Merge tag 'input-for-v6.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fix from Dmitry Torokhov:
- a fix for Cypress PS/2 touchpad for regression introduced in 6.11
merge window where a timeout condition is incorrectly reported for
all extended Cypress commands
* tag 'input-for-v6.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: cypress_ps2 - fix waiting for command response
diff --git a/.clang-format b/.clang-format
index ccc9b93..252820d 100644
--- a/.clang-format
+++ b/.clang-format
@@ -4,7 +4,7 @@
#
# For more information, see:
#
-# Documentation/process/clang-format.rst
+# Documentation/dev-tools/clang-format.rst
# https://clang.llvm.org/docs/ClangFormat.html
# https://clang.llvm.org/docs/ClangFormatStyleOptions.html
#
diff --git a/.editorconfig b/.editorconfig
index 8547733..29a30cc 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -5,7 +5,6 @@
[{*.{awk,c,dts,dtsi,dtso,h,mk,s,S},Kconfig,Makefile,Makefile.*}]
charset = utf-8
end_of_line = lf
-trim_trailing_whitespace = true
insert_final_newline = true
indent_style = tab
indent_size = 8
@@ -13,7 +12,6 @@
[*.{json,py,rs}]
charset = utf-8
end_of_line = lf
-trim_trailing_whitespace = true
insert_final_newline = true
indent_style = space
indent_size = 4
@@ -26,7 +24,6 @@
[*.yaml]
charset = utf-8
end_of_line = lf
-trim_trailing_whitespace = unset
insert_final_newline = true
indent_style = space
indent_size = 2
diff --git a/.gitignore b/.gitignore
index c59dc60..7902adf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -93,6 +93,12 @@
/tar-install/
#
+# pacman files (make pacman-pkg)
+#
+/PKGBUILD
+/pacman/
+
+#
# We don't want to ignore the following even if they are dot-files
#
!.clang-format
diff --git a/.mailmap b/.mailmap
index 980972a..53ebff0 100644
--- a/.mailmap
+++ b/.mailmap
@@ -72,6 +72,8 @@
Andrzej Hajda <andrzej.hajda@intel.com> <a.hajda@samsung.com>
André Almeida <andrealmeid@igalia.com> <andrealmeid@collabora.com>
Andy Adamson <andros@citi.umich.edu>
+Andy Shevchenko <andy@kernel.org> <andy@smile.org.ua>
+Andy Shevchenko <andy@kernel.org> <ext-andriy.shevchenko@nokia.com>
Anilkumar Kolli <quic_akolli@quicinc.com> <akolli@codeaurora.org>
Anirudh Ghayal <quic_aghayal@quicinc.com> <aghayal@codeaurora.org>
Antoine Tenart <atenart@kernel.org> <antoine.tenart@bootlin.com>
@@ -133,6 +135,7 @@
Cai Huoqing <cai.huoqing@linux.dev> <caihuoqing@baidu.com>
Can Guo <quic_cang@quicinc.com> <cang@codeaurora.org>
Carl Huang <quic_cjhuang@quicinc.com> <cjhuang@codeaurora.org>
+Carlos Bilbao <carlos.bilbao.osdev@gmail.com> <carlos.bilbao@amd.com>
Changbin Du <changbin.du@intel.com> <changbin.du@gmail.com>
Changbin Du <changbin.du@intel.com> <changbin.du@intel.com>
Chao Yu <chao@kernel.org> <chao2.yu@samsung.com>
@@ -163,6 +166,7 @@
Daniel Borkmann <daniel@iogearbox.net> <dxchgb@gmail.com>
David Brownell <david-b@pacbell.net>
David Collins <quic_collinsd@quicinc.com> <collinsd@codeaurora.org>
+David Heidelberg <david@ixit.cz> <d.okias@gmail.com>
David Rheinsberg <david@readahead.eu> <dh.herrmann@gmail.com>
David Rheinsberg <david@readahead.eu> <dh.herrmann@googlemail.com>
David Rheinsberg <david@readahead.eu> <david.rheinsberg@gmail.com>
@@ -216,6 +220,7 @@
Geliang Tang <geliang@kernel.org> <geliangtang@xiaomi.com>
Geliang Tang <geliang@kernel.org> <geliangtang@gmail.com>
Geliang Tang <geliang@kernel.org> <geliangtang@163.com>
+Geliang Tang <geliang@kernel.org> <tanggeliang@kylinos.cn>
Georgi Djakov <djakov@kernel.org> <georgi.djakov@linaro.org>
Gerald Schaefer <gerald.schaefer@linux.ibm.com> <geraldsc@de.ibm.com>
Gerald Schaefer <gerald.schaefer@linux.ibm.com> <gerald.schaefer@de.ibm.com>
@@ -256,6 +261,7 @@
Jakub Kicinski <kuba@kernel.org> <jakub.kicinski@netronome.com>
James Bottomley <jejb@mulgrave.(none)>
James Bottomley <jejb@titanic.il.steeleye.com>
+James Clark <james.clark@linaro.org> <james.clark@arm.com>
James E Wilson <wilson@specifix.com>
James Hogan <jhogan@kernel.org> <james@albanarts.com>
James Hogan <jhogan@kernel.org> <james.hogan@imgtec.com>
@@ -336,10 +342,11 @@
Karthikeyan Periyasamy <quic_periyasa@quicinc.com> <periyasa@codeaurora.org>
Kathiravan T <quic_kathirav@quicinc.com> <kathirav@codeaurora.org>
Kay Sievers <kay.sievers@vrfy.org>
-Kees Cook <keescook@chromium.org> <kees.cook@canonical.com>
-Kees Cook <keescook@chromium.org> <keescook@google.com>
-Kees Cook <keescook@chromium.org> <kees@outflux.net>
-Kees Cook <keescook@chromium.org> <kees@ubuntu.com>
+Kees Cook <kees@kernel.org> <kees.cook@canonical.com>
+Kees Cook <kees@kernel.org> <keescook@chromium.org>
+Kees Cook <kees@kernel.org> <keescook@google.com>
+Kees Cook <kees@kernel.org> <kees@outflux.net>
+Kees Cook <kees@kernel.org> <kees@ubuntu.com>
Keith Busch <kbusch@kernel.org> <keith.busch@intel.com>
Keith Busch <kbusch@kernel.org> <keith.busch@linux.intel.com>
Kenneth W Chen <kenneth.w.chen@intel.com>
@@ -379,7 +386,9 @@
Li Yang <leoyang.li@nxp.com> <leo@zh-kernel.org>
Lior David <quic_liord@quicinc.com> <liord@codeaurora.org>
Lorenzo Pieralisi <lpieralisi@kernel.org> <lorenzo.pieralisi@arm.com>
+Lorenzo Stoakes <lorenzo.stoakes@oracle.com> <lstoakes@gmail.com>
Luca Ceresoli <luca.ceresoli@bootlin.com> <luca@lucaceresoli.net>
+Luca Weiss <luca@lucaweiss.eu> <luca@z3ntu.xyz>
Lukasz Luba <lukasz.luba@arm.com> <l.luba@partner.samsung.com>
Luo Jie <quic_luoj@quicinc.com> <luoj@codeaurora.org>
Maciej W. Rozycki <macro@mips.com> <macro@imgtec.com>
@@ -467,7 +476,10 @@
Naoya Horiguchi <nao.horiguchi@gmail.com> <n-horiguchi@ah.jp.nec.com>
Naoya Horiguchi <nao.horiguchi@gmail.com> <naoya.horiguchi@nec.com>
Nathan Chancellor <nathan@kernel.org> <natechancellor@gmail.com>
-Neeraj Upadhyay <quic_neeraju@quicinc.com> <neeraju@codeaurora.org>
+Naveen N Rao <naveen@kernel.org> <naveen.n.rao@linux.ibm.com>
+Naveen N Rao <naveen@kernel.org> <naveen.n.rao@linux.vnet.ibm.com>
+Neeraj Upadhyay <neeraj.upadhyay@kernel.org> <quic_neeraju@quicinc.com>
+Neeraj Upadhyay <neeraj.upadhyay@kernel.org> <neeraju@codeaurora.org>
Neil Armstrong <neil.armstrong@linaro.org> <narmstrong@baylibre.com>
Nguyen Anh Quynh <aquynh@gmail.com>
Nicholas Piggin <npiggin@gmail.com> <npiggen@suse.de>
@@ -570,7 +582,7 @@
Sascha Hauer <s.hauer@pengutronix.de>
Sahitya Tummala <quic_stummala@quicinc.com> <stummala@codeaurora.org>
Sathishkumar Muruganandam <quic_murugana@quicinc.com> <murugana@codeaurora.org>
-Satya Priya <quic_c_skakit@quicinc.com> <skakit@codeaurora.org>
+Satya Priya <quic_skakitap@quicinc.com> <quic_c_skakit@quicinc.com> <skakit@codeaurora.org>
S.Çağlar Onur <caglar@pardus.org.tr>
Sayali Lokhande <quic_sayalil@quicinc.com> <sayalil@codeaurora.org>
Sean Christopherson <seanjc@google.com> <sean.j.christopherson@intel.com>
@@ -602,6 +614,8 @@
Sricharan Ramabadhran <quic_srichara@quicinc.com> <sricharan@codeaurora.org>
Srinivas Ramana <quic_sramana@quicinc.com> <sramana@codeaurora.org>
Sriram R <quic_srirrama@quicinc.com> <srirrama@codeaurora.org>
+Sriram Yagnaraman <sriram.yagnaraman@ericsson.com> <sriram.yagnaraman@est.tech>
+Stanislav Fomichev <sdf@fomichev.me> <sdf@google.com>
Stefan Wahren <wahrenst@gmx.net> <stefan.wahren@i2se.com>
Stéphane Witzmann <stephane.witzmann@ubpmes.univ-bpclermont.fr>
Stephen Hemminger <stephen@networkplumber.org> <shemminger@linux-foundation.org>
@@ -682,6 +696,7 @@
Vlad Dogaru <ddvlad@gmail.com> <vlad.dogaru@intel.com>
Vladimir Davydov <vdavydov.dev@gmail.com> <vdavydov@parallels.com>
Vladimir Davydov <vdavydov.dev@gmail.com> <vdavydov@virtuozzo.com>
+Weiwen Hu <huweiwen@linux.alibaba.com> <sehuww@mail.scut.edu.cn>
WeiXiong Liao <gmpy.liaowx@gmail.com> <liaoweixiong@allwinnertech.com>
Wen Gong <quic_wgong@quicinc.com> <wgong@codeaurora.org>
Wesley Cheng <quic_wcheng@quicinc.com> <wcheng@codeaurora.org>
diff --git a/CREDITS b/CREDITS
index 0107047..053e5a5 100644
--- a/CREDITS
+++ b/CREDITS
@@ -531,6 +531,13 @@
S: 411 13 Goteborg
S: Sweden
+N: Daniel Bristot de Oliveira
+D: Scheduler contributions, notably: SCHED_DEADLINE
+D: Real-time Linux Analysis
+D: Runtime Verification
+D: OS Noise and Latency Tracers
+S: Brazil and Italy
+
N: Paul Bristow
E: paul@paulbristow.net
W: https://paulbristow.net/linux/idefloppy.html
@@ -796,6 +803,11 @@
D: Ralink rt2x00 WLAN driver
S: Belas, Portugal
+N: Benoît Cousson
+E: bcousson@baylibre.com
+D: TI OMAP Devicetree platforms
+D: TI OMAP HWMOD boards
+
N: Alan Cox
W: http://www.linux.org.uk/diary/
D: Linux Networking (0.99.10->2.0.29)
@@ -1214,6 +1226,10 @@
S: (ask for current address)
S: USA
+N: Larry Finger
+E: Larry.Finger@lwfinger.net
+D: Maintainer of wireless drivers, too many to list here
+
N: Jürgen Fischer
E: fischer@norbit.de
D: Author of Adaptec AHA-152x SCSI driver
@@ -3146,9 +3162,11 @@
S: 13353 Berlin
S: Germany
-N: Gustavo Pimental
+N: Gustavo Pimentel
E: gustavo.pimentel@synopsys.com
D: PCI driver for Synopsys DesignWare
+D: Synopsys DesignWare eDMA driver
+D: Synopsys DesignWare xData traffic generator
N: Emanuel Pirker
E: epirker@edu.uni-klu.ac.at
@@ -4362,6 +4380,10 @@
E: haojian.zhuang@gmail.com
D: MMP support
+N: Tsahee Zidenberg
+E: tsahee@annapurnalabs.com
+D: Annapurna Labs Alpine Architecture
+
N: Richard Zidlicky
E: rz@linux-m68k.org, rdzidlic@geocities.com
W: http://www.geocities.com/rdzidlic
diff --git a/Documentation/ABI/removed/sysfs-firmware-efi-vars b/Documentation/ABI/removed/sysfs-firmware-efi-vars
new file mode 100644
index 0000000..8d97368
--- /dev/null
+++ b/Documentation/ABI/removed/sysfs-firmware-efi-vars
@@ -0,0 +1,12 @@
+What: /sys/firmware/efi/vars
+Date: April 2004, removed March 2023
+Description:
+ This directory exposed interfaces for interacting with
+ EFI variables. For more information on EFI variables,
+ see 'Variable Services' in the UEFI specification
+ (section 7.2 in specification version 2.3 Errata D).
+
+ The 'efivars' sysfs interface was removed in March of 2023,
+ after being considered deprecated no later than September
+ of 2020. Its functionality has been replaced by the
+ 'efivarfs' filesystem.
diff --git a/Documentation/ABI/stable/sysfs-block b/Documentation/ABI/stable/sysfs-block
index 1fe9a55..cea8856f 100644
--- a/Documentation/ABI/stable/sysfs-block
+++ b/Documentation/ABI/stable/sysfs-block
@@ -21,6 +21,59 @@
device is offset from the internal allocation unit's
natural alignment.
+What: /sys/block/<disk>/atomic_write_max_bytes
+Date: February 2024
+Contact: Himanshu Madhani <himanshu.madhani@oracle.com>
+Description:
+ [RO] This parameter specifies the maximum atomic write
+ size reported by the device. This parameter is relevant
+ for merging of writes, where a merged atomic write
+ operation must not exceed this number of bytes.
+ This parameter may be greater than the value in
+ atomic_write_unit_max_bytes as
+ atomic_write_unit_max_bytes will be rounded down to a
+ power-of-two and atomic_write_unit_max_bytes may also be
+ limited by some other queue limits, such as max_segments.
+ This parameter - along with atomic_write_unit_min_bytes
+ and atomic_write_unit_max_bytes - will not be larger than
+ max_hw_sectors_kb, but may be larger than max_sectors_kb.
+
+
+What: /sys/block/<disk>/atomic_write_unit_min_bytes
+Date: February 2024
+Contact: Himanshu Madhani <himanshu.madhani@oracle.com>
+Description:
+ [RO] This parameter specifies the smallest block which can
+ be written atomically with an atomic write operation. All
+ atomic write operations must begin at a
+ atomic_write_unit_min boundary and must be multiples of
+ atomic_write_unit_min. This value must be a power-of-two.
+
+
+What: /sys/block/<disk>/atomic_write_unit_max_bytes
+Date: February 2024
+Contact: Himanshu Madhani <himanshu.madhani@oracle.com>
+Description:
+ [RO] This parameter defines the largest block which can be
+ written atomically with an atomic write operation. This
+ value must be a multiple of atomic_write_unit_min and must
+ be a power-of-two. This value will not be larger than
+ atomic_write_max_bytes.
+
+
+What: /sys/block/<disk>/atomic_write_boundary_bytes
+Date: February 2024
+Contact: Himanshu Madhani <himanshu.madhani@oracle.com>
+Description:
+ [RO] A device may need to internally split an atomic write I/O
+ which straddles a given logical block address boundary. This
+ parameter specifies the size in bytes of the atomic boundary if
+ one is reported by the device. This value must be a
+ power-of-two and at least the size as in
+ atomic_write_unit_max_bytes.
+ Any attempt to merge atomic write I/Os must not result in a
+ merged I/O which crosses this boundary (if any).
+
What: /sys/block/<disk>/diskseq
Date: February 2021
@@ -101,6 +154,16 @@
devices that support receiving integrity metadata.
+What: /sys/block/<disk>/partscan
+Date: May 2024
+Contact: Christoph Hellwig <hch@lst.de>
+Description:
+ The /sys/block/<disk>/partscan files reports if partition
+ scanning is enabled for the disk. It returns "1" if partition
+ scanning is enabled, or "0" if not. The value type is a 32-bit
+ unsigned integer, but only "0" and "1" are valid values.
+
+
What: /sys/block/<disk>/<partition>/alignment_offset
Date: April 2009
Contact: Martin K. Petersen <martin.petersen@oracle.com>
@@ -584,18 +647,6 @@
the data. If no such restriction exists, this file will contain
'0'. This file is writable for testing purposes.
-
-What: /sys/block/<disk>/queue/throttle_sample_time
-Date: March 2017
-Contact: linux-block@vger.kernel.org
-Description:
- [RW] This is the time window that blk-throttle samples data, in
- millisecond. blk-throttle makes decision based on the
- samplings. Lower time means cgroups have more smooth throughput,
- but higher CPU overhead. This exists only when
- CONFIG_BLK_DEV_THROTTLING_LOW is enabled.
-
-
What: /sys/block/<disk>/queue/virt_boundary_mask
Date: April 2021
Contact: linux-block@vger.kernel.org
diff --git a/Documentation/ABI/stable/sysfs-bus-mhi b/Documentation/ABI/stable/sysfs-bus-mhi
index 1a47f9e..8b9698fa 100644
--- a/Documentation/ABI/stable/sysfs-bus-mhi
+++ b/Documentation/ABI/stable/sysfs-bus-mhi
@@ -29,3 +29,16 @@
This can be useful as a method of recovery if the device is
non-responsive, or as a means of loading new firmware as a
system administration task.
+
+What: /sys/bus/mhi/devices/.../trigger_edl
+Date: April 2024
+KernelVersion: 6.10
+Contact: mhi@lists.linux.dev
+Description: Writing a non-zero value to this file will force devices to
+ enter EDL (Emergency Download) mode. This entry only exists for
+ devices capable of entering the EDL mode using the standard EDL
+ triggering mechanism defined in the MHI spec v1.2. Once in EDL
+ mode, the flash programmer image can be downloaded to the
+ device to enter the flash programmer execution environment.
+ This can be useful if user wants to use QDL (Qualcomm Download,
+ which is used to download firmware over EDL) to update firmware.
diff --git a/Documentation/ABI/stable/sysfs-bus-nvmem b/Documentation/ABI/stable/sysfs-bus-nvmem
index c399323..aa89adf 100644
--- a/Documentation/ABI/stable/sysfs-bus-nvmem
+++ b/Documentation/ABI/stable/sysfs-bus-nvmem
@@ -1,6 +1,23 @@
+What: /sys/bus/nvmem/devices/.../force_ro
+Date: June 2024
+KernelVersion: 6.11
+Contact: Marek Vasut <marex@denx.de>
+Description:
+ This read/write attribute allows users to set read-write
+ devices as read-only and back to read-write from userspace.
+ This can be used to unlock and relock write-protection of
+ devices which are generally locked, except during sporadic
+ programming operation.
+ Read returns '0' or '1' for read-write or read-only modes
+ respectively.
+ Write parses one of 'YyTt1NnFf0', or [oO][NnFf] for "on"
+ and "off", i.e. what kstrbool() supports.
+ Note: This file is only present if CONFIG_NVMEM_SYSFS
+ is enabled.
+
What: /sys/bus/nvmem/devices/.../nvmem
Date: July 2015
-KernelVersion: 4.2
+KernelVersion: 4.2
Contact: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Description:
This file allows user to read/write the raw NVMEM contents.
@@ -20,3 +37,14 @@
...
*
0001000
+
+What: /sys/bus/nvmem/devices/.../type
+Date: November 2018
+KernelVersion: 5.0
+Contact: Alexandre Belloni <alexandre.belloni@bootlin.com>
+Description:
+ This read-only attribute allows user to read the NVMEM
+ device type. Supported types are "Unknown", "EEPROM",
+ "OTP", "Battery backed", "FRAM".
+ Note: This file is only present if CONFIG_NVMEM_SYSFS
+ is enabled.
diff --git a/Documentation/ABI/stable/sysfs-class-backlight b/Documentation/ABI/stable/sysfs-class-backlight
index 023fb52..6102d6b 100644
--- a/Documentation/ABI/stable/sysfs-class-backlight
+++ b/Documentation/ABI/stable/sysfs-class-backlight
@@ -3,10 +3,11 @@
KernelVersion: 2.6.12
Contact: Richard Purdie <rpurdie@rpsys.net>
Description:
- Control BACKLIGHT power, values are FB_BLANK_* from fb.h
+ Control BACKLIGHT power, values are compatible with
+ FB_BLANK_* from fb.h
- - FB_BLANK_UNBLANK (0) : power on.
- - FB_BLANK_POWERDOWN (4) : power off
+ - 0 (FB_BLANK_UNBLANK) : power on.
+ - 4 (FB_BLANK_POWERDOWN) : power off
Users: HAL
What: /sys/class/backlight/<backlight>/brightness
diff --git a/Documentation/ABI/stable/sysfs-driver-misc-cp500 b/Documentation/ABI/stable/sysfs-driver-misc-cp500
new file mode 100644
index 0000000..525bd18
--- /dev/null
+++ b/Documentation/ABI/stable/sysfs-driver-misc-cp500
@@ -0,0 +1,25 @@
+What: /sys/devices/pciXXXX:XX/0000:XX:XX.X/0000:XX:XX.X/version
+Date: June 2024
+KernelVersion: 6.11
+Contact: Gerhard Engleder <eg@keba.com>
+Description: Version of the FPGA configuration bitstream as printable string.
+ This file is read only.
+Users: KEBA
+
+What: /sys/devices/pciXXXX:XX/0000:XX:XX.X/0000:XX:XX.X/keep_cfg
+Date: June 2024
+KernelVersion: 6.11
+Contact: Gerhard Engleder <eg@keba.com>
+Description: Flag which signals if FPGA shall keep or reload configuration
+ bitstream on reset. Normal FPGA behavior and default is to keep
+ configuration bitstream and to only reset the configured logic.
+
+ Reloading configuration on reset enables an update of the
+ configuration bitstream with a simple reboot. Otherwise it is
+ necessary to power cycle the device to reload the new
+ configuration bitstream.
+
+ This file is read/write. The values are as follows:
+ 1 = keep configuration bitstream on reset, default
+ 0 = reload configuration bitstream on reset
+Users: KEBA
diff --git a/Documentation/ABI/stable/sysfs-firmware-efi-vars b/Documentation/ABI/stable/sysfs-firmware-efi-vars
deleted file mode 100644
index 46ccd23..0000000
--- a/Documentation/ABI/stable/sysfs-firmware-efi-vars
+++ /dev/null
@@ -1,79 +0,0 @@
-What: /sys/firmware/efi/vars
-Date: April 2004
-Contact: Matt Domsch <Matt_Domsch@dell.com>
-Description:
- This directory exposes interfaces for interactive with
- EFI variables. For more information on EFI variables,
- see 'Variable Services' in the UEFI specification
- (section 7.2 in specification version 2.3 Errata D).
-
- In summary, EFI variables are named, and are classified
- into separate namespaces through the use of a vendor
- GUID. They also have an arbitrary binary value
- associated with them.
-
- The efivars module enumerates these variables and
- creates a separate directory for each one found. Each
- directory has a name of the form "<key>-<vendor guid>"
- and contains the following files:
-
- =============== ========================================
- attributes: A read-only text file enumerating the
- EFI variable flags. Potential values
- include:
-
- EFI_VARIABLE_NON_VOLATILE
- EFI_VARIABLE_BOOTSERVICE_ACCESS
- EFI_VARIABLE_RUNTIME_ACCESS
- EFI_VARIABLE_HARDWARE_ERROR_RECORD
- EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS
-
- See the EFI documentation for an
- explanation of each of these variables.
-
- data: A read-only binary file that can be read
- to attain the value of the EFI variable
-
- guid: The vendor GUID of the variable. This
- should always match the GUID in the
- variable's name.
-
- raw_var: A binary file that can be read to obtain
- a structure that contains everything
- there is to know about the variable.
- For structure definition see "struct
- efi_variable" in the kernel sources.
-
- This file can also be written to in
- order to update the value of a variable.
- For this to work however, all fields of
- the "struct efi_variable" passed must
- match byte for byte with the structure
- read out of the file, save for the value
- portion.
-
- **Note** the efi_variable structure
- read/written with this file contains a
- 'long' type that may change widths
- depending on your underlying
- architecture.
-
- size: As ASCII representation of the size of
- the variable's value.
- =============== ========================================
-
-
- In addition, two other magic binary files are provided
- in the top-level directory and are used for adding and
- removing variables:
-
- =============== ========================================
- new_var: Takes a "struct efi_variable" and
- instructs the EFI firmware to create a
- new variable.
-
- del_var: Takes a "struct efi_variable" and
- instructs the EFI firmware to remove any
- variable that has a matching vendor GUID
- and variable key name.
- =============== ========================================
diff --git a/Documentation/ABI/testing/configfs-tsm b/Documentation/ABI/testing/configfs-tsm
index dd24202..534408b 100644
--- a/Documentation/ABI/testing/configfs-tsm
+++ b/Documentation/ABI/testing/configfs-tsm
@@ -31,6 +31,18 @@
Standardization v2.03 Section 4.1.8.1 MSG_REPORT_REQ.
https://www.amd.com/content/dam/amd/en/documents/epyc-technical-docs/specifications/56421.pdf
+What: /sys/kernel/config/tsm/report/$name/manifestblob
+Date: January, 2024
+KernelVersion: v6.10
+Contact: linux-coco@lists.linux.dev
+Description:
+ (RO) Optional supplemental data that a TSM may emit, visibility
+ of this attribute depends on TSM, and may be empty if no
+ manifest data is available.
+
+ See 'service_provider' for information on the format of the
+ manifest blob.
+
What: /sys/kernel/config/tsm/report/$name/provider
Date: September, 2023
KernelVersion: v6.7
@@ -80,3 +92,54 @@
Description:
(RO) Indicates the minimum permissible value that can be written
to @privlevel.
+
+What: /sys/kernel/config/tsm/report/$name/service_provider
+Date: January, 2024
+KernelVersion: v6.10
+Contact: linux-coco@lists.linux.dev
+Description:
+ (WO) Attribute is visible if a TSM implementation provider
+ supports the concept of attestation reports from a service
+ provider for TVMs, like SEV-SNP running under an SVSM.
+ Specifying the service provider via this attribute will create
+ an attestation report as specified by the service provider.
+ The only currently supported service provider is "svsm".
+
+ For the "svsm" service provider, see the Secure VM Service Module
+ for SEV-SNP Guests v1.00 Section 7. For the doc, search for
+ "site:amd.com "Secure VM Service Module for SEV-SNP
+ Guests", docID: 58019"
+
+What: /sys/kernel/config/tsm/report/$name/service_guid
+Date: January, 2024
+KernelVersion: v6.10
+Contact: linux-coco@lists.linux.dev
+Description:
+ (WO) Attribute is visible if a TSM implementation provider
+ supports the concept of attestation reports from a service
+ provider for TVMs, like SEV-SNP running under an SVSM.
+ Specifying an empty/null GUID (00000000-0000-0000-0000-000000)
+ requests all active services within the service provider be
+ part of the attestation report. Specifying a GUID request
+ an attestation report of just the specified service using the
+ manifest form specified by the service_manifest_version
+ attribute.
+
+ See 'service_provider' for information on the format of the
+ service guid.
+
+What: /sys/kernel/config/tsm/report/$name/service_manifest_version
+Date: January, 2024
+KernelVersion: v6.10
+Contact: linux-coco@lists.linux.dev
+Description:
+ (WO) Attribute is visible if a TSM implementation provider
+ supports the concept of attestation reports from a service
+ provider for TVMs, like SEV-SNP running under an SVSM.
+ Indicates the service manifest version requested for the
+ attestation report (default 0). If this field is not set by
+ the user, the default manifest version of the service (the
+ service's initial/first manifest version) is returned.
+
+ See 'service_provider' for information on the format of the
+ service manifest version.
diff --git a/Documentation/ABI/testing/debugfs-cxl b/Documentation/ABI/testing/debugfs-cxl
index c61f9b8..12488c1 100644
--- a/Documentation/ABI/testing/debugfs-cxl
+++ b/Documentation/ABI/testing/debugfs-cxl
@@ -14,9 +14,10 @@
event to its internal Informational Event log, updates the
Event Status register, and if configured, interrupts the host.
It is not an error to inject poison into an address that
- already has poison present and no error is returned. The
- inject_poison attribute is only visible for devices supporting
- the capability.
+ already has poison present and no error is returned. If the
+ device returns 'Inject Poison Limit Reached' an -EBUSY error
+ is returned to the user. The inject_poison attribute is only
+ visible for devices supporting the capability.
What: /sys/kernel/debug/memX/clear_poison
diff --git a/Documentation/ABI/testing/debugfs-driver-habanalabs b/Documentation/ABI/testing/debugfs-driver-habanalabs
index a7a432d..3318a14 100644
--- a/Documentation/ABI/testing/debugfs-driver-habanalabs
+++ b/Documentation/ABI/testing/debugfs-driver-habanalabs
@@ -217,7 +217,7 @@
and virtual address. The user should write the ASID and VA into
the file and then read the file to get the result.
e.g. to display info about VA 0x1000 for ASID 1 you need to do:
- echo "1 0x1000" > /sys/kernel/debug/accel/0/mmu
+ echo "1 0x1000" > /sys/kernel/debug/accel/<parent_device>/mmu
What: /sys/kernel/debug/accel/<parent_device>/mmu_error
Date: Mar 2021
@@ -226,8 +226,8 @@
Description: Check and display page fault or access violation mmu errors for
all MMUs specified in mmu_cap_mask.
e.g. to display error info for MMU hw cap bit 9, you need to do:
- echo "0x200" > /sys/kernel/debug/accel/0/mmu_error
- cat /sys/kernel/debug/accel/0/mmu_error
+ echo "0x200" > /sys/kernel/debug/accel/<parent_device>/mmu_error
+ cat /sys/kernel/debug/accel/<parent_device>/mmu_error
What: /sys/kernel/debug/accel/<parent_device>/monitor_dump
Date: Mar 2022
@@ -253,6 +253,12 @@
When the write is finished, the user can read the "monitor_dump"
blob
+What: /sys/kernel/debug/accel/<parent_device>/server_type
+Date: Feb 2024
+KernelVersion: 6.11
+Contact: trisin@habana.ai
+Description: Exposes the device's server type, maps to enum hl_server_type.
+
What: /sys/kernel/debug/accel/<parent_device>/set_power_state
Date: Jan 2019
KernelVersion: 5.1
diff --git a/Documentation/ABI/testing/debugfs-msi-wmi-platform b/Documentation/ABI/testing/debugfs-msi-wmi-platform
new file mode 100644
index 0000000..71f9992
--- /dev/null
+++ b/Documentation/ABI/testing/debugfs-msi-wmi-platform
@@ -0,0 +1,14 @@
+What: /sys/kernel/debug/msi-wmi-platform-<wmi_device_name>/*
+Date: April 2024
+KernelVersion: 6.10
+Contact: Armin Wolf <W_Armin@gmx.de>
+Description:
+ This file allows to execute the associated WMI method with the same name.
+
+ To start the execution, write a buffer containing the method arguments
+ at file offset 0. Partial writes or writes at a different offset are not
+ supported.
+
+ The buffer returned by the WMI method can then be read from the file.
+
+ See Documentation/wmi/devices/msi-wmi-platform.rst for details.
diff --git a/Documentation/ABI/testing/debugfs-tpmi b/Documentation/ABI/testing/debugfs-tpmi
index 597f0475..c493a14 100644
--- a/Documentation/ABI/testing/debugfs-tpmi
+++ b/Documentation/ABI/testing/debugfs-tpmi
@@ -29,3 +29,12 @@
echo 0,0x20,0xff > mem_write
echo 1,64,64 > mem_write
Users: Debugging, any user space test suite
+
+What: /sys/kernel/debug/tpmi-<n>/plr/domain<n>/status
+Date: Aug 2024
+KernelVersion: 6.11
+Contact: Tero Kristo <tero.kristo@linux.intel.com>
+Description:
+Shows the currently active Performance Limit Reasons for die level and the
+individual CPUs under the die. The contents of this file are sticky, and
+clearing all the statuses can be done by writing "0\n" to this file.
diff --git a/Documentation/ABI/testing/sysfs-bus-auxiliary b/Documentation/ABI/testing/sysfs-bus-auxiliary
new file mode 100644
index 0000000..cc85607
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-auxiliary
@@ -0,0 +1,9 @@
+What: /sys/bus/auxiliary/devices/.../irqs/
+Date: April, 2024
+Contact: Shay Drory <shayd@nvidia.com>
+Description:
+ The /sys/devices/.../irqs directory contains a variable set of
+ files, with each file is named as irq number similar to PCI PF
+ or VF's irq number located in msi_irqs directory.
+ These irq files are added and removed dynamically when an IRQ
+ is requested and freed respectively for the PCI SF.
diff --git a/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm3x b/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm3x
index 3acf7fc..271b57c 100644
--- a/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm3x
+++ b/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm3x
@@ -22,7 +22,7 @@
Description: (RW) Used in conjunction with @addr_idx. Specifies
characteristics about the address comparator being configure,
for example the access type, the kind of instruction to trace,
- processor contect ID to trigger on, etc. Individual fields in
+ processor context ID to trigger on, etc. Individual fields in
the access type register may vary on the version of the trace
entity.
diff --git a/Documentation/ABI/testing/sysfs-bus-coresight-devices-tmc b/Documentation/ABI/testing/sysfs-bus-coresight-devices-tmc
index 96aafa6..339cec3 100644
--- a/Documentation/ABI/testing/sysfs-bus-coresight-devices-tmc
+++ b/Documentation/ABI/testing/sysfs-bus-coresight-devices-tmc
@@ -97,7 +97,7 @@
KernelVersion: 6.7
Contact: Anshuman Khandual <anshuman.khandual@arm.com>
Description: (Read) Shows all supported Coresight TMC-ETR buffer modes available
- for the users to configure explicitly. This file is avaialble only
+ for the users to configure explicitly. This file is available only
for TMC ETR devices.
What: /sys/bus/coresight/devices/<memory_map>.tmc/buf_mode_preferred
diff --git a/Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm b/Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm
index b4d0fc8..bf710ea 100644
--- a/Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm
+++ b/Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm
@@ -244,7 +244,7 @@
Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com>
Description:
(RW) Read or write the status of timestamp upon all interface.
- Only value 0 and 1 can be written to this node. Set this node to 1 to requeset
+ Only value 0 and 1 can be written to this node. Set this node to 1 to request
timestamp to all trace packet.
Accepts only one of the 2 values - 0 or 1.
0 : Disable the timestamp of all trace packets.
diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-events b/Documentation/ABI/testing/sysfs-bus-event_source-devices-events
index 77de58d..e7efeab 100644
--- a/Documentation/ABI/testing/sysfs-bus-event_source-devices-events
+++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-events
@@ -37,6 +37,12 @@
performance monitoring event supported by the <pmu>. The name
of the file is the name of the event.
+ As performance monitoring event names are case
+ insensitive in the perf tool, the perf tool only looks
+ for lower or upper case event names in sysfs to avoid
+ scanning the directory. It is therefore required the
+ name of the event here is either lower or upper case.
+
File contents:
<term>[=<value>][,<term>[=<value>]]...
diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-hisi_ptt b/Documentation/ABI/testing/sysfs-bus-event_source-devices-hisi_ptt
new file mode 100644
index 0000000..1119766
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-hisi_ptt
@@ -0,0 +1,113 @@
+What: /sys/bus/event_source/devices/hisi_ptt<sicl_id>_<core_id>/tune
+Date: October 2022
+KernelVersion: 6.1
+Contact: Yicong Yang <yangyicong@hisilicon.com>
+Description: This directory contains files for tuning the PCIe link
+ parameters(events). Each file is named after the event
+ of the PCIe link.
+
+ See Documentation/trace/hisi-ptt.rst for more information.
+
+What: /sys/bus/event_source/devices/hisi_ptt<sicl_id>_<core_id>/tune/qos_tx_cpl
+Date: October 2022
+KernelVersion: 6.1
+Contact: Yicong Yang <yangyicong@hisilicon.com>
+Description: (RW) Controls the weight of Tx completion TLPs, which influence
+ the proportion of outbound completion TLPs on the PCIe link.
+ The available tune data is [0, 1, 2]. Writing a negative value
+ will return an error, and out of range values will be converted
+ to 2. The value indicates a probable level of the event.
+
+What: /sys/bus/event_source/devices/hisi_ptt<sicl_id>_<core_id>/tune/qos_tx_np
+Date: October 2022
+KernelVersion: 6.1
+Contact: Yicong Yang <yangyicong@hisilicon.com>
+Description: (RW) Controls the weight of Tx non-posted TLPs, which influence
+ the proportion of outbound non-posted TLPs on the PCIe link.
+ The available tune data is [0, 1, 2]. Writing a negative value
+ will return an error, and out of range values will be converted
+ to 2. The value indicates a probable level of the event.
+
+What: /sys/bus/event_source/devices/hisi_ptt<sicl_id>_<core_id>/tune/qos_tx_p
+Date: October 2022
+KernelVersion: 6.1
+Contact: Yicong Yang <yangyicong@hisilicon.com>
+Description: (RW) Controls the weight of Tx posted TLPs, which influence the
+ proportion of outbound posted TLPs on the PCIe link.
+ The available tune data is [0, 1, 2]. Writing a negative value
+ will return an error, and out of range values will be converted
+ to 2. The value indicates a probable level of the event.
+
+What: /sys/bus/event_source/devices/hisi_ptt<sicl_id>_<core_id>/tune/rx_alloc_buf_level
+Date: October 2022
+KernelVersion: 6.1
+Contact: Yicong Yang <yangyicong@hisilicon.com>
+Description: (RW) Control the allocated buffer watermark for inbound packets.
+ The packets will be stored in the buffer first and then transmitted
+ either when the watermark reached or when timed out.
+ The available tune data is [0, 1, 2]. Writing a negative value
+ will return an error, and out of range values will be converted
+ to 2. The value indicates a probable level of the event.
+
+What: /sys/bus/event_source/devices/hisi_ptt<sicl_id>_<core_id>/tune/tx_alloc_buf_level
+Date: October 2022
+KernelVersion: 6.1
+Contact: Yicong Yang <yangyicong@hisilicon.com>
+Description: (RW) Control the allocated buffer watermark of outbound packets.
+ The packets will be stored in the buffer first and then transmitted
+ either when the watermark reached or when timed out.
+ The available tune data is [0, 1, 2]. Writing a negative value
+ will return an error, and out of range values will be converted
+ to 2. The value indicates a probable level of the event.
+
+What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/root_port_filters
+Date: May 2023
+KernelVersion: 6.5
+Contact: Yicong Yang <yangyicong@hisilicon.com>
+Description: This directory contains the files providing the PCIe Root Port filters
+ information used for PTT trace. Each file is named after the supported
+ Root Port device name <domain>:<bus>:<device>.<function>.
+
+ See the description of the "filter" in Documentation/trace/hisi-ptt.rst
+ for more information.
+
+What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/root_port_filters/multiselect
+Date: May 2023
+KernelVersion: 6.5
+Contact: Yicong Yang <yangyicong@hisilicon.com>
+Description: (Read) Indicates if this kind of filter can be selected at the same
+ time as others filters, or must be used on it's own. 1 indicates
+ the former case and 0 indicates the latter.
+
+What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/root_port_filters/<bdf>
+Date: May 2023
+KernelVersion: 6.5
+Contact: Yicong Yang <yangyicong@hisilicon.com>
+Description: (Read) Indicates the filter value of this Root Port filter, which
+ can be used to control the TLP headers to trace by the PTT trace.
+
+What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/requester_filters
+Date: May 2023
+KernelVersion: 6.5
+Contact: Yicong Yang <yangyicong@hisilicon.com>
+Description: This directory contains the files providing the PCIe Requester filters
+ information used for PTT trace. Each file is named after the supported
+ Endpoint device name <domain>:<bus>:<device>.<function>.
+
+ See the description of the "filter" in Documentation/trace/hisi-ptt.rst
+ for more information.
+
+What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/requester_filters/multiselect
+Date: May 2023
+KernelVersion: 6.5
+Contact: Yicong Yang <yangyicong@hisilicon.com>
+Description: (Read) Indicates if this kind of filter can be selected at the same
+ time as others filters, or must be used on it's own. 1 indicates
+ the former case and 0 indicates the latter.
+
+What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/requester_filters/<bdf>
+Date: May 2023
+KernelVersion: 6.5
+Contact: Yicong Yang <yangyicong@hisilicon.com>
+Description: (Read) Indicates the filter value of this Requester filter, which
+ can be used to control the TLP headers to trace by the PTT trace.
diff --git a/Documentation/ABI/testing/sysfs-bus-i2c-devices-turris-omnia-mcu b/Documentation/ABI/testing/sysfs-bus-i2c-devices-turris-omnia-mcu
new file mode 100644
index 0000000..35a8f6d
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-i2c-devices-turris-omnia-mcu
@@ -0,0 +1,113 @@
+What: /sys/bus/i2c/devices/<mcu_device>/board_revision
+Date: September 2024
+KernelVersion: 6.11
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RO) Contains board revision number.
+
+ Only available if board information is burned in the MCU (older
+ revisions have board information burned in the ATSHA204-A chip).
+
+ Format: %u.
+
+What: /sys/bus/i2c/devices/<mcu_device>/first_mac_address
+Date: September 2024
+KernelVersion: 6.11
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RO) Contains device first MAC address. Each Turris Omnia is
+ allocated 3 MAC addresses. The two additional addresses are
+ computed from the first one by incrementing it.
+
+ Only available if board information is burned in the MCU (older
+ revisions have board information burned in the ATSHA204-A chip).
+
+ Format: %pM.
+
+What: /sys/bus/i2c/devices/<mcu_device>/front_button_mode
+Date: September 2024
+KernelVersion: 6.11
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RW) The front button on the Turris Omnia router can be
+ configured either to change the intensity of all the LEDs on the
+ front panel, or to send the press event to the CPU as an
+ interrupt.
+
+ This file switches between these two modes:
+ - ``mcu`` makes the button press event be handled by the MCU to
+ change the LEDs panel intensity.
+ - ``cpu`` makes the button press event be handled by the CPU.
+
+ Format: %s.
+
+What: /sys/bus/i2c/devices/<mcu_device>/front_button_poweron
+Date: September 2024
+KernelVersion: 6.11
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RW) Newer versions of the microcontroller firmware of the
+ Turris Omnia router support powering off the router into true
+ low power mode. The router can be powered on by pressing the
+ front button.
+
+ This file configures whether front button power on is enabled.
+
+ This file is present only if the power off feature is supported
+ by the firmware.
+
+ Format: %i.
+
+What: /sys/bus/i2c/devices/<mcu_device>/fw_features
+Date: September 2024
+KernelVersion: 6.11
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RO) Newer versions of the microcontroller firmware report the
+ features they support. These can be read from this file. If the
+ MCU firmware is too old, this file reads 0x0.
+
+ Format: 0x%x.
+
+What: /sys/bus/i2c/devices/<mcu_device>/fw_version_hash_application
+Date: September 2024
+KernelVersion: 6.11
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RO) Contains the version hash (commit hash) of the application
+ part of the microcontroller firmware.
+
+ Format: %s.
+
+What: /sys/bus/i2c/devices/<mcu_device>/fw_version_hash_bootloader
+Date: September 2024
+KernelVersion: 6.11
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RO) Contains the version hash (commit hash) of the bootloader
+ part of the microcontroller firmware.
+
+ Format: %s.
+
+What: /sys/bus/i2c/devices/<mcu_device>/mcu_type
+Date: September 2024
+KernelVersion: 6.11
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RO) Contains the microcontroller type (STM32, GD32, MKL).
+
+ Format: %s.
+
+What: /sys/bus/i2c/devices/<mcu_device>/reset_selector
+Date: September 2024
+KernelVersion: 6.11
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RO) Contains the selected factory reset level, determined by
+ how long the rear reset button was held by the user during board
+ reset.
+
+ Format: %i.
+
+What: /sys/bus/i2c/devices/<mcu_device>/serial_number
+Date: September 2024
+KernelVersion: 6.11
+Contact: Marek Behún <kabel@kernel.org>
+Description: (RO) Contains the 64-bit board serial number in hexadecimal
+ format.
+
+ Only available if board information is burned in the MCU (older
+ revisions have board information burned in the ATSHA204-A chip).
+
+ Format: %016X.
diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index 2e6d5eb..7cee78a 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -243,7 +243,8 @@
less measurements. Units after application of scale and offset
are milli degrees Celsius.
-What: /sys/bus/iio/devices/iio:deviceX/in_tempX_input
+What: /sys/bus/iio/devices/iio:deviceX/in_tempY_input
+What: /sys/bus/iio/devices/iio:deviceX/in_temp_input
KernelVersion: 2.6.38
Contact: linux-iio@vger.kernel.org
Description:
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-ad9739a b/Documentation/ABI/testing/sysfs-bus-iio-ad9739a
new file mode 100644
index 0000000..ed59299
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-ad9739a
@@ -0,0 +1,19 @@
+What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_operating_mode
+KernelVersion: 6.9
+Contact: linux-iio@vger.kernel.org
+Description:
+ DAC operating mode. One of the following modes can be selected:
+
+ * normal: This is DAC normal mode.
+ * mixed-mode: In this mode the output is effectively chopped at
+ the DAC sample rate. This has the effect of
+ reducing the power of the fundamental signal while
+ increasing the power of the images centered around
+ the DAC sample rate, thus improving the output
+ power of these images.
+
+What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_operating_mode_available
+KernelVersion: 6.9
+Contact: linux-iio@vger.kernel.org
+Description:
+ Available operating modes.
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-inv_icm42600 b/Documentation/ABI/testing/sysfs-bus-iio-inv_icm42600
new file mode 100644
index 0000000..7eeacfb
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-inv_icm42600
@@ -0,0 +1,18 @@
+What: /sys/bus/iio/devices/iio:deviceX/in_accel_power_mode
+KernelVersion: 6.11
+Contact: linux-iio@vger.kernel.org
+Description:
+ Accelerometer power mode. Setting this attribute will set the
+ requested power mode to use if the ODR support it. If ODR
+ support only 1 mode, power mode will be enforced.
+ Reading this attribute will return the current accelerometer
+ power mode if the sensor is on, or the requested value if the
+ sensor is off. The value between real and requested value can
+ be different for ODR supporting only 1 mode.
+
+What: /sys/bus/iio/devices/iio:deviceX/in_accel_power_mode_available
+KernelVersion: 6.11
+Contact: linux-iio@vger.kernel.org
+Description:
+ List of available accelerometer power modes that can be set in
+ in_accel_power_mode attribute.
diff --git a/Documentation/ABI/testing/sysfs-bus-pci-drivers-xhci_hcd b/Documentation/ABI/testing/sysfs-bus-pci-drivers-xhci_hcd
index 5a775b8..fc82aa4 100644
--- a/Documentation/ABI/testing/sysfs-bus-pci-drivers-xhci_hcd
+++ b/Documentation/ABI/testing/sysfs-bus-pci-drivers-xhci_hcd
@@ -75,3 +75,13 @@
The default value is 1 (GNU Remote Debug command).
Other permissible value is 0 which is for vendor defined debug
target.
+
+What: /sys/bus/pci/drivers/xhci_hcd/.../dbc_poll_interval_ms
+Date: February 2024
+Contact: Mathias Nyman <mathias.nyman@linux.intel.com>
+Description:
+ This attribute adjust the polling interval used to check for
+ DbC events. Unit is milliseconds. Accepted values range from 0
+ up to 5000. The default value is 64 ms.
+ This polling interval is used while DbC is enabled but has no
+ active data transfers.
diff --git a/Documentation/ABI/testing/sysfs-bus-platform-onboard-usb-dev b/Documentation/ABI/testing/sysfs-bus-platform-onboard-usb-dev
new file mode 100644
index 0000000..b06a48c
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-platform-onboard-usb-dev
@@ -0,0 +1,9 @@
+What: /sys/bus/platform/devices/<dev>/always_powered_in_suspend
+Date: June 2022
+KernelVersion: 5.20
+Contact: Matthias Kaehlcke <matthias@kaehlcke.net>
+ linux-usb@vger.kernel.org
+Description:
+ (RW) Controls whether the USB hub remains always powered
+ during system suspend or not. This attribute is not
+ available for non-hub devices.
diff --git a/Documentation/ABI/testing/sysfs-bus-platform-onboard-usb-hub b/Documentation/ABI/testing/sysfs-bus-platform-onboard-usb-hub
deleted file mode 100644
index 42deb05..0000000
--- a/Documentation/ABI/testing/sysfs-bus-platform-onboard-usb-hub
+++ /dev/null
@@ -1,8 +0,0 @@
-What: /sys/bus/platform/devices/<dev>/always_powered_in_suspend
-Date: June 2022
-KernelVersion: 5.20
-Contact: Matthias Kaehlcke <matthias@kaehlcke.net>
- linux-usb@vger.kernel.org
-Description:
- (RW) Controls whether the USB hub remains always powered
- during system suspend or not.
\ No newline at end of file
diff --git a/Documentation/ABI/testing/sysfs-bus-wmi b/Documentation/ABI/testing/sysfs-bus-wmi
new file mode 100644
index 0000000..aadb35b
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-wmi
@@ -0,0 +1,81 @@
+What: /sys/bus/wmi/devices/.../driver_override
+Date: February 2024
+Contact: Armin Wolf <W_Armin@gmx.de>
+Description:
+ This file allows the driver for a device to be specified which
+ will override standard ID table matching.
+ When specified, only a driver with a name matching the value
+ written to driver_override will have an opportunity to bind
+ to the device.
+ The override is specified by writing a string to the
+ driver_override file (echo wmi-event-dummy > driver_override).
+ The override may be cleared with an empty string (echo > \
+ driver_override) which returns the device to standard matching
+ rules binding.
+ Writing to driver_override does not automatically unbind the
+ device from its current driver or make any attempt to automatically
+ load the specified driver. If no driver with a matching name is
+ currently loaded in the kernel, the device will not bind to any
+ driver.
+ This also allows devices to opt-out of driver binding using a
+ driver_override name such as "none". Only a single driver may be
+ specified in the override, there is no support for parsing delimiters.
+
+What: /sys/bus/wmi/devices/.../modalias
+Date: November 20:15
+Contact: Andy Lutomirski <luto@kernel.org>
+Description:
+ This file contains the MODALIAS value emitted by uevent for a
+ given WMI device.
+
+ Format: wmi:XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX.
+
+What: /sys/bus/wmi/devices/.../guid
+Date: November 2015
+Contact: Andy Lutomirski <luto@kernel.org>
+Description:
+ This file contains the GUID used to match WMI devices to
+ compatible WMI drivers. This GUID is not necessarily unique
+ inside a given machine, it is solely used to identify the
+ interface exposed by a given WMI device.
+
+What: /sys/bus/wmi/devices/.../object_id
+Date: November 2015
+Contact: Andy Lutomirski <luto@kernel.org>
+Description:
+ This file contains the WMI object ID used internally to construct
+ the ACPI method names used by non-event WMI devices. It contains
+ two ASCII letters.
+
+What: /sys/bus/wmi/devices/.../notify_id
+Date: November 2015
+Contact: Andy Lutomirski <luto@kernel.org>
+Description:
+ This file contains the WMI notify ID used internally to map ACPI
+ events to WMI event devices. It contains two ASCII letters.
+
+What: /sys/bus/wmi/devices/.../instance_count
+Date: November 2015
+Contact: Andy Lutomirski <luto@kernel.org>
+Description:
+ This file contains the number of WMI object instances being
+ present on a given WMI device. It contains a non-negative
+ number.
+
+What: /sys/bus/wmi/devices/.../expensive
+Date: November 2015
+Contact: Andy Lutomirski <luto@kernel.org>
+Description:
+ This file contains a boolean flag signaling if interacting with
+ the given WMI device will consume significant CPU resources.
+ The WMI driver core will take care of enabling/disabling such
+ WMI devices.
+
+What: /sys/bus/wmi/devices/.../setable
+Date: May 2017
+Contact: Darren Hart (VMware) <dvhart@infradead.org>
+Description:
+ This file contains a boolean flags signaling the data block
+ aassociated with the given WMI device is writable. If the
+ given WMI device is not associated with a data block, then
+ this file will not exist.
diff --git a/Documentation/ABI/testing/sysfs-class-led-trigger-pattern b/Documentation/ABI/testing/sysfs-class-led-trigger-pattern
index 8c57d27..22f28f2 100644
--- a/Documentation/ABI/testing/sysfs-class-led-trigger-pattern
+++ b/Documentation/ABI/testing/sysfs-class-led-trigger-pattern
@@ -12,6 +12,16 @@
The exact format is described in:
Documentation/devicetree/bindings/leds/leds-trigger-pattern.txt
+What: /sys/class/leds/<led>/hr_pattern
+Date: April 2024
+Description:
+ Specify a software pattern for the LED, that supports altering
+ the brightness for the specified duration with one software
+ timer. It can do gradual dimming and step change of brightness.
+
+ Unlike the /sys/class/leds/<led>/pattern, this attribute runs
+ a pattern on high-resolution timer (hrtimer).
+
What: /sys/class/leds/<led>/hw_pattern
Date: September 2018
KernelVersion: 4.20
diff --git a/Documentation/ABI/testing/sysfs-devices-hisi_ptt b/Documentation/ABI/testing/sysfs-devices-hisi_ptt
deleted file mode 100644
index d7e206b..0000000
--- a/Documentation/ABI/testing/sysfs-devices-hisi_ptt
+++ /dev/null
@@ -1,113 +0,0 @@
-What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/tune
-Date: October 2022
-KernelVersion: 6.1
-Contact: Yicong Yang <yangyicong@hisilicon.com>
-Description: This directory contains files for tuning the PCIe link
- parameters(events). Each file is named after the event
- of the PCIe link.
-
- See Documentation/trace/hisi-ptt.rst for more information.
-
-What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/tune/qos_tx_cpl
-Date: October 2022
-KernelVersion: 6.1
-Contact: Yicong Yang <yangyicong@hisilicon.com>
-Description: (RW) Controls the weight of Tx completion TLPs, which influence
- the proportion of outbound completion TLPs on the PCIe link.
- The available tune data is [0, 1, 2]. Writing a negative value
- will return an error, and out of range values will be converted
- to 2. The value indicates a probable level of the event.
-
-What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/tune/qos_tx_np
-Date: October 2022
-KernelVersion: 6.1
-Contact: Yicong Yang <yangyicong@hisilicon.com>
-Description: (RW) Controls the weight of Tx non-posted TLPs, which influence
- the proportion of outbound non-posted TLPs on the PCIe link.
- The available tune data is [0, 1, 2]. Writing a negative value
- will return an error, and out of range values will be converted
- to 2. The value indicates a probable level of the event.
-
-What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/tune/qos_tx_p
-Date: October 2022
-KernelVersion: 6.1
-Contact: Yicong Yang <yangyicong@hisilicon.com>
-Description: (RW) Controls the weight of Tx posted TLPs, which influence the
- proportion of outbound posted TLPs on the PCIe link.
- The available tune data is [0, 1, 2]. Writing a negative value
- will return an error, and out of range values will be converted
- to 2. The value indicates a probable level of the event.
-
-What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/tune/rx_alloc_buf_level
-Date: October 2022
-KernelVersion: 6.1
-Contact: Yicong Yang <yangyicong@hisilicon.com>
-Description: (RW) Control the allocated buffer watermark for inbound packets.
- The packets will be stored in the buffer first and then transmitted
- either when the watermark reached or when timed out.
- The available tune data is [0, 1, 2]. Writing a negative value
- will return an error, and out of range values will be converted
- to 2. The value indicates a probable level of the event.
-
-What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/tune/tx_alloc_buf_level
-Date: October 2022
-KernelVersion: 6.1
-Contact: Yicong Yang <yangyicong@hisilicon.com>
-Description: (RW) Control the allocated buffer watermark of outbound packets.
- The packets will be stored in the buffer first and then transmitted
- either when the watermark reached or when timed out.
- The available tune data is [0, 1, 2]. Writing a negative value
- will return an error, and out of range values will be converted
- to 2. The value indicates a probable level of the event.
-
-What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/root_port_filters
-Date: May 2023
-KernelVersion: 6.5
-Contact: Yicong Yang <yangyicong@hisilicon.com>
-Description: This directory contains the files providing the PCIe Root Port filters
- information used for PTT trace. Each file is named after the supported
- Root Port device name <domain>:<bus>:<device>.<function>.
-
- See the description of the "filter" in Documentation/trace/hisi-ptt.rst
- for more information.
-
-What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/root_port_filters/multiselect
-Date: May 2023
-KernelVersion: 6.5
-Contact: Yicong Yang <yangyicong@hisilicon.com>
-Description: (Read) Indicates if this kind of filter can be selected at the same
- time as others filters, or must be used on it's own. 1 indicates
- the former case and 0 indicates the latter.
-
-What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/root_port_filters/<bdf>
-Date: May 2023
-KernelVersion: 6.5
-Contact: Yicong Yang <yangyicong@hisilicon.com>
-Description: (Read) Indicates the filter value of this Root Port filter, which
- can be used to control the TLP headers to trace by the PTT trace.
-
-What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/requester_filters
-Date: May 2023
-KernelVersion: 6.5
-Contact: Yicong Yang <yangyicong@hisilicon.com>
-Description: This directory contains the files providing the PCIe Requester filters
- information used for PTT trace. Each file is named after the supported
- Endpoint device name <domain>:<bus>:<device>.<function>.
-
- See the description of the "filter" in Documentation/trace/hisi-ptt.rst
- for more information.
-
-What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/requester_filters/multiselect
-Date: May 2023
-KernelVersion: 6.5
-Contact: Yicong Yang <yangyicong@hisilicon.com>
-Description: (Read) Indicates if this kind of filter can be selected at the same
- time as others filters, or must be used on it's own. 1 indicates
- the former case and 0 indicates the latter.
-
-What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/requester_filters/<bdf>
-Date: May 2023
-KernelVersion: 6.5
-Contact: Yicong Yang <yangyicong@hisilicon.com>
-Description: (Read) Indicates the filter value of this Requester filter, which
- can be used to control the TLP headers to trace by the PTT trace.
diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu
index 710d47b..de725ca 100644
--- a/Documentation/ABI/testing/sysfs-devices-system-cpu
+++ b/Documentation/ABI/testing/sysfs-devices-system-cpu
@@ -423,7 +423,7 @@
/sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/occ_reset
Date: March 2016
Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
- Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+ Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: POWERNV CPUFreq driver's frequency throttle stats directory and
attributes
@@ -473,7 +473,7 @@
/sys/devices/system/cpu/cpufreq/policyX/throttle_stats/occ_reset
Date: March 2016
Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
- Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+ Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: POWERNV CPUFreq driver's frequency throttle stats directory and
attributes
@@ -562,7 +562,8 @@
================ =========================================
If control status is "forceoff" or "notsupported" writes
- are rejected.
+ are rejected. Note that enabling SMT on PowerPC skips
+ offline cores.
What: /sys/devices/system/cpu/cpuX/power/energy_perf_bias
Date: March 2019
@@ -605,10 +606,22 @@
Note that a value of zero means there is no limit.
Low order two bits must be zero.
+What: /sys/devices/system/cpu/sev
+ /sys/devices/system/cpu/sev/vmpl
+Date: May 2024
+Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
+Description: Secure Encrypted Virtualization (SEV) information
+
+ This directory is only present when running as an SEV-SNP guest.
+
+ vmpl: Reports the Virtual Machine Privilege Level (VMPL) at which
+ the SEV-SNP guest is running.
+
+
What: /sys/devices/system/cpu/svm
Date: August 2019
Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
- Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+ Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: Secure Virtual Machine
If 1, it means the system is using the Protected Execution
@@ -617,7 +630,7 @@
What: /sys/devices/system/cpu/cpuX/purr
Date: Apr 2005
-Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: PURR ticks for this CPU since the system boot.
The Processor Utilization Resources Register (PURR) is
@@ -628,7 +641,7 @@
What: /sys/devices/system/cpu/cpuX/spurr
Date: Dec 2006
-Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: SPURR ticks for this CPU since the system boot.
The Scaled Processor Utilization Resources Register
@@ -640,7 +653,7 @@
What: /sys/devices/system/cpu/cpuX/idle_purr
Date: Apr 2020
-Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: PURR ticks for cpuX when it was idle.
This sysfs interface exposes the number of PURR ticks
@@ -648,7 +661,7 @@
What: /sys/devices/system/cpu/cpuX/idle_spurr
Date: Apr 2020
-Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: SPURR ticks for cpuX when it was idle.
This sysfs interface exposes the number of SPURR ticks
@@ -694,3 +707,9 @@
(RO) indicates whether or not the kernel directly supports
modifying the crash elfcorehdr for CPU hot un/plug and/or
on/offline changes.
+
+What: /sys/devices/system/cpu/enabled
+Date: Nov 2022
+Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
+Description:
+ (RO) the list of CPUs that can be brought online.
diff --git a/Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon b/Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon
index 023fd82..d792a56 100644
--- a/Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon
+++ b/Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon
@@ -10,7 +10,7 @@
power limit is disabled, writing 0 disables the
limit. Writing values > 0 and <= TDP will enable the power limit.
- Only supported for particular Intel xe graphics platforms.
+ Only supported for particular Intel Xe graphics platforms.
What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power1_rated_max
Date: September 2023
@@ -18,53 +18,93 @@
Contact: intel-xe@lists.freedesktop.org
Description: RO. Card default power limit (default TDP setting).
- Only supported for particular Intel xe graphics platforms.
+ Only supported for particular Intel Xe graphics platforms.
-What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power1_crit
-Date: September 2023
-KernelVersion: 6.5
-Contact: intel-xe@lists.freedesktop.org
-Description: RW. Card reactive critical (I1) power limit in microwatts.
-
- Card reactive critical (I1) power limit in microwatts is exposed
- for client products. The power controller will throttle the
- operating frequency if the power averaged over a window exceeds
- this limit.
-
- Only supported for particular Intel xe graphics platforms.
-
-What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/curr1_crit
-Date: September 2023
-KernelVersion: 6.5
-Contact: intel-xe@lists.freedesktop.org
-Description: RW. Card reactive critical (I1) power limit in milliamperes.
-
- Card reactive critical (I1) power limit in milliamperes is
- exposed for server products. The power controller will throttle
- the operating frequency if the power averaged over a window
- exceeds this limit.
-
-What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/in0_input
-Date: September 2023
-KernelVersion: 6.5
-Contact: intel-xe@lists.freedesktop.org
-Description: RO. Current Voltage in millivolt.
-
- Only supported for particular Intel xe graphics platforms.
What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/energy1_input
Date: September 2023
KernelVersion: 6.5
Contact: intel-xe@lists.freedesktop.org
-Description: RO. Energy input of device in microjoules.
+Description: RO. Card energy input of device in microjoules.
- Only supported for particular Intel xe graphics platforms.
+ Only supported for particular Intel Xe graphics platforms.
What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power1_max_interval
Date: October 2023
KernelVersion: 6.6
Contact: intel-xe@lists.freedesktop.org
-Description: RW. Sustained power limit interval (Tau in PL1/Tau) in
+Description: RW. Card sustained power limit interval (Tau in PL1/Tau) in
milliseconds over which sustained power is averaged.
- Only supported for particular Intel xe graphics platforms.
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power2_max
+Date: February 2024
+KernelVersion: 6.8
+Contact: intel-xe@lists.freedesktop.org
+Description: RW. Package reactive sustained (PL1) power limit in microwatts.
+
+ The power controller will throttle the operating frequency
+ if the power averaged over a window (typically seconds)
+ exceeds this limit. A read value of 0 means that the PL1
+ power limit is disabled, writing 0 disables the
+ limit. Writing values > 0 and <= TDP will enable the power limit.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power2_rated_max
+Date: February 2024
+KernelVersion: 6.8
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. Package default power limit (default TDP setting).
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power2_crit
+Date: February 2024
+KernelVersion: 6.8
+Contact: intel-xe@lists.freedesktop.org
+Description: RW. Package reactive critical (I1) power limit in microwatts.
+
+ Package reactive critical (I1) power limit in microwatts is exposed
+ for client products. The power controller will throttle the
+ operating frequency if the power averaged over a window exceeds
+ this limit.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/curr2_crit
+Date: February 2024
+KernelVersion: 6.8
+Contact: intel-xe@lists.freedesktop.org
+Description: RW. Package reactive critical (I1) power limit in milliamperes.
