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It's fine for these properties to be absent, as the driver doesn't fail
without them and functions with settings inherited from the reset/previous
stage bootloader state.
Fixes: 6c463222a21d ("dt-bindings: power: supply: pm8941-coincell: Convert to DT schema format")
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Add a specific compatible for the coincell charger present on PM8998.
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
DT_SCHEMA_FILES used to allow specifying a space separated list of file
paths, but the introduction of partial matches support broke this
feature:
$ make dtbs_check DT_SCHEMA_FILES="path/to/schema1.yaml path/to/schema2.yaml"
[...]
LINT Documentation/devicetree/bindings
usage: yamllint [-h] [-] [-c CONFIG_FILE | -d CONFIG_DATA] [--list-files] [...]
[-v]
[FILE_OR_DIR ...]
yamllint: error: one of the arguments FILE_OR_DIR - is required
[...]
Restore the lost functionality by preparing a grep filter that is able
to handle multiple search patterns.
Additionally, as suggested by Rob, use ':' instead of ' ' as the
patterns separator char. Hence, the command above becomes:
$ make dtbs_check DT_SCHEMA_FILES="path/to/schema1.yaml:path/to/schema2.yaml"
Fixes: 309d955985ee ("dt-bindings: kbuild: Support partial matches with DT_SCHEMA_FILES")
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Link: https://lore.kernel.org/r/20230209193735.795288-1-cristian.ciocaltea@collabora.com
Signed-off-by: Rob Herring <robh@kernel.org>
Correct spelling problems for Documentation/i2c/ as reported
by codespell.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Convert i2c-st.txt into st,sti-i2c.yaml for the i2c-st driver.
Signed-off-by: Alain Volmat <avolmat@me.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Qualcomm G-Link RPM edge bindings do not allow and do not use mbox-names
property.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230208101545.45711-4-krzysztof.kozlowski@linaro.org
Merge power management utilities and documentation updates for 6.3-rc1:
- Modify some power management utilities to use the canonical ftrace
path (Ross Zwisler).
- Correct spelling problems for Documentation/power/ as reported by
codespell (Randy Dunlap).
* pm-tools:
PM: tools: use canonical ftrace path
* pm-docs:
Documentation: power: correct spelling
Merge updates of the powercap framework, generic PM domains, Energy
Model and operating performance points for 6.3-rc1:
- Fix possible name leak in powercap_register_zone() (Yang Yingliang).
- Add Meteor Lake and Emerald Rapids support to the intel_rapl power
capping driver (Zhang Rui).
- Modify the idle_inject power capping facility to support 100% idle
injection (Srinivas Pandruvada).
- Fix large time windows handling in the intel_rapl power capping
driver (Zhang Rui).
- Fix memory leaks with using debugfs_lookup() in the generic PM
domains and Energy Model code (Greg Kroah-Hartman).
- Add missing 'cache-unified' property in example for kryo OPP bindings
(Rob Herring).
- Fix error checking in opp_migrate_dentry() (Qi Zheng).
- Remove "select SRCU" (Paul E. McKenney).
- Let qcom,opp-fuse-level be a 2-long array for qcom SoCs (Konrad
Dybcio).
* powercap:
powercap: intel_rapl: Fix handling for large time window
powercap: idle_inject: Support 100% idle injection
powercap: intel_rapl: add support for Emerald Rapids
powercap: intel_rapl: add support for Meteor Lake
powercap: fix possible name leak in powercap_register_zone()
* pm-domains:
PM: domains: fix memory leak with using debugfs_lookup()
* pm-em:
PM: EM: fix memory leak with using debugfs_lookup()
* pm-opp:
OPP: fix error checking in opp_migrate_dentry()
dt-bindings: opp: v2-qcom-level: Let qcom,opp-fuse-level be a 2-long array
drivers/opp: Remove "select SRCU"
dt-bindings: opp: opp-v2-kryo-cpu: Add missing 'cache-unified' property in example
28th bit of fixed supply sink PDO represents higher capability.
