expose unspill config option #2566
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Signed-off-by: Rong Ou <rong.ou@gmail.com>
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Signed-off-by: Rong Ou <rong.ou@gmail.com>
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Signed-off-by: Rong Ou <rong.ou@gmail.com>
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Unspill turns out to be useful when we try to align GDS IO, since whole buffers can be read back aligned to 4 KiB, bypassing GDS's internal bounce buffer.
Signed-off-by: Rong Ou rong.ou@gmail.com