document on perf security, more Italian translations, more
improvements to the memory-management docs, improvements to the
pathname lookup documentation, and the usual array of smaller
fixes.
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Merge tag 'docs-5.0' of git://git.lwn.net/linux
Pull documentation update from Jonathan Corbet:
"A fairly normal cycle for documentation stuff. We have a new document
on perf security, more Italian translations, more improvements to the
memory-management docs, improvements to the pathname lookup
documentation, and the usual array of smaller fixes.
As is often the case, there are a few reaches outside of
Documentation/ to adjust kerneldoc comments"
* tag 'docs-5.0' of git://git.lwn.net/linux: (38 commits)
docs: improve pathname-lookup document structure
configfs: fix wrong name of struct in documentation
docs/mm-api: link slab_common.c to "The Slab Cache" section
slab: make kmem_cache_create{_usercopy} description proper kernel-doc
doc:process: add links where missing
docs/core-api: make mm-api.rst more structured
x86, boot: documentation whitespace fixup
Documentation: devres: note checking needs when converting
doc🇮🇹 add some process/* translations
doc🇮🇹 fixes in process/1.Intro
Documentation: convert path-lookup from markdown to resturctured text
Documentation/admin-guide: update admin-guide index.rst
Documentation/admin-guide: introduce perf-security.rst file
scripts/kernel-doc: Fix struct and struct field attribute processing
Documentation: dev-tools: Fix typos in index.rst
Correct gen_init_cpio tool's documentation
Document /proc/pid PID reuse behavior
Documentation: update path-lookup.md for parallel lookups
Documentation: Use "while" instead of "whilst"
dmaengine: Add mailing list address to the documentation
...
Pull cgroup updates from Tejun Heo:
- Waiman's cgroup2 cpuset support has been finally merged closing one
of the last remaining feature gaps.
- cgroup.procs could show non-leader threads when cgroup2 threaded mode
was used in certain ways. I forgot to push the fix during the last
cycle.
- A patch to fix mount option parsing when all mount options have been
consumed by someone else (LSM).
- cgroup_no_v1 boot param can now block named cgroup1 hierarchies too.
* 'for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup: Add named hierarchy disabling to cgroup_no_v1 boot param
cgroup: fix parsing empty mount option string
cpuset: Remove set but not used variable 'cs'
cgroup: fix CSS_TASK_ITER_PROCS
cgroup: Add .__DEBUG__. prefix to debug file names
cpuset: Minor cgroup2 interface updates
cpuset: Expose cpuset.cpus.subpartitions with cgroup_debug
cpuset: Add documentation about the new "cpuset.sched.partition" flag
cpuset: Use descriptive text when reading/writing cpuset.sched.partition
cpuset: Expose cpus.effective and mems.effective on cgroup v2 root
cpuset: Make generate_sched_domains() work with partition
cpuset: Make CPU hotplug work with partition
cpuset: Track cpusets that use parent's effective_cpus
cpuset: Add an error state to cpuset.sched.partition
cpuset: Add new v2 cpuset.sched.partition flag
cpuset: Simply allocation and freeing of cpumasks
cpuset: Define data structures to support scheduling partition
cpuset: Enable cpuset controller in default hierarchy
cgroup: remove unnecessary unlikely()
- switch to generated syscall table
- switch ptrace to regsets, use regsets for core dumps
- complete tracehook implementation
- add syscall tracepoints support
- add jumplabels support
- add memtest support
- drop unused/duplicated code from entry.S, ptrace.c, coprocessor.S,
elf.h and syscall.h
- clean up warnings caused by WSR/RSR macros
- clean up DTC warnings about SPI controller node names in xtfpga.dtsi
- simplify coprocessor.S
- get rid of explicit 'l32r' instruction usage in assembly
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Merge tag 'xtensa-20181228' of git://github.com/jcmvbkbc/linux-xtensa
Pull Xtensa updates from Max Filippov:
- switch to generated syscall table
- switch ptrace to regsets, use regsets for core dumps
- complete tracehook implementation
- add syscall tracepoints support
- add jumplabels support
- add memtest support
- drop unused/duplicated code from entry.S, ptrace.c, coprocessor.S,
elf.h and syscall.h
- clean up warnings caused by WSR/RSR macros
- clean up DTC warnings about SPI controller node names in xtfpga.dtsi
- simplify coprocessor.S
- get rid of explicit 'l32r' instruction usage in assembly
* tag 'xtensa-20181228' of git://github.com/jcmvbkbc/linux-xtensa: (25 commits)
xtensa: implement jump_label support
xtensa: implement syscall tracepoints
xtensa: implement tracehook functions and enable HAVE_ARCH_TRACEHOOK
xtensa: enable CORE_DUMP_USE_REGSET
xtensa: implement TIE regset
xtensa: implement task_user_regset_view
xtensa: call do_syscall_trace_{enter,leave} selectively
xtensa: use NO_SYSCALL instead of -1
xtensa: define syscall_get_arch()
Move EM_XTENSA to uapi/linux/elf-em.h
xtensa: support memtest
xtensa: don't use l32r opcode directly
xtensa: xtfpga.dtsi: fix dtc warnings about SPI
xtensa: don't clear cpenable unconditionally on release
xtensa: simplify coprocessor.S
xtensa: clean up WSR*/RSR*/get_sr/set_sr
xtensa: drop unused declarations from elf.h
xtensa: clean up syscall.h
xtensa: drop unused coprocessor helper functions
xtensa: drop custom PTRACE_{PEEK,POKE}{TEXT,DATA}
...
Here is the nds32 patch set based on 4.20-rc1.
Contained in here are
1. Perf support
2. Power management support
3. FPU support
4. Hardware prefetcher support
5. Build error fixed
6. Performance enhancement
These are the LTP20170427 testing results.
Total Tests: 1902
Total Skipped Tests: 603
Total Failures: 410
Kernel Version: 4.20.0-rc1-00016-ge0db606bc023
Machine Architecture: nds32
Hostname: greentime-d15-ae3xx
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Merge tag 'nds32-for-linus-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux
Pull nds32 updates from Greentime Hu:
- Perf support
- Power management support
- FPU support
- Hardware prefetcher support
- Build error fixed
- Performance enhancement
* tag 'nds32-for-linus-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux:
nds32: support hardware prefetcher
nds32: Fix the items of hwcap_str ordering issue.
math-emu/soft-fp.h: (_FP_ROUND_ZERO) cast 0 to void to fix warning
math-emu/op-2.h: Use statement expressions to prevent negative constant shift
nds32: support denormalized result through FP emulator
nds32: Support FP emulation
nds32: nds32 FPU port
nds32: Remove duplicated include from pm.c
nds32: Power management for nds32
nds32: Add document for NDS32 PMU.
nds32: Add perf call-graph support.
nds32: Perf porting
nds32: Fix bug in bitfield.h
nds32: Fix gcc 8.0 compiler option incompatible.
nds32: Fill all TLB entries with kernel image mapping
nds32: Remove the redundant assignment
Here is the big set of char and misc driver patches for 4.21-rc1.
Lots of different types of driver things in here, as this tree seems to
be the "collection of various driver subsystems not big enough to have
their own git tree" lately.
Anyway, some highlights of the changes in here:
- binderfs: is it a rule that all driver subsystems will eventually
grow to have their own filesystem? Binder now has one to handle the
use of it in containerized systems. This was discussed at the
Plumbers conference a few months ago and knocked into mergable shape
very fast by Christian Brauner. Who also has signed up to be
another binder maintainer, showing a distinct lack of good judgement :)
- binder updates and fixes
- mei driver updates
- fpga driver updates and additions
- thunderbolt driver updates
- soundwire driver updates
- extcon driver updates
- nvmem driver updates
- hyper-v driver updates
- coresight driver updates
- pvpanic driver additions and reworking for more device support
- lp driver updates. Yes really, it's _finally_ moved to the proper
parallal port driver model, something I never thought I would see
happen. Good stuff.
- other tiny driver updates and fixes.
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here is the big set of char and misc driver patches for 4.21-rc1.
Lots of different types of driver things in here, as this tree seems
to be the "collection of various driver subsystems not big enough to
have their own git tree" lately.
Anyway, some highlights of the changes in here:
- binderfs: is it a rule that all driver subsystems will eventually
grow to have their own filesystem? Binder now has one to handle the
use of it in containerized systems.
This was discussed at the Plumbers conference a few months ago and
knocked into mergable shape very fast by Christian Brauner. Who
also has signed up to be another binder maintainer, showing a
distinct lack of good judgement :)
- binder updates and fixes
- mei driver updates
- fpga driver updates and additions
- thunderbolt driver updates
- soundwire driver updates
- extcon driver updates
- nvmem driver updates
- hyper-v driver updates
- coresight driver updates
- pvpanic driver additions and reworking for more device support
- lp driver updates. Yes really, it's _finally_ moved to the proper
parallal port driver model, something I never thought I would see
happen. Good stuff.
- other tiny driver updates and fixes.
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (116 commits)
MAINTAINERS: add another Android binder maintainer
intel_th: msu: Fix an off-by-one in attribute store
stm class: Add a reference to the SyS-T document
stm class: Fix a module refcount leak in policy creation error path
char: lp: use new parport device model
char: lp: properly count the lp devices
char: lp: use first unused lp number while registering
char: lp: detach the device when parallel port is removed
char: lp: introduce list to save port number
bus: qcom: remove duplicated include from qcom-ebi2.c
VMCI: Use memdup_user() rather than duplicating its implementation
char/rtc: Use of_node_name_eq for node name comparisons
misc: mic: fix a DMA pool free failure
ptp: fix an IS_ERR() vs NULL check
genwqe: Fix size check
binder: implement binderfs
binder: fix use-after-free due to ksys_close() during fdget()
bus: fsl-mc: remove duplicated include files
bus: fsl-mc: explicitly define the fsl_mc_command endianness
misc: ti-st: make array read_ver_cmd static, shrinks object size
...
Here is the "big" set of driver core patches for 4.21-rc1.
It's not really big, just a number of small changes for some reported
issues, some documentation updates to hopefully make it harder for
people to abuse the driver model, and some other minor cleanups.
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the "big" set of driver core patches for 4.21-rc1.
It's not really big, just a number of small changes for some reported
issues, some documentation updates to hopefully make it harder for
people to abuse the driver model, and some other minor cleanups.
All of these have been in linux-next for a while with no reported
issues"
* tag 'driver-core-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
mm, memory_hotplug: update a comment in unregister_memory()
component: convert to DEFINE_SHOW_ATTRIBUTE
sysfs: Disable lockdep for driver bind/unbind files
driver core: Add missing dev->bus->need_parent_lock checks
kobject: return error code if writing /sys/.../uevent fails
driver core: Move async_synchronize_full call
driver core: platform: Respect return code of platform_device_register_full()
kref/kobject: Improve documentation
drivers/base/memory.c: Use DEVICE_ATTR_RO and friends
driver core: Replace simple_strto{l,ul} by kstrtou{l,ul}
kernfs: Improve kernfs_notify() poll notification latency
kobject: Fix warnings in lib/kobject_uevent.c
kobject: drop unnecessary cast "%llu" for u64
driver core: fix comments for device_block_probing()
driver core: Replace simple_strtol by kstrtoint
Here is the big staging and iio driver pull request for 4.21-rc1.
Lots and lots of tiny patches here, nothing major at all. Which is
good, tiny cleanups is nice to see. No new huge driver removal or
addition, this release cycle, although there are lots of good IIO driver
changes, addtions, and movement from staging into the "real" part of the
kernel, which is always great.
Full details are in the shortlog, and all of these have been in
linux-next for a while with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging/IIO driver updates from Greg KH:
"Here is the big staging and iio driver pull request for 4.21-rc1.
Lots and lots of tiny patches here, nothing major at all. Which is
good, tiny cleanups is nice to see. No new huge driver removal or
addition, this release cycle, although there are lots of good IIO
driver changes, addtions, and movement from staging into the "real"
part of the kernel, which is always great.
Full details are in the shortlog, and all of these have been in
linux-next for a while with no reported issues"
* tag 'staging-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (553 commits)
staging: mt7621-mmc: Correct spelling mistakes in comments
staging: wilc1000: fix missing read_write setting when reading data
mt7621-mmc: char * array declaration might be better as static const
mt7621-mmc: return statement in void function unnecessary
mt7621-mmc: Alignment should match open parenthesis
mt7621-mmc: Removed unnecessary blank lines
mt7621-mmc: Fix some coding style issues
staging: android: ashmem: doc: Fix spelling
staging: rtl8188eu: cleanup brace coding style issues
staging: rtl8188eu: add spaces around '&' in rtw_mlme_ext.c
staging: rtl8188eu: change return type of is_basicrate() to bool
staging: rtl8188eu: simplify null array initializations
staging: rtl8188eu: change order of declarations to improve readability
staging: rtl8188eu: make some arrays static in rtw_mlme_ext.c
staging: rtl8188eu: constify some arrays
staging: rtl8188eu: convert unsigned char arrays to u8
staging: rtl8188eu: remove redundant declaration in rtw_mlme_ext.c
staging: rtl8188eu: remove unused arrays WFD_OUI and WMM_INFO_OUI
staging: rtl8188eu: remove unnecessary parentheses in rtw_mlme_ext.c
staging: rtl8188eu: remove unnecessary comments in rtw_mlme_ext.c
...
Here is the large TTY/Serial driver set of patches for 4.21-rc1.
A number of small serial driver changes along with some good tty core
fixes for long-reported issues with locking. There is also a new
console font added to the tree, for high-res screens, so that should be
helpful for many.
The last patch in the series is a revert of an older one in the tree, it
came late but it resolves a reported issue that linux-next was having
for some people.
Full details are in the shortlog, and all of these, with the exception
of the revert, have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver updates from Greg KH:
"Here is the large TTY/Serial driver set of patches for 4.21-rc1.
A number of small serial driver changes along with some good tty core
fixes for long-reported issues with locking. There is also a new
console font added to the tree, for high-res screens, so that should
be helpful for many.
The last patch in the series is a revert of an older one in the tree,
it came late but it resolves a reported issue that linux-next was
having for some people.
Full details are in the shortlog, and all of these, with the exception
of the revert, have been in linux-next for a while with no reported
issues"
* tag 'tty-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (85 commits)
Revert "serial: 8250: Default SERIAL_OF_PLATFORM to SERIAL_8250"
serial: sccnxp: Allow to use non-standard baud rates
serial: sccnxp: Adds a delay between sequential read/write cycles
tty: serial: qcom_geni_serial: Fix UART hang
tty: serial: qcom_geni_serial: Fix wrap around of TX buffer
serial: max310x: Fix tx_empty() callback
dt-bindings: serial: sh-sci: Document r8a774c0 bindings
dt-bindings: serial: sh-sci: Document r8a774a1 bindings
Fonts: New Terminus large console font
dt-bindings: serial: lpuart: add imx8qxp compatible string
serial: uartps: Fix interrupt mask issue to handle the RX interrupts properly
serial: uartps: Fix error path when alloc failed
serial: uartps: Check if the device is a console
serial: uartps: Add the device_init_wakeup
tty: serial: samsung: Increase maximum baudrate
tty: serial: samsung: Properly set flags in autoCTS mode
tty: Use of_node_name_{eq,prefix} for node name comparisons
tty/serial: do not free trasnmit buffer page under port lock
serial: 8250: Rate limit serial port rx interrupts during input overruns
dt-bindings: serial: 8250: Add rate limit for serial port input overruns
...
Here is the big set of USB and PHY driver patches for 4.21-rc1.
All of the usual bits are in here:
- loads of USB gadget driver updates and additions
- new device ids
- phy driver updates
- xhci reworks and new features
- typec updates
Full details are in the shortlog.
All of these have been in linux-next for a long time with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/PHY updates from Greg KH:
"Here is the big set of USB and PHY driver patches for 4.21-rc1.
All of the usual bits are in here:
- loads of USB gadget driver updates and additions
- new device ids
- phy driver updates
- xhci reworks and new features
- typec updates
Full details are in the shortlog.
All of these have been in linux-next for a long time with no reported
issues"
* tag 'usb-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (142 commits)
USB: serial: option: add Fibocom NL678 series
cdc-acm: fix abnormal DATA RX issue for Mediatek Preloader.
usb: r8a66597: Fix a possible concurrency use-after-free bug in r8a66597_endpoint_disable()
usb: typec: tcpm: Extend the matching rules on PPS APDO selection
usb: typec: Improve Alt Mode documentation
usb: musb: dsps: fix runtime pm for peripheral mode
usb: musb: dsps: fix otg state machine
USB: serial: pl2303: add ids for Hewlett-Packard HP POS pole displays
usb: renesas_usbhs: add support for RZ/G2E
usb: ehci-omap: Fix deferred probe for phy handling
usb: roles: Add a description for the class to Kconfig
usb: renesas_usbhs: mark PM functions as __maybe_unused
usb: core: Remove unnecessary memset()
usb: host: isp1362-hcd: convert to DEFINE_SHOW_ATTRIBUTE
phy: qcom-qmp: Expose provided clocks to DT
dt-bindings: phy-qcom-qmp: Move #clock-cells to child
phy: qcom-qmp: Utilize fully-specified DT registers
dt-bindings: phy-qcom-qmp: Fix register underspecification
phy: ti: fix semicolon.cocci warnings
phy: dphy: Add configuration helpers
...
* New core support
- battery internal resistance
- battery OCV capacity lookup table
- support for custom sysfs attributes
* Convert all drivers to use power-supply core support for custom sysfs attributes
* bq24190-charger: bq24196 support
* axp20x-charger: AXP813 support
* sc27xx-battery: new fuel gauge driver
* gpio-poweroff: support for specific active and inactive delays
* Misc fixes
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Merge tag 'for-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
Pull power supply and reset updates from Sebastian Reichel:
- New core support:
- battery internal resistance
- battery OCV capacity lookup table
- support for custom sysfs attributes
- Convert all drivers to use power-supply core support for custom sysfs
attributes
- bq24190-charger: bq24196 support
- axp20x-charger: AXP813 support
- sc27xx-battery: new fuel gauge driver
- gpio-poweroff: support for specific active and inactive delays
- Misc fixes
* tag 'for-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (53 commits)
power: supply: bq25890: fix BAT_COMP field definition
power: supply: gpio-charger: Do not use deprecated POWER_SUPPLY_TYPE_USB_*
power: supply: ds2781: switch to devm_power_supply_register
power: supply: ds2780: switch to devm_power_supply_register
power: supply: ds2781: fix race-condition in bin attribute registration
power: supply: ds2780: fix race-condition in bin attribute registration
power: supply: pcf50633: fix race-condition in sysfs registration
power: supply: charger-manager: fix race-condition in sysfs registration
power: supply: charger-manager: simplify generation of sysfs attribute group name
power: supply: bq24257: fix race-condition in sysfs registration
power: supply: bq24190_charger: fix race-condition in sysfs registration
power: supply: lp8788: fix race-condition in sysfs registration
power: supply: ds2781: fix race-condition in sysfs registration
power: supply: ds2780: fix race-condition in sysfs registration
power: supply: bq2415x: fix race-condition in sysfs registration
power: supply: core: add support for custom sysfs attributes
power: supply: sc27xx: Save last battery capacity
power: reset: at91-poweroff: move shdwc related data to one structure
power: supply: sc27xx: Add suspend/resume interfaces
power: supply: sc27xx: Add fuel gauge low voltage alarm
...
Pull Devicetree updates from Rob Herring:
"The biggest highlight here is the start of using json-schema for DT
bindings. Being able to validate bindings has been discussed for years
with little progress.
- Initial support for DT bindings using json-schema language. This is
the start of converting DT bindings from free-form text to a
structured format.
- Reworking of initrd address initialization. This moves to using the
phys address instead of virt addr in the DT parsing code. This
rework was motivated by CONFIG_DEV_BLK_INITRD causing unnecessary
rebuilding of lots of files.
- Fix stale phandle entries in phandle cache
- DT overlay validation improvements. This exposed several memory
leak bugs which have been fixed.
- Use node name and device_type helper functions in DT code
- Last remaining conversions to using %pOFn printk specifier instead
of device_node.name directly
- Create new common RTC binding doc and move all trivial RTC devices
out of trivial-devices.txt.
- New bindings for Freescale MAG3110 magnetometer, Cadence Sierra
PHY, and Xen shared memory
- Update dtc to upstream version v1.4.7-57-gf267e674d145"
* tag 'devicetree-for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (68 commits)
of: __of_detach_node() - remove node from phandle cache
of: of_node_get()/of_node_put() nodes held in phandle cache
gpio-omap.txt: add reg and interrupts properties
dt-bindings: mrvl,intc: fix a trivial typo
dt-bindings: iio: magnetometer: add dt-bindings for freescale mag3110
dt-bindings: Convert trivial-devices.txt to json-schema
dt-bindings: arm: mrvl: amend Browstone compatible string
dt-bindings: arm: Convert Tegra board/soc bindings to json-schema
dt-bindings: arm: Convert ZTE board/soc bindings to json-schema
dt-bindings: arm: Add missing Xilinx boards
dt-bindings: arm: Convert Xilinx board/soc bindings to json-schema
dt-bindings: arm: Convert VIA board/soc bindings to json-schema
dt-bindings: arm: Convert ST STi board/soc bindings to json-schema
dt-bindings: arm: Convert SPEAr board/soc bindings to json-schema
dt-bindings: arm: Convert CSR SiRF board/soc bindings to json-schema
dt-bindings: arm: Convert QCom board/soc bindings to json-schema
dt-bindings: arm: Convert TI nspire board/soc bindings to json-schema
dt-bindings: arm: Convert TI davinci board/soc bindings to json-schema
dt-bindings: arm: Convert Calxeda board/soc bindings to json-schema
dt-bindings: arm: Convert Altera board/soc bindings to json-schema
...
Core changes:
- Some core changes are already in outside of this pull
request as they came through the regulator tree, most
notably devm_gpiod_unhinge() that removes devres refcount
management from a GPIO descriptor. This is needed in
subsystems such as regulators where the regulator core
need to take over the reference counting and lifecycle
management for a GPIO descriptor.
- We dropped devm_gpiochip_remove() and devm_gpio_chip_match()
as nothing needs it. We can bring it back if need be.
- Add a global TODO so people see where we are going. This
helps setting the direction now that we are two GPIO
maintainers.
- Handle the MMC CD/WP properties in the device tree core.
(The bulk of patches activating this code is already
merged through the MMC/SD tree.)
- Augment gpiochip_request_own_desc() to pass a flag so
we as gpiochips can request lines as active low or open
drain etc even from ourselves.
New drivers:
- New driver for Cadence GPIO blocks.
- New driver for Atmel SAMA5D2 PIOBU GPIO lines.
Driver improvements:
- A major refactoring of the PCA953x driver - this driver has
been around for ages, and is now modernized to reduce code
duplication that has stacked up and is using regmap to read
write and cache registers.
- Intel drivers are now maintained in a separate tree and
start with a round of cleanups and unifications.
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Merge tag 'gpio-v4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO updates from Linus Walleij:
"This is the bulk of GPIO changes for the v4.21 kernel series.
Core changes:
- Some core changes are already in outside of this pull request as
they came through the regulator tree, most notably
devm_gpiod_unhinge() that removes devres refcount management from a
GPIO descriptor. This is needed in subsystems such as regulators
where the regulator core need to take over the reference counting
and lifecycle management for a GPIO descriptor.
