Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261741AbTE1Xci (ORCPT ); Wed, 28 May 2003 19:32:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261743AbTE1Xci (ORCPT ); Wed, 28 May 2003 19:32:38 -0400 Received: from parcelfarce.linux.theplanet.co.uk ([195.92.249.252]:61328 "EHLO www.linux.org.uk") by vger.kernel.org with ESMTP id S261741AbTE1Xcf (ORCPT ); Wed, 28 May 2003 19:32:35 -0400 Message-ID: <3ED54A24.5010102@pobox.com> Date: Wed, 28 May 2003 19:45:40 -0400 From: Jeff Garzik Organization: none User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.2.1) Gecko/20021213 Debian/1.2.1-2.bunk X-Accept-Language: en MIME-Version: 1.0 To: Zwane Mwaikambo CC: "Nguyen, Tom L" , "Nakajima, Jun" , linux-kernel@vger.kernel.org, "Saxena, Sunil" , "Mallick, Asit K" , "Carbonari, Steven" Subject: Re: RFC Proposal to enable MSI support in Linux kernel References: <3ED53FE3.8090503@pobox.com> In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 803 Lines: 24 Zwane Mwaikambo wrote: > On Wed, 28 May 2003, Jeff Garzik wrote: >>A bigger question though: if platform_legacy_irq() returns zero, will >>the handler _ever_ be edge-triggered? > > > Good question, i wouldn't think so, that would collapse that section into > two lines. Have you ever seen an edge-triggered interrupt on x86 that would fail the current platform_legacy_irq test? For what cases does that happen? The legacy interrupts on the boxes I poked at are edge triggered, but I do not know enough to say if that is a general rule. Jeff - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/