When this bit is set, the sink device needs more than vsafe5V
(eg: 12 V) to provide full functionality. This patch adds
this higher capability sysfs interface for sink PDO.
28th bit of fixed supply source PDO represents usb_suspend_supported
attribute. This usb_suspend_supported sysfs is already exposed for
source PDOs. This patch adds 'source-capabilities' in
usb_suspend_supported sysfs documentation for additional clarity.
Signed-off-by: Saranya Gopal <saranya.gopal@intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20230214114543.205103-2-saranya.gopal@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* The last part of the cmpxchg patches
* A few fixes
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Merge tag 'kvm-s390-next-6.3-1' of https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD
* Two more V!=R patches
* The last part of the cmpxchg patches
* A few fixes
Stephen Rothwell reported htmldocs warning when merging bpf-next tree,
which was the same warning as reported by kernel test robot:
Documentation/bpf/graph_ds_impl.rst:62: ERROR: Error in "code-block" directive:
maximum 1 argument(s) allowed, 12 supplied.
The error is due to Sphinx confuses node_data struct declaration with
code-block directive option.
Fix the warning by separating the code-block marker with node_data struct
declaration.
Link: https://lore.kernel.org/linux-next/20230215144505.4751d823@canb.auug.org.au/
Link: https://lore.kernel.org/linux-doc/202302151123.wUE5FYFx-lkp@intel.com/
Fixes: c31315c3aa0929 ("bpf, documentation: Add graph documentation for non-owning refs")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Link: https://lore.kernel.org/r/20230215123253.41552-3-bagasdotme@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Document support for the Thermal Sensor/Chip Internal Voltage
Monitor/Core Voltage Monitor (THS/CIVM/CVM) on the Renesas R-Car V4H
(R8A779G0) SoC.
Unlike most other R-Car Gen3 and Gen4 SoCs, it has 4 instead of 3
sensors, so increase the maximum number of reg tuples.
Just like other R-Car Gen4 SoCs, interrupts are not routed to the
INTC-AP but to the ECM.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/11f740522ec479011cc8eef6bb450603be394def.1675958665.git.geert+renesas@glider.be
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Add LVTS thermal controllers dt-binding definition for mt8192 and mt8195.
Signed-off-by: Balsam CHIHI <bchihi@baylibre.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230209105628.50294-3-bchihi@baylibre.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Merge thermal control changes related to Intel platforms for 6.3-rc1:
- Rework ACPI helper functions for thermal control to retrieve a trip
point temperature instead of initializing a trip point objetc (Rafael
Wysocki).
- Clean up and improve the int340x thermal driver ((Rafael Wysocki).
- Simplify and clean up the intel_pch thermal driver ((Rafael Wysocki).
- Fix the Intel powerclamp thermal driver and make it use the common
idle injection framework (Srinivas Pandruvada).
- Add two module parameters, cpumask and max_idle, to the Intel powerclamp
thermal driver to allow it to affect only a specific subset of CPUs
instead of all of them (Srinivas Pandruvada).
- Make the Intel quark_dts thermal driver Use generic trip point
objects instead of its own trip point representation (Daniel
Lezcano).
- Add toctree entry for thermal documents and fix two issues in the
Intel powerclamp driver documentation (Bagas Sanjaya).
