Subject: Re: Marvell/evbppc - netbsd-current
To: Steve Woodford <>
From: Matt Thomas <>
List: port-powerpc
Date: 03/19/2004 18:14:34
At 03:04 PM 3/19/2004, Steve Woodford wrote:
>On Friday 19 March 2004 9:49 pm, Fraser Douglas wrote:
> > It needs (for the ev64260 port) to define macros
> > for:
> > and
>[in <evbppc/bus.h>]
> > which I am afraid will most likely break other
> > evbppc based ports if they are using that bus.h.
> >
> > Can anyone suggest a place to invoke those macros
> > other than in that particular header?
> >
> > Possibly as an option in the config? (though that seems 'brutish')
>I can't think of any other way to specify this. I've rattled up an
>evbppc-specific defflag "EVBPPC_BUS_DMA_NEEDS_P2B" which DTRT if
>specified in the kernel config file. If there are no objections, I'll
>commit this.
>As I recall, you just need the following definitions for the macros:
>#define PHYS_TO_BUS_MEM(t, addr)        (addr)
>#define BUS_MEM_TO_PHYS(t, addr)        (addr)

Don't even need that anymore.  I added gt_dma_phys_to_bus_mem and
gt_dma_bus_mem_to_phys to the gt dma tag.  Which effectively do the

Matt Thomas                     email:
3am Software Foundry              www:
Cupertino, CA              disclaimer: I avow all knowledge of this message.