+
+ Package reactive critical (I1) power limit in milliamperes is
+ exposed for server products. The power controller will throttle
+ the operating frequency if the power averaged over a window
+ exceeds this limit.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/energy2_input
+Date: February 2024
+KernelVersion: 6.8
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. Package energy input of device in microjoules.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power2_max_interval
+Date: February 2024
+KernelVersion: 6.8
+Contact: intel-xe@lists.freedesktop.org
+Description: RW. Package sustained power limit interval (Tau in PL1/Tau) in
+ milliseconds over which sustained power is averaged.
+
+ Only supported for particular Intel Xe graphics platforms.
+
+What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/in1_input
+Date: February 2024
+KernelVersion: 6.8
+Contact: intel-xe@lists.freedesktop.org
+Description: RO. Package current voltage in millivolt.
+
+ Only supported for particular Intel Xe graphics platforms.
diff --git a/Documentation/ABI/testing/sysfs-driver-panfrost-profiling b/Documentation/ABI/testing/sysfs-driver-panfrost-profiling
new file mode 100644
index 0000000..7597c42
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-panfrost-profiling
@@ -0,0 +1,10 @@
+What: /sys/bus/platform/drivers/panfrost/.../profiling
+Date: February 2024
+KernelVersion: 6.8.0
+Contact: Adrian Larumbe <adrian.larumbe@collabora.com>
+Description:
+ Get/set drm fdinfo's engine and cycles profiling status.
+ Valid values are:
+ 0: Don't enable fdinfo job profiling sources.
+ 1: Enable fdinfo job profiling sources, this enables both the GPU's
+ timestamp and cycle counter registers.
diff --git a/Documentation/ABI/testing/sysfs-driver-qat b/Documentation/ABI/testing/sysfs-driver-qat
index 96020fb..f290e77 100644
--- a/Documentation/ABI/testing/sysfs-driver-qat
+++ b/Documentation/ABI/testing/sysfs-driver-qat
@@ -143,8 +143,8 @@
This attribute is only available for qat_4xxx devices.
What: /sys/bus/pci/devices/<BDF>/qat/auto_reset
-Date: March 2024
-KernelVersion: 6.8
+Date: May 2024
+KernelVersion: 6.9
Contact: qat-linux@intel.com
Description: (RW) Reports the current state of the autoreset feature
for a QAT device
diff --git a/Documentation/ABI/testing/sysfs-driver-ufs b/Documentation/ABI/testing/sysfs-driver-ufs
index 5bf7073..fe943ce 100644
--- a/Documentation/ABI/testing/sysfs-driver-ufs
+++ b/Documentation/ABI/testing/sysfs-driver-ufs
@@ -920,14 +920,16 @@
What: /sys/bus/platform/drivers/ufshcd/*/attributes/max_number_of_rtt
What: /sys/bus/platform/devices/*.ufs/attributes/max_number_of_rtt
-Date: February 2018
-Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
+Date: May 2024
+Contact: Avri Altman <avri.altman@wdc.com>
Description: This file provides the maximum current number of
- outstanding RTTs in device that is allowed. The full
- information about the attribute could be found at
- UFS specifications 2.1.
+ outstanding RTTs in device that is allowed. bMaxNumOfRTT is a
+ read-write persistent attribute and is equal to two after device
+ manufacturing. It shall not be set to a value greater than
+ bDeviceRTTCap value, and it may be set only when the hw queues are
+ empty.
- The file is read only.
+ The file is read write.
What: /sys/bus/platform/drivers/ufshcd/*/attributes/exception_event_control
What: /sys/bus/platform/devices/*.ufs/attributes/exception_event_control
diff --git a/Documentation/ABI/testing/sysfs-firmware-opal-powercap b/Documentation/ABI/testing/sysfs-firmware-opal-powercap
index c9b66ec..d2d12ee 100644
--- a/Documentation/ABI/testing/sysfs-firmware-opal-powercap
+++ b/Documentation/ABI/testing/sysfs-firmware-opal-powercap
@@ -1,6 +1,6 @@
What: /sys/firmware/opal/powercap
Date: August 2017
-Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: Powercap directory for Powernv (P8, P9) servers
Each folder in this directory contains a
@@ -11,7 +11,7 @@
/sys/firmware/opal/powercap/system-powercap/powercap-max
/sys/firmware/opal/powercap/system-powercap/powercap-current
Date: August 2017
-Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: System powercap directory and attributes applicable for
Powernv (P8, P9) servers
diff --git a/Documentation/ABI/testing/sysfs-firmware-opal-psr b/Documentation/ABI/testing/sysfs-firmware-opal-psr
index cc2ece7..1e55b56 100644
--- a/Documentation/ABI/testing/sysfs-firmware-opal-psr
+++ b/Documentation/ABI/testing/sysfs-firmware-opal-psr
@@ -1,6 +1,6 @@
What: /sys/firmware/opal/psr
Date: August 2017
-Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: Power-Shift-Ratio directory for Powernv P9 servers
Power-Shift-Ratio allows to provide hints the firmware
@@ -10,7 +10,7 @@
What: /sys/firmware/opal/psr/cpu_to_gpu_X
Date: August 2017
-Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: PSR sysfs attributes for Powernv P9 servers
Power-Shift-Ratio between CPU and GPU for a given chip
diff --git a/Documentation/ABI/testing/sysfs-firmware-opal-sensor-groups b/Documentation/ABI/testing/sysfs-firmware-opal-sensor-groups
index 3a2dfe5..fcb1fb4 100644
--- a/Documentation/ABI/testing/sysfs-firmware-opal-sensor-groups
+++ b/Documentation/ABI/testing/sysfs-firmware-opal-sensor-groups
@@ -1,6 +1,6 @@
What: /sys/firmware/opal/sensor_groups
Date: August 2017
-Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: Sensor groups directory for POWER9 powernv servers
Each folder in this directory contains a sensor group
@@ -11,7 +11,7 @@
What: /sys/firmware/opal/sensor_groups/<sensor_group_name>/clear
Date: August 2017
-Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: Sysfs file to clear the min-max of all the sensors
belonging to the group.
diff --git a/Documentation/ABI/testing/sysfs-firmware-papr-energy-scale-info b/Documentation/ABI/testing/sysfs-firmware-papr-energy-scale-info
index 141a6b3..f5cefb8 100644
--- a/Documentation/ABI/testing/sysfs-firmware-papr-energy-scale-info
+++ b/Documentation/ABI/testing/sysfs-firmware-papr-energy-scale-info
@@ -1,6 +1,6 @@
What: /sys/firmware/papr/energy_scale_info
Date: February 2022
-Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: Directory hosting a set of platform attributes like
energy/frequency on Linux running as a PAPR guest.
@@ -10,20 +10,20 @@
What: /sys/firmware/papr/energy_scale_info/<id>
Date: February 2022
-Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: Energy, frequency attributes directory for POWERVM servers
What: /sys/firmware/papr/energy_scale_info/<id>/desc
Date: February 2022
-Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: String description of the energy attribute of <id>
What: /sys/firmware/papr/energy_scale_info/<id>/value
Date: February 2022
-Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: Numeric value of the energy attribute of <id>
What: /sys/firmware/papr/energy_scale_info/<id>/value_desc
Date: February 2022
-Contact: Linux for PowerPC mailing list <linuxppc-dev@ozlabs.org>
+Contact: Linux for PowerPC mailing list <linuxppc-dev@lists.ozlabs.org>
Description: String value of the energy attribute of <id>
diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs
index 1a4d839..cad6c3dc 100644
--- a/Documentation/ABI/testing/sysfs-fs-f2fs
+++ b/Documentation/ABI/testing/sysfs-fs-f2fs
@@ -331,7 +331,7 @@
Contact: Jaegeuk Kim <jaegeuk@kernel.org>
Description: This indicates how many GC can be failed for the pinned
file. If it exceeds this, F2FS doesn't guarantee its pinning
- state. 2048 trials is set by default.
+ state. 2048 trials is set by default, and 65535 as maximum.
What: /sys/fs/f2fs/<disk>/extension_list
Date: February 2018
diff --git a/Documentation/ABI/testing/sysfs-fs-xfs b/Documentation/ABI/testing/sysfs-fs-xfs
index f704925..7da4de9 100644
--- a/Documentation/ABI/testing/sysfs-fs-xfs
+++ b/Documentation/ABI/testing/sysfs-fs-xfs
@@ -1,7 +1,7 @@
What: /sys/fs/xfs/<disk>/log/log_head_lsn
Date: July 2014
KernelVersion: 3.17
-Contact: xfs@oss.sgi.com
+Contact: linux-xfs@vger.kernel.org
Description:
The log sequence number (LSN) of the current head of the
log. The LSN is exported in "cycle:basic block" format.
@@ -10,30 +10,28 @@
What: /sys/fs/xfs/<disk>/log/log_tail_lsn
Date: July 2014
KernelVersion: 3.17
-Contact: xfs@oss.sgi.com
+Contact: linux-xfs@vger.kernel.org
Description:
The log sequence number (LSN) of the current tail of the
log. The LSN is exported in "cycle:basic block" format.
-What: /sys/fs/xfs/<disk>/log/reserve_grant_head
-Date: July 2014
-KernelVersion: 3.17
-Contact: xfs@oss.sgi.com
+What: /sys/fs/xfs/<disk>/log/reserve_grant_head_bytes
+Date: June 2024
+KernelVersion: 6.11
+Contact: linux-xfs@vger.kernel.org
Description:
The current state of the log reserve grant head. It
represents the total log reservation of all currently
- outstanding transactions. The grant head is exported in
- "cycle:bytes" format.
+ outstanding transactions in bytes.
Users: xfstests
-What: /sys/fs/xfs/<disk>/log/write_grant_head
-Date: July 2014
-KernelVersion: 3.17
-Contact: xfs@oss.sgi.com
+What: /sys/fs/xfs/<disk>/log/write_grant_head_bytes
+Date: June 2024
+KernelVersion: 6.11
+Contact: linux-xfs@vger.kernel.org
Description:
The current state of the log write grant head. It
represents the total log reservation of all currently
outstanding transactions, including regrants due to
- rolling transactions. The grant head is exported in
- "cycle:bytes" format.
+ rolling transactions in bytes.
Users: xfstests
diff --git a/Documentation/ABI/testing/sysfs-kernel-fadump b/Documentation/ABI/testing/sysfs-kernel-fadump
index 8f7a64a..2f9daa7 100644
--- a/Documentation/ABI/testing/sysfs-kernel-fadump
+++ b/Documentation/ABI/testing/sysfs-kernel-fadump
@@ -38,3 +38,21 @@
Description: read only
Provide information about the amount of memory reserved by
FADump to save the crash dump in bytes.
+
+What: /sys/kernel/fadump/hotplug_ready
+Date: Apr 2024
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read only
+ Kdump udev rule re-registers fadump on memory add/remove events,
+ primarily to update the elfcorehdr. This sysfs indicates the
+ kdump udev rule that fadump re-registration is not required on
+ memory add/remove events because elfcorehdr is now prepared in
+ the second/fadump kernel.
+User: kexec-tools
+
+What: /sys/kernel/fadump/bootargs_append
+Date: May 2024
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read/write
+ This is a special sysfs file available to setup additional
+ parameters to be passed to capture kernel.
diff --git a/Documentation/ABI/testing/sysfs-kernel-livepatch b/Documentation/ABI/testing/sysfs-kernel-livepatch
index a5df9b4..3735d86 100644
--- a/Documentation/ABI/testing/sysfs-kernel-livepatch
+++ b/Documentation/ABI/testing/sysfs-kernel-livepatch
@@ -47,6 +47,14 @@
disabled when the feature is used. See
Documentation/livepatch/livepatch.rst for more information.
+What: /sys/kernel/livepatch/<patch>/replace
+Date: Jun 2024
+KernelVersion: 6.11.0
+Contact: live-patching@vger.kernel.org
+Description:
+ An attribute which indicates whether the patch supports
+ atomic-replace.
+
What: /sys/kernel/livepatch/<patch>/<object>
Date: Nov 2014
KernelVersion: 3.19.0
diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-damon b/Documentation/ABI/testing/sysfs-kernel-mm-damon
index dad4d5f..f1b90cf 100644
--- a/Documentation/ABI/testing/sysfs-kernel-mm-damon
+++ b/Documentation/ABI/testing/sysfs-kernel-mm-damon
@@ -155,6 +155,12 @@
Description: Writing to and reading from this file sets and gets the action
of the scheme.
+What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/target_nid
+Date: Jun 2024
+Contact: SeongJae Park <sj@kernel.org>
+Description: Action's target NUMA node id. Supported by only relevant
+ actions.
+
What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/apply_interval_us
Date: Sep 2023
Contact: SeongJae Park <sj@kernel.org>
@@ -314,9 +320,9 @@
Contact: SeongJae Park <sj@kernel.org>
Description: Writing to and reading from this file sets and gets the type of
the memory of the interest. 'anon' for anonymous pages,
- 'memcg' for specific memory cgroup, 'addr' for address range
- (an open-ended interval), or 'target' for DAMON monitoring
- target can be written and read.
+ 'memcg' for specific memory cgroup, 'young' for young pages,
+ 'addr' for address range (an open-ended interval), or 'target'
+ for DAMON monitoring target can be written and read.
What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/filters/<F>/memcg_path
Date: Dec 2022
diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-transparent-hugepage b/Documentation/ABI/testing/sysfs-kernel-mm-transparent-hugepage
new file mode 100644
index 0000000..7bfbb9c
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-kernel-mm-transparent-hugepage
@@ -0,0 +1,18 @@
+What: /sys/kernel/mm/transparent_hugepage/
+Date: April 2024
+Contact: Linux memory management mailing list <linux-mm@kvack.org>
+Description:
+ /sys/kernel/mm/transparent_hugepage/ contains a number of files and
+ subdirectories,
+
+ - defrag
+ - enabled
+ - hpage_pmd_size
+ - khugepaged
+ - shmem_enabled
+ - use_zero_page
+ - subdirectories of the form hugepages-<size>kB, where <size>
+ is the page size of the hugepages supported by the kernel/CPU
+ combination.
+
+ See Documentation/admin-guide/mm/transhuge.rst for details.
diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi
index 8a7e25b..2814437 100644
--- a/Documentation/ABI/testing/sysfs-platform-asus-wmi
+++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi
@@ -126,6 +126,14 @@
Change the mini-LED mode:
* 0 - Single-zone,
* 1 - Multi-zone
+ * 2 - Multi-zone strong (available on newer generation mini-led)
+
+What: /sys/devices/platform/<platform>/available_mini_led_mode
+Date: Apr 2024
+KernelVersion: 6.10
+Contact: "Luke Jones" <luke@ljones.dev>
+Description:
+ List the available mini-led modes.
What: /sys/devices/platform/<platform>/ppt_pl1_spl
Date: Jun 2023
@@ -186,3 +194,21 @@
Description:
Set the target temperature limit of the Nvidia dGPU:
* min=75, max=87
+
+What: /sys/devices/platform/<platform>/boot_sound
+Date: Apr 2024
+KernelVersion: 6.10
+Contact: "Luke Jones" <luke@ljones.dev>
+Description:
+ Set if the BIOS POST sound is played on boot.
+ * 0 - False,
+ * 1 - True
+
+What: /sys/devices/platform/<platform>/mcu_powersave
+Date: Apr 2024
+KernelVersion: 6.10
+Contact: "Luke Jones" <luke@ljones.dev>
+Description:
+ Set if the MCU can go in to low-power mode on system sleep
+ * 0 - False,
+ * 1 - True
diff --git a/Documentation/Makefile b/Documentation/Makefile
index b68f8c8..fa71602 100644
--- a/Documentation/Makefile
+++ b/Documentation/Makefile
@@ -28,6 +28,10 @@
PDFLATEX = xelatex
LATEXOPTS = -interaction=batchmode -no-shell-escape
+# For denylisting "variable font" files
+# Can be overridden by setting as an env variable
+FONTS_CONF_DENY_VF ?= $(HOME)/deny-vf
+
ifeq ($(findstring 1, $(KBUILD_VERBOSE)),)
SPHINXOPTS += "-q"
endif
@@ -76,22 +80,22 @@
# * dest folder relative to $(BUILDDIR) and
# * cache folder relative to $(BUILDDIR)/.doctrees
# $4 dest subfolder e.g. "man" for man pages at userspace-api/media/man
-# $5 reST source folder relative to $(srctree)/$(src),
+# $5 reST source folder relative to $(src),
# e.g. "userspace-api/media" for the linux-tv book-set at ./Documentation/userspace-api/media
quiet_cmd_sphinx = SPHINX $@ --> file://$(abspath $(BUILDDIR)/$3/$4)
cmd_sphinx = $(MAKE) BUILDDIR=$(abspath $(BUILDDIR)) $(build)=Documentation/userspace-api/media $2 && \
PYTHONDONTWRITEBYTECODE=1 \
- BUILDDIR=$(abspath $(BUILDDIR)) SPHINX_CONF=$(abspath $(srctree)/$(src)/$5/$(SPHINX_CONF)) \
+ BUILDDIR=$(abspath $(BUILDDIR)) SPHINX_CONF=$(abspath $(src)/$5/$(SPHINX_CONF)) \
$(PYTHON3) $(srctree)/scripts/jobserver-exec \
$(CONFIG_SHELL) $(srctree)/Documentation/sphinx/parallel-wrapper.sh \
$(SPHINXBUILD) \
-b $2 \
- -c $(abspath $(srctree)/$(src)) \
+ -c $(abspath $(src)) \
-d $(abspath $(BUILDDIR)/.doctrees/$3) \
-D version=$(KERNELVERSION) -D release=$(KERNELRELEASE) \
$(ALLSPHINXOPTS) \
- $(abspath $(srctree)/$(src)/$5) \
+ $(abspath $(src)/$5) \
$(abspath $(BUILDDIR)/$3/$4) && \
if [ "x$(DOCS_CSS)" != "x" ]; then \
cp $(if $(patsubst /%,,$(DOCS_CSS)),$(abspath $(srctree)/$(DOCS_CSS)),$(DOCS_CSS)) $(BUILDDIR)/$3/_static/; \
@@ -151,10 +155,11 @@
else # HAVE_PDFLATEX
+pdfdocs: DENY_VF = XDG_CONFIG_HOME=$(FONTS_CONF_DENY_VF)
pdfdocs: latexdocs
@$(srctree)/scripts/sphinx-pre-install --version-check
$(foreach var,$(SPHINXDIRS), \
- $(MAKE) PDFLATEX="$(PDFLATEX)" LATEXOPTS="$(LATEXOPTS)" -C $(BUILDDIR)/$(var)/latex || exit; \
+ $(MAKE) PDFLATEX="$(PDFLATEX)" LATEXOPTS="$(LATEXOPTS)" $(DENY_VF) -C $(BUILDDIR)/$(var)/latex || sh $(srctree)/scripts/check-variable-fonts.sh || exit; \
mkdir -p $(BUILDDIR)/$(var)/pdf; \
mv $(subst .tex,.pdf,$(wildcard $(BUILDDIR)/$(var)/latex/*.tex)) $(BUILDDIR)/$(var)/pdf/; \
)
diff --git a/Documentation/PCI/endpoint/pci-endpoint.rst b/Documentation/PCI/endpoint/pci-endpoint.rst
index 4f5622a..21507e3 100644
--- a/Documentation/PCI/endpoint/pci-endpoint.rst
+++ b/Documentation/PCI/endpoint/pci-endpoint.rst
@@ -172,8 +172,8 @@
* bind: ops to perform when a EPC device has been bound to EPF device
* unbind: ops to perform when a binding has been lost between a EPC
device and EPF device
- * linkup: ops to perform when the EPC device has established a
- connection with a host system
+ * add_cfs: optional ops to create function specific configfs
+ attributes
The PCI Function driver can then register the PCI EPF driver by using
pci_epf_register_driver().
diff --git a/Documentation/PCI/msi-howto.rst b/Documentation/PCI/msi-howto.rst
index 783d30b..0692c9a 100644
--- a/Documentation/PCI/msi-howto.rst
+++ b/Documentation/PCI/msi-howto.rst
@@ -103,7 +103,7 @@
if it can't meet the minimum number of vectors.
The flags argument is used to specify which type of interrupt can be used
-by the device and the driver (PCI_IRQ_LEGACY, PCI_IRQ_MSI, PCI_IRQ_MSIX).
+by the device and the driver (PCI_IRQ_INTX, PCI_IRQ_MSI, PCI_IRQ_MSIX).
A convenient short-hand (PCI_IRQ_ALL_TYPES) is also available to ask for
any possible kind of interrupt. If the PCI_IRQ_AFFINITY flag is set,
pci_alloc_irq_vectors() will spread the interrupts around the available CPUs.
diff --git a/Documentation/PCI/pci.rst b/Documentation/PCI/pci.rst
index cced568..dd7b1c0 100644
--- a/Documentation/PCI/pci.rst
+++ b/Documentation/PCI/pci.rst
@@ -335,7 +335,7 @@
capability registers. Many architectures, chip-sets, or BIOSes do NOT
support MSI or MSI-X and a call to pci_alloc_irq_vectors with just
the PCI_IRQ_MSI and PCI_IRQ_MSIX flags will fail, so try to always
-specify PCI_IRQ_LEGACY as well.
+specify PCI_IRQ_INTX as well.
Drivers that have different interrupt handlers for MSI/MSI-X and
legacy INTx should chose the right one based on the msi_enabled
diff --git a/Documentation/PCI/pcieaer-howto.rst b/Documentation/PCI/pcieaer-howto.rst
index e00d639..f013f3b 100644
--- a/Documentation/PCI/pcieaer-howto.rst
+++ b/Documentation/PCI/pcieaer-howto.rst
@@ -241,7 +241,7 @@
Then, you need a user space tool named aer-inject, which can be gotten
from:
- https://git.kernel.org/cgit/linux/kernel/git/gong.chen/aer-inject.git/
+ https://github.com/intel/aer-inject.git
More information about aer-inject can be found in the document in
its source code.
diff --git a/Documentation/PCI/pciebus-howto.rst b/Documentation/PCI/pciebus-howto.rst
index a0027e8..f344452 100644
--- a/Documentation/PCI/pciebus-howto.rst
+++ b/Documentation/PCI/pciebus-howto.rst
@@ -139,7 +139,7 @@
static struct pcie_port_service_driver root_aerdrv = {
.name = (char *)device_name,
- .id_table = &service_id[0],
+ .id_table = service_id,
.probe = aerdrv_load,
.remove = aerdrv_unload,
diff --git a/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.rst b/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.rst
index 5750f12..728b1e6 100644
--- a/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.rst
+++ b/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.rst
@@ -149,9 +149,9 @@
``atomic_add_return()`` read-modify-write atomic operation that
is invoked within ``rcu_dynticks_eqs_enter()`` at idle-entry
time and within ``rcu_dynticks_eqs_exit()`` at idle-exit time.
-The grace-period kthread invokes ``rcu_dynticks_snap()`` and
-``rcu_dynticks_in_eqs_since()`` (both of which invoke
-an ``atomic_add_return()`` of zero) to detect idle CPUs.
+The grace-period kthread invokes first ``ct_dynticks_cpu_acquire()``
+(preceded by a full memory barrier) and ``rcu_dynticks_in_eqs_since()``
+(both of which rely on acquire semantics) to detect idle CPUs.
+-----------------------------------------------------------------------+
| **Quick Quiz**: |
diff --git a/Documentation/RCU/Design/Requirements/Requirements.rst b/Documentation/RCU/Design/Requirements/Requirements.rst
index cccafda..f511476 100644
--- a/Documentation/RCU/Design/Requirements/Requirements.rst
+++ b/Documentation/RCU/Design/Requirements/Requirements.rst
@@ -2357,6 +2357,7 @@
#. `Sched Flavor (Historical)`_
#. `Sleepable RCU`_
#. `Tasks RCU`_
+#. `Tasks Trace RCU`_
Bottom-Half Flavor (Historical)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -2610,6 +2611,16 @@
is, calls to schedule(), cond_resched(), and
synchronize_rcu_tasks(). In addition, transitions to and from
userspace execution also delimit tasks-RCU read-side critical sections.
+Idle tasks are ignored by Tasks RCU, and Tasks Rude RCU may be used to
+interact with them.
+
+Note well that involuntary context switches are *not* Tasks-RCU quiescent
+states. After all, in preemptible kernels, a task executing code in a
+trampoline might be preempted. In this case, the Tasks-RCU grace period
+clearly cannot end until that task resumes and its execution leaves that
+trampoline. This means, among other things, that cond_resched() does
+not provide a Tasks RCU quiescent state. (Instead, use rcu_softirq_qs()
+from softirq or rcu_tasks_classic_qs() otherwise.)
The tasks-RCU API is quite compact, consisting only of
call_rcu_tasks(), synchronize_rcu_tasks(), and
@@ -2632,6 +2643,11 @@
workloads that don't want their ``nohz_full`` CPUs receiving IPIs and
by battery-powered systems that don't want their idle CPUs to be awakened.
+Once kernel entry/exit and deep-idle functions have been properly tagged
+``noinstr``, Tasks RCU can start paying attention to idle tasks (except
+those that are idle from RCU's perspective) and then Tasks Rude RCU can
+be removed from the kernel.
+
The tasks-rude-RCU API is also reader-marking-free and thus quite compact,
consisting of call_rcu_tasks_rude(), synchronize_rcu_tasks_rude(),
and rcu_barrier_tasks_rude().
diff --git a/Documentation/RCU/whatisRCU.rst b/Documentation/RCU/whatisRCU.rst
index 872ac66..d585a549 100644
--- a/Documentation/RCU/whatisRCU.rst
+++ b/Documentation/RCU/whatisRCU.rst
@@ -250,21 +250,25 @@
^^^^^^^^^^^^^^^^^^^^
void rcu_assign_pointer(p, typeof(p) v);
- Yes, rcu_assign_pointer() **is** implemented as a macro, though it
- would be cool to be able to declare a function in this manner.
- (Compiler experts will no doubt disagree.)
+ Yes, rcu_assign_pointer() **is** implemented as a macro, though
+ it would be cool to be able to declare a function in this manner.
+ (And there has been some discussion of adding overloaded functions
+ to the C language, so who knows?)
The updater uses this spatial macro to assign a new value to an
RCU-protected pointer, in order to safely communicate the change
in value from the updater to the reader. This is a spatial (as
opposed to temporal) macro. It does not evaluate to an rvalue,
- but it does execute any memory-barrier instructions required
- for a given CPU architecture. Its ordering properties are that
- of a store-release operation.
+ but it does provide any compiler directives and memory-barrier
+ instructions required for a given compile or CPU architecture.
+ Its ordering properties are that of a store-release operation,
+ that is, any prior loads and stores required to initialize the
+ structure are ordered before the store that publishes the pointer
+ to that structure.
- Perhaps just as important, it serves to document (1) which
- pointers are protected by RCU and (2) the point at which a
- given structure becomes accessible to other CPUs. That said,
+ Perhaps just as important, rcu_assign_pointer() serves to document
+ (1) which pointers are protected by RCU and (2) the point at which
+ a given structure becomes accessible to other CPUs. That said,
rcu_assign_pointer() is most frequently used indirectly, via
the _rcu list-manipulation primitives such as list_add_rcu().
@@ -283,7 +287,11 @@
executes any needed memory-barrier instructions for a given
CPU architecture. Currently, only Alpha needs memory barriers
within rcu_dereference() -- on other CPUs, it compiles to a
- volatile load.
+ volatile load. However, no mainstream C compilers respect
+ address dependencies, so rcu_dereference() uses volatile casts,
+ which, in combination with the coding guidelines listed in
+ rcu_dereference.rst, prevent current compilers from breaking
+ these dependencies.
Common coding practice uses rcu_dereference() to copy an
RCU-protected pointer to a local variable, then dereferences
@@ -427,7 +435,7 @@
This section shows a simple use of the core RCU API to protect a
global pointer to a dynamically allocated structure. More-typical
-uses of RCU may be found in listRCU.rst, arrayRCU.rst, and NMI-RCU.rst.
+uses of RCU may be found in listRCU.rst and NMI-RCU.rst.
::
struct foo {
@@ -510,8 +518,8 @@
data item.
See checklist.rst for additional rules to follow when using RCU.
-And again, more-typical uses of RCU may be found in listRCU.rst,
-arrayRCU.rst, and NMI-RCU.rst.
+And again, more-typical uses of RCU may be found in listRCU.rst
+and NMI-RCU.rst.
.. _4_whatisRCU:
diff --git a/Documentation/admin-guide/LSM/tomoyo.rst b/Documentation/admin-guide/LSM/tomoyo.rst
index 4bc9c2b..bdb2c2e 100644
--- a/Documentation/admin-guide/LSM/tomoyo.rst
+++ b/Documentation/admin-guide/LSM/tomoyo.rst
@@ -9,8 +9,8 @@
LiveCD-based tutorials are available at
-http://tomoyo.sourceforge.jp/1.8/ubuntu12.04-live.html
-http://tomoyo.sourceforge.jp/1.8/centos6-live.html
+https://tomoyo.sourceforge.net/1.8/ubuntu12.04-live.html
+https://tomoyo.sourceforge.net/1.8/centos6-live.html
Though these tutorials use non-LSM version of TOMOYO, they are useful for you
to know what TOMOYO is.
@@ -21,45 +21,32 @@
Build the kernel with ``CONFIG_SECURITY_TOMOYO=y`` and pass ``security=tomoyo`` on
kernel's command line.
-Please see http://tomoyo.osdn.jp/2.5/ for details.
+Please see https://tomoyo.sourceforge.net/2.6/ for details.
Where is documentation?
=======================
User <-> Kernel interface documentation is available at
-https://tomoyo.osdn.jp/2.5/policy-specification/index.html .
+https://tomoyo.sourceforge.net/2.6/policy-specification/index.html .
Materials we prepared for seminars and symposiums are available at
-https://osdn.jp/projects/tomoyo/docs/?category_id=532&language_id=1 .
+https://sourceforge.net/projects/tomoyo/files/docs/ .
Below lists are chosen from three aspects.
What is TOMOYO?
TOMOYO Linux Overview
- https://osdn.jp/projects/tomoyo/docs/lca2009-takeda.pdf
+ https://sourceforge.net/projects/tomoyo/files/docs/lca2009-takeda.pdf
TOMOYO Linux: pragmatic and manageable security for Linux
- https://osdn.jp/projects/tomoyo/docs/freedomhectaipei-tomoyo.pdf
+ https://sourceforge.net/projects/tomoyo/files/docs/freedomhectaipei-tomoyo.pdf
TOMOYO Linux: A Practical Method to Understand and Protect Your Own Linux Box
- https://osdn.jp/projects/tomoyo/docs/PacSec2007-en-no-demo.pdf
+ https://sourceforge.net/projects/tomoyo/files/docs/PacSec2007-en-no-demo.pdf
What can TOMOYO do?
Deep inside TOMOYO Linux
- https://osdn.jp/projects/tomoyo/docs/lca2009-kumaneko.pdf
+ https://sourceforge.net/projects/tomoyo/files/docs/lca2009-kumaneko.pdf
The role of "pathname based access control" in security.
- https://osdn.jp/projects/tomoyo/docs/lfj2008-bof.pdf
+ https://sourceforge.net/projects/tomoyo/files/docs/lfj2008-bof.pdf
History of TOMOYO?
Realities of Mainlining
- https://osdn.jp/projects/tomoyo/docs/lfj2008.pdf
-
-What is future plan?
-====================
-
-We believe that inode based security and name based security are complementary
-and both should be used together. But unfortunately, so far, we cannot enable
-multiple LSM modules at the same time. We feel sorry that you have to give up
-SELinux/SMACK/AppArmor etc. when you want to use TOMOYO.
-
-We hope that LSM becomes stackable in future. Meanwhile, you can use non-LSM
-version of TOMOYO, available at http://tomoyo.osdn.jp/1.8/ .
-LSM version of TOMOYO is a subset of non-LSM version of TOMOYO. We are planning
-to port non-LSM version's functionalities to LSM versions.
+ https://sourceforge.net/projects/tomoyo/files/docs/lfj2008.pdf
diff --git a/Documentation/admin-guide/blockdev/zram.rst b/Documentation/admin-guide/blockdev/zram.rst
index ee2b003..091e8bb 100644
--- a/Documentation/admin-guide/blockdev/zram.rst
+++ b/Documentation/admin-guide/blockdev/zram.rst
@@ -466,6 +466,11 @@
#recompress idle pages larger than 2000 bytes
echo "type=idle threshold=2000" > /sys/block/zramX/recompress
+It is also possible to limit the number of pages zram re-compression will
+attempt to recompress:::
+
+ echo "type=huge_idle max_pages=42" > /sys/block/zramX/recompress
+
Recompression of idle pages requires memory tracking.
During re-compression for every page, that matches re-compression criteria,
diff --git a/Documentation/admin-guide/cgroup-v1/cgroups.rst b/Documentation/admin-guide/cgroup-v1/cgroups.rst
index 9343148..a3e2edb 100644
--- a/Documentation/admin-guide/cgroup-v1/cgroups.rst
+++ b/Documentation/admin-guide/cgroup-v1/cgroups.rst
@@ -570,7 +570,7 @@
subsystem may choose to fail creation by returning -errno. This
callback can be used to implement reliable state sharing and
propagation along the hierarchy. See the comment on
-cgroup_for_each_descendant_pre() for details.
+cgroup_for_each_live_descendant_pre() for details.
``void css_offline(struct cgroup *cgrp);``
(cgroup_mutex held by caller)
diff --git a/Documentation/admin-guide/cgroup-v1/cpusets.rst b/Documentation/admin-guide/cgroup-v1/cpusets.rst
index 7d3415e..f401af5e 100644
--- a/Documentation/admin-guide/cgroup-v1/cpusets.rst
+++ b/Documentation/admin-guide/cgroup-v1/cpusets.rst
@@ -568,7 +568,7 @@
The 'cpuset.sched_relax_domain_level' file allows you to request changing
this searching range as you like. This file takes int value which
-indicates size of searching range in levels ideally as follows,
+indicates size of searching range in levels approximately as follows,
otherwise initial value -1 that indicates the cpuset has no request.
====== ===========================================================
@@ -581,6 +581,11 @@
5 search system wide [on NUMA system]
====== ===========================================================
+Not all levels can be present and values can change depending on the
+system architecture and kernel configuration. Check
+/sys/kernel/debug/sched/domains/cpu*/domain*/ for system-specific
+details.
+
The system default is architecture dependent. The system default
can be changed using the relax_domain_level= boot parameter.
diff --git a/Documentation/admin-guide/cgroup-v1/memcg_test.rst b/Documentation/admin-guide/cgroup-v1/memcg_test.rst
index 1f12845..9f8e273 100644
--- a/Documentation/admin-guide/cgroup-v1/memcg_test.rst
+++ b/Documentation/admin-guide/cgroup-v1/memcg_test.rst
@@ -102,7 +102,7 @@
The logic is very clear. (About migration, see below)
Note:
- __remove_from_page_cache() is called by remove_from_page_cache()
+ __filemap_remove_folio() is called by filemap_remove_folio()
and __remove_mapping().
6. Shmem(tmpfs) Page Cache
diff --git a/Documentation/admin-guide/cgroup-v1/memory.rst b/Documentation/admin-guide/cgroup-v1/memory.rst
index ca7d940..9cde26d 100644
--- a/Documentation/admin-guide/cgroup-v1/memory.rst
+++ b/Documentation/admin-guide/cgroup-v1/memory.rst
@@ -300,14 +300,14 @@
Lock order is as follows::
- Page lock (PG_locked bit of page->flags)
+ folio_lock
mm->page_table_lock or split pte_lock
folio_memcg_lock (memcg->move_lock)
mapping->i_pages lock
lruvec->lru_lock.
Per-node-per-memcgroup LRU (cgroup's private LRU) is guarded by
-lruvec->lru_lock; PG_lru bit of page->flags is cleared before
+lruvec->lru_lock; the folio LRU flag is cleared before
isolating a page from its LRU under lruvec->lru_lock.
.. _cgroup-v1-memory-kernel-extension:
@@ -802,8 +802,8 @@
| | anonymous pages, file pages (and swaps) in the range mmapped by the task |
| | will be moved even if the task hasn't done page fault, i.e. they might |
| | not be the task's "RSS", but other task's "RSS" that maps the same file. |
-| | And mapcount of the page is ignored (the page can be moved even if |
-| | page_mapcount(page) > 1). You must enable Swap Extension (see 2.4) to |
+| | The mapcount of the page is ignored (the page can be moved independent |
+| | of the mapcount). You must enable Swap Extension (see 2.4) to |
| | enable move of swap charges. |
+---+--------------------------------------------------------------------------+
diff --git a/Documentation/admin-guide/cgroup-v1/pids.rst b/Documentation/admin-guide/cgroup-v1/pids.rst
index 6acebd9..0f9f9a7 100644
--- a/Documentation/admin-guide/cgroup-v1/pids.rst
+++ b/Documentation/admin-guide/cgroup-v1/pids.rst
@@ -36,7 +36,8 @@
The pids.events file contains event counters:
- - max: Number of times fork failed because limit was hit.
+ - max: Number of times fork failed in the cgroup because limit was hit in
+ self or ancestors.
Example
-------
diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst
index 17e6e95..86311c2 100644
--- a/Documentation/admin-guide/cgroup-v2.rst
+++ b/Documentation/admin-guide/cgroup-v2.rst
@@ -239,6 +239,13 @@
will not be tracked by the memory controller (even if cgroup
v2 is remounted later on).
+ pids_localevents
+ The option restores v1-like behavior of pids.events:max, that is only
+ local (inside cgroup proper) fork failures are counted. Without this
+ option pids.events.max represents any pids.max enforcemnt across
+ cgroup's subtree.
+
+
Organizing Processes and Threads
--------------------------------
@@ -1058,12 +1065,15 @@
provided by a CPU, as well as the maximum desired frequency, which should not
be exceeded by a CPU.
-WARNING: cgroup2 doesn't yet support control of realtime processes and
-the cpu controller can only be enabled when all RT processes are in
-the root cgroup. Be aware that system management software may already
-have placed RT processes into nonroot cgroups during the system boot
-process, and these processes may need to be moved to the root cgroup
-before the cpu controller can be enabled.
+WARNING: cgroup2 doesn't yet support control of realtime processes. For
+a kernel built with the CONFIG_RT_GROUP_SCHED option enabled for group
+scheduling of realtime processes, the cpu controller can only be enabled
+when all RT processes are in the root cgroup. This limitation does
+not apply if CONFIG_RT_GROUP_SCHED is disabled. Be aware that system
+management software may already have placed RT processes into nonroot
+cgroups during the system boot process, and these processes may need
+to be moved to the root cgroup before the cpu controller can be enabled
+with a CONFIG_RT_GROUP_SCHED enabled kernel.
CPU Interface Files
@@ -1296,17 +1306,10 @@
This is a simple interface to trigger memory reclaim in the
target cgroup.
- This file accepts a single key, the number of bytes to reclaim.
- No nested keys are currently supported.
-
Example::
echo "1G" > memory.reclaim
- The interface can be later extended with nested keys to
- configure the reclaim behavior. For example, specify the
- type of memory to reclaim from (anon, file, ..).
-
Please note that the kernel can over or under reclaim from
the target cgroup. If less bytes are reclaimed than the
specified amount, -EAGAIN is returned.
@@ -1318,6 +1321,17 @@
This means that the networking layer will not adapt based on
reclaim induced by memory.reclaim.
+The following nested keys are defined.
+
+ ========== ================================
+ swappiness Swappiness value to reclaim with
+ ========== ================================
+
+ Specifying a swappiness value instructs the kernel to perform
+ the reclaim with that swappiness value. Note that this has the
+ same semantics as vm.swappiness applied to memcg reclaim with
+ all the existing limitations and potential future extensions.
+
memory.peak
A read-only single value file which exists on non-root
cgroups.
@@ -1432,7 +1446,7 @@
sec_pagetables
Amount of memory allocated for secondary page tables,
this currently includes KVM mmu allocations on x86
- and arm64.
+ and arm64 and IOMMU page tables.
percpu (npn)
Amount of memory used for storing per-cpu kernel
@@ -1572,6 +1586,15 @@
pglazyfreed (npn)
Amount of reclaimed lazyfree pages
+ zswpin
+ Number of pages moved in to memory from zswap.
+
+ zswpout
+ Number of pages moved out of memory to zswap.
+
+ zswpwb
+ Number of pages written from zswap to swap.
+
thp_fault_alloc (npn)
Number of transparent hugepages which were allocated to satisfy
a page fault. This counter is not present when CONFIG_TRANSPARENT_HUGEPAGE
@@ -2181,11 +2204,31 @@
Hard limit of number of processes.
pids.current
- A read-only single value file which exists on all cgroups.
+ A read-only single value file which exists on non-root cgroups.
The number of processes currently in the cgroup and its
descendants.
+ pids.peak
+ A read-only single value file which exists on non-root cgroups.
+
+ The maximum value that the number of processes in the cgroup and its
+ descendants has ever reached.
+
+ pids.events
+ A read-only flat-keyed file which exists on non-root cgroups. Unless
+ specified otherwise, a value change in this file generates a file
+ modified event. The following entries are defined.
+
+ max
+ The number of times the cgroup's total number of processes hit the pids.max
+ limit (see also pids_localevents).
+
+ pids.events.local
+ Similar to pids.events but the fields in the file are local
+ to the cgroup i.e. not hierarchical. The file modified event
+ generated on this file reflects only the local events.
+
Organisational operations are not blocked by cgroup policies, so it is
possible to have pids.current > pids.max. This can be done by either
setting the limit to be smaller than pids.current, or attaching enough
@@ -2320,8 +2363,12 @@
is always a subset of it.
Users can manually set it to a value that is different from
- "cpuset.cpus". The only constraint in setting it is that the
- list of CPUs must be exclusive with respect to its sibling.
+ "cpuset.cpus". One constraint in setting it is that the list of
+ CPUs must be exclusive with respect to "cpuset.cpus.exclusive"
+ of its sibling. If "cpuset.cpus.exclusive" of a sibling cgroup
+ isn't set, its "cpuset.cpus" value, if set, cannot be a subset
+ of it to leave at least one CPU available when the exclusive
+ CPUs are taken away.
For a parent cgroup, any one of its exclusive CPUs can only
be distributed to at most one of its child cgroups. Having an
@@ -2337,8 +2384,8 @@
cpuset-enabled cgroups.
This file shows the effective set of exclusive CPUs that
- can be used to create a partition root. The content of this
- file will always be a subset of "cpuset.cpus" and its parent's
+ can be used to create a partition root. The content
+ of this file will always be a subset of its parent's
"cpuset.cpus.exclusive.effective" if its parent is not the root
cgroup. It will also be a subset of "cpuset.cpus.exclusive"
if it is set. If "cpuset.cpus.exclusive" is not set, it is
@@ -2599,6 +2646,15 @@
res_a 3
res_b 0
+ misc.peak
+ A read-only flat-keyed file shown in all cgroups. It shows the
+ historical maximum usage of the resources in the cgroup and its
+ children.::
+
+ $ cat misc.peak
+ res_a 10
+ res_b 8
+
misc.max
A read-write flat-keyed file shown in the non root cgroups. Allowed
maximum usage of the resources in the cgroup and its children.::
@@ -2628,6 +2684,11 @@
The number of times the cgroup's resource usage was
about to go over the max boundary.
+ misc.events.local
+ Similar to misc.events but the fields in the file are local to the
+ cgroup i.e. not hierarchical. The file modified event generated on
+ this file reflects only the local events.
+
Migration and Ownership
~~~~~~~~~~~~~~~~~~~~~~~
diff --git a/Documentation/admin-guide/cifs/usage.rst b/Documentation/admin-guide/cifs/usage.rst
index aa8290a..c09674a 100644
--- a/Documentation/admin-guide/cifs/usage.rst
+++ b/Documentation/admin-guide/cifs/usage.rst
@@ -723,40 +723,26 @@
======================= =======================================================
SecurityFlags Flags which control security negotiation and
also packet signing. Authentication (may/must)
- flags (e.g. for NTLM and/or NTLMv2) may be combined with
+ flags (e.g. for NTLMv2) may be combined with
the signing flags. Specifying two different password
hashing mechanisms (as "must use") on the other hand
does not make much sense. Default flags are::
- 0x07007
+ 0x00C5
- (NTLM, NTLMv2 and packet signing allowed). The maximum
- allowable flags if you want to allow mounts to servers
- using weaker password hashes is 0x37037 (lanman,
- plaintext, ntlm, ntlmv2, signing allowed). Some
- SecurityFlags require the corresponding menuconfig
- options to be enabled. Enabling plaintext
- authentication currently requires also enabling
- lanman authentication in the security flags
- because the cifs module only supports sending
- laintext passwords using the older lanman dialect
- form of the session setup SMB. (e.g. for authentication
- using plain text passwords, set the SecurityFlags
- to 0x30030)::
+ (NTLMv2 and packet signing allowed). Some SecurityFlags
+ may require enabling a corresponding menuconfig option.
may use packet signing 0x00001
must use packet signing 0x01001
- may use NTLM (most common password hash) 0x00002
- must use NTLM 0x02002
may use NTLMv2 0x00004
must use NTLMv2 0x04004
- may use Kerberos security 0x00008
- must use Kerberos 0x08008
- may use lanman (weak) password hash 0x00010
- must use lanman password hash 0x10010
- may use plaintext passwords 0x00020
- must use plaintext passwords 0x20020
- (reserved for future packet encryption) 0x00040
+ may use Kerberos security (krb5) 0x00008
+ must use Kerberos 0x08008
+ may use NTLMSSP 0x00080
+ must use NTLMSSP 0x80080
+ seal (packet encryption) 0x00040
+ must seal 0x40040
cifsFYI If set to non-zero value, additional debug information
will be logged to the system error log. This field
diff --git a/Documentation/admin-guide/device-mapper/dm-crypt.rst b/Documentation/admin-guide/device-mapper/dm-crypt.rst
index aa2d04d..552c915 100644
--- a/Documentation/admin-guide/device-mapper/dm-crypt.rst
+++ b/Documentation/admin-guide/device-mapper/dm-crypt.rst
@@ -113,6 +113,11 @@
The default is to use an unbound workqueue so that encryption work
is automatically balanced between available CPUs.
+high_priority
+ Set dm-crypt workqueues and the writer thread to high priority. This
+ improves throughput and latency of dm-crypt while degrading general
+ responsiveness of the system.
+
submit_from_crypt_cpus
Disable offloading writes to a separate thread after encryption.
There are some situations where offloading write bios from the
@@ -155,6 +160,18 @@
The <iv_offset> must be multiple of <sector_size> (in 512 bytes units)
if this flag is specified.
+
+Module parameters::
+
+ max_read_size
+ max_write_size
+ Maximum size of read or write requests. When a request larger than this size
+ is received, dm-crypt will split the request. The splitting improves
+ concurrency (the split requests could be encrypted in parallel by multiple
+ cores), but it also causes overhead. The user should tune these parameters to
+ fit the actual workload.
+
+
Example scripts
===============
LUKS (Linux Unified Key Setup) is now the preferred way to set up disk
diff --git a/Documentation/admin-guide/device-mapper/vdo.rst b/Documentation/admin-guide/device-mapper/vdo.rst
index 7e1ecaf..c69ac18 100644
--- a/Documentation/admin-guide/device-mapper/vdo.rst
+++ b/Documentation/admin-guide/device-mapper/vdo.rst
@@ -241,6 +241,7 @@
All vdo devices accept messages in the form:
::
+
dmsetup message <target-name> 0 <message-name> <message-parameters>
The messages are:
diff --git a/Documentation/admin-guide/dynamic-debug-howto.rst b/Documentation/admin-guide/dynamic-debug-howto.rst
index 0e9b48d..7c03659 100644
--- a/Documentation/admin-guide/dynamic-debug-howto.rst
+++ b/Documentation/admin-guide/dynamic-debug-howto.rst
@@ -26,6 +26,11 @@
- format string
- class name (as known/declared by each module)
+NOTE: To actually get the debug-print output on the console, you may
+need to adjust the kernel ``loglevel=``, or use ``ignore_loglevel``.
+Read about these kernel parameters in
+Documentation/admin-guide/kernel-parameters.rst.
+
Viewing Dynamic Debug Behaviour
===============================
diff --git a/Documentation/admin-guide/gpio/gpio-virtuser.rst b/Documentation/admin-guide/gpio/gpio-virtuser.rst
new file mode 100644
index 0000000..2aca70d
--- /dev/null
+++ b/Documentation/admin-guide/gpio/gpio-virtuser.rst
@@ -0,0 +1,177 @@
+.. SPDX-License-Identifier: GPL-2.0-only
+
+Virtual GPIO Consumer
+=====================
+
+The virtual GPIO Consumer module allows users to instantiate virtual devices
+that request GPIOs and then control their behavior over debugfs. Virtual
+consumer devices can be instantiated from device-tree or over configfs.
+
+A virtual consumer uses the driver-facing GPIO APIs and allows to cover it with
+automated tests driven by user-space. The GPIOs are requested using
+``gpiod_get_array()`` and so we support multiple GPIOs per connector ID.
+
+Creating GPIO consumers
+-----------------------
+
+The gpio-consumer module registers a configfs subsystem called
+``'gpio-virtuser'``. For details of the configfs filesystem, please refer to
+the configfs documentation.
+
+The user can create a hierarchy of configfs groups and items as well as modify
+values of exposed attributes. Once the consumer is instantiated, this hierarchy
+will be translated to appropriate device properties. The general structure is:
+
+**Group:** ``/config/gpio-virtuser``
+
+This is the top directory of the gpio-consumer configfs tree.
+
+**Group:** ``/config/gpio-consumer/example-name``
+
+**Attribute:** ``/config/gpio-consumer/example-name/live``
+
+**Attribute:** ``/config/gpio-consumer/example-name/dev_name``
+
+This is a directory representing a GPIO consumer device.
+
+The read-only ``dev_name`` attribute exposes the name of the device as it will
+appear in the system on the platform bus. This is useful for locating the
+associated debugfs directory under
+``/sys/kernel/debug/gpio-virtuser/$dev_name``.
+
+The ``'live'`` attribute allows to trigger the actual creation of the device
+once it's fully configured. The accepted values are: ``'1'`` to enable the
+virtual device and ``'0'`` to disable and tear it down.
+
+Creating GPIO lookup tables
+---------------------------
+
+Users can create a number of configfs groups under the device group:
+
+**Group:** ``/config/gpio-consumer/example-name/con_id``
+
+The ``'con_id'`` directory represents a single GPIO lookup and its value maps
+to the ``'con_id'`` argument of the ``gpiod_get()`` function. For example:
+``con_id`` == ``'reset'`` maps to the ``reset-gpios`` device property.
+
+Users can assign a number of GPIOs to each lookup. Each GPIO is a sub-directory
+with a user-defined name under the ``'con_id'`` group.
+
+**Attribute:** ``/config/gpio-consumer/example-name/con_id/0/key``
+
+**Attribute:** ``/config/gpio-consumer/example-name/con_id/0/offset``
+
+**Attribute:** ``/config/gpio-consumer/example-name/con_id/0/drive``
+
+**Attribute:** ``/config/gpio-consumer/example-name/con_id/0/pull``
+
+**Attribute:** ``/config/gpio-consumer/example-name/con_id/0/active_low``
+
+**Attribute:** ``/config/gpio-consumer/example-name/con_id/0/transitory``
+
+This is a group describing a single GPIO in the ``con_id-gpios`` property.
+
+For virtual consumers created using configfs we use machine lookup tables so
+this group can be considered as a mapping between the filesystem and the fields
+of a single entry in ``'struct gpiod_lookup'``.
+
+The ``'key'`` attribute represents either the name of the chip this GPIO
+belongs to or the GPIO line name. This depends on the value of the ``'offset'``
+attribute: if its value is >= 0, then ``'key'`` represents the label of the
+chip to lookup while ``'offset'`` represents the offset of the line in that
+chip. If ``'offset'`` is < 0, then ``'key'`` represents the name of the line.
+
+The remaining attributes map to the ``'flags'`` field of the GPIO lookup
+struct. The first two take string values as arguments:
+
+**``'drive'``:** ``'push-pull'``, ``'open-drain'``, ``'open-source'``
+**``'pull'``:** ``'pull-up'``, ``'pull-down'``, ``'pull-disabled'``, ``'as-is'``
+
+``'active_low'`` and ``'transitory'`` are boolean attributes.
+
+Activating GPIO consumers
+-------------------------
+
+Once the confiuration is complete, the ``'live'`` attribute must be set to 1 in
+order to instantiate the consumer. It can be set back to 0 to destroy the
+virtual device. The module will synchronously wait for the new simulated device
+to be successfully probed and if this doesn't happen, writing to ``'live'`` will
+result in an error.
+
+Device-tree
+-----------
+
+Virtual GPIO consumers can also be defined in device-tree. The compatible string
+must be: ``"gpio-virtuser"`` with at least one property following the
+standardized GPIO pattern.
+
+An example device-tree code defining a virtual GPIO consumer:
+
+.. code-block :: none
+
+ gpio-virt-consumer {
+ compatible = "gpio-virtuser";
+
+ foo-gpios = <&gpio0 5 GPIO_ACTIVE_LOW>, <&gpio1 2 0>;
+ bar-gpios = <&gpio0 6 0>;
+ };
+
+Controlling virtual GPIO consumers
+----------------------------------
+
+Once active, the device will export debugfs attributes for controlling GPIO
+arrays as well as each requested GPIO line separately. Let's consider the
+following device property: ``foo-gpios = <&gpio0 0 0>, <&gpio0 4 0>;``.
+
+The following debugfs attribute groups will be created:
+
+**Group:** ``/sys/kernel/debug/gpio-virtuser/$dev_name/gpiod:foo/``
+
+This is the group that will contain the attributes for the entire GPIO array.
+
+**Attribute:** ``/sys/kernel/debug/gpio-virtuser/$dev_name/gpiod:foo/values``
+
+**Attribute:** ``/sys/kernel/debug/gpio-virtuser/$dev_name/gpiod:foo/values_atomic``
+
+Both attributes allow to read and set arrays of GPIO values. User must pass
+exactly the number of values that the array contains in the form of a string
+containing zeroes and ones representing inactive and active GPIO states
+respectively. In this example: ``echo 11 > values``.
+
+The ``values_atomic`` attribute works the same as ``values`` but the kernel
+will execute the GPIO driver callbacks in interrupt context.
+
+**Group:** ``/sys/kernel/debug/gpio-virtuser/$dev_name/gpiod:foo:$index/``
+
+This is a group that represents a single GPIO with ``$index`` being its offset
+in the array.
+
+**Attribute:** ``/sys/kernel/debug/gpio-virtuser/$dev_name/gpiod:foo:$index/consumer``
+
+Allows to set and read the consumer label of the GPIO line.
+
+**Attribute:** ``/sys/kernel/debug/gpio-virtuser/$dev_name/gpiod:foo:$index/debounce``
+
+Allows to set and read the debounce period of the GPIO line.
+
+**Attribute:** ``/sys/kernel/debug/gpio-virtuser/$dev_name/gpiod:foo:$index/direction``
+
+**Attribute:** ``/sys/kernel/debug/gpio-virtuser/$dev_name/gpiod:foo:$index/direction_atomic``
+
+These two attributes allow to set the direction of the GPIO line. They accept
+"input" and "output" as values. The atomic variant executes the driver callback
+in interrupt context.
+
+**Attribute:** ``/sys/kernel/debug/gpio-virtuser/$dev_name/gpiod:foo:$index/interrupts``
+
+If the line is requested in input mode, writing ``1`` to this attribute will
+make the module listen for edge interrupts on the GPIO. Writing ``0`` disables
+the monitoring. Reading this attribute returns the current number of registered
+interrupts (both edges).
+
+**Attribute:** ``/sys/kernel/debug/gpio-virtuser/$dev_name/gpiod:foo:$index/value``
+
+**Attribute:** ``/sys/kernel/debug/gpio-virtuser/$dev_name/gpiod:foo:$index/value_atomic``
+
+Both attributes allow to read and set values of individual requested GPIO lines.
+They accept the following values: ``1`` and ``0``.
diff --git a/Documentation/admin-guide/gpio/index.rst b/Documentation/admin-guide/gpio/index.rst
index 460afd2..712f379 100644
--- a/Documentation/admin-guide/gpio/index.rst
+++ b/Documentation/admin-guide/gpio/index.rst
@@ -10,6 +10,7 @@
Character Device Userspace API <../../userspace-api/gpio/chardev>
gpio-aggregator
gpio-sim
+ gpio-virtuser
Obsolete APIs <obsolete>
.. only:: subproject and html
diff --git a/Documentation/admin-guide/hw-vuln/core-scheduling.rst b/Documentation/admin-guide/hw-vuln/core-scheduling.rst
index cf1eeef..a92e10e 100644
--- a/Documentation/admin-guide/hw-vuln/core-scheduling.rst
+++ b/Documentation/admin-guide/hw-vuln/core-scheduling.rst
@@ -67,8 +67,8 @@
will be performed for all tasks in the task group of ``pid``.
arg5:
- userspace pointer to an unsigned long for storing the cookie returned by
- ``PR_SCHED_CORE_GET`` command. Should be 0 for all other commands.
+ userspace pointer to an unsigned long long for storing the cookie returned
+ by ``PR_SCHED_CORE_GET`` command. Should be 0 for all other commands.
In order for a process to push a cookie to, or pull a cookie from a process, it
is required to have the ptrace access mode: `PTRACE_MODE_READ_REALCREDS` to the
diff --git a/Documentation/admin-guide/hw-vuln/spectre.rst b/Documentation/admin-guide/hw-vuln/spectre.rst
index 25a04cd..132e0bc 100644
--- a/Documentation/admin-guide/hw-vuln/spectre.rst
+++ b/Documentation/admin-guide/hw-vuln/spectre.rst
@@ -592,85 +592,19 @@
Mitigation control on the kernel command line
---------------------------------------------
-Spectre variant 2 mitigation can be disabled or force enabled at the
-kernel command line.
+In general the kernel selects reasonable default mitigations for the
+current CPU.
- nospectre_v1
+Spectre default mitigations can be disabled or changed at the kernel
+command line with the following options:
- [X86,PPC] Disable mitigations for Spectre Variant 1
- (bounds check bypass). With this option data leaks are
- possible in the system.
+ - nospectre_v1
+ - nospectre_v2
+ - spectre_v2={option}
+ - spectre_v2_user={option}
+ - spectre_bhi={option}
- nospectre_v2
-
- [X86] Disable all mitigations for the Spectre variant 2
- (indirect branch prediction) vulnerability. System may
- allow data leaks with this option, which is equivalent
- to spectre_v2=off.
-
-
- spectre_v2=
-
- [X86] Control mitigation of Spectre variant 2
- (indirect branch speculation) vulnerability.
- The default operation protects the kernel from
- user space attacks.
-
- on
- unconditionally enable, implies
- spectre_v2_user=on
- off
- unconditionally disable, implies
- spectre_v2_user=off
- auto
- kernel detects whether your CPU model is
- vulnerable
-
- Selecting 'on' will, and 'auto' may, choose a
- mitigation method at run time according to the
- CPU, the available microcode, the setting of the
- CONFIG_MITIGATION_RETPOLINE configuration option,
- and the compiler with which the kernel was built.
-
- Selecting 'on' will also enable the mitigation
- against user space to user space task attacks.
-
- Selecting 'off' will disable both the kernel and
- the user space protections.
-
- Specific mitigations can also be selected manually:
-
- retpoline auto pick between generic,lfence
- retpoline,generic Retpolines
- retpoline,lfence LFENCE; indirect branch
- retpoline,amd alias for retpoline,lfence
- eibrs Enhanced/Auto IBRS
- eibrs,retpoline Enhanced/Auto IBRS + Retpolines
- eibrs,lfence Enhanced/Auto IBRS + LFENCE
- ibrs use IBRS to protect kernel
-
- Not specifying this option is equivalent to
- spectre_v2=auto.
-
- In general the kernel by default selects
- reasonable mitigations for the current CPU. To
- disable Spectre variant 2 mitigations, boot with
- spectre_v2=off. Spectre variant 1 mitigations
- cannot be disabled.
-
- spectre_bhi=
-
- [X86] Control mitigation of Branch History Injection
- (BHI) vulnerability. This setting affects the deployment
- of the HW BHI control and the SW BHB clearing sequence.
-
- on
- (default) Enable the HW or SW mitigation as
- needed.
- off
- Disable the mitigation.
-
-For spectre_v2_user see Documentation/admin-guide/kernel-parameters.txt
+For more details on the available options, refer to Documentation/admin-guide/kernel-parameters.txt
Mitigation selection guide
--------------------------
diff --git a/Documentation/admin-guide/hw-vuln/srso.rst b/Documentation/admin-guide/hw-vuln/srso.rst
index e715bfc..4bd3ce3 100644
--- a/Documentation/admin-guide/hw-vuln/srso.rst
+++ b/Documentation/admin-guide/hw-vuln/srso.rst
@@ -135,7 +135,7 @@
disable the mitigation with spec_rstack_overflow=off.
Similarly, 'Mitigation: IBPB' is another full mitigation type employing
-an indrect branch prediction barrier after having applied the required
+an indirect branch prediction barrier after having applied the required
microcode patch for one's system. This mitigation comes also at
a performance cost.
diff --git a/Documentation/admin-guide/index.rst b/Documentation/admin-guide/index.rst
index 32ea52f1..e85b1ad 100644
--- a/Documentation/admin-guide/index.rst
+++ b/Documentation/admin-guide/index.rst
@@ -121,7 +121,6 @@
parport
perf-security
pm/index
- pmf
pnp
rapidio
RAS/index
diff --git a/Documentation/admin-guide/kdump/kdump.rst b/Documentation/admin-guide/kdump/kdump.rst
index 0302a93..5376890 100644
--- a/Documentation/admin-guide/kdump/kdump.rst
+++ b/Documentation/admin-guide/kdump/kdump.rst
@@ -136,10 +136,6 @@
CONFIG_KEXEC_CORE=y
- Subsequently, CRASH_CORE is selected by KEXEC_CORE::
-
- CONFIG_CRASH_CORE=y
-
2) Enable "sysfs file system support" in "Filesystem" -> "Pseudo
filesystems." This is usually enabled by default::
@@ -168,6 +164,10 @@
CONFIG_CRASH_DUMP=y
+ And this will select VMCORE_INFO and CRASH_RESERVE::
+ CONFIG_VMCORE_INFO=y
+ CONFIG_CRASH_RESERVE=y
+
2) Enable "/proc/vmcore support" under "Filesystems" -> "Pseudo filesystems"::
CONFIG_PROC_VMCORE=y
diff --git a/Documentation/admin-guide/kernel-parameters.rst b/Documentation/admin-guide/kernel-parameters.rst
index e8bdf5e..fdea7c2 100644
--- a/Documentation/admin-guide/kernel-parameters.rst
+++ b/Documentation/admin-guide/kernel-parameters.rst
@@ -118,7 +118,6 @@
HIBERNATION HIBERNATION is enabled.
HW Appropriate hardware is enabled.
HYPER_V HYPERV support is enabled.
- IA-64 IA-64 architecture is enabled.
IMA Integrity measurement architecture is enabled.
IP_PNP IP DHCP, BOOTP, or RARP is enabled.
IPV6 IPv6 support is enabled.
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 396137e..09126bb 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -12,7 +12,7 @@
acpi= [HW,ACPI,X86,ARM64,RISCV64,EARLY]
Advanced Configuration and Power Interface
Format: { force | on | off | strict | noirq | rsdt |
- copy_dsdt }
+ copy_dsdt | nospcr }
force -- enable ACPI if default was off
on -- enable ACPI but allow fallback to DT [arm64,riscv64]
off -- disable ACPI if default was on
@@ -21,8 +21,12 @@
strictly ACPI specification compliant.
rsdt -- prefer RSDT over (default) XSDT
copy_dsdt -- copy DSDT to memory
- For ARM64 and RISCV64, ONLY "acpi=off", "acpi=on" or
- "acpi=force" are available
+ nospcr -- disable console in ACPI SPCR table as
+ default _serial_ console on ARM64
+ For ARM64, ONLY "acpi=off", "acpi=on", "acpi=force" or
+ "acpi=nospcr" are available
+ For RISCV64, ONLY "acpi=off", "acpi=on" or "acpi=force"
+ are available
See also Documentation/power/runtime_pm.rst, pci=noacpi
@@ -431,6 +435,9 @@
arcrimi= [HW,NET] ARCnet - "RIM I" (entirely mem-mapped) cards
Format: <io>,<irq>,<nodeID>
+ arm64.no32bit_el0 [ARM64] Unconditionally disable the execution of
+ 32 bit applications.
