From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DB495C433E0 for ; Fri, 31 Jul 2020 12:11:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BB580208E4 for ; Fri, 31 Jul 2020 12:11:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1733177AbgGaMLl (ORCPT ); Fri, 31 Jul 2020 08:11:41 -0400 Received: from foss.arm.com ([217.140.110.172]:56386 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1733082AbgGaMLQ (ORCPT ); Fri, 31 Jul 2020 08:11:16 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id F02601FB; Fri, 31 Jul 2020 05:11:14 -0700 (PDT) Received: from e113632-lin (e113632-lin.cambridge.arm.com [10.1.194.46]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 131753F71F; Fri, 31 Jul 2020 05:11:13 -0700 (PDT) References: <20200730170321.31228-1-valentin.schneider@arm.com> <20200730170321.31228-3-valentin.schneider@arm.com> <10da73b8a8937b08b0993513d6c20e98@kernel.org> <8dfeb7782d7ffaa1f107a8e4aca10840@kernel.org> User-agent: mu4e 0.9.17; emacs 26.3 From: Valentin Schneider To: Marc Zyngier Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Thomas Gleixner , Jason Cooper , Lorenzo Pieralisi Subject: Re: [PATCH v2 2/2] irqchip/gic-v2, v3: Prevent SW resends entirely In-reply-to: <8dfeb7782d7ffaa1f107a8e4aca10840@kernel.org> Date: Fri, 31 Jul 2020 13:11:08 +0100 Message-ID: MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 31/07/20 12:27, Marc Zyngier wrote: >> Look for anything that performs an interrupt allocation by calling >> into the parent with a 3 cell (DT case) fwspec. There is a bunch >> of them. > > For what it is worth, I have just pushed out a branch[1] containing some > of this rework as well as your patches. > Brilliant, thanks for taking a shot at this! I'll try to look for stragglers. > The only tricky part is the GICv4.1 doorbell retriggering, which just > can't be re-injected. It shouldn't matter though. Same for vSGIs, they > never fire on the host. > > Thanks, > > M. > > [1] > https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git/log/?h=irq/gic-retrigger