17118 Commits

Author SHA1 Message Date
Linus Torvalds
5e10bf6cb4 6 hotfixes. 3 are cc:stable and the remainder address post-6.7 issues
or aren't considered appropriate for backporting.
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Merge tag 'mm-hotfixes-stable-2024-02-27-14-52' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morton:
 "Six hotfixes. Three are cc:stable and the remainder address post-6.7
  issues or aren't considered appropriate for backporting"

* tag 'mm-hotfixes-stable-2024-02-27-14-52' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mm/debug_vm_pgtable: fix BUG_ON with pud advanced test
  mm: cachestat: fix folio read-after-free in cache walk
  MAINTAINERS: add memory mapping entry with reviewers
  mm/vmscan: fix a bug calling wakeup_kswapd() with a wrong zone index
  kasan: revert eviction of stack traces in generic mode
  stackdepot: use variable size records for non-evictable entries
2024-02-27 16:44:15 -08:00
Maxime Ripard
3fe262eca5 MAINTAINERS: Update drm.git URL
Now that the main DRM tree has moved to Gitlab, adjust the MAINTAINERS
git trees to reflect the location change.

Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20240226152123.131406-1-mripard@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2024-02-27 13:47:01 +01:00
Changhuang Liang
e4e5350361 irqchip: Add StarFive external interrupt controller
Add StarFive external interrupt controller for JH8100 SoC.

Signed-off-by: Changhuang Liang <changhuang.liang@starfivetech.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ley Foon Tan <leyfoon.tan@starfivetech.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://lore.kernel.org/r/20240226055025.1669223-3-changhuang.liang@starfivetech.com
2024-02-26 15:09:18 +01:00
Daniel Vetter
f112b68f27 Linux 6.8-rc6
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Merge v6.8-rc6 into drm-next

Thomas Zimmermann asked to backmerge -rc6 for drm-misc branches,
there's a few same-area-changed conflicts (xe and amdgpu mostly) that
are getting a bit too annoying.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2024-02-26 11:41:07 +01:00
Guenter Roeck
4adee4e1a3 MAINTAINERS: Drop redundant hwmon entries
I am listed as maintainer of several individual hardware monitoring drivers
and for the hardware monitoring subsystem itself. That is redundant and
just bloats the MAINTAINERS file. Drop all the redundant entries.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-02-25 12:37:46 -08:00
Cosmo Chou
1b2ca93cd0 hwmon: Add driver for Astera Labs PT5161L retimer
This driver implements support for temperature monitoring of Astera Labs
PT5161L series PCIe retimer chips.

This driver implementation originates from the CSDK available at
Link: https://github.com/facebook/openbmc/tree/helium/common/recipes-lib/retimer-v2.14
The communication protocol utilized is based on the I2C/SMBus standard.

Signed-off-by: Cosmo Chou <chou.cosmo@gmail.com>
Link: https://lore.kernel.org/r/20240206125420.3884300-2-chou.cosmo@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-02-25 12:37:37 -08:00
Aleksa Savic
ed3e03790c hwmon: Add driver for ASUS ROG RYUJIN II 360 AIO cooler
This driver exposes hardware sensors of the ASUS ROG RYUJIN II 360
all-in-one CPU liquid cooler, which communicates through a proprietary
USB HID protocol. Report offsets were initially discovered in [1] by
Florian Freudiger.

Available sensors are pump, internal and external
(controller) fan speed in RPM, their duties in PWM, as well as
coolant temperature.

Attaching external fans to the controller is optional and allows them
to be controlled from the device. If not connected, the fan-related
sensors will report zeroes. The controller is a separate hardware unit
that comes bundled with the AIO and connects to it to allow fan control.

The addressable LCD screen is not supported in this
driver and should be controlled through userspace tools.

[1]: https://github.com/liquidctl/liquidctl/pull/653

Tested-by: Florian Freudiger <florian.freudiger@proton.me>
Signed-off-by: Aleksa Savic <savicaleksa83@gmail.com>
Link: https://lore.kernel.org/r/20240108094453.22986-1-savicaleksa83@gmail.com
[groeck: Add HID dependency]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-02-25 12:37:37 -08:00
Aleksa Savic
f3b4b146eb hwmon: Add driver for NZXT Kraken X and Z series AIO CPU coolers
This driver enables hardware monitoring support for NZXT Kraken
X53/X63/X73 and Z53/Z63/Z73 all-in-one CPU liquid coolers.

All models expose liquid temperature and pump speed (in RPM), as well as
PWM control (natively only through a temp-PWM curve, but the driver also
emulates fixed PWM control on top of that). The Z-series models
additionally expose the speed and duty of an optionally connected fan,
with the same PWM control capabilities.

Pump and fan duty control mode can be set through pwm[1-2]_enable,
where 1 is for the manual control mode and 2 is for the liquid temp
to PWM curve mode. Writing a 0 disables control of the channel through
the driver after setting its duty to 100%. As it is not possible to query
the device for the active mode, the driver keeps track of it.

The temperature of the curves relates to the fixed [20-59] C range, per
device limitations, and correlating to the detected liquid temperature.
Only PWM values (ranging from 0-255) can be set.

The addressable RGB LEDs and LCD screen, included only on Z-series models,
are not supported in this driver.

Co-developed-by: Jonas Malaco <jonas@protocubo.io>
Signed-off-by: Jonas Malaco <jonas@protocubo.io>
Co-developed-by: Yury Zhuravlev <stalkerg@gmail.com>
Signed-off-by: Yury Zhuravlev <stalkerg@gmail.com>
Signed-off-by: Aleksa Savic <savicaleksa83@gmail.com>
Link: https://lore.kernel.org/r/20240129111932.368232-1-savicaleksa83@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-02-25 12:37:37 -08:00
Javier Carrasco
3af350929e hwmon: Add support for Amphenol ChipCap 2
The Amphenol ChipCap 2 is a capacitive polymer humidity and temperature
sensor with an integrated EEPROM and minimum/maximum humidity alarms.