+
arm64.nobti [ARM64] Unconditionally disable Branch Target
Identification support
@@ -785,6 +792,25 @@
Documentation/networking/netconsole.rst for an
alternative.
+ <DEVNAME>:<n>.<n>[,options]
+ Use the specified serial port on the serial core bus.
+ The addressing uses DEVNAME of the physical serial port
+ device, followed by the serial core controller instance,
+ and the serial port instance. The options are the same
+ as documented for the ttyS addressing above.
+
+ The mapping of the serial ports to the tty instances
+ can be viewed with:
+
+ $ ls -d /sys/bus/serial-base/devices/*:*.*/tty/*
+ /sys/bus/serial-base/devices/00:04:0.0/tty/ttyS0
+
+ In the above example, the console can be addressed with
+ console=00:04:0.0. Note that a console addressed this
+ way will only get added when the related device driver
+ is ready. The use of an earlycon parameter in addition to
+ the console may be desired for console output early on.
+
uart[8250],io,<addr>[,options]
uart[8250],mmio,<addr>[,options]
uart[8250],mmio16,<addr>[,options]
@@ -1428,27 +1454,6 @@
you are really sure that your UEFI does sane gc and
fulfills the spec otherwise your board may brick.
- efi_fake_mem= nn[KMG]@ss[KMG]:aa[,nn[KMG]@ss[KMG]:aa,..] [EFI,X86,EARLY]
- Add arbitrary attribute to specific memory range by
- updating original EFI memory map.
- Region of memory which aa attribute is added to is
- from ss to ss+nn.
-
- If efi_fake_mem=2G@4G:0x10000,2G@0x10a0000000:0x10000
- is specified, EFI_MEMORY_MORE_RELIABLE(0x10000)
- attribute is added to range 0x100000000-0x180000000 and
- 0x10a0000000-0x1120000000.
-
- If efi_fake_mem=8G@9G:0x40000 is specified, the
- EFI_MEMORY_SP(0x40000) attribute is added to
- range 0x240000000-0x43fffffff.
-
- Using this parameter you can do debugging of EFI memmap
- related features. For example, you can do debugging of
- Address Range Mirroring feature even if your box
- doesn't support it, or mark specific memory as
- "soft reserved".
-
efivar_ssdt= [EFI; X86] Name of an EFI variable that contains an SSDT
that is to be dynamically loaded by Linux. If there are
multiple variables with the same name but with different
@@ -1756,8 +1761,6 @@
for 64-bit NUMA, off otherwise.
Format: 0 | 1 (for off | on)
- hcl= [IA-64] SGI's Hardware Graph compatibility layer
-
hd= [EIDE] (E)IDE hard drive subsystem geometry
Format: <cyl>,<head>,<sect>
@@ -1899,6 +1902,28 @@
Format:
<bus_id>,<clkrate>
+ i2c_touchscreen_props= [HW,ACPI,X86]
+ Set device-properties for ACPI-enumerated I2C-attached
+ touchscreen, to e.g. fix coordinates of upside-down
+ mounted touchscreens. If you need this option please
+ submit a drivers/platform/x86/touchscreen_dmi.c patch
+ adding a DMI quirk for this.
+
+ Format:
+ <ACPI_HW_ID>:<prop_name>=<val>[:prop_name=val][:...]
+ Where <val> is one of:
+ Omit "=<val>" entirely Set a boolean device-property
+ Unsigned number Set a u32 device-property
+ Anything else Set a string device-property
+
+ Examples (split over multiple lines):
+ i2c_touchscreen_props=GDIX1001:touchscreen-inverted-x:
+ touchscreen-inverted-y
+
+ i2c_touchscreen_props=MSSL1680:touchscreen-size-x=1920:
+ touchscreen-size-y=1080:touchscreen-inverted-y:
+ firmware-name=gsl1680-vendor-model.fw:silead,home-button
+
i8042.debug [HW] Toggle i8042 debug mode
i8042.unmask_kbd_data
[HW] Enable printing of interrupt data from the KBD port
@@ -1978,7 +2003,7 @@
for the device. By default it is set to false (0).
ieee754= [MIPS] Select IEEE Std 754 conformance mode
- Format: { strict | legacy | 2008 | relaxed }
+ Format: { strict | legacy | 2008 | relaxed | emulated }
Default: strict
Choose which programs will be accepted for execution
@@ -1998,6 +2023,8 @@
by the FPU
relaxed accept any binaries regardless of whether
supported by the FPU
+ emulated accept any binaries but enable FPU emulator
+ if binary mode is unsupported by the FPU.
The FPU emulator is always able to support both NaN
encodings, so if no FPU hardware is present or it has
@@ -2251,6 +2278,8 @@
no_x2apic_optout
BIOS x2APIC opt-out request will be ignored
nopost disable Interrupt Posting
+ posted_msi
+ enable MSIs delivered as posted interrupts
iomem= Disable strict checking of access to MMIO memory
strict regions from userspace.
@@ -2492,7 +2521,7 @@
keepinitrd [HW,ARM] See retain_initrd.
- kernelcore= [KNL,X86,IA-64,PPC,EARLY]
+ kernelcore= [KNL,X86,PPC,EARLY]
Format: nn[KMGTPE] | nn% | "mirror"
This parameter specifies the amount of memory usable by
the kernel for non-movable allocations. The requested
@@ -2693,6 +2722,24 @@
[KVM,ARM,EARLY] Allow use of GICv4 for direct
injection of LPIs.
+ kvm-arm.wfe_trap_policy=
+ [KVM,ARM] Control when to set WFE instruction trap for
+ KVM VMs. Traps are allowed but not guaranteed by the
+ CPU architecture.
+
+ trap: set WFE instruction trap
+
+ notrap: clear WFE instruction trap
+
+ kvm-arm.wfi_trap_policy=
+ [KVM,ARM] Control when to set WFI instruction trap for
+ KVM VMs. Traps are allowed but not guaranteed by the
+ CPU architecture.
+
+ trap: set WFI instruction trap
+
+ notrap: clear WFI instruction trap
+
kvm_cma_resv_ratio=n [PPC,EARLY]
Reserves given percentage from system memory area for
contiguous memory allocation for KVM hash pagetable
@@ -3132,26 +3179,16 @@
unlikely, in the extreme case this might damage your
hardware.
- ltpc= [NET]
- Format: <io>,<irq>,<dma>
-
lsm.debug [SECURITY] Enable LSM initialization debugging output.
lsm=lsm1,...,lsmN
[SECURITY] Choose order of LSM initialization. This
overrides CONFIG_LSM, and the "security=" parameter.
- machvec= [IA-64] Force the use of a particular machine-vector
- (machvec) in a generic kernel.
- Example: machvec=hpzx1
-
machtype= [Loongson] Share the same kernel image file between
different yeeloong laptops.
Example: machtype=lemote-yeeloong-2f-7inch
- max_addr=nn[KMG] [KNL,BOOT,IA-64] All physical memory greater
- than or equal to this physical address is ignored.
-
maxcpus= [SMP,EARLY] Maximum number of processors that an SMP kernel
will bring up during bootup. maxcpus=n : n >= 0 limits
the kernel to bring up 'n' processors. Surely after
@@ -3377,10 +3414,6 @@
deep - Suspend-To-RAM or equivalent (if supported)
See Documentation/admin-guide/pm/sleep-states.rst.
- mfgpt_irq= [IA-32] Specify the IRQ to use for the
- Multi-Function General Purpose Timers on AMD Geode
- platforms.
-
mfgptfix [X86-32] Fix MFGPT timers on AMD Geode platforms when
the BIOS has incorrectly applied a workaround. TinyBIOS
version 0.98 is known to be affected, 0.99 fixes the
@@ -3393,9 +3426,6 @@
Enable or disable the microcode minimal revision
enforcement for the runtime microcode loader.
- min_addr=nn[KMG] [KNL,BOOT,IA-64] All physical memory below this
- physical address is ignored.
-
mini2440= [ARM,HW,KNL]
Format:[0..2][b][c][t]
Default: "0tb"
@@ -3560,7 +3590,7 @@
mousedev.yres= [MOUSE] Vertical screen resolution, used for devices
reporting absolute coordinates, such as tablets
- movablecore= [KNL,X86,IA-64,PPC,EARLY]
+ movablecore= [KNL,X86,PPC,EARLY]
Format: nn[KMGTPE] | nn%
This parameter is the complement to kernelcore=, it
specifies the amount of memory used for migratable
@@ -3586,11 +3616,6 @@
mtdparts= [MTD]
See drivers/mtd/parsers/cmdlinepart.c
- mtdset= [ARM]
- ARM/S3C2412 JIVE boot control
-
- See arch/arm/mach-s3c/mach-jive.c
-
mtouchusb.raw_coordinates=
[HW] Make the MicroTouch USB driver use raw coordinates
('y', default) or cooked coordinates ('n')
@@ -3776,10 +3801,12 @@
Format: [state][,regs][,debounce][,die]
nmi_watchdog= [KNL,BUGS=X86] Debugging features for SMP kernels
- Format: [panic,][nopanic,][num]
+ Format: [panic,][nopanic,][rNNN,][num]
Valid num: 0 or 1
0 - turn hardlockup detector in nmi_watchdog off
1 - turn hardlockup detector in nmi_watchdog on
+ rNNN - configure the watchdog with raw perf event 0xNNN
+
When panic is specified, panic when an NMI watchdog
timeout occurs (or 'nopanic' to not panic on an NMI
watchdog, if CONFIG_BOOTPARAM_HARDLOCKUP_PANIC is set)
@@ -3803,9 +3830,6 @@
noalign [KNL,ARM]
- noaltinstr [S390,EARLY] Disables alternative instructions
- patching (CPU alternatives feature).
-
noapic [SMP,APIC,EARLY] Tells the kernel to not make use of any
IOAPICs that may be present in the system.
@@ -3837,8 +3861,6 @@
no_entry_flush [PPC,EARLY] Don't flush the L1-D cache when entering the kernel.
- noexec [IA-64]
-
noexec32 [X86-64]
This affects only 32-bit executables.
noexec32=on: enable non-executable mappings (default)
@@ -3858,13 +3880,6 @@
register save and restore. The kernel will only save
legacy floating-point registers on task switch.
- nohalt [IA-64] Tells the kernel not to use the power saving
- function PAL_HALT_LIGHT when idle. This increases
- power-consumption. On the positive side, it reduces
- interrupt wake-up latency, which may improve performance
- in certain environments such as networked servers or
- real-time systems.
-
no_hash_pointers
[KNL,EARLY]
Force pointers printed to the console or buffers to be
@@ -3882,7 +3897,7 @@
nohibernate [HIBERNATION] Disable hibernation and resume.
- nohlt [ARM,ARM64,MICROBLAZE,MIPS,PPC,SH] Forces the kernel to
+ nohlt [ARM,ARM64,MICROBLAZE,MIPS,PPC,RISCV,SH] Forces the kernel to
busy wait in do_idle() and not use the arch_cpu_idle()
implementation; requires CONFIG_GENERIC_IDLE_POLL_SETUP
to be effective. This is useful on platforms where the
@@ -3919,8 +3934,6 @@
remapping.
[Deprecated - use intremap=off]
- nointroute [IA-64]
-
noinvpcid [X86,EARLY] Disable the INVPCID cpu feature.
noiotrap [SH] Disables trapped I/O port accesses.
@@ -3930,8 +3943,6 @@
noisapnp [ISAPNP] Disables ISA PnP code.
- nojitter [IA-64] Disables jitter checking for ITC timers.
-
nokaslr [KNL,EARLY]
When CONFIG_RANDOMIZE_BASE is set, this disables
kernel and module base offset ASLR (Address Space
@@ -3946,8 +3957,6 @@
nolapic_timer [X86-32,APIC,EARLY] Do not use the local APIC timer.
- nomca [IA-64] Disable machine check abort handling
-
nomce [X86-32] Disable Machine Check Exception
nomfgpt [X86-32] Disable Multi-Function General Purpose
@@ -3999,8 +4008,6 @@
noresume [SWSUSP] Disables resume and restores original swap
space.
- nosbagart [IA-64]
-
no-scroll [VGA] Disables scrollback.
This is required for the Braillex ib80-piezo Braille
reader made by F.H. Papenmeier (Germany).
@@ -4044,9 +4051,9 @@
prediction) vulnerability. System may allow data
leaks with this option.
- no-steal-acc [X86,PV_OPS,ARM64,PPC/PSERIES,RISCV,EARLY] Disable
- paravirtualized steal time accounting. steal time is
- computed, but won't influence scheduler behaviour
+ no-steal-acc [X86,PV_OPS,ARM64,PPC/PSERIES,RISCV,LOONGARCH,EARLY]
+ Disable paravirtualized steal time accounting. steal time
+ is computed, but won't influence scheduler behaviour
nosync [HW,M68K] Disables sync negotiation for all devices.
@@ -4101,19 +4108,6 @@
parameter, xsave area per process might occupy more
memory on xsaves enabled systems.
- nps_mtm_hs_ctr= [KNL,ARC]
- This parameter sets the maximum duration, in
- cycles, each HW thread of the CTOP can run
- without interruptions, before HW switches it.
- The actual maximum duration is 16 times this
- parameter's value.
- Format: integer between 1 and 255
- Default: 255
-
- nptcg= [IA-64] Override max number of concurrent global TLB
- purges which is reported from either PAL_VM_SUMMARY or
- SAL PALO.
-
nr_cpus= [SMP,EARLY] Maximum number of processors that an SMP kernel
could support. nr_cpus=n : n >= 1 limits the kernel to
support 'n' processors. It could be larger than the
@@ -4173,13 +4167,11 @@
page_alloc.shuffle=
[KNL] Boolean flag to control whether the page allocator
- should randomize its free lists. The randomization may
- be automatically enabled if the kernel detects it is
- running on a platform with a direct-mapped memory-side
- cache, and this parameter can be used to
- override/disable that behavior. The state of the flag
- can be read from sysfs at:
+ should randomize its free lists. This parameter can be
+ used to enable/disable page randomization. The state of
+ the flag can be read from sysfs at:
/sys/module/page_alloc/parameters/shuffle.
+ This parameter is only available if CONFIG_SHUFFLE_PAGE_ALLOCATOR=y.
page_owner= [KNL,EARLY] Boot-time page_owner enabling option.
Storage of the information about who allocated
@@ -4589,6 +4581,38 @@
bridges without forcing it upstream. Note:
this removes isolation between devices and
may put more devices in an IOMMU group.
+ config_acs=
+ Format:
+ <ACS flags>@<pci_dev>[; ...]
+ Specify one or more PCI devices (in the format
+ specified above) optionally prepended with flags
+ and separated by semicolons. The respective
+ capabilities will be enabled, disabled or
+ unchanged based on what is specified in
+ flags.
+
+ ACS Flags is defined as follows:
+ bit-0 : ACS Source Validation
+ bit-1 : ACS Translation Blocking
+ bit-2 : ACS P2P Request Redirect
+ bit-3 : ACS P2P Completion Redirect
+ bit-4 : ACS Upstream Forwarding
+ bit-5 : ACS P2P Egress Control
+ bit-6 : ACS Direct Translated P2P
+ Each bit can be marked as:
+ '0' – force disabled
+ '1' – force enabled
+ 'x' – unchanged
+ For example,
+ pci=config_acs=10x
+ would configure all devices that support
+ ACS to enable P2P Request Redirect, disable
+ Translation Blocking, and leave Source
+ Validation unchanged from whatever power-up
+ or firmware set it to.
+
+ Note: this may remove isolation between devices
+ and may put more devices in an IOMMU group.
force_floating [S390] Force usage of floating interrupts.
nomio [S390] Do not use MIO instructions.
norid [S390] ignore the RID field and force use of
@@ -4722,7 +4746,9 @@
none - Limited to cond_resched() calls
voluntary - Limited to cond_resched() and might_sleep() calls
full - Any section that isn't explicitly preempt disabled
- can be preempted anytime.
+ can be preempted anytime. Tasks will also yield
+ contended spinlocks (if the critical section isn't
+ explicitly preempt disabled beyond the lock itself).
print-fatal-signals=
[KNL] debug: print fatal signals
@@ -4772,11 +4798,9 @@
profile= [KNL] Enable kernel profiling via /proc/profile
Format: [<profiletype>,]<number>
- Param: <profiletype>: "schedule", "sleep", or "kvm"
+ Param: <profiletype>: "schedule" or "kvm"
[defaults to kernel profiling]
Param: "schedule" - profile schedule points.
- Param: "sleep" - profile D-state sleeping (millisecs).
- Requires CONFIG_SCHEDSTATS
Param: "kvm" - profile VM exits.
Param: <number> - step/bucket size as a power of 2 for
statistical time based profiling.
@@ -4785,7 +4809,9 @@
prot_virt= [S390] enable hosting protected virtual machines
isolated from the hypervisor (if hardware supports
- that).
+ that). If enabled, the default kernel base address
+ might be overridden even when Kernel Address Space
+ Layout Randomization is disabled.
Format: <bool>
psi= [KNL] Enable or disable pressure stall information
@@ -4986,6 +5012,14 @@
the ->nocb_bypass queue. The definition of "too
many" is supplied by this kernel boot parameter.
+ rcutree.nohz_full_patience_delay= [KNL]
+ On callback-offloaded (rcu_nocbs) CPUs, avoid
+ disturbing RCU unless the grace period has
+ reached the specified age in milliseconds.
+ Defaults to zero. Large values will be capped
+ at five seconds. All values will be rounded down
+ to the nearest value representable by jiffies.
+
rcutree.qhimark= [KNL]
Set threshold of queued RCU callbacks beyond which
batch limiting is disabled.
@@ -5096,6 +5130,20 @@
delay, memory pressure or callback list growing too
big.
+ rcutree.rcu_normal_wake_from_gp= [KNL]
+ Reduces a latency of synchronize_rcu() call. This approach
+ maintains its own track of synchronize_rcu() callers, so it
+ does not interact with regular callbacks because it does not
+ use a call_rcu[_hurry]() path. Please note, this is for a
+ normal grace period.
+
+ How to enable it:
+
+ echo 1 > /sys/module/rcutree/parameters/rcu_normal_wake_from_gp
+ or pass a boot parameter "rcutree.rcu_normal_wake_from_gp=1"
+
+ Default is 0.
+
rcuscale.gp_async= [KNL]
Measure performance of asynchronous
grace-period primitives such as call_rcu().
@@ -5642,6 +5690,28 @@
them. If <base> is less than 0x10000, the region
is assumed to be I/O ports; otherwise it is memory.
+ reserve_mem= [RAM]
+ Format: nn[KNG]:<align>:<label>
+ Reserve physical memory and label it with a name that
+ other subsystems can use to access it. This is typically
+ used for systems that do not wipe the RAM, and this command
+ line will try to reserve the same physical memory on
+ soft reboots. Note, it is not guaranteed to be the same
+ location. For example, if anything about the system changes
+ or if booting a different kernel. It can also fail if KASLR
+ places the kernel at the location of where the RAM reservation
+ was from a previous boot, the new reservation will be at a
+ different location.
+ Any subsystem using this feature must add a way to verify
+ that the contents of the physical memory is from a previous
+ boot, as there may be cases where the memory will not be
+ located at the same location.
+
+ The format is size:align:label for example, to request
+ 12 megabytes of 4096 alignment for ramoops:
+
+ reserve_mem=12M:4096:oops ramoops.mem_name=oops
+
reservetop= [X86-32,EARLY]
Format: nn[KMG]
Reserves a hole at the top of the kernel virtual
@@ -5720,9 +5790,6 @@
2 The "airplane mode" button toggles between everything
blocked and everything unblocked.
- rhash_entries= [KNL,NET]
- Set number of hash buckets for route cache
-
ring3mwait=disable
[KNL] Disable ring 3 MONITOR/MWAIT feature on supported
CPUs.
@@ -5812,6 +5879,7 @@
but is useful for debugging and performance tuning.
sched_thermal_decay_shift=
+ [Deprecated]
[KNL, SMP] Set a decay shift for scheduler thermal
pressure signal. Thermal pressure signal follows the
default decay period of other scheduler pelt
@@ -5955,9 +6023,6 @@
apic=verbose is specified.
Example: apic=debug show_lapic=all
- simeth= [IA-64]
- simscsi=
-
slab_debug[=options[,slabs][;[options[,slabs]]...] [MM]
Enabling slab_debug allows one to determine the
culprit if slab objects become corrupted. Enabling
@@ -6073,9 +6138,15 @@
deployment of the HW BHI control and the SW BHB
clearing sequence.
- on - (default) Enable the HW or SW mitigation
- as needed.
- off - Disable the mitigation.
+ on - (default) Enable the HW or SW mitigation as
+ needed. This protects the kernel from
+ both syscalls and VMs.
+ vmexit - On systems which don't have the HW mitigation
+ available, enable the SW mitigation on vmexit
+ ONLY. On such systems, the host kernel is
+ protected from VM-originated BHI attacks, but
+ may still be vulnerable to syscall attacks.
+ off - Disable the mitigation.
spectre_v2= [X86,EARLY] Control mitigation of Spectre variant 2
(indirect branch speculation) vulnerability.
@@ -6219,11 +6290,6 @@
Not specifying this option is equivalent to
spec_store_bypass_disable=auto.
- spia_io_base= [HW,MTD]
- spia_fio_base=
- spia_pedr=
- spia_peddr=
-
split_lock_detect=
[X86] Enable split lock detection or bus lock detection
@@ -6479,7 +6545,7 @@
This parameter controls use of the Protected
Execution Facility on pSeries.
- swiotlb= [ARM,IA-64,PPC,MIPS,X86,EARLY]
+ swiotlb= [ARM,PPC,MIPS,X86,S390,EARLY]
Format: { <int> [,<int>] | force | noforce }
<int> -- Number of I/O TLB slabs
<int> -- Second integer after comma. Number of swiotlb
@@ -6560,12 +6626,6 @@
e.g. base its process migration decisions on it.
Default is on.
- topology_updates= [KNL, PPC, NUMA]
- Format: {off}
- Specify if the kernel should ignore (off)
- topology updates sent by the hypervisor to this
- LPAR.
-
torture.disable_onoff_at_boot= [KNL]
Prevent the CPU-hotplug component of torturing
until after init has spawned.
@@ -6585,8 +6645,6 @@
torture.verbose_sleep_duration= [KNL]
Duration of each verbose-printk() sleep in jiffies.
- tp720= [HW,PS2]
-
tpm_suspend_pcr=[HW,TPM]
Format: integer pcr id
Specify that at suspend time, the tpm driver
@@ -6749,6 +6807,7 @@
- "tpm"
- "tee"
- "caam"
+ - "dcp"
If not specified then it defaults to iterating through
the trust source list starting with TPM and assigns the
first trust source as a backend which is initialized
@@ -6764,6 +6823,18 @@
If not specified, "default" is used. In this case,
the RNG's choice is left to each individual trust source.
+ trusted.dcp_use_otp_key
+ This is intended to be used in combination with
+ trusted.source=dcp and will select the DCP OTP key
+ instead of the DCP UNIQUE key blob encryption.
+
+ trusted.dcp_skip_zk_test
+ This is intended to be used in combination with
+ trusted.source=dcp and will disable the check if the
+ blob key is all zeros. This is helpful for situations where
+ having this key zero'ed is acceptable. E.g. in testing
+ scenarios.
+
tsc= Disable clocksource stability checks for TSC.
Format: <string>
[x86] reliable: mark tsc clocksource as reliable, this
@@ -7017,6 +7088,9 @@
usb-storage.delay_use=
[UMS] The delay in seconds before a new device is
scanned for Logical Units (default 1).
+ Optionally the delay in milliseconds if the value has
+ suffix with "ms".
+ Example: delay_use=2567ms
usb-storage.quirks=
[UMS] A list of quirks entries to supplement or
@@ -7110,9 +7184,6 @@
Try vdso32=0 if you encounter an error that says:
dl_main: Assertion `(void *) ph->p_vaddr == _rtld_local._dl_sysinfo_dso' failed!
- vector= [IA-64,SMP]
- vector=percpu: enable percpu vector domain
-
video= [FB,EARLY] Frame buffer configuration
See Documentation/fb/modedb.rst.
@@ -7163,9 +7234,12 @@
vmalloc=nn[KMG] [KNL,BOOT,EARLY] Forces the vmalloc area to have an
exact size of <nn>. This can be used to increase
- the minimum size (128MB on x86). It can also be
- used to decrease the size and leave more room
- for directly mapped kernel RAM.
+ the minimum size (128MB on x86, arm32 platforms).
+ It can also be used to decrease the size and leave more room
+ for directly mapped kernel RAM. Note that this parameter does
+ not exist on many other platforms (including arm64, alpha,
+ loongarch, arc, csky, hexagon, microblaze, mips, nios2, openrisc,
+ parisc, m64k, powerpc, riscv, sh, um, xtensa, s390, sparc).
vmcp_cma=nn[MG] [KNL,S390,EARLY]
Sets the memory size reserved for contiguous memory
@@ -7324,7 +7398,7 @@
This can be changed after boot by writing to the
matching /sys/module/workqueue/parameters file. All
workqueues with the "default" affinity scope will be
- updated accordignly.
+ updated accordingly.
workqueue.debug_force_rr_cpu
Workqueue used to implicitly guarantee that work
@@ -7370,17 +7444,18 @@
Crash from Xen panic notifier, without executing late
panic() code such as dumping handler.
+ xen_mc_debug [X86,XEN,EARLY]
+ Enable multicall debugging when running as a Xen PV guest.
+ Enabling this feature will reduce performance a little
+ bit, so it should only be enabled for obtaining extended
+ debug data in case of multicall errors.
+
xen_msr_safe= [X86,XEN,EARLY]
Format: <bool>
Select whether to always use non-faulting (safe) MSR
access functions when running as Xen PV guest. The
default value is controlled by CONFIG_XEN_PV_MSR_SAFE.
- xen_nopvspin [X86,XEN,EARLY]
- Disables the qspinlock slowpath using Xen PV optimizations.
- This parameter is obsoleted by "nopvspin" parameter, which
- has equivalent effect for XEN platform.
-
xen_nopv [X86]
Disables the PV optimizations forcing the HVM guest to
run as generic HVM guest with no PV drivers.
@@ -7468,4 +7543,3 @@
memory, and other data can't be written using
xmon commands.
off xmon is disabled.
-
diff --git a/Documentation/admin-guide/media/em28xx-cardlist.rst b/Documentation/admin-guide/media/em28xx-cardlist.rst
index ace6571..7dac079 100644
--- a/Documentation/admin-guide/media/em28xx-cardlist.rst
+++ b/Documentation/admin-guide/media/em28xx-cardlist.rst
@@ -438,3 +438,11 @@
- MyGica iGrabber
- em2860
- 1f4d:1abe
+ * - 106
+ - Hauppauge USB QuadHD ATSC
+ - em28274
+ - 2040:846d
+ * - 107
+ - MyGica UTV3 Analog USB2.0 TV Box
+ - em2860
+ - eb1a:2860
diff --git a/Documentation/admin-guide/media/ipu6-isys.rst b/Documentation/admin-guide/media/ipu6-isys.rst
new file mode 100644
index 0000000..d050868
--- /dev/null
+++ b/Documentation/admin-guide/media/ipu6-isys.rst
@@ -0,0 +1,161 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+.. include:: <isonum.txt>
+
+========================================================
+Intel Image Processing Unit 6 (IPU6) Input System driver
+========================================================
+
+Copyright |copy| 2023--2024 Intel Corporation
+
+Introduction
+============
+
+This file documents the Intel IPU6 (6th generation Image Processing Unit)
+Input System (MIPI CSI2 receiver) drivers located under
+drivers/media/pci/intel/ipu6.
+
+The Intel IPU6 can be found in certain Intel SoCs but not in all SKUs:
+
+* Tiger Lake
+* Jasper Lake
+* Alder Lake
+* Raptor Lake
+* Meteor Lake
+
+Intel IPU6 is made up of two components - Input System (ISYS) and Processing
+System (PSYS).
+
+The Input System mainly works as MIPI CSI-2 receiver which receives and
+processes the image data from the sensors and outputs the frames to memory.
+
+There are 2 driver modules - intel-ipu6 and intel-ipu6-isys. intel-ipu6 is an
+IPU6 common driver which does PCI configuration, firmware loading and parsing,
+firmware authentication, DMA mapping and IPU-MMU (internal Memory mapping Unit)
+configuration. intel_ipu6_isys implements V4L2, Media Controller and V4L2
+sub-device interfaces. The IPU6 ISYS driver supports camera sensors connected
+to the IPU6 ISYS through V4L2 sub-device sensor drivers.
+
+.. Note:: See Documentation/driver-api/media/drivers/ipu6.rst for more
+ information about the IPU6 hardware.
+
+Input system driver
+===================
+
+The Input System driver mainly configures CSI-2 D-PHY, constructs the firmware
+stream configuration, sends commands to firmware, gets response from hardware
+and firmware and then returns buffers to user. The ISYS is represented as
+several V4L2 sub-devices as well as video nodes.
+
+.. kernel-figure:: ipu6_isys_graph.svg
+ :alt: ipu6 isys media graph with multiple streams support
+
+ IPU6 ISYS media graph with multiple streams support
+
+The graph has been produced using the following command:
+
+.. code-block:: none
+
+ fdp -Gsplines=true -Tsvg < dot > dot.svg
+
+Capturing frames with IPU6 ISYS
+-------------------------------
+
+IPU6 ISYS is used to capture frames from the camera sensors connected to the
+CSI2 ports. The supported input formats of ISYS are listed in table below:
+
+.. tabularcolumns:: |p{0.8cm}|p{4.0cm}|p{4.0cm}|
+
+.. flat-table::
+ :header-rows: 1
+
+ * - IPU6 ISYS supported input formats
+
+ * - RGB565, RGB888
+
+ * - UYVY8, YUYV8
+
+ * - RAW8, RAW10, RAW12
+
+.. _ipu6_isys_capture_examples:
+
+Examples
+~~~~~~~~
+
+Here is an example of IPU6 ISYS raw capture on Dell XPS 9315 laptop. On this
+machine, ov01a10 sensor is connected to IPU ISYS CSI-2 port 2, which can
+generate images at sBGGR10 with resolution 1280x800.
+
+Using the media controller APIs, we can configure ov01a10 sensor by
+media-ctl [#f1]_ and yavta [#f2]_ to transmit frames to IPU6 ISYS.
+
+.. code-block:: none
+
+ # Example 1 capture frame from ov01a10 camera sensor
+ # This example assumes /dev/media0 as the IPU ISYS media device
+ export MDEV=/dev/media0
+
+ # Establish the link for the media devices using media-ctl
+ media-ctl -d $MDEV -l "\"ov01a10 3-0036\":0 -> \"Intel IPU6 CSI2 2\":0[1]"
+
+ # Set the format for the media devices
+ media-ctl -d $MDEV -V "ov01a10:0 [fmt:SBGGR10/1280x800]"
+ media-ctl -d $MDEV -V "Intel IPU6 CSI2 2:0 [fmt:SBGGR10/1280x800]"
+ media-ctl -d $MDEV -V "Intel IPU6 CSI2 2:1 [fmt:SBGGR10/1280x800]"
+
+Once the media pipeline is configured, desired sensor specific settings
+(such as exposure and gain settings) can be set, using the yavta tool.
+
+e.g
+
+.. code-block:: none
+
+ # and that ov01a10 sensor is connected to i2c bus 3 with address 0x36
+ export SDEV=$(media-ctl -d $MDEV -e "ov01a10 3-0036")
+
+ yavta -w 0x009e0903 400 $SDEV
+ yavta -w 0x009e0913 1000 $SDEV
+ yavta -w 0x009e0911 2000 $SDEV
+
+Once the desired sensor settings are set, frame captures can be done as below.
+
+e.g
+
+.. code-block:: none
+
+ yavta --data-prefix -u -c10 -n5 -I -s 1280x800 --file=/tmp/frame-#.bin \
+ -f SBGGR10 $(media-ctl -d $MDEV -e "Intel IPU6 ISYS Capture 0")
+
+With the above command, 10 frames are captured at 1280x800 resolution with
+sBGGR10 format. The captured frames are available as /tmp/frame-#.bin files.
+
+Here is another example of IPU6 ISYS RAW and metadata capture from camera
+sensor ov2740 on Lenovo X1 Yoga laptop.
+
+.. code-block:: none
+
+ media-ctl -l "\"ov2740 14-0036\":0 -> \"Intel IPU6 CSI2 1\":0[1]"
+ media-ctl -l "\"Intel IPU6 CSI2 1\":1 -> \"Intel IPU6 ISYS Capture 0\":0[1]"
+ media-ctl -l "\"Intel IPU6 CSI2 1\":2 -> \"Intel IPU6 ISYS Capture 1\":0[1]"
+
+ # set routing
+ media-ctl -R "\"Intel IPU6 CSI2 1\" [0/0->1/0[1],0/1->2/1[1]]"
+
+ media-ctl -V "\"Intel IPU6 CSI2 1\":0/0 [fmt:SGRBG10/1932x1092]"
+ media-ctl -V "\"Intel IPU6 CSI2 1\":0/1 [fmt:GENERIC_8/97x1]"
+ media-ctl -V "\"Intel IPU6 CSI2 1\":1/0 [fmt:SGRBG10/1932x1092]"
+ media-ctl -V "\"Intel IPU6 CSI2 1\":2/1 [fmt:GENERIC_8/97x1]"
+
+ CAPTURE_DEV=$(media-ctl -e "Intel IPU6 ISYS Capture 0")
+ ./yavta --data-prefix -c100 -n5 -I -s1932x1092 --file=/tmp/frame-#.bin \
+ -f SGRBG10 ${CAPTURE_DEV}
+
+ CAPTURE_META=$(media-ctl -e "Intel IPU6 ISYS Capture 1")
+ ./yavta --data-prefix -c100 -n5 -I -s97x1 -B meta-capture \
+ --file=/tmp/meta-#.bin -f GENERIC_8 ${CAPTURE_META}
+
+References
+==========
+
+.. [#f1] https://git.ideasonboard.org/media-ctl.git
+.. [#f2] https://git.ideasonboard.org/yavta.git
diff --git a/Documentation/admin-guide/media/ipu6_isys_graph.svg b/Documentation/admin-guide/media/ipu6_isys_graph.svg
new file mode 100644
index 0000000..c8539ef
--- /dev/null
+++ b/Documentation/admin-guide/media/ipu6_isys_graph.svg
@@ -0,0 +1,548 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
+ "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<!-- Generated by graphviz version 2.43.0 (0)
+ -->
+<!-- Title: board Pages: 1 -->
+<svg width="1703pt" height="1473pt"
+ viewBox="0.00 0.00 1703.00 1473.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 1469)">
+<title>board</title>
+<polygon fill="white" stroke="transparent" points="-4,4 -4,-1469 1699,-1469 1699,4 -4,4"/>
+<!-- n00000001 -->
+<g id="node1" class="node">
+<title>n00000001</title>
+<polygon fill="yellow" stroke="black" points="832.99,-750.08 629.99,-750.08 629.99,-712.08 832.99,-712.08 832.99,-750.08"/>
+<text text-anchor="middle" x="731.49" y="-734.88" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 0</text>
+<text text-anchor="middle" x="731.49" y="-719.88" font-family="Times,serif" font-size="14.00">/dev/video0</text>
+</g>
+<!-- n00000005 -->
+<g id="node2" class="node">
+<title>n00000005</title>
+<polygon fill="yellow" stroke="black" points="1396.59,-771.88 1193.59,-771.88 1193.59,-733.88 1396.59,-733.88 1396.59,-771.88"/>
+<text text-anchor="middle" x="1295.09" y="-756.68" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 1</text>
+<text text-anchor="middle" x="1295.09" y="-741.68" font-family="Times,serif" font-size="14.00">/dev/video1</text>
+</g>
+<!-- n00000009 -->
+<g id="node3" class="node">
+<title>n00000009</title>
+<polygon fill="yellow" stroke="black" points="1118.52,-690.47 915.52,-690.47 915.52,-652.47 1118.52,-652.47 1118.52,-690.47"/>
+<text text-anchor="middle" x="1017.02" y="-675.27" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 2</text>
+<text text-anchor="middle" x="1017.02" y="-660.27" font-family="Times,serif" font-size="14.00">/dev/video2</text>
+</g>
+<!-- n0000000d -->
+<g id="node4" class="node">
+<title>n0000000d</title>
+<polygon fill="yellow" stroke="black" points="1105.89,-838.84 902.89,-838.84 902.89,-800.84 1105.89,-800.84 1105.89,-838.84"/>
+<text text-anchor="middle" x="1004.39" y="-823.64" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 3</text>
+<text text-anchor="middle" x="1004.39" y="-808.64" font-family="Times,serif" font-size="14.00">/dev/video3</text>
+</g>
+<!-- n00000011 -->
+<g id="node5" class="node">
+<title>n00000011</title>
+<polygon fill="yellow" stroke="black" points="1279.22,-992.95 1076.22,-992.95 1076.22,-954.95 1279.22,-954.95 1279.22,-992.95"/>
+<text text-anchor="middle" x="1177.72" y="-977.75" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 4</text>
+<text text-anchor="middle" x="1177.72" y="-962.75" font-family="Times,serif" font-size="14.00">/dev/video4</text>
+</g>
+<!-- n00000015 -->
+<g id="node6" class="node">
+<title>n00000015</title>
+<polygon fill="yellow" stroke="black" points="939.18,-984.91 736.18,-984.91 736.18,-946.91 939.18,-946.91 939.18,-984.91"/>
+<text text-anchor="middle" x="837.68" y="-969.71" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 5</text>
+<text text-anchor="middle" x="837.68" y="-954.71" font-family="Times,serif" font-size="14.00">/dev/video5</text>
+</g>
+<!-- n00000019 -->
+<g id="node7" class="node">
+<title>n00000019</title>
+<polygon fill="yellow" stroke="black" points="957.87,-527.99 754.87,-527.99 754.87,-489.99 957.87,-489.99 957.87,-527.99"/>
+<text text-anchor="middle" x="856.37" y="-512.79" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 6</text>
+<text text-anchor="middle" x="856.37" y="-497.79" font-family="Times,serif" font-size="14.00">/dev/video6</text>
+</g>
+<!-- n0000001d -->
+<g id="node8" class="node">
+<title>n0000001d</title>
+<polygon fill="yellow" stroke="black" points="1291.02,-542.15 1088.02,-542.15 1088.02,-504.15 1291.02,-504.15 1291.02,-542.15"/>
+<text text-anchor="middle" x="1189.52" y="-526.95" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 7</text>
+<text text-anchor="middle" x="1189.52" y="-511.95" font-family="Times,serif" font-size="14.00">/dev/video7</text>
+</g>
+<!-- n00000021 -->
+<g id="node9" class="node">
+<title>n00000021</title>
+<polygon fill="yellow" stroke="black" points="202.74,-611.46 -0.26,-611.46 -0.26,-573.46 202.74,-573.46 202.74,-611.46"/>
+<text text-anchor="middle" x="101.24" y="-596.26" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 8</text>
+<text text-anchor="middle" x="101.24" y="-581.26" font-family="Times,serif" font-size="14.00">/dev/video8</text>
+</g>
+<!-- n00000025 -->
+<g id="node10" class="node">
+<title>n00000025</title>
+<polygon fill="yellow" stroke="black" points="764.86,-637.89 561.86,-637.89 561.86,-599.89 764.86,-599.89 764.86,-637.89"/>
+<text text-anchor="middle" x="663.36" y="-622.69" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 9</text>
+<text text-anchor="middle" x="663.36" y="-607.69" font-family="Times,serif" font-size="14.00">/dev/video9</text>
+</g>
+<!-- n00000029 -->
+<g id="node11" class="node">
+<title>n00000029</title>
+<polygon fill="yellow" stroke="black" points="358.62,-519.5 146.62,-519.5 146.62,-481.5 358.62,-481.5 358.62,-519.5"/>
+<text text-anchor="middle" x="252.62" y="-504.3" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 10</text>
+<text text-anchor="middle" x="252.62" y="-489.3" font-family="Times,serif" font-size="14.00">/dev/video10</text>
+</g>
+<!-- n0000002d -->
+<g id="node12" class="node">
+<title>n0000002d</title>
+<polygon fill="yellow" stroke="black" points="481.4,-662.59 269.4,-662.59 269.4,-624.59 481.4,-624.59 481.4,-662.59"/>
+<text text-anchor="middle" x="375.4" y="-647.39" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 11</text>
+<text text-anchor="middle" x="375.4" y="-632.39" font-family="Times,serif" font-size="14.00">/dev/video11</text>
+</g>
+<!-- n00000031 -->
+<g id="node13" class="node">
+<title>n00000031</title>
+<polygon fill="yellow" stroke="black" points="637.17,-837.47 425.17,-837.47 425.17,-799.47 637.17,-799.47 637.17,-837.47"/>
+<text text-anchor="middle" x="531.17" y="-822.27" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 12</text>
+<text text-anchor="middle" x="531.17" y="-807.27" font-family="Times,serif" font-size="14.00">/dev/video12</text>
+</g>
+<!-- n00000035 -->
+<g id="node14" class="node">
+<title>n00000035</title>
+<polygon fill="yellow" stroke="black" points="337.75,-833.67 125.75,-833.67 125.75,-795.67 337.75,-795.67 337.75,-833.67"/>
+<text text-anchor="middle" x="231.75" y="-818.47" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 13</text>
+<text text-anchor="middle" x="231.75" y="-803.47" font-family="Times,serif" font-size="14.00">/dev/video13</text>
+</g>
+<!-- n00000039 -->
+<g id="node15" class="node">
+<title>n00000039</title>
+<polygon fill="yellow" stroke="black" points="393.07,-317.96 181.07,-317.96 181.07,-279.96 393.07,-279.96 393.07,-317.96"/>
+<text text-anchor="middle" x="287.07" y="-302.76" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 14</text>
+<text text-anchor="middle" x="287.07" y="-287.76" font-family="Times,serif" font-size="14.00">/dev/video14</text>
+</g>
+<!-- n0000003d -->
+<g id="node16" class="node">
+<title>n0000003d</title>
+<polygon fill="yellow" stroke="black" points="701.46,-391.04 489.46,-391.04 489.46,-353.04 701.46,-353.04 701.46,-391.04"/>
+<text text-anchor="middle" x="595.46" y="-375.84" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 15</text>
+<text text-anchor="middle" x="595.46" y="-360.84" font-family="Times,serif" font-size="14.00">/dev/video15</text>
+</g>
+<!-- n00000041 -->
+<g id="node17" class="node">
+<title>n00000041</title>
+<polygon fill="yellow" stroke="black" points="212.45,-1228.8 0.45,-1228.8 0.45,-1190.8 212.45,-1190.8 212.45,-1228.8"/>
+<text text-anchor="middle" x="106.45" y="-1213.6" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 16</text>
+<text text-anchor="middle" x="106.45" y="-1198.6" font-family="Times,serif" font-size="14.00">/dev/video16</text>
+</g>
+<!-- n00000045 -->
+<g id="node18" class="node">
+<title>n00000045</title>
+<polygon fill="yellow" stroke="black" points="784.86,-1252.38 572.86,-1252.38 572.86,-1214.38 784.86,-1214.38 784.86,-1252.38"/>
+<text text-anchor="middle" x="678.86" y="-1237.18" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 17</text>
+<text text-anchor="middle" x="678.86" y="-1222.18" font-family="Times,serif" font-size="14.00">/dev/video17</text>
+</g>
+<!-- n00000049 -->
+<g id="node19" class="node">
+<title>n00000049</title>
+<polygon fill="yellow" stroke="black" points="503.14,-1169.96 291.14,-1169.96 291.14,-1131.96 503.14,-1131.96 503.14,-1169.96"/>
+<text text-anchor="middle" x="397.14" y="-1154.76" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 18</text>
+<text text-anchor="middle" x="397.14" y="-1139.76" font-family="Times,serif" font-size="14.00">/dev/video18</text>
+</g>
+<!-- n0000004d -->
+<g id="node20" class="node">
+<title>n0000004d</title>
+<polygon fill="yellow" stroke="black" points="492.62,-1319.4 280.62,-1319.4 280.62,-1281.4 492.62,-1281.4 492.62,-1319.4"/>
+<text text-anchor="middle" x="386.62" y="-1304.2" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 19</text>
+<text text-anchor="middle" x="386.62" y="-1289.2" font-family="Times,serif" font-size="14.00">/dev/video19</text>
+</g>
+<!-- n00000051 -->
+<g id="node21" class="node">
+<title>n00000051</title>
+<polygon fill="yellow" stroke="black" points="680.74,-1464.66 468.74,-1464.66 468.74,-1426.66 680.74,-1426.66 680.74,-1464.66"/>
+<text text-anchor="middle" x="574.74" y="-1449.46" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 20</text>
+<text text-anchor="middle" x="574.74" y="-1434.46" font-family="Times,serif" font-size="14.00">/dev/video20</text>
+</g>
+<!-- n00000055 -->
+<g id="node22" class="node">
+<title>n00000055</title>
+<polygon fill="yellow" stroke="black" points="302.42,-1452.56 90.42,-1452.56 90.42,-1414.56 302.42,-1414.56 302.42,-1452.56"/>
+<text text-anchor="middle" x="196.42" y="-1437.36" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 21</text>
+<text text-anchor="middle" x="196.42" y="-1422.36" font-family="Times,serif" font-size="14.00">/dev/video21</text>
+</g>
+<!-- n00000059 -->
+<g id="node23" class="node">
+<title>n00000059</title>
+<polygon fill="yellow" stroke="black" points="319.89,-1018.32 107.89,-1018.32 107.89,-980.32 319.89,-980.32 319.89,-1018.32"/>
+<text text-anchor="middle" x="213.89" y="-1003.12" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 22</text>
+<text text-anchor="middle" x="213.89" y="-988.12" font-family="Times,serif" font-size="14.00">/dev/video22</text>
+</g>
+<!-- n0000005d -->
+<g id="node24" class="node">
+<title>n0000005d</title>
+<polygon fill="yellow" stroke="black" points="692.62,-1031.39 480.62,-1031.39 480.62,-993.39 692.62,-993.39 692.62,-1031.39"/>
+<text text-anchor="middle" x="586.62" y="-1016.19" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 23</text>
+<text text-anchor="middle" x="586.62" y="-1001.19" font-family="Times,serif" font-size="14.00">/dev/video23</text>
+</g>
+<!-- n00000061 -->
+<g id="node25" class="node">
+<title>n00000061</title>
+<polygon fill="yellow" stroke="black" points="1122.45,-248.8 910.45,-248.8 910.45,-210.8 1122.45,-210.8 1122.45,-248.8"/>
+<text text-anchor="middle" x="1016.45" y="-233.6" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 24</text>
+<text text-anchor="middle" x="1016.45" y="-218.6" font-family="Times,serif" font-size="14.00">/dev/video24</text>
+</g>
+<!-- n00000065 -->
+<g id="node26" class="node">
+<title>n00000065</title>
+<polygon fill="yellow" stroke="black" points="1694.86,-272.38 1482.86,-272.38 1482.86,-234.38 1694.86,-234.38 1694.86,-272.38"/>
+<text text-anchor="middle" x="1588.86" y="-257.18" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 25</text>
+<text text-anchor="middle" x="1588.86" y="-242.18" font-family="Times,serif" font-size="14.00">/dev/video25</text>
+</g>
+<!-- n00000069 -->
+<g id="node27" class="node">
+<title>n00000069</title>
+<polygon fill="yellow" stroke="black" points="1413.14,-189.96 1201.14,-189.96 1201.14,-151.96 1413.14,-151.96 1413.14,-189.96"/>
+<text text-anchor="middle" x="1307.14" y="-174.76" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 26</text>
+<text text-anchor="middle" x="1307.14" y="-159.76" font-family="Times,serif" font-size="14.00">/dev/video26</text>
+</g>
+<!-- n0000006d -->
+<g id="node28" class="node">
+<title>n0000006d</title>
+<polygon fill="yellow" stroke="black" points="1402.62,-339.4 1190.62,-339.4 1190.62,-301.4 1402.62,-301.4 1402.62,-339.4"/>
+<text text-anchor="middle" x="1296.62" y="-324.2" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 27</text>
+<text text-anchor="middle" x="1296.62" y="-309.2" font-family="Times,serif" font-size="14.00">/dev/video27</text>
+</g>
+<!-- n00000071 -->
+<g id="node29" class="node">
+<title>n00000071</title>
+<polygon fill="yellow" stroke="black" points="1590.74,-484.66 1378.74,-484.66 1378.74,-446.66 1590.74,-446.66 1590.74,-484.66"/>
+<text text-anchor="middle" x="1484.74" y="-469.46" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 28</text>
+<text text-anchor="middle" x="1484.74" y="-454.46" font-family="Times,serif" font-size="14.00">/dev/video28</text>
+</g>
+<!-- n00000075 -->
+<g id="node30" class="node">
+<title>n00000075</title>
+<polygon fill="yellow" stroke="black" points="1212.42,-472.56 1000.42,-472.56 1000.42,-434.56 1212.42,-434.56 1212.42,-472.56"/>
+<text text-anchor="middle" x="1106.42" y="-457.36" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 29</text>
+<text text-anchor="middle" x="1106.42" y="-442.36" font-family="Times,serif" font-size="14.00">/dev/video29</text>
+</g>
+<!-- n00000079 -->
+<g id="node31" class="node">
+<title>n00000079</title>
+<polygon fill="yellow" stroke="black" points="1229.89,-38.32 1017.89,-38.32 1017.89,-0.32 1229.89,-0.32 1229.89,-38.32"/>
+<text text-anchor="middle" x="1123.89" y="-23.12" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 30</text>
+<text text-anchor="middle" x="1123.89" y="-8.12" font-family="Times,serif" font-size="14.00">/dev/video30</text>
+</g>
+<!-- n0000007d -->
+<g id="node32" class="node">
+<title>n0000007d</title>
+<polygon fill="yellow" stroke="black" points="1602.62,-51.39 1390.62,-51.39 1390.62,-13.39 1602.62,-13.39 1602.62,-51.39"/>
+<text text-anchor="middle" x="1496.62" y="-36.19" font-family="Times,serif" font-size="14.00">Intel IPU6 ISYS Capture 31</text>
+<text text-anchor="middle" x="1496.62" y="-21.19" font-family="Times,serif" font-size="14.00">/dev/video31</text>
+</g>
+<!-- n00000081 -->
+<g id="node33" class="node">
+<title>n00000081</title>
+<path fill="green" stroke="black" d="M924.28,-700.28C924.28,-700.28 1108.28,-700.28 1108.28,-700.28 1114.28,-700.28 1120.28,-706.28 1120.28,-712.28 1120.28,-712.28 1120.28,-772.28 1120.28,-772.28 1120.28,-778.28 1114.28,-784.28 1108.28,-784.28 1108.28,-784.28 924.28,-784.28 924.28,-784.28 918.28,-784.28 912.28,-778.28 912.28,-772.28 912.28,-772.28 912.28,-712.28 912.28,-712.28 912.28,-706.28 918.28,-700.28 924.28,-700.28"/>
+<text text-anchor="middle" x="1016.28" y="-769.08" font-family="Times,serif" font-size="14.00">0</text>
+<polyline fill="none" stroke="black" points="912.28,-761.28 1120.28,-761.28 "/>
+<text text-anchor="middle" x="1016.28" y="-746.08" font-family="Times,serif" font-size="14.00">Intel IPU6 CSI2 0</text>
+<text text-anchor="middle" x="1016.28" y="-731.08" font-family="Times,serif" font-size="14.00">/dev/v4l-subdev0</text>
+<polyline fill="none" stroke="black" points="912.28,-723.28 1120.28,-723.28 "/>
+<text text-anchor="middle" x="925.28" y="-708.08" font-family="Times,serif" font-size="14.00">1</text>
+<polyline fill="none" stroke="black" points="938.28,-700.28 938.28,-723.28 "/>
+<text text-anchor="middle" x="951.28" y="-708.08" font-family="Times,serif" font-size="14.00">2</text>
+<polyline fill="none" stroke="black" points="964.28,-700.28 964.28,-723.28 "/>
+<text text-anchor="middle" x="977.28" y="-708.08" font-family="Times,serif" font-size="14.00">3</text>
+<polyline fill="none" stroke="black" points="990.28,-700.28 990.28,-723.28 "/>
+<text text-anchor="middle" x="1003.28" y="-708.08" font-family="Times,serif" font-size="14.00">4</text>
+<polyline fill="none" stroke="black" points="1016.28,-700.28 1016.28,-723.28 "/>
+<text text-anchor="middle" x="1029.28" y="-708.08" font-family="Times,serif" font-size="14.00">5</text>
+<polyline fill="none" stroke="black" points="1042.28,-700.28 1042.28,-723.28 "/>
+<text text-anchor="middle" x="1055.28" y="-708.08" font-family="Times,serif" font-size="14.00">6</text>
+<polyline fill="none" stroke="black" points="1068.28,-700.28 1068.28,-723.28 "/>
+<text text-anchor="middle" x="1081.28" y="-708.08" font-family="Times,serif" font-size="14.00">7</text>
+<polyline fill="none" stroke="black" points="1094.28,-700.28 1094.28,-723.28 "/>
+<text text-anchor="middle" x="1107.28" y="-708.08" font-family="Times,serif" font-size="14.00">8</text>
+</g>
+<!-- n00000081->n00000001 -->
+<g id="edge1" class="edge">
+<title>n00000081:port1->n00000001</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M912.28,-711.28C912.28,-711.28 880.33,-714.78 843.28,-718.84"/>
+<polygon fill="black" stroke="black" points="842.81,-715.37 833.25,-719.94 843.57,-722.33 842.81,-715.37"/>
+</g>
+<!-- n00000081->n00000005 -->
+<g id="edge2" class="edge">
+<title>n00000081:port2->n00000005</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M951.38,-700.28C951.38,-700.28 1086.18,-688.61 1123.48,-697.08 1155.93,-704.45 1158.99,-719.67 1190.39,-730.68 1190.49,-730.71 1190.59,-730.75 1190.69,-730.78"/>
+<polygon fill="black" stroke="black" points="1189.45,-734.06 1200.05,-733.86 1191.64,-727.41 1189.45,-734.06"/>
+</g>
+<!-- n00000081->n00000009 -->
+<g id="edge3" class="edge">
+<title>n00000081:port3->n00000009</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M977.28,-700.28C977.28,-700.28 979.31,-698.81 982.45,-696.54"/>
+<polygon fill="black" stroke="black" points="984.7,-699.23 990.74,-690.53 980.59,-693.56 984.7,-699.23"/>
+</g>
+<!-- n00000081->n0000000d -->
+<g id="edge4" class="edge">
+<title>n00000081:port4->n0000000d</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M1003.38,-700.26C1003.38,-700.26 916.62,-689.8 909.08,-697.08 880.2,-725.01 885.68,-754.82 909.08,-787.48 910.88,-789.99 918.96,-793.59 929.7,-797.47"/>
+<polygon fill="black" stroke="black" points="928.69,-800.82 939.28,-800.79 930.98,-794.21 928.69,-800.82"/>
+</g>
+<!-- n00000081->n00000011 -->
+<g id="edge5" class="edge">
+<title>n00000081:port5->n00000011</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M1029.19,-700.26C1029.19,-700.26 1115.28,-690.56 1123.48,-697.08 1198.37,-756.64 1190.55,-886.51 1182.64,-944.71"/>
+<polygon fill="black" stroke="black" points="1179.16,-944.31 1181.18,-954.71 1186.09,-945.32 1179.16,-944.31"/>
+</g>
+<!-- n00000081->n00000015 -->
+<g id="edge6" class="edge">
+<title>n00000081:port6->n00000015</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M1055.18,-700.28C1055.18,-700.28 915.57,-692.2 909.08,-697.08 834.02,-753.51 831.79,-879.34 835.06,-936.56"/>
+<polygon fill="black" stroke="black" points="831.58,-936.99 835.74,-946.73 838.56,-936.52 831.58,-936.99"/>
+</g>
+<!-- n00000081->n00000019 -->
+<g id="edge7" class="edge">
+<title>n00000081:port7->n00000019</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M1081.28,-700.28C1081.28,-700.28 916.04,-696.54 912.32,-693.67 864.52,-656.73 856.3,-580.22 855.62,-538.2"/>
+<polygon fill="black" stroke="black" points="859.11,-538.05 855.59,-528.06 852.11,-538.07 859.11,-538.05"/>
+</g>
+<!-- n00000081->n0000001d -->
+<g id="edge8" class="edge">
+<title>n00000081:port8->n0000001d</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M1107.28,-700.28C1107.28,-700.28 1119.29,-696.23 1121.72,-693.67 1159.76,-653.62 1177.38,-589.6 1184.78,-552.46"/>
+<polygon fill="black" stroke="black" points="1188.29,-552.76 1186.69,-542.29 1181.41,-551.47 1188.29,-552.76"/>
+</g>
+<!-- n0000008b -->
+<g id="node34" class="node">
+<title>n0000008b</title>
+<path fill="green" stroke="black" d="M293.1,-532.08C293.1,-532.08 477.1,-532.08 477.1,-532.08 483.1,-532.08 489.1,-538.08 489.1,-544.08 489.1,-544.08 489.1,-604.08 489.1,-604.08 489.1,-610.08 483.1,-616.08 477.1,-616.08 477.1,-616.08 293.1,-616.08 293.1,-616.08 287.1,-616.08 281.1,-610.08 281.1,-604.08 281.1,-604.08 281.1,-544.08 281.1,-544.08 281.1,-538.08 287.1,-532.08 293.1,-532.08"/>
+<text text-anchor="middle" x="385.1" y="-600.88" font-family="Times,serif" font-size="14.00">0</text>
+<polyline fill="none" stroke="black" points="281.1,-593.08 489.1,-593.08 "/>
+<text text-anchor="middle" x="385.1" y="-577.88" font-family="Times,serif" font-size="14.00">Intel IPU6 CSI2 1</text>
+<text text-anchor="middle" x="385.1" y="-562.88" font-family="Times,serif" font-size="14.00">/dev/v4l-subdev1</text>
+<polyline fill="none" stroke="black" points="281.1,-555.08 489.1,-555.08 "/>
+<text text-anchor="middle" x="294.1" y="-539.88" font-family="Times,serif" font-size="14.00">1</text>
+<polyline fill="none" stroke="black" points="307.1,-532.08 307.1,-555.08 "/>
+<text text-anchor="middle" x="320.1" y="-539.88" font-family="Times,serif" font-size="14.00">2</text>
+<polyline fill="none" stroke="black" points="333.1,-532.08 333.1,-555.08 "/>
+<text text-anchor="middle" x="346.1" y="-539.88" font-family="Times,serif" font-size="14.00">3</text>
+<polyline fill="none" stroke="black" points="359.1,-532.08 359.1,-555.08 "/>
+<text text-anchor="middle" x="372.1" y="-539.88" font-family="Times,serif" font-size="14.00">4</text>
+<polyline fill="none" stroke="black" points="385.1,-532.08 385.1,-555.08 "/>
+<text text-anchor="middle" x="398.1" y="-539.88" font-family="Times,serif" font-size="14.00">5</text>
+<polyline fill="none" stroke="black" points="411.1,-532.08 411.1,-555.08 "/>
+<text text-anchor="middle" x="424.1" y="-539.88" font-family="Times,serif" font-size="14.00">6</text>
+<polyline fill="none" stroke="black" points="437.1,-532.08 437.1,-555.08 "/>
+<text text-anchor="middle" x="450.1" y="-539.88" font-family="Times,serif" font-size="14.00">7</text>
+<polyline fill="none" stroke="black" points="463.1,-532.08 463.1,-555.08 "/>
+<text text-anchor="middle" x="476.1" y="-539.88" font-family="Times,serif" font-size="14.00">8</text>
+</g>
+<!-- n0000008b->n00000021 -->
+<g id="edge9" class="edge">
+<title>n0000008b:port1->n00000021</title>
+<path fill="none" stroke="black" d="M281.1,-543.08C281.1,-543.08 240.1,-560.51 205.94,-570.26 205.35,-570.43 204.77,-570.59 204.18,-570.76"/>
+<polygon fill="black" stroke="black" points="203.2,-567.39 194.47,-573.39 205.03,-574.15 203.2,-567.39"/>
+</g>
+<!-- n0000008b->n00000025 -->
+<g id="edge10" class="edge">
+<title>n0000008b:port2->n00000025</title>
+<path fill="none" stroke="black" d="M320.2,-532.07C320.2,-532.07 456.9,-514.37 492.3,-528.88 528.42,-543.68 522.86,-571.78 556.11,-594.53"/>
+<polygon fill="black" stroke="black" points="554.54,-597.67 564.9,-599.88 558.18,-591.69 554.54,-597.67"/>
+</g>
+<!-- n0000008b->n00000029 -->
+<g id="edge11" class="edge">
+<title>n0000008b:port3->n00000029</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M346.1,-532.08C346.1,-532.08 333.93,-527.96 318.37,-522.71"/>
+<polygon fill="black" stroke="black" points="319.48,-519.39 308.88,-519.5 317.24,-526.02 319.48,-519.39"/>
+</g>
+<!-- n0000008b->n0000002d -->
+<g id="edge12" class="edge">
+<title>n0000008b:port4->n0000002d</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M372.19,-532.05C372.19,-532.05 292.97,-514.3 277.9,-528.88 249.01,-556.8 253.16,-587.62 277.9,-619.28 278.34,-619.85 280.33,-620.69 283.45,-621.71"/>
+<polygon fill="black" stroke="black" points="282.71,-625.14 293.29,-624.58 284.67,-618.42 282.71,-625.14"/>
+</g>
+<!-- n0000008b->n00000031 -->
+<g id="edge13" class="edge">
+<title>n0000008b:port5->n00000031</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M398,-532.05C398,-532.05 476.28,-515.34 492.3,-528.88 568.49,-593.29 550.55,-729.67 538.14,-789.41"/>
+<polygon fill="black" stroke="black" points="534.69,-788.79 535.99,-799.31 541.53,-790.28 534.69,-788.79"/>
+</g>
+<!-- n0000008b->n00000035 -->
+<g id="edge14" class="edge">
+<title>n0000008b:port6->n00000035</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M424,-532.07C424,-532.07 290.37,-518.48 277.9,-528.88 202.27,-591.86 215.34,-725.69 225.66,-785.15"/>
+<polygon fill="black" stroke="black" points="222.29,-786.14 227.54,-795.35 229.17,-784.88 222.29,-786.14"/>
+</g>
+<!-- n0000008b->n00000039 -->
+<g id="edge15" class="edge">
+<title>n0000008b:port7->n00000039</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M450.1,-532.08C450.1,-532.08 395.22,-528.13 383.45,-518.65 375.46,-512.21 322.64,-385.46 298.76,-327.47"/>
+<polygon fill="black" stroke="black" points="301.96,-326.05 294.92,-318.14 295.49,-328.72 301.96,-326.05"/>
+</g>
+<!-- n0000008b->n0000003d -->
+<g id="edge16" class="edge">
+<title>n0000008b:port8->n0000003d</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M476.1,-532.08C476.1,-532.08 522.37,-522.39 526.85,-518.65 563.15,-488.33 581.38,-434.52 589.6,-401.2"/>
+<polygon fill="black" stroke="black" points="593.08,-401.69 591.93,-391.16 586.26,-400.11 593.08,-401.69"/>
+</g>
+<!-- n00000095 -->
+<g id="node35" class="node">
+<title>n00000095</title>
+<path fill="green" stroke="black" d="M301.38,-1180.11C301.38,-1180.11 485.38,-1180.11 485.38,-1180.11 491.38,-1180.11 497.38,-1186.11 497.38,-1192.11 497.38,-1192.11 497.38,-1252.11 497.38,-1252.11 497.38,-1258.11 491.38,-1264.11 485.38,-1264.11 485.38,-1264.11 301.38,-1264.11 301.38,-1264.11 295.38,-1264.11 289.38,-1258.11 289.38,-1252.11 289.38,-1252.11 289.38,-1192.11 289.38,-1192.11 289.38,-1186.11 295.38,-1180.11 301.38,-1180.11"/>
+<text text-anchor="middle" x="393.38" y="-1248.91" font-family="Times,serif" font-size="14.00">0</text>
+<polyline fill="none" stroke="black" points="289.38,-1241.11 497.38,-1241.11 "/>
+<text text-anchor="middle" x="393.38" y="-1225.91" font-family="Times,serif" font-size="14.00">Intel IPU6 CSI2 2</text>
+<text text-anchor="middle" x="393.38" y="-1210.91" font-family="Times,serif" font-size="14.00">/dev/v4l-subdev2</text>
+<polyline fill="none" stroke="black" points="289.38,-1203.11 497.38,-1203.11 "/>
+<text text-anchor="middle" x="302.38" y="-1187.91" font-family="Times,serif" font-size="14.00">1</text>
+<polyline fill="none" stroke="black" points="315.38,-1180.11 315.38,-1203.11 "/>
+<text text-anchor="middle" x="328.38" y="-1187.91" font-family="Times,serif" font-size="14.00">2</text>
+<polyline fill="none" stroke="black" points="341.38,-1180.11 341.38,-1203.11 "/>
+<text text-anchor="middle" x="354.38" y="-1187.91" font-family="Times,serif" font-size="14.00">3</text>
+<polyline fill="none" stroke="black" points="367.38,-1180.11 367.38,-1203.11 "/>
+<text text-anchor="middle" x="380.38" y="-1187.91" font-family="Times,serif" font-size="14.00">4</text>
+<polyline fill="none" stroke="black" points="393.38,-1180.11 393.38,-1203.11 "/>
+<text text-anchor="middle" x="406.38" y="-1187.91" font-family="Times,serif" font-size="14.00">5</text>
+<polyline fill="none" stroke="black" points="419.38,-1180.11 419.38,-1203.11 "/>
+<text text-anchor="middle" x="432.38" y="-1187.91" font-family="Times,serif" font-size="14.00">6</text>
+<polyline fill="none" stroke="black" points="445.38,-1180.11 445.38,-1203.11 "/>
+<text text-anchor="middle" x="458.38" y="-1187.91" font-family="Times,serif" font-size="14.00">7</text>
+<polyline fill="none" stroke="black" points="471.38,-1180.11 471.38,-1203.11 "/>
+<text text-anchor="middle" x="484.38" y="-1187.91" font-family="Times,serif" font-size="14.00">8</text>
+</g>
+<!-- n00000095->n00000041 -->
+<g id="edge17" class="edge">
+<title>n00000095:port1->n00000041</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M289.38,-1191.11C289.38,-1191.11 258.94,-1194.22 222.89,-1197.91"/>
+<polygon fill="black" stroke="black" points="222.19,-1194.46 212.6,-1198.96 222.9,-1201.42 222.19,-1194.46"/>
+</g>
+<!-- n00000095->n00000045 -->
+<g id="edge18" class="edge">
+<title>n00000095:port2->n00000045</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M328.48,-1180.11C328.48,-1180.11 463.26,-1168.53 500.58,-1176.91 534.02,-1184.43 537.24,-1200.06 569.66,-1211.18 569.76,-1211.22 569.86,-1211.25 569.96,-1211.29"/>
+<polygon fill="black" stroke="black" points="568.86,-1214.61 579.45,-1214.34 571,-1207.95 568.86,-1214.61"/>
+</g>
+<!-- n00000095->n00000049 -->
+<g id="edge19" class="edge">
+<title>n00000095:port3->n00000049</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M354.38,-1180.11C354.38,-1180.11 356.8,-1178.46 360.49,-1175.94"/>
+<polygon fill="black" stroke="black" points="362.56,-1178.77 368.86,-1170.24 358.62,-1172.98 362.56,-1178.77"/>
+</g>
+<!-- n00000095->n0000004d -->
+<g id="edge20" class="edge">
+<title>n00000095:port4->n0000004d</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M380.47,-1180.09C380.47,-1180.09 293.71,-1169.63 286.18,-1176.91 257.29,-1204.84 262.63,-1234.76 286.18,-1267.31 288.16,-1270.05 297.33,-1273.96 309.38,-1278.13"/>
+<polygon fill="black" stroke="black" points="308.49,-1281.53 319.09,-1281.36 310.7,-1274.88 308.49,-1281.53"/>
+</g>
+<!-- n00000095->n00000051 -->
+<g id="edge21" class="edge">
+<title>n00000095:port5->n00000051</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M406.28,-1180.09C406.28,-1180.09 492.13,-1170.7 500.58,-1176.91 576.41,-1232.66 579.83,-1358.79 577.09,-1416.2"/>
+<polygon fill="black" stroke="black" points="573.59,-1416.23 576.51,-1426.41 580.58,-1416.63 573.59,-1416.23"/>
+</g>
+<!-- n00000095->n00000055 -->
+<g id="edge22" class="edge">
+<title>n00000095:port6->n00000055</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M432.28,-1180.11C432.28,-1180.11 292.85,-1172.29 286.18,-1176.91 211.26,-1228.86 198.3,-1348.49 196.45,-1404.12"/>
+<polygon fill="black" stroke="black" points="192.94,-1404.28 196.21,-1414.36 199.94,-1404.44 192.94,-1404.28"/>
+</g>
+<!-- n00000095->n00000059 -->
+<g id="edge23" class="edge">
+<title>n00000095:port7->n00000059</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M458.38,-1180.11C458.38,-1180.11 291.84,-1175.85 287.94,-1173.16 239.87,-1139.96 222.85,-1068.83 216.94,-1028.6"/>
+<polygon fill="black" stroke="black" points="220.39,-1028.06 215.6,-1018.61 213.46,-1028.98 220.39,-1028.06"/>
+</g>
+<!-- n00000095->n0000005d -->
+<g id="edge24" class="edge">
+<title>n00000095:port8->n0000005d</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M484.38,-1180.11C484.38,-1180.11 502.45,-1176.49 506.34,-1173.16 547.25,-1138.2 569.47,-1077.38 579.62,-1041.41"/>
+<polygon fill="black" stroke="black" points="583.06,-1042.09 582.28,-1031.53 576.3,-1040.27 583.06,-1042.09"/>
+</g>
+<!-- n0000009f -->
+<g id="node36" class="node">
+<title>n0000009f</title>
+<path fill="green" stroke="black" d="M1211.38,-200.11C1211.38,-200.11 1395.38,-200.11 1395.38,-200.11 1401.38,-200.11 1407.38,-206.11 1407.38,-212.11 1407.38,-212.11 1407.38,-272.11 1407.38,-272.11 1407.38,-278.11 1401.38,-284.11 1395.38,-284.11 1395.38,-284.11 1211.38,-284.11 1211.38,-284.11 1205.38,-284.11 1199.38,-278.11 1199.38,-272.11 1199.38,-272.11 1199.38,-212.11 1199.38,-212.11 1199.38,-206.11 1205.38,-200.11 1211.38,-200.11"/>
+<text text-anchor="middle" x="1303.38" y="-268.91" font-family="Times,serif" font-size="14.00">0</text>
+<polyline fill="none" stroke="black" points="1199.38,-261.11 1407.38,-261.11 "/>
+<text text-anchor="middle" x="1303.38" y="-245.91" font-family="Times,serif" font-size="14.00">Intel IPU6 CSI2 3</text>
+<text text-anchor="middle" x="1303.38" y="-230.91" font-family="Times,serif" font-size="14.00">/dev/v4l-subdev3</text>
+<polyline fill="none" stroke="black" points="1199.38,-223.11 1407.38,-223.11 "/>
+<text text-anchor="middle" x="1212.38" y="-207.91" font-family="Times,serif" font-size="14.00">1</text>
+<polyline fill="none" stroke="black" points="1225.38,-200.11 1225.38,-223.11 "/>
+<text text-anchor="middle" x="1238.38" y="-207.91" font-family="Times,serif" font-size="14.00">2</text>
+<polyline fill="none" stroke="black" points="1251.38,-200.11 1251.38,-223.11 "/>
+<text text-anchor="middle" x="1264.38" y="-207.91" font-family="Times,serif" font-size="14.00">3</text>
+<polyline fill="none" stroke="black" points="1277.38,-200.11 1277.38,-223.11 "/>
+<text text-anchor="middle" x="1290.38" y="-207.91" font-family="Times,serif" font-size="14.00">4</text>
+<polyline fill="none" stroke="black" points="1303.38,-200.11 1303.38,-223.11 "/>
+<text text-anchor="middle" x="1316.38" y="-207.91" font-family="Times,serif" font-size="14.00">5</text>
+<polyline fill="none" stroke="black" points="1329.38,-200.11 1329.38,-223.11 "/>
+<text text-anchor="middle" x="1342.38" y="-207.91" font-family="Times,serif" font-size="14.00">6</text>
+<polyline fill="none" stroke="black" points="1355.38,-200.11 1355.38,-223.11 "/>
+<text text-anchor="middle" x="1368.38" y="-207.91" font-family="Times,serif" font-size="14.00">7</text>
+<polyline fill="none" stroke="black" points="1381.38,-200.11 1381.38,-223.11 "/>
+<text text-anchor="middle" x="1394.38" y="-207.91" font-family="Times,serif" font-size="14.00">8</text>
+</g>
+<!-- n0000009f->n00000061 -->
+<g id="edge25" class="edge">
+<title>n0000009f:port1->n00000061</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M1199.38,-211.11C1199.38,-211.11 1168.94,-214.22 1132.89,-217.91"/>
+<polygon fill="black" stroke="black" points="1132.19,-214.46 1122.6,-218.96 1132.9,-221.42 1132.19,-214.46"/>
+</g>
+<!-- n0000009f->n00000065 -->
+<g id="edge26" class="edge">
+<title>n0000009f:port2->n00000065</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M1238.48,-200.11C1238.48,-200.11 1373.26,-188.53 1410.58,-196.91 1444.02,-204.43 1447.24,-220.06 1479.66,-231.18 1479.76,-231.22 1479.86,-231.25 1479.96,-231.29"/>
+<polygon fill="black" stroke="black" points="1478.86,-234.61 1489.45,-234.34 1481,-227.95 1478.86,-234.61"/>
+</g>
+<!-- n0000009f->n00000069 -->
+<g id="edge27" class="edge">
+<title>n0000009f:port3->n00000069</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M1264.38,-200.11C1264.38,-200.11 1266.8,-198.46 1270.49,-195.94"/>
+<polygon fill="black" stroke="black" points="1272.56,-198.77 1278.86,-190.24 1268.62,-192.98 1272.56,-198.77"/>
+</g>
+<!-- n0000009f->n0000006d -->
+<g id="edge28" class="edge">
+<title>n0000009f:port4->n0000006d</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M1290.47,-200.09C1290.47,-200.09 1203.71,-189.63 1196.18,-196.91 1167.29,-224.84 1172.63,-254.76 1196.18,-287.31 1198.16,-290.05 1207.33,-293.96 1219.38,-298.13"/>
+<polygon fill="black" stroke="black" points="1218.49,-301.53 1229.09,-301.36 1220.7,-294.88 1218.49,-301.53"/>
+</g>
+<!-- n0000009f->n00000071 -->
+<g id="edge29" class="edge">
+<title>n0000009f:port5->n00000071</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M1316.28,-200.09C1316.28,-200.09 1402.13,-190.7 1410.58,-196.91 1486.41,-252.66 1489.83,-378.79 1487.09,-436.2"/>
+<polygon fill="black" stroke="black" points="1483.59,-436.23 1486.51,-446.41 1490.58,-436.63 1483.59,-436.23"/>
+</g>
+<!-- n0000009f->n00000075 -->
+<g id="edge30" class="edge">
+<title>n0000009f:port6->n00000075</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M1342.28,-200.11C1342.28,-200.11 1202.85,-192.29 1196.18,-196.91 1121.26,-248.86 1108.3,-368.49 1106.45,-424.12"/>
+<polygon fill="black" stroke="black" points="1102.94,-424.28 1106.21,-434.36 1109.94,-424.44 1102.94,-424.28"/>
+</g>
+<!-- n0000009f->n00000079 -->
+<g id="edge31" class="edge">
+<title>n0000009f:port7->n00000079</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M1368.38,-200.11C1368.38,-200.11 1201.84,-195.85 1197.94,-193.16 1149.87,-159.96 1132.85,-88.83 1126.94,-48.6"/>
+<polygon fill="black" stroke="black" points="1130.39,-48.06 1125.6,-38.61 1123.46,-48.98 1130.39,-48.06"/>
+</g>
+<!-- n0000009f->n0000007d -->
+<g id="edge32" class="edge">
+<title>n0000009f:port8->n0000007d</title>
+<path fill="none" stroke="black" stroke-dasharray="5,2" d="M1394.38,-200.11C1394.38,-200.11 1412.45,-196.49 1416.34,-193.16 1457.25,-158.2 1479.47,-97.38 1489.62,-61.41"/>
+<polygon fill="black" stroke="black" points="1493.06,-62.09 1492.28,-51.53 1486.3,-60.27 1493.06,-62.09"/>
+</g>
+<!-- n000000e9 -->
+<g id="node37" class="node">
+<title>n000000e9</title>
+<path fill="green" stroke="black" d="M398.65,-431.45C398.65,-431.45 511.65,-431.45 511.65,-431.45 517.65,-431.45 523.65,-437.45 523.65,-443.45 523.65,-443.45 523.65,-503.45 523.65,-503.45 523.65,-509.45 517.65,-515.45 511.65,-515.45 511.65,-515.45 398.65,-515.45 398.65,-515.45 392.65,-515.45 386.65,-509.45 386.65,-503.45 386.65,-503.45 386.65,-443.45 386.65,-443.45 386.65,-437.45 392.65,-431.45 398.65,-431.45"/>
+<text text-anchor="middle" x="420.65" y="-500.25" font-family="Times,serif" font-size="14.00">1</text>
+<polyline fill="none" stroke="black" points="454.65,-492.45 454.65,-515.45 "/>
+<text text-anchor="middle" x="489.15" y="-500.25" font-family="Times,serif" font-size="14.00">2</text>
+<polyline fill="none" stroke="black" points="386.65,-492.45 523.65,-492.45 "/>
+<text text-anchor="middle" x="455.15" y="-477.25" font-family="Times,serif" font-size="14.00">ov2740 4-0036</text>
+<text text-anchor="middle" x="455.15" y="-462.25" font-family="Times,serif" font-size="14.00">/dev/v4l-subdev4</text>
+<polyline fill="none" stroke="black" points="386.65,-454.45 523.65,-454.45 "/>
+<text text-anchor="middle" x="455.15" y="-439.25" font-family="Times,serif" font-size="14.00">0</text>
+</g>
+<!-- n000000e9->n0000008b -->
+<g id="edge33" class="edge">
+<title>n000000e9:port0->n0000008b:port0</title>
+<path fill="none" stroke="black" stroke-width="2" d="M386.14,-442.55C386.14,-442.55 361.11,-493.23 383.45,-518.65 391.47,-527.78 484.31,-519.72 492.3,-528.88 508.64,-547.6 499.26,-579.87 493.12,-595.68"/>
+<polygon fill="black" stroke="black" stroke-width="2" points="489.86,-594.41 489.11,-604.98 496.29,-597.19 489.86,-594.41"/>
+</g>
+</g>
+</svg>
diff --git a/Documentation/admin-guide/media/mgb4.rst b/Documentation/admin-guide/media/mgb4.rst
index 2977f74..e434d4a 100644
--- a/Documentation/admin-guide/media/mgb4.rst
+++ b/Documentation/admin-guide/media/mgb4.rst
@@ -1,8 +1,10 @@
.. SPDX-License-Identifier: GPL-2.0
-====================
-mgb4 sysfs interface
-====================
+The mgb4 driver
+===============
+
+sysfs interface
+---------------
The mgb4 driver provides a sysfs interface, that is used to configure video
stream related parameters (some of them must be set properly before the v4l2
@@ -12,9 +14,8 @@
``/sys/class/video4linux/videoX/device`` and module specific found under
``/sys/class/video4linux/videoX``.
