vfio/cdx: add support for CDX bus

vfio-cdx driver enables IOCTLs for user space to query
MMIO regions for CDX devices and mmap them. This change
also adds support for reset of CDX devices. With VFIO

vfio/cdx: add support for CDX bus

vfio-cdx driver enables IOCTLs for user space to query
MMIO regions for CDX devices and mmap them. This change
also adds support for reset of CDX devices. With VFIO
enabled on CDX devices, user-space applications can also
exercise DMA securely via IOMMU on these devices.

This change adds the VFIO CDX driver and enables the following
ioctls for CDX devices:
- VFIO_DEVICE_GET_INFO:
- VFIO_DEVICE_GET_REGION_INFO
- VFIO_DEVICE_RESET

Signed-off-by: Nipun Gupta <nipun.gupta@amd.com>
Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com>
Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com>
Link: https://lore.kernel.org/r/20230531124557.11009-1-nipun.gupta@amd.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

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docs: update some straggling Documentation/arm references

The Arm documentation has moved to Documentation/arch/arm; update the
last remaining references to match.

Cc: Dmitry Torokhov <dmitry.torok

docs: update some straggling Documentation/arm references

The Arm documentation has moved to Documentation/arch/arm; update the
last remaining references to match.

Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: Samuel Holland <samuel@sholland.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> # for pwm
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

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MAINTAINERS: Add source tree entry for kunit

Patches for kunit are managed in kunit and kunit-fixes branches of
linux-kselftest tree before merged into the mainline. However, the
MAINTAINERS sectio

MAINTAINERS: Add source tree entry for kunit

Patches for kunit are managed in kunit and kunit-fixes branches of
linux-kselftest tree before merged into the mainline. However, the
MAINTAINERS section for kunit is not having the entries for the
branches. Add the entries.

Signed-off-by: SeongJae Park <sj@kernel.org>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

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MAINTAINERS: repair pattern in ARM/Amlogic Meson SoC CLOCK FRAMEWORK

Commit e6c6ddb397e2 ("dt-bindings: clock: meson: add A1 PLL clock
controller bindings") adds a file entry with pattern
"include/d

MAINTAINERS: repair pattern in ARM/Amlogic Meson SoC CLOCK FRAMEWORK

Commit e6c6ddb397e2 ("dt-bindings: clock: meson: add A1 PLL clock
controller bindings") adds a file entry with pattern
"include/dt-bindings/clock/a1*" to the ARM/Amlogic Meson SoC CLOCK
FRAMEWORK section. However, all header files added in the patch series to
add Amlogic A1 clock controller drivers carry the prefix "amlogic,a1", and
there are not header files matching "a1*".

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

Adjust the pattern of this file entry to match the headers actually added.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20230614084212.1359-1-lukas.bulwahn@gmail.com
Fixes: e6c6ddb397e2 ("dt-bindings: clock: meson: add A1 PLL clock controller bindings")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>

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MAINTAINERS: USB: add uapi header files to USB SUBSYSTEM entry

For some reason the include/uapi/linux/usb/ directory is missing in the
USB SUBSYSTEM entry, so get_maintainer will not know to cc: the

MAINTAINERS: USB: add uapi header files to USB SUBSYSTEM entry

For some reason the include/uapi/linux/usb/ directory is missing in the
USB SUBSYSTEM entry, so get_maintainer will not know to cc: the proper
mailing lists. Fix this up by adding an entry for this directory.

Message-ID: <20230615094306.2072827-2-gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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MAINTAINERS: add reviewers for SMC Sockets

adding three people from Alibaba as reviewers for SMC.
They are currently working on improving SMC on other architectures than
s390 and help with reviewing

MAINTAINERS: add reviewers for SMC Sockets

adding three people from Alibaba as reviewers for SMC.
They are currently working on improving SMC on other architectures than
s390 and help with reviewing patches on top.

Thank you D. Wythe, Tony Lu and Wen Gu for your contributions and
collaboration and welcome on board as reviewers!

Reviewed-by: Wenjia Zhang <wenjia@linux.ibm.com>
Signed-off-by: Jan Karcher <jaka@linux.ibm.com>
Acked-by: Tony Lu <tonylu@linux.alibaba.com>
Acked-by: Wen Gu <guwen@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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gpio: tps65219: add GPIO support for TPS65219 PMIC

Add support for TPS65219 PMICs GPIO interface.

3 GPIO pins:
- GPIO0 only is IO but input mode reserved for MULTI_DEVICE_ENABLE usage.
- GPIO1 and

gpio: tps65219: add GPIO support for TPS65219 PMIC

Add support for TPS65219 PMICs GPIO interface.

3 GPIO pins:
- GPIO0 only is IO but input mode reserved for MULTI_DEVICE_ENABLE usage.
- GPIO1 and GPIO2 are Output only and referred as GPO1 and GPO2 in spec.

GPIO0 is statically configured as input or output prior to Linux boot.
it is used for MULTI_DEVICE_ENABLE function.
This setting is statically configured by NVM.
GPIO0 can't be used as a generic GPIO (specification Table 8-34).
It's either a GPO when MULTI_DEVICE_EN=0 or a GPI when MULTI_DEVICE_EN=1.