All device variants offer an I2C interface and depending on the part
number, two different output modes:
- CC2D: digital output
- CC2A: analog (PDM) output

This driver adds support for the digital variant (CC2D part numbers),
which includes the following part numbers:
- non-sleep measurement mode (CC2D23, CC2D25, CC2D33, CC2D35)
- sleep measurement mode (CC2D23S, CC2D25S, CC2D33S, CC2D35S)

The Chipcap 2 EEPROM can be accessed to configure a series of parameters
like the minimum/maximum humidity alarm threshold and hysteresis. The
EEPROM is only accessible in the command window after a power-on reset.
The default window lasts 10 ms if no Start_CM command is sent. After the
command window is finished (either after the mentioned timeout of after
a Start_NOM command is sent), the device enters the normal operation
mode and makes a first measurement automatically.

Unfortunately, the device does not provide any hardware or software
reset and therefore the driver must trigger power cycles to enter the
command mode. A dedicated, external regulator is required for that.

This driver keeps the device off until a measurement or access to the
EEPROM is required, making use of the first automatic measurement to
avoid different code paths for sleep and non-sleep devices.

The minimum and maximum humidity alarms are configured with two
registers per alarm: one stores the alarm threshold and the other one
keeps the value that turns off the alarm. The alarm signals are only
updated when a measurement is carried out.

Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Link: https://lore.kernel.org/r/20240130-topic-chipcap2-v6-5-260bea05cf9b@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-02-25 12:37:37 -08:00
Ivor Wanders
d612bf839f hwmon: add fan speed monitoring driver for Surface devices
Adds a driver that provides read only access to the fan speed for Microsoft
Surface Pro devices. The fan speed is always regulated by the EC and cannot
be influenced directly.

Signed-off-by: Ivor Wanders <ivor@iwanders.net>
Link: https://github.com/linux-surface/kernel/pull/144
Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com>
Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20240131005856.10180-2-ivor@iwanders.net
[groeck:
 - Declare surface_fan_hwmon_is_visible() static
 - Add dependency on SURFACE_AGGREGATOR_BUS
]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-02-25 12:37:36 -08:00
Nuno Sa
cbc29538db hwmon: Add driver for LTC4282
The LTC4282 hot swap controller allows a board to be safely inserted and
removed from a live backplane. Using one or more external N-channel pass
transistors, board supply voltage and inrush current are ramped up at an
adjustable rate. An I2C interface and onboard ADC allows for monitoring
of board current, voltage, power, energy and fault status.

Signed-off-by: Nuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20240129-b4-ltc4282-support-v4-3-fe75798164cc@analog.com
[groeck: clamp value range in ltc4282_write_voltage_byte_cached()]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2024-02-25 12:37:10 -08:00
Richard Weinberger
eb54235315 MAINTAINERS: Add Zhihao Cheng as UBI/UBIFS reviewer
Recognizing Zhihao Cheng's valuable contributions,
let's officially appoint him as a UBI/UBIFS reviewer.
His demonstrated expertise and assistance make him a valuable
addition to the MTD community.

Cc: Zhihao Cheng <chengzhihao1@huawei.com>
Acked-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2024-02-25 21:18:58 +01:00
Linus Torvalds
c46ac50ebe USB fixes for 6.8-rc6
Here are some small USB fixes for 6.8-rc6 to resolve some reported
 problems.  These include:
   - regression fixes with typec tpcm code as reported by many
   - cdnsp and cdns3 driver fixes
   - usb role setting code bugfixes
   - build fix for uhci driver
   - ncm gadget driver bugfix
   - MAINTAINERS entry update
 
 All of these have been in linux-next all week with no reported issues
 and there is at least one fix in here that is in Thorsten's regression
 list that is being tracked.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-6.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are some small USB fixes for 6.8-rc6 to resolve some reported
  problems. These include:

   - regression fixes with typec tpcm code as reported by many

   - cdnsp and cdns3 driver fixes

   - usb role setting code bugfixes

   - build fix for uhci driver

   - ncm gadget driver bugfix

   - MAINTAINERS entry update

  All of these have been in linux-next all week with no reported issues
  and there is at least one fix in here that is in Thorsten's regression
  list that is being tracked"

* tag 'usb-6.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: typec: tpcm: Fix issues with power being removed during reset
  MAINTAINERS: Drop myself as maintainer of TYPEC port controller drivers
  usb: gadget: ncm: Avoid dropping datagrams of properly parsed NTBs
  Revert "usb: typec: tcpm: reset counter when enter into unattached state after try role"
  usb: gadget: omap_udc: fix USB gadget regression on Palm TE
  usb: dwc3: gadget: Don't disconnect if not started
  usb: cdns3: fix memory double free when handle zero packet
  usb: cdns3: fixed memory use after free at cdns3_gadget_ep_disable()
  usb: roles: don't get/set_role() when usb_role_switch is unregistered
  usb: roles: fix NULL pointer issue when put module's reference
  usb: cdnsp: fixed issue with incorrect detecting CDNSP family controllers
  usb: cdnsp: blocked some cdns3 specific code
  usb: uhci-grlib: Explicitly include linux/platform_device.h
2024-02-25 10:41:57 -08:00
Daniel Baluta
892cc21756 MAINTAINERS: Use a proper mailinglist for NXP i.MX development
So far we used an internal linux-imx@nxp.com email address to
gather all patches related to NXP i.MX development.

Let's switch to an open mailing list that provides ability
for people from the community to subscribe and also have
a proper archive.

List interface at: https://lists.linux.dev.
Archive is at: https://lore.kernel.org/imx/

Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2024-02-25 21:12:56 +08:00
Greg Kroah-Hartman
d4551c189d IIO: 1st set of new device support, features and cleanup for 6.9
IIO Backend support
 ===================
 
 New approach from Nuno Sa to the problem of reuse of drivers with
 IIO devices that are actually the combination of a highspeed chip
 and an FPGA core handling the data capture and flows. It will hopefully
 also apply to some other split designs. The ad9467 and axi-adi drivers
 are converted over to this framework.
 