-
Global (PCI card) parameters
-============================
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
**module_type** (R):
Module type.
@@ -42,9 +43,8 @@
where each component is a 8b number.
-
Common FPDL3/GMSL input parameters
-==================================
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
**input_id** (R):
Input number ID, zero based.
@@ -190,9 +190,8 @@
*Note: This parameter can not be changed while the input v4l2 device is
open.*
-
Common FPDL3/GMSL output parameters
-===================================
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
**output_id** (R):
Output number ID, zero based.
@@ -282,9 +281,8 @@
Number of video lines between the end of the last valid pixel line (marked
by DE=1) and assertion of the VSYNC signal. The default value is 2.
-
FPDL3 specific input parameters
-===============================
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
**fpdl3_input_width** (RW):
Number of deserializer input lines.
@@ -294,7 +292,7 @@
| 2 - dual
FPDL3 specific output parameters
-================================
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
**fpdl3_output_width** (RW):
Number of serializer output lines.
@@ -304,7 +302,7 @@
| 2 - dual
GMSL specific input parameters
-==============================
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
**gmsl_mode** (RW):
GMSL speed mode.
@@ -328,10 +326,8 @@
| 0 - disabled
| 1 - enabled (default)
-
-====================
-mgb4 mtd partitions
-====================
+MTD partitions
+--------------
The mgb4 driver creates a MTD device with two partitions:
- mgb4-fw.X - FPGA firmware.
@@ -344,9 +340,8 @@
partition represents the whole, unpartitioned, card's FLASH memory and one should
not fiddle with it...
-====================
-mgb4 iio (triggers)
-====================
+IIO (triggers)
+--------------
The mgb4 driver creates an Industrial I/O (IIO) device that provides trigger and
signal level status capability. The following scan elements are available:
diff --git a/Documentation/admin-guide/media/raspberrypi-pisp-be.dot b/Documentation/admin-guide/media/raspberrypi-pisp-be.dot
new file mode 100644
index 0000000..55671dc
--- /dev/null
+++ b/Documentation/admin-guide/media/raspberrypi-pisp-be.dot
@@ -0,0 +1,20 @@
+digraph board {
+ rankdir=TB
+ n00000001 [label="{{<port0> 0 | <port1> 1 | <port2> 2 | <port7> 7} | pispbe\n | {<port3> 3 | <port4> 4 | <port5> 5 | <port6> 6}}", shape=Mrecord, style=filled, fillcolor=green]
+ n00000001:port3 -> n0000001c [style=bold]
+ n00000001:port4 -> n00000022 [style=bold]
+ n00000001:port5 -> n00000028 [style=bold]
+ n00000001:port6 -> n0000002e [style=bold]
+ n0000000a [label="pispbe-input\n/dev/video0", shape=box, style=filled, fillcolor=yellow]
+ n0000000a -> n00000001:port0 [style=bold]
+ n00000010 [label="pispbe-tdn_input\n/dev/video1", shape=box, style=filled, fillcolor=yellow]
+ n00000010 -> n00000001:port1 [style=bold]
+ n00000016 [label="pispbe-stitch_input\n/dev/video2", shape=box, style=filled, fillcolor=yellow]
+ n00000016 -> n00000001:port2 [style=bold]
+ n0000001c [label="pispbe-output0\n/dev/video3", shape=box, style=filled, fillcolor=yellow]
+ n00000022 [label="pispbe-output1\n/dev/video4", shape=box, style=filled, fillcolor=yellow]
+ n00000028 [label="pispbe-tdn_output\n/dev/video5", shape=box, style=filled, fillcolor=yellow]
+ n0000002e [label="pispbe-stitch_output\n/dev/video6", shape=box, style=filled, fillcolor=yellow]
+ n00000034 [label="pispbe-config\n/dev/video7", shape=box, style=filled, fillcolor=yellow]
+ n00000034 -> n00000001:port7 [style=bold]
+}
diff --git a/Documentation/admin-guide/media/raspberrypi-pisp-be.rst b/Documentation/admin-guide/media/raspberrypi-pisp-be.rst
new file mode 100644
index 0000000..0fcf46f
--- /dev/null
+++ b/Documentation/admin-guide/media/raspberrypi-pisp-be.rst
@@ -0,0 +1,109 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=========================================================
+Raspberry Pi PiSP Back End Memory-to-Memory ISP (pisp-be)
+=========================================================
+
+The PiSP Back End
+=================
+
+The PiSP Back End is a memory-to-memory Image Signal Processor (ISP) which reads
+image data from DRAM memory and performs image processing as specified by the
+application through the parameters in a configuration buffer, before writing
+pixel data back to memory through two distinct output channels.
+
+The ISP registers and programming model are documented in the `Raspberry Pi
+Image Signal Processor (PiSP) Specification document`_
+
+The PiSP Back End ISP processes images in tiles. The handling of image
+tessellation and the computation of low-level configuration parameters is
+realized by a free software library called `libpisp
+<https://github.com/raspberrypi/libpisp>`_.
+
+The full image processing pipeline, which involves capturing RAW Bayer data from
+an image sensor through a MIPI CSI-2 compatible capture interface, storing them
+in DRAM memory and processing them in the PiSP Back End to obtain images usable
+by an application is implemented in `libcamera <https://libcamera.org>`_ as
+part of the Raspberry Pi platform support.
+
+The pisp-be driver
+==================
+
+The Raspberry Pi PiSP Back End (pisp-be) driver is located under
+drivers/media/platform/raspberrypi/pisp-be. It uses the `V4L2 API` to register
+a number of video capture and output devices, the `V4L2 subdev API` to register
+a subdevice for the ISP that connects the video devices in a single media graph
+realized using the `Media Controller (MC) API`.
+
+The media topology registered by the `pisp-be` driver is represented below:
+
+.. _pips-be-topology:
+
+.. kernel-figure:: raspberrypi-pisp-be.dot
+ :alt: Diagram of the default media pipeline topology
+ :align: center
+
+
+The media graph registers the following video device nodes:
+
+- pispbe-input: output device for images to be submitted to the ISP for
+ processing.
+- pispbe-tdn_input: output device for temporal denoise.
+- pispbe-stitch_input: output device for image stitching (HDR).
+- pispbe-output0: first capture device for processed images.
+- pispbe-output1: second capture device for processed images.
+- pispbe-tdn_output: capture device for temporal denoise.
+- pispbe-stitch_output: capture device for image stitching (HDR).
+- pispbe-config: output device for ISP configuration parameters.
+
+pispbe-input
+------------
+
+Images to be processed by the ISP are queued to the `pispbe-input` output device
+node. For a list of image formats supported as input to the ISP refer to the
+`Raspberry Pi Image Signal Processor (PiSP) Specification document`_.
+
+pispbe-tdn_input, pispbe-tdn_output
+-----------------------------------
+
+The `pispbe-tdn_input` output video device receives images to be processed by
+the temporal denoise block which are captured from the `pispbe-tdn_output`
+capture video device. Userspace is responsible for maintaining queues on both
+devices, and ensuring that buffers completed on the output are queued to the
+input.
+
+pispbe-stitch_input, pispbe-stitch_output
+-----------------------------------------
+
+To realize HDR (high dynamic range) image processing the image stitching and
+tonemapping blocks are used. The `pispbe-stitch_output` writes images to memory
+and the `pispbe-stitch_input` receives the previously written frame to process
+it along with the current input image. Userspace is responsible for maintaining
+queues on both devices, and ensuring that buffers completed on the output are
+queued to the input.
+
+pispbe-output0, pispbe-output1
+------------------------------
+
+The two capture devices write to memory the pixel data as processed by the ISP.
+
+pispbe-config
+-------------
+
+The `pispbe-config` output video devices receives a buffer of configuration
+parameters that define the desired image processing to be performed by the ISP.
+
+The format of the ISP configuration parameter is defined by
+:c:type:`pisp_be_tiles_config` C structure and the meaning of each parameter is
+described in the `Raspberry Pi Image Signal Processor (PiSP) Specification
+document`_.
+
+ISP configuration
+=================
+
+The ISP configuration is described solely by the content of the parameters
+buffer. The only parameter that userspace needs to configure using the V4L2 API
+is the image format on the output and capture video devices for validation of
+the content of the parameters buffer.
+
+.. _Raspberry Pi Image Signal Processor (PiSP) Specification document: https://datasheets.raspberrypi.com/camera/raspberry-pi-image-signal-processor-specification.pdf
diff --git a/Documentation/admin-guide/media/tuner-cardlist.rst b/Documentation/admin-guide/media/tuner-cardlist.rst
index 362617c..65ecf48 100644
--- a/Documentation/admin-guide/media/tuner-cardlist.rst
+++ b/Documentation/admin-guide/media/tuner-cardlist.rst
@@ -97,4 +97,6 @@
89 Sony BTF-PG472Z PAL/SECAM
90 Sony BTF-PK467Z NTSC-M-JP
91 Sony BTF-PB463Z NTSC-M
+92 Silicon Labs Si2157 tuner
+93 Tena TNF931D-DFDR1
============ =====================================================
diff --git a/Documentation/admin-guide/media/v4l-drivers.rst b/Documentation/admin-guide/media/v4l-drivers.rst
index f4bb260..b6af448 100644
--- a/Documentation/admin-guide/media/v4l-drivers.rst
+++ b/Documentation/admin-guide/media/v4l-drivers.rst
@@ -16,12 +16,14 @@
imx
imx7
ipu3
+ ipu6-isys
ivtv
mgb4
omap3isp
omap4_camera
philips
qcom_camss
+ raspberrypi-pisp-be
rcar-fdp1
rkisp1
saa7134
diff --git a/Documentation/admin-guide/media/vivid.rst b/Documentation/admin-guide/media/vivid.rst
index b6f658c..1306f19 100644
--- a/Documentation/admin-guide/media/vivid.rst
+++ b/Documentation/admin-guide/media/vivid.rst
@@ -302,6 +302,15 @@
- 0: forbid hints
- 1: allow hints
+- supports_requests:
+
+ specifies if the device should support the Request API. There are
+ three possible values, default is 1:
+
+ - 0: no request
+ - 1: supports requests
+ - 2: requires requests
+
Taken together, all these module options allow you to precisely customize
the driver behavior and test your application with all sorts of permutations.
It is also very suitable to emulate hardware that is not yet available, e.g.
@@ -313,10 +322,10 @@
This is probably the most frequently used feature. The video capture device
can be configured by using the module options num_inputs, input_types and
-ccs_cap_mode (see section 1 for more detailed information), but by default
-four inputs are configured: a webcam, a TV tuner, an S-Video and an HDMI
-input, one input for each input type. Those are described in more detail
-below.
+ccs_cap_mode (see "Configuring the driver" for more detailed information),
+but by default four inputs are configured: a webcam, a TV tuner, an S-Video
+and an HDMI input, one input for each input type. Those are described in more
+detail below.
Special attention has been given to the rate at which new frames become
available. The jitter will be around 1 jiffie (that depends on the HZ
@@ -434,10 +443,10 @@
------------
The video output device can be configured by using the module options
-num_outputs, output_types and ccs_out_mode (see section 1 for more detailed
-information), but by default two outputs are configured: an S-Video and an
-HDMI input, one output for each output type. Those are described in more detail
-below.
+num_outputs, output_types and ccs_out_mode (see "Configuring the driver"
+for more detailed information), but by default two outputs are configured:
+an S-Video and an HDMI input, one output for each output type. Those are
+described in more detail below.
Like with video capture the framerate is also exact in the long term.
@@ -1011,11 +1020,6 @@
affects the reported colorspace since DVI_D outputs will always use
sRGB.
-- Display Present:
-
- sets the presence of a "display" on the HDMI output. This affects
- the tx_edid_present, tx_hotplug and tx_rxsense controls.
-
FM Radio Receiver Controls
~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -1130,35 +1134,34 @@
if set, then the generated metadata stream contains Source Clock information.
-Video, VBI and RDS Looping
---------------------------
-The vivid driver supports looping of video output to video input, VBI output
-to VBI input and RDS output to RDS input. For video/VBI looping this emulates
-as if a cable was hooked up between the output and input connector. So video
-and VBI looping is only supported between S-Video and HDMI inputs and outputs.
-VBI is only valid for S-Video as it makes no sense for HDMI.
+Video, Sliced VBI and HDMI CEC Looping
+--------------------------------------
-Since radio is wireless this looping always happens if the radio receiver
-frequency is close to the radio transmitter frequency. In that case the radio
-transmitter will 'override' the emulated radio stations.
+Video Looping functionality is supported for devices created by the same
+vivid driver instance, as well as across multiple instances of the vivid driver.
+The vivid driver supports looping of video and Sliced VBI data between an S-Video output
+and an S-Video input. It also supports looping of video and HDMI CEC data between an
+HDMI output and an HDMI input.
-Looping is currently supported only between devices created by the same
-vivid driver instance.
+To enable looping, set the 'HDMI/S-Video XXX-N Is Connected To' control(s) to select
+whether an input uses the Test Pattern Generator, or is disconnected, or is connected
+to an output. An input can be connected to an output from any vivid instance.
+The inputs and outputs are numbered XXX-N where XXX is the vivid instance number
+(see module option n_devs). If there is only one vivid instance (the default), then
+XXX will be 000. And N is the Nth S-Video/HDMI input or output of that instance.
+If vivid is loaded without module options, then you can connect the S-Video 000-0 input
+to the S-Video 000-0 output, or the HDMI 000-0 input to the HDMI 000-0 output.
+This is the equivalent of connecting or disconnecting a cable between an input and an
+output in a physical device.
+If an 'HDMI/S-Video XXX-N Is Connected To' control selected an output, then the video
+output will be looped to the video input provided that:
-Video and Sliced VBI looping
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+- the currently selected input matches the input indicated by the control name.
-The way to enable video/VBI looping is currently fairly crude. A 'Loop Video'
-control is available in the "Vivid" control class of the video
-capture and VBI capture devices. When checked the video looping will be enabled.
-Once enabled any video S-Video or HDMI input will show a static test pattern
-until the video output has started. At that time the video output will be
-looped to the video input provided that:
-
-- the input type matches the output type. So the HDMI input cannot receive
- video from the S-Video output.
+- in the vivid instance of the output connector, the currently selected output matches
+ the output indicated by the control's value.
- the video resolution of the video input must match that of the video output.
So it is not possible to loop a 50 Hz (720x576) S-Video output to a 60 Hz
@@ -1185,6 +1188,8 @@
"DV Timings Signal Mode" for the HDMI input should be configured so that a
valid signal is passed to the video input.
+If any condition is not valid, then the 'Noise' test pattern is shown.
+
The framerates do not have to match, although this might change in the future.
By default you will see the OSD text superimposed on top of the looped video.
@@ -1198,17 +1203,26 @@
Radio & RDS Looping
-~~~~~~~~~~~~~~~~~~~
+-------------------
-As mentioned in section 6 the radio receiver emulates stations are regular
-frequency intervals. Depending on the frequency of the radio receiver a
-signal strength value is calculated (this is returned by VIDIOC_G_TUNER).
-However, it will also look at the frequency set by the radio transmitter and
-if that results in a higher signal strength than the settings of the radio
-transmitter will be used as if it was a valid station. This also includes
-the RDS data (if any) that the transmitter 'transmits'. This is received
-faithfully on the receiver side. Note that when the driver is loaded the
-frequencies of the radio receiver and transmitter are not identical, so
+The vivid driver supports looping of RDS output to RDS input.
+
+Since radio is wireless this looping always happens if the radio receiver
+frequency is close to the radio transmitter frequency. In that case the radio
+transmitter will 'override' the emulated radio stations.
+
+RDS looping is currently supported only between devices created by the same
+vivid driver instance.
+
+As mentioned in the "Radio Receiver" section, the radio receiver emulates
+stations at regular frequency intervals. Depending on the frequency of the
+radio receiver a signal strength value is calculated (this is returned by
+VIDIOC_G_TUNER). However, it will also look at the frequency set by the radio
+transmitter and if that results in a higher signal strength than the settings
+of the radio transmitter will be used as if it was a valid station. This also
+includes the RDS data (if any) that the transmitter 'transmits'. This is
+received faithfully on the receiver side. Note that when the driver is loaded
+the frequencies of the radio receiver and transmitter are not identical, so
initially no looping takes place.
@@ -1218,8 +1232,8 @@
This driver supports cropping, composing and scaling in any combination. Normally
which features are supported can be selected through the Vivid controls,
but it is also possible to hardcode it when the module is loaded through the
-ccs_cap_mode and ccs_out_mode module options. See section 1 on the details of
-these module options.
+ccs_cap_mode and ccs_out_mode module options. See "Configuring the driver" on
+the details of these module options.
This allows you to test your application for all these variations.
@@ -1260,7 +1274,8 @@
The driver has to be configured to support the multiplanar formats. By default
the driver instances are single-planar. This can be changed by setting the
-multiplanar module option, see section 1 for more details on that option.
+multiplanar module option, see "Configuring the driver" for more details on that
+option.
If the driver instance is using the multiplanar formats/API, then the first
single planar format (YUYV) and the multiplanar NV16M and NV61M formats the
@@ -1270,74 +1285,6 @@
Video output will also honor any data_offset that the application set.
-Capture Overlay
----------------
-
-Note: capture overlay support is implemented primarily to test the existing
-V4L2 capture overlay API. In practice few if any GPUs support such overlays
-anymore, and neither are they generally needed anymore since modern hardware
-is so much more capable. By setting flag 0x10000 in the node_types module
-option the vivid driver will create a simple framebuffer device that can be
-used for testing this API. Whether this API should be used for new drivers is
-questionable.
-
-This driver has support for a destructive capture overlay with bitmap clipping
-and list clipping (up to 16 rectangles) capabilities. Overlays are not
-supported for multiplanar formats. It also honors the struct v4l2_window field
-setting: if it is set to FIELD_TOP or FIELD_BOTTOM and the capture setting is
-FIELD_ALTERNATE, then only the top or bottom fields will be copied to the overlay.
-
-The overlay only works if you are also capturing at that same time. This is a
-vivid limitation since it copies from a buffer to the overlay instead of
-filling the overlay directly. And if you are not capturing, then no buffers
-are available to fill.
-
-In addition, the pixelformat of the capture format and that of the framebuffer
-must be the same for the overlay to work. Otherwise VIDIOC_OVERLAY will return
-an error.
-
-In order to really see what it going on you will need to create two vivid
-instances: the first with a framebuffer enabled. You configure the capture
-overlay of the second instance to use the framebuffer of the first, then
-you start capturing in the second instance. For the first instance you setup
-the output overlay for the video output, turn on video looping and capture
-to see the blended framebuffer overlay that's being written to by the second
-instance. This setup would require the following commands:
-
-.. code-block:: none
-
- $ sudo modprobe vivid n_devs=2 node_types=0x10101,0x1
- $ v4l2-ctl -d1 --find-fb
- /dev/fb1 is the framebuffer associated with base address 0x12800000
- $ sudo v4l2-ctl -d2 --set-fbuf fb=1
- $ v4l2-ctl -d1 --set-fbuf fb=1
- $ v4l2-ctl -d0 --set-fmt-video=pixelformat='AR15'
- $ v4l2-ctl -d1 --set-fmt-video-out=pixelformat='AR15'
- $ v4l2-ctl -d2 --set-fmt-video=pixelformat='AR15'
- $ v4l2-ctl -d0 -i2
- $ v4l2-ctl -d2 -i2
- $ v4l2-ctl -d2 -c horizontal_movement=4
- $ v4l2-ctl -d1 --overlay=1
- $ v4l2-ctl -d0 -c loop_video=1
- $ v4l2-ctl -d2 --stream-mmap --overlay=1
-
-And from another console:
-
-.. code-block:: none
-
- $ v4l2-ctl -d1 --stream-out-mmap
-
-And yet another console:
-
-.. code-block:: none
-
- $ qv4l2
-
-and start streaming.
-
-As you can see, this is not for the faint of heart...
-
-
Output Overlay
--------------
@@ -1405,8 +1352,6 @@
- Add ARGB888 overlay support: better testing of the alpha channel
- Improve pixel aspect support in the tpg code by passing a real v4l2_fract
- Use per-queue locks and/or per-device locks to improve throughput
-- Add support to loop from a specific output to a specific input across
- vivid instances
- The SDR radio should use the same 'frequencies' for stations as the normal
radio receiver, and give back noise if the frequency doesn't match up with
a station frequency
diff --git a/Documentation/admin-guide/mm/damon/start.rst b/Documentation/admin-guide/mm/damon/start.rst
index 7aa0071..054010a 100644
--- a/Documentation/admin-guide/mm/damon/start.rst
+++ b/Documentation/admin-guide/mm/damon/start.rst
@@ -34,18 +34,56 @@
mounted.
+Snapshot Data Access Patterns
+=============================
+
+The commands below show the memory access pattern of a program at the moment of
+the execution. ::
+
+ $ git clone https://github.com/sjp38/masim; cd masim; make
+ $ sudo damo start "./masim ./configs/stairs.cfg --quiet"
+ $ sudo ./damo show
+ 0 addr [85.541 TiB , 85.541 TiB ) (57.707 MiB ) access 0 % age 10.400 s
+ 1 addr [85.541 TiB , 85.542 TiB ) (413.285 MiB) access 0 % age 11.400 s
+ 2 addr [127.649 TiB , 127.649 TiB) (57.500 MiB ) access 0 % age 1.600 s
+ 3 addr [127.649 TiB , 127.649 TiB) (32.500 MiB ) access 0 % age 500 ms
+ 4 addr [127.649 TiB , 127.649 TiB) (9.535 MiB ) access 100 % age 300 ms
+ 5 addr [127.649 TiB , 127.649 TiB) (8.000 KiB ) access 60 % age 0 ns
+ 6 addr [127.649 TiB , 127.649 TiB) (6.926 MiB ) access 0 % age 1 s
+ 7 addr [127.998 TiB , 127.998 TiB) (120.000 KiB) access 0 % age 11.100 s
+ 8 addr [127.998 TiB , 127.998 TiB) (8.000 KiB ) access 40 % age 100 ms
+ 9 addr [127.998 TiB , 127.998 TiB) (4.000 KiB ) access 0 % age 11 s
+ total size: 577.590 MiB
+ $ sudo ./damo stop
+
+The first command of the above example downloads and builds an artificial
+memory access generator program called ``masim``. The second command asks DAMO
+to execute the artificial generator process start via the given command and
+make DAMON monitors the generator process. The third command retrieves the
+current snapshot of the monitored access pattern of the process from DAMON and
+shows the pattern in a human readable format.
+
+Each line of the output shows which virtual address range (``addr [XX, XX)``)
+of the process is how frequently (``access XX %``) accessed for how long time
+(``age XX``). For example, the fifth region of ~9 MiB size is being most
+frequently accessed for last 300 milliseconds. Finally, the fourth command
+stops DAMON.
+
+Note that DAMON can monitor not only virtual address spaces but multiple types
+of address spaces including the physical address space.
+
+
Recording Data Access Patterns
==============================
The commands below record the memory access patterns of a program and save the
monitoring results to a file. ::
- $ git clone https://github.com/sjp38/masim
- $ cd masim; make; ./masim ./configs/zigzag.cfg &
+ $ ./masim ./configs/zigzag.cfg &
$ sudo damo record -o damon.data $(pidof masim)
-The first two lines of the commands download an artificial memory access
-generator program and run it in the background. The generator will repeatedly
+The line of the commands run the artificial memory access
+generator program again. The generator will repeatedly
access two 100 MiB sized memory regions one by one. You can substitute this
with your real workload. The last line asks ``damo`` to record the access
pattern in the ``damon.data`` file.
diff --git a/Documentation/admin-guide/mm/damon/usage.rst b/Documentation/admin-guide/mm/damon/usage.rst
index 6fce035..26df6cf 100644
--- a/Documentation/admin-guide/mm/damon/usage.rst
+++ b/Documentation/admin-guide/mm/damon/usage.rst
@@ -78,7 +78,7 @@
│ │ │ │ │ │ │ │ ...
│ │ │ │ │ │ ...
│ │ │ │ │ :ref:`schemes <sysfs_schemes>`/nr_schemes
- │ │ │ │ │ │ :ref:`0 <sysfs_scheme>`/action,apply_interval_us
+ │ │ │ │ │ │ :ref:`0 <sysfs_scheme>`/action,target_nid,apply_interval_us
│ │ │ │ │ │ │ :ref:`access_pattern <sysfs_access_pattern>`/
│ │ │ │ │ │ │ │ sz/min,max
│ │ │ │ │ │ │ │ nr_accesses/min,max
@@ -153,7 +153,7 @@
- ``clear_schemes_tried_regions``: Clear the DAMON-based operating scheme
action tried regions directory for each DAMON-based operation scheme of the
kdamond.
-- ``update_schemes_effective_bytes``: Update the contents of
+- ``update_schemes_effective_quotas``: Update the contents of
``effective_bytes`` files for each DAMON-based operation scheme of the
kdamond. For more details, refer to :ref:`quotas directory <sysfs_quotas>`.
@@ -289,14 +289,18 @@
------------
In each scheme directory, five directories (``access_pattern``, ``quotas``,
-``watermarks``, ``filters``, ``stats``, and ``tried_regions``) and two files
-(``action`` and ``apply_interval``) exist.
+``watermarks``, ``filters``, ``stats``, and ``tried_regions``) and three files
+(``action``, ``target_nid`` and ``apply_interval``) exist.
The ``action`` file is for setting and getting the scheme's :ref:`action
<damon_design_damos_action>`. The keywords that can be written to and read
from the file and their meaning are same to those of the list on
:ref:`design doc <damon_design_damos_action>`.
+The ``target_nid`` file is for setting the migration target node, which is
+only meaningful when the ``action`` is either ``migrate_hot`` or
+``migrate_cold``.
+
The ``apply_interval_us`` file is for setting and getting the scheme's
:ref:`apply_interval <damon_design_damos>` in microseconds.
@@ -342,7 +346,7 @@
effective size quota is further adjusted. Reading ``effective_bytes`` returns
the current effective size quota. The file is not updated in real time, so
users should ask DAMON sysfs interface to update the content of the file for
-the stats by writing a special keyword, ``update_schemes_effective_bytes`` to
+the stats by writing a special keyword, ``update_schemes_effective_quotas`` to
the relevant ``kdamonds/<N>/state`` file.
Under ``weights`` directory, three files (``sz_permil``,
@@ -410,19 +414,19 @@
Each filter directory contains six files, namely ``type``, ``matcing``,
``memcg_path``, ``addr_start``, ``addr_end``, and ``target_idx``. To ``type``
-file, you can write one of four special keywords: ``anon`` for anonymous pages,
-``memcg`` for specific memory cgroup, ``addr`` for specific address range (an
-open-ended interval), or ``target`` for specific DAMON monitoring target
-filtering. In case of the memory cgroup filtering, you can specify the memory
-cgroup of the interest by writing the path of the memory cgroup from the
-cgroups mount point to ``memcg_path`` file. In case of the address range
-filtering, you can specify the start and end address of the range to
-``addr_start`` and ``addr_end`` files, respectively. For the DAMON monitoring
-target filtering, you can specify the index of the target between the list of
-the DAMON context's monitoring targets list to ``target_idx`` file. You can
-write ``Y`` or ``N`` to ``matching`` file to filter out pages that does or does
-not match to the type, respectively. Then, the scheme's action will not be
-applied to the pages that specified to be filtered out.
+file, you can write one of five special keywords: ``anon`` for anonymous pages,
+``memcg`` for specific memory cgroup, ``young`` for young pages, ``addr`` for
+specific address range (an open-ended interval), or ``target`` for specific
+DAMON monitoring target filtering. In case of the memory cgroup filtering, you
+can specify the memory cgroup of the interest by writing the path of the memory
+cgroup from the cgroups mount point to ``memcg_path`` file. In case of the
+address range filtering, you can specify the start and end address of the range
+to ``addr_start`` and ``addr_end`` files, respectively. For the DAMON
+monitoring target filtering, you can specify the index of the target between
+the list of the DAMON context's monitoring targets list to ``target_idx`` file.
+You can write ``Y`` or ``N`` to ``matching`` file to filter out pages that does
+or does not match to the type, respectively. Then, the scheme's action will
+not be applied to the pages that specified to be filtered out.
For example, below restricts a DAMOS action to be applied to only non-anonymous
pages of all memory cgroups except ``/having_care_already``.::
@@ -434,7 +438,7 @@
# # further filter out all cgroups except one at '/having_care_already'
echo memcg > 1/type
echo /having_care_already > 1/memcg_path
- echo N > 1/matching
+ echo Y > 1/matching
Note that ``anon`` and ``memcg`` filters are currently supported only when
``paddr`` :ref:`implementation <sysfs_context>` is being used.
diff --git a/Documentation/admin-guide/mm/hugetlbpage.rst b/Documentation/admin-guide/mm/hugetlbpage.rst
index e4d4b4a..f34a0d7 100644
--- a/Documentation/admin-guide/mm/hugetlbpage.rst
+++ b/Documentation/admin-guide/mm/hugetlbpage.rst
@@ -376,6 +376,13 @@
as we don't know until fault time, when the faulting task's mempolicy is
applied, from which node the huge page allocation will be attempted.
+The hugetlb may be migrated between the per-node hugepages pool in the following
+scenarios: memory offline, memory failure, longterm pinning, syscalls(mbind,
+migrate_pages and move_pages), alloc_contig_range() and alloc_contig_pages().
+Now only memory offline, memory failure and syscalls allow fallbacking to allocate
+a new hugetlb on a different node if the current node is unable to allocate during
+hugetlb migration, that means these 3 cases can break the per-node hugepages pool.
+
.. _using_huge_pages:
Using Huge Pages
diff --git a/Documentation/admin-guide/mm/index.rst b/Documentation/admin-guide/mm/index.rst
index 1f883ab..8b35795 100644
--- a/Documentation/admin-guide/mm/index.rst
+++ b/Documentation/admin-guide/mm/index.rst
@@ -10,7 +10,7 @@
Linux memory management is a complex system with many configurable
settings. Most of these settings are available via ``/proc``
-filesystem and can be quired and adjusted using ``sysctl``. These APIs
+filesystem and can be queried and adjusted using ``sysctl``. These APIs
are described in Documentation/admin-guide/sysctl/vm.rst and in `man 5 proc`_.
.. _man 5 proc: http://man7.org/linux/man-pages/man5/proc.5.html
diff --git a/Documentation/admin-guide/mm/ksm.rst b/Documentation/admin-guide/mm/ksm.rst
index a639cac..ad8e7a4 100644
--- a/Documentation/admin-guide/mm/ksm.rst
+++ b/Documentation/admin-guide/mm/ksm.rst
@@ -308,7 +308,7 @@
``advisor_target_scan_time`` parameter. This parameter sets the target time to
scan all the KSM candidate pages. The parameter ``advisor_target_scan_time``
decides how aggressive the scan time advisor scans candidate pages. Lower
-values make the scan time advisor to scan more aggresively. This is the most
+values make the scan time advisor to scan more aggressively. This is the most
important parameter for the configuration of the scan time advisor.
The initial value and the maximum value can be changed with
diff --git a/Documentation/admin-guide/mm/pagemap.rst b/Documentation/admin-guide/mm/pagemap.rst
index f5f065c..caba0f5 100644
--- a/Documentation/admin-guide/mm/pagemap.rst
+++ b/Documentation/admin-guide/mm/pagemap.rst
@@ -118,7 +118,7 @@
21 - KSM
Identical memory pages dynamically shared between one or more processes.
22 - THP
- Contiguous pages which construct transparent hugepages.
+ Contiguous pages which construct THP of any size and mapped by any granularity.
23 - OFFLINE
The page is logically offline.
24 - ZERO_PAGE
@@ -173,27 +173,6 @@
The page-types tool in the tools/mm directory can be used to query the
above flags.
-Using pagemap to do something useful
-====================================
-
-The general procedure for using pagemap to find out about a process' memory
-usage goes like this:
-
- 1. Read ``/proc/pid/maps`` to determine which parts of the memory space are
- mapped to what.
- 2. Select the maps you are interested in -- all of them, or a particular
- library, or the stack or the heap, etc.
- 3. Open ``/proc/pid/pagemap`` and seek to the pages you would like to examine.
- 4. Read a u64 for each page from pagemap.
- 5. Open ``/proc/kpagecount`` and/or ``/proc/kpageflags``. For each PFN you
- just read, seek to that entry in the file, and read the data you want.
-
-For example, to find the "unique set size" (USS), which is the amount of
-memory that a process is using that is not shared with any other process,
-you can go through every map in the process, find the PFNs, look those up
-in kpagecount, and tally up the number of pages that are only referenced
-once.
-
Exceptions for Shared Memory
============================
@@ -252,7 +231,7 @@
- ``PAGE_IS_PRESENT`` - Page is present in the memory
- ``PAGE_IS_SWAPPED`` - Page is in swapped
- ``PAGE_IS_PFNZERO`` - Page has zero PFN
-- ``PAGE_IS_HUGE`` - Page is THP or Hugetlb backed
+- ``PAGE_IS_HUGE`` - Page is PMD-mapped THP or Hugetlb backed
- ``PAGE_IS_SOFT_DIRTY`` - Page is soft-dirty
The ``struct pm_scan_arg`` is used as the argument of the IOCTL.
diff --git a/Documentation/admin-guide/mm/transhuge.rst b/Documentation/admin-guide/mm/transhuge.rst
index 04eb45a..058485d 100644
--- a/Documentation/admin-guide/mm/transhuge.rst
+++ b/Documentation/admin-guide/mm/transhuge.rst
@@ -202,12 +202,11 @@
cat /sys/kernel/mm/transparent_hugepage/hpage_pmd_size
-khugepaged will be automatically started when one or more hugepage
-sizes are enabled (either by directly setting "always" or "madvise",
-or by setting "inherit" while the top-level enabled is set to "always"
-or "madvise"), and it'll be automatically shutdown when the last
-hugepage size is disabled (either by directly setting "never", or by
-setting "inherit" while the top-level enabled is set to "never").
+khugepaged will be automatically started when PMD-sized THP is enabled
+(either of the per-size anon control or the top-level control are set
+to "always" or "madvise"), and it'll be automatically shutdown when
+PMD-sized THP is disabled (when both the per-size anon control and the
+top-level control are "never")
Khugepaged controls
-------------------
@@ -278,7 +277,8 @@
THPs, and lower memory access performance.
``max_ptes_shared`` specifies how many pages can be shared across multiple
-processes. Exceeding the number would block the collapse::
+processes. khugepaged might treat pages of THPs as shared if any page of
+that THP is shared. Exceeding the number would block the collapse::
/sys/kernel/mm/transparent_hugepage/khugepaged/max_ptes_shared
@@ -331,6 +331,31 @@
force
Force the huge option on for all - very useful for testing;
+Shmem can also use "multi-size THP" (mTHP) by adding a new sysfs knob to
+control mTHP allocation:
+'/sys/kernel/mm/transparent_hugepage/hugepages-<size>kB/shmem_enabled',
+and its value for each mTHP is essentially consistent with the global
+setting. An 'inherit' option is added to ensure compatibility with these
+global settings. Conversely, the options 'force' and 'deny' are dropped,
+which are rather testing artifacts from the old ages.
+
+always
+ Attempt to allocate <size> huge pages every time we need a new page;
+
+inherit
+ Inherit the top-level "shmem_enabled" value. By default, PMD-sized hugepages
+ have enabled="inherit" and all other hugepage sizes have enabled="never";
+
+never
+ Do not allocate <size> huge pages;
+
+within_size
+ Only allocate <size> huge page if it will be fully within i_size.
+ Also respect fadvise()/madvise() hints;
+
+advise
+ Only allocate <size> huge pages if requested with fadvise()/madvise();
+
Need of application restart
===========================
@@ -343,10 +368,6 @@
Monitoring usage
================
-.. note::
- Currently the below counters only record events relating to
- PMD-sized THP. Events relating to other THP sizes are not included.
-
The number of PMD-sized anonymous transparent huge pages currently used by the
system is available by reading the AnonHugePages field in ``/proc/meminfo``.
To identify what applications are using PMD-sized anonymous transparent huge
@@ -369,7 +390,7 @@
thp_fault_alloc
is incremented every time a huge page is successfully
- allocated to handle a page fault.
+ allocated and charged to handle a page fault.
thp_collapse_alloc
is incremented by khugepaged when it has found
@@ -377,7 +398,7 @@
successfully allocated a new huge page to store the data.
thp_fault_fallback
- is incremented if a page fault fails to allocate
+ is incremented if a page fault fails to allocate or charge
a huge page and instead falls back to using small pages.
thp_fault_fallback_charge
@@ -391,20 +412,23 @@
the allocation.
thp_file_alloc
- is incremented every time a file huge page is successfully
- allocated.
+ is incremented every time a shmem huge page is successfully
+ allocated (Note that despite being named after "file", the counter
+ measures only shmem).
thp_file_fallback
- is incremented if a file huge page is attempted to be allocated
- but fails and instead falls back to using small pages.
+ is incremented if a shmem huge page is attempted to be allocated
+ but fails and instead falls back to using small pages. (Note that
+ despite being named after "file", the counter measures only shmem).
thp_file_fallback_charge
- is incremented if a file huge page cannot be charged and instead
+ is incremented if a shmem huge page cannot be charged and instead
falls back to using small pages even though the allocation was
- successful.
+ successful. (Note that despite being named after "file", the
+ counter measures only shmem).
thp_file_mapped
- is incremented every time a file huge page is mapped into
+ is incremented every time a file or shmem huge page is mapped into
user address space.
thp_split_page
@@ -447,6 +471,62 @@
Usually because failed to allocate some continuous swap space
for the huge page.
+In /sys/kernel/mm/transparent_hugepage/hugepages-<size>kB/stats, There are
+also individual counters for each huge page size, which can be utilized to
+monitor the system's effectiveness in providing huge pages for usage. Each
+counter has its own corresponding file.
+
+anon_fault_alloc
+ is incremented every time a huge page is successfully
+ allocated and charged to handle a page fault.
+
+anon_fault_fallback
+ is incremented if a page fault fails to allocate or charge
+ a huge page and instead falls back to using huge pages with
+ lower orders or small pages.
+
+anon_fault_fallback_charge
+ is incremented if a page fault fails to charge a huge page and
+ instead falls back to using huge pages with lower orders or
+ small pages even though the allocation was successful.
+
+swpout
+ is incremented every time a huge page is swapped out in one
+ piece without splitting.
+
+swpout_fallback
+ is incremented if a huge page has to be split before swapout.
+ Usually because failed to allocate some continuous swap space
+ for the huge page.
+
+shmem_alloc
+ is incremented every time a shmem huge page is successfully
+ allocated.
+
+shmem_fallback
+ is incremented if a shmem huge page is attempted to be allocated
+ but fails and instead falls back to using small pages.
+
+shmem_fallback_charge
+ is incremented if a shmem huge page cannot be charged and instead
+ falls back to using small pages even though the allocation was
+ successful.
+
+split
+ is incremented every time a huge page is successfully split into
+ smaller orders. This can happen for a variety of reasons but a
+ common reason is that a huge page is old and is being reclaimed.
+
+split_failed
+ is incremented if kernel fails to split huge
+ page. This can happen if the page was pinned by somebody.
+
+split_deferred
+ is incremented when a huge page is put onto split queue.
+ This happens when a huge page is partially unmapped and splitting
+ it would free up some memory. Pages on split queue are going to
+ be split under memory pressure, if splitting is possible.
+
As the system ages, allocating huge pages may be expensive as the
system uses memory compaction to copy data around memory to free a
huge page for use. There are some counters in ``/proc/vmstat`` to help
diff --git a/Documentation/admin-guide/mm/zswap.rst b/Documentation/admin-guide/mm/zswap.rst
index 1363267..3598dcd7 100644
--- a/Documentation/admin-guide/mm/zswap.rst
+++ b/Documentation/admin-guide/mm/zswap.rst
@@ -111,35 +111,6 @@
compressed length of the page is set to zero and the pattern or same-filled
value is stored.
-Same-value filled pages identification feature is enabled by default and can be
-disabled at boot time by setting the ``same_filled_pages_enabled`` attribute
-to 0, e.g. ``zswap.same_filled_pages_enabled=0``. It can also be enabled and
-disabled at runtime using the sysfs ``same_filled_pages_enabled``
-attribute, e.g.::
-
- echo 1 > /sys/module/zswap/parameters/same_filled_pages_enabled
-
-When zswap same-filled page identification is disabled at runtime, it will stop
-checking for the same-value filled pages during store operation.
-In other words, every page will be then considered non-same-value filled.
-However, the existing pages which are marked as same-value filled pages remain
-stored unchanged in zswap until they are either loaded or invalidated.
-
-In some circumstances it might be advantageous to make use of just the zswap
-ability to efficiently store same-filled pages without enabling the whole
-compressed page storage.
-In this case the handling of non-same-value pages by zswap (enabled by default)
-can be disabled by setting the ``non_same_filled_pages_enabled`` attribute
-to 0, e.g. ``zswap.non_same_filled_pages_enabled=0``.
-It can also be enabled and disabled at runtime using the sysfs
-``non_same_filled_pages_enabled`` attribute, e.g.::
-
- echo 1 > /sys/module/zswap/parameters/non_same_filled_pages_enabled
-
-Disabling both ``zswap.same_filled_pages_enabled`` and
-``zswap.non_same_filled_pages_enabled`` effectively disables accepting any new
-pages by zswap.
-
To prevent zswap from shrinking pool when zswap is full and there's a high
pressure on swap (this will result in flipping pages in and out zswap pool
without any real benefit but with a performance drop for the system), a
diff --git a/Documentation/admin-guide/perf/hisi-pmu.rst b/Documentation/admin-guide/perf/hisi-pmu.rst
index e0174d2..5cc248d 100644
--- a/Documentation/admin-guide/perf/hisi-pmu.rst
+++ b/Documentation/admin-guide/perf/hisi-pmu.rst
@@ -20,7 +20,6 @@
HHA and DDRC etc. The available events and configuration options shall
be described in the sysfs, see:
-/sys/devices/hisi_sccl{X}_<l3c{Y}/hha{Y}/ddrc{Y}>/, or
/sys/bus/event_source/devices/hisi_sccl{X}_<l3c{Y}/hha{Y}/ddrc{Y}>.
The "perf list" command shall list the available events from sysfs.
diff --git a/Documentation/admin-guide/perf/hns3-pmu.rst b/Documentation/admin-guide/perf/hns3-pmu.rst
index 75a4084..1195e57 100644
--- a/Documentation/admin-guide/perf/hns3-pmu.rst
+++ b/Documentation/admin-guide/perf/hns3-pmu.rst
@@ -16,7 +16,7 @@
The HNS3 PMU driver registers a perf PMU with the name of its sicl id.::
- /sys/devices/hns3_pmu_sicl_<sicl_id>
+ /sys/bus/event_source/devices/hns3_pmu_sicl_<sicl_id>
PMU driver provides description of available events, filter modes, format,
identifier and cpumask in sysfs.
@@ -40,9 +40,9 @@
Example usage of checking event code and subevent code::
- $# cat /sys/devices/hns3_pmu_sicl_0/events/dly_tx_normal_to_mac_time
+ $# cat /sys/bus/event_source/devices/hns3_pmu_sicl_0/events/dly_tx_normal_to_mac_time
config=0x00204
- $# cat /sys/devices/hns3_pmu_sicl_0/events/dly_tx_normal_to_mac_packet_num
+ $# cat /sys/bus/event_source/devices/hns3_pmu_sicl_0/events/dly_tx_normal_to_mac_packet_num
config=0x10204
Each performance statistic has a pair of events to get two values to
@@ -60,7 +60,7 @@
Example usage of checking supported filter mode::
- $# cat /sys/devices/hns3_pmu_sicl_0/filtermode/bw_ssu_rpu_byte_num
+ $# cat /sys/bus/event_source/devices/hns3_pmu_sicl_0/filtermode/bw_ssu_rpu_byte_num
filter mode supported: global/port/port-tc/func/func-queue/
Example usage of perf::
diff --git a/Documentation/admin-guide/perf/qcom_l2_pmu.rst b/Documentation/admin-guide/perf/qcom_l2_pmu.rst
index c130178..c37c6be 100644
--- a/Documentation/admin-guide/perf/qcom_l2_pmu.rst
+++ b/Documentation/admin-guide/perf/qcom_l2_pmu.rst
@@ -10,7 +10,7 @@
the physical PMUs.
The driver provides a description of its available events and configuration
-options in sysfs, see /sys/devices/l2cache_0.
+options in sysfs, see /sys/bus/event_source/devices/l2cache_0.
The "format" directory describes the format of the events.
diff --git a/Documentation/admin-guide/perf/qcom_l3_pmu.rst b/Documentation/admin-guide/perf/qcom_l3_pmu.rst
index a3d014a..a66556b 100644
--- a/Documentation/admin-guide/perf/qcom_l3_pmu.rst
+++ b/Documentation/admin-guide/perf/qcom_l3_pmu.rst
@@ -9,7 +9,7 @@
for aggregating across slices.
The driver provides a description of its available events and configuration
-options in sysfs, see /sys/devices/l3cache*. Given that these are uncore PMUs
+options in sysfs, see /sys/bus/event_source/devices/l3cache*. Given that these are uncore PMUs
the driver also exposes a "cpumask" sysfs attribute which contains a mask
consisting of one CPU per socket which will be used to handle all the PMU
events on that socket.
diff --git a/Documentation/admin-guide/perf/thunderx2-pmu.rst b/Documentation/admin-guide/perf/thunderx2-pmu.rst
index 01f1582..9255f7b 100644
--- a/Documentation/admin-guide/perf/thunderx2-pmu.rst
+++ b/Documentation/admin-guide/perf/thunderx2-pmu.rst
@@ -22,7 +22,7 @@
L3C devices. Each PMU can be used to count up to 4 (DMC/L3C) or up to 8
(CCPI2) events simultaneously. The PMUs provide a description of their
available events and configuration options under sysfs, see
-/sys/devices/uncore_<l3c_S/dmc_S/ccpi2_S/>; S is the socket id.
+/sys/bus/event_source/devices/uncore_<l3c_S/dmc_S/ccpi2_S/>; S is the socket id.
The driver does not support sampling, therefore "perf record" will not
work. Per-task perf sessions are also not supported.
diff --git a/Documentation/admin-guide/perf/xgene-pmu.rst b/Documentation/admin-guide/perf/xgene-pmu.rst
index 644f8ed..98ccb8e 100644
--- a/Documentation/admin-guide/perf/xgene-pmu.rst
+++ b/Documentation/admin-guide/perf/xgene-pmu.rst
@@ -13,7 +13,7 @@
The xgene-pmu driver registers several perf PMU drivers. Each of the perf
driver provides description of its available events and configuration options
-in sysfs, see /sys/devices/<l3cX/iobX/mcbX/mcX>/.
+in sysfs, see /sys/bus/event_source/devices/<l3cX/iobX/mcbX/mcX>/.
The "format" directory describes format of the config (event ID),
config1 (agent ID) fields of the perf_event_attr structure. The "events"
diff --git a/Documentation/admin-guide/pm/amd-pstate.rst b/Documentation/admin-guide/pm/amd-pstate.rst
index 1e0d101..d0324d4 100644
--- a/Documentation/admin-guide/pm/amd-pstate.rst
+++ b/Documentation/admin-guide/pm/amd-pstate.rst
@@ -281,6 +281,22 @@
firmware, if EPP feature is disabled, driver will ignore the written value
This attribute is read-write.
+``boost``
+The `boost` sysfs attribute provides control over the CPU core
+performance boost, allowing users to manage the maximum frequency limitation
+of the CPU. This attribute can be used to enable or disable the boost feature
+on individual CPUs.
+
+When the boost feature is enabled, the CPU can dynamically increase its frequency
+beyond the base frequency, providing enhanced performance for demanding workloads.
+On the other hand, disabling the boost feature restricts the CPU to operate at the
+base frequency, which may be desirable in certain scenarios to prioritize power
+efficiency or manage temperature.
+
+To manipulate the `boost` attribute, users can write a value of `0` to disable the
+boost or `1` to enable it, for the respective CPU using the sysfs path
+`/sys/devices/system/cpu/cpuX/cpufreq/boost`, where `X` represents the CPU number.
+
Other performance and frequency values can be read back from
``/sys/devices/system/cpu/cpuX/acpi_cppc/``, see :ref:`cppc_sysfs`.
@@ -406,7 +422,7 @@
``/sys/devices/system/cpu/amd_pstate/`` directory and affect all CPUs.
``status``
- Operation mode of the driver: "active", "passive" or "disable".
+ Operation mode of the driver: "active", "passive", "guided" or "disable".
"active"
The driver is functional and in the ``active mode``
diff --git a/Documentation/admin-guide/pm/cpufreq.rst b/Documentation/admin-guide/pm/cpufreq.rst
index 6adb7988..fe1be4ad 100644
--- a/Documentation/admin-guide/pm/cpufreq.rst
+++ b/Documentation/admin-guide/pm/cpufreq.rst
@@ -267,6 +267,10 @@
``related_cpus``
List of all (online and offline) CPUs belonging to this policy.