* thermal-intel: (25 commits)
Documentation: powerclamp: Fix numbered lists formatting
Documentation: powerclamp: Escape wildcard in cpumask description
Documentation: admin-guide: Add toctree entry for thermal docs
thermal: intel: powerclamp: Add two module parameters
Documentation: admin-guide: Move intel_powerclamp documentation
thermal: intel: powerclamp: Fix duration module parameter
thermal: intel: powerclamp: Return last requested state as cur_state
thermal: intel: quark_dts: Use generic trip points
thermal: intel: powerclamp: Use powercap idle-inject feature
powercap: idle_inject: Add update callback
powercap: idle_inject: Export symbols
thermal: intel: powerclamp: Fix cur_state for multi package system
thermal: intel: intel_pch: Drop struct board_info
thermal: intel: intel_pch: Rename board ID symbols
thermal: intel: intel_pch: Fold suspend and resume routines into their callers
thermal: intel: intel_pch: Fold two functions into their callers
thermal: intel: intel_pch: Eliminate device operations object
thermal: intel: intel_pch: Rename device operations callbacks
thermal: intel: intel_pch: Eliminate redundant return pointers
thermal: intel: intel_pch: Make pch_wpt_add_acpi_psv_trip() return int
...
The sysfs path for the NFS4 client identfier should start with
the path component of 'nfs' for the kset, and then the 'net'
path component for the netns object, followed by the
'nfs_client' path component for the NFS client kobject,
and ending with 'identifier' for the netns_client_id
kobj_attribute.
Fixes: a28faaddb2be ("Documentation: Add an explanation of NFSv4 client identifiers")
Link: https://bugzilla.redhat.com/show_bug.cgi?id=1801326
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
kernel test robot reported htmldocs warning:
Documentation/admin-guide/pm/amd-pstate.rst:343: WARNING: duplicate label admin-guide/pm/amd-pstate:user space interface in ``sysfs``, other instance in Documentation/admin-guide/pm/amd-pstate.rst
The documentation contains two sections with the same "User Space Interface
in ``sysfs``" title. The first one deals with per-policy sysfs and the
second one is about general attributes (currently only global attributes
are documented).
Disambiguate title text of both sections to fix the warning.
Link: https://lore.kernel.org/linux-doc/202302151041.0SWs1RHK-lkp@intel.com/
Fixes: b9e6a2d47b2565 ("Documentation: amd-pstate: introduce new global sysfs attributes")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Reviewed-by: Wyes Karny <wyes.karny@amd.com>
Acked-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Merge ACPI backlight driver changes, miscellaneous ACPI-related changes
and ACPI-related documentation updates for 6.3-rc1:
- Fix Lenovo Ideapad Z570 DMI match in the ACPI backlight driver (Hans
de Goede).
- Silence missing prototype warnings in some places in the ACPI-related
code (Ammar Faizi).
- Make kobj_type structures used in the ACPI code constant (Thomas
Weißschuh).
- Correct spelling in firmware-guide/ACPI (Randy Dunlap).
- Clarify the meaning of Explicit and Implicit in the _DSD GPIO
properties documentation (Andy Shevchenko).
* acpi-video:
ACPI: video: Fix Lenovo Ideapad Z570 DMI match
* acpi-misc:
ACPI: make kobj_type structures constant
ACPI: Silence missing prototype warnings
* acpi-docs:
Documentation: firmware-guide: gpio-properties: Clarify Explicit and Implicit
Documentation: firmware-guide/ACPI: correct spelling
The following warning:
Documentation/admin-guide/hw-vuln/cross-thread-rsb.rst:92: ERROR: Unexpected indentation.
was introduced by commit 493a2c2d23ca. Fix it by placing everything in
the same paragraph and also use a monospace font.
Fixes: 493a2c2d23ca ("Documentation/hw-vuln: Add documentation for Cross-Thread Return Predictions")
Reported-by: Stephen Rothwell <sfr@canb@auug.org.au>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Basic doc about Virtio on Linux and a short tutorial on Virtio drivers.
includes the following fixup:
virtio: fix virtio_config_ops kerneldocs
Fixes two warning messages when building htmldocs:
warning: duplicate section name 'Note'
warning: expecting prototype for virtio_config_ops().
Prototype was for vq_callback_t() instead
Message-Id: <20221010064359.1324353-2-ricardo.canuelo@collabora.com>
Signed-off-by: Ricardo Cañuelo <ricardo.canuelo@collabora.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20221220100035.2712449-1-ricardo.canuelo@collabora.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Commit 5b4e9a7a71ab ("net: ethtool: extend ringparam set/get APIs for rx_push")
added a new attr for configuring rx-push, right after tx-push.