 New device support
 ==================
 
 adi,admfm2000
 - New driver for this dual microwave down converter.
 ams,as73211
 - Add support for as7331 UV sensor.
 richtek,rtq6056
 - Add support for related parts RTQ6053 and RTQ6059
 st,lsm6dsx
 - Add ASM330LHHXG1 accelerometer and gyro support (mainly IDs)
 ti,ads1298
 - New driver for this medical ADC.
 
 Features
 ========
 
 tests
 - Unit tests for the gain-time-scale helper library.
 bosch,bmi088
 - I2C support.
 bosh,bmi160
 - Add 10EC5280 ACPI ID. Used in a number of devices that won't get fixed.
   The ID is actually a PCI ID belonging to realtech. No response was received
   to earlier attempts to notify them of this.
   The manufacturers of some devices have replied to say they will not fix
   this incorrect ID. Add the ID and hope it isn't a problem.
 bosch,bmi323
 - Add BOSC0200 ACPI ID. Note this is a duplicate of one in the bmc150
   driver (it appears these parts share a windows driver).
   Both drivers perform an ID check that is safe on the other part before
   successfully probing.
 hid-sensors-als
 - Add color temperature and chromaticity support. Note this is a replacement
   for the series reverted in 6.8 that correctly handles all the potential
   channel combinations.
 honeywell,hsc030pa
 - Triggered buffer support (after driver cleanup).
 honeywell,mprls00025pa
 - Improved error handling.
 - New DT binding to allow use of part number triplet as provided in data sheet
   to specify equivalent of most of the binding more efficiently.
 - SPI support.
 memsic,mxc4005
 - ACPI ID MDA6655 as seen in the Chuwi Minibook X 2023
 ti,hdc3020
 - Add threshold event support (after some driver cleanup)
 veml,vcnl4000
 - Switch to high resolution proximity measurement.
 
 Cleanup
 =======
 Various minor typo fixes and better use of defines etc.
 
 Treewide
 - Stop using ACPI_PTR(). The savings in space are small and not worth
   the complexity of __maybe_unused of ifdef guards.  To avoid use in
   new IIO drivers based on copy and paste, clean it out.
 - cleanup.h based handling of iio_device_claim_direct_mode()/
   iio_device_release_direct_mode() using scope_cond_guard().
   In many drivers this is combined with other automated cleanup
   to give maximum simplifications.
   An initial set of drivers are converted over to this infrastructure.
 
 Tools
 - Use rewinddir() instead of seekdir() to return to start of file.
 
 core
 - Make iio_bus_type constant.
 
 adi,ad16475
 - Use irq_get_trigger_type() instead of opencoding.
 adi,ad16480
 - Use irq_get_trigger_type() instead of opencoding.
 adi,ad-sigma-delta
 - Avoid overwriting IRQ flags if provided by firmware.
 ams,as73211
 - Use IIO_VAL_FRACTIONAL for scales to simplify the code and potentially
   improve accuracy.
 gts-library
 - Use a div64_u64() instead of a loop to do a division.
 honeywell,mprls00025pa
 - Clean up dt-binding doc.
 - Drop defaults when DT binding not providing values. Very unlikely
   these were useful given they were wrong for vast majority of supported
   devices.
 - Whitespace cleanup
 miramems,da280
 - Use i2c_get_match_data() to replace hand rolled ACPI matching code.
 semtech,sx9324
 - Avoid unnecessary copying of property strings.
 st,lsm6dsx
 - Improve docs, particularly wrt to making addition of new device
   support less noisy.
 st,lsm9ds0
 - Use dev_err_probe() in all probe() error handling.
 - Improved header includes.
 - Tidy up termination of ID tables.
 ti,ads1014
 - Correct upper bound on PGA (wrong value had no actual impact)
 ti,afe4403/4404
 - devm_ useage to simplify error handling in probe() and allow() remove to
   be dropped.
 voltage-divider
 - Add dt-binding for io-channel-cells to allow such a device to be both
   an IIO consumer and IIO producer at the same time.
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Merge tag 'iio-for-6.9a' of http://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next

Jonathan writes:

IIO: 1st set of new device support, features and cleanup for 6.9

IIO Backend support
===================

New approach from Nuno Sa to the problem of reuse of drivers with
IIO devices that are actually the combination of a highspeed chip
and an FPGA core handling the data capture and flows. It will hopefully
also apply to some other split designs. The ad9467 and axi-adi drivers
are converted over to this framework.

New device support
==================

adi,admfm2000
- New driver for this dual microwave down converter.
ams,as73211
- Add support for as7331 UV sensor.
richtek,rtq6056
- Add support for related parts RTQ6053 and RTQ6059
st,lsm6dsx
- Add ASM330LHHXG1 accelerometer and gyro support (mainly IDs)
ti,ads1298
- New driver for this medical ADC.

Features
========

tests
- Unit tests for the gain-time-scale helper library.
bosch,bmi088
- I2C support.
bosh,bmi160
- Add 10EC5280 ACPI ID. Used in a number of devices that won't get fixed.
  The ID is actually a PCI ID belonging to realtech. No response was received
  to earlier attempts to notify them of this.
  The manufacturers of some devices have replied to say they will not fix
  this incorrect ID. Add the ID and hope it isn't a problem.
bosch,bmi323
- Add BOSC0200 ACPI ID. Note this is a duplicate of one in the bmc150
  driver (it appears these parts share a windows driver).
  Both drivers perform an ID check that is safe on the other part before
  successfully probing.
hid-sensors-als
- Add color temperature and chromaticity support. Note this is a replacement
  for the series reverted in 6.8 that correctly handles all the potential
  channel combinations.
honeywell,hsc030pa
- Triggered buffer support (after driver cleanup).
honeywell,mprls00025pa
- Improved error handling.
- New DT binding to allow use of part number triplet as provided in data sheet
  to specify equivalent of most of the binding more efficiently.
- SPI support.
memsic,mxc4005
- ACPI ID MDA6655 as seen in the Chuwi Minibook X 2023
ti,hdc3020
- Add threshold event support (after some driver cleanup)
veml,vcnl4000
- Switch to high resolution proximity measurement.