+``scaling_available_frequencies``
+ List of available frequencies of the CPUs belonging to this policy
+ (in kHz).
+
``scaling_available_governors``
List of ``CPUFreq`` scaling governors present in the kernel that can
be attached to this policy or (if the |intel_pstate| scaling driver is
diff --git a/Documentation/admin-guide/pmf.rst b/Documentation/admin-guide/pmf.rst
deleted file mode 100644
index 9ee729f..0000000
--- a/Documentation/admin-guide/pmf.rst
+++ /dev/null
@@ -1,24 +0,0 @@
-.. SPDX-License-Identifier: GPL-2.0
-
-Set udev rules for PMF Smart PC Builder
----------------------------------------
-
-AMD PMF(Platform Management Framework) Smart PC Solution builder has to set the system states
-like S0i3, Screen lock, hibernate etc, based on the output actions provided by the PMF
-TA (Trusted Application).
-
-In order for this to work the PMF driver generates a uevent for userspace to react to. Below are
-sample udev rules that can facilitate this experience when a machine has PMF Smart PC solution builder
-enabled.
-
-Please add the following line(s) to
-``/etc/udev/rules.d/99-local.rules``::
-
- DRIVERS=="amd-pmf", ACTION=="change", ENV{EVENT_ID}=="0", RUN+="/usr/bin/systemctl suspend"
- DRIVERS=="amd-pmf", ACTION=="change", ENV{EVENT_ID}=="1", RUN+="/usr/bin/systemctl hibernate"
- DRIVERS=="amd-pmf", ACTION=="change", ENV{EVENT_ID}=="2", RUN+="/bin/loginctl lock-sessions"
-
-EVENT_ID values:
-0= Put the system to S0i3/S2Idle
-1= Put the system to hibernate
-2= Lock the screen
diff --git a/Documentation/admin-guide/ramoops.rst b/Documentation/admin-guide/ramoops.rst
index e9f8514..6f534a7 100644
--- a/Documentation/admin-guide/ramoops.rst
+++ b/Documentation/admin-guide/ramoops.rst
@@ -23,6 +23,8 @@
* ``mem_size`` for the size. The memory size will be rounded down to a
power of two.
* ``mem_type`` to specify if the memory type (default is pgprot_writecombine).
+ * ``mem_name`` to specify a memory region defined by ``reserve_mem`` command
+ line parameter.
Typically the default value of ``mem_type=0`` should be used as that sets the pstore
mapping to pgprot_writecombine. Setting ``mem_type=1`` attempts to use
@@ -118,6 +120,17 @@
return ret;
}
+ D. Using a region of memory reserved via ``reserve_mem`` command line
+ parameter. The address and size will be defined by the ``reserve_mem``
+ parameter. Note, that ``reserve_mem`` may not always allocate memory
+ in the same location, and cannot be relied upon. Testing will need
+ to be done, and it may not work on every machine, nor every kernel.
+ Consider this a "best effort" approach. The ``reserve_mem`` option
+ takes a size, alignment and name as arguments. The name is used
+ to map the memory to a label that can be retrieved by ramoops.
+
+ reserver_mem=2M:4096:oops ramoops.mem_name=oops
+
You can specify either RAM memory or peripheral devices' memory. However, when
specifying RAM, be sure to reserve the memory by issuing memblock_reserve()
very early in the architecture code, e.g.::
diff --git a/Documentation/admin-guide/reporting-regressions.rst b/Documentation/admin-guide/reporting-regressions.rst
index 76b246e..9465183 100644
--- a/Documentation/admin-guide/reporting-regressions.rst
+++ b/Documentation/admin-guide/reporting-regressions.rst
@@ -42,12 +42,12 @@
--------------------
-What is a "regression" and what is the "no regressions rule"?
+What is a "regression" and what is the "no regressions" rule?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
It's a regression if some application or practical use case running fine with
one Linux kernel works worse or not at all with a newer version compiled using a
-similar configuration. The "no regressions rule" forbids this to take place; if
+similar configuration. The "no regressions" rule forbids this to take place; if
it happens by accident, developers that caused it are expected to quickly fix
the issue.
@@ -173,7 +173,7 @@
------------------------------------
-What is the goal of the "no regressions rule"?
+What is the goal of the "no regressions" rule?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Users should feel safe when updating kernel versions and not have to worry
@@ -199,8 +199,8 @@
turned out to be wrong when they assumed a particular situation was warranting
an exception.
-Who ensures the "no regressions" is actually followed?
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Who ensures the "no regressions" rule is actually followed?
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The subsystem maintainers should take care of that, which are watched and
supported by the tree maintainers -- e.g. Linus Torvalds for mainline and
diff --git a/Documentation/admin-guide/sysctl/kernel.rst b/Documentation/admin-guide/sysctl/kernel.rst
index 7fd43947..f8bc163 100644
--- a/Documentation/admin-guide/sysctl/kernel.rst
+++ b/Documentation/admin-guide/sysctl/kernel.rst
@@ -454,7 +454,7 @@
On architectures where unaligned accesses cause traps, and where this
feature is supported (``CONFIG_SYSCTL_ARCH_UNALIGN_NO_WARN``;
-currently, ``arc`` and ``loongarch``), controls whether all
+currently, ``arc``, ``parisc`` and ``loongarch``), controls whether all
unaligned traps are logged.
= =============================================================
diff --git a/Documentation/admin-guide/sysctl/net.rst b/Documentation/admin-guide/sysctl/net.rst
index 7250c05..7b0c429 100644
--- a/Documentation/admin-guide/sysctl/net.rst
+++ b/Documentation/admin-guide/sysctl/net.rst
@@ -72,6 +72,7 @@
- riscv64
- riscv32
- loongarch64
+ - arc
And the older cBPF JIT supported on the following archs:
diff --git a/Documentation/admin-guide/sysctl/vm.rst b/Documentation/admin-guide/sysctl/vm.rst
index c59889d..f48eaa9 100644
--- a/Documentation/admin-guide/sysctl/vm.rst
+++ b/Documentation/admin-guide/sysctl/vm.rst
@@ -36,6 +36,7 @@
- dirtytime_expire_seconds
- dirty_writeback_centisecs
- drop_caches
+- enable_soft_offline
- extfrag_threshold
- highmem_is_dirtyable
- hugetlb_shm_group
@@ -43,6 +44,7 @@
- legacy_va_layout
- lowmem_reserve_ratio
- max_map_count
+- mem_profiling (only if CONFIG_MEM_ALLOC_PROFILING=y)
- memory_failure_early_kill
- memory_failure_recovery
- min_free_kbytes
@@ -266,6 +268,43 @@
These are informational only. They do not mean that anything is wrong
with your system. To disable them, echo 4 (bit 2) into drop_caches.
+enable_soft_offline
+===================
+Correctable memory errors are very common on servers. Soft-offline is kernel's
+solution for memory pages having (excessive) corrected memory errors.
+
+For different types of page, soft-offline has different behaviors / costs.
+
+- For a raw error page, soft-offline migrates the in-use page's content to
+ a new raw page.
+
+- For a page that is part of a transparent hugepage, soft-offline splits the
+ transparent hugepage into raw pages, then migrates only the raw error page.
+ As a result, user is transparently backed by 1 less hugepage, impacting
+ memory access performance.
+
+- For a page that is part of a HugeTLB hugepage, soft-offline first migrates
+ the entire HugeTLB hugepage, during which a free hugepage will be consumed
+ as migration target. Then the original hugepage is dissolved into raw
+ pages without compensation, reducing the capacity of the HugeTLB pool by 1.
+
+It is user's call to choose between reliability (staying away from fragile
+physical memory) vs performance / capacity implications in transparent and
+HugeTLB cases.
+
+For all architectures, enable_soft_offline controls whether to soft offline
+memory pages. When set to 1, kernel attempts to soft offline the pages
+whenever it thinks needed. When set to 0, kernel returns EOPNOTSUPP to
+the request to soft offline the pages. Its default value is 1.
+
+It is worth mentioning that after setting enable_soft_offline to 0, the
+following requests to soft offline pages will not be performed:
+
+- Request to soft offline pages from RAS Correctable Errors Collector.
+
+- On ARM, the request to soft offline pages from GHES driver.
+
+- On PARISC, the request to soft offline pages from Page Deallocation Table.
extfrag_threshold
=================
@@ -425,6 +464,21 @@
The default value is 65530.
+mem_profiling
+==============
+
+Enable memory profiling (when CONFIG_MEM_ALLOC_PROFILING=y)
+
+1: Enable memory profiling.
+
+0: Disable memory profiling.
+
+Enabling memory profiling introduces a small performance overhead for all
+memory allocations.
+
+The default value depends on CONFIG_MEM_ALLOC_PROFILING_ENABLED_BY_DEFAULT.
+
+
memory_failure_early_kill:
==========================
diff --git a/Documentation/admin-guide/sysrq.rst b/Documentation/admin-guide/sysrq.rst
index 2f2e5bd4..a85b338 100644
--- a/Documentation/admin-guide/sysrq.rst
+++ b/Documentation/admin-guide/sysrq.rst
@@ -161,6 +161,8 @@
will be printed to your console. (``0``, for example would make
it so that only emergency messages like PANICs or OOPSes would
make it to your console.)
+
+``R`` Replay the kernel log messages on consoles.
=========== ===================================================================
Okay, so what can I use them for?
@@ -211,6 +213,13 @@
"just thaw ``it(j)``" is useful if your system becomes unresponsive due to a
frozen (probably root) filesystem via the FIFREEZE ioctl.
+``Replay logs(R)`` is useful to view the kernel log messages when system is hung
+or you are not able to use dmesg command to view the messages in printk buffer.
+User may have to press the key combination multiple times if console system is
+busy. If it is completely locked up, then messages won't be printed. Output
+messages depend on current console loglevel, which can be modified using
+sysrq[0-9] (see above).
+
Sometimes SysRq seems to get 'stuck' after using it, what can I do?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
diff --git a/Documentation/admin-guide/verify-bugs-and-bisect-regressions.rst b/Documentation/admin-guide/verify-bugs-and-bisect-regressions.rst
index c389d4f..6281eae 100644
--- a/Documentation/admin-guide/verify-bugs-and-bisect-regressions.rst
+++ b/Documentation/admin-guide/verify-bugs-and-bisect-regressions.rst
@@ -23,7 +23,7 @@
up in the reference section, then jump back to where you left off.
..
Find the latest rendered version of this text here:
- https://docs.kernel.org/admin-guide/verify-bugs-and-bisect-regressions.rst.html
+ https://docs.kernel.org/admin-guide/verify-bugs-and-bisect-regressions.html
The essence of the process (aka 'TL;DR')
========================================
diff --git a/Documentation/arch/arm64/cpu-hotplug.rst b/Documentation/arch/arm64/cpu-hotplug.rst
new file mode 100644
index 0000000..76ba8d9
--- /dev/null
+++ b/Documentation/arch/arm64/cpu-hotplug.rst
@@ -0,0 +1,79 @@
+.. SPDX-License-Identifier: GPL-2.0
+.. _cpuhp_index:
+
+====================
+CPU Hotplug and ACPI
+====================
+
+CPU hotplug in the arm64 world is commonly used to describe the kernel taking
+CPUs online/offline using PSCI. This document is about ACPI firmware allowing
+CPUs that were not available during boot to be added to the system later.
+
+``possible`` and ``present`` refer to the state of the CPU as seen by linux.
+
+
+CPU Hotplug on physical systems - CPUs not present at boot
+----------------------------------------------------------
+
+Physical systems need to mark a CPU that is ``possible`` but not ``present`` as
+being ``present``. An example would be a dual socket machine, where the package
+in one of the sockets can be replaced while the system is running.
+
+This is not supported.
+
+In the arm64 world CPUs are not a single device but a slice of the system.
+There are no systems that support the physical addition (or removal) of CPUs
+while the system is running, and ACPI is not able to sufficiently describe
+them.
+
+e.g. New CPUs come with new caches, but the platform's cache toplogy is
+described in a static table, the PPTT. How caches are shared between CPUs is
+not discoverable, and must be described by firmware.
+
+e.g. The GIC redistributor for each CPU must be accessed by the driver during
+boot to discover the system wide supported features. ACPI's MADT GICC
+structures can describe a redistributor associated with a disabled CPU, but
+can't describe whether the redistributor is accessible, only that it is not
+'always on'.
+
+arm64's ACPI tables assume that everything described is ``present``.
+
+
+CPU Hotplug on virtual systems - CPUs not enabled at boot
+---------------------------------------------------------
+
+Virtual systems have the advantage that all the properties the system will
+ever have can be described at boot. There are no power-domain considerations
+as such devices are emulated.
+
+CPU Hotplug on virtual systems is supported. It is distinct from physical
+CPU Hotplug as all resources are described as ``present``, but CPUs may be
+marked as disabled by firmware. Only the CPU's online/offline behaviour is
+influenced by firmware. An example is where a virtual machine boots with a
+single CPU, and additional CPUs are added once a cloud orchestrator deploys
+the workload.
+
+For a virtual machine, the VMM (e.g. Qemu) plays the part of firmware.
+
+Virtual hotplug is implemented as a firmware policy affecting which CPUs can be
+brought online. Firmware can enforce its policy via PSCI's return codes. e.g.
+``DENIED``.
+
+The ACPI tables must describe all the resources of the virtual machine. CPUs
+that firmware wishes to disable either from boot (or later) should not be
+``enabled`` in the MADT GICC structures, but should have the ``online capable``
+bit set, to indicate they can be enabled later. The boot CPU must be marked as
+``enabled``. The 'always on' GICR structure must be used to describe the
+redistributors.
+
+CPUs described as ``online capable`` but not ``enabled`` can be set to enabled
+by the DSDT's Processor object's _STA method. On virtual systems the _STA method
+must always report the CPU as ``present``. Changes to the firmware policy can
+be notified to the OS via device-check or eject-request.
+
+CPUs described as ``enabled`` in the static table, should not have their _STA
+modified dynamically by firmware. Soft-restart features such as kexec will
+re-read the static properties of the system from these static tables, and
+may malfunction if these no longer describe the running system. Linux will
+re-discover the dynamic properties of the system from the _STA method later
+during boot.
diff --git a/Documentation/arch/arm64/index.rst b/Documentation/arch/arm64/index.rst
index d08e9242..78544de 100644
--- a/Documentation/arch/arm64/index.rst
+++ b/Documentation/arch/arm64/index.rst
@@ -13,6 +13,7 @@
asymmetric-32bit
booting
cpu-feature-registers
+ cpu-hotplug
elf_hwcaps
hugetlbpage
kdump
diff --git a/Documentation/arch/arm64/memory.rst b/Documentation/arch/arm64/memory.rst
index 55a55f3..8a65898 100644
--- a/Documentation/arch/arm64/memory.rst
+++ b/Documentation/arch/arm64/memory.rst
@@ -18,12 +18,10 @@
only available when running with a 64KB page size and expands the
number of descriptors in the first level of translation.
-User addresses have bits 63:48 set to 0 while the kernel addresses have
-the same bits set to 1. TTBRx selection is given by bit 63 of the
-virtual address. The swapper_pg_dir contains only kernel (global)
-mappings while the user pgd contains only user (non-global) mappings.
-The swapper_pg_dir address is written to TTBR1 and never written to
-TTBR0.
+TTBRx selection is given by bit 55 of the virtual address. The
+swapper_pg_dir contains only kernel (global) mappings while the user pgd
+contains only user (non-global) mappings. The swapper_pg_dir address is
+written to TTBR1 and never written to TTBR0.
AArch64 Linux memory layout with 4KB pages + 4 levels (48-bit)::
@@ -65,14 +63,14 @@
+--------+--------+--------+--------+--------+--------+--------+--------+
|63 56|55 48|47 40|39 32|31 24|23 16|15 8|7 0|
+--------+--------+--------+--------+--------+--------+--------+--------+
- | | | | | |
- | | | | | v
- | | | | | [11:0] in-page offset
- | | | | +-> [20:12] L3 index
- | | | +-----------> [29:21] L2 index
- | | +---------------------> [38:30] L1 index
- | +-------------------------------> [47:39] L0 index
- +-------------------------------------------------> [63] TTBR0/1
+ | | | | | |
+ | | | | | v
+ | | | | | [11:0] in-page offset
+ | | | | +-> [20:12] L3 index
+ | | | +-----------> [29:21] L2 index
+ | | +---------------------> [38:30] L1 index
+ | +-------------------------------> [47:39] L0 index
+ +----------------------------------------> [55] TTBR0/1
Translation table lookup with 64KB pages::
@@ -80,14 +78,14 @@
+--------+--------+--------+--------+--------+--------+--------+--------+
|63 56|55 48|47 40|39 32|31 24|23 16|15 8|7 0|
+--------+--------+--------+--------+--------+--------+--------+--------+
- | | | | |
- | | | | v
- | | | | [15:0] in-page offset
- | | | +----------> [28:16] L3 index
- | | +--------------------------> [41:29] L2 index
- | +-------------------------------> [47:42] L1 index (48-bit)
- | [51:42] L1 index (52-bit)
- +-------------------------------------------------> [63] TTBR0/1
+ | | | | |
+ | | | | v
+ | | | | [15:0] in-page offset
+ | | | +----------> [28:16] L3 index
+ | | +--------------------------> [41:29] L2 index
+ | +-------------------------------> [47:42] L1 index (48-bit)
+ | [51:42] L1 index (52-bit)
+ +----------------------------------------> [55] TTBR0/1
When using KVM without the Virtualization Host Extensions, the
diff --git a/Documentation/arch/arm64/silicon-errata.rst b/Documentation/arch/arm64/silicon-errata.rst
index d33e27c..50327c0 100644
--- a/Documentation/arch/arm64/silicon-errata.rst
+++ b/Documentation/arch/arm64/silicon-errata.rst
@@ -122,24 +122,50 @@
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A76 | #1490853 | N/A |
+----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A76 | #3324349 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A77 | #1491015 | N/A |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A77 | #1508412 | ARM64_ERRATUM_1508412 |
+----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A77 | #3324348 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A78 | #3324344 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A78C | #3324346,3324347| ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A710 | #2119858 | ARM64_ERRATUM_2119858 |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A710 | #2054223 | ARM64_ERRATUM_2054223 |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A710 | #2224489 | ARM64_ERRATUM_2224489 |
+----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A710 | #3324338 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A715 | #2645198 | ARM64_ERRATUM_2645198 |
+----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A720 | #3456091 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A725 | #3456106 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-X1 | #1502854 | N/A |
+----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-X1 | #3324344 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-X1C | #3324346 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-X2 | #2119858 | ARM64_ERRATUM_2119858 |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-X2 | #2224489 | ARM64_ERRATUM_2224489 |
+----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-X2 | #3324338 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-X3 | #3324335 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-X4 | #3194386 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-X925 | #3324334 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
| ARM | Neoverse-N1 | #1188873,1418040| ARM64_ERRATUM_1418040 |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Neoverse-N1 | #1349291 | N/A |
@@ -148,14 +174,24 @@
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Neoverse-N1 | #1542419 | ARM64_ERRATUM_1542419 |
+----------------+-----------------+-----------------+-----------------------------+
+| ARM | Neoverse-N1 | #3324349 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
| ARM | Neoverse-N2 | #2139208 | ARM64_ERRATUM_2139208 |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Neoverse-N2 | #2067961 | ARM64_ERRATUM_2067961 |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Neoverse-N2 | #2253138 | ARM64_ERRATUM_2253138 |
+----------------+-----------------+-----------------+-----------------------------+
+| ARM | Neoverse-N2 | #3324339 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
| ARM | Neoverse-V1 | #1619801 | N/A |
+----------------+-----------------+-----------------+-----------------------------+
+| ARM | Neoverse-V1 | #3324341 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Neoverse-V2 | #3324336 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Neoverse-V3 | #3312417 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
| ARM | MMU-500 | #841119,826419 | N/A |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | MMU-600 | #1076982,1209401| N/A |
diff --git a/Documentation/arch/m68k/buddha-driver.rst b/Documentation/arch/m68k/buddha-driver.rst
index 20e4014..5d1bc82 100644
--- a/Documentation/arch/m68k/buddha-driver.rst
+++ b/Documentation/arch/m68k/buddha-driver.rst
@@ -173,7 +173,7 @@
the timing will always be mode 0 8-bit compatible, no matter
what you have selected in the speed register:
-781ns select, IOR/IOW after 4 clock cycles (=314ns) aktive.
+781ns select, IOR/IOW after 4 clock cycles (=314ns) active.
All the timings with a very short select-signal (the 355ns
fast accesses) depend on the accelerator card used in the
diff --git a/Documentation/arch/powerpc/cpu_families.rst b/Documentation/arch/powerpc/cpu_families.rst
index eb7e606..f55433c 100644
--- a/Documentation/arch/powerpc/cpu_families.rst
+++ b/Documentation/arch/powerpc/cpu_families.rst
@@ -128,24 +128,6 @@
- All 32 bit::
+--------------+
- | 401 |
- +--------------+
- |
- |
- v
- +--------------+
- | 403 |
- +--------------+
- |
- |
- v
- +--------------+
- | 405 |
- +--------------+
- |
- |
- v
- +--------------+
| 440 |
+--------------+
|
diff --git a/Documentation/arch/powerpc/dexcr.rst b/Documentation/arch/powerpc/dexcr.rst
index 615a631f..ab07242 100644
--- a/Documentation/arch/powerpc/dexcr.rst
+++ b/Documentation/arch/powerpc/dexcr.rst
@@ -36,8 +36,145 @@
Configuration
=============
-The DEXCR is currently unconfigurable. All threads are run with the
-NPHIE aspect enabled.
+prctl
+-----
+
+A process can control its own userspace DEXCR value using the
+``PR_PPC_GET_DEXCR`` and ``PR_PPC_SET_DEXCR`` pair of
+:manpage:`prctl(2)` commands. These calls have the form::
+
+ prctl(PR_PPC_GET_DEXCR, unsigned long which, 0, 0, 0);
+ prctl(PR_PPC_SET_DEXCR, unsigned long which, unsigned long ctrl, 0, 0);
+
+The possible 'which' and 'ctrl' values are as follows. Note there is no relation
+between the 'which' value and the DEXCR aspect's index.
+
+.. flat-table::
+ :header-rows: 1
+ :widths: 2 7 1
+
+ * - ``prctl()`` which
+ - Aspect name
+ - Aspect index
+
+ * - ``PR_PPC_DEXCR_SBHE``
+ - Speculative Branch Hint Enable (SBHE)
+ - 0
+
+ * - ``PR_PPC_DEXCR_IBRTPD``
+ - Indirect Branch Recurrent Target Prediction Disable (IBRTPD)
+ - 3
+
+ * - ``PR_PPC_DEXCR_SRAPD``
+ - Subroutine Return Address Prediction Disable (SRAPD)
+ - 4
+
+ * - ``PR_PPC_DEXCR_NPHIE``
+ - Non-Privileged Hash Instruction Enable (NPHIE)
+ - 5
+
+.. flat-table::
+ :header-rows: 1
+ :widths: 2 8
+
+ * - ``prctl()`` ctrl
+ - Meaning
+
+ * - ``PR_PPC_DEXCR_CTRL_EDITABLE``
+ - This aspect can be configured with PR_PPC_SET_DEXCR (get only)
+
+ * - ``PR_PPC_DEXCR_CTRL_SET``
+ - This aspect is set / set this aspect
+
+ * - ``PR_PPC_DEXCR_CTRL_CLEAR``
+ - This aspect is clear / clear this aspect
+
+ * - ``PR_PPC_DEXCR_CTRL_SET_ONEXEC``
+ - This aspect will be set after exec / set this aspect after exec
+
+ * - ``PR_PPC_DEXCR_CTRL_CLEAR_ONEXEC``
+ - This aspect will be clear after exec / clear this aspect after exec
+
+Note that
+
+* which is a plain value, not a bitmask. Aspects must be worked with individually.
+
+* ctrl is a bitmask. ``PR_PPC_GET_DEXCR`` returns both the current and onexec
+ configuration. For example, ``PR_PPC_GET_DEXCR`` may return
+ ``PR_PPC_DEXCR_CTRL_EDITABLE | PR_PPC_DEXCR_CTRL_SET |
+ PR_PPC_DEXCR_CTRL_CLEAR_ONEXEC``. This would indicate the aspect is currently
+ set, it will be cleared when you run exec, and you can change this with the
+ ``PR_PPC_SET_DEXCR`` prctl.
+
+* The set/clear terminology refers to setting/clearing the bit in the DEXCR.
+ For example::
+
+ prctl(PR_PPC_SET_DEXCR, PR_PPC_DEXCR_IBRTPD, PR_PPC_DEXCR_CTRL_SET, 0, 0);
+
+ will set the IBRTPD aspect bit in the DEXCR, causing indirect branch prediction
+ to be disabled.
+
+* The status returned by ``PR_PPC_GET_DEXCR`` represents what value the process
+ would like applied. It does not include any alternative overrides, such as if
+ the hypervisor is enforcing the aspect be set. To see the true DEXCR state
+ software should read the appropriate SPRs directly.
+
+* The aspect state when starting a process is copied from the parent's state on
+ :manpage:`fork(2)`. The state is reset to a fixed value on
+ :manpage:`execve(2)`. The PR_PPC_SET_DEXCR prctl() can control both of these
+ values.
+
+* The ``*_ONEXEC`` controls do not change the current process's DEXCR.
+
+Use ``PR_PPC_SET_DEXCR`` with one of ``PR_PPC_DEXCR_CTRL_SET`` or
+``PR_PPC_DEXCR_CTRL_CLEAR`` to edit a given aspect.
+
+Common error codes for both getting and setting the DEXCR are as follows:
+
+.. flat-table::
+ :header-rows: 1
+ :widths: 2 8
+
+ * - Error
+ - Meaning
+
+ * - ``EINVAL``
+ - The DEXCR is not supported by the kernel.
+
+ * - ``ENODEV``
+ - The aspect is not recognised by the kernel or not supported by the
+ hardware.
+
+``PR_PPC_SET_DEXCR`` may also report the following error codes:
+
+.. flat-table::
+ :header-rows: 1
+ :widths: 2 8
+
+ * - Error
+ - Meaning
+
+ * - ``EINVAL``
+ - The ctrl value contains unrecognised flags.
+
+ * - ``EINVAL``
+ - The ctrl value contains mutually conflicting flags (e.g.,
+ ``PR_PPC_DEXCR_CTRL_SET | PR_PPC_DEXCR_CTRL_CLEAR``)
+
+ * - ``EPERM``
+ - This aspect cannot be modified with prctl() (check for the
+ PR_PPC_DEXCR_CTRL_EDITABLE flag with PR_PPC_GET_DEXCR).
+
+ * - ``EPERM``
+ - The process does not have sufficient privilege to perform the operation.
+ For example, clearing NPHIE on exec is a privileged operation (a process
+ can still clear its own NPHIE aspect without privileges).
+
+This interface allows a process to control its own DEXCR aspects, and also set
+the initial DEXCR value for any children in its process tree (up to the next
+child to use an ``*_ONEXEC`` control). This allows fine-grained control over the
+default value of the DEXCR, for example allowing containers to run with different
+default values.
coredump and ptrace
diff --git a/Documentation/arch/powerpc/elf_hwcaps.rst b/Documentation/arch/powerpc/elf_hwcaps.rst
index 4c896cf..fce7489 100644
--- a/Documentation/arch/powerpc/elf_hwcaps.rst
+++ b/Documentation/arch/powerpc/elf_hwcaps.rst
@@ -91,6 +91,7 @@
PPC_FEATURE_HAS_4xxMAC
The processor is 40x or 44x family.
+ Unused in the kernel since 732b32daef80 ("powerpc: Remove core support for 40x")
PPC_FEATURE_UNIFIED_CACHE
The processor has a unified L1 cache for instructions and data, as
diff --git a/Documentation/arch/powerpc/firmware-assisted-dump.rst b/Documentation/arch/powerpc/firmware-assisted-dump.rst
index e363fc4..7e37aad 100644
--- a/Documentation/arch/powerpc/firmware-assisted-dump.rst
+++ b/Documentation/arch/powerpc/firmware-assisted-dump.rst
@@ -134,12 +134,12 @@
memory is held.
If there is no waiting dump data, then only the memory required to
-hold CPU state, HPTE region, boot memory dump, FADump header and
-elfcore header, is usually reserved at an offset greater than boot
-memory size (see Fig. 1). This area is *not* released: this region
-will be kept permanently reserved, so that it can act as a receptacle
-for a copy of the boot memory content in addition to CPU state and
-HPTE region, in the case a crash does occur.
+hold CPU state, HPTE region, boot memory dump, and FADump header is
+usually reserved at an offset greater than boot memory size (see Fig. 1).
+This area is *not* released: this region will be kept permanently
+reserved, so that it can act as a receptacle for a copy of the boot
+memory content in addition to CPU state and HPTE region, in the case
+a crash does occur.
Since this reserved memory area is used only after the system crash,
there is no point in blocking this significant chunk of memory from
@@ -153,22 +153,22 @@
o Memory Reservation during first kernel
- Low memory Top of memory
- 0 boot memory size |<--- Reserved dump area --->| |
- | | | Permanent Reservation | |
- V V | | V
- +-----------+-----/ /---+---+----+-------+-----+-----+----+--+
- | | |///|////| DUMP | HDR | ELF |////| |
- +-----------+-----/ /---+---+----+-------+-----+-----+----+--+
- | ^ ^ ^ ^ ^
- | | | | | |
- \ CPU HPTE / | |
- ------------------------------ | |
- Boot memory content gets transferred | |
- to reserved area by firmware at the | |
- time of crash. | |
- FADump Header |
- (meta area) |
+ Low memory Top of memory
+ 0 boot memory size |<------ Reserved dump area ----->| |
+ | | | Permanent Reservation | |
+ V V | | V
+ +-----------+-----/ /---+---+----+-----------+-------+----+-----+
+ | | |///|////| DUMP | HDR |////| |
+ +-----------+-----/ /---+---+----+-----------+-------+----+-----+
+ | ^ ^ ^ ^ ^
+ | | | | | |
+ \ CPU HPTE / | |
+ -------------------------------- | |
+ Boot memory content gets transferred | |
+ to reserved area by firmware at the | |
+ time of crash. | |
+ FADump Header |
+ (meta area) |
|
|
Metadata: This area holds a metadata structure whose
@@ -186,13 +186,20 @@
0 boot memory size |
| |<------------ Crash preserved area ------------>|
V V |<--- Reserved dump area --->| |
- +-----------+-----/ /---+---+----+-------+-----+-----+----+--+
- | | |///|////| DUMP | HDR | ELF |////| |
- +-----------+-----/ /---+---+----+-------+-----+-----+----+--+
- | |
- V V
- Used by second /proc/vmcore
- kernel to boot
+ +----+---+--+-----/ /---+---+----+-------+-----+-----+-------+
+ | |ELF| | |///|////| DUMP | HDR |/////| |
+ +----+---+--+-----/ /---+---+----+-------+-----+-----+-------+
+ | | | | | |
+ ----- ------------------------------ ---------------
+ \ | |
+ \ | |
+ \ | |
+ \ | ----------------------------
+ \ | /
+ \ | /
+ \ | /
+ /proc/vmcore
+
+---+
|///| -> Regions (CPU, HPTE & Metadata) marked like this in the above
@@ -200,6 +207,12 @@
does not have CPU & HPTE regions while Metadata region is
not supported on pSeries currently.
+ +---+
+ |ELF| -> elfcorehdr, it is created in second kernel after crash.
+ +---+
+
+ Note: Memory from 0 to the boot memory size is used by second kernel
+
Fig. 2
@@ -353,26 +366,6 @@
- Need to come up with the better approach to find out more
accurate boot memory size that is required for a kernel to
boot successfully when booted with restricted memory.
- - The FADump implementation introduces a FADump crash info structure
- in the scratch area before the ELF core header. The idea of introducing
- this structure is to pass some important crash info data to the second
- kernel which will help second kernel to populate ELF core header with
- correct data before it gets exported through /proc/vmcore. The current
- design implementation does not address a possibility of introducing
- additional fields (in future) to this structure without affecting
- compatibility. Need to come up with the better approach to address this.
-
- The possible approaches are:
-
- 1. Introduce version field for version tracking, bump up the version
- whenever a new field is added to the structure in future. The version
- field can be used to find out what fields are valid for the current
- version of the structure.
- 2. Reserve the area of predefined size (say PAGE_SIZE) for this
- structure and have unused area as reserved (initialized to zero)
- for future field additions.
-
- The advantage of approach 1 over 2 is we don't need to reserve extra space.
Author: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
diff --git a/Documentation/arch/powerpc/kvm-nested.rst b/Documentation/arch/powerpc/kvm-nested.rst
index 630602a..5defd13 100644
--- a/Documentation/arch/powerpc/kvm-nested.rst
+++ b/Documentation/arch/powerpc/kvm-nested.rst
@@ -546,7 +546,9 @@
+--------+-------+----+--------+----------------------------------+
| 0x1052 | 0x08 | RW | T | CTRL |
+--------+-------+----+--------+----------------------------------+
-| 0x1053-| | | | Reserved |
+| 0x1053 | 0x08 | RW | T | DPDES |
++--------+-------+----+--------+----------------------------------+
+| 0x1054-| | | | Reserved |
| 0x1FFF | | | | |
+--------+-------+----+--------+----------------------------------+
| 0x2000 | 0x04 | RW | T | CR |
diff --git a/Documentation/arch/riscv/cmodx.rst b/Documentation/arch/riscv/cmodx.rst
new file mode 100644
index 0000000..8c48bcf
--- /dev/null
+++ b/Documentation/arch/riscv/cmodx.rst
@@ -0,0 +1,98 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+==============================================================================
+Concurrent Modification and Execution of Instructions (CMODX) for RISC-V Linux
+==============================================================================
+
+CMODX is a programming technique where a program executes instructions that were
+modified by the program itself. Instruction storage and the instruction cache
+(icache) are not guaranteed to be synchronized on RISC-V hardware. Therefore, the
+program must enforce its own synchronization with the unprivileged fence.i
+instruction.
+
+However, the default Linux ABI prohibits the use of fence.i in userspace
+applications. At any point the scheduler may migrate a task onto a new hart. If
+migration occurs after the userspace synchronized the icache and instruction
+storage with fence.i, the icache on the new hart will no longer be clean. This
+is due to the behavior of fence.i only affecting the hart that it is called on.
+Thus, the hart that the task has been migrated to may not have synchronized
+instruction storage and icache.
+
+There are two ways to solve this problem: use the riscv_flush_icache() syscall,
+or use the ``PR_RISCV_SET_ICACHE_FLUSH_CTX`` prctl() and emit fence.i in
+userspace. The syscall performs a one-off icache flushing operation. The prctl
+changes the Linux ABI to allow userspace to emit icache flushing operations.
+
+As an aside, "deferred" icache flushes can sometimes be triggered in the kernel.
+At the time of writing, this only occurs during the riscv_flush_icache() syscall
+and when the kernel uses copy_to_user_page(). These deferred flushes happen only
+when the memory map being used by a hart changes. If the prctl() context caused
+an icache flush, this deferred icache flush will be skipped as it is redundant.
+Therefore, there will be no additional flush when using the riscv_flush_icache()
+syscall inside of the prctl() context.
+
+prctl() Interface
+---------------------
+
+Call prctl() with ``PR_RISCV_SET_ICACHE_FLUSH_CTX`` as the first argument. The
+remaining arguments will be delegated to the riscv_set_icache_flush_ctx
+function detailed below.
+
+.. kernel-doc:: arch/riscv/mm/cacheflush.c
+ :identifiers: riscv_set_icache_flush_ctx
+
+Example usage:
+
+The following files are meant to be compiled and linked with each other. The
+modify_instruction() function replaces an add with 0 with an add with one,
+causing the instruction sequence in get_value() to change from returning a zero
+to returning a one.
+
+cmodx.c::
+
+ #include <stdio.h>
+ #include <sys/prctl.h>
+
+ extern int get_value();
+ extern void modify_instruction();
+
+ int main()
+ {
+ int value = get_value();
+ printf("Value before cmodx: %d\n", value);
+
+ // Call prctl before first fence.i is called inside modify_instruction
+ prctl(PR_RISCV_SET_ICACHE_FLUSH_CTX, PR_RISCV_CTX_SW_FENCEI_ON, PR_RISCV_SCOPE_PER_PROCESS);
+ modify_instruction();
+ // Call prctl after final fence.i is called in process
+ prctl(PR_RISCV_SET_ICACHE_FLUSH_CTX, PR_RISCV_CTX_SW_FENCEI_OFF, PR_RISCV_SCOPE_PER_PROCESS);
+
+ value = get_value();
+ printf("Value after cmodx: %d\n", value);
+ return 0;
+ }
+
+cmodx.S::
+
+ .option norvc
+
+ .text
+ .global modify_instruction
+ modify_instruction:
+ lw a0, new_insn
+ lui a5,%hi(old_insn)
+ sw a0,%lo(old_insn)(a5)
+ fence.i
+ ret
+
+ .section modifiable, "awx"
+ .global get_value
+ get_value:
+ li a0, 0
+ old_insn:
+ addi a0, a0, 0
+ ret
+
+ .data
+ new_insn:
+ addi a0, a0, 1
diff --git a/Documentation/arch/riscv/hwprobe.rst b/Documentation/arch/riscv/hwprobe.rst
index b2bcc9e..85b7092 100644
--- a/Documentation/arch/riscv/hwprobe.rst
+++ b/Documentation/arch/riscv/hwprobe.rst
@@ -188,25 +188,89 @@
manual starting from commit 95cf1f9 ("Add changes requested by Ved
during signoff")
-* :c:macro:`RISCV_HWPROBE_KEY_CPUPERF_0`: A bitmask that contains performance
- information about the selected set of processors.
+ * :c:macro:`RISCV_HWPROBE_EXT_ZIHINTPAUSE`: The Zihintpause extension is
+ supported as defined in the RISC-V ISA manual starting from commit
+ d8ab5c78c207 ("Zihintpause is ratified").
- * :c:macro:`RISCV_HWPROBE_MISALIGNED_UNKNOWN`: The performance of misaligned
- accesses is unknown.
+ * :c:macro:`RISCV_HWPROBE_EXT_ZVE32X`: The Vector sub-extension Zve32x is
+ supported, as defined by version 1.0 of the RISC-V Vector extension manual.
- * :c:macro:`RISCV_HWPROBE_MISALIGNED_EMULATED`: Misaligned accesses are
- emulated via software, either in or below the kernel. These accesses are
- always extremely slow.
+ * :c:macro:`RISCV_HWPROBE_EXT_ZVE32F`: The Vector sub-extension Zve32f is
+ supported, as defined by version 1.0 of the RISC-V Vector extension manual.
- * :c:macro:`RISCV_HWPROBE_MISALIGNED_SLOW`: Misaligned accesses are slower
- than equivalent byte accesses. Misaligned accesses may be supported
- directly in hardware, or trapped and emulated by software.
+ * :c:macro:`RISCV_HWPROBE_EXT_ZVE64X`: The Vector sub-extension Zve64x is
+ supported, as defined by version 1.0 of the RISC-V Vector extension manual.
- * :c:macro:`RISCV_HWPROBE_MISALIGNED_FAST`: Misaligned accesses are faster
- than equivalent byte accesses.
+ * :c:macro:`RISCV_HWPROBE_EXT_ZVE64F`: The Vector sub-extension Zve64f is
+ supported, as defined by version 1.0 of the RISC-V Vector extension manual.
- * :c:macro:`RISCV_HWPROBE_MISALIGNED_UNSUPPORTED`: Misaligned accesses are
- not supported at all and will generate a misaligned address fault.
+ * :c:macro:`RISCV_HWPROBE_EXT_ZVE64D`: The Vector sub-extension Zve64d is
+ supported, as defined by version 1.0 of the RISC-V Vector extension manual.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZIMOP`: The Zimop May-Be-Operations extension is
+ supported as defined in the RISC-V ISA manual starting from commit
+ 58220614a5f ("Zimop is ratified/1.0").
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZCA`: The Zca extension part of Zc* standard
+ extensions for code size reduction, as ratified in commit 8be3419c1c0
+ ("Zcf doesn't exist on RV64 as it contains no instructions") of
+ riscv-code-size-reduction.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZCB`: The Zcb extension part of Zc* standard
+ extensions for code size reduction, as ratified in commit 8be3419c1c0
+ ("Zcf doesn't exist on RV64 as it contains no instructions") of
+ riscv-code-size-reduction.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZCD`: The Zcd extension part of Zc* standard
+ extensions for code size reduction, as ratified in commit 8be3419c1c0
+ ("Zcf doesn't exist on RV64 as it contains no instructions") of
+ riscv-code-size-reduction.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZCF`: The Zcf extension part of Zc* standard
+ extensions for code size reduction, as ratified in commit 8be3419c1c0
+ ("Zcf doesn't exist on RV64 as it contains no instructions") of
+ riscv-code-size-reduction.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZCMOP`: The Zcmop May-Be-Operations extension is
+ supported as defined in the RISC-V ISA manual starting from commit
+ c732a4f39a4 ("Zcmop is ratified/1.0").
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZAWRS`: The Zawrs extension is supported as
+ ratified in commit 98918c844281 ("Merge pull request #1217 from
+ riscv/zawrs") of riscv-isa-manual.
+
+* :c:macro:`RISCV_HWPROBE_KEY_CPUPERF_0`: Deprecated. Returns similar values to
+ :c:macro:`RISCV_HWPROBE_KEY_MISALIGNED_SCALAR_PERF`, but the key was
+ mistakenly classified as a bitmask rather than a value.
+
+* :c:macro:`RISCV_HWPROBE_KEY_MISALIGNED_SCALAR_PERF`: An enum value describing
+ the performance of misaligned scalar native word accesses on the selected set
+ of processors.
+
+ * :c:macro:`RISCV_HWPROBE_MISALIGNED_SCALAR_UNKNOWN`: The performance of
+ misaligned scalar accesses is unknown.
+
+ * :c:macro:`RISCV_HWPROBE_MISALIGNED_SCALAR_EMULATED`: Misaligned scalar
+ accesses are emulated via software, either in or below the kernel. These
+ accesses are always extremely slow.
+
+ * :c:macro:`RISCV_HWPROBE_MISALIGNED_SCALAR_SLOW`: Misaligned scalar native
+ word sized accesses are slower than the equivalent quantity of byte
+ accesses. Misaligned accesses may be supported directly in hardware, or
+ trapped and emulated by software.
+
+ * :c:macro:`RISCV_HWPROBE_MISALIGNED_SCALAR_FAST`: Misaligned scalar native
+ word sized accesses are faster than the equivalent quantity of byte
+ accesses.
+
+ * :c:macro:`RISCV_HWPROBE_MISALIGNED_SCALAR_UNSUPPORTED`: Misaligned scalar
+ accesses are not supported at all and will generate a misaligned address
+ fault.
* :c:macro:`RISCV_HWPROBE_KEY_ZICBOZ_BLOCK_SIZE`: An unsigned int which
represents the size of the Zicboz block in bytes.
+
+* :c:macro:`RISCV_HWPROBE_KEY_HIGHEST_VIRT_ADDRESS`: An unsigned long which
+ represent the highest userspace virtual address usable.
+
+* :c:macro:`RISCV_HWPROBE_KEY_TIME_CSR_FREQ`: Frequency (in Hz) of `time CSR`.
diff --git a/Documentation/arch/riscv/index.rst b/Documentation/arch/riscv/index.rst
index 4dab0cb..eecf347 100644
--- a/Documentation/arch/riscv/index.rst
+++ b/Documentation/arch/riscv/index.rst
@@ -13,6 +13,7 @@
patch-acceptance
uabi
vector
+ cmodx
features
diff --git a/Documentation/arch/riscv/uabi.rst b/Documentation/arch/riscv/uabi.rst
index 54d199d..2b420ba 100644
--- a/Documentation/arch/riscv/uabi.rst
+++ b/Documentation/arch/riscv/uabi.rst
@@ -65,4 +65,6 @@
Misaligned accesses
-------------------
-Misaligned accesses are supported in userspace, but they may perform poorly.
+Misaligned scalar accesses are supported in userspace, but they may perform
+poorly. Misaligned vector accesses are only supported if the Zicclsm extension
+is supported.
diff --git a/Documentation/arch/riscv/vm-layout.rst b/Documentation/arch/riscv/vm-layout.rst
index e476b43..077b968 100644
--- a/Documentation/arch/riscv/vm-layout.rst
+++ b/Documentation/arch/riscv/vm-layout.rst
@@ -47,11 +47,12 @@
| Kernel-space virtual memory, shared between all processes:
____________________________________________________________|___________________________________________________________
| | | |
- ffffffc6fea00000 | -228 GB | ffffffc6feffffff | 6 MB | fixmap
- ffffffc6ff000000 | -228 GB | ffffffc6ffffffff | 16 MB | PCI io
- ffffffc700000000 | -228 GB | ffffffc7ffffffff | 4 GB | vmemmap
- ffffffc800000000 | -224 GB | ffffffd7ffffffff | 64 GB | vmalloc/ioremap space
- ffffffd800000000 | -160 GB | fffffff6ffffffff | 124 GB | direct mapping of all physical memory
+ ffffffc4fea00000 | -236 GB | ffffffc4feffffff | 6 MB | fixmap
+ ffffffc4ff000000 | -236 GB | ffffffc4ffffffff | 16 MB | PCI io
+ ffffffc500000000 | -236 GB | ffffffc5ffffffff | 4 GB | vmemmap
+ ffffffc600000000 | -232 GB | ffffffd5ffffffff | 64 GB | vmalloc/ioremap space
+ ffffffd600000000 | -168 GB | fffffff5ffffffff | 128 GB | direct mapping of all physical memory
+ | | | |
fffffff700000000 | -36 GB | fffffffeffffffff | 32 GB | kasan
__________________|____________|__________________|_________|____________________________________________________________
|
diff --git a/Documentation/arch/s390/index.rst b/Documentation/arch/s390/index.rst
index 73c79bf..e75a6e5 100644
--- a/Documentation/arch/s390/index.rst
+++ b/Documentation/arch/s390/index.rst
@@ -8,6 +8,7 @@
cds
3270
driver-model
+ mm
monreader
qeth
s390dbf
diff --git a/Documentation/arch/s390/mm.rst b/Documentation/arch/s390/mm.rst
new file mode 100644
index 0000000..084adad
--- /dev/null
+++ b/Documentation/arch/s390/mm.rst
@@ -0,0 +1,111 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=================
+Memory Management
+=================
+
+Virtual memory layout
+=====================
+
+.. note::
+
+ - Some aspects of the virtual memory layout setup are not
+ clarified (number of page levels, alignment, DMA memory).
+
+ - Unused gaps in the virtual memory layout could be present
+ or not - depending on how partucular system is configured.
+ No page tables are created for the unused gaps.
+
+ - The virtual memory regions are tracked or untracked by KASAN
+ instrumentation, as well as the KASAN shadow memory itself is
+ created only when CONFIG_KASAN configuration option is enabled.
+
+::
+
+ =============================================================================
+ | Physical | Virtual | VM area description
+ =============================================================================
+ +- 0 --------------+- 0 --------------+
+ | | S390_lowcore | Low-address memory
+ | +- 8 KB -----------+
+ | | |
+ | | |
+ | | ... unused gap | KASAN untracked
+ | | |
+ +- AMODE31_START --+- AMODE31_START --+ .amode31 rand. phys/virt start
+ |.amode31 text/data|.amode31 text/data| KASAN untracked
+ +- AMODE31_END ----+- AMODE31_END ----+ .amode31 rand. phys/virt end (<2GB)
+ | | |
+ | | |
+ +- __kaslr_offset_phys | kernel rand. phys start
+ | | |
+ | kernel text/data | |
+ | | |
+ +------------------+ | kernel phys end
+ | | |
+ | | |
+ | | |
+ | | |
+ +- ident_map_size -+ |
+ | |
+ | ... unused gap | KASAN untracked
+ | |
+ +- __identity_base + identity mapping start (>= 2GB)
+ | |
+ | identity | phys == virt - __identity_base
+ | mapping | virt == phys + __identity_base
+ | |
+ | | KASAN tracked
+ | |
+ | |
+ | |
+ | |
+ | |
+ | |
+ | |
+ | |
+ | |
+ | |
+ | |
+ | |
+ | |
+ | |
+ | |
+ +---- vmemmap -----+ 'struct page' array start
+ | |
+ | virtually mapped |
+ | memory map | KASAN untracked
+ | |
+ +- __abs_lowcore --+
+ | |
+ | Absolute Lowcore | KASAN untracked
+ | |
+ +- __memcpy_real_area
+ | |
+ | Real Memory Copy| KASAN untracked
+ | |
+ +- VMALLOC_START --+ vmalloc area start
+ | | KASAN untracked or
+ | vmalloc area | KASAN shallowly populated in case
+ | | CONFIG_KASAN_VMALLOC=y
+ +- MODULES_VADDR --+ modules area start
+ | | KASAN allocated per module or
+ | modules area | KASAN shallowly populated in case
+ | | CONFIG_KASAN_VMALLOC=y
+ +- __kaslr_offset -+ kernel rand. virt start
+ | | KASAN tracked
+ | kernel text/data | phys == (kvirt - __kaslr_offset) +
+ | | __kaslr_offset_phys
+ +- kernel .bss end + kernel rand. virt end
+ | |
+ | ... unused gap | KASAN untracked
+ | |
+ +------------------+ UltraVisor Secure Storage limit
+ | |
+ | ... unused gap | KASAN untracked
+ | |
+ +KASAN_SHADOW_START+ KASAN shadow memory start
+ | |
+ | KASAN shadow | KASAN untracked
+ | |
+ +------------------+ ASCE limit
diff --git a/Documentation/arch/s390/vfio-ap.rst b/Documentation/arch/s390/vfio-ap.rst
index 929ee1c..ea744cb 100644
--- a/Documentation/arch/s390/vfio-ap.rst
+++ b/Documentation/arch/s390/vfio-ap.rst
@@ -380,6 +380,36 @@
control_domains:
A read-only file for displaying the control domain numbers assigned to the
vfio_ap mediated device.
+ ap_config:
+ A read/write file that, when written to, allows all three of the
+ vfio_ap mediated device's ap matrix masks to be replaced in one shot.
+ Three masks are given, one for adapters, one for domains, and one for
+ control domains. If the given state cannot be set then no changes are
+ made to the vfio-ap mediated device.
+
+ The format of the data written to ap_config is as follows:
+ {amask},{dmask},{cmask}\n
+
+ \n is a newline character.
+
+ amask, dmask, and cmask are masks identifying which adapters, domains,
+ and control domains should be assigned to the mediated device.
+
+ The format of a mask is as follows:
+ 0xNN..NN
+
+ Where NN..NN is 64 hexadecimal characters representing a 256-bit value.
+ The leftmost (highest order) bit represents adapter/domain 0.
+
+ For an example set of masks that represent your mdev's current
+ configuration, simply cat ap_config.
+
+ Setting an adapter or domain number greater than the maximum allowed for
+ the system will result in an error.
+
+ This attribute is intended to be used by automation. End users would be
+ better served using the respective assign/unassign attributes for
+ adapters, domains, and control domains.
* functions:
@@ -550,7 +580,7 @@
following Kconfig elements selected:
* IOMMU_SUPPORT
* S390
- * ZCRYPT
+ * AP
* VFIO
* KVM
diff --git a/Documentation/arch/sparc/oradax/dax-hv-api.txt b/Documentation/arch/sparc/oradax/dax-hv-api.txt
index 7ecd0bf..ef1a4c2 100644
--- a/Documentation/arch/sparc/oradax/dax-hv-api.txt
+++ b/Documentation/arch/sparc/oradax/dax-hv-api.txt
@@ -41,7 +41,7 @@
submissions until they succeed; waiting for an outstanding CCB to complete is not necessary, and would
not be a guarantee that a future submission would succeed.
- The availablility of DAX coprocessor command service is indicated by the presence of the DAX virtual
+ The availability of DAX coprocessor command service is indicated by the presence of the DAX virtual
device node in the guest MD (Section 8.24.17, “Database Analytics Accelerators (DAX) virtual-device
node”).
diff --git a/Documentation/arch/x86/amd-memory-encryption.rst b/Documentation/arch/x86/amd-memory-encryption.rst
index 414bc74..6df3264 100644
--- a/Documentation/arch/x86/amd-memory-encryption.rst
+++ b/Documentation/arch/x86/amd-memory-encryption.rst
@@ -130,4 +130,31 @@
More details in AMD64 APM[1] Vol 2: 15.34.10 SEV_STATUS MSR
-[1] https://www.amd.com/content/dam/amd/en/documents/processor-tech-docs/programmer-references/24593.pdf
+Secure VM Service Module (SVSM)
+===============================
+SNP provides a feature called Virtual Machine Privilege Levels (VMPL) which
+defines four privilege levels at which guest software can run. The most
+privileged level is 0 and numerically higher numbers have lesser privileges.
+More details in the AMD64 APM Vol 2, section "15.35.7 Virtual Machine
+Privilege Levels", docID: 24593.
+
+When using that feature, different services can run at different protection
+levels, apart from the guest OS but still within the secure SNP environment.
+They can provide services to the guest, like a vTPM, for example.
+
+When a guest is not running at VMPL0, it needs to communicate with the software
+running at VMPL0 to perform privileged operations or to interact with secure
+services. An example fur such a privileged operation is PVALIDATE which is
+*required* to be executed at VMPL0.
+
+In this scenario, the software running at VMPL0 is usually called a Secure VM
+Service Module (SVSM). Discovery of an SVSM and the API used to communicate
+with it is documented in "Secure VM Service Module for SEV-SNP Guests", docID:
+58019.
+
+(Latest versions of the above-mentioned documents can be found by using
+a search engine like duckduckgo.com and typing in:
+
+ site:amd.com "Secure VM Service Module for SEV-SNP Guests", docID: 58019
+
+for example.)
diff --git a/Documentation/arch/x86/cpuinfo.rst b/Documentation/arch/x86/cpuinfo.rst
index 8895784..6ef426a 100644
--- a/Documentation/arch/x86/cpuinfo.rst
+++ b/Documentation/arch/x86/cpuinfo.rst
@@ -112,7 +112,7 @@
setup_force_cpu_cap macros. For example, if bit 5 is set in MSR_IA32_CORE_CAPS,
the feature X86_FEATURE_SPLIT_LOCK_DETECT will be enabled and
"split_lock_detect" will be displayed. The flag "ring3mwait" will be
-displayed only when running on INTEL_FAM6_XEON_PHI_[KNL|KNM] processors.
+displayed only when running on INTEL_XEON_PHI_[KNL|KNM] processors.
d: Flags can represent purely software features.
------------------------------------------------
diff --git a/Documentation/arch/x86/exception-tables.rst b/Documentation/arch/x86/exception-tables.rst
index efde1fe..6e71773 100644
--- a/Documentation/arch/x86/exception-tables.rst
+++ b/Documentation/arch/x86/exception-tables.rst
@@ -297,7 +297,7 @@
c) execution continues at local label 2 (address of the
instruction immediately after the faulting user access).
-The steps 8a to 8c in a certain way emulate the faulting instruction.
+ The steps a to c above in a certain way emulate the faulting instruction.
That's it, mostly. If you look at our example, you might ask why
we set EAX to -EFAULT in the exception handler code. Well, the
diff --git a/Documentation/arch/x86/resctrl.rst b/Documentation/arch/x86/resctrl.rst
index 6c24558..a824affd 100644
--- a/Documentation/arch/x86/resctrl.rst
+++ b/Documentation/arch/x86/resctrl.rst
@@ -375,6 +375,10 @@
all tasks in the group. In CTRL_MON groups these files provide
the sum for all tasks in the CTRL_MON group and all tasks in
MON groups. Please see example section for more details on usage.
+ On systems with Sub-NUMA Cluster (SNC) enabled there are extra
+ directories for each node (located within the "mon_L3_XX" directory
+ for the L3 cache they occupy). These are named "mon_sub_L3_YY"
+ where "YY" is the node number.
"mon_hw_id":
Available only with debug option. The identifier used by hardware
@@ -446,6 +450,12 @@
max_threshold_occupancy is a user configurable value to determine the
occupancy at which an RMID can be freed.
+The mon_llc_occupancy_limbo tracepoint gives the precise occupancy in bytes
+for a subset of RMID that are not immediately available for allocation.
+This can't be relied on to produce output every second, it may be necessary
+to attempt to create an empty monitor group to force an update. Output may
+only be produced if creation of a control or monitor group fails.
+
Schemata files - general concepts
---------------------------------
Each line in the file describes one resource. The line starts with
@@ -478,6 +488,29 @@
each bit represents 5% of the capacity of the cache. You could partition
the cache into four equal parts with masks: 0x1f, 0x3e0, 0x7c00, 0xf8000.
+Notes on Sub-NUMA Cluster mode
+==============================
+When SNC mode is enabled, Linux may load balance tasks between Sub-NUMA
+nodes much more readily than between regular NUMA nodes since the CPUs
+on Sub-NUMA nodes share the same L3 cache and the system may report
+the NUMA distance between Sub-NUMA nodes with a lower value than used
+for regular NUMA nodes.
+
+The top-level monitoring files in each "mon_L3_XX" directory provide
+the sum of data across all SNC nodes sharing an L3 cache instance.
+Users who bind tasks to the CPUs of a specific Sub-NUMA node can read
+the "llc_occupancy", "mbm_total_bytes", and "mbm_local_bytes" in the
+"mon_sub_L3_YY" directories to get node local data.
+
+Memory bandwidth allocation is still performed at the L3 cache
+level. I.e. throttling controls are applied to all SNC nodes.
+
+L3 cache allocation bitmaps also apply to all SNC nodes. But note that
+the amount of L3 cache represented by each bit is divided by the number
+of SNC nodes per L3 cache. E.g. with a 100MB cache on a system with 10-bit
+allocation masks each bit normally represents 10MB. With SNC mode enabled
+with two SNC nodes per L3 cache, each bit only represents 5MB.
+
Memory bandwidth Allocation and monitoring
==========================================
diff --git a/Documentation/arch/x86/xstate.rst b/Documentation/arch/x86/xstate.rst
index ae5c69e..cec05ac 100644
--- a/Documentation/arch/x86/xstate.rst
+++ b/Documentation/arch/x86/xstate.rst
@@ -138,7 +138,7 @@
Dynamic features in signal frames
---------------------------------
-Dynamcally enabled features are not written to the signal frame upon signal
+Dynamically enabled features are not written to the signal frame upon signal
entry if the feature is in its initial configuration. This differs from
non-dynamic features which are always written regardless of their
configuration. Signal handlers can examine the XSAVE buffer's XSTATE_BV
diff --git a/Documentation/atomic_t.txt b/Documentation/atomic_t.txt
index d7adc6d..bee3b1b 100644
--- a/Documentation/atomic_t.txt
+++ b/Documentation/atomic_t.txt
@@ -171,14 +171,14 @@
- RMW operations that are conditional are unordered on FAILURE,
otherwise the above rules apply.
-Except of course when an operation has an explicit ordering like:
+Except of course when a successful operation has an explicit ordering like:
{}_relaxed: unordered
{}_acquire: the R of the RMW (or atomic_read) is an ACQUIRE
{}_release: the W of the RMW (or atomic_set) is a RELEASE
Where 'unordered' is against other memory locations. Address dependencies are
-not defeated.
+not defeated. Conditional operations are still unordered on FAILURE.
Fully ordered primitives are ordered against everything prior and everything
subsequent. Therefore a fully ordered primitive is like having an smp_mb()
diff --git a/Documentation/block/data-integrity.rst b/Documentation/block/data-integrity.rst
index 6a760c0..99905e8 100644
--- a/Documentation/block/data-integrity.rst
+++ b/Documentation/block/data-integrity.rst
@@ -153,18 +153,11 @@
4.2 Block Device
----------------
-Because the format of the protection data is tied to the physical
-disk, each block device has been extended with a block integrity
-profile (struct blk_integrity). This optional profile is registered
-with the block layer using blk_integrity_register().
-
-The profile contains callback functions for generating and verifying
-the protection data, as well as getting and setting application tags.
-The profile also contains a few constants to aid in completing,
-merging and splitting the integrity metadata.
+Block devices can set up the integrity information in the integrity
+sub-struture of the queue_limits structure.
Layered block devices will need to pick a profile that's appropriate
-for all subdevices. blk_integrity_compare() can help with that. DM
+for all subdevices. queue_limits_stack_integrity() can help with that. DM
and MD linear, RAID0 and RAID1 are currently supported. RAID4/5/6
will require extra work due to the application tag.
@@ -250,42 +243,6 @@
integrity upon completion.
-5.4 Registering A Block Device As Capable Of Exchanging Integrity Metadata
---------------------------------------------------------------------------
-
- To enable integrity exchange on a block device the gendisk must be
- registered as capable:
-
- `int blk_integrity_register(gendisk, blk_integrity);`
-
- The blk_integrity struct is a template and should contain the
- following::
-
- static struct blk_integrity my_profile = {
- .name = "STANDARDSBODY-TYPE-VARIANT-CSUM",
- .generate_fn = my_generate_fn,
- .verify_fn = my_verify_fn,
- .tuple_size = sizeof(struct my_tuple_size),
- .tag_size = <tag bytes per hw sector>,
- };
-
- 'name' is a text string which will be visible in sysfs. This is
- part of the userland API so chose it carefully and never change
- it. The format is standards body-type-variant.
- E.g. T10-DIF-TYPE1-IP or T13-EPP-0-CRC.
-
- 'generate_fn' generates appropriate integrity metadata (for WRITE).
-
- 'verify_fn' verifies that the data buffer matches the integrity
- metadata.
-
- 'tuple_size' must be set to match the size of the integrity
- metadata per sector. I.e. 8 for DIF and EPP.
-
- 'tag_size' must be set to identify how many bytes of tag space
- are available per hardware sector. For DIF this is either 2 or
- 0 depending on the value of the Control Mode Page ATO bit.
-
----------------------------------------------------------------------
2007-12-24 Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/Documentation/block/writeback_cache_control.rst b/Documentation/block/writeback_cache_control.rst
index b208488..c3707d0 100644
--- a/Documentation/block/writeback_cache_control.rst
+++ b/Documentation/block/writeback_cache_control.rst
@@ -46,41 +46,50 @@
the Forced Unit Access is implemented. The REQ_PREFLUSH and REQ_FUA flags
may both be set on a single bio.
-
-Implementation details for bio based block drivers
---------------------------------------------------------------
-
-These drivers will always see the REQ_PREFLUSH and REQ_FUA bits as they sit
-directly below the submit_bio interface. For remapping drivers the REQ_FUA
-bits need to be propagated to underlying devices, and a global flush needs
-to be implemented for bios with the REQ_PREFLUSH bit set. For real device
-drivers that do not have a volatile cache the REQ_PREFLUSH and REQ_FUA bits
-on non-empty bios can simply be ignored, and REQ_PREFLUSH requests without
-data can be completed successfully without doing any work. Drivers for
-devices with volatile caches need to implement the support for these
-flags themselves without any help from the block layer.
-
-
-Implementation details for request_fn based block drivers
----------------------------------------------------------
+Feature settings for block drivers
+----------------------------------
For devices that do not support volatile write caches there is no driver
support required, the block layer completes empty REQ_PREFLUSH requests before
entering the driver and strips off the REQ_PREFLUSH and REQ_FUA bits from
-requests that have a payload. For devices with volatile write caches the
-driver needs to tell the block layer that it supports flushing caches by
-doing::
+requests that have a payload.
- blk_queue_write_cache(sdkp->disk->queue, true, false);
+For devices with volatile write caches the driver needs to tell the block layer
+that it supports flushing caches by setting the
-and handle empty REQ_OP_FLUSH requests in its prep_fn/request_fn. Note that
-REQ_PREFLUSH requests with a payload are automatically turned into a sequence
-of an empty REQ_OP_FLUSH request followed by the actual write by the block
-layer. For devices that also support the FUA bit the block layer needs
-to be told to pass through the REQ_FUA bit using::
+ BLK_FEAT_WRITE_CACHE
- blk_queue_write_cache(sdkp->disk->queue, true, true);
+flag in the queue_limits feature field. For devices that also support the FUA
+bit the block layer needs to be told to pass on the REQ_FUA bit by also setting
+the
-and the driver must handle write requests that have the REQ_FUA bit set
-in prep_fn/request_fn. If the FUA bit is not natively supported the block
-layer turns it into an empty REQ_OP_FLUSH request after the actual write.
