB) transaction and use the Memory RCW for un-cached
operations. operations.
For systems without an coherent cache controller, non-MX, we always For systems without an coherent cache controller, non-MX, we always
use the memory controllers RCW, thought non-MX controlers likely use the memory controllers RCW, though non-MX controllers likely
support the Internal Operation. support the Internal Operation.
CUSTOMER-WARNING: CUSTOMER-WARNING:

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@ -209,7 +209,7 @@ will require extra work due to the application tag.
sector must be set, and the bio should have all data pages sector must be set, and the bio should have all data pages
added. It is up to the caller to ensure that the bio does not added. It is up to the caller to ensure that the bio does not
change while I/O is in progress. change while I/O is in progress.
Complete bio with error if prepare failed for some reson. Complete bio with error if prepare failed for some reason.
5.3 Passing Existing Integrity Metadata 5.3 Passing Existing Integrity Metadata

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@ -238,7 +238,7 @@ The's IO is assigned by a unique tag, which is 1:1 mapping with IO
request of ``/dev/ublkb*``. request of ``/dev/ublkb*``.
UAPI structure of ``ublksrv_io_desc`` is defined for describing each IO from UAPI structure of ``ublksrv_io_desc`` is defined for describing each IO from
the driver. A fixed mmaped area (array) on ``/dev/ublkc*`` is provided for the driver. A fixed mmapped area (array) on ``/dev/ublkc*`` is provided for
exporting IO info to the server; such as IO offset, length, OP/flags and exporting IO info to the server; such as IO offset, length, OP/flags and
buffer address. Each ``ublksrv_io_desc`` instance can be indexed via queue id buffer address. Each ``ublksrv_io_desc`` instance can be indexed via queue id
and IO tag directly. and IO tag directly.

View File

@ -364,7 +364,7 @@ can be used to query the contents of cpumasks.
---- ----
Some example usages of these querying kfuncs were shown above. We will not Some example usages of these querying kfuncs were shown above. We will not
replicate those exmaples here. Note, however, that all of the aforementioned replicate those examples here. Note, however, that all of the aforementioned
kfuncs are tested in `tools/testing/selftests/bpf/progs/cpumask_success.c`_, so kfuncs are tested in `tools/testing/selftests/bpf/progs/cpumask_success.c`_, so
please take a look there if you're looking for more examples of how they can be please take a look there if you're looking for more examples of how they can be
used. used.

View File

@ -23,7 +23,7 @@ Introduction
The BPF map API has historically been the main way to expose data structures The BPF map API has historically been the main way to expose data structures
of various types for use within BPF programs. Some data structures fit naturally of various types for use within BPF programs. Some data structures fit naturally
with the map API (HASH, ARRAY), others less so. Consequentially, programs with the map API (HASH, ARRAY), others less so. Consequently, programs
interacting with the latter group of data structures can be hard to parse interacting with the latter group of data structures can be hard to parse
for kernel programmers without previous BPF experience. for kernel programmers without previous BPF experience.

View File

@ -264,7 +264,7 @@ The following control flow is implemented (simplified excerpt)::
desc->irq_data.chip->irq_unmask(); desc->irq_data.chip->irq_unmask();
desc->status &= ~pending; desc->status &= ~pending;
handle_irq_event(desc->action); handle_irq_event(desc->action);
} while (status & pending); } while (desc->status & pending);
desc->status &= ~running; desc->status &= ~running;

View File

@ -8,7 +8,7 @@ title: Ingenic SoCs Timer/Counter Unit (TCU)
description: | description: |
For a description of the TCU hardware and drivers, have a look at For a description of the TCU hardware and drivers, have a look at
Documentation/mips/ingenic-tcu.rst. Documentation/arch/mips/ingenic-tcu.rst.
maintainers: maintainers:
- Paul Cercueil <paul@crapouillou.net> - Paul Cercueil <paul@crapouillou.net>

View File

@ -151,9 +151,9 @@ named ``Return``.
line breaks, so if you try to format some text nicely, as in:: line breaks, so if you try to format some text nicely, as in::
* Return: * Return:
* 0 - OK * %0 - OK
* -EINVAL - invalid argument * %-EINVAL - invalid argument
* -ENOMEM - out of memory * %-ENOMEM - out of memory
this will all run together and produce:: this will all run together and produce::
@ -163,8 +163,8 @@ named ``Return``.
ReST list, e. g.:: ReST list, e. g.::
* Return: * Return:
* * 0 - OK to runtime suspend the device * * %0 - OK to runtime suspend the device
* * -EBUSY - Device should not be runtime suspended * * %-EBUSY - Device should not be runtime suspended
#) If the descriptive text you provide has lines that begin with #) If the descriptive text you provide has lines that begin with
some phrase followed by a colon, each of those phrases will be taken some phrase followed by a colon, each of those phrases will be taken

