[v2,RESEND,00/11] platform/x86/amd/pmf: Introduce AMD PMF Driver

Message

Shyam Sundar S K July 28, 2022, 6:20 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 <[e-mail]>

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     |  16 +
 drivers/platform/x86/amd/pmf/Makefile    |   9 +
 drivers/platform/x86/amd/pmf/acpi.c      | 320 ++++++++++++++++++
 drivers/platform/x86/amd/pmf/auto-mode.c | 339 +++++++++++++++++++
 drivers/platform/x86/amd/pmf/core.c      | 412 +++++++++++++++++++++++
 drivers/platform/x86/amd/pmf/pmf.h       | 346 +++++++++++++++++++
 drivers/platform/x86/amd/pmf/sps.c       | 152 +++++++++
 10 files changed, 1604 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