Subject: Re: bus_dmamem accessors.
To: None <>
From: Izumi Tsutsui <>
List: tech-kern
Date: 06/27/2000 02:09:08
In <Pine.NEB.4.21.0006251822410.17049-100000@ehorvath> wrote:

> OTOH, machines that cannot set up inverse-endian mappings will need to
> handle byte-swapping as needed in the bus_dmamem*() accessors the same way
> it's currently done with bus_space*() accessors.

Just FYI, smc83c170 (epic at pci) has real working "big endian mode."
It can handle byte-swapping of dmamem by its own hardware and
no extra software/hardware supports are needed.
It works fine on macppc without any byte-swapping functions.
Izumi Tsutsui