drm/vmwgfx: Make buffer object lookups reference-free during validation

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Make the process of looking up a buffer object 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.

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

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Thomas Hellstrom 2018-09-26 16:27:54 +02:00

parent b733bc2e0a

commit b139d43dac

1 changed files with 30 additions and 55 deletions

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drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c

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