Date: Mon, 23 Apr 2018 08:49:08 -0600 From: Warner Losh <imp@bsdimp.com> To: Jukka Ukkonen <jau789@gmail.com> Cc: "freebsd-mips@freebsd.org" <freebsd-mips@freebsd.org> Subject: Re: Has anyone tried the MIPS port on old SGI tower case systems like Octeon? Message-ID: <CANCZdfqi8mJORsrKj2S09agbkb9EKJ%2BgxJRET88EcRDti-L53Q@mail.gmail.com> In-Reply-To: <0116B26A-AEE1-4D62-A557-D07ACB3EF2D6@gmail.com> References: <6424234f-275b-fb66-6703-19879a32ebd1@gmail.com> <CANCZdfoGbG-PNxU0pF=b_8o5u9hS2GM=P9eGY5mXksDHq-3drg@mail.gmail.com> <0116B26A-AEE1-4D62-A557-D07ACB3EF2D6@gmail.com>
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There's a lot of work to support these devices, and there's not a lot of reward for it. The R10000, R12000 and R14000 CPUs all have TLB issues which force specialized trap handlers that are somewhat tricky to get right. It's a lot of work to get working and keep working for systems that are as fast as a Pentium III, but harder to get parts for... There's no developers that has one in service, so while it would be nice if we ran on this cool, historically important MIPS flavor, the benefits haven't been there in the past, and are only less likely to be there in the future. Warner On Mon, Apr 23, 2018 at 6:18 AM, Jukka Ukkonen <jau789@gmail.com> wrote: > > Uublii...! - My brain has been mixing things again. > Octane is what I meant. My mistake, sorry! > It is kind of sad there is no support for the old SGI > iron, but then again NetBSD and OpenBSD seem to > support quite a number of old SGIs. > > --jau > > > On 23 Apr 2018, at 11.11, Warner Losh <imp@bsdimp.com> wrote: > > > > On Mon, Apr 23, 2018, 1:32 AM Jukka A. Ukkonen <jau789@gmail.com> wrote: > >> >> Hello all, >> >> Has anyone tried the MIPS port on old SGI tower case systems >> like Octeon or Octeon2? If so, are there any old SGI models >> which are known to work with FreeBSD/mips? >> > > > I think you mean Octane... none of the old SGI gear is supportedby the > FreeBSD/mips port. There are a lot of errata for those old chips we simply > do not have code for. > > Octeon is a newer chip that we do have support for. It was never used by > SGI. > > Warner > >> --jau >> _______________________________________________ >> freebsd-mips@freebsd.org mailing list >> https://lists.freebsd.org/mailman/listinfo/freebsd-mips >> To unsubscribe, send any mail to "freebsd-mips-unsubscribe@freebsd.org" >> >
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