>>>>> On Wed, 14 Jul 2004 17:35:19 +0100, Dominic Sweetman <firstname.lastname@example.org> said:
dom> 2. Arrange to skip those indexes when zapping the cache, then do
dom> something weird to invalidate that handful of lines. You could
dom> do that by running uncached, but you could also do it just by
dom> using some auxiliary routine which is known to be more than a
dom> cache line but much less than a whole I-cache span distant, so
dom> can't possibly alias to the same thing...
dom> This is fiddly, but not terribly difficult and should have a
dom> negligible performance impact.
Yes. The cache routines for TX49XX surely do it (2 phase
invalidating). Please look at tx49_blast_icache32() in c-r4k.c.