linaro-mm-sig

debugfs support for dma-buf buffers

Registered by Sumit Semwal

AS the number of users of dma-buf framework increases, there is a need to enable runtime debugging, refcounts and other information about the buffers in use.

debugfs support will provide one snapshot from the framework point of view.

Blueprint information

Status:
Complete
Approver:
Tom Gall
Priority:
High
Drafter:
Sumit Semwal
Direction:
Approved
Assignee:
Sumit Semwal
Definition:
Approved
Series goal:
None
Implementation:
Implemented
Milestone target:
milestone icon wip
Started by
Sumit Semwal
Completed by
Sumit Semwal

Related branches

Sprints

Whiteboard

[sumits: 04/04/2013]: review comments received on v2; updated and v3 posted for review. Should be the last one.
[sumits: 25/03/2013]: v2 posted out for review.

Meta:

Headline: Add debugfs support for dma-buf framework. This will enable runtime snapshots of dma-buf usage etc.

Acceptance: test dma-buf debugfs on one of the existing available platforms (arndale / pandaboard)

(?)

Work Items

Work items:
add debugfs basic support for dma-buf (show per buffer information, with current attachment information): DONE
send patch for review: DONE
rework on review comments: DONE
review comments incorporate: Add dma-buf_export_named(), to allow exporters to give a name string useful for debugging: DONE
test with current platform: DONE
Wait for review comments, before adding to for-next queue: INPROGRESS

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