- We dropped devm_gpiochip_remove() and devm_gpio_chip_match() as
nothing needs it. We can bring it back if need be.
- Add a global TODO so people see where we are going. This helps
setting the direction now that we are two GPIO maintainers.
- Handle the MMC CD/WP properties in the device tree core. (The bulk
of patches activating this code is already merged through the
MMC/SD tree.)
- Augment gpiochip_request_own_desc() to pass a flag so we as
gpiochips can request lines as active low or open drain etc even
from ourselves.
New drivers:
- New driver for Cadence GPIO blocks.
- New driver for Atmel SAMA5D2 PIOBU GPIO lines.
Driver improvements:
- A major refactoring of the PCA953x driver - this driver has been
around for ages, and is now modernized to reduce code duplication
that has stacked up and is using regmap to read write and cache
registers.
- Intel drivers are now maintained in a separate tree and start with
a round of cleanups and unifications"
* tag 'gpio-v4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (99 commits)
gpio: sama5d2-piobu: Depend on OF_GPIO
gpio: Add Cadence GPIO driver
dt-bindings: gpio: Add bindings for Cadence GPIO
gpiolib-acpi: remove unused variable 'err', cleans up build warning
gpio: mxs: read pin level directly instead of using .get
gpio: aspeed: remove duplicated statement
gpio: add driver for SAMA5D2 PIOBU pins
dt-bindings: arm: atmel: describe SECUMOD usage as a GPIO controller
gpio/mmc/of: Respect polarity in the device tree
dt-bindings: gpio: rcar: Add r8a774c0 (RZ/G2E) support
memory: omap-gpmc: Get the header of the enum
ARM: omap1: Fix new user of gpiochip_request_own_desc()
gpio: pca953x: Add regmap dependency for PCA953x driver
gpio: raspberrypi-exp: decrease refcount on firmware dt node
gpiolib: Fix return value of gpio_to_desc() stub if !GPIOLIB
gpio: pca953x: Restore registers after suspend/resume cycle
gpio: pca953x: Zap single use of pca953x_read_single()
gpio: pca953x: Zap ad-hoc reg_output cache
gpio: pca953x: Zap ad-hoc reg_direction cache
gpio: pca953x: Perform basic regmap conversion
...
The big change in this series is for the most part automatic: Introducing
SENSOR[_DEVICE]_ATTR_{RO,RW,WO} variants and conversion of various drivers
to use it. This is similar to DEVICE_ATTR variants.
Other than that, we have
- Some conversions of S_<PERMS> with octal values, also automated
- Added support for Hygon Dhyana CPUs to k10temp driver
- Added support for STLM75 to lm75 driver
- B57891S0103 to ntc_thermistor
- Added pm-runtime support to ina3221 driver
- Support for PowerPC On-Chip Controller (OCC)
- Various minor bug fices and improvements
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Merge tag 'hwmon-for-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon updates from Guenter Roeck:
"The big change in this series is for the most part automatic:
Introducing SENSOR[_DEVICE]_ATTR_{RO,RW,WO} variants and conversion of
various drivers to use it. This is similar to DEVICE_ATTR variants.
Other than that, we have
- Some conversions of S_<PERMS> with octal values, also automated
- Added support for Hygon Dhyana CPUs to k10temp driver
- Added support for STLM75 to lm75 driver
- B57891S0103 to ntc_thermistor
- Added pm-runtime support to ina3221 driver
- Support for PowerPC On-Chip Controller (OCC)
- Various minor bug fices and improvements"
* tag 'hwmon-for-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (80 commits)
hwmon: (lm80) fix a missing check of bus read in lm80 probe
hwmon: (lm80) fix a missing check of the status of SMBus read
hwmon: (asus_atk0110) Fix debugfs_simple_attr.cocci warnings
hwmon: (ftsteutates) Use permission specific SENSOR[_DEVICE]_ATTR variants
hwmon: (fschmd) Use permission specific SENSOR[_DEVICE]_ATTR variants
hwmon: (emc6w201) Use permission specific SENSOR[_DEVICE]_ATTR variants
hwmon: (emc2103) Use permission specific SENSOR[_DEVICE]_ATTR variants
hwmon: (emc1403) Use permission specific SENSOR[_DEVICE]_ATTR variants
hwmon: (ds620) Use permission specific SENSOR[_DEVICE]_ATTR variants
hwmon: (ds1621) Use permission specific SENSOR[_DEVICE]_ATTR variants
hwmon: (dell-smm-hwmon) Use permission specific SENSOR[_DEVICE]_ATTR variants
hwmon: (da9055-hwmon) Use permission specific SENSOR[_DEVICE]_ATTR variants
hwmon: (da9052-hwmon) Use permission specific SENSOR[_DEVICE]_ATTR variants
hwmon: (coretemp) Replace S_<PERMS> with octal values
hwmon: (asus_atk0110) Replace S_<PERMS> with octal values
hwmon: (aspeed-pwm-tacho) Use permission specific SENSOR[_DEVICE]_ATTR variants
hwmon: (applesmc) Replace S_<PERMS> with octal values
hwmon: (amc6821) Use permission specific SENSOR[_DEVICE]_ATTR variants
hwmon: (adt7x10) Use permission specific SENSOR[_DEVICE]_ATTR variants
hwmon: (adt7475) Use permission specific SENSOR[_DEVICE]_ATTR variants
...
Merge misc updates from Andrew Morton:
- large KASAN update to use arm's "software tag-based mode"
- a few misc things
- sh updates
- ocfs2 updates
- just about all of MM
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (167 commits)
kernel/fork.c: mark 'stack_vm_area' with __maybe_unused
memcg, oom: notify on oom killer invocation from the charge path
mm, swap: fix swapoff with KSM pages
include/linux/gfp.h: fix typo
mm/hmm: fix memremap.h, move dev_page_fault_t callback to hmm
hugetlbfs: Use i_mmap_rwsem to fix page fault/truncate race
hugetlbfs: use i_mmap_rwsem for more pmd sharing synchronization
memory_hotplug: add missing newlines to debugging output
mm: remove __hugepage_set_anon_rmap()
include/linux/vmstat.h: remove unused page state adjustment macro
mm/page_alloc.c: allow error injection
mm: migrate: drop unused argument of migrate_page_move_mapping()
blkdev: avoid migration stalls for blkdev pages
mm: migrate: provide buffer_migrate_page_norefs()
mm: migrate: move migrate_page_lock_buffers()
mm: migrate: lock buffers before migrate_page_move_mapping()
mm: migration: factor out code to compute expected number of page references
mm, page_alloc: enable pcpu_drain with zone capability
kmemleak: add config to select auto scan
mm/page_alloc.c: don't call kasan_free_pages() at deferred mem init
...
- Cleanup BKOPS support
- Introduce MMC_CAP_SYNC_RUNTIME_PM
- slot-gpio: Delete legacy slot GPIO handling
MMC host:
- alcor: Add new mmc host driver for Alcor Micro PCI based cardreader
- bcm2835: Several improvements to better recover from errors
- jz4740: Rework and fixup pre|post_req support
- mediatek: Add support for SDIO IRQs
- meson-gx: Improve clock phase management
- meson-gx: Stop descriptor on errors
- mmci: Complete the sbc error path by sending a stop command
- renesas_sdhi/tmio: Fixup reset/resume operations
- renesas_sdhi: Add support for r8a774c0 and R7S9210
- renesas_sdhi: Whitelist R8A77990 SDHI
- renesas_sdhi: Fixup eMMC HS400 compatibility issues for H3 and M3-W
- rtsx_usb_sdmmc: Re-work card detection/removal support
- rtsx_usb_sdmmc: Re-work runtime PM support
- sdhci: Fix timeout loops for some variant drivers
- sdhci: Improve support for error handling due to failing commands
- sdhci-acpi/pci: Disable LED control for Intel BYT-based controllers
- sdhci_am654: Add new SDHCI variant driver to support TI's AM654 SOCs
- sdhci-of-esdhc: Add support for eMMC HS400 mode
- sdhci-omap: Fixup reset support
- sdhci-omap: Workaround errata regarding SDR104/HS200 tuning failures
- sdhci-msm: Fixup sporadic write transfers issues for SDR104/HS200
- sdhci-msm: Fixup dynamical clock gating issues
- various: Complete converting all hosts into using slot GPIO descriptors
Other:
- Move GPIO mmc platform data for mips/sh/arm to GPIO descriptors
- Add new Alcor Micro cardreader PCI driver
- Support runtime power management for memstick rtsx_usb_ms driver
- Use USB remote wakeups for card detection for rtsx_usb misc driver
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Merge tag 'mmc-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC updates from Ulf Hansson:
"This time, this pull request contains changes crossing subsystems and
archs/platforms, which is mainly because of a bigger modernization of
moving from legacy GPIO to GPIO descriptors for MMC (by Linus
Walleij).
Additionally, once again, I am funneling changes to
drivers/misc/cardreader/* and drivers/memstick/* through my MMC tree,
mostly due to that we lack a maintainer for these.
Summary:
MMC core:
- Cleanup BKOPS support
- Introduce MMC_CAP_SYNC_RUNTIME_PM
- slot-gpio: Delete legacy slot GPIO handling
MMC host:
- alcor: Add new mmc host driver for Alcor Micro PCI based cardreader
- bcm2835: Several improvements to better recover from errors
- jz4740: Rework and fixup pre|post_req support
- mediatek: Add support for SDIO IRQs
- meson-gx: Improve clock phase management
- meson-gx: Stop descriptor on errors
- mmci: Complete the sbc error path by sending a stop command
- renesas_sdhi/tmio: Fixup reset/resume operations
- renesas_sdhi: Add support for r8a774c0 and R7S9210
- renesas_sdhi: Whitelist R8A77990 SDHI
- renesas_sdhi: Fixup eMMC HS400 compatibility issues for H3 and M3-W
- rtsx_usb_sdmmc: Re-work card detection/removal support
- rtsx_usb_sdmmc: Re-work runtime PM support
- sdhci: Fix timeout loops for some variant drivers
- sdhci: Improve support for error handling due to failing commands
- sdhci-acpi/pci: Disable LED control for Intel BYT-based controllers
- sdhci_am654: Add new SDHCI variant driver to support TI's AM654 SOCs
- sdhci-of-esdhc: Add support for eMMC HS400 mode
- sdhci-omap: Fixup reset support
- sdhci-omap: Workaround errata regarding SDR104/HS200 tuning failures
- sdhci-msm: Fixup sporadic write transfers issues for SDR104/HS200
- sdhci-msm: Fixup dynamical clock gating issues
- various: Complete converting all hosts into using slot GPIO descriptors
Other:
- Move GPIO mmc platform data for mips/sh/arm to GPIO descriptors
- Add new Alcor Micro cardreader PCI driver
- Support runtime power management for memstick rtsx_usb_ms driver
- Use USB remote wakeups for card detection for rtsx_usb misc driver"
* tag 'mmc-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (99 commits)
mmc: mediatek: Add MMC_CAP_SDIO_IRQ support
mmc: renesas_sdhi_internal_dmac: Whitelist r8a774c0
dt-bindings: mmc: renesas_sdhi: Add r8a774c0 support
mmc: core: Cleanup BKOPS support
mmc: core: Drop redundant check in mmc_send_hpi_cmd()
mmc: sdhci-omap: Workaround errata regarding SDR104/HS200 tuning failures (i929)
dt-bindings: sdhci-omap: Add note for cpu_thermal
mmc: sdhci-acpi: Disable LED control for Intel BYT-based controllers
mmc: sdhci-pci: Disable LED control for Intel BYT-based controllers
mmc: sdhci: Add quirk to disable LED control
mmc: mmci: add variant property to set command stop bit
misc: alcor_pci: fix spelling mistake "invailid" -> "invalid"
mmc: meson-gx: add signal resampling
mmc: meson-gx: align default phase on soc vendor tree
mmc: meson-gx: remove useless lock
mmc: meson-gx: make sure the descriptor is stopped on errors
mmc: sdhci_am654: Add Initial Support for AM654 SDHCI driver
dt-bindings: mmc: sdhci-of-arasan: Add deprecated message for AM65
dt-bindings: mmc: sdhci-am654: Document bindings for the host controllers on TI's AM654 SOCs
mmc: sdhci-msm: avoid unused function warning
...
* Add support for the security features of nvdimm devices that
implement a security model similar to ATA hard drive security. The
security model supports locking access to the media at
device-power-loss, to be unlocked with a passphrase, and secure-erase
(crypto-scramble).
Unlike the ATA security case where the kernel expects device
security to be managed in a pre-OS environment, the libnvdimm security
implementation allows key provisioning and key-operations at OS
runtime. Keys are managed with the kernel's encrypted-keys facility to
provide data-at-rest security for the libnvdimm key material. The
usage model mirrors fscrypt key management, but is driven via
libnvdimm sysfs.
* Miscellaneous updates for api usage and comment fixes.
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Merge tag 'libnvdimm-for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm updates from Dan Williams:
"The vast bulk of this update is the new support for the security
capabilities of some nvdimms.
The userspace tooling for this capability is still a work in progress,
but the changes survive the existing libnvdimm unit tests. The changes
also pass manual checkout on hardware and the new nfit_test emulation
of the security capability.
The touches of the security/keys/ files have received the necessary
acks from Mimi and David. Those changes were necessary to allow for a
new generic encrypted-key type, and allow the nvdimm sub-system to
lookup key material referenced by the libnvdimm-sysfs interface.
Summary:
- Add support for the security features of nvdimm devices that
implement a security model similar to ATA hard drive security. The
security model supports locking access to the media at
device-power-loss, to be unlocked with a passphrase, and
secure-erase (crypto-scramble).
Unlike the ATA security case where the kernel expects device
security to be managed in a pre-OS environment, the libnvdimm
security implementation allows key provisioning and key-operations
at OS runtime. Keys are managed with the kernel's encrypted-keys
facility to provide data-at-rest security for the libnvdimm key
material. The usage model mirrors fscrypt key management, but is
driven via libnvdimm sysfs.
- Miscellaneous updates for api usage and comment fixes"
* tag 'libnvdimm-for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (21 commits)
libnvdimm/security: Quiet security operations
libnvdimm/security: Add documentation for nvdimm security support
tools/testing/nvdimm: add Intel DSM 1.8 support for nfit_test
tools/testing/nvdimm: Add overwrite support for nfit_test
tools/testing/nvdimm: Add test support for Intel nvdimm security DSMs
acpi/nfit, libnvdimm/security: add Intel DSM 1.8 master passphrase support
acpi/nfit, libnvdimm/security: Add security DSM overwrite support
acpi/nfit, libnvdimm: Add support for issue secure erase DSM to Intel nvdimm
acpi/nfit, libnvdimm: Add enable/update passphrase support for Intel nvdimms
acpi/nfit, libnvdimm: Add disable passphrase support to Intel nvdimm.
acpi/nfit, libnvdimm: Add unlock of nvdimm support for Intel DIMMs
acpi/nfit, libnvdimm: Add freeze security support to Intel nvdimm
acpi/nfit, libnvdimm: Introduce nvdimm_security_ops
keys-encrypted: add nvdimm key format type to encrypted keys
keys: Export lookup_user_key to external users
acpi/nfit, libnvdimm: Store dimm id as a member to struct nvdimm
libnvdimm, namespace: Replace kmemdup() with kstrndup()
libnvdimm, label: Switch to bitmap_zalloc()
ACPI/nfit: Adjust annotation for why return 0 if fail to find NFIT at start
libnvdimm, bus: Check id immediately following ida_simple_get
...
This is mostly update of the usual drivers: smarpqi, lpfc, qedi,
megaraid_sas, libsas, zfcp, mpt3sas, hisi_sas. Additionally, we have
a pile of annotation, unused variable and minor updates. The big API
change is the updates for Christoph's DMA rework which include
removing the DISABLE_CLUSTERING flag. And finally there are a couple
of target tree updates.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This is mostly update of the usual drivers: smarpqi, lpfc, qedi,
megaraid_sas, libsas, zfcp, mpt3sas, hisi_sas.
Additionally, we have a pile of annotation, unused variable and minor
updates.
The big API change is the updates for Christoph's DMA rework which
include removing the DISABLE_CLUSTERING flag.
And finally there are a couple of target tree updates"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (259 commits)
scsi: isci: request: mark expected switch fall-through
scsi: isci: remote_node_context: mark expected switch fall-throughs
scsi: isci: remote_device: Mark expected switch fall-throughs
scsi: isci: phy: Mark expected switch fall-through
scsi: iscsi: Capture iscsi debug messages using tracepoints
scsi: myrb: Mark expected switch fall-throughs
scsi: megaraid: fix out-of-bound array accesses
scsi: mpt3sas: mpt3sas_scsih: Mark expected switch fall-through
scsi: fcoe: remove set but not used variable 'port'
scsi: smartpqi: call pqi_free_interrupts() in pqi_shutdown()
scsi: smartpqi: fix build warnings
scsi: smartpqi: update driver version
scsi: smartpqi: add ofa support
scsi: smartpqi: increase fw status register read timeout
scsi: smartpqi: bump driver version
scsi: smartpqi: add smp_utils support
scsi: smartpqi: correct lun reset issues
scsi: smartpqi: correct volume status
scsi: smartpqi: do not offline disks for transient did no connect conditions
scsi: smartpqi: allow for larger raid maps
...
A huge update this time, but a lot of that is just consolidating or
removing code:
- provide a common DMA_MAPPING_ERROR definition and avoid indirect
calls for dma_map_* error checking
- use direct calls for the DMA direct mapping case, avoiding huge
retpoline overhead for high performance workloads
- merge the swiotlb dma_map_ops into dma-direct
- provide a generic remapping DMA consistent allocator for architectures
that have devices that perform DMA that is not cache coherent. Based
on the existing arm64 implementation and also used for csky now.
- improve the dma-debug infrastructure, including dynamic allocation
of entries (Robin Murphy)
- default to providing chaining scatterlist everywhere, with opt-outs
for the few architectures (alpha, parisc, most arm32 variants) that
can't cope with it
- misc sparc32 dma-related cleanups
- remove the dma_mark_clean arch hook used by swiotlb on ia64 and
replace it with the generic noncoherent infrastructure
- fix the return type of dma_set_max_seg_size (Niklas Söderlund)
- move the dummy dma ops for not DMA capable devices from arm64 to
common code (Robin Murphy)
- ensure dma_alloc_coherent returns zeroed memory to avoid kernel data
leaks through userspace. We already did this for most common
architectures, but this ensures we do it everywhere.
dma_zalloc_coherent has been deprecated and can hopefully be
removed after -rc1 with a coccinelle script.
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Merge tag 'dma-mapping-4.21' of git://git.infradead.org/users/hch/dma-mapping
Pull DMA mapping updates from Christoph Hellwig:
"A huge update this time, but a lot of that is just consolidating or
removing code:
- provide a common DMA_MAPPING_ERROR definition and avoid indirect
calls for dma_map_* error checking
- use direct calls for the DMA direct mapping case, avoiding huge
retpoline overhead for high performance workloads
- merge the swiotlb dma_map_ops into dma-direct
- provide a generic remapping DMA consistent allocator for
architectures that have devices that perform DMA that is not cache
coherent. Based on the existing arm64 implementation and also used
for csky now.
- improve the dma-debug infrastructure, including dynamic allocation
of entries (Robin Murphy)
- default to providing chaining scatterlist everywhere, with opt-outs
for the few architectures (alpha, parisc, most arm32 variants) that
can't cope with it
- misc sparc32 dma-related cleanups
- remove the dma_mark_clean arch hook used by swiotlb on ia64 and
replace it with the generic noncoherent infrastructure
- fix the return type of dma_set_max_seg_size (Niklas Söderlund)
- move the dummy dma ops for not DMA capable devices from arm64 to
common code (Robin Murphy)
- ensure dma_alloc_coherent returns zeroed memory to avoid kernel
data leaks through userspace. We already did this for most common
architectures, but this ensures we do it everywhere.
dma_zalloc_coherent has been deprecated and can hopefully be
removed after -rc1 with a coccinelle script"
* tag 'dma-mapping-4.21' of git://git.infradead.org/users/hch/dma-mapping: (73 commits)
dma-mapping: fix inverted logic in dma_supported
dma-mapping: deprecate dma_zalloc_coherent
dma-mapping: zero memory returned from dma_alloc_*
sparc/iommu: fix ->map_sg return value
sparc/io-unit: fix ->map_sg return value
arm64: default to the direct mapping in get_arch_dma_ops
PCI: Remove unused attr variable in pci_dma_configure
ia64: only select ARCH_HAS_DMA_COHERENT_TO_PFN if swiotlb is enabled
dma-mapping: bypass indirect calls for dma-direct
vmd: use the proper dma_* APIs instead of direct methods calls
dma-direct: merge swiotlb_dma_ops into the dma_direct code
dma-direct: use dma_direct_map_page to implement dma_direct_map_sg
dma-direct: improve addressability error reporting
swiotlb: remove dma_mark_clean
swiotlb: remove SWIOTLB_MAP_ERROR
ACPI / scan: Refactor _CCA enforcement
dma-mapping: factor out dummy DMA ops
dma-mapping: always build the direct mapping code
dma-mapping: move dma_cache_sync out of line
dma-mapping: move various slow path functions out of line
...
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Merge tag 'for-4.21/block-20181221' of git://git.kernel.dk/linux-block
Pull block updates from Jens Axboe:
"This is the main pull request for block/storage for 4.21.
Larger than usual, it was a busy round with lots of goodies queued up.
Most notable is the removal of the old IO stack, which has been a long
time coming. No new features for a while, everything coming in this
week has all been fixes for things that were previously merged.
This contains:
- Use atomic counters instead of semaphores for mtip32xx (Arnd)
- Cleanup of the mtip32xx request setup (Christoph)
- Fix for circular locking dependency in loop (Jan, Tetsuo)
- bcache (Coly, Guoju, Shenghui)
* Optimizations for writeback caching
* Various fixes and improvements
- nvme (Chaitanya, Christoph, Sagi, Jay, me, Keith)
* host and target support for NVMe over TCP
* Error log page support
* Support for separate read/write/poll queues
* Much improved polling
* discard OOM fallback
* Tracepoint improvements
- lightnvm (Hans, Hua, Igor, Matias, Javier)
* Igor added packed metadata to pblk. Now drives without metadata
per LBA can be used as well.
* Fix from Geert on uninitialized value on chunk metadata reads.
* Fixes from Hans and Javier to pblk recovery and write path.
* Fix from Hua Su to fix a race condition in the pblk recovery
code.
* Scan optimization added to pblk recovery from Zhoujie.
* Small geometry cleanup from me.
- Conversion of the last few drivers that used the legacy path to
blk-mq (me)
- Removal of legacy IO path in SCSI (me, Christoph)
- Removal of legacy IO stack and schedulers (me)
- Support for much better polling, now without interrupts at all.
blk-mq adds support for multiple queue maps, which enables us to
have a map per type. This in turn enables nvme to have separate
completion queues for polling, which can then be interrupt-less.
Also means we're ready for async polled IO, which is hopefully
coming in the next release.