Add it to the spec, the ring param operation is covered by
the otherwise sparse ethtool spec.
Reviewed-by: Shannon Nelson <shannon.nelson@amd.com>
Link: https://lore.kernel.org/r/20230214043246.230518-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Conor Dooley <conor@kernel.org> says:
From: Conor Dooley <conor.dooley@microchip.com>
Ever since RISC-V starting using generic arch topology code, the code
paths for cpu-capacity have been there but there's no binding defined to
actually convey the information. Defining the same property as used on
arm seems to be the only logical thing to do, so do it.
[Palmer: This is on top of the fix required to make it work, which
itself wasn't merged until late in the 6.2 cycle and thus pulls in
various other fixes.]
* b4-shazam-merge:
dt-bindings: riscv: add a capacity-dmips-mhz cpu property
dt-bindings: arm: move cpu-capacity to a shared loation
riscv: Move call to init_cpu_topology() to later initialization stage
riscv/kprobe: Fix instruction simulation of JALR
riscv: fix -Wundef warning for CONFIG_RISCV_BOOT_SPINWAIT
MAINTAINERS: add an IRC entry for RISC-V
RISC-V: fix compile error from deduplicated __ALTERNATIVE_CFG_2
dt-bindings: riscv: fix single letter canonical order
dt-bindings: riscv: fix underscore requirement for multi-letter extensions
riscv: uaccess: fix type of 0 variable on error in get_user()
riscv, kprobes: Stricter c.jr/c.jalr decoding
Link: https://lore.kernel.org/r/20230104180513.1379453-1-conor@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Since commit 03f11f03dbfe ("RISC-V: Parse cpu topology during boot.")
RISC-V has used the generic arch topology code, which provides for
disparate CPU capacities. We never defined a binding to acquire this
information from the DT though, so document the one already used by the
generic arch topology code: "capacity-dmips-mhz".
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Ley Foon Tan <leyfoon.tan@starfivetech.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230104180513.1379453-3-conor@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
RISC-V uses the same generic topology code as arm64 & while there
currently exists no binding for cpu-capacity on RISC-V, the code paths
can be hit if the property is present.
Move the documentation of cpu-capacity to a shared location, ahead of
defining a binding for capacity-dmips-mhz on RISC-V. Update some
references to this document in the process.
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Ley Foon Tan <leyfoon.tan@starfivetech.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Link: https://lore.kernel.org/r/20230104180513.1379453-2-conor@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
When adding the ISA string ordering rules, I didn't sufficiently indent
one of the list items.
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/linux-doc/202301300743.bp7Dpazv-lkp@intel.com/
Fixes: f07b2b3f9d47 ("Documentation: riscv: add a section about ISA string ordering in /proc/cpuinfo")
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Link: https://lore.kernel.org/r/20230129235701.2393241-1-conor@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
MultiPort E-Switch builds on newer hardware's capabilities and introduces
a mode where a single E-Switch is used and all the vports and physical
ports on the NIC are connected to it.
The new mode will allow in the future a decrease in the memory used by the
driver and advanced features that aren't possible today.
This represents a big change in the current E-Switch implantation in mlx5.
Currently, by default, each E-Switch manager manages its E-Switch.
Steering rules in each E-Switch can only forward traffic to the native
physical port associated with that E-Switch. While there are ways to target
non-native physical ports, for example using a bond or via special TC
rules. None of the ways allows a user to configure the driver
to operate by default in such a mode nor can the driver decide
to move to this mode by default as it's user configuration-driven right now.
While MultiPort E-Switch single FDB mode is the preferred mode, older
generations of ConnectX hardware couldn't support this mode so it was never
implemented. Now that there is capable hardware present, start the
transition to having this mode by default.
Introduce a devlink parameter to control MultiPort E-Switch single FDB mode.
