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v7.3-rc1
4304 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
85671b807f |
More power management updates for 7.3-rc1
- Fix a kernel panic during PMU unbind in the intel_rapl power capping
driver and sign-extend the PMU delta on counter wraparound in it to
avoid misreporting energy (Sumeet Pawnikar and Yifan Li)
- Unblock runtime PM when device prepare fails that was not done by
mistake (Shibo Zhu)
- Fix possible rate limit overflow on 32-bit systems in the schedutil
cpufreq governor (Hui Su)
- Consolidate HWP P-states initialization in the intel_pstate cpufreq
driver and make that driver avoid using the DESIRED_PERF HWP hint
when the Dynamic Efficiency Control (DEC) is enabled in the processor
to avoid inconsistent behavior (Rafael Wysocki)
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Merge tag 'pm-7.3-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki:
"These fix two issues in the intel_rapl power capping driver, fix a
potential issue in the schedutil cpufreq governor on 32-bit systems,
fix a runtime PM issue related to failing system suspend, and update
the intel_pstate cpufreq driver:
- Fix a kernel panic during PMU unbind in the intel_rapl power
capping driver and sign-extend the PMU delta on counter wraparound
in it to avoid misreporting energy (Sumeet Pawnikar and Yifan Li)
- Unblock runtime PM when device prepare fails that was not done by
mistake (Shibo Zhu)
- Fix possible rate limit overflow on 32-bit systems in the schedutil
cpufreq governor (Hui Su)
- Consolidate HWP P-states initialization in the intel_pstate cpufreq
driver and make that driver avoid using the DESIRED_PERF HWP hint
when the Dynamic Efficiency Control (DEC) is enabled in the
processor to avoid inconsistent behavior (Rafael Wysocki)"
* tag 'pm-7.3-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
powercap: intel_rapl: Fix kernel panic during PMU unbind
PM: sleep: Unblock runtime PM when device prepare fails
powercap: intel_rapl: Sign-extend the PMU delta on counter wraparound
cpufreq: intel_pstate: Avoid using DESIRED_PERF when DEC is enabled
cpufreq: intel_pstate: Consolidate HWP P-states initialization
cpufreq: schedutil: Fix rate limit overflow
|
||
|
Rafael J. Wysocki
|
76854b339b |
Merge branches 'pm-cpufreq' and 'pm-sleep'
Merge additional cpufreq updates and one update related to system sleep for 7.3-rc1: - Unblock runtime PM when device prepare fails that was not done by mistake (Shibo Zhu) - Fix possible rate limit overflow on 32-bit systems in the schedutil cpufreq governor (Hui Su) - Consolidate HWP P-states initialization in the intel_pstate cpufreq driver and make that driver avoid using the DESIRED_PERF HWP hint when the Dynamic Efficiency Control (DEC) is enabled in the processor to avoid inconsistent behavior (Rafael Wysocki) * pm-cpufreq: cpufreq: intel_pstate: Avoid using DESIRED_PERF when DEC is enabled cpufreq: intel_pstate: Consolidate HWP P-states initialization cpufreq: schedutil: Fix rate limit overflow * pm-sleep: PM: sleep: Unblock runtime PM when device prepare fails |
||
|
Linus Torvalds
|
59e6295fac |
Driver core changes for 7.3-rc1
- container_of:
- Apply typeof_member(), remove the local __mptr variable to eliminate
variable shadowing warnings on nested container_of() calls, and remove
unnecessary parentheses.
- core:
- Add driver name to probe debug print for initcall_debug.
- Avoid repeatedly printing the same 'Fixed dependency cycle' log.
- Unwind device_add() on attribute creation failure in
attribute_container_add_class_device().
- Remove statistics group if encryption group creation fails in
transport_add_class_device().
- debugfs:
- Fix lockdown check for mmap_prepare().
- Warn if file creation failed due to uninitialized debugfs.
- device property:
- Implement fw_devlink support for software nodes by adding
software_node_add_links(), which creates fwnode links from DEV_PROP_REF
properties to enable automatic probe ordering. Add kunit-managed fwnode
helpers and test coverage.
- Fix infinite loop in fwnode_for_each_child_node() when the secondary fwnode
has more than one child. Add test cases.
- Fix out-of-bounds access in software_node_get_reference_args() when called
with index -1 (UINT_MAX).
- Refactor to use RAII approach with __free().
- Add Bartosz Golaszewski as software node reviewer.
- firmware loader:
- Fix race where a sysfs fallback request can complete before being queued as
pending, leading to a use-after-free on the next fallback request.
- Reject 0-size built-in firmware and fail the build on empty firmware files
in CONFIG_EXTRA_FIRMWARE.
- kobject:
- Provide __KOBJ_ATTR() and __KOBJ_ATTR_RO/WO() initialization macros and
allow the constification of kobject attributes, enabling them to reside in
read-only memory.
- platform:
- Provide platform_device_set_of_node(), platform_device_set_fwnode(), and
platform_device_set_of_node_from_dev() helpers that encapsulate firmware
node reference counting for dynamically allocated platform devices. Convert
all in-tree users that manually assigned dev.of_node or dev.fwnode, fixing a
pre-existing refcount bug in powermac. Switch to counting references of all
firmware node types, not only OF nodes.
- Unify the release path for dynamically allocated platform devices by
removing platform_device_release_full(). Amend the fwnode setter API
contract to warn if a primary software node is overwritten. Add KUnit tests
for correct software node removal on device unregistration.
- Rust:
- Auxiliary:
- Add registration_data_with() closure-based API for invariant ForLt types.
- Debugfs:
- Migrate BinaryWriter and BinaryReaderMut trait requirements from
kernel::transmute traits to zerocopy traits.
- Device:
- Add BoundInternal device context and InternalBoundContext trait for bus
abstractions that need internal access to a bound device.
- Make the lifetime on Core and CoreInternal invariant to prevent coercion
to shorter lifetimes.
- Devres:
- Fix race between concurrent revokers where the losing revoker could return
before the winning revoker finished dropping the inner data, causing
use-after-free.
- Ensure revocation is complete before the device finishes unbinding by
making the synchronization bidirectional.
- Add DevresLt<F: ForLt>, a wrapper around Devres that shortens 'static back
to the caller's borrow scope. Implement ForLt and CovariantForLt for Bar,
IoMem, and ExclusiveIoMem.
- Driver:
- Switch from index-based to pointer-based device ID info lookup, storing
static references in driver_data. Centralize device ID handling in
device_id.rs, removing the open-coded ACPI/OF matching logic and duplicate
ID table from driver.rs.
- I/O:
- Make I/O regions typed (with a dynamically-sized Region type for the
existing untyped case), create view types representing subregions of a
mapped I/O region, and add io_project!() for safely creating subviews.
- Split Io into a base trait (IoBase) and an extension trait (Io) with a
blanket implementation, preventing implementers from overriding provided
methods that unsafe code relies on.
- Add a SysMem backend for shared system memory with volatile access, and
make Coherent implement Io via an I/O view type. Add IoSysMap as sum type
of Mmio and SysMem. Add copying methods (memcpy_{from,to}io()) and
read_val()/write_val() for typed access.
- Replace dma_read!()/dma_write!() with io_read!()/io_write!() for
primitives and copying methods for aggregates; drop the old macros.
Convert nova-core to use I/O projection.
- Fix internal shortcut rule dispatch in the register!() macro, remove
unused rule arguments, and use path fragments for alias destinations.
- IRQ:
- Make irq::Registration compatible with lifetime-bound drivers by
removing the 'static bound on Handler/ThreadedHandler and
replacing Devres<RegistrationInner> with direct
request_irq()/free_irq() calls. Handlers can now directly own
lifetime-bound device resources.
- PCI:
- Convert IrqVectorRegistration to a lifetime-annotated owning type,
giving drivers explicit control over the allocation lifetime.
IrqVector embeds a resolved IrqRequest, making the conversion
infallible. Remove the redundant
request_irq()/request_threaded_irq() wrappers from pci::Device.
- Add pci_irq_type() C helper and expose it via irq_type() on
IrqVectorRegistration and IrqVector, returning PCI_IRQ_MSIX, PCI_IRQ_MSI,
or PCI_IRQ_INTX.
- Mark pci::Device refcount methods inline.
- Serdev:
- Add Rust abstractions for the serial device bus, including serdev::Driver
trait, serdev::Device wrapping struct serdev_device, and serdev::Adapter
implementing RegistrationOps. Includes a sample driver. Markus Probst
takes over as serdev maintainer for both C and Rust code.
- Misc:
- Split ForLt into a base trait (providing the Of<'a> GAT) and an unsafe
CovariantForLt subtrait guaranteeing covariance, enabling invariant types
(e.g. those containing Mutex<&'bound T>) to participate in the ForLt
abstraction.
- Fix Coherent read past EOF returning -ERANGE instead of zero.
- Fix firmware example UB by avoiding null-pointer ARef.
- misc:
- Avoid iattr allocation in kernfs listxattr by using kernfs_iattrs_noalloc().
- Unregister SoC bus on early device registration failure.
- Remove unused DMA_FENCE_TRACE Kconfig symbol.
- Fix /sys/module path in comment.
- Refactor ISA bus init to remove nested blocks.
- Remove redundant nodemask clears in numa_init().
- Add kernel-doc for fwnode_operations and sys_soc.h, mark internal property
data as private for kernel-doc, and add property.h/fwnode.h to driver-api
infrastructure docs.
- Add MAINTAINERS entry for sys_soc.h.
