| Message ID | 20241107060254.17615-1-mario.limonciello@amd.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | Add support for binding ACPI platform profile to multiple drivers | expand |
Am 07.11.24 um 07:02 schrieb Mario Limonciello: > Currently there are a number of ASUS products on the market that happen to > have ACPI objects for amd-pmf to bind to as well as an ACPI platform > profile provided by asus-wmi. > > The ACPI platform profile support created by amd-pmf on these ASUS > products is "Function 9" which is specifically for "BIOS or EC > notification" of power slider position. This feature is actively used > by some designs such as Framework 13 and Framework 16. > > On these ASUS designs we keep on quirking more and more of them to turn > off this notification so that asus-wmi can bind. > > This however isn't how Windows works. "Multiple" things are notified for > the power slider position. This series adjusts Linux to behave similarly. > > Multiple drivers can now register an ACPI platform profile and will react > to set requests. > > To avoid chaos, only positions that are common to both drivers are > accepted when the legacy /sys/firmware/acpi/platform_profile interface > is used. > > This series also adds a new concept of a "custom" profile. This allows > userspace to discover that there are multiple driver handlers that are > configured differently. > > This series also allows dropping all of the PMF quirks from amd-pmf. Thank you for this patch series. The overall design seems good to me, but i think you forgot to extend platform_profile_notify(). Thanks, Armin Wolf > --- > v5: > * Adjust mutex handling > * Add missing error handling > * Drop dev member > * Add cleanup handling for module unload > * Fix crash on accessing legacy files after all drivers unloaded > > Mario Limonciello (20): > ACPI: platform-profile: Add a name member to handlers > platform/x86/dell: dell-pc: Create platform device > ACPI: platform_profile: Add platform handler argument to > platform_profile_remove() > ACPI: platform_profile: Move sanity check out of the mutex > ACPI: platform_profile: Move matching string for new profile out of > mutex > ACPI: platform_profile: Use guard(mutex) for register/unregister > ACPI: platform_profile: Use `scoped_cond_guard` > ACPI: platform_profile: Create class for ACPI platform profile > ACPI: platform_profile: Unregister class and sysfs group on module > unload > ACPI: platform_profile: Add name attribute to class interface > ACPI: platform_profile: Add choices attribute for class interface > ACPI: platform_profile: Add profile attribute for class interface > ACPI: platform_profile: Notify change events on register and > unregister > ACPI: platform_profile: Only show profiles common for all handlers > ACPI: platform_profile: Add concept of a "custom" profile > ACPI: platform_profile: Make sure all profile handlers agree on > profile > ACPI: platform_profile: Check all profile handler to calculate next > ACPI: platform_profile: Allow multiple handlers > platform/x86/amd: pmf: Drop all quirks > Documentation: Add documentation about class interface for platform > profiles > > .../ABI/testing/sysfs-platform_profile | 5 + > .../userspace-api/sysfs-platform_profile.rst | 28 + > drivers/acpi/platform_profile.c | 494 ++++++++++++++---- > .../surface/surface_platform_profile.c | 7 +- > drivers/platform/x86/acer-wmi.c | 5 +- > drivers/platform/x86/amd/pmf/Makefile | 2 +- > drivers/platform/x86/amd/pmf/core.c | 1 - > drivers/platform/x86/amd/pmf/pmf-quirks.c | 66 --- > drivers/platform/x86/amd/pmf/pmf.h | 3 - > drivers/platform/x86/amd/pmf/sps.c | 3 +- > drivers/platform/x86/asus-wmi.c | 5 +- > drivers/platform/x86/dell/alienware-wmi.c | 3 +- > drivers/platform/x86/dell/dell-pc.c | 35 +- > drivers/platform/x86/hp/hp-wmi.c | 3 +- > drivers/platform/x86/ideapad-laptop.c | 3 +- > .../platform/x86/inspur_platform_profile.c | 6 +- > drivers/platform/x86/thinkpad_acpi.c | 3 +- > include/linux/platform_profile.h | 6 +- > 18 files changed, 488 insertions(+), 190 deletions(-) > delete mode 100644 drivers/platform/x86/amd/pmf/pmf-quirks.c > > > base-commit: d68cb6023356af3bd3193983ad4ec03954a0b3e2