- Killing of (now) unused block exports (Christoph)
- Unification of the blk-rq-qos and blk-wbt wait handling (Josef)
- Support for zoned testing with null_blk (Masato)
- sx8 conversion to per-host tag sets (Christoph)
- IO priority improvements (Damien)
- mq-deadline zoned fix (Damien)
- Ref count blkcg series (Dennis)
- Lots of blk-mq improvements and speedups (me)
- sbitmap scalability improvements (me)
- Make core inflight IO accounting per-cpu (Mikulas)
- Export timeout setting in sysfs (Weiping)
- Cleanup the direct issue path (Jianchao)
- Export blk-wbt internals in block debugfs for easier debugging
(Ming)
- Lots of other fixes and improvements"
* tag 'for-4.21/block-20181221' of git://git.kernel.dk/linux-block: (364 commits)
kyber: use sbitmap add_wait_queue/list_del wait helpers
sbitmap: add helpers for add/del wait queue handling
block: save irq state in blkg_lookup_create()
dm: don't reuse bio for flushes
nvme-pci: trace SQ status on completions
nvme-rdma: implement polling queue map
nvme-fabrics: allow user to pass in nr_poll_queues
nvme-fabrics: allow nvmf_connect_io_queue to poll
nvme-core: optionally poll sync commands
block: make request_to_qc_t public
nvme-tcp: fix spelling mistake "attepmpt" -> "attempt"
nvme-tcp: fix endianess annotations
nvmet-tcp: fix endianess annotations
nvme-pci: refactor nvme_poll_irqdisable to make sparse happy
nvme-pci: only set nr_maps to 2 if poll queues are supported
nvmet: use a macro for default error location
nvmet: fix comparison of a u16 with -1
blk-mq: enable IO poll if .nr_queues of type poll > 0
blk-mq: change blk_mq_queue_busy() to blk_mq_queue_inflight()
blk-mq: skip zero-queue maps in blk_mq_map_swqueue
...
This concludes the main part of the system call rework for 64-bit time_t,
which has spread over most of year 2018, the last six system calls being
- ppoll
- pselect6
- io_pgetevents
- recvmmsg
- futex
- rt_sigtimedwait
As before, nothing changes for 64-bit architectures, while 32-bit
architectures gain another entry point that differs only in the layout
of the timespec structure. Hopefully in the next release we can wire up
all 22 of those system calls on all 32-bit architectures, which gives
us a baseline version for glibc to start using them.
This does not include the clock_adjtime, getrusage/waitid, and
getitimer/setitimer system calls. I still plan to have new versions
of those as well, but they are not required for correct operation of
the C library since they can be emulated using the old 32-bit time_t
based system calls.
Aside from the system calls, there are also a few cleanups here,
removing old kernel internal interfaces that have become unused after
all references got removed. The arch/sh cleanups are part of this,
there were posted several times over the past year without a reaction
from the maintainers, while the corresponding changes made it into all
other architectures.
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Merge tag 'y2038-for-4.21' of ssh://gitolite.kernel.org:/pub/scm/linux/kernel/git/arnd/playground
Pull y2038 updates from Arnd Bergmann:
"More syscalls and cleanups
This concludes the main part of the system call rework for 64-bit
time_t, which has spread over most of year 2018, the last six system
calls being
- ppoll
- pselect6
- io_pgetevents
- recvmmsg
- futex
- rt_sigtimedwait
As before, nothing changes for 64-bit architectures, while 32-bit
architectures gain another entry point that differs only in the layout
of the timespec structure. Hopefully in the next release we can wire
up all 22 of those system calls on all 32-bit architectures, which
gives us a baseline version for glibc to start using them.
This does not include the clock_adjtime, getrusage/waitid, and
getitimer/setitimer system calls. I still plan to have new versions of
those as well, but they are not required for correct operation of the
C library since they can be emulated using the old 32-bit time_t based
system calls.
Aside from the system calls, there are also a few cleanups here,
removing old kernel internal interfaces that have become unused after
all references got removed. The arch/sh cleanups are part of this,
there were posted several times over the past year without a reaction
from the maintainers, while the corresponding changes made it into all
other architectures"
* tag 'y2038-for-4.21' of ssh://gitolite.kernel.org:/pub/scm/linux/kernel/git/arnd/playground:
timekeeping: remove obsolete time accessors
vfs: replace current_kernel_time64 with ktime equivalent
timekeeping: remove timespec_add/timespec_del
timekeeping: remove unused {read,update}_persistent_clock
sh: remove board_time_init() callback
sh: remove unused rtc_sh_get/set_time infrastructure
sh: sh03: rtc: push down rtc class ops into driver
sh: dreamcast: rtc: push down rtc class ops into driver
y2038: signal: Add compat_sys_rt_sigtimedwait_time64
y2038: signal: Add sys_rt_sigtimedwait_time32
y2038: socket: Add compat_sys_recvmmsg_time64
y2038: futex: Add support for __kernel_timespec
y2038: futex: Move compat implementation into futex.c
io_pgetevents: use __kernel_timespec
pselect6: use __kernel_timespec
ppoll: use __kernel_timespec
signal: Add restore_user_sigmask()
signal: Add set_user_sigmask()
David Rientjes has reported that commit 1860033237 ("mm: make
PR_SET_THP_DISABLE immediately active") has changed the way how we
report THPable VMAs to the userspace. Their monitoring tool is
triggering false alarms on PR_SET_THP_DISABLE tasks because it considers
an insufficient THP usage as a memory fragmentation resp. memory
pressure issue.
Before the said commit each newly created VMA inherited VM_NOHUGEPAGE
flag and that got exposed to the userspace via /proc/<pid>/smaps file.
This implementation had its downsides as explained in the commit message
but it is true that the userspace doesn't have any means to query for
the process wide THP enabled/disabled status.
PR_SET_THP_DISABLE is a process wide flag so it makes a lot of sense to
export in the process wide context rather than per-vma. Introduce a new
field to /proc/<pid>/status which export this status. If
PR_SET_THP_DISABLE is used then it reports false same as when the THP is
not compiled in. It doesn't consider the global THP status because we
already export that information via sysfs
Link: http://lkml.kernel.org/r/20181211143641.3503-4-mhocko@kernel.org
Fixes: 1860033237 ("mm: make PR_SET_THP_DISABLE immediately active")
Signed-off-by: Michal Hocko <mhocko@suse.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Reported-by: David Rientjes <rientjes@google.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Paul Oppenheimer <bepvte@gmail.com>
Cc: William Kucharski <william.kucharski@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Userspace falls short when trying to find out whether a specific memory
range is eligible for THP. There are usecases that would like to know
that
http://lkml.kernel.org/r/alpine.DEB.2.21.1809251248450.50347@chino.kir.corp.google.com
: This is used to identify heap mappings that should be able to fault thp
: but do not, and they normally point to a low-on-memory or fragmentation
: issue.
The only way to deduce this now is to query for hg resp. nh flags and
confronting the state with the global setting. Except that there is also
PR_SET_THP_DISABLE that might change the picture. So the final logic is
not trivial. Moreover the eligibility of the vma depends on the type of
VMA as well. In the past we have supported only anononymous memory VMAs
but things have changed and shmem based vmas are supported as well these
days and the query logic gets even more complicated because the
eligibility depends on the mount option and another global configuration
knob.
Simplify the current state and report the THP eligibility in
/proc/<pid>/smaps for each existing vma. Reuse
transparent_hugepage_enabled for this purpose. The original
implementation of this function assumes that the caller knows that the vma
itself is supported for THP so make the core checks into
__transparent_hugepage_enabled and use it for existing callers.
__show_smap just use the new transparent_hugepage_enabled which also
checks the vma support status (please note that this one has to be out of
line due to include dependency issues).
[mhocko@kernel.org: fix oops with NULL ->f_mapping]
Link: http://lkml.kernel.org/r/20181224185106.GC16738@dhcp22.suse.cz
Link: http://lkml.kernel.org/r/20181211143641.3503-3-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Paul Oppenheimer <bepvte@gmail.com>
Cc: William Kucharski <william.kucharski@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Patch series "THP eligibility reporting via proc".
This series of three patches aims at making THP eligibility reporting much
more robust and long term sustainable. The trigger for the change is a
regression report [2] and the long follow up discussion. In short the
specific application didn't have good API to query whether a particular
mapping can be backed by THP so it has used VMA flags to workaround that.
These flags represent a deep internal state of VMAs and as such they
should be used by userspace with a great deal of caution.
A similar has happened for [3] when users complained that VM_MIXEDMAP is
no longer set on DAX mappings. Again a lack of a proper API led to an
abuse.
The first patch in the series tries to emphasise that that the semantic of
flags might change and any application consuming those should be really
careful.
The remaining two patches provide a more suitable interface to address [2]
and provide a consistent API to query the THP status both for each VMA and
process wide as well. [1]
http://lkml.kernel.org/r/20181120103515.25280-1-mhocko@kernel.org [2]
http://lkml.kernel.org/r/http://lkml.kernel.org/r/alpine.DEB.2.21.1809241054050.224429@chino.kir.corp.google.com
[3] http://lkml.kernel.org/r/20181002100531.GC4135@quack2.suse.cz
This patch (of 3):
Even though vma flags exported via /proc/<pid>/smaps are explicitly
documented to be not guaranteed for future compatibility the warning
doesn't go far enough because it doesn't mention semantic changes to those
flags. And they are important as well because these flags are a deep
implementation internal to the MM code and the semantic might change at
any time.
Let's consider two recent examples:
http://lkml.kernel.org/r/20181002100531.GC4135@quack2.suse.cz
: commit e1fb4a0864 "dax: remove VM_MIXEDMAP for fsdax and device dax" has
: removed VM_MIXEDMAP flag from DAX VMAs. Now our testing shows that in the
: mean time certain customer of ours started poking into /proc/<pid>/smaps
: and looks at VMA flags there and if VM_MIXEDMAP is missing among the VMA
: flags, the application just fails to start complaining that DAX support is
: missing in the kernel.
http://lkml.kernel.org/r/alpine.DEB.2.21.1809241054050.224429@chino.kir.corp.google.com
: Commit 1860033237 ("mm: make PR_SET_THP_DISABLE immediately active")
: introduced a regression in that userspace cannot always determine the set
: of vmas where thp is ineligible.
: Userspace relies on the "nh" flag being emitted as part of /proc/pid/smaps
: to determine if a vma is eligible to be backed by hugepages.
: Previous to this commit, prctl(PR_SET_THP_DISABLE, 1) would cause thp to
: be disabled and emit "nh" as a flag for the corresponding vmas as part of
: /proc/pid/smaps. After the commit, thp is disabled by means of an mm
: flag and "nh" is not emitted.
: This causes smaps parsing libraries to assume a vma is eligible for thp
: and ends up puzzling the user on why its memory is not backed by thp.
In both cases userspace was relying on a semantic of a specific VMA flag.
The primary reason why that happened is a lack of a proper interface.
While this has been worked on and it will be fixed properly, it seems that
our wording could see some refinement and be more vocal about semantic
aspect of these flags as well.
Link: http://lkml.kernel.org/r/20181211143641.3503-2-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Acked-by: Jan Kara <jack@suse.cz>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Mike Rapoport <rppt@linux.ibm.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Paul Oppenheimer <bepvte@gmail.com>
Cc: William Kucharski <william.kucharski@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
If there are lots of write IO with flash device, it could have a
wearout problem of storage. To overcome the problem, admin needs
to design write limitation to guarantee flash health
for entire product life.
This patch creates a new knob "writeback_limit" for zram.
writeback_limit's default value is 0 so that it doesn't limit
any writeback. If admin want to measure writeback count in a
certain period, he could know it via /sys/block/zram0/bd_stat's
3rd column.
If admin want to limit writeback as per-day 400M, he could do it
like below.
MB_SHIFT=20
4K_SHIFT=12
echo $((400<<MB_SHIFT>>4K_SHIFT)) > \
/sys/block/zram0/writeback_limit.
If admin want to allow further write again, he could do it like below
echo 0 > /sys/block/zram0/writeback_limit
If admin want to see remaining writeback budget,
cat /sys/block/zram0/writeback_limit
The writeback_limit count will reset whenever you reset zram (e.g., system
reboot, echo 1 > /sys/block/zramX/reset) so keeping how many of writeback
happened until you reset the zram to allocate extra writeback budget in
next setting is user's job.
[minchan@kernel.org: v4]
Link: http://lkml.kernel.org/r/20181203024045.153534-8-minchan@kernel.org
Link: http://lkml.kernel.org/r/20181127055429.251614-8-minchan@kernel.org
Signed-off-by: Minchan Kim <minchan@kernel.org>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Joey Pabalinas <joeypabalinas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
bd_stat represents things that happened in the backing device. Currently
it supports bd_counts, bd_reads and bd_writes which are helpful to
understand wearout of flash and memory saving.
[minchan@kernel.org: v4]
Link: http://lkml.kernel.org/r/20181203024045.153534-7-minchan@kernel.org
Link: http://lkml.kernel.org/r/20181127055429.251614-7-minchan@kernel.org
Signed-off-by: Minchan Kim <minchan@kernel.org>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Joey Pabalinas <joeypabalinas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add a new feature "zram idle/huge page writeback". In the zram-swap use
case, zram usually has many idle/huge swap pages. It's pointless to keep
them in memory (ie, zram).
To solve this problem, this feature introduces idle/huge page writeback to
the backing device so the goal is to save more memory space on embedded
systems.
Normal sequence to use idle/huge page writeback feature is as follows,
while (1) {
# mark allocated zram slot to idle
echo all > /sys/block/zram0/idle
# leave system working for several hours
# Unless there is no access for some blocks on zram,
# they are still IDLE marked pages.
echo "idle" > /sys/block/zram0/writeback
or/and
echo "huge" > /sys/block/zram0/writeback
# write the IDLE or/and huge marked slot into backing device
# and free the memory.
}
Per the discussion at
https://lore.kernel.org/lkml/20181122065926.GG3441@jagdpanzerIV/T/#u,
This patch removes direct incommpressibe page writeback feature
(d2afd25114f4 ("zram: write incompressible pages to backing device")).
Below concerns from Sergey:
== &< ==
"IDLE writeback" is superior to "incompressible writeback".
"incompressible writeback" is completely unpredictable and uncontrollable;
it depens on data patterns and compression algorithms. While "IDLE
writeback" is predictable.
I even suspect, that, *ideally*, we can remove "incompressible writeback".
"IDLE pages" is a super set which also includes "incompressible" pages.
So, technically, we still can do "incompressible writeback" from "IDLE
writeback" path; but a much more reasonable one, based on a page idling
period.
I understand that you want to keep "direct incompressible writeback"
around. ZRAM is especially popular on devices which do suffer from flash
wearout, so I can see "incompressible writeback" path becoming a dead
code, long term.
== &< ==
Below concerns from Minchan:
== &< ==
My concern is if we enable CONFIG_ZRAM_WRITEBACK in this implementation,
both hugepage/idlepage writeck will turn on. However someuser want to
enable only idlepage writeback so we need to introduce turn on/off knob
for hugepage or new CONFIG_ZRAM_IDLEPAGE_WRITEBACK for those usecase. I
don't want to make it complicated *if possible*.
Long term, I imagine we need to make VM aware of new swap hierarchy a
little bit different with as-is. For example, first high priority swap
can return -EIO or -ENOCOMP, swap try to fallback to next lower priority
swap device. With that, hugepage writeback will work tranparently.
So we could regard it as regression because incompressible pages doesn't
go to backing storage automatically. Instead, user should do it via "echo
huge" > /sys/block/zram/writeback" manually.
== &< ==
Link: http://lkml.kernel.org/r/20181127055429.251614-6-minchan@kernel.org
Signed-off-by: Minchan Kim <minchan@kernel.org>
Reviewed-by: Joey Pabalinas <joeypabalinas@gmail.com>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
To support idle page writeback with upcoming patches, this patch
introduces a new ZRAM_IDLE flag.
Userspace can mark zram slots as "idle" via
"echo all > /sys/block/zramX/idle"
which marks every allocated zram slot as ZRAM_IDLE.
User could see it by /sys/kernel/debug/zram/zram0/block_state.
300 75.033841 ...i
301 63.806904 s..i
302 63.806919 ..hi
Once there is IO for the slot, the mark will be disappeared.
300 75.033841 ...
301 63.806904 s..i
302 63.806919 ..hi
Therefore, 300th block is idle zpage. With this feature,
user can how many zram has idle pages which are waste of memory.
Link: http://lkml.kernel.org/r/20181127055429.251614-5-minchan@kernel.org
Signed-off-by: Minchan Kim <minchan@kernel.org>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Reviewed-by: Joey Pabalinas <joeypabalinas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
An external fragmentation event was previously described as
When the page allocator fragments memory, it records the event using
the mm_page_alloc_extfrag event. If the fallback_order is smaller
than a pageblock order (order-9 on 64-bit x86) then it's considered
an event that will cause external fragmentation issues in the future.
The kernel reduces the probability of such events by increasing the
watermark sizes by calling set_recommended_min_free_kbytes early in the
lifetime of the system. This works reasonably well in general but if
there are enough sparsely populated pageblocks then the problem can still
occur as enough memory is free overall and kswapd stays asleep.
This patch introduces a watermark_boost_factor sysctl that allows a zone
watermark to be temporarily boosted when an external fragmentation causing
events occurs. The boosting will stall allocations that would decrease
free memory below the boosted low watermark and kswapd is woken if the
calling context allows to reclaim an amount of memory relative to the size
of the high watermark and the watermark_boost_factor until the boost is
cleared. When kswapd finishes, it wakes kcompactd at the pageblock order
to clean some of the pageblocks that may have been affected by the
fragmentation event. kswapd avoids any writeback, slab shrinkage and swap
from reclaim context during this operation to avoid excessive system
disruption in the name of fragmentation avoidance. Care is taken so that
kswapd will do normal reclaim work if the system is really low on memory.
This was evaluated using the same workloads as "mm, page_alloc: Spread
allocations across zones before introducing fragmentation".
1-socket Skylake machine
config-global-dhp__workload_thpfioscale XFS (no special madvise)
4 fio threads, 1 THP allocating thread
--------------------------------------
4.20-rc3 extfrag events < order 9: 804694
4.20-rc3+patch: 408912 (49% reduction)
4.20-rc3+patch1-4: 18421 (98% reduction)
4.20.0-rc3 4.20.0-rc3
lowzone-v5r8 boost-v5r8
Amean fault-base-1 653.58 ( 0.00%) 652.71 ( 0.13%)
Amean fault-huge-1 0.00 ( 0.00%) 178.93 * -99.00%*
4.20.0-rc3 4.20.0-rc3
lowzone-v5r8 boost-v5r8
Percentage huge-1 0.00 ( 0.00%) 5.12 ( 100.00%)
Note that external fragmentation causing events are massively reduced by
this path whether in comparison to the previous kernel or the vanilla
kernel. The fault latency for huge pages appears to be increased but that
is only because THP allocations were successful with the patch applied.
1-socket Skylake machine
global-dhp__workload_thpfioscale-madvhugepage-xfs (MADV_HUGEPAGE)
-----------------------------------------------------------------
4.20-rc3 extfrag events < order 9: 291392
4.20-rc3+patch: 191187 (34% reduction)
4.20-rc3+patch1-4: 13464 (95% reduction)
thpfioscale Fault Latencies
4.20.0-rc3 4.20.0-rc3
lowzone-v5r8 boost-v5r8
Min fault-base-1 912.00 ( 0.00%) 905.00 ( 0.77%)
Min fault-huge-1 127.00 ( 0.00%) 135.00 ( -6.30%)
Amean fault-base-1 1467.55 ( 0.00%) 1481.67 ( -0.96%)
Amean fault-huge-1 1127.11 ( 0.00%) 1063.88 * 5.61%*
4.20.0-rc3 4.20.0-rc3
lowzone-v5r8 boost-v5r8
Percentage huge-1 77.64 ( 0.00%) 83.46 ( 7.49%)
As before, massive reduction in external fragmentation events, some jitter
on latencies and an increase in THP allocation success rates.
2-socket Haswell machine
config-global-dhp__workload_thpfioscale XFS (no special madvise)
4 fio threads, 5 THP allocating threads
----------------------------------------------------------------
4.20-rc3 extfrag events < order 9: 215698
4.20-rc3+patch: 200210 (7% reduction)
4.20-rc3+patch1-4: 14263 (93% reduction)
4.20.0-rc3 4.20.0-rc3
lowzone-v5r8 boost-v5r8
Amean fault-base-5 1346.45 ( 0.00%) 1306.87 ( 2.94%)
Amean fault-huge-5 3418.60 ( 0.00%) 1348.94 ( 60.54%)
4.20.0-rc3 4.20.0-rc3
lowzone-v5r8 boost-v5r8
Percentage huge-5 0.78 ( 0.00%) 7.91 ( 910.64%)
There is a 93% reduction in fragmentation causing events, there is a big
reduction in the huge page fault latency and allocation success rate is
higher.
2-socket Haswell machine
global-dhp__workload_thpfioscale-madvhugepage-xfs (MADV_HUGEPAGE)
-----------------------------------------------------------------
4.20-rc3 extfrag events < order 9: 166352
4.20-rc3+patch: 147463 (11% reduction)
4.20-rc3+patch1-4: 11095 (93% reduction)
thpfioscale Fault Latencies
4.20.0-rc3 4.20.0-rc3
lowzone-v5r8 boost-v5r8
Amean fault-base-5 6217.43 ( 0.00%) 7419.67 * -19.34%*
Amean fault-huge-5 3163.33 ( 0.00%) 3263.80 ( -3.18%)
4.20.0-rc3 4.20.0-rc3
lowzone-v5r8 boost-v5r8
Percentage huge-5 95.14 ( 0.00%) 87.98 ( -7.53%)
There is a large reduction in fragmentation events with some jitter around
the latencies and success rates. As before, the high THP allocation
success rate does mean the system is under a lot of pressure. However, as
the fragmentation events are reduced, it would be expected that the
long-term allocation success rate would be higher.
Link: http://lkml.kernel.org/r/20181123114528.28802-5-mgorman@techsingularity.net
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Zi Yan <zi.yan@cs.rutgers.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch updates KASAN documentation to reflect the addition of the new
tag-based mode.
Link: http://lkml.kernel.org/r/aabef9de317c54b8a3919a4946ce534c6576726a.1544099024.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
It can be useful to inhibit all cgroup1 hierarchies especially during
transition and for debugging. cgroup_no_v1 can block hierarchies with
controllers which leaves out the named hierarchies. Expand it to
cover the named hierarchies so that "cgroup_no_v1=all,named" disables
all cgroup1 hierarchies.
Signed-off-by: Tejun Heo <tj@kernel.org>
Suggested-by: Marcin Pawlowski <mpawlowski@fb.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
* Use common helpers, bitmap_zalloc() and kstrndup(), to replace open
coded versions.
* Clarify the comments around hotplug vs initial init case for the nfit
driver.
* Cleanup the libnvdimm init path.
