| Message ID | 20241202055031.8038-1-mario.limonciello@amd.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | Add support for binding ACPI platform profile to multiple drivers | expand |
Am 02.12.24 um 06:50 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. > > NOTE: Although this series changes code in acpi platform profile, I think > it is better to go through the platform-x86 tree as more drivers can > be introduced during the kernel cycle and should make the changes to > support class interface when merging. Thanks for all the good work, the whole series looks good to me. Thanks, Armin Wolf > --- > v9: > - Rebase on top of 6.13-rc1 tag > - Fix LKP reported issues on patch 2 > - Use Markus' logic update suggestion > > Mario Limonciello (22): > ACPI: platform-profile: Add a name member to handlers > platform/x86/dell: dell-pc: Create platform device > ACPI: platform_profile: Add device pointer into platform profile > handler > ACPI: platform_profile: Add platform handler argument to > platform_profile_remove() > ACPI: platform_profile: Pass the profile handler into > platform_profile_notify() > 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: 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: Notify class device from > platform_profile_notify() > 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 | 31 ++ > drivers/acpi/platform_profile.c | 523 ++++++++++++++---- > .../surface/surface_platform_profile.c | 8 +- > drivers/platform/x86/acer-wmi.c | 12 +- > 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 | 4 +- > drivers/platform/x86/asus-wmi.c | 8 +- > drivers/platform/x86/dell/alienware-wmi.c | 8 +- > drivers/platform/x86/dell/dell-pc.c | 38 +- > drivers/platform/x86/hp/hp-wmi.c | 8 +- > drivers/platform/x86/ideapad-laptop.c | 6 +- > .../platform/x86/inspur_platform_profile.c | 7 +- > drivers/platform/x86/thinkpad_acpi.c | 16 +- > include/linux/platform_profile.h | 9 +- > 18 files changed, 541 insertions(+), 214 deletions(-) > delete mode 100644 drivers/platform/x86/amd/pmf/pmf-quirks.c >
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. NOTE: Although this series changes code in acpi platform profile, I think it is better to go through the platform-x86 tree as more drivers can be introduced during the kernel cycle and should make the changes to support class interface when merging. --- v9: - Rebase on top of 6.13-rc1 tag - Fix LKP reported issues on patch 2 - Use Markus' logic update suggestion Mario Limonciello (22): ACPI: platform-profile: Add a name member to handlers platform/x86/dell: dell-pc: Create platform device ACPI: platform_profile: Add device pointer into platform profile handler ACPI: platform_profile: Add platform handler argument to platform_profile_remove() ACPI: platform_profile: Pass the profile handler into platform_profile_notify() 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: 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: Notify class device from platform_profile_notify() 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 | 31 ++ drivers/acpi/platform_profile.c | 523 ++++++++++++++---- .../surface/surface_platform_profile.c | 8 +- drivers/platform/x86/acer-wmi.c | 12 +- 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 | 4 +- drivers/platform/x86/asus-wmi.c | 8 +- drivers/platform/x86/dell/alienware-wmi.c | 8 +- drivers/platform/x86/dell/dell-pc.c | 38 +- drivers/platform/x86/hp/hp-wmi.c | 8 +- drivers/platform/x86/ideapad-laptop.c | 6 +- .../platform/x86/inspur_platform_profile.c | 7 +- drivers/platform/x86/thinkpad_acpi.c | 16 +- include/linux/platform_profile.h | 9 +- 18 files changed, 541 insertions(+), 214 deletions(-) delete mode 100644 drivers/platform/x86/amd/pmf/pmf-quirks.c