Datasheet describes specific usage for non standard GPIO.

Datasheet: https://www.ti.com/lit/ds/symlink/tps65219.pdf
Co-developed-by: Jonathan Cormier <jcormier@criticallink.com>
Signed-off-by: Jonathan Cormier <jcormier@criticallink.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

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MAINTAINERS: add Cadence USBHS driver entry

Patch adds entry for USBHS (CDNS2) driver into MAINTARNERS file

Signed-off-by: Pawel Laszczak <pawell@cadence.com>
Message-ID: <20230602102644.77470-5-pa

MAINTAINERS: add Cadence USBHS driver entry

Patch adds entry for USBHS (CDNS2) driver into MAINTARNERS file

Signed-off-by: Pawel Laszczak <pawell@cadence.com>
Message-ID: <20230602102644.77470-5-pawell@cadence.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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MAINTAINERS: Add CPU HOTPLUG entry

Document the status quo and add myself and Peter as CPU hotplug
maintainers.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel)

MAINTAINERS: Add CPU HOTPLUG entry

Document the status quo and add myself and Peter as CPU hotplug
maintainers.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/87o7ll6ogo.ffs@tglx

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MAINTAINERS: add documentation file for Microchip EIC section

Add documentation file to Microchip EIC section.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel

MAINTAINERS: add documentation file for Microchip EIC section

Add documentation file to Microchip EIC section.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20230523070637.224476-3-claudiu.beznea@microchip.com
Signed-off-by: Rob Herring <robh@kernel.org>

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lib/string_helpers: Split out string_choices.h

Some users may only need the string choice APIs. Split
the respective header, i.e. string_choices.h. Include
it in the string_helpers.h for backward co

lib/string_helpers: Split out string_choices.h

Some users may only need the string choice APIs. Split
the respective header, i.e. string_choices.h. Include
it in the string_helpers.h for backward compatibility.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

show more ...

lib/string_helpers: Add missing header files to MAINTAINERS database

The header files string.h and string_helpers.h are missing in
the MAINTAINERS. Add them.

Signed-off-by: Andy Shevchenko <andriy.

lib/string_helpers: Add missing header files to MAINTAINERS database

The header files string.h and string_helpers.h are missing in
the MAINTAINERS. Add them.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

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NFSD: Add "official" reviewers for this subsystem

At LFS 2023, it was suggested we should publicly document the name and
email of reviewers who new contributors can trust. This also gives them
some

NFSD: Add "official" reviewers for this subsystem

At LFS 2023, it was suggested we should publicly document the name and
email of reviewers who new contributors can trust. This also gives them
some recognition for their work as reviewers.

Acked-by: Tom Talpey <tom@talpey.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

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MAINTAINERS: coresight: Add James Clark as Reviewer

James has made significant contributions to the CoreSight subsystem
both with code and reviews. Add James to the Reviewer for the subsystem.

Cc:

MAINTAINERS: coresight: Add James Clark as Reviewer

James has made significant contributions to the CoreSight subsystem
both with code and reviews. Add James to the Reviewer for the subsystem.

Cc: James Clark <james.clark@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Acked-by: James Clark <james.clark@arm.com>
Link: https://lore.kernel.org/r/20230608152045.112349-1-suzuki.poulose@arm.com

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EDAC/npcm: Add NPCM memory controller driver

Add driver for memory controller present on Nuvoton NPCM SoCs. The
memory controller supports single bit error correction and double bit
error detection.

EDAC/npcm: Add NPCM memory controller driver

Add driver for memory controller present on Nuvoton NPCM SoCs. The
memory controller supports single bit error correction and double bit
error detection.

Signed-off-by: Marvin Lin <milkfafa@gmail.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20230111093245.318745-4-milkfafa@gmail.com

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net: phy: add driver for MediaTek SoC built-in GE PHYs

Some of MediaTek's Filogic SoCs come with built-in gigabit Ethernet
PHYs which require calibration data from the SoC's efuse.
Despite the simil

net: phy: add driver for MediaTek SoC built-in GE PHYs

Some of MediaTek's Filogic SoCs come with built-in gigabit Ethernet
PHYs which require calibration data from the SoC's efuse.
Despite the similar design the driver doesn't share any code with the
existing mediatek-ge.c.
Add support for such PHYs by introducing a new driver with basic
support for MediaTek SoCs MT7981 and MT7988 built-in 1GE PHYs.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

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dt-bindings: net: xlnx,axi-ethernet: convert bindings document to yaml

Convert the bindings document for Xilinx AXI Ethernet Subsystem
from txt to yaml. No changes to existing binding description.

dt-bindings: net: xlnx,axi-ethernet: convert bindings document to yaml

Convert the bindings document for Xilinx AXI Ethernet Subsystem
from txt to yaml. No changes to existing binding description.

Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
Signed-off-by: Sarath Babu Naidu Gaddam <sarath.babu.naidu.gaddam@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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selftests: add selftests for cachestat

Test cachestat on a newly created file, /dev/ files, /proc/ files and a
directory. Also test on a shmem file (which can also be tested with
huge pages since t

selftests: add selftests for cachestat

Test cachestat on a newly created file, /dev/ files, /proc/ files and a
directory. Also test on a shmem file (which can also be tested with
huge pages since tmpfs supports huge pages).

[colin.i.king@gmail.com: fix spelling mistake "trucate" -> "truncate"]
Link: https://lkml.kernel.org/r/20230505110855.2493457-1-colin.i.king@gmail.com
[mpe@ellerman.id.au: avoid excessive stack allocation]
Link: https://lkml.kernel.org/r/877ctfa6yv.fsf@mail.lhotse
Link: https://lkml.kernel.org/r/20230503013608.2431726-4-nphamcs@gmail.com
Signed-off-by: Nhat Pham <nphamcs@gmail.com>
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Brian Foster <bfoster@redhat.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Colin Ian King <colin.i.king@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

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HID: nvidia-shield: Initial driver implementation with Thunderstrike support

Supports the Thunderstrike (SHIELD 2017) controller. Implements support for
the Thunderstrike HOSTCMD firmware interface.

HID: nvidia-shield: Initial driver implementation with Thunderstrike support

Supports the Thunderstrike (SHIELD 2017) controller. Implements support for
the Thunderstrike HOSTCMD firmware interface. Adds sysfs attributes about a
SHIELD device and introduces haptics support for controllers.

Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

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KVM: PPC: Update MAINTAINERS

Michael is merging KVM PPC patches via the powerpc tree and KVM topic
branches. He doesn't necessarily have time to be across all of KVM so
is reluctant to call himself

KVM: PPC: Update MAINTAINERS

Michael is merging KVM PPC patches via the powerpc tree and KVM topic
branches. He doesn't necessarily have time to be across all of KVM so
is reluctant to call himself maintainer, but for the mechanics of how
patches flow upstream, it is maintained and does make sense to have
some contact people in MAINTAINERS.

So add Michael Ellerman as KVM PPC maintainer and myself as reviewer.
Split out the subarchs that don't get so much attention.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230608024504.58189-1-npiggin@gmail.com

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powerpc: Mark powermac as orphan in MAINTAINERS

Ben no longer has time to do any maintenance of the powermac code. Mark
it as orphan.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: http

powerpc: Mark powermac as orphan in MAINTAINERS

Ben no longer has time to do any maintenance of the powermac code. Mark
it as orphan.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230517074819.52546-1-mpe@ellerman.id.au

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MAINTAINERS: Exclude m68k-only drivers from powerpc entry

The powerpc section has a "F:" entry for drivers/macintosh, matching all
files in or below drivers/macintosh. That is correct for the most p

MAINTAINERS: Exclude m68k-only drivers from powerpc entry

The powerpc section has a "F:" entry for drivers/macintosh, matching all
files in or below drivers/macintosh. That is correct for the most part,
but there are a couple of m68k-only drivers in the directory, so exclude
those.

Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230531125023.1121060-1-mpe@ellerman.id.au

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dt-bindings: pinctrl: Drop k3

For convenience (less code duplication), the pin controller pin
configuration register values were defined in the bindings header.
These are not some IDs or other abstr

dt-bindings: pinctrl: Drop k3

For convenience (less code duplication), the pin controller pin
configuration register values were defined in the bindings header.
These are not some IDs or other abstraction layer but raw numbers used
in the registers.

These constants do not fit the purpose of bindings. They do not
provide any abstraction, any hardware and driver independent ID. In
fact, the Linux pinctrl-single driver actually do not use the bindings
header at all.

Commit f2de003e1426 ("dt-bindings: pinctrl: k3: Deprecate header with
register constants") already moved users to the local header, so, drop
the binding header. See background discussion in [1].

While at it, clean up the MAINTAINERS file which is the only reference
left.

[1]: https://lore.kernel.org/linux-arm-kernel/71c7feff-4189-f12f-7353-bce41a61119d@linaro.org/

Suggested-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230601173831.982429-1-nm@ti.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

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MAINTAINERS: move labeled networking to "supported"

My current employer, Microsoft, cares very much about the development
and maintenance of the upstream Linux Kernel so we can consider
labeled netw

MAINTAINERS: move labeled networking to "supported"

My current employer, Microsoft, cares very much about the development
and maintenance of the upstream Linux Kernel so we can consider
labeled networking to be "supported" according to the definition in
MAINTAINERS:

S: *Status*, one of the following:
Supported: Someone is actually paid to look after this.
Maintained: Someone actually looks after it.
...

Signed-off-by: Paul Moore <paul@paul-moore.com>

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MAINTAINERS: Add entries for Renesas RZ/V2M I2C driver

Add the MAINTAINERS entries for the Renesas RZ/V2M I2C driver.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Acked-by: Fabrizio Castro

MAINTAINERS: Add entries for Renesas RZ/V2M I2C driver

Add the MAINTAINERS entries for the Renesas RZ/V2M I2C driver.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Acked-by: Fabrizio Castro <fabrizio.castro.jz@renesas.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

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