Date: Tue, 10 Sep 1996 15:11:23 -0700 (PDT) From: "Rodney W. Grimes" <rgrimes@GndRsh.aac.dev.com> To: peter@spinner.dialix.com (Peter Wemm) Cc: smp@csn.net, smp@freebsd.org, davidg@freebsd.org Subject: Re: 82489 data books Message-ID: <199609102211.PAA20594@GndRsh.aac.dev.com> In-Reply-To: <199609101931.DAA00413@spinner.DIALix.COM> from Peter Wemm at "Sep 11, 96 03:31:55 am"
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> Steve Passe wrote: > > Hi, > > > > > page is stolen). I've been trying to decipher some of the more obscure > > > parts of the apic docs, and it appears that we can sort-of simulate a > > > > So far I've been working with just the APIC info in the MP spec and the > > pentium manual. I just spent a half-hour playing phone tag with Intel > > trying to get some 82489 specific data books. They can't seem to > > find the proper documents. Could you tell me the document names & numbers > > of the books you have/know of? > > > > thanx in advance... > > Ha! If you find out, **please** let me know! There seems to be no > documentation for the IO APIC available anywhere, apart from the fact that > it's got address space reserved for it. As far as intel is concerned, it > appears as though the 82489DX practically never existed, and the vague > reference "See your chipset documentation" for the IO APIC specs isn't > much help either. Does that mean we need to get hold of a Neptune or the > 430HX-formerly-known-as-Triton-II chipset manuals?? The Neptune databook _might_ have it, Triton-II defanitly does not. > Or is this one of those areas that the BIOS is meant to program and the OS > is to keep it's grubby hands off? No, the OS needs to reprogram the I/O APIC if it wishes to use fully symtrical interrupt delivery. > Somebody once mentioned to me some unrelated manual that had a secion on > the IO apic, but I've lost the mail and cannot remember who it was. It is in one of the volumes in the Pentium databook set, I just sent David Greenman home with an old set that I know has the 82489 datasheet in it. > It would be really, really nice if Intel could grab the apic section of > one of their "chipset manuals" and stick it on their web server in .pdf > format next to the pentium and pentium pro manuals. (non-encrypted pdf > please, it's a royal pain having to go to a windows machine and print the > damn thing from acrobat to a fake postscript printer to capture the .ps) > Anybody got any friends inside Intel? :-) Got friends inside, but they just have hard copies of the full databook sets. > BTW, the MPSPEC 1.1 doc says: 82489DX Advanced Programmable Interrupt > Controller (data book), Intel order number 290446. Let me know if you had > better luck than I did... You mean when you called 1-800-548-4725 they could not find that order number? Humm... item is discontiuned, that means that it has been folded into one of the 10 or so volumes of the full data book set and is only avaliable that way. If you got a current set of the Pentium databooks (3 or 4 volume set) you would find it in there. -- Rod Grimes rgrimes@gndrsh.aac.dev.com Accurate Automation Company Reliable computers for FreeBSD
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