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26 hoursMerge tag 'driver-core-6.17-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core Pull driver core updates from Danilo Krummrich: "debugfs: - Remove unneeded debugfs_file_{get,put}() instances - Remove last remnants of debugfs_real_fops() - Allow storing non-const void * in struct debugfs_inode_info::aux sysfs: - Switch back to attribute_group::bin_attrs (treewide) - Switch back to bin_attribute::read()/write() (treewide) - Constify internal references to 'struct bin_attribute' Support cache-ids for device-tree systems: - Add arch hook arch_compact_of_hwid() - Use arch_compact_of_hwid() to compact MPIDR values on arm64 Rust: - Device: - Introduce CoreInternal device context (for bus internal methods) - Provide generic drvdata accessors for bus devices - Provide Driver::unbind() callbacks - Use the infrastructure above for auxiliary, PCI and platform - Implement Device::as_bound() - Rename Device::as_ref() to Device::from_raw() (treewide) - Implement fwnode and device property abstractions - Implement example usage in the Rust platform sample driver - Devres: - Remove the inner reference count (Arc) and use pin-init instead - Replace Devres::new_foreign_owned() with devres::register() - Require T to be Send in Devres<T> - Initialize the data kept inside a Devres last - Provide an accessor for the Devres associated Device - Device ID: - Add support for ACPI device IDs and driver match tables - Split up generic device ID infrastructure - Use generic device ID infrastructure in net::phy - DMA: - Implement the dma::Device trait - Add DMA mask accessors to dma::Device - Implement dma::Device for PCI and platform devices - Use DMA masks from the DMA sample module - I/O: - Implement abstraction for resource regions (struct resource) - Implement resource-based ioremap() abstractions - Provide platform device accessors for I/O (remap) requests - Misc: - Support fallible PinInit types in Revocable - Implement Wrapper<T> for Opaque<T> - Merge pin-init blanket dependencies (for Devres) Misc: - Fix OF node leak in auxiliary_device_create() - Use util macros in device property iterators - Improve kobject sample code - Add device_link_test() for testing device link flags - Fix typo in Documentation/ABI/testing/sysfs-kernel-address_bits - Hint to prefer container_of_const() over container_of()" * tag 'driver-core-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: (84 commits) rust: io: fix broken intra-doc links to `platform::Device` rust: io: fix broken intra-doc link to missing `flags` module rust: io: mem: enable IoRequest doc-tests rust: platform: add resource accessors rust: io: mem: add a generic iomem abstraction rust: io: add resource abstraction rust: samples: dma: set DMA mask rust: platform: implement the `dma::Device` trait rust: pci: implement the `dma::Device` trait rust: dma: add DMA addressing capabilities rust: dma: implement `dma::Device` trait rust: net::phy Change module_phy_driver macro to use module_device_table macro rust: net::phy represent DeviceId as transparent wrapper over mdio_device_id rust: device_id: split out index support into a separate trait device: rust: rename Device::as_ref() to Device::from_raw() arm64: cacheinfo: Provide helper to compress MPIDR value into u32 cacheinfo: Add arch hook to compress CPU h/w id into 32 bits for cache-id cacheinfo: Set cache 'id' based on DT data container_of: Document container_of() is not to be used in new code driver core: auxiliary bus: fix OF node leak ...
41 hoursMerge tag 'thermal-6.17-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull thermal control updates from Rafael Wysocki: "These update the thermal control sysfs interface and multiple thermal control drivers: - Convert EAGAIN into ENODATA in temp_show() to prevent user space from polling the sysfs file in vain after a failing O_NONBLOCK read under the assumption that the read would have blocked (Hsin-Te Yuan) - Add Wildcat Lake PCI ID to the int340x Intel processor thermal driver (Srinivas Pandruvada) - Add debugfs interface to override the temperature set by the firmware in the Intel platform temperature control (PTC) interface and add a new sysfs control attribute called thermal_tolerance to it (Srinivas Pandruvada) - Enable the stage 2 shutdown in the qcom-spmi-temp-alarm thermal driver and add support for more SPMI variants to it (Anjelique Melendez) - Constify the thermal_zone_device_ops structure where possible in several assorted thermal drivers (Christophe Jaillet) - Use the dev_fwnode() helper instead of of_fwnode_handle(), as it is more adequate, wherever possible in thermal drivers (Jiri Slaby) - Implement and document One-Time Programmable fuse support in the Rockchip thermal driver in order to increase the precision of the measurements (Nicolas Frattaroli) - Change the way the Mediatek LTVS thermal driver stores the initialization data sequence to support different sequences matching different platforms. Introduce mt7988 support with a new initialization sequence (Mason Chang) - Document the QCom TSens Milos Temperature Sensor DT bindings (Luca Weiss) - Add the fallback compatible string for MT7981 and MT8516 DT bindings (Aleksander Jan Bajkowski) - Add the compatible string for the Tegra210B01 SOC_THERM driver (Aaron Kling)" * tag 'thermal-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (23 commits) dt-bindings: thermal: tegra: Document Tegra210B01 dt-bindings: thermal: mediatek: Add fallback compatible string for MT7981 and MT8516 dt-bindings: thermal: qcom-tsens: document the Milos Temperature Sensor thermal/drivers/mediatek/lvts_thermal: Add mt7988 lvts commands thermal/drivers/mediatek/lvts_thermal: Add lvts commands and their sizes to driver data thermal/drivers/mediatek/lvts_thermal: Change lvts commands array to static const thermal/drivers/rockchip: Support reading trim values from OTP dt-bindings: thermal: rockchip: document otp thermal trim thermal/drivers/rockchip: Support RK3576 SoC in the thermal driver dt-bindings: rockchip-thermal: Add RK3576 compatible thermal/drivers/rockchip: Rename rk_tsadcv3_tshut_mode thermal: Use dev_fwnode() thermal: Constify struct thermal_zone_device_ops thermal/drivers/loongson2: Constify struct thermal_zone_device_ops thermal/drivers/qcom-spmi-temp-alarm: Add support for LITE PMIC peripherals thermal/drivers/qcom-spmi-temp-alarm: Add support for GEN2 rev 2 PMIC peripherals thermal/drivers/qcom-spmi-temp-alarm: Prepare to support additional Temp Alarm subtypes thermal/drivers/qcom-spmi-temp-alarm: Add temp alarm data struct based on HW subtype thermal/drivers/qcom-spmi-temp-alarm: Enable stage 2 shutdown when required thermal: sysfs: Return ENODATA instead of EAGAIN for reads ...