This will allow users to select this mode on their system right now
and in the future will allow the driver to move to this mode by default.
Example:
$ devlink dev param set pci/0000:00:0b.0 name esw_multiport value 1 \
cmode runtime
Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Maor Dickman <maord@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Chimera Linux is a Linux distribution from 2021 that builds its kernels
with Clang.
Google transitioned its data center fleet to run Clang built kernels in
2021, and Meta did so as well in 2022. Meta talked about this at LPC
2022 at a talk titled Kernel Live Patching at Scale.
These were important milestones for building the kernel with Clang.
Making note of them helps improve confidence in the project.
Reviewed-by: Tom Rix <trix@redhat.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Sedat Dilek <sedat.dilek@gmail.com>
Co-developed-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
IPQ8074 has one Gen2 and one Gen3 PCIe port, with Gen2 already supported.
Document Gen3 port which uses the same controller as IPQ6018.
Link: https://lore.kernel.org/r/20230113164449.906002-6-robimarko@gmail.com
Signed-off-by: Robert Marko <robimarko@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Sort the compatibles list alphabetically for maintenance.
Link: https://lore.kernel.org/r/20230113164449.906002-5-robimarko@gmail.com
Signed-off-by: Robert Marko <robimarko@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Add bindings for two PCIe hosts on SM8350 platform. The only difference
between them is in the aggre0 clock, which warrants the oneOf clause for
the clocks properties.
Link: https://lore.kernel.org/r/20221118233242.2904088-2-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rob Herring <robh@kernel.org>
qcom,perst-regs is an phandle array of one item with a phandle and its
arguments.
Link: https://lore.kernel.org/r/20221109113202.74406-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Acked-by: Manivannan Sadhasivam <mani@kernel.org>
MSM8996 and MSM8998 use the same clocks, so use one order to make the
binding simpler.
Link: https://lore.kernel.org/r/20230106081203.14118-3-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rob Herring <robh@kernel.org>
Add new compatible for MSM8998 (compatible with MSM8996) to allow further
customizing if needed and to accurately describe the hardware.
Link: https://lore.kernel.org/r/20230106081203.14118-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rob Herring <robh@kernel.org>
predictions bug. When running in SMT mode and one of the sibling threads
transitions out of C0 state, the other thread gets access to twice as many
entries in the RSB, but unfortunately the predictions of the now-halted
logical processor are not purged. Therefore, the executing processor
could speculatively execute from locations that the now-halted processor
had trained the RSB on.
The Spectre v2 mitigations cover the Linux kernel, as it fills the RSB
when context switching to the idle thread. However, KVM allows a VMM to
prevent exiting guest mode when transitioning out of C0 using the
KVM_CAP_X86_DISABLE_EXITS capability can be used by a VMM to change this
behavior. To mitigate the cross-thread return address predictions bug,
a VMM must not be allowed to override the default behavior to intercept
C0 transitions.
These patches introduce a KVM module parameter that, if set, will prevent
the user from disabling the HLT, MWAIT and CSTATE exits.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"Certain AMD processors are vulnerable to a cross-thread return address
predictions bug. When running in SMT mode and one of the sibling
threads transitions out of C0 state, the other thread gets access to
twice as many entries in the RSB, but unfortunately the predictions of
the now-halted logical processor are not purged. Therefore, the
executing processor could speculatively execute from locations that
the now-halted processor had trained the RSB on.
The Spectre v2 mitigations cover the Linux kernel, as it fills the RSB
when context switching to the idle thread. However, KVM allows a VMM
to prevent exiting guest mode when transitioning out of C0 using the
KVM_CAP_X86_DISABLE_EXITS capability can be used by a VMM to change
this behavior. To mitigate the cross-thread return address predictions
bug, a VMM must not be allowed to override the default behavior to
intercept C0 transitions.
