Subject: Re: bus_dmamem accessors.
To: None <email@example.com>
From: Izumi Tsutsui <firstname.lastname@example.org>
Date: 06/27/2000 02:09:08
> 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.