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Merge tag 'driver-core-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core
Pull driver core updates from Danilo Krummrich:
"container_of:
- Apply typeof_member(), remove the local __mptr variable to
eliminate variable shadowing warnings on nested container_of()
calls, and remove unnecessary parentheses
core:
- Add driver name to probe debug print for initcall_debug
- Avoid repeatedly printing the same 'Fixed dependency cycle' log
- Unwind device_add() on attribute creation failure in
attribute_container_add_class_device()
- Remove statistics group if encryption group creation fails in
transport_add_class_device()
debugfs:
- Fix lockdown check for mmap_prepare()
- Warn if file creation failed due to uninitialized debugfs
device property:
- Implement fw_devlink support for software nodes by adding
software_node_add_links(), which creates fwnode links from
DEV_PROP_REF properties to enable automatic probe ordering. Add
kunit-managed fwnode helpers and test coverage
- Fix infinite loop in fwnode_for_each_child_node() when the
secondary fwnode has more than one child. Add test cases
- Fix out-of-bounds access in software_node_get_reference_args() when
called with index -1 (UINT_MAX)
- Refactor to use RAII approach with __free()
- Add Bartosz Golaszewski as software node reviewer
firmware loader:
- Fix race where a sysfs fallback request can complete before being
queued as pending, leading to a use-after-free on the next fallback
request
- Reject 0-size built-in firmware and fail the build on empty
firmware files in CONFIG_EXTRA_FIRMWARE
kobject:
- Provide __KOBJ_ATTR() and __KOBJ_ATTR_RO/WO() initialization macros
and allow the constification of kobject attributes, enabling them
to reside in read-only memory
platform:
- Provide platform_device_set_of_node(), platform_device_set_fwnode(),
and platform_device_set_of_node_from_dev() helpers that encapsulate
firmware node reference counting for dynamically allocated platform
devices
Convert all in-tree users that manually assigned dev.of_node or
dev.fwnode, fixing a pre-existing refcount bug in powermac. Switch
to counting references of all firmware node types, not only OF
nodes
- Unify the release path for dynamically allocated platform devices
by removing platform_device_release_full(). Amend the fwnode setter
API contract to warn if a primary software node is overwritten. Add
KUnit tests for correct software node removal on device
unregistration
Rust:
- Auxiliary:
- Add registration_data_with() closure-based API for invariant
ForLt types
- Debugfs:
- Migrate BinaryWriter and BinaryReaderMut trait requirements
from kernel::transmute traits to zerocopy traits
- Device:
- Add BoundInternal device context and InternalBoundContext trait
for bus abstractions that need internal access to a bound
device.
- Make the lifetime on Core and CoreInternal invariant to prevent
coercion to shorter lifetimes
- Devres:
- Fix race between concurrent revokers where the losing revoker
could return before the winning revoker finished dropping the
inner data, causing use-after-free.
- Ensure revocation is complete before the device finishes
unbinding by making the synchronization bidirectional.
- Add DevresLt<F: ForLt>, a wrapper around Devres that shortens
'static back to the caller's borrow scope. Implement ForLt and
CovariantForLt for Bar, IoMem, and ExclusiveIoMem
- Driver:
- Switch from index-based to pointer-based device ID info lookup,
storing static references in driver_data. Centralize device ID
handling in device_id.rs, removing the open-coded ACPI/OF
matching logic and duplicate ID table from driver.rs
- I/O:
- Make I/O regions typed (with a dynamically-sized Region type
for the existing untyped case), create view types representing
subregions of a mapped I/O region, and add io_project!() for
safely creating subviews.
- Split Io into a base trait (IoBase) and an extension trait (Io)
with a blanket implementation, preventing implementers from
overriding provided methods that unsafe code relies on.
- Add a SysMem backend for shared system memory with volatile
access, and make Coherent implement Io via an I/O view type.
Add IoSysMap as sum type of Mmio and SysMem. Add copying
methods (memcpy_{from,to}io()) and read_val()/write_val() for
typed access.
- Replace dma_read!()/dma_write!() with io_read!()/io_write!()
for primitives and copying methods for aggregates; drop the old
macros. Convert nova-core to use I/O projection.
- Fix internal shortcut rule dispatch in the register!() macro,
remove unused rule arguments, and use path fragments for alias
destinations
- IRQ:
- Make irq::Registration compatible with lifetime-bound drivers
by removing the 'static bound on Handler/ThreadedHandler and
replacing Devres<RegistrationInner> with direct
request_irq()/free_irq() calls. Handlers can now directly own
lifetime-bound device resources
- PCI:
- Convert IrqVectorRegistration to a lifetime-annotated owning
type, giving drivers explicit control over the allocation
lifetime. IrqVector embeds a resolved IrqRequest, making the
conversion infallible. Remove the redundant
request_irq()/request_threaded_irq() wrappers from pci::Device.
- Add pci_irq_type() C helper and expose it via irq_type() on
IrqVectorRegistration and IrqVector, returning PCI_IRQ_MSIX,
PCI_IRQ_MSI, or PCI_IRQ_INTX.
- Mark pci::Device refcount methods inline
- Serdev:
- Add Rust abstractions for the serial device bus, including
serdev::Driver trait, serdev::Device wrapping struct
serdev_device, and serdev::Adapter implementing
RegistrationOps. Includes a sample driver. Markus Probst takes
over as serdev maintainer for both C and Rust code
- Misc:
- Split ForLt into a base trait (providing the Of<'a> GAT) and an
unsafe CovariantForLt subtrait guaranteeing covariance,
enabling invariant types (e.g. those containing Mutex<&'bound T>)
to participate in the ForLt abstraction.
- Fix Coherent read past EOF returning -ERANGE instead of zero.
- Fix firmware example UB by avoiding null-pointer ARef
misc:
- Avoid iattr allocation in kernfs listxattr by using
kernfs_iattrs_noalloc().
- Unregister SoC bus on early device registration failure.
- Remove unused DMA_FENCE_TRACE Kconfig symbol.
- Fix /sys/module path in comment.
- Refactor ISA bus init to remove nested blocks.
- Remove redundant nodemask clears in numa_init().
- Add kernel-doc for fwnode_operations and sys_soc.h, mark
internal property data as private for kernel-doc, and add
property.h/fwnode.h to driver-api infrastructure docs.
- Add MAINTAINERS entry for sys_soc.h"
* tag 'driver-core-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: (129 commits)
rust: pci: expose the allocated interrupt type
PCI: Add pci_irq_type() to query the allocated interrupt type
rust: pci: remove request_irq() and request_threaded_irq() from Device
rust: pci: resolve IRQ in index() and embed IrqRequest in IrqVector
rust: pci: convert IrqVectorRegistration to a lifetime-managed owning type
kernfs: avoid iattr allocation in listxattr
rust: serdev: use ThisModule::as_ptr() instead of field access
ACPI/IORT: use platform_device_set_fwnode()
ACPI/APMT: use platform_device_set_fwnode()
firmware_loader: do not queue completed sysfs fallback requests
rust: pci: Mark Device refcount methods inline
rust: irq: make Registration compatible with lifetime-bound drivers
rust: net/phy: remove expansion from doc
rust: dma: return zero for Coherent reads past EOF
rust: io: register: use path fragment for alias destination
rust: io: register: remove unused rule arguments
rust: io: register: dispatch shortcut rules internally
MAINTAINERS: add sys_soc.h to DRIVER CORE
rust: debugfs: remove unsafe blocks from traits impl for Vec
rust: debugfs: migrate debugfs traits requirements to zerocopy
...
|
||
|
Linus Torvalds
|
cbe8aadf15 |
soc: devicetree updates for 7.3
There are two new mystery SoCs with very little public information
about them so far, Qualcomm's Cortex-A78C based "Shikra" and
Altera's Cortex-A720 based Agilex72 SOCFPGA.
We have also gained support for a couple of SoCs from the
2023/2024 timeframe that have been in the making for a while:
- The Apple platform gains support for M3 Pro, Max and Ultra SoC,
following the basic M3 support from 7.2.
- Samsung Exynos 1580 is a high-end mobile phone SoC from 2024
- Canaan K230 is a RISC-V based 64-bit AI SoC, based on the
earlier K210 chip
- Sophgo SG2000 is a mixed Arm/RISC-V chip that was already
supported using the Arm core but is now also added for RISC-V
along with several other variants of the cv18xx series
In terms of newly added machines we have reference platforms
for all the chips above, plus
- only four 32-bit Arm boards: two older phones and two
older industrial/embedded boards; using Allwinner, Qualcomm and
Rockchip SoCs
- Three laptops und three phones using Qualcomm SoCs
- Ten 64-bit Rockchips based single-board computers, along with one
NAS box and a game console.
- Seven industrial/embedded boards and modules using NXP i.MX8/9 SoCs.
- A Lenovo desktop box based on NVIDIA Jetson Xavier NX
- A few more single-board computers based on Allwinnner A133,
Spacemit K1 and TI AM62.
As usual, there is a constant stream of minor cleanups and fixes
towards addressing the 'dt-check-style --mode strict' warnings,
and everyone is expected to address those warnings for new
submissions now.
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Merge tag 'soc-dt-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC devicetree updates from Arnd Bergmann:
"There are two new mystery SoCs with very little public information
about them so far, Qualcomm's Cortex-A78C based "Shikra" and Altera's
Cortex-A720 based Agilex72 SOCFPGA.
We have also gained support for a couple of SoCs from the 2023/2024
timeframe that have been in the making for a while:
- The Apple platform gains support for M3 Pro, Max and Ultra SoC,
following the basic M3 support from 7.2.
- Samsung Exynos 1580 is a high-end mobile phone SoC from 2024
- Canaan K230 is a RISC-V based 64-bit AI SoC, based on the earlier
K210 chip
- Sophgo SG2000 is a mixed Arm/RISC-V chip that was already supported
using the Arm core but is now also added for RISC-V along with
several other variants of the cv18xx series
In terms of newly added machines we have reference platforms for all
the chips above, plus
- Only four 32-bit Arm boards: two older phones and two older
industrial/embedded boards; using Allwinner, Qualcomm and Rockchip
SoCs
- Three laptops und three phones using Qualcomm SoCs
- Ten 64-bit Rockchips based single-board computers, along with one
NAS box and a game console.
- Seven industrial/embedded boards and modules using NXP i.MX8/9
SoCs.
- A Lenovo desktop box based on NVIDIA Jetson Xavier NX
- A few more single-board computers based on Allwinnner A133,
Spacemit K1 and TI AM62.
As usual, there is a constant stream of minor cleanups and fixes
towards addressing the 'dt-check-style --mode strict' warnings, and
everyone is expected to address those warnings for new submissions
now"
* tag 'soc-dt-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (864 commits)
Revert "riscv: dts: spacemit: k3: add i2s0-i2s5 nodes"
Documentation/process: maintainer-soc: Mention expectation about dt-check-style
ARM: dts: helios4: add SATA regulator supplies
ARM: dts: helios4: add vcc-supply to GPIO expander
ARM: dts: helios4: add vcc-supply to EEPROM
arm64: dts: turris-mox: fix usb3 phys
arm64: dts: ti: Correct white-space style
arm64: dts: ti: k3-am64: Fix MDIO clock reference for ICSSG0 node
arm64: dts: qcom: talos-evk: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
arm64: dts: qcom: sa8155p-adp: Fix swapped USB and UFS QMP PHY vdda-phy/vdda-pll supplies
arm64: dts: qcom: eliza-mtp: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
arm64: dts: qcom: lemans: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
arm64: dts: qcom: glymur: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
arm64: dts: qcom: kaanapali: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
arm64: dts: qcom: sar2130p: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
arm64: dts: qcom: sm8750: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
arm64: dts: qcom: sm8650: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
arm64: dts: qcom: purwa: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
arm64: dts: qcom: hamoa: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
arm64: dts: qcom: sc8180x: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
...
|
||
|
Linus Torvalds
|
8dcef8882a |
x86/msr updates for v7.3:
- Streamline the x86 MSR handling APIs along the 64-bit
variants, simplifying the interfaces. Removal of the
old APIs is planned for the next cycle, to reduce
churn & integration pain. (Juergen Gross)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-msr-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 MSR updates from Ingo Molnar:
- Streamline the x86 MSR handling APIs along the 64-bit variants,
simplifying the interfaces.