8 daysMerge back earlier thermal control updates for 6.17Rafael J. Wysocki
14 daysthermal/drivers/mediatek/lvts_thermal: Add mt7988 lvts commandsMason Chang
These commands are necessary to avoid severely abnormal and inaccurate temperature readings that are caused by using the default commands. Signed-off-by: Mason Chang <mason-cw.chang@mediatek.com> Link: https://lore.kernel.org/r/20250526102659.30225-4-mason-cw.chang@mediatek.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
14 daysthermal/drivers/mediatek/lvts_thermal: Add lvts commands and their sizes to ↵Mason Chang
driver data Add LVTS commands and their sizes to driver data in preparation for adding different commands. Signed-off-by: Mason Chang <mason-cw.chang@mediatek.com> Link: https://lore.kernel.org/r/20250526102659.30225-3-mason-cw.chang@mediatek.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
14 daysthermal/drivers/mediatek/lvts_thermal: Change lvts commands array to static ↵Mason Chang
const Change the LVTS commands array to static const in preparation for adding different commands. Signed-off-by: Mason Chang <mason-cw.chang@mediatek.com> Link: https://lore.kernel.org/r/20250526102659.30225-2-mason-cw.chang@mediatek.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-07-16thermal/drivers/rockchip: Support reading trim values from OTPNicolas Frattaroli
Many of the Rockchip SoCs support storing trim values for the sensors in factory programmable memory. These values specify a fixed offset from the sensor's returned temperature to get a more accurate picture of what temperature the silicon is actually at. The way this is implemented is with various OTP cells, which may be absent. There may both be whole-TSADC trim values, as well as per-sensor trim values. In the downstream driver, whole-chip trim values override the per-sensor trim values. This rewrite of the functionality changes the semantics to something I see as slightly more useful: allow the whole-chip trim values to serve as a fallback for lacking per-sensor trim values, instead of overriding already present sensor trim values. Additionally, the chip may specify an offset (trim_base, trim_base_frac) in degrees celsius and degrees decicelsius respectively which defines what the basis is from which the trim, if any, should be calculated from. By default, this is 30 degrees Celsius, but the chip can once again specify a different value through OTP cells. The implementation of these trim calculations have been tested extensively on an RK3576, where it was confirmed to get rid of pesky 1.8 degree Celsius offsets between certain sensors. Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com> Link: https://lore.kernel.org/r/20250610-rk3576-tsadc-upstream-v6-5-b6e9efbf1015@collabora.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-07-16thermal/drivers/rockchip: Support RK3576 SoC in the thermal driverYe Zhang
The RK3576 SoC has six TS-ADC channels: TOP, BIG_CORE, LITTLE_CORE, DDR, NPU and GPU. Signed-off-by: Ye Zhang <ye.zhang@rock-chips.com> [ported to mainline, reworded commit message] Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20250610-rk3576-tsadc-upstream-v6-3-b6e9efbf1015@collabora.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-07-16thermal/drivers/rockchip: Rename rk_tsadcv3_tshut_modeNicolas Frattaroli
The "v" version specifier here refers to the hardware IP revision. Mainline deviated from downstream here by calling the v4 revision v3 as it didn't support the v3 hardware revision at all. This creates needless confusion, so rename it to rk_tsadcv4_tshut_mode to be consistent with what the hardware wants to be called. Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20250610-rk3576-tsadc-upstream-v6-1-b6e9efbf1015@collabora.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-07-15thermal: Use dev_fwnode()Jiri Slaby (SUSE)
irq_domain_create_simple() takes fwnode as the first argument. It can be extracted from the struct device using dev_fwnode() helper instead of using of_node with of_fwnode_handle(). So use the dev_fwnode() helper. Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org> Cc: Amit Kucheria <amitk@kernel.org> Cc: Thara Gopinath <thara.gopinath@gmail.com> Cc: Rafael J. Wysocki <rafael@kernel.org> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Zhang Rui <rui.zhang@intel.com> Cc: Lukasz Luba <lukasz.luba@arm.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Jonathan Hunter <jonathanh@nvidia.com> Cc: linux-arm-msm@vger.kernel.org Cc: linux-tegra@vger.kernel.org Link: https://lore.kernel.org/r/20250611104348.192092-20-jirislaby@kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-07-15thermal: Constify struct thermal_zone_device_opsChristophe JAILLET
'struct thermal_zone_device_ops' are not modified in these drivers. Constifying these structures moves some data to a read-only section, so increases overall security, especially when the structure holds some function pointers. On a x86_64, with allmodconfig, as an example: Before: ====== text data bss dec hex filename 28116 5168 128 33412 8284 drivers/thermal/armada_thermal.o After: ===== text data bss dec hex filename 28244 5040 128 33412 8284 drivers/thermal/armada_thermal.o Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Frank Li <Frank.Li@nxp.com> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com> # For Armada Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Link: https://lore.kernel.org/r/5bba3bf0139e2418b306a0f9a2f1f81ef49e88a6.1748165978.git.christophe.jaillet@wanadoo.fr Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-07-15thermal/drivers/loongson2: Constify struct thermal_zone_device_opsChristophe JAILLET
'struct thermal_zone_device_ops' could be left unmodified in this driver. Constifying this structure moves some data to a read-only section, so increases overall security, especially when the structure holds some function pointers. This partly reverts commit 734b5def91b5 ("thermal/drivers/loongson2: Add Loongson-2K2000 support") which removed the const qualifier. Instead, define two different structures. On a x86_64, with allmodconfig: Before: ====== text data bss dec hex filename 5089 1160 0 6249 1869 drivers/thermal/loongson2_thermal.o After: ===== text data bss dec hex filename 5464 1128 0 6592 19c0 drivers/thermal/loongson2_thermal.o Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/5f5f815f85a9450bca7848c6d47a1fee840f47e5.1748176328.git.christophe.jaillet@wanadoo.fr Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-07-13thermal/drivers/qcom-spmi-temp-alarm: Add support for LITE PMIC peripheralsAnjelique Melendez
