[edk2-devel] [PATCH v5 00/11] DynamicTablesPkg: Enable _PSD/_CPC generation using SCMI

["PierreGondois" <pierre.gondois@arm.com>]

v1:
- https://edk2.groups.io/g/devel/message/104115
v2:
- https://edk2.groups.io/g/devel/message/104115
- Rebase patches on latest version.
v3:
- https://edk2.groups.io/g/devel/message/111567
[PATCH 01/11] ArmPkg/ArmScmiDxe: Rename PERFORMANCE_PROTOCOL_VERSION
- Note the referenced spec spec is SCMI v3.2
[PATCH 02/11] ArmPkg/ArmScmiDxe: Add PERFORMANCE_DESCRIBE_FASTCHANNEL support
- Note the referenced spec spec is SCMI v3.2
- Move SCMI_MESSAGE_ID_PERFORMANCE enum definition out of #pragma pack(1)
[PATCH 03/11] MdePkg/Acpi65: Add _PSD/_CPC/State Coordination Types macros
- Macros used to be added to ACPI 6.4 definition file, move them to the
  latest ACPI 6.5 definition file
[PATCH 10/11] DynamicTablesPkg: Add DynamicTablesScmiInfoLib
- Renamed ArmScmiInfoLib to DynamicTablesScmiInfoLib
[PATCH 11/11] DynamicTablesPkg: Remove check for _CPC field
- Add warning when missing one of the bypassed field
All patches:
- Rebase on latest master
- Use ACPI 6.5 definitions instead of 6.4 previously
v4:
- https://edk2.groups.io/g/devel/message/112378
- Extracted and submitted patch:
  - MdePkg/IndustryStandard: Add _PSD/_CPC/Coord types definitions
  separately at: [1]
v5:
[PATCH v4 05/10] DynamicTablesPkg: Add CM_ARM_PSD_INFO object
- Updated format from "0x%llx" -> "0x%x"
[PATCH v4 07/10] DynamicTablesPkg: Add AmlCreatePsdNode() to generate _PSD
- Corrected error handling
[PATCH v4 09/10] DynamicTablesPkg: Add DynamicTablesScmiInfoLib
- Moved DynamicTablesScmiInfoLib library to AARCH64 section
[PATCH v4 10/10] DynamicTablesPkg: Remove check for _CPC field
- Added a patch 'DynamicTablesPkg: Add PcdDevelopmentPlatformRelaxations Pcd'
  and make use of the new Pcd

The SCMI performance protocol allows to query the Operating Performance
Points (OPPs) available for each performance domain. Each OPP has a
specific frequency/power consumption/performance.

On Device Tree (DT) based platforms, the SCMI protocol is directly
available from the OS.
On ACPI based platforms, the _PSD objects allows to identify CPUs
belonging
to the same performance domain. CPUs belonging to the same performance
domain have the same frequency. The _CPC object allows to
describe/control the performance level/frequency of a CPU (i.e. its
frequency).

This patchset:
- Add support for 'DescribeFastchannel' SCMI performance protocol
- Add a object to the DynamicTablesPkg to describe the PSD information
- Allows to generate _PSD objects in the SsdtCpuTopologyGenerator
- Add a ArmScmiInfoLib library populating DynamicTablesPkg CPC objects,
  relying on the SCMI protocol to fetch the relevant information

A patchset for Juno-r2 platforms will be submitted to demonstrate
this functionality.

[1] https://edk2.groups.io/g/devel/message/111901

Pierre Gondois (11):
  ArmPkg/ArmScmiDxe: Rename PERFORMANCE_PROTOCOL_VERSION
  ArmPkg/ArmScmiDxe: Add PERFORMANCE_DESCRIBE_FASTCHANNEL support
  DynamicTablesPkg: Use new CPC revision macro
  DynamicTablesPkg: Rename AmlCpcInfo.h to AcpiObjects.h
  DynamicTablesPkg: Add CM_ARM_PSD_INFO object
  DynamicTablesPkg: Add PsdToken field to CM_ARM_GICC_INFO object
  DynamicTablesPkg: Add AmlCreatePsdNode() to generate _PSD
  DynamicTablesPkg: Generate _PSD in SsdtCpuTopologyGenerator
  DynamicTablesPkg: Add DynamicTablesScmiInfoLib
  DynamicTablesPkg: Add PcdDevelopmentPlatformRelaxations Pcd
  DynamicTablesPkg: Exempt some _CPC field from checks

 .../ArmScmiDxe/ScmiPerformanceProtocol.c      |  80 ++++-
 .../Protocol/ArmScmiPerformanceProtocol.h     | 101 +++++-
 DynamicTablesPkg/DynamicTables.dsc.inc        |   3 +
 DynamicTablesPkg/DynamicTablesPkg.dec         |   8 +
 DynamicTablesPkg/DynamicTablesPkg.dsc         |   3 +
 .../Include/{AmlCpcInfo.h => AcpiObjects.h}   |  20 ++
 .../Include/ArmNameSpaceObjects.h             |  17 +-
 .../Include/Library/AmlLib/AmlLib.h           |  37 ++-
 .../Library/DynamicTablesScmiInfoLib.h        |  33 ++
 .../SsdtCpuTopologyGenerator.c                |  96 ++++++
 .../Library/Common/AmlLib/AmlLib.inf          |   3 +
 .../Common/AmlLib/CodeGen/AmlCodeGen.c        | 228 +++++++++++++-
 .../ConfigurationManagerObjectParser.c        |  14 +-
 .../DynamicTablesScmiInfoLib.c                | 297 ++++++++++++++++++
 .../DynamicTablesScmiInfoLib.inf              |  31 ++
 15 files changed, 941 insertions(+), 30 deletions(-)
 rename DynamicTablesPkg/Include/{AmlCpcInfo.h => AcpiObjects.h} (88%)
 create mode 100644 DynamicTablesPkg/Include/Library/DynamicTablesScmiInfoLib.h
 create mode 100644 DynamicTablesPkg/Library/DynamicTablesScmiInfoLib/DynamicTablesScmiInfoLib.c
 create mode 100644 DynamicTablesPkg/Library/DynamicTablesScmiInfoLib/DynamicTablesScmiInfoLib.inf

-- 
2.25.1



-=-=-=-=-=-=-=-=-=-=-=-
Groups.io Links: You receive all messages sent to this group.
View/Reply Online (#114410): https://edk2.groups.io/g/devel/message/114410
Mute This Topic: https://groups.io/mt/103955491/7686176
Group Owner: devel+owner@edk2.groups.io
Unsubscribe: https://edk2.groups.io/g/devel/unsub [rebecca@openfw.io]
-=-=-=-=-=-=-=-=-=-=-=-