+ BLK_FEAT_FUA
+
+flag in the features field of the queue_limits structure.
+
+Implementation details for bio based block drivers
+--------------------------------------------------
+
+For bio based drivers the REQ_PREFLUSH and REQ_FUA bit are simply passed on to
+the driver if the driver sets the BLK_FEAT_WRITE_CACHE flag and the driver
+needs to handle them.
+
+*NOTE*: The REQ_FUA bit also gets passed on when the BLK_FEAT_FUA flags is
+_not_ set. Any bio based driver that sets BLK_FEAT_WRITE_CACHE also needs to
+handle REQ_FUA.
+
+For remapping drivers the REQ_FUA bits need to be propagated to underlying
+devices, and a global flush needs to be implemented for bios with the
+REQ_PREFLUSH bit set.
+
+Implementation details for blk-mq drivers
+-----------------------------------------
+
+When the BLK_FEAT_WRITE_CACHE flag is set, REQ_OP_WRITE | REQ_PREFLUSH requests
+with a payload are automatically turned into a sequence of a REQ_OP_FLUSH
+request followed by the actual write by the block layer.
+
+When the BLK_FEAT_FUA flags is set, the REQ_FUA bit is simply passed on for the
+REQ_OP_WRITE request, else a REQ_OP_FLUSH request is sent by the block layer
+after the completion of the write request for bio submissions with the REQ_FUA
+bit set.
diff --git a/Documentation/bpf/libbpf/libbpf_overview.rst b/Documentation/bpf/libbpf/libbpf_overview.rst
index f36a2d4..f4d22f0 100644
--- a/Documentation/bpf/libbpf/libbpf_overview.rst
+++ b/Documentation/bpf/libbpf/libbpf_overview.rst
@@ -219,6 +219,14 @@
space part of the BPF application easier. Note that the BPF program themselves
must still be written in plain C.
+libbpf logging
+==============
+
+By default, libbpf logs informational and warning messages to stderr. The
+verbosity of these messages can be controlled by setting the environment
+variable LIBBPF_LOG_LEVEL to either warn, info, or debug. A custom log
+callback can be set using ``libbpf_set_print()``.
+
Additional Documentation
========================
diff --git a/Documentation/bpf/standardization/abi.rst b/Documentation/bpf/standardization/abi.rst
index 0c2e10e..4151413 100644
--- a/Documentation/bpf/standardization/abi.rst
+++ b/Documentation/bpf/standardization/abi.rst
@@ -23,3 +23,6 @@
R0 - R5 are scratch registers and BPF programs needs to spill/fill them if
necessary across calls.
+
+The BPF program needs to store the return value into register R0 before doing an
+``EXIT``.
diff --git a/Documentation/bpf/standardization/instruction-set.rst b/Documentation/bpf/standardization/instruction-set.rst
index a5ab00a..ab820d5 100644
--- a/Documentation/bpf/standardization/instruction-set.rst
+++ b/Documentation/bpf/standardization/instruction-set.rst
@@ -5,11 +5,29 @@
BPF Instruction Set Architecture (ISA)
======================================
-This document specifies the BPF instruction set architecture (ISA).
+eBPF, also commonly
+referred to as BPF, is a technology with origins in the Linux kernel
+that can run untrusted programs in a privileged context such as an
+operating system kernel. This document specifies the BPF instruction
+set architecture (ISA).
+
+As a historical note, BPF originally stood for Berkeley Packet Filter,
+but now that it can do so much more than packet filtering, the acronym
+no longer makes sense. BPF is now considered a standalone term that
+does not stand for anything. The original BPF is sometimes referred to
+as cBPF (classic BPF) to distinguish it from the now widely deployed
+eBPF (extended BPF).
Documentation conventions
=========================
+The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
+"SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
+"OPTIONAL" in this document are to be interpreted as described in
+BCP 14 `<https://www.rfc-editor.org/info/rfc2119>`_
+`<https://www.rfc-editor.org/info/rfc8174>`_
+when, and only when, they appear in all capitals, as shown here.
+
For brevity and consistency, this document refers to families
of types using a shorthand syntax and refers to several expository,
mnemonic functions when describing the semantics of instructions.
@@ -21,7 +39,7 @@
This document refers to integer types with the notation `SN` to specify
a type's signedness (`S`) and bit width (`N`), respectively.
-.. table:: Meaning of signedness notation.
+.. table:: Meaning of signedness notation
==== =========
S Meaning
@@ -30,7 +48,7 @@
s signed
==== =========
-.. table:: Meaning of bit-width notation.
+.. table:: Meaning of bit-width notation
===== =========
N Bit width
@@ -43,29 +61,23 @@
===== =========
For example, `u32` is a type whose valid values are all the 32-bit unsigned
-numbers and `s16` is a types whose valid values are all the 16-bit signed
+numbers and `s16` is a type whose valid values are all the 16-bit signed
numbers.
Functions
---------
-* htobe16: Takes an unsigned 16-bit number in host-endian format and
- returns the equivalent number as an unsigned 16-bit number in big-endian
- format.
-* htobe32: Takes an unsigned 32-bit number in host-endian format and
- returns the equivalent number as an unsigned 32-bit number in big-endian
- format.
-* htobe64: Takes an unsigned 64-bit number in host-endian format and
- returns the equivalent number as an unsigned 64-bit number in big-endian
- format.
-* htole16: Takes an unsigned 16-bit number in host-endian format and
- returns the equivalent number as an unsigned 16-bit number in little-endian
- format.
-* htole32: Takes an unsigned 32-bit number in host-endian format and
- returns the equivalent number as an unsigned 32-bit number in little-endian
- format.
-* htole64: Takes an unsigned 64-bit number in host-endian format and
- returns the equivalent number as an unsigned 64-bit number in little-endian
- format.
+
+The following byteswap functions are direction-agnostic. That is,
+the same function is used for conversion in either direction discussed
+below.
+
+* be16: Takes an unsigned 16-bit number and converts it between
+ host byte order and big-endian
+ (`IEN137 <https://www.rfc-editor.org/ien/ien137.txt>`_) byte order.
+* be32: Takes an unsigned 32-bit number and converts it between
+ host byte order and big-endian byte order.
+* be64: Takes an unsigned 64-bit number and converts it between
+ host byte order and big-endian byte order.
* bswap16: Takes an unsigned 16-bit number in either big- or little-endian
format and returns the equivalent number with the same bit width but
opposite endianness.
@@ -75,7 +87,12 @@
* bswap64: Takes an unsigned 64-bit number in either big- or little-endian
format and returns the equivalent number with the same bit width but
opposite endianness.
-
+* le16: Takes an unsigned 16-bit number and converts it between
+ host byte order and little-endian byte order.
+* le32: Takes an unsigned 32-bit number and converts it between
+ host byte order and little-endian byte order.
+* le64: Takes an unsigned 64-bit number and converts it between
+ host byte order and little-endian byte order.
Definitions
-----------
@@ -102,13 +119,13 @@
An implementation does not need to support all instructions specified in this
document (e.g., deprecated instructions). Instead, a number of conformance
-groups are specified. An implementation must support the base32 conformance
-group and may support additional conformance groups, where supporting a
-conformance group means it must support all instructions in that conformance
+groups are specified. An implementation MUST support the base32 conformance
+group and MAY support additional conformance groups, where supporting a
+conformance group means it MUST support all instructions in that conformance
group.
The use of named conformance groups enables interoperability between a runtime
-that executes instructions, and tools as such compilers that generate
+that executes instructions, and tools such as compilers that generate
instructions for the runtime. Thus, capability discovery in terms of
conformance groups might be done manually by users or automatically by tools.
@@ -181,10 +198,13 @@
(`64-bit immediate instructions`_ reuse this field for other purposes)
**dst_reg**
- destination register number (0-10)
+ destination register number (0-10), unless otherwise specified
+ (future instructions might reuse this field for other purposes)
**offset**
- signed integer offset used with pointer arithmetic
+ signed integer offset used with pointer arithmetic, except where
+ otherwise specified (some arithmetic instructions reuse this field
+ for other purposes)
**imm**
signed integer immediate value
@@ -202,7 +222,7 @@
07 1 0 00 00 11 22 33 44 r1 += 0x11223344 // big
Note that most instructions do not use all of the fields.
-Unused fields shall be cleared to zero.
+Unused fields SHALL be cleared to zero.
Wide instruction encoding
--------------------------
@@ -228,10 +248,12 @@
operation to perform, encoded as explained above
**regs**
- The source and destination register numbers, encoded as explained above
+ The source and destination register numbers (unless otherwise
+ specified), encoded as explained above
**offset**
- signed integer offset used with pointer arithmetic
+ signed integer offset used with pointer arithmetic, unless
+ otherwise specified
**imm**
signed integer immediate value
@@ -247,18 +269,20 @@
The three least significant bits of the 'opcode' field store the instruction class:
-===== ===== =============================== ===================================
-class value description reference
-===== ===== =============================== ===================================
-LD 0x0 non-standard load operations `Load and store instructions`_
-LDX 0x1 load into register operations `Load and store instructions`_
-ST 0x2 store from immediate operations `Load and store instructions`_
-STX 0x3 store from register operations `Load and store instructions`_
-ALU 0x4 32-bit arithmetic operations `Arithmetic and jump instructions`_
-JMP 0x5 64-bit jump operations `Arithmetic and jump instructions`_
-JMP32 0x6 32-bit jump operations `Arithmetic and jump instructions`_
-ALU64 0x7 64-bit arithmetic operations `Arithmetic and jump instructions`_
-===== ===== =============================== ===================================
+.. table:: Instruction class
+
+ ===== ===== =============================== ===================================
+ class value description reference
+ ===== ===== =============================== ===================================
+ LD 0x0 non-standard load operations `Load and store instructions`_
+ LDX 0x1 load into register operations `Load and store instructions`_
+ ST 0x2 store from immediate operations `Load and store instructions`_
+ STX 0x3 store from register operations `Load and store instructions`_
+ ALU 0x4 32-bit arithmetic operations `Arithmetic and jump instructions`_
+ JMP 0x5 64-bit jump operations `Arithmetic and jump instructions`_
+ JMP32 0x6 32-bit jump operations `Arithmetic and jump instructions`_
+ ALU64 0x7 64-bit arithmetic operations `Arithmetic and jump instructions`_
+ ===== ===== =============================== ===================================
Arithmetic and jump instructions
================================
@@ -276,12 +300,14 @@
**s (source)**
the source operand location, which unless otherwise specified is one of:
- ====== ===== ==============================================
- source value description
- ====== ===== ==============================================
- K 0 use 32-bit 'imm' value as source operand
- X 1 use 'src_reg' register value as source operand
- ====== ===== ==============================================
+ .. table:: Source operand location
+
+ ====== ===== ==============================================
+ source value description
+ ====== ===== ==============================================
+ K 0 use 32-bit 'imm' value as source operand
+ X 1 use 'src_reg' register value as source operand
+ ====== ===== ==============================================
**instruction class**
the instruction class (see `Instruction classes`_)
@@ -292,30 +318,33 @@
``ALU`` uses 32-bit wide operands while ``ALU64`` uses 64-bit wide operands for
otherwise identical operations. ``ALU64`` instructions belong to the
base64 conformance group unless noted otherwise.
-The 'code' field encodes the operation as below, where 'src' and 'dst' refer
-to the values of the source and destination registers, respectively.
+The 'code' field encodes the operation as below, where 'src' refers to the
+the source operand and 'dst' refers to the value of the destination
+register.
-===== ===== ======= ==========================================================
-name code offset description
-===== ===== ======= ==========================================================
-ADD 0x0 0 dst += src
-SUB 0x1 0 dst -= src
-MUL 0x2 0 dst \*= src
-DIV 0x3 0 dst = (src != 0) ? (dst / src) : 0
-SDIV 0x3 1 dst = (src != 0) ? (dst s/ src) : 0
-OR 0x4 0 dst \|= src
-AND 0x5 0 dst &= src
-LSH 0x6 0 dst <<= (src & mask)
-RSH 0x7 0 dst >>= (src & mask)
-NEG 0x8 0 dst = -dst
-MOD 0x9 0 dst = (src != 0) ? (dst % src) : dst
-SMOD 0x9 1 dst = (src != 0) ? (dst s% src) : dst
-XOR 0xa 0 dst ^= src
-MOV 0xb 0 dst = src
-MOVSX 0xb 8/16/32 dst = (s8,s16,s32)src
-ARSH 0xc 0 :term:`sign extending<Sign Extend>` dst >>= (src & mask)
-END 0xd 0 byte swap operations (see `Byte swap instructions`_ below)
-===== ===== ======= ==========================================================
+.. table:: Arithmetic instructions
+
+ ===== ===== ======= ==========================================================
+ name code offset description
+ ===== ===== ======= ==========================================================
+ ADD 0x0 0 dst += src
+ SUB 0x1 0 dst -= src
+ MUL 0x2 0 dst \*= src
+ DIV 0x3 0 dst = (src != 0) ? (dst / src) : 0
+ SDIV 0x3 1 dst = (src != 0) ? (dst s/ src) : 0
+ OR 0x4 0 dst \|= src
+ AND 0x5 0 dst &= src
+ LSH 0x6 0 dst <<= (src & mask)
+ RSH 0x7 0 dst >>= (src & mask)
+ NEG 0x8 0 dst = -dst
+ MOD 0x9 0 dst = (src != 0) ? (dst % src) : dst
+ SMOD 0x9 1 dst = (src != 0) ? (dst s% src) : dst
+ XOR 0xa 0 dst ^= src
+ MOV 0xb 0 dst = src
+ MOVSX 0xb 8/16/32 dst = (s8,s16,s32)src
+ ARSH 0xc 0 :term:`sign extending<Sign Extend>` dst >>= (src & mask)
+ END 0xd 0 byte swap operations (see `Byte swap instructions`_ below)
+ ===== ===== ======= ==========================================================
Underflow and overflow are allowed during arithmetic operations, meaning
the 64-bit or 32-bit value will wrap. If BPF program execution would
@@ -342,8 +371,8 @@
dst = dst ^ imm
-Note that most instructions have instruction offset of 0. Only three instructions
-(``SDIV``, ``SMOD``, ``MOVSX``) have a non-zero offset.
+Note that most arithmetic instructions have 'offset' set to 0. Only three instructions
+(``SDIV``, ``SMOD``, ``MOVSX``) have a non-zero 'offset'.
Division, multiplication, and modulo operations for ``ALU`` are part
of the "divmul32" conformance group, and division, multiplication, and
@@ -364,18 +393,31 @@
Note that there are varying definitions of the signed modulo operation
when the dividend or divisor are negative, where implementations often
vary by language such that Python, Ruby, etc. differ from C, Go, Java,
-etc. This specification requires that signed modulo use truncated division
-(where -13 % 3 == -1) as implemented in C, Go, etc.:
+etc. This specification requires that signed modulo MUST use truncated division
+(where -13 % 3 == -1) as implemented in C, Go, etc.::
a % n = a - n * trunc(a / n)
The ``MOVSX`` instruction does a move operation with sign extension.
-``{MOVSX, X, ALU}`` :term:`sign extends<Sign Extend>` 8-bit and 16-bit operands into 32
-bit operands, and zeroes the remaining upper 32 bits.
+``{MOVSX, X, ALU}`` :term:`sign extends<Sign Extend>` 8-bit and 16-bit operands into
+32-bit operands, and zeroes the remaining upper 32 bits.
``{MOVSX, X, ALU64}`` :term:`sign extends<Sign Extend>` 8-bit, 16-bit, and 32-bit
-operands into 64 bit operands. Unlike other arithmetic instructions,
+operands into 64-bit operands. Unlike other arithmetic instructions,
``MOVSX`` is only defined for register source operands (``X``).
+``{MOV, K, ALU64}`` means::
+
+ dst = (s64)imm
+
+``{MOV, X, ALU}`` means::
+
+ dst = (u32)src
+
+``{MOVSX, X, ALU}`` with 'offset' 8 means::
+
+ dst = (u32)(s32)(s8)src
+
+
The ``NEG`` instruction is only defined when the source bit is clear
(``K``).
@@ -394,15 +436,17 @@
For ``ALU``, the 1-bit source operand field in the opcode is used to
select what byte order the operation converts from or to. For
``ALU64``, the 1-bit source operand field in the opcode is reserved
-and must be set to 0.
+and MUST be set to 0.
-===== ======== ===== =================================================
-class source value description
-===== ======== ===== =================================================
-ALU TO_LE 0 convert between host byte order and little endian
-ALU TO_BE 1 convert between host byte order and big endian
-ALU64 Reserved 0 do byte swap unconditionally
-===== ======== ===== =================================================
+.. table:: Byte swap instructions
+
+ ===== ======== ===== =================================================
+ class source value description
+ ===== ======== ===== =================================================
+ ALU LE 0 convert between host byte order and little endian
+ ALU BE 1 convert between host byte order and big endian
+ ALU64 Reserved 0 do byte swap unconditionally
+ ===== ======== ===== =================================================
The 'imm' field encodes the width of the swap operations. The following widths
are supported: 16, 32 and 64. Width 64 operations belong to the base64
@@ -411,19 +455,19 @@
Examples:
-``{END, TO_LE, ALU}`` with imm = 16/32/64 means::
+``{END, LE, ALU}`` with 'imm' = 16/32/64 means::
- dst = htole16(dst)
- dst = htole32(dst)
- dst = htole64(dst)
+ dst = le16(dst)
+ dst = le32(dst)
+ dst = le64(dst)
-``{END, TO_BE, ALU}`` with imm = 16/32/64 means::
+``{END, BE, ALU}`` with 'imm' = 16/32/64 means::
- dst = htobe16(dst)
- dst = htobe32(dst)
- dst = htobe64(dst)
+ dst = be16(dst)
+ dst = be32(dst)
+ dst = be64(dst)
-``{END, TO_LE, ALU64}`` with imm = 16/32/64 means::
+``{END, TO, ALU64}`` with 'imm' = 16/32/64 means::
dst = bswap16(dst)
dst = bswap32(dst)
@@ -438,30 +482,35 @@
group unless otherwise specified.
The 'code' field encodes the operation as below:
-======== ===== ======= =============================== ===================================================
-code value src_reg description notes
-======== ===== ======= =============================== ===================================================
-JA 0x0 0x0 PC += offset {JA, K, JMP} only
-JA 0x0 0x0 PC += imm {JA, K, JMP32} only
-JEQ 0x1 any PC += offset if dst == src
-JGT 0x2 any PC += offset if dst > src unsigned
-JGE 0x3 any PC += offset if dst >= src unsigned
-JSET 0x4 any PC += offset if dst & src
-JNE 0x5 any PC += offset if dst != src
-JSGT 0x6 any PC += offset if dst > src signed
-JSGE 0x7 any PC += offset if dst >= src signed
-CALL 0x8 0x0 call helper function by address {CALL, K, JMP} only, see `Helper functions`_
-CALL 0x8 0x1 call PC += imm {CALL, K, JMP} only, see `Program-local functions`_
-CALL 0x8 0x2 call helper function by BTF ID {CALL, K, JMP} only, see `Helper functions`_
-EXIT 0x9 0x0 return {CALL, K, JMP} only
-JLT 0xa any PC += offset if dst < src unsigned
-JLE 0xb any PC += offset if dst <= src unsigned
-JSLT 0xc any PC += offset if dst < src signed
-JSLE 0xd any PC += offset if dst <= src signed
-======== ===== ======= =============================== ===================================================
+.. table:: Jump instructions
-The BPF program needs to store the return value into register R0 before doing an
-``EXIT``.
+ ======== ===== ======= ================================= ===================================================
+ code value src_reg description notes
+ ======== ===== ======= ================================= ===================================================
+ JA 0x0 0x0 PC += offset {JA, K, JMP} only
+ JA 0x0 0x0 PC += imm {JA, K, JMP32} only
+ JEQ 0x1 any PC += offset if dst == src
+ JGT 0x2 any PC += offset if dst > src unsigned
+ JGE 0x3 any PC += offset if dst >= src unsigned
+ JSET 0x4 any PC += offset if dst & src
+ JNE 0x5 any PC += offset if dst != src
+ JSGT 0x6 any PC += offset if dst > src signed
+ JSGE 0x7 any PC += offset if dst >= src signed
+ CALL 0x8 0x0 call helper function by static ID {CALL, K, JMP} only, see `Helper functions`_
+ CALL 0x8 0x1 call PC += imm {CALL, K, JMP} only, see `Program-local functions`_
+ CALL 0x8 0x2 call helper function by BTF ID {CALL, K, JMP} only, see `Helper functions`_
+ EXIT 0x9 0x0 return {CALL, K, JMP} only
+ JLT 0xa any PC += offset if dst < src unsigned
+ JLE 0xb any PC += offset if dst <= src unsigned
+ JSLT 0xc any PC += offset if dst < src signed
+ JSLE 0xd any PC += offset if dst <= src signed
+ ======== ===== ======= ================================= ===================================================
+
+where 'PC' denotes the program counter, and the offset to increment by
+is in units of 64-bit instructions relative to the instruction following
+the jump instruction. Thus 'PC += 1' skips execution of the next
+instruction if it's a basic instruction or results in undefined behavior
+if the next instruction is a 128-bit wide instruction.
Example:
@@ -471,11 +520,15 @@
where 's>=' indicates a signed '>=' comparison.
+``{JLE, K, JMP}`` means::
+
+ if dst <= (u64)(s64)imm goto +offset
+
``{JA, K, JMP32}`` means::
gotol +imm
-where 'imm' means the branch offset comes from insn 'imm' field.
+where 'imm' means the branch offset comes from the 'imm' field.
Note that there are two flavors of ``JA`` instructions. The
``JMP`` class permits a 16-bit jump offset specified by the 'offset'
@@ -493,26 +546,32 @@
Helper functions are a concept whereby BPF programs can call into a
set of function calls exposed by the underlying platform.
-Historically, each helper function was identified by an address
-encoded in the imm field. The available helper functions may differ
-for each program type, but address values are unique across all program types.
+Historically, each helper function was identified by a static ID
+encoded in the 'imm' field. Further documentation of helper functions
+is outside the scope of this document and standardization is left for
+future work, but use is widely deployed and more information can be
+found in platform-specific documentation (e.g., Linux kernel documentation).
Platforms that support the BPF Type Format (BTF) support identifying
-a helper function by a BTF ID encoded in the imm field, where the BTF ID
-identifies the helper name and type.
+a helper function by a BTF ID encoded in the 'imm' field, where the BTF ID
+identifies the helper name and type. Further documentation of BTF
+is outside the scope of this document and standardization is left for
+future work, but use is widely deployed and more information can be
+found in platform-specific documentation (e.g., Linux kernel documentation).
Program-local functions
~~~~~~~~~~~~~~~~~~~~~~~
Program-local functions are functions exposed by the same BPF program as the
-caller, and are referenced by offset from the call instruction, similar to
-``JA``. The offset is encoded in the imm field of the call instruction.
-A ``EXIT`` within the program-local function will return to the caller.
+caller, and are referenced by offset from the instruction following the call
+instruction, similar to ``JA``. The offset is encoded in the 'imm' field of
+the call instruction. An ``EXIT`` within the program-local function will
+return to the caller.
Load and store instructions
===========================
For load and store instructions (``LD``, ``LDX``, ``ST``, and ``STX``), the
-8-bit 'opcode' field is divided as::
+8-bit 'opcode' field is divided as follows::
+-+-+-+-+-+-+-+-+
|mode |sz |class|
@@ -521,6 +580,8 @@
**mode**
The mode modifier is one of:
+ .. table:: Mode modifier
+
============= ===== ==================================== =============
mode modifier value description reference
============= ===== ==================================== =============
@@ -535,6 +596,8 @@
**sz (size)**
The size modifier is one of:
+ .. table:: Size modifier
+
==== ===== =====================
size value description
==== ===== =====================
@@ -580,7 +643,7 @@
dst = *(signed size *) (src + offset)
-Where size is one of: ``B``, ``H``, or ``W``, and
+Where '<size>' is one of: ``B``, ``H``, or ``W``, and
'signed size' is one of: s8, s16, or s32.
Atomic operations
@@ -603,14 +666,16 @@
Simple atomic operation use a subset of the values defined to encode
arithmetic operations in the 'imm' field to encode the atomic operation:
-======== ===== ===========
-imm value description
-======== ===== ===========
-ADD 0x00 atomic add
-OR 0x40 atomic or
-AND 0x50 atomic and
-XOR 0xa0 atomic xor
-======== ===== ===========
+.. table:: Simple atomic operations
+
+ ======== ===== ===========
+ imm value description
+ ======== ===== ===========
+ ADD 0x00 atomic add
+ OR 0x40 atomic or
+ AND 0x50 atomic and
+ XOR 0xa0 atomic xor
+ ======== ===== ===========
``{ATOMIC, W, STX}`` with 'imm' = ADD means::
@@ -624,13 +689,15 @@
In addition to the simple atomic operations, there also is a modifier and
two complex atomic operations:
-=========== ================ ===========================
-imm value description
-=========== ================ ===========================
-FETCH 0x01 modifier: return old value
-XCHG 0xe0 | FETCH atomic exchange
-CMPXCHG 0xf0 | FETCH atomic compare and exchange
-=========== ================ ===========================
+.. table:: Complex atomic operations
+
+ =========== ================ ===========================
+ imm value description
+ =========== ================ ===========================
+ FETCH 0x01 modifier: return old value
+ XCHG 0xe0 | FETCH atomic exchange
+ CMPXCHG 0xf0 | FETCH atomic compare and exchange
+ =========== ================ ===========================
The ``FETCH`` modifier is optional for simple atomic operations, and
always set for the complex atomic operations. If the ``FETCH`` flag
@@ -657,17 +724,19 @@
with opcode subtypes in the 'src_reg' field, using new terms such as "map"
defined further below:
-======= ========================================= =========== ==============
-src_reg pseudocode imm type dst type
-======= ========================================= =========== ==============
-0x0 dst = (next_imm << 32) | imm integer integer
-0x1 dst = map_by_fd(imm) map fd map
-0x2 dst = map_val(map_by_fd(imm)) + next_imm map fd data pointer
-0x3 dst = var_addr(imm) variable id data pointer
-0x4 dst = code_addr(imm) integer code pointer
-0x5 dst = map_by_idx(imm) map index map
-0x6 dst = map_val(map_by_idx(imm)) + next_imm map index data pointer
-======= ========================================= =========== ==============
+.. table:: 64-bit immediate instructions
+
+ ======= ========================================= =========== ==============
+ src_reg pseudocode imm type dst type
+ ======= ========================================= =========== ==============
+ 0x0 dst = (next_imm << 32) | imm integer integer
+ 0x1 dst = map_by_fd(imm) map fd map
+ 0x2 dst = map_val(map_by_fd(imm)) + next_imm map fd data address
+ 0x3 dst = var_addr(imm) variable id data address
+ 0x4 dst = code_addr(imm) integer code address
+ 0x5 dst = map_by_idx(imm) map index map
+ 0x6 dst = map_val(map_by_idx(imm)) + next_imm map index data address
+ ======= ========================================= =========== ==============
where
@@ -709,5 +778,5 @@
class of ``LD``, a size modifier of ``W``, ``H``, or ``B``, and a
mode modifier of ``ABS`` or ``IND``. The 'dst_reg' and 'offset' fields were
set to zero, and 'src_reg' was set to zero for ``ABS``. However, these
-instructions are deprecated and should no longer be used. All legacy packet
+instructions are deprecated and SHOULD no longer be used. All legacy packet
access instructions belong to the "packet" conformance group.
diff --git a/Documentation/cdrom/cdrom-standard.rst b/Documentation/cdrom/cdrom-standard.rst
index 7964fe1..6c1303cf 100644
--- a/Documentation/cdrom/cdrom-standard.rst
+++ b/Documentation/cdrom/cdrom-standard.rst
@@ -217,7 +217,7 @@
int (*media_changed)(struct cdrom_device_info *, int);
int (*tray_move)(struct cdrom_device_info *, int);
int (*lock_door)(struct cdrom_device_info *, int);
- int (*select_speed)(struct cdrom_device_info *, int);
+ int (*select_speed)(struct cdrom_device_info *, unsigned long);
int (*get_last_session) (struct cdrom_device_info *,
struct cdrom_multisession *);
int (*get_mcn)(struct cdrom_device_info *, struct cdrom_mcn *);
@@ -396,7 +396,7 @@
::
- int select_speed(struct cdrom_device_info *cdi, int speed)
+ int select_speed(struct cdrom_device_info *cdi, unsigned long speed)
Some CD-ROM drives are capable of changing their head-speed. There
are several reasons for changing the speed of a CD-ROM drive. Badly
diff --git a/Documentation/conf.py b/Documentation/conf.py
index d148f3e..0c2205d 100644
--- a/Documentation/conf.py
+++ b/Documentation/conf.py
@@ -75,6 +75,8 @@
"__rcu",
"__user",
"__force",
+ "__counted_by_le",
+ "__counted_by_be",
# include/linux/compiler_attributes.h:
"__alias",
diff --git a/Documentation/core-api/dma-api-howto.rst b/Documentation/core-api/dma-api-howto.rst
index e8a55f9..0bf31b6 100644
--- a/Documentation/core-api/dma-api-howto.rst
+++ b/Documentation/core-api/dma-api-howto.rst
@@ -203,13 +203,33 @@
that performance is bad or that the device is not even detected, you can ask
them for the kernel messages to find out exactly why.
-The standard 64-bit addressing device would do something like this::
+The 24-bit addressing device would do something like this::
- if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64))) {
+ if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(24))) {
dev_warn(dev, "mydev: No suitable DMA available\n");
goto ignore_this_device;
}
+The standard 64-bit addressing device would do something like this::
+
+ dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64))
+
+dma_set_mask_and_coherent() never return fail when DMA_BIT_MASK(64). Typical
+error code like::
+
+ /* Wrong code */
+ if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)))
+ dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32))
+
+dma_set_mask_and_coherent() will never return failure when bigger than 32.
+So typical code like::
+
+ /* Recommended code */
+ if (support_64bit)
+ dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64));
+ else
+ dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32));
+
If the device only supports 32-bit addressing for descriptors in the
coherent allocations, but supports full 64-bits for streaming mappings
it would look like this::
diff --git a/Documentation/core-api/entry.rst b/Documentation/core-api/entry.rst
index e12f22a..a15f9b1 100644
--- a/Documentation/core-api/entry.rst
+++ b/Documentation/core-api/entry.rst
@@ -18,7 +18,7 @@
Non-instrumentable code - noinstr
---------------------------------
-Most instrumentation facilities depend on RCU, so intrumentation is prohibited
+Most instrumentation facilities depend on RCU, so instrumentation is prohibited
for entry code before RCU starts watching and exit code after RCU stops
watching. In addition, many architectures must save and restore register state,
which means that (for example) a breakpoint in the breakpoint entry code would
diff --git a/Documentation/core-api/floating-point.rst b/Documentation/core-api/floating-point.rst
new file mode 100644
index 0000000..a8d0d4b
--- /dev/null
+++ b/Documentation/core-api/floating-point.rst
@@ -0,0 +1,78 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+Floating-point API
+==================
+
+Kernel code is normally prohibited from using floating-point (FP) registers or
+instructions, including the C float and double data types. This rule reduces
+system call overhead, because the kernel does not need to save and restore the
+userspace floating-point register state.
+
+However, occasionally drivers or library functions may need to include FP code.
+This is supported by isolating the functions containing FP code to a separate
+translation unit (a separate source file), and saving/restoring the FP register
+state around calls to those functions. This creates "critical sections" of
+floating-point usage.
+
+The reason for this isolation is to prevent the compiler from generating code
+touching the FP registers outside these critical sections. Compilers sometimes
+use FP registers to optimize inlined ``memcpy`` or variable assignment, as
+floating-point registers may be wider than general-purpose registers.
+
+Usability of floating-point code within the kernel is architecture-specific.
+Additionally, because a single kernel may be configured to support platforms
+both with and without a floating-point unit, FPU availability must be checked
+both at build time and at run time.
+
+Several architectures implement the generic kernel floating-point API from
+``linux/fpu.h``, as described below. Some other architectures implement their
+own unique APIs, which are documented separately.
+
+Build-time API
+--------------
+
+Floating-point code may be built if the option ``ARCH_HAS_KERNEL_FPU_SUPPORT``
+is enabled. For C code, such code must be placed in a separate file, and that
+file must have its compilation flags adjusted using the following pattern::
+
+ CFLAGS_foo.o += $(CC_FLAGS_FPU)
+ CFLAGS_REMOVE_foo.o += $(CC_FLAGS_NO_FPU)
+
+Architectures are expected to define one or both of these variables in their
+top-level Makefile as needed. For example::
+
+ CC_FLAGS_FPU := -mhard-float
+
+or::
+
+ CC_FLAGS_NO_FPU := -msoft-float
+
+Normal kernel code is assumed to use the equivalent of ``CC_FLAGS_NO_FPU``.
+
+Runtime API
+-----------
+
+The runtime API is provided in ``linux/fpu.h``. This header cannot be included
+from files implementing FP code (those with their compilation flags adjusted as
+above). Instead, it must be included when defining the FP critical sections.
+
+.. c:function:: bool kernel_fpu_available( void )
+
+ This function reports if floating-point code can be used on this CPU or
+ platform. The value returned by this function is not expected to change
+ at runtime, so it only needs to be called once, not before every
+ critical section.
+
+.. c:function:: void kernel_fpu_begin( void )
+ void kernel_fpu_end( void )
+
+ These functions create a floating-point critical section. It is only
+ valid to call ``kernel_fpu_begin()`` after a previous call to
+ ``kernel_fpu_available()`` returned ``true``. These functions are only
+ guaranteed to be callable from (preemptible or non-preemptible) process
+ context.
+
+ Preemption may be disabled inside critical sections, so their size
+ should be minimized. They are *not* required to be reentrant. If the
+ caller expects to nest critical sections, it must implement its own
+ reference counting.
diff --git a/Documentation/core-api/genericirq.rst b/Documentation/core-api/genericirq.rst
index 4a46063..25f94df 100644
--- a/Documentation/core-api/genericirq.rst
+++ b/Documentation/core-api/genericirq.rst
@@ -210,7 +210,7 @@
}
}
- noop(struct irq_data *data))
+ noop(struct irq_data *data)
{
}
@@ -410,6 +410,8 @@
.. kernel-doc:: include/linux/interrupt.h
:internal:
+.. kernel-doc:: include/linux/irqdomain.h
+
Public Functions Provided
=========================
diff --git a/Documentation/core-api/index.rst b/Documentation/core-api/index.rst
index 7a3a08d..f147854 100644
--- a/Documentation/core-api/index.rst
+++ b/Documentation/core-api/index.rst
@@ -48,6 +48,7 @@
errseq
wrappers/atomic_t
wrappers/atomic_bitops
+ floating-point
Low level entry and exit
========================
@@ -102,6 +103,7 @@
dma-api-howto
dma-attributes
dma-isa-lpc
+ swiotlb
mm-api
genalloc
pin_user_pages
diff --git a/Documentation/core-api/memory-allocation.rst b/Documentation/core-api/memory-allocation.rst
index 1c58d88..8b84eb4 100644
--- a/Documentation/core-api/memory-allocation.rst
+++ b/Documentation/core-api/memory-allocation.rst
@@ -144,8 +144,10 @@
smaller than page size.
The address of a chunk allocated with `kmalloc` is aligned to at least
-ARCH_KMALLOC_MINALIGN bytes. For sizes which are a power of two, the
-alignment is also guaranteed to be at least the respective size.
+ARCH_KMALLOC_MINALIGN bytes. For sizes which are a power of two, the
+alignment is also guaranteed to be at least the respective size. For other
+sizes, the alignment is guaranteed to be at least the largest power-of-two
+divisor of the size.
Chunks allocated with kmalloc() can be resized with krealloc(). Similarly
to kmalloc_array(): a helper for resizing arrays is provided in the form of
diff --git a/Documentation/core-api/pin_user_pages.rst b/Documentation/core-api/pin_user_pages.rst
index 6b5f7e6..c16ca16 100644
--- a/Documentation/core-api/pin_user_pages.rst
+++ b/Documentation/core-api/pin_user_pages.rst
@@ -132,7 +132,7 @@
-----------------------
There are GUP references to pages that are serving
as DIO buffers. These buffers are needed for a relatively short time (so they
-are not "long term"). No special synchronization with page_mkclean() or
+are not "long term"). No special synchronization with folio_mkclean() or
munmap() is provided. Therefore, flags to set at the call site are: ::
FOLL_PIN
@@ -144,7 +144,7 @@
------------
There are GUP references to pages that are serving as DMA
buffers. These buffers are needed for a long time ("long term"). No special
-synchronization with page_mkclean() or munmap() is provided. Therefore, flags
+synchronization with folio_mkclean() or munmap() is provided. Therefore, flags
to set at the call site are: ::
FOLL_PIN | FOLL_LONGTERM
@@ -170,7 +170,7 @@
Either way, as long as the driver unpins the pages upon mmu notifier callback,
then there is proper synchronization with both filesystem and mm
-(page_mkclean(), munmap(), etc). Therefore, neither flag needs to be set.
+(folio_mkclean(), munmap(), etc). Therefore, neither flag needs to be set.
CASE 4: Pinning for struct page manipulation only
-------------------------------------------------
@@ -196,20 +196,20 @@
write to the data within the pages
put_page()
-page_maybe_dma_pinned(): the whole point of pinning
-===================================================
+folio_maybe_dma_pinned(): the whole point of pinning
+====================================================
-The whole point of marking pages as "DMA-pinned" or "gup-pinned" is to be able
-to query, "is this page DMA-pinned?" That allows code such as page_mkclean()
+The whole point of marking folios as "DMA-pinned" or "gup-pinned" is to be able
+to query, "is this folio DMA-pinned?" That allows code such as folio_mkclean()
(and file system writeback code in general) to make informed decisions about
-what to do when a page cannot be unmapped due to such pins.
+what to do when a folio cannot be unmapped due to such pins.
What to do in those cases is the subject of a years-long series of discussions
and debates (see the References at the end of this document). It's a TODO item
here: fill in the details once that's worked out. Meanwhile, it's safe to say
that having this available: ::
- static inline bool page_maybe_dma_pinned(struct page *page)
+ static inline bool folio_maybe_dma_pinned(struct folio *folio)
...is a prerequisite to solving the long-running gup+DMA problem.
diff --git a/Documentation/core-api/printk-index.rst b/Documentation/core-api/printk-index.rst
index 3062f37d..1979c5d 100644
--- a/Documentation/core-api/printk-index.rst
+++ b/Documentation/core-api/printk-index.rst
@@ -4,7 +4,7 @@
Printk Index
============
-There are many ways how to monitor the state of the system. One important
+There are many ways to monitor the state of the system. One important
source of information is the system log. It provides a lot of information,
including more or less important warnings and error messages.
@@ -101,7 +101,7 @@
Only few subsystem specific wrappers have been updated so far,
for example, dev_printk(). As a result, the printk formats from
-some subsystes can be missing in the printk index.
+some subsystems can be missing in the printk index.
Subsystem specific prefix
diff --git a/Documentation/core-api/swiotlb.rst b/Documentation/core-api/swiotlb.rst
new file mode 100644
index 0000000..cf06bae
--- /dev/null
+++ b/Documentation/core-api/swiotlb.rst
@@ -0,0 +1,321 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+===============
+DMA and swiotlb
+===============
+
+swiotlb is a memory buffer allocator used by the Linux kernel DMA layer. It is
+typically used when a device doing DMA can't directly access the target memory
+buffer because of hardware limitations or other requirements. In such a case,
+the DMA layer calls swiotlb to allocate a temporary memory buffer that conforms
+to the limitations. The DMA is done to/from this temporary memory buffer, and
+the CPU copies the data between the temporary buffer and the original target
+memory buffer. This approach is generically called "bounce buffering", and the
+temporary memory buffer is called a "bounce buffer".
+
+Device drivers don't interact directly with swiotlb. Instead, drivers inform
+the DMA layer of the DMA attributes of the devices they are managing, and use
+the normal DMA map, unmap, and sync APIs when programming a device to do DMA.
+These APIs use the device DMA attributes and kernel-wide settings to determine
+if bounce buffering is necessary. If so, the DMA layer manages the allocation,
+freeing, and sync'ing of bounce buffers. Since the DMA attributes are per
+device, some devices in a system may use bounce buffering while others do not.
+
+Because the CPU copies data between the bounce buffer and the original target
+memory buffer, doing bounce buffering is slower than doing DMA directly to the
+original memory buffer, and it consumes more CPU resources. So it is used only
+when necessary for providing DMA functionality.
+
+Usage Scenarios
+---------------
+swiotlb was originally created to handle DMA for devices with addressing
+limitations. As physical memory sizes grew beyond 4 GiB, some devices could
+only provide 32-bit DMA addresses. By allocating bounce buffer memory below
+the 4 GiB line, these devices with addressing limitations could still work and
+do DMA.
+
+More recently, Confidential Computing (CoCo) VMs have the guest VM's memory
+encrypted by default, and the memory is not accessible by the host hypervisor
+and VMM. For the host to do I/O on behalf of the guest, the I/O must be
+directed to guest memory that is unencrypted. CoCo VMs set a kernel-wide option
+to force all DMA I/O to use bounce buffers, and the bounce buffer memory is set
+up as unencrypted. The host does DMA I/O to/from the bounce buffer memory, and
+the Linux kernel DMA layer does "sync" operations to cause the CPU to copy the
+data to/from the original target memory buffer. The CPU copying bridges between
+the unencrypted and the encrypted memory. This use of bounce buffers allows
+device drivers to "just work" in a CoCo VM, with no modifications
+needed to handle the memory encryption complexity.
+
+Other edge case scenarios arise for bounce buffers. For example, when IOMMU
+mappings are set up for a DMA operation to/from a device that is considered
+"untrusted", the device should be given access only to the memory containing
+the data being transferred. But if that memory occupies only part of an IOMMU
+granule, other parts of the granule may contain unrelated kernel data. Since
+IOMMU access control is per-granule, the untrusted device can gain access to
+the unrelated kernel data. This problem is solved by bounce buffering the DMA
+operation and ensuring that unused portions of the bounce buffers do not
+contain any unrelated kernel data.
+
+Core Functionality
+------------------
+The primary swiotlb APIs are swiotlb_tbl_map_single() and
+swiotlb_tbl_unmap_single(). The "map" API allocates a bounce buffer of a
+specified size in bytes and returns the physical address of the buffer. The
+buffer memory is physically contiguous. The expectation is that the DMA layer
+maps the physical memory address to a DMA address, and returns the DMA address
+to the driver for programming into the device. If a DMA operation specifies
+multiple memory buffer segments, a separate bounce buffer must be allocated for
+each segment. swiotlb_tbl_map_single() always does a "sync" operation (i.e., a
+CPU copy) to initialize the bounce buffer to match the contents of the original
+buffer.
+
+swiotlb_tbl_unmap_single() does the reverse. If the DMA operation might have
+updated the bounce buffer memory and DMA_ATTR_SKIP_CPU_SYNC is not set, the
+unmap does a "sync" operation to cause a CPU copy of the data from the bounce
+buffer back to the original buffer. Then the bounce buffer memory is freed.
+
+swiotlb also provides "sync" APIs that correspond to the dma_sync_*() APIs that
+a driver may use when control of a buffer transitions between the CPU and the
+device. The swiotlb "sync" APIs cause a CPU copy of the data between the
+original buffer and the bounce buffer. Like the dma_sync_*() APIs, the swiotlb
+"sync" APIs support doing a partial sync, where only a subset of the bounce
+buffer is copied to/from the original buffer.
+
+Core Functionality Constraints
+------------------------------
+The swiotlb map/unmap/sync APIs must operate without blocking, as they are
+called by the corresponding DMA APIs which may run in contexts that cannot
+block. Hence the default memory pool for swiotlb allocations must be
+pre-allocated at boot time (but see Dynamic swiotlb below). Because swiotlb
+allocations must be physically contiguous, the entire default memory pool is
+allocated as a single contiguous block.
+
+The need to pre-allocate the default swiotlb pool creates a boot-time tradeoff.
+The pool should be large enough to ensure that bounce buffer requests can
+always be satisfied, as the non-blocking requirement means requests can't wait
+for space to become available. But a large pool potentially wastes memory, as
+this pre-allocated memory is not available for other uses in the system. The
+tradeoff is particularly acute in CoCo VMs that use bounce buffers for all DMA
+I/O. These VMs use a heuristic to set the default pool size to ~6% of memory,
+with a max of 1 GiB, which has the potential to be very wasteful of memory.
+Conversely, the heuristic might produce a size that is insufficient, depending
+on the I/O patterns of the workload in the VM. The dynamic swiotlb feature
+described below can help, but has limitations. Better management of the swiotlb
+default memory pool size remains an open issue.
+
+A single allocation from swiotlb is limited to IO_TLB_SIZE * IO_TLB_SEGSIZE
+bytes, which is 256 KiB with current definitions. When a device's DMA settings
+are such that the device might use swiotlb, the maximum size of a DMA segment
+must be limited to that 256 KiB. This value is communicated to higher-level
+kernel code via dma_map_mapping_size() and swiotlb_max_mapping_size(). If the
+higher-level code fails to account for this limit, it may make requests that
+are too large for swiotlb, and get a "swiotlb full" error.
+
+A key device DMA setting is "min_align_mask", which is a power of 2 minus 1
+so that some number of low order bits are set, or it may be zero. swiotlb
+allocations ensure these min_align_mask bits of the physical address of the
+bounce buffer match the same bits in the address of the original buffer. When
+min_align_mask is non-zero, it may produce an "alignment offset" in the address
+of the bounce buffer that slightly reduces the maximum size of an allocation.
+This potential alignment offset is reflected in the value returned by
+swiotlb_max_mapping_size(), which can show up in places like
+/sys/block/<device>/queue/max_sectors_kb. For example, if a device does not use
+swiotlb, max_sectors_kb might be 512 KiB or larger. If a device might use
+swiotlb, max_sectors_kb will be 256 KiB. When min_align_mask is non-zero,
+max_sectors_kb might be even smaller, such as 252 KiB.
+
+swiotlb_tbl_map_single() also takes an "alloc_align_mask" parameter. This
+parameter specifies the allocation of bounce buffer space must start at a
+physical address with the alloc_align_mask bits set to zero. But the actual
+bounce buffer might start at a larger address if min_align_mask is non-zero.
+Hence there may be pre-padding space that is allocated prior to the start of
+the bounce buffer. Similarly, the end of the bounce buffer is rounded up to an
+alloc_align_mask boundary, potentially resulting in post-padding space. Any
+pre-padding or post-padding space is not initialized by swiotlb code. The
+"alloc_align_mask" parameter is used by IOMMU code when mapping for untrusted
+devices. It is set to the granule size - 1 so that the bounce buffer is
+allocated entirely from granules that are not used for any other purpose.
+
+Data structures concepts
+------------------------
+Memory used for swiotlb bounce buffers is allocated from overall system memory
+as one or more "pools". The default pool is allocated during system boot with a
+default size of 64 MiB. The default pool size may be modified with the
+"swiotlb=" kernel boot line parameter. The default size may also be adjusted
+due to other conditions, such as running in a CoCo VM, as described above. If
+CONFIG_SWIOTLB_DYNAMIC is enabled, additional pools may be allocated later in
+the life of the system. Each pool must be a contiguous range of physical
+memory. The default pool is allocated below the 4 GiB physical address line so
+it works for devices that can only address 32-bits of physical memory (unless
+architecture-specific code provides the SWIOTLB_ANY flag). In a CoCo VM, the
+pool memory must be decrypted before swiotlb is used.
+
+Each pool is divided into "slots" of size IO_TLB_SIZE, which is 2 KiB with
+current definitions. IO_TLB_SEGSIZE contiguous slots (128 slots) constitute
+what might be called a "slot set". When a bounce buffer is allocated, it
+occupies one or more contiguous slots. A slot is never shared by multiple
+bounce buffers. Furthermore, a bounce buffer must be allocated from a single
+slot set, which leads to the maximum bounce buffer size being IO_TLB_SIZE *
+IO_TLB_SEGSIZE. Multiple smaller bounce buffers may co-exist in a single slot
+set if the alignment and size constraints can be met.
+
+Slots are also grouped into "areas", with the constraint that a slot set exists
+entirely in a single area. Each area has its own spin lock that must be held to
+manipulate the slots in that area. The division into areas avoids contending
+for a single global spin lock when swiotlb is heavily used, such as in a CoCo
+VM. The number of areas defaults to the number of CPUs in the system for
+maximum parallelism, but since an area can't be smaller than IO_TLB_SEGSIZE
+slots, it might be necessary to assign multiple CPUs to the same area. The
+number of areas can also be set via the "swiotlb=" kernel boot parameter.
+
+When allocating a bounce buffer, if the area associated with the calling CPU
+does not have enough free space, areas associated with other CPUs are tried
+sequentially. For each area tried, the area's spin lock must be obtained before
+trying an allocation, so contention may occur if swiotlb is relatively busy
+overall. But an allocation request does not fail unless all areas do not have
+enough free space.
+
+IO_TLB_SIZE, IO_TLB_SEGSIZE, and the number of areas must all be powers of 2 as
+the code uses shifting and bit masking to do many of the calculations. The
+number of areas is rounded up to a power of 2 if necessary to meet this
+requirement.
+
+The default pool is allocated with PAGE_SIZE alignment. If an alloc_align_mask
+argument to swiotlb_tbl_map_single() specifies a larger alignment, one or more
+initial slots in each slot set might not meet the alloc_align_mask criterium.
+Because a bounce buffer allocation can't cross a slot set boundary, eliminating
+those initial slots effectively reduces the max size of a bounce buffer.
+Currently, there's no problem because alloc_align_mask is set based on IOMMU
+granule size, and granules cannot be larger than PAGE_SIZE. But if that were to
+change in the future, the initial pool allocation might need to be done with
+alignment larger than PAGE_SIZE.
+
+Dynamic swiotlb
+---------------
+When CONFIG_SWIOTLB_DYNAMIC is enabled, swiotlb can do on-demand expansion of
+the amount of memory available for allocation as bounce buffers. If a bounce
+buffer request fails due to lack of available space, an asynchronous background
+task is kicked off to allocate memory from general system memory and turn it
+into an swiotlb pool. Creating an additional pool must be done asynchronously
+because the memory allocation may block, and as noted above, swiotlb requests
+are not allowed to block. Once the background task is kicked off, the bounce
+buffer request creates a "transient pool" to avoid returning an "swiotlb full"
+error. A transient pool has the size of the bounce buffer request, and is
+deleted when the bounce buffer is freed. Memory for this transient pool comes
+from the general system memory atomic pool so that creation does not block.
+Creating a transient pool has relatively high cost, particularly in a CoCo VM
+where the memory must be decrypted, so it is done only as a stopgap until the
+background task can add another non-transient pool.
+
+Adding a dynamic pool has limitations. Like with the default pool, the memory
+must be physically contiguous, so the size is limited to MAX_PAGE_ORDER pages
+(e.g., 4 MiB on a typical x86 system). Due to memory fragmentation, a max size
+allocation may not be available. The dynamic pool allocator tries smaller sizes
+until it succeeds, but with a minimum size of 1 MiB. Given sufficient system
+memory fragmentation, dynamically adding a pool might not succeed at all.
+
+The number of areas in a dynamic pool may be different from the number of areas
+in the default pool. Because the new pool size is typically a few MiB at most,
+the number of areas will likely be smaller. For example, with a new pool size
+of 4 MiB and the 256 KiB minimum area size, only 16 areas can be created. If
+the system has more than 16 CPUs, multiple CPUs must share an area, creating
+more lock contention.
+
+New pools added via dynamic swiotlb are linked together in a linear list.
+swiotlb code frequently must search for the pool containing a particular
+swiotlb physical address, so that search is linear and not performant with a
+large number of dynamic pools. The data structures could be improved for
+faster searches.
+
+Overall, dynamic swiotlb works best for small configurations with relatively
+few CPUs. It allows the default swiotlb pool to be smaller so that memory is
+not wasted, with dynamic pools making more space available if needed (as long
+as fragmentation isn't an obstacle). It is less useful for large CoCo VMs.
+
+Data Structure Details
+----------------------
+swiotlb is managed with four primary data structures: io_tlb_mem, io_tlb_pool,
+io_tlb_area, and io_tlb_slot. io_tlb_mem describes a swiotlb memory allocator,
+which includes the default memory pool and any dynamic or transient pools
+linked to it. Limited statistics on swiotlb usage are kept per memory allocator
+and are stored in this data structure. These statistics are available under
+/sys/kernel/debug/swiotlb when CONFIG_DEBUG_FS is set.
+
+io_tlb_pool describes a memory pool, either the default pool, a dynamic pool,
+or a transient pool. The description includes the start and end addresses of
+the memory in the pool, a pointer to an array of io_tlb_area structures, and a
+pointer to an array of io_tlb_slot structures that are associated with the pool.
+
+io_tlb_area describes an area. The primary field is the spin lock used to
+serialize access to slots in the area. The io_tlb_area array for a pool has an
+entry for each area, and is accessed using a 0-based area index derived from the
+calling processor ID. Areas exist solely to allow parallel access to swiotlb
+from multiple CPUs.
+
+io_tlb_slot describes an individual memory slot in the pool, with size
+IO_TLB_SIZE (2 KiB currently). The io_tlb_slot array is indexed by the slot
+index computed from the bounce buffer address relative to the starting memory
+address of the pool. The size of struct io_tlb_slot is 24 bytes, so the
+overhead is about 1% of the slot size.
+
+The io_tlb_slot array is designed to meet several requirements. First, the DMA
+APIs and the corresponding swiotlb APIs use the bounce buffer address as the
+identifier for a bounce buffer. This address is returned by
+swiotlb_tbl_map_single(), and then passed as an argument to
+swiotlb_tbl_unmap_single() and the swiotlb_sync_*() functions. The original
+memory buffer address obviously must be passed as an argument to
+swiotlb_tbl_map_single(), but it is not passed to the other APIs. Consequently,
+swiotlb data structures must save the original memory buffer address so that it
+can be used when doing sync operations. This original address is saved in the
+io_tlb_slot array.
+
+Second, the io_tlb_slot array must handle partial sync requests. In such cases,
+the argument to swiotlb_sync_*() is not the address of the start of the bounce
+buffer but an address somewhere in the middle of the bounce buffer, and the
+address of the start of the bounce buffer isn't known to swiotlb code. But
+swiotlb code must be able to calculate the corresponding original memory buffer
+address to do the CPU copy dictated by the "sync". So an adjusted original
+memory buffer address is populated into the struct io_tlb_slot for each slot
+occupied by the bounce buffer. An adjusted "alloc_size" of the bounce buffer is
+also recorded in each struct io_tlb_slot so a sanity check can be performed on
+the size of the "sync" operation. The "alloc_size" field is not used except for
+the sanity check.
+
+Third, the io_tlb_slot array is used to track available slots. The "list" field
+in struct io_tlb_slot records how many contiguous available slots exist starting
+at that slot. A "0" indicates that the slot is occupied. A value of "1"
+indicates only the current slot is available. A value of "2" indicates the
+current slot and the next slot are available, etc. The maximum value is
+IO_TLB_SEGSIZE, which can appear in the first slot in a slot set, and indicates
+that the entire slot set is available. These values are used when searching for
+available slots to use for a new bounce buffer. They are updated when allocating
+a new bounce buffer and when freeing a bounce buffer. At pool creation time, the
+"list" field is initialized to IO_TLB_SEGSIZE down to 1 for the slots in every
+slot set.
+
+Fourth, the io_tlb_slot array keeps track of any "padding slots" allocated to
+meet alloc_align_mask requirements described above. When
+swiotlb_tlb_map_single() allocates bounce buffer space to meet alloc_align_mask
+requirements, it may allocate pre-padding space across zero or more slots. But
+when swiotbl_tlb_unmap_single() is called with the bounce buffer address, the
+alloc_align_mask value that governed the allocation, and therefore the
+allocation of any padding slots, is not known. The "pad_slots" field records
+the number of padding slots so that swiotlb_tbl_unmap_single() can free them.
+The "pad_slots" value is recorded only in the first non-padding slot allocated
+to the bounce buffer.
+
+Restricted pools
+----------------
+The swiotlb machinery is also used for "restricted pools", which are pools of
+memory separate from the default swiotlb pool, and that are dedicated for DMA
+use by a particular device. Restricted pools provide a level of DMA memory
+protection on systems with limited hardware protection capabilities, such as
+those lacking an IOMMU. Such usage is specified by DeviceTree entries and
+requires that CONFIG_DMA_RESTRICTED_POOL is set. Each restricted pool is based
+on its own io_tlb_mem data structure that is independent of the main swiotlb
+io_tlb_mem.
+
+Restricted pools add swiotlb_alloc() and swiotlb_free() APIs, which are called
+from the dma_alloc_*() and dma_free_*() APIs. The swiotlb_alloc/free() APIs
+allocate/free slots from/to the restricted pool directly and do not go through
+swiotlb_tbl_map/unmap_single().
diff --git a/Documentation/core-api/workqueue.rst b/Documentation/core-api/workqueue.rst
index bcc370c..16f861c 100644
--- a/Documentation/core-api/workqueue.rst
+++ b/Documentation/core-api/workqueue.rst
@@ -260,7 +260,7 @@
is in flight at any given time and the work items are processed in
queueing order. While the combination of ``@max_active`` of 1 and
``WQ_UNBOUND`` used to achieve this behavior, this is no longer the
-case. Use ``alloc_ordered_queue()`` instead.
+case. Use alloc_ordered_workqueue() instead.
Example Execution Scenarios
diff --git a/Documentation/crypto/async-tx-api.rst b/Documentation/crypto/async-tx-api.rst
index 27c146b..f88a780 100644
--- a/Documentation/crypto/async-tx-api.rst
+++ b/Documentation/crypto/async-tx-api.rst
@@ -150,38 +150,38 @@
Perform a xor->copy->xor operation where each operation depends on the
result from the previous operation::
- void callback(void *param)
- {
- struct completion *cmp = param;
+ #include <linux/async_tx.h>
- complete(cmp);
+ static void callback(void *param)
+ {
+ complete(param);
}
- void run_xor_copy_xor(struct page **xor_srcs,
- int xor_src_cnt,
- struct page *xor_dest,
- size_t xor_len,
- struct page *copy_src,
- struct page *copy_dest,
- size_t copy_len)
+ #define NDISKS 2
+
+ static void run_xor_copy_xor(struct page **xor_srcs,
+ struct page *xor_dest,
+ size_t xor_len,
+ struct page *copy_src,
+ struct page *copy_dest,
+ size_t copy_len)
{
struct dma_async_tx_descriptor *tx;
- addr_conv_t addr_conv[xor_src_cnt];
struct async_submit_ctl submit;
addr_conv_t addr_conv[NDISKS];
struct completion cmp;
init_async_submit(&submit, ASYNC_TX_XOR_DROP_DST, NULL, NULL, NULL,
addr_conv);
- tx = async_xor(xor_dest, xor_srcs, 0, xor_src_cnt, xor_len, &submit)
+ tx = async_xor(xor_dest, xor_srcs, 0, NDISKS, xor_len, &submit);
- submit->depend_tx = tx;
+ submit.depend_tx = tx;
tx = async_memcpy(copy_dest, copy_src, 0, 0, copy_len, &submit);
init_completion(&cmp);
init_async_submit(&submit, ASYNC_TX_XOR_DROP_DST | ASYNC_TX_ACK, tx,
callback, &cmp, addr_conv);
- tx = async_xor(xor_dest, xor_srcs, 0, xor_src_cnt, xor_len, &submit);
+ tx = async_xor(xor_dest, xor_srcs, 0, NDISKS, xor_len, &submit);
async_tx_issue_pending_all();
diff --git a/Documentation/dev-tools/checkpatch.rst b/Documentation/dev-tools/checkpatch.rst
index 1279689..a9fac97 100644
--- a/Documentation/dev-tools/checkpatch.rst
+++ b/Documentation/dev-tools/checkpatch.rst
@@ -906,6 +906,20 @@
See: https://lore.kernel.org/lkml/1399671106.2912.21.camel@joe-AO725/
+ **MACRO_ARG_UNUSED**
+ If function-like macros do not utilize a parameter, it might result
+ in a build warning. We advocate for utilizing static inline functions
+ to replace such macros.
+ For example, for a macro such as the one below::
+
+ #define test(a) do { } while (0)
+
+ there would be a warning like below::
+
+ WARNING: Argument 'a' is not used in function-like macro.
+
+ See: https://www.kernel.org/doc/html/latest/process/coding-style.html#macros-enums-and-rtl
+
**SINGLE_STATEMENT_DO_WHILE_MACRO**
For the multi-statement macros, it is necessary to use the do-while
loop to avoid unpredictable code paths. The do-while loop helps to
diff --git a/Documentation/process/clang-format.rst b/Documentation/dev-tools/clang-format.rst
similarity index 100%
rename from Documentation/process/clang-format.rst
rename to Documentation/dev-tools/clang-format.rst
diff --git a/Documentation/dev-tools/gpio-sloppy-logic-analyzer.rst b/Documentation/dev-tools/gpio-sloppy-logic-analyzer.rst
new file mode 100644
index 0000000..d69f24c
--- /dev/null
+++ b/Documentation/dev-tools/gpio-sloppy-logic-analyzer.rst
@@ -0,0 +1,93 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=============================================
+Linux Kernel GPIO based sloppy logic analyzer
+=============================================
+
+:Author: Wolfram Sang
+
+Introduction
+============
+
+This document briefly describes how to run the GPIO based in-kernel sloppy
+logic analyzer running on an isolated CPU.
+
+The sloppy logic analyzer will utilize a few GPIO lines in input mode on a
+system to rapidly sample these digital lines, which will, if the Nyquist
+criteria is met, result in a time series log with approximate waveforms as they
+appeared on these lines. One way to use it is to analyze external traffic
+connected to these GPIO lines with wires (i.e. digital probes), acting as a
+common logic analyzer.
+
+Another feature is to snoop on on-chip peripherals if the I/O cells of these
+peripherals can be used in GPIO input mode at the same time as they are being
+used as inputs or outputs for the peripheral. That means you could e.g. snoop
+I2C traffic without any wiring (if your hardware supports it). In the pin
+control subsystem such pin controllers are called "non-strict": a certain pin
+can be used with a certain peripheral and as a GPIO input line at the same
+time.
+
+Note that this is a last resort analyzer which can be affected by latencies,
+non-deterministic code paths and non-maskable interrupts. It is called 'sloppy'
+for a reason. However, for e.g. remote development, it may be useful to get a
+first view and aid further debugging.
+
+Setup
+=====
+
+Your kernel must have CONFIG_DEBUG_FS and CONFIG_CPUSETS enabled. Ideally, your
+runtime environment does not utilize cpusets otherwise, then isolation of a CPU
+core is easiest. If you do need cpusets, check that helper script for the
+sloppy logic analyzer does not interfere with your other settings.
+
+Tell the kernel which GPIOs are used as probes. For a Device Tree based system,
+you need to use the following bindings. Because these bindings are only for
+debugging, there is no official schema::
+
+ i2c-analyzer {
+ compatible = "gpio-sloppy-logic-analyzer";
+ probe-gpios = <&gpio6 21 GPIO_OPEN_DRAIN>, <&gpio6 4 GPIO_OPEN_DRAIN>;
+ probe-names = "SCL", "SDA";
+ };
+
+Note that you must provide a name for every GPIO specified. Currently a
+maximum of 8 probes are supported. 32 are likely possible but are not
+implemented yet.
+
+Usage
+=====
+
+The logic analyzer is configurable via files in debugfs. However, it is
+strongly recommended to not use them directly, but to use the script
+``tools/gpio/gpio-sloppy-logic-analyzer``. Besides checking parameters more
+extensively, it will isolate the CPU core so you will have the least
+disturbance while measuring.
+
+The script has a help option explaining the parameters. For the above DT
+snippet which analyzes an I2C bus at 400kHz on a Renesas Salvator-XS board, the
+following settings are used: The isolated CPU shall be CPU1 because it is a big
+core in a big.LITTLE setup. Because CPU1 is the default, we don't need a
+parameter. The bus speed is 400kHz. So, the sampling theorem says we need to
+sample at least at 800kHz. However, falling edges of both signals in an I2C
+start condition happen faster, so we need a higher sampling frequency, e.g.
