From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933208AbWKSUnP (ORCPT ); Sun, 19 Nov 2006 15:43:15 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933230AbWKSUnO (ORCPT ); Sun, 19 Nov 2006 15:43:14 -0500 Received: from h155.mvista.com ([63.81.120.155]:6318 "EHLO imap.sh.mvista.com") by vger.kernel.org with ESMTP id S933208AbWKSUnN (ORCPT ); Sun, 19 Nov 2006 15:43:13 -0500 Message-ID: <4560C23D.6080304@ru.mvista.com> Date: Sun, 19 Nov 2006 23:44:45 +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: Benjamin Herrenschmidt Cc: linuxppc-dev@ozlabs.org, Ingo Molnar , linux-kernel@vger.kernel.org, dwalker@mvista.com Subject: Re: [PATCH] 2.6.18-rt7: PowerPC: fix breakage in threaded fasteoi type IRQ handlers References: <200611192243.34850.sshtylyov@ru.mvista.com> <1163966437.5826.99.camel@localhost.localdomain> <20061119200650.GA22949@elte.hu> <1163967590.5826.104.camel@localhost.localdomain> <4560BDF5.400@ru.mvista.com> <1163968376.5826.110.camel@localhost.localdomain> <4560C121.30403@ru.mvista.com> In-Reply-To: <4560C121.30403@ru.mvista.com> 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 Hello. Sergei Shtylyov wrote: >>On MPIC or XICS, this is implicit by reading the vector. On some more >>dumb controllers, this has to be done explicitely. > This is not implicit -- CPU has to read INTACK reg. on OpenPIC. Really Sorry, it's the same for x86 version of OpenPIC according to spec. I meant the PPC implementation here. >>Ben. WBR, Sergei