mbox series

[v6,00/22] Add support for binding ACPI platform profile to multiple drivers

Message ID 20241109044151.29804-1-mario.limonciello@amd.com (mailing list archive)
Headers show
Series Add support for binding ACPI platform profile to multiple drivers | expand

Message

Mario Limonciello Nov. 9, 2024, 4:41 a.m. UTC
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.

---
v6:
 * Add patch dev patch but don't make mandatory
 * See other patches changelogs for individualized changes

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  |  28 +
 drivers/acpi/platform_profile.c               | 537 ++++++++++++++----
 .../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               |  10 +-
 drivers/platform/x86/dell/alienware-wmi.c     |   8 +-
 drivers/platform/x86/dell/dell-pc.c           |  36 +-
 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, 553 insertions(+), 213 deletions(-)
 delete mode 100644 drivers/platform/x86/amd/pmf/pmf-quirks.c


base-commit: d68cb6023356af3bd3193983ad4ec03954a0b3e2

Comments

Rafael J. Wysocki Nov. 12, 2024, 8:16 p.m. UTC | #1
On Sat, Nov 9, 2024 at 5:42 AM Mario Limonciello
<mario.limonciello@amd.com> wrote:
>
> 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.
>
> ---
> v6:
>  * Add patch dev patch but don't make mandatory

Probably a typo?

Which patch is it, BTW?

In any case, if the merge window for 6.13 starts on the upcoming
weekend, which is likely to happen AFAICS, I'll defer applying this
series until 6.13-rc1 is out.

It's larger and it's been changing too often recently for me to catch
up and I'll be much more comfortable if it spends some time in
linux-next before going into the mainline (and not during a merge
window for that matter).

>  * See other patches changelogs for individualized changes
>
> 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  |  28 +
>  drivers/acpi/platform_profile.c               | 537 ++++++++++++++----
>  .../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               |  10 +-
>  drivers/platform/x86/dell/alienware-wmi.c     |   8 +-
>  drivers/platform/x86/dell/dell-pc.c           |  36 +-
>  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, 553 insertions(+), 213 deletions(-)
>  delete mode 100644 drivers/platform/x86/amd/pmf/pmf-quirks.c
>
>
> base-commit: d68cb6023356af3bd3193983ad4ec03954a0b3e2
> --
> 2.43.0
>
Mario Limonciello Nov. 12, 2024, 8:20 p.m. UTC | #2
On 11/12/2024 14:16, Rafael J. Wysocki wrote:
> On Sat, Nov 9, 2024 at 5:42 AM Mario Limonciello
> <mario.limonciello@amd.com> wrote:
>>
>> 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.
>>
>> ---
>> v6:
>>   * Add patch dev patch but don't make mandatory
> 
> Probably a typo?

Ah whoops, yes.

> 
> Which patch is it, BTW?

Patch 3.

> 
> In any case, if the merge window for 6.13 starts on the upcoming
> weekend, which is likely to happen AFAICS, I'll defer applying this
> series until 6.13-rc1 is out.
> 
> It's larger and it's been changing too often recently for me to catch
> up and I'll be much more comfortable if it spends some time in
> linux-next before going into the mainline (and not during a merge
> window for that matter).
> 

I'm thankful; Armin ended up having a lot of very valuable feedback.

Yeah, it makes sense to defer to next cycle.

Would you prefer me to rebase and resend as v7 after the merge window or 
will you just add it to a TODO?

>>   * See other patches changelogs for individualized changes
>>
>> 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  |  28 +
>>   drivers/acpi/platform_profile.c               | 537 ++++++++++++++----
>>   .../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               |  10 +-
>>   drivers/platform/x86/dell/alienware-wmi.c     |   8 +-
>>   drivers/platform/x86/dell/dell-pc.c           |  36 +-
>>   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, 553 insertions(+), 213 deletions(-)
>>   delete mode 100644 drivers/platform/x86/amd/pmf/pmf-quirks.c
>>
>>
>> base-commit: d68cb6023356af3bd3193983ad4ec03954a0b3e2
>> --
>> 2.43.0
>>
Rafael J. Wysocki Nov. 12, 2024, 8:25 p.m. UTC | #3
On Tue, Nov 12, 2024 at 9:20 PM Mario Limonciello
<mario.limonciello@amd.com> wrote:
>
> On 11/12/2024 14:16, Rafael J. Wysocki wrote:
> > On Sat, Nov 9, 2024 at 5:42 AM Mario Limonciello
> > <mario.limonciello@amd.com> wrote:
> >>
> >> 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.
> >>
> >> ---
> >> v6:
> >>   * Add patch dev patch but don't make mandatory
> >
> > Probably a typo?
>
> Ah whoops, yes.
>
> >
> > Which patch is it, BTW?
>
> Patch 3.
>
> >
> > In any case, if the merge window for 6.13 starts on the upcoming
> > weekend, which is likely to happen AFAICS, I'll defer applying this
> > series until 6.13-rc1 is out.
> >
> > It's larger and it's been changing too often recently for me to catch
> > up and I'll be much more comfortable if it spends some time in
> > linux-next before going into the mainline (and not during a merge
> > window for that matter).
> >
>
> I'm thankful; Armin ended up having a lot of very valuable feedback.
>
> Yeah, it makes sense to defer to next cycle.
>
> Would you prefer me to rebase and resend as v7 after the merge window or
> will you just add it to a TODO?