Add support for TEMP_ALARM LITE PMIC peripherals. This subtype utilizes a pair of registers to configure a warning interrupt threshold temperature and an automatic hardware shutdown threshold temperature. Co-developed-by: David Collins <david.collins@oss.qualcomm.com> Signed-off-by: David Collins <david.collins@oss.qualcomm.com> Signed-off-by: Anjelique Melendez <anjelique.melendez@oss.qualcomm.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20250710224555.3047790-6-anjelique.melendez@oss.qualcomm.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-07-13thermal/drivers/qcom-spmi-temp-alarm: Add support for GEN2 rev 2 PMIC ↵Anjelique Melendez
peripherals Add support for TEMP_ALARM GEN2 PMIC peripherals with digital major revision 2. This revision utilizes individual temp DAC registers to set the threshold temperature for over-temperature stages 1 (warning), 2 (system shutdown), and 3 (emergency shutdown) instead of a single register to specify a set of thresholds. Co-developed-by: David Collins <david.collins@oss.qualcomm.com> Signed-off-by: David Collins <david.collins@oss.qualcomm.com> Signed-off-by: Anjelique Melendez <anjelique.melendez@oss.qualcomm.com> Link: https://lore.kernel.org/r/20250710224555.3047790-5-anjelique.melendez@oss.qualcomm.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-07-13thermal/drivers/qcom-spmi-temp-alarm: Prepare to support additional Temp ↵Anjelique Melendez
Alarm subtypes In preparation to support newer temp alarm subtypes, add the "ops", "sync_thresholds" and "configure_trip_temps" references to spmi_temp_alarm_data. This will allow for each Temp Alarm subtype to define its own thermal_zone_device_ops and properly initialize and configure thermal trip temperature. Signed-off-by: Anjelique Melendez <anjelique.melendez@oss.qualcomm.com> Acked-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Link: https://lore.kernel.org/r/20250710224555.3047790-4-anjelique.melendez@oss.qualcomm.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-07-13thermal/drivers/qcom-spmi-temp-alarm: Add temp alarm data struct based on HW ↵Anjelique Melendez
subtype Currently multiple if/else statements are used in functions to decipher between SPMI temp alarm Gen 1, Gen 2 and Gen 2 Rev 1 functionality. Instead refactor the driver so that SPMI temp alarm chips will have reference to a spmi_temp_alarm_data struct which defines data and function callbacks based on the HW subtype. Signed-off-by: Anjelique Melendez <anjelique.melendez@oss.qualcomm.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/20250710224555.3047790-3-anjelique.melendez@oss.qualcomm.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-07-13thermal/drivers/qcom-spmi-temp-alarm: Enable stage 2 shutdown when requiredDavid Collins
Certain TEMP_ALARM GEN2 PMIC peripherals need over-temperature stage 2 automatic PMIC partial shutdown. This will ensure that in the event of reaching the hotter stage 3 over-temperature threshold, repeated faults will be avoided during the automatic PMIC hardware full shutdown. Modify the stage 2 shutdown control logic to ensure that stage 2 shutdown is enabled on all affected PMICs. Read the digital major and minor revision registers to identify these PMICs. Signed-off-by: David Collins <david.collins@oss.qualcomm.com> Signed-off-by: Anjelique Melendez <anjelique.melendez@oss.qualcomm.com> Link: https://lore.kernel.org/r/20250710224555.3047790-2-anjelique.melendez@oss.qualcomm.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-07-09fix tt_command_write()Al Viro
1) unbalanced debugfs_file_get(). Not needed in the first place - file_operations are accessed only via debugfs_create_file(), so debugfs wrappers will take care of that itself. 2) kmalloc() for a buffer used only for duration of a function is not a problem, but for a buffer no longer than 16 bytes? 3) strstr() is for finding substrings; for finding a character there's strchr(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: "Rafael J. Wysocki" <rafael@kernel.org> Link: https://lore.kernel.org/r/20250702212542.GH3406663@ZenIV Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-07Merge branch 'thermal-intel'Rafael J. Wysocki
Merge Intel thermal drivers updates for 6.17: - Add Wildcat Lake PCI ID to the int340x processor_thermal driver (Srinivas Pandruvada). - Add debugfs interface to override the temperature set by the firmware in the platform temperature control (PTC) interface and add a new sysfs control attribute called thermal_tolerance to it (Srinivas Pandruvada). * thermal-intel: thermal: int340x: processor_thermal: Add Wildcat Lake PCI ID thermal: intel: int340x: Allow temperature override thermal: intel: int340x: Add throttling control interface to PTC
2025-07-03thermal: sysfs: Return ENODATA instead of EAGAIN for readsHsin-Te Yuan
According to POSIX spec, EAGAIN returned by read with O_NONBLOCK set means the read would block. Hence, the common implementation in nonblocking model will poll the file when the nonblocking read returns EAGAIN. However, when the target file is thermal zone, this mechanism will totally malfunction because thermal zone doesn't implement sysfs notification and thus the poll will never return. For example, the read in Golang implemnts such method and sometimes hangs at reading some thermal zones via sysfs. Change to return -ENODATA instead of -EAGAIN to userspace. Signed-off-by: Hsin-Te Yuan <yuanhsinte@chromium.org> Link: https://patch.msgid.link/20250620-temp-v3-1-6becc6aeb66c@chromium.org Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2025-06-18thermal: int340x: processor_thermal: Add Wildcat Lake PCI IDSrinivas Pandruvada
Add Wildcat Lake PCI ID for processor thermal device. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Link: https://patch.msgid.link/20250617231940.3314546-1-srinivas.pandruvada@linux.intel.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2025-06-18ACPI: DPTF: Support for Wildcat LakeSrinivas Pandruvada
Add Wildcat Lake ACPI IDs for DPTF. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Link: https://patch.msgid.link/20250617231824.3314507-1-srinivas.pandruvada@linux.intel.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2025-06-16thermal: intel: int340x: Allow temperature overrideSrinivas Pandruvada