Removal of the old APIs is planned for the next cycle, to reduce
churn & integration pain (Juergen Gross)
* tag 'x86-msr-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)
x86/mce: Work around build warning after MSR-interface switch
cpufreq: Stop using 32-bit MSR interfaces
x86/featctl: Stop using 32-bit MSR interfaces
KVM/x86: Stop using 32-bit MSR interfaces
x86/mtrr: Stop using 32-bit MSR interfaces
acpi: Stop using 32-bit MSR interfaces
powercap: Stop using 32-bit MSR interfaces
thermal/intel: Stop using 32-bit MSR interfaces
x86/olpc: Stop using 32-bit MSR interfaces
x86/hyperv: Stop using 32-bit MSR interfaces
hwmon: Stop using 32-bit MSR interfaces
EDAC: Stop using 32-bit MSR interfaces
x86/cpu: Stop using 32-bit MSR interfaces
x86/apic: Stop using 32-bit MSR interfaces
x86/resctrl: Stop using 32-bit MSR interfaces
x86/tsc: Stop using 32-bit MSR interfaces
x86/amd: Stop using 32-bit MSR interfaces
x86/pci: Stop using 32-bit MSR interfaces
x86/hygon: Stop using 32-bit MSR interfaces
x86/mce: Stop using 32-bit MSR interfaces
...
|
||
|
Linus Torvalds
|
a5778046a0 |
Power management updates for 7.3-rc1
- Minor fixes and cleanups in assorted cpufreq drivers (Dan Carpenter,
Guru Das Srinagesh, Haoxiang Li, Karl Mehltretter, Sasha Finkelstein,
and Pan Chuang)
- Fix cpufreq table creation and bios_limits() callback in the Rust
bindings (Priya Bala Govindasamy)
- Add IPQ5210 support to qcom-nvmem driver (Varadarajan Narayanan)
- Adjust the .adjust_perf() cpufreq driver callback to allow the
maximum performance value to be passed to drivers and update the
intel_pstate driver to use it (Rafael Wysocki)
- Set policy->cur to the actual requested frequency in the intel_pstate
driver when the performance policy is used (Rafael Wysocki)
- Simplify HWP handling on Broadwell processors in intel_pstate (Rafael
Wysocki)
- Fix setting minimum P-state at init time in intel_pstate (Rafael
Wysocki)
- Consolidate frequency values computation in intel_pstate and clean up
code in that driver (Rafael Wysocki)
- Add missing kernel-doc descriptions for structure and union members
in the amd-pstate driver (David Vernet)
- Handle missing policy in dynamic EPP callbacks in the amd-pstate
driver (EDAMAMEX)
- Introduce EXPORT_SYMBOL_FOR_PSTATE_UT() to export amd-pstate driver
symbols to the amd-pstate-ut subdriver (K Prateek Nayak)
- Add dynamic EPP as an "energy_performance_preference" mode in
amd-pstate, remove the "amd_dynamic_epp" kernel command line option
and the "dynamic_epp" sysfs attribute, and update the dynamic_epp
documentation accordingly (K Prateek Nayak)
- Add unit tests for CPPC Performance Priority and the "dynamic" EPP
mode in the amd-pstate driver (K Prateek Nayak)
- Set min_limit_freq based on bios_min_perf in amd-pstate and remove
the defensive check for bios_min_perf from it (K Prateek Nayak)
- Fix EPP return type and handle errors in amd-pstate during
initialization, toggle auto_sel in active mode on shared memory
systems, and cache the firmware programmed EPP value (Marco Scardovi)
- Skip tests in amd-pstate-ut if the amd-pstate driver is not in active
use (Qianheng Peng)
- Replace sprintf() with sysfs_emit() in sysfs show in the cpufreq
schedutil governor and fix a self-contradictory comment in
sugov_iowait_apply() (Zhongqiu Han)
- Fix the usage example for the sampling_rate tunable of the ondemand
cpufreq governor in admin-guide (wangxiaodong)
- Avoid using deep idle states during initialization in the intel_idle
driver to work around device handling issues (Rafael Wysocki)
- Fix and refactor the ACPI processor driver code related to ACPI _LPI
support and add ACPI _LPI support to intel_idle based on that ACPI
processor driver update (Rafael Wysocki)
- Backup and restore governor for cpufreq sptests (Yiwei Lin)
- Remove unnecessary sudo from quick_shuffle() and remove unused local
variables from switch_show_governor() in cpufreq selftests (Jinseok
Kim)
- Rename the PM core module parameter prefix to "pm" and allow the PM
transition (DPM) watchdog to be disabled by default (Tzung-Bi Shih)
- Fix off-by-one in wakelocks number limit check in the system sleep
sysfs interface (Haowen Tu)
- Remove kernel-doc markings from helper descriptions in the core
hibernation code (Adi Nata)
- Use %pe to print error pointer values in the hibernation core (Ronan
Marchal)
- Fix memory leak in snapshot_write_next() error path (Malaya Kumar
Rout)
- Delay allocating and linking the next swap_map_page in the
hibernation image saving code until another image page actually
needs to be recorded (Haesung Kim)
- Fix cleanup ordering around scope-based pointers in OPP (Gregor
Herburger).
- Use clk_get_optional() for optional clocks in OPP (Praveen Talari).
- Stop setting runtime_error on runtime resume callback failures to
allow drivers to recover from resume issues (Praveen Talari)
- Handle PMU registration failure during probe in the intel_rapl_tpmi
driver (Sumeet Pawnikar)
- Avoid optional imports in intel_pstate_tracer unless they are really
needed (Yousef Alhouseen)
- Add generic CPPC performance display to the cpupower utility, build
and call CPPC information on non-AMD processors, make cpupower print
kernel and hardware frequency information, and add libm to cpupower
for generic CPPC view (Jeremy Linton)
- Remove conditional return with no effect from cpupower (Sang-Heon
Jeon)
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Merge tag 'pm-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"As has been the case for quite some time, this set of changes is
dominated by cpufreq updates including intel-pstate and amd-pstate
driver updates, minor fixes and cleanups of other assorted cpufreq
drivers, schedutil governor updates, fixes of the Rust bindings, new
hardware support (IPQ5210 in qcom-nvmem), and some updates of self
tests related to cpufreq.
The second largest group of changes are cpuidle updates consisting of
intel_idle driver updates and ACPI processor idle driver updates, both
mostly related to ACPI _LPI support.
There are also updates related to system sleep, mostly in the
hibernation core code, two operating performance points (OPP) updates,
one runtime PM framework update, one power capping update, and some
tools updates including the addition of ACPI CPPC support to cpupower.
Specifics:
- Minor fixes and cleanups in assorted cpufreq drivers (Dan
Carpenter, Guru Das Srinagesh, Haoxiang Li, Karl Mehltretter, Sasha
Finkelstein, and Pan Chuang)
- Fix cpufreq table creation and bios_limits() callback in the Rust
bindings (Priya Bala Govindasamy)
- Add IPQ5210 support to qcom-nvmem driver (Varadarajan Narayanan)
- Adjust the .adjust_perf() cpufreq driver callback to allow the
maximum performance value to be passed to drivers and update the
intel_pstate driver to use it (Rafael Wysocki)
- Set policy->cur to the actual requested frequency in the
intel_pstate driver when the performance policy is used (Rafael
Wysocki)
- Simplify HWP handling on Broadwell processors in intel_pstate
(Rafael Wysocki)
- Fix setting minimum P-state at init time in intel_pstate (Rafael
Wysocki)
- Consolidate frequency values computation in intel_pstate and clean
up code in that driver (Rafael Wysocki)
- Add missing kernel-doc descriptions for structure and union members
in the amd-pstate driver (David Vernet)
- Handle missing policy in dynamic EPP callbacks in the amd-pstate
driver (EDAMAMEX)
- Introduce EXPORT_SYMBOL_FOR_PSTATE_UT() to export amd-pstate driver
symbols to the amd-pstate-ut subdriver (K Prateek Nayak)
- Add dynamic EPP as an "energy_performance_preference" mode in
amd-pstate, remove the "amd_dynamic_epp" kernel command line option
and the "dynamic_epp" sysfs attribute, and update the dynamic_epp
documentation accordingly (K Prateek Nayak)
- Add unit tests for CPPC Performance Priority and the "dynamic" EPP
mode in the amd-pstate driver (K Prateek Nayak)
- Set min_limit_freq based on bios_min_perf in amd-pstate and remove
the defensive check for bios_min_perf from it (K Prateek Nayak)
- Fix EPP return type and handle errors in amd-pstate during
initialization, toggle auto_sel in active mode on shared memory
systems, and cache the firmware programmed EPP value (Marco
Scardovi)
- Skip tests in amd-pstate-ut if the amd-pstate driver is not in
active use (Qianheng Peng)
- Replace sprintf() with sysfs_emit() in sysfs show in the cpufreq
schedutil governor and fix a self-contradictory comment in
sugov_iowait_apply() (Zhongqiu Han)
- Fix the usage example for the sampling_rate tunable of the ondemand
cpufreq governor in admin-guide (wangxiaodong)
- Avoid using deep idle states during initialization in the
intel_idle driver to work around device handling issues (Rafael
Wysocki)
- Fix and refactor the ACPI processor driver code related to ACPI
_LPI support and add ACPI _LPI support to intel_idle based on that
ACPI processor driver update (Rafael Wysocki)
- Backup and restore governor for cpufreq sptests (Yiwei Lin)
- Remove unnecessary sudo from quick_shuffle() and remove unused
local variables from switch_show_governor() in cpufreq selftests
(Jinseok Kim)
- Rename the PM core module parameter prefix to "pm" and allow the PM
transition (DPM) watchdog to be disabled by default (Tzung-Bi Shih)
- Fix off-by-one in wakelocks number limit check in the system sleep
sysfs interface (Haowen Tu)
- Remove kernel-doc markings from helper descriptions in the core
hibernation code (Adi Nata)
- Use %pe to print error pointer values in the hibernation core
(Ronan Marchal)
- Fix memory leak in snapshot_write_next() error path (Malaya Kumar
Rout)
- Delay allocating and linking the next swap_map_page in the
hibernation image saving code until another image page actually
needs to be recorded (Haesung Kim)
- Fix cleanup ordering around scope-based pointers in OPP (Gregor
Herburger).
- Use clk_get_optional() for optional clocks in OPP (Praveen Talari).