View File

@ -15,8 +15,8 @@ Driver device table
:no-identifiers: pci_device_id :no-identifiers: pci_device_id
Delaying, scheduling, and timer routines Delaying and scheduling routines
---------------------------------------- --------------------------------
.. kernel-doc:: include/linux/sched.h .. kernel-doc:: include/linux/sched.h
:internal: :internal:
@ -33,16 +33,16 @@ Delaying, scheduling, and timer routines
.. kernel-doc:: include/linux/completion.h .. kernel-doc:: include/linux/completion.h
:internal: :internal:
.. kernel-doc:: kernel/time/timer.c Time and timer routines
:export: -----------------------
Wait queues and Wake events .. kernel-doc:: include/linux/jiffies.h
---------------------------
.. kernel-doc:: include/linux/wait.h
:internal: :internal:
.. kernel-doc:: kernel/sched/wait.c .. kernel-doc:: kernel/time/time.c
:export:
.. kernel-doc:: kernel/time/timer.c
:export: :export:
High-resolution timers High-resolution timers
@ -57,6 +57,15 @@ High-resolution timers
.. kernel-doc:: kernel/time/hrtimer.c .. kernel-doc:: kernel/time/hrtimer.c
:export: :export:
Wait queues and Wake events
---------------------------
.. kernel-doc:: include/linux/wait.h
:internal:
.. kernel-doc:: kernel/sched/wait.c
:export:
Internal Functions Internal Functions
------------------ ------------------

View File

@ -8,12 +8,24 @@ The Basic Device Driver-Model Structures
:internal: :internal:
:no-identifiers: device_link_state :no-identifiers: device_link_state
.. kernel-doc:: include/linux/device/bus.h
:identifiers: bus_type bus_notifier_event
.. kernel-doc:: include/linux/device/class.h
:identifiers: class
.. kernel-doc:: include/linux/device/driver.h
:identifiers: probe_type device_driver
Device Drivers Base Device Drivers Base
------------------- -------------------
.. kernel-doc:: drivers/base/init.c .. kernel-doc:: drivers/base/init.c
:internal: :internal:
.. kernel-doc:: include/linux/device/driver.h
:no-identifiers: probe_type device_driver
.. kernel-doc:: drivers/base/driver.c .. kernel-doc:: drivers/base/driver.c
:export: :export:
@ -23,6 +35,9 @@ Device Drivers Base
.. kernel-doc:: drivers/base/syscore.c .. kernel-doc:: drivers/base/syscore.c
:export: :export:
.. kernel-doc:: include/linux/device/class.h
:no-identifiers: class
.. kernel-doc:: drivers/base/class.c .. kernel-doc:: drivers/base/class.c
:export: :export:
@ -41,6 +56,9 @@ Device Drivers Base
.. kernel-doc:: drivers/base/platform.c .. kernel-doc:: drivers/base/platform.c
:export: :export:
.. kernel-doc:: include/linux/device/bus.h
:no-identifiers: bus_type bus_notifier_event
.. kernel-doc:: drivers/base/bus.c .. kernel-doc:: drivers/base/bus.c
:export: :export:

View File

@ -243,7 +243,7 @@ proc entries
Error Injectable Functions Error Injectable Functions
-------------------------- --------------------------
This part is for the kenrel developers considering to add a function to This part is for the kernel developers considering to add a function to
ALLOW_ERROR_INJECTION() macro. ALLOW_ERROR_INJECTION() macro.
Requirements for the Error Injectable Functions Requirements for the Error Injectable Functions

View File

@ -9,7 +9,7 @@ works:
- userspace app like Xfbdev mmaps framebuffer - userspace app like Xfbdev mmaps framebuffer
- deferred IO and driver sets up fault and page_mkwrite handlers - deferred IO and driver sets up fault and page_mkwrite handlers
- userspace app tries to write to mmaped vaddress - userspace app tries to write to mmapped vaddress
- we get pagefault and reach fault handler - we get pagefault and reach fault handler
- fault handler finds and returns physical page - fault handler finds and returns physical page
- we get page_mkwrite where we add this page to a list - we get page_mkwrite where we add this page to a list

View File

@ -31,5 +31,5 @@ Missing Features
================ ================
(alias TODO list) (alias TODO list)
* 2D acceleratrion * 2D acceleration
* dual-head support * dual-head support

View File

@ -73,7 +73,7 @@ Module insertion
the device will be /dev/fb0. You can check this by doing a the device will be /dev/fb0. You can check this by doing a
cat /proc/fb. You can find a copy of con2fb in tools/ directory. cat /proc/fb. You can find a copy of con2fb in tools/ directory.
if you don't have another fb device, this step is superfluous, if you don't have another fb device, this step is superfluous,
as the console subsystem automagicaly binds ttys to the fb. as the console subsystem automagically binds ttys to the fb.
#. switch to the virtual console you just mapped. "tadaaa" ... #. switch to the virtual console you just mapped. "tadaaa" ...
Module removal Module removal