On 11/7/2024 03:06, Armin Wolf wrote: > Am 07.11.24 um 07:02 schrieb Mario Limonciello: > >> Currently there are a number of ASUS products on the market that >> happen to >> have ACPI objects for amd-pmf to bind to as well as an ACPI platform >> profile provided by asus-wmi. >> >> The ACPI platform profile support created by amd-pmf on these ASUS >> products is "Function 9" which is specifically for "BIOS or EC >> notification" of power slider position. This feature is actively used >> by some designs such as Framework 13 and Framework 16. >> >> On these ASUS designs we keep on quirking more and more of them to turn >> off this notification so that asus-wmi can bind. >> >> This however isn't how Windows works. "Multiple" things are notified for >> the power slider position. This series adjusts Linux to behave similarly. >> >> Multiple drivers can now register an ACPI platform profile and will react >> to set requests. >> >> To avoid chaos, only positions that are common to both drivers are >> accepted when the legacy /sys/firmware/acpi/platform_profile interface >> is used. >> >> This series also adds a new concept of a "custom" profile. This allows >> userspace to discover that there are multiple driver handlers that are >> configured differently. >> >> This series also allows dropping all of the PMF quirks from amd-pmf. > > Thank you for this patch series. The overall design seems good to me, > but i think > you forgot to extend platform_profile_notify(). What did you have in mind? platform_profile_notify() is called from drivers and just used to notify the legacy sysfs in the event of a change. Were you thinking it also needs to notify the class device perhaps? > > Thanks, > Armin Wolf > >> --- >> v5: >> * Adjust mutex handling >> * Add missing error handling >> * Drop dev member >> * Add cleanup handling for module unload >> * Fix crash on accessing legacy files after all drivers unloaded >> >> Mario Limonciello (20): >> ACPI: platform-profile: Add a name member to handlers >> platform/x86/dell: dell-pc: Create platform device >> ACPI: platform_profile: Add platform handler argument to >> platform_profile_remove() >> ACPI: platform_profile: Move sanity check out of the mutex >> ACPI: platform_profile: Move matching string for new profile out of >> mutex >> ACPI: platform_profile: Use guard(mutex) for register/unregister >> ACPI: platform_profile: Use `scoped_cond_guard` >> ACPI: platform_profile: Create class for ACPI platform profile >> ACPI: platform_profile: Unregister class and sysfs group on module >> unload >> ACPI: platform_profile: Add name attribute to class interface >> ACPI: platform_profile: Add choices attribute for class interface >> ACPI: platform_profile: Add profile attribute for class interface >> ACPI: platform_profile: Notify change events on register and >> unregister >> ACPI: platform_profile: Only show profiles common for all handlers >> ACPI: platform_profile: Add concept of a "custom" profile >> ACPI: platform_profile: Make sure all profile handlers agree on >> profile >> ACPI: platform_profile: Check all profile handler to calculate next >> ACPI: platform_profile: Allow multiple handlers >> platform/x86/amd: pmf: Drop all quirks >> Documentation: Add documentation about class interface for platform >> profiles >> >> .../ABI/testing/sysfs-platform_profile | 5 + >> .../userspace-api/sysfs-platform_profile.rst | 28 + >> drivers/acpi/platform_profile.c | 494 ++++++++++++++---- >> .../surface/surface_platform_profile.c | 7 +- >> drivers/platform/x86/acer-wmi.c | 5 +- >> drivers/platform/x86/amd/pmf/Makefile | 2 +- >> drivers/platform/x86/amd/pmf/core.c | 1 - >> drivers/platform/x86/amd/pmf/pmf-quirks.c | 66 --- >> drivers/platform/x86/amd/pmf/pmf.h | 3 - >> drivers/platform/x86/amd/pmf/sps.c | 3 +- >> drivers/platform/x86/asus-wmi.c | 5 +- >> drivers/platform/x86/dell/alienware-wmi.c | 3 +- >> drivers/platform/x86/dell/dell-pc.c | 35 +- >> drivers/platform/x86/hp/hp-wmi.c | 3 +- >> drivers/platform/x86/ideapad-laptop.c | 3 +- >> .../platform/x86/inspur_platform_profile.c | 6 +- >> drivers/platform/x86/thinkpad_acpi.c | 3 +- >> include/linux/platform_profile.h | 6 +- >> 18 files changed, 488 insertions(+), 190 deletions(-) >> delete mode 100644 drivers/platform/x86/amd/pmf/pmf-quirks.c >> >> >> base-commit: d68cb6023356af3bd3193983ad4ec03954a0b3e2
