From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 04AE9289E2F; Wed, 7 May 2025 13:52:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746625942; cv=none; b=Lr7uYogqJZtfRoEHv10Hhh6g7fyCP/4C4gbxwtORRNtMNi6fi8pVokAAV5UMNKaGrRakpYhusHg1012SsChczkYwOqsjM/+ByXtec0gY9JoyN8tcWdotr+niCfVziF9vpJU9MHgkLfPMdsfEyF4snv/eHm7s+nLgEiymABxqnxw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746625942; c=relaxed/simple; bh=AszsYS9kaQlqOkqCKKYjZV2HbCdXbS7+C+6V2dMqN4I=; h=Date:Message-ID:From:To:Cc:Subject:In-Reply-To:References: MIME-Version:Content-Type; b=XeMrHpCLqpCYpiHZop90DnPsJSA458v0z6fnat14sr18r7TWbjx0KCjXnfZIX+xQonpuIRW54UmVGDUApLSdGd3I8j9wjaccJs7G3+an8YddY+wJCygKFC/YuiKQrOnt7xa8jtJ1vOEiYRtq5u5Ve8zXStADjgpGPN/zhqoV5/0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=d1JraCFI; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="d1JraCFI" 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) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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 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.