View File

@ -1,7 +1,7 @@
# #
# Feature name: thread-info-in-task # Feature name: thread-info-in-task
# Kconfig: THREAD_INFO_IN_TASK # Kconfig: THREAD_INFO_IN_TASK
# description: arch makes use of the core kernel facility to embedd thread_info in task_struct # description: arch makes use of the core kernel facility to embed thread_info in task_struct
# #
----------------------- -----------------------
| arch |status| | arch |status|

View File

@ -13,7 +13,7 @@
| csky: | ok | | csky: | ok |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | TODO | | ia64: | TODO |
| loongarch: | TODO | | loongarch: | ok |
| m68k: | TODO | | m68k: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | TODO | | mips: | TODO |

View File

@ -13,7 +13,7 @@
| csky: | ok | | csky: | ok |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | ok | | ia64: | ok |
| loongarch: | TODO | | loongarch: | ok |
| m68k: | TODO | | m68k: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | ok | | mips: | ok |

View File

@ -13,7 +13,7 @@
| csky: | ok | | csky: | ok |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | ok | | ia64: | ok |
| loongarch: | TODO | | loongarch: | ok |
| m68k: | TODO | | m68k: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | ok | | mips: | ok |

View File

@ -13,7 +13,7 @@
| csky: | ok | | csky: | ok |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | TODO | | ia64: | TODO |
| loongarch: | TODO | | loongarch: | ok |
| m68k: | TODO | | m68k: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | ok | | mips: | ok |

View File

@ -13,7 +13,7 @@
| csky: | ok | | csky: | ok |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | TODO | | ia64: | TODO |
| loongarch: | TODO | | loongarch: | ok |
| m68k: | TODO | | m68k: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | ok | | mips: | ok |

View File

@ -19,7 +19,7 @@
| mips: | ok | | mips: | ok |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | ok | | openrisc: | ok |
| parisc: | TODO | | parisc: | ok |
| powerpc: | ok | | powerpc: | ok |
| riscv: | ok | | riscv: | ok |
| s390: | ok | | s390: | ok |

View File

@ -1,6 +1,7 @@
# #
# Feature name: ELF-ASLR # Feature name: ELF-ASLR
# Kconfig: ARCH_HAS_ELF_RANDOMIZE # Kconfig: ARCH_HAS_ELF_RANDOMIZE
# Kconfig: ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT
# description: arch randomizes the stack, heap and binary images of ELF binaries # description: arch randomizes the stack, heap and binary images of ELF binaries
# #
----------------------- -----------------------
@ -10,10 +11,10 @@
| arc: | TODO | | arc: | TODO |
| arm: | ok | | arm: | ok |
| arm64: | ok | | arm64: | ok |
| csky: | TODO | | csky: | ok |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | TODO | | ia64: | TODO |
| loongarch: | TODO | | loongarch: | ok |
| m68k: | TODO | | m68k: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | ok | | mips: | ok |

View File

@ -79,7 +79,7 @@ Options
cache=mode specifies a caching policy. By default, no caches are used. cache=mode specifies a caching policy. By default, no caches are used.
The mode can be specified as a bitmask or by using one of the The mode can be specified as a bitmask or by using one of the
prexisting common 'shortcuts'. preexisting common 'shortcuts'.
The bitmask is described below: (unspecified bits are reserved) The bitmask is described below: (unspecified bits are reserved)
========== ==================================================== ========== ====================================================

View File

@ -44,7 +44,7 @@ options::
CONFIG_AF_RXRPC - The RxRPC protocol transport CONFIG_AF_RXRPC - The RxRPC protocol transport
CONFIG_RXKAD - The RxRPC Kerberos security handler CONFIG_RXKAD - The RxRPC Kerberos security handler
CONFIG_AFS - The AFS filesystem CONFIG_AFS_FS - The AFS filesystem
Additionally, the following can be turned on to aid debugging:: Additionally, the following can be turned on to aid debugging::

View File

@ -106,8 +106,8 @@ iocharset=xxx Use xxx as the name of the NLS translation table.
debug The driver will output debugging information to the syslog. debug The driver will output debugging information to the syslog.
============= =========================================================== ============= ===========================================================
How to Get Lastest Version How to Get Latest Version
========================== =========================
The latest version is currently available at: The latest version is currently available at:
<http://befs-driver.sourceforge.net/> <http://befs-driver.sourceforge.net/>

View File

@ -416,7 +416,7 @@ process is the target of an operation by some other process (SIGKILL for
example). example).
The subjective security holds the active security properties of a process, and The subjective security holds the active security properties of a process, and
may be overridden. This is not seen externally, and is used whan a process may be overridden. This is not seen externally, and is used when a process
acts upon another object, for example SIGKILLing another process or opening a acts upon another object, for example SIGKILLing another process or opening a
file. file.