Pull crypto updates from Herbert Xu:
"API:
- Add 1472-byte test to tcrypt for IPsec
- Reintroduced crypto stats interface with numerous changes
- Support incremental algorithm dumps
Algorithms:
- Add xchacha12/20
- Add nhpoly1305
- Add adiantum
- Add streebog hash
- Mark cts(cbc(aes)) as FIPS allowed
Drivers:
- Improve performance of arm64/chacha20
- Improve performance of x86/chacha20
- Add NEON-accelerated nhpoly1305
- Add SSE2 accelerated nhpoly1305
- Add AVX2 accelerated nhpoly1305
- Add support for 192/256-bit keys in gcmaes AVX
- Add SG support in gcmaes AVX
- ESN for inline IPsec tx in chcr
- Add support for CryptoCell 703 in ccree
- Add support for CryptoCell 713 in ccree
- Add SM4 support in ccree
- Add SM3 support in ccree
- Add support for chacha20 in caam/qi2
- Add support for chacha20 + poly1305 in caam/jr
- Add support for chacha20 + poly1305 in caam/qi2
- Add AEAD cipher support in cavium/nitrox"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (130 commits)
crypto: skcipher - remove remnants of internal IV generators
crypto: cavium/nitrox - Fix build with !CONFIG_DEBUG_FS
crypto: salsa20-generic - don't unnecessarily use atomic walk
crypto: skcipher - add might_sleep() to skcipher_walk_virt()
crypto: x86/chacha - avoid sleeping under kernel_fpu_begin()
crypto: cavium/nitrox - Added AEAD cipher support
crypto: mxc-scc - fix build warnings on ARM64
crypto: api - document missing stats member
crypto: user - remove unused dump functions
crypto: chelsio - Fix wrong error counter increments
crypto: chelsio - Reset counters on cxgb4 Detach
crypto: chelsio - Handle PCI shutdown event
crypto: chelsio - cleanup:send addr as value in function argument
crypto: chelsio - Use same value for both channel in single WR
crypto: chelsio - Swap location of AAD and IV sent in WR
crypto: chelsio - remove set but not used variable 'kctx_len'
crypto: ux500 - Use proper enum in hash_set_dma_transfer
crypto: ux500 - Use proper enum in cryp_set_dma_transfer
crypto: aesni - Add scatter/gather avx stubs, and use them in C
crypto: aesni - Introduce partial block macro
..
Pull networking updates from David Miller:
1) New ipset extensions for matching on destination MAC addresses, from
Stefano Brivio.
2) Add ipv4 ttl and tos, plus ipv6 flow label and hop limit offloads to
nfp driver. From Stefano Brivio.
3) Implement GRO for plain UDP sockets, from Paolo Abeni.
4) Lots of work from Michał Mirosław to eliminate the VLAN_TAG_PRESENT
bit so that we could support the entire vlan_tci value.
5) Rework the IPSEC policy lookups to better optimize more usecases,
from Florian Westphal.
6) Infrastructure changes eliminating direct manipulation of SKB lists
wherever possible, and to always use the appropriate SKB list
helpers. This work is still ongoing...
7) Lots of PHY driver and state machine improvements and
simplifications, from Heiner Kallweit.
8) Various TSO deferral refinements, from Eric Dumazet.
9) Add ntuple filter support to aquantia driver, from Dmitry Bogdanov.
10) Batch dropping of XDP packets in tuntap, from Jason Wang.
11) Lots of cleanups and improvements to the r8169 driver from Heiner
Kallweit, including support for ->xmit_more. This driver has been
getting some much needed love since he started working on it.
12) Lots of new forwarding selftests from Petr Machata.
13) Enable VXLAN learning in mlxsw driver, from Ido Schimmel.
14) Packed ring support for virtio, from Tiwei Bie.
15) Add new Aquantia AQtion USB driver, from Dmitry Bezrukov.
16) Add XDP support to dpaa2-eth driver, from Ioana Ciocoi Radulescu.
17) Implement coalescing on TCP backlog queue, from Eric Dumazet.
18) Implement carrier change in tun driver, from Nicolas Dichtel.
19) Support msg_zerocopy in UDP, from Willem de Bruijn.
20) Significantly improve garbage collection of neighbor objects when
the table has many PERMANENT entries, from David Ahern.
21) Remove egdev usage from nfp and mlx5, and remove the facility
completely from the tree as it no longer has any users. From Oz
Shlomo and others.
22) Add a NETDEV_PRE_CHANGEADDR so that drivers can veto the change and
therefore abort the operation before the commit phase (which is the
NETDEV_CHANGEADDR event). From Petr Machata.
23) Add indirect call wrappers to avoid retpoline overhead, and use them
in the GRO code paths. From Paolo Abeni.
24) Add support for netlink FDB get operations, from Roopa Prabhu.
25) Support bloom filter in mlxsw driver, from Nir Dotan.
26) Add SKB extension infrastructure. This consolidates the handling of
the auxiliary SKB data used by IPSEC and bridge netfilter, and is
designed to support the needs to MPTCP which could be integrated in
the future.
27) Lots of XDP TX optimizations in mlx5 from Tariq Toukan.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1845 commits)
net: dccp: fix kernel crash on module load
drivers/net: appletalk/cops: remove redundant if statement and mask
bnx2x: Fix NULL pointer dereference in bnx2x_del_all_vlans() on some hw
net/net_namespace: Check the return value of register_pernet_subsys()
net/netlink_compat: Fix a missing check of nla_parse_nested
ieee802154: lowpan_header_create check must check daddr
net/mlx4_core: drop useless LIST_HEAD
mlxsw: spectrum: drop useless LIST_HEAD
net/mlx5e: drop useless LIST_HEAD
iptunnel: Set tun_flags in the iptunnel_metadata_reply from src
net/mlx5e: fix semicolon.cocci warnings
staging: octeon: fix build failure with XFRM enabled
net: Revert recent Spectre-v1 patches.
can: af_can: Fix Spectre v1 vulnerability
packet: validate address length if non-zero
nfc: af_nfc: Fix Spectre v1 vulnerability
phonet: af_phonet: Fix Spectre v1 vulnerability
net: core: Fix Spectre v1 vulnerability
net: minor cleanup in skb_ext_add()
net: drop the unused helper skb_ext_get()
...
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Merge tag 'selinux-pr-20181224' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull selinux patches from Paul Moore:
"I already used my best holiday pull request lines in the audit pull
request, so this one is going to be a bit more boring, sorry about
that. To make up for this, we do have a birthday of sorts to
celebrate: SELinux turns 18 years old this December. Perhaps not the
most exciting thing in the world for most people, but I think it's
safe to say that anyone reading this email doesn't exactly fall into
the "most people" category.
Back to business and the pull request itself:
Ondrej has five patches in this pull request and I lump them into
three categories: one patch to always allow submounts (using similar
logic to elsewhere in the kernel), one to fix some issues with the
SELinux policydb, and the others to cleanup and improve the SELinux
sidtab.
The other patches from Alexey and Petr and trivial fixes that are
adequately described in their respective subject lines.
With this last pull request of the year, I want to thank everyone who
has contributed patches, testing, and reviews to the SELinux project
this year, and the past 18 years. Like any good open source effort,
SELinux is only as good as the community which supports it, and I'm
very happy that we have the community we do - thank you all!"
* tag 'selinux-pr-20181224' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
selinux: overhaul sidtab to fix bug and improve performance
selinux: use separate table for initial SID lookup
selinux: make "selinux_policycap_names[]" const char *
selinux: always allow mounting submounts
selinux: refactor sidtab conversion
Documentation: Update SELinux reference policy URL
selinux: policydb - fix byte order and alignment issues
Notable changes:
- Mitigations for Spectre v2 on some Freescale (NXP) CPUs.
- A large series adding support for pass-through of Nvidia V100 GPUs to guests
on Power9.
- Another large series to enable hardware assistance for TLB table walk on
MPC8xx CPUs.
- Some preparatory changes to our DMA code, to make way for further cleanups
from Christoph.
- Several fixes for our Transactional Memory handling discovered by fuzzing the
signal return path.
- Support for generating our system call table(s) from a text file like other
architectures.
- A fix to our page fault handler so that instead of generating a WARN_ON_ONCE,
user accesses of kernel addresses instead print a ratelimited and
appropriately scary warning.
- A cosmetic change to make our unhandled page fault messages more similar to
other arches and also more compact and informative.
- Freescale updates from Scott:
"Highlights include elimination of legacy clock bindings use from dts
files, an 83xx watchdog handler, fixes to old dts interrupt errors, and
some minor cleanup."
And many clean-ups, reworks and minor fixes etc.
Thanks to:
Alexandre Belloni, Alexey Kardashevskiy, Andrew Donnellan, Aneesh Kumar K.V,
Arnd Bergmann, Benjamin Herrenschmidt, Breno Leitao, Christian Lamparter,
Christophe Leroy, Christoph Hellwig, Daniel Axtens, Darren Stevens, David
Gibson, Diana Craciun, Dmitry V. Levin, Firoz Khan, Geert Uytterhoeven, Greg
Kurz, Gustavo Romero, Hari Bathini, Joel Stanley, Kees Cook, Madhavan
Srinivasan, Mahesh Salgaonkar, Markus Elfring, Mathieu Malaterre, Michal
Suchánek, Naveen N. Rao, Nick Desaulniers, Oliver O'Halloran, Paul Mackerras,
Ram Pai, Ravi Bangoria, Rob Herring, Russell Currey, Sabyasachi Gupta, Sam
Bobroff, Satheesh Rajendran, Scott Wood, Segher Boessenkool, Stephen Rothwell,
Tang Yuantian, Thiago Jung Bauermann, Yangtao Li, Yuantian Tang, Yue Haibing.
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Merge tag 'powerpc-4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
"Notable changes:
- Mitigations for Spectre v2 on some Freescale (NXP) CPUs.
- A large series adding support for pass-through of Nvidia V100 GPUs
to guests on Power9.
- Another large series to enable hardware assistance for TLB table
walk on MPC8xx CPUs.
- Some preparatory changes to our DMA code, to make way for further
cleanups from Christoph.
- Several fixes for our Transactional Memory handling discovered by
fuzzing the signal return path.
- Support for generating our system call table(s) from a text file
like other architectures.
- A fix to our page fault handler so that instead of generating a
WARN_ON_ONCE, user accesses of kernel addresses instead print a
ratelimited and appropriately scary warning.
- A cosmetic change to make our unhandled page fault messages more
similar to other arches and also more compact and informative.
- Freescale updates from Scott:
"Highlights include elimination of legacy clock bindings use from
dts files, an 83xx watchdog handler, fixes to old dts interrupt
errors, and some minor cleanup."
And many clean-ups, reworks and minor fixes etc.
Thanks to: Alexandre Belloni, Alexey Kardashevskiy, Andrew Donnellan,
Aneesh Kumar K.V, Arnd Bergmann, Benjamin Herrenschmidt, Breno Leitao,
Christian Lamparter, Christophe Leroy, Christoph Hellwig, Daniel
Axtens, Darren Stevens, David Gibson, Diana Craciun, Dmitry V. Levin,
Firoz Khan, Geert Uytterhoeven, Greg Kurz, Gustavo Romero, Hari
Bathini, Joel Stanley, Kees Cook, Madhavan Srinivasan, Mahesh
Salgaonkar, Markus Elfring, Mathieu Malaterre, Michal Suchánek, Naveen
N. Rao, Nick Desaulniers, Oliver O'Halloran, Paul Mackerras, Ram Pai,
Ravi Bangoria, Rob Herring, Russell Currey, Sabyasachi Gupta, Sam
Bobroff, Satheesh Rajendran, Scott Wood, Segher Boessenkool, Stephen
Rothwell, Tang Yuantian, Thiago Jung Bauermann, Yangtao Li, Yuantian
Tang, Yue Haibing"
* tag 'powerpc-4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (201 commits)
Revert "powerpc/fsl_pci: simplify fsl_pci_dma_set_mask"
powerpc/zImage: Also check for stdout-path
powerpc: Fix HMIs on big-endian with CONFIG_RELOCATABLE=y
macintosh: Use of_node_name_{eq, prefix} for node name comparisons
ide: Use of_node_name_eq for node name comparisons
powerpc: Use of_node_name_eq for node name comparisons
powerpc/pseries/pmem: Convert to %pOFn instead of device_node.name
powerpc/mm: Remove very old comment in hash-4k.h
powerpc/pseries: Fix node leak in update_lmb_associativity_index()
powerpc/configs/85xx: Enable CONFIG_DEBUG_KERNEL
powerpc/dts/fsl: Fix dtc-flagged interrupt errors
clk: qoriq: add more compatibles strings
powerpc/fsl: Use new clockgen binding
powerpc/83xx: handle machine check caused by watchdog timer
powerpc/fsl-rio: fix spelling mistake "reserverd" -> "reserved"
powerpc/fsl_pci: simplify fsl_pci_dma_set_mask
arch/powerpc/fsl_rmu: Use dma_zalloc_coherent
vfio_pci: Add NVIDIA GV100GL [Tesla V100 SXM2] subdriver
vfio_pci: Allow regions to add own capabilities
vfio_pci: Allow mapping extra regions
...
Pull RCU updates from Ingo Molnar:
"The biggest RCU changes in this cycle were:
- Convert RCU's BUG_ON() and similar calls to WARN_ON() and similar.
- Replace calls of RCU-bh and RCU-sched update-side functions to
their vanilla RCU counterparts. This series is a step towards
complete removal of the RCU-bh and RCU-sched update-side functions.
( Note that some of these conversions are going upstream via their
respective maintainers. )
- Documentation updates, including a number of flavor-consolidation
updates from Joel Fernandes.
- Miscellaneous fixes.
- Automate generation of the initrd filesystem used for rcutorture
testing.
- Convert spin_is_locked() assertions to instead use lockdep.
( Note that some of these conversions are going upstream via their
respective maintainers. )
- SRCU updates, especially including a fix from Dennis Krein for a
bag-on-head-class bug.
- RCU torture-test updates"
* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (112 commits)
rcutorture: Don't do busted forward-progress testing
rcutorture: Use 100ms buckets for forward-progress callback histograms
rcutorture: Recover from OOM during forward-progress tests
rcutorture: Print forward-progress test age upon failure
rcutorture: Print time since GP end upon forward-progress failure
rcutorture: Print histogram of CB invocation at OOM time
rcutorture: Print GP age upon forward-progress failure
rcu: Print per-CPU callback counts for forward-progress failures
rcu: Account for nocb-CPU callback counts in RCU CPU stall warnings
rcutorture: Dump grace-period diagnostics upon forward-progress OOM
rcutorture: Prepare for asynchronous access to rcu_fwd_startat
torture: Remove unnecessary "ret" variables
rcutorture: Affinity forward-progress test to avoid housekeeping CPUs
rcutorture: Break up too-long rcu_torture_fwd_prog() function
rcutorture: Remove cbflood facility
torture: Bring any extra CPUs online during kernel startup
rcutorture: Add call_rcu() flooding forward-progress tests
rcutorture/formal: Replace synchronize_sched() with synchronize_rcu()
tools/kernel.h: Replace synchronize_sched() with synchronize_rcu()
net/decnet: Replace rcu_barrier_bh() with rcu_barrier()
...
Pull x86 cache control updates from Borislav Petkov:
- The generalization of the RDT code to accommodate the addition of
AMD's very similar implementation of the cache monitoring feature.
This entails a subsystem move into a separate and generic
arch/x86/kernel/cpu/resctrl/ directory along with adding
vendor-specific initialization and feature detection helpers.
Ontop of that is the unification of user-visible strings, both in the
resctrl filesystem error handling and Kconfig.
Provided by Babu Moger and Sherry Hurwitz.
- Code simplifications and error handling improvements by Reinette
Chatre.
* 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/resctrl: Fix rdt_find_domain() return value and checks
x86/resctrl: Remove unnecessary check for cbm_validate()
x86/resctrl: Use rdt_last_cmd_puts() where possible
MAINTAINERS: Update resctrl filename patterns
Documentation: Rename and update intel_rdt_ui.txt to resctrl_ui.txt
x86/resctrl: Introduce AMD QOS feature
x86/resctrl: Fixup the user-visible strings
x86/resctrl: Add AMD's X86_FEATURE_MBA to the scattered CPUID features
x86/resctrl: Rename the config option INTEL_RDT to RESCTRL
x86/resctrl: Add vendor check for the MBA software controller
x86/resctrl: Bring cbm_validate() into the resource structure
x86/resctrl: Initialize the vendor-specific resource functions
x86/resctrl: Move all the macros to resctrl/internal.h
x86/resctrl: Re-arrange the RDT init code
x86/resctrl: Rename the RDT functions and definitions
x86/resctrl: Rename and move rdt files to a separate directory
single-stepping fixes, improved tracing, various timer and vGIC
fixes
* x86: Processor Tracing virtualization, STIBP support, some correctness fixes,
refactorings and splitting of vmx.c, use the Hyper-V range TLB flush hypercall,
reduce order of vcpu struct, WBNOINVD support, do not use -ftrace for __noclone
functions, nested guest support for PAUSE filtering on AMD, more Hyper-V
enlightenments (direct mode for synthetic timers)
* PPC: nested VFIO
* s390: bugfixes only this time
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM updates from Paolo Bonzini:
"ARM:
- selftests improvements
- large PUD support for HugeTLB
- single-stepping fixes
- improved tracing
- various timer and vGIC fixes
x86:
- Processor Tracing virtualization
- STIBP support
- some correctness fixes
- refactorings and splitting of vmx.c
- use the Hyper-V range TLB flush hypercall
- reduce order of vcpu struct
- WBNOINVD support
- do not use -ftrace for __noclone functions
- nested guest support for PAUSE filtering on AMD
- more Hyper-V enlightenments (direct mode for synthetic timers)
PPC:
- nested VFIO
s390:
- bugfixes only this time"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (171 commits)
KVM: x86: Add CPUID support for new instruction WBNOINVD
kvm: selftests: ucall: fix exit mmio address guessing
Revert "compiler-gcc: disable -ftracer for __noclone functions"
KVM: VMX: Move VM-Enter + VM-Exit handling to non-inline sub-routines
KVM: VMX: Explicitly reference RCX as the vmx_vcpu pointer in asm blobs
KVM: x86: Use jmp to invoke kvm_spurious_fault() from .fixup
MAINTAINERS: Add arch/x86/kvm sub-directories to existing KVM/x86 entry
KVM/x86: Use SVM assembly instruction mnemonics instead of .byte streams
KVM/MMU: Flush tlb directly in the kvm_zap_gfn_range()
KVM/MMU: Flush tlb directly in kvm_set_pte_rmapp()
KVM/MMU: Move tlb flush in kvm_set_pte_rmapp() to kvm_mmu_notifier_change_pte()
KVM: Make kvm_set_spte_hva() return int
KVM: Replace old tlb flush function with new one to flush a specified range.
KVM/MMU: Add tlb flush with range helper function
KVM/VMX: Add hv tlb range flush support
x86/hyper-v: Add HvFlushGuestAddressList hypercall support
KVM: Add tlb_remote_flush_with_range callback in kvm_x86_ops
KVM: x86: Disable Intel PT when VMXON in L1 guest
KVM: x86: Set intercept for Intel PT MSRs read/write
KVM: x86: Implement Intel PT MSRs read/write emulation
...
include:
- Syscall tables & definitions for unistd.h are now generated by
scripts, providing greater consistency with other architectures &
making it easier to add new syscalls.
- Support for building kernels with no floating point support, upon
which any userland attempting to use floating point instructions will
receive a SIGILL. Mostly useful to shrink the kernel & as preparation
for nanoMIPS support which does not yet include FP.
- MIPS SIMD Architecture (MSA) vector register context is now exposed
by ptrace via a new NT_MIPS_MSA regset.
- ASIDs are now stored as 64b values even for MIPS32 kernels, expanding
the ASID version field sufficiently that we don't need to worry about
overflow & avoiding rare issues with reused ASIDs that have been
observed in the wild.
- The branch delay slot "emulation" page is now mapped without write
permission for the user, preventing its use as a nice location for
attacks to execute malicious code from.
- Support for ioremap_prot(), primarily to allow gdb or other
ptrace users the ability to view their tracee's memory using the same
cache coherency attribute.
- Optimizations to more cpu_has_* macros, allowing more to be
compile-time constant where possible.
- Enable building the whole kernel with UBSAN instrumentation.
- Enable building the kernel with link-time dead code & data
elimination.
Platform specific changes include:
- The Boston board gains a workaround for DMA prefetching issues with
the EG20T Platform Controller Hub that it uses.
- Cleanups to Cavium Octeon code removing about 20k lines of redundant
code, mostly unused or duplicate register definitions in headers.
- defconfig updates for the DECstation machines, including new
defconfigs for r4k & 64b machines.
- Further work on Loongson 3 support.
- DMA fixes for SiByte machines.
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Merge tag 'mips_4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS updates from Paul Burton:
"Here's the main MIPS pull for Linux 4.21. Core architecture changes
include:
- Syscall tables & definitions for unistd.h are now generated by
scripts, providing greater consistency with other architectures &
making it easier to add new syscalls.
- Support for building kernels with no floating point support, upon
which any userland attempting to use floating point instructions
will receive a SIGILL. Mostly useful to shrink the kernel & as
preparation for nanoMIPS support which does not yet include FP.
- MIPS SIMD Architecture (MSA) vector register context is now exposed
by ptrace via a new NT_MIPS_MSA regset.
- ASIDs are now stored as 64b values even for MIPS32 kernels,
expanding the ASID version field sufficiently that we don't need to
worry about overflow & avoiding rare issues with reused ASIDs that
have been observed in the wild.
- The branch delay slot "emulation" page is now mapped without write
permission for the user, preventing its use as a nice location for
attacks to execute malicious code from.
- Support for ioremap_prot(), primarily to allow gdb or other ptrace
users the ability to view their tracee's memory using the same
cache coherency attribute.
- Optimizations to more cpu_has_* macros, allowing more to be
compile-time constant where possible.
- Enable building the whole kernel with UBSAN instrumentation.
- Enable building the kernel with link-time dead code & data
elimination.
Platform specific changes include:
- The Boston board gains a workaround for DMA prefetching issues with
the EG20T Platform Controller Hub that it uses.
- Cleanups to Cavium Octeon code removing about 20k lines of
redundant code, mostly unused or duplicate register definitions in
headers.
- defconfig updates for the DECstation machines, including new
defconfigs for r4k & 64b machines.
- Further work on Loongson 3 support.
- DMA fixes for SiByte machines"
* tag 'mips_4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (95 commits)
MIPS: math-emu: Write-protect delay slot emulation pages
MIPS: Remove struct mm_context_t fp_mode_switching field
mips: generate uapi header and system call table files
mips: add system call table generation support
mips: remove syscall table entries
mips: add +1 to __NR_syscalls in uapi header
mips: rename scall64-64.S to scall64-n64.S
mips: remove unused macros
mips: add __NR_syscalls along with __NR_Linux_syscalls
MIPS: Expand MIPS32 ASIDs to 64 bits
MIPS: OCTEON: delete redundant register definitions
MIPS: OCTEON: cvmx_gmxx_inf_mode: use oldest forward compatible definition
MIPS: OCTEON: cvmx_mio_fus_dat3: use oldest forward compatible definition
MIPS: OCTEON: cvmx_pko_mem_debug8: use oldest forward compatible definition
MIPS: OCTEON: octeon-usb: use common gpio_bit definition
MIPS: OCTEON: enable all OCTEON drivers in defconfig
mips: annotate implicit fall throughs
MIPS: Hardcode cpu_has_mips* where target ISA allows
MIPS: MT: Remove norps command line parameter
MIPS: Only include mmzone.h when CONFIG_NEED_MULTIPLE_NODES=y
...
In the end, we ended up with quite a lot more than I expected:
- Support for ARMv8.3 Pointer Authentication in userspace (CRIU and
kernel-side support to come later)
- Support for per-thread stack canaries, pending an update to GCC that
is currently undergoing review
- Support for kexec_file_load(), which permits secure boot of a kexec
payload but also happens to improve the performance of kexec
dramatically because we can avoid the sucky purgatory code from
userspace. Kdump will come later (requires updates to libfdt).
