From owner-freebsd-mips@freebsd.org Mon Apr 23 14:49:10 2018 Return-Path: Delivered-To: freebsd-mips@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id D58DFFA0F51 for ; Mon, 23 Apr 2018 14:49:09 +0000 (UTC) (envelope-from wlosh@bsdimp.com) Received: from mail-it0-x244.google.com (mail-it0-x244.google.com [IPv6:2607:f8b0:4001:c0b::244]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 69E626DC4A for ; Mon, 23 Apr 2018 14:49:09 +0000 (UTC) (envelope-from wlosh@bsdimp.com) Received: by mail-it0-x244.google.com with SMTP id p3-v6so10798466itc.0 for ; Mon, 23 Apr 2018 07:49:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bsdimp-com.20150623.gappssmtp.com; s=20150623; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:cc; bh=roMSiCxDWKgNsIvLG22QA/W0JnTv/USrwh7CoQyBSbM=; b=1zxRsCDiz1DECLe91MFKQGWGAB2WdDFA0PD0dxo2WrRHgTQUVi1X90/oFmXMzgFUoO BHv6i3bTuWdcknJtebiMG7fFZJ+LJbLMumyyoTIcxJWKkRYvRgbN87Xa65dmSUFLa0oX UB7vHdepobeLDy7OUv7LdVUkhPRJsvMF3QXL2HB8T6iK75Qu+BGr1bheQXN6oDntfeeL vfmn1KMkKPPLc3PACIu0o0kAFqplOWcTIsxgykAY8ZYxv0JwweEuli2vYE8gXHrJ/rLO I7dZg3+gPlOcBwZTn/Jirf38gVMT7VFo9lnO3cSg1ZyAOzCMVvPw3i1d0YAL3MbAxIVN sAyw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:sender:in-reply-to:references:from :date:message-id:subject:to:cc; bh=roMSiCxDWKgNsIvLG22QA/W0JnTv/USrwh7CoQyBSbM=; b=ccl5MkJI6HnuevXXy63H2tC0AX1zW4CIrkFkrqqcLm/N/1Z3PDhEaR4XNh3Dc2OyCk +XclVZnvQEBsvbrJqjd9glvrc+3gtn+OGfznRM+Qt4EjEw0OGMHrJ8euNm+bNeYlUwIU SDMGU31cW8wSDWDi//oZnHX1X8GM6+uW2IUX9V2sI14UFaqY6eTMHJpKt3Zq5Mg1AsCC fu9EoVkct1pymlPGNQLdXqigZU+bTjEIvalLxFN4khVAJS2gjQM7q1QyJwPaes2IPdLS yAP6Hocyw2X/uesjC/wi0iVE0ErqLhQLFU+Tfh0w/6wIMnqdSjNwz8mcAUPJol5Vz+wq QCug== X-Gm-Message-State: ALQs6tBKrFdxGelfDtXbSgiTSRNq17Nmu3wVohMbn77uZO0/6XEMUH88 QAHXw6ryW48KtKgmozcmoUfDKKWfpuzjXAL8HupUhg== X-Google-Smtp-Source: AIpwx4/AI8VNw2H3t34F9ljTbHXqlS0+60g/F0w6L2mULrB0szM1gbLYA52MzMhpjolnMU15/jGMheEedisiTX/Pz1Q= X-Received: by 2002:a24:e983:: with SMTP id f125-v6mr14245726ith.36.1524494948626; Mon, 23 Apr 2018 07:49:08 -0700 (PDT) MIME-Version: 1.0 Sender: wlosh@bsdimp.com Received: by 2002:a4f:a604:0:0:0:0:0 with HTTP; Mon, 23 Apr 2018 07:49:08 -0700 (PDT) X-Originating-IP: [50.227.106.226] In-Reply-To: <0116B26A-AEE1-4D62-A557-D07ACB3EF2D6@gmail.com> References: <6424234f-275b-fb66-6703-19879a32ebd1@gmail.com> <0116B26A-AEE1-4D62-A557-D07ACB3EF2D6@gmail.com> From: Warner Losh Date: Mon, 23 Apr 2018 08:49:08 -0600 X-Google-Sender-Auth: d1H-xpS_C88mv1vzp063VUAQUj0 Message-ID: Subject: Re: Has anyone tried the MIPS port on old SGI tower case systems like Octeon? To: Jukka Ukkonen Cc: "freebsd-mips@freebsd.org" Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.25 X-BeenThere: freebsd-mips@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: Porting FreeBSD to MIPS List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 23 Apr 2018 14:49:10 -0000 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 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 wrote: > > > > On Mon, Apr 23, 2018, 1:32 AM Jukka A. Ukkonen 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" >> >