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[v4,00/11] platform/x86/amd/pmf: Introduce AMD PMF Driver

Message ID 20220802151149.2123699-1-Shyam-sundar.S-k@amd.com (mailing list archive)
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Series platform/x86/amd/pmf: Introduce AMD PMF Driver | expand

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Shyam Sundar S K Aug. 2, 2022, 3:11 p.m. UTC
AMD PMF Driver (a.k.a Platform Management Framework) provides a
centralized framework based on sensor inputs, OS hints, platform state
and APU metrics to dynamically manage perf, power and system thermals.

The goal of the driver is to enhance end user experience by making AMD
PCs smarter, quieter, power efficient by adapting to user behavior and
environment.

The larger goals include:

- Enable easy customization of smart PC solutions by OEMs.
- Provide a framework for OEMs to add in custom algorithms and solutions
- Improve standby and dynamic platform power through active power
  management of platform devices.

In this series, support for following features has been added.
- "Static Power Slider" meant to manage the power budget based on the
  power modes or the slider position.
- "Auto Mode" tracks the moving power average of the APU and takes
  intelligent decisions to switch between different modes.

Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>

v4:
-----------
- Remove duplicate variables in auto_mode_mode_config() structure
- call apmf_event_handler() handler manually so that we don't miss out
  any notifies
- Misc. error handling.

v3:
-----------
- Cleanup ACPI code path
- Optimize metrics table collection mechanism
- Avoid races between the acpi handler and the metrics table worker
  thread.
- Remove redundant structures and functions.
- Improve the code handling the apmf handler routine.

v2 Resend:
-----------
- Patches from 9 to 11 were not sent due to wrong email address. Hence
  resending.

v1->v2:
-------
- optimize the ACPI path by having a common routine
  apmf_if_call_store_buffer()
- Simply Static slider interaction with platform_profile
- Remove CONFIG_DEBUG_FS stub code
- Drop changes introduced in platform_profile_get()
- Drop CnQF support. Will be sent as a patch-set later.
- Other code improvements

Shyam Sundar S K (11):
  platform/x86/amd/pmf: Add support for PMF core layer
  platform/x86/amd/pmf: Add support for PMF APCI layer
  platform/x86/amd/pmf: Add support SPS PMF feature
  platform/x86/amd/pmf: Add debugfs information
  platform/x86/amd/pmf: Add heartbeat signal support
  platform/x86/amd/pmf: Add fan control support
  platform/x86/amd/pmf: Get performance metrics from PMFW
  platform/x86/amd/pmf: Add support for Auto mode feature
  platform/x86/amd/pmf: Handle AMT and CQL events for Auto mode
  platform/x86/amd/pmf: Force load driver on older supported platforms
  MAINTAINERS: Add AMD PMF driver entry

 MAINTAINERS                              |   7 +
 drivers/platform/x86/amd/Kconfig         |   2 +
 drivers/platform/x86/amd/Makefile        |   1 +
 drivers/platform/x86/amd/pmf/Kconfig     |  15 +
 drivers/platform/x86/amd/pmf/Makefile    |   9 +
 drivers/platform/x86/amd/pmf/acpi.c      | 287 +++++++++++++++++
 drivers/platform/x86/amd/pmf/auto-mode.c | 301 ++++++++++++++++++
 drivers/platform/x86/amd/pmf/core.c      | 385 +++++++++++++++++++++++
 drivers/platform/x86/amd/pmf/pmf.h       | 329 +++++++++++++++++++
 drivers/platform/x86/amd/pmf/sps.c       | 149 +++++++++
 10 files changed, 1485 insertions(+)
 create mode 100644 drivers/platform/x86/amd/pmf/Kconfig
 create mode 100644 drivers/platform/x86/amd/pmf/Makefile
 create mode 100644 drivers/platform/x86/amd/pmf/acpi.c
 create mode 100644 drivers/platform/x86/amd/pmf/auto-mode.c
 create mode 100644 drivers/platform/x86/amd/pmf/core.c
 create mode 100644 drivers/platform/x86/amd/pmf/pmf.h
 create mode 100644 drivers/platform/x86/amd/pmf/sps.c