These patches introduce a KVM module parameter that, if set, will
prevent the user from disabling the HLT, MWAIT and CSTATE exits"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
Documentation/hw-vuln: Add documentation for Cross-Thread Return Predictions
KVM: x86: Mitigate the cross-thread return address predictions bug
x86/speculation: Identify processors vulnerable to SMT RSB predictions
Convert Qualcomm G-Link RPM edge binding to DT schema. Move it to
remoteproc as it better suits the purpose - communication channel with
remote processor.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230208101545.45711-6-krzysztof.kozlowski@linaro.org
Correct CDSP and MPSS power domains to match what is used in DTS and the
Linux driver:
sm8550-mtp.dtb: remoteproc@32300000: power-domain-names: ['cx', 'mxc', 'nsp'] is too long
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Neil Armstrong <neil.armstrong@linaro.org>
Fixes: 084258d60712 ("dt-bindings: remoteproc: qcom: adsp: document sm8550 adsp, cdsp & mpss compatible")
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230206193313.30667-1-krzysztof.kozlowski@linaro.org
This documents the aDSP, cDSP and MPSS DSPs present
on the SM6115 SoC.
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230128053504.2099620-2-bhupesh.sharma@linaro.org
Clarify the Explicit and Implicit meanings in the table of Pull Bias.
While at it, distinguish pull bias keywords used in ACPI by using bold
font in the table of the respective terms.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
- Add missing 'cache-unified' property in example for kryo OPP bindings
(Rob Herring).
- Fix error checking in opp_migrate_dentry() (Qi Zheng).
- Remove "select SRCU" (Paul E. McKenney).
- Let qcom,opp-fuse-level be a 2-long array for qcom SoCs (Konrad
Dybcio).
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Merge tag 'opp-updates-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm
Pull OPP (Operating Performance Points) updates for 6.3 from Viresh
Kumar:
"- Add missing 'cache-unified' property in example for kryo OPP bindings
(Rob Herring).
- Fix error checking in opp_migrate_dentry() (Qi Zheng).
- Remove "select SRCU" (Paul E. McKenney).
- Let qcom,opp-fuse-level be a 2-long array for qcom SoCs (Konrad
Dybcio)."
* tag 'opp-updates-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
OPP: fix error checking in opp_migrate_dentry()
dt-bindings: opp: v2-qcom-level: Let qcom,opp-fuse-level be a 2-long array
drivers/opp: Remove "select SRCU"
dt-bindings: opp: opp-v2-kryo-cpu: Add missing 'cache-unified' property in example
- Enable thermal cooling for Tegra194 (Yi-Wei Wang).
- Register module device table and add missing compatibles for
cpufreq-qcom-hw (Nícolas F. R. A. Prado, Abel Vesa and Luca Weiss).
- Various dt binding updates for qcom-cpufreq-nvmem and opp-v2-kryo-cpu
(Christian Marangi).
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Merge tag 'cpufreq-arm-updates-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm
Pull cpufreq ARM updates for 6.3 from Viresh Kumar:
"- Enable thermal cooling for Tegra194 (Yi-Wei Wang).
- Register module device table and add missing compatibles for
cpufreq-qcom-hw (Nícolas F. R. A. Prado, Abel Vesa and Luca Weiss).
- Various dt binding updates for qcom-cpufreq-nvmem and opp-v2-kryo-cpu
(Christian Marangi)."
* tag 'cpufreq-arm-updates-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
dt-bindings: opp: opp-v2-kryo-cpu: enlarge opp-supported-hw maximum
dt-bindings: cpufreq: qcom-cpufreq-nvmem: make cpr bindings optional
dt-bindings: cpufreq: qcom-cpufreq-nvmem: specify supported opp tables
dt-bindings: cpufreq: cpufreq-qcom-hw: Add SM8550 compatible
dt-bindings: cpufreq: cpufreq-qcom-hw: Add missing compatibles
cpufreq: mediatek-hw: Register to module device table
cpufreq: tegra194: Enable CPUFREQ thermal cooling