+``-s 1500000`` for 1.5MHz. Also, we don't want to sample right away but wait
+for a start condition on an idle bus. So, we need to set a trigger to a falling
+edge on SDA while SCL stays high, i.e. ``-t 1H+2F``. Last is the duration, let
+us assume 15ms here which results in the parameter ``-d 15000``. So,
+altogether::
+
+ gpio-sloppy-logic-analyzer -s 1500000 -t 1H+2F -d 15000
+
+Note that the process will return you back to the prompt but a sub-process is
+still sampling in the background. Unless this has finished, you will not find a
+result file in the current or specified directory. For the above example, we
+will then need to trigger I2C communication::
+
+ i2cdetect -y -r <your bus number>
+
+Result is a .sr file to be consumed with PulseView or sigrok-cli from the free
+`sigrok`_ project. It is a zip file which also contains the binary sample data
+which may be consumed by other software. The filename is the logic analyzer
+instance name plus a since-epoch timestamp.
+
+.. _sigrok: https://sigrok.org/
diff --git a/Documentation/dev-tools/index.rst b/Documentation/dev-tools/index.rst
index efa49cd..53d4d124 100644
--- a/Documentation/dev-tools/index.rst
+++ b/Documentation/dev-tools/index.rst
@@ -16,6 +16,7 @@
testing-overview
checkpatch
+ clang-format
coccinelle
sparse
kcov
@@ -32,6 +33,7 @@
kunit/index
ktap
checkuapi
+ gpio-sloppy-logic-analyzer
.. only:: subproject and html
diff --git a/Documentation/dev-tools/kcsan.rst b/Documentation/dev-tools/kcsan.rst
index 94b6802..02143f0 100644
--- a/Documentation/dev-tools/kcsan.rst
+++ b/Documentation/dev-tools/kcsan.rst
@@ -91,6 +91,16 @@
behaviour when encountering a data race is deemed safe. Please see
`"Marking Shared-Memory Accesses" in the LKMM`_ for more information.
+* Similar to ``data_race(...)``, the type qualifier ``__data_racy`` can be used
+ to document that all data races due to accesses to a variable are intended
+ and should be ignored by KCSAN::
+
+ struct foo {
+ ...
+ int __data_racy stats_counter;
+ ...
+ };
+
* Disabling data race detection for entire functions can be accomplished by
using the function attribute ``__no_kcsan``::
diff --git a/Documentation/dev-tools/kmsan.rst b/Documentation/dev-tools/kmsan.rst
index 323eeda..6a48d96 100644
--- a/Documentation/dev-tools/kmsan.rst
+++ b/Documentation/dev-tools/kmsan.rst
@@ -110,6 +110,13 @@
function in the file or directory. Most users won't need KMSAN_SANITIZE, unless
their code gets broken by KMSAN (e.g. runs at early boot time).
+KMSAN checks can also be temporarily disabled for the current task using
+``kmsan_disable_current()`` and ``kmsan_enable_current()`` calls. Each
+``kmsan_enable_current()`` call must be preceded by a
+``kmsan_disable_current()`` call; these call pairs may be nested. One needs to
+be careful with these calls, keeping the regions short and preferring other
+ways to disable instrumentation, where possible.
+
Support
=======
@@ -338,11 +345,11 @@
~~~~~~~~~~~~~~~~~~~~
Every task_struct has an associated KMSAN task state that holds the KMSAN
-context (see above) and a per-task flag disallowing KMSAN reports::
+context (see above) and a per-task counter disallowing KMSAN reports::
struct kmsan_context {
...
- bool allow_reporting;
+ unsigned int depth;
struct kmsan_context_state cstate;
...
}
diff --git a/Documentation/dev-tools/kselftest.rst b/Documentation/dev-tools/kselftest.rst
index ff10dc6e..f3766e3 100644
--- a/Documentation/dev-tools/kselftest.rst
+++ b/Documentation/dev-tools/kselftest.rst
@@ -183,7 +183,7 @@
which will run the tests you can configure a test runner on those systems to
use a greater or lower timeout on the command line as with the `-o` or
the `--override-timeout` argument. For example to use 165 seconds instead
-one would use:
+one would use::
$ ./run_kselftest.sh --override-timeout 165
@@ -228,6 +228,13 @@
* Don't cause the top-level "make run_tests" to fail if your feature is
unconfigured.
+ * The output of tests must conform to the TAP standard to ensure high
+ testing quality and to capture failures/errors with specific details.
+ The kselftest.h and kselftest_harness.h headers provide wrappers for
+ outputting test results. These wrappers should be used for pass,
+ fail, exit, and skip messages. CI systems can easily parse TAP output
+ messages to detect test results.
+
Contributing new tests (details)
================================
diff --git a/Documentation/devicetree/bindings/Makefile b/Documentation/devicetree/bindings/Makefile
index 5e08e3a..bf7d646 100644
--- a/Documentation/devicetree/bindings/Makefile
+++ b/Documentation/devicetree/bindings/Makefile
@@ -25,23 +25,25 @@
$(obj)/%.example.dts: $(src)/%.yaml check_dtschema_version FORCE
$(call if_changed,extract_ex)
-find_all_cmd = find $(srctree)/$(src) \( -name '*.yaml' ! \
+find_all_cmd = find $(src) \( -name '*.yaml' ! \
-name 'processed-schema*' \)
find_cmd = $(find_all_cmd) | \
sed 's|^$(srctree)/||' | \
grep -F -e "$(subst :," -e ",$(DT_SCHEMA_FILES))" | \
sed 's|^|$(srctree)/|'
-CHK_DT_DOCS := $(shell $(find_cmd))
+CHK_DT_EXAMPLES := $(patsubst $(srctree)/%.yaml,%.example.dtb, $(shell $(find_cmd)))
quiet_cmd_yamllint = LINT $(src)
cmd_yamllint = ($(find_cmd) | \
xargs -n200 -P$$(nproc) \
- $(DT_SCHEMA_LINT) -f parsable -c $(srctree)/$(src)/.yamllint >&2) || true
+ $(DT_SCHEMA_LINT) -f parsable -c $(src)/.yamllint >&2) \
+ && touch $@ || true
-quiet_cmd_chk_bindings = CHKDT $@
+quiet_cmd_chk_bindings = CHKDT $(src)
cmd_chk_bindings = ($(find_cmd) | \
- xargs -n200 -P$$(nproc) $(DT_DOC_CHECKER) -u $(srctree)/$(src)) || true
+ xargs -n200 -P$$(nproc) $(DT_DOC_CHECKER) -u $(src)) \
+ && touch $@ || true
quiet_cmd_mk_schema = SCHEMA $@
cmd_mk_schema = f=$$(mktemp) ; \
@@ -49,12 +51,6 @@
$(DT_MK_SCHEMA) -j $(DT_MK_SCHEMA_FLAGS) @$$f > $@ ; \
rm -f $$f
-define rule_chkdt
- $(if $(DT_SCHEMA_LINT),$(call cmd,yamllint),)
- $(call cmd,chk_bindings)
- $(call cmd,mk_schema)
-endef
-
DT_DOCS = $(patsubst $(srctree)/%,%,$(shell $(find_all_cmd)))
override DTC_FLAGS := \
@@ -64,12 +60,19 @@
-Wno-unique_unit_address \
-Wunique_unit_address_if_enabled
-$(obj)/processed-schema.json: $(DT_DOCS) $(src)/.yamllint check_dtschema_version FORCE
- $(call if_changed_rule,chkdt)
+$(obj)/processed-schema.json: $(DT_DOCS) check_dtschema_version FORCE
+ $(call if_changed,mk_schema)
+
+targets += .dt-binding.checked .yamllint.checked
+$(obj)/.yamllint.checked: $(DT_DOCS) $(src)/.yamllint FORCE
+ $(if $(DT_SCHEMA_LINT),$(call if_changed,yamllint),)
+
+$(obj)/.dt-binding.checked: $(DT_DOCS) FORCE
+ $(call if_changed,chk_bindings)
always-y += processed-schema.json
-always-$(CHECK_DT_BINDING) += $(patsubst $(srctree)/$(src)/%.yaml,%.example.dts, $(CHK_DT_DOCS))
-always-$(CHECK_DT_BINDING) += $(patsubst $(srctree)/$(src)/%.yaml,%.example.dtb, $(CHK_DT_DOCS))
+targets += $(patsubst $(obj)/%,%, $(CHK_DT_EXAMPLES))
+targets += $(patsubst $(obj)/%.dtb,%.dts, $(CHK_DT_EXAMPLES))
# Hack: avoid 'Argument list too long' error for 'make clean'. Remove most of
# build artifacts here before they are processed by scripts/Makefile.clean
@@ -78,3 +81,6 @@
dt_compatible_check: $(obj)/processed-schema.json
$(Q)$(srctree)/scripts/dtc/dt-extract-compatibles $(srctree) | xargs dt-check-compatible -v -s $<
+
+PHONY += dt_binding_check
+dt_binding_check: $(obj)/.dt-binding.checked $(obj)/.yamllint.checked $(CHK_DT_EXAMPLES)
diff --git a/Documentation/devicetree/bindings/access-controllers/access-controllers.yaml b/Documentation/devicetree/bindings/access-controllers/access-controllers.yaml
new file mode 100644
index 0000000..99e2865
--- /dev/null
+++ b/Documentation/devicetree/bindings/access-controllers/access-controllers.yaml
@@ -0,0 +1,84 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/access-controllers/access-controllers.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Generic Domain Access Controllers
+
+maintainers:
+ - Oleksii Moisieiev <oleksii_moisieiev@epam.com>
+
+description: |+
+ Common access controllers properties
+
+ Access controllers are in charge of stating which of the hardware blocks under
+ their responsibility (their domain) can be accesssed by which compartment. A
+ compartment can be a cluster of CPUs (or coprocessors), a range of addresses
+ or a group of hardware blocks. An access controller's domain is the set of
+ resources covered by the access controller.
+
+ This device tree binding can be used to bind devices to their access
+ controller provided by access-controllers property. In this case, the device
+ is a consumer and the access controller is the provider.
+
+ An access controller can be represented by any node in the device tree and
+ can provide one or more configuration parameters, needed to control parameters
+ of the consumer device. A consumer node can refer to the provider by phandle
+ and a set of phandle arguments, specified by '#access-controller-cells'
+ property in the access controller node.
+
+ Access controllers are typically used to set/read the permissions of a
+ hardware block and grant access to it. Any of which depends on the access
+ controller. The capabilities of each access controller are defined by the
+ binding of the access controller device.
+
+ Each node can be a consumer for the several access controllers.
+
+# always select the core schema
+select: true
+
+properties:
+ "#access-controller-cells":
+ description:
+ Number of cells in an access-controllers specifier;
+ Can be any value as specified by device tree binding documentation
+ of a particular provider. The node is an access controller.
+
+ access-controller-names:
+ $ref: /schemas/types.yaml#/definitions/string-array
+ description:
+ A list of access-controllers names, sorted in the same order as
+ access-controllers entries. Consumer drivers will use
+ access-controller-names to match with existing access-controllers entries.
+
+ access-controllers:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ description:
+ A list of access controller specifiers, as defined by the
+ bindings of the access-controllers provider.
+
+additionalProperties: true
+
+examples:
+ - |
+ clock_controller: access-controllers@50000 {
+ reg = <0x50000 0x400>;
+ #access-controller-cells = <2>;
+ };
+
+ bus_controller: bus@60000 {
+ reg = <0x60000 0x10000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+ #access-controller-cells = <3>;
+
+ uart4: serial@60100 {
+ reg = <0x60100 0x400>;
+ clocks = <&clk_serial>;
+ access-controllers = <&clock_controller 1 2>,
+ <&bus_controller 1 3 5>;
+ access-controller-names = "clock", "bus";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/arm/airoha.yaml b/Documentation/devicetree/bindings/arm/airoha.yaml
index 3292c66..7c38c08 100644
--- a/Documentation/devicetree/bindings/arm/airoha.yaml
+++ b/Documentation/devicetree/bindings/arm/airoha.yaml
@@ -22,6 +22,10 @@
- enum:
- airoha,en7523-evb
- const: airoha,en7523
+ - items:
+ - enum:
+ - airoha,en7581-evb
+ - const: airoha,en7581
additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/altera/socfpga-sdram-controller.txt b/Documentation/devicetree/bindings/arm/altera/socfpga-sdram-controller.txt
deleted file mode 100644
index 77ca635..0000000
--- a/Documentation/devicetree/bindings/arm/altera/socfpga-sdram-controller.txt
+++ /dev/null
@@ -1,12 +0,0 @@
-Altera SOCFPGA SDRAM Controller
-
-Required properties:
-- compatible : Should contain "altr,sdr-ctl" and "syscon".
- syscon is required by the Altera SOCFPGA SDRAM EDAC.
-- reg : Should contain 1 register range (address and length)
-
-Example:
- sdr: sdr@ffc25000 {
- compatible = "altr,sdr-ctl", "syscon";
- reg = <0xffc25000 0x1000>;
- };
diff --git a/Documentation/devicetree/bindings/arm/amlogic.yaml b/Documentation/devicetree/bindings/arm/amlogic.yaml
index 949537c..0647851 100644
--- a/Documentation/devicetree/bindings/arm/amlogic.yaml
+++ b/Documentation/devicetree/bindings/arm/amlogic.yaml
@@ -91,6 +91,7 @@
- libretech,aml-s905x-cc
- libretech,aml-s905x-cc-v2
- nexbox,a95x
+ - osmc,vero4k
- const: amlogic,s905x
- const: amlogic,meson-gxl
@@ -107,6 +108,13 @@
- const: amlogic,s905d
- const: amlogic,meson-gxl
+ - description: Boards with the Amlogic Meson GXLX S905L SoC
+ items:
+ - enum:
+ - amlogic,p271
+ - const: amlogic,s905l
+ - const: amlogic,meson-gxlx
+
- description: Boards with the Amlogic Meson GXM S912 SoC
items:
- enum:
@@ -157,6 +165,7 @@
items:
- enum:
- bananapi,bpi-cm4io
+ - mntre,reform2-cm4
- const: bananapi,bpi-cm4
- const: amlogic,a311d
- const: amlogic,g12b
@@ -168,6 +177,8 @@
- azw,gtking
- azw,gtking-pro
- bananapi,bpi-m2s
+ - dream,dreambox-one
+ - dream,dreambox-two
- hardkernel,odroid-go-ultra
- hardkernel,odroid-n2
- hardkernel,odroid-n2l
@@ -201,6 +212,18 @@
- amlogic,ad402
- const: amlogic,a1
+ - description: Boards with the Amlogic A4 A113L2 SoC
+ items:
+ - enum:
+ - amlogic,ba400
+ - const: amlogic,a4
+
+ - description: Boards with the Amlogic A5 A113X2 SoC
+ items:
+ - enum:
+ - amlogic,av400
+ - const: amlogic,a5
+
- description: Boards with the Amlogic C3 C302X/C308L SoC
items:
- enum:
diff --git a/Documentation/devicetree/bindings/arm/amlogic/analog-top.txt b/Documentation/devicetree/bindings/arm/amlogic/analog-top.txt
deleted file mode 100644
index 101dc21..0000000
--- a/Documentation/devicetree/bindings/arm/amlogic/analog-top.txt
+++ /dev/null
@@ -1,20 +0,0 @@
-Amlogic Meson8 and Meson8b "analog top" registers:
---------------------------------------------------
-
-The analog top registers contain information about the so-called
-"metal revision" (which encodes the "minor version") of the SoC.
-
-Required properties:
-- reg: the register range of the analog top registers
-- compatible: depending on the SoC this should be one of:
- - "amlogic,meson8-analog-top"
- - "amlogic,meson8b-analog-top"
- along with "syscon"
-
-
-Example:
-
- analog_top: analog-top@81a8 {
- compatible = "amlogic,meson8-analog-top", "syscon";
- reg = <0x81a8 0x14>;
- };
diff --git a/Documentation/devicetree/bindings/arm/amlogic/assist.txt b/Documentation/devicetree/bindings/arm/amlogic/assist.txt
deleted file mode 100644
index 7656812..0000000
--- a/Documentation/devicetree/bindings/arm/amlogic/assist.txt
+++ /dev/null
@@ -1,17 +0,0 @@
-Amlogic Meson6/Meson8/Meson8b assist registers:
------------------------------------------------
-
-The assist registers contain basic information about the SoC,
-for example the encoded SoC part number.
-
-Required properties:
-- reg: the register range of the assist registers
-- compatible: should be "amlogic,meson-mx-assist" along with "syscon"
-
-
-Example:
-
- assist: assist@7c00 {
- compatible = "amlogic,meson-mx-assist", "syscon";
- reg = <0x7c00 0x200>;
- };
diff --git a/Documentation/devicetree/bindings/arm/amlogic/bootrom.txt b/Documentation/devicetree/bindings/arm/amlogic/bootrom.txt
deleted file mode 100644
index 407e27f..0000000
--- a/Documentation/devicetree/bindings/arm/amlogic/bootrom.txt
+++ /dev/null
@@ -1,17 +0,0 @@
-Amlogic Meson6/Meson8/Meson8b bootrom:
---------------------------------------
-
-The bootrom register area can be used to access SoC specific
-information, such as the "misc version".
-
-Required properties:
-- reg: the register range of the bootrom registers
-- compatible: should be "amlogic,meson-mx-bootrom" along with "syscon"
-
-
-Example:
-
- bootrom: bootrom@d9040000 {
- compatible = "amlogic,meson-mx-bootrom", "syscon";
- reg = <0xd9040000 0x10000>;
- };
diff --git a/Documentation/devicetree/bindings/arm/amlogic/pmu.txt b/Documentation/devicetree/bindings/arm/amlogic/pmu.txt
deleted file mode 100644
index 72f8d08..0000000
--- a/Documentation/devicetree/bindings/arm/amlogic/pmu.txt
+++ /dev/null
@@ -1,18 +0,0 @@
-Amlogic Meson8 and Meson8b power-management-unit:
--------------------------------------------------
-
-The pmu is used to turn off and on different power domains of the SoCs
-This includes the power to the CPU cores.
-
-Required node properties:
-- compatible value : depending on the SoC this should be one of:
- "amlogic,meson8-pmu"
- "amlogic,meson8b-pmu"
-- reg : physical base address and the size of the registers window
-
-Example:
-
- pmu@c81000e4 {
- compatible = "amlogic,meson8b-pmu", "syscon";
- reg = <0xc81000e0 0x18>;
- };
diff --git a/Documentation/devicetree/bindings/arm/apm/scu.txt b/Documentation/devicetree/bindings/arm/apm/scu.txt
deleted file mode 100644
index b45be06..0000000
--- a/Documentation/devicetree/bindings/arm/apm/scu.txt
+++ /dev/null
@@ -1,17 +0,0 @@
-APM X-GENE SoC series SCU Registers
-
-This system clock unit contain various register that control block resets,
-clock enable/disables, clock divisors and other deepsleep registers.
-
-Properties:
- - compatible : should contain two values. First value must be:
- - "apm,xgene-scu"
- second value must be always "syscon".
-
- - reg : offset and length of the register set.
-
-Example :
- scu: system-clk-controller@17000000 {
- compatible = "apm,xgene-scu","syscon";
- reg = <0x0 0x17000000 0x0 0x400>;
- };
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-dummy-sink.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-dummy-sink.yaml
index c960c8e..08b89b6 100644
--- a/Documentation/devicetree/bindings/arm/arm,coresight-dummy-sink.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-dummy-sink.yaml
@@ -30,7 +30,7 @@
maintainers:
- Mike Leach <mike.leach@linaro.org>
- Suzuki K Poulose <suzuki.poulose@arm.com>
- - James Clark <james.clark@arm.com>
+ - James Clark <james.clark@linaro.org>
- Mao Jinlong <quic_jinlmao@quicinc.com>
- Hao Zhang <quic_hazha@quicinc.com>
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-dummy-source.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-dummy-source.yaml
index 6745b4c..d50a603 100644
--- a/Documentation/devicetree/bindings/arm/arm,coresight-dummy-source.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-dummy-source.yaml
@@ -29,7 +29,7 @@
maintainers:
- Mike Leach <mike.leach@linaro.org>
- Suzuki K Poulose <suzuki.poulose@arm.com>
- - James Clark <james.clark@arm.com>
+ - James Clark <james.clark@linaro.org>
- Mao Jinlong <quic_jinlmao@quicinc.com>
- Hao Zhang <quic_hazha@quicinc.com>
diff --git a/Documentation/devicetree/bindings/arm/arm,juno-fpga-apb-regs.yaml b/Documentation/devicetree/bindings/arm/arm,juno-fpga-apb-regs.yaml
new file mode 100644
index 0000000..ce5f2e1
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/arm,juno-fpga-apb-regs.yaml
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/arm,juno-fpga-apb-regs.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ARM Juno FPGA APB Registers
+
+maintainers:
+ - Sudeep Holla <sudeep.holla@arm.com>
+
+properties:
+ compatible:
+ items:
+ - const: arm,juno-fpga-apb-regs
+ - const: syscon
+ - const: simple-mfd
+
+ reg:
+ maxItems: 1
+
+ ranges: true
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 1
+
+patternProperties:
+ "^led@[0-9a-f]+,[0-9a-f]$":
+ $ref: /schemas/leds/register-bit-led.yaml#
+
+required:
+ - compatible
+ - reg
+ - ranges
+ - "#address-cells"
+ - "#size-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ syscon@10000 {
+ compatible = "arm,juno-fpga-apb-regs", "syscon", "simple-mfd";
+ reg = <0x010000 0x1000>;
+ ranges = <0x0 0x10000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ led@8,0 {
+ compatible = "register-bit-led";
+ reg = <0x08 0x04>;
+ offset = <0x08>;
+ mask = <0x01>;
+ label = "vexpress:0";
+ linux,default-trigger = "heartbeat";
+ default-state = "on";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/arm/aspeed/aspeed.yaml b/Documentation/devicetree/bindings/arm/aspeed/aspeed.yaml
index 749ee54..95113df 100644
--- a/Documentation/devicetree/bindings/arm/aspeed/aspeed.yaml
+++ b/Documentation/devicetree/bindings/arm/aspeed/aspeed.yaml
@@ -35,7 +35,10 @@
- ampere,mtjade-bmc
- aspeed,ast2500-evb
- asrock,e3c246d4i-bmc
+ - asrock,e3c256d4i-bmc
- asrock,romed8hm3-bmc
+ - asrock,spc621d8hm3-bmc
+ - asrock,x570d4u-bmc
- bytedance,g220a-bmc
- facebook,cmm-bmc
- facebook,minipack-bmc
@@ -74,15 +77,18 @@
- ampere,mtmitchell-bmc
- aspeed,ast2600-evb
- aspeed,ast2600-evb-a1
+ - asus,x4tf-bmc
- facebook,bletchley-bmc
- facebook,cloudripper-bmc
- facebook,elbert-bmc
- facebook,fuji-bmc
- facebook,greatlakes-bmc
+ - facebook,harma-bmc
- facebook,minerva-cmc
- facebook,yosemite4-bmc
- ibm,everest-bmc
- ibm,rainier-bmc
+ - ibm,system1-bmc
- ibm,tacoma-bmc
- inventec,starscream-bmc
- inventec,transformer-bmc
diff --git a/Documentation/devicetree/bindings/arm/atmel-sysregs.txt b/Documentation/devicetree/bindings/arm/atmel-sysregs.txt
index 67a66bf..7374beb 100644
--- a/Documentation/devicetree/bindings/arm/atmel-sysregs.txt
+++ b/Documentation/devicetree/bindings/arm/atmel-sysregs.txt
@@ -41,35 +41,6 @@
reg = <0xffffe800 0x200>;
};
-RAMC PHY Controller required properties:
-- compatible: Should be "microchip,sama7g5-ddr3phy", "syscon"
-- reg: Should contain registers location and length
-
-Example:
-
- ddr3phy: ddr3phy@e3804000 {
- compatible = "microchip,sama7g5-ddr3phy", "syscon";
- reg = <0xe3804000 0x1000>;
-};
-
-Special Function Registers (SFR)
-
-Special Function Registers (SFR) manage specific aspects of the integrated
-memory, bridge implementations, processor and other functionality not controlled
-elsewhere.
-
-required properties:
-- compatible: Should be "atmel,<chip>-sfr", "syscon" or
- "atmel,<chip>-sfrbu", "syscon"
- <chip> can be "sama5d3", "sama5d4" or "sama5d2".
- It also can be "microchip,sam9x60-sfr", "syscon".
-- reg: Should contain registers location and length
-
- sfr@f0038000 {
- compatible = "atmel,sama5d3-sfr", "syscon";
- reg = <0xf0038000 0x60>;
- };
-
Security Module (SECUMOD)
The Security Module macrocell provides all necessary secure functions to avoid
diff --git a/Documentation/devicetree/bindings/arm/axis.txt b/Documentation/devicetree/bindings/arm/axis.txt
index ae345e1..ebd33a8 100644
--- a/Documentation/devicetree/bindings/arm/axis.txt
+++ b/Documentation/devicetree/bindings/arm/axis.txt
@@ -7,22 +7,6 @@
Required root node properties:
- compatible = "axis,artpec6";
-ARTPEC-6 System Controller
---------------------------
-
-The ARTPEC-6 has a system controller with mixed functions controlling DMA, PCIe
-and resets.
-
-Required properties:
-- compatible: "axis,artpec6-syscon", "syscon"
-- reg: Address and length of the register bank.
-
-Example:
- syscon {
- compatible = "axis,artpec6-syscon", "syscon";
- reg = <0xf8000000 0x48>;
- };
-
ARTPEC-6 Development board:
---------------------------
Required root node properties:
diff --git a/Documentation/devicetree/bindings/arm/bcm/bcm2835.yaml b/Documentation/devicetree/bindings/arm/bcm/bcm2835.yaml
index 162a39d..e4ff71f 100644
--- a/Documentation/devicetree/bindings/arm/bcm/bcm2835.yaml
+++ b/Documentation/devicetree/bindings/arm/bcm/bcm2835.yaml
@@ -23,6 +23,12 @@
- raspberrypi,4-model-b
- const: brcm,bcm2711
+ - description: BCM2712 based Boards
+ items:
+ - enum:
+ - raspberrypi,5-model-b
+ - const: brcm,bcm2712
+
- description: BCM2835 based Boards
items:
- enum:
diff --git a/Documentation/devicetree/bindings/arm/bcm/brcm,bcm4708.yaml b/Documentation/devicetree/bindings/arm/bcm/brcm,bcm4708.yaml
index 4cc4e67..d925e7a 100644
--- a/Documentation/devicetree/bindings/arm/bcm/brcm,bcm4708.yaml
+++ b/Documentation/devicetree/bindings/arm/bcm/brcm,bcm4708.yaml
@@ -53,6 +53,7 @@
- description: BCM4709 based boards
items:
- enum:
+ - asus,rt-ac3200
- asus,rt-ac87u
- buffalo,wxr-1900dhp
- linksys,ea9200
@@ -67,6 +68,7 @@
items:
- enum:
- asus,rt-ac3100
+ - asus,rt-ac5300
- asus,rt-ac88u
- dlink,dir-885l
- dlink,dir-890l
diff --git a/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml b/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml
index 39e3c24..1f84407 100644
--- a/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml
+++ b/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml
@@ -46,6 +46,30 @@
- compatible
- "#clock-cells"
+ gpio:
+ type: object
+ additionalProperties: false
+
+ properties:
+ compatible:
+ const: raspberrypi,firmware-gpio
+
+ gpio-controller: true
+
+ "#gpio-cells":
+ const: 2
+ description:
+ The first cell is the pin number, and the second cell is used to
+ specify the gpio polarity (GPIO_ACTIVE_HIGH or GPIO_ACTIVE_LOW).
+
+ gpio-line-names:
+ minItems: 8
+
+ required:
+ - compatible
+ - gpio-controller
+ - "#gpio-cells"
+
reset:
type: object
additionalProperties: false
@@ -96,6 +120,12 @@
#clock-cells = <1>;
};
+ expgpio: gpio {
+ compatible = "raspberrypi,firmware-gpio";
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
reset: reset {
compatible = "raspberrypi,firmware-reset";
#reset-cells = <1>;
diff --git a/Documentation/devicetree/bindings/arm/cpu-enable-method/al,alpine-smp b/Documentation/devicetree/bindings/arm/cpu-enable-method/al,alpine-smp
index 35e5afb..cc7b140 100644
--- a/Documentation/devicetree/bindings/arm/cpu-enable-method/al,alpine-smp
+++ b/Documentation/devicetree/bindings/arm/cpu-enable-method/al,alpine-smp
@@ -27,16 +27,6 @@
- reg : Offset and length of the register set for the device
-* Alpine System-Fabric Service Registers
-
-The System-Fabric Service Registers allow various operation on CPU and
-system fabric, like powering CPUs off.
-
-Properties:
-- compatible : Should contain "al,alpine-sysfabric-service" and "syscon".
-- reg : Offset and length of the register set for the device
-
-
Example:
cpus {
diff --git a/Documentation/devicetree/bindings/arm/cpus.yaml b/Documentation/devicetree/bindings/arm/cpus.yaml
index cc5a21b..f308ff6 100644
--- a/Documentation/devicetree/bindings/arm/cpus.yaml
+++ b/Documentation/devicetree/bindings/arm/cpus.yaml
@@ -147,6 +147,7 @@
- arm,cortex-a710
- arm,cortex-a715
- arm,cortex-a720
+ - arm,cortex-a725
- arm,cortex-m0
- arm,cortex-m0+
- arm,cortex-m1
@@ -161,10 +162,15 @@
- arm,cortex-x2
- arm,cortex-x3
- arm,cortex-x4
+ - arm,cortex-x925
- arm,neoverse-e1
- arm,neoverse-n1
- arm,neoverse-n2
+ - arm,neoverse-n3
- arm,neoverse-v1
+ - arm,neoverse-v2
+ - arm,neoverse-v3
+ - arm,neoverse-v3ae
- brcm,brahma-b15
- brcm,brahma-b53
- brcm,vulcan
diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,imx7ulp-sim.yaml b/Documentation/devicetree/bindings/arm/freescale/fsl,imx7ulp-sim.yaml
index 526f508..bd39cf1 100644
--- a/Documentation/devicetree/bindings/arm/freescale/fsl,imx7ulp-sim.yaml
+++ b/Documentation/devicetree/bindings/arm/freescale/fsl,imx7ulp-sim.yaml
@@ -7,7 +7,9 @@
title: Freescale i.MX7ULP System Integration Module
maintainers:
- - Anson Huang <anson.huang@nxp.com>
+ - Shawn Guo <shawnguo@kernel.org>
+ - Sascha Hauer <s.hauer@pengutronix.de>
+ - Fabio Estevam <festevam@gmail.com>
description: |
The system integration module (SIM) provides system control and chip configuration
diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,vf610-mscm-cpucfg.txt b/Documentation/devicetree/bindings/arm/freescale/fsl,vf610-mscm-cpucfg.txt
deleted file mode 100644
index 44aa3c4..0000000
--- a/Documentation/devicetree/bindings/arm/freescale/fsl,vf610-mscm-cpucfg.txt
+++ /dev/null
@@ -1,14 +0,0 @@
-Freescale Vybrid Miscellaneous System Control - CPU Configuration
-
-The MSCM IP contains multiple sub modules, this binding describes the first
-block of registers which contains CPU configuration information.
-
-Required properties:
-- compatible: "fsl,vf610-mscm-cpucfg", "syscon"
-- reg: the register range of the MSCM CPU configuration registers
-
-Example:
- mscm_cpucfg: cpucfg@40001000 {
- compatible = "fsl,vf610-mscm-cpucfg", "syscon";
- reg = <0x40001000 0x800>;
- }
diff --git a/Documentation/devicetree/bindings/arm/fsl.yaml b/Documentation/devicetree/bindings/arm/fsl.yaml
index 0027201..80747d7 100644
--- a/Documentation/devicetree/bindings/arm/fsl.yaml
+++ b/Documentation/devicetree/bindings/arm/fsl.yaml
@@ -8,7 +8,6 @@
maintainers:
- Shawn Guo <shawnguo@kernel.org>
- - Li Yang <leoyang.li@nxp.com>
properties:
$nodename:
@@ -363,6 +362,12 @@
- const: gw,ventana
- const: fsl,imx6q
+ - description: i.MX6Q Kontron SMARC-sAMX6i on SMARC Eval Carrier 2.0
+ items:
+ - const: kontron,imx6q-samx6i-ads2
+ - const: kontron,imx6q-samx6i
+ - const: fsl,imx6q
+
- description: i.MX6Q PHYTEC phyBOARD-Mira
items:
- enum:
@@ -544,6 +549,12 @@
- const: gw,ventana
- const: fsl,imx6dl
+ - description: i.MX6DL Kontron SMARC-sAMX6i on SMARC Eval Carrier 2.0
+ items:
+ - const: kontron,imx6dl-samx6i-ads2
+ - const: kontron,imx6dl-samx6i
+ - const: fsl,imx6dl
+
- description: i.MX6DL PHYTEC phyBOARD-Mira
items:
- enum:
@@ -813,6 +824,14 @@
- const: tq,imx6ull-tqma6ull2l # MCIMX6Y2, LGA SoM variant
- const: fsl,imx6ull
+ - description: Seeed Stuido i.MX6ULL SoM on dev boards
+ items:
+ - enum:
+ - seeed,imx6ull-seeed-npi-emmc
+ - seeed,imx6ull-seeed-npi-nand
+ - const: seeed,imx6ull-seeed-npi
+ - const: fsl,imx6ull
+
- description: i.MX6ULZ based Boards
items:
- enum:
@@ -938,6 +957,13 @@
- prt,prt8mm # i.MX8MM Protonic PRT8MM Board
- const: fsl,imx8mm
+ - description: Compulab i.MX8MM UCM SoM based boards
+ items:
+ - enum:
+ - compulab,imx8mm-iot-gateway # i.MX8MM Compulab IoT-Gateway
+ - const: compulab,imx8mm-ucm-som # i.MX8MM Compulab UCM SoM
+ - const: fsl,imx8mm
+
- description: Emtop i.MX8MM based Boards
items:
- const: ees,imx8mm-emtop-baseboard # i.MX8MM Emtop SoM on i.MX8M Mini Baseboard V1
@@ -1050,6 +1076,7 @@
- enum:
- beacon,imx8mp-beacon-kit # i.MX8MP Beacon Development Kit
- dmo,imx8mp-data-modul-edm-sbc # i.MX8MP eDM SBC
+ - emcraft,imx8mp-navqp # i.MX8MP Emcraft Systems NavQ+ Kit
- fsl,imx8mp-evk # i.MX8MP EVK Board
- gateworks,imx8mp-gw71xx-2x # i.MX8MP Gateworks Board
- gateworks,imx8mp-gw72xx-2x # i.MX8MP Gateworks Board
@@ -1136,8 +1163,9 @@
version as an industrial computing device.
items:
- enum:
- - tq,imx8mp-tqma8mpql-mba8mpxl # TQ-Systems GmbH i.MX8MP TQMa8MPQL SOM on MBa8MPxL
- - const: tq,imx8mp-tqma8mpql # TQ-Systems GmbH i.MX8MP TQMa8MPQL SOM
+ - tq,imx8mp-tqma8mpql-mba8mpxl # TQ-Systems GmbH i.MX8MP TQMa8MPQL SOM on MBa8MPxL
+ - tq,imx8mp-tqma8mpql-mba8mp-ras314 # TQ-Systems GmbH i.MX8MP TQMa8MPQL SOM on MBa8MP-RAS314
+ - const: tq,imx8mp-tqma8mpql # TQ-Systems GmbH i.MX8MP TQMa8MPQL SOM
- const: fsl,imx8mp
- description: i.MX8MQ based Boards
@@ -1218,7 +1246,6 @@
- enum:
- einfochips,imx8qxp-ai_ml # i.MX8QXP AI_ML Board
- fsl,imx8qxp-mek # i.MX8QXP MEK Board
- - toradex,colibri-imx8x # Colibri iMX8X Modules
- const: fsl,imx8qxp
- description: i.MX8DXL based Boards
@@ -1227,7 +1254,7 @@
- fsl,imx8dxl-evk # i.MX8DXL EVK Board
- const: fsl,imx8dxl
- - description: i.MX8QXP Boards with Toradex Colibri iMX8X Modules
+ - description: i.MX8QXP/i.MX8DX Boards with Toradex Colibri iMX8X Modules
items:
- enum:
- toradex,colibri-imx8x-aster # Colibri iMX8X Module on Aster Board
@@ -1235,7 +1262,9 @@
- toradex,colibri-imx8x-iris # Colibri iMX8X Module on Iris Board
- toradex,colibri-imx8x-iris-v2 # Colibri iMX8X Module on Iris Board V2
- const: toradex,colibri-imx8x
- - const: fsl,imx8qxp
+ - enum:
+ - fsl,imx8qxp
+ - fsl,imx8dx
- description:
TQMa8Xx is a series of SOM featuring NXP i.MX8X system-on-chip
@@ -1262,9 +1291,16 @@
- description: i.MX93 based Boards
items:
- enum:
+ - fsl,imx93-9x9-qsb # i.MX93 9x9 QSB Board
- fsl,imx93-11x11-evk # i.MX93 11x11 EVK Board
- const: fsl,imx93
+ - description: i.MX95 based Boards
+ items:
+ - enum:
+ - fsl,imx95-19x19-evk # i.MX95 19x19 EVK Board
+ - const: fsl,imx95
+
- description: i.MXRT1050 based Boards
items:
- enum:
@@ -1536,6 +1572,12 @@
- nxp,s32g274a-rdb2
- const: nxp,s32g2
+ - description: S32G3 based Boards
+ items:
+ - enum:
+ - nxp,s32g399a-rdb3
+ - const: nxp,s32g3
+
- description: S32V234 based Boards
items:
- enum:
diff --git a/Documentation/devicetree/bindings/arm/keystone/ti,sci.yaml b/Documentation/devicetree/bindings/arm/keystone/ti,sci.yaml
index c24ad09..25a2b42 100644
--- a/Documentation/devicetree/bindings/arm/keystone/ti,sci.yaml
+++ b/Documentation/devicetree/bindings/arm/keystone/ti,sci.yaml
@@ -20,7 +20,7 @@
initialized early into boot process and provides services to Operating Systems
on multiple processors including ones running Linux.
- See http://processors.wiki.ti.com/index.php/TISCI for protocol definition.
+ See https://software-dl.ti.com/tisci/esd/latest/index.html for protocol definition.
The TI-SCI node describes the Texas Instrument's System Controller entity node.
This parent node may optionally have additional children nodes which describe
@@ -61,10 +61,6 @@
mboxes:
minItems: 2
- ti,system-reboot-controller:
- description: Determines If system reboot can be triggered by SoC reboot
- type: boolean
-
ti,host-id:
$ref: /schemas/types.yaml#/definitions/uint32
description: |
@@ -94,7 +90,6 @@
- |
pmmc: system-controller@2921800 {
compatible = "ti,k2g-sci";
- ti,system-reboot-controller;
mbox-names = "rx", "tx";
mboxes = <&msgmgr 5 2>,
<&msgmgr 0 0>;
diff --git a/Documentation/devicetree/bindings/arm/marvell/armada-37xx.txt b/Documentation/devicetree/bindings/arm/marvell/armada-37xx.txt
deleted file mode 100644
index 29fa93d..0000000
--- a/Documentation/devicetree/bindings/arm/marvell/armada-37xx.txt
+++ /dev/null
@@ -1,32 +0,0 @@
-Power management
-----------------
-
-For power management (particularly DVFS and AVS), the North Bridge
-Power Management component is needed:
-
-Required properties:
-- compatible : should contain "marvell,armada-3700-nb-pm", "syscon";
-- reg : the register start and length for the North Bridge
- Power Management
-
-Example:
-
-nb_pm: syscon@14000 {
- compatible = "marvell,armada-3700-nb-pm", "syscon";
- reg = <0x14000 0x60>;
-}
-
-AVS
----
-
-For AVS an other component is needed:
-
-Required properties:
-- compatible : should contain "marvell,armada-3700-avs", "syscon";
-- reg : the register start and length for the AVS
-
-Example:
-avs: avs@11500 {
- compatible = "marvell,armada-3700-avs", "syscon";
- reg = <0x11500 0x40>;
-}
diff --git a/Documentation/devicetree/bindings/arm/marvell/armada-7k-8k.yaml b/Documentation/devicetree/bindings/arm/marvell/armada-7k-8k.yaml
index 16d2e13..538d91b 100644
--- a/Documentation/devicetree/bindings/arm/marvell/armada-7k-8k.yaml
+++ b/Documentation/devicetree/bindings/arm/marvell/armada-7k-8k.yaml
@@ -82,4 +82,22 @@
- const: marvell,armada-ap807-quad
- const: marvell,armada-ap807
+ - description:
+ SolidRun CN9130 SoM based single-board computers
+ items:
+ - enum:
+ - solidrun,cn9130-clearfog-base
+ - solidrun,cn9130-clearfog-pro
+ - solidrun,cn9131-solidwan
+ - const: solidrun,cn9130-sr-som
+ - const: marvell,cn9130
+
+ - description:
+ SolidRun CN9132 COM-Express Type 7 based single-board computers
+ items:
+ - enum:
+ - solidrun,cn9132-clearfog
+ - const: solidrun,cn9132-sr-cex7
+ - const: marvell,cn9130
+
additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/marvell/marvell,dove.txt b/Documentation/devicetree/bindings/arm/marvell/marvell,dove.txt
index aaaf64c..e10e852 100644
--- a/Documentation/devicetree/bindings/arm/marvell/marvell,dove.txt
+++ b/Documentation/devicetree/bindings/arm/marvell/marvell,dove.txt
@@ -5,18 +5,3 @@
Required root node property:
- compatible: must contain "marvell,dove";
-
-* Global Configuration registers
-
-Global Configuration registers of Dove SoC are shared by a syscon node.
-
-Required properties:
-- compatible: must contain "marvell,dove-global-config" and "syscon".
-- reg: base address and size of the Global Configuration registers.
-
-Example:
-
-gconf: global-config@e802c {
- compatible = "marvell,dove-global-config", "syscon";
- reg = <0xe802c 0x14>;
-};
diff --git a/Documentation/devicetree/bindings/arm/mediatek.yaml b/Documentation/devicetree/bindings/arm/mediatek.yaml
index 09f9ffd..1d4bb50 100644
--- a/Documentation/devicetree/bindings/arm/mediatek.yaml
+++ b/Documentation/devicetree/bindings/arm/mediatek.yaml
@@ -85,12 +85,15 @@
- const: mediatek,mt7629
- items:
- enum:
+ - cudy,wr3000-v1
+ - openwrt,one
- xiaomi,ax3000t
- const: mediatek,mt7981b
- items:
- enum:
- acelink,ew-7886cax
- bananapi,bpi-r3
+ - bananapi,bpi-r3mini
- mediatek,mt7986a-rfb
- const: mediatek,mt7986a
- items:
@@ -293,6 +296,13 @@
- const: google,tentacruel-sku327683
- const: google,tentacruel
- const: mediatek,mt8186
+ - description: Google Voltorb (Acer Chromebook 311 C723/C732T)
+ items:
+ - enum:
+ - google,voltorb-sku589824
+ - google,voltorb-sku589825
+ - const: google,voltorb
+ - const: mediatek,mt8186
- items:
- enum:
- mediatek,mt8186-evb
@@ -342,6 +352,14 @@
- const: google,tomato-rev3
- const: google,tomato
- const: mediatek,mt8195
+ - description: HP Dojo sku1, 3, 5, 7 (HP Chromebook x360 13b-ca0002sa)
+ items:
+ - const: google,dojo-sku7
+ - const: google,dojo-sku5
+ - const: google,dojo-sku3
+ - const: google,dojo-sku1
+ - const: google,dojo
+ - const: mediatek,mt8195
- items:
- enum:
- mediatek,mt8195-demo
@@ -353,6 +371,12 @@
- const: mediatek,mt8365
- items:
- enum:
+ - mediatek,mt8390-evk
+ - const: mediatek,mt8390
+ - const: mediatek,mt8188
+ - items:
+ - enum:
+ - kontron,3-5-sbc-i1200
- mediatek,mt8395-evk
- radxa,nio-12l
- const: mediatek,mt8395
diff --git a/Documentation/devicetree/bindings/arm/pmu.yaml b/Documentation/devicetree/bindings/arm/pmu.yaml
index 99b5e95..528544d 100644
--- a/Documentation/devicetree/bindings/arm/pmu.yaml
+++ b/Documentation/devicetree/bindings/arm/pmu.yaml
@@ -53,14 +53,20 @@
- arm,cortex-a710-pmu
- arm,cortex-a715-pmu
- arm,cortex-a720-pmu
+ - arm,cortex-a725-pmu
- arm,cortex-x1-pmu
- arm,cortex-x2-pmu
- arm,cortex-x3-pmu
- arm,cortex-x4-pmu
+ - arm,cortex-x925-pmu
- arm,neoverse-e1-pmu
- arm,neoverse-n1-pmu
- arm,neoverse-n2-pmu
+ - arm,neoverse-n3-pmu
- arm,neoverse-v1-pmu
+ - arm,neoverse-v2-pmu
+ - arm,neoverse-v3-pmu
+ - arm,neoverse-v3ae-pmu
- brcm,vulcan-pmu
- cavium,thunder-pmu
- nvidia,denver-pmu
diff --git a/Documentation/devicetree/bindings/arm/qcom,coresight-tpda.yaml b/Documentation/devicetree/bindings/arm/qcom,coresight-tpda.yaml
index ea3c5db..76163abe 100644
--- a/Documentation/devicetree/bindings/arm/qcom,coresight-tpda.yaml
+++ b/Documentation/devicetree/bindings/arm/qcom,coresight-tpda.yaml
@@ -66,13 +66,11 @@
- const: apb_pclk
in-ports:
- type: object
description: |
Input connections from TPDM to TPDA
$ref: /schemas/graph.yaml#/properties/ports
out-ports:
- type: object
description: |
Output connections from the TPDA to legacy CoreSight trace bus.
$ref: /schemas/graph.yaml#/properties/ports
@@ -97,33 +95,31 @@
# minimum tpda definition.
- |
tpda@6004000 {
- compatible = "qcom,coresight-tpda", "arm,primecell";
- reg = <0x6004000 0x1000>;
+ compatible = "qcom,coresight-tpda", "arm,primecell";
+ reg = <0x6004000 0x1000>;
- clocks = <&aoss_qmp>;
- clock-names = "apb_pclk";
+ clocks = <&aoss_qmp>;
+ clock-names = "apb_pclk";
- in-ports {
- #address-cells = <1>;
- #size-cells = <0>;
+ in-ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
port@0 {
reg = <0>;
tpda_qdss_0_in_tpdm_dcc: endpoint {
- remote-endpoint =
- <&tpdm_dcc_out_tpda_qdss_0>;
- };
+ remote-endpoint = <&tpdm_dcc_out_tpda_qdss_0>;
+ };
};
};
- out-ports {
- port {
- tpda_qdss_out_funnel_in0: endpoint {
- remote-endpoint =
- <&funnel_in0_in_tpda_qdss>;
- };
+ out-ports {
+ port {
+ tpda_qdss_out_funnel_in0: endpoint {
+ remote-endpoint = <&funnel_in0_in_tpda_qdss>;
};
- };
+ };
+ };
};
...
diff --git a/Documentation/devicetree/bindings/arm/qcom.yaml b/Documentation/devicetree/bindings/arm/qcom.yaml
index 66beaac..f08e13b 100644
--- a/Documentation/devicetree/bindings/arm/qcom.yaml
+++ b/Documentation/devicetree/bindings/arm/qcom.yaml
@@ -42,6 +42,7 @@
msm8996
msm8998
qcs404
+ qcs8550
qcm2290
qcm6490
qdu1000
@@ -96,6 +97,7 @@
- items:
- enum:
- qcom,apq8016-sbc
+ - schneider,apq8016-hmibsc
- const: qcom,apq8016
- items:
@@ -104,6 +106,7 @@
- huawei,sturgeon
- lg,lenok
- samsung,matisse-wifi
+ - samsung,milletwifi
- const: qcom,apq8026
- items:
@@ -137,6 +140,8 @@
- microsoft,dempsey
- microsoft,makepeace
- microsoft,moneypenny
+ - motorola,falcon
+ - samsung,ms013g
- samsung,s3ve3g
- const: qcom,msm8226
@@ -174,6 +179,7 @@
- items:
- enum:
- lge,hammerhead
+ - samsung,hlte
- sony,xperia-amami
- sony,xperia-honami
- const: qcom,msm8974
@@ -181,16 +187,21 @@
- items:
- enum:
- fairphone,fp2
+ - htc,m8
- oneplus,bacon
- samsung,klte
+ - sony,xperia-aries
- sony,xperia-castor
+ - sony,xperia-leo
- const: qcom,msm8974pro
- const: qcom,msm8974
- items:
- - const: qcom,msm8916-mtp
- - const: qcom,msm8916-mtp/1
- - const: qcom,msm8916
+ - enum:
+ - samsung,kltechn
+ - const: samsung,klte
+ - const: qcom,msm8974pro
+ - const: qcom,msm8974
- items:
- enum:
@@ -199,7 +210,14 @@
- asus,z00l
- gplus,fl8005a
- huawei,g7
+ - lg,c50
+ - lg,m216
- longcheer,l8910
+ - longcheer,l8150
+ - motorola,harpia
+ - motorola,osprey
+ - motorola,surnia
+ - qcom,msm8916-mtp
- samsung,a3u-eur
- samsung,a5u-eur
- samsung,e5
@@ -221,11 +239,6 @@
- const: qcom,msm8916
- items:
- - const: longcheer,l8150
- - const: qcom,msm8916-v1-qrd/9-v1
- - const: qcom,msm8916
-
- - items:
- enum:
- motorola,potter
- xiaomi,daisy
@@ -315,6 +328,7 @@
- items:
- enum:
- qcom,ipq5018-rdp432-c2
+ - tplink,archer-ax55-v1
- const: qcom,ipq5018
- items:
@@ -365,6 +379,7 @@
- fairphone,fp5
- qcom,qcm6490-idp
- qcom,qcs6490-rb3gen2
+ - shift,otter
- const: qcom,qcm6490
- description: Qualcomm Technologies, Inc. Distributed Unit 1000 platform
@@ -801,6 +816,7 @@
- items:
- enum:
+ - lenovo,tbx605f
- motorola,ali
- const: qcom,sdm450
@@ -882,6 +898,7 @@
- items:
- enum:
- qcom,sa8775p-ride
+ - qcom,sa8775p-ride-r3
- const: qcom,sa8775p
- items:
@@ -1003,16 +1020,28 @@
- qcom,sm8550-hdk
- qcom,sm8550-mtp
- qcom,sm8550-qrd
+ - samsung,q5q
+ - sony,pdx234
- const: qcom,sm8550
- items:
- enum:
+ - qcom,qcs8550-aim300-aiot
+ - const: qcom,qcs8550-aim300
+ - const: qcom,qcs8550
+ - const: qcom,sm8550
+
+ - items:
+ - enum:
+ - qcom,sm8650-hdk
- qcom,sm8650-mtp
- qcom,sm8650-qrd
- const: qcom,sm8650
- items:
- enum:
+ - asus,vivobook-s15
+ - lenovo,yoga-slim7x
- qcom,x1e80100-crd
- qcom,x1e80100-qcp
- const: qcom,x1e80100
diff --git a/Documentation/devicetree/bindings/arm/rockchip.yaml b/Documentation/devicetree/bindings/arm/rockchip.yaml
index fcf7316..1ef09fb 100644
--- a/Documentation/devicetree/bindings/arm/rockchip.yaml
+++ b/Documentation/devicetree/bindings/arm/rockchip.yaml
@@ -49,6 +49,11 @@
- anbernic,rg-arc-s
- const: rockchip,rk3566
+ - description: ArmSoM Sige7 board
+ items:
+ - const: armsom,sige7
+ - const: rockchip,rk3588
+
- description: Asus Tinker board
items:
- const: asus,rk3288-tinker
@@ -198,6 +203,13 @@
- const: firefly,rk3568-roc-pc
- const: rockchip,rk3568
+ - description: Forlinx FET3588-C SoM
+ items:
+ - enum:
+ - forlinx,ok3588-c
+ - const: forlinx,fet3588-c
+ - const: rockchip,rk3588
+
- description: FriendlyElec NanoPi R2 series boards
items:
- enum:
@@ -236,6 +248,18 @@
- const: friendlyarm,nanopc-t6
- const: rockchip,rk3588
+ - description: FriendlyElec CM3588-based boards
+ items:
+ - enum:
+ - friendlyarm,cm3588-nas
+ - const: friendlyarm,cm3588
+ - const: rockchip,rk3588
+
+ - description: GameForce Chi
+ items:
+ - const: gameforce,chi
+ - const: rockchip,rk3326
+
- description: GeekBuying GeekBox
items:
- const: geekbuying,geekbox
@@ -610,6 +634,11 @@
- const: mqmaker,miqi
- const: rockchip,rk3288
+ - description: Neardi LBA3368
+ items:
+ - const: neardi,lba3368
+ - const: rockchip,rk3368
+
- description: Netxeon R89 board
items:
- const: netxeon,r89
@@ -631,7 +660,7 @@
- const: phytec,rk3288-phycore-som
- const: rockchip,rk3288
- - description: Pine64 PinebookPro
+ - description: Pine64 Pinebook Pro
items:
- const: pine64,pinebook-pro
- const: rockchip,rk3399
@@ -644,7 +673,7 @@
- const: pine64,pinenote
- const: rockchip,rk3566
- - description: Pine64 PinePhonePro
+ - description: Pine64 PinePhone Pro
items:
- const: pine64,pinephone-pro
- const: rockchip,rk3399
@@ -682,7 +711,7 @@
- const: pine64,quartzpro64
- const: rockchip,rk3588
- - description: Pine64 SoQuartz SoM
+ - description: Pine64 SOQuartz
items:
- enum:
- pine64,soquartz-blade
@@ -700,12 +729,17 @@
- powkiddy,x55
- const: rockchip,rk3566
+ - description: Protonic MECSBC board
+ items:
+ - const: prt,mecsbc
+ - const: rockchip,rk3568
+
- description: QNAP TS-433-4G 4-Bay NAS
items:
- const: qnap,ts433
- const: rockchip,rk3568
- - description: Radxa Compute Module 3(CM3)
+ - description: Radxa Compute Module 3 (CM3)
items:
- enum:
- radxa,cm3-io
@@ -767,26 +801,53 @@
- const: radxa,rockpis
- const: rockchip,rk3308
- - description: Radxa Rock2 Square
+ - description: Radxa Rock 2 Square
items:
- const: radxa,rock2-square
- const: rockchip,rk3288
- - description: Radxa ROCK3 Model A
+ - description: Radxa ROCK 3A
items:
- const: radxa,rock3a
- const: rockchip,rk3568
- - description: Radxa ROCK 5 Model A
+ - description: Radxa ROCK 3B
+ items:
+ - const: radxa,rock-3b
+ - const: rockchip,rk3568
+
+ - description: Radxa ROCK 3C
+ items:
+ - const: radxa,rock-3c
+ - const: rockchip,rk3566
+
+ - description: Radxa ROCK 5 ITX
+ items:
+ - const: radxa,rock-5-itx
+ - const: rockchip,rk3588
+
+ - description: Radxa ROCK 5A
items:
- const: radxa,rock-5a
- const: rockchip,rk3588s
- - description: Radxa ROCK 5 Model B
+ - description: Radxa ROCK 5B
items:
- const: radxa,rock-5b
- const: rockchip,rk3588
+ - description: Radxa ROCK S0
+ items:
+ - const: radxa,rock-s0
+ - const: rockchip,rk3308
+
+ - description: Radxa ZERO 3W/3E
+ items:
+ - enum:
+ - radxa,zero-3e
+ - radxa,zero-3w
+ - const: rockchip,rk3566
+
- description: Rikomagic MK808 v1
items:
- const: rikomagic,mk808
@@ -927,6 +988,19 @@
- const: turing,rk1
- const: rockchip,rk3588
+ - description: WolfVision PF5 mainboard
+ items:
+ - const: wolfvision,rk3568-pf5
+ - const: rockchip,rk3568
+
+ - description: Xunlong Orange Pi 3B
+ items:
+ - enum:
+ - xunlong,orangepi-3b-v1.1
+ - xunlong,orangepi-3b-v2.1
+ - const: xunlong,orangepi-3b
+ - const: rockchip,rk3566
+
- description: Xunlong Orange Pi 5 Plus
items:
- const: xunlong,orangepi-5-plus
diff --git a/Documentation/devicetree/bindings/arm/rtsm-dcscb.txt b/Documentation/devicetree/bindings/arm/rtsm-dcscb.txt
deleted file mode 100644
index 3b8fbf3..0000000
--- a/Documentation/devicetree/bindings/arm/rtsm-dcscb.txt
+++ /dev/null
@@ -1,19 +0,0 @@
-ARM Dual Cluster System Configuration Block
--------------------------------------------
-
-The Dual Cluster System Configuration Block (DCSCB) provides basic
-functionality for controlling clocks, resets and configuration pins in
-the Dual Cluster System implemented by the Real-Time System Model (RTSM).
-
-Required properties:
-
-- compatible : should be "arm,rtsm,dcscb"
-
-- reg : physical base address and the size of the registers window
-
-Example:
-
- dcscb@60000000 {
- compatible = "arm,rtsm,dcscb";
- reg = <0x60000000 0x1000>;
- };
diff --git a/Documentation/devicetree/bindings/arm/spear-misc.txt b/Documentation/devicetree/bindings/arm/spear-misc.txt
deleted file mode 100644
index e404e25..0000000
--- a/Documentation/devicetree/bindings/arm/spear-misc.txt
+++ /dev/null
@@ -1,9 +0,0 @@
-SPEAr Misc configuration
-===========================
-SPEAr SOCs have some miscellaneous registers which are used to configure
-few properties of different peripheral controllers.
-
-misc node required properties:
-
-- compatible Should be "st,spear1340-misc", "syscon".
-- reg: Address range of misc space up to 8K
diff --git a/Documentation/devicetree/bindings/arm/stm32/st,mlahb.yaml b/Documentation/devicetree/bindings/arm/stm32/st,mlahb.yaml
index d2dce23..3e99634 100644
--- a/Documentation/devicetree/bindings/arm/stm32/st,mlahb.yaml
+++ b/Documentation/devicetree/bindings/arm/stm32/st,mlahb.yaml
@@ -54,11 +54,10 @@
examples:
- |
- mlahb: ahb@38000000 {
+ ahb {
compatible = "st,mlahb", "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
- reg = <0x10000000 0x40000>;
ranges;
dma-ranges = <0x00000000 0x38000000 0x10000>,
<0x10000000 0x10000000 0x60000>,
diff --git a/Documentation/devicetree/bindings/arm/stm32/stm32.yaml b/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
index bc2f433..5809994 100644
--- a/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
+++ b/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
@@ -59,6 +59,12 @@
- prt,prtt1s # Protonic PRTT1S
- const: st,stm32mp151
+ - description: DH STM32MP135 DHCOR SoM based Boards
+ items:
+ - const: dh,stm32mp135f-dhcor-dhsbc
+ - const: dh,stm32mp135f-dhcor-som
+ - const: st,stm32mp135
+
- description: DH STM32MP151 DHCOR SoM based Boards
items:
- const: dh,stm32mp151a-dhcor-testbench
diff --git a/Documentation/devicetree/bindings/arm/sunxi.yaml b/Documentation/devicetree/bindings/arm/sunxi.yaml
index 09d835d..09dc6f4 100644
--- a/Documentation/devicetree/bindings/arm/sunxi.yaml
+++ b/Documentation/devicetree/bindings/arm/sunxi.yaml
@@ -56,6 +56,21 @@
- const: anbernic,rg-nano
- const: allwinner,sun8i-v3s
+ - description: Anbernic RG35XX (2024)
+ items:
+ - const: anbernic,rg35xx-2024
+ - const: allwinner,sun50i-h700
+
+ - description: Anbernic RG35XX Plus
+ items:
+ - const: anbernic,rg35xx-plus
+ - const: allwinner,sun50i-h700
+
+ - description: Anbernic RG35XX H
+ items:
+ - const: anbernic,rg35xx-h
+ - const: allwinner,sun50i-h700
+
- description: Amarula A64 Relic
items:
- const: amarula,a64-relic
@@ -693,12 +708,12 @@
- const: olimex,a64-teres-i
- const: allwinner,sun50i-a64
- - description: Pine64
+ - description: Pine64 PINE A64
items:
- const: pine64,pine64
- const: allwinner,sun50i-a64
- - description: Pine64+
+ - description: Pine64 PINE A64+
items:
- const: pine64,pine64-plus
- const: allwinner,sun50i-a64
@@ -709,17 +724,17 @@
- const: sochip,s3
- const: allwinner,sun8i-v3
- - description: Pine64 PineH64 model A
+ - description: Pine64 PINE H64 Model A
items:
- const: pine64,pine-h64
- const: allwinner,sun50i-h6
- - description: Pine64 PineH64 model B
+ - description: Pine64 PINE H64 Model B
items:
- const: pine64,pine-h64-model-b
- const: allwinner,sun50i-h6
- - description: Pine64 LTS
+ - description: Pine64 PINE A64 LTS
items:
- const: pine64,pine64-lts
- const: allwinner,sun50i-r18
@@ -748,17 +763,17 @@
- const: pine64,pinephone
- const: allwinner,sun50i-a64
- - description: Pine64 PineTab, Development Sample
+ - description: Pine64 PineTab Developer Sample
items:
- const: pine64,pinetab
- const: allwinner,sun50i-a64
- - description: Pine64 PineTab, Early Adopter's batch (and maybe later ones)
+ - description: Pine64 PineTab Early Adopter
items:
- const: pine64,pinetab-early-adopter
- const: allwinner,sun50i-a64
- - description: Pine64 SoPine Baseboard
+ - description: Pine64 SOPINE
items:
- const: pine64,sopine-baseboard
- const: pine64,sopine
@@ -774,6 +789,11 @@
- const: pocketbook,touch-lux-3
- const: allwinner,sun5i-a13
+ - description: PocketBook 614 Plus
+ items:
+ - const: pocketbook,614-plus
+ - const: allwinner,sun5i-a13
+
- description: Point of View Protab2-IPS9
items:
- const: pov,protab2-ips9
@@ -860,6 +880,11 @@
- const: allwinner,sl631
- const: allwinner,sun8i-v3
+ - description: Tanix TX1
+ items:
+ - const: oranth,tanix-tx1
+ - const: allwinner,sun50i-h616
+
- description: Tanix TX6
items:
- const: oranth,tanix-tx6
diff --git a/Documentation/devicetree/bindings/arm/ti/k3.yaml b/Documentation/devicetree/bindings/arm/ti/k3.yaml
index 52b51fd..4d9c5fb 100644
--- a/Documentation/devicetree/bindings/arm/ti/k3.yaml
+++ b/Documentation/devicetree/bindings/arm/ti/k3.yaml
@@ -25,6 +25,12 @@
- ti,am62a7-sk
- const: ti,am62a7
+ - description: K3 AM62A7 SoC PHYTEC phyBOARD-Lyra
+ items:
+ - const: phytec,am62a7-phyboard-lyra-rdk
+ - const: phytec,am62a-phycore-som
+ - const: ti,am62a7
+
- description: K3 AM62P5 SoC and Boards
items:
- enum:
diff --git a/Documentation/devicetree/bindings/ata/ahci-da850.txt b/Documentation/devicetree/bindings/ata/ahci-da850.txt
deleted file mode 100644
index 5f81934..0000000
--- a/Documentation/devicetree/bindings/ata/ahci-da850.txt
+++ /dev/null
@@ -1,18 +0,0 @@
-Device tree binding for the TI DA850 AHCI SATA Controller
----------------------------------------------------------
-
-Required properties:
- - compatible: must be "ti,da850-ahci"
- - reg: physical base addresses and sizes of the two register regions
- used by the controller: the register map as defined by the
- AHCI 1.1 standard and the Power Down Control Register (PWRDN)
- for enabling/disabling the SATA clock receiver
- - interrupts: interrupt specifier (refer to the interrupt binding)
-
-Example:
-
- sata: sata@218000 {
- compatible = "ti,da850-ahci";
- reg = <0x218000 0x2000>, <0x22c018 0x4>;
- interrupts = <67>;
- };
diff --git a/Documentation/devicetree/bindings/ata/ahci-fsl-qoriq.txt b/Documentation/devicetree/bindings/ata/ahci-fsl-qoriq.txt
deleted file mode 100644
index 7c3ca0e..0000000
--- a/Documentation/devicetree/bindings/ata/ahci-fsl-qoriq.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-Binding for Freescale QorIQ AHCI SATA Controller
-
-Required properties:
- - reg: Physical base address and size of the controller's register area.
