Juice: Integrate Sync Driver into the Linaro Androidization Branch
What?
The sync driver in Android's tree needs to be pulled into Linaro Androidization branch so that it can be included in linux-linaro. Good documentaiton is located here: https:/
Existing test program system/
implement unit test.
Why?
The sync driver has a user interface. Because of this it may not operate correctly in a 64/32 bit platform. We need to integrate it into the kernel and into our builds and produce a unit-test for it, to ensure it works correctly on 64/32 bit and 32/32 bit platforms.
What gets produced?
1) 64/32 bit and a 32/32 bit build with the sync driver integrated.
2) Unit test to verify userspace interface of the driver.
Where will the work get put?
In the Androidization tree, in linux-linaro and in android-build.
Blueprint information
- Status:
- Complete
- Approver:
- Zach Pfeffer
- Priority:
- High
- Drafter:
- Dmitry Antipov
- Direction:
- Approved
- Assignee:
- Amit Khare
- Definition:
- Approved
- Series goal:
- Accepted for juice
- Implementation:
-
Implemented
- Milestone target:
-
m2
- Started by
- Zach Pfeffer
- Completed by
- Jakub Pavelek
Related branches
Related bugs
Sprints
Whiteboard
Meta:
Duration: 2w
Headline: The sync driver has been included in linux-linaro and in the required Android builds and tests have been written for it.
Roadmap id: CARD-199
Acceptance: The following items must be satisfied:
1. The sync driver must be include in the Androidization branch maintained by John Stultz
2. The sync driver must be included in linux-linaro
3. The sync driver must be included in the ARM LTs kernel
4. The sync driver must ship in a build
5. The sync driver must have a unit test that runs with the build
[2012/12/4 pfefferz] Please put notes here.
[2012/12/18 pfefferz] Bumping to 13.01 due to over planning.
[2012/12/18 jstultz] So at a high-level the sync driver should already be in the Linaro-android 12.12 branch. Although an assessment is needed to understand exactly the functionality that the driver provides to both userland and kernel space. I'm not sure if there are platform specific driver integration that is needed to utilize the sync framework or not.
[2013/01/28 antipov] Driver is platform-
file and a well-defined set of ioctl()s).
[2013/01/31 antipov] Initial test version is uploaded to:
https:/
[2013/02/19 antipov] As of https:/
requires /dev/sw_sync special file.
[2013/02/26 antipov] CONFIG_SW_SYNC_USER should be enabled too; reopen https:/
[2013/04/16] all the sync patches appear to be in place in linux-linaro
Work Items
Work items for 13.01:
Contact John Stultz about the Androidization branch: DONE
Contact John Stultz and Jesse Barker about the sync driver: DONE
Assess the sync driver for userland and kernelspace interfaces, better understand the functionality it provides: DONE
Work items for 13.02:
Write a unit test for the sync driver: DONE
[fagerstedt-axel] Integrate unit test into private git repo: DONE
Work items for 13.03:
Include the unit test in the build: DONE
Make sure the unit test runs: DONE
Work items for 13.04:
[fagerstedt-axel] As the new kernel maintainer, review the work items if they still make sense: DONE
[fagerstedt-axel] Help ensure that the sync driver makes it into the ARM LTs kernel: DONE
[fagerstedt-axel] Ensure juice-aosp with the affected ARM LT tree boots, debug issues that arise: DONE
[amit-khare] Include the unit-test write up in the test plan available from Zach Pfeffer and include test overview and how to run it: DONE
[amit-khare] Monitor test results and work on bugs: DONE
Dependency tree
* Blueprints in grey have been implemented.
