On Wed, Aug 08, 2001, Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
> > I have a 64 bit PCI card which will work in either a 32 bit or 64 bit
> > PCI slot.
> >
> > I'd like to make the driver autodetect which kind of slot the card is
> > in and set the dma_mask correctly, but I can't seem to figure out how to
> > do this.
>
> Are you sure the card actually needs this. Most such cards support dual address
> cycle, so when placed in a 32bit slot will still do 64bit DMA
No I don't know if it's needed. I had no idea that PCI could do that.
Is dual address cycle mandated by the PCI specs?
JE
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This archive was generated by hypermail 2b29 : Wed Aug 15 2001 - 21:00:20 EST