Cleanup
=======
Various minor typo fixes and better use of defines etc.

Treewide
- Stop using ACPI_PTR(). The savings in space are small and not worth
  the complexity of __maybe_unused of ifdef guards.  To avoid use in
  new IIO drivers based on copy and paste, clean it out.
- cleanup.h based handling of iio_device_claim_direct_mode()/
  iio_device_release_direct_mode() using scope_cond_guard().
  In many drivers this is combined with other automated cleanup
  to give maximum simplifications.
  An initial set of drivers are converted over to this infrastructure.

Tools
- Use rewinddir() instead of seekdir() to return to start of file.

core
- Make iio_bus_type constant.

adi,ad16475
- Use irq_get_trigger_type() instead of opencoding.
adi,ad16480
- Use irq_get_trigger_type() instead of opencoding.
adi,ad-sigma-delta
- Avoid overwriting IRQ flags if provided by firmware.
ams,as73211
- Use IIO_VAL_FRACTIONAL for scales to simplify the code and potentially
  improve accuracy.
gts-library
- Use a div64_u64() instead of a loop to do a division.
honeywell,mprls00025pa
- Clean up dt-binding doc.
- Drop defaults when DT binding not providing values. Very unlikely
  these were useful given they were wrong for vast majority of supported
  devices.
- Whitespace cleanup
miramems,da280
- Use i2c_get_match_data() to replace hand rolled ACPI matching code.
semtech,sx9324
- Avoid unnecessary copying of property strings.
st,lsm6dsx
- Improve docs, particularly wrt to making addition of new device
  support less noisy.
st,lsm9ds0
- Use dev_err_probe() in all probe() error handling.
- Improved header includes.
- Tidy up termination of ID tables.
ti,ads1014
- Correct upper bound on PGA (wrong value had no actual impact)
ti,afe4403/4404
- devm_ useage to simplify error handling in probe() and allow() remove to
  be dropped.
voltage-divider
- Add dt-binding for io-channel-cells to allow such a device to be both
  an IIO consumer and IIO producer at the same time.

* tag 'iio-for-6.9a' of http://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (106 commits)
  iio: imu: bmi323: Add ACPI Match Table
  iio: accel: bmc150: Document duplicate ACPI entries with bmi323 driver
  iio: adc: ti-ads1298: Add driver
  dt-bindings: iio: adc: ti-ads1298: Add bindings
  iio: pressure: hsc030pa add triggered buffer
  iio: pressure: hsc030pa add mandatory delay
  iio: pressure: hsc030pa: update datasheet URLs
  iio: pressure: hsc030pa: include cleanup
  iio: pressure: hsc030pa: use signed type to hold div_64() result
  dt-bindings: iio: pressure: honeywell,hsc030pa.yaml add spi props
  iio: st_sensors: lsm9ds0: Use common style for terminator in ID tables
  iio: st_sensors: lsm9ds0: Don't use "proxy" headers
  iio: st_sensors: lsm9ds0: Use dev_err_probe() everywhere
  iio: adc: adi-axi-adc: move to backend framework
  iio: adc: ad9467: convert to backend framework
  iio: add the IIO backend framework
  iio: buffer-dmaengine: export buffer alloc and free functions
  of: property: add device link support for io-backends
  dt-bindings: adc: axi-adc: update bindings for backend framework
  dt-bindings: adc: ad9467: add new io-backend property
  ...
2024-02-25 14:11:41 +01:00
Chengming Zhou
fa4b759212 MAINTAINERS: add Chengming Zhou as a zswap reviewer
I have been actively contributing to zswap and reviewing zswap patches for
a while, and I am already getting CC'd on most of them.  So add myself as
a reviewer, will continue to work on it and help with the review process.

Link: https://lkml.kernel.org/r/20240220073851.865113-1-chengming.zhou@linux.dev
Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Nhat Pham <nphamcs@gmail.com>
Cc: Yosry Ahmed <yosryahmed@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-02-23 17:48:32 -08:00
Mike Rapoport (IBM)
b659a7c2ce MAINTAINERS: update mm and memcg entries
Add F: lines for memory management and memory cgroup include files.

Link: https://lkml.kernel.org/r/20240208055727.142387-1-rppt@kernel.org
Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-02-23 17:48:25 -08:00
Andrew Morton
1f1183c4c0 merge mm-hotfixes-stable into mm-nonmm-stable to pick up stackdepot changes 2024-02-23 17:28:43 -08:00
Lorenzo Stoakes
00130266f6 MAINTAINERS: add memory mapping entry with reviewers
Recently there have been a number of patches which have affected various
aspects of the memory mapping logic as implemented in mm/mmap.c where it
would have been useful for regular contributors to have been notified.

Add an entry for this part of mm in particular with regular contributors
tagged as reviewers.

Link: https://lkml.kernel.org/r/20240220064410.4639-1-lstoakes@gmail.com
Signed-off-by: Lorenzo Stoakes <lstoakes@gmail.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-02-23 17:27:13 -08:00
Linus Torvalds
95e73fb16a 14 hotfixes. 10 are cc:stable and the remainder address post-6.7 issues
or aren't considered appropriate for backporting.
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Merge tag 'mm-hotfixes-stable-2024-02-22-15-02' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morton:
 "A batch of MM (and one non-MM) hotfixes.