- Stop setting runtime_error on runtime resume callback failures to
allow drivers to recover from resume issues (Praveen Talari)
- Handle PMU registration failure during probe in the intel_rapl_tpmi
driver (Sumeet Pawnikar)
- Avoid optional imports in intel_pstate_tracer unless they are
really needed (Yousef Alhouseen)
- Add generic CPPC performance display to the cpupower utility, build
and call CPPC information on non-AMD processors, make cpupower
print kernel and hardware frequency information, and add libm to
cpupower for generic CPPC view (Jeremy Linton)
- Remove conditional return with no effect from cpupower (Sang-Heon
Jeon)"
* tag 'pm-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (76 commits)
cpufreq: imx6q: fix out-of-bounds write when probed more than once
cpufreq: imx6q: fix devres accumulation across driver rebind
rust: cpufreq: Fix temporary write in Registration::bios_limit_callback
rust: cpufreq: Add CPUFREQ_TABLE_END as last table entry in TableBuilder::to_table
opp: Use clk_get_optional() to avoid leaving opp_table->clk as an error pointer
intel_idle: Avoid using deep idle states during initialization
cpupower: remove conditional return with no effect
cpufreq: intel_pstate: Adjust policy->cur in active mode to policy
cpufreq/amd-pstate: Document missing kernel-doc members
cpufreq/amd-pstate-ut: Add unit test for CPPC Performance Priority
cpufreq/amd-pstate-ut: Add unit test for "dynamic" EPP mode
cpufreq/amd-pstate: Reduce the scope of exported symbols
Documentation/amd-pstate: Update dynamic_epp documentation with new behavior
cpufreq/amd-pstate: Remove "amd_dynamic_epp" cmdline and "dynamic_epp" sysfs
cpufreq/amd-pstate: Add dynamic EPP as an "energy_performance_preference" mode
cpufreq/amd-pstate: Extract platform profile to EPP conversion into a helper
cpufreq/amd-pstate: Remove the defensive check for bios_min_perf
cpufreq/amd-pstate: Set min_limit_freq based on bios_min_perf
powercap: intel_rapl_tpmi: Handle PMU registration failure during probe
PM: sleep: Allow disabling DPM watchdog by default
...
|
||
|
Rafael J. Wysocki
|
d657aa1b8e |
cpufreq: intel_pstate: Avoid using DESIRED_PERF when DEC is enabled
In principle, the desired performance level can be set in MSR_HWP_REQUEST to indicate to the processor what performance level the OS would like the given CPU to run at, but if the Dynamic Efficiency Control (DEC) feature is enabled in the processor, doing so may result in confusing the processor firmware. It is then better to let the processor firmware figure out the most suitable performance level by itself. Accordingly, make intel_pstate always set the desired performance level to zero (which means "no preference") when running on a platform with DEC enabled. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Link: https://patch.msgid.link/4758098.LvFx2qVVIh@rafael.j.wysocki |
||
|
Rafael J. Wysocki
|
c659fa329e |
cpufreq: intel_pstate: Consolidate HWP P-states initialization
After previous changes, intel_pstate_hybrid_hwp_adjust() does not do much and its name and kerneldoc comment (which is not really necessary because the function is static) have become a bit confusing. Moreover, the initialization of P-states on systems with HWP enabled is divided between it and a direct conditional statement branch in intel_pstate_get_cpu_pstates() which is not super-easy to follow. Address this by introducing intel_pstate_get_hwp_pstates() for the entire HWP-specific initialization of P-states and moving the code from intel_pstate_hybrid_hwp_adjust() into it along with some HWP-related code from intel_pstate_get_cpu_pstates(). No intentional functional impact. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/6021518.DvuYhMxLoT@rafael.j.wysocki |
||
|
Danilo Krummrich
|
dbaafe9cc5 |
Linux 7.2-rc7
-----BEGIN PGP SIGNATURE----- iQFSBAABCgA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAmp49yoeHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiG1WIH/1SD1rNIb4Prf0C7 Rk9Hz0IZ3uYNe1Xi+Ozv3zQUuLB6d7ewl9e4zyHHYT4eeIKvBZv9jtIF3QH4ty5X JB9Gy62WICtqIEkzzt2bkcV1byFmKz2+BLv04fgcyTXEGOEByCDiZ3/N3kSJOqvg YxsGOmKkQSTavFLSe96Gj2pgchJqZ6j3qucDO6GrPOo8depP2kfzxfaJbXix0HEZ ln08X9hgZDxy4I98PmSaaJsK2R/i6T6jQdA3i8DnSbbyNhLn+3FK6gkP08ZEpaor 82WwJf+MVCLHXLYDy0aYOUDHpkNkkJWOj45A2Hv9JkOupGcUpyPGr82l4yh/MrxC +kM28xs= =rIbd -----END PGP SIGNATURE----- Merge tag 'v7.2-rc7' into driver-core-next We need the driver-core fixes in here as well to build on top of. Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
||
|
Alexandre Belloni
|
b981359d9e |
arm64: tegra: Device tree changes for v7.3-rc1
This contains a new device tree for the Lenove ThinkEdge SE70 Edge Client device as well as a number of fixes and cleanups for Tegra234 and Tegra194. Tegra264 sees a number of additions to enable more features. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEiOrDCAFJzPfAjcif3SOs138+s6EFAmpvcb8ACgkQ3SOs138+ s6EVRg//e3keeg7ehCUFVA8mDnGfxtIR5ErkU0I5LkCaQucREvHveHuNSayiNSM0 DQVcqv3n/egea4Nnon+eH4ddpa0fosFUm0tW1agLdvhn41nKhiTg/vNcPUwqNE+p qw43rl5ecChZslW8l8+4eln9sRoTnxBKKlydu5aKKVQtpLbn23uZTwtlSwMWcduO 0GjNOpvrjNyLWzGQ6lrO7uxRxrTHJPYm68Y/sVt38tZYHKC/Ksosy1/o0fKwJd4Q kMfk2lu1DxY6LGihNmNgpoITva0EaxtwDN1I4IO+dWLNq+feOrwCdTIaanycQPSw 29COUfEcpblWvkRxd6ffWLwsAEk1ydR49FaJLgaAddb0ImEJfEeiaz8roAMqW24Q QEEDtSwg8JeC4dhWSgOqPOin328hiz3gEG3qYkP/Bi9NgCq2a0eVRlWfBOkgPI8u isGcVm1yfb2cxdgC26QWivLtuTxDNeHp/rcyGAinWrzd5FJFMvd/tn76inOS33X1 U4shiIvnYDMh0j1VkvHa2ZvN1lqOTmbAGqHOF0iuCC2fhHuu6VW3/7j7wYgtv4gP Mp2dfVWEdj1Yp+iedS63XN+rFnEqMqw2733TkI1ThLzF3PXz0BO73QMvY+qAujlV 8eLPr5091lXQKYCKCLx8AGBpLtXOFHzS1BxR/tr+OPWAutGFoXA= =qSTk -----END PGP SIGNATURE----- Merge tag 'tegra-for-7.3-arm64-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into soc/dt arm64: tegra: Device tree changes for v7.3-rc1 This contains a new device tree for the Lenove ThinkEdge SE70 Edge Client device as well as a number of fixes and cleanups for Tegra234 and Tegra194. Tegra264 sees a number of additions to enable more features. * tag 'tegra-for-7.3-arm64-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: (1469 commits) arm64: tegra: Correct Tegra234 p3740 interrupt flags arm64: tegra: Correct Tegra234 p3737 interrupt flags arm64: tegra: Correct Tegra194 p2972 interrupt flags arm64: tegra: Drop CPU masks from GICv3 PPI interrupts arm64: tegra: Add Lenovo ThinkEdge SE70 device tree arm64: tegra: Add pinctrl nodes for Tegra264 arm64: tegra: Fix CMDQV interrupt type on Tegra264 arm64: tegra: Properly sort devices on Tegra264 arm64: tegra: Add GTE nodes for Tegra264 arm64: tegra: Add Host1x and VIC on Tegra264 arm64: tegra: Populate CPU and L2 cache nodes on Tegra264 arm64: tegra: Enable GPCDMA in Tegra264 and add iommu-map Linux 7.2-rc5 super: fix emergency thaw deadlock on frozen block devices tracing: perf: Fix stale head for perf syscall tracing ftrace: Add global mutex to serialize trace_parser access tracing: Delay module ref count for "enable_event" trigger tracing: Fix use-after-free freeing trigger private data bpf, sockmap: Fix cork use-after-free in tcp_bpf_sendmsg() tracing: Fix context switch counter truncation ... Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> |
||
|
Alexandre Belloni
|
0b02b8f941 |
RISC-V SpacemiT DT changes for 7.3