- Optimisation of our dynamic CPU feature framework, so that all
detected features are enabled via a single stop_machine() invocation
- KPTI whitelisting of Cortex-A CPUs unaffected by Meltdown, so that
they can benefit from global TLB entries when KASLR is not in use
- 52-bit virtual addressing for userspace (kernel remains 48-bit)
- Patch in LSE atomics for per-cpu atomic operations
- Custom preempt.h implementation to avoid unconditional calls to
preempt_schedule() from preempt_enable()
- Support for the new 'SB' Speculation Barrier instruction
- Vectorised implementation of XOR checksumming and CRC32 optimisations
- Workaround for Cortex-A76 erratum #1165522
- Improved compatibility with Clang/LLD
- Support for TX2 system PMUS for profiling the L3 cache and DMC
- Reflect read-only permissions in the linear map by default
- Ensure MMIO reads are ordered with subsequent calls to Xdelay()
- Initial support for memory hotplug
- Tweak the threshold when we invalidate the TLB by-ASID, so that
mremap() performance is improved for ranges spanning multiple PMDs.
- Minor refactoring and cleanups
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 festive updates from Will Deacon:
"In the end, we ended up with quite a lot more than I expected:
- Support for ARMv8.3 Pointer Authentication in userspace (CRIU and
kernel-side support to come later)
- Support for per-thread stack canaries, pending an update to GCC
that is currently undergoing review
- Support for kexec_file_load(), which permits secure boot of a kexec
payload but also happens to improve the performance of kexec
dramatically because we can avoid the sucky purgatory code from
userspace. Kdump will come later (requires updates to libfdt).
- Optimisation of our dynamic CPU feature framework, so that all
detected features are enabled via a single stop_machine()
invocation
- KPTI whitelisting of Cortex-A CPUs unaffected by Meltdown, so that
they can benefit from global TLB entries when KASLR is not in use
- 52-bit virtual addressing for userspace (kernel remains 48-bit)
- Patch in LSE atomics for per-cpu atomic operations
- Custom preempt.h implementation to avoid unconditional calls to
preempt_schedule() from preempt_enable()
- Support for the new 'SB' Speculation Barrier instruction
- Vectorised implementation of XOR checksumming and CRC32
optimisations
- Workaround for Cortex-A76 erratum #1165522
- Improved compatibility with Clang/LLD
- Support for TX2 system PMUS for profiling the L3 cache and DMC
- Reflect read-only permissions in the linear map by default
- Ensure MMIO reads are ordered with subsequent calls to Xdelay()
- Initial support for memory hotplug
- Tweak the threshold when we invalidate the TLB by-ASID, so that
mremap() performance is improved for ranges spanning multiple PMDs.
- Minor refactoring and cleanups"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (125 commits)
arm64: kaslr: print PHYS_OFFSET in dump_kernel_offset()
arm64: sysreg: Use _BITUL() when defining register bits
arm64: cpufeature: Rework ptr auth hwcaps using multi_entry_cap_matches
arm64: cpufeature: Reduce number of pointer auth CPU caps from 6 to 4
arm64: docs: document pointer authentication
arm64: ptr auth: Move per-thread keys from thread_info to thread_struct
arm64: enable pointer authentication
arm64: add prctl control for resetting ptrauth keys
arm64: perf: strip PAC when unwinding userspace
arm64: expose user PAC bit positions via ptrace
arm64: add basic pointer authentication support
arm64/cpufeature: detect pointer authentication
arm64: Don't trap host pointer auth use to EL2
arm64/kvm: hide ptrauth from guests
arm64/kvm: consistently handle host HCR_EL2 flags
arm64: add pointer authentication register bits
arm64: add comments about EC exception levels
arm64: perf: Treat EXCLUDE_EL* bit definitions as unsigned
arm64: kpti: Whitelist Cortex-A CPUs that don't implement the CSV3 field
arm64: enable per-task stack canaries
...
Pull x86 pti updates from Thomas Gleixner:
"No point in speculating what's in this parcel:
- Drop the swap storage limit when L1TF is disabled so the full space
is available
- Add support for the new AMD STIBP always on mitigation mode
- Fix a bunch of STIPB typos"
* 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/speculation: Add support for STIBP always-on preferred mode
x86/speculation/l1tf: Drop the swap storage limit restriction when l1tf=off
x86/speculation: Change misspelled STIPB to STIBP
Pull timer updates from Thomas Gleixner:
"The timer department delivers the following christmas presents:
Core code:
- Use proper seqcount initializer to make lockdep happy
- SPDX annotations and cleanup of license boilerplates
- Use DEFINE_SHOW_ATTRIBUTE() instead of open coding it
- Minor cleanups
Driver code:
- Add the sched_clock for the arc timer (Alexey Brodkin)
- Change the file timer names for riscv, rockchip, tegra20, sun4i and
meson6 (Daniel Lezcano)
- Add the DT bindings for r8a7796, r8a77470 and r8a774a1 (Biju Das)
- Remove the early platform driver registration for timer-ti-dm
(Bartosz Golaszewski)
- Provide the sched_clock for the riscv timer (Anup Patel)
- Add support for ARM64 for the imx-gpt and convert the imx-tpm to
the timer-of API (Anson Huang)
- Remove useless irq protection for the imx-gpt (Clément Péron)
- Remove a duplicate function name for the vt8500 (Dan Carpenter)
- Remove obsolete inclusion of <asm/smp_twd.h> for the tegra20 (Geert
Uytterhoeven)
- Demote the prcmu and the custom sched_clock for the dbx500 and the
ux500 (Linus Walleij)
- Add a new timer clock for the RDA8810PL (Manivannan Sadhasivam)
- Rename the macro to stick to the register name and add the delay
timer (Martin Blumenstingl)
- Switch the bcm2835 to the SPDX identifier (Stefan Wahren)
- Fix the interrupt register access on the fttmr010 (Tao Ren)
- Add missing of_node_put in the initialization path on the
integrator-ap (Yangtao Li)"
* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (39 commits)
dt-bindings: timer: Document RDA8810PL SoC timer
clocksource/drivers/rda: Add clock driver for RDA8810PL SoC
clocksource/drivers/meson6: Change name meson6_timer timer-meson6
clocksource/drivers/sun4i: Change name sun4i_timer to timer-sun4i
clocksource/drivers/tegra20: Change name tegra20_timer to timer-tegra20
clocksource/drivers/rockchip: Change name rockchip_timer to timer-rockchip
clocksource/drivers/riscv: Change name riscv_timer to timer-riscv
clocksource/drivers/riscv_timer: Provide the sched_clock
clocksource/drivers/timer-imx-tpm: Specify clock name for timer-of
clocksource/drivers/fttmr010: Fix invalid interrupt register access
clocksource/drivers/integrator-ap: Add missing of_node_put()
clocksource/drivers/bcm2835: Switch to SPDX identifier
dt-bindings: timer: renesas, cmt: Document r8a774a1 CMT support
clocksource/drivers/timer-imx-tpm: Convert the driver to timer-of
clocksource/drivers/arc_timer: Utilize generic sched_clock
dt-bindings: timer: renesas, cmt: Document r8a77470 CMT support
dt-bindings: timer: renesas, cmt: Document r8a7796 CMT support
clocksource/drivers/imx-gpt: Remove unnecessary irq protection
clocksource/drivers/imx-gpt: Add support for ARM64
clocksource/drivers/meson6_timer: Implement the ARM delay timer
...
Pull irq updates from Thomas Gleixner:
"The interrupt department provides:
Core updates:
- Better spreading to NUMA nodes in the affinity management
- Support for more than one set of interrupts to spread out to allow
separate queues for separate functionality of a single device.
- Decouple the non queue interrupts from being managed. Those are
usually general interrupts for error handling etc. and those should
never be shut down. This also a preparation to utilize the
spreading mechanism for initial spreading of non-managed interrupts
later.
- Make the single CPU target selection in the matrix allocator more
balanced so interrupts won't accumulate on single CPUs in certain
situations.
- A large spell checking patch so we don't end up fixing single typos
over and over.
Driver updates:
- A bunch of new irqchip drivers (RDA8810PL, Madera, imx-irqsteer)
- Updates for the 8MQ, F1C100s platform drivers
- A number of SPDX cleanups
- A workaround for a very broken GICv3 implementation on msm8996
which sports a botched register set.
- A platform-msi fix to prevent memory leakage
- Various cleanups"
* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (37 commits)
genirq/affinity: Add is_managed to struct irq_affinity_desc
genirq/core: Introduce struct irq_affinity_desc
genirq/affinity: Remove excess indentation
irqchip/stm32: protect configuration registers with hwspinlock
dt-bindings: interrupt-controller: stm32: Document hwlock properties
irqchip: Add driver for imx-irqsteer controller
dt-bindings/irq: Add binding for Freescale IRQSTEER multiplexer
irqchip: Add driver for Cirrus Logic Madera codecs
genirq: Fix various typos in comments
irqchip/irq-imx-gpcv2: Add IRQCHIP_DECLARE for i.MX8MQ compatible
irqchip/irq-rda-intc: Fix return value check in rda8810_intc_init()
irqchip/irq-imx-gpcv2: Silence "fall through" warning
irqchip/gic-v3: Add quirk for msm8996 broken registers
irqchip/gic: Add support to device tree based quirks
dt-bindings/gic-v3: Add msm8996 compatible string
irqchip/sun4i: Add support for Allwinner ARMv5 F1C100s
irqchip/sun4i: Move IC specific register offsets to struct
irqchip/sun4i: Add a struct to hold global variables
dt-bindings: interrupt-controller: Add suniv interrupt-controller
irqchip: Add RDA8810PL interrupt driver
...
- Introduce "software nodes", analogous to the DT and ACPI firmware
nodes except that they can be created by kernel code, in order to
complement fwnodes representing real firmware nodes when they are
incomplete (for example missing device properties) and to supply
the primary fwnode when the firmware lacks hardware description
for a device completely, and replace the "property_set" struct
fwnode_handle type with software nodes (Heikki Krogerus).
- Clean up the just introduced software nodes support and fix a commet
in the graph-handling code (Colin Ian King, Marco Felsch).
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Merge tag 'devprop-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull device properties framework updates from Rafael Wysocki:
"This introduces 'software nodes' that are analogous to the DT and ACPI
firmware nodes except that they can be created by drivers themselves
and do a couple of assorted cleanups.
Specifics:
- Introduce "software nodes", analogous to the DT and ACPI firmware
nodes except that they can be created by kernel code, in order to
complement fwnodes representing real firmware nodes when they are
incomplete (for example missing device properties) and to supply
the primary fwnode when the firmware lacks hardware description for
a device completely, and replace the "property_set" struct
fwnode_handle type with software nodes (Heikki Krogerus).
- Clean up the just introduced software nodes support and fix a
commet in the graph-handling code (Colin Ian King, Marco Felsch)"
* tag 'devprop-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
device property: fix fwnode_graph_get_next_endpoint() documentation
drivers: base: swnode: remove need for a temporary string for the node name
device property: Remove struct property_set
device property: Move device_add_properties() to swnode.c
drivers: base: Introducing software nodes to the firmware node framework
ACPI / glue: Add acpi_platform_notify() function
drivers core: Prepare support for multiple platform notifications
driver core: platform: Remove duplicated device_remove_properties() call
three i.MX SoCs in here and that mostly means a lot of driver code and data.
Beyond that platform, there are some new Mediatek, Amlogic, and Qualcomm clk
drivers added in here, and then we get to the long tail of driver updates and
non-critical fixes all around, including code for vendors such as Renesas,
Rockchip, Nvidia, and Allwinner. Overall, the driver updates look normal.
Beyond the usual driver updates we have an update to make registering OF based
clk providers a little simpler when they're devices created as a child of a
device backed by a node in DT. Drivers don't have to jump through hoops to
unregister the provider upon driver removal anymore because the API does the
right thing and uses the parent device DT node.
Core:
- Make devm_of_clk_add_hw_provider() use parent dt node if necessary
- Various SPDX taggings
- Mark clk_ops const when possible
New Drivers:
- NXP i.MX7ULP SoC clock support
- NXP i.MX8QXP SoC clock support
- NXP i.MX8MQ SoC clock support
- NXP QorIQ T1023 SoC support
- Qualcomm SDM845 audio subsystem clks
- Qualcomm SDM845 GPU clck controllers
- Qualcomm QCS404 RPM clk support
- Mediatek MT7629 SoC clk controllers
- Allwinner F1c100s SoC clocks
- Allwinner H6 display engine clocks
- Amlogic GX video clocks
- Support for Amlogic meson8b CPU frequency scaling
- Amlogic Meson8b CPU post-divider clocks
Updates:
- Proper suspend/resume on VersaClock5
- Shrink code some with DEFINE_SHOW_ATTRIBUTE()
- Register fixes for Rockchip rk3188 and rk3328
- One new critical clock for Rockchip rk3188 and a fixed clock id (double used number)
- New clock id for Rockchip rk3328
- Amlogic Meson8/Meson8b video clock support
- Amlogic got a clk-input helper and used it for the axg-audio clock driver
- Sigma Delta modulation for the Allwinner A33 audio clocks
- Support for CPEX (timer) clocks on various Renesas R-Car Gen3 and RZ/G2 SoCs
- Support for SDHI HS400 clocks on early revisions of Renesas R-Car H3 and M3-W
- Support for SDHI and USB clocks on Renesas RZ/A2
- Support for RPC (SPI Multi I/O Bus Controller) clocks on Renesas R-Car V3M
- Qualcomm MSM8998 GCC driver improvements (resets, drop unused clks, etc.)
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"This round is dominated by NXP's i.MX clk drivers. We gained support
for two or three i.MX SoCs in here and that mostly means a lot of
driver code and data.
Beyond that platform, there are some new Mediatek, Amlogic, and
Qualcomm clk drivers added in here, and then we get to the long tail
of driver updates and non-critical fixes all around, including code
for vendors such as Renesas, Rockchip, Nvidia, and Allwinner. Overall,
the driver updates look normal.
Apart from the usual driver updates we have an update to make
registering OF based clk providers a little simpler when they're
devices created as a child of a device backed by a node in DT. Drivers
don't have to jump through hoops to unregister the provider upon
driver removal anymore because the API does the right thing and uses
the parent device DT node.
Summary:
Core:
- Make devm_of_clk_add_hw_provider() use parent dt node if necessary
- Various SPDX taggings
- Mark clk_ops const when possible
New Drivers:
- NXP i.MX7ULP SoC clock support
- NXP i.MX8QXP SoC clock support
- NXP i.MX8MQ SoC clock support
- NXP QorIQ T1023 SoC support
- Qualcomm SDM845 audio subsystem clks
- Qualcomm SDM845 GPU clck controllers
- Qualcomm QCS404 RPM clk support
- Mediatek MT7629 SoC clk controllers
- Allwinner F1c100s SoC clocks
- Allwinner H6 display engine clocks
- Amlogic GX video clocks
- Support for Amlogic meson8b CPU frequency scaling
- Amlogic Meson8b CPU post-divider clocks
Updates:
- Proper suspend/resume on VersaClock5
- Shrink code some with DEFINE_SHOW_ATTRIBUTE()
- Register fixes for Rockchip rk3188 and rk3328
- One new critical clock for Rockchip rk3188 and a fixed clock id
(double used number)
- New clock id for Rockchip rk3328
- Amlogic Meson8/Meson8b video clock support
- Amlogic got a clk-input helper and used it for the axg-audio clock
driver
- Sigma Delta modulation for the Allwinner A33 audio clocks
- Support for CPEX (timer) clocks on various Renesas R-Car Gen3 and
RZ/G2 SoCs
- Support for SDHI HS400 clocks on early revisions of Renesas R-Car
H3 and M3-W
- Support for SDHI and USB clocks on Renesas RZ/A2
- Support for RPC (SPI Multi I/O Bus Controller) clocks on Renesas
R-Car V3M
- Qualcomm MSM8998 GCC driver improvements (resets, drop unused clks,
etc)"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (172 commits)
clk: imx: imx7ulp: add arm hsrun mode clocks support
dt-bindings: clock: imx7ulp: add HSRUN mode related clocks
clk: Use of_node_name_eq for node name comparisons
clk: vc5: Add suspend/resume support
clk: qcom: Drop unused 8998 clock
clk: qcom: Leave mmss noc on for 8998
clk: tegra: Return the exact clock rate from clk_round_rate
clk: tegra30: Use Tegra CPU powergate helper function
soc/tegra: pmc: Drop SMP dependency from CPU APIs
clk: tegra: Fix maximum audio sync clock for Tegra124/210
clk: tegra: get rid of duplicate defines
clk: imx: add imx8qxp lpcg driver
clk: imx: add lpcg clock support
clk: imx: add imx8qxp clk driver
clk: imx: Make the i.MX8MQ CCM clock driver CLK_IMX8MQ dependant
clk: imx: add scu clock common part
clk: imx: add configuration option for mmio clks
dt-bindings: clock: add imx8qxp lpcg clock binding
dt-bindings: clock: imx8qxp: add SCU clock IDs
clk: qcom: Add missing msm8998 resets
...
The main thing this release has been a lot of work on the integration
with SPI NOR flashes, there's been some specific support for a while for
controller features designed to make them perform better but it's not
worked out as well as hoped so the interface has been redesigned in a
way that will hopefully do better - it's already been adopted by a
number of additional controllers so things are looking good. Otherwise
most of the work has been driver specific:
- Support for better integration with NOR flashes from Boris Brezillon
and Yogesh Narayan Gaur plus usage of it in several drivers.
- A big cleanup of the Rockchip driver from Emil Renner Berthing.
- Lots of performance improvements for bcm2835 from Lukas Wunner.
- Slave mode support for pxa2xx from Lubomir Rintel.
- Support for Macronix MXIC, Mediatek MT7629 and MT8183, NPCM PSPI,
and Renesas r8a77470.
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Merge tag 'spi-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"The main thing this release has been a lot of work on the integration
with SPI NOR flashes, there's been some specific support for a while
for controller features designed to make them perform better but it's
not worked out as well as hoped so the interface has been redesigned
in a way that will hopefully do better - it's already been adopted by
a number of additional controllers so things are looking good.
Otherwise most of the work has been driver specific:
- Support for better integration with NOR flashes from Boris
Brezillon and Yogesh Narayan Gaur plus usage of it in several
drivers.
- A big cleanup of the Rockchip driver from Emil Renner Berthing.
- Lots of performance improvements for bcm2835 from Lukas Wunner.
- Slave mode support for pxa2xx from Lubomir Rintel.
- Support for Macronix MXIC, Mediatek MT7629 and MT8183, NPCM PSPI,
and Renesas r8a77470"
* tag 'spi-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (90 commits)
spi: sh-msiof: Reduce the number of times write to and perform the transmission from FIFO
spi: sh-msiof: Add r8a774c0 support
doc: lpspi: Document DT bindings for LPSPI slave mode
spi: lpspi: Let watermark change with send data length
spi: lpspi: Add slave mode support
spi: lpspi: Replace all "master" with "controller"
spi: imx: drop useless member speed_hz from driver data struct
spi: imx: rename config callback and add useful parameters
spi: imx: style fixes
spi: imx: mx51-ecspi: Move some initialisation to prepare_message hook.
spi: imx: add a device specific prepare_message callback
mtd: atmel-quadspi: disallow building on ebsa110
spi: Update NPCM PSPI controller documentation
spi: npcm: Modify pspi send function
spi: Use of_node_name_eq for node name comparisons
spi: dw-mmio: add ACPI support
spi: bcm2835: Synchronize with callback on DMA termination
spi: bcm2835: Speed up FIFO access if fill level is known
spi: bcm2835: Polish transfer of DMA prologue
spi: spi-mem: add support for octal mode I/O data transfer
...
This has been a very busy release for the core, some fixes, one large new
feature and a big bit of refactoring to update the GPIO API:
- Support for coupled regulators from Dmitry Osipenko based on a prior
attempt by Maciej Purski, allowing us to handle situations where the
voltages on two regulators can't be too far apart from each other.
- Conversion of the GPIO support in both drivers and the core to use
GPIO descriptors rather than numbers, part of the overall project to
remove GPIO numbers.
- Support for standby mode suspend states from Andrei Stefanescu.
- New drivers for Allwinner AXP209, Cirrus Logic Lochnagar and
Microchip MPC16502.
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Merge tag 'regulator-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"This has been a very busy release for the core, some fixes, one large
new feature and a big bit of refactoring to update the GPIO API:
- Support for coupled regulators from Dmitry Osipenko based on a
prior attempt by Maciej Purski, allowing us to handle situations
where the voltages on two regulators can't be too far apart from
each other.
- Conversion of the GPIO support in both drivers and the core to use
GPIO descriptors rather than numbers, part of the overall project
to remove GPIO numbers.
- Support for standby mode suspend states from Andrei Stefanescu.
- New drivers for Allwinner AXP209, Cirrus Logic Lochnagar and
Microchip MPC16502"
* tag 'regulator-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (90 commits)
regulator: tps65910: fix a missing check of return value
regulator: mcp16502: Select REGMAP_I2C to fix build error
regulator: convert to DEFINE_SHOW_ATTRIBUTE
regulator: mcp16502: Fix missing n_voltages setting
regulator: mcp16502: Use #ifdef CONFIG_PM_SLEEP around mcp16502_suspend/resume_noirq
regulator: mcp16502: code cleanup
regulator: act8945a-regulator: make symbol act8945a_pm static
drivers/regulator: fix a missing check of return value
regulator: act8945a-regulator: fix 'defined but not used' compiler warning
regulator: axp20x: fix set_ramp_delay for AXP209/dcdc2
regulator: mcp16502: add support for suspend
mfd: axp20x: use explicit bit defines
mfd: axp20x: Clean up included headers
regulator: dts: enable soft-start and ramp delay for the OLinuXino Lime2
dt-bindings: mfd: axp20x: Add software based soft_start for AXP209 LDO3
regulator: axp20x: add software based soft_start for AXP209 LDO3
dt-bindings: mfd: axp20x: add support for regulator-ramp-delay for AXP209
regulator: axp20x: add support for set_ramp_delay for AXP209
mfd: axp20x: name voltage ramping define properly
regulator: mcp16502: add regulator driver for MCP16502
...
Not a lot going on this cycle. There's some more cleanup going on and
new driver support that was not quite ready in time for v4.21-rc1, but
here are a few fixes and improvements that are good to go. The Kona PWM
driver can now be built on the Cygnus architecture and the i.MX driver
gained support for hardware readback. Some small fixes are provided for
the clks711x and lpc18xx-sct drivers. Finally, to round things off some
drivers are switched to SPDX license identifiers.
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Merge tag 'pwm/for-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
Pull pwm updates from Thierry Reding:
"Not a lot going on this cycle.
There's some more cleanup going on and new driver support that was not
quite ready in time for v4.21-rc1, but here are a few fixes and
improvements that are good to go.
The Kona PWM driver can now be built on the Cygnus architecture and
the i.MX driver gained support for hardware readback. Some small fixes
are provided for the clks711x and lpc18xx-sct drivers.
Finally, to round things off some drivers are switched to SPDX license
identifiers"
* tag 'pwm/for-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
dt-bindings: pwm: rcar: Add r8a774c0 support
pwm: imx: Add ipg clock operation
pwm: clps711x: Switch to SPDX identifier
pwm: clps711x: Fix period calculation
pwm: bcm2835: Switch to SPDX identifier
pwm: Enable Kona PWM to be built for the Cygnus architecture
pwm: Drop legacy wrapper for changing polarity
pwm: imx: Implement get_state() function for hardware readout
pwm: imx: Use bitops and bitfield macros to define register values
pwm: imx: Sort include files
pwm: lpc18xx-sct: Don't reconfigure PWM in .request and .free
- Add sysadmin documentation for cpuidle (Rafael Wysocki).
