mbox series

[v10,00/22] Add support for binding ACPI platform profile to multiple drivers

Message ID 20241206031918.1537-1-mario.limonciello@amd.com
Headers show
Series Add support for binding ACPI platform profile to multiple drivers | expand

Message

Mario Limonciello Dec. 6, 2024, 3:18 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.

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.

v10:
 * Whitespace changes
 * Documentation update for custom in a single driver

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  |  38 ++
 drivers/acpi/platform_profile.c               | 534 ++++++++++++++----
 .../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, 559 insertions(+), 214 deletions(-)
 delete mode 100644 drivers/platform/x86/amd/pmf/pmf-quirks.c

Comments

Ilpo Järvinen Dec. 10, 2024, 5:30 p.m. UTC | #1
Hi Rafael,

This series seems ready and Mario has requested it to be merged through 
platform drivers tree despite majority of changes touching 
drivers/acpi/platform_profile.c because its API relates to many pdx86 
drivers.

Is that fine with you?

On Thu, 5 Dec 2024, Mario Limonciello 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.
> 
> 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.
> 
> v10:
>  * Whitespace changes
>  * Documentation update for custom in a single driver
> 
> 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  |  38 ++
>  drivers/acpi/platform_profile.c               | 534 ++++++++++++++----
>  .../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, 559 insertions(+), 214 deletions(-)
>  delete mode 100644 drivers/platform/x86/amd/pmf/pmf-quirks.c
Rafael J. Wysocki Dec. 10, 2024, 5:38 p.m. UTC | #2
Hi Ilpo,

On Tue, Dec 10, 2024 at 6:30 PM Ilpo Järvinen
<ilpo.jarvinen@linux.intel.com> wrote:
>
> Hi Rafael,
>
> This series seems ready and Mario has requested it to be merged through
> platform drivers tree despite majority of changes touching
> drivers/acpi/platform_profile.c because its API relates to many pdx86
> drivers.
>
> Is that fine with you?

Yes, it is, thanks!

> On Thu, 5 Dec 2024, Mario Limonciello 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.
> >
> > 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.
> >
> > v10:
> >  * Whitespace changes
> >  * Documentation update for custom in a single driver
> >
> > 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  |  38 ++
> >  drivers/acpi/platform_profile.c               | 534 ++++++++++++++----
> >  .../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, 559 insertions(+), 214 deletions(-)
> >  delete mode 100644 drivers/platform/x86/amd/pmf/pmf-quirks.c
>
> --
>  i.
>
Ilpo Järvinen Dec. 12, 2024, 2:11 p.m. UTC | #3
On Tue, 10 Dec 2024, Rafael J. Wysocki wrote:

> Hi Ilpo,
> 
> On Tue, Dec 10, 2024 at 6:30 PM Ilpo Järvinen
> <ilpo.jarvinen@linux.intel.com> wrote:
> >
> > Hi Rafael,
> >
> > This series seems ready and Mario has requested it to be merged through
> > platform drivers tree despite majority of changes touching
> > drivers/acpi/platform_profile.c because its API relates to many pdx86
> > drivers.
> >
> > Is that fine with you?
> 
> Yes, it is, thanks!

Thanks all.

The series has been applied into pdx86/platform-drivers-x86-platform-profile 
and then merged into the for-next branch.