For K3 SoC - Enable SD card support - Enable QSPI - Fix reset delay of ETH PHY - Fix PHY ID of ETH - Symbolic PDAM ID - Add SPI controller support - Add USB and PHY support - Add I2S nodes For K1 SoC - Symbolic PDAM ID - Enable cpufreq support - Fix max CPU core voltage For boards of K3 - Pico-ITX - Enable ALDPS on RTL8211F PHY - Disable 125MHz clock on RTL8211F PHY - Enable NOR flash - Add EEPROM support - CoM260 - Add EEPROM support For boards of K1 - Milk-V Jupiter - Enable CPU DVFS - Banana Pi BPI-CM6 - Add initial support - OrangePi R2S - Enable PCIe -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQKvBAABCgCZFiEEtbq4ycMbcRVnAiPcMarqR1lNu+0FAmpupawbFIAAAAAABAAO bWFudTIsMi41KzEuMTIsMiwyXxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25z Lm9wZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXRCNUJBQjhDOUMzMUI3MTE1NjcwMjIz REMzMUFBRUE0NzU5NERCQkVEAAoJEDGq6kdZTbvtuDgP/0+IIPDo/U7U0IhT+dAx Mxr1fWX1M4h5nEmirD8Zsx8TSfvZrpZr5MvazjrHxZ5U2U4ntkqrcoByhIqEy6Dn wz3A8arOEe3BU1zXf4UAPAW0CZA3Bp9rEDgwbgsTfyelSLyeDqaMX8l/8XQLU8Sl f28L5p+5AQota4Cutl36yE/KP6cK+7SBSgXA2Rnb9SXzvwC9cQGuOUq71zUsS7jI FdpYcvyCbLFmUiq2XoeFAdGB04nYs28VWiFnHg7FNdrCqWH6pgi/zxd3QtlTxjd6 oIrp/NsBnx9WAyx9GDhckpqOLt+sA49BjMTArBHmytVBI0ku2kbueQXJIS2J2OEq Cj4jkMD36Mbk21UP/3OOohARxPYWDDsRQ6NzvAMqNnmFdGa2lTCGA2pBsXF6pzYA cgFoSQq3s37ArNWaFxeCgnAnzyUWtEUEA3wcp+04xh4s9a90khxuU/rpF+GuyZwp 5Bfppy9L9dI6BogmfAcMsVHcLd0UhDoC6nokx8QLCtrVKEnpvWHfAtWProzEINfX k9K+f+fLtvL4aWGevKfZZfbMwFRrDaARI03HqW/flUjLBVggoC2FFo63WOfEmvZr ldCmIWM2iDgr7gBTSy8FSX+3FNROyc2xDFhM189crVvK0+LCCMyqGhHFNnk6NYbU NRf7S+rwIN9yrBSUgrX6GCXs =WKqT -----END PGP SIGNATURE----- Merge tag 'spacemit-dt-for-7.3-1' of https://git.kernel.org/pub/scm/linux/kernel/git/spacemit/linux into soc/dt RISC-V SpacemiT DT changes for 7.3 For K3 SoC - Enable SD card support - Enable QSPI - Fix reset delay of ETH PHY - Fix PHY ID of ETH - Symbolic PDAM ID - Add SPI controller support - Add USB and PHY support - Add I2S nodes For K1 SoC - Symbolic PDAM ID - Enable cpufreq support - Fix max CPU core voltage For boards of K3 - Pico-ITX - Enable ALDPS on RTL8211F PHY - Disable 125MHz clock on RTL8211F PHY - Enable NOR flash - Add EEPROM support - CoM260 - Add EEPROM support For boards of K1 - Milk-V Jupiter - Enable CPU DVFS - Banana Pi BPI-CM6 - Add initial support - OrangePi R2S - Enable PCIe * tag 'spacemit-dt-for-7.3-1' of https://git.kernel.org/pub/scm/linux/kernel/git/spacemit/linux: (33 commits) riscv: dts: spacemit: Add cpu scaling for Milk-V Jupiter riscv: dts: spacemit: k1-bananapi-cm6: fix maximum CPU core voltage riscv: dts: spacemit: k1-orangepi-r2s: fix maximum CPU core voltage riscv: dts: spacemit: k1-musepi-pro: fix maximum CPU core voltage riscv: dts: spacemit: k1-orangepi-rv2: fix maximum CPU core voltage riscv: dts: spacemit: k1-milkv-jupiter: fix maximum CPU core voltage riscv: dts: spacemit: k1-bananapi-f3: fix maximum CPU core voltage riscv: dts: spacemit: Make dtschema recognize the etherent PHY correctly on K3 com260 board riscv: dts: spacemit: Make dtschema recognize the etherent PHY correctly on K3 pico-itx board riscv: dts: spacemit: k3: add i2s0-i2s5 nodes riscv: dts: spacemit: k3: add USB controller and USB phy support riscv: dts: spacemit: enable PCIe on OrangePi R2S riscv: dts: spacemit: k3-com260-ifx: add eeprom on i2c1 riscv: dts: spacemit: k3-com260: add eeprom on i2c2 riscv: dts: spacemit: add SPI controllers for K3 riscv: dts: spacemit: add K3 PDMA request numbers riscv: dts: spacemit: Fix phy id check for the phy on com260 board riscv: dts: spacemit: Fix phy id check for the phy on pico-itx board riscv: dts: spacemit: Add enough deassert time for the PHY on com260 board riscv: dts: spacemit: Add enough deassert time for the PHY on PICO ITX ... Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> |
||
|
Rafael J. Wysocki
|
f4fa4b7c3f |
CPUFreq arm updates for 7.3
- Minor fixes / cleanups in cpufreq drivers (Dan Carpenter, Guru Das Srinagesh, Haoxiang Li, Karl Mehltretter, Sasha Finkelstein, and Pan Chuang). - Fix cpufreq table creation and bios_limits() callback in the Rust bindings (Priya Bala Govindasamy). - Add IPQ5210 support to qcom-nvmem driver (Varadarajan Narayanan). -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEx73Crsp7f6M6scA70rkcPK6BEhwFAmp0KYAACgkQ0rkcPK6B Ehxsow/+IrqGfGqroec6PCnK+oCSCgRTcgoXDk01A8lHH2yS9wHv08sW9r1yxCrY DVCgV5M8u2w/Q5/6Zop9JalliV8MVom5zlbeMnc5kgybH9ZRZWI0KhkMH9pNIBaI ZLlNjcldt7k/pZoRUhJSDEbMKAUZvb2t607UzcPLjBsibHdUil+KGrwT5GkaUnCu AkjXNRd3Tjt39NgRBzUhHvMAx4pUftw80G7ic+leKL+D9OAWsZUTMy9wyv/NoMIj jZwWr5knrYJn7nYiMgcc0+GCGsALOfwKCqsYscfhA6KoHmkkLxvyW/xH1e5uIUPT S3h6SDKzarTYfA5rTkxY0OD+ZacYrxGsXSvnakBWxqR4IW82XDIdWom66HteKJPE 6bDFTnzOsdDpmTVJZVhZ2WljxcKrgQW95q8tNS3TuQOYHQNmtD4LnV11Zjvwwt5w pEL9QghiCfLg76Yf5pOafvifK+LYCCdteCYygImPBWc2Ih0XJX5KdV7fhTIPbSyS iaH/4bVgec7Sdkt8/bgW5qCyd/nXJpqx4KV9akp6lBMfEQtSiZ5fGOzAMtAOTaLS k03UC3H983uAVHzwD4d+nb5yeKm/0Xi7vxx9Lz9gCncyo+V6Oj2FefB38wkgO1Ou wu+CpqeOSBTjEEwR2HoL3Js6/cFKqGtP9RwsJC0eimBhJNNntr8= =9e9M -----END PGP SIGNATURE----- Merge tag 'cpufreq-arm-updates-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm Pull CPUFreq Arm updates for 7.3 from Viresh Kumar: "- Minor fixes / cleanups in cpufreq drivers (Dan Carpenter, Guru Das Srinagesh, Haoxiang Li, Karl Mehltretter, Sasha Finkelstein, and Pan Chuang). - Fix cpufreq table creation and bios_limits() callback in the Rust bindings (Priya Bala Govindasamy). - Add IPQ5210 support to qcom-nvmem driver (Varadarajan Narayanan)." * tag 'cpufreq-arm-updates-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm: cpufreq: imx6q: fix out-of-bounds write when probed more than once cpufreq: imx6q: fix devres accumulation across driver rebind rust: cpufreq: Fix temporary write in Registration::bios_limit_callback rust: cpufreq: Add CPUFREQ_TABLE_END as last table entry in TableBuilder::to_table cpufreq: apple-soc: Calculate frequency as a 64-bit value cpufreq: spear: Fix an IS_ERR() vs NULL bug in spear1340_set_cpu_rate() cpufreq: brcmstb-avs: Remove redundant dev_err() rust: rcpufreq_dt: use vertical import style cpufreq: apple-soc: Fix OPP table cleanup cpufreq: qcom-nvmem: Add IPQ5210 support |
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|
Karl Mehltretter
|
8c3afcf27f |
cpufreq: imx6q: fix out-of-bounds write when probed more than once
imx6_soc_volt is allocated fresh on every probe, sized to the number of
ARM OPPs:
imx6_soc_volt = devm_kcalloc(cpu_dev, num, sizeof(*imx6_soc_volt),
GFP_KERNEL);
but it is filled through soc_opp_count, which has static storage and is
never reset. A second bind after an unbind keeps indexing from where the
first one stopped, and writes past the end of the new array.
Unbinding and rebinding the driver on qemu's mcimx6ul-evk, under KASAN:
BUG: KASAN: slab-out-of-bounds in imx6q_cpufreq_probe+0x3b0/0xa34
Write of size 4 at addr c5e90480 by task binder/73
imx6q_cpufreq_probe from platform_probe+0x88/0xe4
platform_probe from really_probe+0x108/0x384
bind_store from kernfs_fop_write_iter+0x1b4/0x28c
The write lands one u32 past the end of the allocation.
soc_opp_count is only read a few lines below the loop that fills it, so it
never needed static storage. Make it a local.
Fixes:
|
||
|
Karl Mehltretter
|
22c23c72c3 |
cpufreq: imx6q: fix devres accumulation across driver rebind
imx6_soc_volt is allocated with devm_kcalloc(cpu_dev, ...), where cpu_dev
is the CPU device from get_cpu_device(0). That device is never unbound, so
its devres list is never released, and imx6q_cpufreq_remove() does not free
the array either. Every probe therefore adds an allocation that stays for
the lifetime of the system.
Allocate against the platform device instead. Its devres is released when
the driver is unbound, which is exactly the lifetime the array wants:
imx6q_set_target() reads it, and nothing may reach that after
cpufreq_unregister_driver().
That makes the array actually go away on unbind, so also clear the
file-scope pointer in remove and on the failed-probe path, rather than
leave it pointing at memory devres is about to release.
Tested by rebinding the driver on qemu's mcimx6ul-evk.
Fixes:
|
||
|
Christian Loehle
|
df5a1d4a8c |
ACPI: CPPC: Reject desired_perf reads on _CPC revision 4+
When CPPC feedback counters cannot provide a usable sample, cppc-cpufreq
calls cppc_get_desired_perf() because some platforms repurpose Desired
Performance to report actual delivered performance.
ACPI 6.5 defines _CPC revision 3 and lists Read/Write as the Optional
Attribute of Desired Performance. ACPI 6.6 advances _CPC to revision 4 and
lists only Write, so invoking that workaround for revision 4 or later would
require a register read that the interface no longer specifies.
Make cppc_get_desired_perf() return -EOPNOTSUPP for _CPC revision 4 or
later. Use the revision retained in the per-CPU CPC descriptor rather than
the platform-wide FADT revision.
The _CPC revision may still not accurately describe the implemented
register semantics. If a nominally revision 3 platform implements a
non-readable Desired Performance register, a read may return zero and make
cppc_cpufreq_get_rate() report 0 kHz. Treat a zero read as unusable and
fall back to the cached OSPM request, just as for a failed read.