- Make it possible to specify a cpuidle governor from kernel
command line, add new cpuidle state sysfs attributes for
governor evaluation, and improve the "polling" idle state
handling (Rafael Wysocki).
- Fix the handling of the "required-opps" DT property in the
operating performance points (OPP) framework, improve the
integration of it with the generic power domains (genpd)
framework, improve the handling of performance states in
them and clean up the idle states vs performance states
separation in genpd (Viresh Kumar, Ulf Hansson).
- Add a cpufreq driver called "qcom-hw" for Qualcomm SoCs using
a hardware engine to control CPU frequency transitions along
with DT bindings for it (Taniya Das).
- Fix an intel_pstate driver issue related to CPU offline and
update the documentation of it (Srinivas Pandruvada).
- Clean up the imx6q cpufreq driver (Anson Huang).
- Add SPDX license IDs to cpufreq schedutil governor files (Daniel
Lezcano).
- Switch over the runtime PM framework to using high-res timers
for device autosuspend to allow the control of it to be more
precise (Vincent Guittot).
- Disable non-wakeup ACPI GPEs during suspend-to-idle so that they
don't prevent the system from reaching the target low-power state
and simplify the suspend-to-idle handling on ACPI platforms
without full Low-Power S0 Idle (LPS0) support (Rafael Wysocki).
- Add system-wide suspend and resume support to the devfreq
framework (Lukasz Luba).
- Clean up the SmartReflex adaptive voltage scaling (AVS) driver and
add an SPDX license ID to it (Nishanth Menon, Uwe Kleine-König,
Thomas Meyer).
- Get rid of code duplication by using the DEFINE_SHOW_ATTRIBUTE
macro in some places, fix some DT node refcount leaks, and do
some other janitorial cleanups (Yangtao Li).
- Update the cpupower, intel_pstate_tracer and turbosat utilities
(Abhishek Goel, Doug Smythies, Len Brown).
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Merge tag 'pm-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"These add sysadmin documentation for cpuidle, extend the cpuidle
subsystem somewhat, improve the handling of performance states in the
generic power domains (genpd) and operating performance points (OPP)
frameworks, add a new cpufreq driver for Qualcomm SoCs, update some
other cpufreq drivers, switch over the runtime PM framework to using
high-res timers for device autosuspend, fix a problem with
suspend-to-idle on ACPI-based platforms, add system-wide suspend and
resume handling to the devfreq framework, do some janitorial cleanups
all over and update some utilities.
Specifics:
- Add sysadmin documentation for cpuidle (Rafael Wysocki).
- Make it possible to specify a cpuidle governor from kernel command
line, add new cpuidle state sysfs attributes for governor
evaluation, and improve the "polling" idle state handling (Rafael
Wysocki).
- Fix the handling of the "required-opps" DT property in the
operating performance points (OPP) framework, improve the
integration of it with the generic power domains (genpd) framework,
improve the handling of performance states in them and clean up the
idle states vs performance states separation in genpd (Viresh
Kumar, Ulf Hansson).
- Add a cpufreq driver called "qcom-hw" for Qualcomm SoCs using a
hardware engine to control CPU frequency transitions along with DT
bindings for it (Taniya Das).
- Fix an intel_pstate driver issue related to CPU offline and update
the documentation of it (Srinivas Pandruvada).
- Clean up the imx6q cpufreq driver (Anson Huang).
- Add SPDX license IDs to cpufreq schedutil governor files (Daniel
Lezcano).
- Switch over the runtime PM framework to using high-res timers for
device autosuspend to allow the control of it to be more precise
(Vincent Guittot).
- Disable non-wakeup ACPI GPEs during suspend-to-idle so that they
don't prevent the system from reaching the target low-power state
and simplify the suspend-to-idle handling on ACPI platforms without
full Low-Power S0 Idle (LPS0) support (Rafael Wysocki).
- Add system-wide suspend and resume support to the devfreq framework
(Lukasz Luba).
- Clean up the SmartReflex adaptive voltage scaling (AVS) driver and
add an SPDX license ID to it (Nishanth Menon, Uwe Kleine-König,
Thomas Meyer).
- Get rid of code duplication by using the DEFINE_SHOW_ATTRIBUTE
macro in some places, fix some DT node refcount leaks, and do some
other janitorial cleanups (Yangtao Li).
- Update the cpupower, intel_pstate_tracer and turbosat utilities
(Abhishek Goel, Doug Smythies, Len Brown)"
* tag 'pm-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (54 commits)
PM / Domains: remove define_genpd_open_function() and define_genpd_debugfs_fops()
PM-runtime: Switch autosuspend over to using hrtimers
cpufreq: qcom-hw: Add support for QCOM cpufreq HW driver
dt-bindings: cpufreq: Introduce QCOM cpufreq firmware bindings
ACPI: PM: Loop in full LPS0 mode only
ACPI: EC / PM: Disable non-wakeup GPEs for suspend-to-idle
tools/power/x86/intel_pstate_tracer: Fix non root execution for post processing a trace file
tools/power turbostat: consolidate duplicate model numbers
tools/power turbostat: fix goldmont C-state limit decoding
PM / Domains: Propagate performance state updates
PM / Domains: Factorize dev_pm_genpd_set_performance_state()
PM / Domains: Save OPP table pointer in genpd
OPP: Don't return 0 on error from of_get_required_opp_performance_state()
OPP: Add dev_pm_opp_xlate_performance_state() helper
OPP: Improve _find_table_of_opp_np()
PM / Domains: Make genpd performance states orthogonal to the idlestates
PM / sleep: convert to DEFINE_SHOW_ATTRIBUTE
cpuidle: Add 'above' and 'below' idle state metrics
PM / AVS: SmartReflex: Switch to SPDX Licence ID
PM / AVS: SmartReflex: NULL check before some freeing functions is not needed
...
with a driver cleanup and generalization for the addition of support for
the new IP. (Manish Narani)
- Removal of the /sys/bus/edac devices hierarchy. This enabled us to get
rid of the silly memory controllers maximum number notion. (Tony Luck
and Borislav Petkov)
- skx_edac improvements and fixes. (Qiuxu Zhuo and Tony Luck)
- The usual garden variety of small cleanups and fixes.
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Merge tag 'edac_for_4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
Pull EDAC updates from Borislav Petkov:
- Support for ZynqMP DDR controller support to synopsys_edac along with
a driver cleanup and generalization for the addition of support for
the new IP. (Manish Narani)
- Removal of the /sys/bus/edac devices hierarchy. This enabled us to
get rid of the silly memory controllers maximum number notion. (Tony
Luck and Borislav Petkov)
- skx_edac improvements and fixes. (Qiuxu Zhuo and Tony Luck)
- The usual garden variety of small cleanups and fixes.
* tag 'edac_for_4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: (25 commits)
EDAC, fsl_ddr: Add LS1021A to the list of supported hardware
EDAC, i5000: Remove set but not used local variables
MAINTAINERS, EDAC: Drop bouncing email
EDAC, i82975x: Fix spelling mistake "reserverd" -> "reserved"
EDAC, fsl: Move error injection under CONFIG_EDAC_DEBUG
EDAC, skx: Let EDAC core show the decoded result for debugfs
EDAC, skx: Move debugfs node under EDAC's hierarchy
EDAC, skx: Prepend hex formatting with '0x'
EDAC, skx: Fix function calling order in skx_exit()
EDAC: Drop per-memory controller buses
EDAC: Don't add devices under /sys/bus/edac
EDAC: Fix indentation issues in several EDAC drivers
EDAC, skx: Fix randconfig builds in a better way
EDAC, i82975x: Remove set but not used variable dtype
EDAC, qcom_edac: Remove irq_handled local variable
EDAC, synopsys: Add Error Injection support for ZynqMP DDR controller
EDAC, synopsys: Add ECC support for ZynqMP DDR controller
EDAC, synopsys: Add macro defines for ZynqMP DDRC
dt: bindings: Document ZynqMP DDRC in Synopsys documentation
EDAC, synopsys: Add error handling for the of_device_get_match_data() result
...
There are no intensive changes in both ALSA and ASoC core parts while
rather most of changes are a bunch of driver fixes and updates.
A large diff pattern appears in ASoC TI part which now merges both
OMAP and DaVinci stuff, but the rest spreads allover the places.
Note that this pull request includes also some updates for LED trigger
and platform drivers for mute LEDs, appearing in the diffstat as well.
Some highlights:
ASoC:
- Preparatory work for merging the audio-graph and audio-graph-scu
cards
- A merge of TI OMAP and DaVinci directories, as both product lines
get merged together. Also including a few architecture changes as
well.
- Major cleanups of the Maxim MAX9867 driver
- Small fixes for tablets & co with Intel BYT/CHT chips
- Lots of rsnd updates as usual
- Support for Asahi Kaesi AKM4118, AMD ACP3x, Intel platforms with
RT5660, Meson AXG S/PDIF inputs, several Qualcomm IPs and Xilinx I2S
controllers
HD-audio:
- Introduce audio-mute LED trigger for replacing the former hackish
dynamic binding
- Huawei WMI hotkey and mute LED support
- Refactoring of PM code and display power controls
- Headset button support in the generic jack code
- A few updates for Tegra
- Fixups for HP EliteBook and ASUS UX391UA
- Lots of updates for Intel ASoC HD-audio, including the improved DSP
detection and the fallback binding from ASoC SST to legacy HD-audio
controller drivers
Others:
- Updates for FireWire TASCAM and Fireface devices, some other fixes
- A few potential Spectre v1 fixes that are all trivial
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Merge tag 'sound-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"There are no intensive changes in both ALSA and ASoC core parts while
rather most of changes are a bunch of driver fixes and updates. A
large diff pattern appears in ASoC TI part which now merges both OMAP
and DaVinci stuff, but the rest spreads allover the places.
Note that this pull request includes also some updates for LED trigger
and platform drivers for mute LEDs, appearing in the diffstat as well.
Some highlights:
ASoC:
- Preparatory work for merging the audio-graph and audio-graph-scu
cards
- A merge of TI OMAP and DaVinci directories, as both product lines
get merged together. Also including a few architecture changes as
well.
- Major cleanups of the Maxim MAX9867 driver
- Small fixes for tablets & co with Intel BYT/CHT chips
- Lots of rsnd updates as usual
- Support for Asahi Kaesi AKM4118, AMD ACP3x, Intel platforms with
RT5660, Meson AXG S/PDIF inputs, several Qualcomm IPs and Xilinx
I2S controllers
HD-audio:
- Introduce audio-mute LED trigger for replacing the former hackish
dynamic binding
- Huawei WMI hotkey and mute LED support
- Refactoring of PM code and display power controls
- Headset button support in the generic jack code
- A few updates for Tegra
- Fixups for HP EliteBook and ASUS UX391UA
- Lots of updates for Intel ASoC HD-audio, including the improved DSP
detection and the fallback binding from ASoC SST to legacy HD-audio
controller drivers
Others:
- Updates for FireWire TASCAM and Fireface devices, some other fixes
- A few potential Spectre v1 fixes that are all trivial"
* tag 'sound-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (280 commits)
ALSA: HD-Audio: SKL+: force HDaudio legacy or SKL+ driver selection
ALSA: HD-Audio: SKL+: abort probe if DSP is present and Skylake driver selected
ALSA: HDA: export process_unsol_events()
ALSA: hda/realtek: Enable audio jacks of ASUS UX391UA with ALC294
ALSA: bebob: fix model-id of unit for Apogee Ensemble
ALSA: emu10k1: Fix potential Spectre v1 vulnerabilities
ALSA: rme9652: Fix potential Spectre v1 vulnerability
ASoC: ti: Kconfig: Remove the deprecated options
ARM: davinci_all_defconfig: Update the audio options
ARM: omap1_defconfig: Do not select ASoC by default
ARM: omap2plus_defconfig: Update the audio options
ARM: davinci: dm365-evm: Update for the new ASoC Kcofnig options
ARM: OMAP2: Update for new MCBSP Kconfig option
ARM: OMAP1: Makefile: Update for new MCBSP Kconfig option
MAINTAINERS: Add entry for sound/soc/ti and update the OMAP audio support
ASoC: ti: Merge davinci and omap directories
ALSA: hda: add mute LED support for HP EliteBook 840 G4
ALSA: fireface: code refactoring to handle model-specific registers
ALSA: fireface: add support for packet streaming on Fireface 800
ALSA: fireface: allocate isochronous resources in mode-specific implementation
...
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Merge tag 'media/v4.20-6' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
"First set of media patches contains:
- Three new platform drivers: aspeed-video seco-sed and sun5i-csi;
- One new sensor driver: imx214;
- Support for Xbox DVD Movie Playback kit remote controller;
- Removal of the legacy friio driver. The functionalities were ported
to another driver, already merged;
- New staging driver: Rockchip VPU;
- Added license text or SPDX tags to all media documentation files;
- Usual set of cleanup, fixes and enhancements"
* tag 'media/v4.20-6' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (263 commits)
media: cx23885: only reset DMA on problematic CPUs
media: ddbridge: Move asm includes after linux ones
media: drxk_hard: check if parameter is not NULL
media: docs: fix some GPL licensing ambiguity at the text
media: platform: Add Aspeed Video Engine driver
media: dt-bindings: media: Add Aspeed Video Engine binding documentation
media: vimc: fix start stream when link is disabled
media: v4l2-device: Link subdevices to their parent devices if available
media: siano: Use kmemdup instead of duplicating its function
media: rockchip vpu: remove some unused vars
media: cedrus: don't initialize pointers with zero
media: cetrus: return an error if alloc fails
media: cedrus: Add device-tree compatible and variant for A64 support
media: cedrus: Add device-tree compatible and variant for H5 support
media: dt-bindings: media: cedrus: Add compatibles for the A64 and H5
media: video-i2c: check if chip struct has set_power function
media: video-i2c: support runtime PM
media: staging: media: imx: Use of_node_name_eq for node name comparisons
media: v4l2-subdev: document controls need _FL_HAS_DEVNODE
media: vivid: Improve timestamping
...
Core changes:
- Parse the 4BAIT SFDP section
- Add a bunch of SPI NOR entries to the flash_info table
- Add the concept of SFDP fixups and use it to fix a bug on MX25L25635F
- A bunch of minor cleanups/comestic changes
NAND changes:
NAND core changes:
- kernel-doc miscellaneous fixes.
- Third batch of fixes/cleanup to the raw NAND core impacting various
controller drivers (ams-delta, marvell, fsmc, denali, tegra, vf610):
* Stopping to pass mtd_info objects to internal functions
* Reorganizing code to avoid forward declarations
* Dropping useless test in nand_legacy_set_defaults()
* Moving nand_exec_op() to internal.h
* Adding nand_[de]select_target() helpers
* Passing the CS line to be selected in struct nand_operation
* Making ->select_chip() optional when ->exec_op() is implemented
* Deprecating the ->select_chip() hook
* Moving the ->exec_op() method to nand_controller_ops
* Moving ->setup_data_interface() to nand_controller_ops
* Deprecating the dummy_controller field
* Fixing JEDEC detection
* Providing a helper for polling GPIO R/B pin
Raw NAND chip drivers changes:
- Macronix:
* Flagging 1.8V AC chips with a broken GET_FEATURES(TIMINGS)
Raw NAND controllers drivers changes:
- Ams-delta:
* Fixing the error path
* SPDX tag added
* May be compiled with COMPILE_TEST=y
* Conversion to ->exec_op() interface
* Dropping .IOADDR_R/W use
* Use GPIO API for data I/O
- Denali:
* Removing denali_reset_banks()
* Removing ->dev_ready() hook
* Including <linux/bits.h> instead of <linux/bitops.h>
* Changes to comply with the above fixes/cleanup done in the core.
- FSMC:
* Adding an SPDX tag to replace the license text
* Making conversion from chip to fsmc consistent
* Fixing unchecked return value in fsmc_read_page_hwecc
* Changes to comply with the above fixes/cleanup done in the core.
- Marvell:
* Preventing timeouts on a loaded machine (fix)
* Changes to comply with the above fixes/cleanup done in the core.
- OMAP2:
* Pass the parent of pdev to dma_request_chan() (fix)
- R852:
* Use generic DMA API
- sh_flctl:
* Converting to SPDX identifiers
- Sunxi:
* Write pageprog related opcodes to the right register: WCMD_SET (fix)
- Tegra:
* Stop implementing ->select_chip()
- VF610:
* Adding an SPDX tag to replace the license text
* Changes to comply with the above fixes/cleanup done in the core.
- Various trivial/spelling/coding style fixes.
SPI-NAND drivers changes:
- Removing the depreacated mt29f_spinand driver from staging.
- Adding support for:
* Toshiba TC58CVG2S0H
* GigaDevice GD5FxGQ4xA
* Winbond W25N01GV
JFFS2 changes:
- Fix a lockdep issue
MTD changes:
- Rework the physmap driver to merge gpio-addr-flash and physmap_of
in it
- Add a new compatible for RedBoot partitions
- Make sub-partitions RW if the parent partition was RO because of a
mis-alignment
- Add pinctrl support to the
- Addition of /* fall-through */ comments where appropriate
- Various minor fixes and cleanups
Other changes:
- Update my email address
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Merge tag 'mtd/for-4.21' of git://git.infradead.org/linux-mtd
Pull mtd updates from Boris Brezillon:
"SPI NOR Core changes:
- Parse the 4BAIT SFDP section
- Add a bunch of SPI NOR entries to the flash_info table
- Add the concept of SFDP fixups and use it to fix a bug on MX25L25635F
- A bunch of minor cleanups/comestic changes
NAND core changes:
- kernel-doc miscellaneous fixes.
- Third batch of fixes/cleanup to the raw NAND core impacting various
controller drivers (ams-delta, marvell, fsmc, denali, tegra,
vf610):
* Stop to pass mtd_info objects to internal functions
* Reorganize code to avoid forward declarations
* Drop useless test in nand_legacy_set_defaults()
* Move nand_exec_op() to internal.h
* Add nand_[de]select_target() helpers
* Pass the CS line to be selected in struct nand_operation
* Make ->select_chip() optional when ->exec_op() is implemented
* Deprecate the ->select_chip() hook
* Move the ->exec_op() method to nand_controller_ops
* Move ->setup_data_interface() to nand_controller_ops
* Deprecate the dummy_controller field
* Fix JEDEC detection
* Provide a helper for polling GPIO R/B pin
Raw NAND chip drivers changes:
- Macronix:
* Flag 1.8V AC chips with a broken GET_FEATURES(TIMINGS)
Raw NAND controllers drivers changes:
- Ams-delta:
* Fix the error path
* SPDX tag added
* May be compiled with COMPILE_TEST=y
* Conversion to ->exec_op() interface
* Drop .IOADDR_R/W use
* Use GPIO API for data I/O
- Denali:
* Remove denali_reset_banks()
* Remove ->dev_ready() hook
* Include <linux/bits.h> instead of <linux/bitops.h>
* Changes to comply with the above fixes/cleanup done in the core.
- FSMC:
* Add an SPDX tag to replace the license text
* Make conversion from chip to fsmc consistent
* Fix unchecked return value in fsmc_read_page_hwecc
* Changes to comply with the above fixes/cleanup done in the core.
- Marvell:
* Prevent timeouts on a loaded machine (fix)
* Changes to comply with the above fixes/cleanup done in the core.
- OMAP2:
* Pass the parent of pdev to dma_request_chan() (fix)
- R852:
* Use generic DMA API
- sh_flctl:
* Convert to SPDX identifiers
- Sunxi:
* Write pageprog related opcodes to the right register: WCMD_SET (fix)
- Tegra:
* Stop implementing ->select_chip()
- VF610:
* Add an SPDX tag to replace the license text
* Changes to comply with the above fixes/cleanup done in the core.
- Various trivial/spelling/coding style fixes.
SPI-NAND drivers changes:
- Remove the depreacated mt29f_spinand driver from staging.
- Add support for:
* Toshiba TC58CVG2S0H
* GigaDevice GD5FxGQ4xA
* Winbond W25N01GV
JFFS2 changes:
- Fix a lockdep issue
MTD changes:
- Rework the physmap driver to merge gpio-addr-flash and physmap_of
in it
- Add a new compatible for RedBoot partitions
- Make sub-partitions RW if the parent partition was RO because of a
mis-alignment
- Add pinctrl support to the
- Addition of /* fall-through */ comments where appropriate
- Various minor fixes and cleanups
Other changes:
- Update my email address"
* tag 'mtd/for-4.21' of git://git.infradead.org/linux-mtd: (108 commits)
mtd: rawnand: sunxi: Write pageprog related opcodes to WCMD_SET
MAINTAINERS: Update my email address
mtd: rawnand: marvell: prevent timeouts on a loaded machine
mtd: rawnand: omap2: Pass the parent of pdev to dma_request_chan()
mtd: rawnand: Fix JEDEC detection
mtd: spi-nor: Add support for is25lp016d
mtd: spi-nor: parse SFDP 4-byte Address Instruction Table
mtd: spi-nor: Add 4B_OPCODES flag to is25lp256
mtd: spi-nor: Add an SPDX tag to spi-nor.{c,h}
mtd: spi-nor: Make the enable argument passed to set_byte() a bool
mtd: spi-nor: Stop passing flash_info around
mtd: spi-nor: Avoid forward declaration of internal functions
mtd: spi-nor: Drop inline on all internal helpers
mtd: spi-nor: Add a post BFPT fixup for MX25L25635E
mtd: spi-nor: Add a post BFPT parsing fixup hook
mtd: spi-nor: Add the SNOR_F_4B_OPCODES flag
mtd: spi-nor: cast to u64 to avoid uint overflows
mtd: spi-nor: Add support for IS25LP032/064
mtd: spi-nor: add entry for mt35xu512aba flash
mtd: spi-nor: add macros related to MICRON flash
...
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Merge tag 'i3c/for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux
Pull initial i3c support from Boris Brezillon:
"Add initial support for I3C along with two I3C master controller
drivers"
* tag 'i3c/for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux:
i3c: master: cdns: fix I2C transfers in Cadence I3C master driver
ic3: off by one in mode_show()
i3c: fix an error code in i3c_master_add_i3c_dev_locked()
i3c: master: dw: fix mask operation by using the correct operator
MAINTAINERS: Add myself as the dw-i3c-master module maintainer
dt-binding: i3c: Document Synopsys DesignWare I3C
i3c: master: Add driver for Synopsys DesignWare IP
i3c: master: Remove set but not used variable 'old_i3c_scl_lim'
dt-bindings: i3c: Document Cadence I3C master bindings
i3c: master: Add driver for Cadence IP
MAINTAINERS: Add myself as the I3C subsystem maintainer
dt-bindings: i3c: Document core bindings
i3c: Add sysfs ABI spec
docs: driver-api: Add I3C documentation
i3c: Add core I3C infrastructure
The USB Power Delivery discrete components now can be enumerated by
i2c-multi-instantiate driver via several resources under single ACPI
device node (ACPI ID is INT3515).
Touchscreen support is added for the Mediacom Flexbook Edge 11.
Mellanox driver got fixed due to updates in their firmware.
