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由 Rob Clark 提交于
Let dma_fence::signaled, etc, read directly from the address that the hw is writing with updated completed fence seqno, so we can potentially notice that the fence is signaled sooner. Plus add some docs. Signed-off-by: NRob Clark <robdclark@chromium.org> Link: https://lore.kernel.org/r/20210726144359.2179302-2-robdclark@gmail.comSigned-off-by: NRob Clark <robdclark@chromium.org>
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