On Mon, 10 Nov 2025, Denis Benato wrote: > On 11/10/25 16:17, Ilpo Järvinen wrote: > > On Sun, 2 Nov 2025, Denis Benato wrote: > > > >> Hi all, > >> > >> the TL;DR: > >> 1. Introduce new module to contain bios attributes, using fw_attributes_class > >> 2. Deprecate all possible attributes from asus-wmi that were added ad-hoc > >> 3. Remove those in the next LTS cycle > >> > >> The idea for this originates from a conversation with Mario Limonciello > >> https://lore.kernel.org/platform-driver-x86/371d4109-a3bb-4c3b-802f-4ec27a945c99@amd.com/ > >> > >> It is without a doubt much cleaner to use, easier to discover, and the > >> API is well defined as opposed to the random clutter of attributes I had > >> been placing in the platform sysfs. Given that Derek is also working on a > >> similar approach to Lenovo in part based on my initial work I'd like to think > >> that the overall approach is good and may become standardised for these types > >> of things. > >> > >> Regarding PPT: it is intended to add support for "custom" platform profile > >> soon. If it's a blocker for this patch series being accepted I will drop the > >> platform-x86-asus-armoury-add-ppt_-and-nv_-tuning.patch and get that done > >> separately to avoid holding the bulk of the series up. Ideally I would like > >> to get the safe limits in so users don't fully lose functionality or continue > >> to be exposed to potential instability from setting too low, or be mislead > >> in to thinking they can set limits higher than actual limit. > >> > >> The bulk of the PPT patch is data, the actual functional part is relatively > >> small and similar to the last version. > >> > >> Unfortunately I've been rather busy over the months and may not cover > >> everything in the v7 changelog but I've tried to be as comprehensive as I can. > >> > >> Regards, > >> Luke > >> > >> Changelog: > >> - v1 > >> - Initial submission > >> - v2 > >> - Too many changes to list, but all concerns raised in previous submission addressed. > >> - History: https://lore.kernel.org/platform-driver-x86/20240716051612.64842-1-luke@ljones.dev/ > >> - v3 > >> - All concerns addressed. > >> - History: https://lore.kernel.org/platform-driver-x86/20240806020747.365042-1-luke@ljones.dev/ > >> - v4 > >> - Use EXPORT_SYMBOL_NS_GPL() for the symbols required in this patch series > >> - Add patch for hid-asus due to the use of EXPORT_SYMBOL_NS_GPL() > >> - Split the PPT knobs out to a separate patch > >> - Split the hd_panel setting out to a new patch > >> - Clarify some of APU MEM configuration and convert int to hex > >> - Rename deprecated Kconfig option to ASUS_WMI_DEPRECATED_ATTRS > >> - Fixup cyclic dependency in Kconfig > >> - v5 > >> - deprecate patch: cleanup ``#if`, ``#endif` statements, edit kconfig detail, edit commit msg > >> - cleanup ppt* tuning patch > >> - proper error handling in module init, plus pr_err() > >> - ppt tunables have a notice if there is no match to get defaults > >> - better error handling in cpu core handling > >> - don't continue if failure > >> - use the mutex to gate WMI writes > >> - V6 > >> - correctly cleanup/unwind if module init fails > >> - V7 > >> - Remove review tags where the code changed significantly > >> - Add auto_screen_brightness WMI attribute support > >> - Move PPT patch to end > >> - Add support min/max PPT values for 36 laptops (and two handhelds) > >> - reword commit for "asus-wmi: export symbols used for read/write WMI" > >> - asus-armoury: move existing tunings to asus-armoury > >> - Correction to license header > >> - Remove the (initial) mutex use (added for core count only in that patch) > >> - Clarify some doc comments (attr_int_store) > >> - Cleanup pr_warn in dgpu/egpu/mux functions > >> - Restructure logic in asus_fw_attr_add() > >> - Check gpu_mux_dev_id and mini_led_dev_id before remove attrs > >> - asus-armoury: add core count control: > >> - add mutex to prevent possible concurrent write to the core > >> count WMI due to separated bit/little attributes > >> - asus-armoury: add ppt_* and nv_* tuning knobs: > >> - Move to end of series > >> - Refactor to use a table of allowed min/max values to > >> ensure safe settings > >> - General code cleanup > >> - Ensure checkpatch.pl returns clean for all > >> - V8 > >> - asus-armoury: move existing tunings to asus-armoury module > >> - Further cleanup: https://lore.kernel.org/platform-driver-x86/20250316230724.100165-2-luke@ljones.dev/T/#m72e203f64a5a28c9c21672406b2e9f554a8a8e38 > >> - asus-armoury: add ppt_* and nv_* tuning knobs > >> - Address concerns in https://lore.kernel.org/platform-driver-x86/20250316230724.100165-2-luke@ljones.dev/T/#m77971b5c1e7f018954c16354e623fc06522c5e41 > >> - Refactor struct asus_armoury_priv to record both AC and DC settings > >> - Tidy macros and functions affected by the above to be clearer as a result > >> - Move repeated strings such as "ppt_pl1_spl" to #defines > >> - Split should_create_tunable_attr() in to two functions to better clarify: > >> - is_power_tunable_attr() > >> - has_valid_limit() > >> - Restructure init_rog_tunables() to initialise AC and DC in a > >> way that makes more sense. > >> - Ensure that if DC setting table is not available then attributes > >> return -ENODEV only if on DC mode. > >> - V9 > >> - asus-armoury: move existing tunings to asus-armoury module > >> - return -EBUSY when eGPU/dGPU cannot be deactivated > >> - asus-armoury: add apu-mem control support > >> - discard the WMI presence bit fixing the functionality > >> - asus-armoury: add core count control > >> - replace mutex lock/unlock with guard > >> - move core count alloc for initialization