Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753551AbbK3L7T (ORCPT ); Mon, 30 Nov 2015 06:59:19 -0500 Received: from mailapp01.imgtec.com ([195.59.15.196]:45767 "EHLO mailapp01.imgtec.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751018AbbK3L7S (ORCPT ); Mon, 30 Nov 2015 06:59:18 -0500 Subject: Re: [PATCH v2 09/19] genirq: Add a new function to get IPI reverse mapping To: Thomas Gleixner References: <1448453217-3874-1-git-send-email-qais.yousef@imgtec.com> <1448453217-3874-10-git-send-email-qais.yousef@imgtec.com> <5658429D.3000105@imgtec.com> <565C2ABD.5030409@imgtec.com> CC: , , , , , From: Qais Yousef Message-ID: <565C3A14.10401@imgtec.com> Date: Mon, 30 Nov 2015 11:59:16 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [192.168.154.94] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1343 Lines: 34 On 11/30/2015 11:22 AM, Thomas Gleixner wrote: > On Mon, 30 Nov 2015, Qais Yousef wrote: >> On 11/30/2015 10:40 AM, Thomas Gleixner wrote: >>> On Fri, 27 Nov 2015, Qais Yousef wrote: >>>> While trying to get my remoteproc driver work with this I uncovered a >>>> problem >>>> with this approach. >>>> >>>> mips-gic doesn't store the actual hwirq in the irq_data. It uses >>>> GIC_SHARED_TO_HWIRQ() and GIC_HWIRQ_TO_SHARED() to add and remove an >>>> offset. >>> Why can't MIPS store the real hwirq number in irq_data? >> >> I'm wary of ending up in inconsistency hell where some functions need to deal >> with raw hwirq and others with translated ones. >> >> I will give this a go first and see if it gets really ugly. > Well, the question is why can't those functions not all use the raw > hardware irq. We have it in irq_data exactly to avoid calculations in > the hot path functions. > I'll see what I can do as part of this series. I think I can fix the new IPI and device domains, but can't promise about the root gic domain. It might be too big of a change for this series. Thanks, Qais -- 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/