Re: which bus_dmamap_sync() ?

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

bouyer%antioche.eu.org@localhost wrote:

> can anyone tell me what bus_dmamap_sync() function port-macppc is using for
> its PCI bus ? I've been looking at arch/macppc/ and arch/powerpc/ and
> my conclusion is that bus_dmamap_sync() is a nop on port-macppc
> (_dmamap_sync being NULL). Is this right ?

I think macppc is DMA coherent and it doesn't require bounce buffer xfer.
(at least I haven't seen trouble caused by lack of bus_dmamap_sync(9))
---
Izumi Tsutsui