  Ten are cc:stable and the remainder address post-6.7 issues or aren't
  considered appropriate for backporting"

* tag 'mm-hotfixes-stable-2024-02-22-15-02' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  kasan: guard release_free_meta() shadow access with kasan_arch_is_ready()
  mm/damon/lru_sort: fix quota status loss due to online tunings
  mm/damon/reclaim: fix quota stauts loss due to online tunings
  MAINTAINERS: mailmap: update Shakeel's email address
  mm/damon/sysfs-schemes: handle schemes sysfs dir removal before commit_schemes_quota_goals
  mm: memcontrol: clarify swapaccount=0 deprecation warning
  mm/memblock: add MEMBLOCK_RSRV_NOINIT into flagname[] array
  mm/zswap: invalidate duplicate entry when !zswap_enabled
  lib/Kconfig.debug: TEST_IOV_ITER depends on MMU
  mm/swap: fix race when skipping swapcache
  mm/swap_state: update zswap LRU's protection range with the folio locked
  selftests/mm: uffd-unit-test check if huge page size is 0
  mm/damon/core: check apply interval in damon_do_apply_schemes()
  mm: zswap: fix missing folio cleanup in writeback race path
2024-02-23 09:43:21 -08:00
Lee Jones
3eeadf8ff9 Merge branches 'ib-mfd-cros-watchdog-6.9' and 'ib-mfd-input-thermal-6.9' into ibs-for-mfd-merged 2024-02-23 14:57:16 +00:00
Basavaraj Natikar
0edf25679f MAINTAINERS: change in AMD ptdma maintainer
As 'Sanjay R Mehta' stepped down from the role of ptdma maintainer, I
request to be added as the new maintainer of AMD PTDMA.

Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Link: https://lore.kernel.org/r/20240222083004.1907070-1-Basavaraj.Natikar@amd.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2024-02-23 12:42:36 +05:30
Lukas Bulwahn
e3027b0d0b MAINTAINERS: adjust file entry in MEDIATEK DMA DRIVER
Commit fa3400504824 ("dt-bindings: dma: convert MediaTek High-Speed
controller to the json-schema")  converts mtk-hsdma.txt to
mediatek,mt7622-hsdma.yaml, but misses to adjust its reference in
MAINTAINERS.

Hence, ./scripts/get_maintainer.pl --self-test=patterns complains about a
broken reference.

Repair this file reference in MEDIATEK DMA DRIVER.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20240222135847.5160-1-lukas.bulwahn@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2024-02-23 12:41:21 +05:30
Inochi Amaoto
0f46e1339e MAINTAINERS: Setup proper info for SOPHGO vendor support
Add git tree that maintaines sophgo vendor code.
Also replace Chao Wei with myself, since he does not have enough time.
Since sophgo vendor code is maintained, remove itself from
`RISC-V MISC SOC`

Acked-by: Chao Wei <chao.wei@sophgo.com>
Reviewed-by: Chen Wang <unicorn_wang@outlook.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/IA1PR20MB4953B158F6F575840F3D4267BB7D2@IA1PR20MB4953.namprd20.prod.outlook.com
Signed-off-by: Inochi Amaoto <inochiama@outlook.com>
Signed-off-by: Chen Wang <unicorn_wang@outlook.com>
2024-02-23 14:21:04 +08:00
Florian Fainelli
c2f0961a45 MAINTAINERS: Update SCMI entry with HWMON driver
scmi-hwmon.c is tightly coupled with the SCMI subsystem, fold it under
the SCMI subsystem MAINTAINERS umbrella.

Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://lore.kernel.org/r/20240222193027.920006-1-florian.fainelli@broadcom.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2024-02-23 02:01:13 +00:00
Andy Shevchenko
fd8ed16c24 bitmap: Step down as a reviewer
Too many things are going on, and reviewing BITMAP related code
seems not the best I can do, hence step down as a reviewer of
the BITMAP library.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Yury Norov <yury.norov@gmail.com>
2024-02-22 16:33:30 -08:00
Ryusuke Konishi
1b12e8bba1 nilfs2: MAINTAINERS: drop unreachable project mirror site
The hosting site where the nilfs project had a mirror site continues to be
in trouble, so we have decided not to use that site.  This will reflect it
in the MAINTAINERS file.

Link: https://lkml.kernel.org/r/20240208093018.6334-1-konishi.ryusuke@gmail.com
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-02-22 15:38:55 -08:00
Jakub Kicinski
fecc51559a Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.

Conflicts:

net/ipv4/udp.c
  f796feabb9f5 ("udp: add local "peek offset enabled" flag")
  56667da7399e ("net: implement lockless setsockopt(SO_PEEK_OFF)")

Adjacent changes:

net/unix/garbage.c
  aa82ac51d633 ("af_unix: Drop oob_skb ref before purging queue in GC.")
  11498715f266 ("af_unix: Remove io_uring code for GC.")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-22 15:29:26 -08:00
Nhat Pham
2b2178c407 selftests: zswap: add zswap selftest file to zswap maintainer entry
Patch series "fix and extend zswap kselftests", v3.

Fix a broken zswap kselftest due to cgroup zswap writeback counter
renaming, and add 2 zswap kselftests, one to cover the (z)swapin case, and
another to check that no zswapping happens when the cgroup limit is 0.

Also, add the zswap kselftest file to zswap maintainer entry so that
get_maintainers script can find zswap maintainers.


This patch (of 3):

Make it easier for contributors to find the zswap maintainers when they
update the zswap tests.

Link: https://lkml.kernel.org/r/20240205225608.3083251-1-nphamcs@gmail.com
Link: https://lkml.kernel.org/r/20240205225608.3083251-2-nphamcs@gmail.com
Signed-off-by: Nhat Pham <nphamcs@gmail.com>
Acked-by: Yosry Ahmed <yosryahmed@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Zefan Li <lizefan.x@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-02-22 15:27:16 -08:00
Ankit Agrawal
701ab93585 vfio/nvgrace-gpu: Add vfio pci variant module for grace hopper
NVIDIA's upcoming Grace Hopper Superchip provides a PCI-like device
for the on-chip GPU that is the logical OS representation of the
internal proprietary chip-to-chip cache coherent interconnect.

The device is peculiar compared to a real PCI device in that whilst
there is a real 64b PCI BAR1 (comprising region 2 & region 3) on the
device, it is not used to access device memory once the faster
chip-to-chip interconnect is initialized (occurs at the time of host
system boot). The device memory is accessed instead using the chip-to-chip
interconnect that is exposed as a contiguous physically addressable
region on the host. This device memory aperture can be obtained from host
ACPI table using device_property_read_u64(), according to the FW
specification. Since the device memory is cache coherent with the CPU,
it can be mmap into the user VMA with a cacheable mapping using
remap_pfn_range() and used like a regular RAM. The device memory
is not added to the host kernel, but mapped directly as this reduces
memory wastage due to struct pages.