Fixes:
|
||
|
Rafael J. Wysocki
|
eb49643e66 |
amd-pstate 7.3 content (07/30/26)
* Changes for dynamic EPP * Adjustments to the bios min perf feature * Fixes to kernel doc -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEECwtuSU6dXvs5GA2aLRkspiR3AnYFAmprwUITHHN1cGVybTFA a2VybmVsLm9yZwAKCRAtGSymJHcCdobfD/9dkDCf6Go6vAt31Z1PnnJfPKtl7+2n CzwKu5+Fx+/4nsJ/MiiDtQ5gJ6q9Pn0NA05vm6fuLhXznzAoWYExi+b3YRNWttyh 0om7PZfrLWS6oCYl+DC/zu6cL8TBZJweqAEYcNBxRKAKXP5Icgpefrpj+lOW5asr YSl9b1cU2NboUksfWqfRGDmDCwKMKsBuZGlEMV8DgpnVJo0A2t8UmXCesUmd+hzP LOupRKZlVUkYHeHOGuRnwSkKMoSyzcJjW7oCbkZfLOTjM2KXZ3AEadyNG257H4U5 PqGSA56EkDqycBuQzZKE6Ayz/mCWmNrB+jd/RjViARVNkUdNy+S8qafVuHEwG0RB L5rWef76BKvhK1dAVZ512cidWEfp4Rw2iDaF7o4LUDysCmThAI2VZ+e6uxs6We4R 2Qe8l6KIxXt9bmf704q9jo62DKzdIve9PV5Y/WRcBft3NqvNmIu/VReIm29LqdDq 3cYWODH3Lg0kVwaB1jY5n8XAEThhEnB1T4iVWJyfeAX+F4WuSRslM/8sJgdZG3uf kIkCbzMa3z5y7cASQCKdfQDzaxf6Vw7oX8c30UzZE5+PYcTuWuLQl6fclddXj1W7 TEYG1NskvtgETTLA1QXb5JTJYNcGHvUwd+Ng5O7robQ7QSaUGvIw4uHUsLQXG9DI JvjxN/NNdJTRQg== =8o8O -----END PGP SIGNATURE----- Merge tag 'amd-pstate-v7.3-2026-07-30' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/superm1/linux Pull amd-pstate 7.3 content (07/30/26) from Mario Limonciello: "* Changes for dynamic EPP * Adjustments to the bios min perf feature * Fixes to kernel doc" * tag 'amd-pstate-v7.3-2026-07-30' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/superm1/linux: cpufreq/amd-pstate: Document missing kernel-doc members cpufreq/amd-pstate-ut: Add unit test for CPPC Performance Priority cpufreq/amd-pstate-ut: Add unit test for "dynamic" EPP mode cpufreq/amd-pstate: Reduce the scope of exported symbols Documentation/amd-pstate: Update dynamic_epp documentation with new behavior cpufreq/amd-pstate: Remove "amd_dynamic_epp" cmdline and "dynamic_epp" sysfs cpufreq/amd-pstate: Add dynamic EPP as an "energy_performance_preference" mode cpufreq/amd-pstate: Extract platform profile to EPP conversion into a helper cpufreq/amd-pstate: Remove the defensive check for bios_min_perf cpufreq/amd-pstate: Set min_limit_freq based on bios_min_perf |
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Rafael J. Wysocki
|
9e4cb21f29 |
cpufreq: intel_pstate: Adjust policy->cur in active mode to policy
Since arch_freq_get_on_cpu() on x86 falls back to cpufreq_quick_get(), which effectively causes policy->cur to be returned when intel_pstate is used, adjust intel_pstate_set_policy() to set policy->cur to reflect the P-state that is actually going to be requested in the "performance" policy case instead of setting it to policy->min (which is confusing because it causes scaling_cur_freq to show the minimum frequency while the CPU is likely running at the maximum one). For this purpose, rearrange intel_pstate_set_policy() to handle the HWP case separately, to avoid calling intel_pstate_set_pstate() pointlessly with HWP enabled, and use the observation that with HWP enabled in the active mode, the utilization update hook is only needed when HWP boost is used and the policy is not "performance". Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Doug Smythies <dsmythies@telus.net> Tested-by: Doug Smythies <dsmythies@telus.net> Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Link: https://patch.msgid.link/5144014.31r3eYUQgx@rafael.j.wysocki |
||
|
Rafael J. Wysocki
|
53d08ba34e |
Merge back cpufreq material for 7.3
* pm-cpufreq: cpufreq/amd-pstate: handle missing policy in dynamic EPP callbacks cpufreq/amd-pstate: Cache the firmware programmed EPP value cpufreq/amd-pstate: Toggle auto_sel in active mode on shared memory systems cpufreq/amd-pstate: Fix EPP return type and handle errors during initialization cpufreq: amd-pstate-ut: Skip tests when amd-pstate driver is not active cpufreq: schedutil: Replace sprintf() with sysfs_emit() in sysfs show cpufreq: schedutil: Fix self-contradictory comment in sugov_iowait_apply() Documentation: admin-guide: cpufreq: fix sampling_rate example command cpufreq: intel_pstate: Move two functions closer to callers cpufreq: intel_pstate: Consolidate frequency values computation cpufreq: intel_pstate: Introduce intel_pstate_update_freq_limits() cpufreq: intel_pstate: Fix setting minimum P-state at init time cpufreq: intel_pstate: Rename INTEL_PSTATE_HWP_BROADWELL cpufreq: intel_pstate: Simplify HWP handling on Broadwell cpufreq: intel_pstate: Adjust the .adjust_perf() driver callback cpufreq: intel_pstate: Rearrange checks in hybrid_get_cost() |
||
|
Gary Guo
|
0deeb4222d |
rust: driver: remove $module_table_name from module_device_table
Wrap the generated code in a `const _: ()` block to avoid symbol conflict. This removes the need of creating a new identifier. Signed-off-by: Gary Guo <gary@garyguo.net> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://patch.msgid.link/20260629-id_info-v2-7-56fccbe9c5ef@garyguo.net [ Consider the serdev code merged in the meantime. - Danilo ] Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
||
|
David Vernet
|
d06c75c22d |
cpufreq/amd-pstate: Document missing kernel-doc members
kernel-doc warns about five undescribed members in amd-pstate.h: union perf_cached's @val and struct amd_cpudata's @raw_epp, @current_profile, @ppdev and @profile_name. Describe them. Signed-off-by: David Vernet <void@manifault.com> Acked-by: Mario Limonciello (AMD) <superm1@kernel.org> Link: https://lore.kernel.org/r/20260728073150.54964-2-void@manifault.com Signed-off-by: Mario Limonciello <superm1@kernel.org> |
||
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K Prateek Nayak
|
d9a3b95f37 |
cpufreq/amd-pstate-ut: Add unit test for CPPC Performance Priority
Add a unit test for CPPC Performance Priority that modifies the floor perf and confirms if the modification was successful similar to the energy_performance_preference unit test. On platforms that do not support X86_FEATURE_CPPC_PERF_PRIO, the test returns -EOPNOTSUPP and amd_pstate_ut_check_floor_freq is marked as "skipped". Suggested-by: Kalpana Shetty <kalpana.shetty@amd.com> Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org> Signed-off-by: K Prateek Nayak <kprateek.nayak@amd.com> Link: https://lore.kernel.org/r/20260727072056.1248-10-kprateek.nayak@amd.com Signed-off-by: Mario Limonciello <superm1@kernel.org> |
||
|
K Prateek Nayak
|
d61c1ad390 |
cpufreq/amd-pstate-ut: Add unit test for "dynamic" EPP mode
Extend the EPP unit test to cover the "dynamic" epp mode. Since "dynamic_epp" is no longer a system-wide toggle, remove the legacy "dynamic_epp" bits from the unit test. Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org> Signed-off-by: K Prateek Nayak <kprateek.nayak@amd.com> Link: https://lore.kernel.org/r/20260727072056.1248-9-kprateek.nayak@amd.com Signed-off-by: Mario Limonciello <superm1@kernel.org> |
||
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K Prateek Nayak
|
047e65218d |
cpufreq/amd-pstate: Reduce the scope of exported symbols
Symbols exported by amd-pstate.c are ever only needed for amd-pstate-ut. Introduce EXPORT_SYMBOL_FOR_PSTATE_UT() to export these symbols selectively to "amd-pstate-ut" namespace as opposed to all GPL modules. No functional changes intended. Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org> Signed-off-by: K Prateek Nayak <kprateek.nayak@amd.com> Link: https://lore.kernel.org/r/20260727072056.1248-8-kprateek.nayak@amd.com Signed-off-by: Mario Limonciello <superm1@kernel.org> |
||
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K Prateek Nayak
|
32692fcf61 |
cpufreq/amd-pstate: Remove "amd_dynamic_epp" cmdline and "dynamic_epp" sysfs
Since dynamic_epp has been converted to an "energy_performance_preference", toggling the feature via the sysfs file or the kernel cmdline is now redundant. Remove the sysfs file and the "amd_dynamic_epp" cmdline and only depend on "energy_performance_preference" to toggle dynamic_epp. Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org> Signed-off-by: K Prateek Nayak <kprateek.nayak@amd.com> Link: https://lore.kernel.org/r/20260727072056.1248-6-kprateek.nayak@amd.com Signed-off-by: Mario Limonciello <superm1@kernel.org> |
||
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K Prateek Nayak
|
b7294b6275 |
cpufreq/amd-pstate: Add dynamic EPP as an "energy_performance_preference" mode
Convert the global "dynamic_epp" toggle into a per-CPU "energy_performance_preference" mode "dynamic" that allows toggling the functionality of "dynamic_epp" at a per-CPU level. Instead of being a system-wide toggle, users can opt into the functionality of dynamic EPP on a per-CPU basis by switching to the powersave governor and selecting the "dynamic" mode from the available performance preferences. Unlike the previous implementation that had to check for driver mode before toggling on the functionality, block writes to certain sysfs files, potentially disallow policy change, etc. the per-CPU toggle fits naturally into the intended design and provides more granular control to the user. The dynamic_epp file is now redundant as the option to toggle it on is controlled via energy_performance_preference, and the dynamic_epp file will be removed in the subsequent commit. Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org> Signed-off-by: K Prateek Nayak <kprateek.nayak@amd.com> Link: https://lore.kernel.org/r/20260727072056.1248-5-kprateek.nayak@amd.com Signed-off-by: Mario Limonciello <superm1@kernel.org> |
||
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K Prateek Nayak
|
77b049427b |
cpufreq/amd-pstate: Extract platform profile to EPP conversion into a helper
Avoid duplication by extracting the switch case that derives EPP based on platform profile into the amd_pstate_get_epp_from_platform_profile() helper. No functional changes intended. Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org> Signed-off-by: K Prateek Nayak <kprateek.nayak@amd.com> Link: https://lore.kernel.org/r/20260727072056.1248-4-kprateek.nayak@amd.com Signed-off-by: Mario Limonciello <superm1@kernel.org> |
||
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K Prateek Nayak
|
0e85027801 |
cpufreq/amd-pstate: Remove the defensive check for bios_min_perf
Initialization of bios_min_perf (BIOS Requested CPU Min Freq.) only succeeds when the driver init finds the CPPC_REQ MSRs to have all 0s except for MIN_PERF bits. A kexec puts the driver through the suspend path which, although resets the min_perf back to bios_min_perf, keeps the rest of the CPPR_REQ intact with the last value at the time of suspend. The defensive check for bios_min_perf exists to prevent the min perf from last CPPC_REQ being incorrectly considered as bios_min_perf when a kexec switches from an older kernel running the version of driver which is not aware of bios_min_perf to a newer one. This scenario is extremely unlikely and Mario suggested it is better to simplify the initialization rather than complicating the suspend resume paths. Drop the defensive check for bios_min_perf initialization and add a debug message to dump the BIOS Requested Min Freq. to console leaving enough breadcrumbs for debug if a situation so arises. Suggested-by: Mario Limonciello <mario.limonciello@amd.com> Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org> Signed-off-by: K Prateek Nayak <kprateek.nayak@amd.com> Link: https://lore.kernel.org/r/20260727072056.1248-3-kprateek.nayak@amd.com Signed-off-by: Mario Limonciello <superm1@kernel.org> |
||
|
K Prateek Nayak
|
5c3ecf36d2 |
cpufreq/amd-pstate: Set min_limit_freq based on bios_min_perf
amd_pstate_update_min_max_limit() sets the min_limit_perf to the
nominal_perf to avoid frequency throttling when the system is idling.
