Thomas Hellstrom e8c66efbfe drm/vmwgfx: Make user resource lookups reference-free during validation ...

Make the process of looking up a user resource and adding it to the
validation list reference-free unless when it's actually added to the
validation list where a single reference is taken.
This saves two locked atomic operations per command stream buffer object
handle lookup, unless there is a lookup cache hit.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>

2018-09-28 08:57:09 +02:00

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