Comments

Hans de Goede Aug. 5, 2022, 11:16 a.m. UTC | #1
Hi,

On 8/2/22 17:11, Shyam Sundar S K wrote:
> AMD PMF Driver (a.k.a Platform Management Framework) provides a
> centralized framework based on sensor inputs, OS hints, platform state
> and APU metrics to dynamically manage perf, power and system thermals.
> 
> The goal of the driver is to enhance end user experience by making AMD
> PCs smarter, quieter, power efficient by adapting to user behavior and
> environment.
> 
> The larger goals include:
> 
> - Enable easy customization of smart PC solutions by OEMs.
> - Provide a framework for OEMs to add in custom algorithms and solutions
> - Improve standby and dynamic platform power through active power
>   management of platform devices.
> 
> In this series, support for following features has been added.
> - "Static Power Slider" meant to manage the power budget based on the
>   power modes or the slider position.
> - "Auto Mode" tracks the moving power average of the APU and takes
>   intelligent decisions to switch between different modes.
> 
> Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
> 
> v4:
> -----------
> - Remove duplicate variables in auto_mode_mode_config() structure
> - call apmf_event_handler() handler manually so that we don't miss out
>   any notifies
> - Misc. error handling.

Thank you for your patch, I've applied this patch to my review-hans 
branch:
https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=review-hans

The patches sitting here allows the LKP testing infra to test
the patches. I will move these over to a 6.0-rc1 based feature
branch once 6.0-rc1 is out.

Note I did do a few small last fixes while merging this, see
my replies to individual patches.

Please test the version in the review-hans branch and base
any future patches on top of the version in the review-hans
branch.

Regards,

Hans


> v3:
> -----------
> - Cleanup ACPI code path
> - Optimize metrics table collection mechanism
> - Avoid races between the acpi handler and the metrics table worker
>   thread.
> - Remove redundant structures and functions.
> - Improve the code handling the apmf handler routine.
> 
> v2 Resend:
> -----------
> - Patches from 9 to 11 were not sent due to wrong email address. Hence
>   resending.
> 
> v1->v2:
> -------
> - optimize the ACPI path by having a common routine
>   apmf_if_call_store_buffer()
> - Simply Static slider interaction with platform_profile
> - Remove CONFIG_DEBUG_FS stub code
> - Drop changes introduced in platform_profile_get()
> - Drop CnQF support. Will be sent as a patch-set later.
> - Other code improvements
> 
> Shyam Sundar S K (11):
>   platform/x86/amd/pmf: Add support for PMF core layer
>   platform/x86/amd/pmf: Add support for PMF APCI layer
>   platform/x86/amd/pmf: Add support SPS PMF feature
>   platform/x86/amd/pmf: Add debugfs information
>   platform/x86/amd/pmf: Add heartbeat signal support
>   platform/x86/amd/pmf: Add fan control support
>   platform/x86/amd/pmf: Get performance metrics from PMFW
>   platform/x86/amd/pmf: Add support for Auto mode feature
>   platform/x86/amd/pmf: Handle AMT and CQL events for Auto mode
>   platform/x86/amd/pmf: Force load driver on older supported platforms
>   MAINTAINERS: Add AMD PMF driver entry
> 
>  MAINTAINERS                              |   7 +
>  drivers/platform/x86/amd/Kconfig         |   2 +
>  drivers/platform/x86/amd/Makefile        |   1 +
>  drivers/platform/x86/amd/pmf/Kconfig     |  15 +
>  drivers/platform/x86/amd/pmf/Makefile    |   9 +
>  drivers/platform/x86/amd/pmf/acpi.c      | 287 +++++++++++++++++
>  drivers/platform/x86/amd/pmf/auto-mode.c | 301 ++++++++++++++++++
>  drivers/platform/x86/amd/pmf/core.c      | 385 +++++++++++++++++++++++
>  drivers/platform/x86/amd/pmf/pmf.h       | 329 +++++++++++++++++++
>  drivers/platform/x86/amd/pmf/sps.c       | 149 +++++++++
>  10 files changed, 1485 insertions(+)
>  create mode 100644 drivers/platform/x86/amd/pmf/Kconfig
>  create mode 100644 drivers/platform/x86/amd/pmf/Makefile
>  create mode 100644 drivers/platform/x86/amd/pmf/acpi.c
>  create mode 100644 drivers/platform/x86/amd/pmf/auto-mode.c
>  create mode 100644 drivers/platform/x86/amd/pmf/core.c
>  create mode 100644 drivers/platform/x86/amd/pmf/pmf.h
>  create mode 100644 drivers/platform/x86/amd/pmf/sps.c
>