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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E662EC83F3E for ; Tue, 5 Sep 2023 16:27:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244621AbjIEQXK (ORCPT ); Tue, 5 Sep 2023 12:23:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60308 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1354563AbjIEMl3 (ORCPT ); Tue, 5 Sep 2023 08:41:29 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AA6E21A8; Tue, 5 Sep 2023 05:41:22 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 35C89601BF; Tue, 5 Sep 2023 12:41:22 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8EFACC433C8; Tue, 5 Sep 2023 12:41:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1693917681; bh=7bjn59laMYA7VVyYuv0UAlFCh+TQZjzRtHywg7sV2Aw=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=PTVlgh0GdGDk4WmpmUVrfH+qVJzfmaq3cbvqexNmane40EBFSMjYQe4Vuua5IYThT ZWGF27j6nTw0DweD6bGDo2JzIfFPF2FmKWUVtw4qjRYC26Cv2jG3voqiEyQYDBaF1C F2G4Bx4DJKGGIxBJ25SOHiaL+/TYrBlgASR4FNC7j4iT/ifd021OKypZNqjBlgOGyr pyjPe4GOPzQsP9jo/dJ1MfP1e8Z/dDT/goRwXLfefqMBumWDMqhBuJcevQW56hPTse YawASxyZAN617y3T6c43NyYsj9WAnquoNqUhE2INkeMGJBeqpgOL/sNRwqcVR6ywP2 rMCyHdaKz9mAg== Received: from sofa.misterjones.org ([185.219.108.64] helo=goblin-girl.misterjones.org) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1qdVMt-00AZkj-1L; Tue, 05 Sep 2023 13:41:19 +0100 Date: Tue, 05 Sep 2023 13:41:18 +0100 Message-ID: <86ledkeqs1.wl-maz@kernel.org> From: Marc Zyngier To: Lorenzo Pieralisi Cc: linux-kernel@vger.kernel.org, Robin Murphy , Mark Rutland , linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, Rob Herring , Fang Xiang Subject: Re: [PATCH 2/2] irqchip/gic-v3: Enable non-coherent redistributors/ITSes probing In-Reply-To: References: <20230905104721.52199-1-lpieralisi@kernel.org> <20230905104721.52199-3-lpieralisi@kernel.org> <86msy0etul.wl-maz@kernel.org> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/28.2 (aarch64-unknown-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: lpieralisi@kernel.org, linux-kernel@vger.kernel.org, robin.murphy@arm.com, mark.rutland@arm.com, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, robh+dt@kernel.org, fangxiang3@xiaomi.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: devicetree@vger.kernel.org On Tue, 05 Sep 2023 13:30:47 +0100, Lorenzo Pieralisi wrote: > > On Tue, Sep 05, 2023 at 12:34:58PM +0100, Marc Zyngier wrote: > > I came up with the following alternative approach, which is as usual > > completely untested. It is entirely based on the quirk infrastructure, > > and doesn't touch the ACPI path at all. > > The patch below makes sense and it is much cleaner - provided we > consider this a quirk, which I am not sure it is, that's the only > question I have. Come on, the whole architecture is a bag of sick hacks. And given that it makes the change slightly less ugly, I'd rather have that. M. -- Without deviation from the norm, progress is not possible.