Add debugfs interface to override hardware provide temperature. This interface can be used primarily for debug. Alternatively this can be also used to use hardware control loops to manage temperature for virtual sensors. Virtual sensors are soft sensors created by kernel/ user space aggregating other sensors. There are three attributes to override the maximum three instances of platform temperature control. /sys/kernel/debug/platform_temperature_control/ ├── temperature_0 ├── temperature_1 └── temperature_2 These are write only attributes requires admin privilege. Any value greater than 0, will override the temperature. A value of 0 will stop overriding the temperature. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Reviewed-by: Zhang Rui <rui.zhang@intel.com> Link: https://patch.msgid.link/20250613214923.2910397-2-srinivas.pandruvada@linux.intel.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2025-06-16thermal: intel: int340x: Add throttling control interface to PTCSrinivas Pandruvada
Firmware-based thermal temperature control loops may aggressively throttle performance to prevent temperature overshoots relative to the defined target temperature. This can negatively impact performance. User space may prefer to prioritize performance, even if it results in temperature overshoots with in acceptable range. For example, user space might tolerate temperature overshoots when the device is placed on a desk, as opposed to when it's on a lap. To accommodate such scenarios, an optional attribute is provided to specify a tolerance level for temperature overshoots while maintaining acceptable performance. Attribute: thermal_tolerance: This attribute ranges from 0 to 7, where 0 represents the most aggressive control to avoid any temperature overshoots, and 7 represents a more graceful approach, favoring performance even at the expense of temperature overshoots. Note: This level may not scale linearly. For example, a value of 3 does not necessarily imply a 50% improvement in performance compared to a value of 0. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Reviewed-by: Zhang Rui <rui.zhang@intel.com> Link: https://patch.msgid.link/20250613214923.2910397-1-srinivas.pandruvada@linux.intel.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2025-05-27Merge tag 'thermal-6.16-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull thermal control updates from Rafael Wysocki: "These add support for a new feature, Platform Temperature Control (PTC), to the Intel int340x thermal driver, add support for the Airoha EN7581 thermal sensor and the IPQ5018 platform, fix up the ACPI thermal zones handling, fix other assorted issues and clean up code Specifics: - Add Platform Temperature Control (PTC) support to the Intel int340x thermal driver (Srinivas Pandruvada) - Make the Hisilicon thermal driver compile by default when ARCH_HISI is set (Krzysztof Kozlowski) - Clean up printk() format by using %pC instead of %pCn in the bcm2835 thermal driver (Luca Ceresoli) - Fix variable name coding style in the AmLogic thermal driver (Enrique Isidoro Vazquez Ramos) - Fix missing debugfs entry removal on failure by using the devm_ variant in the LVTS thermal driver (AngeloGioacchino Del Regno) - Remove the unused lvts_debugfs_exit() function as the devm_ variant introduced before takes care of removing the debugfs entry in the LVTS driver (Arnd Bergmann) - Add the Airoha EN7581 thermal sensor support along with its DT bindings (Christian Marangi) - Add ipq5018 compatible string DT binding, cleanup and add its suppot to the QCom Tsens thermal driver (Sricharan Ramabadhran, George Moussalem) - Fix comments typos in the Airoha driver (Christian Marangi, Colin Ian King) - Address a sparse warning by making a local variable static in the QCom thermal driver (George Moussalem) - Fix the usage of the _SCP control method in the driver for ACPI thermal zones (Armin Wolf)" * tag 'thermal-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: thermal: qcom: ipq5018: make ops_ipq5018 struct static thermal/drivers/airoha: Fix spelling mistake "calibrarion" -> "calibration" ACPI: thermal: Execute _SCP before reading trip points ACPI: OSI: Stop advertising support for "3.0 _SCP Extensions" thermal/drivers/airoha: Fix spelling mistake thermal/drivers/qcom/tsens: Add support for IPQ5018 tsens thermal/drivers/qcom/tsens: Add support for tsens v1 without RPM thermal/drivers/qcom/tsens: Update conditions to strictly evaluate for IP v2+ dt-bindings: thermal: qcom-tsens: Add ipq5018 compatible thermal/drivers: Add support for Airoha EN7581 thermal sensor dt-bindings: thermal: Add support for Airoha EN7581 thermal sensor thermal/drivers/mediatek/lvts: Remove unused lvts_debugfs_exit thermal/drivers/mediatek/lvts: Fix debugfs unregister on failure thermal/drivers/amlogic: Rename Uptat to uptat to follow kernel coding style vsprintf: remove redundant and unused %pCn format specifier thermal/drivers/bcm2835: Use %pC instead of %pCn thermal/drivers/hisi: Do not enable by default during compile testing thermal: int340x: processor_thermal: Platform temperature control documentation thermal: intel: int340x: Enable platform temperature control thermal: intel: int340x: Add platform temperature control interface
2025-05-27Merge tag 'irq-cleanups-2025-05-25' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq cleanups from Thomas Gleixner: "A set of cleanups for the generic interrupt subsystem: - Consolidate on one set of functions for the interrupt domain code to get rid of pointlessly duplicated code with only marginal different semantics. - Update the documentation accordingly and consolidate the coding style of the irqdomain header" * tag 'irq-cleanups-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (46 commits) irqdomain: Consolidate coding style irqdomain: Fix kernel-doc and add it to Documentation Documentation: irqdomain: Update it Documentation: irq-domain.rst: Simple improvements Documentation: irq/concepts: Minor improvements Documentation: irq/concepts: Add commas and reflow irqdomain: Improve kernel-docs of functions irqdomain: Make struct irq_domain_info variables const irqdomain: Use irq_domain_instantiate()'s return value as initializers irqdomain: Drop irq_linear_revmap() pinctrl: keembay: Switch to irq_find_mapping() irqchip/armada-370-xp: Switch to irq_find_mapping() gpu: ipu-v3: Switch to irq_find_mapping() gpio: idt3243x: Switch to irq_find_mapping() sh: Switch to irq_find_mapping() powerpc: Switch to irq_find_mapping() irqdomain: Drop irq_domain_add_*() functions powerpc: Switch irq_domain_add_nomap() to use fwnode thermal: Switch to irq_domain_create_linear() soc: Switch to irq_domain_create_*() ...