The power management stub driver for AtomISP v2 is fixed in order to support
Intel Baytrail SoCs where same quirk is needed for S0ix to work.
Special key handling has been fixed for Favorites hotkey on Thinkpad, and
Screen LOCK on ASUS.
Ideapad Yoga 2 13 has no HW rfkill switch, thus, driver has been updated
to support this.
Few cleanups related to debugfs have been made in Intel IPS and
Intel PMC drivers. Besides that Intel PMC has been extended
to show more detailed information about Latency Tolerance.
The following is an automated git shortlog grouped by driver:
ACPI / scan:
- Create platform device for INT3515 ACPI nodes
Add the VLV ISP PCI ID to atomisp2_pm:
- Add the VLV ISP PCI ID to atomisp2_pm
asus-nb-wmi:
- Drop mapping of 0x33 and 0x34 scan codes
- Map 0x35 to KEY_SCREENLOCK
asus-wmi:
- Tell the EC the OS will handle the display off hotkey
dell-laptop:
- Mark expected switch fall-throughs
Documentation/ABI:
- Add new attribute for mlxreg-io sysfs interfaces
Fix config space access for intel_atomisp2_pm:
- Fix config space access for intel_atomisp2_pm
i2c:
- acpi: Introduce i2c_acpi_get_i2c_resource() helper
- acpi: Use ACPI_FAILURE instead of !ACPI_SUCCESS
- acpi: Return error pointers from i2c_acpi_new_device()
i2c-multi-instantiate:
- Allow to have same slaves
- Introduce IOAPIC IRQ support
- Distinguish IRQ resource type
- Count I2cSerialBus() resources
- Get rid of obsolete conditional
- Defer probe when no adapter found
- Accept errors of i2c_acpi_new_device()
ideapad-laptop:
- Add Yoga 2 13 to no_hw_rfkill list
iio:
- inv_mpu6050: Use i2c_acpi_get_i2c_resource() helper
intel_cht_int33fe:
- Get rid of obsolete conditional
- Accept errors of i2c_acpi_new_device()
- Remove duplicate NULL check
intel_ips:
- Convert to use DEFINE_SHOW_ATTRIBUTE macro
- Remove never happen condition
- NULL check before some freeing functions is not needed
- remove unnecessary checks in ips_debugfs_init
intel_pmc_core:
- convert to DEFINE_SHOW_ATTRIBUTE
- Decode Snoop / Non Snoop LTR
- Fix LTR IGNORE Max offset
- Show Latency Tolerance info
intel_telemetry:
- convert to DEFINE_SHOW_ATTRIBUTE
mlx-platform:
- Convert to use SPDX identifier
- Allow mlxreg-io driver activation for new systems
- Fix LED configuration
- Fix tachometer registers
- Rename new systems product names
- Add definitions for new registers
thinkpad_acpi:
- Cleanup quirks macros
- Change the keymap for Favorites hotkey
touchscreen_dmi:
- Add info for the Mediacom Flexbook Edge 11
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Merge tag 'platform-drivers-x86-v4.21-1' of git://git.infradead.org/linux-platform-drivers-x86
Pull x86 platform driver updates from Andy Shevchenko:
- The USB Power Delivery discrete components now can be enumerated by
i2c-multi-instantiate driver via several resources under single ACPI
device node (ACPI ID is INT3515).
- Touchscreen support is added for the Mediacom Flexbook Edge 11.
- Mellanox driver got fixed due to updates in their firmware.
- The power management stub driver for AtomISP v2 is fixed in order to
support Intel Baytrail SoCs where same quirk is needed for S0ix to
work.
- Special key handling has been fixed for Favorites hotkey on Thinkpad,
and Screen LOCK on ASUS.
- Ideapad Yoga 2 13 has no HW rfkill switch, thus, driver has been
updated to support this.
- Few cleanups related to debugfs have been made in Intel IPS and Intel
PMC drivers. Besides that Intel PMC has been extended to show more
detailed information about Latency Tolerance
* tag 'platform-drivers-x86-v4.21-1' of git://git.infradead.org/linux-platform-drivers-x86: (41 commits)
platform/x86: mlx-platform: Convert to use SPDX identifier
Documentation/ABI: Add new attribute for mlxreg-io sysfs interfaces
platform/x86: mlx-platform: Allow mlxreg-io driver activation for new systems
platform/x86: mlx-platform: Fix LED configuration
platform/x86: mlx-platform: Fix tachometer registers
platform/x86: mlx-platform: Rename new systems product names
platform/x86: mlx-platform: Add definitions for new registers
platform/x86: intel_telemetry: convert to DEFINE_SHOW_ATTRIBUTE
platform/x86: intel_pmc_core: convert to DEFINE_SHOW_ATTRIBUTE
platform/x86: thinkpad_acpi: Cleanup quirks macros
platform/x86: touchscreen_dmi: Add info for the Mediacom Flexbook Edge 11
platform/x86: Fix config space access for intel_atomisp2_pm
platform/x86: Add the VLV ISP PCI ID to atomisp2_pm
platform/x86: intel_ips: Convert to use DEFINE_SHOW_ATTRIBUTE macro
platform/x86: intel_ips: Remove never happen condition
platform/x86: intel_ips: NULL check before some freeing functions is not needed
platform/x86: intel_ips: remove unnecessary checks in ips_debugfs_init
iio: inv_mpu6050: Use i2c_acpi_get_i2c_resource() helper
ACPI / scan: Create platform device for INT3515 ACPI nodes
platform/x86: i2c-multi-instantiate: Allow to have same slaves
...
Those functions are not only deprecated, but gone for good.
Fixes: 62cd1c40ce ("watchdog: kill unref/ref ops")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Add the first rule we recently agreed on.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Freescale updates from Scott:
"Highlights include elimination of legacy clock bindings use from dts
files, an 83xx watchdog handler, fixes to old dts interrupt errors, and
some minor cleanup."
Remove dead code related to internal IV generators, which are no longer
used since they've been replaced with the "seqiv" and "echainiv"
templates. The removed code includes:
- The "givcipher" (GIVCIPHER) algorithm type. No algorithms are
registered with this type anymore, so it's unneeded.
- The "const char *geniv" member of aead_alg, ablkcipher_alg, and
blkcipher_alg. A few algorithms still set this, but it isn't used
anymore except to show via /proc/crypto and CRYPTO_MSG_GETALG.
Just hardcode "<default>" or "<none>" in those cases.
- The 'skcipher_givcrypt_request' structure, which is never used.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Document support for the Watchdog Timer (WDT) Controller in the
Qualcomm PM8916 PMIC module.
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Shared mailboxes are a mechanism to transport data from one processor in
the system to another. They are bidirectional links with both a producer
and a consumer. Interrupts are used to let the consumer know when data
was written to the mailbox by the producer, and to let the producer know
when the consumer has read the data from the mailbox. These interrupts
are mapped to one or more "shared interrupts". Typically each processor
in the system owns one of these shared interrupts.
Add documentation to the device tree bindings about how clients can use
mailbox specifiers to request a specific shared mailbox and select which
direction they drive. Also document how to specify the shared interrupts
in addition to the existing doorbell interrupt.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Add more SoC compatible strings to support more chips.
Signed-off-by: Yuantian Tang <andy.tang@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Scott Wood <oss@buserror.net>
Add theory of operation for the security support that's going into
libnvdimm.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Jing Lin <jing.lin@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Jaguar2 has the same register layout as Ocelot but it has 64 pins, meaning
that there are 2 registers instead of one.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
As pointed by Rob, CRU is a kind of block that can't be guaranteed to
have everything exposed as subnodes. It's a set of various registers
that aren't tied to any single device. It could be described much more
accurately as MFD (Multi-Function Device).
Some hardware blocks may indeed want to access a register or two of the
CRU which requires describing it as the "syscon".
While at it replace exmple node name with the standard "pinctrl" (also
pointed out by Rob).
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This patch adds a DT binding documentation for
Cadence GPIO controller.
Signed-off-by: Jan Kotas <jank@cadence.com>
Reviewed-by: Rob Herring <robh@kernel.org>
[Removed interrupt-parent]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The pinctrl node can have multiple regulators for each of its GPIO banks.
Add the property descriptions.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This patch describes the Security Module's usage as a GPIO
controller for its PIOBU pins. These pins have the special
property of maintaining their voltage during suspend-to-mem.
Signed-off-by: Andrei Stefanescu <andrei.stefanescu@microchip.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add's support to Raspberry Pi's 7" Touch device. Instead of using a
conventional bus all information is copied into a memory mapped area by
RPi's firmware.
Based on the driver found in RPi's kernel repository.
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pablo Neira Ayuso says:
====================
Netfilter updates for net-next
The following patchset contains Netfilter updates for net-next:
1) Support for destination MAC in ipset, from Stefano Brivio.
2) Disallow all-zeroes MAC address in ipset, also from Stefano.
3) Add IPSET_CMD_GET_BYNAME and IPSET_CMD_GET_BYINDEX commands,
introduce protocol version number 7, from Jozsef Kadlecsik.
A follow up patch to fix ip_set_byindex() is also included
in this batch.
4) Honor CTA_MARK_MASK from ctnetlink, from Andreas Jaggi.
5) Statify nf_flow_table_iterate(), from Taehee Yoo.
6) Use nf_flow_table_iterate() to simplify garbage collection in
nf_flow_table logic, also from Taehee Yoo.
7) Don't use _bh variants of call_rcu(), rcu_barrier() and
synchronize_rcu_bh() in Netfilter, from Paul E. McKenney.
8) Remove NFC_* cache definition from the old caching
infrastructure.
9) Remove layer 4 port rover in NAT helpers, use random port
instead, from Florian Westphal.
10) Use strscpy() in ipset, from Qian Cai.
11) Remove NF_NAT_RANGE_PROTO_RANDOM_FULLY branch now that
random port is allocated by default, from Xiaozhou Liu.
12) Ignore NF_NAT_RANGE_PROTO_RANDOM too, from Florian Westphal.
13) Limit port allocation selection routine in NAT to avoid
softlockup splats when most ports are in use, from Florian.
14) Remove unused parameters in nf_ct_l4proto_unregister_sysctl()
from Yafang Shao.
15) Direct call to nf_nat_l4proto_unique_tuple() instead of
indirection, from Florian Westphal.
16) Several patches to remove all layer 4 NAT indirections,
remove nf_nat_l4proto struct, from Florian Westphal.
17) Fix RTP/RTCP source port translation when SNAT is in place,
from Alin Nastac.
18) Selective rule dump per chain, from Phil Sutter.
19) Revisit CLUSTERIP target, this includes a deadlock fix from
netns path, sleep in atomic, remove bogus WARN_ON_ONCE()
and disallow mismatching IP address and MAC address.
Patchset from Taehee Yoo.
20) Update UDP timeout to stream after 2 seconds, from Florian.
21) Shrink UDP established timeout to 120 seconds like TCP timewait.
22) Sysctl knobs to set GRE timeouts, from Yafang Shao.
23) Move seq_print_acct() to conntrack core file, from Florian.
24) Add enum for conntrack sysctl knobs, also from Florian.
25) Place nf_conntrack_acct, nf_conntrack_helper, nf_conntrack_events
and nf_conntrack_timestamp knobs in the core, from Florian Westphal.
As a side effect, shrink netns_ct structure by removing obsolete
sysctl anchors, also from Florian.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Last set of patches for 4.21. mt76 is still in very active development
and having some refactoring as well as new features. But also other
drivers got few new features and fixes.
Major changes:
ath10k
* add amsdu support for QCA6174 monitor mode
* report tx rate using the new ieee80211_tx_rate_update() API
* wcn3990 support is not experimental anymore
iwlwifi
* support for FW version 43 for 9000 and 22000 series
brcmfmac
* add support for CYW43012 SDIO chipset
* add the raw 4354 PCIe device ID for unprogrammed Cypress boards
mwifiex
* add NL80211_STA_INFO_RX_BITRATE support
mt76
* use the same firmware for mt76x2e and mt76x2u
* mt76x0e survey support
* more unification between mt76x2 and mt76x0
* mt76x0e AP mode support
* mt76x0e DFS support
* rework and fix tx status handling for mt76x0 and mt76x2
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Merge tag 'wireless-drivers-next-for-davem-2018-12-20' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next
Kalle Valo says:
====================
wireless-drivers-next patches for 4.21
Last set of patches for 4.21. mt76 is still in very active development
and having some refactoring as well as new features. But also other
drivers got few new features and fixes.
Major changes:
ath10k
* add amsdu support for QCA6174 monitor mode
* report tx rate using the new ieee80211_tx_rate_update() API
* wcn3990 support is not experimental anymore
iwlwifi
* support for FW version 43 for 9000 and 22000 series
brcmfmac
* add support for CYW43012 SDIO chipset
* add the raw 4354 PCIe device ID for unprogrammed Cypress boards
mwifiex
* add NL80211_STA_INFO_RX_BITRATE support
mt76
* use the same firmware for mt76x2e and mt76x2u
* mt76x0e survey support
* more unification between mt76x2 and mt76x0
* mt76x0e AP mode support
* mt76x0e DFS support
* rework and fix tx status handling for mt76x0 and mt76x2
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
One of the primary issues with Firmware Assisted Dump (fadump) on Power
is that it needs a large amount of memory to be reserved. On large
systems with TeraBytes of memory, this reservation can be quite
significant.
In some cases, fadump fails if the memory reserved is insufficient, or
if the reserved memory was DLPAR hot-removed.
In the normal case, post reboot, the preserved memory is filtered to
extract only relevant areas of interest using the makedumpfile tool.
While the tool provides flexibility to determine what needs to be part
of the dump and what memory to filter out, all supported distributions
default this to "Capture only kernel data and nothing else".
We take advantage of this default and the Linux kernel's Contiguous
Memory Allocator (CMA) to fundamentally change the memory reservation
model for fadump.
Instead of setting aside a significant chunk of memory nobody can use,
this patch uses CMA instead, to reserve a significant chunk of memory
that the kernel is prevented from using (due to MIGRATE_CMA), but
applications are free to use it. With this fadump will still be able
to capture all of the kernel memory and most of the user space memory
except the user pages that were present in CMA region.
Essentially, on a P9 LPAR with 2 cores, 8GB RAM and current upstream:
[root@zzxx-yy10 ~]# free -m
total used free shared buff/cache available
Mem: 7557 193 6822 12 541 6725
Swap: 4095 0 4095
With this patch:
[root@zzxx-yy10 ~]# free -m
total used free shared buff/cache available
Mem: 8133 194 7464 12 475 7338
Swap: 4095 0 4095
Changes made here are completely transparent to how fadump has
traditionally worked.
Thanks to Aneesh Kumar and Anshuman Khandual for helping us understand
CMA and its usage.
TODO:
- Handle case where CMA reservation spans nodes.
Signed-off-by: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This patch adds two sysctl knobs for GRE:
net.netfilter.nf_conntrack_gre_timeout = 30
net.netfilter.nf_conntrack_gre_timeout_stream = 180
Update the Documentation as well.
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
We have no explicit signal when a UDP stream has terminated, peers just
stop sending.
For suspected stream connections a timeout of two minutes is sane to keep
NAT mapping alive a while longer.
It matches tcp conntracks 'timewait' default timeout value.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates 2018-12-20
This series contains updates to e100, igb, ixgbe, i40e and ice drivers.
I replaced spinlocks for mutex locks to reduce the latency on CPU0 for
igb when updating the statistics. This work was based off a patch
provided by Jan Jablonsky, which was against an older version of the igb
driver.
Jesus adjusts the receive packet buffer size from 32K to 30K when
running in QAV mode, to stay within 60K for total packet buffer size for
igb.
Vinicius adds igb kernel documentation regarding the CBS algorithm and
its implementation in the i210 family of NICs.
YueHaibing from Huawei fixed the e100 driver that was potentially
passing a NULL pointer, so use the kernel macro IS_ERR_OR_NULL()
instead.
Konstantin Khorenko fixes i40e where we were not setting up the
neigh_priv_len in our net_device, which caused the driver to read beyond
the neighbor entry allocated memory.
Miroslav Lichvar extends the PTP gettime() to read the system clock by
adding support for PTP_SYS_OFFSET_EXTENDED ioctl in i40e.
Young Xiao fixed the ice driver to only enable NAPI on q_vectors that
actually have transmit and receive rings.
Kai-Heng Feng fixes an igb issue that when placed in suspend mode, the
NIC does not wake up when a cable is plugged in. This was due to the
driver not setting PME during runtime suspend.
Stephen Douthit enables the ixgbe driver allow DSA devices to use the
MII interface to talk to switches.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Use 3-byte 'nop' and 'j' instructions that are always present. Don't let
assembler mark a spot right after patchable 'j' instruction as
unreachable and later put literals or padding bytes there. Add separate
implementations of patch_text for SMP and UP cases, avoiding use of
atomics on UP.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Document properties reg and interrupts for OMAP GPIO controller bindings
Also add unit address in node name of the example
Signed-off-by: Andreas Klinger <ak@it-klinger.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Lots of conflicts, by happily all cases of overlapping
changes, parallel adds, things of that nature.
Thanks to Stephen Rothwell, Saeed Mahameed, and others
for their guidance in these resolutions.
Signed-off-by: David S. Miller <davem@davemloft.net>
Add some pointers to the definition of the CBS algorithm, and some
notes about the limits of its implementation in the i210 family of
controllers.
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This adds new dt entry ext-fem-name, it is used by ath10k driver
to select correct timing parameters and configure it in target wifi hardware.
The Front End Module(FEM) normally includes tx power amplifier(PA) and
rx low noise amplifier(LNA). The default timing parameters like tx end to
PA off timing values were fine tuned for internal FEM used in reference
design. And these timing values can not be same if ODM modifies hardware
design with different external FEM. This DT entry helps to choose correct
timing values in driver if different external FEM hardware used.
Signed-off-by: Bhagavathi Perumal S <bperumal@codeaurora.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
In qcom,ath10k documentation, ath10k is used as node name in the example of
pci based device. Normally, node name should be class of device and not the
model name, so fix it to node name "wifi". And remove the property device_type
pci since only pci bridges should have this property.
Signed-off-by: Bhagavathi Perumal S <bperumal@codeaurora.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
WCN3990 wifi module can optionally make use of the IOMMU.
Add binding documentation for phandle to the IOMMU and
the stream id of wifi iommu block.
Signed-off-by: Govind Singh <govinds@codeaurora.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Tested-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Add missing optional properties in WCN3990 wifi node.
Signed-off-by: Govind Singh <govinds@codeaurora.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Tested-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Get rid of some unneeded structural elements around the new (to RST)
pathname-lookup document.
Signed-off-by: NeilBrown <neilb@suse.com>
[ jc: grabbed from email and changelog added ]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The name of the struct is configfs_bin_attribute instead of
configfs_attribute
Signed-off-by: Helen Koike <helen.koike@collabora.com>
Fixes: 03607ace80 ("configfs: implement binary attributes")
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Several functions in mm/slab_common.c have kernel-doc comments, it makes
perfect sense to link them to the MM API reference.
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
NXP i.MX8QXP is an ARMv8 SoC with a Cortex-M4 core inside as
system controller, the system controller is in charge of system
power, clock and secure RTC etc. management, Linux kernel
has to communicate with system controller via MU (message unit)
IPC to do RTC operation, this patch adds binding doc for i.MX
system controller RTC driver.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Add some documentation on which CPU versions map to which ISA
versions. This is all publicly available information, some of it
already in the kernel source, but it's much nicer to have it all in
one place.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
We now always return zeroed memory from dma_alloc_coherent. Note that
simply passing GFP_ZERO to dma_alloc_coherent wasn't always doing the
right thing to start with given that various allocators are not backed
by the page allocator and thus would ignore GFP_ZERO.
Signed-off-by: Christoph Hellwig <hch@lst.de>
remove fine-tune property in device tree, modify
the corresponding description in dt-binding.
Signed-off-by: Biao Huang <biao.huang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Remove skb->sp and allocate secpath storage via extension
infrastructure. This also reduces sk_buff by 8 bytes on x86_64.
Total size of allyesconfig kernel is reduced slightly, as there is
less inlined code (one conditional atomic op instead of two on
skb_clone).
No differences in throughput in following ipsec performance tests:
- transport mode with aes on 10GB link
- tunnel mode between two network namespaces with aes and null cipher
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 4cb3653df0 ("stm class: Document the MIPI SyS-T protocol usage")
added a document describing the SyS-T protocol usage, but forgot to add
it to the directory index. Fix that.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Fixes: 4cb3653df0 ("stm class: Document the MIPI SyS-T protocol usage")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add DT bindings for PCIe controller implemented in UniPhier SoCs when
configured in Root Complex (host) mode. This controller is based on
the DesignWare PCIe core.
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
The Amlogic Meson PCIe host controller is based on the Synopsys DesignWare
PCI core. This patch adds documentation for the DT bindings in Meson PCIe
controller.
Signed-off-by: Yue Wang <yue.wang@amlogic.com>
Signed-off-by: Hanjie Lin <hanjie.lin@amlogic.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
RZ/G2E (R8A774C0) SoC also has the R-Car Gen3 compatible SCIF and
HSCIF ports, so document the SoC specific bindings.
Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
RZ/G2M (R8A774A1) SoC also has the R-Car Gen3 compatible SCIF and
HSCIF ports, so document the SoC specific bindings. While at it,
update the RZ/G1 and RZ/G2 family specific strings description as
outdated.
Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Adding the document to the usb index file and fixing a few
references. Also, exposing the code examples as "literal
blocks" so they are more easy to read.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The same effects can be achieved by setting the dma_boundary to
PAGE_SIZE - 1 and the max_segment_size to PAGE_SIZE, so shift those
settings into the drivers. Note that in many cases the setting might
be bogus, but this keeps the status quo.
[mkp: fix myrs and myrb]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The BCM4330 is a 802.11 a/b/g/n WiFi + Bluetooth 4.0 chip from Broadcom.
It is found in the Ampak AP6330 WiFi+BT module. The partiular one I have
identifies as BCM4330B1 for Bluetooth and BCM4330/4 for WiFi.
It is unclear if the AP6330 module uses this revision of the BCM4330, or
if there are multiple revisions. The module does not have revision
markings. This patch elects to use just BCM4330 for the compatible
string.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
The BCM20702A1 is a Bluetooth 4.0 chip from Broadcom. It is found in the
Ampak AP6210 WiFi+BT module, identified from the read verbose config info
command response. However the Bluetooth firmware provided by vendors uses
the name BCM20710. This patch elects to use the chip ID returned by the
chip for the compatible string.
Reviewed-by: Rob Herring <robh@kernel.org>
Tested-by: Ondrej Jirman <megous@megous.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
The Broadcom Bluetooth chips have two power inputs, VBAT and VDDIO.
The former provides overall power for the chip, while the latter powers
the I/O pins and buffers.
This patch adds properties for the two so we can describe the power
supply relationships.
Reviewed-by: Rob Herring <robh@kernel.org>
Tested-by: Ondrej Jirman <megous@megous.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
The Broadcom Bluetooth controllers can take up to two external clocks:
an external frequency reference, substituting the main crystal, and a
LPO clock at 32.768 kHz substituting the internal LPO clock.
In particular, the external LPO clock must be used when the controller
does not have NVRAM connected, and the main reference frequency is not
the default 20 MHz. This is described in detail in the datasheet.
The original "extclk" clock name is ambiguous as to which of these it
refers to, and some designs might even require both.
