In article <45BEF1D68145D51186C100B0D0AABE65104936@med.corp.rhapsodynetworks.com>
ARai@rhapsodynetworks.com wrote:

> While browsing code, I realized that for  i386/pci case bus_dmamap_sync
> function is a no-op. Is that so...? If so, why..? Is that ok for memory
> which has not been dmamem_alloce'd with DMA_COHERENT flag... (e.g. user
> space) ?

On i386 architecture, all DMA-cache coherency is handled by hardware
for backward compatibility.
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Izumi Tsutsui
tsutsui@ceres.dti.ne.jp