2025-05-26Merge tag 'x86-core-2025-05-25' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull core x86 updates from Ingo Molnar: "Boot code changes: - A large series of changes to reorganize the x86 boot code into a better isolated and easier to maintain base of PIC early startup code in arch/x86/boot/startup/, by Ard Biesheuvel. Motivation & background: | Since commit | | c88d71508e36 ("x86/boot/64: Rewrite startup_64() in C") | | dated Jun 6 2017, we have been using C code on the boot path in a way | that is not supported by the toolchain, i.e., to execute non-PIC C | code from a mapping of memory that is different from the one provided | to the linker. It should have been obvious at the time that this was a | bad idea, given the need to sprinkle fixup_pointer() calls left and | right to manipulate global variables (including non-pointer variables) | without crashing. | | This C startup code has been expanding, and in particular, the SEV-SNP | startup code has been expanding over the past couple of years, and | grown many of these warts, where the C code needs to use special | annotations or helpers to access global objects. This tree includes the first phase of this work-in-progress x86 boot code reorganization. Scalability enhancements and micro-optimizations: - Improve code-patching scalability (Eric Dumazet) - Remove MFENCEs for X86_BUG_CLFLUSH_MONITOR (Andrew Cooper) CPU features enumeration updates: - Thorough reorganization and cleanup of CPUID parsing APIs (Ahmed S. Darwish) - Fix, refactor and clean up the cacheinfo code (Ahmed S. Darwish, Thomas Gleixner) - Update CPUID bitfields to x86-cpuid-db v2.3 (Ahmed S. Darwish) Memory management changes: - Allow temporary MMs when IRQs are on (Andy Lutomirski) - Opt-in to IRQs-off activate_mm() (Andy Lutomirski) - Simplify choose_new_asid() and generate better code (Borislav Petkov) - Simplify 32-bit PAE page table handling (Dave Hansen) - Always use dynamic memory layout (Kirill A. Shutemov) - Make SPARSEMEM_VMEMMAP the only memory model (Kirill A. Shutemov) - Make 5-level paging support unconditional (Kirill A. Shutemov) - Stop prefetching current->mm->mmap_lock on page faults (Mateusz Guzik) - Predict valid_user_address() returning true (Mateusz Guzik) - Consolidate initmem_init() (Mike Rapoport) FPU support and vector computing: - Enable Intel APX support (Chang S. Bae) - Reorgnize and clean up the xstate code (Chang S. Bae) - Make task_struct::thread constant size (Ingo Molnar) - Restore fpu_thread_struct_whitelist() to fix CONFIG_HARDENED_USERCOPY=y (Kees Cook) - Simplify the switch_fpu_prepare() + switch_fpu_finish() logic (Oleg Nesterov) - Always preserve non-user xfeatures/flags in __state_perm (Sean Christopherson) Microcode loader changes: - Help users notice when running old Intel microcode (Dave Hansen) - AMD: Do not return error when microcode update is not necessary (Annie Li) - AMD: Clean the cache if update did not load microcode (Boris Ostrovsky) Code patching (alternatives) changes: - Simplify, reorganize and clean up the x86 text-patching code (Ingo Molnar) - Make smp_text_poke_batch_process() subsume smp_text_poke_batch_finish() (Nikolay Borisov) - Refactor the {,un}use_temporary_mm() code (Peter Zijlstra) Debugging support: - Add early IDT and GDT loading to debug relocate_kernel() bugs (David Woodhouse) - Print the reason for the last reset on modern AMD CPUs (Yazen Ghannam) - Add AMD Zen debugging document (Mario Limonciello) - Fix opcode map (!REX2) superscript tags (Masami Hiramatsu) - Stop decoding i64 instructions in x86-64 mode at opcode (Masami Hiramatsu) CPU bugs and bug mitigations: - Remove X86_BUG_MMIO_UNKNOWN (Borislav Petkov) - Fix SRSO reporting on Zen1/2 with SMT disabled (Borislav Petkov) - Restructure and harmonize the various CPU bug mitigation methods (David Kaplan) - Fix spectre_v2 mitigation default on Intel (Pawan Gupta) MSR API: - Large MSR code and API cleanup (Xin Li) - In-kernel MSR API type cleanups and renames (Ingo Molnar) PKEYS: - Simplify PKRU update in signal frame (Chang S. Bae) NMI handling code: - Clean up, refactor and simplify the NMI handling code (Sohil Mehta) - Improve NMI duration console printouts (Sohil Mehta) Paravirt guests interface: - Restrict PARAVIRT_XXL to 64-bit only (Kirill A. Shutemov) SEV support: - Share the sev_secrets_pa value again (Tom Lendacky) x86 platform changes: - Introduce the <asm/amd/> header namespace (Ingo Molnar) - i2c: piix4, x86/platform: Move the SB800 PIIX4 FCH definitions to <asm/amd/fch.h> (Mario Limonciello) Fixes and cleanups: - x86 assembly code cleanups and fixes (Uros Bizjak) - Misc fixes and cleanups (Andi Kleen, Andy Lutomirski, Andy Shevchenko, Ard Biesheuvel, Bagas Sanjaya, Baoquan He, Borislav Petkov, Chang S. Bae, Chao Gao, Dan Williams, Dave Hansen, David Kaplan, David Woodhouse, Eric Biggers, Ingo Molnar, Josh Poimboeuf, Juergen Gross, Malaya Kumar Rout, Mario Limonciello, Nathan Chancellor, Oleg Nesterov, Pawan Gupta, Peter Zijlstra, Shivank Garg, Sohil Mehta, Thomas Gleixner, Uros Bizjak, Xin Li)" * tag 'x86-core-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (331 commits) x86/bugs: Fix spectre_v2 mitigation default on Intel x86/bugs: Restructure ITS mitigation x86/xen/msr: Fix uninitialized variable 'err' x86/msr: Remove a superfluous inclusion of <asm/asm.h> x86/paravirt: Restrict PARAVIRT_XXL to 64-bit only x86/mm/64: Make 5-level paging support unconditional x86/mm/64: Make SPARSEMEM_VMEMMAP the only memory model x86/mm/64: Always use dynamic memory layout x86/bugs: Fix indentation due to ITS merge x86/cpuid: Rename hypervisor_cpuid_base()/for_each_possible_hypervisor_cpuid_base() to cpuid_base_hypervisor()/for_each_possible_cpuid_base_hypervisor() x86/cpu/intel: Rename CPUID(0x2) descriptors iterator parameter x86/cacheinfo: Rename CPUID(0x2) descriptors iterator parameter x86/cpuid: Rename cpuid_get_leaf_0x2_regs() to cpuid_leaf_0x2() x86/cpuid: Rename have_cpuid_p() to cpuid_feature() x86/cpuid: Set <asm/cpuid/api.h> as the main CPUID header x86/cpuid: Move CPUID(0x2) APIs into <cpuid/api.h> x86/msr: Add rdmsrl_on_cpu() compatibility wrapper x86/mm: Fix kernel-doc descriptions of various pgtable methods x86/asm-offsets: Export certain 'struct cpuinfo_x86' fields for 64-bit asm use too x86/boot: Defer initialization of VM space related global variables ...
