From mboxrd@z Thu Jan 1 00:00:00 1970 Received: (from majordomo@localhost) by oss.sgi.com (8.11.3/8.11.3) id f3NLn0F14041 for linux-mips-outgoing; Mon, 23 Apr 2001 14:49:00 -0700 Received: from dea.waldorf-gmbh.de (IDENT:root@localhost [127.0.0.1]) by oss.sgi.com (8.11.3/8.11.3) with ESMTP id f3NLmsM14034 for ; Mon, 23 Apr 2001 14:48:55 -0700 Received: (from ralf@localhost) by dea.waldorf-gmbh.de (8.11.1/8.11.1) id f3NLmZE06408; Mon, 23 Apr 2001 18:48:35 -0300 Date: Mon, 23 Apr 2001 18:48:35 -0300 From: Ralf Baechle To: Scott A McConnell Cc: linux-mips@oss.sgi.com Subject: Re: IRQ questions Message-ID: <20010423184835.B6109@bacchus.dhis.org> References: <3AE081E3.434E9126@cotw.com> <20010420190017.B7282@bacchus.dhis.org> <3AE4B902.C81AB2B9@cotw.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <3AE4B902.C81AB2B9@cotw.com>; from samcconn@cotw.com on Mon, Apr 23, 2001 at 04:21:38PM -0700 X-Accept-Language: de,en,fr Sender: owner-linux-mips@oss.sgi.com Precedence: bulk On Mon, Apr 23, 2001 at 04:21:38PM -0700, Scott A McConnell wrote: > > > I have a 2.4.3 kernel booting. I copied the old arch/mips/kernel/irq.c > > > to my target directory and changed > > > > One valid solution ... Still. We want to eleminate all this code > > duplication for no good reason. > > Would Rotten_IRQ have done the same thing? Absolutely not. The rotten IRQ thing gives you the old irq.c which assumes more or less x86 centric interrupt handling, that is a 2 PICs and doesn't get SMP right and leaves us a ton of structural problems. Don't use, it's destilled evil ;-) > Could you name an arch in the cvs distribution that uses the new style IRQ's Interrupt handling is an per architecture thing; currently i386 is coming closest to the new design of our future interrupts. Ralf