If rebasing is needed, it will be welcome.  Also if you need/want to
make any changes in the meantime, please respin.  Otherwise I can just
pick up the current series.

> >>   * See other patches changelogs for individualized changes
> >>
> >> 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  |  28 +
> >>   drivers/acpi/platform_profile.c               | 537 ++++++++++++++----
> >>   .../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               |  10 +-
> >>   drivers/platform/x86/dell/alienware-wmi.c     |   8 +-
> >>   drivers/platform/x86/dell/dell-pc.c           |  36 +-
> >>   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, 553 insertions(+), 213 deletions(-)
> >>   delete mode 100644 drivers/platform/x86/amd/pmf/pmf-quirks.c
> >>
> >>
> >> base-commit: d68cb6023356af3bd3193983ad4ec03954a0b3e2
> >> --
> >> 2.43.0
> >>
>
Armin Wolf Nov. 14, 2024, 9:57 p.m. UTC | #4
Am 09.11.24 um 05:41 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.

Sorry for taking a bit long to respond, i am currently quite busy. I will try to review this series
in the coming days.

Thanks,
Armin Wolf

> ---
> v6:
>   * Add patch dev patch but don't make mandatory
>   * See other patches changelogs for individualized changes
>
> 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  |  28 +
>   drivers/acpi/platform_profile.c               | 537 ++++++++++++++----
>   .../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               |  10 +-
>   drivers/platform/x86/dell/alienware-wmi.c     |   8 +-
>   drivers/platform/x86/dell/dell-pc.c           |  36 +-
>   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, 553 insertions(+), 213 deletions(-)
>   delete mode 100644 drivers/platform/x86/amd/pmf/pmf-quirks.c
>
>
> base-commit: d68cb6023356af3bd3193983ad4ec03954a0b3e2
Armin Wolf Nov. 18, 2024, 9:05 p.m. UTC | #5
Am 14.11.24 um 22:57 schrieb Armin Wolf:

> Am 09.11.24 um 05:41 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.
>
> Sorry for taking a bit long to respond, i am currently quite busy. I
> will try to review this series
> in the coming days.
>
> Thanks,
> Armin Wolf
>
So far the patch series looks quite good, but a single issue remains: the locking around the class attributes.
Maybe someone with some knowledge about sysfs can help us here.

Also can you please rebase the patch series onto the current for-net branch? This would solve a merge conflict
inside the asus-wmi driver.

Thanks,
Armin WOlf

>> ---
>> v6:
>>   * Add patch dev patch but don't make mandatory
>>   * See other patches changelogs for individualized changes
>>
>> 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  |  28 +
>>   drivers/acpi/platform_profile.c               | 537 ++++++++++++++----
>>   .../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               |  10 +-
>>   drivers/platform/x86/dell/alienware-wmi.c     |   8 +-
>>   drivers/platform/x86/dell/dell-pc.c           |  36 +-
>>   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, 553 insertions(+), 213 deletions(-)
>>   delete mode 100644 drivers/platform/x86/amd/pmf/pmf-quirks.c
>>
>>
>> base-commit: d68cb6023356af3bd3193983ad4ec03954a0b3e2
>
Mario Limonciello Nov. 19, 2024, 4:13 a.m. UTC | #6
On 11/18/2024 15:05, Armin Wolf wrote:
> Am 14.11.24 um 22:57 schrieb Armin Wolf:
> 
>> Am 09.11.24 um 05:41 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.
>>
>> Sorry for taking a bit long to respond, i am currently quite busy. I
>> will try to review this series
>> in the coming days.
>>
>> Thanks,
>> Armin Wolf
>>
> So far the patch series looks quite good, but a single issue remains: 
> the locking around the class attributes.
> Maybe someone with some knowledge about sysfs can help us here.
> 
> Also can you please rebase the patch series onto the current for-net 
> branch? This would solve a merge conflict
> inside the asus-wmi driver.

Yeah; I've done this locally.  I was going to wait until 6.13-rc1 to 
send it out, but I guess if we don't have any other merge conflicts 
coming in this code I'll send it after we are in agreement on the 
locking and I do some more testing.

> 
> Thanks,
> Armin WOlf
> 
>>> ---
>>> v6:
>>>   * Add patch dev patch but don't make mandatory
>>>   * See other patches changelogs for individualized changes
>>>
>>> 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  |  28 +
>>>   drivers/acpi/platform_profile.c               | 537 ++++++++++++++----
>>>   .../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               |  10 +-
>>>   drivers/platform/x86/dell/alienware-wmi.c     |   8 +-
>>>   drivers/platform/x86/dell/dell-pc.c           |  36 +-
>>>   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, 553 insertions(+), 213 deletions(-)
>>>   delete mode 100644 drivers/platform/x86/amd/pmf/pmf-quirks.c
>>>
>>>
>>> base-commit: d68cb6023356af3bd3193983ad4ec03954a0b3e2
>>