2025-05-23thermal: qcom: ipq5018: make ops_ipq5018 struct staticGeorge Moussalem
Fix a sparse warning by making the ops_ipq5018 struct static. Fixes: 04b31cc53fe0 ("thermal/drivers/qcom/tsens: Add support for IPQ5018 tsens") Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202505202356.S21Sc7bk-lkp@intel.com/ Signed-off-by: George Moussalem <george.moussalem@outlook.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://patch.msgid.link/20250522-ipq5018-tsens-sparse-v1-1-97edaaaef27c@outlook.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2025-05-23thermal/drivers/airoha: Fix spelling mistake "calibrarion" -> "calibration"Colin Ian King
There is a spelling mistake in a dev_info message. Fix it. Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Link: https://patch.msgid.link/20250522083157.1957240-1-colin.i.king@gmail.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2025-05-19thermal: intel: x86_pkg_temp_thermal: Fix bogus trip temperatureZhang Rui
The tj_max value obtained from the Intel TCC library are in Celsius, whereas the thermal subsystem operates in milli-Celsius. This discrepancy leads to incorrect trip temperature calculations. Fix bogus trip temperature by converting tj_max to milli-Celsius Unit. Fixes: 8ef0ca4a177d ("Merge back other thermal control material for 6.3.") Signed-off-by: Zhang Rui <rui.zhang@intel.com> Reported-by: zhang ning <zhangn1985@outlook.com> Closes: https://lore.kernel.org/all/TY2PR01MB3786EF0FE24353026293F5ACCD97A@TY2PR01MB3786.jpnprd01.prod.outlook.com/ Tested-by: zhang ning <zhangn1985@outlook.com> Cc: 6.3+ <stable@vger.kernel.org> # 6.3+ Link: https://patch.msgid.link/20250519070901.1031233-1-rui.zhang@intel.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2025-05-19Merge tag 'thermal-v6.16-rc1' of ↵Rafael J. Wysocki
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/thermal/linux Merge updates of multiple thermal drivers for 6.16 from Daniel Lezcano: "- Make the Hisilicon driver to compile by default when ARCH_HISI is set (Krzysztof Kozlowski) - Cleanup printk format with use of %pC instead of %pCn in the bcm2835 driver (Luca Ceresoli) - Fix variable naming coding style in the AmLogic driver (Enrique Isidoro Vazquez Ramos) - Fix missing debugfs entry removal on failure by using the devm_ variant in the LVTS driver (AngeloGioacchino Del Regno) - Remove the unused lvts_debugfs_exit() function as the devm variant introduced before takes care of removing the debugfs entry in the LVTS driver (Arnd Bergmann) - Add the Airoha EN7581 thermal sensor support along with its DT bindings (Christian Marangi) - Add ipq5018 compatible string DT binding, cleanup and add its suppot in the QCom Tsens driver driver (Sricharan Ramabadhran and George Moussalem) - Fix comments typos in the Airoha driver (Christian Marangi)" * tag 'thermal-v6.16-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/thermal/linux: thermal/drivers/airoha: Fix spelling mistake thermal/drivers/qcom/tsens: Add support for IPQ5018 tsens thermal/drivers/qcom/tsens: Add support for tsens v1 without RPM thermal/drivers/qcom/tsens: Update conditions to strictly evaluate for IP v2+ dt-bindings: thermal: qcom-tsens: Add ipq5018 compatible thermal/drivers: Add support for Airoha EN7581 thermal sensor dt-bindings: thermal: Add support for Airoha EN7581 thermal sensor thermal/drivers/mediatek/lvts: Remove unused lvts_debugfs_exit thermal/drivers/mediatek/lvts: Fix debugfs unregister on failure thermal/drivers/amlogic: Rename Uptat to uptat to follow kernel coding style vsprintf: remove redundant and unused %pCn format specifier thermal/drivers/bcm2835: Use %pC instead of %pCn thermal/drivers/hisi: Do not enable by default during compile testing
2025-05-16thermal: Switch to irq_domain_create_linear()Jiri Slaby (SUSE)
irq_domain_add_linear() is going away as being obsolete now. Switch to the preferred irq_domain_create_linear(). That differs in the first parameter: It takes more generic struct fwnode_handle instead of struct device_node. Therefore, of_fwnode_handle() is added around the parameter. Note some of the users can likely use dev->fwnode directly instead of indirect of_fwnode_handle(dev->of_node). But dev->fwnode is not guaranteed to be set for all, so this has to be investigated on case to case basis (by people who can actually test with the HW). [ tglx: Fixed up subject prefix ] Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20250319092951.37667-39-jirislaby@kernel.org
2025-05-16thermal/drivers/airoha: Fix spelling mistakeChristian Marangi
Fix various spelling mistake in airoha_thermal_setup_monitor() and define. Reported-by: Alok Tiwari <alok.a.tiwari@oracle.com> Signed-off-by: Christian Marangi <ansuelsmth@gmail.com> Link: https://lore.kernel.org/r/20250514213919.2321490-1-ansuelsmth@gmail.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16thermal/drivers/qcom/tsens: Add support for IPQ5018 tsensSricharan Ramabadhran
IPQ5018 has tsens IP V1.0, 5 sensors of which 4 are in use and 1 interrupt. The IP does not have a RPM, hence use init routine for tsens v1.0 without RPM which does not early enable. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Sricharan Ramabadhran <quic_srichara@quicinc.com> Signed-off-by: George Moussalem <george.moussalem@outlook.com> Link: https://lore.kernel.org/r/DS7PR19MB8883BD0E36C08DD1D03CE1CB9DCC2@DS7PR19MB8883.namprd19.prod.outlook.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16thermal/drivers/qcom/tsens: Add support for tsens v1 without RPMGeorge Moussalem
