From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Wed, 06 Dec 2006 15:49:02 +0000 (GMT) Received: from h155.mvista.com ([63.81.120.155]:25698 "EHLO imap.sh.mvista.com") by ftp.linux-mips.org with ESMTP id S20038310AbWLFPrW (ORCPT ); Wed, 6 Dec 2006 15:47:22 +0000 Received: from [192.168.1.248] (unknown [10.150.0.9]) by imap.sh.mvista.com (Postfix) with ESMTP id 8F8A83EC9; Wed, 6 Dec 2006 07:47:18 -0800 (PST) Message-ID: <4576E666.1010502@ru.mvista.com> Date: Wed, 06 Dec 2006 18:48:54 +0300 From: Sergei Shtylyov Organization: MontaVista Software Inc. User-Agent: Mozilla/5.0 (X11; U; Linux i686; rv:1.7.2) Gecko/20040803 X-Accept-Language: ru, en-us, en-gb MIME-Version: 1.0 To: "Maciej W. Rozycki" Cc: Ingo Molnar , anemo@mba.sphere.ne.jp, Ralf Baechle , linux-mips@linux-mips.org Subject: Re: [PATCH] Import updates from i386's i8259.c References: <20061206.103923.71086192.nemoto@toshiba-tops.co.jp> <20061206015818.GB27985@linux-mips.org> <20061206.115602.63741871.nemoto@toshiba-tops.co.jp> <20061206.133836.89067271.nemoto@toshiba-tops.co.jp> <4576C2E9.4060900@ru.mvista.com> <4576CB64.2060705@ru.mvista.com> <4576DDEC.1050105@ru.mvista.com> In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 13378 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: sshtylyov@ru.mvista.com Precedence: bulk X-list: linux-mips Hello. Maciej W. Rozycki wrote: >> As for the I/O APIC, I think i82903AA was "the reference design" for it... > Nope, it was the i82489DX -- the original "discrete" coupled Local & I/O > APIC using a five-wire inter-APIC bus and a protocol different from later > implementations. Hm, that's news to me. I always thought that chip was external *local* APIC only... Well, there's no docs on it anyway. > Then there were ones included in the i82379AB (SIO.A) > and i82374EB/SB (ESC) chipset components. They used a three-wire bus and > a new protocol. And only then came the i82093AA. Aha, you're probably correct here. I forgot about those early chipssets. > Maciej WBR, Sergei