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gerrit.openbmc.org / openbmc / openpower-occ-control / 30040d9dc1d7bbd0a69f221f49edc24cf748dae6
commit30040d9dc1d7bbd0a69f221f49edc24cf748dae6[log] [tgz]
authorChris Cain <cjcain@us.ibm.com>Wed Jun 19 16:50:34 2024 -0500
committerChris Cain <cjcain@us.ibm.com>Tue Jul 16 20:42:43 2024 +0000
tree047e0c51d18ca9ff274f66f9dfad40058bea806b
parentdb38e91a2afac435c2a1e1b17ae3379eae9f737f [diff]
Read mode support from entity manager and update dbus

1. Attempt to read several power mode properties from entity-manager.
Reject any mode change requests that are not in the CustomerModes list.
If the CustomerModes list is empty, all supported mode changes will be
allowed.

CustomerModes: List of power modes that are settable from a customer
user interface.
OemModes: List of OEM power modes that are supported on the system.
EcoModeSupport: Flag to indicate if the system supports a set of
efficiency based settings.

If any of these are not found, occ-control will use the default
supported modes.

Use default if persisted power mode is not supported

2. If previous (persisted) power mode is not supported, the default
power mode for the system will be used. If that default is not found
MaximumPerformance will be used.

Tested on Rainier

'''
xyz.openbmc_project.Control.Power.Mode interface -         -                                                                                                                                                                                                -
.AllowedPowerModes                     property  as        3 "xyz.openbmc_project.Control.Power.Mode.PowerMode.MaximumPerformance" "xyz.openbmc_project.Control.Power.Mode.PowerMode.PowerSaving" "xyz.openbmc_project.Control.Power.Mode.PowerMode.Static" const
.PowerMode                             property  s         "xyz.openbmc_project.Control.Power.Mode.PowerMode.PowerSaving"                                                                                                                                   emits-change writable
.SafeMode                              property  b         false                                                                                                                                                                                            emits-change
'''

Change-Id: Id9b2b493e420fc60b3c29d581d63e9ed0f71c4fc
Signed-off-by: Chris Cain <cjcain@us.ibm.com>
4 files changed
tree: 047e0c51d18ca9ff274f66f9dfad40058bea806b
  1. example/
  2. service_files/
  3. subprojects/
  4. test/
  5. .clang-format
  6. .gitignore
  7. app.cpp
  8. file.hpp
  9. i2c_occ.cpp
  10. i2c_occ.hpp
  11. LICENSE
  12. meson.build
  13. meson.options
  14. occ-active.sh
  15. occ_command.cpp
  16. occ_command.hpp
  17. occ_dbus.cpp
  18. occ_dbus.hpp
  19. occ_device.cpp
  20. occ_device.hpp
  21. occ_errors.cpp
  22. occ_errors.hpp
  23. occ_events.hpp
  24. occ_ffdc.cpp
  25. occ_ffdc.hpp
  26. occ_manager.cpp
  27. occ_manager.hpp
  28. occ_pass_through.cpp
  29. occ_pass_through.hpp
  30. occ_presence.cpp
  31. occ_presence.hpp
  32. occ_sensor.mako.hpp
  33. occ_status.cpp
  34. occ_status.hpp
  35. OWNERS
  36. pldm.cpp
  37. pldm.hpp
  38. powercap.cpp
  39. powercap.hpp
  40. powermode.cpp
  41. powermode.hpp
  42. README.md
  43. sensor_gen.py
  44. utils.cpp
  45. utils.hpp
README.md

OpenPOWER OCC Control Service

This service will handle communications to the On-Chip Controller (OCC) on Power processors. The OCC provides processor and memory temperatures, power readings, power cap support, system power mode support, and idle power saver support. OCC Control will be interfacing with the OCC to collect the temperatures and power readings, updating the system power mode, setting power caps, and idle power save parameters.

The service is started automatically when the BMC is started.

Build Project

This project can be built with meson. The typical meson workflow is: meson builddir && ninja -C builddir.

Server

The server will start automatically after BMC is powered on.

Server status: systemctl status org.open_power.OCC.Control.service

To restart the service: systemctl restart org.open_power.OCC.Control.service

Configuration

Service files are located in service_files subdirectory.

References

Power10

IBM EnergyScale for Power10 Processor-Based Systems whitepaper: https://www.ibm.com/downloads/cas/E7RL9N4E

OCC Firmware Interface Spec for Power10: https://github.com/open-power/docs/blob/P10/occ/OCC_P10_FW_Interfaces_v1_17.pdf

OCC Firmware: https://github.com/open-power/occ/tree/master-p10

Power9

IBM EnergyScale for POWER9 Processor-Based Systems: https://www-01.ibm.com/common/ssi/cgi-bin/ssialias?htmlfid=49019149USEN&

OCC Firmware Interface Spec for POWER9: https://github.com/open-power/docs/blob/P9/occ/OCC_P9_FW_Interfaces.pdf