View File

@ -59,7 +59,7 @@ A filesystem would typically have a volume cookie for each superblock.
The filesystem then acquires a cookie for each file within that volume using an The filesystem then acquires a cookie for each file within that volume using an
object key. Object keys are binary blobs and only need to be unique within object key. Object keys are binary blobs and only need to be unique within
their parent volume. The cache backend is reponsible for rendering the binary their parent volume. The cache backend is responsible for rendering the binary
blob into something it can use and may employ hash tables, trees or whatever to blob into something it can use and may employ hash tables, trees or whatever to
improve its ability to find an object. This is transparent to the network improve its ability to find an object. This is transparent to the network
filesystem. filesystem.
@ -91,7 +91,7 @@ actually required and it can use the fscache I/O API directly.
Volume Registration Volume Registration
=================== ===================
The first step for a network filsystem is to acquire a volume cookie for the The first step for a network filesystem is to acquire a volume cookie for the
volume it wants to access:: volume it wants to access::
struct fscache_volume * struct fscache_volume *
@ -119,7 +119,7 @@ is provided. If the coherency data doesn't match, the entire cache volume will
be invalidated. be invalidated.
This function can return errors such as EBUSY if the volume key is already in This function can return errors such as EBUSY if the volume key is already in
use by an acquired volume or ENOMEM if an allocation failure occured. It may use by an acquired volume or ENOMEM if an allocation failure occurred. It may
also return a NULL volume cookie if fscache is not enabled. It is safe to also return a NULL volume cookie if fscache is not enabled. It is safe to
pass a NULL cookie to any function that takes a volume cookie. This will pass a NULL cookie to any function that takes a volume cookie. This will
cause that function to do nothing. cause that function to do nothing.

View File

@ -253,7 +253,7 @@ to be used.
If binary attribute is readable and the config_item provides a If binary attribute is readable and the config_item provides a
ct_item_ops->read_bin_attribute() method, that method will be called ct_item_ops->read_bin_attribute() method, that method will be called
whenever userspace asks for a read(2) on the attribute. The converse whenever userspace asks for a read(2) on the attribute. The converse
will happen for write(2). The reads/writes are bufferred so only a will happen for write(2). The reads/writes are buffered so only a
single read/write will occur; the attributes' need not concern itself single read/write will occur; the attributes' need not concern itself
with it. with it.

View File

@ -291,7 +291,7 @@ The DAX code does not work correctly on architectures which have virtually
mapped caches such as ARM, MIPS and SPARC. mapped caches such as ARM, MIPS and SPARC.
Calling :c:func:`get_user_pages()` on a range of user memory that has been Calling :c:func:`get_user_pages()` on a range of user memory that has been
mmaped from a `DAX` file will fail when there are no 'struct page' to describe mmapped from a `DAX` file will fail when there are no 'struct page' to describe
those pages. This problem has been addressed in some device drivers those pages. This problem has been addressed in some device drivers
by adding optional struct page support for pages under the control of by adding optional struct page support for pages under the control of
the driver (see `CONFIG_NVDIMM_PFN` in ``drivers/nvdimm`` for an example of the driver (see `CONFIG_NVDIMM_PFN` in ``drivers/nvdimm`` for an example of

View File

@ -5,8 +5,8 @@ The Devpts Filesystem
===================== =====================
Each mount of the devpts filesystem is now distinct such that ptys Each mount of the devpts filesystem is now distinct such that ptys
and their indicies allocated in one mount are independent from ptys and their indices allocated in one mount are independent from ptys
and their indicies in all other mounts. and their indices in all other mounts.
All mounts of the devpts filesystem now create a ``/dev/pts/ptmx`` node All mounts of the devpts filesystem now create a ``/dev/pts/ptmx`` node
with permissions ``0000``. with permissions ``0000``.

View File

@ -772,7 +772,7 @@ The ``s_default_mount_opts`` field is any combination of the following:
* - 0x0010 * - 0x0010
- Do not support 32-bit UIDs. (EXT4_DEFM_UID16) - Do not support 32-bit UIDs. (EXT4_DEFM_UID16)
* - 0x0020 * - 0x0020
- All data and metadata are commited to the journal. - All data and metadata are committed to the journal.
(EXT4_DEFM_JMODE_DATA) (EXT4_DEFM_JMODE_DATA)
* - 0x0040 * - 0x0040
- All data are flushed to the disk before metadata are committed to the - All data are flushed to the disk before metadata are committed to the

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