Adding generic support for SoCs with tsens v1.0 IP with no RPM. Due to lack of RPM, tsens has to be reset and enabled in the driver init. SoCs can have support for more sensors than those which will actually be enabled. As such, init will only enable those explicitly added to the hw_ids array. Co-developed-by: Sricharan Ramabadhran <quic_srichara@quicinc.com> Signed-off-by: Sricharan Ramabadhran <quic_srichara@quicinc.com> Signed-off-by: George Moussalem <george.moussalem@outlook.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Link: https://lore.kernel.org/r/DS7PR19MB8883C5D7974C7735E23923769DCC2@DS7PR19MB8883.namprd19.prod.outlook.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16thermal/drivers/qcom/tsens: Update conditions to strictly evaluate for IP v2+George Moussalem
TSENS v2.0+ leverage features not available to prior versions such as updated interrupts init routine, masked interrupts, and watchdog. Currently, the checks in place evaluate whether the IP version is greater than v1 which invalidates when updates to v1 or v1 minor versions are implemented. As such, update the conditional statements to strictly evaluate whether the version is greater than or equal to v2 (inclusive). Signed-off-by: George Moussalem <george.moussalem@outlook.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Amit Kucheria <amitk@kernel.org> Link: https://lore.kernel.org/r/DS7PR19MB8883434CAA053648E22AA8AC9DCC2@DS7PR19MB8883.namprd19.prod.outlook.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16thermal/drivers: Add support for Airoha EN7581 thermal sensorChristian Marangi
Add support for Airoha EN7581 thermal sensor. This provide support for reading the CPU or SoC Package sensor and to setup trip points for hot and critical condition. An interrupt is fired to react on this and doesn't require passive poll to read the temperature. The thermal regs provide a way to read the ADC value from an external register placed in the Chip SCU regs. Monitor will read this value and fire an interrupt if the trip condition configured is reached. The Thermal Trip and Interrupt logic is conceptually similar to Mediatek LVTS Thermal but differ in register mapping and actual function/bug workaround. The implementation only share some register names but from functionality observation it's very different and used only for the basic function of periodically poll the temp and trip the interrupt. Signed-off-by: Christian Marangi <ansuelsmth@gmail.com> Link: https://lore.kernel.org/r/20250511185003.3754495-2-ansuelsmth@gmail.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16thermal/drivers/mediatek/lvts: Remove unused lvts_debugfs_exitArnd Bergmann
When debugfs is disabled, the function has no reference any more: drivers/thermal/mediatek/lvts_thermal.c:266:13: error: 'lvts_debugfs_exit' defined but not used [-Werror=unused-function] 266 | static void lvts_debugfs_exit(struct lvts_domain *lvts_td) { } | ^~~~~~~~~~~~~~~~~ Fixes: ef280c17a840 ("thermal/drivers/mediatek/lvts: Fix debugfs unregister on failure") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20250505052502.1812867-1-arnd@kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16thermal/drivers/mediatek/lvts: Fix debugfs unregister on failureAngeloGioacchino Del Regno
When running the probe function for this driver, the function lvts_debugfs_init() gets called in lvts_domain_init() which, in turn, gets called in lvts_probe() before registering threaded interrupt handlers. Even though it's unlikely, the last call may fail and, if it does, there's nothing removing the already created debugfs folder and files. In order to fix that, instead of calling the lvts debugfs cleanup function upon failure, register a devm action that will take care of calling that upon failure or driver removal. Since devm was used, also delete the call to lvts_debugfs_exit() in the lvts_remove() callback, as now that's done automatically. Fixes: f5f633b18234 ("thermal/drivers/mediatek: Add the Low Voltage Thermal Sensor driver") Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Reviewed-by: Chen-Yu Tsai <wenst@chromium.org> Link: https://lore.kernel.org/r/20250402083852.20624-1-angelogioacchino.delregno@collabora.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16thermal/drivers/amlogic: Rename Uptat to uptat to follow kernel coding styleEnrique Isidoro Vazquez Ramos
The variable Uptat uses CamelCase, which violates the kernel's coding style that mandates snake_case for variable names. This is a purely cosmetic change with no functional impact. Compilation tested with: - checkpatch.pl --strict passed (no new warnings/errors). Signed-off-by: Enrique Isidoro Vazquez Ramos <kike.correo99.f@gmail.com> Link: https://lore.kernel.org/r/Z-MEZNMLUmj75uxN@debian.debian Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16thermal/drivers/bcm2835: Use %pC instead of %pCnLuca Ceresoli
The %pC and %pCn printk format specifiers produce the exact same string. In preparation for removing %pCn, use %pC. Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Link: https://lore.kernel.org/r/20250311-vsprintf-pcn-v2-1-0af40fc7dee4@bootlin.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-16thermal/drivers/hisi: Do not enable by default during compile testingKrzysztof Kozlowski
Enabling the compile test should not cause automatic enabling of all drivers, but only allow to choose to compile them. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Lukasz Luba <lukasz.luba@arm.com> Link: https://lore.kernel.org/r/20250417074638.81329-1-krzysztof.kozlowski@linaro.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2025-05-07thermal: intel: int340x: Enable platform temperature controlSrinivas Pandruvada
