Re: CVS commit: src/sys/dev/i2o

[Izumi Tsutsui <tsutsui%ceres.dti.ne.jp@localhost>]

> Modified Files:
>       src/sys/dev/i2o: iop.c
> 
> Log Message:
> Fix bus_dmamap_sync(): it should be a BUS_DMASYNC_POSTWRITE after
> writing to DMA memory.
> Found by code inspection.

>       *sw = htole32(0);
>       bus_dmamap_sync(sc->sc_dmat, sc->sc_scr_dmamap, 0, sizeof(*sw),
> -         BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD);
> +         BUS_DMASYNC_POSTWRITE);

This looks wrong. POSTWRITE should be used after
xfer from host to device is complete.

It looks bus_dmamap_sync() before *sw = htole32(0) statement
should be POSTWRITE (for the previous xfer) instead.

(POLL() macro with bus_dmamap_sync() seems also wrong..)
---
Izumi Tsutsui