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Add handling of DMA boundary barrier in _bus_dmamap_load_buffer(). This affects all bus_dmamap_load* functions of bus_dma(9). While I'm there fix a bug where the dm_segs array could be overflowded by one.
Add handling of DMA boundary barrier in _bus_dmamap_load_buffer(). This affects all bus_dmamap_load* functions of bus_dma(9). While I'm there fix a bug where the dm_segs array could be overflowded by one.