dma-buf needs usage hint API

Registered by Jesse Barker on 2012-02-21

dma-buf needs additional usage hint API to allow virtualization of mapping resources.

- Layers on the cache domain stuff.
- May need callback to support this mechanism (beware deadlocking scenarios)
- Migration/virtualization is quite complex (read: hard). Optimizing cache management appears strongly at odds with this (not mutually exclusive, precisely, but definitely makes an already complex scenario much more so).

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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