Linux kernel stable tree (mirror) https://git.radix-linux.su/kernel/linux.git/atom?h=v6.12.80 2024-08-22T15:42:57+00:00 2024-08-22T15:42:57+00:00 Rafael J. Wysocki rafael.j.wysocki@intel.com 2024-08-22T15:42:57+00:00 urn:sha1:f6a034f2df426e279f1ecad53626bab80c04796a Introduce a facility allowing the thermal core functionality to be exercised in a controlled way in order to verify its behavior, without affecting its regular users noticeably. It is based on the idea of preparing thermal zone templates along with their trip points by writing to files in debugfs. When ready, those templates can be used for registering test thermal zones with the thermal core. The temperature of a test thermal zone created this way can be adjusted via debugfs, which also triggers a __thermal_zone_device_update() call for it. By manipulating the temperature of a test thermal zone, one can check if the thermal core reacts to the changes of it as expected. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://patch.msgid.link/6065927.lOV4Wx5bFT@rjwysocki.net [ rjw: Fixed ordering of kcalloc() arguments ] [ rjw: Fixed debugfs_create_dir() return value checks ] [ rjw: Fixed two kerneldoc comments ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 2024-07-15T11:31:38+00:00 Niklas Söderlund niklas.soderlund+renesas@ragnatech.se 2024-05-06T15:40:10+00:00 urn:sha1:9d617949d49099d549175979e6454ce64461eaa2 Move all Renesas thermal drivers to a vendor specific directory. All drivers are moved verbatim apart from the updated include path for thermal_hwmon.h. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20240506154011.344324-2-niklas.soderlund+renesas@ragnatech.se 2024-03-11T16:14:46+00:00 Geert Uytterhoeven geert+renesas@glider.be 2024-02-15T12:51:19+00:00 urn:sha1:f492d8220f0cd2d773b75ad63749e9b20bd23b6c There is never a need to have a space before a TAB, but it hurts the eyes of vim users. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/480478a53fd42621e97b2db36e181903cc0f53e3.1708001426.git.geert+renesas@glider.be 2024-01-17T22:47:33+00:00 Linus Torvalds torvalds@linux-foundation.org 2024-01-17T22:47:33+00:00 urn:sha1:d8e6ba025f5e45cb0821298919b0e07130cef877 Pull more thermal control updates from Rafael Wysocki: "These add support for debugfs-based diagnostics to the thermal core, simplify the thermal netlink API, fix system-wide PM support in the Intel HFI driver and clean up some code. Specifics: - Add debugfs-based diagnostics support to the thermal core (Daniel Lezcano, Dan Carpenter) - Fix a power allocator thermal governor issue preventing it from resetting cooling devices sometimes (Di Shen) - Simplify the thermal netlink API and clean up related code (Rafael J. Wysocki) - Make the Intel HFI driver support hibernation and deep suspend properly (Ricardo Neri)" * tag 'thermal-6.8-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: thermal/debugfs: Unlock on error path in thermal_debug_tz_trip_up() thermal: intel: hfi: Add syscore callbacks for system-wide PM thermal: gov_power_allocator: avoid inability to reset a cdev thermal: helpers: Rearrange thermal_cdev_set_cur_state() thermal: netlink: Rework notify API for cooling devices thermal: core: Use kstrdup_const() during cooling device registration thermal/debugfs: Add thermal debugfs information for mitigation episodes thermal/debugfs: Add thermal cooling device debugfs information thermal: netlink: Pass thermal zone pointer to notify routines thermal: netlink: Drop thermal_notify_tz_trip_add/delete() thermal: netlink: Pass pointers to thermal_notify_tz_trip_up/down() thermal: netlink: Pass pointers to thermal_notify_tz_trip_change() 2024-01-12T14:34:56+00:00 Daniel Lezcano daniel.lezcano@linaro.org 2024-01-09T09:41:11+00:00 urn:sha1:755113d7678681a137c330f7997ceb680adb644e The thermal framework does not have any debug information except a sysfs stat which is a bit controversial. This one allocates big chunks of memory for every cooling devices with a high number of states and could represent on some systems in production several megabytes of memory for just a portion of it. As the sysfs is limited to a page size, the output is not exploitable with large data array and gets truncated. The patch provides the same information than sysfs except the transitions are dynamically allocated, thus they won't show more events than the ones which actually occurred. There is no longer a size limitation and it opens the field for more debugging information where the debugfs is designed for, not sysfs. The thermal debugfs directory structure tries to stay consistent with the sysfs one but in a very simplified way: thermal/ -- cooling_devices |-- 0 | |-- clear | |-- time_in_state_ms | |-- total_trans | `-- trans_table |-- 1 | |-- clear | |-- time_in_state_ms | |-- total_trans | `-- trans_table |-- 2 | |-- clear | |-- time_in_state_ms | |-- total_trans | `-- trans_table |-- 3 | |-- clear | |-- time_in_state_ms | |-- total_trans | `-- trans_table `-- 4 |-- clear |-- time_in_state_ms |-- total_trans `-- trans_table The content of the files in the cooling devices directory is the same as the sysfs one except for the trans_table which has the following format: Transition Hits 1->0 246 0->1 246 2->1 632 1->2 632 3->2 98 2->3 98 Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> [ rjw: White space fixups, rebase ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 2023-11-21T14:04:08+00:00 Rafael J. Wysocki rafael.j.wysocki@intel.com 2023-10-17T20:05:23+00:00 urn:sha1:f47507988145185aef5d0e7a0e28dbf6e7776f29 The ACPI thermal library contains functions that can be used to retrieve trip point temperature values through the platform firmware for various types of trip points. Each of these functions basically evaluates a specific ACPI object, checks if the value produced by it is reasonable and returns it (or THERMAL_TEMP_INVALID if anything fails). It made sense to hold it in drivers/thermal/ so long as it was only used by the code in that directory, but since it is also going to be used by the ACPI thermal driver located in drivers/acpi/, move it to the latter in order to keep the code related to evaluating ACPI objects defined in the specification proper together. No intentional functional impact. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 2023-08-17T07:27:18+00:00 Yinbo Zhu zhuyinbo@loongson.cn 2023-08-17T02:10:06+00:00 urn:sha1:e7e3a7c35791fe7a70997883fb8ada5866a40f4d This patch adds the support for Loongson-2 thermal sensor controller, which can support maximum four sensor selectors that corresponding to four sets of thermal control registers and one set of sampling register. The sensor selector can selector a speific thermal sensor as temperature input. The sampling register is used to obtain the temperature in real time, the control register GATE field is used to set the threshold of high or low temperature, when the input temperature is higher than the high temperature threshold or lower than the low temperature threshold, an interrupt will occur. Signed-off-by: zhanghongchen <zhanghongchen@loongson.cn> Signed-off-by: Yinbo Zhu <zhuyinbo@loongson.cn> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20230817021007.10350-1-zhuyinbo@loongson.cn 2023-04-01T18:51:45+00:00 Daniel Lezcano daniel.lezcano@linaro.org 2023-03-07T13:37:25+00:00 urn:sha1:32a7a02117de01199ce15ec121ac7af417c340eb The traces are exported but only local to the thermal core code. On the other side, the traces take the thermal zone device structure as argument, thus they have to rely on the exported thermal.h header file. As we want to move the structure to the private thermal core header, first we have to relocate those traces to the same place as many drivers do. Cc: Steven Rostedt <rostedt@goodmis.org> Suggested-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org> Link: https://lore.kernel.org/r/20230307133735.90772-2-daniel.lezcano@linaro.org 2023-02-15T16:28:25+00:00 Balsam CHIHI bchihi@baylibre.com 2023-02-09T10:56:23+00:00 urn:sha1:fad399ebdd67f602f306b524e6f62c3570943a48 Add MediaTek proprietary folder to upstream more thermal zone and cooler drivers, relocate the original thermal controller driver to it, and rename it as "auxadc_thermal.c" to show its purpose more clearly. Signed-off-by: Balsam CHIHI <bchihi@baylibre.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20230209105628.50294-2-bchihi@baylibre.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 2023-02-15T16:08:30+00:00 Rafael J. Wysocki rafael.j.wysocki@intel.com 2023-02-15T16:08:30+00:00 urn:sha1:c3bd6d539f34784b235c7070edba978f67516372 Merge thermal control core changes for 6.3-rc1: - Clean up thermal device unregistration code (Viresh Kumar). - Fix and clean up thermal control core initialization error code paths (Daniel Lezcano). - Relocate the trip points handling code into a separate file (Daniel Lezcano). - Make the thermal core fail registration of thermal zones and cooling devices if the thermal class has not been registered (Rafael Wysocki). - Make the core thermal control code use sysfs_emit_at() instead of scnprintf() where applicable (ye xingchen). * thermal-core: thermal: core: Use sysfs_emit_at() instead of scnprintf() thermal: Fail object registration if thermal class is not registered thermal/core: Move the thermal trip code to a dedicated file thermal/core: Remove unneeded ida_destroy() thermal/core: Fix unregistering netlink at thermal init time thermal: core: Use device_unregister() instead of device_del/put() thermal: core: Move cdev cleanup to thermal_release()