Re: [linuxsh-dev] Cache bug on SH-3/4

[Paul M. <pau...@ti...>]

On Fri, 2003-02-14 at 10:17, David McCullough wrote:
> I wouldn't say the 7751/7750 and the 7751R are that different code wise
> to manage it,  just the extra ways to deal with.  Of course underneath
> they may be plenty different ;-)
>=20
Extra ways makes a considerable difference in and of itself. Naturally
there's also OC RAM differences, which is a bit more annoying.

I've been playing with getting most of that dealt with relatively
transparently in the restructure branch, but haven't finished off the
way bit selection in the flush yet (also no 7751R/7750R to test on).=20

Good thing probing works so we don't have to hardcode anything..

> The cache-sh4.c I used in the test is a mega hack version I used to get
> multiple ways going (with experimentation code still in there).  I can
> send you a copy if you want.  It currently has the 7751R support
> hardcoded on,  but the current version has it disabled,  not that it
> seems to matter in practice if you use the 7751R code on the 7751.
>=20
Sure, pass it along, could be interesting.

--=20
Paul Mundt <pau...@ti...>
TimeSys Corporation