| To: | "Maciej W. Rozycki" <macro@ds2.pg.gda.pl> |
|---|---|
| Subject: | Re: MIPS_ATOMIC_SET again (Re: newest kernel |
| From: | Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> |
| Date: | Tue, 29 May 2001 08:57:33 +0200 (MET DST) |
| Cc: | "Kevin D. Kissell" <kevink@mips.com>, linux-mips@oss.sgi.com |
| In-reply-to: | <Pine.GSO.3.96.1010528190412.15200Q-100000@delta.ds2.pg.gda.pl> |
| Sender: | owner-linux-mips@oss.sgi.com |
On Mon, 28 May 2001, Maciej W. Rozycki wrote:
> On Mon, 28 May 2001, Kevin D. Kissell wrote:
> > > Are vr41xx plain ISA I or crippled ISA II+ CPUs?
> >
> > Actually, they are crippled MIPS III+ 64-bit CPUs
>
> Then an ll/sc and lld/scd emulation seems to be most appropriate here. I
> don't think we want to add _test_and_set() to mips64*-linux.
Do you want to run a 64-bit kernel on a Vr41xx? Most of these are used in
embedded systems, where the amount of RAM is a few orders of magnitude smaller
than the 32-bit RAM limit.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven ------------- Sony Software Development Center Europe (SDCE)
Geert.Uytterhoeven@sonycom.com ------------------- Sint-Stevens-Woluwestraat 55
Voice +32-2-7248626 Fax +32-2-7262686 ---------------- B-1130 Brussels, Belgium
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