dma-buf needs cache domain object

Registered by Jesse Barker on 2012-02-21

The dma-buf API needs a cache domain object to describe whether devices sharing a mapping are part of the same cache domain. ioctl interface should have a dirty region hint (optional hint whereby the default behavior is the whole mapping); region hint would be something like struct hwmem_region (http://www.igloocommunity.org/gitweb/?p=kernel/igloo-kernel.git;a=blob;f=include/linux/hwmem.h;h=ba4c116f4b9288737922d8fa94e4e10554a9d54f;hb=HEAD).

Blueprint information

Status:
Not started
Approver:
Jesse Barker
Priority:
Medium
Drafter:
None
Direction:
Needs approval
Assignee:
None
Definition:
New
Series goal:
Accepted for trunk
Implementation:
Unknown
Milestone target:
milestone icon backlog

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Status:
[jesse-barker 2012-02-22] This work would be dependent upon an as-yet-to-be-done piece of work in the dma-mapping API.

(?)

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