Re: Marvell/evbppc - netbsd-current

[Matt Thomas <matt%3am-software.com@localhost>]

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:
> > PHYS_TO_BUS_MEM
> > and
> > BUS_MEM_TO_PHYS
> [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
above.


--
Matt Thomas                     email: matt%3am-software.com@localhost
3am Software Foundry              www: http://3am-software.com/bio/matt/
Cupertino, CA              disclaimer: I avow all knowledge of this message.