From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933257AbWKSUsQ (ORCPT ); Sun, 19 Nov 2006 15:48:16 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933263AbWKSUsQ (ORCPT ); Sun, 19 Nov 2006 15:48:16 -0500 Received: from gate.crashing.org ([63.228.1.57]:27047 "EHLO gate.crashing.org") by vger.kernel.org with ESMTP id S933257AbWKSUsP (ORCPT ); Sun, 19 Nov 2006 15:48:15 -0500 Subject: Re: [PATCH] 2.6.18-rt7: PowerPC: fix breakage in threaded fasteoi type IRQ handlers From: Benjamin Herrenschmidt To: Sergei Shtylyov Cc: linuxppc-dev@ozlabs.org, Ingo Molnar , linux-kernel@vger.kernel.org, dwalker@mvista.com In-Reply-To: <4560C23D.6080304@ru.mvista.com> 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> <4560C23D.6080304@ru.mvista.com> Content-Type: text/plain Date: Mon, 20 Nov 2006 07:48:09 +1100 Message-Id: <1163969289.5826.121.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.8.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > Sorry, it's the same for x86 version of OpenPIC according to spec. I meant > the PPC implementation here. Same OpenPIC.. it can deal with both INTACK cycles and reading from an INTACK register. On some PPC's, we actually have logic in the bridge to generate the INTACK cycle (which exist on PCI) though we only use that with 8259's currently as it's not really more efficient than just reading from the INTACK register of the OpenPIC. Ben.