This was found to be an ideal default but is suboptimal for users who
have profiled their workload at different operating frequencies and have
configured the optimal idling frequency via bios_min_perf.
Use the bios_min_perf (if configured) as the min_limit_perf when running
with performance governor. In absence of bios_min_perf, continue using
nominal_perf as the default min_limit_perf to avoid throttling.
Fixes:
|
||
|
Abdun Nihaal
|
d5f8e5f604 |
cpufreq: powernow-k8: Fix possible memory leak in powernowk8_cpu_init()
The memory allocated for data->powernow_table inside
powernow_k8_cpu_init_acpi() or find_psb_table() is not freed in one of
the error paths in powernowk8_cpu_init(). Fix that by adding a kfree().
Fixes:
|
||
|
Rafael J. Wysocki
|
7f464fb229 |
amd-pstate content for 7.3 (07/22/26)
* Avoid running unit tests without amd-pstate * Fixes for EPP on shared memory systems * Fixes for dynamic EPP callbacks * Avoid loading on guests * Allow lowest nonlinear == minimum freq -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEECwtuSU6dXvs5GA2aLRkspiR3AnYFAmphGlcTHHN1cGVybTFA a2VybmVsLm9yZwAKCRAtGSymJHcCdkotD/wMShVE4ozDlaNXjQq2LdQB4LK/hbvy A4Z1BzHVn8ljw8eCkyZB/sB4pjNA0aXnXtTSkimbvwkiQhYbOqoNF5YFA1JWcqNK IjhUDTXbs+mwVDIU8aRuynkioGa1+jMPlLOExUkngCMTdraftPRUfSIH5I7cQ80q +qlSMJvhT2S3AuZYhy+HBKJa1Hbl2i36viMuxqmSicz8AwKXEHnZ2EFaf2u+ssat keF9/S2jvD9g8B/jxiVsK3zCxlH3RBwDQGLWRG7DaKSHLOugLV8BHtv37cNSYyiq e+TTSOeziUi9A8rGl39WYbIj5qUwrYvJ7c8aLeZ28RT3zS0IlqSrkFGeAw2XfInH /Kp9khIQdI09Jv5RIKsDrEjCws8zGB9SghxxnEDasagIfCoj4RIEAOvZeBdjvPr+ BMWYe5XLw7VzJIVX6bCBYC3QOld/2YZjV/duu611Cs9ijqYoxWuF9uM/Eorqx889 aj1kDcy/4PtkBM2CwhU6PnM2zwAQr45jIQ9Nc2Scm5PkBc8NQvYtO1L2qRRCoI8s khfcywX4iOnqoNswskji5c8N9gQUh/eTChOhgJoMkYRZv+yO0IcpDoQpUJUAz1wO BcTC0ZPESvNb/tAbm6WZFPoxVm33CwnGQr7WdOArx4K/ZyKvC25D/sfzJth/BSI7 g+uEfZuopnuxSw== =rxGv -----END PGP SIGNATURE----- Merge tag 'amd-pstate-v7.3-2026-07-22' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/superm1/linux Merge amd-pstate content for 7.3 (07/22/26) from Mario Limonciello: "* Avoid running unit tests without amd-pstate * Fixes for EPP on shared memory systems * Fixes for dynamic EPP callbacks * Avoid loading on guests * Allow lowest nonlinear == minimum freq" * tag 'amd-pstate-v7.3-2026-07-22' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/superm1/linux: (923 commits) cpufreq/amd-pstate: handle missing policy in dynamic EPP callbacks cpufreq/amd-pstate: Cache the firmware programmed EPP value cpufreq/amd-pstate: Toggle auto_sel in active mode on shared memory systems cpufreq/amd-pstate: Fix EPP return type and handle errors during initialization cpufreq: amd-pstate-ut: Skip tests when amd-pstate driver is not active cpufreq/amd-pstate: Prevent the driver from loading on unsupported hardware cpufreq/amd-pstate: Loosen requirement on lowest nonlinear frequency != min freq Linux 7.2-rc4 Revert "drm/amd/display: Restore 5s vbl offdelay for NV3x+ DGPUs" drm/amd/display: check GRPH_FLIP status before sending event drm/amd/display: consolidate DCN vblank/flip handling onto vupdate_no_lock drm/amd: Create a device link between APU display and XHCI devices drm/amd/display: wire DCN42B mcache programming callback drm/amd/display: set new_stream to NULL after release drm/amd/display: Force PWM backlight on Lenovo Legion 5 15ARH05 drm/amdkfd: free MQD managers on DQM init failures drm/amdgpu/ttm: Consider concurrent VM flushes for buffer entities drm/amd/pm/smu7: Fix AC/DC switch notification drm/amdgpu: Disable PCIe dynamic speed switching on Ryzen Pinnacle Ridge drm/amdgpu: always emit the job vm fence ... |
||
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Rafael J. Wysocki
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601eecdeee |
amd-pstate fixes for 7.2 (7/22/26)
* Fix a case blocking amd-pstate from binding when lowest nonlinear freq == minimum freq * Stop trying to bind in guests -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEECwtuSU6dXvs5GA2aLRkspiR3AnYFAmphGcUTHHN1cGVybTFA a2VybmVsLm9yZwAKCRAtGSymJHcCdpQgEADZ9o0b+2twgu3oQn2HhuDsdM6unEgt U03liFAdH/+dTRjRuZ/IMu57+uoN4JC7dnYsqpmfvZebnAU/tjWwHK31sJzmvxj2 /j3H9ATtZNyfBpwzUlhP0x2spbjxGM92xfyOxlpcLuBCApDMJ4G8tp30r/ipVBpp MyWLDxolHApZTTrHdWhIfkio94mQ2Q5PX/orggTUOhgKE0BH4KKOpmr5ECXiAalg h30J7sKuhEiuWD+3/WxS0ymwKeDhIn2qemZ40F5gx8JXevqaq5xkVtD5Kg+YifDx DBPq1/kAl+CIONmJdZRJZquuaTl6jI72XVqPMeUcvIYRYS0lxy8P60fLq81iSa7y hvCJW0AZ0X/FXTlTQaFrmXuYA69K7lvw/FfCEJSQNMw05AEYMtSrTz5QY/0F/hZ/ 3Znyj915KwUa/6KfCQyIVrSYEREc7ujypAQFJASM8a44LYnLe/87dVBKvsV5/jwm 4A43ZyYFrzSAj9P2KJcRi7qFtePhxTaUjQn7glJqjijtY1QWoQpylhvpfD/4fEfJ 5aSMojk7sdCITAz86KbIv1SPwO6gzE7kHWkCggHmVlK7oY4Zn7cJCnAEc+i+LQRu 6rnU+J9Xfr3vab30WsMusxzrvAYtxVo4yqpHVUXHgKbfl/apO6CO7COelWLj5uxx nt2SdJ6bpz9czA== =XjRG -----END PGP SIGNATURE----- Merge tag 'amd-pstate-v7.2-2026-07-22' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/superm1/linux Merge amd-pstate fixes for 7.2 (7/22/26) from Mario Limonciello: "* Fix a case blocking amd-pstate from binding when lowest nonlinear freq == minimum freq * Stop trying to bind in guests" * tag 'amd-pstate-v7.2-2026-07-22' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/superm1/linux: cpufreq/amd-pstate: Prevent the driver from loading on unsupported hardware cpufreq/amd-pstate: Loosen requirement on lowest nonlinear frequency != min freq |
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Sasha Finkelstein
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391b4b1d54 |
cpufreq: apple-soc: Calculate frequency as a 64-bit value
The current frequency calculation is done in 32 bit, causing problems if run on a future SoC that can boost higher than 4.2GHz. Ideally, we should use a true u64 instead of unsigned long and "knowning" that this only runs on 64 bit machines, but the core code uses ulong everywhere, so this should be good enough. Signed-off-by: Sasha Finkelstein <k@chaosmail.tech> Reviewed-by: Joshua Peisach <jpeisach@ubuntu.com> Reviewed-by: Zhongqiu Han <zhongqiu.han@oss.qualcomm.com> Reviewed-by: Janne Grunau <j@jannau.net> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> |
||
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Shuwei Wu
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736d655c84 |
cpufreq: dt-platdev: Add SpacemiT K1 SoC to the allowlist
Add the compatible string for supporting the generic cpufreq driver on the SpacemiT K1 SoC. Signed-off-by: Shuwei Wu <shuwei.wu@mailbox.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Yixun Lan <dlan@kernel.org> Tested-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Tested-by: Milan P. Stanić <mps@arvanta.net> Tested-by: Gong Shuai <gsh517025@gmail.com> # OrangePi-RV2 Link: https://patch.msgid.link/20260626-shadow-deps-v4-1-bba9831f2f1d@mailbox.org Signed-off-by: Yixun Lan <dlan@kernel.org> |
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EDAMAMEX
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39c0cf62fc |
cpufreq/amd-pstate: handle missing policy in dynamic EPP callbacks
cpufreq_cpu_get() returns NULL when no cpufreq policy is associated with the requested CPU, for example because the CPU is offline or the policy has already been torn down. Both amd_pstate_power_supply_notifier() and amd_pstate_profile_set() acquire a policy via cpufreq_cpu_get() and then pass that pointer to amd_pstate_get_balanced_epp() and amd_pstate_set_epp(), which dereference it unconditionally. A racing CPU hotplug or driver teardown can therefore lead to a NULL pointer dereference on either of these dynamic EPP paths. The third cpufreq_cpu_get() caller in this file, amd_pstate_verify(), already handles the NULL case. Bring the two new callers in line with that pattern: return NOTIFY_OK from the power-supply notifier (matching the other "nothing to do" exits) and -ENODEV from amd_pstate_profile_set() (the usual cpufreq error for a missing CPU policy). Found by code inspection; not tested on hardware. Fixes: |
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Marco Scardovi
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d0f4c1c8cb |
cpufreq/amd-pstate: Cache the firmware programmed EPP value
At CPU EPP initialization, the private cpudata structure is allocated via kzalloc, which means cpudata->cppc_req_cached is initialized to 0. This makes the default cached EPP value 0 (AMD_CPPC_EPP_PERFORMANCE). When initializing a system that defaults to performance EPP, the driver attempts to configure the EPP via amd_pstate_set_epp(). Because the requested EPP (0) matches the uninitialized cached value (0), the cache guard check triggers, and the driver skips writing to the hardware. Cache the firmware-programmed default EPP value in cppc_req_cached during CPU EPP initialization. This saves on an unnecessary reprogramming later when the EPP is first set. Assisted-by: Antigravity:gemini-3.5-flash Reviewed-by: K Prateek Nayak <kprateek.nayak@amd.com> Tested-by: K Prateek Nayak <kprateek.nayak@amd.com> Signed-off-by: Marco Scardovi <scardracs@disroot.org> Link: https://lore.kernel.org/r/20260609073042.81275-4-scardracs@disroot.org Signed-off-by: Mario Limonciello <superm1@kernel.org> |
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Marco Scardovi
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9dfd13f80c |
cpufreq/amd-pstate: Toggle auto_sel in active mode on shared memory systems
On shared memory systems, the EPP configuration path (handled via
cppc_set_epp_perf()) is responsible for toggling on the CPPC autonomous
selection register (auto_sel).
