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=-7.0 required=3.0 tests=BAYES_00,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=no 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 87D70C4361B for ; Fri, 11 Dec 2020 15:37:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 262EA23121 for ; Fri, 11 Dec 2020 15:37:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2437632AbgLKPDr (ORCPT ); Fri, 11 Dec 2020 10:03:47 -0500 Received: from mail.kernel.org ([198.145.29.99]:33314 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2437576AbgLKPDM (ORCPT ); Fri, 11 Dec 2020 10:03:12 -0500 Received: from disco-boy.misterjones.org (disco-boy.misterjones.org [51.254.78.96]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id E8CC32312A; Fri, 11 Dec 2020 15:01:57 +0000 (UTC) Received: from 78.163-31-62.static.virginmediabusiness.co.uk ([62.31.163.78] helo=wait-a-minute.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94) (envelope-from ) id 1knjvg-000TxV-3j; Fri, 11 Dec 2020 15:01:56 +0000 From: Marc Zyngier To: shawnguo@kernel.org, linux@rasmusvillemoes.dk, leoyang.li@nxp.com, mark.rutland@arm.com, zhiqiang.hou@nxp.com, Biwen Li , robh+dt@kernel.org, tglx@linutronix.de, linux-kernel@vger.kernel.org, Valentin Schneider , linux-arm-kernel@lists.infradead.org Cc: xiaobo.xie@nxp.com, Hou Zhiqiang , devicetree@vger.kernel.org, Biwen Li , jiafei.pan@nxp.com, Florian Fainelli , Gregory Clement , Lorenzo Pieralisi , Ray Jui , Andrew Lunn , Scott Branden , Sebastian Hesselbarth Subject: Re: [PATCH 0/5] genirq: Get rid of handle_percpu_devid_fasteoi_ipi() Date: Fri, 11 Dec 2020 15:01:41 +0000 Message-Id: <160769813659.482133.5814325145566604439.b4-ty@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201109094121.29975-1-valentin.schneider@arm.com> References: <20201109094121.29975-1-valentin.schneider@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 62.31.163.78 X-SA-Exim-Rcpt-To: shawnguo@kernel.org, linux@rasmusvillemoes.dk, leoyang.li@nxp.com, mark.rutland@arm.com, zhiqiang.hou@nxp.com, biwen.li@oss.nxp.com, robh+dt@kernel.org, tglx@linutronix.de, linux-kernel@vger.kernel.org, valentin.schneider@arm.com, linux-arm-kernel@lists.infradead.org, xiaobo.xie@nxp.com, Zhiqiang.Hou@nxp.com, devicetree@vger.kernel.org, biwen.li@nxp.com, jiafei.pan@nxp.com, f.fainelli@gmail.com, gregory.clement@bootlin.com, Lorenzo.Pieralisi@arm.com, rjui@broadcom.com, andrew@lunn.ch, sbranden@broadcom.com, sebastian.hesselbarth@gmail.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 9 Nov 2020 09:41:16 +0000, Valentin Schneider wrote: > While hacking on the GIC flow handlers, I grew increasingly suspicious of > handle_percpu_devid_fasteoi_ipi() and thus did a bit of digging. AFAICT it isn't > actually needed and handle_percpu_devid_irq() would suffice. Argumentation is in > patch 1. > > Tested on my Juno (GICv2) and eMAG (GICv3). > > [...] Applied to irq/irqchip-next, thanks! [1/5] irqchip/gic, gic-v3: Make SGIs use handle_percpu_devid_irq() commit: 6abbd6988971aaa607b026eaa0ffd2301352f2ea [2/5] irqchip/armada-370-xp: Make IPIs use handle_percpu_devid_irq() commit: e52e73b7e9f7d08b8c2ef6fb1657105093e22a03 [3/5] irqchip/bcm2836: Make IPIs use handle_percpu_devid_irq() commit: ffdad793d579c9286c7b67a86d1a3c890fb32082 [4/5] irqchip/hip04: Make IPIs use handle_percpu_devid_irq() commit: a2e042e13ff322ad523a2f131dd6e03e8bc05053 [5/5] Revert "genirq: Add fasteoi IPI flow" commit: b388fa50142510fb6477f130bb1b3f05a0a263a1 Cheers, M. -- Without deviation from the norm, progress is not possible.