Am 07.11.24 um 22:45 schrieb Mario Limonciello: > On 11/7/2024 03:06, Armin Wolf wrote: >> Am 07.11.24 um 07:02 schrieb Mario Limonciello: >> >>> Currently there are a number of ASUS products on the market that >>> happen to >>> have ACPI objects for amd-pmf to bind to as well as an ACPI platform >>> profile provided by asus-wmi. >>> >>> The ACPI platform profile support created by amd-pmf on these ASUS >>> products is "Function 9" which is specifically for "BIOS or EC >>> notification" of power slider position. This feature is actively used >>> by some designs such as Framework 13 and Framework 16. >>> >>> On these ASUS designs we keep on quirking more and more of them to turn >>> off this notification so that asus-wmi can bind. >>> >>> This however isn't how Windows works. "Multiple" things are >>> notified for >>> the power slider position. This series adjusts Linux to behave >>> similarly. >>> >>> Multiple drivers can now register an ACPI platform profile and will >>> react >>> to set requests. >>> >>> To avoid chaos, only positions that are common to both drivers are >>> accepted when the legacy /sys/firmware/acpi/platform_profile interface >>> is used. >>> >>> This series also adds a new concept of a "custom" profile. This allows >>> userspace to discover that there are multiple driver handlers that are >>> configured differently. >>> >>> This series also allows dropping all of the PMF quirks from amd-pmf. >> >> Thank you for this patch series. The overall design seems good to me, >> but i think >> you forgot to extend platform_profile_notify(). > > What did you have in mind? platform_profile_notify() is called from > drivers and just used to notify the legacy sysfs in the event of a > change. > > Were you thinking it also needs to notify the class device perhaps? > If platform_profile_notify() only notifies the legacy sysfs interface, then userspace applications are forced to continue using the legacy sysfs interface for receiving notifications. Thanks, Armin Wolf >> >> Thanks, >> Armin Wolf >> >>> --- >>> v5: >>> * Adjust mutex handling >>> * Add missing error handling >>> * Drop dev member >>> * Add cleanup handling for module unload >>> * Fix crash on accessing legacy files after all drivers unloaded >>> >>> Mario Limonciello (20): >>> ACPI: platform-profile: Add a name member to handlers >>> platform/x86/dell: dell-pc: Create platform device >>> ACPI: platform_profile: Add platform handler argument to >>> platform_profile_remove() >>> ACPI: platform_profile: Move sanity check out of the mutex >>> ACPI: platform_profile: Move matching string for new profile out of >>> mutex >>> ACPI: platform_profile: Use guard(mutex) for register/unregister >>> ACPI: platform_profile: Use `scoped_cond_guard` >>> ACPI: platform_profile: Create class for ACPI platform profile >>> ACPI: platform_profile: Unregister class and sysfs group on module >>> unload >>> ACPI: platform_profile: Add name attribute to class interface >>> ACPI: platform_profile: Add choices attribute for class interface >>> ACPI: platform_profile: Add profile attribute for class interface >>> ACPI: platform_profile: Notify change events on register and >>> unregister >>> ACPI: platform_profile: Only show profiles common for all handlers >>> ACPI: platform_profile: Add concept of a "custom" profile >>> ACPI: platform_profile: Make sure all profile handlers agree on >>> profile >>> ACPI: platform_profile: Check all profile handler to calculate next >>> ACPI: platform_profile: Allow multiple handlers >>> platform/x86/amd: pmf: Drop all quirks >>> Documentation: Add documentation about class interface for platform >>> profiles >>> >>> .../ABI/testing/sysfs-platform_profile | 5 + >>> .../userspace-api/sysfs-platform_profile.rst | 28 + >>> drivers/acpi/platform_profile.c | 494 >>> ++++++++++++++---- >>> .../surface/surface_platform_profile.c | 7 +- >>> drivers/platform/x86/acer-wmi.c | 5 +- >>> drivers/platform/x86/amd/pmf/Makefile | 2 +- >>> drivers/platform/x86/amd/pmf/core.c | 1 - >>> drivers/platform/x86/amd/pmf/pmf-quirks.c | 66 --- >>> drivers/platform/x86/amd/pmf/pmf.h | 3 - >>> drivers/platform/x86/amd/pmf/sps.c | 3 +- >>> drivers/platform/x86/asus-wmi.c | 5 +- >>> drivers/platform/x86/dell/alienware-wmi.c | 3 +- >>> drivers/platform/x86/dell/dell-pc.c | 35 +- >>> drivers/platform/x86/hp/hp-wmi.c | 3 +- >>> drivers/platform/x86/ideapad-laptop.c | 3 +- >>> .../platform/x86/inspur_platform_profile.c | 6 +- >>> drivers/platform/x86/thinkpad_acpi.c | 3 +- >>> include/linux/platform_profile.h | 6 +- >>> 18 files changed, 488 insertions(+), 190 deletions(-) >>> delete mode 100644 drivers/platform/x86/amd/pmf/pmf-quirks.c >>> >>> >>> base-commit: d68cb6023356af3bd3193983ad4ec03954a0b3e2 > >
