From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mout-p-101.mailbox.org (mout-p-101.mailbox.org [80.241.56.151]) (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 F393D224AF2; Wed, 1 Jul 2026 20:52:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=80.241.56.151 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782939151; cv=none; b=kIkj/U29kG3sZxbV5y26fakefcWT7S7UTNipt8kvxHmore9k5hmLC60kiQdTA8pOFpZNHKWmH6E7uN+lIYJXqBikVHOc4z2OXD/2qulQvKdSco6Nf5dx0Jrrzh0eJwloHhutYjyeoAIizdOkUy/ScI2NBehF9mDpGQo0ROcxK0Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782939151; c=relaxed/simple; bh=06d5UixropJOx5Wzd+7xarOFInoOx8I+uLprKKrYIr4=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=iUDzbtRrwdHB3Q293axbGFkz+52lOURgwTAos09hp0tPBe9RnYE9rLG+UMlu+iXtV3C0tNIvUbimJV91awDi6hLI9UWf2brtFaCWSsjwJJ0C4cqP0jE5XrbHHc+nUNkebeJwRSMNuE928TZvocOaVmCMM+pzX8DvBdGZQrFye5M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=mailbox.org; spf=pass smtp.mailfrom=mailbox.org; dkim=pass (2048-bit key) header.d=mailbox.org header.i=@mailbox.org header.b=geH9T1ar; arc=none smtp.client-ip=80.241.56.151 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=mailbox.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mailbox.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=mailbox.org header.i=@mailbox.org header.b="geH9T1ar" Received: from smtp102.mailbox.org (smtp102.mailbox.org [10.196.197.102]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (4096 bits) server-digest SHA512) (No client certificate requested) by mout-p-101.mailbox.org (Postfix) with ESMTPS id 4grBzG4rRRz8tyR; Wed, 01 Jul 2026 22:52:26 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mailbox.org; s=mail20150812; t=1782939146; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=tv5Thx4xib2D6u4nvbTd9PHuQp4UEDPoY3zy319g1pI=; b=geH9T1arvT8RTmOWz5KdbwFviwOTdh/WRViFR5QKc+jSW/6YrpIe5oyhTCKkx7ZnOQ/JRf kzQ9iL8hAlzSCAxaireIkvfa1z5KIp8dTCEGaiGupDPsHH28HHi4+j7wPEdUzc2e4wUbz4 E/fW0qP1Go3iej80kV3T+MRl0gsy9tFtA2nmKCLWynaVOfEMkS8CEDc2oDtG39Z6dsqQMb lcetn1jAsUslp16VJ/vVlELgT4i0CM74jgFPMUIxQEyGmjE70PSgJ1xm+2luUtIzd55VRD 521wUN7Ebj1Waw8nwaTTQ61nRerjqWZvc8pYzvWPmmaPTXTmH1CF5bq8tM7Hfw== Message-ID: <5d557687-8c7f-4d96-a9e5-699188faa0e7@mailbox.org> Date: Wed, 1 Jul 2026 22:42:36 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Subject: Re: [PATCH v2 3/4] irqchip/gic-v3: Add Renesas R-Car Gen4 erratum workaround To: Marc Zyngier Cc: linux-pci@vger.kernel.org, Yoshihiro Shimoda , =?UTF-8?Q?Krzysztof_Wilczy=C5=84ski?= , Bjorn Helgaas , Catalin Marinas , Conor Dooley , Geert Uytterhoeven , Krzysztof Kozlowski , Lorenzo Pieralisi , Manivannan Sadhasivam , Rob Herring , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org References: <20260618220427.14325-1-marek.vasut+renesas@mailbox.org> <20260618220427.14325-4-marek.vasut+renesas@mailbox.org> <864iivsuaq.wl-maz@kernel.org> Content-Language: en-US From: Marek Vasut In-Reply-To: <864iivsuaq.wl-maz@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-MBO-RS-ID: 266789d046c87441d76 X-MBO-RS-META: d9yyryhzrw8zw46ps7fhxqzeyyscywhd On 6/21/26 7:00 PM, Marc Zyngier wrote: Hello Marc, > On Thu, 18 Jun 2026 23:02:01 +0100, > Marek Vasut wrote: >> >> Renesas R-Car S4/V4H/V4M GIC600 integration has address width for AXI >> or APB interface configured to 32 bit, it can therefore access only >> the first 4 GiB of physical address space. This information comes from >> R-Car V4H Interface Specification sheet, there is currently no technical >> update number assigned to this limitation. Further input from hardware >> engineer indicates that this limitation also applies to R-Car S4 and V4M. >> Name the limitation GEN4GICITS1, and add a driver quirk to mitigate this >> limitation. >> >> The quirk is keyed on the combination of the GIC implementation >> and the platform identification in the device tree. >> >> Signed-off-by: Yoshihiro Shimoda >> Signed-off-by: Marek Vasut > > With the SoB chain issue addressed: > > Acked-by: Marc Zyngier I hope this is now addressed in V3.