Enable the Platform Temperature Control feature for Lunar Lake and Panther Lake. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Link: https://patch.msgid.link/20250429000110.236243-3-srinivas.pandruvada@linux.intel.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2025-05-07thermal: intel: int340x: Add platform temperature control interfaceSrinivas Pandruvada
Platform Temperature Control is a dynamic control loop implemented in hardware to manage the skin or any board temperature of a device. The reported skin or board temperature is controlled by comparing to a configured target temperature and adjusting the SoC (System on Chip) performance accordingly. The feature supports up to three platform sensors. OEMs (Original Equipment Manufacturers) can configure this feature through the BIOS and provide temperature input directly to the hardware via the Platform Environment Control Interface (PECI). As a result, this feature can operate independently of any OS-level control. The OS interface can be used to further fine-tune the default OEM configuration. Here are some scenarios where the OS interface is beneficial: Verification of Firmware Control: Check if firmware-based control is enabled. If it is, thermal controls from the OS/user space can be backed out. Adjusting Target Limits: While OEMs can set an aggressive target limit, the OS can adjust this to a less aggressive limit based on operating modes or conditions. Given that this is platform temperature control, it is expected that a single user-level manager owns and manages the controls. If multiple user-level software applications attempt to write different targets, it can lead to unexpected behavior. For instance, on a Linux desktop, the Linux thermal daemon can manage these temperature controls, as it has access to all other temperature control settings. The hardware control interface is via MMIO offsets in the processor thermal device MMIO space. There are three instances of MMIO registers. Refer to the platform_temperature_control.c for MMIO details. Expose "enable" and "temperature_target" via sysfs. There are three instances of this controls. So up to three different sensors can be controlled independently. Sysfs interface: tree /sys/bus/pci/devices/0000\:00\:04.0/ptc_?_control/ /sys/bus/pci/devices/0000:00:04.0/ptc_0_control/ ├── enable └── temperature_target /sys/bus/pci/devices/0000:00:04.0/ptc_1_control/ ├── enable └── temperature_target /sys/bus/pci/devices/0000:00:04.0/ptc_2_control/ ├── enable └── temperature_target Description of attributes: Enable: 1 for enable, 0 for disable. This attribute can be used to read the current status. User space can write 0 or 1 to disable or enable this feature respectively. temperature_target: Target temperature limit to which hardware will try to limit in milli degree C. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Link: https://patch.msgid.link/20250429000110.236243-2-srinivas.pandruvada@linux.intel.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2025-05-02x86/msr: Add explicit includes of <asm/msr.h>Xin Li (Intel)
For historic reasons there are some TSC-related functions in the <asm/msr.h> header, even though there's an <asm/tsc.h> header. To facilitate the relocation of rdtsc{,_ordered}() from <asm/msr.h> to <asm/tsc.h> and to eventually eliminate the inclusion of <asm/msr.h> in <asm/tsc.h>, add an explicit <asm/msr.h> dependency to the source files that reference definitions from <asm/msr.h>. [ mingo: Clarified the changelog. ] Signed-off-by: Xin Li (Intel) <xin@zytor.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Acked-by: Dave Hansen <dave.hansen@linux.intel.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Brian Gerst <brgerst@gmail.com> Cc: Juergen Gross <jgross@suse.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Kees Cook <keescook@chromium.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Uros Bizjak <ubizjak@gmail.com> Link: https://lore.kernel.org/r/20250501054241.1245648-1-xin@zytor.com
2025-05-02Merge tag 'v6.15-rc4' into x86/msr, to pick up fixes and resolve conflictsIngo Molnar
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2025-04-15thermal: intel: int340x: Fix Panther Lake DLVR supportSrinivas Pandruvada
Panther Lake uses the same DLVR register offsets as Lunar Lake, but the driver uses the default register offsets table for it by mistake. Move the selection of register offsets table from the actual attribute read/write callbacks to proc_thermal_rfim_add() and make it handle Panther Lake the same way as Lunar Lake. This way it is clean and in the future such issues can be avoided. Fixes: e50eeababa94 ("thermal: intel: int340x: Panther Lake DLVR support") Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Link: https://patch.msgid.link/20250411115438.594114-1-srinivas.pandruvada@linux.intel.com [ rjw: Changelog edits ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2025-04-15thermal: intel: int340x: Add missing DVFS support flagsSrinivas Pandruvada
DVFS (Dynamic Voltage Frequency Scaling) is still supported for DDR memory on Lunar Lake and Panther Lake. Add the missing flag PROC_THERMAL_FEATURE_DVFS. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Link: https://patch.msgid.link/20250410172943.577913-1-srinivas.pandruvada@linux.intel.com [ rjw: Subject edit ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2025-04-10x86/msr: Rename 'wrmsrl_safe()' to 'wrmsrq_safe()'Ingo Molnar
Suggested-by: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Juergen Gross <jgross@suse.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Xin Li <xin@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org>
2025-04-10x86/msr: Rename 'rdmsrl_safe()' to 'rdmsrq_safe()'Ingo Molnar
Suggested-by: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Juergen Gross <jgross@suse.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Xin Li <xin@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org>