in init_max_cpu_cores() > >> - v10 > >> - platform/x86: asus-wmi: export symbols used for read/write WMI > >> - fix error with redefinition of asus_wmi_set_devstate > >> - asus-armoury: move existing tunings to asus-armoury module > >> - hwmon or other -> hwmon or others > >> - fix wrong function name in documentation (attr_uint_store) > >> - use kstrtouint where appropriate > >> - (*) fix unreachable code warning: the fix turned out to be partial > >> - improve return values in case of error in egpu_enable_current_value_store > >> - asus-armoury: asus-armoury: add screen auto-brightness toggle > >> - actually register screen_auto_brightness attribute > >> - v11 > >> - cover-letter: > >> - reorganize the changelog of v10 > >> - asus-armoury: move existing tunings to asus-armoury module > >> - move the DMIs list in its own include, fixing (*) for good > >> - asus-armoury: add ppt_* and nv_* tuning knobs > >> - fix warning about redefinition of ppt_pl2_sppt_def for GV601R > >> - v12 > >> - asus-armoury: add ppt_* and nv_* tuning knobs > >> - add min/max values for FA608WI and FX507VI > >> - v13 > >> - asus-armoury: add ppt_* and nv_* tuning knobs > >> - fix a typo in a comment about _def attributes > >> - add min/max values for GU605CW and G713PV > >> - asus-armoury: add apu-mem control support > >> - fix a possible out-of-bounds read in apu_mem_current_value_store > >> - v14 > >> - platform/x86: asus-wmi: rename ASUS_WMI_DEVID_PPT_FPPT > >> - added patch to rename the symbol for consistency > >> - platform/x86: asus-armoury: add ppt_* and nv_* tuning knobs > >> - remove the unchecked usage of dmi_get_system_info while > >> also increasing consistency with other messages > >> - v15 > >> - platform/x86: asus-wmi: export symbols used for read/write WMI > >> - fix kernel doc > >> - platform/x86: asus-armoury: move existing tunings to asus-armoury module > >> - avoid direct calls to asus-wmi and provide helpers instead > >> - rework xg mobile activation logic > >> - add helper for enum allowed attributes > >> - improve mini_led_mode_current_value_store > >> - improved usage of kstrtouint, kstrtou32 and kstrtobool > >> - unload attributes in reverse order of loading > >> - platform/x86: asus-armoury: add apu-mem control support > >> - fix return value in apu_mem_current_value_show > >> - platform/x86: asus-armoury: add core count control > >> - put more safeguards in place against possible bricking of laptops > >> - improve loading logic > >> - platform/x86: asus-wmi: deprecate bios features > >> - modified deprecation message > >> - platform/x86: asus-armoury: add ppt_* and nv_* tuning knobs > >> - make _store(s) to interfaces unusable in DC to fail, > >> instead of accepting 0 as a value (0 is also invalid) > >> - make it easier to understand AC vs DC logic > >> - improved init_rog_tunables() logic > >> - commas after every field in the table for consistency > >> - add support for RC73 handheld > >> -v16 > >> - platform/x86: asus-armoury: add ppt_* and nv_* tuning knobs > >> - add support for GU605CX > >> -v17 > >> - platform/x86: asus-armoury: add ppt_* and nv_* tuning knobs > >> - fix RC73 -> RC73AX as another RC73 exists > >> - platform/x86: asus-armoury: add core count control > >> - be more tolerant on out-or-range current CPU cores count > >> - platform/x86: asus-armoury: move existing tunings to asus-armoury module > >> - fix usage of undeclared static functions in macros > > I've applied this to the review-ilpo-next branch. I'm still not entirely > > happy with how the cpu cores change does store values without arrays but > > it's not an end of the world (and could be fixed in tree). > Hello and thanks. > > You would make me very happy applying things as Luke wrote them > so that successive modifications are more easily compared to > what those were doing before I changed them... I just took them as they were so you should be "happy" now :-) ...Even if I didn't like having all those as separate variables requiring if statements here and there, which could be avoided if core type would be an array index so one could simply do: ... case CPU_CORE_MAX: cpu_core_value = asus_armoury.cpu_cores[core_type]->max; break; ... Doing that transformation incrementally looks simple enough it should be low risk after a careful review. > Also if you have some more hints on how I could change that > interface (while avoiding bad surprises due to index mismatch) > I will try my best... without destroying any laptop... > perhaps... Hopefully? Wish me luck. > > > I had to reorder a few includes to make the order alphabetical which > > luckily worked out without causing conflicts within the subsequent > > patches (and a need to respin the series). Please try to remember to > > keep those in the alphabetical order. > > I have noticed a pair of warnings in this v17 I would like to solve: > one line is too long, I should break it and one macro has an > unused parameter. > > No semantic changes. > > I have seen one of those unordered includes in asus-armoury.h... > That branch is public in your git tree: this means I can respin > a v18 from a git format-path, correct? While I could replace the previous series with a new version, it would probably just be better to send incremental patches and I can see myself if I fold them into the existing patches or not. > Is your repo the one in > https://git.kernel.org/pub/scm/linux/kernel/git/ij/linux.git/ ? > I see from the web interface that the last modification was > 2 years ago? That's pretty much unused repo. Platform drivers repo is here: https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git -- i.