There is also a requirement of a minimum reserved 1G uncached region
(termed as resmem) to support the Multi-Instance GPU (MIG) feature [1].
This is to work around a HW defect. Based on [2], the requisite properties
(uncached, unaligned access) can be achieved through a VM mapping (S1)
of NORMAL_NC and host (S2) mapping with MemAttr[2:0]=0b101. To provide
a different non-cached property to the reserved 1G region, it needs to
be carved out from the device memory and mapped as a separate region
in Qemu VMA with pgprot_writecombine(). pgprot_writecombine() sets the
Qemu VMA page properties (pgprot) as NORMAL_NC.

Provide a VFIO PCI variant driver that adapts the unique device memory
representation into a more standard PCI representation facing userspace.

The variant driver exposes these two regions - the non-cached reserved
(resmem) and the cached rest of the device memory (termed as usemem) as
separate VFIO 64b BAR regions. This is divergent from the baremetal
approach, where the device memory is exposed as a device memory region.
The decision for a different approach was taken in view of the fact that
it would necessiate additional code in Qemu to discover and insert those
regions in the VM IPA, along with the additional VM ACPI DSDT changes to
communicate the device memory region IPA to the VM workloads. Moreover,
this behavior would have to be added to a variety of emulators (beyond
top of tree Qemu) out there desiring grace hopper support.

Since the device implements 64-bit BAR0, the VFIO PCI variant driver
maps the uncached carved out region to the next available PCI BAR (i.e.
comprising of region 2 and 3). The cached device memory aperture is
assigned BAR region 4 and 5. Qemu will then naturally generate a PCI
device in the VM with the uncached aperture reported as BAR2 region,
the cacheable as BAR4. The variant driver provides emulation for these
fake BARs' PCI config space offset registers.

The hardware ensures that the system does not crash when the memory
is accessed with the memory enable turned off. It synthesis ~0 reads
and dropped writes on such access. So there is no need to support the
disablement/enablement of BAR through PCI_COMMAND config space register.

The memory layout on the host looks like the following:
               devmem (memlength)
|--------------------------------------------------|
|-------------cached------------------------|--NC--|
|                                           |
usemem.memphys                              resmem.memphys

PCI BARs need to be aligned to the power-of-2, but the actual memory on the
device may not. A read or write access to the physical address from the
last device PFN up to the next power-of-2 aligned physical address
results in reading ~0 and dropped writes. Note that the GPU device
driver [6] is capable of knowing the exact device memory size through
separate means. The device memory size is primarily kept in the system
ACPI tables for use by the VFIO PCI variant module.

Note that the usemem memory is added by the VM Nvidia device driver [5]
to the VM kernel as memblocks. Hence make the usable memory size memblock
(MEMBLK_SIZE) aligned. This is a hardwired ABI value between the GPU FW and
VFIO driver. The VM device driver make use of the same value for its
calculation to determine USEMEM size.

Currently there is no provision in KVM for a S2 mapping with
MemAttr[2:0]=0b101, but there is an ongoing effort to provide the same [3].
As previously mentioned, resmem is mapped pgprot_writecombine(), that
sets the Qemu VMA page properties (pgprot) as NORMAL_NC. Using the
proposed changes in [3] and [4], KVM marks the region with
MemAttr[2:0]=0b101 in S2.

If the device memory properties are not present, the driver registers the
vfio-pci-core function pointers. Since there are no ACPI memory properties
generated for the VM, the variant driver inside the VM will only use
the vfio-pci-core ops and hence try to map the BARs as non cached. This
is not a problem as the CPUs have FWB enabled which blocks the VM
mapping's ability to override the cacheability set by the host mapping.

This goes along with a qemu series [6] to provides the necessary
implementation of the Grace Hopper Superchip firmware specification so
that the guest operating system can see the correct ACPI modeling for
the coherent GPU device. Verified with the CUDA workload in the VM.

[1] https://www.nvidia.com/en-in/technologies/multi-instance-gpu/
[2] section D8.5.5 of https://developer.arm.com/documentation/ddi0487/latest/
[3] https://lore.kernel.org/all/20240211174705.31992-1-ankita@nvidia.com/
[4] https://lore.kernel.org/all/20230907181459.18145-2-ankita@nvidia.com/
[5] https://github.com/NVIDIA/open-gpu-kernel-modules
[6] https://lore.kernel.org/all/20231203060245.31593-1-ankita@nvidia.com/

Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Yishai Hadas <yishaih@nvidia.com>
Reviewed-by: Zhi Wang <zhi.wang.linux@gmail.com>
Signed-off-by: Aniket Agashe <aniketa@nvidia.com>
Signed-off-by: Ankit Agrawal <ankita@nvidia.com>
Link: https://lore.kernel.org/r/20240220115055.23546-4-ankita@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2024-02-22 12:23:37 -07:00
Alex Williamson
05f3a0bd09 MAINTAINERS: Re-alphabetize VFIO
The vfio-pci virtio variant entry slipped in out of order.

Link: https://lore.kernel.org/r/20240205235427.2103714-1-alex.williamson@redhat.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2024-02-22 12:18:58 -07:00
Linus Torvalds
6714ebb922 Including fixes from bpf and netfilter.
Current release - regressions:
 
   - af_unix: fix another unix GC hangup
 
 Previous releases - regressions:
 
   - core: fix a possible AF_UNIX deadlock
 
   - bpf: fix NULL pointer dereference in sk_psock_verdict_data_ready()
 
   - netfilter: nft_flow_offload: release dst in case direct xmit path is used
 
   - bridge: switchdev: ensure MDB events are delivered exactly once
 
   - l2tp: pass correct message length to ip6_append_data
 
   - dccp/tcp: unhash sk from ehash for tb2 alloc failure after check_estalblished()
 
   - tls: fixes for record type handling with PEEK
 
   - devlink: fix possible use-after-free and memory leaks in devlink_init()
 
 Previous releases - always broken:
 
   - bpf: fix an oops when attempting to read the vsyscall
   	 page through bpf_probe_read_kernel
 
   - sched: act_mirred: use the backlog for mirred ingress
 
   - netfilter: nft_flow_offload: fix dst refcount underflow
 
   - ipv6: sr: fix possible use-after-free and null-ptr-deref
 
   - mptcp: fix several data races
 
   - phonet: take correct lock to peek at the RX queue
 
 Misc:
 
   - handful of fixes and reliability improvements for selftests
 
 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.8.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from bpf and netfilter.

