Re: bitops atomicity question

Jes Degn Soerensen (jds@kom.auc.dk)
26 Aug 1997 18:24:27 +0200


>>>>> "Alan" == Alan Cox <alan@lxorguk.ukuu.org.uk> writes:

>> hmmm, what happened to the CAS/TAS (and firends) on the m68k ? get
>> dropped from the '30 or is SMP yet to be ported o m68k anyway ?

Alan> Many M68K systems don't support the RMW bus cycle used by TAS

Naaah, in fact its only the Amiga access to chipram (the stuff used
for video/audio etc., which is not a problem for Linux since we don't
use RMW on chipram) and some bad 040 boards (including my old bollocks
PP&S board).

For all other systems it should work fine.

Jes