- - compatible: Compatibility string. Must be 'fsl,<chip>-ahci', where
- chip could be ls1021a, ls1043a, ls1046a, ls1088a, ls2080a etc.
- - clocks: Input clock specifier. Refer to common clock bindings.
- - interrupts: Interrupt specifier. Refer to interrupt binding.
-
-Optional properties:
- - dma-coherent: Enable AHCI coherent DMA operation.
- - reg-names: register area names when there are more than 1 register area.
-
-Examples:
- sata@3200000 {
- compatible = "fsl,ls1021a-ahci";
- reg = <0x0 0x3200000 0x0 0x10000>;
- interrupts = <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&platform_clk 1>;
- dma-coherent;
- };
diff --git a/Documentation/devicetree/bindings/ata/fsl,ahci.yaml b/Documentation/devicetree/bindings/ata/fsl,ahci.yaml
new file mode 100644
index 0000000..ea4428b
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/fsl,ahci.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/fsl,ahci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale QorIQ AHCI SATA Controller
+
+maintainers:
+ - Frank Li <Frank.Li@nxp.com>
+
+properties:
+ compatible:
+ oneOf:
+ - description: SATA controller for ls1012a
+ items:
+ - const: fsl,ls1012a-ahci
+ - const: fsl,ls1043a-ahci
+ - enum:
+ - fsl,ls1021a-ahci
+ - fsl,ls1028a-ahci
+ - fsl,ls1043a-ahci
+ - fsl,ls1046a-ahci
+ - fsl,ls1088a-ahci
+ - fsl,ls2080a-ahci
+ - fsl,lx2160a-ahci
+
+ reg:
+ minItems: 1
+ maxItems: 2
+
+ reg-names:
+ items:
+ - const: ahci
+ - const: sata-ecc
+ minItems: 1
+
+ clocks:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ dma-coherent: true
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ sata@3200000 {
+ compatible = "fsl,ls1021a-ahci";
+ reg = <0x3200000 0x10000>;
+ interrupts = <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&platform_clk 1>;
+ dma-coherent;
+ };
diff --git a/Documentation/devicetree/bindings/ata/fsl,imx-pata.yaml b/Documentation/devicetree/bindings/ata/fsl,imx-pata.yaml
new file mode 100644
index 0000000..324e241
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/fsl,imx-pata.yaml
@@ -0,0 +1,42 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/fsl,imx-pata.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX PATA Controller
+
+maintainers:
+ - Animesh Agarwal <animeshagarwal28@gmail.com>
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - fsl,imx31-pata
+ - fsl,imx51-pata
+ - const: fsl,imx27-pata
+ - const: fsl,imx27-pata
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ items:
+ - description: PATA Controller interrupts
+
+ clocks:
+ items:
+ - description: PATA Controller clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ pata: pata@83fe0000 {
+ compatible = "fsl,imx51-pata", "fsl,imx27-pata";
+ reg = <0x83fe0000 0x4000>;
+ interrupts = <70>;
+ clocks = <&clks 161>;
+ };
diff --git a/Documentation/devicetree/bindings/ata/imx-pata.txt b/Documentation/devicetree/bindings/ata/imx-pata.txt
deleted file mode 100644
index f1172f0..0000000
--- a/Documentation/devicetree/bindings/ata/imx-pata.txt
+++ /dev/null
@@ -1,16 +0,0 @@
-* Freescale i.MX PATA Controller
-
-Required properties:
-- compatible: "fsl,imx27-pata"
-- reg: Address range of the PATA Controller
-- interrupts: The interrupt of the PATA Controller
-- clocks: the clocks for the PATA Controller
-
-Example:
-
- pata: pata@83fe0000 {
- compatible = "fsl,imx51-pata", "fsl,imx27-pata";
- reg = <0x83fe0000 0x4000>;
- interrupts = <70>;
- clocks = <&clks 161>;
- };
diff --git a/Documentation/devicetree/bindings/ata/rockchip,dwc-ahci.yaml b/Documentation/devicetree/bindings/ata/rockchip,dwc-ahci.yaml
index b5e5767..13eaa8d 100644
--- a/Documentation/devicetree/bindings/ata/rockchip,dwc-ahci.yaml
+++ b/Documentation/devicetree/bindings/ata/rockchip,dwc-ahci.yaml
@@ -35,6 +35,9 @@
ports-implemented:
const: 1
+ power-domains:
+ maxItems: 1
+
sata-port@0:
$ref: /schemas/ata/snps,dwc-ahci-common.yaml#/$defs/dwc-ahci-port
diff --git a/Documentation/devicetree/bindings/ata/ti,da850-ahci.yaml b/Documentation/devicetree/bindings/ata/ti,da850-ahci.yaml
new file mode 100644
index 0000000..ce13c76
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/ti,da850-ahci.yaml
@@ -0,0 +1,39 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/ti,da850-ahci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI DA850 AHCI SATA Controller
+
+maintainers:
+ - Animesh Agarwal <animeshagarwal28@gmail.com>
+
+properties:
+ compatible:
+ const: ti,da850-ahci
+
+ reg:
+ items:
+ - description: Address and size of the register map as defined by the AHCI 1.1 standard.
+ - description:
+ Address and size of Power Down Control Register (PWRDN) for enabling/disabling the SATA clock
+ receiver.
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ sata@218000 {
+ compatible = "ti,da850-ahci";
+ reg = <0x218000 0x2000>, <0x22c018 0x4>;
+ interrupts = <67>;
+ };
diff --git a/Documentation/devicetree/bindings/bus/st,stm32-etzpc.yaml b/Documentation/devicetree/bindings/bus/st,stm32-etzpc.yaml
new file mode 100644
index 0000000..d12b62a
--- /dev/null
+++ b/Documentation/devicetree/bindings/bus/st,stm32-etzpc.yaml
@@ -0,0 +1,96 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/bus/st,stm32-etzpc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STM32 Extended TrustZone protection controller
+
+description: |
+ The ETZPC configures TrustZone security in a SoC having bus masters and
+ devices with programmable-security attributes (securable resources).
+
+maintainers:
+ - Gatien Chevallier <gatien.chevallier@foss.st.com>
+
+select:
+ properties:
+ compatible:
+ contains:
+ const: st,stm32-etzpc
+ required:
+ - compatible
+
+properties:
+ compatible:
+ items:
+ - const: st,stm32-etzpc
+ - const: simple-bus
+
+ reg:
+ maxItems: 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 1
+
+ ranges: true
+
+ "#access-controller-cells":
+ const: 1
+ description:
+ Contains the firewall ID associated to the peripheral.
+
+patternProperties:
+ "^.*@[0-9a-f]+$":
+ description: Peripherals
+ type: object
+
+ additionalProperties: true
+
+ required:
+ - access-controllers
+
+required:
+ - compatible
+ - reg
+ - "#address-cells"
+ - "#size-cells"
+ - "#access-controller-cells"
+ - ranges
+
+additionalProperties: false
+
+examples:
+ - |
+ // In this example, the usart2 device refers to rifsc as its access
+ // controller.
+ // Access rights are verified before creating devices.
+
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/stm32mp13-clks.h>
+ #include <dt-bindings/reset/stm32mp13-resets.h>
+
+ etzpc: bus@5c007000 {
+ compatible = "st,stm32-etzpc", "simple-bus";
+ reg = <0x5c007000 0x400>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ #access-controller-cells = <1>;
+ ranges;
+
+ usart2: serial@4c001000 {
+ compatible = "st,stm32h7-uart";
+ reg = <0x4c001000 0x400>;
+ interrupts-extended = <&exti 27 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&rcc USART2_K>;
+ resets = <&rcc USART2_R>;
+ wakeup-source;
+ dmas = <&dmamux1 43 0x400 0x5>,
+ <&dmamux1 44 0x400 0x1>;
+ dma-names = "rx", "tx";
+ access-controllers = <&etzpc 17>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/bus/st,stm32mp25-rifsc.yaml b/Documentation/devicetree/bindings/bus/st,stm32mp25-rifsc.yaml
new file mode 100644
index 0000000..20acd1a
--- /dev/null
+++ b/Documentation/devicetree/bindings/bus/st,stm32mp25-rifsc.yaml
@@ -0,0 +1,105 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/bus/st,stm32mp25-rifsc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STM32 Resource isolation framework security controller
+
+maintainers:
+ - Gatien Chevallier <gatien.chevallier@foss.st.com>
+
+description: |
+ Resource isolation framework (RIF) is a comprehensive set of hardware blocks
+ designed to enforce and manage isolation of STM32 hardware resources like
+ memory and peripherals.
+
+ The RIFSC (RIF security controller) is composed of three sets of registers,
+ each managing a specific set of hardware resources:
+ - RISC registers associated with RISUP logic (resource isolation device unit
+ for peripherals), assign all non-RIF aware peripherals to zero, one or
+ any security domains (secure, privilege, compartment).
+ - RIMC registers: associated with RIMU logic (resource isolation master
+ unit), assign all non RIF-aware bus master to one security domain by
+ setting secure, privileged and compartment information on the system bus.
+ Alternatively, the RISUP logic controlling the device port access to a
+ peripheral can assign target bus attributes to this peripheral master port
+ (supported attribute: CID).
+ - RISC registers associated with RISAL logic (resource isolation device unit
+ for address space - Lite version), assign address space subregions to one
+ security domains (secure, privilege, compartment).
+
+select:
+ properties:
+ compatible:
+ contains:
+ const: st,stm32mp25-rifsc
+ required:
+ - compatible
+
+properties:
+ compatible:
+ items:
+ - const: st,stm32mp25-rifsc
+ - const: simple-bus
+
+ reg:
+ maxItems: 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 1
+
+ ranges: true
+
+ "#access-controller-cells":
+ const: 1
+ description:
+ Contains the firewall ID associated to the peripheral.
+
+patternProperties:
+ "^.*@[0-9a-f]+$":
+ description: Peripherals
+ type: object
+
+ additionalProperties: true
+
+ required:
+ - access-controllers
+
+required:
+ - compatible
+ - reg
+ - "#address-cells"
+ - "#size-cells"
+ - "#access-controller-cells"
+ - ranges
+
+additionalProperties: false
+
+examples:
+ - |
+ // In this example, the usart2 device refers to rifsc as its domain
+ // controller.
+ // Access rights are verified before creating devices.
+
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ rifsc: bus@42080000 {
+ compatible = "st,stm32mp25-rifsc", "simple-bus";
+ reg = <0x42080000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ #access-controller-cells = <1>;
+ ranges;
+
+ usart2: serial@400e0000 {
+ compatible = "st,stm32h7-uart";
+ reg = <0x400e0000 0x400>;
+ interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ck_flexgen_08>;
+ access-controllers = <&rifsc 32>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/cache/qcom,llcc.yaml b/Documentation/devicetree/bindings/cache/qcom,llcc.yaml
index 07ccbda..68ea5f7 100644
--- a/Documentation/devicetree/bindings/cache/qcom,llcc.yaml
+++ b/Documentation/devicetree/bindings/cache/qcom,llcc.yaml
@@ -21,6 +21,7 @@
compatible:
enum:
- qcom,qdu1000-llcc
+ - qcom,sa8775p-llcc
- qcom,sc7180-llcc
- qcom,sc7280-llcc
- qcom,sc8180x-llcc
@@ -66,7 +67,6 @@
compatible:
contains:
enum:
- - qcom,qdu1000-llcc
- qcom,sc7180-llcc
- qcom,sm6350-llcc
then:
@@ -85,6 +85,33 @@
compatible:
contains:
enum:
+ - qcom,sa8775p-llcc
+ then:
+ properties:
+ reg:
+ items:
+ - description: LLCC0 base register region
+ - description: LLCC1 base register region
+ - description: LLCC2 base register region
+ - description: LLCC3 base register region
+ - description: LLCC4 base register region
+ - description: LLCC5 base register region
+ - description: LLCC broadcast base register region
+ reg-names:
+ items:
+ - const: llcc0_base
+ - const: llcc1_base
+ - const: llcc2_base
+ - const: llcc3_base
+ - const: llcc4_base
+ - const: llcc5_base
+ - const: llcc_broadcast_base
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
- qcom,sc7280-llcc
then:
properties:
@@ -104,6 +131,7 @@
compatible:
contains:
enum:
+ - qcom,qdu1000-llcc
- qcom,sc8180x-llcc
- qcom,sc8280xp-llcc
- qcom,x1e80100-llcc
@@ -141,8 +169,6 @@
- qcom,sm8150-llcc
- qcom,sm8250-llcc
- qcom,sm8350-llcc
- - qcom,sm8450-llcc
- - qcom,sm8550-llcc
then:
properties:
reg:
@@ -160,6 +186,33 @@
- const: llcc3_base
- const: llcc_broadcast_base
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,sm8450-llcc
+ - qcom,sm8550-llcc
+ - qcom,sm8650-llcc
+ then:
+ properties:
+ reg:
+ items:
+ - description: LLCC0 base register region
+ - description: LLCC1 base register region
+ - description: LLCC2 base register region
+ - description: LLCC3 base register region
+ - description: LLCC broadcast OR register region
+ - description: LLCC broadcast AND register region
+ reg-names:
+ items:
+ - const: llcc0_base
+ - const: llcc1_base
+ - const: llcc2_base
+ - const: llcc3_base
+ - const: llcc_broadcast_base
+ - const: llcc_broadcast_and_base
+
additionalProperties: false
examples:
diff --git a/Documentation/devicetree/bindings/cache/starfive,jh8100-starlink-cache.yaml b/Documentation/devicetree/bindings/cache/starfive,jh8100-starlink-cache.yaml
new file mode 100644
index 0000000..6d61098
--- /dev/null
+++ b/Documentation/devicetree/bindings/cache/starfive,jh8100-starlink-cache.yaml
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/cache/starfive,jh8100-starlink-cache.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: StarFive StarLink Cache Controller
+
+maintainers:
+ - Joshua Yeong <joshua.yeong@starfivetech.com>
+
+description:
+ StarFive's StarLink Cache Controller manages the L3 cache shared between
+ clusters of CPU cores. The cache driver enables RISC-V non-standard cache
+ management as an alternative to instructions in the RISC-V Zicbom extension.
+
+allOf:
+ - $ref: /schemas/cache-controller.yaml#
+
+# We need a select here so we don't match all nodes with 'cache'
+select:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - starfive,jh8100-starlink-cache
+
+ required:
+ - compatible
+
+properties:
+ compatible:
+ items:
+ - const: starfive,jh8100-starlink-cache
+ - const: cache
+
+ reg:
+ maxItems: 1
+
+unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+ - cache-block-size
+ - cache-level
+ - cache-sets
+ - cache-size
+ - cache-unified
+
+examples:
+ - |
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ cache-controller@15000000 {
+ compatible = "starfive,jh8100-starlink-cache", "cache";
+ reg = <0x0 0x15000000 0x0 0x278>;
+ cache-block-size = <64>;
+ cache-level = <3>;
+ cache-sets = <8192>;
+ cache-size = <0x400000>;
+ cache-unified;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml b/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml
index 79b0752..84353fd 100644
--- a/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml
+++ b/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml
@@ -29,10 +29,13 @@
properties:
compatible:
items:
- - const: airoha,en7523-scu
+ - enum:
+ - airoha,en7523-scu
+ - airoha,en7581-scu
reg:
- maxItems: 2
+ minItems: 2
+ maxItems: 4
"#clock-cells":
description:
@@ -40,11 +43,42 @@
clocks.
const: 1
+ '#reset-cells':
+ description: ID of the controller reset line
+ const: 1
+
required:
- compatible
- reg
- '#clock-cells'
+allOf:
+ - if:
+ properties:
+ compatible:
+ const: airoha,en7523-scu
+ then:
+ properties:
+ reg:
+ items:
+ - description: scu base address
+ - description: misc scu base address
+
+ '#reset-cells': false
+
+ - if:
+ properties:
+ compatible:
+ const: airoha,en7581-scu
+ then:
+ properties:
+ reg:
+ items:
+ - description: scu base address
+ - description: misc scu base address
+ - description: reset base address
+ - description: pb scu base address
+
additionalProperties: false
examples:
@@ -56,3 +90,19 @@
<0x1fb00000 0x1000>;
#clock-cells = <1>;
};
+
+ - |
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ scuclk: clock-controller@1fa20000 {
+ compatible = "airoha,en7581-scu";
+ reg = <0x0 0x1fa20000 0x0 0x400>,
+ <0x0 0x1fb00000 0x0 0x90>,
+ <0x0 0x1fb00830 0x0 0x8>,
+ <0x0 0x1fbe3400 0x0 0xfc>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/amlogic,a1-peripherals-clkc.yaml b/Documentation/devicetree/bindings/clock/amlogic,a1-peripherals-clkc.yaml
index 6d84cee..2568ad7 100644
--- a/Documentation/devicetree/bindings/clock/amlogic,a1-peripherals-clkc.yaml
+++ b/Documentation/devicetree/bindings/clock/amlogic,a1-peripherals-clkc.yaml
@@ -30,6 +30,8 @@
- description: input fixed pll div7
- description: input hifi pll
- description: input oscillator (usually at 24MHz)
+ - description: input sys pll
+ minItems: 6 # sys_pll is optional
clock-names:
items:
@@ -39,6 +41,8 @@
- const: fclk_div7
- const: hifi_pll
- const: xtal
+ - const: sys_pll
+ minItems: 6 # sys_pll is optional
required:
- compatible
@@ -65,9 +69,10 @@
<&clkc_pll CLKID_FCLK_DIV5>,
<&clkc_pll CLKID_FCLK_DIV7>,
<&clkc_pll CLKID_HIFI_PLL>,
- <&xtal>;
+ <&xtal>,
+ <&clkc_pll CLKID_SYS_PLL>;
clock-names = "fclk_div2", "fclk_div3",
"fclk_div5", "fclk_div7",
- "hifi_pll", "xtal";
+ "hifi_pll", "xtal", "sys_pll";
};
};
diff --git a/Documentation/devicetree/bindings/clock/amlogic,a1-pll-clkc.yaml b/Documentation/devicetree/bindings/clock/amlogic,a1-pll-clkc.yaml
index a59b188..c99274d 100644
--- a/Documentation/devicetree/bindings/clock/amlogic,a1-pll-clkc.yaml
+++ b/Documentation/devicetree/bindings/clock/amlogic,a1-pll-clkc.yaml
@@ -26,11 +26,15 @@
items:
- description: input fixpll_in
- description: input hifipll_in
+ - description: input syspll_in
+ minItems: 2 # syspll_in is optional
clock-names:
items:
- const: fixpll_in
- const: hifipll_in
+ - const: syspll_in
+ minItems: 2 # syspll_in is optional
required:
- compatible
@@ -53,7 +57,8 @@
reg = <0 0x7c80 0 0x18c>;
#clock-cells = <1>;
clocks = <&clkc_periphs CLKID_FIXPLL_IN>,
- <&clkc_periphs CLKID_HIFIPLL_IN>;
- clock-names = "fixpll_in", "hifipll_in";
+ <&clkc_periphs CLKID_HIFIPLL_IN>,
+ <&clkc_periphs CLKID_SYSPLL_IN>;
+ clock-names = "fixpll_in", "hifipll_in", "syspll_in";
};
};
diff --git a/Documentation/devicetree/bindings/clock/amlogic,axg-audio-clkc.txt b/Documentation/devicetree/bindings/clock/amlogic,axg-audio-clkc.txt
deleted file mode 100644
index 3a8948c..0000000
--- a/Documentation/devicetree/bindings/clock/amlogic,axg-audio-clkc.txt
+++ /dev/null
@@ -1,59 +0,0 @@
-* Amlogic AXG Audio Clock Controllers
-
-The Amlogic AXG audio clock controller generates and supplies clock to the
-other elements of the audio subsystem, such as fifos, i2s, spdif and pdm
-devices.
-
-Required Properties:
-
-- compatible : should be "amlogic,axg-audio-clkc" for the A113X and A113D,
- "amlogic,g12a-audio-clkc" for G12A,
- "amlogic,sm1-audio-clkc" for S905X3.
-- reg : physical base address of the clock controller and length of
- memory mapped region.
-- clocks : a list of phandle + clock-specifier pairs for the clocks listed
- in clock-names.
-- clock-names : must contain the following:
- * "pclk" - Main peripheral bus clock
- may contain the following:
- * "mst_in[0-7]" - 8 input plls to generate clock signals
- * "slv_sclk[0-9]" - 10 slave bit clocks provided by external
- components.
- * "slv_lrclk[0-9]" - 10 slave sample clocks provided by external
- components.
-- resets : phandle of the internal reset line
-- #clock-cells : should be 1.
-- #reset-cells : should be 1 on the g12a (and following) soc family
-
-Each clock is assigned an identifier and client nodes can use this identifier
-to specify the clock which they consume. All available clocks are defined as
-preprocessor macros in the dt-bindings/clock/axg-audio-clkc.h header and can be
-used in device tree sources.
-
-Example:
-
-clkc_audio: clock-controller@0 {
- compatible = "amlogic,axg-audio-clkc";
- reg = <0x0 0x0 0x0 0xb4>;
- #clock-cells = <1>;
-
- clocks = <&clkc CLKID_AUDIO>,
- <&clkc CLKID_MPLL0>,
- <&clkc CLKID_MPLL1>,
- <&clkc CLKID_MPLL2>,
- <&clkc CLKID_MPLL3>,
- <&clkc CLKID_HIFI_PLL>,
- <&clkc CLKID_FCLK_DIV3>,
- <&clkc CLKID_FCLK_DIV4>,
- <&clkc CLKID_GP0_PLL>;
- clock-names = "pclk",
- "mst_in0",
- "mst_in1",
- "mst_in2",
- "mst_in3",
- "mst_in4",
- "mst_in5",
- "mst_in6",
- "mst_in7";
- resets = <&reset RESET_AUDIO>;
-};
diff --git a/Documentation/devicetree/bindings/clock/amlogic,axg-audio-clkc.yaml b/Documentation/devicetree/bindings/clock/amlogic,axg-audio-clkc.yaml
new file mode 100644
index 0000000..fd7982d
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/amlogic,axg-audio-clkc.yaml
@@ -0,0 +1,201 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/amlogic,axg-audio-clkc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic AXG Audio Clock Controller
+
+maintainers:
+ - Neil Armstrong <neil.armstrong@linaro.org>
+ - Jerome Brunet <jbrunet@baylibre.com>
+
+description:
+ The Amlogic AXG audio clock controller generates and supplies clock to the
+ other elements of the audio subsystem, such as fifos, i2s, spdif and pdm
+ devices.
+
+properties:
+ compatible:
+ enum:
+ - amlogic,axg-audio-clkc
+ - amlogic,g12a-audio-clkc
+ - amlogic,sm1-audio-clkc
+
+ '#clock-cells':
+ const: 1
+
+ '#reset-cells':
+ const: 1
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ items:
+ - description: main peripheral bus clock
+ - description: input plls to generate clock signals N0
+ - description: input plls to generate clock signals N1
+ - description: input plls to generate clock signals N2
+ - description: input plls to generate clock signals N3
+ - description: input plls to generate clock signals N4
+ - description: input plls to generate clock signals N5
+ - description: input plls to generate clock signals N6
+ - description: input plls to generate clock signals N7
+ - description: slave bit clock N0 provided by external components
+ - description: slave bit clock N1 provided by external components
+ - description: slave bit clock N2 provided by external components
+ - description: slave bit clock N3 provided by external components
+ - description: slave bit clock N4 provided by external components
+ - description: slave bit clock N5 provided by external components
+ - description: slave bit clock N6 provided by external components
+ - description: slave bit clock N7 provided by external components
+ - description: slave bit clock N8 provided by external components
+ - description: slave bit clock N9 provided by external components
+ - description: slave sample clock N0 provided by external components
+ - description: slave sample clock N1 provided by external components
+ - description: slave sample clock N2 provided by external components
+ - description: slave sample clock N3 provided by external components
+ - description: slave sample clock N4 provided by external components
+ - description: slave sample clock N5 provided by external components
+ - description: slave sample clock N6 provided by external components
+ - description: slave sample clock N7 provided by external components
+ - description: slave sample clock N8 provided by external components
+ - description: slave sample clock N9 provided by external components
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: pclk
+ - const: mst_in0
+ - const: mst_in1
+ - const: mst_in2
+ - const: mst_in3
+ - const: mst_in4
+ - const: mst_in5
+ - const: mst_in6
+ - const: mst_in7
+ - const: slv_sclk0
+ - const: slv_sclk1
+ - const: slv_sclk2
+ - const: slv_sclk3
+ - const: slv_sclk4
+ - const: slv_sclk5
+ - const: slv_sclk6
+ - const: slv_sclk7
+ - const: slv_sclk8
+ - const: slv_sclk9
+ - const: slv_lrclk0
+ - const: slv_lrclk1
+ - const: slv_lrclk2
+ - const: slv_lrclk3
+ - const: slv_lrclk4
+ - const: slv_lrclk5
+ - const: slv_lrclk6
+ - const: slv_lrclk7
+ - const: slv_lrclk8
+ - const: slv_lrclk9
+
+ resets:
+ description: internal reset line
+
+required:
+ - compatible
+ - '#clock-cells'
+ - reg
+ - clocks
+ - clock-names
+ - resets
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - amlogic,g12a-audio-clkc
+ - amlogic,sm1-audio-clkc
+ then:
+ required:
+ - '#reset-cells'
+ else:
+ properties:
+ '#reset-cells': false
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/axg-clkc.h>
+ #include <dt-bindings/reset/amlogic,meson-axg-reset.h>
+ apb {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ clkc_audio: clock-controller@0 {
+ compatible = "amlogic,axg-audio-clkc";
+ reg = <0x0 0x0 0x0 0xb4>;
+ #clock-cells = <1>;
+
+ clocks = <&clkc CLKID_AUDIO>,
+ <&clkc CLKID_MPLL0>,
+ <&clkc CLKID_MPLL1>,
+ <&clkc CLKID_MPLL2>,
+ <&clkc CLKID_MPLL3>,
+ <&clkc CLKID_HIFI_PLL>,
+ <&clkc CLKID_FCLK_DIV3>,
+ <&clkc CLKID_FCLK_DIV4>,
+ <&clkc CLKID_GP0_PLL>,
+ <&slv_sclk0>,
+ <&slv_sclk1>,
+ <&slv_sclk2>,
+ <&slv_sclk3>,
+ <&slv_sclk4>,
+ <&slv_sclk5>,
+ <&slv_sclk6>,
+ <&slv_sclk7>,
+ <&slv_sclk8>,
+ <&slv_sclk9>,
+ <&slv_lrclk0>,
+ <&slv_lrclk1>,
+ <&slv_lrclk2>,
+ <&slv_lrclk3>,
+ <&slv_lrclk4>,
+ <&slv_lrclk5>,
+ <&slv_lrclk6>,
+ <&slv_lrclk7>,
+ <&slv_lrclk8>,
+ <&slv_lrclk9>;
+ clock-names = "pclk",
+ "mst_in0",
+ "mst_in1",
+ "mst_in2",
+ "mst_in3",
+ "mst_in4",
+ "mst_in5",
+ "mst_in6",
+ "mst_in7",
+ "slv_sclk0",
+ "slv_sclk1",
+ "slv_sclk2",
+ "slv_sclk3",
+ "slv_sclk4",
+ "slv_sclk5",
+ "slv_sclk6",
+ "slv_sclk7",
+ "slv_sclk8",
+ "slv_sclk9",
+ "slv_lrclk0",
+ "slv_lrclk1",
+ "slv_lrclk2",
+ "slv_lrclk3",
+ "slv_lrclk4",
+ "slv_lrclk5",
+ "slv_lrclk6",
+ "slv_lrclk7",
+ "slv_lrclk8",
+ "slv_lrclk9";
+ resets = <&reset RESET_AUDIO>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/amlogic,c3-peripherals-clkc.yaml b/Documentation/devicetree/bindings/clock/amlogic,c3-peripherals-clkc.yaml
new file mode 100644
index 0000000..98e30b8
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/amlogic,c3-peripherals-clkc.yaml
@@ -0,0 +1,120 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2022-2023 Amlogic, Inc. All rights reserved
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/amlogic,c3-peripherals-clkc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic C3 series Peripheral Clock Controller
+
+maintainers:
+ - Neil Armstrong <neil.armstrong@linaro.org>
+ - Jerome Brunet <jbrunet@baylibre.com>
+ - Xianwei Zhao <xianwei.zhao@amlogic.com>
+ - Chuan Liu <chuan.liu@amlogic.com>
+
+properties:
+ compatible:
+ const: amlogic,c3-peripherals-clkc
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 16
+ items:
+ - description: input oscillator (usually at 24MHz)
+ - description: input oscillators multiplexer
+ - description: input fix pll
+ - description: input fclk div 2
+ - description: input fclk div 2p5
+ - description: input fclk div 3
+ - description: input fclk div 4
+ - description: input fclk div 5
+ - description: input fclk div 7
+ - description: input gp0 pll
+ - description: input gp1 pll
+ - description: input hifi pll
+ - description: input sys clk
+ - description: input axi clk
+ - description: input sys pll div 16
+ - description: input cpu clk div 16
+ - description: input pad clock for rtc clk (optional)
+
+ clock-names:
+ minItems: 16
+ items:
+ - const: xtal_24m
+ - const: oscin
+ - const: fix
+ - const: fdiv2
+ - const: fdiv2p5
+ - const: fdiv3
+ - const: fdiv4
+ - const: fdiv5
+ - const: fdiv7
+ - const: gp0
+ - const: gp1
+ - const: hifi
+ - const: sysclk
+ - const: axiclk
+ - const: sysplldiv16
+ - const: cpudiv16
+ - const: pad_osc
+
+ "#clock-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - "#clock-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ apb {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ clock-controller@0 {
+ compatible = "amlogic,c3-peripherals-clkc";
+ reg = <0x0 0x0 0x0 0x49c>;
+ #clock-cells = <1>;
+ clocks = <&xtal_24m>,
+ <&scmi_clk 8>,
+ <&scmi_clk 12>,
+ <&clkc_pll 3>,
+ <&clkc_pll 5>,
+ <&clkc_pll 7>,
+ <&clkc_pll 9>,
+ <&clkc_pll 11>,
+ <&clkc_pll 13>,
+ <&clkc_pll 15>,
+ <&scmi_clk 13>,
+ <&clkc_pll 17>,
+ <&scmi_clk 9>,
+ <&scmi_clk 10>,
+ <&scmi_clk 14>,
+ <&scmi_clk 15>;
+ clock-names = "xtal_24m",
+ "oscin",
+ "fix",
+ "fdiv2",
+ "fdiv2p5",
+ "fdiv3",
+ "fdiv4",
+ "fdiv5",
+ "fdiv7",
+ "gp0",
+ "gp1",
+ "hifi",
+ "sysclk",
+ "axiclk",
+ "sysplldiv16",
+ "cpudiv16";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/amlogic,c3-pll-clkc.yaml b/Documentation/devicetree/bindings/clock/amlogic,c3-pll-clkc.yaml
new file mode 100644
index 0000000..43de3c6
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/amlogic,c3-pll-clkc.yaml
@@ -0,0 +1,59 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2022-2023 Amlogic, Inc. All rights reserved
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/amlogic,c3-pll-clkc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic C3 series PLL Clock Controller
+
+maintainers:
+ - Neil Armstrong <neil.armstrong@linaro.org>
+ - Jerome Brunet <jbrunet@baylibre.com>
+ - Chuan Liu <chuan.liu@amlogic.com>
+ - Xianwei Zhao <xianwei.zhao@amlogic.com>
+
+properties:
+ compatible:
+ const: amlogic,c3-pll-clkc
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: input top pll
+ - description: input mclk pll
+
+ clock-names:
+ items:
+ - const: top
+ - const: mclk
+
+ "#clock-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - "#clock-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ apb {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ clock-controller@8000 {
+ compatible = "amlogic,c3-pll-clkc";
+ reg = <0x0 0x8000 0x0 0x1a4>;
+ clocks = <&scmi_clk 2>,
+ <&scmi_clk 5>;
+ clock-names = "top", "mclk";
+ #clock-cells = <1>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/fixed-clock.yaml b/Documentation/devicetree/bindings/clock/fixed-clock.yaml
index b0a4fb8..90fb106 100644
--- a/Documentation/devicetree/bindings/clock/fixed-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/fixed-clock.yaml
@@ -11,6 +11,15 @@
- Stephen Boyd <sboyd@kernel.org>
properties:
+ $nodename:
+ anyOf:
+ - description:
+ Preferred name is 'clock-<freq>' with <freq> being the output
+ frequency as defined in the 'clock-frequency' property.
+ pattern: "^clock-([0-9]+|[a-z0-9-]+)$"
+ - description: Any name allowed
+ deprecated: true
+
compatible:
const: fixed-clock
diff --git a/Documentation/devicetree/bindings/clock/fixed-factor-clock.yaml b/Documentation/devicetree/bindings/clock/fixed-factor-clock.yaml
index 8f71ab3..4afdb1c 100644
--- a/Documentation/devicetree/bindings/clock/fixed-factor-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/fixed-factor-clock.yaml
@@ -11,6 +11,15 @@
- Stephen Boyd <sboyd@kernel.org>
properties:
+ $nodename:
+ anyOf:
+ - description:
+ If the frequency is fixed, the preferred name is 'clock-<freq>' with
+ <freq> being the output frequency.
+ pattern: "^clock-([0-9]+|[0-9a-z-]+)$"
+ - description: Any name allowed
+ deprecated: true
+
compatible:
enum:
- fixed-factor-clock
diff --git a/Documentation/devicetree/bindings/clock/fsl,qoriq-clock-legacy.yaml b/Documentation/devicetree/bindings/clock/fsl,qoriq-clock-legacy.yaml
new file mode 100644
index 0000000..97b96a1
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/fsl,qoriq-clock-legacy.yaml
@@ -0,0 +1,84 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/fsl,qoriq-clock-legacy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Legacy Clock Block on Freescale QorIQ Platforms
+
+maintainers:
+ - Frank Li <Frank.Li@nxp.com>
+
+description: |
+ These nodes are deprecated. Kernels should continue to support
+ device trees with these nodes, but new device trees should not use them.
+
+ Most of the bindings are from the common clock binding[1].
+ [1] Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+properties:
+ compatible:
+ enum:
+ - fsl,qoriq-core-pll-1.0
+ - fsl,qoriq-core-pll-2.0
+ - fsl,qoriq-core-mux-1.0
+ - fsl,qoriq-core-mux-2.0
+ - fsl,qoriq-sysclk-1.0
+ - fsl,qoriq-sysclk-2.0
+ - fsl,qoriq-platform-pll-1.0
+ - fsl,qoriq-platform-pll-2.0
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ maxItems: 4
+
+ clock-names:
+ minItems: 1
+ maxItems: 4
+
+ clock-output-names:
+ minItems: 1
+ maxItems: 8
+
+ '#clock-cells':
+ minimum: 0
+ maximum: 1
+
+required:
+ - compatible
+ - '#clock-cells'
+
+additionalProperties: false
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - fsl,qoriq-sysclk-1.0
+ - fsl,qoriq-sysclk-2.0
+ then:
+ properties:
+ '#clock-cells':
+ const: 0
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - fsl,qoriq-core-pll-1.0
+ - fsl,qoriq-core-pll-2.0
+ then:
+ properties:
+ '#clock-cells':
+ const: 1
+ description: |
+ * 0 - equal to the PLL frequency
+ * 1 - equal to the PLL frequency divided by 2
+ * 2 - equal to the PLL frequency divided by 4
+
diff --git a/Documentation/devicetree/bindings/clock/fsl,qoriq-clock.yaml b/Documentation/devicetree/bindings/clock/fsl,qoriq-clock.yaml
new file mode 100644
index 0000000..95a3e3b
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/fsl,qoriq-clock.yaml
@@ -0,0 +1,207 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/fsl,qoriq-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Clock Block on Freescale QorIQ Platforms
+
+maintainers:
+ - Frank Li <Frank.Li@nxp.com>
+
+description: |
+ Freescale QorIQ chips take primary clocking input from the external
+ SYSCLK signal. The SYSCLK input (frequency) is multiplied using
+ multiple phase locked loops (PLL) to create a variety of frequencies
+ which can then be passed to a variety of internal logic, including
+ cores and peripheral IP blocks.
+ Please refer to the Reference Manual for details.
+
+ All references to "1.0" and "2.0" refer to the QorIQ chassis version to
+ which the chip complies.
+
+ Chassis Version Example Chips
+ --------------- -------------
+ 1.0 p4080, p5020, p5040
+ 2.0 t4240
+
+ Clock Provider
+
+ The clockgen node should act as a clock provider, though in older device
+ trees the children of the clockgen node are the clock providers.
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - fsl,p2041-clockgen
+ - fsl,p3041-clockgen
+ - fsl,p4080-clockgen
+ - fsl,p5020-clockgen
+ - fsl,p5040-clockgen
+ - const: fsl,qoriq-clockgen-1.0
+ - items:
+ - enum:
+ - fsl,t1023-clockgen
+ - fsl,t1024-clockgen
+ - fsl,t1040-clockgen
+ - fsl,t1042-clockgen
+ - fsl,t2080-clockgen
+ - fsl,t2081-clockgen
+ - fsl,t4240-clockgen
+ - const: fsl,qoriq-clockgen-2.0
+ - items:
+ - enum:
+ - fsl,b4420-clockgen
+ - fsl,b4860-clockgen
+ - const: fsl,b4-clockgen
+ - items:
+ - enum:
+ - fsl,ls1012a-clockgen
+ - fsl,ls1021a-clockgen
+ - fsl,ls1028a-clockgen
+ - fsl,ls1043a-clockgen
+ - fsl,ls1046a-clockgen
+ - fsl,ls1088a-clockgen
+ - fsl,ls2080a-clockgen
+ - fsl,lx2160a-clockgen
+
+ reg:
+ maxItems: 1
+
+ ranges: true
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 1
+
+ '#clock-cells':
+ const: 2
+ description: |
+ The first cell of the clock specifier is the clock type, and the
+ second cell is the clock index for the specified type.
+
+ Type# Name Index Cell
+ 0 sysclk must be 0
+ 1 cmux index (n in CLKCnCSR)
+ 2 hwaccel index (n in CLKCGnHWACSR)
+ 3 fman 0 for fm1, 1 for fm2
+ 4 platform pll n=pll/(n+1). For example, when n=1,
+ that means output_freq=PLL_freq/2.
+ 5 coreclk must be 0
+
+ clock-frequency:
+ description: Input system clock frequency (SYSCLK)
+
+ clocks:
+ items:
+ - description:
+ sysclk may be provided as an input clock. Either clock-frequency
+ or clocks must be provided.
+ - description:
+ A second input clock, called "coreclk", may be provided if
+ core PLLs are based on a different input clock from the
+ platform PLL.
+ minItems: 1
+
+ clock-names:
+ items:
+ - const: sysclk
+ - const: coreclk
+
+patternProperties:
+ '^mux[0-9]@[a-f0-9]+$':
+ deprecated: true
+ $ref: fsl,qoriq-clock-legacy.yaml
+
+ '^sysclk(-[a-z0-9]+)?$':
+ deprecated: true
+ $ref: fsl,qoriq-clock-legacy.yaml
+
+ '^pll[0-9]@[a-f0-9]+$':
+ deprecated: true
+ $ref: fsl,qoriq-clock-legacy.yaml
+
+ '^platform\-pll@[a-f0-9]+$':
+ deprecated: true
+ $ref: fsl,qoriq-clock-legacy.yaml
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ /* clock provider example */
+ global-utilities@e1000 {
+ compatible = "fsl,p5020-clockgen", "fsl,qoriq-clockgen-1.0";
+ reg = <0xe1000 0x1000>;
+ clock-frequency = <133333333>;
+ #clock-cells = <2>;
+ };
+
+ - |
+ /* Legacy example */
+ global-utilities@e1000 {
+ compatible = "fsl,p5020-clockgen", "fsl,qoriq-clockgen-1.0";
+ reg = <0xe1000 0x1000>;
+ ranges = <0x0 0xe1000 0x1000>;
+ clock-frequency = <133333333>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ #clock-cells = <2>;
+
+ sysclk: sysclk {
+ compatible = "fsl,qoriq-sysclk-1.0";
+ clock-output-names = "sysclk";
+ #clock-cells = <0>;
+ };
+
+ pll0: pll0@800 {
+ compatible = "fsl,qoriq-core-pll-1.0";
+ reg = <0x800 0x4>;
+ #clock-cells = <1>;
+ clocks = <&sysclk>;
+ clock-output-names = "pll0", "pll0-div2";
+ };
+
+ pll1: pll1@820 {
+ compatible = "fsl,qoriq-core-pll-1.0";
+ reg = <0x820 0x4>;
+ #clock-cells = <1>;
+ clocks = <&sysclk>;
+ clock-output-names = "pll1", "pll1-div2";
+ };
+
+ mux0: mux0@0 {
+ compatible = "fsl,qoriq-core-mux-1.0";
+ reg = <0x0 0x4>;
+ #clock-cells = <0>;
+ clocks = <&pll0 0>, <&pll0 1>, <&pll1 0>, <&pll1 1>;
+ clock-names = "pll0", "pll0-div2", "pll1", "pll1-div2";
+ clock-output-names = "cmux0";
+ };
+
+ mux1: mux1@20 {
+ compatible = "fsl,qoriq-core-mux-1.0";
+ reg = <0x20 0x4>;
+ #clock-cells = <0>;
+ clocks = <&pll0 0>, <&pll0 1>, <&pll1 0>, <&pll1 1>;
+ clock-names = "pll0", "pll0-div2", "pll1", "pll1-div2";
+ clock-output-names = "cmux1";
+ };
+
+ platform-pll@c00 {
+ #clock-cells = <1>;
+ reg = <0xc00 0x4>;
+ compatible = "fsl,qoriq-platform-pll-1.0";
+ clocks = <&sysclk>;
+ clock-output-names = "platform-pll", "platform-pll-div2";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/google,gs101-clock.yaml b/Documentation/devicetree/bindings/clock/google,gs101-clock.yaml
index 1d2bcea..caf442e 100644
--- a/Documentation/devicetree/bindings/clock/google,gs101-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/google,gs101-clock.yaml
@@ -30,16 +30,18 @@
- google,gs101-cmu-top
- google,gs101-cmu-apm
- google,gs101-cmu-misc
+ - google,gs101-cmu-hsi0
+ - google,gs101-cmu-hsi2
- google,gs101-cmu-peric0
- google,gs101-cmu-peric1
clocks:
minItems: 1
- maxItems: 3
+ maxItems: 5
clock-names:
minItems: 1
- maxItems: 3
+ maxItems: 5
"#clock-cells":
const: 1
@@ -76,6 +78,55 @@
properties:
compatible:
contains:
+ const: google,gs101-cmu-hsi0
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (24.576 MHz)
+ - description: HSI0 bus clock (from CMU_TOP)
+ - description: DPGTC (from CMU_TOP)
+ - description: USB DRD controller clock (from CMU_TOP)
+ - description: USB Display Port debug clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: bus
+ - const: dpgtc
+ - const: usb31drd
+ - const: usbdpdbg
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - google,gs101-cmu-hsi2
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (24.576 MHz)
+ - description: High Speed Interface bus clock (from CMU_TOP)
+ - description: High Speed Interface pcie clock (from CMU_TOP)
+ - description: High Speed Interface ufs clock (from CMU_TOP)
+ - description: High Speed Interface mmc clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: bus
+ - const: pcie
+ - const: ufs
+ - const: mmc
+
+ - if:
+ properties:
+ compatible:
+ contains:
const: google,gs101-cmu-misc
then:
diff --git a/Documentation/devicetree/bindings/clock/imx6q-clock.yaml b/Documentation/devicetree/bindings/clock/imx6q-clock.yaml
index bae4fcb..cd3c04c 100644
--- a/Documentation/devicetree/bindings/clock/imx6q-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/imx6q-clock.yaml
@@ -7,7 +7,8 @@
title: Freescale i.MX6 Quad Clock Controller
maintainers:
- - Anson Huang <Anson.Huang@nxp.com>
+ - Abel Vesa <abelvesa@kernel.org>
+ - Peng Fan <peng.fan@nxp.com>
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/clock/imx6sl-clock.yaml b/Documentation/devicetree/bindings/clock/imx6sl-clock.yaml
index c85ff6e..6713bbb 100644
--- a/Documentation/devicetree/bindings/clock/imx6sl-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/imx6sl-clock.yaml
@@ -7,7 +7,8 @@
title: Freescale i.MX6 SoloLite Clock Controller
maintainers:
- - Anson Huang <Anson.Huang@nxp.com>
+ - Abel Vesa <abelvesa@kernel.org>
+ - Peng Fan <peng.fan@nxp.com>
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/clock/imx6sll-clock.yaml b/Documentation/devicetree/bindings/clock/imx6sll-clock.yaml
index 6b549ed..6d64cf9 100644
--- a/Documentation/devicetree/bindings/clock/imx6sll-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/imx6sll-clock.yaml
@@ -7,7 +7,8 @@
title: Freescale i.MX6 SLL Clock Controller
maintainers:
- - Anson Huang <Anson.Huang@nxp.com>
+ - Abel Vesa <abelvesa@kernel.org>
+ - Peng Fan <peng.fan@nxp.com>
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/clock/imx6sx-clock.yaml b/Documentation/devicetree/bindings/clock/imx6sx-clock.yaml
index 55dcad1..77afa4b 100644
--- a/Documentation/devicetree/bindings/clock/imx6sx-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/imx6sx-clock.yaml
@@ -7,7 +7,8 @@
title: Freescale i.MX6 SoloX Clock Controller
maintainers:
- - Anson Huang <Anson.Huang@nxp.com>
+ - Abel Vesa <abelvesa@kernel.org>
+ - Peng Fan <peng.fan@nxp.com>
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/clock/imx6ul-clock.yaml b/Documentation/devicetree/bindings/clock/imx6ul-clock.yaml
index be54d4d..d57e18a 100644
--- a/Documentation/devicetree/bindings/clock/imx6ul-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/imx6ul-clock.yaml
@@ -7,7 +7,8 @@
title: Freescale i.MX6 UltraLite Clock Controller
maintainers:
- - Anson Huang <Anson.Huang@nxp.com>
+ - Abel Vesa <abelvesa@kernel.org>
+ - Peng Fan <peng.fan@nxp.com>
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/clock/imx7d-clock.yaml b/Documentation/devicetree/bindings/clock/imx7d-clock.yaml
index e7d8427..880d602d 100644
--- a/Documentation/devicetree/bindings/clock/imx7d-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/imx7d-clock.yaml
@@ -8,7 +8,6 @@
maintainers:
- Frank Li <Frank.Li@nxp.com>
- - Anson Huang <Anson.Huang@nxp.com>
description: |
The clock consumer should specify the desired clock by having the clock
diff --git a/Documentation/devicetree/bindings/clock/imx8m-clock.yaml b/Documentation/devicetree/bindings/clock/imx8m-clock.yaml
index 80539f8..c643d4a 100644
--- a/Documentation/devicetree/bindings/clock/imx8m-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/imx8m-clock.yaml
@@ -7,7 +7,8 @@
title: NXP i.MX8M Family Clock Control Module
maintainers:
- - Anson Huang <Anson.Huang@nxp.com>
+ - Abel Vesa <abelvesa@kernel.org>
+ - Peng Fan <peng.fan@nxp.com>
description: |
NXP i.MX8M Mini/Nano/Plus/Quad clock control module is an integrated clock
diff --git a/Documentation/devicetree/bindings/clock/loongson,ls2k-clk.yaml b/Documentation/devicetree/bindings/clock/loongson,ls2k-clk.yaml
index 63a5901..4f79cdb 100644
--- a/Documentation/devicetree/bindings/clock/loongson,ls2k-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/loongson,ls2k-clk.yaml
@@ -16,7 +16,9 @@
properties:
compatible:
enum:
- - loongson,ls2k-clk
+ - loongson,ls2k0500-clk
+ - loongson,ls2k-clk # This is for Loongson-2K1000
+ - loongson,ls2k2000-clk
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/clock/mediatek,mt7622-pciesys.yaml b/Documentation/devicetree/bindings/clock/mediatek,mt7622-pciesys.yaml
index c77111d..9c3913f 100644
--- a/Documentation/devicetree/bindings/clock/mediatek,mt7622-pciesys.yaml
+++ b/Documentation/devicetree/bindings/clock/mediatek,mt7622-pciesys.yaml
@@ -14,9 +14,11 @@
properties:
compatible:
- enum:
- - mediatek,mt7622-pciesys
- - mediatek,mt7629-pciesys
+ oneOf:
+ - items:
+ - const: mediatek,mt7622-pciesys
+ - const: syscon
+ - const: mediatek,mt7629-pciesys
reg:
maxItems: 1
@@ -38,7 +40,7 @@
examples:
- |
clock-controller@1a100800 {
- compatible = "mediatek,mt7622-pciesys";
+ compatible = "mediatek,mt7622-pciesys", "syscon";
reg = <0x1a100800 0x1000>;
#clock-cells = <1>;
#reset-cells = <1>;
diff --git a/Documentation/devicetree/bindings/clock/mediatek,mt8188-sys-clock.yaml b/Documentation/devicetree/bindings/clock/mediatek,mt8188-sys-clock.yaml
index 4cf8d3a..db13d51 100644
--- a/Documentation/devicetree/bindings/clock/mediatek,mt8188-sys-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/mediatek,mt8188-sys-clock.yaml
@@ -39,6 +39,9 @@
'#clock-cells':
const: 1
+ '#reset-cells':
+ const: 1
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/clock/milbeaut-clock.yaml b/Documentation/devicetree/bindings/clock/milbeaut-clock.yaml
index 0af1c56..d786f1e 100644
--- a/Documentation/devicetree/bindings/clock/milbeaut-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/milbeaut-clock.yaml
@@ -40,38 +40,11 @@
additionalProperties: false
examples:
- # Clock controller node:
- |
- m10v-clk-ctrl@1d021000 {
+ clock-controller@1d021000 {
compatible = "socionext,milbeaut-m10v-ccu";
reg = <0x1d021000 0x4000>;
#clock-cells = <1>;
clocks = <&clki40mhz>;
};
-
- # Required an external clock for Clock controller node:
- - |
- clocks {
- clki40mhz: clki40mhz {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <40000000>;
- };
- /* other clocks */
- };
-
- # The clock consumer shall specify the desired clock-output of the clock
- # controller as below by specifying output-id in its "clk" phandle cell.
- # 2: uart
- # 4: 32-bit timer
- # 7: UHS-I/II
- - |
- serial@1e700010 {
- compatible = "socionext,milbeaut-usio-uart";
- reg = <0x1e700010 0x10>;
- interrupts = <0 141 0x4>, <0 149 0x4>;
- interrupt-names = "rx", "tx";
- clocks = <&clk 2>;
- };
-
...
diff --git a/Documentation/devicetree/bindings/clock/nxp,imx95-blk-ctl.yaml b/Documentation/devicetree/bindings/clock/nxp,imx95-blk-ctl.yaml
new file mode 100644
index 0000000..2dffc02
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/nxp,imx95-blk-ctl.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/nxp,imx95-blk-ctl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP i.MX95 Block Control
+
+maintainers:
+ - Peng Fan <peng.fan@nxp.com>
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - nxp,imx95-lvds-csr
+ - nxp,imx95-display-csr
+ - nxp,imx95-camera-csr
+ - nxp,imx95-vpu-csr
+ - const: syscon
+
+ reg:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+ description:
+ The clock consumer should specify the desired clock by having the clock
+ ID in its "clocks" phandle cell. See
+ include/dt-bindings/clock/nxp,imx95-clock.h
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+ - power-domains
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ syscon@4c410000 {
+ compatible = "nxp,imx95-vpu-csr", "syscon";
+ reg = <0x4c410000 0x10000>;
+ #clock-cells = <1>;
+ clocks = <&scmi_clk 114>;
+ power-domains = <&scmi_devpd 21>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/nxp,imx95-display-master-csr.yaml b/Documentation/devicetree/bindings/clock/nxp,imx95-display-master-csr.yaml
new file mode 100644
index 0000000..07f7412
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/nxp,imx95-display-master-csr.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/nxp,imx95-display-master-csr.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP i.MX95 Display Master Block Control
+
+maintainers:
+ - Peng Fan <peng.fan@nxp.com>
+
+properties:
+ compatible:
+ items:
+ - const: nxp,imx95-display-master-csr
+ - const: syscon
+
+ reg:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+ description:
+ The clock consumer should specify the desired clock by having the clock
+ ID in its "clocks" phandle cell. See
+ include/dt-bindings/clock/nxp,imx95-clock.h
+
+ mux-controller:
+ type: object
+ $ref: /schemas/mux/reg-mux.yaml
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+ - mux-controller
+ - power-domains
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ syscon@4c410000 {
+ compatible = "nxp,imx95-display-master-csr", "syscon";
+ reg = <0x4c410000 0x10000>;
+ #clock-cells = <1>;
+ clocks = <&scmi_clk 62>;
+ power-domains = <&scmi_devpd 3>;
+
+ mux: mux-controller {
+ compatible = "mmio-mux";
+ #mux-control-cells = <1>;
+ mux-reg-masks = <0x4 0x00000001>; /* Pixel_link_sel */
+ idle-states = <0>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,dispcc-sc8280xp.yaml b/Documentation/devicetree/bindings/clock/qcom,dispcc-sc8280xp.yaml
index 3cb996b..ffae037 100644
--- a/Documentation/devicetree/bindings/clock/qcom,dispcc-sc8280xp.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,dispcc-sc8280xp.yaml
@@ -40,31 +40,19 @@
- description: DSI 1 PLL byte clock
- description: DSI 1 PLL DSI clock
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
power-domains:
items:
- description: MMCX power domain
required:
- compatible
- - reg
- clocks
- - '#clock-cells'
- - '#reset-cells'
- '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,dispcc-sm6350.yaml b/Documentation/devicetree/bindings/clock/qcom,dispcc-sm6350.yaml
index 8efac3f..46403b9 100644
--- a/Documentation/devicetree/bindings/clock/qcom,dispcc-sm6350.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,dispcc-sm6350.yaml
@@ -7,7 +7,7 @@
title: Qualcomm Display Clock & Reset Controller on SM6350
maintainers:
- - Konrad Dybcio <konrad.dybcio@somainline.org>
+ - Konrad Dybcio <konradybcio@kernel.org>
description: |
Qualcomm display clock control module provides the clocks, resets and power
@@ -37,28 +37,16 @@
- const: dp_phy_pll_link_clk
- const: dp_phy_pll_vco_div_clk
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
required:
- compatible
- - reg
- clocks
- clock-names
- - '#clock-cells'
- - '#reset-cells'
- '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,dispcc-sm8x50.yaml b/Documentation/devicetree/bindings/clock/qcom,dispcc-sm8x50.yaml
index 59cc88a..53a5ab31 100644
--- a/Documentation/devicetree/bindings/clock/qcom,dispcc-sm8x50.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,dispcc-sm8x50.yaml
@@ -27,6 +27,7 @@
- qcom,sm8350-dispcc
clocks:
+ minItems: 7
items:
- description: Board XO source
- description: Byte clock from DSI PHY0
@@ -35,8 +36,15 @@
- description: Pixel clock from DSI PHY1
- description: Link clock from DP PHY
- description: VCO DIV clock from DP PHY
+ - description: Link clock from eDP PHY
+ - description: VCO DIV clock from eDP PHY
+ - description: Link clock from DP1 PHY
+ - description: VCO DIV clock from DP1 PHY
+ - description: Link clock from DP2 PHY
+ - description: VCO DIV clock from DP2 PHY
clock-names:
+ minItems: 7
items:
- const: bi_tcxo
- const: dsi0_phy_pll_out_byteclk
@@ -45,18 +53,12 @@
- const: dsi1_phy_pll_out_dsiclk
- const: dp_phy_pll_link_clk
- const: dp_phy_pll_vco_div_clk
-
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
+ - const: edp_phy_pll_link_clk
+ - const: edp_phy_pll_vco_div_clk
+ - const: dptx1_phy_pll_link_clk
+ - const: dptx1_phy_pll_vco_div_clk
+ - const: dptx2_phy_pll_link_clk
+ - const: dptx2_phy_pll_vco_div_clk
power-domains:
description:
@@ -70,14 +72,26 @@
required:
- compatible
- - reg
- clocks
- clock-names
- - '#clock-cells'
- - '#reset-cells'
- '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+ - if:
+ not:
+ properties:
+ compatible:
+ contains:
+ const: qcom,sc8180x-dispcc
+ then:
+ properties:
+ clocks:
+ maxItems: 7
+ clock-names:
+ maxItems: 7
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-apq8064.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-apq8064.yaml
index 1921117..27df7e3 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-apq8064.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-apq8064.yaml
@@ -69,6 +69,8 @@
const: 1
deprecated: true
+ '#power-domain-cells': false
+
required:
- compatible
@@ -81,7 +83,6 @@
reg = <0x00900000 0x4000>;
#clock-cells = <1>;
#reset-cells = <1>;
- #power-domain-cells = <1>;
thermal-sensor {
compatible = "qcom,msm8960-tsens";
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-apq8084.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-apq8084.yaml
index d846082..0a0a26d 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-apq8084.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-apq8084.yaml
@@ -51,6 +51,7 @@
required:
- compatible
+ - '#power-domain-cells'
unevaluatedProperties: false
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-ipq4019.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-ipq4019.yaml
index fb3957d..0120489 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-ipq4019.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-ipq4019.yaml
@@ -34,6 +34,8 @@
- const: xo
- const: sleep_clk
+ '#power-domain-cells': false
+
required:
- compatible
@@ -45,7 +47,6 @@
compatible = "qcom,gcc-ipq4019";
reg = <0x1800000 0x60000>;
#clock-cells = <1>;
- #power-domain-cells = <1>;
#reset-cells = <1>;
clocks = <&xo>, <&sleep_clk>;
clock-names = "xo", "sleep_clk";
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-ipq6018.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-ipq6018.yaml
index af5d883..4d2614d 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-ipq6018.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-ipq6018.yaml
@@ -36,6 +36,8 @@
- const: xo
- const: sleep_clk
+ '#power-domain-cells': false
+
required:
- compatible
- clocks
@@ -51,7 +53,6 @@
clocks = <&xo>, <&sleep_clk>;
clock-names = "xo", "sleep_clk";
#clock-cells = <1>;
- #power-domain-cells = <1>;
#reset-cells = <1>;
};
...
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-ipq8064.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-ipq8064.yaml
index 93f3084..a715573 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-ipq8064.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-ipq8064.yaml
@@ -46,6 +46,8 @@
allOf:
- $ref: /schemas/thermal/qcom-tsens.yaml#
+ '#power-domain-cells': false
+
required:
- compatible
- clocks
@@ -65,7 +67,6 @@
clock-names = "pxo", "cxo", "pll4";
#clock-cells = <1>;
#reset-cells = <1>;
- #power-domain-cells = <1>;
tsens: thermal-sensor {
compatible = "qcom,ipq8064-tsens";
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-ipq8074.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-ipq8074.yaml
index 2d44ddc..38b9e42 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-ipq8074.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-ipq8074.yaml
@@ -39,6 +39,7 @@
required:
- compatible
+ - '#power-domain-cells'
unevaluatedProperties: false
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-mdm9607.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-mdm9607.yaml
new file mode 100644
index 0000000..d7da30b
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-mdm9607.yaml
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,gcc-mdm9607.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Global Clock & Reset Controller
+
+maintainers:
+ - Stephen Boyd <sboyd@kernel.org>
+ - Taniya Das <quic_tdas@quicinc.com>
+
+description: |
+ Qualcomm global clock control module provides the clocks, resets and power
+ domains.
+
+ See also::
+ include/dt-bindings/clock/qcom,gcc-mdm9607.h
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+properties:
+ compatible:
+ enum:
+ - qcom,gcc-mdm9607
+
+required:
+ - compatible
+ - '#power-domain-cells'
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ clock-controller@900000 {
+ compatible = "qcom,gcc-mdm9607";
+ reg = <0x900000 0x4000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-mdm9615.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-mdm9615.yaml
new file mode 100644
index 0000000..418dea3
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-mdm9615.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,gcc-mdm9615.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Global Clock & Reset Controller
+
+maintainers:
+ - Stephen Boyd <sboyd@kernel.org>
+ - Taniya Das <quic_tdas@quicinc.com>
+
+description: |
+ Qualcomm global clock control module provides the clocks, resets and power
+ domains.
+
+ See also::
+ include/dt-bindings/clock/qcom,gcc-mdm9615.h
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+properties:
+ compatible:
+ enum:
+ - qcom,gcc-mdm9615
+
+ clocks:
+ items:
+ - description: CXO clock
+ - description: PLL4 from LLC
+
+ '#power-domain-cells': false
+
+required:
+ - compatible
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ clock-controller@900000 {
+ compatible = "qcom,gcc-mdm9615";
+ reg = <0x900000 0x4000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ clocks = <&cxo_board>,
+ <&lcc_pll4>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8660.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8660.yaml
index c9e9855..e03b6d0 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8660.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8660.yaml
@@ -34,6 +34,8 @@
- const: pxo
- const: cxo
+ '#power-domain-cells': false
+
required:
- compatible
@@ -47,7 +49,6 @@
reg = <0x900000 0x4000>;
#clock-cells = <1>;
#reset-cells = <1>;
- #power-domain-cells = <1>;
clocks = <&pxo_board>, <&cxo_board>;
clock-names = "pxo", "cxo";
};
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8909.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8909.yaml
index b914625..ce1f5a6 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8909.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8909.yaml
@@ -42,6 +42,7 @@
- compatible
- clocks
- clock-names
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8916.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8916.yaml
index ad84c0f..258b6b9 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8916.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8916.yaml
@@ -48,6 +48,7 @@
required:
- compatible
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8953.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8953.yaml
index fe9fd4c..fe1f5f3 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8953.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8953.yaml
@@ -42,6 +42,7 @@
- compatible
- clocks
- clock-names
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8974.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8974.yaml
index 1927aec..929fafc 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8974.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8974.yaml
@@ -41,6 +41,7 @@
required:
- compatible
+ - '#power-domain-cells'
unevaluatedProperties: false
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8976.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8976.yaml
index 62d6f1f..cd49704 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8976.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8976.yaml
@@ -49,6 +49,7 @@
- clocks
- clock-names
- vdd_gfx-supply
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8994.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8994.yaml
index 8f0f20c..10afe98 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8994.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8994.yaml
@@ -7,7 +7,7 @@
title: Qualcomm Global Clock & Reset Controller on MSM8994
maintainers:
- - Konrad Dybcio <konrad.dybcio@somainline.org>
+ - Konrad Dybcio <konradybcio@kernel.org>
description: |
Qualcomm global clock control module provides the clocks, resets and power
@@ -35,6 +35,7 @@
- compatible
- clocks
- clock-names
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8996.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8996.yaml
index 97523cc..013fd07 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8996.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8996.yaml
@@ -50,6 +50,7 @@
required:
- compatible
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8998.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8998.yaml
index 58f7fb2..abae658 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8998.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8998.yaml
@@ -38,6 +38,7 @@
- compatible
- clocks
- clock-names
+ - '#power-domain-cells'
allOf:
- $ref: qcom,gcc.yaml#
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-other.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-other.yaml
deleted file mode 100644
index 7d05f0f..0000000
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-other.yaml
+++ /dev/null
@@ -1,43 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/clock/qcom,gcc-other.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: Qualcomm Global Clock & Reset Controller
-
-maintainers:
- - Stephen Boyd <sboyd@kernel.org>
- - Taniya Das <quic_tdas@quicinc.com>
-
-description: |
- Qualcomm global clock control module provides the clocks, resets and power
- domains.
-
- See also::
- include/dt-bindings/clock/qcom,gcc-msm8953.h
- include/dt-bindings/clock/qcom,gcc-mdm9607.h
-
-allOf:
- - $ref: qcom,gcc.yaml#
-
-properties:
- compatible:
- enum:
- - qcom,gcc-mdm9607
-
-required:
- - compatible
-
-unevaluatedProperties: false
-
-examples:
- - |
- clock-controller@900000 {
- compatible = "qcom,gcc-mdm9607";
- reg = <0x900000 0x4000>;
- #clock-cells = <1>;
- #reset-cells = <1>;
- #power-domain-cells = <1>;
- };
-...
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-qcm2290.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-qcm2290.yaml
index c9bec46..38c4c8c 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-qcm2290.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-qcm2290.yaml
@@ -33,6 +33,7 @@