  Current release - regressions:

   - af_unix: fix another unix GC hangup

  Previous releases - regressions:

   - core: fix a possible AF_UNIX deadlock

   - bpf: fix NULL pointer dereference in sk_psock_verdict_data_ready()

   - netfilter: nft_flow_offload: release dst in case direct xmit path
     is used

   - bridge: switchdev: ensure MDB events are delivered exactly once

   - l2tp: pass correct message length to ip6_append_data

   - dccp/tcp: unhash sk from ehash for tb2 alloc failure after
     check_estalblished()

   - tls: fixes for record type handling with PEEK

   - devlink: fix possible use-after-free and memory leaks in
     devlink_init()

  Previous releases - always broken:

   - bpf: fix an oops when attempting to read the vsyscall page through
     bpf_probe_read_kernel

   - sched: act_mirred: use the backlog for mirred ingress

   - netfilter: nft_flow_offload: fix dst refcount underflow

   - ipv6: sr: fix possible use-after-free and null-ptr-deref

   - mptcp: fix several data races

   - phonet: take correct lock to peek at the RX queue

  Misc:

   - handful of fixes and reliability improvements for selftests"

* tag 'net-6.8.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (72 commits)
  l2tp: pass correct message length to ip6_append_data
  net: phy: realtek: Fix rtl8211f_config_init() for RTL8211F(D)(I)-VD-CG PHY
  selftests: ioam: refactoring to align with the fix
  Fix write to cloned skb in ipv6_hop_ioam()
  phonet/pep: fix racy skb_queue_empty() use
  phonet: take correct lock to peek at the RX queue
  net: sparx5: Add spinlock for frame transmission from CPU
  net/sched: flower: Add lock protection when remove filter handle
  devlink: fix port dump cmd type
  net: stmmac: Fix EST offset for dwmac 5.10
  tools: ynl: don't leak mcast_groups on init error
  tools: ynl: make sure we always pass yarg to mnl_cb_run
  net: mctp: put sock on tag allocation failure
  netfilter: nf_tables: use kzalloc for hook allocation
  netfilter: nf_tables: register hooks last when adding new chain/flowtable
  netfilter: nft_flow_offload: release dst in case direct xmit path is used
  netfilter: nft_flow_offload: reset dst in route object after setting up flow
  netfilter: nf_tables: set dormant flag on hook register failure
  selftests: tls: add test for peeking past a record of a different type
  selftests: tls: add test for merging of same-type control messages
  ...
2024-02-22 09:57:58 -08:00
Anna-Maria Behnsen
36e40df35d timer_migration: Add tracepoints
The timer pull logic needs proper debugging aids. Add tracepoints so the
hierarchical idle machinery can be diagnosed.

Signed-off-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240222103403.31923-1-anna-maria@linutronix.de
2024-02-22 17:52:32 +01:00
Krzysztof Kozlowski
9690b9de81 MAINTAINERS: samsung: gs101: match patches touching Google Tensor SoC
Maintainers of Google Tensor SoC should be aware of all driver patches
having that name.

Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Link: https://lore.kernel.org/r/20240219125453.103692-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
2024-02-22 09:53:09 +01:00
Sekhar Nori
44042fb0d6 MAINTAINERS: drop Sekhar Nori
My TI e-mail address will become inactive soon. Drop it.
Add an entry to CREDITS file for work done on TI DaVinci
family SoCs.

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Acked-by: Nishanth Menon <nm@ti.com>
Link: https://lore.kernel.org/r/20240131093434.55652-1-nsekhar@ti.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2024-02-21 20:20:02 -08:00
SeongJae Park
bf667efc56 MAINTAINERS: Set the field name for subsystem profile section
Subsystem profile section entry identifier is not having its field name
that can be parsed by maintainers_include.py, unlike other sections
which have their own human-readable field names.  As a result, profile
sections on rendered rst file is having weird name, 'P:'.  Set the field
name as 'Subsystem Profile'.

Fixes: 4699c504e603 ("Maintainer Handbook: Maintainer Entry Profile")
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20240216201902.10095-1-sj@kernel.org
2024-02-21 13:44:21 -07:00
Konstantin Ryabitsev
27103dddc2 Documentation: update mailing list addresses
The mailman2 server running on lists.linuxfoundation.org will be shut
down in very imminent future. Update all instances of obsolete list
addresses throughout the tree with their new destinations.

Signed-off-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20240214-lf-org-list-migration-v1-1-ef1eab4b1543@linuxfoundation.org
2024-02-21 13:44:21 -07:00
Jeff Johnson
1b7d9ab3e6 MAINTAINERS: wifi: Add N: ath1*k entries to match .yaml files
In [1] it was observed that the ath12k maintainers were not added to
the review of a new ath12k YAML file. Bartosz suggested "adding an N:
ath12k entry to MAINTAINERS" to prevent this in the future. In the
process it was noticed that one of the ath11k YAML files was also not
explicitly referenced, so add N: entries to ath10k, ath11k, and
ath12k, and remove the explicit F: entries.

Link: https://lore.kernel.org/linux-wireless/20240216203215.40870-7-brgl@bgdev.pl/ [1]
Suggested-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240217-update-maintainer-v1-2-1426cf7a8bb1@quicinc.com
2024-02-21 20:46:49 +02:00
Jeff Johnson
27dc4c6ee5 MAINTAINERS: wifi: update Jeff Johnson e-mail address
I now have a @kernel.org e-mail address, so use that for my
maintenance activities.

Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240217-update-maintainer-v1-1-1426cf7a8bb1@quicinc.com
2024-02-21 20:46:49 +02:00
Biju Das
583f2bdc8a
MAINTAINERS: Create entry for Renesas RZ DRM drivers
Create entry for Renesas RZ DRM drivers and add my self as a maintainer.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Link: https://lore.kernel.org/r/20240218164840.57662-6-biju.das.jz@bp.renesas.com
Signed-off-by: Maxime Ripard <mripard@kernel.org>
2024-02-21 17:21:23 +01:00
Biju Das
bf7e1dc79a
MAINTAINERS: Update entries for Renesas DRM drivers
The rcar-du has never been maintained in drm-misc. So exclude only
this driver from drm-misc. Also, add the tree entry for sh_mobile.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> # shmob_drm
Link: https://lore.kernel.org/r/20240218164840.57662-5-biju.das.jz@bp.renesas.com
Signed-off-by: Maxime Ripard <mripard@kernel.org>
2024-02-21 17:21:22 +01:00
Simon Horman
14dec56fdd MAINTAINERS: Add framer headers to NETWORKING [GENERAL]
The cited commit [1] added framer support under drivers/net/wan,
which is covered by NETWORKING [GENERAL]. And it is implied
that framer-provider.h and framer.h, which were also added
buy the same patch, are also maintained as part of NETWORKING [GENERAL].

Make this explicit by adding these files to the corresponding
section in MAINTAINERS.

[1] 82c944d05b1a ("net: wan: Add framer framework support")

Signed-off-by: Simon Horman <horms@kernel.org>
Reviewed-by: Herve Codina <herve.codina@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-21 12:42:20 +00:00
Krzysztof Kozlowski
cee544a40e reset: gpio: Add GPIO-based reset controller
Add a simple driver to control GPIO-based resets using the reset
controller API for the cases when the GPIOs are shared and reset should
be coordinated.  The driver is expected to be used by reset core
framework for ad-hoc reset controllers.

Cc: Bartosz Golaszewski <brgl@bgdev.pl>
Cc: Chris Packham <chris.packham@alliedtelesis.co.nz>
Cc: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240129115216.96479-4-krzysztof.kozlowski@linaro.org
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2024-02-21 11:53:25 +01:00
Nícolas F. R. A. Prado
4a679c5afc selftests: Add test to verify power supply properties
Add a kselftest that verifies power supply properties from sysfs and
uevent. It checks whether they are present, readable and return valid
values.

This initial set of properties is not comprehensive, but rather the ones
that I was able to validate locally.

Co-developed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2024-02-20 15:53:33 -07:00
Shakeel Butt
379c5aaa14 MAINTAINERS: mailmap: update Shakeel's email address
Moving to linux.dev based email for kernel work.

Link: https://lkml.kernel.org/r/20240219205050.887810-1-shakeel.butt@linux.dev
Signed-off-by: Shakeel Butt <shakeel.butt@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-02-20 14:20:50 -08:00
Mike Snitzer
f36b1d3ba5 dm vdo: use a proper Makefile for dm-vdo
Requires moving dm-vdo-target.c into drivers/md/dm-vdo/

This change adds a proper drivers/md/dm-vdo/Makefile and eliminates
the abnormal use of patsubst in drivers/md/Makefile -- which was the
cause of at least one build failure that was reported by the upstream
build bot.

Also, split out VDO's drivers/md/dm-vdo/Kconfig and include it from
drivers/md/Kconfig

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-02-20 13:43:17 -05:00
Matthew Sakai
77bc133191 dm vdo: add MAINTAINERS file entry
Signed-off-by: Matthew Sakai <msakai@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2024-02-20 13:43:16 -05:00
Yazen Ghannam
6f15e617cc RAS: Introduce a FRU memory poison manager
Memory errors are an expected occurrence on systems with high memory
density. Generally, errors within a small number of unique physical
locations are acceptable, based on manufacturer and/or admin policy.
During run time, memory with errors may be retired so it is no longer
used by the system. This is done in mm through page poisoning, and the
effect will remain until the system is restarted.

If a memory location is consistently faulty, then the same run time
error handling may occur in the next reboot cycle, leading to
terminating jobs due to that already known bad memory. This could be
prevented if information from the previous boot was not lost.

Some add-in cards with driver-managed memory have on-board persistent
storage. Their driver saves memory error information to the persistent
storage during run time. The information is then restored after reset,
and known bad memory will be retired before the hardware is used.
A running log of bad memory locations is kept across multiple resets.

A similar solution is desirable for CPUs. However, this solution should
leverage industry-standard components as much as possible, rather than
a bespoke platform driver.

Two components are needed: a record format and a persistent storage
interface.

Implement a new module to manage the record formats on persistent
storage. Use the requirements for an AMD MI300-based system to start.
Vendor- and platform-specific details can be abstracted later as needed.

  [ bp: Massage commit message and code, squash 30-ish more fixes from
    Yazen and me. ]

Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Co-developed-by: <naveenkrishna.chatradhi@amd.com>
Signed-off-by: <naveenkrishna.chatradhi@amd.com>
Co-developed-by: <muralidhara.mk@amd.com>
Signed-off-by: <muralidhara.mk@amd.com>
Tested-by: <sathyapriya.k@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20240214033516.1344948-3-yazen.ghannam@amd.com
2024-02-20 18:56:15 +01:00
Serge Semin
e34813c2da MAINTAINERS: Add maintainer for MIPS Baikal-T1 platform code
Add myself as a maintainer of the MIPS Baikal-T1 platform-specific
drivers. The arch-code hasn't been submitted yet, but will be soon enough.
Until then it's better to have the already available drivers marked as
maintained.

Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2024-02-20 13:36:34 +01:00
Gregory CLEMENT
f34158edd2 MAINTAINERS: Add entry for Mobileye MIPS SoCs
Add Vlad, Théo and myself as co-maintainers for the Mobileye MIPS
SoCs.

Signed-off-by: Vladimir Kondratiev <vladimir.kondratiev@mobileye.com>
Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2024-02-20 13:36:34 +01:00