Re: m68k cacheops header -- some questions

Hauke Fath <[email protected]> Fri, 14 Nov 2025 13:54:03 +0100
Newsgroups gmane.os.netbsd.ports.m68k
Organization Lacking
Message-ID <[email protected]>
On Fri, 14 Nov 2025 21:28:03 +0900, Izumi Tsutsui wrote:
> As you said, L1 D-cache on 030 should also be invalidated/flushed
> on PREREAD. But I guess in most case all cached data in small
> 256 byte D-cache are not preserved during complex DMA setup ops.
>=20
> Furthermore, I wonder how many 030 models were there that had
> "generic devices with modern drivers using MI bus_dma(9)".
> (I see mac68k has NuBus Sonic Ethernet, but..)

There is the Symbios 53c720 based 'Jackhammer' Nubus card, and a Qlogic=20
based one (sporting a Nubus-to-SBus bridge, no less). I have a=20
half-finished driver for the former, but haven't touched it in ages.

ISTR the amiga port has support for Symbios based cards.

Cheerio,
Hauke

--=20
Hauke Fath                        <[email protected]>
Linn=E9weg 7
64342 Seeheim-Jugenheim
Germany