Currently, shmem_init_perf() returns early without doing any of the auto_sel
configuration steps if cppc_state is AMD_PSTATE_ACTIVE. This skips enabling
auto_sel, leaving the CPU in non-autonomous mode.
Remove the early return check in shmem_init_perf() when cppc_state is
AMD_PSTATE_ACTIVE. Toggling auto_sel is necessary for the active mode on
shared memory systems to function based on the ACPI spec for CPPC v2 and
below.
Fixes:
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||
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Marco Scardovi
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57476909c3 |
cpufreq/amd-pstate: Fix EPP return type and handle errors during initialization
Currently, the EPP getter helper functions (msr_get_epp, shmem_get_epp, and
the static call wrapper amd_pstate_get_epp) return u8 or s16. This makes it
difficult to correctly propagate negative error values returned by the
underlying MSR read or CPPC helpers (such as rdmsrq_on_cpu or
cppc_get_epp_perf).
Modify the return type of these functions to int, allowing them to return
negative error codes properly.
Additionally, in amd_pstate_epp_cpu_init(), fetch the firmware-programmed
default EPP value and validate it before assigning it to the EPP variables.
If amd_pstate_get_epp() returns an error code, propagate the error and abort
the CPU initialization to prevent subsequent configuration failures.
Fixes:
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||
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Qianheng Peng
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8d31bb1451 |
cpufreq: amd-pstate-ut: Skip tests when amd-pstate driver is not active
The crash issue may occur when modprobe amd_pstate_ut on intel platform.
amd_pstate_ut: 1 amd_pstate_ut_acpi_cpc_valid success!
amd_pstate_ut: 2 amd_pstate_ut_check_enabled success!
BUG: kernel NULL pointer dereference, address: 0000000000000080
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0
Oops: 0000 [#1] SMP NOPTI
CPU: 0 PID: 20300 Comm: modprobe
Kdump: loaded Tainted: G O 6.6.0-0010.rc1.ctl4.x86_64 #1
Hardware name: FiberHome R2200 V5/Xeon Boards, BIOS 3.1a 02/24/2020
RIP: 0010:amd_pstate_ut_check_perf+0x141/0x280 [amd_pstate_ut]
Call Trace:
<TASK>
amd_pstate_ut_init+0x1b/0xff0 [amd_pstate_ut]
? __pfx_amd_pstate_ut_init+0x10/0x10 [amd_pstate_ut]
do_one_initcall+0x42/0x2e0
? kmalloc_trace+0x26/0x90
do_init_module+0x60/0x240
__se_sys_init_module+0x185/0x1c0
do_syscall_64+0x62/0x190
entry_SYSCALL_64_after_hwframe+0x76/0x7e
</TASK>
Add state detection to amd pstate driver to prevent amd_pstate_ut driver
from testing on non-AMD platforms.
Fixes:
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||
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Rong Zhang
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08fc1e7b31 |
cpufreq/amd-pstate: Prevent the driver from loading on unsupported hardware
X86_FEATURE_HW_PSTATE indicates if the processor supports frequency scaling or not. Without it, the driver is unusable and thus will not load. This check also prevents the driver from loading in guests and thus not confuse users with misleading prints. Reviewed-by: Michael Kelley <mhklinux@outlook.com> Tested-by: Michael Kelley <mhklinux@outlook.com> Acked-by: Mario Limonciello (AMD) <superm1@kernel.org> Reviewed-by: K Prateek Nayak <kprateek.nayak@amd.com> Tested-by: K Prateek Nayak <kprateek.nayak@amd.com> Acked-by: Borislav Petkov (AMD) <bp@alien8.de> Signed-off-by: Rong Zhang <i@rong.moe> Link: https://lore.kernel.org/r/20260722-amd-pstate-vm-v4-1-d6607d9e9d9a@rong.moe Signed-off-by: Mario Limonciello <superm1@kernel.org> |
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Mario Limonciello
|
6842427bf2 |
cpufreq/amd-pstate: Loosen requirement on lowest nonlinear frequency != min freq
This requirement was introduced by commit
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Christian Loehle
|
9753c0ab89 |
cpufreq: cppc: Sanitize lockless policy limit snapshots
cppc_cpufreq_update_perf_limits() reads policy->min and policy->max
without holding the policy lock. The cpufreq core updates those fields
with separate stores, so a reader can observe the old minimum together
with the new maximum and construct MIN_PERF greater than MAX_PERF.
Read both fields once and, if the lockless snapshot is inconsistent,
reduce the minimum to the observed maximum. This matches the conservative
correction used by cpufreq_driver_resolve_freq() and ensures that CPPC
never receives an inverted limit pair.
Fixes:
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||
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Christian Loehle
|
11055a46f3 |
ACPI: CPPC: Check all controls for fast switching
ACPI 6.2, Section 6.2.11.2 permits _CPC registers to use flexible
address spaces. Linux advertises that capability through _OSC and parses
the address space of each _CPC register independently. A directly
accessible DESIRED_PERF combined with PCC-backed limits is therefore a
valid configuration.
cppc_allow_fast_switch() only checks DESIRED_PERF, although the fast-switch
callback passes DESIRED_PERF, MIN_PERF and MAX_PERF to cppc_set_perf(). If
a limit uses PCC, that function can sleep while called from scheduler
context.
Allow fast switching only when every supported control used by the
callback has an address space already accepted for fast access. Check the
complete policy domain, including initialized CPUs that are currently
offline and may later become the policy's managing CPU.
Fixes:
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||
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Juergen Gross
|
e8caa0abfb |
cpufreq: Stop using 32-bit MSR interfaces
The 32-bit MSR interfaces rdmsr() and wrmsr() are planned to be removed. Use the related 64-bit variants instead. Signed-off-by: Juergen Gross <jgross@suse.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Reviewed-by: Zhongqiu Han <zhongqiu.han@oss.qualcomm.com> Cc: Rafael J. Wysocki <rafael@kernel.org> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: linux-pm@vger.kernel.org Link: https://patch.msgid.link/20260703112445.1763078-1-jgross@suse.com |
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Rafael J. Wysocki
|
f08b21ef54 | Merge back cpufreq material for 7.3 | ||
|
Rafael J. Wysocki
|
3ff72cac73 |
cpufreq: intel_pstate: Move two functions closer to callers
Move intel_pstate_set_pstate() and intel_pstate_set_min_pstate() closer to their first callers. No intentional functional impact. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> [ rjw: Changelog adjustment ] Link: https://patch.msgid.link/3433588.44csPzL39Z@rafael.j.wysocki Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
||
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Rafael J. Wysocki
|
39b28ab6e9 |
cpufreq: intel_pstate: Consolidate frequency values computation
Update intel_pstate_get_cpu_pstates() to use intel_pstate_update_freq_limits() for computing the max and turbo frequency values in all cases, including non-hybrid HWP and HWP disabled. No intentional functional impact. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/3059329.e9J7NaK4W3@rafael.j.wysocki |
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Rafael J. Wysocki
|
773e484787 |
cpufreq: intel_pstate: Introduce intel_pstate_update_freq_limits()
Introduce a new helper function, intel_pstate_update_freq_limits(), for updating the max and turbo frequency values for the given CPU after updating the corresponding P-states. Use it in intel_pstate_get_hwp_cap() and intel_pstate_get_cpu_pstates(), in the latter case instead of the direct updates of the max and turbo frequency values in intel_pstate_hybrid_hwp_adjust(). No intentional functional impact. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/2277328.irdbgypaU6@rafael.j.wysocki |
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Rafael J. Wysocki
|
db53c573d3 |
cpufreq: intel_pstate: Fix setting minimum P-state at init time
If HWP is enabled, writes to MSR_IA32_PERF_CTL have no effect,
so intel_pstate_get_cpu_pstates() should not attempt to call
intel_pstate_set_min_pstate() to set the minimum P-state for the
given CPU in that case.
Accordingly, remove the intel_pstate_set_min_pstate()
call from intel_pstate_get_cpu_pstates() and make both
intel_pstate_cpu_init() and intel_cpufreq_cpu_init() call
that function in their non-HWP code paths.
The HWP code path in intel_pstate_cpu_init() does not need to update
the current P-state of the CPU directly at all because it is taken
care of the processor automatically, but the HWP code path of
intel_cpufreq_cpu_init() should update it in principle to
initialize the DESIRED_PERF field in MSR_HWP_REQUEST. For this
purpose, make it call intel_cpufreq_hwp_update() and pass
the minimum P-state limit to it as the current target value along
with the current minimum and maximum limits.
Fixes:
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||
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Rafael J. Wysocki
|
12a7f1aa06 |
cpufreq: intel_pstate: Rename INTEL_PSTATE_HWP_BROADWELL
Since the only role of INTEL_PSTATE_HWP_BROADWELL is to indicate that hybrid HWP should not be used, rename it to INTEL_PSTATE_HWP_NOT_HYBRID. No functional impact. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/3431755.44csPzL39Z@rafael.j.wysocki |
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Rafael J. Wysocki
|
76d70f65e3 |
cpufreq: intel_pstate: Simplify HWP handling on Broadwell
After commit
|