Currently there are a number of ASUS products on the market that happen to have ACPI objects for amd-pmf to bind to as well as an ACPI platform profile provided by asus-wmi. The ACPI platform profile support created by amd-pmf on these ASUS products is "Function 9" which is specifically for "BIOS or EC notification" of power slider position. This feature is actively used by some designs such as Framework 13 and Framework 16. On these ASUS designs we keep on quirking more and more of them to turn off this notification so that asus-wmi can bind. This however isn't how Windows works. "Multiple" things are notified for the power slider position. This series adjusts Linux to behave similarly. Multiple drivers can now register an ACPI platform profile and will react to set requests. To avoid chaos, only positions that are common to both drivers are accepted when the legacy /sys/firmware/acpi/platform_profile interface is used. This series also adds a new concept of a "custom" profile. This allows userspace to discover that there are multiple driver handlers that are configured differently. This series also allows dropping all of the PMF quirks from amd-pmf. --- v5: * Adjust mutex handling * Add missing error handling * Drop dev member * Add cleanup handling for module unload * Fix crash on accessing legacy files after all drivers unloaded Mario Limonciello (20): ACPI: platform-profile: Add a name member to handlers platform/x86/dell: dell-pc: Create platform device ACPI: platform_profile: Add platform handler argument to platform_profile_remove() ACPI: platform_profile: Move sanity check out of the mutex ACPI: platform_profile: Move matching string for new profile out of mutex ACPI: platform_profile: Use guard(mutex) for register/unregister ACPI: platform_profile: Use `scoped_cond_guard` ACPI: platform_profile: Create class for ACPI platform profile ACPI: platform_profile: Unregister class and sysfs group on module unload ACPI: platform_profile: Add name attribute to class interface ACPI: platform_profile: Add choices attribute for class interface ACPI: platform_profile: Add profile attribute for class interface ACPI: platform_profile: Notify change events on register and unregister ACPI: platform_profile: Only show profiles common for all handlers ACPI: platform_profile: Add concept of a "custom" profile ACPI: platform_profile: Make sure all profile handlers agree on profile ACPI: platform_profile: Check all profile handler to calculate next ACPI: platform_profile: Allow multiple handlers platform/x86/amd: pmf: Drop all quirks Documentation: Add documentation about class interface for platform profiles .../ABI/testing/sysfs-platform_profile | 5 + .../userspace-api/sysfs-platform_profile.rst | 28 + drivers/acpi/platform_profile.c | 494 ++++++++++++++---- .../surface/surface_platform_profile.c | 7 +- drivers/platform/x86/acer-wmi.c | 5 +- drivers/platform/x86/amd/pmf/Makefile | 2 +- drivers/platform/x86/amd/pmf/core.c | 1 - drivers/platform/x86/amd/pmf/pmf-quirks.c | 66 --- drivers/platform/x86/amd/pmf/pmf.h | 3 - drivers/platform/x86/amd/pmf/sps.c | 3 +- drivers/platform/x86/asus-wmi.c | 5 +- drivers/platform/x86/dell/alienware-wmi.c | 3 +- drivers/platform/x86/dell/dell-pc.c | 35 +- drivers/platform/x86/hp/hp-wmi.c | 3 +- drivers/platform/x86/ideapad-laptop.c | 3 +- .../platform/x86/inspur_platform_profile.c | 6 +- drivers/platform/x86/thinkpad_acpi.c | 3 +- include/linux/platform_profile.h | 6 +- 18 files changed, 488 insertions(+), 190 deletions(-) delete mode 100644 drivers/platform/x86/amd/pmf/pmf-quirks.c base-commit: d68cb6023356af3bd3193983ad4ec03954a0b3e2