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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A89CDC3ABC0 for ; Wed, 7 May 2025 13:59:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type:MIME-Version: References:In-Reply-To:Subject:Cc:To:From:Message-ID:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=jgdG9g5a16KydSHuqJGGH4CRqlbDz7Tc69qdAm+XycE=; b=HFTsakJLmv50u5KG9D2GLxk185 wR0QkCQorjEek7OWVhzTl3DA9M11ODXh8wzm3fgmWSQEu0HBbFD1azawQdNeGJe/chGS7xM/w4TXp cpGEidbjPXxy9Yq+DHYJ6D9cO3K6G0WFDm5rXEzc4CPyUC5I41DcW8EDTArLfJ1l1+uJ8Dr+WFmor DpFEHK0cxIWcfT17xeLWPtO6V16jkNJ32m1LuKLG6dyhPAfp465QAmysbrVNkDJ6vk4SzSI3mBg2d /RTE+bwVvuZ8WzpSSbvbvFVO2yMi0RVMAO2UJ1OgLVAQOKLPkvXAAG/9GUJYc2Tu0dKqYF65lq5mE wb61iqZw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uCfIw-0000000Ffwo-3F5i; Wed, 07 May 2025 13:59:22 +0000 Received: from tor.source.kernel.org ([172.105.4.254]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uCfCA-0000000FdgT-2sVD for linux-arm-kernel@lists.infradead.org; Wed, 07 May 2025 13:52:22 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id C2A6B629D4; Wed, 7 May 2025 13:52:21 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 61A13C4CEE8; Wed, 7 May 2025 13:52:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1746625941; bh=AszsYS9kaQlqOkqCKKYjZV2HbCdXbS7+C+6V2dMqN4I=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=d1JraCFIABLuS/JIViKSBy+OkhfJeroT4EcMxnK4kQWUEJmgHhqbqxQErYISuot0e YUrLHJCzC76ootLFumDzT1JYqN1Uss7FfYSl6kmSuOqwFRj6AGAoYgCu1rhb+pmSJs AYurs4bPZ3DE7ZB9c4VjViMRbFWD297pX9+DUExzHoEBKiO1mEsyercnBB1oEDOZBV Dnx5R9Mgnh6pwqF4Dgr2DbGe9/c4CMOVT71e8m4Y9t5+vvRL1njVMrN0jqt4SIW5cK 0TI/Nfa5zZIcRhHkkrl+/ZI3dRTZAmSgBEh0mccUc6kB9hfdBNTZfBGaOsuMogqCkV UE9NkJhBdC5tQ== 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 1uCfC7-00CdCe-8k; Wed, 07 May 2025 14:52:19 +0100 Date: Wed, 07 May 2025 14:52:18 +0100 Message-ID: <867c2sh6jx.wl-maz@kernel.org> From: Marc Zyngier To: Thomas Gleixner Cc: Lorenzo Pieralisi , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Catalin Marinas , Will Deacon , Arnd Bergmann , Sascha Bischoff , Timothy Hayes , "Liam R.\ Howlett" , Mark Rutland , Jiri Slaby , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Subject: Re: [PATCH v3 20/25] irqchip/gic-v5: Add GICv5 PPI support In-Reply-To: <87ecx0mt9p.ffs@tglx> References: <20250506-gicv5-host-v3-0-6edd5a92fd09@kernel.org> <20250506-gicv5-host-v3-20-6edd5a92fd09@kernel.org> <87zffpn5rk.ffs@tglx> <86a57ohjey.wl-maz@kernel.org> <87ecx0mt9p.ffs@tglx> 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/30.1 (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: tglx@linutronix.de, lpieralisi@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, catalin.marinas@arm.com, will@kernel.org, arnd@arndb.de, sascha.bischoff@arm.com, timothy.hayes@arm.com, Liam.Howlett@oracle.com, mark.rutland@arm.com, jirislaby@kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, 07 May 2025 14:42:42 +0100, Thomas Gleixner wrote: > > On Wed, May 07 2025 at 10:14, Marc Zyngier wrote: > > On Tue, 06 May 2025 16:00:31 +0100, > > Thomas Gleixner wrote: > >> > >> How does this test distinguish between LEVEL_LOW and LEVEL_HIGH? It only > >> tests for level, no? So the test is interesting at best ... > > > > There is no distinction between HIGH and LOW, RISING and FALLING, in > > any revision of the GIC architecture. > > Then pretending that there is a set_type() functionality is pretty daft You still need to distinguish between level and edge when this is programmable (which is the case for a subset of the PPIs). M. -- Without deviation from the norm, progress is not possible.