RTEMS | SMP: Add support for the MPCP locking protocol (!1358)

Ivy Zhuang (@purple-affogato) gitlab at rtems.org
Sat Jul 18 18:42:12 UTC 2026



Ivy Zhuang created a merge request: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1358

Project:Branches: purple-affogato/rtems-fork:add_mpcp to rtems/rtos/rtems:main
Author:   Ivy Zhuang



## Summary

Add support for the Multiprocessor Priority Ceiling Protocol (MPCP) to RTEMS for use in SMP configurations. The original implementation of MPCP to RTEMS comes from [Supporting Multiprocessor Resource Synchronization Protocols in RTEMS](https://arxiv.org/pdf/2104.06366) by Junjie Shi, Jan Duy Thien Pham, Malte Muench, Jan Viktor Hafemeister, Jian-Jia Chen, and Kuan-Hsun Chen.

The first commit of this MR contains the changes for MPCP from the research found in this [GitHub repository](https://github.com/JJShi92/RTEMS-Resource-Synchronization-Protocols).

Beyond that, this MR adds support for MPCP to the semaphore manager, smpmpcp01 in smptests to test the MPCP implementation, and updates to the MPCP implementation.

Updates #4612 

## Generative AI

None

-- 
View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1358
You're receiving this email because of your account on gitlab.rtems.org. Unsubscribe from this thread: https://gitlab.rtems.org/-/sent_notifications/4-5rwqcl25vw5b1awgb4o8jprje-1d/unsubscribe | Manage all notifications: https://gitlab.rtems.org/-/profile/notifications | Help: https://gitlab.rtems.org/help


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.rtems.org/pipermail/bugs/attachments/20260718/56c817da/attachment.htm>


More information about the bugs mailing list