This patch deprecates the existing name, and adds "txco" and "lpo".
Tested-by: Ondrej Jirman <megous@megous.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Add QCOM cpufreq firmware device bindings for Qualcomm Technology Inc's
SoCs. This is required for managing the cpu frequency transitions which are
controlled by the hardware engine.
Signed-off-by: Taniya Das <tdas@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Tested-by: Amit Kucheria <amit.kucheria@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Add a compatible string for Microcrystal rv2123 as the reset procedure seem
to be differing. However, the current driver works just fine.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Document SoC specific bindings for RZ/G2M (r8a774a1) SoC.
Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Document SoC specific compatible strings for r8a77470. No driver change
is needed as the fallback strings will activate the right code.
Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Document SoC specific bindings for R-Car M3-W (r8a7796) SoC.
Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
- Parse the 4BAIT SFDP section
- Add a bunch of SPI NOR entries to the flash_info table
- Add the concept of SFDP fixups and use it to fix a bug on MX25L25635F
- A bunch of minor cleanups/comestic changes
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Merge tag 'spi-nor/for-4.21' of git://git.infradead.org/linux-mtd into mtd/next
Core changes:
- Parse the 4BAIT SFDP section
- Add a bunch of SPI NOR entries to the flash_info table
- Add the concept of SFDP fixups and use it to fix a bug on MX25L25635F
- A bunch of minor cleanups/comestic changes
NAND core changes:
- kernel-doc miscellaneous fixes.
- Third batch of fixes/cleanup to the raw NAND core impacting various
controller drivers (ams-delta, marvell, fsmc, denali, tegra, vf610):
* Stopping to pass mtd_info objects to internal functions
* Reorganizing code to avoid forward declarations
* Dropping useless test in nand_legacy_set_defaults()
* Moving nand_exec_op() to internal.h
* Adding nand_[de]select_target() helpers
* Passing the CS line to be selected in struct nand_operation
* Making ->select_chip() optional when ->exec_op() is implemented
* Deprecating the ->select_chip() hook
* Moving the ->exec_op() method to nand_controller_ops
* Moving ->setup_data_interface() to nand_controller_ops
* Deprecating the dummy_controller field
* Fixing JEDEC detection
* Providing a helper for polling GPIO R/B pin
Raw NAND chip drivers changes:
- Macronix:
* Flagging 1.8V AC chips with a broken GET_FEATURES(TIMINGS)
Raw NAND controllers drivers changes:
- Ams-delta:
* Fixing the error path
* SPDX tag added
* May be compiled with COMPILE_TEST=y
* Conversion to ->exec_op() interface
* Dropping .IOADDR_R/W use
* Use GPIO API for data I/O
- Denali:
* Removing denali_reset_banks()
* Removing ->dev_ready() hook
* Including <linux/bits.h> instead of <linux/bitops.h>
* Changes to comply with the above fixes/cleanup done in the core.
- FSMC:
* Adding an SPDX tag to replace the license text
* Making conversion from chip to fsmc consistent
* Fixing unchecked return value in fsmc_read_page_hwecc
* Changes to comply with the above fixes/cleanup done in the core.
- Marvell:
* Preventing timeouts on a loaded machine (fix)
* Changes to comply with the above fixes/cleanup done in the core.
- OMAP2:
* Pass the parent of pdev to dma_request_chan() (fix)
- R852:
* Use generic DMA API
- sh_flctl:
* Converting to SPDX identifiers
- Sunxi:
* Write pageprog related opcodes to the right register: WCMD_SET (fix)
- Tegra:
* Stop implementing ->select_chip()
- VF610:
* Adding an SPDX tag to replace the license text
* Changes to comply with the above fixes/cleanup done in the core.
- Various trivial/spelling/coding style fixes.
SPI-NAND drivers changes:
- Removing the depreacated mt29f_spinand driver from staging.
- Adding support for:
* Toshiba TC58CVG2S0H
* GigaDevice GD5FxGQ4xA
* Winbond W25N01GV
- A bunch of new irqchip drivers (RDA8810PL, Madera, imx-irqsteer)
- Updates for new (and old) platforms (i.MX8MQ, F1C100s)
- A number of SPDX cleanups
- A workaround for a very broken GICv3 implementation
- A platform-msi fix
- Various cleanups
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Merge tag 'irqchip-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core
Pull irqchip updates from Marc Zyngier:
- A bunch of new irqchip drivers (RDA8810PL, Madera, imx-irqsteer)
- Updates for new (and old) platforms (i.MX8MQ, F1C100s)
- A number of SPDX cleanups
- A workaround for a very broken GICv3 implementation
- A platform-msi fix
- Various cleanups
Add hwlocks as optional property
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
This adds the DT binding for the Freescale IRQSTEER interrupt
multiplexer found in the i.MX8 familiy SoCs.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
The only remaining user of board_time_init() is the of-generic
machine, and that just calls the global timer_init() function.
Calling that one has no effect on non-DT platforms, so we can
simply call it unconditionally in place of board_time_init().
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The "num-lanes" property is not used, remove it.
Signed-off-by: Honghui Zhang <honghui.zhang@mediatek.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Adding a new compatible for 24c2048.
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Merge tag 'at24-4.21-updates-for-wolfram' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into i2c/for-5.0
at24: updates for 4.21
Adding a new compatible for 24c2048.
Add Freescale MAG3110 dt-bindings and remove it from trivial-devices
dt-bingding doc.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
[robh: fixup trivial-devices.txt change for trivial-devices.yaml]
Signed-off-by: Rob Herring <robh@kernel.org>
Address comments on the documentation after Yong's original patch.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This patch adds the details about the IPU3 Imaging Unit driver (both CIO2
and IMGU).
Signed-off-by: Rajmohan Mani <rajmohan.mani@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
From Mimi:
In Linux 4.19, a new LSM hook named security_kernel_load_data was
upstreamed, allowing LSMs and IMA to prevent the kexec_load
syscall. Different signature verification methods exist for verifying
the kexec'ed kernel image. This pull request adds additional support
in IMA to prevent loading unsigned kernel images via the kexec_load
syscall, independently of the IMA policy rules, based on the runtime
"secure boot" flag. An initial IMA kselftest is included.
In addition, this pull request defines a new, separate keyring named
".platform" for storing the preboot/firmware keys needed for verifying
the kexec'ed kernel image's signature and includes the associated IMA
kexec usage of the ".platform" keyring.
(David Howell's and Josh Boyer's patches for reading the
preboot/firmware keys, which were previously posted for a different
use case scenario, are included here.)
Those files are meant to be dual GPL 2.0 and GFDL without
implicit sections. However, by a wrong cut-and-paste, I ended
by applying a GPL 2+ license text to it, while still using the
GPL 2.0 SPDX tag, with would cause an ambiguity about the
licensing model.
Solve this by explicitly mentioning that the dual licensing
is between GPL 2.0 and GFDL and correcting the text.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Merge tag 'v4.20-rc7' into patchwork
Linux 4.20-rc7
* tag 'v4.20-rc7': (403 commits)
Linux 4.20-rc7
scripts/spdxcheck.py: always open files in binary mode
checkstack.pl: fix for aarch64
userfaultfd: check VM_MAYWRITE was set after verifying the uffd is registered
fs/iomap.c: get/put the page in iomap_page_create/release()
hugetlbfs: call VM_BUG_ON_PAGE earlier in free_huge_page()
memblock: annotate memblock_is_reserved() with __init_memblock
psi: fix reference to kernel commandline enable
arch/sh/include/asm/io.h: provide prototypes for PCI I/O mapping in asm/io.h
mm/sparse: add common helper to mark all memblocks present
mm: introduce common STRUCT_PAGE_MAX_SHIFT define
alpha: fix hang caused by the bootmem removal
XArray: Fix xa_alloc when id exceeds max
drm/vmwgfx: Protect from excessive execbuf kernel memory allocations v3
MAINTAINERS: Daniel for drm co-maintainer
drm/amdgpu: drop fclk/gfxclk ratio setting
IB/core: Fix oops in netdev_next_upper_dev_rcu()
dm thin: bump target version
drm/vmwgfx: remove redundant return ret statement
drm/i915: Flush GPU relocs harder for gen3
...
When a serial port continuously experiences input overrun from
(1) continuous receive characters from remote and or (2) hardware
issues, its interrupt handler can preempt other tasks especially
when the system is busy (ie. boot up period). This can cause other
tasks to get starved of processing time from the CPU.
When this dts binding is enabled and input overrun on the serial port
is detected, serial port receive will be throttled to give some breathing
room for processing other tasks. Value provided will be in milliseconds.
&serial0{
overrun-throttle-ms = <500>;
};
Signed-off-by: Darwin Dingel <darwin.dingel@alliedtelesis.co.nz>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- Add the HSIC support for imx
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Merge tag 'usb-ci-v4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb into usb-next
Peter writes:
- Improve the over-current handling for imx
- Add the HSIC support for imx
* tag 'usb-ci-v4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb:
usb: chipidea: imx: allow to configure oc polarity on i.MX25
usb: chipidea: imx: Warn if oc polarity isn't specified
usb: chipidea: imx: support configuring for active low oc signal
doc: usb: ci-hdrc-usb2: Add pinctrl properties for HSIC pin groups
usb: chipidea: host: override ehci->hub_control
usb: chipidea: imx: add HSIC support
usb: chipidea: add flag for imx hsic implementation
Qcom's implementation of arm,mmu-500 works well with current
arm-smmu driver implementation. Adding a soc specific compatible
along with arm,mmu-500 makes the bindings future safe.
Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Cc: Will Deacon <will.deacon@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
The driver fetches a thermal zone using the string "cpu_thermal" for
tuning operation. Add a note for the same.
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Commit 26a4f38d13 ("dt-bindings: mmc: sdhci-of-arasan: Add new
compatible for AM654 MMC PHY") added a new compatible for supporting
controllers on TI's AM65x SOCs. It turns out that the controller is
not compatible with the arasan driver's phy and consumer model as it
requires some phy registers for core sdhci functionality. This calls
for the binding to branch out to a new driver.
Therefore, add a deprecated message for the ti,am654-sdhci-5.1 binding.
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
In sdhci-msm-v5 and beyond, the MCI registers are removed, so there is only
one register region required.
Signed-off-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Document support for the RZ/A2 (R7S9210) SoC.
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Add the description of the zoned, nr_zones and chunk_sectors sysfs queue
attributes to Documentation/block/queue-sysfs.txt. The description of
the zoned and chunk_sector attributes are mostly copied from
ABI/testing/sysfs-block (added a typo fix). While at it, also fix a
typo in the description of the io_poll_delay attribute.
nr_zones description is also added to ABI/testing/sysfs-block and
contact email address updated for the zoned attribute.
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Introduce SENSOR_DEVICE_ATTR_{RO,RW,WO} and SENSOR_DEVICE_ATTR_2_{RO,RW,WO}
as simplified variants of SENSOR_DEVICE_ATTR and SENSOR_DEVICE_ATTR_2 to
simplify the source code, improve readbility, and reduce the chance of
inconsistencies.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
The STLM75 is a high-precision digital CMOS temperature sensor
IC with a sigma-delta temperature-to-digital converter.
The configuration register mapping is similar to existing lm75
but the sample rate is 150ms(max).
Tested on real hardware and verified temperature readings are correct.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
The TI TMP451 temperature sensors are compatible with the National LM90
temperature sensors.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
These are Negative Temperature Coefficient thermistors, like the others
in the list.
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
There are a few sysfs entries being exposed to user space by the
ina2xx hwmon driver while not getting explicitly documented. So
this patch just adds a description section for them.
Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
The tmp108 does have an alert output that can be used as interrupt source
and can of course also be used as part of a thermal sensor setup for things
like thermal-based cpu frequencies, so document the necessary properties.
Signed-off-by: Heiko Stuebner <heiko.stuebner@bq.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add explainations for some general IP counters, SACK and DSACK related
counters
Signed-off-by: yupeng <yupeng0921@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
* clk-renesas:
clk: renesas: rcar-gen3: Add HS400 quirk for SD clock
clk: renesas: rcar-gen3: Add documentation for SD clocks
clk: renesas: rcar-gen3: Set state when registering SD clocks
clk: renesas: r8a77995: Simplify PLL3 multiplier/divider
clk: renesas: r8a77995: Add missing CPEX clock
clk: renesas: r8a77995: Remove non-existent SSP clocks
clk: renesas: r8a77995: Remove non-existent VIN5-7 module clocks
clk: renesas: r8a77995: Correct parent clock of DU
clk: renesas: r8a77990: Correct parent clock of DU
clk: renesas: r8a77970: Add CPEX clock
clk: renesas: r8a77965: Add CPEX clock
clk: renesas: r8a7796: Add CPEX clock
clk: renesas: r8a7795: Add CPEX clock
clk: renesas: r8a774a1: Add CPEX clock
dt-bindings: clock: r8a7796: Remove CSIREF clock
dt-bindings: clock: r8a7795: Remove CSIREF clock
clk: renesas: Mark rza2_cpg_clk_register static
clk: renesas: r7s9210: Add USB clocks
clk: renesas: r8a77970: Add RPC clocks
clk: renesas: r7s9210: Add SDHI clocks
* clk-allwinner:
clk: sunxi-ng: a64: Allow parent change for VE clock
clk: sunxi-ng: a33: Set CLK_SET_RATE_PARENT for all audio module clocks
clk: sunxi-ng: a33: Use sigma-delta modulation for audio PLL
clk: sunxi-ng: h3: Allow parent change for ve clock
clk: sunxi-ng: add support for suniv F1C100s SoC
dt-bindings: clock: Add Allwinner suniv F1C100s CCU
clk: sunxi-ng: h3/h5: Fix CSI_MCLK parent
clk: sunxi-ng: r40: Force LOSC parent to RTC LOSC output
clk: sunxi-ng: sun50i: a64: Use sigma-delta modulation for audio PLL
clk: sunxi-ng: a64: Fix gate bit of DSI DPHY
clk: sunxi-ng: Enable DE2_CCU for SUN8I and SUN50I
clk: sunxi-ng: Add support for H6 DE3 clocks
dt-bindings: clock: sun8i-de2: Add H6 DE3 clock description
clk: sunxi-ng: h6: Set video PLLs limits
clk: sunxi-ng: Use u64 for calculation of NM rate
clk: sunxi-ng: Adjust MP clock parent rate when allowed
clk: sunxi-ng: sun50i: h6: Fix MMC clock mux width
clk: sunxi-ng: enable so-said LDOs for A64 SoC's pll-mipi clock
* clk-tegra:
clk: tegra: Return the exact clock rate from clk_round_rate
clk: tegra30: Use Tegra CPU powergate helper function
soc/tegra: pmc: Drop SMP dependency from CPU APIs
clk: tegra: Fix maximum audio sync clock for Tegra124/210
clk: tegra: get rid of duplicate defines
clk: tegra20: Check whether direct PLLM sourcing is turned off for EMC
clk: tegra20: Turn EMC clock gate into divider
* clk-meson: (25 commits)
clk: meson: axg-audio: use the clk input helper function
clk: meson: add clk-input helper function
clk: meson: Mark some things static
clk: meson: meson8b: add the read-only video clock trees
clk: meson: meson8b: add the fractional divider for vid_pll_dco
clk: meson: meson8b: fix the offset of vid_pll_dco's N value
clk: meson: Fix GXL HDMI PLL fractional bits width
clk: meson: meson8b: add the CPU clock post divider clocks
clk: meson: meson8b: rename cpu_div2/cpu_div3 to cpu_in_div2/cpu_in_div3
clk: meson: clk-regmap: add read-only gate ops
clk: meson: meson8b: allow changing the CPU clock tree
clk: meson: meson8b: run from the XTAL when changing the CPU frequency
clk: meson: meson8b: add support for more M/N values in sys_pll
clk: meson: meson8b: mark the CPU clock as CLK_IS_CRITICAL
clk: meson: meson8b: do not use cpu_div3 for cpu_scale_out_sel
clk: meson: clk-pll: check if the clock is already enabled
clk: meson: meson8b: fix the width of the cpu_scale_div clock
clk: meson: meson8b: fix incorrect divider mapping in cpu_scale_table
clk: meson: meson8b: use the HHI syscon if available
dt-bindings: clock: meson8b: use the registers from the HHI syscon
...
* clk-rockchip:
clk: rockchip: add clock-id to gate of ACODEC for rk3328
clk: rockchip: add clock ID of ACODEC for rk3328
clk: rockchip: fix ID of 8ch clock of I2S1 for rk3328
clk: rockchip: fix I2S1 clock gate register for rk3328
clk: rockchip: make rk3188 hclk_vio_bus critical
clk: rockchip: fix rk3188 sclk_mac_lbtest parameter ordering
clk: rockchip: fix rk3188 sclk_smc gate data
clk: rockchip: fix typo in rk3188 spdif_frac parent
- NXP QorIQ T1023 SoC support
- Introduce a 'protected-clocks' binding for firmware protected clks
- Shrink code some with DEFINE_SHOW_ATTRIBUTE()
* clk-qoriq-t1023:
clk: qoriq: add more chips support
* clk-protected-binding:
clk: qcom: Support 'protected-clocks' property
dt-bindings: clk: Introduce 'protected-clocks' property
* clk-define-show-macro:
clk: tegra: Change to use DEFINE_SHOW_ATTRIBUTE macro
clk: nomadik: Change to use DEFINE_SHOW_ATTRIBUTE macro
* clk-static:
clk: stm32mp1: drop pointless static qualifier in stm32_register_hw_clk()
With every new Hyper-V Enlightenment we implement we're forced to add a
KVM_CAP_HYPERV_* capability. While this approach works it is fairly
inconvenient: the majority of the enlightenments we do have corresponding
CPUID feature bit(s) and userspace has to know this anyways to be able to
expose the feature to the guest.
Add KVM_GET_SUPPORTED_HV_CPUID ioctl (backed by KVM_CAP_HYPERV_CPUID, "one
cap to rule them all!") returning all Hyper-V CPUID feature leaves.
Using the existing KVM_GET_SUPPORTED_CPUID doesn't seem to be possible:
Hyper-V CPUID feature leaves intersect with KVM's (e.g. 0x40000000,
0x40000001) and we would probably confuse userspace in case we decide to
return these twice.
KVM_CAP_HYPERV_CPUID's number is interim: we're intended to drop
KVM_CAP_HYPERV_STIMER_DIRECT and use its number instead.
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Before things go out of hand, make it possible to pass
flags when requesting "own" descriptors from a gpio_chip.
This is necessary if the chip wants to request a GPIO with
active low semantics, for example.
Cc: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Roger Quadros <rogerq@ti.com>
Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This patch adds board specific bindings required for dais, In particular
for compressed dais and dai direction.
Board specific setup involves setting up some of dais as compressed dais
and also specify direction of any dai. Some of the dais might only
support capture/playback depending on the board level wiring.
These two new dt properties will allow such flexibilty at board level dts.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
simple-card and simple-scu-card are very similar driver,
but the former is supporting normal sound card,
the latter is supporting DPCM sound card.
We couldn't use normal sound and DPCM sound in same time by
one sound card. This patch merges both sound card into
simple-card. Now we can use both feature on same driver.
simple-card is now supporting .compatible = "simple-scu-audio-card".
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
audio-graph-card and audio-graph-scu-card are very similar driver,
but the former is supporting normal sound card,
the latter is supporting DPCM sound card.
We couldn't use normal sound and DPCM sound in same sound card by
audio-graph-card.
This patch merges both feature into it on Documentation.
Now we can use both feature on same driver.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
There are two problems with KVM_GET_DIRTY_LOG. First, and less important,
it can take kvm->mmu_lock for an extended period of time. Second, its user
can actually see many false positives in some cases. The latter is due
to a benign race like this:
1. KVM_GET_DIRTY_LOG returns a set of dirty pages and write protects
them.
2. The guest modifies the pages, causing them to be marked ditry.
3. Userspace actually copies the pages.
4. KVM_GET_DIRTY_LOG returns those pages as dirty again, even though
they were not written to since (3).
This is especially a problem for large guests, where the time between
(1) and (3) can be substantial. This patch introduces a new
capability which, when enabled, makes KVM_GET_DIRTY_LOG not
write-protect the pages it returns. Instead, userspace has to
explicitly clear the dirty log bits just before using the content
of the page. The new KVM_CLEAR_DIRTY_LOG ioctl can also operate on a
64-page granularity rather than requiring to sync a full memslot;
this way, the mmu_lock is taken for small amounts of time, and
only a small amount of time will pass between write protection
of pages and the sending of their content.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Document the interface for metadata output, including
V4L2_BUF_TYPE_META_OUTPUT buffer type and V4L2_CAP_META_OUTPUT capability
bits.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Tested-by: Tian Shu Qiu <tian.shu.qiu@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
The Low-Power Clock Gate (LPCG) modules contain a local programming
model to control the clock gates for the peripherals. An LPCG module
is used to locally gate the clocks for the associated peripheral.
Note:
This level of clock gating is provided after the clocks are generated
by the SCU resources and clock controls. Thus even if the clock is
enabled by these control bits, it might still not be running based
on the base resource.
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: devicetree@vger.kernel.org
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Adding nvdimm key format type to encrypted keys in order to limit the size
of the key to 32bytes.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Acked-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Two bugfixes, each with test-suite updates, two improvements to the
test-suite without associated bugs, and one patch adding a missing API.
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Merge tag 'xarray-4.20-rc7' of git://git.infradead.org/users/willy/linux-dax
Pull XArray fixes from Matthew Wilcox:
"Two bugfixes, each with test-suite updates, two improvements to the
test-suite without associated bugs, and one patch adding a missing
API"
* tag 'xarray-4.20-rc7' of git://git.infradead.org/users/willy/linux-dax:
XArray: Fix xa_alloc when id exceeds max
XArray tests: Check iterating over multiorder entries
XArray tests: Handle larger indices more elegantly
XArray: Add xa_cmpxchg_irq and xa_cmpxchg_bh
radix tree: Don't return retry entries from lookup
Add some words about the mount option "smackfstransmute=label".
Signed-off-by: José Bollo <jobol@nonadev.net>
Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Access to GICR_WAKER is restricted on msm8996 SoC in Hypervisor.
There are many devices out there with this restriction in place
and there has been no update to this firmware since last few years,
making those devices totally unusable for upstream development.
IIDR register value conflicts with other SoCs, using compatible seems
to be the only way to apply quirks required for msm8996 based SoCs.
Without this quirk many qcom SoCs (atleast 3 that I know) are
unable to boot mainline.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Convert trivial-devices.txt to DT schema format using json-schema.
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
The Brownstone board is compatible with "mrvl,mmp2". The actual DTS
already contains the string -- add it to the binding doc as well.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Rob Herring <robh@kernel.org>
Convert Tegra SoC bindings to DT schema format using json-schema.
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: devicetree@vger.kernel.org
Cc: linux-tegra@vger.kernel.org
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Convert ZTE SoC bindings to DT schema format using json-schema.
Cc: Jun Nie <jun.nie@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: devicetree@vger.kernel.org
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Add missing description for Ultra96, zcu104, zcu106 and zcu111.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Convert Xilinx SoC bindings to DT schema format using json-schema.
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Acked-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Convert VIA SoC bindings to DT schema format using json-schema.
Cc: Tony Prisk <linux@prisktech.co.nz>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Convert ST STi SoC bindings to DT schema format using json-schema.
Acked-by: Patrice Chotard <patrice.chotard@st.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Linus Torvalds